/* ════════════════════════════════════════════════════════════
   ★ LỊCH HỌC TUẦN (Study Calendar)
   ════════════════════════════════════════════════════════════ */

.study-cal-card { padding: 20px 24px 16px; }

.study-cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 10px;
}

.study-cal-streak {
  display: flex;
  align-items: center;
  gap: 5px;
  background: linear-gradient(135deg, #FFF7ED, #FEF3C7);
  border: 1.5px solid #FDE68A;
  border-radius: 20px;
  padding: 5px 14px;
}
.cal-fire       { font-size: 16px; }
.cal-streak-num { font-size: 18px; font-weight: 800; color: #D97706; line-height: 1; }
.cal-streak-lbl { font-size: 12px; color: #92400E; font-weight: 500; }

.study-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}

.cal-day {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 4px 10px;
  border-radius: 14px;
  cursor: default;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  border: 1.5px solid transparent;
}
.cal-day:hover { transform: translateY(-2px); }

.cal-day-label {
  font-size: 11px;
  font-weight: 600;
  color: #9CA3AF;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.cal-day-num {
  font-size: 13px;
  font-weight: 700;
  color: #374151;
}

.cal-day-icon {
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s;
}

/* Trạng thái: đã học */
.cal-day.done {
  background: #F0FDF4;
  border-color: #BBF7D0;
}
.cal-day.done .cal-day-label { color: #059669; }
.cal-day.done .cal-day-num   { color: #065F46; }
.cal-day.done .cal-day-icon  {
  background: linear-gradient(135deg, #10B981, #059669);
  color: #fff;
  font-size: 15px;
}
.cal-day.done:hover { box-shadow: 0 4px 14px rgba(16,185,129,0.25); }

/* Trạng thái: chưa học */
.cal-day.todo {
  background: #F9FAFB;
  border-color: #F3F4F6;
}
.cal-day.todo .cal-day-icon {
  background: #F3F4F6;
  color: #9CA3AF;
  font-size: 14px;
}
.cal-day.todo:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.07); }

/* Trạng thái: tương lai */
.cal-day.future {
  background: #FAFAFA;
  border-color: #F3F4F6;
  opacity: 0.55;
}
.cal-day.future .cal-day-icon {
  background: #F3F4F6;
  color: #D1D5DB;
}

/* Hôm nay — vòng viền đặc biệt */
.cal-day.today {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.cal-day.today .cal-day-label { color: #2D7FC1; font-weight: 700; }
.cal-day.today .cal-day-num   { color: #1D4ED8; }

.cal-today-ring {
  position: absolute;
  top: 4px;
  right: 6px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* Legend */
.study-cal-legend {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid #F3F4F6;
  flex-wrap: wrap;
}
.cal-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #6B7280;
}
.cal-legend-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
}
.cal-legend-dot.cal-done  { background: linear-gradient(135deg,#10B981,#059669); color: #fff; }
.cal-legend-dot.cal-todo  { background: #F3F4F6; color: #9CA3AF; border: 1.5px solid #E5E7EB; }
.cal-legend-dot.cal-today-dot { background: var(--accent); border: 2px solid var(--accent); }

/* Tooltip */
.cal-tooltip {
  position: fixed;
  z-index: 999;
  pointer-events: none;
  background: #1F2937;
  color: #F9FAFB;
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.5;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  white-space: nowrap;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  max-width: 200px;
}
.cal-tooltip.show { opacity: 1; transform: translateY(0); }
.cal-tooltip-title { font-weight: 700; font-size: 13px; margin-bottom: 2px; }
.cal-tooltip-sub   { color: #9CA3AF; font-size: 11px; }
.cal-tooltip-status-done { color: #34D399; font-weight: 600; }
.cal-tooltip-status-todo { color: #9CA3AF; }
.cal-tooltip-status-future { color: #6B7280; }

/* Dark mode */
body.dark .study-cal-card          { background: var(--card); border-color: var(--card-border); }
body.dark .study-cal-streak        { background: linear-gradient(135deg,#3D2500,#2D1F00); border-color: #92400E; }
body.dark .cal-streak-lbl          { color: #FDE68A; }
body.dark .cal-day.done            { background: #052e16; border-color: #065F46; }
body.dark .cal-day.done .cal-day-label { color: #34D399; }
body.dark .cal-day.done .cal-day-num   { color: #6EE7B7; }
body.dark .cal-day.todo            { background: var(--card); border-color: var(--card-border); }
body.dark .cal-day.todo .cal-day-icon  { background: var(--card-border); color: #475569; }
body.dark .cal-day.todo .cal-day-label { color: #475569; }
body.dark .cal-day.todo .cal-day-num   { color: #64748B; }
body.dark .cal-day.future          { background: #161E2D; border-color: var(--card); }
body.dark .cal-day.today           { border-color: var(--accent); }
body.dark .cal-day.today .cal-day-label { color: #60A5FA; }
body.dark .cal-day.today .cal-day-num   { color: #93C5FD; }
body.dark .study-cal-legend        { border-color: var(--card-border); }
body.dark .cal-legend-item         { color: #94A3B8; }
body.dark .cal-legend-dot.cal-todo { background: var(--card-border); border-color: #475569; }

/* ════════════════════════════════════════════════════════════
   ★ SHARED PAGE COMPONENTS
   ════════════════════════════════════════════════════════════ */

/* Subtitle dưới tiêu đề trang — dùng chung cho tất cả các trang */
.page-subtitle {
  font-size: 13px;
  color: #9CA3AF;
  margin: 3px 0 0;
  font-weight: 400;
}
body.dark .page-subtitle { color: #475569; }

/* ════════════════════════════════════════════════════════════
   ★ KỸ NĂNG (Skills)
   ════════════════════════════════════════════════════════════ */

.sk-summary { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-bottom:20px; }
.sk-stat,
.sk-tab {
  flex:1; background:var(--card); border-radius:10px; border:1px solid var(--border);
  padding:12px 10px; text-align:center; box-shadow:none;
  cursor: pointer; transition: all 0.15s; font-family: inherit;
}
.sk-stat .v,
.sk-tab .v { font-size:1.3rem; font-weight:800; color:var(--t1); }
.sk-stat .l,
.sk-tab .l { font-size:11px; color:var(--t3); margin-top:2px; }
.sk-tab:hover { transform: translateY(-1px); border-color: rgba(255,255,255,0.16); }
.sk-tab.active { background: var(--lift); }

.sk-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; align-items:start; }

/* PC: accordion — mỗi thẻ cao theo nội dung, không bị kéo giãn khi thẻ khác mở */
@media (min-width: 769px) {
  .sk-grid {
    align-items: start;
  }
}

.sk-set {
  background:#fff; border-radius:16px; border:1px solid #F3F4F6;
  overflow:hidden; box-shadow:0 1px 6px rgba(0,0,0,0.05);
}
.sk-set-hd {
  display:flex; align-items:center; gap:8px; padding:16px 14px;
  min-height:76px;
  cursor:pointer; user-select:none; transition:background 0.15s;
  border-bottom:1px solid #F9FAFB;
}
.sk-set-hd:hover { background:#F9FAFB; }
.sk-set-icon  { font-size:20px; flex-shrink:0; }
.sk-set-info  { flex:1; min-width:0; display:flex; flex-direction:column; gap:2px; }
.sk-set-title { font-size:13px; font-weight:700; color:#1F2937; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; line-height:1.2; }
.sk-set-bar   { height:6px; background:#F3F4F6; border-radius:3px; overflow:hidden; }
.sk-set-fill  { height:100%; border-radius:3px; background:linear-gradient(90deg,var(--accent),#10B981); transition:width 0.5s ease; }
.sk-set-right { display:flex; flex-direction:column; align-items:flex-end; gap:6px; flex-shrink:0; }
.sk-set-pct   { font-size:13px; font-weight:700; color:var(--accent); }
.sk-set-meta  { font-size:10px; color:#9CA3AF; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.sk-arrow     { font-size:10px; color:#9CA3AF; transition:transform 0.2s; flex-shrink:0; }

.sk-donut {
  width:40px; height:40px; border-radius:50%; flex-shrink:0;
  display:flex; align-items:center; justify-content:center; position:relative;
}
.sk-donut-inner {
  width:28px; height:28px; border-radius:50%; background:#fff;
  position:absolute; display:flex; align-items:center; justify-content:center;
}
.sk-donut-pct { font-size:9px; font-weight:800; color:#1F2937; line-height:1; z-index:1; position:relative; }

.sk-body { padding:12px 20px 16px; }
.sk-skill { margin-bottom:10px; }
.sk-skill-row {
  display:flex; flex-direction:column; gap:6px; padding:8px 10px;
  border-radius:10px; cursor:pointer; transition:background 0.12s;
}
.sk-skill-row:hover  { background:#F3F4F6; }
.sk-skill-top {
  display:flex; align-items:center; justify-content:space-between; gap:8px;
  min-width:0;
}
.sk-skill-name       { flex:1; font-size:13px; font-weight:600; color:#374151; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.sk-skill-bar-wrap   { width:100%; }
.sk-skill-bar        { height:6px; background:#E5E7EB; border-radius:3px; overflow:hidden; }
.sk-skill-fill       { height:100%; border-radius:3px; transition:width 0.4s ease; }
.sk-skill-pct        { font-size:11px; color:#6B7280; white-space:nowrap; flex-shrink:0; }

.sk-sub-list { padding:4px 0 0 10px; }
.sk-sub {
  display:flex; align-items:center; gap:8px; padding:5px 10px;
  font-size:12px; border-radius:8px; transition:background 0.1s;
}
.sk-sub:hover         { background:#F9FAFB; }
.sk-sub-dot           { width:8px; height:8px; border-radius:50%; flex-shrink:0; }
.sk-sub-dot.done      { background:#10B981; }
.sk-sub-dot.todo      { background:#E5E7EB; border:1.5px solid #D1D5DB; }
.sk-sub-title         { flex:1; }
.sk-sub-title.done    { color:#6B7280; text-decoration:line-through; }
.sk-sub-title.todo    { color:#374151; }

.sk-badge          { font-size:9px; font-weight:700; padding:2px 6px; border-radius:10px; white-space:nowrap; flex-shrink:0; }
.sk-badge.achieved { background:#D1FAE5; color:#065F46; }
.sk-badge.review   { background:#FEF3C7; color:#92400E; }
.sk-badge.new      { background:#F3F4F6; color:#6B7280; }

/* ── Skills — dark mode ── */
body.dark .sk-stat    { background: var(--card); border-color: var(--card-border); }
body.dark .sk-stat .v { color: var(--text-1); }
body.dark .sk-stat .l { color: var(--text-3); }
body.dark .sk-set     { background: var(--card); border-color: var(--card-border); }
body.dark .sk-set-hd  { border-bottom-color: var(--card-border); }
body.dark .sk-set-hd:hover { background: var(--bg); }
body.dark .sk-set-title { color: var(--text-1); }
body.dark .sk-set-bar   { background: var(--card-border); }
body.dark .sk-set-meta  { color: var(--text-3); }
body.dark .sk-arrow     { color: var(--text-3); }
body.dark .sk-donut-inner { background: var(--card); }
body.dark .sk-donut-pct   { color: var(--text-1); }
body.dark .sk-skill-row:hover { background: var(--bg); }
body.dark .sk-skill-name { color: var(--text-1); }
body.dark .sk-skill-bar  { background: var(--card-border); }
body.dark .sk-skill-pct  { color: var(--text-2); }
body.dark .sk-sub:hover  { background: var(--bg); }
body.dark .sk-sub-dot.todo { background: var(--card-border); border-color: var(--text-3); }
body.dark .sk-sub-title.done { color: var(--text-3); }
body.dark .sk-sub-title.todo { color: var(--text-2); }
body.dark .sk-badge.new { background: var(--card-border); color: var(--text-2); }

/* ── Welcome banner ── */
.welcome-banner {
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1E3A8A 0%, #6D28D9 55%, #92400E 100%);
}

.banner-dots {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  background-image: radial-gradient(circle, white 1px, transparent 1px);
  background-size: 40px 40px;
}

.banner-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.banner-inner .greeting {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
}

.banner-inner h2 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-top: 4px;
}

.banner-inner p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 4px;
}

.banner-code {
  font-size: 80px;
  color: rgba(255, 255, 255, 0.2);
  line-height: 1;
  user-select: none;
}

/* ── Stats row ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

/* ── Progress ── */
.progress-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.progress-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.prog-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 15px;
}

.prog-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.prog-name {
  font-size: 13px;
  font-weight: 500;
  color: #374151;
}

.prog-pct {
  font-size: 12px;
  font-weight: 600;
}

.prog-bar-wrap {
  flex: 1;
}

/* ── Course filters + grid ── */
.courses-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.courses-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--t1);
}

.filter-group {
  display: flex;
  gap: 8px;
}

.courses-controls {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.sort-dropdown-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sort-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--t2);
}

.sort-select {
  padding: 8px 12px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--t1);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  outline: none;
}

.sort-select:hover {
  border-color: var(--blue);
  background: var(--lift);
}

.sort-select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* ════════════════════════════════════════════
   SEARCH BAR + DROPDOWN — Courses page (Courses.tsx)
   ════════════════════════════════════════════ */

.courses-search-bar-wrap {
  position: relative;
  flex: 1;
}

.csb-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 1;
  color: var(--t3);
  display: flex;
}

.courses-search-bar-input {
  width: 100%;
  height: 38px;
  padding: 0 40px 0 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.82rem;
  color: var(--t1);
  background: var(--card);
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.courses-search-bar-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.courses-search-bar-input::placeholder { color: var(--t3); }

.csb-clear {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  cursor: pointer;
  color: var(--t2);
  font-size: 11px;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.15s, color 0.15s;
}
.csb-clear:hover { background: #EF4444; color: #fff; }

/* ── Dropdown ── */
.course-search-hints {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  width: 100%;
  background: #fff;
  border: 1px solid #E5E7EB;
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.14);
  padding: 14px 16px;
  box-sizing: border-box;
  z-index: 500;
}

.csh-label {
  font-size: 11px;
  font-weight: 700;
  color: #9CA3AF;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.csh-pills { display: flex; flex-wrap: wrap; gap: 8px; }

.csh-pill {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1.5px solid #E5E7EB;
  background: #F9FAFB;
  color: #374151;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}
.csh-pill:hover { border-color: var(--accent); background: #EFF6FF; color: #2D7FC1; }

.csh-results { list-style: none; padding: 0; margin: 0; }

.csh-result-item {
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  color: #1F2937;
  transition: background 0.15s;
}
.csh-result-item:hover { background: #F0F7FF; color: var(--accent); }

.csh-no-result { padding: 10px 12px; font-size: 13px; color: #9CA3AF; list-style: none; }

/* ── Filter panel ── */
.course-filter-panel {
  background: #fff;
  border: 1.5px solid #E9ECF0;
  border-radius: 16px;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

/* ── Dark mode ── */
body.dark .courses-header h2 { color: #F1F5F9; }
body.dark .filter-btn { background: var(--card); color: #94a3b8; border: 1px solid var(--card-border); }
body.dark .filter-btn:hover { background: var(--card-border); color: #e2e8f0; }
body.dark .sort-label { color: #94A3B8; }
body.dark .sort-select { background: var(--card); border-color: var(--card-border); color: #E2E8F0; }
body.dark .sort-select:hover { background: var(--card-border); border-color: var(--accent); }
body.dark .sort-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(74, 158, 224, 0.2); }
body.dark .courses-search-bar-input { background: var(--card); border-color: var(--card-border); color: #e2e8f0; }
body.dark .courses-search-bar-input:focus { border-color: var(--accent); }
body.dark .courses-search-bar-input::placeholder { color: #475569; }
body.dark .csb-clear { background: var(--card-border); color: #94a3b8; }
body.dark .course-search-hints { background: var(--card); border-color: var(--card-border); }
body.dark .csh-pill { background: var(--bg); border-color: var(--card-border); color: #94a3b8; }
body.dark .csh-pill:hover { border-color: var(--accent); background: var(--card); color: var(--accent-light); }
body.dark .csh-result-item { color: #e2e8f0; }
body.dark .csh-result-item:hover { background: #1e3a5f; color: var(--accent-light); }
body.dark .course-filter-panel { background: var(--card); border-color: var(--card-border); }

/* ── Filter pill rows ── */
.filter-pill-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.pill-label {
  font-size: 11px;
  font-weight: 700;
  color: #6B7280;
  min-width: 72px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pill-btn {
  padding: 5px 13px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--t3);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  line-height: 1.4;
}

.pill-btn:hover {
  border-color: var(--purple);
  color: #C4B5FD;
  background: rgba(139,92,246,0.08);
}

.pill-btn.active {
  background: rgba(139,92,246,0.14);
  border-color: rgba(139,92,246,0.4);
  color: #A78BFA;
  font-weight: 600;
}

.pill-btn.active:hover {
  background: rgba(139,92,246,0.2);
  border-color: rgba(139,92,246,0.5);
}

/* ── Active filter chips ── */
.active-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px dashed #E9ECF0;
}

.active-filters-label {
  font-size: 11px;
  font-weight: 700;
  color: #9CA3AF;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 2px;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px 4px 12px;
  border-radius: 999px;
  background: #DBEAFE;
  color: #1D4ED8;
  font-size: 12px;
  font-weight: 600;
  border: 1.5px solid #93C5FD;
}

.filter-chip button {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #93C5FD;
  border: none;
  color: #1D4ED8;
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background 0.15s, color 0.15s;
  line-height: 1;
}

.filter-chip button:hover { background: #EF4444; color: #fff; }

.hidden {
  display: none !important;
}

.filter-btn {
  padding: 6px 13px;
  border-radius: 7px;
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  background: var(--card);
  color: var(--t2);
  transition: all 0.2s;
}

.filter-btn.active {
  background: rgba(59,130,246,0.12);
  border-color: rgba(59,130,246,0.35);
  color: var(--blue-light);
  box-shadow: none;
}

.courses-grid {
  display: grid;
  /* auto-fit + min() : card giãn đều kín bề ngang page, không dồn cục bên trái;
     min(280px,100%) chống tràn ngang trên màn hình < 280px. */
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: 18px;
  align-items: stretch;
}

.course-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border);
  box-shadow: none;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  /* Flex column để card cùng hàng cao bằng nhau, footer luôn thẳng hàng đáy */
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.35);
  border-color: rgba(255,255,255,0.12);
}

.card-img-wrap {
  position: relative;
  height: 140px;
  overflow: hidden;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.course-card:hover .card-img-wrap img {
  transform: scale(1.06);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(0, 0, 0, 0.5) 100%);
  transition: background 0.4s;
}

.badge-level {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 3px 9px;
  border-radius: 4px;
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
}

.badge-enrolled {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 3px 9px;
  border-radius: 99px;
  background: rgba(16,185,129,0.9);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
}

.card-title-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  /* 2026-07-04: guard chống mất chữ — nền gradient tối + text-shadow, tiêu đề luôn
     đọc được bất kể art phía sau (từng bị chữ nướng trong SVG đè lên). */
  padding: 26px 12px 12px;
  background: linear-gradient(180deg, rgba(6, 11, 22, 0) 0%, rgba(6, 11, 22, 0.55) 40%, rgba(6, 11, 22, 0.88) 100%);
}
.card-title-overlay h3,
.card-tag {
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.85);
}

.card-tag {
  color: rgba(255,255,255,0.9);
  font-size: 10px;
  font-weight: 600;
  opacity: 0.85;
}

.card-title-overlay h3 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-top: 2px;
  letter-spacing: -0.2px;
}

.card-body {
  padding: 12px 16px 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-desc {
  font-size: 0.78rem;
  color: var(--t2);
  line-height: 1.55;
  margin: 0 0 10px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.card-stats {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.card-stat {
  display: flex;
  align-items: center;
  gap: 3px;
  color: var(--t3);
  font-size: 0.76rem;
}

.card-stat .rating {
  color: var(--t1);
  font-weight: 600;
}

.card-footer {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: auto; /* đẩy footer xuống đáy để hàng nút thẳng hàng giữa các card */
}
.card-footer-spacer { flex: 1; }

.card-level-pill {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 9px;
  color: var(--t3);
  font-size: 0.7rem;
}

.card-lessons {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--t3);
  font-size: 12px;
}

.card-btn-ghost,
.card-btn-enroll,
.card-btn-enrolled {
  height: 30px;
  padding: 0 12px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 0.74rem;
  font-weight: 600;
  white-space: nowrap;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.card-btn-ghost { background: rgba(255,255,255,0.04); color: var(--t2); }
.card-btn-ghost:hover { background: rgba(255,255,255,0.08); color: var(--t1); }
.card-btn-enroll { background: linear-gradient(135deg, var(--blue), var(--purple)); color: #fff; }
.card-btn-enroll:hover { opacity: 0.82; }
.card-btn-enrolled { background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.35); color: #10B981; }
.card-btn-enrolled:hover { opacity: 0.82; }

.empty {
  text-align: center;
  padding: 48px 0;
}

.empty-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.empty p {
  font-size: 14px;
  color: var(--t3);
}

.courses-header h2 { display: flex; align-items: center; gap: 6px; }
.courses-subtitle { color: var(--t3); font-size: 0.78rem; margin-top: 2px; }
.courses-filter-row { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }

/* -- Setting wrap (correct values, pages.css is source of truth) -- */
.settings-wrap {
  max-width: 700px;
  margin: 0 auto;
  width: 100%;
}

.field-input {
  height: auto;
  font-size: 13px;
  border-radius: 12px;
  padding: 8px 12px;
}

.settings-section-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

.fields-grid {
  gap: 12px;
}

.save-btn {
  padding: 12px 24px;
  font-size: 14px;
  border-radius: 12px;
}

/* ════════════════════════════════════════════════════════════
   ★ GIAO DIỆN ROADMAP — HERO + TOOLBAR
   ════════════════════════════════════════════════════════════ */

/* Hero banner */
.rm-hero {
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, #EFF6FF 0%, #F0FDF4 50%, #FAF5FF 100%);
  border: 1px solid #DBEAFE;
  border-radius: 20px;
  padding: 22px 28px;
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
}
.rm-hero::before {
  content: '';
  position: absolute;
  top: -30px; right: -30px;
  width: 160px; height: 160px;
  background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.rm-hero-icon {
  font-size: 48px;
  flex-shrink: 0;
  filter: drop-shadow(0 4px 8px rgba(59,130,246,0.25));
}
.rm-hero-body { flex: 1; min-width: 0; }
.rm-hero-title {
  font-size: 22px;
  font-weight: 800;
  color: #1E3A5F;
  letter-spacing: -0.3px;
}
.rm-hero-sub {
  font-size: 13px;
  color: #64748B;
  margin-top: 4px;
  line-height: 1.5;
}
.rm-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.rm-hero-tag {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid transparent;
}
.rm-tag-blue   { background: #EFF6FF; color: #2563EB; border-color: #BFDBFE; }
.rm-tag-green  { background: #F0FDF4; color: #16A34A; border-color: #BBF7D0; }
.rm-tag-purple { background: #FAF5FF; color: #7C3AED; border-color: #DDD6FE; }
.rm-tag-orange { background: #FFF7ED; color: #EA580C; border-color: #FED7AA; }

.rm-hero-stats {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.rm-hero-stat { text-align: center; }
.rm-hs-val {
  display: block;
  font-size: 26px;
  font-weight: 800;
  color: #2D7FC1;
  line-height: 1;
}
.rm-hs-lbl {
  display: block;
  font-size: 11px;
  color: #94A3B8;
  margin-top: 3px;
  font-weight: 500;
}
.rm-hero-stat-divider {
  width: 1px;
  height: 36px;
  background: #DBEAFE;
}

/* Toolbar: tabs + search */
.rm-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.rm-tabs-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.rm-search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #F8FAFC;
  border: 1px solid #E5E7EB;
  border-radius: 12px;
  padding: 7px 12px;
  min-width: 180px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.rm-search-box:focus-within {
  border-color: #93C5FD;
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
  background: #fff;
}
.rm-search-icon { font-size: 14px; flex-shrink: 0; }
.rm-search-input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 13px;
  color: #374151;
  width: 160px;
}
.rm-search-input::placeholder { color: #9CA3AF; }
.rm-search-clear {
  border: none; background: none; cursor: pointer;
  color: #9CA3AF; font-size: 13px; padding: 0;
  transition: color 0.15s;
}
.rm-search-clear:hover { color: #EF4444; }

/* ════════════════════════════════════════════════════════════
   ★ GIAO DIỆN ROADMAP TƯƠNG TÁC
   ════════════════════════════════════════════════════════════ */
#roadmap-container-wrapper {
    position: relative;
    width: 100%;
    height: 68vh;
    min-height: 480px;
    overflow: hidden;
    background: #fff;
    background-image:
      radial-gradient(circle, #E2E8F0 1px, transparent 1px);
    background-size: 28px 28px;
    border-radius: 20px;
    border: 1.5px solid #DBEAFE;
    box-shadow:
      0 0 0 4px rgba(59,130,246,0.06),
      0 16px 40px rgba(15, 23, 42, 0.09);
}

body.dark #roadmap-container-wrapper {
    background-color: var(--bg);
    background-image:
      radial-gradient(circle, rgba(51,65,85,0.7) 1px, transparent 1px);
    background-size: 28px 28px;
    border-color: rgba(59,130,246,0.25);
    box-shadow:
      0 0 0 4px rgba(59,130,246,0.04),
      0 16px 40px rgba(0, 0, 0, 0.45);
}

#roadmap-mermaid-wrap {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ── Tab "Cá nhân" — styles đã chuyển sang roadmap.css ── */
#roadmap-personal-view .rm-split { flex: 1; height: auto; min-height: 0; }

.rm-tab-personal {
    margin-left: 6px;
    border-left: 1px solid rgba(148,163,184,0.3);
    padding-left: 14px;
}

#roadmap-mermaid-wrap svg {
    max-width: none !important;
    width: 100% !important;
    height: 100% !important;
}

/* ── SVG nodes ── */
#roadmap-mermaid-wrap g.node { cursor: pointer; }

/* Text bên trong node: đậm hơn, monospace */
#roadmap-mermaid-wrap g.node .nodeLabel,
#roadmap-mermaid-wrap g.node span,
#roadmap-mermaid-wrap g.node p {
    font-family: 'Fira Code', 'Consolas', 'Cascadia Code', monospace !important;
    font-weight: 600 !important;
    font-size: 13px !important;
    letter-spacing: 0.2px;
}

/* Light & Dark mode: opacity đầy đủ — màu được set bởi JS inline style */
#roadmap-mermaid-wrap g.node rect,
#roadmap-mermaid-wrap g.node polygon,
#roadmap-mermaid-wrap g.node circle,
#roadmap-mermaid-wrap g.node ellipse {
    fill-opacity: 1 !important;
    stroke-opacity: 1 !important;
    fill: var(--rm-node-bg) !important;
    stroke: var(--rm-node-border) !important;
}
#roadmap-mermaid-wrap g.node text,
#roadmap-mermaid-wrap g.node tspan {
    fill: var(--rm-node-text) !important;
}
#roadmap-mermaid-wrap g.node .nodeLabel,
#roadmap-mermaid-wrap g.node .nodeLabel p,
#roadmap-mermaid-wrap g.node foreignObject div {
    color: var(--rm-node-text) !important;
}

/* Edge / connector lines: light mode — softer blue */
#roadmap-mermaid-wrap .edgePath path,
#roadmap-mermaid-wrap .flowchart-link {
    stroke: #60A5FA !important;
    stroke-width: 1.5px !important;
}
#roadmap-mermaid-wrap marker path,
#roadmap-mermaid-wrap marker polygon {
    fill: #60A5FA !important;
    stroke: #60A5FA !important;
}

/* Dark mode: edge lines */
body.dark #roadmap-mermaid-wrap .edgePath path,
body.dark #roadmap-mermaid-wrap .flowchart-link { stroke: #38BDF8 !important; }
body.dark #roadmap-mermaid-wrap marker path,
body.dark #roadmap-mermaid-wrap marker polygon   { fill: #38BDF8 !important; stroke: #38BDF8 !important; }
body.dark #roadmap-mermaid-wrap .edgeLabel span,
body.dark #roadmap-mermaid-wrap .edgeLabel p     { color: #94a3b8 !important; background: transparent !important; }
body.dark #roadmap-mermaid-wrap .svg-pan-zoom-control-background { fill: rgba(15,23,42,0.9) !important; }
body.dark #roadmap-mermaid-wrap .svg-pan-zoom-control            { fill: #94a3b8 !important; }

/* ── Loading spinner ── */
.rm-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.rm-loading-spinner {
  width: 40px; height: 40px;
  border: 3px solid #DBEAFE;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: rmSpin 0.8s linear infinite;
}
@keyframes rmSpin { to { transform: rotate(360deg); } }
.rm-loading-text {
  font-size: 14px;
  color: #94A3B8;
  font-weight: 500;
}


/* ── Hint bar ── */
.rm-hint-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 10px;
  padding: 8px 16px;
  background: #F8FAFC;
  border-radius: 12px;
  border: 1px solid #F1F5F9;
  flex-wrap: wrap;
}
.rm-hint-item { font-size: 12px; color: #94A3B8; }
.rm-hint-sep  { color: #CBD5E1; font-size: 12px; }
body.dark .rm-hint-bar { background: var(--bg); border-color: var(--card); }
body.dark .rm-hint-item { color: #475569; }
body.dark .rm-hint-sep  { color: var(--card-border); }

/* Khóa scroll nền khi panel đang mở (đặc biệt trên mobile) */
body.rm-sidebar-open { overflow: hidden; }

/* ── Sidebar Chi tiết Roadmap ── */
#sidebar-backdrop {
  position: fixed;
  top: 50px; right: 0; bottom: 0; left: 0;  /* né topbar 50px trên PC */
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0s linear 0.28s;
  z-index: 9998;
}
#sidebar-backdrop.open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.28s ease;
}

#sidebar-detail {
    position: fixed;
    top: 50px; right: -360px;   /* dưới topbar 50px, ẩn bên phải */
    width: 360px; max-width: 100vw; height: calc(100vh - 50px);
    background: #fff;
    box-shadow: -8px 0 40px rgba(15,23,42,0.12);
    transition: right 0.32s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.28s ease,
                transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    box-sizing: border-box;
    border-left: 1px solid #E5E7EB;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

body.dark #sidebar-detail { background: var(--card); border-color: var(--card-border); box-shadow: -8px 0 40px rgba(0,0,0,0.45); }

#sidebar-detail.open { right: 0; }

/* Header sticky chứa title + ✕ cùng hàng — số "1." "2." và nút ✕ luôn hiển thị khi cuộn */
.rm-sidebar-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: linear-gradient(135deg, #EFF6FF, #F0FDF4);
  border-bottom: 1px solid #DBEAFE;
  padding: max(16px, env(safe-area-inset-top, 0px)) 14px 14px;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(14px, env(safe-area-inset-right, 0px));
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
body.dark .rm-sidebar-header {
  background: linear-gradient(135deg, var(--bg), var(--card));
  border-bottom-color: var(--card-border);
}
.rm-sidebar-header #sidebar-title {
  font-size: 18px;
  font-weight: 800;
  color: #1E3A5F;
  margin: 0;
  padding: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
  line-height: 1.3;
  flex: 1;
  min-width: 0;
}
body.dark .rm-sidebar-header #sidebar-title { color: #38bdf8; }

/* Nút đóng ✕ — nằm cùng hàng với title (trong header), luôn hiển thị khi cuộn
   Desktop: 44×44 (chuẩn tap target + dễ bấm chuột)
   Mobile: 36×36 (override ở style.css media query) */
.rm-sidebar-close {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 2px solid #FCA5A5;
  background: #fff;
  color: #EF4444;
  cursor: pointer;
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  position: relative;
  z-index: 2;
}
.rm-sidebar-close:hover { background: #FEF2F2; border-color: #FCA5A5; transform: scale(1.05); }
.rm-sidebar-close:active { transform: scale(0.92); background: #FEE2E2; }
body.dark .rm-sidebar-close { background: var(--card); border-color: #7F1D1D; color: #FCA5A5; box-shadow: 0 4px 12px rgba(0,0,0,0.4); }
body.dark .rm-sidebar-close:hover { background: #7F1D1D; }

.rm-sidebar-divider {
  height: 1px;
  background: linear-gradient(90deg, #DBEAFE, transparent);
  margin: 12px 20px;
}
body.dark .rm-sidebar-divider { background: linear-gradient(90deg, var(--card-border), transparent); }

#sidebar-content {
  color: #4B5563;
  line-height: 1.7;
  font-size: 14px;
  padding: 0 20px 24px;
  flex: 1;
  word-wrap: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
}
#sidebar-content * { max-width: 100%; }
#sidebar-content ul, #sidebar-content ol { padding-left: 22px; margin: 8px 0; }
#sidebar-content li { margin-bottom: 6px; word-wrap: break-word; }
#sidebar-content p { margin: 8px 0; }
#sidebar-content h1, #sidebar-content h2, #sidebar-content h3 { margin: 12px 0 6px; word-wrap: break-word; }
#sidebar-content code { background: rgba(0,0,0,0.06); padding: 1px 6px; border-radius: 4px; font-size: 13px; word-break: break-all; }
#sidebar-content pre { overflow-x: auto; max-width: 100%; }
body.dark #sidebar-content { color: #CBD5E1; }
body.dark #sidebar-content code { background: rgba(255,255,255,0.08); }

.sidebar-list { padding-left: 20px; margin-top: 10px; }
.sidebar-list li { margin-bottom: 8px; }

/* ── Dark mode: filter panel ── */
body.dark .course-filter-panel {
  background: var(--card);
  border-color: var(--card-border);
}

body.dark .pill-btn {
  background: var(--card);
  border-color: var(--card-border);
  color: #94a3b8;
}

body.dark .pill-btn:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: var(--bg);
}

body.dark .pill-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

body.dark .active-filters { border-top-color: var(--card-border); }

body.dark .filter-chip {
  background: #1e3a5f;
  border-color: #2563eb;
  color: #93c5fd;
}

body.dark .filter-chip button {
  background: #2563eb;
  color: #fff;
}

/* ── Dark mode: hero + toolbar ── */
body.dark .rm-hero {
  background: linear-gradient(135deg, var(--bg) 0%, var(--card) 50%, #1a1338 100%);
  border-color: rgba(59,130,246,0.2);
}
body.dark .rm-hero-title { color: #E2E8F0; }
body.dark .rm-hero-sub   { color: #64748B; }
body.dark .rm-hero-stat-divider { background: var(--card-border); }
body.dark .rm-hs-val     { color: #38BDF8; }
body.dark .rm-hs-lbl     { color: #475569; }
body.dark .rm-tag-blue   { background: rgba(37,99,235,0.15); color: #60A5FA; border-color: rgba(37,99,235,0.3); }
body.dark .rm-tag-green  { background: rgba(22,163,74,0.12);  color: #4ADE80; border-color: rgba(22,163,74,0.3); }
body.dark .rm-tag-purple { background: rgba(124,58,237,0.12); color: #C4B5FD; border-color: rgba(124,58,237,0.3); }
body.dark .rm-tag-orange { background: rgba(234,88,12,0.12);  color: #FB923C; border-color: rgba(234,88,12,0.3); }
body.dark .rm-search-box {
  background: var(--card);
  border-color: var(--card-border);
}
body.dark .rm-search-box:focus-within {
  border-color: var(--accent);
  background: var(--bg);
}
body.dark .rm-search-input { color: #E2E8F0; }
body.dark .rm-search-input::placeholder { color: #475569; }

/* ════════════════════════════════════════════════════════════
   ★ CÁ NHÂN HÓA LỘ TRÌNH — Visual Editor
   ════════════════════════════════════════════════════════════ */

.rm-personal-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid #E5E7EB;
  background: linear-gradient(135deg, #F8FAFC, #EFF6FF);
  flex-shrink: 0;
}

.rm-personal-hd-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.rm-personal-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: #EFF6FF;
  border: 1px solid #DBEAFE;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.rm-personal-label {
  font-size: 15px;
  font-weight: 700;
  color: #1F2937;
  line-height: 1.2;
}
.rm-personal-sub {
  font-size: 12px;
  color: #94A3B8;
  margin-top: 2px;
}

.rm-personal-hd-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rm-arrow-sep {
  color: #9CA3AF;
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}

.rm-ai-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1.5px solid #E5E7EB;
  background: #F9FAFB;
  color: #6B7280;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.rm-ai-btn:hover {
  border-color: #8B5CF6;
  color: #7C3AED;
  background: #F5F3FF;
}

.rm-premium-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 8px;
  background: linear-gradient(135deg, #8B5CF6, #6D28D9);
  color: #fff;
  letter-spacing: 0.3px;
}

.rm-save-btn {
  padding: 8px 16px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, var(--accent), #2D7FC1);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 3px 10px rgba(59,130,246,0.3);
}
.rm-save-btn:hover { box-shadow: 0 5px 16px rgba(59,130,246,0.45); transform: translateY(-1px); }
.rm-save-btn:disabled { opacity: 0.7; transform: none; cursor: default; }

/* ── Visual toolbar ── */
.rmv-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: #F8FAFC;
  border-bottom: 1px solid #E5E7EB;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.rmv-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1.5px solid #E5E7EB;
  background: #fff;
  color: #374151;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  white-space: nowrap;
}
.rmv-btn:hover { background: #EFF6FF; border-color: #BFDBFE; color: #2563EB; }
.rmv-btn-connect.rmv-active { background: #F0FDF4; border-color: #4ADE80; color: #16A34A; }
.rmv-btn-clear:hover { background: #FFF1F2; border-color: #FCA5A5; color: #DC2626; }
.rmv-hint {
  flex: 1;
  font-size: 12px;
  color: #9CA3AF;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Zoom controls ── */
.rmv-zoom-wrap {
  display: flex;
  align-items: center;
  gap: 3px;
  border-left: 1px solid #E5E7EB;
  padding-left: 10px;
  margin-left: 2px;
  flex-shrink: 0;
}
.rmv-zoom-btn {
  width: 28px; height: 28px;
  border-radius: 7px;
  border: 1.5px solid #E5E7EB;
  background: #fff;
  color: #374151;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
  line-height: 1;
}
.rmv-zoom-btn:hover { background: #EFF6FF; border-color: #BFDBFE; color: #2563EB; }
.rmv-zoom-reset { font-size: 14px; }
.rmv-zoom-label {
  font-size: 12px;
  font-weight: 700;
  color: #6B7280;
  min-width: 38px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
body.dark .rmv-zoom-wrap     { border-color: var(--card); }
body.dark .rmv-zoom-btn      { background: var(--card); border-color: var(--card-border); color: #94A3B8; }
body.dark .rmv-zoom-btn:hover { background: var(--bg); border-color: var(--accent); color: #38BDF8; }
body.dark .rmv-zoom-label    { color: #64748B; }

/* ── Canvas: layout chính đã chuyển sang roadmap.css ── */

/* ── Nodes (light mode defaults — pastel) ── */
.rm-vnode {
  position: absolute;
  transform: translate(-50%, -50%);
  min-width: 110px;
  max-width: 180px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 2px solid #93C5FD;
  background: #EFF6FF;
  color: #1E40AF;
  font-size: 13px;
  font-weight: 600;
  font-family: 'Fira Code', 'Consolas', monospace;
  cursor: grab;
  user-select: none;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.10);
  transition: box-shadow 0.15s, border-color 0.15s;
  word-break: break-word;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.rm-vnode:active { cursor: grabbing; }
.rm-vnode.rmv-selected { box-shadow: 0 0 0 3px var(--accent), 0 4px 16px rgba(59,130,246,0.30); }
.rm-vnode.rmv-src      { box-shadow: 0 0 0 3px #22C55E, 0 4px 18px rgba(34,197,94,0.35); border-color: #22C55E !important; }
.rm-vnode.rmv-tgt      { cursor: crosshair; }
.rm-vnode.rmv-tgt:hover { box-shadow: 0 0 0 3px #60A5FA, 0 4px 18px rgba(96,165,250,0.35); }

/* Light mode pastel palette */
.rm-vnode[data-color="0"] { background:#FFFBEB; border-color:#F59E0B; color:#92400E; }
.rm-vnode[data-color="1"] { background:#EFF6FF; border-color:#60A5FA; color:#1D4ED8; }
.rm-vnode[data-color="2"] { background:#F0FDF4; border-color:#34D399; color:#065F46; }
.rm-vnode[data-color="3"] { background:#F5F3FF; border-color:#A78BFA; color:#5B21B6; }
.rm-vnode[data-color="4"] { background:#FDF2F8; border-color:#F472B6; color:#9D174D; }
.rm-vnode[data-color="5"] { background:#FFF7ED; border-color:#FB923C; color:#9A3412; }

.rmv-label { flex: 1; line-height: 1.35; }

.rmv-del {
  display: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,0.10);
  color: #6B7280;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  line-height: 1;
  flex-shrink: 0;
  transition: background 0.15s;
}
.rm-vnode:hover .rmv-del { display: flex; align-items: center; justify-content: center; }
.rmv-del:hover { background: #EF4444; color: #fff; }

.rmv-input {
  background: transparent;
  border: none;
  outline: none;
  color: inherit;
  font: inherit;
  text-align: center;
  width: 100%;
  min-width: 80px;
}

/* ── Toast ── */
.rm-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #1F2937;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 9999;
  white-space: nowrap;
}
.rm-toast-show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── Dark mode ── */
body.dark #roadmap-personal-view { background: var(--bg); }
body.dark .rm-personal-hd     { background: linear-gradient(135deg, var(--bg), var(--card)); border-color: var(--card-border); }
body.dark .rm-personal-icon   { background: var(--card); border-color: var(--card-border); }
body.dark .rm-personal-label  { color: #F1F5F9; }
body.dark .rm-personal-sub    { color: #475569; }
body.dark .rm-ai-btn          { background: var(--card); border-color: var(--card-border); color: #94A3B8; }
body.dark .rm-ai-btn:hover    { border-color: #8B5CF6; color: #A78BFA; background: #2D1B69; }
body.dark .rmv-toolbar         { background: var(--bg); border-color: var(--card); }
body.dark .rmv-btn             { background: var(--card); border-color: var(--card-border); color: #94A3B8; }
body.dark .rmv-btn:hover       { background: var(--bg); border-color: var(--accent); color: #38BDF8; }
body.dark .rmv-btn-connect.rmv-active { background: rgba(74,222,128,0.1); border-color: #4ADE80; color: #4ADE80; }
body.dark .rmv-hint            { color: var(--card-border); }
body.dark #rm-visual-canvas    { background:#0A101F; background-image:radial-gradient(circle,var(--card) 1px,transparent 1px); background-size:24px 24px; }

/* Dark mode: restore neon node palette */
body.dark .rm-vnode { box-shadow: 0 4px 16px rgba(0,0,0,0.35); }
body.dark .rm-vnode.rmv-selected { box-shadow: 0 0 0 3px var(--accent), 0 4px 20px rgba(59,130,246,0.45); }
body.dark .rm-vnode.rmv-src      { box-shadow: 0 0 0 3px #4ADE80, 0 4px 24px rgba(74,222,128,0.55); border-color: #4ADE80 !important; }
body.dark .rm-vnode.rmv-tgt:hover { box-shadow: 0 0 0 3px #38BDF8, 0 4px 24px rgba(56,189,248,0.55); }
body.dark .rm-vnode[data-color="0"] { background:#1C1500; border-color:#FBBF24; color:#FEF08A; }
body.dark .rm-vnode[data-color="1"] { background:#050E1F; border-color:#38BDF8; color:#BAE6FD; }
body.dark .rm-vnode[data-color="2"] { background:#011C0E; border-color:#4ADE80; color:#BBF7D0; }
body.dark .rm-vnode[data-color="3"] { background:#0F0520; border-color:#A78BFA; color:#DDD6FE; }
body.dark .rm-vnode[data-color="4"] { background:#1A0520; border-color:#F472B6; color:#FBCFE8; }
body.dark .rm-vnode[data-color="5"] { background:#1A0A00; border-color:#FB923C; color:#FED7AA; }
body.dark .rmv-del { background: rgba(255,255,255,0.15); color: #fff; }
body.dark .rmv-del:hover { background: #EF4444; }


/* ════════════════════════════════════════════════════════════
   ★ DIỄN ĐÀN CỘNG ĐỒNG
   ════════════════════════════════════════════════════════════ */

.forum-new-btn {
  padding: 10px 20px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), #2D7FC1);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(74, 158, 224, 0.35);
  transition: box-shadow 0.2s, transform 0.15s;
  flex-shrink: 0;
}
.forum-new-btn:hover { box-shadow: 0 6px 18px rgba(59,130,246,0.5); transform: translateY(-1px); }
.forum-new-btn:active { transform: translateY(1px); }

/* Loading state */
.forum-loading {
  text-align: center;
  padding: 40px 20px;
  color: #6B7280;
  font-size: 14px;
}
.forum-loading::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid #E5E7EB;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: forumSpin 0.8s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}
@keyframes forumSpin {
  to { transform: rotate(360deg); }
}

/* Post cards */
.forum-post-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 14px 18px;
  margin-bottom: 10px;
  box-shadow: none;
  transition: border-color 0.2s;
}
.forum-post-card:hover {
  border-color: rgba(255,255,255,0.11);
}

.fpc-top {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 9px;
}

.fpc-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.fpc-meta {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.fpc-author {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--t1);
}

.fpc-time {
  font-size: 0.72rem;
  color: var(--t3);
}

.fpc-cat-tag {
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  flex-shrink: 0;
}

.fpc-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--t1);
  margin-bottom: 5px;
  line-height: 1.4;
}

.fpc-excerpt {
  font-size: 0.78rem;
  color: var(--t2);
  line-height: 1.55;
  margin-bottom: 12px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.fpc-actions {
  display: flex;
  align-items: center;
  gap: 5px;
  padding-top: 0;
  border-top: none;
}
.fpc-share-btn {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--t3);
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.fpc-share-btn:hover { background: var(--bg); color: var(--t1); border-color: rgba(255,255,255,0.12); }
.fpc-react-count { opacity: 0.7; font-weight: 400; margin-left: 2px; }

/* Emoji react của CHÍNH MÌNH trên nút bài viết (👍/❤️/😂/😮/😢/😡).
   line-height 1 để emoji không đội cao nút so với 2 nút SVG bên cạnh. */
.fpc-react-emoji { font-size: 14px; line-height: 1; }

.fpc-like-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1.5px solid #E5E7EB;
  background: #F9FAFB;
  color: #6B7280;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.fpc-like-btn:hover { border-color: #FCA5A5; background: #FFF1F2; color: #EF4444; }
.fpc-like-btn.liked { border-color: #FCA5A5; background: #FFF1F2; color: #EF4444; }

.fpc-comment-count {
  font-size: 13px;
  color: #9CA3AF;
}

/* ── Modal tạo bài ── */
.forum-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}
.forum-modal-overlay.active { opacity: 1; visibility: visible; }

.forum-modal-card {
  background: #fff;
  border-radius: 24px;
  width: 90%;
  max-width: 560px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,0.2);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.forum-modal-overlay.active .forum-modal-card { transform: scale(1) translateY(0); }

.forum-modal-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid #F3F4F6;
  flex-shrink: 0;
}

.forum-modal-title {
  font-size: 17px;
  font-weight: 800;
  color: #1F2937;
}

.forum-modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: #F3F4F6;
  color: #6B7280;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
.forum-modal-close:hover { background: #FEE2E2; color: #EF4444; }

.forum-modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.forum-field {
  margin-bottom: 18px;
}

.forum-field-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: #374151;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.forum-cat-picker {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.forum-cat-pick {
  padding: 8px 16px;
  border-radius: 10px;
  border: 1.5px solid #E5E7EB;
  background: #F9FAFB;
  color: #6B7280;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.forum-cat-pick:hover { border-color: var(--accent); color: #2D7FC1; background: #EFF6FF; }
.forum-cat-pick.active { border-color: var(--accent); background: var(--accent); color: #fff; }

.forum-input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #E5E7EB;
  border-radius: 12px;
  font-size: 14px;
  color: #111827;
  background: #fff;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.forum-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.12); }

.forum-textarea {
  width: 100%;
  min-height: 140px;
  padding: 12px 16px;
  border: 1.5px solid #E5E7EB;
  border-radius: 12px;
  font-size: 14px;
  color: #111827;
  background: #fff;
  outline: none;
  box-sizing: border-box;
  resize: vertical;
  line-height: 1.6;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}
.forum-textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.12); }

.forum-char-count {
  font-size: 11px;
  color: #9CA3AF;
  text-align: right;
  margin-top: 4px;
}

.forum-modal-ft {
  display: flex;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid #F3F4F6;
  flex-shrink: 0;
}

.forum-modal-cancel {
  flex: 1;
  padding: 13px;
  border-radius: 12px;
  border: 2px solid #E5E7EB;
  background: #fff;
  color: #374151;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.forum-modal-cancel:hover { background: #F9FAFB; border-color: #D1D5DB; }

.forum-modal-submit {
  flex: 2;
  padding: 13px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), #2D7FC1);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(59,130,246,0.35);
  transition: box-shadow 0.2s, transform 0.15s;
}
.forum-modal-submit:hover { box-shadow: 0 6px 20px rgba(59,130,246,0.5); transform: translateY(-1px); }
.forum-modal-submit:active { transform: translateY(1px); }

/* ── Dark mode — Forum ── */
body.dark .forum-post-card   { background: var(--card); border-color: var(--card-border); }
body.dark .forum-post-card:hover { border-color: var(--accent); }
body.dark .fpc-avatar        { background: var(--bg); }
body.dark .fpc-author        { color: #F1F5F9; }
body.dark .fpc-title         { color: #E2E8F0; }
body.dark .fpc-excerpt       { color: #94A3B8; }
body.dark .fpc-actions       { border-top-color: var(--card-border); }
body.dark .fpc-like-btn      { background: var(--bg); border-color: var(--card-border); color: #94A3B8; }
body.dark .fpc-like-btn:hover,
body.dark .fpc-like-btn.liked { border-color: #F87171; background: #2D1111; color: #F87171; }
body.dark .fpc-comment-count { color: #64748B; }
body.dark .forum-modal-card  { background: var(--card); }
body.dark .forum-modal-hd    { border-color: var(--card-border); }
body.dark .forum-modal-title { color: #F1F5F9; }
body.dark .forum-modal-close { background: var(--card-border); color: #94A3B8; }
body.dark .forum-modal-close:hover { background: #451A1A; color: #F87171; }
body.dark .forum-modal-body  { }
body.dark .forum-field-label { color: #CBD5E1; }
body.dark .forum-cat-pick    { background: var(--bg); border-color: var(--card-border); color: #94A3B8; }
body.dark .forum-cat-pick:hover { border-color: var(--accent); color: var(--accent-light); background: var(--card); }
body.dark .forum-cat-pick.active { background: var(--accent); border-color: var(--accent); color: #fff; }
body.dark .forum-input       { background: var(--bg); border-color: var(--card-border); color: #E2E8F0; }
body.dark .forum-input:focus { border-color: var(--accent); }
body.dark .forum-textarea    { background: var(--bg); border-color: var(--card-border); color: #E2E8F0; }
body.dark .forum-textarea:focus { border-color: var(--accent); }
body.dark .forum-modal-ft    { border-top-color: var(--card-border); }
body.dark .forum-modal-cancel { background: var(--card); border-color: var(--card-border); color: #CBD5E1; }
body.dark .forum-modal-cancel:hover { background: var(--card-border); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .forum-modal-card { max-height: 95vh; }
}

/* ═══════════════════════════════════════
   FORUM — Create Box (Facebook-style)
═══════════════════════════════════════ */
.forum-create-box {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 14px 16px;
  margin-bottom: 14px;
}
.forum-create-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}
.fcb-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.fcb-textarea {
  flex: 1;
  min-height: 62px;
  padding: 9px 12px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--t1);
  font-size: 0.8rem;
  font-family: inherit;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s;
}
.fcb-textarea:focus { border-color: var(--blue); }
.fcb-textarea::placeholder { color: var(--t3); }
.fcb-bottom-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.fcb-type-picker { display: flex; gap: 6px; flex-wrap: wrap; }
.fcb-type-btn {
  padding: 5px 11px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--t3);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.fcb-type-btn:hover { border-color: rgba(255,255,255,0.16); color: var(--t2); }
.fcb-type-btn.active { background: rgba(96,165,250,0.12); border-color: rgba(96,165,250,0.4); color: var(--blue-light); }
.fcb-submit-btn {
  padding: 8px 20px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: #fff;
  transition: opacity 0.2s;
}
.fcb-submit-btn:disabled { background: rgba(255,255,255,0.05); color: var(--t3); cursor: not-allowed; }
.fcb-submit-btn:not(:disabled):hover { opacity: 0.82; }

/* ═══════════════════════════════════════
   FORUM — Reaction picker
═══════════════════════════════════════ */
.fpc-react-wrap {
  position: relative;
  display: inline-flex;
}
.fpc-react-wrap::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: -12px;
  right: -12px;
  height: 54px;
}
.fpc-react-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--t3);
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}
.fpc-react-btn:hover { background: var(--bg); color: var(--t1); border-color: rgba(255,255,255,0.12); }
.fpc-react-btn.liked { background: rgba(59,130,246,0.1); border-color: rgba(59,130,246,0.35); color: var(--blue-light); }
.fpc-react-btn.reacted-like  { border-color: #93C5FD; background: #DBEAFE; color: #1D4ED8; }
.fpc-react-btn.reacted-love  { border-color: #FCA5A5; background: #FEE2E2; color: #DC2626; }
.fpc-react-btn.reacted-haha  { border-color: #FDE68A; background: #FEF9C3; color: #CA8A04; }
.fpc-react-btn.reacted-wow   { border-color: #FDE68A; background: #FEF9C3; color: #CA8A04; }
.fpc-react-btn.reacted-sad   { border-color: #BAE6FD; background: #E0F2FE; color: #0369A1; }
.fpc-react-btn.reacted-angry { border-color: #FCA5A5; background: #FEE2E2; color: #DC2626; }

.reaction-picker {
  position: absolute;
  bottom: 100%;
  left: 0;
  display: flex;
  gap: 2px;
  background: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.14), 0 0 0 1px rgba(0,0,0,0.05);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.85);
  transition: opacity 0.16s, visibility 0.16s, transform 0.2s cubic-bezier(0.34,1.56,0.64,1);
  z-index: 60;
  pointer-events: none;
  white-space: nowrap;
}
.fpc-react-wrap:hover .reaction-picker {
  opacity: 1;
  visibility: visible;
  transform: translateY(-6px) scale(1);
  pointer-events: auto;
}
.reaction-item {
  font-size: 26px;
  cursor: pointer;
  transition: transform 0.14s;
  line-height: 1;
  padding: 2px 4px;
  display: inline-block;
}
.reaction-item:hover { transform: scale(1.45) translateY(-5px); }

/* ═══════════════════════════════════════
   FORUM — Media upload in modal
═══════════════════════════════════════ */
.forum-media-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.forum-media-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 10px;
  border: 1.5px solid #E5E7EB;
  background: #F9FAFB;
  color: #6B7280;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.forum-media-btn:hover { border-color: var(--accent); background: #EFF6FF; color: #2D7FC1; }
.forum-media-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.forum-media-thumb {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 10px;
  overflow: hidden;
  border: 1.5px solid #E5E7EB;
  background: #F3F4F6;
}
.forum-media-thumb img,
.forum-media-thumb video { width: 100%; height: 100%; object-fit: cover; }
.forum-thumb-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0,0,0,0.58);
  color: #fff;
  border: none;
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.forum-thumb-remove:hover { background: rgba(220,38,38,0.85); }

/* ── Dark mode — new forum elements ── */
body.dark .forum-create-box  { background: var(--card); border-color: var(--card-border); }
body.dark .fcb-input-fake    { background: var(--bg); border-color: var(--card-border); color: #475569; }
body.dark .fcb-input-fake:hover { background: var(--card); border-color: #475569; color: #64748B; }
body.dark .fcb-divider       { background: var(--card-border); }
body.dark .fcb-action-btn    { color: #94A3B8; }
body.dark .fcb-action-btn:hover { background: var(--card-border); color: #E2E8F0; }
body.dark .reaction-picker   { background: var(--card); box-shadow: 0 4px 24px rgba(0,0,0,0.45), 0 0 0 1px rgba(255,255,255,0.06); }
body.dark .fpc-react-btn     { background: var(--bg); border-color: var(--card-border); color: #94A3B8; }
body.dark .fpc-react-btn:hover { background: #0C2340; border-color: #3B82F6; color: #60A5FA; }
body.dark .fpc-react-btn.reacted-like  { background: #1E3A5F; border-color: #3B82F6; color: #60A5FA; }
body.dark .fpc-react-btn.reacted-love  { background: #5C1E1E; border-color: #EF4444; color: #F87171; }
body.dark .fpc-react-btn.reacted-haha  { background: #5C4A1E; border-color: #EAB308; color: #FACC15; }
body.dark .fpc-react-btn.reacted-wow   { background: #5C4A1E; border-color: #EAB308; color: #FACC15; }
body.dark .fpc-react-btn.reacted-sad   { background: #1E3A5F; border-color: #3B82F6; color: #60A5FA; }
body.dark .fpc-react-btn.reacted-angry { background: #5C1E1E; border-color: #EF4444; color: #F87171; }
body.dark .forum-media-btn   { background: var(--bg); border-color: var(--card-border); color: #94A3B8; }
body.dark .forum-media-btn:hover { border-color: var(--accent); background: var(--card); color: var(--accent-light); }
body.dark .forum-media-thumb { border-color: var(--card-border); background: var(--bg); }

/* ── Post media grid ── */
.fpc-media-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
  border-radius: 12px;
  overflow: hidden;
}
.fpc-media-item {
  width: calc(50% - 3px);
  max-height: 200px;
  object-fit: cover;
  border-radius: 10px;
  display: block;
}
.fpc-media-row .fpc-media-item:only-child { width: 100%; max-height: 300px; }

.fpc-react-summary {
  font-size: 13px;
  color: #9CA3AF;
  margin-left: 2px;
}
body.dark .fpc-react-summary { color: #64748B; }

/* ════════════════════════════════════════════════════════════
   ★ FORUM — Comment Section
════════════════════════════════════════════════════════════ */

.fpc-comment-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.74rem;
  color: var(--t3);
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 7px;
  transition: color 0.15s, background 0.15s;
  font-weight: 600;
}
.fpc-comment-btn:hover { color: var(--t1); background: var(--bg); border-color: rgba(255,255,255,0.12); }
.fpc-comment-btn.active { color: var(--blue-light); }

.fpc-comments {
  display: none;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1.5px solid #F3F4F6;
}
.fpc-comments.open { display: block; }

/* — Comment item — */
.fpc-cmt-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.fpc-cmt-avatar-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 34px;
}

.fpc-cmt-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #EFF6FF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}
.fpc-cmt-me { background: #ECFDF5; }

.fpc-cmt-vline {
  width: 2px;
  flex: 1;
  min-height: 16px;
  background: #E5E7EB;
  border-radius: 1px;
  margin-top: 4px;
}

.fpc-cmt-body {
  flex: 1;
  padding-bottom: 14px;
  min-width: 0;
}

.fpc-cmt-bubble {
  background: #F3F4F6;
  border-radius: 14px;
  padding: 9px 13px;
  display: inline-block;
  max-width: 100%;
}

.fpc-cmt-author {
  font-size: 12px;
  font-weight: 700;
  color: #111827;
  display: block;
  margin-bottom: 3px;
}

.fpc-cmt-text {
  font-size: 13px;
  color: #374151;
  line-height: 1.55;
  margin: 0;
  word-break: break-word;
}

.fpc-cmt-time {
  font-size: 11px;
  color: #9CA3AF;
  margin-top: 5px;
  display: block;
  padding-left: 4px;
}

.fpc-cmt-empty {
  text-align: center;
  font-size: 13px;
  color: #9CA3AF;
  padding: 10px 0 16px;
}

/* — Input row — */
.fpc-cmt-input-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 2px;
}

.fpc-cmt-compose {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  background: #F3F4F6;
  border-radius: 22px;
  padding: 6px 6px 6px 14px;
  transition: background 0.15s;
}
.fpc-cmt-compose:focus-within { background: #E8F0FE; }

.fpc-cmt-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13px;
  color: #374151;
  outline: none;
  min-width: 0;
}
.fpc-cmt-input::placeholder { color: #9CA3AF; }

.fpc-cmt-send {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s, transform 0.1s;
}
.fpc-cmt-send:hover { background: #2D7FC1; transform: scale(1.08); }

/* — Comment sort bar — */
.fpc-cmt-sort-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.fpc-cmt-sort-label {
  font-size: 13px;
  font-weight: 700;
  color: #374151;
}

.fpc-cmt-sort-btns {
  display: flex;
  gap: 4px;
}

.fpc-cmt-sort-btn {
  font-size: 12px;
  font-weight: 500;
  color: #9CA3AF;
  background: none;
  border: 1.5px solid #E5E7EB;
  border-radius: 999px;
  padding: 3px 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.fpc-cmt-sort-btn:hover { color: var(--accent); border-color: #BFDBFE; background: #EFF6FF; }
.fpc-cmt-sort-btn.active { color: #1D4ED8; border-color: #93C5FD; background: #DBEAFE; font-weight: 600; }

body.dark .fpc-cmt-sort-label { color: #CBD5E1; }
body.dark .fpc-cmt-sort-btn   { color: #64748B; border-color: var(--card-border); }
body.dark .fpc-cmt-sort-btn:hover  { color: #60A5FA; border-color: #3B82F6; background: #0C2340; }
body.dark .fpc-cmt-sort-btn.active { color: #93C5FD; border-color: #3B82F6; background: #0C2340; }

/* — Comment action row — */
.fpc-cmt-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 5px;
  flex-wrap: wrap;
}

.fpc-cmt-time-inline {
  font-size: 11px;
  color: #9CA3AF;
}

.fpc-cmt-act-btn {
  font-size: 12px;
  font-weight: 600;
  color: #9CA3AF;
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 5px;
  border-radius: 4px;
  line-height: 1.4;
  transition: color 0.15s, background 0.15s, transform 0.18s cubic-bezier(0.34,1.56,0.64,1);
}
.fpc-cmt-act-btn:hover { color: var(--accent); }
.fpc-cmt-reply-btn:hover { color: #10B981; }
/* Comment reaction color states */
.fpc-cmt-like-btn.cmt-reacted-like  { color: #3B82F6; }
.fpc-cmt-like-btn.cmt-reacted-love  { color: #EF4444; }
.fpc-cmt-like-btn.cmt-reacted-haha  { color: #EAB308; }
.fpc-cmt-like-btn.cmt-reacted-wow   { color: #EAB308; }
.fpc-cmt-like-btn.cmt-reacted-sad   { color: #3B82F6; }
.fpc-cmt-like-btn.cmt-reacted-angry { color: #EF4444; }
/* New comment fade-in animation */
.fpc-cmt-item { animation: cmtFadeIn 0.3s ease-out; }
@keyframes cmtFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* — Comment reaction wrap — */
.fpc-cmt-react-wrap {
  position: relative;
  display: inline-flex;
}
.fpc-cmt-react-wrap::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: -8px;
  right: -8px;
  height: 38px;
}

.fpc-cmt-reaction-picker {
  position: absolute;
  bottom: 100%;
  left: 0;
  display: flex;
  gap: 1px;
  background: #fff;
  border-radius: 999px;
  padding: 4px 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.13), 0 0 0 1px rgba(0,0,0,0.05);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.85);
  transition: opacity 0.16s, visibility 0.16s, transform 0.2s cubic-bezier(0.34,1.56,0.64,1);
  z-index: 60;
  pointer-events: none;
  white-space: nowrap;
}
.fpc-cmt-react-wrap:hover .fpc-cmt-reaction-picker {
  opacity: 1;
  visibility: visible;
  transform: translateY(-4px) scale(1);
  pointer-events: auto;
}

.fpc-cmt-react-item {
  font-size: 20px;
  cursor: pointer;
  transition: transform 0.14s;
  line-height: 1;
  padding: 2px 3px;
  display: inline-block;
}
.fpc-cmt-react-item:hover { transform: scale(1.45) translateY(-4px); }

.fpc-cmt-like-btn { color: #9CA3AF; }
.cmt-reacted-like  { color: #1D4ED8 !important; }
.cmt-reacted-love  { color: #DC2626 !important; }
.cmt-reacted-haha  { color: #CA8A04 !important; }
.cmt-reacted-wow   { color: #CA8A04 !important; }
.cmt-reacted-sad   { color: #0369A1 !important; }
.cmt-reacted-angry { color: #DC2626 !important; }

.fpc-cmt-react-summary {
  font-size: 12px;
  color: #9CA3AF;
}

/* — Replies — */
.fpc-replies-list {
  margin-top: 8px;
}

.fpc-reply-item {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-bottom: 8px;
}

.fpc-reply-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #EFF6FF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.fpc-reply-body {
  flex: 1;
  min-width: 0;
}

.fpc-reply-to {
  color: var(--accent);
  font-weight: 700;
  font-size: 12px;
}

.fpc-reply-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 8px;
}

/* — Dark mode — */
body.dark .fpc-comments    { border-top-color: var(--card-border); }
body.dark .fpc-cmt-bubble  { background: var(--bg); }
body.dark .fpc-cmt-author  { color: #E2E8F0; }
body.dark .fpc-cmt-text    { color: #CBD5E1; }
body.dark .fpc-cmt-vline   { background: var(--card-border); }
body.dark .fpc-cmt-avatar  { background: #1E3A5F; }
body.dark .fpc-cmt-me      { background: #0F2A1A; }
body.dark .fpc-cmt-compose { background: var(--bg); }
body.dark .fpc-cmt-compose:focus-within { background: #0C2340; }
body.dark .fpc-cmt-input   { color: #E2E8F0; }
body.dark .fpc-comment-btn { color: #64748B; }
body.dark .fpc-comment-btn:hover { color: #60A5FA; background: #1E3A5F; }
body.dark .fpc-comment-btn.active { color: #60A5FA; }
body.dark .fpc-cmt-reaction-picker { background: var(--card); box-shadow: 0 4px 20px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.06); }
body.dark .fpc-cmt-act-btn { color: #64748B; }
body.dark .fpc-cmt-act-btn:hover { color: #60A5FA; }
body.dark .fpc-cmt-reply-btn:hover { color: #34D399; }
body.dark .fpc-reply-avatar { background: #1E3A5F; }
body.dark .fpc-reply-to    { color: #60A5FA; }
body.dark .fpc-cmt-react-summary { color: #64748B; }

/* ════════════════════════════════════════════════════════════
   ★ MODAL HỦY ĐĂNG KÝ KHÓA HỌC
   ════════════════════════════════════════════════════════════ */
.un-overlay {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(0,0,0,0.45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.un-overlay.active { opacity: 1; visibility: visible; }
.un-card {
  background: #fff; border-radius: 28px;
  padding: 40px 36px; max-width: 420px; width: 90%;
  text-align: center;
  box-shadow: 0 30px 70px rgba(0,0,0,0.18);
  transform: scale(0.88) translateY(24px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.un-overlay.active .un-card { transform: scale(1) translateY(0); }
.un-icon-wrap {
  width: 76px; height: 76px; border-radius: 50%;
  background: #FEF2F2; border: 4px solid #FECACA;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 22px; font-size: 34px;
}
.un-title { font-size: 22px; font-weight: 800; color: #111827; margin: 0 0 8px; }
.un-sub   { font-size: 14px; color: #6B7280; margin: 0 0 6px; }
.un-course-name {
  font-size: 18px; font-weight: 800; color: #EF4444;
  margin: 0 0 20px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.un-warning {
  background: #FFF5F5; border: 1px solid #FED7D7; border-radius: 14px;
  padding: 14px 16px; margin-bottom: 28px;
  display: flex; align-items: flex-start; gap: 10px; text-align: left;
}
.un-warning span { font-size: 20px; flex-shrink: 0; }
.un-warning p  { font-size: 13px; color: #df1818ce; font-weight: 500; margin: 0; line-height: 1.5; }
.un-actions { display: flex; gap: 12px; }
.un-btn-cancel {
  flex: 1; padding: 15px; border-radius: 14px;
  border: 2px solid #E5E7EB; background: white;
  color: #374151; font-weight: 700; font-size: 14px; cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.un-btn-cancel:hover { background: #F9FAFB; border-color: #D1D5DB; }
.un-btn-confirm {
  flex: 1; padding: 15px; border-radius: 14px;
  border: none; background: linear-gradient(135deg, #EF4444, #DC2626);
  color: white; font-weight: 700; font-size: 14px; cursor: pointer;
  box-shadow: 0 4px 14px rgba(239,68,68,0.35);
  transition: box-shadow 0.2s, transform 0.15s;
}
.un-btn-confirm:hover  { box-shadow: 0 6px 20px rgba(239,68,68,0.5); transform: translateY(-1px); }
.un-btn-confirm:active { transform: translateY(1px); }

/* ════════════════════════════════════════════════════════════
   ★ POPUP NHẮC GIỮ CHUỖI HỌC
   ════════════════════════════════════════════════════════════ */
.streak-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.streak-overlay.active { opacity: 1; visibility: visible; }
.streak-card {
  background: #fff;
  border-radius: 28px;
  padding: 44px 40px 36px;
  max-width: 400px; width: 90%;
  text-align: center;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.22);
  transform: scale(0.82) translateY(32px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}
.streak-overlay.active .streak-card { transform: scale(1) translateY(0); }
.streak-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 5px;
  background: linear-gradient(90deg, #F59E0B, #EF4444, #F97316);
  background-size: 200% 100%;
  animation: streak-shimmer 2.5s linear infinite;
}
@keyframes streak-shimmer {
  0%   { background-position: 0% 0%; }
  100% { background-position: 200% 0%; }
}
.streak-fire-wrap {
  position: relative;
  width: 90px; height: 90px;
  margin: 0 auto 20px;
}
.streak-fire-bg {
  width: 90px; height: 90px; border-radius: 50%;
  background: linear-gradient(135deg, #FEF3C7, #FDE68A);
  border: 4px solid #FCD34D;
  display: flex; align-items: center; justify-content: center;
  font-size: 42px;
  animation: streak-pulse 1.8s ease-in-out infinite;
}
@keyframes streak-pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(245,158,11,0.5); }
  50%       { transform: scale(1.06); box-shadow: 0 0 0 10px rgba(245,158,11,0); }
}
.streak-ring {
  position: absolute; inset: -6px; border-radius: 50%;
  border: 3px dashed #FBBF24;
  animation: streak-spin 8s linear infinite;
}
@keyframes streak-spin { to { transform: rotate(360deg); } }
.streak-title {
  font-size: 22px; font-weight: 800; color: #111827;
  margin: 0 0 10px; line-height: 1.3;
}
.streak-sub {
  font-size: 14px; color: #6B7280;
  margin: 0 0 28px; line-height: 1.6;
}
.streak-btn-go {
  display: block; width: 100%;
  padding: 16px 24px;
  border-radius: 16px; border: none;
  background: linear-gradient(135deg, #F59E0B, #EF4444);
  color: #fff; font-size: 16px; font-weight: 800;
  cursor: pointer; letter-spacing: 0.3px;
  box-shadow: 0 6px 20px rgba(245,158,11,0.45);
  transition: box-shadow 0.25s, transform 0.15s;
}
.streak-btn-go:hover  { box-shadow: 0 8px 28px rgba(245,158,11,0.6); transform: translateY(-2px); }
.streak-btn-go:active { transform: translateY(0); }
.streak-btn-skip {
  display: block; width: 100%; margin-top: 12px;
  padding: 10px; border: none; background: none;
  font-size: 13px; color: #9CA3AF; cursor: pointer;
  transition: color 0.2s;
}
.streak-btn-skip:hover { color: #6B7280; }

body.dark .streak-card  { background: #1F2937; }
body.dark .streak-title { color: #F9FAFB; }
body.dark .streak-sub   { color: #9CA3AF; }
body.dark .streak-btn-skip { color: #6B7280; }
body.dark .streak-btn-skip:hover { color: #9CA3AF; }

/* ════════════════════════════════════════════════════════════
   ★ DASHBOARD REDESIGN — 2-COL LAYOUT, ROADMAP Ở CỘT PHẢI
   ════════════════════════════════════════════════════════════ */

/* ── Bỏ giới hạn max-width: 1200px áp dụng cho .page từ style.css
   để dashboard fill toàn bộ viewport ── */
.page#page-dashboard {
  max-width: none !important;
  margin-inline: 0 !important;
  padding: 18px 28px !important;
  width: 100% !important;
  box-sizing: border-box;
}

/* ── Hero banner (Dashboard.tsx) ── */
.dash-hero {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  padding: 14px 22px;
  margin-bottom: 14px;
  border: 1px solid rgba(59,130,246,0.15);
  background: linear-gradient(120deg, #1E3A8A 0%, #1E1B4B 45%, #4C1D95 75%, #7C2D12 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.dash-hero-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 50%, rgba(124,45,18,0.35) 0%, transparent 55%);
  pointer-events: none;
}
.dash-hero-text { position: relative; min-width: 0; }
.dash-hero-greeting { display: block; font-size: 0.74rem; color: rgba(255,255,255,0.5); }
.dash-hero-text h2 { font-size: 1.15rem; font-weight: 800; letter-spacing: -0.3px; color: #fff; margin: 2px 0; }
.dash-hero-text p { font-size: 0.74rem; color: rgba(255,255,255,0.45); margin: 0; }
.dash-hero-btn {
  position: relative;
  display: flex; align-items: center; gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(6px);
  color: #fff; font-size: 0.8rem; font-weight: 600;
  cursor: pointer; transition: background 0.2s; white-space: nowrap;
}
.dash-hero-btn:hover { background: rgba(255,255,255,0.18); }

/* ── Row layout: 2 hàng x (1fr + 280px) ── */
.dash-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 14px;
  margin-bottom: 14px;
  align-items: stretch;
}
.dash-row .section-card { margin-bottom: 0; }

/* 2026-07-09: hàng lịch KHÔNG stretch — card lịch chỉ cao 1 tuần + legend,
   nếu stretch theo cột roadmap (min-height 460px) sẽ dư ~400px trống chết. */
.dash-row--cal { align-items: start; }
.dash-row--cal .mini-rm-card--full { align-self: stretch; }

/* ── Learning progress card (empty state) ── */
.dash-progress-card { display: flex; flex-direction: column; }
.dash-progress-empty {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; gap: 6px; padding: 18px 8px;
}
.dash-progress-icon { color: var(--blue-light); margin-bottom: 4px; }
.dash-progress-empty p { color: var(--t1); font-size: 0.85rem; font-weight: 600; margin: 0; }
.dash-progress-sub { color: var(--t3); font-size: 0.76rem; }
.dash-progress-btn {
  margin-top: 10px;
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: #fff; font-size: 0.78rem; font-weight: 600;
  transition: opacity 0.2s;
}
.dash-progress-btn:hover { opacity: 0.85; }

/* ── STATS (4 cards horizontal, full width cột trái) ── */
#stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 0;
  align-items: stretch;
}
.page#page-dashboard .stat-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  padding: 12px 12px;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
  min-width: 0;
}
.page#page-dashboard .stat-card:hover { transform: translateY(-2px); }
.page#page-dashboard .stat-icon {
  width: 32px; height: 32px;
  border-radius: 9px;
  font-size: 16px;
  flex-shrink: 0;
}
.page#page-dashboard .stat-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  flex: 1;
}
.page#page-dashboard .stat-val {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.1;
  color: #1F2937;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
body.dark .page#page-dashboard .stat-val { color: #E2E8F0; }
.page#page-dashboard .stat-lbl {
  font-size: 11px;
  font-weight: 500;
  line-height: 1.2;
  color: #6B7280;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.1px;
}
body.dark .page#page-dashboard .stat-lbl { color: #94A3B8; }

/* ── Calendar: trong cột trái, compact ── */
.dash-col-left > .study-cal-card { width: 100%; margin-bottom: 0; }
.dash-col-left > .cal-tooltip { display: none; }
.dash-col-left > .study-cal-card { padding: 14px 18px 10px; }
.dash-col-left > .study-cal-card .study-cal-header { margin-bottom: 10px; }
.dash-col-left > .study-cal-card .cal-day { padding: 10px 4px 8px; }
.dash-col-left > .study-cal-card .study-cal-legend { display: none; }

/* ── CỘT PHẢI: roadmap stretch full height ── */
/* Banner span toàn bộ chiều rộng grid */
.dash-banner { grid-column: 1 / -1; }

.mini-rm-card--full {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 14px 18px 12px;
  min-height: 0;
}
.mini-rm-card--full .mini-rm-header {
  margin-bottom: 10px;
  flex-shrink: 0;
}
.mini-rm-card--full .mini-rm-canvas {
  flex: 1;
  min-height: 460px;
}
.mini-rm-card--full .mini-rm-legend {
  flex-shrink: 0;
  margin-top: 10px;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .dash-row { grid-template-columns: 1fr; gap: 14px; }
  .mini-rm-card--full { min-height: 0; }
  .mini-rm-card--full .mini-rm-canvas { min-height: 360px; }
  .page#page-dashboard { padding: 16px 14px !important; }
}
@media (max-width: 600px) {
  .page#page-dashboard { padding: 14px 10px !important; }
  .dash-hero { padding: 12px 16px; flex-direction: column; align-items: flex-start; }
  .dash-hero-text h2 { font-size: 17px; }
  .dash-hero-btn { width: 100%; justify-content: center; }
  .mini-rm-card--full .mini-rm-canvas { min-height: 300px; }
}

/* ════════════════════════════════════════════════════════════
   ★ BẢNG XẾP HẠNG (Leaderboard)
   ════════════════════════════════════════════════════════════ */
.lb-card { padding: 14px 18px 12px; }

.lb-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; flex-wrap: wrap; margin-bottom: 12px;
}

.lb-tabs {
  display: inline-flex; gap: 4px;
  background: #F3F4F6;
  padding: 3px;
  border-radius: 10px;
  border: 1px solid #E5E7EB;
}
body.dark .lb-tabs { background: var(--bg); border-color: var(--card-border); }

.lb-tab {
  border: none; background: transparent;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px; font-weight: 600;
  color: #6B7280; cursor: pointer;
  transition: background 0.18s, color 0.18s;
  white-space: nowrap;
}
.lb-tab:hover { color: #1F2937; }
.lb-tab.active {
  background: #fff;
  color: #2D7FC1;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.08);
}
body.dark .lb-tab { color: #94A3B8; }
body.dark .lb-tab:hover { color: #E2E8F0; }
body.dark .lb-tab.active {
  background: var(--card);
  color: #38BDF8;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.lb-meta {
  font-size: 12px; color: #94A3B8;
  margin: 4px 0 10px; font-weight: 500;
}
body.dark .lb-meta { color: #64748B; }

.lb-list {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 4px;
}
.lb-skel {
  padding: 12px; text-align: center; color: #9CA3AF; font-size: 13px;
}

.lb-row {
  display: grid;
  grid-template-columns: 32px 32px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 10px;
  transition: background 0.15s;
}
.lb-row:hover { background: #F8FAFC; }
body.dark .lb-row:hover { background: var(--card); }

.lb-row.lb-row-me {
  background: linear-gradient(90deg, #EFF6FF, #F0F9FF);
  border: 1px solid #BFDBFE;
  margin-top: 4px;
}
body.dark .lb-row.lb-row-me {
  background: linear-gradient(90deg, rgba(56,189,248,0.08), rgba(56,189,248,0.04));
  border-color: rgba(56,189,248,0.3);
}

.lb-rank {
  text-align: center;
  font-size: 13px; font-weight: 700;
  color: #9CA3AF;
  font-variant-numeric: tabular-nums;
}
.lb-row.lb-top1 .lb-rank { color: #F59E0B; font-size: 18px; }
.lb-row.lb-top2 .lb-rank { color: #94A3B8; font-size: 18px; }
.lb-row.lb-top3 .lb-rank { color: #B45309; font-size: 18px; }
.lb-rank-text { display: none; }
.lb-row.lb-top1 .lb-rank-num,
.lb-row.lb-top2 .lb-rank-num,
.lb-row.lb-top3 .lb-rank-num { display: none; }
.lb-row.lb-top1 .lb-rank-text,
.lb-row.lb-top2 .lb-rank-text,
.lb-row.lb-top3 .lb-rank-text { display: inline; }

.lb-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: #F3F4F6;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0;
}
body.dark .lb-avatar { background: var(--card); }

.lb-info { min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.lb-name {
  font-size: 13px; font-weight: 600; color: #1F2937;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.lb-row.lb-row-me .lb-name { color: #2D7FC1; }
body.dark .lb-name { color: #E2E8F0; }
.lb-sub { font-size: 10px; color: #9CA3AF; }
body.dark .lb-sub { color: #64748B; }

.lb-value {
  font-size: 13px; font-weight: 700; color: #374151;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.lb-row.lb-top1 .lb-value { color: #D97706; }
.lb-row.lb-top2 .lb-value { color: #475569; }
.lb-row.lb-top3 .lb-value { color: #92400E; }
.lb-row.lb-row-me .lb-value { color: #2D7FC1; }
body.dark .lb-value { color: #CBD5E1; }

.lb-me {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed #E5E7EB;
}
body.dark .lb-me { border-top-color: var(--card-border); }
.lb-me-label {
  font-size: 10px; font-weight: 700; color: #94A3B8;
  text-transform: uppercase; letter-spacing: 0.06em;
  margin: 6px 0 4px;
}
body.dark .lb-me-label { color: #64748B; }

/* ════════════════════════════════════════════════════════════
   ★ MINI ROADMAP CANVAS (cột phải dashboard)
   ════════════════════════════════════════════════════════════ */
.mini-rm-card { padding: 16px 18px 14px; }
.mini-rm-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; margin-bottom: 12px; flex-wrap: wrap;
}
.mini-rm-more {
  font-size: 12px; color: #2D7FC1; text-decoration: none; font-weight: 600;
  transition: color 0.15s;
}
.mini-rm-more:hover { color: #1D4ED8; text-decoration: underline; }
body.dark .mini-rm-more { color: #38BDF8; }
body.dark .mini-rm-more:hover { color: var(--accent-light); }

.mini-rm-canvas {
  position: relative;
  width: 100%;
  height: 560px;
  overflow: hidden;
  background: #F8FAFC;
  background-image: radial-gradient(circle, #CBD5E1 1.2px, transparent 1.2px);
  background-size: 20px 20px;
  border-radius: 14px;
  border: 1.5px solid #E5E7EB;
}
body.dark .mini-rm-canvas {
  background-color: var(--bg);
  background-image: radial-gradient(circle, rgba(51,65,85,0.7) 1.2px, transparent 1.2px);
  border-color: var(--card);
}
.mini-rm-loading {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: #94A3B8; font-weight: 500;
}

.mini-rm-arrows {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; overflow: visible;
}
.mini-rm-arrow {
  fill: none;
  stroke: #94A3B8;
  stroke-width: 2;
  stroke-dasharray: 5 4;
  stroke-linecap: round;
}
body.dark .mini-rm-arrow { stroke: #475569; }
.mini-rm-arrow--solid { stroke-dasharray: none; }

/* Truck animation on roadmap path */
.mini-rm-truck {
  /* drop-shadow on a small static element is cheap, but we use will-change to
     hint the compositor that the truck + its shadow may move along a path. */
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.20));
  z-index: 5;
  will-change: transform;
  /* Promote the truck to its own GPU layer (cheap on modern GPUs; avoids
     re-rasterization on each animateMotion frame). */
  transform: translateZ(0);
}
body.dark .mini-rm-truck circle { fill: #FBBF24; stroke: #D97706; }

.mini-rm-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px 10px 10px;
  border-radius: 999px;
  background: #fff;
  border: 1.5px solid #E5E7EB;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.08);
  cursor: pointer;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
  -webkit-user-select: none;
  user-select: none;
  white-space: nowrap;
  max-width: 94%;
}
.mini-rm-node:hover {
  transform: translate(-50%, -50%) translateY(-2px) scale(1.04);
  box-shadow: 0 6px 18px rgba(74, 158, 224, 0.22);
  border-color: var(--accent);
  z-index: 2;
}
body.dark .mini-rm-node {
  background: var(--card);
  border-color: var(--card-border);
  color: #E2E8F0;
}

.mini-rm-node--done {
  background: linear-gradient(135deg, #ECFDF5, #F0FDF4);
  border-color: #6EE7B7;
}
.mini-rm-node--done .mini-rm-node-icon { background: #10B981; color: #fff; }
body.dark .mini-rm-node--done {
  background: linear-gradient(135deg, rgba(16,185,129,0.15), rgba(16,185,129,0.05));
  border-color: rgba(16,185,129,0.4);
}

.mini-rm-node--current {
  background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(74, 158, 224, 0.25);
}
.mini-rm-node--current .mini-rm-node-icon { background: var(--accent); color: #fff; }
body.dark .mini-rm-node--current {
  background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(59,130,246,0.05));
  border-color: #38BDF8;
}

.mini-rm-node--locked { opacity: 0.55; }
.mini-rm-node--locked .mini-rm-node-icon { background: #E5E7EB; color: #9CA3AF; }

.mini-rm-node-icon {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: #F3F4F6;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0;
}
.mini-rm-node-body { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.mini-rm-node-title {
  font-size: 13px; font-weight: 700; color: #1F2937;
  max-width: 170px; overflow: hidden; text-overflow: ellipsis;
}
body.dark .mini-rm-node-title { color: #E2E8F0; }
.mini-rm-node-sub {
  font-size: 11px; color: #94A3B8; font-weight: 500;
}
body.dark .mini-rm-node-sub { color: #64748B; }

.mini-rm-legend {
  display: flex; align-items: center; gap: 14px;
  margin-top: 12px; flex-wrap: wrap;
}
.lb-legend-item {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; color: #6B7280;
}
body.dark .lb-legend-item { color: #94A3B8; }
.lb-legend-dot {
  display: inline-flex; align-items: center; justify-content: center;
  width: 18px; height: 18px;
  border-radius: 50%;
  font-size: 10px; font-weight: 700;
  flex-shrink: 0;
}
.lb-legend-dot.lb-done {
  background: #10B981; color: #fff;
}
.lb-legend-dot.lb-progress {
  background: var(--accent); color: #fff;
}
.lb-legend-dot.lb-locked {
  background: #F3F4F6; color: #9CA3AF; border: 1.5px solid #E5E7EB;
}
body.dark .lb-legend-dot.lb-locked { background: var(--card); border-color: var(--card-border); }

.mini-rm-empty {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; padding: 24px;
  color: #94A3B8;
  font-size: 12px; gap: 8px;
}
.mini-rm-empty-icon { font-size: 36px; opacity: 0.6; }
.mini-rm-empty-cta {
  margin-top: 4px;
  padding: 6px 14px; border-radius: 8px;
  background: var(--accent); color: #fff;
  border: none; font-weight: 600; cursor: pointer;
  font-size: 12px; text-decoration: none;
}

/* ── Mini canvas mobile: thấp hơn ── */
@media (max-width: 600px) {
  .mini-rm-canvas { height: 320px; }
  .mini-rm-node { padding: 6px 10px 6px 6px; }
  .mini-rm-node-icon { width: 24px; height: 24px; font-size: 12px; }
  .mini-rm-node-title { font-size: 11px; max-width: 110px; }
}


/* ── Profile: Forum Posts ── */
.prof-post-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.prof-post-card {
  background: #fff;
  border: 1px solid #F3F4F6;
  border-radius: 12px;
  padding: 14px;
  transition: all 0.2s ease;
}
.prof-post-card:hover {
  border-color: #BFDBFE;
  box-shadow: 0 4px 12px rgba(74, 158, 224, 0.1);
}

.prof-post-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.prof-post-cat {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 6px;
  font-weight: 500;
}

.prof-post-time {
  font-size: 11px;
  color: #9CA3AF;
}

.prof-post-title {
  font-weight: 600;
  font-size: 14px;
  color: #1F2937;
  margin-bottom: 6px;
  line-height: 1.4;
}

.prof-post-excerpt {
  font-size: 12px;
  color: #6B7280;
  line-height: 1.5;
  margin-bottom: 8px;
}

.prof-post-stats {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: #9CA3AF;
}

/* Dark mode */
body.dark .prof-post-card {
  background: var(--card);
  border-color: var(--card-border);
}
body.dark .prof-post-title {
  color: #F1F5F9;
}
body.dark .prof-post-excerpt {
  color: #94A3B8;
}
body.dark .prof-post-stats {
  color: #64748B;
}

/* ════════════════════════════════════════════════════════════════════════════
 * REDESIGN 2026-06-28 — PHASE B (dashboard brand signatures)
 * Author: Mavis (autonomous session, user vắng 4-5h)
 * References:
 *   - shadcn/ui: card grid + dark mode tokens → .section-card polish
 *   - Brilliant.org: progress visualization + achievement badges
 *   - Codecademy.com: course card layouts with completion percentages
 *   - Shaders.com: ambient gradient mesh + glow halos
 *   - google-labs-code/design.md: token alignment with lesson player
 * ════════════════════════════════════════════════════════════════════════════ */

/* ─── B1: Design tokens bridge (re-use lesson :root values) ────────────────── */
:root {
  --module-amber: #F59E0B;
  --module-amber-soft: rgba(245, 158, 11, 0.12);
  --module-indigo: #8B5CF6;
  --module-indigo-soft: rgba(139, 92, 241, 0.12);
  --module-emerald: #10B981;
  --module-emerald-soft: rgba(16, 185, 129, 0.12);
  --glow-primary: 0 0 24px rgba(6, 182, 212, 0.30);
  --glow-amber: 0 0 24px rgba(245, 158, 11, 0.30);
  --glow-indigo: 0 0 24px rgba(139, 92, 241, 0.30);
  --glow-emerald: 0 0 24px rgba(16, 185, 129, 0.30);
  --strip-h: 3px;
}

/* ─── B2: Welcome banner — stronger glass + animated gradient ─────────────── */
.welcome-banner {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  isolation: isolate;
}

.welcome-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 50%, rgba(236, 72, 153, 0.30), transparent 50%),
    radial-gradient(circle at 15% 80%, rgba(6, 182, 212, 0.25), transparent 50%);
  z-index: -1;
  animation: welcome-mesh-drift 12s ease-in-out infinite alternate;
}

@keyframes welcome-mesh-drift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-3%, 2%) scale(1.06); }
}

.welcome-banner::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 18px;
  padding: 1px;
  background: linear-gradient(135deg,
    rgba(6, 182, 212, 0.45),
    rgba(168, 85, 247, 0.35) 40%,
    rgba(236, 72, 153, 0.35));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: -1;
}

.welcome-banner h2 {
  background: linear-gradient(135deg, #FFFFFF 0%, #06B6D4 50%, #A855F7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.welcome-banner .banner-code {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.20), rgba(168, 85, 247, 0.20));
  border: 1px solid rgba(148, 163, 184, 0.20);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 800;
  color: var(--text-100, #F8FAFC);
  transition: all var(--anim-fast, 200ms) var(--ease-out-quart);
}

.welcome-banner:hover .banner-code {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.40), rgba(168, 85, 247, 0.40));
  box-shadow: 0 0 24px rgba(6, 182, 212, 0.35);
  transform: scale(1.05);
}

/* ─── B3: Section cards — shadcn-style polish + module strips ────────────── */
.section-card {
  position: relative;
  border-radius: 16px;
  transition: transform var(--anim-fast, 200ms) var(--ease-out-quart, cubic-bezier(0.25, 1, 0.5, 1)),
              border-color var(--anim-fast, 200ms),
              box-shadow var(--anim-fast, 200ms);
}

/* Module color strip — top edge accent */
.section-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 16px;
  right: 16px;
  height: var(--strip-h, 3px);
  background: linear-gradient(90deg,
    var(--module-amber) 0%,
    var(--module-indigo) 50%,
    var(--module-emerald) 100%);
  border-radius: 0 0 3px 3px;
  opacity: 0.5;
  transition: opacity var(--anim-fast, 200ms);
}

.section-card:hover {
  transform: translateY(-2px);
  border-color: rgba(6, 182, 212, 0.25);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), var(--glow-primary);
}

.section-card:hover::before {
  opacity: 1;
}

/* Section title — gradient text option */
.section-title span:not(.title-icon-blue) {
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* ─── B4: Calendar grid — module color heatmap ─────────────────────────── */
.study-cal-grid {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.08);
}

.skel-cal-day {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.6), rgba(11, 17, 33, 0.4));
  border: 1px solid rgba(148, 163, 184, 0.06);
  border-radius: 10px;
  transition: all var(--anim-fast, 200ms) ease;
}

/* ─── B5: Leaderboard card — hex node avatars ──────────────────────────── */
.lb-card { padding-top: 14px; }

.lb-list li {
  position: relative;
  padding-left: 44px;
}

.lb-list li::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--module-indigo), rgba(168, 85, 247, 0.6));
  clip-path: polygon(25% 5%, 75% 5%, 100% 50%, 75% 95%, 25% 95%, 0% 50%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lb-list li:nth-child(1)::before { background: linear-gradient(135deg, #FBBF24, #F59E0B); }
.lb-list li:nth-child(2)::before { background: linear-gradient(135deg, #D1D5DB, #9CA3AF); }
.lb-list li:nth-child(3)::before { background: linear-gradient(135deg, #FB923C, #EA580C); }

/* ─── B6: Roadmap canvas — module accent tints ─────────────────────────── */
.mini-rm-canvas {
  background:
    radial-gradient(circle at 50% 0%, rgba(139, 92, 241, 0.04), transparent 60%),
    linear-gradient(180deg, rgba(11, 17, 33, 0.4), rgba(15, 23, 42, 0.6));
  border-radius: 12px;
}

.mini-rm-loading {
  color: var(--text-400, #94A3B8);
  font-style: italic;
}

/* ─── B7: Stats gradient (re-use from course detail polish) ───────────── */
.streak-pill,
.cal-streak-num {
  background: linear-gradient(135deg, #F59E0B, #EF4444);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

/* ─── B8: Hover lift on interactive cards (Codecademy-inspired) ────────── */
.study-cal-card,
.lb-card,
.mini-rm-card {
  cursor: default;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .welcome-banner::before {
    animation: none !important;
  }
}

/* ── Tiến độ học tập: danh sách khóa đang học (đọc từ bảng enrollments) ── */
.dash-progress-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 12px;
}
.dash-prog-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px;
  border-radius: 12px;
  background: var(--bg2, rgba(255, 255, 255, 0.03));
  border: 1px solid var(--bd, rgba(255, 255, 255, 0.06));
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}
.dash-prog-row:hover { border-color: var(--blue-light); transform: translateY(-1px); }
.dash-prog-icon {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 9px; font-size: 17px; flex-shrink: 0;
}
.dash-prog-main { flex: 1; min-width: 0; }
.dash-prog-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px;
}
.dash-prog-title {
  font-size: 0.82rem; font-weight: 700; color: var(--t1);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.dash-prog-pct { font-size: 0.78rem; font-weight: 800; flex-shrink: 0; }
.dash-prog-bar-bg {
  height: 6px; border-radius: 999px; margin: 6px 0 7px;
  background: var(--bd, rgba(255, 255, 255, 0.08));
  overflow: hidden;
}
.dash-prog-bar-fill { height: 100%; border-radius: 999px; transition: width 0.6s ease; }
.dash-prog-meta {
  display: flex; flex-wrap: wrap; gap: 4px 12px;
  font-size: 0.72rem; color: var(--t3);
}
/* auth.css có .section-card strong {display:block;font-size:18px} — phải đè lại */
.dash-progress-card .dash-prog-meta strong,
.dash-progress-card .dash-prog-next strong {
  display: inline; font-size: inherit; margin: 0;
  color: var(--t2); font-weight: 600;
}
.dash-prog-next {
  margin-top: 5px; font-size: 0.72rem; color: var(--t3);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.dash-prog-cta {
  margin-top: 7px;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 12px; border: none; border-radius: 7px; cursor: pointer;
  font-size: 0.73rem; font-weight: 700; color: #fff;
  transition: opacity 0.2s;
}
.dash-prog-cta:hover { opacity: 0.85; }
.dash-progress-footer {
  margin-top: 4px; text-align: center;
}
.dash-progress-footer button {
  background: none; border: none; cursor: pointer;
  color: var(--blue-light); font-size: 0.75rem; font-weight: 600; padding: 6px;
}
.dash-progress-footer button:hover { text-decoration: underline; }

/* [hidden] phải thắng display:flex khai báo ở trên (UA style bị override) */
.dash-progress-empty[hidden],
.dash-progress-list[hidden] { display: none; }
.dash-prog-meta span { white-space: nowrap; }