/* GearRater — Secondhand Gear Condition Rater */
:root {
  --clr-bg: #F5F0EB;
  --clr-surface: #FFFFFF;
  --clr-surface-alt: #EDE7DF;
  --clr-text: #2B2520;
  --clr-text-muted: #6B6058;
  --clr-text-light: #9B8E82;
  --clr-accent: #5B7553;
  --clr-accent-light: #E8F0E5;
  --clr-accent-dark: #3D5237;
  --clr-border: #D6CFC6;
  --clr-focus: #5B7553;
  --clr-grade-5: #2E7D32;
  --clr-grade-4: #5B7553;
  --clr-grade-3: #B8860B;
  --clr-grade-2: #C67B30;
  --clr-grade-1: #A0522D;
  --clr-grade-0: #8B2500;
  --clr-grade-pending: #9B8E82;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(43,37,32,.08);
  --shadow-lg: 0 8px 32px rgba(43,37,32,.12);
  --font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1120px;
  --transition: .2s ease;
}

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

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

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

a { color: var(--clr-accent-dark); text-decoration: underline; text-underline-offset: 2px; }
a:hover, a:focus { color: var(--clr-accent); }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 1.25rem; }

.skip-link {
  position: absolute; top: -100%; left: 1rem; z-index: 100;
  background: var(--clr-accent); color: #fff; padding: .5rem 1rem;
  border-radius: var(--radius-sm); font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: 1rem; }

/* Header */
.site-header {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  position: sticky; top: 0; z-index: 50;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between; height: 56px;
}
.logo {
  display: flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: 1.1rem; color: var(--clr-text); text-decoration: none;
}
.logo:hover, .logo:focus { color: var(--clr-accent-dark); }
.main-nav ul { display: flex; list-style: none; gap: 1.5rem; }
.main-nav a {
  text-decoration: none; color: var(--clr-text-muted); font-weight: 500;
  padding: .25rem 0; border-bottom: 2px solid transparent; transition: var(--transition);
}
.main-nav a:hover, .main-nav a:focus { color: var(--clr-accent-dark); border-bottom-color: var(--clr-accent); }
.main-nav a[aria-current="page"] { color: var(--clr-accent-dark); border-bottom-color: var(--clr-accent); }

/* Intro */
.intro { padding: 3rem 0 1.5rem; }
.intro h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; line-height: 1.2; margin-bottom: .75rem; }
.intro-text { font-size: 1.1rem; color: var(--clr-text-muted); max-width: 600px; }

/* Workspace */
.rater-workspace { padding: 1.5rem 0 3rem; }
.workspace-grid {
  display: grid; grid-template-columns: 1fr 340px; gap: 2rem; align-items: start;
}
.workspace-controls { background: var(--clr-surface); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); }
.workspace-controls h2 { font-size: 1.2rem; margin-bottom: 1.25rem; }

.field-group { margin-bottom: 1.25rem; }
.field-label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .4rem; }
.optional { font-weight: 400; color: var(--clr-text-light); font-size: .85rem; }

input[type="text"], textarea {
  width: 100%; padding: .6rem .75rem; border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm); font-family: var(--font); font-size: .95rem;
  background: var(--clr-bg); color: var(--clr-text); transition: var(--transition);
}
input[type="text"]:focus, textarea:focus { outline: none; border-color: var(--clr-focus); box-shadow: 0 0 0 3px rgba(91,117,83,.15); }
textarea { resize: vertical; }

/* Category cards */
.category-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem;
}
.category-card { cursor: pointer; }
.category-card input { position: absolute; opacity: 0; pointer-events: none; }
.card-inner {
  display: flex; flex-direction: column; align-items: center; gap: .25rem;
  padding: 1rem .75rem; border: 2px solid var(--clr-border); border-radius: var(--radius-sm);
  background: var(--clr-bg); transition: var(--transition); text-align: center;
}
.category-card:hover .card-inner { border-color: var(--clr-accent); }
.category-card input:focus-visible + .card-inner { outline: 3px solid var(--clr-focus); outline-offset: 2px; }
.category-card input:checked + .card-inner { border-color: var(--clr-accent); background: var(--clr-accent-light); }
.card-icon { color: var(--clr-accent); }
.card-title { font-weight: 600; font-size: .9rem; }
.card-sub { font-size: .75rem; color: var(--clr-text-muted); }

/* Checklist */
.checklist-area { margin-top: 1.25rem; }
.checklist-group { margin-bottom: 1.25rem; }
.checklist-group h3 {
  font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  color: var(--clr-text-muted); margin-bottom: .5rem; padding-bottom: .25rem;
  border-bottom: 1px solid var(--clr-border);
}
.checklist-item {
  display: flex; align-items: flex-start; gap: .6rem; padding: .45rem 0;
  border-bottom: 1px solid var(--clr-surface-alt); font-size: .9rem;
}
.checklist-item:last-child { border-bottom: none; }
.checklist-item input[type="checkbox"] {
  width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px;
  accent-color: var(--clr-accent); cursor: pointer;
}
.checklist-item label { cursor: pointer; flex: 1; }
.checklist-item .severity {
  font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em;
  padding: .1rem .4rem; border-radius: 4px; flex-shrink: 0;
}
.severity-major { background: #FBE9E7; color: var(--clr-grade-0); }
.severity-moderate { background: #FFF8E1; color: var(--clr-grade-3); }
.severity-minor { background: var(--clr-accent-light); color: var(--clr-grade-4); }

/* Result panel */
.workspace-result {
  background: var(--clr-surface); border-radius: var(--radius); padding: 1.5rem;
  box-shadow: var(--shadow); position: sticky; top: 72px;
}
.workspace-result h2 { font-size: 1.1rem; margin-bottom: 1rem; }
.grade-display { text-align: center; padding: 1.5rem 0; }
.grade-badge {
  display: inline-block; padding: .4rem 1.2rem; border-radius: 999px;
  font-weight: 700; font-size: 1.1rem; color: #fff; letter-spacing: .02em;
}
.grade-5 { background: var(--clr-grade-5); }
.grade-4 { background: var(--clr-grade-4); }
.grade-3 { background: var(--clr-grade-3); }
.grade-2 { background: var(--clr-grade-2); }
.grade-1 { background: var(--clr-grade-1); }
.grade-0 { background: var(--clr-grade-0); }
.grade-pending { background: var(--clr-grade-pending); }
.grade-label { display: block; margin-top: .5rem; font-size: .9rem; color: var(--clr-text-muted); }

.grade-breakdown { margin-bottom: 1.25rem; }
.grade-breakdown h3 { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--clr-text-muted); margin-bottom: .5rem; }
.grade-breakdown dl { display: grid; grid-template-columns: 1fr auto; gap: .25rem .75rem; font-size: .85rem; }
.grade-breakdown dt { color: var(--clr-text-muted); }
.grade-breakdown dd { font-weight: 600; text-align: right; }

.result-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .5rem 1rem; border-radius: var(--radius-sm); font-weight: 600;
  font-size: .85rem; font-family: var(--font); cursor: pointer; border: 1.5px solid transparent;
  transition: var(--transition);
}
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--clr-accent); color: #fff; }
.btn-primary:hover:not(:disabled), .btn-primary:focus:not(:disabled) { background: var(--clr-accent-dark); }
.btn-ghost { background: var(--clr-bg); color: var(--clr-text); border-color: var(--clr-border); }
.btn-ghost:hover:not(:disabled), .btn-ghost:focus:not(:disabled) { background: var(--clr-surface-alt); border-color: var(--clr-text-light); }
.btn:focus-visible { outline: 3px solid var(--clr-focus); outline-offset: 2px; }

.save-notice { margin-top: .75rem; font-size: .8rem; color: var(--clr-accent-dark); min-height: 1.2em; }

/* Grade table */
.grade-table-section { padding: 2rem 0; }
.grade-table-section h2 { font-size: 1.3rem; margin-bottom: .4rem; }
.section-desc { color: var(--clr-text-muted); margin-bottom: 1rem; font-size: .95rem; }
.table-wrap { overflow-x: auto; }
.grade-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.grade-table th, .grade-table td { padding: .75rem 1rem; text-align: left; border-bottom: 1px solid var(--clr-border); }
.grade-table th { font-weight: 700; font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--clr-text-muted); background: var(--clr-surface-alt); }
.grade-table tr:last-child td { border-bottom: none; }
.grade-table td:first-child { white-space: nowrap; }

/* Guide section */
.guide-section { padding: 2rem 0; background: var(--clr-surface); border-top: 1px solid var(--clr-border); }
.guide-section h2 { font-size: 1.3rem; margin-bottom: 1.25rem; }
.guide-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; }
.guide-card {
  background: var(--clr-bg); border-radius: var(--radius-sm); padding: 1.25rem;
  border: 1px solid var(--clr-border);
}
.guide-card h3 { font-size: 1rem; margin-bottom: .5rem; }
.guide-card p { font-size: .9rem; color: var(--clr-text-muted); }

/* How section */
.how-section { padding: 2.5rem 0; }
.how-section h2 { font-size: 1.3rem; margin-bottom: 1.25rem; }
.how-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }
.how-step { text-align: center; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%; background: var(--clr-accent);
  color: #fff; font-weight: 700; font-size: 1rem; margin-bottom: .75rem;
}
.how-step h3 { font-size: 1rem; margin-bottom: .4rem; }
.how-step p { font-size: .9rem; color: var(--clr-text-muted); }

.why-block {
  background: var(--clr-accent-light); border-radius: var(--radius); padding: 1.5rem;
  border: 1px solid rgba(91,117,83,.2);
}
.why-block h3 { font-size: 1.05rem; margin-bottom: .5rem; }
.why-block p { font-size: .95rem; color: var(--clr-text-muted); }

/* Footer */
.site-footer {
  margin-top: auto; background: var(--clr-surface); border-top: 1px solid var(--clr-border); padding: 1.5rem 0;
}
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; }
.footer-brand { font-weight: 600; font-size: .9rem; }
.footer-nav { display: flex; gap: 1.25rem; }
.footer-nav a { font-size: .85rem; color: var(--clr-text-muted); text-decoration: none; }
.footer-nav a:hover, .footer-nav a:focus { color: var(--clr-accent-dark); text-decoration: underline; }
.footer-meta { font-size: .8rem; color: var(--clr-text-light); margin-top: .75rem; }

/* Responsive */
@media (max-width: 860px) {
  .workspace-grid { grid-template-columns: 1fr; }
  .workspace-result { position: static; }
}
@media (max-width: 560px) {
  .category-grid { grid-template-columns: 1fr 1fr; }
  .intro { padding: 2rem 0 1rem; }
  .footer-top { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 400px) {
  .category-grid { grid-template-columns: 1fr; }
  .result-actions { flex-direction: column; }
  .btn { justify-content: center; }
}

/* Print */
@media print {
  .site-header, .site-footer, .result-actions, .how-section, .guide-section { display: none; }
  .workspace-result { position: static; box-shadow: none; border: 1px solid #ccc; }
  body { background: #fff; color: #000; }
}



/* 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;
}