/* ── BASE ─────────────────────────────────────────── */
:root {
  --bg:        #FAF7F2;
  --bg-alt:    #F3EDE3;
  --fg:        #1A1814;
  --fg-muted:  #7A746A;
  --accent:    #C4895A;
  --accent-bg: #EDE0D4;
  --border:    #E2D9CD;
  --card-bg:   #FFFFFF;
  --match-tint:#F5E8DC;
  --tag-buy:   #1A1814;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --space-xs:  clamp(8px, 1.5vw, 12px);
  --space-sm:  clamp(12px, 2vw, 20px);
  --space-md:  clamp(20px, 4vw, 40px);
  --space-lg:  clamp(40px, 7vw, 80px);
  --space-xl:  clamp(60px, 10vw, 120px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── TYPOGRAPHY ───────────────────────────────────── */
.section-label {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: var(--space-md);
}

/* ── HERO ─────────────────────────────────────────── */
.hero {
  padding: var(--space-xl) var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.hero-text { padding-right: var(--space-md); }

.hero-eyebrow {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--fg);
  margin-bottom: var(--space-sm);
}

.hero-sub {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 480px;
}

/* ── MATCH CARD (hero visual) ──────────────────────── */
.hero-visual { justify-self: center; }

.match-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: var(--space-sm);
  width: 100%;
  max-width: 340px;
  box-shadow: 0 4px 32px rgba(26,24,20,0.08);
}

.match-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xs);
}

.match-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.match-brand {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
}

.match-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 0;
}

.match-arrow {
  font-size: 18px;
  color: var(--accent);
}

.match-results { display: flex; flex-direction: column; gap: 6px; }

.match-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--match-tint);
  border-radius: 8px;
}

.match-brand-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
}

.match-shade {
  font-size: 12px;
  color: var(--fg-muted);
  font-family: var(--font-body);
}

.match-confidence {
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-bg);
  padding: 2px 8px;
  border-radius: 20px;
}

.match-badge {
  margin-top: var(--space-xs);
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  padding: 6px;
  border-top: 1px solid var(--border);
}

/* ── DEMO SECTION ──────────────────────────────────── */
.demo-section {
  padding: var(--space-lg) var(--space-md);
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.demo-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.demo-interface {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  max-width: 700px;
  box-shadow: 0 4px 24px rgba(26,24,20,0.06);
}

.di-search {
  padding: var(--space-sm);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.di-input-group {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
}

.di-placeholder {
  font-size: 14px;
  color: var(--fg-muted);
  font-style: italic;
}

.di-or {
  font-size: 12px;
  color: var(--fg-muted);
  font-weight: 500;
  letter-spacing: 0.06em;
}

.di-upload {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  font-size: 13px;
  color: var(--fg-muted);
  cursor: pointer;
}

.di-upload-icon { font-size: 14px; }

.di-results { padding: var(--space-xs); }

.di-result-bar {
  display: grid;
  grid-template-columns: 90px 24px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
}

.di-result-bar:first-child { background: var(--bg-alt); }

.di-result-matches {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.di-result-matches:last-child { border-bottom: none; }

.di-brand { font-weight: 500; font-size: 13px; color: var(--fg); }

.di-swatch {
  width: 24px; height: 24px;
  border-radius: 50%;
  display: inline-block;
  border: 1px solid rgba(26,24,20,0.12);
}

.di-shade { color: var(--fg-muted); font-size: 12px; }

.di-conf {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  text-align: right;
}

.di-tag {
  font-size: 11px;
  color: var(--fg-muted);
  background: var(--bg-alt);
  padding: 3px 8px;
  border-radius: 20px;
}

.di-tag-buy {
  background: var(--fg);
  color: #FAF7F2;
  font-weight: 500;
}

.di-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.di-ai-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.di-count {
  font-size: 11px;
  color: var(--fg-muted);
}

/* ── FEATURES ─────────────────────────────────────── */
.features-section {
  padding: var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--border);
}

.features-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.feature-card {
  padding: var(--space-sm);
}

.feature-icon {
  font-size: 28px;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ── WHY ──────────────────────────────────────────── */
.why-section {
  padding: var(--space-lg) var(--space-md);
  background: var(--fg);
  color: #FAF7F2;
}

.why-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.why-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(250,247,242,0.15);
}

.why-stat { text-align: center; }

.why-number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.why-label {
  font-size: 13px;
  color: rgba(250,247,242,0.6);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.why-text h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: #FAF7F2;
}

.why-text p {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(250,247,242,0.7);
  max-width: 640px;
  margin-bottom: var(--space-sm);
}

/* ── CLOSING ──────────────────────────────────────── */
.closing-section {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
}

.closing-section h2 {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 700;
  font-style: italic;
  color: var(--fg);
  margin-bottom: var(--space-sm);
  line-height: 1.1;
}

.closing-section p {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 540px;
  margin: 0 auto;
}

/* ── FOOTER ───────────────────────────────────────── */
.site-footer {
  padding: var(--space-md) var(--space-md);
  background: var(--fg);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: #FAF7F2;
}

.footer-tagline {
  font-size: 12px;
  color: rgba(250,247,242,0.4);
  letter-spacing: 0.08em;
}

/* ── RESPONSIVE ───────────────────────────────────── */
@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .hero-text { padding-right: 0; }
  .hero-visual { justify-self: start; }
  .match-card { max-width: 100%; }

  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .why-stat-row {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    text-align: left;
  }
  .why-stat { text-align: left; }
  .why-number { font-size: 56px; }

  .di-result-bar {
    grid-template-columns: 80px 20px 1fr;
    gap: 8px;
  }
  .di-conf, .di-tag-buy { display: none; }
}

@media (max-width: 480px) {
  .di-search { flex-direction: column; align-items: stretch; }
  .di-or { text-align: center; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}