/* FitPredictor - Secondhand Clothing Fit Predictor */
:root {
  --c-brown: #6B4226;
  --c-brown-light: #8B6340;
  --c-brown-dark: #4A2E1A;
  --c-cream: #F5E6D3;
  --c-cream-dark: #E8D5BE;
  --c-sage: #7A8B6F;
  --c-sage-light: #E8EDE4;
  --c-sage-dark: #5A6B4F;
  --c-rust: #C45B28;
  --c-rust-light: #FFF0E8;
  --c-white: #FFFFFF;
  --c-gray-50: #FAFAF8;
  --c-gray-100: #F3F2EF;
  --c-gray-200: #E5E3DD;
  --c-gray-400: #9E9A91;
  --c-gray-600: #6B6660;
  --c-gray-800: #3A3632;
  --c-success: #4A7C59;
  --c-success-light: #E8F0EA;
  --c-warn: #B8860B;
  --c-warn-light: #FFF8E1;
  --c-danger: #C0392B;
  --c-danger-light: #FDEDEC;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --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);
  color: var(--c-gray-800);
  background: var(--c-gray-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-brown); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--c-brown-dark); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--c-gray-800);
  font-weight: 700;
  font-size: 1.15rem;
}
.logo:hover { color: var(--c-brown); }
.logo-accent { color: var(--c-brown); }
.main-nav { display: flex; gap: 24px; }
.main-nav a {
  text-decoration: none;
  color: var(--c-gray-600);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.main-nav a:hover { color: var(--c-brown); border-bottom-color: var(--c-brown); }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--c-cream) 0%, var(--c-cream-dark) 100%);
  padding: 80px 0;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--c-brown-dark);
  margin-bottom: 16px;
  line-height: 1.2;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--c-gray-600);
  max-width: 560px;
  margin: 0 auto 32px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 10px 20px;
}
.btn-primary { background: var(--c-brown); color: var(--c-white); }
.btn-primary:hover { background: var(--c-brown-dark); color: var(--c-white); }
.btn-secondary { background: var(--c-sage); color: var(--c-white); }
.btn-secondary:hover { background: var(--c-sage-dark); color: var(--c-white); }
.btn-ghost { background: transparent; color: var(--c-brown); border: 1.5px solid var(--c-gray-200); }
.btn-ghost:hover { border-color: var(--c-brown); background: var(--c-cream); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-sm { padding: 6px 14px; font-size: 0.82rem; }
.btn-xs { padding: 4px 10px; font-size: 0.78rem; }
.btn-full { width: 100%; margin-top: 16px; }

/* Section titles */
.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--c-brown-dark);
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-cream-dark);
}

/* Predictor */
.predictor-section { padding: 60px 0; }
.predictor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}
.panel {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--c-gray-200);
}
.panel-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-brown-dark);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-desc {
  font-size: 0.85rem;
  color: var(--c-gray-600);
  margin-bottom: 20px;
}
.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 4px; }
.field label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--c-gray-600);
}
.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.input-wrap input, .field select {
  width: 100%;
  padding: 10px 36px 10px 12px;
  border: 1.5px solid var(--c-gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font);
  color: var(--c-gray-800);
  background: var(--c-white);
  transition: var(--transition);
}
.input-wrap input:focus, .field select:focus {
  outline: none;
  border-color: var(--c-brown);
  box-shadow: 0 0 0 3px rgba(107,66,38,0.1);
}
.input-suf {
  position: absolute;
  right: 12px;
  font-size: 0.8rem;
  color: var(--c-gray-400);
  pointer-events: none;
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%239E9A91' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.hint { font-size: 0.75rem; color: var(--c-gray-400); }
.panel-actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.save-status { font-size: 0.82rem; color: var(--c-sage-dark); margin-top: 8px; min-height: 1.2em; }

.preset-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.preset-label { font-size: 0.8rem; color: var(--c-gray-400); }

/* Result panel */
.panel-result { grid-column: 1 / -1; }
.result-content { min-height: 60px; }
.result-empty {
  color: var(--c-gray-400);
  font-size: 0.9rem;
  padding: 16px 0;
}
.result-verdict {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-weight: 700;
  font-size: 1.1rem;
}
.result-verdict.good { background: var(--c-success-light); color: var(--c-success); }
.result-verdict.warn { background: var(--c-warn-light); color: var(--c-warn); }
.result-verdict.bad { background: var(--c-danger-light); color: var(--c-danger); }
.result-verdict .verdict-icon { font-size: 1.5rem; }
.result-details { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-bottom: 16px; }
.result-detail {
  background: var(--c-gray-50);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  border: 1px solid var(--c-gray-200);
}
.result-detail .label { font-size: 0.78rem; color: var(--c-gray-600); font-weight: 600; }
.result-detail .value { font-size: 1rem; font-weight: 700; color: var(--c-gray-800); }
.result-detail .note { font-size: 0.78rem; color: var(--c-gray-600); margin-top: 2px; }
.result-explanation { font-size: 0.9rem; color: var(--c-gray-600); line-height: 1.7; }
.result-actions { display: flex; gap: 8px; margin-top: 16px; }

/* Reference */
.reference-section { padding: 60px 0; background: var(--c-white); }
.ref-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.ref-card {
  background: var(--c-gray-50);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--c-gray-200);
}
.ref-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-brown-dark);
  margin-bottom: 16px;
}
.ref-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.ref-table th {
  text-align: left;
  padding: 8px 12px;
  background: var(--c-cream);
  color: var(--c-brown-dark);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.ref-table td { padding: 8px 12px; border-bottom: 1px solid var(--c-gray-200); color: var(--c-gray-800); }
.ref-table tr:last-child td { border-bottom: none; }
.ref-table tr:hover td { background: var(--c-cream); }

/* Guide */
.guide-section { padding: 60px 0; }
.guide-grid { display: grid; grid-template-columns: 1fr 320px; gap: 32px; }
.guide-block { margin-bottom: 36px; }
.guide-block h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-brown-dark);
  margin-bottom: 12px;
}
.guide-block p { margin-bottom: 12px; color: var(--c-gray-600); }
.guide-block ul { padding-left: 20px; margin-bottom: 12px; }
.guide-block li { margin-bottom: 6px; color: var(--c-gray-600); }
.guide-block strong { color: var(--c-gray-800); }

.sidebar-card {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--c-gray-200);
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.sidebar-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-brown-dark);
  margin-bottom: 8px;
}
.sidebar-card p { font-size: 0.85rem; color: var(--c-gray-600); margin-bottom: 8px; }
.card-preview {
  background: var(--c-cream);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin: 12px 0;
  border: 1px solid var(--c-cream-dark);
}
.card-inner {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--c-brown-dark);
}
.card-inner strong { font-size: 0.9rem; margin-bottom: 4px; }
.assumptions-list { padding-left: 16px; }
.assumptions-list li { font-size: 0.82rem; color: var(--c-gray-600); margin-bottom: 6px; }
.affiliate-note { font-size: 0.78rem; color: var(--c-gray-400); font-style: italic; }

/* Footer */
.site-footer {
  background: var(--c-brown-dark);
  color: var(--c-cream);
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand { font-weight: 700; font-size: 1.1rem; margin-bottom: 8px; }
.footer-desc { font-size: 0.85rem; color: var(--c-cream-dark); max-width: 360px; }
.footer-heading { font-weight: 600; font-size: 0.85rem; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.footer-grid a {
  display: block;
  color: var(--c-cream-dark);
  text-decoration: none;
  font-size: 0.85rem;
  margin-bottom: 6px;
  transition: var(--transition);
}
.footer-grid a:hover { color: var(--c-white); }
.footer-copy {
  font-size: 0.78rem;
  color: var(--c-cream-dark);
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(245,230,211,0.15);
}

/* Responsive */
@media (max-width: 900px) {
  .predictor-grid { grid-template-columns: 1fr; }
  .panel-result { grid-column: auto; }
  .ref-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .hero { padding: 48px 0; }
  .field-grid { grid-template-columns: 1fr; }
  .main-nav { gap: 14px; }
  .main-nav a { font-size: 0.82rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .preset-row { flex-direction: column; align-items: flex-start; }
}

/* Print */
@media print {
  .site-header, .site-footer, .hero, .predictor-section, .reference-section, .result-actions, .panel-actions, .preset-row { display: none !important; }
  .guide-section { padding: 0; }
  body { background: white; color: black; }
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--c-brown);
  outline-offset: 2px;
}

/* Visually hidden */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}



/* 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;
}