/* Sealed Calls (sealedcalls.com). All colours and fonts are tokens here. */
:root {
  --paper: #f6f5f1; --card: #ffffff; --ink: #11151c; --muted: #5b6270; --line: #e2e0d8;
  --accent: #1f4fd1; --accent-ink: #ffffff;
  --win: #11734f; --win-bg: #e3f3ec; --loss: #b3261e; --loss-bg: #fbe9e7;
  --open: #8a5a00; --open-bg: #fbf0d9; --seal: #4b3fb0; --seal-bg: #ecebfa;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --r: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0d1015; --card: #151a22; --ink: #e9ecf1; --muted: #9aa3b2; --line: #262d39;
    --accent: #7fa2ff; --accent-ink: #0d1015;
    --win: #5fd3a2; --win-bg: #12302a; --loss: #ff8a80; --loss-bg: #3a1c1c;
    --open: #f2c26b; --open-bg: #352a12; --seal: #b3abff; --seal-bg: #24214a;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.55 var(--sans); }
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
header.top { border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; z-index: 5; }
header.top .wrap { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 750; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand img { width: 28px; height: 28px; }
nav.menu { display: flex; gap: 18px; margin-left: auto; font-size: 15px; }
nav.menu a { color: var(--muted); text-decoration: none; }
nav.menu a:hover, nav.menu a[aria-current] { color: var(--ink); }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 10px; padding: 10px 16px; font: 600 15px var(--sans); text-decoration: none; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.08; letter-spacing: -0.025em; margin: 0 0 16px; }
h2 { font-size: 24px; letter-spacing: -0.01em; margin: 40px 0 14px; }
h3 { font-size: 17px; margin: 0 0 6px; }
.lede { font-size: 19px; color: var(--muted); max-width: 640px; margin: 0 0 24px; }
.hero { padding: 56px 0 28px; display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps .n { font: 700 13px var(--mono); color: var(--seal); background: var(--seal-bg); border-radius: 6px; padding: 2px 8px; display: inline-block; margin-bottom: 10px; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }
.mono { font-family: var(--mono); font-size: 13px; word-break: break-all; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th { text-align: left; font-weight: 600; color: var(--muted); font-size: 13px; padding: 8px 10px; border-bottom: 1px solid var(--line); }
td { padding: 11px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); overflow-x: auto; }
.pill { display: inline-block; font-size: 12.5px; font-weight: 650; border-radius: 999px; padding: 2px 10px; white-space: nowrap; }
.pill.win { color: var(--win); background: var(--win-bg); }
.pill.loss { color: var(--loss); background: var(--loss-bg); }
.pill.open { color: var(--open); background: var(--open-bg); }
.pill.sealed { color: var(--seal); background: var(--seal-bg); }
.pill.desk { color: var(--accent); background: transparent; border: 1px solid var(--accent); }
.up { color: var(--win); } .down { color: var(--loss); }
.ticker { font-weight: 700; letter-spacing: 0.01em; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 18px 0; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; }
.stat b { display: block; font-size: 26px; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stat > span { color: var(--muted); font-size: 13px; }
.note { border-left: 3px solid var(--open); background: var(--open-bg); color: var(--ink); padding: 10px 14px; border-radius: 6px; font-size: 14.5px; }
.proof dl { display: grid; grid-template-columns: 170px 1fr; gap: 8px 16px; margin: 0; }
.proof dt { color: var(--muted); font-size: 14px; }
.proof dd { margin: 0; }
form .field { margin-bottom: 14px; }
label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 5px; }
input, select, textarea { width: 100%; font: 16px var(--sans); color: var(--ink); background: var(--card); border: 1px solid #9097a3; border-radius: 9px; padding: 10px 12px; }
.row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.hint { color: var(--muted); font-size: 13px; margin-top: 4px; }
.msg { margin-top: 12px; font-size: 15px; }
.msg.err { color: var(--loss); } .msg.ok { color: var(--win); }
footer { border-top: 1px solid var(--line); margin-top: 64px; padding: 28px 0 40px; color: var(--muted); font-size: 13.5px; }
footer p { max-width: 760px; }
.seal-demo { font-family: var(--mono); font-size: 13px; line-height: 1.7; }
.seal-demo .k { color: var(--muted); }
.empty { padding: 28px; text-align: center; color: var(--muted); }
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 32px; gap: 24px; }
  .steps, .stats { grid-template-columns: 1fr 1fr; }
  .row { grid-template-columns: 1fr; }
  nav.menu { gap: 12px; font-size: 14px; }
  nav.menu .hide-sm { display: none; }
  nav.menu a { white-space: nowrap; }
  .brand span { display: none; }
  .proof dl { grid-template-columns: 1fr; gap: 2px; }
  .proof dd { margin-bottom: 10px; }
  .hide-sm { display: none; }
}
@media (max-width: 420px) { .steps, .stats { grid-template-columns: 1fr; } }