:root {
  --bg: #faf9f6; --panel: #ffffff; --ink: #1d1d1f; --muted: #6b6b70; --line: #e4e2dc;
  --accent: #2f5d50; --accent-ink: #ffffff; --warn: #9a5b00; --err: #a1261b;
  --l4: #f4b4a8; --l3: #f8d3a6; --l2: #fbeec2; --l1: transparent;
  --v-indication: #f8d3a6; --v-partial: #fbeec2; --v-inconclusive: #e6e6e6; --v-no_evidence: #d8ecdc;
  --mark: #b0412e;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141416; --panel: #1d1d20; --ink: #ececee; --muted: #a0a0a8; --line: #2e2e33;
    --accent: #6fb39f; --accent-ink: #0d1a16;
    --l4: #6b2a20; --l3: #66431c; --l2: #4d4420;
    --v-indication: #66431c; --v-partial: #4d4420; --v-inconclusive: #33333a; --v-no_evidence: #20402c;
    --mark: #ff8f7a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
header { display: flex; align-items: center; gap: 24px; padding: 14px 24px; border-bottom: 1px solid var(--line); background: var(--panel); }
header .brand { font-weight: 700; font-size: 19px; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
header .brand span { color: var(--accent); }
header nav { display: flex; gap: 16px; flex: 1; }
header nav a { text-decoration: none; color: var(--muted); }
header .acct { font-size: 14px; color: var(--muted); }
main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { font-size: 28px; letter-spacing: -0.02em; margin: 8px 0 4px; }
.sub { color: var(--muted); margin: 0 0 20px; }
.grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 20px; align-items: start; }
@media (max-width: 860px) { .grid { grid-template-columns: 1fr; } header { flex-wrap: wrap; gap: 10px; } }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-bottom: 16px; }
.card h2 { font-size: 16px; margin: 0 0 10px; }
textarea { width: 100%; min-height: 260px; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font: 15px/1.5 Georgia, serif; resize: vertical; }
input[type=email], input[type=password] { width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink); margin-bottom: 8px; font-size: 15px; }
button, .btn { display: inline-block; padding: 9px 16px; border-radius: 7px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); font-size: 15px; cursor: pointer; text-decoration: none; }
button.ghost, .btn.ghost { background: transparent; color: var(--accent); }
button:disabled { opacity: .5; cursor: default; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.muted { color: var(--muted); font-size: 14px; }
.err { color: var(--err); font-size: 14px; min-height: 1em; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.price { font-size: 26px; font-weight: 700; }
.pill { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 12px; background: var(--bg); border: 1px solid var(--line); }
.banner { background: #7a1f12; color: #fff; padding: 8px 14px; border-radius: 8px; margin-bottom: 14px; font-weight: 600; }
.verdict { border-radius: 10px; padding: 16px 18px; margin-bottom: 16px; border: 1px solid var(--line); }
.verdict h2 { margin: 0 0 4px; font-size: 21px; }
.v-indication { background: var(--v-indication); } .v-partial { background: var(--v-partial); }
.v-inconclusive { background: var(--v-inconclusive); } .v-no_evidence { background: var(--v-no_evidence); }
.doc { white-space: pre-wrap; font: 16px/1.75 Georgia, serif; max-height: 75vh; overflow: auto; padding-right: 8px; }
.s { border-radius: 3px; transition: outline .2s; }
.s.l4 { background: var(--l4); } .s.l3 { background: var(--l3); } .s.l2 { background: var(--l2); }
.s.flash { outline: 2px solid var(--accent); }
.hl { text-decoration: underline wavy var(--mark); text-underline-offset: 3px; cursor: help; }
.cm { border-bottom: 2px dotted var(--accent); cursor: help; }
.legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.legend i { display: inline-block; width: 14px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; }
.coach-item { padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; cursor: pointer; }
.coach-item b { display: block; }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: 12px; word-break: break-all; }
.ok { color: #2a7a3b; font-weight: 600; } .bad { color: var(--err); font-weight: 600; }
.tiers { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.spinner { width: 18px; height: 18px; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; display: inline-block; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }

/* marketing site */
.hero { padding: 40px 0 24px; }
.hero h1 { font-size: 40px; line-height: 1.15; max-width: 760px; }
.hero .sub { font-size: 19px; max-width: 700px; }
section { margin: 40px 0; }
section > h2 { font-size: 24px; letter-spacing: -0.01em; margin: 0 0 14px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.cols .card p { margin: 0; color: var(--muted); font-size: 15px; }
.demo .doc { max-height: none; font-size: 15px; }
.soon { display: inline-block; padding: 9px 16px; border-radius: 7px; border: 1px dashed var(--accent); color: var(--accent); font-size: 15px; }
footer { border-top: 1px solid var(--line); padding: 20px 16px; text-align: center; color: var(--muted); font-size: 13px; }
@media (max-width: 600px) { .hero h1 { font-size: 30px; } }