:root {
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --radius: 18px;
  --maxw: 1180px;
  --ease: cubic-bezier(.4, 0, .2, 1);
}

/* ---------- HAPPY (warm, bright) ---------- */
html[data-mood="happy"] {
  --bg: #fff7ec;
  --bg-2: #ffe9c9;
  --ink: #2a1d0e;
  --ink-soft: #715c41;
  --card: #ffffff;
  --card-border: #f0dcbd;
  --accent: #f4a02a;
  --accent-2: #ec6f3d;
  --accent-ink: #4a2d09;
  --glow: rgba(244, 160, 42, .35);
  --shadow: 0 14px 38px -20px rgba(160, 96, 12, .55);
  --pill: #fff2dc;
  --pill-ink: #9a5a16;
}

/* ---------- SAD (cool, dim) ---------- */
html[data-mood="sad"] {
  --bg: #0e1626;
  --bg-2: #16243b;
  --ink: #e7edf6;
  --ink-soft: #9fb0c8;
  --card: #16223a;
  --card-border: #243651;
  --accent: #5b8fc9;
  --accent-2: #7d6fb0;
  --accent-ink: #eaf2ff;
  --glow: rgba(91, 143, 201, .3);
  --shadow: 0 16px 42px -22px rgba(0, 0, 0, .8);
  --pill: #1d2c46;
  --pill-ink: #9fc0e6;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  transition: background .7s var(--ease), color .7s var(--ease);
  overflow-x: hidden;
}

.ambient {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(1100px 540px at 78% -8%, var(--bg-2), transparent 70%),
    radial-gradient(820px 480px at 6% 0%, var(--glow), transparent 65%);
  opacity: .9;
  transition: background .7s var(--ease);
}

/* ---------- header ---------- */
.site-header {
  max-width: var(--maxw); margin: 0 auto;
  padding: 22px clamp(16px, 4vw, 34px);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 13px; }
.brand-glyph {
  font-size: 30px; line-height: 1;
  filter: drop-shadow(0 3px 10px var(--glow));
  transition: transform .6s var(--ease);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.12; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 23px; letter-spacing: -.01em; }
.brand-tag { font-size: 12.5px; color: var(--ink-soft); font-weight: 500; }

.header-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-soft); }
.live-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 var(--glow); animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--glow); }
  70% { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.refresh-btn {
  border: 1px solid var(--card-border); background: var(--card); color: var(--ink);
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer; font-size: 15px;
  transition: transform .3s var(--ease), background .3s; 
}
.refresh-btn:hover { transform: rotate(90deg); }
.refresh-btn.spin { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- stage / toggle ---------- */
.stage { max-width: var(--maxw); margin: 0 auto; padding: 18px clamp(16px, 4vw, 34px) 6px; text-align: center; }
.stage-title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(26px, 5vw, 44px); letter-spacing: -.02em; line-height: 1.08;
  margin-bottom: 22px;
}
.toggle {
  position: relative; display: inline-flex; gap: 4px; padding: 6px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 999px; box-shadow: var(--shadow);
}
.toggle-thumb {
  position: absolute; top: 6px; left: 6px; bottom: 6px; width: calc(50% - 6px);
  border-radius: 999px; background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: transform .5s var(--ease); z-index: 0;
}
html[data-mood="sad"] .toggle-thumb { transform: translateX(100%); }
.toggle-opt {
  position: relative; z-index: 1; border: 0; background: transparent; cursor: pointer;
  font-family: var(--font-body); font-weight: 600; font-size: 16px; color: var(--ink-soft);
  padding: 11px 30px; border-radius: 999px; display: inline-flex; align-items: center; gap: 9px;
  transition: color .4s var(--ease);
}
.toggle-opt .opt-emoji { font-size: 18px; }
.toggle-opt.is-active { color: #fff; }
html[data-mood="sad"] .toggle-opt.is-active { color: var(--accent-ink); }
.stage-sub { margin-top: 18px; color: var(--ink-soft); font-size: 15px; min-height: 22px; transition: opacity .3s; }

/* ---------- feed grid ---------- */
.feed {
  max-width: var(--maxw); margin: 18px auto 0; padding: 10px clamp(16px, 4vw, 34px) 40px;
  display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
}
.card {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  box-shadow: var(--shadow); text-decoration: none; color: inherit;
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
  animation: rise .5s var(--ease) both;
}
.card:hover { transform: translateY(-5px); border-color: var(--accent); }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.card-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: linear-gradient(135deg, var(--bg-2), var(--card)); }
.card-media::after { content: '🌍'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 40px; opacity: .4; }
.card-media img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .5s var(--ease), transform .6s var(--ease); }
.card:hover .card-media img { transform: scale(1.06); }
.card-flag { position: absolute; top: 10px; left: 10px; background: rgba(0,0,0,.55); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 9px; border-radius: 999px; backdrop-filter: blur(4px); display: inline-flex; gap: 5px; align-items: center; }

.card-body { padding: 15px 16px 16px; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.card-title { font-family: var(--font-display); font-weight: 600; font-size: 18px; line-height: 1.28; letter-spacing: -.01em; }
.card-foot { margin-top: auto; display: flex; align-items: center; gap: 9px; font-size: 12.5px; color: var(--ink-soft); }
.src-chip { width: 22px; height: 22px; border-radius: 6px; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; font-size: 11px; color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2)); text-transform: uppercase; flex: none; }
.src-name { font-weight: 600; color: var(--ink); }
.dot-sep { opacity: .5; }

/* ---------- states ---------- */
.state { grid-column: 1 / -1; text-align: center; padding: 60px 20px; color: var(--ink-soft); }
.state .big { font-size: 44px; margin-bottom: 12px; }
.skeleton { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.skeleton .sk-media { aspect-ratio: 16/9; background: linear-gradient(100deg, var(--card) 30%, var(--bg-2) 50%, var(--card) 70%); background-size: 220% 100%; animation: shimmer 1.4s infinite; }
.skeleton .sk-line { height: 13px; margin: 14px 16px; border-radius: 6px; background: linear-gradient(100deg, var(--card) 30%, var(--bg-2) 50%, var(--card) 70%); background-size: 220% 100%; animation: shimmer 1.4s infinite; }
.skeleton .sk-line.short { width: 50%; }
@keyframes shimmer { to { background-position: -220% 0; } }

/* ---------- footer ---------- */
.site-footer { max-width: var(--maxw); margin: 0 auto; padding: 14px clamp(16px,4vw,34px) 36px; text-align: center; font-size: 12.5px; color: var(--ink-soft); }
.site-footer a { color: var(--accent); text-decoration: none; font-weight: 600; }
.footer-sep { margin: 0 8px; opacity: .5; }

@media (max-width: 540px) {
  .brand-tag { display: none; }
  .toggle-opt { padding: 10px 22px; font-size: 15px; }
  .feed { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }