:root {
  --ink: #111827;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --surface: #f8fafc;
  --card: #ffffff;
  --bullish: #16a34a;
  --bullish-soft: #dcfce7;
  --bearish: #dc2626;
  --bearish-soft: #fee2e2;
  --shadow: rgba(15, 23, 42, 0.3);
  --border: rgba(148, 163, 184, 0.2);
}
body.dark {
  --ink: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.2);
  --surface: #0b1120;
  --card: #0f172a;
  --bullish: #4ade80;
  --bullish-soft: rgba(74, 222, 128, 0.16);
  --bearish: #f87171;
  --bearish-soft: rgba(248, 113, 113, 0.18);
  --shadow: rgba(15, 23, 42, 0.6);
  --border: rgba(148, 163, 184, 0.18);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top, #eff6ff, #ffffff 55%);
  transition: background 0.4s ease, color 0.3s ease;
}
body.dark {
  background: radial-gradient(circle at top, #172554, #0b1120 60%);
}
header {
  padding: 48px 24px 24px;
  text-align: center;
  position: relative;
}
.toolbar {
  position: absolute;
  top: 24px;
  left: 24px;
  right: 24px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}
.toolbar-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.toolbar details[open] summary {
  border-color: var(--accent);
}
.history-menu {
  position: relative;
}
.history-list {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  min-width: 220px;
  max-height: 260px;
  overflow: auto;
  box-shadow: 0 20px 40px -30px var(--shadow);
}
.icon-button {
  font: inherit;
  cursor: pointer;
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--border);
  width: 44px;
  height: 44px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px -24px var(--shadow);
  list-style: none;
  padding: 0;
}
.icon-button svg {
  width: 20px;
  height: 20px;
}
.icon-button i {
  font-size: 18px;
}
.icon-button:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.history-list a {
  display: block;
  padding: 6px 8px;
  color: var(--ink);
  text-decoration: none;
  border-radius: 8px;
}
.history-list a:hover {
  background: var(--accent-soft);
}
header h1 {
  margin: 0 0 8px;
  font-size: 2.2rem;
}
header p {
  margin: 0;
  color: var(--muted);
}
main {
  max-width: 1080px;
  margin: 0 auto 48px;
  padding: 0 24px 32px;
}
section {
  margin-bottom: 32px;
}
.section-title {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 16px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.card {
  background: var(--card);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 20px 40px -30px var(--shadow);
  border: 1px solid var(--border);
}
.card.bullish {
  border-color: var(--bullish);
  box-shadow: 0 24px 50px -30px rgba(22, 163, 74, 0.45);
}
.card h2 {
  margin: 0 0 4px;
  font-size: 1.2rem;
}
.screener-card .screener-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}
.screener-card .symbol {
  font-size: 1rem;
  letter-spacing: 0.14em;
  color: var(--ink);
  font-weight: 700;
}
.screener-card .signal-pill {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  background: var(--accent-soft);
  color: var(--accent);
}
.screener-card .signal-pill.bullish {
  background: var(--bullish-soft);
  color: var(--bullish);
  border-color: rgba(22, 163, 74, 0.25);
}
.screener-card .signal-pill.bearish {
  background: var(--bearish-soft);
  color: var(--bearish);
  border-color: rgba(220, 38, 38, 0.2);
}
.metric {
  font-size: 0.95rem;
  color: var(--muted);
  margin: 8px 0;
}
.symbol {
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}
.symbol-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.copy-button {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
}
.copy-button:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.copy-button.copied {
  border-color: var(--bullish);
  color: var(--bullish);
}
.screener-symbol {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.price {
  margin: 16px 0 8px;
  font-size: 1.7rem;
  color: var(--accent);
}
.change {
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  display: inline-block;
  background: var(--accent-soft);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 700;
}
.badge.bullish {
  background: var(--bullish-soft);
  color: var(--bullish);
}
.badge.bearish {
  background: var(--bearish-soft);
  color: var(--bearish);
}
.fear-card {
  text-align: center;
}
.fear-value {
  font-size: 2.2rem;
  margin: 12px 0 4px;
  color: var(--accent);
}
.fear-label {
  color: var(--muted);
  font-weight: 600;
}
.stock-metrics {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--muted);
}
footer {
  margin-top: 32px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  header {
    padding-top: 72px;
  }
  .toolbar {
    justify-content: space-between;
    gap: 10px;
  }
  .toolbar-actions {
    gap: 10px;
  }
  .icon-button {
    width: 40px;
    height: 40px;
  }
  .icon-button svg {
    width: 18px;
    height: 18px;
  }
  .history-list {
    min-width: 200px;
  }
}