/* VisiScan landing — editorial light theme, shared design system with the consultative
   report (Fraunces display + Inter body, ink/paper/line/primary tokens from /api/brand.css).
   Fast by design: no WebGL, no scroll libraries, only native CSS scroll-driven reveals. */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  /* Fallbacks in case /api/brand.css is unavailable — mirror the brand's editorial tokens. */
  --primary: #4338ca; --accent: #0891b2; --green: #15803d; --yellow: #b45309; --red: #dc2626;
  --ink: #151824; --ink-soft: #565d72; --paper: #ffffff; --paper-2: #f7f8fc; --line: #e6e8f1;
  --primary-tint: #f3f2fb; --primary-tint-2: #e7e6f7; --primary-line: #d6d3f0; --primary-ink: #2e2470;
  --font-display: "Fraunces", Georgia, serif; --font-body: "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
  --maxw: 1080px;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body); background: var(--paper-2); color: var(--ink);
  line-height: 1.62; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; letter-spacing: -.014em; line-height: 1.12; }
p { text-wrap: pretty; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.hidden { display: none !important; }
.accent { color: var(--primary); }
.kicker { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; color: var(--primary); margin-bottom: 14px; }
.lead { color: var(--ink-soft); font-size: 17px; max-width: 640px; }

/* ---- header ---- */
.site-header { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--paper) 82%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-header-inner { max-width: var(--maxw); margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; gap: 22px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo:hover { text-decoration: none; }
.logo-mark { display: inline-flex; }
.logo-mark svg { width: 26px; height: 26px; }
.logo-name { font-family: var(--font-display); font-weight: 600; font-size: 19px; color: var(--ink); letter-spacing: -.02em; }
.site-nav { display: flex; gap: 26px; margin-left: 12px; }
.site-nav a { color: var(--ink-soft); font-size: 14px; font-weight: 500; }
.site-nav a:hover { color: var(--ink); text-decoration: none; }
.header-right { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.header-badge { font-size: 10.5px; font-weight: 600; letter-spacing: .06em; color: var(--ink-soft); border: 1px solid var(--line); padding: 5px 11px; border-radius: 999px; }
.lang-toggle { display: flex; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }
.lang-btn { background: var(--paper); color: var(--ink-soft); border: none; padding: 6px 12px; font: inherit; font-size: 12px; font-weight: 600; cursor: pointer; }
.lang-btn.active { background: var(--primary); color: #fff; }

/* ---- hero ---- */
.hero { max-width: var(--maxw); margin: 0 auto; padding: clamp(56px, 11vh, 104px) 24px 40px; }
.hero-inner { max-width: 760px; }
.hero-kicker { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--primary); background: var(--primary-tint); border: 1px solid var(--primary-line); border-radius: 999px; padding: 6px 14px; margin-bottom: 22px; }
.hero h1 { font-size: clamp(34px, 6.2vw, 60px); line-height: 1.04; letter-spacing: -.025em; color: var(--ink); }
.hero-sub { color: var(--ink-soft); font-size: clamp(16px, 2.2vw, 19px); max-width: 600px; margin: 22px 0 30px; }
.audit-bar { display: flex; gap: 12px; max-width: 620px; }
.input-wrap { position: relative; flex: 1; }
.input-icon { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--ink-soft); }
#url-input { width: 100%; padding: 16px 16px 16px 46px; border: 1px solid var(--line); border-radius: 13px; background: var(--paper); color: var(--ink); font: inherit; font-size: 16px; box-shadow: 0 1px 2px rgba(21,24,36,.04); }
#url-input::placeholder { color: color-mix(in srgb, var(--ink-soft) 75%, #fff); }
#url-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-tint-2); }
#btn-audit { display: flex; align-items: center; gap: 8px; padding: 16px 28px; border: none; border-radius: 13px; background: var(--primary); color: #fff; font: inherit; font-weight: 600; font-size: 16px; cursor: pointer; box-shadow: 0 10px 24px -12px color-mix(in srgb, var(--primary) 70%, transparent); transition: transform .12s ease, background .15s ease; }
#btn-audit:hover { background: var(--primary-ink); transform: translateY(-1px); }
#btn-audit:disabled { opacity: .7; cursor: default; transform: none; }
.hero-hint { margin-top: 15px; color: var(--ink-soft); font-size: 14px; min-height: 20px; }
.hero-hint.error { color: var(--red); }
.hero-proof { margin-top: 20px; color: var(--ink-soft); font-size: 13px; font-weight: 500; letter-spacing: .01em; }

/* spinner */
.btn-spinner { width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.45); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- results ---- */
.results { max-width: var(--maxw); margin: 0 auto; padding: 8px 24px 40px; }
.results-inner { background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: clamp(22px, 4vw, 40px); box-shadow: 0 1px 3px rgba(21,24,36,.05), 0 24px 60px -40px rgba(21,24,36,.35); }
.score-section { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.score-ring-wrap { position: relative; width: 160px; height: 160px; flex-shrink: 0; }
.score-ring circle { transition: stroke-dashoffset 1.4s ease, stroke .4s ease; }
.score-value { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 48px; font-weight: 600; letter-spacing: -.02em; }
.score-meta h2 { font-size: 24px; color: var(--ink); word-break: break-word; }
.score-meta > p { color: var(--ink-soft); margin: 6px 0 16px; font-size: 15.5px; }
.score-stats { display: flex; gap: 30px; }
.stat { display: flex; flex-direction: column; }
.stat-num { font-family: var(--font-display); font-size: 27px; font-weight: 600; }
.stat:nth-child(1) .stat-num { color: var(--green); }
.stat:nth-child(2) .stat-num { color: var(--yellow); }
.stat:nth-child(3) .stat-num { color: var(--red); }
.stat-label { font-size: 11.5px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; }
.score-duration { margin-top: 15px; font-size: 12px; color: var(--ink-soft); }
.score-badges { margin-top: 11px; display: flex; gap: 8px; flex-wrap: wrap; }
.badge { font-size: 11px; padding: 3px 10px; border-radius: 999px; background: var(--paper-2); border: 1px solid var(--line); color: var(--ink-soft); }
.badge.active { color: var(--primary-ink); border-color: var(--primary-line); background: var(--primary-tint); }

.narrative { background: var(--primary-tint); border: 1px solid var(--primary-line); border-left: 3px solid var(--primary); border-radius: 12px; padding: 18px 22px; margin: 24px 0; color: var(--primary-ink); white-space: pre-line; font-size: 14.5px; line-height: 1.6; }

/* verdict + citation */
.verdict { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 22px 24px; margin: 18px 0; }
.citation-card { border-left: 3px solid var(--accent); }
.verdict-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.verdict-header h3 { font-size: 18px; color: var(--ink); }
.score-pill { margin-left: auto; background: var(--primary); color: #fff; padding: 4px 13px; border-radius: 999px; font-family: var(--font-display); font-weight: 600; font-size: 14px; }
.verdict > p { color: var(--ink-soft); font-size: 14.5px; }
.verdict-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 16px; }
.verdict-grid h4 { font-size: 13px; margin-bottom: 7px; color: var(--ink); }
.verdict-grid ul, .verdict-grid ol { padding-left: 18px; }
.verdict-grid li { font-size: 13px; color: var(--ink-soft); margin-bottom: 6px; line-height: 1.5; }
.verdict-grid li.dim { list-style: none; margin-left: -18px; }
.cit-brand-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 12px 0; }
.cit-brand-row label { font-size: 13px; color: var(--ink-soft); }
.cit-brand-row input { flex: 1; min-width: 160px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 9px; background: var(--paper-2); color: var(--ink); font: inherit; }
.cit-brand-row input:focus { outline: none; border-color: var(--primary); }
#cit-probe-result p, #cit-full-result p { margin: 6px 0; font-size: 14px; color: var(--ink-soft); }
.cit-snippet { font-style: italic; border-left: 2px solid var(--line); padding-left: 12px; }
.cit-hint { font-size: 12.5px; color: var(--ink-soft); }
.cit-yes { color: var(--green); } .cit-no { color: var(--red); }
.cit-table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 13px; }
.cit-table td { padding: 6px 8px; border-bottom: 1px solid var(--line); color: var(--ink); }
.btn-ghost { background: var(--paper); border: 1px solid var(--line); color: var(--ink); padding: 9px 15px; border-radius: 9px; font: inherit; font-weight: 500; cursor: pointer; }
.btn-ghost:hover { background: var(--paper-2); }
.btn-unlock { margin-top: 12px; background: var(--primary-tint); border: 1px dashed var(--primary-line); color: var(--primary-ink); padding: 12px 16px; border-radius: 11px; font: inherit; font-weight: 600; cursor: pointer; width: 100%; }
.btn-unlock:hover { background: var(--primary-tint-2); }

/* tabs + checks */
.cat-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 26px 0 16px; }
.cat-tab { background: var(--paper); border: 1px solid var(--line); color: var(--ink-soft); padding: 8px 14px; border-radius: 999px; font: inherit; font-size: 13px; font-weight: 500; cursor: pointer; }
.cat-tab.active { color: var(--primary-ink); border-color: var(--primary-line); background: var(--primary-tint); }
.cat-count { opacity: .65; font-size: 12px; }
.checks-grid { display: flex; flex-direction: column; gap: 8px; }
.check-card { display: flex; gap: 14px; align-items: flex-start; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; animation: fadein .3s ease both; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.check-bar { width: 4px; align-self: stretch; border-radius: 4px; flex-shrink: 0; }
.check-bar.pass { background: var(--green); } .check-bar.warn { background: var(--yellow); } .check-bar.fail { background: var(--red); } .check-bar.info { background: var(--ink-soft); }
.check-body { flex: 1; min-width: 0; }
.check-label { font-weight: 600; font-size: 14.5px; color: var(--ink); }
.check-detail { color: var(--ink-soft); font-size: 13px; margin-top: 3px; }
.check-right { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; flex-shrink: 0; text-align: right; }
.check-badge { font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 999px; }
.check-badge.pass { background: color-mix(in srgb, var(--green) 12%, #fff); color: var(--green); }
.check-badge.warn { background: color-mix(in srgb, var(--yellow) 14%, #fff); color: var(--yellow); }
.check-badge.fail { background: color-mix(in srgb, var(--red) 12%, #fff); color: var(--red); }
.check-badge.info { background: var(--paper-2); color: var(--ink-soft); }
.check-value { font-size: 12px; color: var(--ink-soft); max-width: 200px; }
.check-score { font-size: 12px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }

/* pdf cta + history */
.pdf-cta { text-align: center; margin: 30px 0 6px; }
.btn-pdf { display: inline-flex; align-items: center; gap: 10px; background: var(--primary); color: #fff; border: none; padding: 15px 30px; border-radius: 13px; font: inherit; font-weight: 600; font-size: 16px; cursor: pointer; box-shadow: 0 10px 24px -12px color-mix(in srgb, var(--primary) 70%, transparent); }
.btn-pdf:hover { background: var(--primary-ink); }
.history-panel { background: var(--paper-2); border: 1px solid var(--line); border-radius: 14px; padding: 20px 24px; margin-top: 24px; }
.history-panel h3 { font-size: 15px; margin-bottom: 12px; color: var(--ink); }
.history-row { display: grid; grid-template-columns: 1fr 2fr auto; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 13px; align-items: center; }
.history-date { color: var(--ink-soft); }
.history-url { color: var(--ink-soft); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-score { font-weight: 700; font-variant-numeric: tabular-nums; }
.history-score.good { color: var(--green); } .history-score.mid { color: var(--yellow); } .history-score.bad { color: var(--red); }

/* ---- editorial content sections ---- */
.section-inner { max-width: var(--maxw); margin: 0 auto; padding: clamp(56px, 9vh, 96px) 24px; }
.section-head { max-width: 680px; margin-bottom: 42px; }
.section-head h2, .explain h2 { font-size: clamp(26px, 4vw, 40px); color: var(--ink); letter-spacing: -.02em; }
.section-head .lead { margin-top: 14px; }

.explain .section-inner { padding-bottom: clamp(30px, 5vh, 50px); }
.explain h2 { max-width: 720px; }
.explain .lead { margin-top: 18px; }
.explain .lead + .lead { margin-top: 14px; }

/* how it works */
.steps { background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.step-grid { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step { background: var(--paper-2); border: 1px solid var(--line); border-radius: 16px; padding: 28px 26px; }
.step-n { font-family: var(--font-display); font-size: 15px; font-weight: 600; color: var(--primary); font-variant-numeric: tabular-nums; display: inline-block; margin-bottom: 14px; padding: 3px 11px; background: var(--primary-tint); border: 1px solid var(--primary-line); border-radius: 999px; }
.step h3 { font-size: 20px; color: var(--ink); margin-bottom: 8px; }
.step p { color: var(--ink-soft); font-size: 14.5px; }

/* what we check */
.front-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.front { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 30px 26px; position: relative; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.front:hover { transform: translateY(-3px); border-color: var(--primary-line); box-shadow: 0 20px 44px -30px rgba(21,24,36,.4); }
.front-tag { display: inline-block; font-family: var(--font-display); font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--primary-ink); background: var(--primary-tint); border: 1px solid var(--primary-line); border-radius: 8px; padding: 4px 11px; margin-bottom: 16px; }
.front h3 { font-size: 20px; color: var(--ink); margin-bottom: 9px; }
.front p { color: var(--ink-soft); font-size: 14.5px; }

/* closing */
.closing { max-width: var(--maxw); margin: 0 auto; padding: clamp(40px, 8vh, 80px) 24px clamp(60px, 10vh, 100px); }
.closing-card { background: linear-gradient(125deg, var(--primary), var(--primary-ink)); border-radius: 24px; padding: clamp(40px, 6vw, 64px); text-align: center; position: relative; overflow: hidden; }
.closing-card::after { content: ""; position: absolute; right: -60px; top: -60px; width: 240px; height: 240px; border-radius: 50%; background: rgba(255,255,255,.08); }
.closing-card h2 { color: #fff; font-size: clamp(26px, 4vw, 40px); position: relative; }
.closing-card p { color: rgba(255,255,255,.9); font-size: 17px; max-width: 560px; margin: 16px auto 28px; position: relative; }
.closing-btn { position: relative; background: #fff; color: var(--primary-ink); border: none; padding: 15px 32px; border-radius: 13px; font: inherit; font-weight: 600; font-size: 16px; cursor: pointer; transition: transform .12s ease; }
.closing-btn:hover { transform: translateY(-2px); }

/* ---- footer ---- */
.footer { border-top: 1px solid var(--line); background: var(--paper); }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 34px 24px; text-align: center; color: var(--ink-soft); font-size: 13px; }
.footer-brand { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 10px; color: var(--ink); }
.footer-brand .logo-mark svg { width: 20px; height: 20px; }
.footer p { margin: 4px 0; }

/* ---- modal ---- */
.modal { border: 1px solid var(--line); border-radius: 18px; background: var(--paper); color: var(--ink); padding: 0; max-width: 440px; width: 92%; box-shadow: 0 30px 80px -30px rgba(21,24,36,.5); }
.modal::backdrop { background: rgba(21,24,36,.45); backdrop-filter: blur(4px); }
.modal-header { padding: 24px 26px 6px; }
.modal-header h3 { font-size: 19px; color: var(--ink); }
.modal-sub { color: var(--ink-soft); font-size: 13.5px; margin-top: 7px; }
.modal-body { padding: 18px 26px; display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field-label { font-size: 13px; color: var(--ink-soft); font-weight: 500; }
.field input[type=text], .field input[type=email], .field input[type=tel] { padding: 12px 13px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper-2); color: var(--ink); font: inherit; }
.field input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-tint-2); }
.field-error { color: var(--red); font-size: 12px; min-height: 14px; }
.checkbox-field { flex-direction: row; align-items: flex-start; gap: 9px; font-size: 13px; color: var(--ink-soft); }
.checkbox-field input { margin-top: 3px; }
.global-error { color: var(--red); font-size: 13px; padding: 10px 13px; background: color-mix(in srgb, var(--red) 8%, #fff); border: 1px solid color-mix(in srgb, var(--red) 22%, #fff); border-radius: 9px; }
.modal-footer { padding: 14px 26px 24px; display: flex; justify-content: flex-end; gap: 10px; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; border: none; padding: 12px 22px; border-radius: 11px; font: inherit; font-weight: 600; cursor: pointer; }
.btn-primary:hover { background: var(--primary-ink); }

/* toast */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--green); color: #fff; padding: 12px 22px; border-radius: 11px; font-weight: 600; z-index: 50; animation: fadein .2s ease; box-shadow: 0 14px 40px -16px rgba(21,24,36,.5); }

/* ---- scroll-driven reveals (native, bidirectional, zero JS) ---- */
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .reveal { animation: reveal-up linear both; animation-timeline: view(); animation-range: entry 2% cover 22%; }
    @keyframes reveal-up { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }
  }
}

/* ---- responsive ---- */
@media (max-width: 860px) {
  .site-nav { display: none; }
  .step-grid, .front-grid { grid-template-columns: 1fr; }
  .verdict-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .audit-bar { flex-direction: column; }
  .score-section { gap: 24px; justify-content: center; text-align: center; }
  .score-stats { justify-content: center; }
  .check-right { flex-direction: row; align-items: center; }
  .header-badge { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}