/* ==========================================================================
   PROOF — decomposition-first fact-checking. Editorial, clinical, precise.
   Palette: paper neutrals + deep indigo accent. No political color coding.
   ========================================================================== */

:root {
  /* ---- Type scale ---- */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.75rem);

  /* ---- Spacing (4px system) ---- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* ---- Surfaces: paper / cool neutral ---- */
  --color-bg: #f7f5f1;
  --color-surface: #fffefb;
  --color-surface-2: #fbf9f5;
  --color-surface-offset: #efece5;
  --color-surface-sunk: #eae7df;
  --color-divider: #ddd8cd;
  --color-border: #d2ccc0;

  /* ---- Text: near-black ink on paper ---- */
  --color-text: #1c1a17;
  --color-text-muted: #6b665c;
  --color-text-faint: #a29c8e;
  --color-text-inverse: #f7f5f1;

  /* ---- Primary accent: deep indigo (precise, non-partisan) ---- */
  --color-primary: #2d2a6e;
  --color-primary-hover: #232160;
  --color-primary-active: #1a1849;
  --color-primary-highlight: #e2e0f2;
  --color-primary-soft: #eeecf8;

  /* ---- Verdict semantics (grayscale-leaning, never red/blue political) ---- */
  --color-verdict-accurate: #1e6b52;
  --color-verdict-accurate-bg: #e2eee8;
  --color-verdict-compressed: #8a6c17;
  --color-verdict-compressed-bg: #f3ecd8;
  --color-verdict-misleading: #a14a1f;
  --color-verdict-misleading-bg: #f5e6da;
  --color-verdict-unsupported: #6b665c;
  --color-verdict-unsupported-bg: #eae7df;

  /* ---- Status chips (component-level, distinct from verdict) ---- */
  --color-confirmed: #2d2a6e;
  --color-confirmed-bg: #eeecf8;
  --color-compressed-part: #8a6c17;
  --color-compressed-part-bg: #f3ecd8;
  --color-missing: #96453e;
  --color-missing-bg: #f4e3e0;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px rgba(28, 26, 23, 0.06);
  --shadow-md: 0 6px 20px rgba(28, 26, 23, 0.08);
  --shadow-lg: 0 20px 48px rgba(28, 26, 23, 0.12);

  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1240px;

  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */

.wrap {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.wrap--narrow {
  max-width: var(--content-narrow);
}
.wrap--default {
  max-width: var(--content-default);
}

section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

.section-head {
  max-width: 46rem;
  margin-bottom: var(--space-12);
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}
.section-head p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 42rem;
}
.section-head.center {
  margin-inline: auto;
  text-align: center;
}
.section-head.center p {
  margin-inline: auto;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 245, 241, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  gap: var(--space-6);
}
.logo-lockup {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}
.logo-lockup svg {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}
.logo-wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: 0.01em;
}

.main-nav ul {
  display: flex;
  gap: var(--space-8);
}
.main-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  white-space: nowrap;
}
.main-nav a:hover {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.nav-mobile-toggle {
  display: none;
  padding: var(--space-2);
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    flex-direction: column;
    padding: var(--space-6);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition:
      transform var(--transition-interactive),
      opacity var(--transition-interactive);
  }
  .main-nav[data-open='true'] {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .main-nav ul {
    flex-direction: column;
    gap: var(--space-5);
  }
  .header-actions .btn--sm.btn--primary {
    display: none;
  }
  .nav-mobile-toggle {
    display: inline-flex;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  white-space: nowrap;
  line-height: 1;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}
.btn--primary:active {
  background: var(--color-primary-active);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn--sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-xs);
}
.btn--block {
  width: 100%;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding-top: clamp(var(--space-16), 10vw, var(--space-24));
  padding-bottom: clamp(var(--space-16), 8vw, var(--space-20));
  overflow: hidden;
}
.hero-copy {
  max-width: 44rem;
  margin-inline: auto;
  text-align: center;
  margin-bottom: clamp(var(--space-12), 6vw, var(--space-20));
}
.hero-copy h1 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-6);
}
.hero-copy h1 em {
  font-style: italic;
  color: var(--color-primary);
}
.hero-lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-inline: auto;
  margin-bottom: var(--space-8);
  max-width: 38rem;
}
.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.hero-note {
  margin-top: var(--space-5);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ---- Decomposition centerpiece visual ---- */

.decomp {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-width: 920px;
  margin-inline: auto;
}
.decomp-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface-2);
}
.decomp-bar .dots span {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  margin-right: 4px;
}
.decomp-bar-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
}

.decomp-body {
  padding: clamp(var(--space-6), 4vw, var(--space-10));
}

.decomp-claim-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}

.decomp-claim {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px dashed var(--color-divider);
}
.decomp-claim mark {
  background: none;
  color: var(--color-primary);
  font-weight: 600;
  border-bottom: 2px solid var(--color-primary-highlight);
}

.decomp-arrow-row {
  display: flex;
  justify-content: center;
  color: var(--color-text-faint);
  margin-bottom: var(--space-6);
}
.decomp-arrow-row svg {
  width: 22px;
  height: 22px;
}

.decomp-parts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.part-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  background: var(--color-surface-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}
.part-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  width: fit-content;
  white-space: nowrap;
}
.part-status--confirmed {
  color: var(--color-confirmed);
  background: var(--color-confirmed-bg);
}
.part-status--compressed {
  color: var(--color-compressed-part);
  background: var(--color-compressed-part-bg);
}
.part-status--missing {
  color: var(--color-missing);
  background: var(--color-missing-bg);
}
.part-figure {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  word-break: break-word;
  overflow-wrap: anywhere;
}
.part-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.part-source {
  font-size: 0.6875rem;
  color: var(--color-text-faint);
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-divider);
  overflow-wrap: anywhere;
}

.decomp-verdict-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.decomp-verdict-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.verdict-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 700;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.verdict-badge--misleading {
  color: var(--color-verdict-misleading);
  background: var(--color-verdict-misleading-bg);
}
.verdict-badge--accurate {
  color: var(--color-verdict-accurate);
  background: var(--color-verdict-accurate-bg);
}
.verdict-badge--compressed {
  color: var(--color-verdict-compressed);
  background: var(--color-verdict-compressed-bg);
}
.verdict-badge--unsupported {
  color: var(--color-verdict-unsupported);
  background: var(--color-verdict-unsupported-bg);
}
.verdict-badge svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

@media (max-width: 760px) {
  .decomp-parts {
    grid-template-columns: 1fr;
  }
  .hero-copy h1 {
    font-size: clamp(2rem, 8vw, 2.75rem);
  }
}

/* ==========================================================================
   How it works
   ========================================================================== */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.step-card {
  position: relative;
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.step-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary-highlight);
  -webkit-text-stroke: 1.5px var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-4);
  line-height: 1;
}
.step-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.step-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.step-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.step-icon svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 860px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Demo section
   ========================================================================== */

.demo-shell {
  max-width: 760px;
  margin-inline: auto;
}
.demo-input-row {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}
.demo-input {
  flex: 1;
  min-width: 0;
  padding: var(--space-4) var(--space-5);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.demo-input:focus-visible {
  border-color: var(--color-primary);
}
.demo-input::placeholder {
  color: var(--color-text-faint);
}

.demo-examples {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}
.demo-example-chip {
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
}
.demo-example-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.interaction-prompts {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-8);
}
.prompt-chip {
  text-align: center;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-2);
  line-height: 1.4;
}

@media (max-width: 860px) {
  .interaction-prompts {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==========================================================================
   Verdict scale
   ========================================================================== */

.verdict-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.verdict-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.verdict-card .verdict-badge {
  margin-bottom: var(--space-4);
}
.verdict-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.verdict-vs {
  margin-top: var(--space-12);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  background: var(--color-surface-offset);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-6);
  align-items: center;
}
.verdict-vs-col {
  text-align: center;
}
.verdict-vs-col span.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}
.blunt-stamp {
  display: inline-flex;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text-faint);
}
.blunt-stamp span {
  text-decoration: line-through;
  opacity: 0.6;
}
.verdict-vs-divider {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  font-weight: 600;
}
.verdict-vs-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}

@media (max-width: 860px) {
  .verdict-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .verdict-vs {
    grid-template-columns: 1fr;
  }
  .verdict-vs-divider {
    text-align: center;
  }
}
@media (max-width: 520px) {
  .verdict-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Trust principles
   ========================================================================== */

.trust-section {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  margin-inline: var(--space-6);
  padding: clamp(var(--space-12), 6vw, var(--space-20));
}
.trust-section .section-head h2,
.trust-section .section-head p {
  color: var(--color-text-inverse);
}
.trust-section .section-head p {
  color: rgba(247, 245, 241, 0.72);
}
.trust-section .eyebrow {
  color: #b9b4ea;
}
.trust-section .eyebrow .dot {
  background: #b9b4ea;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
.trust-item {
  display: flex;
  gap: var(--space-4);
}
.trust-item-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.trust-item-icon svg {
  width: 20px;
  height: 20px;
  color: #d8d5f7;
}
.trust-item h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.trust-item p {
  font-size: var(--text-sm);
  color: rgba(247, 245, 241, 0.72);
}

@media (max-width: 860px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
  .trust-section {
    margin-inline: var(--space-4);
    padding: var(--space-10) var(--space-6);
  }
}

/* ==========================================================================
   Audience section
   ========================================================================== */

.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
.audience-card {
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.audience-card .step-icon {
  margin-bottom: var(--space-6);
}
.audience-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.audience-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}
.audience-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.audience-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.audience-list svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

@media (max-width: 860px) {
  .audience-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Waitlist
   ========================================================================== */

.waitlist-card {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  padding: clamp(var(--space-10), 6vw, var(--space-16));
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}
.waitlist-card h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.waitlist-card > p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  margin-inline: auto;
  max-width: 34rem;
}

.waitlist-form {
  display: flex;
  gap: var(--space-3);
  max-width: 26rem;
  margin-inline: auto;
  flex-wrap: wrap;
}
.waitlist-form input[type='email'] {
  flex: 1;
  min-width: 0;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface-2);
  font-size: var(--text-sm);
}
.waitlist-form input[type='email']:focus-visible {
  border-color: var(--color-primary);
}
.waitlist-role {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-top: var(--space-5);
  flex-wrap: wrap;
}
.waitlist-role label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.waitlist-note {
  margin-top: var(--space-5);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.waitlist-success {
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  background: var(--color-verdict-accurate-bg);
  color: var(--color-verdict-accurate);
  font-weight: 600;
  font-size: var(--text-sm);
}
.waitlist-success svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
.waitlist-card[data-submitted='true'] .waitlist-form,
.waitlist-card[data-submitted='true'] .waitlist-role,
.waitlist-card[data-submitted='true'] .waitlist-note {
  display: none;
}
.waitlist-card[data-submitted='true'] .waitlist-success {
  display: flex;
}

@media (max-width: 520px) {
  .waitlist-form {
    flex-direction: column;
  }
  .waitlist-form .btn {
    width: 100%;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-16) var(--space-10);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}
.footer-brand {
  max-width: 22rem;
}
.footer-brand .logo-lockup {
  margin-bottom: var(--space-4);
}
.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.footer-cols {
  display: flex;
  gap: var(--space-12);
  flex-wrap: wrap;
}
.footer-col h4 {
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
  font-weight: 600;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}
.footer-col a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.family-line {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 34rem;
}

@media (max-width: 640px) {
  .footer-top {
    flex-direction: column;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ==========================================================================
   Reveal-on-scroll (progressive enhancement)
   ========================================================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}