:root {
  color-scheme: dark;
  --bg: #090d18;
  --surface: #111827;
  --surface-2: #182235;
  --surface-3: #202c42;
  --text: #f2f5fa;
  --muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.18);
  --accent: #6ee7b7;
  --danger: #fb7185;
  --warning: #fbbf24;
  --claude: #f59e0b;
  --codex: #34d399;
  --grok: #a78bfa;
  --ollama: #60a5fa;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #eef2f7;
    --surface: #ffffff;
    --surface-2: #f7f9fc;
    --surface-3: #edf2f7;
    --text: #172033;
    --muted: #64748b;
    --border: rgba(100, 116, 139, 0.2);
    --accent: #059669;
    --shadow: 0 16px 36px rgba(30, 41, 59, 0.1);
  }
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% -10%, rgba(52, 211, 153, 0.14), transparent 34rem),
    radial-gradient(circle at 90% 2%, rgba(96, 165, 250, 0.12), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans TC", sans-serif;
}

button { font: inherit; }
button:focus-visible { outline: 3px solid rgba(110, 231, 183, 0.45); outline-offset: 2px; }

.app-shell {
  width: min(1600px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 28px 24px 108px;
}

.topbar,
.section-heading,
.trend-heading,
.event-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

.topbar { margin-bottom: 26px; }

.eyebrow {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(1.65rem, 4vw, 2.35rem); letter-spacing: -0.04em; }
h2 { margin-bottom: 0; font-size: clamp(1.3rem, 3vw, 1.75rem); letter-spacing: -0.025em; }
h3 { margin-bottom: 0; }

.sync-state {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  color: var(--muted);
  font-size: 0.82rem;
}

.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warning); box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.12); }
.sync-state.ok .status-dot { background: var(--accent); box-shadow: 0 0 0 4px rgba(110, 231, 183, 0.12); }
.sync-state.error .status-dot { background: var(--danger); box-shadow: 0 0 0 4px rgba(251, 113, 133, 0.12); }

.topbar-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.trigger-button {
  display: inline-flex; align-items: center; gap: 7px;
  min-height: 38px; padding: 0 15px;
  border: 1px solid var(--border); border-radius: 999px;
  background: var(--surface-2); color: var(--text);
  font-size: 0.82rem; font-weight: 700; cursor: pointer;
  transition: opacity 0.15s, border-color 0.15s;
}
.trigger-button:hover:not(:disabled) { border-color: var(--accent); }
.trigger-button:disabled { opacity: 0.45; cursor: not-allowed; }
.trigger-icon { font-size: 0.95rem; }

.global-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
  padding: 16px 18px;
  border: 1px solid rgba(251, 113, 133, 0.35);
  border-radius: 16px;
  background: rgba(251, 113, 133, 0.08);
}

.global-notice p { margin: 4px 0 0; color: var(--muted); font-size: 0.88rem; }
.secondary-button { min-height: 44px; border: 1px solid var(--border); border-radius: 11px; padding: 0 16px; background: var(--surface-2); color: var(--text); cursor: pointer; }

.section-heading { margin-bottom: 16px; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 0.82rem; text-align: right; }

#view-combined > #trendsContent { margin-top: 32px; }

.source-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }

.source-card,
.trend-card,
.event-card,
.recommendation {
  border: 1px solid var(--border);
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 95%, var(--source-color, transparent)), var(--surface));
  box-shadow: var(--shadow);
}

.source-card { position: relative; padding: 22px; border-radius: 22px; overflow: hidden; }
.source-card::after { content: ""; position: absolute; width: 140px; height: 140px; right: -58px; top: -62px; border-radius: 50%; background: var(--source-color); opacity: 0.1; filter: blur(3px); }
.source-card.failed { --source-color: var(--muted) !important; }
.source-card.low { border-color: rgba(251, 113, 133, 0.55); }

.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.source-name { display: flex; align-items: center; gap: 10px; min-width: 0; font-weight: 800; letter-spacing: 0.02em; }
.source-mark { width: 10px; height: 10px; border-radius: 3px; background: var(--source-color); transform: rotate(45deg); flex: 0 0 auto; }
.origin { margin-top: 5px; color: var(--muted); font-size: 0.74rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.remaining-number { margin: 12px 0 3px; font-size: clamp(2.4rem, 7vw, 3.5rem); font-variant-numeric: tabular-nums; font-weight: 760; letter-spacing: -0.065em; }
.quota-forecast { float: right; position: relative; z-index: 1; max-width: 58%; margin: 10px 0 8px 10px; text-align: right; }
.quota-forecast span, .quota-forecast small { display: block; color: var(--muted); font-size: 0.7rem; }
.quota-forecast strong { display: block; margin: 4px 0; font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.quota-forecast.fast strong { color: var(--danger); }
.quota-forecast.unavailable strong { color: var(--muted); }
.source-card .progress, .source-card .error-copy { clear: both; }
.remaining-label { color: var(--muted); font-size: 0.78rem; }
.progress { height: 10px; margin: 14px 0 12px; border-radius: 99px; background: var(--surface-3); overflow: hidden; }
.progress > i { display: block; width: var(--progress, 0%); height: 100%; border-radius: inherit; background: var(--source-color); }
.card-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; margin: 0 0 12px; }
.card-metric { min-width: 0; }
.card-metric span { display: block; color: var(--muted); font-size: 0.7rem; letter-spacing: 0.04em; }
.card-metric strong { display: block; margin-top: 2px; font-size: 1.08rem; font-variant-numeric: tabular-nums; font-weight: 700; letter-spacing: -0.03em; }
.card-metric strong.danger { color: var(--danger); }
.card-foot { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: 0.78rem; }
.card-foot strong { color: var(--text); font-weight: 650; }
.error-copy { margin: 18px 0 14px; color: var(--danger); line-height: 1.5; }

.recommendation { display: flex; align-items: center; gap: 16px; margin-bottom: 8px; padding: 18px 20px; border-radius: 18px; }
.recommendation-icon { display: grid; place-items: center; flex: 0 0 42px; height: 42px; border-radius: 50%; background: rgba(110, 231, 183, 0.13); color: var(--accent); font-size: 1.3rem; }
.recommendation p:last-child { margin: 4px 0 0; color: var(--muted); font-size: 0.83rem; }

.pick-alternates { display: grid; gap: 8px; margin-bottom: 16px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); }
.pick-alternates[hidden] { display: none; }
.pick-row { display: flex; align-items: center; gap: 12px; min-height: 42px; padding: 5px 10px; border-radius: 10px; background: linear-gradient(145deg, color-mix(in srgb, var(--surface) 95%, var(--source-color, transparent)), var(--surface-2)); font-size: 0.82rem; }
.pick-rank { flex: 0 0 auto; min-width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; background: var(--surface-3); color: var(--muted); font-weight: 800; font-size: 0.72rem; }
.pick-name { display: flex; align-items: center; gap: 9px; min-width: 0; flex: 1 1 auto; font-weight: 700; }
.pick-budget { flex: 0 0 auto; color: var(--muted); font-variant-numeric: tabular-nums; }

@media (max-width: 440px) {
  .pick-row { flex-wrap: wrap; row-gap: 4px; }
  .pick-budget { margin-left: 34px; }
  .chart-legend .legend-extra { display: none; }
}

.pace-label { display: inline-flex; align-items: center; flex: 0 0 auto; min-height: 30px; padding: 4px 10px; border-radius: 999px; font-size: 0.76rem; font-weight: 800; white-space: nowrap; }
.pace-label.slow { background: rgba(96, 165, 250, 0.14); color: #93c5fd; }
.pace-label.ok { background: rgba(52, 211, 153, 0.14); color: #6ee7b7; }
.pace-label.fast { background: rgba(251, 113, 133, 0.14); color: #fda4af; }
.pace-label.very-slow { background: rgba(59, 130, 246, 0.22); color: #60a5fa; }
.pace-label.very-fast { background: rgba(244, 63, 94, 0.22); color: #fb7185; }
.pace-label.unavailable, .pace-label.reset { background: var(--surface-3); color: var(--muted); }
.formula-note { margin: 14px 4px 0; color: var(--muted); font-size: 0.78rem; line-height: 1.6; }

.metric-switch { display: inline-flex; padding: 4px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }
.metric-button { min-width: 76px; min-height: 40px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); cursor: pointer; }
.metric-button.active { background: var(--surface-3); color: var(--text); }
.source-tabs { display: flex; gap: 8px; margin: 0 0 12px; overflow-x: auto; scrollbar-width: none; }
.source-tab { min-width: 94px; min-height: 44px; padding: 0 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--muted); cursor: pointer; }
.source-tab.active { border-color: var(--source-color); color: var(--text); box-shadow: inset 0 -2px var(--source-color); }

.trend-chart-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.trend-card { padding: 20px; border-radius: 20px; }
.trend-card-all { grid-column: 1 / -1; }
.trend-card-subtitle { color: var(--muted); font-size: 0.76rem; }
.trend-card-source .chart-wrap { height: min(42vh, 330px); }
.trend-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin-bottom: 14px; }
.summary-cell { min-height: 68px; padding: 12px; border-radius: 12px; background: var(--surface-2); }
.summary-cell span { display: block; color: var(--muted); font-size: 0.7rem; }
.summary-cell strong { display: block; margin-top: 5px; font-size: 0.97rem; }
.chart-wrap { position: relative; width: 100%; height: min(52vh, 390px); }
.chart-empty { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; color: var(--muted); }
.chart-legend { display: flex; gap: 18px; margin-top: 10px; color: var(--muted); font-size: 0.76rem; }
.chart-legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend-line { width: 24px; border-top: 2px solid var(--accent); }
.legend-line.ideal { border-top-style: dashed; border-color: var(--muted); }
.legend-line.daily { border-top-style: dotted; border-color: var(--muted); }

.event-card { margin-top: 16px; padding: 20px; border-radius: 20px; }
.event-heading { align-items: center; }
.event-heading > span { color: var(--muted); font-size: 0.8rem; }
.event-list { display: grid; gap: 8px; margin-top: 14px; }
.event-item { display: grid; grid-template-columns: 120px 100px 1fr; gap: 14px; align-items: center; padding: 12px; border-radius: 12px; background: var(--surface-2); font-size: 0.8rem; }
.event-badge { display: inline-flex; justify-content: center; padding: 4px 8px; border-radius: 999px; background: var(--surface-3); font-weight: 700; }
.event-badge.confirmed { color: var(--accent); }
.event-badge.suspected { color: var(--warning); }
.event-empty { margin: 12px 0 0; color: var(--muted); font-size: 0.82rem; }

.bottom-nav {
  position: fixed;
  z-index: 5;
  left: 50%;
  bottom: max(14px, env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(360px, calc(100% - 28px));
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

.nav-button { display: flex; align-items: center; justify-content: center; gap: 7px; min-height: 50px; border: 0; border-radius: 14px; background: transparent; color: var(--muted); cursor: pointer; }
.nav-button.active { background: var(--surface-3); color: var(--text); }
.nav-icon { color: var(--accent); font-size: 1.1rem; }

[hidden] { display: none !important; }

@media (max-width: 720px) {
  .app-shell { padding: 20px 14px 104px; }
  .topbar { align-items: flex-start; }
  .topbar-right { flex-direction: column; align-items: flex-end; gap: 8px; }
  .sync-state { max-width: 48%; text-align: right; }
  .source-grid { grid-template-columns: minmax(0, 1fr); }
  .trend-chart-grid { grid-template-columns: minmax(0, 1fr); }
  .trend-card-all { grid-column: auto; }
  .section-heading { align-items: flex-start; flex-wrap: wrap; }
  .section-heading > p { max-width: none; text-align: left; }
  .trend-summary { grid-template-columns: repeat(2, 1fr); }
  .event-item { grid-template-columns: 1fr auto; }
  .event-item p { grid-column: 1 / 3; margin: 0; }
}

@media (max-width: 440px) {
  .topbar { display: block; }
  .nav-button { min-width: 0; gap: 4px; padding: 0 4px; font-size: 0.85rem; }
  .sync-state { max-width: 100%; margin-top: 12px; }
  .global-notice { align-items: stretch; flex-direction: column; }
  .section-heading, .trend-heading { display: block; }
  .section-heading > p { max-width: none; margin-top: 7px; text-align: left; }
  .metric-switch { margin-top: 13px; }
  .source-card { padding: 19px; }
  .chart-wrap { height: 310px; }
}

@media (prefers-reduced-motion: no-preference) {
  .view.active { animation: view-in 180ms ease-out; }
  @keyframes view-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
}