/* Theme variables */
:root[data-theme="dark"] {
  --bg-primary: #0f1117;
  --bg-card: #1a1d27;
  --bg-hover: #252836;
  --text-primary: #e0e0e0;
  --text-secondary: #b0b0b0;
  --text-muted: #a0a0a0;
  --text-dimmed: #8c8eb0;
  --border: #3a3f58;
  --border-light: #464c6e;
  --grid-line: #363b56;
  --chart-text: #a0a0a0;
  --chart-border: #363b56;
  --header-bg: #1a1d27;
}
:root[data-theme="light"] {
  --bg-primary: #d5cdb8;
  --bg-card: #e0d8c4;
  --bg-hover: #c8c0aa;
  --text-primary: #1a1508;
  --text-secondary: #3a3020;
  --text-muted: #6a5a40;
  --text-dimmed: #8a7a5a;
  --border: #b8ae98;
  --border-light: #c5bca6;
  --grid-line: #c5bca6;
  --chart-text: #5a4a30;
  --chart-border: #c5bca6;
  --header-bg: #cac2ac;
}
:root { color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* Header / Nav */
header {
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
header .logo { font-size: 1.4rem; color: var(--text-primary); letter-spacing: .5px; font-weight: 700; text-decoration: none; }
header .subtitle { font-size: .8rem; color: var(--text-muted); }
header nav { margin-left: auto; display: flex; gap: 8px; align-items: center; }
header nav a {
  font-size: .8rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: all .15s;
}
header nav a.active,
header nav a:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  background: var(--bg-hover);
}

.theme-toggle, .lang-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: .8rem;
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
}
.theme-toggle { font-size: .85rem; }
.lang-toggle { font-weight: 600; letter-spacing: .3px; }
.theme-toggle:hover, .lang-toggle:hover { color: var(--text-primary); border-color: var(--text-muted); }

/* Layout */
.container { max-width: 1300px; margin: 0 auto; padding: 24px 16px; }

/* Score cards */
.score-row { display: flex; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  flex: 1;
  min-width: 160px;
}
.card .label {
  font-size: .75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-bottom: 8px;
}
.card .value { font-size: 2rem; font-weight: 700; }
.card .sub { font-size: .8rem; color: var(--text-secondary); margin-top: 4px; }
.bull { color: #4ade80; }
.bear { color: #f87171; }
.neut { color: #facc15; }

/* Chart cards */
.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 24px;
}
.chart-card h2 { font-size: .95rem; color: var(--text-secondary); margin-bottom: 4px; }
.chart-card .desc { font-size: .75rem; color: var(--text-muted); margin-bottom: 16px; }
.chart-wrap { position: relative; height: 280px; }
.chart-wrap.tall { height: 320px; }

.range-btns { display: flex; gap: 6px; margin-left: auto; }
.range-btns button {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .72rem;
  padding: 3px 9px;
  border-radius: 5px;
  cursor: pointer;
}
.range-btns button.active,
.range-btns button:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}
.chart-header { display: flex; align-items: flex-start; margin-bottom: 16px; flex-wrap: wrap; gap: 8px; }

/* Two-column layout */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
@media (max-width: 800px) { .cols { grid-template-columns: 1fr; } }

/* Tables */
.prices-card, .posts-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
}
.prices-card h2, .posts-card h2 { font-size: .95rem; color: var(--text-secondary); margin-bottom: 12px; }
table { width: 100%; border-collapse: collapse; font-size: .85rem; }
th {
  color: var(--text-muted);
  text-align: left;
  padding: 4px 8px;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
td { padding: 6px 8px; border-bottom: 1px solid var(--border-light); }
tr:last-child td { border-bottom: none; }

/* Posts */
.post { padding: 12px 0; border-bottom: 1px solid var(--border-light); }
.post:last-child { border-bottom: none; }
.post .meta { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; flex-wrap: wrap; }
.post .time { font-size: .75rem; color: var(--text-muted); }
.post .score { font-size: .72rem; font-weight: 600; padding: 2px 7px; border-radius: 20px; }
.post .text { font-size: .84rem; color: var(--text-secondary); line-height: 1.5; }
.tag { font-size: .7rem; background: var(--bg-hover); color: var(--text-secondary); padding: 2px 6px; border-radius: 4px; }

/* Prediction panel */
.pred-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: 14px;
}
.pred-table thead th {
  font-size: .72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .8px;
  padding: 6px 12px 10px;
  text-align: center;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
.pred-table thead th:first-child { text-align: left; }
.pred-index-label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 10px 12px;
  white-space: nowrap;
  border-bottom: 1px solid var(--border-light);
}
.pred-table tbody tr:last-child .pred-index-label,
.pred-table tbody tr:last-child td { border-bottom: none; }
.pred-table tbody td {
  padding: 6px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}
.pred-cell { display: flex; flex-direction: column; align-items: flex-start; }
.pred-horizon {
  font-size: .72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-bottom: 10px;
}
.pred-arrow {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}
.pred-label {
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: .5px;
}
.pred-confidence {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 3px;
  width: 100%;
}
.conf-bar-bg {
  width: 60px;
  min-width: 60px;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.conf-bar {
  height: 100%;
  border-radius: 3px;
  transition: width .4s;
}
.conf-bar.bull { background: #4ade80; }
.conf-bar.bear { background: #f87171; }
.conf-bar.neut { background: #facc15; }
.conf-pct {
  font-size: .75rem;
  color: var(--text-secondary);
  min-width: 32px;
  text-align: right;
}
.pred-acc {
  font-size: .68rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.pred-loading { color: var(--text-muted); font-size: .85rem; padding: 20px 0; }
.disclaimer {
  margin-top: 4px;
  padding: 10px 14px;
  background: rgba(250,204,21,.06);
  border: 1px solid rgba(250,204,21,.2);
  border-radius: 7px;
  font-size: .75rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.disclaimer strong { color: #facc15; }

/* Footer */
footer { text-align: center; padding: 24px; font-size: .75rem; color: var(--text-dimmed); }

/* Home page: index grid */
.index-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 24px; margin-bottom: 24px; }
@media (max-width: 600px) { .index-grid { grid-template-columns: 1fr; } }
.index-summary {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  cursor: pointer;
  transition: border-color .15s;
}
.index-summary:hover { border-color: var(--text-muted); }
.index-summary .title { font-size: 1.1rem; font-weight: 600; margin-bottom: 4px; }
.index-summary .tagline { font-size: .8rem; color: var(--text-muted); margin-bottom: 16px; }
.index-summary .big-value { font-size: 3rem; font-weight: 700; margin-bottom: 4px; }
.index-summary .detail { font-size: .8rem; color: var(--text-secondary); }
.index-summary .mini-chart { height: 120px; margin-top: 16px; position: relative; }