:root {
  --sidebar-w: 220px;
  /* 音樂專屬強調色：電氣紫 (Electric Violet / Amethyst) */
  --accent: #a855f7;
  --accent-light: #c084fc;
  --accent-dim: #7e22ce;
  --accent-glow: rgba(168, 85, 247, 0.14);
  --accent-glow-strong: rgba(168, 85, 247, 0.28);
  --accent-border: rgba(168, 85, 247, 0.35);

  --bg: #090b10;
  --bg-2: #11141d;
  --bg-3: #181d29;
  --text: #f1f5f9;
  --text-2: #94a3b8;
  --text-3: #64748b;
  --border: #202636;
  --border-2: #2e374d;

  /* Badges */
  --badge-violet-bg: rgba(168, 85, 247, 0.16);
  --badge-violet-fg: #c084fc;
  --badge-violet-border: rgba(168, 85, 247, 0.3);

  --badge-blue-bg: rgba(56, 189, 248, 0.15);
  --badge-blue-fg: #38bdf8;
  --badge-blue-border: rgba(56, 189, 248, 0.3);

  --badge-green-bg: rgba(34, 197, 94, 0.15);
  --badge-green-fg: #4ade80;
  --badge-green-border: rgba(34, 197, 94, 0.3);

  --badge-amber-bg: rgba(245, 158, 11, 0.15);
  --badge-amber-fg: #fbbf24;
  --badge-amber-border: rgba(245, 158, 11, 0.3);

  --badge-pink-bg: rgba(236, 72, 153, 0.15);
  --badge-pink-fg: #f472b6;
  --badge-pink-border: rgba(236, 72, 153, 0.3);

  --badge-gray-bg: rgba(148, 163, 184, 0.12);
  --badge-gray-fg: #94a3b8;
  --badge-gray-border: rgba(148, 163, 184, 0.25);

  --spotify-green: #1ed760;
  --spotify-green-hover: #22e668;
  --warn-fg: #f87171;

  --hero-grad: linear-gradient(135deg, #090b10 0%, #171328 50%, #0d1322 100%);
  --hero-glow: rgba(168, 85, 247, 0.16);
  --hero-overlay: linear-gradient(transparent 0%, rgba(9, 11, 16, 0.94) 100%);
  --shadow-drawer: rgba(0, 0, 0, 0.65);
  color-scheme: dark;
}

/* ─── LIGHT THEME ───────────────────────────────────────── */
:root[data-theme="light"] {
  --accent: #7c3aed;
  --accent-light: #6d28d9;
  --accent-dim: #8b5cf6;
  --accent-glow: rgba(124, 58, 237, 0.1);
  --accent-glow-strong: rgba(124, 58, 237, 0.2);
  --accent-border: rgba(124, 58, 237, 0.3);

  --bg: #f8fafc;
  --bg-2: #ffffff;
  --bg-3: #f1f5f9;
  --text: #0f172a;
  --text-2: #334155;
  --text-3: #64748b;
  --border: #e2e8f0;
  --border-2: #cbd5e1;

  --badge-violet-fg: #6d28d9;
  --badge-blue-fg: #0284c7;
  --badge-green-fg: #15803d;
  --badge-amber-fg: #b45309;
  --badge-pink-fg: #be185d;
  --badge-gray-fg: #475569;

  --spotify-green: #15803d;
  --spotify-green-hover: #166534;
  --warn-fg: #dc2626;

  --hero-grad: linear-gradient(135deg, #f8fafc 0%, #f4effe 50%, #edf2f7 100%);
  --hero-glow: rgba(124, 58, 237, 0.08);
  --hero-overlay: linear-gradient(transparent 0%, rgba(248, 250, 252, 0.95) 100%);
  --shadow-drawer: rgba(0, 0, 0, 0.18);
  color-scheme: light;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  overflow-y: scroll;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.7;
}

body.drawer-open {
  overflow: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-light);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ─── SIDEBAR ────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 200;
  display: flex;
  flex-direction: column;
  scrollbar-width: thin;
  scrollbar-color: var(--border-2) transparent;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 2px; }

.sidebar-logo {
  padding: 20px 16px 16px;
  padding-right: 56px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.sidebar-logo a {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--text);
}

.sidebar-logo .logo-en {
  font-size: 16px;
  letter-spacing: 2.5px;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.sidebar-logo .logo-sub {
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.5px;
}

.theme-toggle {
  position: absolute;
  top: 16px;
  right: 12px;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-2);
  border-radius: 50%;
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-glow);
}

.theme-toggle svg {
  width: 15px;
  height: 15px;
}

.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.sidebar-nav {
  padding: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-home {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-2);
  font-size: 13px;
  letter-spacing: 0.5px;
  transition: all 0.2s;
}

.sidebar-home:hover,
.sidebar-home.active {
  color: var(--accent);
  background: var(--accent-glow);
  font-weight: 600;
}

.sidebar-home svg { flex-shrink: 0; }

.sidebar-section-title {
  padding: 16px 16px 6px;
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 700;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px 9px 18px;
  color: var(--text-2);
  font-size: 13px;
  transition: all 0.2s;
  border-left: 3px solid transparent;
  line-height: 1.4;
}

.sidebar-item:hover {
  color: var(--accent);
  background: var(--accent-glow);
  border-left-color: var(--accent-dim);
}

.sidebar-item.active {
  color: var(--accent);
  background: var(--accent-glow);
  border-left-color: var(--accent);
  font-weight: 600;
}

.sidebar-footer {
  margin-top: auto;
  padding: 16px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-3);
  line-height: 1.5;
}

/* ─── MAIN CONTENT ────────────────────────────────────── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  overflow-x: hidden;
  max-width: calc(100vw - var(--sidebar-w));
  display: flex;
  flex-direction: column;
}

.page-container {
  flex: 1;
}

/* ─── HERO BANNER ─────────────────────────────────────── */
.hero-banner {
  background: var(--hero-grad);
  padding: 44px 40px 24px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, var(--hero-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-banner .label {
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-banner h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 10px;
}

.hero-banner h1 span {
  color: var(--accent);
}

.hero-banner .hero-sub {
  font-size: 14.5px;
  color: var(--text-2);
  max-width: 680px;
  line-height: 1.8;
  margin-bottom: 12px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--text-3);
  margin-top: 14px;
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ─── SECTION TITLE ───────────────────────────────────── */
.section-title {
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--border-2), transparent);
}

/* ─── DASHBOARD STATS ─────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  transition: transform 0.2s, border-color 0.2s;
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  opacity: 0.6;
}

.stat-label {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-value span {
  color: var(--accent);
}

.stat-desc {
  font-size: 12px;
  color: var(--text-2);
}

/* ─── CONTENT BLOCKS ──────────────────────────────────── */
.content-section {
  padding: 32px 40px;
}

.content-section + .content-section {
  padding-top: 0;
}

/* ─── BREAKDOWN BARS ──────────────────────────────────── */
.breakdown-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.breakdown-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.breakdown-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.breakdown-item {
  margin-bottom: 12px;
}

.breakdown-item:last-child {
  margin-bottom: 0;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  margin-bottom: 4px;
}

.breakdown-track {
  height: 6px;
  background: var(--bg-3);
  border-radius: 3px;
  overflow: hidden;
}

.breakdown-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  transition: width 0.4s ease;
}

/* ─── BADGES ──────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.badge-violet { background: var(--badge-violet-bg); color: var(--badge-violet-fg); border: 1px solid var(--badge-violet-border); }
.badge-blue   { background: var(--badge-blue-bg);   color: var(--badge-blue-fg);   border: 1px solid var(--badge-blue-border); }
.badge-green  { background: var(--badge-green-bg);  color: var(--badge-green-fg);  border: 1px solid var(--badge-green-border); }
.badge-amber  { background: var(--badge-amber-bg);  color: var(--badge-amber-fg);  border: 1px solid var(--badge-amber-border); }
.badge-pink   { background: var(--badge-pink-bg);   color: var(--badge-pink-fg);   border: 1px solid var(--badge-pink-border); }
.badge-gray   { background: var(--badge-gray-bg);   color: var(--badge-gray-fg);   border: 1px solid var(--badge-gray-border); }

/* ─── FILTER CONTROLS ─────────────────────────────────── */
.filter-bar {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.search-box {
  flex: 1 1 240px;
  position: relative;
}

.search-input {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border-2);
  border-radius: 6px;
  padding: 8px 12px 8px 34px;
  font-size: 13px;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-icon {
  position: absolute;
  top: 50%;
  left: 10px;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--text-3);
  pointer-events: none;
}

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

.filter-label {
  font-size: 12px;
  color: var(--text-3);
  font-weight: 500;
}

.filter-select {
  background: var(--bg-3);
  border: 1px solid var(--border-2);
  border-radius: 6px;
  padding: 7px 28px 7px 10px;
  font-size: 12px;
  color: var(--text);
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  font-family: inherit;
}

.filter-select:focus {
  border-color: var(--accent);
}

.filter-count {
  font-size: 12px;
  color: var(--text-2);
  margin-left: auto;
}

/* ─── DATA TABLE ──────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  scrollbar-width: thin;
  scrollbar-color: var(--border-2) var(--bg-3);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 800px;
}

.data-table thead tr {
  background: var(--bg-3);
  border-bottom: 1px solid var(--border-2);
}

.data-table th {
  padding: 12px 14px;
  text-align: left;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
}

.data-table th[data-sortable] {
  cursor: pointer;
  user-select: none;
}

.data-table th[data-sortable]:hover {
  color: var(--accent-light);
  background: var(--accent-glow);
}

.data-table th[data-sortable]::after {
  content: ' ⇅';
  font-size: 10px;
  opacity: 0.4;
  vertical-align: middle;
}

.data-table th[data-sortable][data-order="asc"]::after {
  content: ' ▲';
  opacity: 1;
  color: var(--accent);
}

.data-table th[data-sortable][data-order="desc"]::after {
  content: ' ▼';
  opacity: 1;
  color: var(--accent);
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background 0.15s;
}

.data-table tbody tr:hover {
  background: var(--accent-glow);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.track-title {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.track-artist {
  font-size: 12px;
  color: var(--text-2);
}

.track-album {
  font-size: 12px;
  color: var(--text-2);
}

.track-duration {
  font-family: monospace;
  font-size: 12px;
  color: var(--text-3);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

/* ─── SAMPLE DATA BANNER ──────────────────────────────── */
.sample-banner {
  background: rgba(245, 158, 11, 0.14);
  border-bottom: 1px solid rgba(245, 158, 11, 0.35);
  color: var(--badge-amber-fg);
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  position: relative;
  z-index: 100;
}

:root[data-theme="light"] .sample-banner {
  background: #fef3c7;
  border-bottom: 1px solid #fde68a;
  color: #92400e;
}

.sample-banner-icon {
  font-size: 14px;
}

/* ─── SPOTIFY BUTTON ──────────────────────────────────── */
.btn-spotify {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(30, 215, 96, 0.12);
  color: var(--spotify-green);
  border: 1px solid rgba(30, 215, 96, 0.3);
  border-radius: 16px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-spotify:hover {
  background: var(--spotify-green);
  color: #000;
  border-color: var(--spotify-green);
}

.btn-spotify svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.btn-spotify.disabled {
  opacity: 0.65;
  cursor: not-allowed;
  background: var(--bg-3);
  color: var(--text-3);
  border-color: var(--border-2);
  pointer-events: none;
  user-select: none;
}

/* ─── CLASSICAL TREE VIEW ─────────────────────────────── */
.classical-tree {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.composer-node {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.composer-header {
  padding: 16px 20px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.composer-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
}

.composer-chevron {
  transition: transform 0.2s;
  color: var(--text-3);
}

.composer-node.collapsed .composer-chevron {
  transform: rotate(-90deg);
}

.composer-node.collapsed .composer-body {
  display: none;
}

.composer-body {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.work-card {
  border-left: 2px solid var(--accent-dim);
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.work-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.work-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.movement-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.movement-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 6px;
  gap: 10px;
}

.movement-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.movement-performers {
  font-size: 12px;
  color: var(--text-2);
}

/* ─── KIDS & CAR PAGE ─────────────────────────────────── */
.playlist-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.tab-btn {
  padding: 8px 16px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-2);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.tab-btn:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

.tab-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
}

.playlist-header-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.playlist-info h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}

.playlist-info p {
  font-size: 13px;
  color: var(--text-2);
}

/* ─── PIPELINE DIAGRAM (ABOUT PAGE) ───────────────────── */
.pipeline-diagram {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  margin: 24px 0 36px;
}

.pipeline-stage {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 24px;
  position: relative;
  transition: border-color 0.2s;
}

.pipeline-stage:hover {
  border-color: var(--accent-dim);
}

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

.stage-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  margin-right: 8px;
}

.pipeline-stage h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
}

.pipeline-desc {
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.8;
}

.pipeline-arrow {
  display: flex;
  justify-content: center;
  color: var(--accent);
  font-size: 18px;
  opacity: 0.7;
}

.arch-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.arch-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.arch-card h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}

.arch-card p {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.7;
}

/* ─── FOOTER ──────────────────────────────────────────── */
.page-footer {
  padding: 24px 40px;
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-3);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}

.page-footer a {
  color: var(--text-3);
}

.page-footer a:hover {
  color: var(--accent);
}

/* ─── RESPONSIVE & MOBILE DRAWER ──────────────────────── */
.menu-toggle {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 400;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  color: var(--text);
  padding: 8px 11px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 150;
}

.sidebar-overlay.active {
  display: block;
}

@media (max-width: 900px) {
  body {
    overflow-x: hidden;
  }

  .menu-toggle {
    display: block;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.28s ease;
    z-index: 200;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px var(--shadow-drawer);
  }

  .main {
    margin-left: 0;
    max-width: 100vw;
  }

  .hero-banner {
    padding: 56px 20px 24px;
  }

  .hero-banner h1 {
    font-size: 26px;
  }

  .content-section {
    padding: 24px 16px;
  }

  .page-footer {
    padding: 16px;
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}