/* ═══════════════════════════════════════════
   Timeliner — Styles
   ═══════════════════════════════════════════ */

/* ─── Reset & Custom Properties ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:            #06061a;
  --bg-surface:    #0c0f1a;
  --bg-card:       rgba(255,255,255,0.025);
  --bg-card-hover: rgba(255,255,255,0.05);
  --border:        rgba(255,255,255,0.06);
  --border-hover:  rgba(255,255,255,0.12);
  --text:          #d4d8e0;
  --text-bright:   #eef0f4;
  --text-secondary:#6b7280;
  --text-muted:    #4b5563;
  --accent:        #64ffda;
  --accent-dim:    rgba(100,255,218,0.08);

  --cat-science:     #00d4ff;
  --cat-music:       #ff6b9d;
  --cat-art:         #ffd93d;
  --cat-literature:  #6bcb77;
  --cat-film:        #ff8c42;
  --cat-politics:    #4d96ff;
  --cat-philosophy:  #a78bfa;
  --cat-exploration: #2dd4bf;
  --cat-sports:      #f87171;
  --cat-business:    #fbbf24;
  --cat-activism:    #f472b6;

  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --ease:         cubic-bezier(.4,0,.2,1);
  --ease-out:     cubic-bezier(0,0,.2,1);
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

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

::selection { background: rgba(100,255,218,.25); color: #fff; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ─── Header ─── */
.header {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  background: rgba(6,6,26,.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo-link { display: flex; align-items: center; gap: 8px; text-decoration: none; color: inherit; }
.logo-icon { font-size: 22px; line-height: 1; }
h1.logo-text, .logo-text {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700; letter-spacing: 4px;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0; line-height: 1.2;
}
.tagline { font-size: 12px; color: var(--text-muted); letter-spacing: .5px; }

/* ─── Hero / Fact Card ─── */
.hero {
  padding: 56px 0 36px;
  background: radial-gradient(ellipse at 50% -20%, rgba(100,255,218,.04) 0%, transparent 70%);
}

.fact-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 40px;
  max-width: 700px;
  margin: 0 auto;
  overflow: hidden;
}
.fact-card::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: 17px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(100,255,218,.35), transparent 45%, transparent 55%, rgba(167,139,250,.35));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.fact-label {
  font-family: var(--font-display);
  font-size: 10px; font-weight: 600; letter-spacing: 3px;
  color: var(--accent); margin-bottom: 20px;
}

/* Timeline visual inside fact card */
.fact-visual { margin-bottom: 20px; }
.fact-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.fact-bar-label {
  font-size: 11px; font-weight: 500; color: var(--text-secondary);
  min-width: 110px; text-align: right;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.fact-bar-track {
  flex: 1; height: 7px;
  background: rgba(255,255,255,.03);
  border-radius: 4px;
  position: relative; overflow: hidden;
}
.fact-bar-fill {
  position: absolute; top: 0; height: 100%;
  border-radius: 4px;
  animation: barGrow .7s var(--ease-out) both;
}
@keyframes barGrow { from { transform: scaleX(0); transform-origin: left; } to { transform: scaleX(1); transform-origin: left; } }
.fact-bar-years { font-size: 10px; color: var(--text-muted); min-width: 68px; font-variant-numeric: tabular-nums; }
.fact-overlap-label {
  text-align: center; font-size: 11px; color: var(--accent);
  font-weight: 600; margin-top: 4px; letter-spacing: .3px;
}

.fact-text {
  font-family: var(--font-display);
  font-size: 21px; font-weight: 600; line-height: 1.4;
  color: var(--text-bright); margin-bottom: 6px;
}
.fact-extra {
  font-size: 14px; color: var(--text-secondary); line-height: 1.5;
  margin-bottom: 24px;
}

.fact-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 15px;
  border: none; border-radius: 8px;
  font-family: var(--font-body); font-size: 13px; font-weight: 500;
  cursor: pointer;
  transition: all .2s var(--ease);
  white-space: nowrap;
}
.btn-ghost {
  background: rgba(255,255,255,.04);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: rgba(255,255,255,.07); color: var(--text); border-color: var(--border-hover); }
.btn-accent {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(100,255,218,.15);
}
.btn-accent:hover { background: rgba(100,255,218,.13); border-color: rgba(100,255,218,.25); }
.btn-primary { background: var(--accent); color: #06061a; font-weight: 600; border: none; }
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }

/* ─── Explorer ─── */
.explorer { padding: 36px 0 80px; }
.explorer-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; gap: 16px; flex-wrap: wrap;
}
.explorer-title { font-family: var(--font-display); font-size: 22px; font-weight: 700; }
.highlight { color: var(--accent); }

.search-box { position: relative; width: 260px; }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.search-input {
  width: 100%; padding: 9px 12px 9px 38px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); font-family: var(--font-body); font-size: 13px;
  outline: none; transition: all .2s var(--ease);
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus { border-color: rgba(100,255,218,.3); box-shadow: 0 0 0 3px rgba(100,255,218,.06); }

/* ─── Filters ─── */
.filters { display: flex; gap: 7px; margin-bottom: 24px; flex-wrap: wrap; }
.filter-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 13px; border: 1px solid var(--border); border-radius: 20px;
  background: transparent; color: var(--text-secondary);
  font-family: var(--font-body); font-size: 12px; cursor: pointer;
  transition: all .2s var(--ease); white-space: nowrap;
}
.filter-pill:hover { border-color: var(--border-hover); color: var(--text); background: var(--bg-card); }
.filter-pill.active { background: var(--bg-card-hover); border-color: var(--border-hover); color: var(--text-bright); }
.filter-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }

/* ─── People Grid ─── */
.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px;
}

.person-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 16px; cursor: pointer;
  transition: all .2s var(--ease);
  position: relative; overflow: hidden;
  animation: fadeUp .35s var(--ease-out) both;
}
.person-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--card-accent, var(--accent)); opacity: .5;
  transition: opacity .2s;
}
.person-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,0,0,.25);
}
.person-card:hover::before { opacity: 1; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.person-name { font-family: var(--font-display); font-size: 14px; font-weight: 600; color: var(--text-bright); margin-bottom: 2px; }
.person-years { font-size: 12px; color: var(--text-secondary); margin-bottom: 5px; font-variant-numeric: tabular-nums; }
.person-known { font-size: 11px; color: var(--text-muted); line-height: 1.4; }
.person-cat {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 9px; font-weight: 600; text-transform: uppercase; letter-spacing: .8px;
  margin-top: 7px; opacity: .6;
}

.no-results { text-align: center; color: var(--text-muted); padding: 60px 0; font-size: 14px; }

/* ─── Detail Panel (overlay) ─── */
.overlay {
  position: fixed; inset: 0; z-index: 200;
  display: flex; justify-content: flex-end;
  pointer-events: none;
}
.overlay.open { pointer-events: auto; }
.overlay-bg {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  opacity: 0; transition: opacity .3s var(--ease);
}
.overlay.open .overlay-bg { opacity: 1; }

.detail-panel {
  width: 500px; max-width: 100vw; height: 100%;
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  overflow-y: auto; position: relative;
  transform: translateX(100%);
  transition: transform .35s var(--ease-out);
}
.overlay.open .detail-panel { transform: translateX(0); }

.detail-close {
  position: sticky; top: 0; float: right; margin: 14px 14px 0 0;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px;
  padding: 5px; color: var(--text-secondary); cursor: pointer; z-index: 10;
  transition: all .2s var(--ease);
}
.detail-close:hover { color: var(--text-bright); border-color: var(--border-hover); }

.detail-body { padding: 28px 24px 40px; clear: both; }

.detail-name {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 700; color: var(--text-bright); margin-bottom: 2px;
}
.detail-years { font-size: 14px; color: var(--text-secondary); margin-bottom: 4px; font-variant-numeric: tabular-nums; }
.detail-known { font-size: 14px; color: var(--text-muted); margin-bottom: 8px; }
.detail-cat-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px;
  padding: 3px 10px; border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 24px;
}
.detail-cat-dot { width: 7px; height: 7px; border-radius: 50%; }

.detail-section-title {
  font-family: var(--font-display);
  font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--accent); text-transform: uppercase;
  margin-bottom: 14px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.contemp-list { list-style: none; }
.contemp-item {
  padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.03);
  display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; align-items: start;
  cursor: pointer; transition: background .15s;
  margin: 0 -8px; padding-left: 8px; padding-right: 8px; border-radius: 6px;
}
.contemp-item:hover { background: rgba(255,255,255,.025); }
.contemp-name { font-size: 13px; font-weight: 500; color: var(--text-bright); }
.contemp-known { font-size: 11px; color: var(--text-muted); grid-column: 1; }
.contemp-overlap {
  font-size: 12px; font-weight: 600; color: var(--accent);
  text-align: right; white-space: nowrap;
}
.contemp-bar-track {
  grid-column: 1 / -1;
  height: 4px; background: rgba(255,255,255,.03); border-radius: 2px;
  overflow: hidden; margin-top: 4px;
}
.contemp-bar-fill { height: 100%; border-radius: 2px; opacity: .6; }

.contemp-share-btn {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  padding: 3px 8px; font-size: 10px; color: var(--text-muted);
  cursor: pointer; transition: all .15s; margin-top: 4px;
  font-family: var(--font-body); display: inline-flex; align-items: center; gap: 3px;
}
.contemp-share-btn:hover { color: var(--accent); border-color: rgba(100,255,218,.3); }

/* ─── Toast ─── */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--accent); color: #06061a;
  padding: 10px 22px; border-radius: 8px;
  font-size: 13px; font-weight: 600;
  opacity: 0; pointer-events: none;
  transition: all .3s var(--ease);
  z-index: 999;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ─── Footer ─── */
.footer {
  padding: 30px 0;
  border-top: 1px solid var(--border);
  text-align: center; font-size: 12px; color: var(--text-muted);
}
.footer-credit { margin-top: 6px; }
.footer a { color: var(--text-secondary); text-decoration: none; transition: color .2s; }
.footer a:hover { color: var(--accent); }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .header-inner { flex-direction: column; gap: 4px; align-items: flex-start; }
  .hero { padding: 36px 0 24px; }
  .fact-card { padding: 24px 20px; }
  .fact-text { font-size: 18px; }
  .fact-bar-label { min-width: 80px; font-size: 10px; }
  .explorer-header { flex-direction: column; align-items: stretch; }
  .search-box { width: 100%; }
  .explorer-title { font-size: 18px; }
  .people-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .detail-panel { width: 100%; }
  .detail-body { padding: 20px 16px 30px; }
  .detail-name { font-size: 22px; }
}

@media (max-width: 480px) {
  .people-grid { grid-template-columns: 1fr; }
  .fact-actions { flex-direction: column; }
  .fact-actions .btn { justify-content: center; }
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.18); }

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}