@font-face{font-family:Geist;src:url(/fonts/geist-latin-variable.woff2) format("woff2");font-style:normal;font-weight:100 900;font-display:swap}
:root {
  color-scheme: light;
  --background: #fbfaf8;
  --foreground: #111318;
  --card: #ffffff;
  --surface: #f4f5f7;
  --surface-2: #f9ebed;
  --muted: #505762;
  --border: #dee2e7;
  --brand: #b51f2a;
  --brand-hover: #981a24;
  --brand-soft: #f9ebed;
  --brand-foreground: #ffffff;
  --signal: #bd6b28;
  --signal-soft: #fff2df;
  --reported: #237b5b;
  --reported-soft: #e5f5ee;
  --danger: #a54637;
  --danger-soft: #fbeae7;
  --radius: 6px;
  --content: 1120px;
  --header-height: 58px;
  --shadow: 0 1px 2px rgba(23, 17, 43, .05);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 116px; }
body {
  margin: 0;
  color: var(--foreground);
  background: var(--background);
  font: 400 16px/1.65 Geist, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-underline-offset: 3px; }
h1, h2, h3, h4 {
  margin-top: 0;
  font-family: Geist, ui-sans-serif, system-ui, sans-serif;
  letter-spacing: -.025em;
}
h1 { margin-bottom: 20px; font-size: clamp(2.25rem, 5.4vw, 4.25rem); line-height: 1.02; }
h2 { margin-bottom: 12px; font-size: clamp(1.55rem, 3vw, 2.15rem); line-height: 1.18; }
h3 { line-height: 1.35; }
p { margin-top: 0; }
.container, main { width: min(calc(100% - 40px), var(--content)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: var(--header-height);
  padding: 0 max(20px, calc((100vw - var(--content)) / 2));
  border-bottom: 1px solid var(--border);
  background: rgba(251, 250, 248, .97);
  backdrop-filter: blur(14px);
}
.site-header nav { display: flex; align-items: center; gap: 22px; }
.site-header a { color: var(--muted); font-size: .86rem; font-weight: 700; text-decoration: none; }
.site-header a:hover { color: var(--brand); }
.site-header .brand { color: var(--foreground); font-family: Geist, ui-sans-serif, system-ui, sans-serif; font-size: .95rem; }

.breadcrumb, .breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin: 25px 0 0; color: var(--muted); font-size: .78rem; }
.breadcrumb a, .breadcrumbs a { color: var(--muted); }
.crumb-sep { color: #a7a0b3; }

header:not(.site-header), .hero { max-width: 820px; margin: 0 auto; padding: 72px 0 56px; text-align: center; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.52fr) minmax(285px, .72fr);
  gap: clamp(36px, 6vw, 76px);
  align-items: start;
  padding: 54px 0 48px;
}
.hero-copy { padding-top: 8px; }
.hero-copy h1 { max-width: 780px; }
.hero-copy .lede { max-width: 740px; }
.eyebrow, .badge, .section-kicker, .readiness-label {
  display: inline-block;
  margin: 0 0 13px;
  color: var(--brand);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.subtitle, .lede { color: var(--muted); font-size: clamp(1rem, 2vw, 1.16rem); }
.subtitle.small { font-size: .96rem; }
.hero-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin: 28px 0 16px; }
.cta, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid var(--brand);
  border-radius: 9px;
  color: var(--brand-foreground);
  background: var(--brand);
  font-size: .88rem;
  font-weight: 750;
  text-decoration: none;
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}
.cta:hover, .button:hover { border-color: var(--brand-hover); background: var(--brand-hover); transform: translateY(-1px); }
.text-link, .ghost-link { color: var(--brand); font-size: .88rem; font-weight: 700; }
.trust-strip, .effort-line, .privacy-note { color: var(--muted); font-size: .82rem; }

.readiness-card {
  position: sticky;
  top: 82px;
  padding: 25px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}
.readiness-card dl { margin: 0 0 18px; }
.readiness-card dl > div { display: flex; justify-content: space-between; gap: 14px; padding: 11px 0; border-bottom: 1px solid var(--border); }
.readiness-card dt { color: var(--muted); font-size: .82rem; }
.readiness-card dd { margin: 0; text-align: right; font-size: .84rem; font-weight: 750; }
.readiness-card > p:last-child { margin: 0; color: var(--muted); font-size: .79rem; line-height: 1.55; }

.section-nav {
  position: sticky;
  top: var(--header-height);
  z-index: 30;
  display: flex;
  gap: 22px;
  overflow-x: auto;
  margin: 0;
  padding: 12px 0;
  border-block: 1px solid var(--border);
  background: rgba(251, 250, 255, .95);
  backdrop-filter: blur(12px);
  scrollbar-width: none;
}
.section-nav a { flex: 0 0 auto; color: var(--muted); font-size: .78rem; font-weight: 700; text-decoration: none; }
.section-nav a:hover { color: var(--brand); }

.section {
  margin: 0;
  padding: 52px 0;
  border-top: 1px solid var(--border);
  background: transparent;
  scroll-margin-top: 108px;
}
.section > p:not(.section-kicker), .section > .subtitle { max-width: 800px; }
.card {
  margin: 0 0 24px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
}
.quick-answer { border-top-color: var(--brand); }
.outcome-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 25px; }
.outcome-grid > div { display: flex; gap: 10px; padding: 16px; border: 1px solid var(--border); border-radius: 10px; background: var(--card); }
.outcome-grid span { color: var(--reported); font-weight: 900; }
.outcome-grid p { margin: 0; color: var(--foreground); font-size: .86rem; line-height: 1.5; }
.evidence-note { margin-top: 24px; padding: 16px 18px; border-left: 3px solid var(--reported); color: var(--muted); background: var(--reported-soft); font-size: .84rem; }

.matrix { overflow: hidden; margin-top: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); }
.matrix-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr; }
.matrix-row > * { padding: 16px 18px; border-bottom: 1px solid var(--border); }
.matrix-row > * + * { border-left: 1px solid var(--border); }
.matrix-row:last-child > * { border-bottom: 0; }
.matrix-head { color: var(--muted); background: var(--surface); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.preparation-table { width: 100%; border-collapse: collapse; text-align: left; }
.preparation-table th, .preparation-table td { padding: 16px 18px; border-bottom: 1px solid var(--border); vertical-align: top; }
.preparation-table thead { color: var(--muted); background: var(--surface); font-size: .75rem; }
.preparation-table tbody th { width: 25%; font-size: .9rem; }
.preparation-table td { color: var(--muted); font-size: .84rem; }
.preparation-table tr:last-child > * { border-bottom: 0; }
.content-provenance, .question-source { color: var(--muted); font-size: .8rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; padding: 12px 18px; background: var(--card); color: var(--foreground); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.matrix-row:not(.matrix-head) span { color: var(--muted); font-size: .84rem; }

.question-list { margin-top: 24px; display: grid; gap: 14px; }
.question-card { display: grid; grid-template-columns: 42px 1fr; gap: 17px; padding: 21px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow); }
.question-number { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 8px; color: var(--brand); background: var(--brand-soft); font-size: .7rem; font-weight: 850; }
.question-card h3 { margin: 5px 0 13px; font-size: 1.02rem; }
details { border-top: 1px solid var(--border); padding: 14px 0; }
summary { color: var(--foreground); cursor: pointer; font-weight: 700; }
details p { margin: 12px 0 0; color: var(--muted); }
.question-card details { border: 0; padding: 0; }
.question-card summary { color: var(--brand); font-size: .84rem; }
.trap { color: var(--danger); }

.evidence-lab { border-top-color: var(--signal); }
.evidence-lab > p:not(.section-kicker) { max-width: 820px; color: var(--muted); }
.lab-deliverables { margin-top: 24px; padding: 22px; border: 1px solid #f0d8b9; border-radius: var(--radius); background: var(--signal-soft); }
.lab-deliverables h3 { margin: 0 0 12px; font-size: 1rem; }
.lab-deliverables ul { display: grid; gap: 10px; margin: 0; padding-left: 20px; }

.grid, .related-grid, .rubric-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.link-card, .related-link { display: block; padding: 16px; border: 1px solid var(--border); border-radius: 10px; color: var(--foreground); background: var(--card); text-decoration: none; }
.link-card:hover, .related-link:hover { border-color: #a993d4; background: var(--brand-soft); }
.link-card span { display: block; color: var(--muted); font-size: .66rem; letter-spacing: .08em; text-transform: uppercase; }
.link-card strong { font-size: .86rem; }
.rubric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 24px; }
.rubric-grid > div { padding: 18px; border: 1px solid var(--border); border-radius: 10px; background: var(--card); }
.rubric-grid strong { display: block; font-size: 1.45rem; color: var(--brand); }
.rubric-grid span { color: var(--foreground); font-size: .82rem; font-weight: 700; }
.rubric-grid p { margin: 9px 0 0; color: var(--muted); font-size: .78rem; line-height: 1.5; }
.defense-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; padding: 0; margin: 25px 0; list-style: none; }
.defense-steps li { min-height: 125px; padding: 17px; border: 1px solid var(--border); border-radius: 10px; background: var(--card); }
.defense-steps strong, .defense-steps span { display: block; }
.defense-steps strong { margin-bottom: 8px; color: var(--brand); }
.defense-steps span { color: var(--muted); font-size: .82rem; }
.reference-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 24px; }
.reference-item { padding: 19px; border: 1px solid var(--border); border-radius: 10px; background: var(--card); }
.reference-item h3 { margin: 0 0 8px; font-size: .95rem; }
.reference-item p, .methodology-note { margin: 0; color: var(--muted); font-size: .82rem; }
.methodology-note { margin-top: 20px; }
.faq-inner > h2 { margin-bottom: 17px; }

.steps { padding: 0; list-style: none; display: grid; gap: 14px; }
.steps li { display: flex; gap: 12px; }
.steps strong { color: var(--brand); }
.topic-list { list-style: none; display: grid; gap: 10px; padding: 0; }
.topic-list li, .card > ul li { padding: 13px 0; border-bottom: 1px solid var(--border); }
.score-row { display: grid; grid-template-columns: 150px 1fr 34px; gap: 12px; align-items: center; margin: 12px 0; font-size: .84rem; }
.bar { height: 8px; overflow: hidden; border-radius: 99px; background: var(--surface-2); }
.fill { height: 100%; border-radius: inherit; background: var(--brand); }
.score-row b { text-align: right; }
.sources li { margin-bottom: 8px; }
.sources span { color: var(--muted); font-size: .78rem; }

.cta-card { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin: 42px 0; padding: 32px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--brand-soft); }
.cta-title { font: 750 1.45rem/1.25 Geist, ui-sans-serif, system-ui, sans-serif; }
.cta-desc { max-width: 650px; margin: 8px 0 0; color: var(--muted); }
.cta-card .button { flex: 0 0 auto; }

/* Interactive Quick-Quiz Block */
.quick-quiz { margin: 32px 0; }
.quiz-container { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-1); }
.quiz-question { font: 600 1.15rem/1.45 Geist, ui-sans-serif, system-ui, sans-serif; margin-bottom: 16px; color: var(--text); }
.quiz-reveal { margin-top: 12px; }
.quiz-reveal summary { display: inline-flex; cursor: pointer; padding: 8px 16px; font-weight: 600; border-radius: 6px; }
.quiz-answer { margin-top: 16px; padding: 16px; background: var(--surface-2); border-radius: 6px; border-left: 4px solid var(--brand); }
.quiz-answer p { margin: 0 0 8px; color: var(--text); line-height: 1.5; }

/* Position 0 Featured Snippet: Quick Solution Box */
.quick-solution-box {
  margin: 20px 0 24px;
  padding: 18px 20px;
  background: var(--surface-1);
  border-left: 4px solid #2563EB;
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}
.quick-solution-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.quick-solution-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 4px;
  background: #2563EB;
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.quick-solution-meta {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--muted);
}
.featured-solution-text {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  margin: 0 0 16px;
  font-weight: 500;
}
.cheat-sheet-table-wrapper {
  overflow-x: auto;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.cheat-sheet-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}
.cheat-sheet-table th {
  background: var(--surface-2);
  color: var(--brand);
  padding: 10px 14px;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.02em;
}
.cheat-sheet-table td {
  background: var(--surface-1);
  color: var(--text);
  padding: 10px 14px;
  border-top: 1px solid var(--border);
}

/* Dwell-Time Accelerator: Interactive 60-Second Micro-Widget */
.articulation-section {
  margin: 36px 0;
}
.articulation-subtitle {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 6px;
  margin-bottom: 20px;
}
.articulation-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.articulation-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.card-header {
  margin-bottom: 12px;
}
.card-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand);
  margin-bottom: 6px;
}
.card-header h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  color: var(--text);
}
.card-instructions {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--muted);
  margin: 0 0 16px;
}
.timer-actions {
  margin-top: auto;
}
.timer-countdown-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  gap: 8px;
  margin-top: 10px;
}
.timer-dial {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.timer-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.timer-unit {
  font-size: 0.9rem;
  color: var(--muted);
}
.timer-hint {
  font-size: 0.82rem;
  color: var(--text);
  margin: 0;
}
.faang-model-answer {
  margin-top: 16px;
  padding: 16px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 8px;
}
.model-answer-badge {
  font-size: 0.72rem;
  font-weight: 700;
  color: #10B981;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.model-answer-text {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text);
  margin: 0 0 8px;
}
.canvas-wrapper {
  width: 100%;
  height: 80px;
  background: #070B14;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin: 12px 0;
}
#articulation-waveform-canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.recorder-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.button-record {
  background: #DC2626;
  color: #FFFFFF;
  font-weight: 700;
  border: none;
}
.button-record:hover {
  background: #B91C1C;
}
.button-danger {
  background: #EA580C;
  color: #FFFFFF;
  font-weight: 700;
  border: none;
}
.record-status {
  font-size: 0.82rem;
  color: var(--muted);
}
.record-status.recording-active {
  color: #EF4444;
  font-weight: 600;
}
.record-status.recording-done {
  color: #10B981;
  font-weight: 600;
}
.diagnostic-scorecard {
  margin-top: 16px;
  padding: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.scorecard-heading {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand);
  text-transform: uppercase;
  margin: 0 0 10px;
}
.diagnostic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}
.diagnostic-pill {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 6px;
  text-align: center;
}
.diagnostic-label {
  font-size: 0.68rem;
  color: var(--muted);
  text-transform: uppercase;
  display: block;
  margin-bottom: 2px;
}
.diagnostic-pill strong {
  font-size: 0.95rem;
  color: var(--text);
}
.diagnostic-cta {
  text-align: center;
}

/* Spiderweb Navigation Mesh & Peer Drill Cluster */
.spiderweb-section { margin: 40px 0; }
.spiderweb-container { display: flex; flex-direction: column; gap: 20px; margin-top: 16px; }
.spiderweb-group { display: flex; flex-direction: column; gap: 10px; }
.spiderweb-label { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.spiderweb-links { display: flex; flex-wrap: wrap; gap: 10px; }
.spiderweb-link { display: inline-block; padding: 6px 14px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface-1); color: var(--text); font-size: .88rem; text-decoration: none; transition: border-color .15s, background .15s; }
.spiderweb-link:hover { border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.spiderweb-link.hub-pill { font-weight: 600; border-color: var(--brand); background: var(--brand-soft); color: var(--brand); }
.peer-drill-group { padding: 14px 16px; background: rgba(56, 189, 248, 0.03); border: 1px dashed var(--border); border-radius: 8px; }
.peer-drill-link { font-weight: 600; }
.peer-drill-link.tier1-link { border-color: rgba(56, 189, 248, 0.4); color: var(--brand); }
.spiderweb-pagination { display: flex; justify-content: space-between; align-items: center; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }
.page-link { font-size: .9rem; font-weight: 600; color: var(--brand); text-decoration: none; }
.page-link:hover { text-decoration: underline; }

@media (max-width: 780px) {
  .articulation-container { grid-template-columns: 1fr; }
}

footer { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; padding: 40px 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: .78rem; }

.methodology-page { padding-bottom: 40px; }
.methodology-page .hero { margin-inline: 0; text-align: left; }
.methodology-steps { display: grid; gap: 14px; margin: 24px 0 0; padding: 0; list-style: none; }
.methodology-steps li { display: grid; grid-template-columns: minmax(150px, .65fr) 2fr; gap: 20px; padding: 18px 0; border-top: 1px solid var(--border); }
.methodology-steps span { color: var(--muted); }

@media (max-width: 780px) {
  .container, main { width: min(calc(100% - 28px), var(--content)); }
  .hero-grid { grid-template-columns: 1fr; padding-top: 38px; }
  .readiness-card { position: static; max-width: 560px; }
  .outcome-grid { grid-template-columns: 1fr; }
  .reference-list { grid-template-columns: 1fr; }
  .matrix { overflow-x: auto; }
  .preparation-table { min-width: 640px; }
  .matrix-row { min-width: 720px; }
  .rubric-grid, .defense-steps { grid-template-columns: repeat(2, 1fr); }
  .cta-card { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 520px) {
  .site-header { padding-inline: 14px; }
  .site-header nav a:first-child { display: none; }
  .hero-grid { padding-top: 28px; gap: 28px; }
  h1 { font-size: clamp(2rem, 11vw, 3rem); }
  .section { padding: 42px 0; }
  .grid, .related-grid, .rubric-grid, .defense-steps { grid-template-columns: 1fr; }
  .question-card { grid-template-columns: 34px 1fr; gap: 11px; padding: 17px; }
  .question-number { width: 32px; height: 32px; }
  .score-row { grid-template-columns: 105px 1fr 28px; }
  .methodology-steps li { grid-template-columns: 1fr; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cta, .button { transition: none; }
}