:root {
  --bg: #07111f;
  --card: #0d1b2e;
  --muted: #91a3bb;
  --text: #eef6ff;
  --line: rgba(255,255,255,.08);
  --green: #22c55e;
  --red: #ef4444;
  --blue: #38bdf8;
  --yellow: #f59e0b;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif; background: radial-gradient(circle at top, #12345d, var(--bg) 42%); color: var(--text); }
.hero { padding: 32px clamp(16px,4vw,48px); display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); }
.eyebrow { margin: 0 0 8px; color: var(--blue); letter-spacing: .08em; text-transform: uppercase; font-size: 12px; }
h1 { margin: 0; font-size: clamp(28px, 5vw, 54px); }
.subtitle { color: var(--muted); margin: 10px 0 0; }
.status { padding: 10px 14px; background: rgba(34,197,94,.12); color: #bbf7d0; border: 1px solid rgba(34,197,94,.25); border-radius: 999px; white-space: nowrap; }
.container { padding: 24px clamp(16px,4vw,48px) 48px; }
.card { background: rgba(13,27,46,.88); border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 20px 60px rgba(0,0,0,.25); }
.controls { padding: 16px; display: flex; align-items: end; gap: 14px; flex-wrap: wrap; }
label { color: var(--muted); font-size: 13px; display: grid; gap: 8px; }
select, input, button { background: #091526; color: var(--text); border: 1px solid var(--line); padding: 11px 14px; border-radius: 12px; font: inherit; min-width: 150px; }
button { cursor: pointer; background: linear-gradient(135deg, #0284c7, #2563eb); border: 0; font-weight: 700; }
.auto { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.auto input { accent-color: var(--blue); }
.cards { margin: 18px 0; display: grid; grid-template-columns: repeat(4, minmax(160px, 1fr)); gap: 14px; }
.metric { padding: 16px; }
.metric .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.metric .value { margin-top: 8px; font-size: 26px; font-weight: 800; }
.metric .hint { color: var(--muted); margin-top: 4px; font-size: 12px; }
.table-card { overflow: hidden; }
.table-header { display: flex; justify-content: space-between; align-items: center; padding: 18px; border-bottom: 1px solid var(--line); }
h2 { margin: 0; }
#updatedAt { color: var(--muted); font-size: 13px; }
.table-wrap { overflow: auto; max-height: 68vh; }
table { width: 100%; border-collapse: collapse; min-width: 1080px; }
th, td { padding: 10px 9px; border-bottom: 1px solid var(--line); text-align: right; font-size: 13px; }
th { position: sticky; top: 0; z-index: 1; background: #0b1728; color: var(--muted); }
.call-head { color: #fecaca; background: rgba(239,68,68,.12); text-align: center; }
.put-head { color: #bbf7d0; background: rgba(34,197,94,.12); text-align: center; }
.strike-head { color: #fde68a; text-align: center; }
.strike { text-align: center; font-weight: 800; color: #fde68a; background: rgba(245,158,11,.09); }
.atm td { background: rgba(56,189,248,.12); }
.pos { color: var(--green); font-weight: 700; }
.neg { color: var(--red); font-weight: 700; }
.muted { color: var(--muted); }
@media (max-width: 900px) { .hero { align-items: flex-start; flex-direction: column; } .cards { grid-template-columns: repeat(2, 1fr); } .auto { margin-left: 0; } }
@media (max-width: 560px) { .cards { grid-template-columns: 1fr; } }

.symbol-combo { min-width: 280px; }
.symbol-combo input { min-width: 260px; text-transform: uppercase; }
.help-text { color: var(--muted); font-size: 11px; max-width: 280px; line-height: 1.35; }