:root {
  --ink: #12324a;
  --ink-soft: #3d5a70;
  --paper: #f7f4ee;
  --card: #ffffff;
  --line: #e2dccf;
  --accent: #f3c969;
  --accent-ink: #5a4410;
  --pass: #1f7a4d;
  --pass-bg: #e3f3ea;
  --warn: #8a5a00;
  --warn-bg: #fdf0d5;
  --fail: #b3261e;
  --fail-bg: #fbe4e2;
  --info: #3d5a70;
  --info-bg: #e8eef3;
  --radius: 14px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eef3;
    --ink-soft: #a9bccb;
    --paper: #0f1d29;
    --card: #162a3a;
    --line: #26405a;
    --accent-ink: #f3c969;
    --pass: #6fd3a0; --pass-bg: #163a2a;
    --warn: #f3c969; --warn-bg: #3a2f14;
    --fail: #ff9a92; --fail-bg: #3d1d1c;
    --info: #a9bccb; --info-bg: #1d3446;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font); line-height: 1.55; }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 16px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.top { border-bottom: 1px solid var(--line); }
.top-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; }
.brand { color: var(--ink); text-decoration: none; font-weight: 700; letter-spacing: .01em; display: inline-flex; align-items: center; gap: 8px; }
.brand-mark { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 7px; background: #12324a; color: #f3c969; font-size: 15px; }
.top-note { color: var(--ink-soft); font-size: 14px; }

.hero { padding: 56px 0 40px; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: 12px; font-weight: 700; color: var(--ink-soft); margin: 0 0 12px; }
h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(34px, 6vw, 56px); line-height: 1.08; margin: 0 0 16px; letter-spacing: -.01em; }
h1 em { font-style: italic; background: linear-gradient(transparent 62%, rgba(243, 201, 105, .55) 62%); }
.lede { font-size: 18px; color: var(--ink-soft); max-width: 640px; margin: 0 0 28px; }

.scan-form, .sub-form { display: flex; gap: 10px; flex-wrap: wrap; }
.scan-form input, .sub-form input {
  flex: 1 1 260px; min-width: 0; font: inherit; font-size: 18px; padding: 14px 16px;
  border: 2px solid var(--line); border-radius: 12px; background: var(--card); color: var(--ink);
}
.sub-form input { font-size: 16px; padding: 11px 14px; }
input:focus { outline: none; border-color: var(--ink); }
button, .button-link {
  font: inherit; font-weight: 700; font-size: 17px; border: 0; border-radius: 12px; cursor: pointer;
  padding: 14px 22px; background: #12324a; color: #fff; text-decoration: none; display: inline-block;
}
.sub-form button { font-size: 15px; padding: 11px 18px; }
button:hover, .button-link:hover { filter: brightness(1.15); }
button:disabled { opacity: .6; cursor: progress; }
button:focus-visible, .button-link:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.form-help { font-size: 14px; color: var(--ink-soft); margin: 10px 0 0; min-height: 1.4em; }
.form-help.error { color: var(--fail); }

.results { padding: 8px 0 40px; }
.summary { display: flex; gap: 22px; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.grade { flex: none; width: 96px; height: 96px; border-radius: 22px; display: grid; place-items: center; font-family: var(--serif); font-size: 56px; font-weight: 700; color: #fff; background: var(--info); }
.grade[data-grade="A"] { background: #1f7a4d; }
.grade[data-grade="B"] { background: #4b8a2f; }
.grade[data-grade="C"] { background: #b07c00; }
.grade[data-grade="D"] { background: #c0581c; }
.grade[data-grade="F"] { background: #b3261e; }
.summary-domain { margin: 0; font-weight: 700; font-size: 20px; word-break: break-all; }
.summary-score { margin: 2px 0 0; color: var(--ink-soft); }
.summary-note { margin: 6px 0 0; font-size: 15px; }

.sections { margin-top: 22px; display: grid; gap: 22px; }
.section h2 { font-size: 15px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); margin: 0 0 10px; display: flex; justify-content: space-between; gap: 8px; }
.check { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin-bottom: 10px; display: grid; grid-template-columns: auto 1fr auto; gap: 4px 12px; align-items: start; }
.chip { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; padding: 3px 8px; border-radius: 999px; white-space: nowrap; margin-top: 2px; }
.chip.pass { color: var(--pass); background: var(--pass-bg); }
.chip.warn { color: var(--warn); background: var(--warn-bg); }
.chip.fail { color: var(--fail); background: var(--fail-bg); }
.chip.info { color: var(--info); background: var(--info-bg); }
.check-label { font-weight: 700; }
.check-points { color: var(--ink-soft); font-size: 14px; white-space: nowrap; }
.check-detail, .check-fix, .check-raw { grid-column: 2 / 4; margin: 0; }
.check-detail { color: var(--ink-soft); }
.check-fix { font-size: 15px; border-left: 3px solid var(--accent); padding-left: 10px; margin-top: 6px; }
.check-fix strong { color: var(--ink); }
.check-raw { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; color: var(--ink-soft); overflow-wrap: anywhere; margin-top: 6px; }

.next { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 26px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.card h2 { font-family: var(--serif); font-size: 22px; margin: 0 0 6px; }
.card p { margin: 0 0 14px; color: var(--ink-soft); }
.card-accent { border-color: var(--accent); box-shadow: inset 0 4px 0 var(--accent); }
.button-link { font-size: 15px; padding: 11px 18px; }

.explain { border-top: 1px solid var(--line); padding: 40px 0; }
.explain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.explain h2 { font-family: var(--serif); font-size: 24px; margin: 0 0 10px; }
.plain { padding-left: 18px; margin: 0; }
.plain li { margin-bottom: 6px; }
.fine { font-size: 14px; color: var(--ink-soft); }

.foot { border-top: 1px solid var(--line); padding: 20px 0 32px; font-size: 13px; color: var(--ink-soft); }

.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; vertical-align: -2px; margin-right: 6px; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }

@media (max-width: 680px) {
  .hero { padding: 36px 0 28px; }
  .summary { flex-direction: column; align-items: flex-start; }
  .grade { width: 80px; height: 80px; font-size: 46px; }
  .next, .explain-grid { grid-template-columns: 1fr; }
  .check { grid-template-columns: auto 1fr; }
  .check-points { grid-column: 2; }
  .check-detail, .check-fix, .check-raw { grid-column: 1 / 3; }
  .scan-form button, .sub-form button { width: 100%; }
}

/* ---------- Darnell Labs site pages ---------- */
a { color: inherit; }
.top-note a { color: var(--ink); font-weight: 600; }
.brand-mark-text { font-size: 12px; font-weight: 800; letter-spacing: .02em; }
.site-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-nav a { color: var(--ink-soft); text-decoration: none; font-weight: 600; font-size: 15px; }
.site-nav a:hover { color: var(--ink); }

.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.button-secondary { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }

.band { border-top: 1px solid var(--line); padding: 44px 0; }
.band-title { font-family: var(--serif); font-size: 30px; margin: 0 0 18px; }
.products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: start; }
.product { display: flex; flex-direction: column; gap: 4px; }
.product h3 { font-family: var(--serif); font-size: 22px; margin: 0 0 6px; }
.product .plain { margin: 0 0 16px; color: var(--ink-soft); }
.product .button-link { align-self: flex-start; }
.product .fine { margin: 12px 0 0; }
.price { font-weight: 800; font-size: 20px; margin: 0 0 4px; color: var(--ink); }
.price span { font-weight: 600; font-size: 14px; color: var(--ink-soft); }
.product-soon { border-style: dashed; }
.product-soon .price { color: var(--ink-soft); }

.about { display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; align-items: start; }
.about h3 { font-family: var(--serif); font-size: 20px; margin: 0 0 8px; }
.about .plain li { margin-bottom: 8px; color: var(--ink-soft); }

.contact-form { display: grid; gap: 6px; }
.contact-form label { font-weight: 600; font-size: 14px; margin-top: 6px; }
.contact-form input, .contact-form select, .contact-form textarea {
  font: inherit; font-size: 16px; padding: 10px 12px; border: 2px solid var(--line); border-radius: 10px;
  background: var(--paper); color: var(--ink); width: 100%;
}
.contact-form textarea { resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--ink); }
.contact-form button { margin-top: 10px; justify-self: start; font-size: 15px; padding: 11px 18px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.policy { max-width: 760px; padding-top: 40px; padding-bottom: 48px; }
.policy h1 { font-size: clamp(32px, 5vw, 44px); margin-bottom: 4px; }
.policy h2 { font-family: var(--serif); font-size: 22px; margin: 28px 0 8px; }
.policy p, .policy li { color: var(--ink-soft); }
.policy .plain li, .plain-ol li { margin-bottom: 8px; }
.policy a:not(.button-link) { color: var(--ink); font-weight: 600; }

.foot .wrap { display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; align-items: baseline; }
.foot p { margin: 0; }
.foot-links { display: flex; gap: 16px; flex-wrap: wrap; }
.foot-links a { color: var(--ink-soft); }

@media (max-width: 820px) {
  .products, .about { grid-template-columns: 1fr; }
}

.early-form { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.early-form input[type="email"] {
  flex: 1 1 180px; min-width: 0; font: inherit; font-size: 15px; padding: 10px 12px;
  border: 2px solid var(--line); border-radius: 10px; background: var(--paper); color: var(--ink);
}
.early-form input[type="email"]:focus { outline: none; border-color: var(--ink); }
.early-form button { font-size: 15px; padding: 10px 16px; }

.price .was { color: var(--ink-soft); font-weight: 600; font-size: 16px; margin-right: 4px; }
.launch-note { margin: 0 0 8px; font-size: 13px; font-weight: 700; color: var(--accent-ink); background: var(--warn-bg); border-radius: 8px; padding: 6px 10px; align-self: flex-start; }