:root {
  --bg: #fbf7f4; --card: #fff; --ink: #1f1a17; --muted: #645a53; --line: #e8dfd8;
  --accent: #c2255c; --accent-ink: #fff; --ok: #237032; --warn: #c2410c; --danger: #c92a2a;
  --err-bg: #ffe3e3; --err-ink: #a51111;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink);
}
/* Dark: near-black ground, clearly lighter cards, bright text, a lighter pink
   (with dark text on pink buttons). Every pair is at least WCAG AA 4.5:1. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0c0b; --card: #1d1a18; --ink: #f7f2ef; --muted: #c9bfb8; --line: #3d3532;
    --accent: #ff7aa8; --accent-ink: #1a0b11; --ok: #69db7c; --warn: #ffa94d; --danger: #ff8787;
    --err-bg: #3d1416; --err-ink: #ffc9c9; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e0c0b; --card: #1d1a18; --ink: #f7f2ef; --muted: #c9bfb8; --line: #3d3532;
  --accent: #ff7aa8; --accent-ink: #1a0b11; --ok: #69db7c; --warn: #ffa94d; --danger: #ff8787;
  --err-bg: #3d1416; --err-ink: #ffc9c9; color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.5; }
main { max-width: 820px; margin: 0 auto; padding: 16px; }
a { color: var(--accent); }
.top { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--line); flex-wrap: wrap; gap: 8px; }
.top nav { display: flex; gap: 16px; align-items: center; }
.brand { font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--ink); }
footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 24px 16px; }
.hero { padding: 32px 0 16px; }
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.15; margin: 0 0 12px; }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 60ch; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 24px 0; }
.steps div, .card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 20px; }
.card { margin: 16px 0; }
.narrow { max-width: 440px; margin: 32px auto; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 999px; padding: 10px 20px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.small { padding: 6px 14px; }
button.link { background: none; border: 0; color: var(--accent); font: inherit; cursor: pointer; padding: 0; text-decoration: underline; }
.inline { display: inline; }
.stack { display: grid; gap: 12px; }
.stack label { display: grid; gap: 4px; font-weight: 500; }
.check { display: flex !important; gap: 8px; align-items: flex-start; font-weight: 400 !important; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row input { flex: 1; min-width: 180px; }
input { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); }
.hint, .muted { color: var(--muted); font-size: .9rem; font-weight: 400; }
.error { background: var(--err-bg); color: var(--err-ink); padding: 8px 12px; border-radius: 8px; }
pre { white-space: pre-wrap; word-break: break-word; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: .85rem; }
.secret { font-size: 1rem; font-weight: 600; user-select: all; }
.key { border-color: var(--accent); }
.headline { font-size: 1.15rem; font-style: italic; }
.grid { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; }
.grid dt { color: var(--muted); }
.grid dd { margin: 0; }
.chip { display: inline-block; background: var(--bg); border: 1px solid var(--line); border-radius: 999px; padding: 0 10px; font-size: .85rem; margin: 2px 0; }
.matches { list-style: none; padding: 0; display: grid; gap: 12px; }
.match { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px; }
.match-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.match-head h1, .match-head h2 { margin: 0; }
.badge { font-size: .8rem; border-radius: 999px; padding: 2px 10px; border: 1px solid var(--line); white-space: nowrap; }
.badge.introduced, .badge.active { color: var(--ok); border-color: var(--ok); }
.badge.declined, .badge.paused { color: var(--warn); border-color: var(--warn); }
.verdict { border-left: 4px solid var(--muted); padding-left: 12px; }
.verdict.introduce { border-left-color: var(--ok); }
.verdict.pass { border-left-color: var(--warn); }
.contact { background: var(--bg); padding: 8px 12px; border-radius: 8px; }
.decide { border-color: var(--accent); }
.chat { list-style: none; padding: 0; display: grid; gap: 8px; }
.chat li { max-width: 85%; padding: 8px 12px; border-radius: 14px; background: var(--card); border: 1px solid var(--line); white-space: pre-wrap; }
.chat li.me { justify-self: end; background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.who { display: block; font-size: .75rem; opacity: .75; }
.doc { max-height: 70vh; overflow: auto; }
.narrow h2 { font-size: 1.1rem; margin: 20px 0 4px; }
.otp { font: 600 1.6rem/1 ui-monospace, "SF Mono", Menlo, monospace; letter-spacing: .4em; text-align: center; }
.notice { background: var(--bg); border: 1px solid var(--ok); color: var(--ok); padding: 8px 12px; border-radius: 8px; }
.reasons { margin: 4px 0 8px; padding-left: 20px; }
.label { margin: 8px 0 0; font-size: .8rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
textarea { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); width: 100%; resize: vertical; }
.qa { display: grid; gap: 4px; margin: 0 0 12px; }
.qa dt { font-weight: 600; }
.qa dd { margin: 0 0 8px; }
select { font: inherit; padding: 9px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); }
.ask { border-top: 1px solid var(--line); padding-top: 10px; margin-top: 10px; }
.ask p { margin: 4px 0; }
.update { border-top: 1px solid var(--line); padding-top: 8px; margin-top: 10px; }
.pre { white-space: pre-wrap; margin: 4px 0; }
.row input[type="radio"], .row input[type="checkbox"] { flex: none; min-width: 0; }
.row .check { align-items: center; margin-right: 12px; }
select { max-width: 100%; min-width: 0; }
.row select { flex: 1 1 200px; }
.legal { max-width: 70ch; }
.legal h1 { margin-top: 0; }
.legal h2 { font-size: 1.15rem; margin: 24px 0 6px; }
.legal li { margin: 4px 0; }
.photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin: 12px 0; }
.photo { margin: 0; display: grid; gap: 6px; align-content: start; }
.photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 10px; background: var(--bg); border: 1px solid var(--line); }
.photo figcaption { display: grid; gap: 3px; font-size: .82rem; }
.ph-label { font-weight: 600; }
.ph-ai { color: var(--danger); }
.ph-edit { color: var(--warn); }
.ph-cam { color: var(--ok); }
.ph-none { color: var(--muted); }
.take { color: var(--ink); }
input[type="file"] { min-width: 0; max-width: 100%; }