:root {
  --bg: #0b0f14;
  --card: #141b24;
  --card2: #1a2330;
  --text: #e8eef7;
  --muted: #8b9bb0;
  --accent: #3dd6c6;
  --accent2: #5b8cff;
  --warn: #f0a040;
  --danger: #ff6b7a;
  --radius: 14px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  font-family: "PingFang HK", "Noto Sans TC", "Helvetica Neue", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
}
body { padding: calc(12px + var(--safe-t)) 16px calc(24px + var(--safe-b)); }

a { color: var(--accent); text-decoration: none; }
.muted { color: var(--muted); font-size: 0.92rem; line-height: 1.4; }
.top h1 { margin: 0.35rem 0 0.25rem; font-size: 1.55rem; }
.back { font-size: 0.9rem; color: var(--muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  background: var(--card2);
  color: var(--text);
}
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #061018; }
.btn.ghost { background: transparent; border: 1px solid #2a3545; }
.btn.small { padding: 0.4rem 0.85rem; font-size: 0.85rem; }

.login-page {
  min-height: 100dvh;
  display: grid;
  place-items: center;
}
.card {
  width: min(100%, 380px);
  background: var(--card);
  border: 1px solid #243041;
  border-radius: var(--radius);
  padding: 1.4rem 1.25rem 1.5rem;
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
.login-card h1 { margin-top: 0; }
.login-card label { display: block; margin: 1rem 0 0.35rem; font-size: 0.85rem; color: var(--muted); }
.login-card input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: 10px;
  border: 1px solid #2a3545;
  background: #0e141c;
  color: var(--text);
  font: inherit;
}
.login-card button { width: 100%; margin-top: 1.1rem; }

.modules { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.25rem; }
.mod {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1rem;
  background: var(--card);
  border: 1px solid #243041;
  border-radius: var(--radius);
  color: inherit;
}
.mod.live:active { transform: scale(0.985); }
.mod.soon { opacity: 0.55; }
.mod-icon { font-size: 1.6rem; width: 2.2rem; text-align: center; }
.mod-body { flex: 1; display: flex; flex-direction: column; gap: 0.2rem; min-width: 0; }
.mod-body strong { font-size: 1.05rem; }
.mod-body span { font-size: 0.85rem; color: var(--muted); }
.badge {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: #2a3340;
  color: var(--muted);
  white-space: nowrap;
}
.badge.ok { background: rgba(61, 214, 198, 0.18); color: var(--accent); }

.foot { margin-top: 2rem; opacity: 0.8; }

.ex-list { display: flex; flex-direction: column; gap: 0.55rem; margin-top: 1rem; }
.ex {
  display: block;
  padding: 0.95rem 1rem;
  background: var(--card);
  border: 1px solid #243041;
  border-radius: 12px;
  color: inherit;
}
.ex strong { display: block; margin-bottom: 0.2rem; }
.ex span { font-size: 0.82rem; color: var(--muted); }
.ex.skeleton {
  border-color: rgba(91, 140, 255, 0.45);
  background: linear-gradient(135deg, #141b24, #152033);
}
.ex:active { border-color: var(--accent); }

/* Full-screen tracker */
.track-page {
  padding: 0;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.track-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: calc(8px + var(--safe-t)) 10px 8px;
  background: #0e141c;
  border-bottom: 1px solid #243041;
  flex-shrink: 0;
}
.track-label { flex: 1; font-weight: 600; font-size: 0.95rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stats { font-size: 0.78rem; color: var(--muted); white-space: nowrap; }
.iframe-wrap { flex: 1; min-height: 0; background: #000; }
.iframe-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: #000;
}

.switcher {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding: 8px 10px calc(8px + var(--safe-b));
  background: #0e141c;
  border-top: 1px solid #243041;
  flex-shrink: 0;
  -webkit-overflow-scrolling: touch;
}
.switcher button {
  flex: 0 0 auto;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid #2a3545;
  background: var(--card2);
  color: var(--text);
  font: inherit;
  font-size: 0.8rem;
}
.switcher button.active {
  border-color: var(--accent);
  color: var(--accent);
}