/* ── Reset ──────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* ── Tokens ─────────────────────────────────────────────────────────────────── */
:root {
  --bg:        #0c0c0c;
  --bg2:       #111111;
  --bg3:       #161616;
  --border:    #1e1e1e;
  --border2:   #2a2a2a;
  --text:      #f0ede8;
  --text2:     #999;
  --text3:     #555;
  --gold:      #c8a96e;
  --gold-light:#d4b87e;
  --gold-dim:  #c8a96e22;
  --radius:    12px;
  --radius-lg: 20px;
  --font-display: 'Syne', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'DM Mono', monospace;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ── Nav ────────────────────────────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.logo-dot { color: var(--gold); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link { font-size: 0.875rem; color: var(--text2); transition: color 0.15s; }
.nav-link:hover { color: var(--text); }
.nav-cta {
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 18px;
  background: var(--gold);
  color: #0c0c0c;
  border-radius: 8px;
  transition: background 0.15s;
}
.nav-cta:hover { background: var(--gold-light); }

/* ── Hero ───────────────────────────────────────────────────────────────────── */
.hero {
  max-width: 800px;
  margin: 0 auto;
  padding: 100px 40px 80px;
  text-align: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text3);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.dot {
  width: 6px; height: 6px;
  background: var(--gold);
  border-radius: 50%;
  display: inline-block;
}
.hero-heading {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 24px;
}
.hero-heading em {
  font-style: normal;
  color: var(--gold);
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text2);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-proof {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--text3);
  font-family: var(--font-mono);
}

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-block;
  padding: 13px 26px;
  background: var(--gold);
  color: #0c0c0c;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  letter-spacing: 0.2px;
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-1px); }
.btn-primary.btn-large { padding: 16px 36px; font-size: 1rem; }

.btn-ghost {
  display: inline-block;
  padding: 13px 26px;
  background: transparent;
  color: var(--text2);
  border-radius: 10px;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid var(--border2);
  transition: all 0.2s;
}
.btn-ghost:hover { border-color: var(--text3); color: var(--text); }

/* ── Spec Strip ─────────────────────────────────────────────────────────────── */
.spec-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 24px 40px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  flex-wrap: wrap;
  gap: 0;
}
.spec-item {
  padding: 12px 32px;
  text-align: center;
}
.spec-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 4px;
}
.spec-value {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}
.spec-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}
@media (max-width: 640px) { .spec-divider { display: none; } }

/* ── Sections ───────────────────────────────────────────────────────────────── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 16px;
}
.section-sub {
  color: var(--text2);
  font-size: 1rem;
  max-width: 480px;
}

/* ── How it works ───────────────────────────────────────────────────────────── */
.how-section {
  max-width: 960px;
  margin: 0 auto;
  padding: 80px 40px;
}
.steps {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.step {
  flex: 1;
  min-width: 220px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}
.step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.step h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.step p { font-size: 0.875rem; color: var(--text2); line-height: 1.6; }
.step-arrow {
  font-size: 1.5rem;
  color: var(--text3);
  padding-top: 40px;
  flex-shrink: 0;
}
@media (max-width: 700px) { .step-arrow { display: none; } }

/* ── Pricing ────────────────────────────────────────────────────────────────── */
.pricing-section {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 40px 80px;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 40px;
}
.pricing-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}
.pricing-card-label {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 12px;
}
.pricing-card-desc {
  font-size: 0.875rem;
  color: var(--text2);
  line-height: 1.6;
}

/* ── CTA Banner ─────────────────────────────────────────────────────────────── */
.cta-banner {
  padding: 0 40px 80px;
}
.cta-banner-inner {
  max-width: 960px;
  margin: 0 auto;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  text-align: center;
  background-image: radial-gradient(ellipse at 50% 0%, var(--gold-dim) 0%, transparent 60%);
}
.cta-banner-inner h2 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.cta-banner-inner p {
  color: var(--text2);
  margin-bottom: 28px;
  font-size: 1rem;
}

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 40px;
}
.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
}
.footer-links {
  display: flex;
  gap: 24px;
  font-size: 0.875rem;
  color: var(--text2);
}
.footer-links a:hover { color: var(--text); }
.footer-note {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text3);
  letter-spacing: 1px;
}

/* ── Quote page specific ────────────────────────────────────────────────────── */
.quote-page { max-width: 1000px; margin: 0 auto; padding: 48px 40px; }
.quote-page-header { margin-bottom: 40px; }
.quote-page-header h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 8px;
}
.quote-page-header p { color: var(--text2); font-size: 0.95rem; }

/* Upload zone */
.upload-zone {
  border: 2px dashed var(--border2);
  border-radius: var(--radius-lg);
  padding: 56px 32px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg3);
  position: relative;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--gold);
  background: #1c1a15;
}
.upload-zone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.upload-icon { font-size: 3rem; margin-bottom: 16px; }
.upload-zone h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.upload-zone p { color: var(--text2); font-size: 0.875rem; }
.file-badge {
  display: inline-block;
  margin-top: 14px;
  padding: 5px 14px;
  background: var(--gold-dim);
  border: 1px solid var(--gold);
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* Progress */
.progress-wrap { display: none; margin-top: 24px; }
.progress-wrap.visible { display: block; }
.progress-label { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text2); margin-bottom: 8px; }
.progress-bar { height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; }
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 2px;
  width: 0%;
  transition: width 0.4s ease;
}

/* Error */
.error-box {
  display: none;
  margin-top: 20px;
  padding: 16px 20px;
  background: #1e0f0f;
  border: 1px solid #3d1a1a;
  border-radius: var(--radius);
  color: #ff8080;
  font-size: 0.875rem;
}
.error-box.visible { display: block; }

/* Results */
.results { display: none; margin-top: 40px; animation: fadeUp 0.4s ease; }
.results.visible { display: block; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Viewer */
.viewer-wrap {
  background: #080808;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}
.viewer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}
.viewer-toolbar-left { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text3); }
.viewer-controls { display: flex; gap: 6px; }
.ctrl-btn {
  padding: 5px 12px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 6px;
  color: var(--text2);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.15s;
}
.ctrl-btn:hover { background: #222; color: var(--text); }
.ctrl-btn.active { background: var(--gold-dim); border-color: var(--gold); color: var(--gold); }
#renderCanvas { width: 100%; height: 440px; display: block; touch-action: none; }
.sheet-tabs {
  display: flex;
  gap: 6px;
  padding: 10px 16px;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  overflow-x: auto;
}
.sheet-tab {
  padding: 5px 14px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  cursor: pointer;
  border: 1px solid var(--border2);
  background: var(--bg3);
  color: var(--text2);
  white-space: nowrap;
  transition: all 0.15s;
}
.sheet-tab.active { background: var(--gold-dim); border-color: var(--gold); color: var(--gold); }

/* Stats */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 8px;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}
.stat-value.gold { color: var(--gold); }

/* Price card */
.price-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
}
.price-card-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text2);
}
.price-row:last-child { border-bottom: none; }
.price-row .amount { color: var(--text); font-weight: 500; font-family: var(--font-mono); }
.price-row.total-row {
  margin-top: 8px;
  padding-top: 18px;
  border-top: 1px solid var(--border2);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.price-row.total-row .amount { color: var(--gold); font-size: 1.4rem; font-weight: 700; }

/* CTA row */
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
.btn-approve {
  flex: 1;
  min-width: 200px;
  padding: 15px 28px;
  background: var(--gold);
  color: #0c0c0c;
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-approve:hover { background: var(--gold-light); transform: translateY(-1px); }
.btn-reset {
  flex: 1;
  min-width: 200px;
  padding: 15px 28px;
  background: transparent;
  color: var(--text2);
  border: 1px solid var(--border2);
  border-radius: 10px;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-reset:hover { border-color: var(--text3); color: var(--text); }

/* Parts grid */
.parts-section { margin-top: 8px; }
.parts-section-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.parts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}
.part-chip {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.part-chip:hover { border-color: var(--border2); background: #1a1a1a; }
.part-chip.selected { border-color: var(--gold); background: var(--gold-dim); }
.chip-id { font-family: var(--font-mono); font-size: 0.65rem; color: var(--text3); margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.part-dot { width: 7px; height: 7px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.chip-dims { font-size: 0.85rem; font-weight: 500; margin-bottom: 2px; }
.chip-cut { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text2); }

.quote-note {
  margin-top: 20px;
  padding: 14px 18px;
  background: var(--bg3);
  border-left: 3px solid #c8a96e44;
  border-radius: 0 8px 8px 0;
  font-size: 0.8rem;
  color: var(--text3);
  font-family: var(--font-mono);
}

/* ── How It Works page ──────────────────────────────────────────────────────── */
.hiw-page { max-width: 760px; margin: 0 auto; padding: 64px 40px; }
.hiw-page h1 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
}
.hiw-page .lead { color: var(--text2); font-size: 1.05rem; margin-bottom: 56px; line-height: 1.7; }
.hiw-block { margin-bottom: 48px; padding-bottom: 48px; border-bottom: 1px solid var(--border); }
.hiw-block:last-child { border-bottom: none; }
.hiw-num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--gold); letter-spacing: 1px; margin-bottom: 12px; }
.hiw-block h2 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; margin-bottom: 12px; }
.hiw-block p { color: var(--text2); font-size: 0.95rem; line-height: 1.7; }
.hiw-tip {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--text2);
}
.hiw-tip strong { color: var(--gold); }

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .nav { padding: 16px 20px; }
  .nav-links .nav-link { display: none; }
  .hero { padding: 64px 20px 48px; }
  .how-section, .pricing-section { padding-left: 20px; padding-right: 20px; }
  .quote-page { padding: 32px 20px; }
  .hiw-page { padding: 40px 20px; }
  .cta-banner { padding: 0 20px 48px; }
  .cta-banner-inner { padding: 40px 24px; }
  .footer { padding: 24px 20px; }
  .spec-strip { padding: 20px; gap: 8px; }
  .spec-item { padding: 8px 16px; }
}