:root {
  --paper: #f4f1ea;
  --paper-deep: #ebe6dc;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #fbfaf7;
  --ink: #20231f;
  --ink-soft: #5e625a;
  --line: rgba(32, 35, 31, 0.14);
  --line-strong: rgba(32, 35, 31, 0.24);
  --moss: #68705d;
  --moss-deep: #444b3d;
  --sage: #dce0d4;
  --sand: #e8ddcd;
  --clay: #d7c5b4;
  --mist: #dfe3df;
  --warn: #8a5a48;
  --shadow: 0 22px 70px rgba(45, 42, 34, 0.10);
  --radius-lg: 30px;
  --radius-md: 20px;
  --radius-sm: 12px;
  --shell: 1180px;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.5; -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: -1; background: radial-gradient(circle at 12% 9%, rgba(255,255,255,.9), transparent 28%), radial-gradient(circle at 88% 13%, rgba(205,210,194,.58), transparent 25%), linear-gradient(180deg, #f6f3ed 0%, #f2eee6 55%, #eee9df 100%); }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
.shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 99; padding: 10px 14px; background: var(--ink); color: white; border-radius: 8px; }
.skip-link:focus { top: 16px; }

.topbar { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; min-height: 86px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: flex; gap: 12px; align-items: center; }
.brand-mark { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--paper); font-family: var(--serif); font-size: 22px; }
.brand-copy { display: grid; line-height: 1.05; gap: 4px; }
.brand-copy strong { letter-spacing: .16em; font-size: 13px; }
.brand-copy span { color: var(--ink-soft); font-size: 11px; }
.topnav { display: flex; align-items: center; gap: 30px; color: var(--ink-soft); font-size: 13px; }
.topnav a:hover { color: var(--ink); }
.nav-cta { border: 1px solid var(--line-strong); padding: 10px 15px; border-radius: 999px; color: var(--ink) !important; }

.hero { min-height: 650px; padding: 86px 0 74px; display: grid; grid-template-columns: 1.08fr .92fr; gap: 78px; align-items: center; }
.eyebrow { margin: 0 0 15px; text-transform: uppercase; letter-spacing: .18em; font-weight: 700; color: var(--moss-deep); font-size: 11px; }
.hero h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(64px, 7.2vw, 104px); line-height: .9; letter-spacing: -.055em; margin: 0; }
.hero-lead { max-width: 620px; margin: 30px 0 0; color: var(--ink-soft); font-size: 19px; line-height: 1.55; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.button { border: 0; cursor: pointer; min-height: 48px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 0 21px; font-size: 14px; transition: transform .18s ease, background .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--ink); color: #fff; }
.button-primary:hover { background: #343832; }
.button-quiet { background: transparent; border: 1px solid var(--line-strong); }
.text-button { border: 0; background: transparent; cursor: pointer; color: var(--ink-soft); padding: 10px; font-size: 13px; }
.text-button:hover { color: var(--ink); }
.trust-row { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--ink-soft); font-size: 11px; }
.trust-row span::before { content: "·"; color: var(--moss); margin-right: 8px; font-weight: 900; }

.map-preview { position: relative; padding: 20px; border: 1px solid rgba(32,35,31,.11); border-radius: var(--radius-lg); background: rgba(251,250,247,.76); box-shadow: var(--shadow); backdrop-filter: blur(20px); transform: rotate(1deg); }
.map-preview::after { content: ""; position: absolute; width: 170px; height: 170px; right: -55px; top: -45px; background: rgba(104,112,93,.13); border-radius: 50%; filter: blur(2px); z-index: -1; }
.map-preview-head { padding: 0 4px 16px; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--line); font-size: 12px; font-weight: 700; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--moss); }
.map-preview-meta { margin-left: auto; color: var(--ink-soft); font-weight: 500; }
.map-flow { padding: 18px 0 2px; display: grid; gap: 10px; }
.mini-card { border-radius: 15px; padding: 16px 17px; border: 1px solid var(--line); background: rgba(255,255,255,.72); }
.mini-card p { margin: 6px 0 0; font-size: 13px; line-height: 1.45; }
.mini-kicker { font-size: 9px; font-weight: 800; letter-spacing: .16em; color: var(--ink-soft); }
.mini-fact { margin-right: 62px; }
.mini-assumption { margin-left: 38px; background: #eee4d7; }
.mini-unknown { margin-right: 26px; background: #e8ebe5; }
.map-arrow { text-align: center; color: var(--moss); font-size: 20px; line-height: 1; }
.mini-next { background: var(--ink); color: white; border-color: var(--ink); margin-left: 20px; }
.mini-next .mini-kicker { color: #cbd0c4; }

.principles { padding: 85px 0 95px; border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: .9fr 1.1fr; column-gap: 60px; align-items: end; }
.section-heading .eyebrow { grid-column: 1 / -1; }
.section-heading h2, .workspace h2, .results h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -.035em; }
.section-heading h2 { font-size: clamp(42px, 5vw, 68px); line-height: 1; margin: 0; }
.section-heading > p:last-child { margin: 0; max-width: 570px; color: var(--ink-soft); font-size: 17px; }
.principle-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; margin-top: 48px; }
.principle-grid article { min-height: 210px; border-top: 1px solid var(--line-strong); padding: 20px 8px 12px 0; }
.principle-grid article > span { font-family: var(--serif); font-size: 13px; color: var(--moss); }
.principle-grid h3 { margin: 36px 0 8px; font-size: 17px; }
.principle-grid p { color: var(--ink-soft); font-size: 13px; margin: 0; }

.workspace { scroll-margin-top: 20px; background: var(--surface-solid); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius-lg); padding: 45px; margin-bottom: 88px; }
.workspace-heading { display: flex; justify-content: space-between; gap: 24px; align-items: flex-end; margin-bottom: 36px; }
.workspace-heading h2 { margin: 0; font-size: 52px; line-height: 1; }
.mode-control { background: var(--paper-deep); padding: 4px; border-radius: 999px; display: flex; gap: 3px; }
.mode-button { border: 0; background: transparent; border-radius: 999px; padding: 9px 14px; cursor: pointer; font-size: 12px; color: var(--ink-soft); }
.mode-button.is-active { background: white; color: var(--ink); box-shadow: 0 2px 9px rgba(32,35,31,.07); }
.analysis-form { display: grid; gap: 25px; }
.field { display: grid; gap: 8px; }
.field-label { font-size: 12px; font-weight: 750; letter-spacing: .01em; }
.field-label em { font-style: normal; font-weight: 500; color: var(--ink-soft); }
.field-help { color: var(--ink-soft); font-size: 12px; }
.field-help.compact { margin-top: -4px; }
.field input, .field textarea { width: 100%; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 13px 14px; background: #f8f6f1; color: var(--ink); outline: none; transition: border-color .18s, box-shadow .18s, background .18s; }
.field textarea { resize: vertical; min-height: 215px; line-height: 1.55; }
.field input:focus, .field textarea:focus { background: white; border-color: var(--moss); box-shadow: 0 0 0 3px rgba(104,112,93,.12); }
.field-footer { justify-self: end; margin-top: -2px; color: var(--ink-soft); font-size: 10px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-footer { border-top: 1px solid var(--line); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.privacy-note { display: flex; gap: 10px; align-items: flex-start; max-width: 600px; color: var(--ink-soft); font-size: 11px; }
.privacy-note strong { color: var(--ink); }
.privacy-icon { width: 20px; height: 20px; border: 1px solid var(--line-strong); border-radius: 50%; display: grid; place-items: center; flex: 0 0 auto; color: var(--moss); }
.form-actions { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.analyze-button.is-loading { pointer-events: none; opacity: .78; }
.button-spinner { display: none; width: 14px; height: 14px; border: 2px solid rgba(255,255,255,.35); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
.analyze-button.is-loading .button-spinner { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }
.error-box { margin-top: 22px; padding: 14px 16px; border: 1px solid rgba(138,90,72,.26); color: #6d4637; background: #f4e8e1; border-radius: 12px; font-size: 13px; }

.results { scroll-margin-top: 30px; padding: 14px 0 95px; }
.results[hidden] { display: none; }
.results-topline { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 28px; }
.results-topline h2 { margin: 0; font-size: 56px; }
.result-meta { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.meta-badge { border: 1px solid var(--line-strong); border-radius: 999px; padding: 7px 11px; font-size: 10px; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.meta-muted { color: var(--ink-soft); border-color: var(--line); }
.summary-card { padding: 30px 32px; background: var(--ink); color: #f8f6f0; border-radius: var(--radius-md); margin-bottom: 16px; }
.card-label, .sub-label { text-transform: uppercase; letter-spacing: .15em; font-size: 9px; font-weight: 800; color: #c8cec0; }
.summary-card > p:not(.confidence-reason) { font-family: var(--serif); font-size: clamp(24px, 3vw, 36px); line-height: 1.2; margin: 16px 0; }
.confidence-reason { margin: 0; color: #c8cbc5; font-size: 12px; }
.evidence-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-bottom: 16px; }
.evidence-panel { border-radius: var(--radius-md); border: 1px solid var(--line); padding: 22px; background: rgba(255,255,255,.46); }
.evidence-assumptions { background: #efe6da; }
.evidence-unknowns { background: #e8ebe5; }
.panel-head { display: flex; gap: 12px; align-items: flex-start; padding-bottom: 17px; border-bottom: 1px solid var(--line); }
.panel-index { width: 28px; height: 28px; border: 1px solid var(--line-strong); border-radius: 50%; display: grid; place-items: center; font-family: var(--serif); flex: 0 0 auto; }
.panel-head h3 { font-size: 14px; margin: 1px 0 2px; }
.panel-head p { margin: 0; color: var(--ink-soft); font-size: 10px; }
.evidence-list { display: grid; gap: 0; }
.evidence-item { padding: 14px 0; border-bottom: 1px solid var(--line); }
.evidence-item:last-child { border-bottom: 0; padding-bottom: 0; }
.evidence-id { display: inline-flex; margin-bottom: 7px; color: var(--ink-soft); font-size: 9px; font-weight: 800; letter-spacing: .08em; }
.evidence-item p { margin: 0; font-size: 12px; line-height: 1.45; }
.empty-state { color: var(--ink-soft); font-size: 12px; padding: 14px 0 0; }

.result-section { margin-top: 16px; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 26px; background: rgba(251,250,247,.65); }
.result-section-head { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 21px; }
.result-section-head > span { font-family: var(--serif); color: var(--moss); font-size: 13px; }
.result-section-head h3 { margin: 0 0 3px; font-size: 16px; }
.result-section-head p { margin: 0; color: var(--ink-soft); font-size: 11px; }
.tension-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.tension-card { border-top: 1px solid var(--line-strong); padding: 15px 4px 4px 0; }
.tension-card h4 { margin: 0 0 5px; font-size: 13px; }
.tension-card p { margin: 0; color: var(--ink-soft); font-size: 12px; }
.ref-row { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 10px; }
.ref-chip { border: 1px solid var(--line); border-radius: 999px; padding: 2px 6px; font-size: 8px; color: var(--ink-soft); }

.recommendation-block { margin-top: 16px; padding: 36px; background: var(--moss-deep); color: #f6f4ee; border-radius: var(--radius-md); position: relative; overflow: hidden; }
.recommendation-block::after { content: "A"; position: absolute; right: 28px; top: -48px; font-family: var(--serif); font-size: 210px; line-height: 1; color: rgba(255,255,255,.035); }
.recommendation-kicker { text-transform: uppercase; letter-spacing: .16em; color: #cbd0c4; font-size: 9px; font-weight: 800; }
.recommendation-block h3 { max-width: 780px; margin: 14px 0 10px; font-family: var(--serif); font-size: clamp(30px, 4vw, 48px); line-height: 1.06; font-weight: 400; letter-spacing: -.025em; position: relative; z-index: 1; }
.recommendation-block > p { max-width: 760px; margin: 0; color: #dfe2da; font-size: 13px; position: relative; z-index: 1; }
.first-step { margin-top: 25px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.17); max-width: 760px; position: relative; z-index: 1; }
.first-step span { text-transform: uppercase; letter-spacing: .12em; color: #cbd0c4; font-size: 8px; font-weight: 800; }
.first-step p { margin: 5px 0 0; font-size: 13px; }
.options-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; }
.option-card { border: 1px solid var(--line); border-radius: 15px; padding: 18px; background: rgba(255,255,255,.48); }
.option-top { display: flex; gap: 12px; justify-content: space-between; }
.option-card h4 { margin: 0; font-size: 13px; }
.reversibility { white-space: nowrap; font-size: 8px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); border: 1px solid var(--line); border-radius: 999px; padding: 4px 6px; align-self: flex-start; }
.option-action { margin: 8px 0 14px; color: var(--ink-soft); font-size: 12px; }
.option-lists { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.option-lists span { display: block; font-size: 9px; text-transform: uppercase; letter-spacing: .09em; font-weight: 800; margin-bottom: 6px; }
ul.clean-list, .option-lists ul, .conversation-columns ul { margin: 0; padding-left: 16px; color: var(--ink-soft); font-size: 11px; }
.option-lists li + li, .conversation-columns li + li { margin-top: 4px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.compact-section { min-width: 0; }
.stack-list { display: grid; gap: 9px; }
.stack-card { border-top: 1px solid var(--line); padding-top: 12px; }
.stack-card h4 { margin: 0 0 5px; font-size: 12px; }
.stack-card p { margin: 0; color: var(--ink-soft); font-size: 11px; }
.stack-card .stack-meta { margin-top: 7px; font-size: 10px; color: var(--ink-soft); }

.conversation-card { margin-top: 16px; background: #e6dfd2; border-radius: var(--radius-md); padding: 30px; border: 1px solid var(--line); }
.conversation-head { display: flex; gap: 14px; align-items: flex-start; }
.conversation-icon { width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; }
.conversation-card .card-label { color: var(--ink-soft); }
.conversation-card h3 { margin: 3px 0 0; font-size: 16px; }
.conversation-card blockquote { font-family: var(--serif); font-size: clamp(23px, 3vw, 34px); line-height: 1.25; max-width: 900px; margin: 30px 0; padding: 0; }
.conversation-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; border-top: 1px solid var(--line); padding-top: 20px; }
.conversation-columns .sub-label { color: var(--ink-soft); display: block; margin-bottom: 8px; }
.conversation-columns p { margin: 0; font-size: 12px; }
.spacing-top { margin-top: 18px; }
.detail-bottom { margin-top: 0; }
.results-footer { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.results-footer p { color: var(--ink-soft); font-size: 11px; margin: 0; }

.footer { min-height: 116px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 28px; align-items: center; color: var(--ink-soft); font-size: 10px; }
.footer > div { display: flex; gap: 16px; align-items: center; }
.footer strong { color: var(--ink); letter-spacing: .15em; }
.footer a { color: var(--ink); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 50px; padding-top: 60px; }
  .hero-copy { max-width: 720px; }
  .map-preview { max-width: 620px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .principle-grid { grid-template-columns: 1fr 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; gap: 0; }
  .options-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .shell, .topbar { width: min(calc(100% - 28px), var(--shell)); }
  .topbar { min-height: 72px; }
  .brand-copy span, .topnav > a:not(.nav-cta) { display: none; }
  .nav-cta { padding: 9px 12px; }
  .hero { min-height: auto; padding: 58px 0 60px; gap: 38px; }
  .hero h1 { font-size: clamp(58px, 18vw, 78px); }
  .hero-lead { font-size: 16px; margin-top: 24px; }
  .hero-actions .button { flex: 1 1 auto; }
  .trust-row { display: grid; gap: 6px; }
  .map-preview { padding: 14px; border-radius: 22px; transform: none; }
  .mini-fact, .mini-assumption, .mini-unknown, .mini-next { margin-left: 0; margin-right: 0; }
  .principles { padding: 68px 0; }
  .principle-grid { grid-template-columns: 1fr 1fr; gap: 0 14px; }
  .principle-grid article { min-height: 180px; }
  .workspace { width: 100%; border-left: 0; border-right: 0; border-radius: 0; padding: 30px 20px; margin-bottom: 65px; }
  .workspace-heading { align-items: flex-start; flex-direction: column; }
  .workspace-heading h2 { font-size: 43px; }
  .mode-control { width: 100%; }
  .mode-button { flex: 1; }
  .form-grid { grid-template-columns: 1fr; }
  .form-footer { align-items: stretch; flex-direction: column; }
  .form-actions { justify-content: flex-end; }
  .analyze-button { flex: 1; }
  .results { padding-bottom: 70px; }
  .results-topline { align-items: flex-start; flex-direction: column; }
  .results-topline h2 { font-size: 47px; }
  .result-meta { justify-content: flex-start; }
  .summary-card, .recommendation-block, .conversation-card { padding: 24px; }
  .evidence-panel, .result-section { padding: 20px; }
  .tension-grid { grid-template-columns: 1fr; }
  .conversation-columns, .option-lists { grid-template-columns: 1fr; }
  .results-footer { align-items: stretch; flex-direction: column; }
  .footer { padding: 30px 0; align-items: flex-start; flex-direction: column; }
  .footer > div { align-items: flex-start; flex-direction: column; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}