/*
 * GEO Auditor — Design System
 *
 * An editorial audit aesthetic: warm paper surfaces, hairline rules,
 * a single restrained teal accent, and a serif/mono type pairing that
 * reads like an inspection report rather than a SaaS dashboard.
 * No dark gradients, no glow, no neon accent fills.
 */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,340..760;1,9..144,340..760&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ============================================================
   Design Tokens
   ============================================================ */
:root {
  /* Paper surfaces — layered warmth, never pure white/black */
  --bg: #f5efe2;
  --surface: #efe6d2;
  --surface-raised: #e7dcc0;
  --surface-2: #e0d3b3;
  --surface-header: #f5efe2;
  --surface-sticky: #f5efe2;

  /* Hairline borders — warm neutral taupe, no gold cast */
  --border: #ddcda3;
  --border-soft: #e7dcbe;
  --border-strong: #a89e76;

  /* Ink */
  --text: #211c12;
  --text-secondary: #5c5236;
  --text-muted: #8c8163;

  /* Brand accent — a single restrained, deep teal */
  --accent: #2c6b62;
  --accent-hover: #204e47;
  --accent-tint: #e2ebe6;
  --accent-line: #b9d0c8;

  /* Status colors — muted, editorial, subordinate to teal */
  --success: #4a7a4e;
  --success-tint: #e7eee2;
  --warning: #b06a1f;
  --warning-tint: #f3e6d2;
  --danger: #a14a35;
  --danger-tint: #f1e0d6;
  --white: #fbf7ec;
  --warm-soft: #d4b86a;

  /* Grade colors — semantic, muted */
  --grade-a: #4a7a4e;
  --grade-b: #2c6b62;
  --grade-c: #b06a1f;
  --grade-d: #b85a15;
  --grade-f: #a14a35;

  /* Fonts */
  --font-display: "Fraunces", Georgia, "Iowan Old Style", serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo,
    Monaco, monospace;

  /* Layout */
  --max-width: 1180px;
  --radius-sm: 3px;
  --radius-md: 5px;
  --radius-lg: 8px;
  --radius-xl: 10px;

  /* Shadow — soft, warm-tinted, never black or glowing */
  --shadow-sm: 0 1px 2px rgba(33, 28, 18, 0.07);
  --shadow-md: 0 6px 20px rgba(33, 28, 18, 0.08);
  --shadow-lg: 0 16px 40px rgba(33, 28, 18, 0.11);

  /* Animation */
  --anim-fast: 140ms cubic-bezier(.4, 0, .2, 1);
  --anim-base: 260ms cubic-bezier(.4, 0, .2, 1);
  --anim-slow: 640ms cubic-bezier(.16, 1, .3, 1);
}

/* ============================================================
   Base & Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color-scheme: light;
  font-size: 16px;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  background: var(--bg);
  -webkit-tap-highlight-color: transparent;
  font-feature-settings: "liga" 1, "calt" 1;
  position: relative;
}

/* Faint paper grain — texture, not decoration */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0.13  0 0 0 0 0.11  0 0 0 0 0.07  0 0 0 0.035 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img, svg { display: block; max-width: 100%; }

/* Ambient background — soft colored light fields entering from the
   edges. Two large off-canvas shapes at z-index 0 (base layer), plus
   section-specific pseudo-elements creating an alternating left/right
   rhythm as the user scrolls. Depth without decoration. */
.bg-ambients {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-shape {
  position: absolute;
  border-radius: 60% 40% 50% 50%;
  filter: blur(40px);
}
.bg-shape--teal {
  width: 680px; height: 680px;
  background: var(--accent);
  opacity: 0.16;
  top: 18%; left: -5%;
  transform: translate(0, -25%);
}
.bg-shape--warm {
  width: 560px; height: 560px;
  background: var(--warm-soft);
  opacity: 0.14;
  bottom: 12%; right: -6%;
  transform: translate(20%, 25%);
}

/* Section elements serve as positioning context for ambient shapes */
.section,
.hero {
  position: relative;
}

/* Alternating composition per section:
   hero → right emphasis  |  how-it-works → left  |  what-we-check → right  |  samples → left */
@media (prefers-reduced-motion: no-preference) {

  /* Hero — two subtle fields toward the right */
  .hero::before,
  .hero::after {
    content: "";
    position: absolute;
    z-index: 0;
    border-radius: 60% 40% 50% 50%;
    filter: blur(45px);
    pointer-events: none;
  }
  .hero::before {
    width: 280px; height: 280px;
    background: var(--warm-soft);
    opacity: 0.1;
    top: 8%; right: -3%;
    transform: translate(35%, -20%);
  }
  .hero::after {
    width: 220px; height: 220px;
    background: var(--accent-tint);
    opacity: 0.08;
    bottom: 6%; right: -2%;
    transform: translate(25%, 20%);
  }

  /* how-it-works — two subtle fields toward the left */
  #how-it-works::before,
  #how-it-works::after {
    content: "";
    position: absolute;
    z-index: 0;
    border-radius: 60% 40% 50% 50%;
    filter: blur(45px);
    pointer-events: none;
  }
  #how-it-works::before {
    width: 300px; height: 300px;
    background: var(--accent-tint);
    opacity: 0.1;
    top: 12%; left: -6%;
    transform: translate(-35%, -25%);
  }
  #how-it-works::after {
    width: 240px; height: 240px;
    background: var(--warm-soft);
    opacity: 0.09;
    bottom: 8%; left: -4%;
    transform: translate(-25%, 25%);
  }

  /* what-we-check — single field toward the right */
  #what-we-check::before {
    content: "";
    position: absolute;
    z-index: 0;
    border-radius: 60% 40% 50% 50%;
    filter: blur(45px);
    pointer-events: none;
    width: 340px; height: 340px;
    background: var(--warm-soft);
    opacity: 0.1;
    top: -5%; right: -5%;
    transform: translate(30%, -15%);
  }

  /* samples — single larger field toward the left */
  #samples::before {
    content: "";
    position: absolute;
    z-index: 0;
    border-radius: 60% 40% 50% 50%;
    filter: blur(45px);
    pointer-events: none;
    width: 380px; height: 380px;
    background: var(--accent-tint);
    opacity: 0.1;
    bottom: -15%; left: -5%;
    transform: translate(-30%, 25%);
  }
}

/* Respect reduced motion: disable all ambient visuals */
@media (prefers-reduced-motion: reduce) {
  .bg-ambients,
  .hero::before, .hero::after,
  #how-it-works::before, #how-it-works::after,
  #what-we-check::before,
  #samples::before {
    display: none !important;
  }
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.75rem;
  position: relative;
  z-index: 1;
}

a { text-decoration: none; }

::selection { background: var(--accent); color: var(--white); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ============================================================
   Typography
   ============================================================ */
h1 {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(2.5rem, 4.6vw, 3.9rem);
  font-weight: 480;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--text);
  margin: 0 0 1.25rem 0;
}

h2 {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(1.7rem, 3vw, 2.15rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 480;
  color: var(--text);
  margin: 0 0 1rem 0;
}

h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.35;
  font-weight: 560;
  color: var(--text);
  margin: 0 0 0.5rem 0;
}

h4 {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.3;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.4rem 0;
}

p { margin: 0 0 1rem 0; }

.muted { color: var(--text-muted); }
.strong { color: var(--text); font-weight: 600; }

/* eyebrow — small tracked mono label, used like a case-file stamp */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.62rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--anim-fast), background var(--anim-fast), border-color var(--anim-fast), color var(--anim-fast), box-shadow var(--anim-fast);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--white); }

.btn-ghost-sm {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
  font-size: 0.82rem;
  padding: 0.5rem 0.95rem;
}
.btn-ghost-sm:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-tint);
}

/* ============================================================
   Header / Nav
   ============================================================ */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface-header);
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.1rem 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--text);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  flex: none;
}

.menu-toggle { display: none; }
.menu-icon {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  margin-left: auto;
}
.menu-icon span {
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: transform var(--anim-fast), opacity var(--anim-fast);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.9rem;
  margin-left: auto;
}
.nav a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--anim-fast);
}
.nav a:hover { color: var(--accent); }

.report-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: auto;
  flex-wrap: wrap;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
  padding-top: 4rem;
  padding-bottom: 4.5rem;
  position: relative;
}

.hero-title { max-width: 620px; }

.hero-copy {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 1.9rem;
}

.trust-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  flex-wrap: wrap;
}
.quick-links { color: var(--accent); font-weight: 500; }
.quick-links:hover { text-decoration: underline; }

/* ============================================================
   Audit Form
   ============================================================ */
#audit-form { max-width: 520px; }

.form-row {
  display: flex;
  gap: 0.6rem;
  align-items: flex-end;
  flex-wrap: wrap;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text);
  transition: border-color var(--anim-fast), background var(--anim-fast);
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:focus {
  outline: none;
  border-style: solid;
  border-color: var(--accent);
  background: var(--white);
}

.form-submit {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.86rem 1.4rem;
  background: var(--accent);
  color: var(--white);
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--anim-fast), transform var(--anim-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.form-submit:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.form-submit:active { transform: translateY(1px); }
.form-submit:disabled { opacity: 0.7; cursor: progress; }

.toggle-row {
  margin-top: 0.9rem;
  display: flex;
  align-items: center;
}

.toggle-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  user-select: none;
}

.toggle-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 26px;
  background-color: var(--border);
  border-radius: 999px;
  transition: background-color 0.25s ease;
}

.toggle-slider::before {
  content: "";
  position: absolute;
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: var(--white);
  border-radius: 50%;
  transition: transform 0.25s ease;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--accent-tint);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(18px);
}

.toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.toggle-badge {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background-color: var(--border-soft);
  color: var(--text-muted);
  transition: background-color 0.25s ease, color 0.25s ease;
}

.toggle-switch input:checked + .toggle-slider + .toggle-label .toggle-badge {
  background-color: var(--accent-tint);
  color: var(--accent-hover);
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.9rem;
  cursor: pointer;
}
.checkbox input { accent-color: var(--accent); width: 15px; height: 15px; }

.error-banner {
  margin-top: 0.9rem;
  padding: 0.75rem 1rem;
  background: var(--danger-tint);
  border: 1px solid var(--danger);
  border-radius: var(--radius-md);
  color: var(--danger);
  font-size: 0.86rem;
}

/* ============================================================
   Report Preview Card (hero, right column)
   ============================================================ */
.report-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-md);
  position: relative;
  transform: rotate(0.6deg);
}
.card-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.card-url {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-secondary);
  padding-bottom: 1.1rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px dashed var(--border-strong);
}
.score-large {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 500;
  line-height: 1;
  color: var(--text);
  margin-bottom: 0.6rem;
}
.score-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 0.42rem 0;
  border-bottom: 1px dotted var(--border);
}
.score-row:last-of-type { border-bottom: none; }
.card-footer {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ============================================================
   Stamp — grade badge signature component
   ============================================================ */
.stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid currentColor;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 620;
  font-size: 1.5rem;
  transform: rotate(-4deg);
  position: relative;
  flex: none;
  background: transparent;
}
.stamp::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  border: 1px solid currentColor;
  opacity: 0.55;
}
.stamp-sm { width: 40px; height: 40px; font-size: 1.05rem; }
.stamp-lg { width: 78px; height: 78px; font-size: 2.1rem; }

.grade-badge {
  color: var(--grade-f);
}
.grade-badge.grade-a, .grade-a.stamp, span.grade-a { color: var(--grade-a); }
.grade-badge.grade-b, .grade-b.stamp, span.grade-b { color: var(--grade-b); }
.grade-badge.grade-c, .grade-c.stamp, span.grade-c { color: var(--grade-c); }
.grade-badge.grade-d, .grade-d.stamp, span.grade-d { color: var(--grade-d); }
.grade-badge.grade-f, .grade-f.stamp, span.grade-f { color: var(--grade-f); }

.grade-label {
  font-size: 0.86rem;
  color: var(--text-secondary);
}

/* ============================================================
   Sections
   ============================================================ */
.section { padding: 4.5rem 0; border-top: 1px solid var(--border-soft); }
.section-sm { padding: 4rem 0; }

.section-header { max-width: 640px; margin-bottom: 2.5rem; }
.section-title { margin: 0; }
.section-desc { font-size: 1.02rem; color: var(--text-secondary); max-width: 560px; }

/* ============================================================
   Steps
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
}
.step {
  padding: 2rem 1.75rem;
  border-left: 1px solid var(--border);
}
.step:first-child { border-left: none; }
.step-number {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.9rem;
  color: var(--accent);
  margin-bottom: 0.7rem;
  line-height: 1;
}
.step-title { font-weight: 600; color: var(--text); margin-bottom: 0.4rem; font-size: 1.02rem; }
.step-desc { font-size: 0.9rem; color: var(--text-secondary); margin: 0; }

/* ============================================================
   Checklist ("what we check")
   ============================================================ */
.checklist { display: flex; flex-direction: column; }
.checklist-item {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border-soft);
}
.checklist-item:last-child { border-bottom: none; }
.checklist-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  width: 22px;
  flex: none;
}
.checklist-title { font-weight: 600; color: var(--text); font-size: 0.98rem; }
.checklist-desc { font-size: 0.87rem; color: var(--text-secondary); }
.checklist-weight {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  flex: none;
}

/* ============================================================
   Report mockup (large preview section)
   ============================================================ */
.report-mockup {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.mockup-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-raised);
}
.mockup-header .domain {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--text);
  font-weight: 500;
}
.mockup-body { padding: 2rem 1.5rem 2.25rem; display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.mockup-score {
  font-family: var(--font-display);
  font-size: 3.4rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1;
  margin-bottom: 0.6rem;
}
.mockup-label { font-size: 0.88rem; color: var(--text-secondary); margin: 0.5rem 0 1.3rem; }
.mockup-breakdown { display: flex; flex-direction: column; }
.breakdown-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 0.4rem 0;
  border-bottom: 1px dotted var(--border);
}
.breakdown-row:last-child { border-bottom: none; }
.mockup-priorities { display: flex; flex-direction: column; gap: 0.7rem; padding-top: 0.2rem; }
.priority-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.88rem;
}
.priority-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--warning);
  border: 1px solid var(--warning);
  background: var(--warning-tint);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
}
.priority-title { color: var(--text); font-weight: 500; }
.priority-meta { margin-left: auto; font-family: var(--font-mono); font-size: 0.74rem; }

/* ============================================================
   SEO vs GEO — venn
   ============================================================ */
.venn-diagram {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.venn-col { flex: 1; }
.venn-items { display: flex; flex-direction: column; gap: 0.6rem; }
.venn-item {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
}
.venn-item.geo {
  border-color: var(--accent-line);
  background: var(--accent-tint);
  color: var(--accent-hover);
}
.venn-plus {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2rem;
  color: var(--text-muted);
  flex: none;
}

/* ============================================================
   Research insights
   ============================================================ */
.insights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.insight {
  padding: 0 2rem;
  border-left: 1px solid var(--border);
}
.insight:first-child { border-left: none; padding-left: 0; }
.insight-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 0.6rem;
}
.insight-desc { font-size: 0.88rem; color: var(--text-secondary); margin: 0; }

/* ============================================================
   Sample reports
   ============================================================ */
.samples { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.sample-card {
  display: block;
  padding: 1.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  transition: transform var(--anim-base), box-shadow var(--anim-base), border-color var(--anim-base);
}
.sample-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.sample-title { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 0.6rem; }
.sample-score { font-family: var(--font-display); font-size: 2.3rem; font-weight: 500; color: var(--text); margin-bottom: 0.7rem; }
.sample-label { font-size: 0.85rem; color: var(--text-secondary); margin: 0.6rem 0 1rem; }
.sample-link { font-size: 0.85rem; font-weight: 600; color: var(--accent); }

/* ============================================================
   About
   ============================================================ */
.about { text-align: left; max-width: 640px; }
.about-author { font-family: var(--font-display); font-style: italic; font-size: 1.1rem; color: var(--text); margin-bottom: 0.6rem; }
.about-text { font-size: 1rem; color: var(--text-secondary); }
.about-links { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-top: 1rem; font-size: 0.88rem; }
.about-links a { font-weight: 600; color: var(--accent); }
.about-links a:hover { text-decoration: underline; }
.about-links .separator { color: var(--text-muted); flex: none; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { border-top: 1px solid var(--border); padding: 2.5rem 0 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; padding-bottom: 2rem; }
.footer-left { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.footer-logo { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-display); font-weight: 600; color: var(--text); }
.footer-links { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; font-size: 0.85rem; }
.footer-links a { color: var(--text-secondary); }
.footer-links a:hover { color: var(--accent); }
.footer-links .separator { color: var(--text-muted); flex: none; }
.footer-bottom {
  border-top: 1px solid var(--border-soft);
  padding: 1.1rem 1.75rem;
  display: flex;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.support-link {
  color: var(--text-secondary);
  font-size: 0.85rem;
}
.support-link:hover {
  color: var(--accent);
}

/* ============================================================
   Report page — header & url strip
   ============================================================ */
.report-header {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 1.25rem 1.5rem;
}
.report-header-inner { display: flex; justify-content: space-between; align-items: flex-end; gap: 1.5rem; flex-wrap: wrap; }
.report-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.report-url { font-family: var(--font-mono); font-size: 1.02rem; color: var(--text); word-break: break-all; }
.stat-value-container { text-align: right; }

/* Score circle */
.score-circle { position: relative; width: 100px; height: 100px; flex: none; }
.score-circle svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.progress-ring__circle { stroke-linecap: round; }
.score-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.score-num { font-family: var(--font-display); font-size: 1.9rem; font-weight: 500; color: var(--text); line-height: 1; }
.score-max { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); }

/* Banners */
.banner {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  border-left: 3px solid var(--border-strong);
}
.banner-info { border-left-color: var(--accent); background: var(--accent-tint); }
.banner-warning { border-left-color: var(--warning); background: var(--warning-tint); }
.banner-icon { font-family: var(--font-mono); flex: none; color: var(--text); }
.banner-title { font-weight: 600; color: var(--text); margin-bottom: 0.2rem; font-size: 0.92rem; }
.banner-text { font-size: 0.88rem; color: var(--text-secondary); }

/* Stats row */
.stats-row { display: flex; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; background: var(--surface); }
.stat-item { flex: 1; text-align: center; padding: 1.1rem 0.5rem; border-left: 1px solid var(--border); }
.stat-item:first-child { border-left: none; }
.stat-value { font-family: var(--font-display); font-size: 1.7rem; font-weight: 500; color: var(--text); }
.stat-label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); margin-top: 0.2rem; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.22rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}
.badge-success { background: var(--success-tint); color: var(--success); border-color: var(--success); }
.badge-warning { background: var(--warning-tint); color: var(--warning); border-color: var(--warning); }
.badge-danger { background: var(--danger-tint); color: var(--danger); border-color: var(--danger); }
.badge-info { background: var(--accent-tint); color: var(--accent); border-color: var(--accent-line); }
.badge-ghost { background: var(--surface-raised); color: var(--text-muted); border-color: var(--border); }

/* Findings */
.finding {
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 1.1rem 1.25rem;
}
.finding.critical { border-left-color: var(--danger); }
.finding.warning { border-left-color: var(--warning); }
.finding.info { border-left-color: var(--accent); }
.finding.pass { border-left-color: var(--success); }
.finding-header { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.5rem; flex-wrap: wrap; }
.finding-title { font-size: 0.98rem; font-weight: 600; color: var(--text); margin: 0; }
.finding-meta { margin-left: auto; font-family: var(--font-mono); font-size: 0.74rem; color: var(--text-muted); }
.why-it-matters { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 0.6rem; }

.evidence {
  background: var(--surface-raised);
  border-left: 2px solid var(--accent);
  padding: 0.7rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 0.4rem;
}

.code-block-wrapper { position: relative; margin-top: 0.5rem; }
.code-block {
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}
.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.6rem;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--anim-fast), color var(--anim-fast);
}
.copy-btn:hover { background: var(--accent); color: var(--white); border-color: var(--accent); }
.copy-btn.copied { background: var(--success); color: var(--white); border-color: var(--success); }

/* Accordion */
.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  margin-bottom: 0.6rem;
  overflow: hidden;
}
.accordion-header {
  display: block;
  padding: 0.9rem 1.1rem 0;
  cursor: pointer;
  user-select: none;
  transition: background var(--anim-fast);
}
.accordion-header:hover { background: var(--surface-raised); }
.accordion-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.9rem;
  gap: 1rem;
}
.accordion-header .progress-bar { margin: 0 -1.1rem; }
.accordion-chevron {
  display: inline-block;
  color: var(--text-muted);
  transition: transform var(--anim-base);
}
.accordion-chevron.rotate { transform: rotate(90deg); color: var(--accent); }

.progress-bar { height: 3px; background: var(--border-soft); overflow: hidden; }
.progress-fill { height: 100%; transition: width var(--anim-slow); }

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--anim-slow);
}
.accordion-content.open { max-height: 3000px; }
.accordion-content-inner { padding: 0 1.1rem 1.1rem; }

/* Matrix table */
.audit-table {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
}
.audit-table table { width: 100%; border-collapse: collapse; }
.audit-table thead { background: var(--surface-raised); }
.matrix-q { font-weight: 500; }

/* Roadmap */
.roadmap { display: flex; flex-direction: column; gap: 1rem; }
.roadmap-item { display: flex; gap: 1rem; }
.roadmap-dot {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  border: 1.5px solid currentColor;
}
.roadmap-dot.critical { color: var(--danger); background: var(--danger-tint); }
.roadmap-dot.warning { color: var(--warning); background: var(--warning-tint); }
.roadmap-content {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 1rem 1.25rem;
}
.roadmap-item-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 0.4rem; }
.roadmap-item-title { font-size: 0.98rem; margin: 0; }

details summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0.3rem 0;
}

/* Empty state */
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--text-muted); }
.empty-icon { font-size: 2rem; margin-bottom: 0.75rem; }

/* Loading state (injected by app.js) */
.loading-state { text-align: center; padding: 3rem 1rem; }
.loading-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.loading-url { font-family: var(--font-mono); font-size: 1.05rem; color: var(--text); margin-bottom: 1.5rem; word-break: break-all; }
.progress-steps { display: flex; flex-direction: column; gap: 0.6rem; max-width: 320px; margin: 0 auto; }
.progress-step {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: left;
}
.progress-step.completed { color: var(--success); }
.progress-step.current { color: var(--text); }
.step-marker { font-family: var(--font-mono); flex: none; }
.progress-step.current .step-marker { animation: pulse 1.1s ease-in-out infinite; }
.loading-hint { margin-top: 1.25rem; font-size: 0.8rem; color: var(--text-muted); }

.spinner {
  display: inline-block;
  width: 13px;
  height: 13px;
  border: 2px solid rgba(251, 247, 236, 0.4);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ============================================================
   Registration marks — small crosshair accents, print/inspection motif
   ============================================================ */
.reg-mark {
  position: absolute;
  font-family: var(--font-mono);
  color: var(--border-strong);
  font-size: 0.9rem;
  pointer-events: none;
  user-select: none;
}

/* ============================================================
   Animation layer
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes stampIn {
  0% { opacity: 0; transform: rotate(-16deg) scale(0.6); }
  60% { opacity: 1; transform: rotate(-2deg) scale(1.06); }
  100% { opacity: 1; transform: rotate(-4deg) scale(1); }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.anim-in { animation: fadeUp var(--anim-slow) both; }
.stamp.anim-in { animation: stampIn 640ms cubic-bezier(.2, .9, .3, 1.3) both; }

.hero-anim > * { opacity: 0; animation: fadeUp var(--anim-slow) forwards; }
.hero-anim > *:nth-child(1) { animation-delay: 0.02s; }
.hero-anim > *:nth-child(2) { animation-delay: 0.1s; }
.hero-anim > *:nth-child(3) { animation-delay: 0.18s; }
.hero-anim > *:nth-child(4) { animation-delay: 0.26s; }
.hero-anim > *:nth-child(5) { animation-delay: 0.34s; }
.hero-card-anim { opacity: 0; animation: fadeUp var(--anim-slow) forwards; animation-delay: 0.22s; }

/* Elements are visible by default. JS opts a .reveal element into the
   hidden-until-scrolled state via .reveal-pending, so content never
   disappears if JS fails to load, is disabled, or the page is printed. */
.reveal { transition: opacity 640ms cubic-bezier(.16,1,.3,1), transform 640ms cubic-bezier(.16,1,.3,1); }
.reveal.reveal-pending { opacity: 0; transform: translateY(18px); }
.reveal.in-view { opacity: 1; transform: translateY(0); }

.reveal-stagger.reveal-pending > * { opacity: 0; }
.reveal-stagger.in-view > * { animation: fadeUp 560ms cubic-bezier(.16,1,.3,1) both; }
.reveal-stagger.in-view > *:nth-child(1) { animation-delay: 0.02s; }
.reveal-stagger.in-view > *:nth-child(2) { animation-delay: 0.08s; }
.reveal-stagger.in-view > *:nth-child(3) { animation-delay: 0.14s; }
.reveal-stagger.in-view > *:nth-child(4) { animation-delay: 0.2s; }
.reveal-stagger.in-view > *:nth-child(5) { animation-delay: 0.26s; }
.reveal-stagger.in-view > *:nth-child(6) { animation-delay: 0.32s; }

/* ============================================================
   Utility
   ============================================================ */
.no-print { /* hidden in print — see @media print rule below */ }

@media print {
  .no-print { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
  body::before { display: none !important; }
  .site-header { position: static; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 2.25rem; }
  .steps { grid-template-columns: 1fr; }
  .step { border-left: none; border-top: 1px solid var(--border); }
  .step:first-child { border-top: none; }
  .insights { grid-template-columns: 1fr; gap: 2rem; }
  .insight { border-left: none; padding-left: 0; border-top: 1px solid var(--border); padding-top: 1.5rem; }
  .insight:first-child { border-top: none; padding-top: 0; }
  .samples { grid-template-columns: 1fr; }
  .mockup-body { grid-template-columns: 1fr; gap: 1.5rem; }
  .venn-diagram { flex-direction: column; }
  .venn-plus { transform: rotate(90deg); }
  .grid-2 { grid-template-columns: 1fr; }
  .stats-row { flex-wrap: wrap; }
  .stat-item { flex: 1 1 50%; border-top: 1px solid var(--border); }
  .report-header-inner { flex-direction: column; align-items: flex-start; }
  .stat-value-container { text-align: left; }

  .nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--anim-base);
  }
  .nav a, .nav .btn { width: 100%; padding: 0.9rem 1.75rem; border-top: 1px solid var(--border-soft); }
  .menu-icon { display: flex; }
  .menu-toggle:checked ~ .nav { max-height: 320px; }
  .menu-toggle:checked ~ .menu-icon span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle:checked ~ .menu-icon span:nth-child(2) { opacity: 0; }
  .menu-toggle:checked ~ .menu-icon span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}

@media (max-width: 560px) {
  .form-row { flex-direction: column; align-items: stretch; }
  .form-submit { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .hero-anim > *, .hero-card-anim, .reveal { opacity: 1 !important; transform: none !important; }
}