:root {
  color-scheme: light;
  --accent: #b86a17;
  --accent-strong: #8d4d08;
  --accent-soft: #f1d7ba;
  --bg: #f6f4ef;
  --surface: #ffffff;
  --surface-muted: #f0ece4;
  --surface-strong: #e7e0d4;
  --border: #d7d0c4;
  --text: #1f1b16;
  --text-muted: #62594d;
  --shadow: 0 18px 45px rgba(30, 20, 10, 0.08);
  --gain: #147a4b;
  --gain-bg: #dff4ea;
  --loss: #b32727;
  --loss-bg: #fde8e8;
  --muted-bg: #ebe7de;
}

[data-theme="dark"] {
  color-scheme: dark;
  --accent: #d08a3e;
  --accent-strong: #e3a458;
  --accent-soft: rgba(208, 138, 62, 0.18);
  --bg: #151311;
  --surface: #201c18;
  --surface-muted: #29231f;
  --surface-strong: #342c26;
  --border: #3f362e;
  --text: #f4ede3;
  --text-muted: #b7aa9a;
  --shadow: 0 20px 55px rgba(0, 0, 0, 0.35);
  --gain: #46c386;
  --gain-bg: rgba(70, 195, 134, 0.14);
  --loss: #ff7d7d;
  --loss-bg: rgba(255, 125, 125, 0.14);
  --muted-bg: #2c2621;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Segoe UI", "PingFang TC", "Noto Sans TC", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(184, 106, 23, 0.08), transparent 32%),
    linear-gradient(180deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 75%, var(--surface) 25%) 100%);
  color: var(--text);
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 20px 48px;
}

.site-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  padding: 12px 0 20px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header h1 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.site-subtitle {
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 1rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.theme-toggle,
.tab-button {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 999px;
  box-shadow: var(--shadow);
}

.theme-toggle-label {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.theme-toggle-value {
  color: var(--accent-strong);
  font-weight: 700;
}

.updated-at {
  padding: 12px 14px;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 82%, var(--accent-soft) 18%);
  border: 1px solid var(--border);
  min-width: 220px;
}

.updated-at span {
  display: block;
  color: var(--text-muted);
  font-size: 0.78rem;
  margin-bottom: 4px;
}

.updated-at strong {
  font-size: 0.95rem;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 8px 0 24px;
}

.tab-button {
  padding: 14px 16px;
  border-radius: 18px;
  min-width: 180px;
  text-align: left;
  box-shadow: var(--shadow);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.tab-button span {
  display: block;
}

.tab-button span:first-child {
  font-weight: 700;
}

.tab-button span:last-child {
  color: var(--text-muted);
  font-size: 0.86rem;
  margin-top: 4px;
}

.tab-button:hover {
  transform: translateY(-1px);
}

.tab-button.is-active {
  background: color-mix(in srgb, var(--surface) 70%, var(--accent-soft) 30%);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border) 60%);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading h2 {
  margin: 0 0 6px;
  font-size: 1.45rem;
}

.section-heading p {
  margin: 0;
  color: var(--text-muted);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card,
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.summary-card {
  padding: 20px;
}

.summary-card-label {
  margin: 0 0 14px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.summary-card-value {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.summary-card-value.is-gain,
.tone-gain {
  color: var(--gain);
}

.summary-card-value.is-loss,
.tone-loss {
  color: var(--loss);
}

.summary-card-value.is-muted,
.tone-muted {
  color: var(--text-muted);
}

.summary-card-meta {
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 0.84rem;
}

.panel {
  padding: 20px;
  margin-bottom: 20px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.panel-header h3 {
  margin: 0 0 6px;
  font-size: 1.1rem;
}

.panel-header p {
  margin: 0;
  color: var(--text-muted);
}

.panel-note {
  margin: 16px 0 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.chart-panel {
  min-height: 320px;
}

.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}

th {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.table-subtext {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.78rem;
  font-weight: 700;
}

.pill.is-gain {
  color: var(--gain);
  background: var(--gain-bg);
}

.pill.is-loss {
  color: var(--loss);
  background: var(--loss-bg);
}

.macro-layout {
  display: grid;
  gap: 20px;
}

.fear-greed-grid {
  display: grid;
  grid-template-columns: minmax(240px, 320px) 1fr;
  gap: 20px;
}

.fear-greed-score {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.score-value {
  font-size: clamp(2.8rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.05em;
}

.score-label {
  color: var(--accent-strong);
  font-weight: 700;
}

.score-meta {
  margin: 0;
  display: grid;
  gap: 12px;
}

.score-meta dt {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 4px;
}

.score-meta dd {
  margin: 0;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.metric-strip-item {
  padding: 16px;
  border-radius: 18px;
  background: var(--surface-muted);
}

.metric-strip-item span,
.snapshot-cell span {
  display: block;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 8px;
}

.metric-strip-item strong,
.snapshot-cell strong,
.macro-card-value {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
}

.metric-strip-item small,
.macro-card-description {
  display: block;
  margin-top: 8px;
  color: var(--text-muted);
}

.macro-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.macro-card {
  margin: 0;
}

.macro-card-title {
  margin: 0 0 10px;
  color: var(--text-muted);
}

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.snapshot-cell {
  padding: 16px;
  border-radius: 18px;
  background: var(--surface-muted);
}

.empty-state {
  padding: 48px 24px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 24px;
  background: color-mix(in srgb, var(--surface) 70%, var(--surface-muted) 30%);
}

.site-footer {
  margin-top: 28px;
  padding-top: 18px;
  color: var(--text-muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .fear-greed-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-shell {
    padding-inline: 14px;
  }

  .tab-button {
    width: 100%;
  }

  .theme-toggle,
  .updated-at {
    width: 100%;
    justify-content: space-between;
  }

  .panel,
  .summary-card {
    border-radius: 20px;
  }
}