/* Fabric Weight & Drape Visualizer — styles.css */
:root {
  --color-bg: #FDF8F4;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F5EDE4;
  --color-text: #2C1810;
  --color-text-secondary: #6B5A4E;
  --color-text-muted: #9A8B7E;
  --color-primary: #8B5E3C;
  --color-primary-hover: #6E4A2F;
  --color-primary-light: #F0E4D8;
  --color-accent: #C4956A;
  --color-accent-light: #E8D5C0;
  --color-border: #D9C9B8;
  --color-success: #5A8A5A;
  --color-warning: #C4956A;
  --color-error: #B85C5C;
  --color-focus: #8B5E3C;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(44,24,16,0.08);
  --shadow-md: 0 4px 12px rgba(44,24,16,0.1);
  --shadow-lg: 0 8px 24px rgba(44,24,16,0.12);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
  --max-width: 1120px;
  --transition: 0.2s ease;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-hover); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.skip-link { position: absolute; top: -100%; left: 1rem; background: var(--color-primary); color: #fff; padding: 0.5rem 1rem; border-radius: var(--radius-sm); z-index: 100; }
.skip-link:focus { top: 1rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* Header */
.site-header { background: var(--color-surface); border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 0; gap: 1rem; }
.logo { display: flex; align-items: center; gap: 0.5rem; text-decoration: none; color: var(--color-text); }
.logo-text { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }
.logo-accent { color: var(--color-primary); }
.main-nav ul { display: flex; list-style: none; gap: 1.5rem; }
.main-nav a { font-size: 0.9rem; font-weight: 500; color: var(--color-text-secondary); padding: 0.25rem 0; border-bottom: 2px solid transparent; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* Hero */
.hero-section { padding: 3rem 0 2rem; }
.hero-content { max-width: 680px; }
.hero-content h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 0.75rem; }
.hero-sub { font-size: 1.1rem; color: var(--color-text-secondary); margin-bottom: 1.5rem; line-height: 1.5; }

/* Search */
.search-bar { display: flex; gap: 0; margin-bottom: 1rem; }
.search-bar input { flex: 1; padding: 0.75rem 1rem; border: 2px solid var(--color-border); border-right: none; border-radius: var(--radius-md) 0 0 var(--radius-md); font-size: 1rem; background: var(--color-surface); color: var(--color-text); font-family: var(--font-sans); transition: border-color var(--transition); }
.search-bar input:focus { border-color: var(--color-primary); }
.search-bar .search-btn { padding: 0.75rem 1.25rem; background: var(--color-primary); color: #fff; border: 2px solid var(--color-primary); border-radius: 0 var(--radius-md) var(--radius-md) 0; cursor: pointer; display: flex; align-items: center; transition: background var(--transition); }
.search-bar .search-btn:hover { background: var(--color-primary-hover); }

/* Filter chips */
.filter-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip { padding: 0.4rem 1rem; border-radius: 999px; border: 1.5px solid var(--color-border); background: var(--color-surface); color: var(--color-text-secondary); font-size: 0.85rem; font-weight: 500; cursor: pointer; transition: all var(--transition); font-family: var(--font-sans); }
.chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.chip.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* Section headings */
.section-heading { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 0.5rem; }
.section-sub { color: var(--color-text-secondary); margin-bottom: 1.5rem; font-size: 0.95rem; }

/* Fabric grid */
.results-section { padding: 2rem 0; }
.fabric-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; }
.empty-state { grid-column: 1 / -1; text-align: center; padding: 3rem; color: var(--color-text-muted); font-size: 1rem; }

/* Fabric card */
.fabric-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 1.25rem; transition: box-shadow var(--transition), transform var(--transition); cursor: pointer; position: relative; }
.fabric-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.fabric-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.75rem; }
.fabric-name { font-size: 1.1rem; font-weight: 700; }
.fabric-type { font-size: 0.75rem; padding: 0.2rem 0.6rem; border-radius: 999px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.type-woven { background: var(--color-primary-light); color: var(--color-primary); }
.type-knit { background: #E8D5F0; color: #7B4A9A; }

/* Drape visual */
.drape-visual { height: 60px; border-radius: var(--radius-sm); margin-bottom: 0.75rem; position: relative; overflow: hidden; }
.drape-visual svg { width: 100%; height: 100%; }

.fabric-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-bottom: 0.75rem; }
.stat { background: var(--color-surface-alt); padding: 0.5rem 0.75rem; border-radius: var(--radius-sm); }
.stat-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); font-weight: 600; }
.stat-value { font-size: 0.9rem; font-weight: 600; color: var(--color-text); }

.fabric-uses { font-size: 0.85rem; color: var(--color-text-secondary); margin-bottom: 0.75rem; line-height: 1.4; }
.fabric-actions { display: flex; gap: 0.5rem; }
.fabric-actions .btn { flex: 1; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; padding: 0.5rem 1rem; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 600; font-family: var(--font-sans); cursor: pointer; transition: all var(--transition); border: 1.5px solid transparent; text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: #fff; }
.btn-secondary { background: var(--color-surface); color: var(--color-primary); border-color: var(--color-primary); }
.btn-secondary:hover { background: var(--color-primary-light); }
.btn-ghost { background: transparent; color: var(--color-text-secondary); border-color: var(--color-border); }
.btn-ghost:hover { background: var(--color-surface-alt); color: var(--color-text); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Comparison */
.comparison-section { padding: 2rem 0; background: var(--color-surface-alt); }
.compare-workspace { display: grid; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: stretch; margin-bottom: 1.5rem; }
.compare-slot { background: var(--color-surface); border: 2px dashed var(--color-border); border-radius: var(--radius-lg); padding: 1.5rem; min-height: 160px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; transition: border-color var(--transition); }
.compare-slot.filled { border-style: solid; border-color: var(--color-accent); }
.compare-placeholder { color: var(--color-text-muted); }
.compare-placeholder p { margin-top: 0.5rem; font-size: 0.9rem; }
.compare-vs { display: flex; align-items: center; font-weight: 700; color: var(--color-text-muted); font-size: 0.9rem; }
.compare-slot .mini-card { width: 100%; }
.compare-slot .mini-card h4 { font-size: 1rem; margin-bottom: 0.25rem; }
.compare-slot .mini-card p { font-size: 0.8rem; color: var(--color-text-secondary); }
.compare-slot .remove-compare { margin-top: 0.5rem; font-size: 0.75rem; }

.compare-table-wrap { overflow-x: auto; margin-bottom: 1rem; }
.compare-table { width: 100%; border-collapse: collapse; background: var(--color-surface); border-radius: var(--radius-md); overflow: hidden; }
.compare-table th, .compare-table td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }
.compare-table th { background: var(--color-primary-light); font-weight: 700; color: var(--color-primary); }
.compare-table td:first-child { font-weight: 600; color: var(--color-text-secondary); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* Reference section */
.reference-section { padding: 3rem 0; }
.ref-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; }
.ref-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 1.5rem; }
.ref-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--color-primary); }
.ref-card p, .ref-card li { font-size: 0.9rem; color: var(--color-text-secondary); line-height: 1.6; }
.ref-card ul, .ref-card ol { padding-left: 1.25rem; }
.ref-card li { margin-bottom: 0.5rem; }
.ref-card strong { color: var(--color-text); }

.weight-scale { margin-top: 0.75rem; }
.weight-scale dt { font-weight: 700; font-size: 0.85rem; color: var(--color-text); margin-top: 0.5rem; }
.weight-scale dd { font-size: 0.85rem; color: var(--color-text-secondary); margin-left: 0; }

.sub-table { width: 100%; border-collapse: collapse; margin-top: 0.75rem; font-size: 0.85rem; }
.sub-table th, .sub-table td { padding: 0.5rem 0.75rem; text-align: left; border-bottom: 1px solid var(--color-border); }
.sub-table th { background: var(--color-surface-alt); font-weight: 700; color: var(--color-primary); }

/* Worksheet */
.worksheet-section { padding: 3rem 0; background: var(--color-surface-alt); }
.worksheet-form { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 1.5rem; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; margin-bottom: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group-full { grid-column: 1 / -1; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--color-text); }
.form-group input, .form-group select, .form-group textarea { padding: 0.6rem 0.75rem; border: 1.5px solid var(--color-border); border-radius: var(--radius-sm); font-size: 0.9rem; font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); transition: border-color var(--transition); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--color-primary); }
.worksheet-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.saved-note { margin-top: 0.75rem; color: var(--color-success); font-weight: 600; font-size: 0.9rem; }

/* Footer */
.site-footer { background: var(--color-surface); border-top: 1px solid var(--color-border); padding: 2rem 0; margin-top: auto; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2rem; }
.footer-brand p { font-size: 0.85rem; color: var(--color-text-secondary); margin-top: 0.5rem; }
.footer-nav h4 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); margin-bottom: 0.5rem; }
.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 0.35rem; }
.footer-nav a { font-size: 0.85rem; color: var(--color-text-secondary); }
.footer-nav a:hover { color: var(--color-primary); }
.footer-meta p { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 0.25rem; }
.footer-meta a { color: var(--color-text-muted); text-decoration: underline; }
.footer-meta a:hover { color: var(--color-primary); }

/* Weight category colors */
.weight-sheer { background: linear-gradient(135deg, #E8F0FE, #D2E3FC); }
.weight-light { background: linear-gradient(135deg, #E6F4EA, #CEEAD6); }
.weight-medium { background: linear-gradient(135deg, #FEF7E0, #FEECB3); }
.weight-heavy { background: linear-gradient(135deg, #FCE8E6, #F5C6C2); }
.weight-knit { background: linear-gradient(135deg, #F3E8FD, #E8D5F0); }

/* Responsive */
@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; }
  .main-nav ul { gap: 1rem; }
  .hero-section { padding: 2rem 0 1.5rem; }
  .fabric-grid { grid-template-columns: 1fr; }
  .compare-workspace { grid-template-columns: 1fr; }
  .compare-vs { text-align: center; padding: 0.5rem 0; }
  .ref-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  .filter-chips { gap: 0.35rem; }
  .chip { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
  .worksheet-actions { flex-direction: column; }
  .worksheet-actions .btn { width: 100%; }
}

/* Print */
@media print {
  .site-header, .site-footer, .search-bar, .filter-chips, .fabric-actions, .compare-actions, .worksheet-actions, .skip-link { display: none !important; }
  body { background: #fff; color: #000; }
  .comparison-section, .worksheet-section { background: #fff; }
  .compare-slot { border: 1px solid #ccc; }
  .fabric-card { break-inside: avoid; }
}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}