/* ================================================================
   Github Ranking — Observatory Dark Theme
   Glass morphism · Ambient glows · Category color system
   ================================================================ */

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

:root {
  --bg:      #060a12;
  --bg2:     #0b1120;
  --glass:   rgba(255,255,255,0.03);
  --glass2:  rgba(255,255,255,0.06);
  --border:  rgba(255,255,255,0.08);
  --border2: rgba(255,255,255,0.16);

  --text:    #dde6f0;
  --text2:   #8896aa;
  --text3:   #4a5568;

  --cyan:    #22d3ee;
  --violet:  #a78bfa;
  --blue:    #60a5fa;
  --green:   #34d399;
  --star:    #fbbf24;
  --red:     #f87171;

  --grad:         linear-gradient(135deg, #22d3ee, #a78bfa);
  --grad-warm:    linear-gradient(135deg, #fbbf24, #fb923c);
  --grad-gold:    linear-gradient(135deg, #fcd34d, #f59e0b);
  --grad-silver:  linear-gradient(135deg, #e2e8f0, #94a3b8);
  --grad-bronze:  linear-gradient(135deg, #fdba74, #b45309);

  --sidebar-w:   252px;
  --topbar-h:    54px;
  --radius:      10px;

  --font:      -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC",
               Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", Consolas, monospace;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* ── Ambient Background ─────────────────────────────── */
.bg-fx {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}
.bg-g1 {
  width: 700px; height: 500px;
  top: 5%; left: -120px;
  background: radial-gradient(circle, rgba(34,211,238,0.11) 0%, transparent 70%);
}
.bg-g2 {
  width: 600px; height: 700px;
  top: -50px; right: -80px;
  background: radial-gradient(circle, rgba(167,139,250,0.09) 0%, transparent 70%);
}
.bg-g3 {
  width: 500px; height: 400px;
  bottom: 10%; right: 15%;
  background: radial-gradient(circle, rgba(96,165,250,0.07) 0%, transparent 70%);
}
.bg-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.055) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 30%, black, transparent);
  mask-image: radial-gradient(ellipse 75% 65% at 50% 30%, black, transparent);
}

/* ── Layout ─────────────────────────────────────────── */
.layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ── Page Transitions ───────────────────────────────── */
@keyframes pgEnter {
  from { opacity: 0; transform: translateY(18px) scale(0.995); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes pgExit {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-12px); }
}
.layout { animation: pgEnter 0.48s cubic-bezier(0.22, 1, 0.36, 1) both; }
body.exiting .layout { animation: pgExit 0.26s ease forwards; }

/* ── Sidebar ────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  background: rgba(6,10,18,0.82);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-right: 1px solid var(--border);
  z-index: 200;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1),
              box-shadow 0.35s;
}
.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.07) transparent;
  padding-bottom: 36px;
}
.sidebar-scroll::-webkit-scrollbar { width: 3px; }
.sidebar-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 2px; }

/* Brand */
.sidebar-header {
  padding: 15px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.brand-logo {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 900; color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 22px rgba(34,211,238,0.28);
  letter-spacing: -0.5px;
}
.brand-name {
  font-size: 15px; font-weight: 700;
  color: var(--text);
  transition: color 0.15s;
}
.brand:hover .brand-name { color: var(--cyan); }

/* Sidebar search */
.sidebar-search {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: relative;
}
.sidebar-search-icon {
  position: absolute;
  left: 23px; top: 50%; transform: translateY(-50%);
  color: var(--text3);
  font-size: 12px;
  pointer-events: none;
}
.nav-search {
  width: 100%;
  padding: 7px 12px 7px 30px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text);
  font-size: 13px; font-family: var(--font);
  outline: none;
  transition: all 0.2s;
}
.nav-search::placeholder { color: var(--text3); }
.nav-search:focus {
  border-color: var(--cyan);
  background: var(--glass2);
  box-shadow: 0 0 0 3px rgba(34,211,238,0.08);
}

/* Nav groups */
.sidebar-nav { padding: 6px 0; }
.nav-group { margin-bottom: 4px; }
.nav-group-label {
  padding: 10px 16px 3px;
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--text3);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 10px 6px 14px;
  margin: 1px 8px;
  border-radius: 7px;
  color: var(--text2);
  font-size: 13px;
  text-decoration: none;
  transition: all 0.15s;
  border: 1px solid transparent;
  cursor: pointer;
}
.nav-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--dot-color, var(--text3));
  flex-shrink: 0;
  transition: all 0.25s;
}
.nav-link:hover {
  background: var(--glass2);
  color: var(--text);
  border-color: var(--border);
  text-decoration: none;
}
.nav-link:hover .nav-dot {
  background: var(--dot-color, var(--cyan));
  box-shadow: 0 0 8px var(--dot-color, var(--cyan));
}
.nav-link.active {
  background: rgba(34,211,238,0.07);
  border-color: rgba(34,211,238,0.14);
  color: var(--text);
}
.nav-link.active .nav-dot {
  background: var(--dot-color, var(--cyan));
  box-shadow: 0 0 10px var(--dot-color, var(--cyan));
}

/* ── Main ───────────────────────────────────────────── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ── Topbar ─────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 100;
  height: var(--topbar-h);
  background: rgba(6,10,18,0.78);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 32px; gap: 16px;
}
.sidebar-toggle {
  display: none;
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--text2);
  width: 34px; height: 34px;
  border-radius: 8px;
  cursor: pointer; font-size: 15px;
  align-items: center; justify-content: center;
  transition: all 0.2s; flex-shrink: 0;
}
.sidebar-toggle:hover { background: var(--glass2); color: var(--text); }

.topbar-crumb {
  flex: 1;
  display: flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--text2);
  min-width: 0; overflow: hidden;
}
.crumb-root { color: var(--text3); flex-shrink: 0; }
.crumb-sep  { color: var(--text3); flex-shrink: 0; }
.crumb-cur  {
  color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: opacity 0.2s;
  font-weight: 500;
}

.live-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 12px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 11px; color: var(--text2);
  white-space: nowrap; flex-shrink: 0;
}
.live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.lang-btn {
  padding: 5px 18px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text2);
  font-size: 13px; font-weight: 500; font-family: var(--font);
  cursor: pointer; transition: all 0.2s; flex-shrink: 0;
}
.lang-btn:hover {
  background: var(--grad);
  border-color: transparent;
  color: #fff;
}

/* ── Content ────────────────────────────────────────── */
.content {
  padding: 44px 44px 88px;
  max-width: 1600px; width: 100%;
}

/* ── Hero ───────────────────────────────────────────── */
.hero {
  padding-bottom: 52px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}
.hero-eyebrow {
  display: flex; align-items: center; gap: 10px;
  font-size: 11px; font-weight: 700;
  letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 20px;
}
.hero-eyebrow::before {
  content: '';
  width: 28px; height: 2px;
  background: var(--grad);
  border-radius: 2px;
  display: block;
}
.hero-title {
  font-size: clamp(28px, 3.8vw, 46px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 16px;
  color: var(--text2);
  margin-bottom: 32px;
  max-width: 540px;
  line-height: 1.7;
}

/* Hero stats */
.hero-stats {
  display: flex; gap: 0;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  width: fit-content;
  backdrop-filter: blur(10px);
}
.hero-stat {
  padding: 16px 32px;
  text-align: center;
  border-right: 1px solid var(--border);
  min-width: 120px;
}
.hero-stat:last-child { border-right: none; }
.hero-stat-num {
  display: block;
  font-size: 22px; font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2; margin-bottom: 4px;
}
.hero-stat-label {
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 1.2px; color: var(--text3); font-weight: 600;
}

/* ── Ranking Section ────────────────────────────────── */
.ranking-section {
  padding-top: 52px;
  scroll-margin-top: calc(var(--topbar-h) + 16px);
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1),
              transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
.ranking-section.revealed { opacity: 1; transform: translateY(0); }

/* Section header */
.section-hd {
  display: flex; align-items: flex-start;
  justify-content: space-between;
  gap: 16px; margin-bottom: 20px;
}
.section-hd-left { display: flex; align-items: flex-start; gap: 14px; }

.section-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--section-bg, rgba(34,211,238,0.1));
  border: 1px solid var(--section-border, rgba(34,211,238,0.2));
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
  transition: transform 0.2s, box-shadow 0.2s;
}
.section-hd:hover .section-icon {
  transform: scale(1.08);
  box-shadow: 0 0 20px var(--section-bg, rgba(34,211,238,0.15));
}
.section-title {
  font-size: 17px; font-weight: 700;
  color: var(--text); margin-bottom: 3px;
  display: flex; align-items: center; gap: 8px;
}
.section-pill {
  font-size: 10px; font-weight: 700;
  padding: 1px 8px; border-radius: 20px;
  background: var(--section-bg, rgba(34,211,238,0.1));
  color: var(--section-color, var(--cyan));
  border: 1px solid var(--section-border, rgba(34,211,238,0.2));
  letter-spacing: 0.5px;
}
.section-sub { font-size: 12px; color: var(--text3); }

.section-actions {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0;
}

/* Search */
.search-wrap { position: relative; }
.search-icon {
  position: absolute;
  left: 11px; top: 50%; transform: translateY(-50%);
  color: var(--text3); font-size: 12px;
  pointer-events: none;
}
.table-search {
  width: 175px;
  padding: 7px 12px 7px 30px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text);
  font-size: 13px; font-family: var(--font);
  outline: none; transition: all 0.25s;
}
.table-search::placeholder { color: var(--text3); }
.table-search:focus {
  width: 220px;
  border-color: var(--section-color, var(--cyan));
  background: var(--glass2);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--section-color, var(--cyan)) 14%, transparent);
}

.see-all-btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 7px 18px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px; font-weight: 500;
  color: var(--text2);
  transition: all 0.22s;
  white-space: nowrap; text-decoration: none;
}
.see-all-btn:hover {
  background: var(--section-color, var(--cyan));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 22px color-mix(in srgb, var(--section-color, var(--cyan)) 40%, transparent);
  transform: translateY(-1px);
  text-decoration: none;
}

/* ── Table Card ─────────────────────────────────────── */
.table-card {
  background: var(--glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.04) inset,
    0 12px 40px rgba(0,0,0,0.38);
  position: relative;
}
.table-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: var(--section-color, var(--cyan));
  opacity: 0.75;
}
.no-results {
  display: none;
  padding: 48px;
  text-align: center;
  color: var(--text3);
  font-size: 14px;
}

/* ── Table ──────────────────────────────────────────── */
.ranking-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.ranking-table thead tr {
  background: rgba(255,255,255,0.022);
}
.ranking-table th {
  padding: 11px 16px;
  text-align: left;
  color: var(--text3);
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.9px;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
  user-select: none;
}
.ranking-table th.sortable {
  cursor: pointer;
  transition: color 0.15s;
}
.ranking-table th.sortable:hover { color: var(--text2); }
.ranking-table th.sort-asc  { color: var(--section-color, var(--cyan)); }
.ranking-table th.sort-asc::after  { content: ' ↑'; }
.ranking-table th.sort-desc { color: var(--section-color, var(--cyan)); }
.ranking-table th.sort-desc::after { content: ' ↓'; }

.ranking-table td {
  padding: 11px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.038);
  vertical-align: middle;
}
.ranking-table tbody tr:last-child td { border-bottom: none; }

/* Row hover */
.ranking-table tbody tr { transition: background 0.15s; }
.ranking-table tbody tr:hover td { background: rgba(255,255,255,0.028); }
.ranking-table tbody tr:hover .rank-n {
  border-color: var(--section-color, var(--cyan));
  color: var(--section-color, var(--cyan));
  box-shadow: 0 0 14px color-mix(in srgb, var(--section-color, var(--cyan)) 45%, transparent);
}
.ranking-table tbody tr:hover .repo-link { color: var(--section-color, var(--cyan)); }

/* Row enter animation */
@keyframes rowIn {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}
.row-in { animation: rowIn 0.4s cubic-bezier(0.22,1,0.36,1) both; }

/* ── Rank badges ────────────────────────────────────── */
.col-rank { width: 52px; text-align: center; }
.rank-n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.11);
  font-size: 12px; font-weight: 700;
  color: var(--text3);
  transition: all 0.22s;
}
.rank-n.gold   { border-color: #f59e0b; color: #fcd34d; background: rgba(252,211,77,0.12); box-shadow: 0 0 14px rgba(252,211,77,0.28); }
.rank-n.silver { border-color: #94a3b8; color: #e2e8f0; background: rgba(226,232,240,0.08); box-shadow: 0 0 10px rgba(226,232,240,0.15); }
.rank-n.bronze { border-color: #b45309; color: #fb923c; background: rgba(180,83,9,0.12);   box-shadow: 0 0 10px rgba(180,83,9,0.22); }

/* ── Repository cell ────────────────────────────────── */
.col-repo { min-width: 155px; max-width: 215px; }
.repo-link {
  display: block;
  font-weight: 600; color: var(--text);
  transition: color 0.15s;
  word-break: break-word;
  line-height: 1.3; margin-bottom: 2px;
}
.repo-owner {
  display: block;
  font-size: 11px; color: var(--text3);
}

/* ── Stars / Forks ──────────────────────────────────── */
.col-stars, .col-forks { white-space: nowrap; }
.stars-val {
  display: inline-flex; align-items: center; gap: 5px;
  font-weight: 600; color: var(--star); font-size: 13px;
}
.stars-val::before { content: '⭐'; font-size: 11px; }
.forks-val {
  display: inline-flex; align-items: center; gap: 5px;
  color: var(--text3); font-size: 13px;
}
.forks-val::before { content: '🍴'; font-size: 11px; }

/* ── Language badges ────────────────────────────────── */
.lang-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 9px 2px 7px;
  border-radius: 12px;
  font-size: 11px; font-weight: 500;
  background: var(--glass2);
  color: var(--text2);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.lang-badge::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--lang-dot, var(--text3));
  flex-shrink: 0;
}
/* Language colors — dot */
.lang-badge[data-lang="Python"]           { --lang-dot:#3b82f6; background:rgba(59,130,246,.1);  color:#93c5fd; border-color:rgba(59,130,246,.22); }
.lang-badge[data-lang="JavaScript"]       { --lang-dot:#fbbf24; background:rgba(251,191,36,.1);  color:#fde68a; border-color:rgba(251,191,36,.22); }
.lang-badge[data-lang="TypeScript"]       { --lang-dot:#60a5fa; background:rgba(96,165,250,.1);  color:#bfdbfe; border-color:rgba(96,165,250,.22); }
.lang-badge[data-lang="Java"]             { --lang-dot:#fb923c; background:rgba(251,146,60,.1);  color:#fed7aa; border-color:rgba(251,146,60,.22); }
.lang-badge[data-lang="C++"]              { --lang-dot:#f472b6; background:rgba(244,114,182,.1); color:#fbcfe8; border-color:rgba(244,114,182,.22); }
.lang-badge[data-lang="C"]               { --lang-dot:#94a3b8; background:rgba(148,163,184,.1); color:#e2e8f0; border-color:rgba(148,163,184,.22); }
.lang-badge[data-lang="C#"]              { --lang-dot:#4ade80; background:rgba(74,222,128,.1);  color:#bbf7d0; border-color:rgba(74,222,128,.22); }
.lang-badge[data-lang="Go"]              { --lang-dot:#22d3ee; background:rgba(34,211,238,.1);  color:#a5f3fc; border-color:rgba(34,211,238,.22); }
.lang-badge[data-lang="Rust"]            { --lang-dot:#fb923c; background:rgba(251,146,60,.1);  color:#fed7aa; border-color:rgba(251,146,60,.22); }
.lang-badge[data-lang="Shell"]           { --lang-dot:#4ade80; background:rgba(74,222,128,.1);  color:#bbf7d0; border-color:rgba(74,222,128,.22); }
.lang-badge[data-lang="Ruby"]            { --lang-dot:#f87171; background:rgba(248,113,113,.1); color:#fecaca; border-color:rgba(248,113,113,.22); }
.lang-badge[data-lang="HTML"]            { --lang-dot:#fb923c; background:rgba(251,146,60,.1);  color:#fed7aa; border-color:rgba(251,146,60,.22); }
.lang-badge[data-lang="CSS"]             { --lang-dot:#c084fc; background:rgba(192,132,252,.1); color:#e9d5ff; border-color:rgba(192,132,252,.22); }
.lang-badge[data-lang="Markdown"]        { --lang-dot:#60a5fa; background:rgba(96,165,250,.1);  color:#bfdbfe; border-color:rgba(96,165,250,.22); }
.lang-badge[data-lang="Jupyter Notebook"]{ --lang-dot:#fb923c; background:rgba(251,146,60,.1);  color:#fed7aa; border-color:rgba(251,146,60,.22); }
.lang-badge[data-lang="R"]               { --lang-dot:#60a5fa; background:rgba(96,165,250,.1);  color:#bfdbfe; border-color:rgba(96,165,250,.22); }
.lang-badge[data-lang="Swift"]           { --lang-dot:#fb923c; background:rgba(251,146,60,.1);  color:#fed7aa; border-color:rgba(251,146,60,.22); }
.lang-badge[data-lang="Kotlin"]          { --lang-dot:#a78bfa; background:rgba(167,139,250,.1); color:#ddd6fe; border-color:rgba(167,139,250,.22); }
.lang-badge[data-lang="Dart"]            { --lang-dot:#34d399; background:rgba(52,211,153,.1);  color:#a7f3d0; border-color:rgba(52,211,153,.22); }
.lang-badge[data-lang="Lua"]             { --lang-dot:#60a5fa; background:rgba(96,165,250,.1);  color:#bfdbfe; border-color:rgba(96,165,250,.22); }
.lang-badge[data-lang="PHP"]             { --lang-dot:#a78bfa; background:rgba(167,139,250,.1); color:#ddd6fe; border-color:rgba(167,139,250,.22); }
.lang-badge[data-lang="Scala"]           { --lang-dot:#f87171; background:rgba(248,113,113,.1); color:#fecaca; border-color:rgba(248,113,113,.22); }
.lang-badge[data-lang="TeX"]             { --lang-dot:#60a5fa; background:rgba(96,165,250,.1);  color:#bfdbfe; border-color:rgba(96,165,250,.22); }
.lang-badge[data-lang="MATLAB"]          { --lang-dot:#fbbf24; background:rgba(251,191,36,.1);  color:#fde68a; border-color:rgba(251,191,36,.22); }
.lang-badge[data-lang="Vue"]             { --lang-dot:#34d399; background:rgba(52,211,153,.1);  color:#a7f3d0; border-color:rgba(52,211,153,.22); }

/* ── Description ────────────────────────────────────── */
.col-desc {
  max-width: 290px;
  font-size: 12px;
  color: var(--text2);
  line-height: 1.55;
}

/* ── Commit date ────────────────────────────────────── */
.col-commit {
  white-space: nowrap;
  font-size: 12px; color: var(--text3);
  font-family: var(--font-mono);
}

/* ── Language Toggle ────────────────────────────────── */
[data-lang="zh"] .text-en { display: none !important; }
[data-lang="en"] .text-zh { display: none !important; }

/* ── Back to top ────────────────────────────────────── */
.back-to-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--grad);
  border: none; border-radius: 50%;
  color: #fff; font-size: 18px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transform: scale(0.75) translateY(10px);
  transition: all 0.28s cubic-bezier(0.22,1,0.36,1);
  z-index: 300;
  box-shadow: 0 4px 28px rgba(34,211,238,0.38);
}
.back-to-top.visible {
  opacity: 1; pointer-events: auto;
  transform: scale(1) translateY(0);
}
.back-to-top:hover { transform: scale(1.12) translateY(-2px); }

/* ── Sidebar overlay (mobile) ───────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 199;
  backdrop-filter: blur(4px);
}
.sidebar-overlay.active { display: block; }

/* ── Page header (Top100 pages) ─────────────────────── */
.page-hd {
  padding-bottom: 36px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.back-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text2); font-size: 13px;
  margin-bottom: 22px;
  transition: color 0.15s; text-decoration: none;
}
.back-link:hover { color: var(--cyan); text-decoration: none; }
.back-link::before { content: '←'; }

.page-title {
  font-size: 23px; font-weight: 800;
  color: var(--text); margin-bottom: 8px;
  display: flex; align-items: center; gap: 12px;
}
.page-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--section-bg, rgba(34,211,238,0.1));
  border: 1px solid var(--section-border, rgba(34,211,238,0.2));
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; flex-shrink: 0;
}
.page-sub { color: var(--text2); font-size: 14px; margin-bottom: 24px; }
.page-meta {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
}
.page-stat {
  display: flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--text2);
  background: var(--glass);
  border: 1px solid var(--border);
  padding: 5px 14px; border-radius: 20px;
}

/* ── Scrollbar ──────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.09); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.17); }

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 1100px) {
  .col-forks, .col-issues { display: none; }
  .content { padding: 32px 28px 72px; }
}
@media (max-width: 900px) {
  .section-hd { flex-direction: column; }
  .section-actions { flex-direction: row; align-items: center; width: 100%; }
}
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 6px 0 48px rgba(0,0,0,0.7); }
  .main { margin-left: 0; }
  .sidebar-toggle { display: flex; }
  .content { padding: 22px 18px 68px; }
  .topbar { padding: 0 18px; }
  .hero-title { font-size: 26px; }
  .hero-stats { flex-direction: column; }
  .hero-stat { border-right: none; border-bottom: 1px solid var(--border); }
  .hero-stat:last-child { border-bottom: none; }
}
@media (max-width: 520px) {
  .col-language { display: none; }
  .crumb-root, .crumb-sep { display: none; }
  .table-search { width: 130px; }
  .table-search:focus { width: 155px; }
}