/* Micro Adventure Distance Finder - Styles */
:root {
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F0EDE6;
  --color-primary: #2D5F3E;
  --color-primary-light: #3A7A52;
  --color-primary-dark: #1E4029;
  --color-accent: #F4A261;
  --color-accent-light: #F7C08A;
  --color-text: #2C2C2C;
  --color-text-secondary: #5A5A5A;
  --color-text-muted: #8A8A8A;
  --color-border: #D6D2C8;
  --color-success: #4A8C5C;
  --color-error: #C45B3A;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --max-width: 960px;
  --transition: 0.2s ease;
}

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

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

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;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }

.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; }

/* Header */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container { display: flex; align-items: center; justify-content: space-between; }

.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); }

.site-nav { display: flex; gap: 1.5rem; }
.site-nav a { color: var(--color-text-secondary); text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: color var(--transition); }
.site-nav a:hover { color: var(--color-primary); }

/* Hero */
.hero { background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%); color: #fff; padding: 3.5rem 0 3rem; text-align: center; }
.hero h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 0.75rem; }
.hero-sub { font-size: 1.1rem; opacity: 0.9; max-width: 560px; margin: 0 auto; line-height: 1.5; }

/* Finder */
.finder { padding: 2rem 0; }
.finder-card { background: var(--color-surface); border-radius: var(--radius-lg); padding: 1.75rem; box-shadow: var(--shadow-md); border: 1px solid var(--color-border); }
.finder-row { display: grid; grid-template-columns: 1fr auto; gap: 1.5rem; align-items: end; }

.field-group { display: flex; flex-direction: column; gap: 0.35rem; }
.field-label { font-size: 0.85rem; font-weight: 600; color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: 0.04em; }
.field-hint { font-size: 0.8rem; color: var(--color-text-muted); }

.input-wrap { display: flex; gap: 0.5rem; }
.input-wrap input[type="text"] { flex: 1; padding: 0.7rem 0.9rem; border: 2px solid var(--color-border); border-radius: var(--radius-sm); font-size: 1rem; font-family: var(--font-sans); background: var(--color-bg); transition: border-color var(--transition); }
.input-wrap input[type="text"]:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(45,95,62,0.15); }

.btn-geo { padding: 0.7rem; border: 2px solid var(--color-border); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all var(--transition); }
.btn-geo:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-bg); }

.radius-control { display: flex; align-items: center; gap: 0.75rem; }
.radius-control input[type="range"] { width: 140px; accent-color: var(--color-primary); }
.radius-output { font-size: 1rem; font-weight: 700; color: var(--color-primary); min-width: 3.5rem; text-align: center; background: var(--color-surface-alt); padding: 0.4rem 0.75rem; border-radius: var(--radius-sm); }

.finder-actions { display: flex; gap: 0.75rem; margin-top: 1.25rem; flex-wrap: wrap; }

.btn-primary { background: var(--color-primary); color: #fff; border: none; padding: 0.75rem 1.5rem; border-radius: var(--radius-sm); font-size: 1rem; font-weight: 600; cursor: pointer; transition: background var(--transition); font-family: var(--font-sans); }
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-secondary { background: var(--color-surface-alt); color: var(--color-text); border: 1px solid var(--color-border); padding: 0.75rem 1.25rem; border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 500; cursor: pointer; transition: all var(--transition); font-family: var(--font-sans); display: inline-flex; align-items: center; gap: 0.4rem; }
.btn-secondary:hover { background: var(--color-border); }

.btn-small { padding: 0.4rem 0.75rem; font-size: 0.8rem; }
.btn-text { background: none; border: none; color: var(--color-primary); font-size: 0.85rem; font-weight: 500; cursor: pointer; font-family: var(--font-sans); text-decoration: underline; text-underline-offset: 2px; }
.btn-text:hover { color: var(--color-primary-dark); }

.finder-status { margin-top: 0.75rem; font-size: 0.9rem; color: var(--color-text-secondary); min-height: 1.4em; }
.finder-status.success { color: var(--color-success); }
.finder-status.error { color: var(--color-error); }

/* Categories */
.categories { padding: 2.5rem 0; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; flex-wrap: wrap; gap: 0.5rem; }
.section-header h2 { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; }

.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }

.category-card { background: var(--color-surface); border-radius: var(--radius-md); border: 1px solid var(--color-border); overflow: hidden; transition: box-shadow var(--transition); }
.category-card:hover { box-shadow: var(--shadow-sm); }

.category-header { width: 100%; display: flex; align-items: center; gap: 0.6rem; padding: 1rem 1.1rem; background: none; border: none; cursor: pointer; font-family: var(--font-sans); text-align: left; transition: background var(--transition); }
.category-header:hover { background: var(--color-surface-alt); }
.category-header[aria-expanded="true"] { background: var(--color-surface-alt); }

.category-icon { font-size: 1.3rem; flex-shrink: 0; }
.category-title { flex: 1; font-size: 1rem; font-weight: 600; color: var(--color-text); }
.category-chevron { font-size: 0.9rem; color: var(--color-text-muted); transition: transform var(--transition); }
.category-header[aria-expanded="true"] .category-chevron { transform: rotate(90deg); }

.category-body { padding: 0 1.1rem 1.1rem; border-top: 1px solid var(--color-border); }
.category-body p { font-size: 0.9rem; color: var(--color-text-secondary); margin-bottom: 0.75rem; line-height: 1.55; }

.category-meta { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 0.75rem; }
.meta-tag { font-size: 0.8rem; color: var(--color-text-muted); padding-left: 1rem; position: relative; }
.meta-tag::before { content: "•"; position: absolute; left: 0; color: var(--color-accent); }
.meta-tag.accessibility { color: var(--color-primary); }
.meta-tag.accessibility::before { content: "✓"; }

.btn-add { background: none; border: 1px dashed var(--color-primary); color: var(--color-primary); padding: 0.4rem 0.75rem; border-radius: var(--radius-sm); font-size: 0.8rem; font-weight: 500; cursor: pointer; font-family: var(--font-sans); transition: all var(--transition); }
.btn-add:hover { background: var(--color-primary); color: #fff; border-style: solid; }
.btn-add.added { background: var(--color-success); color: #fff; border-style: solid; border-color: var(--color-success); }

/* Adventure List */
.adventure-list { padding: 2.5rem 0; background: var(--color-surface); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.list-actions { display: flex; gap: 0.5rem; align-items: center; }

.adventure-list-items { margin-bottom: 1.5rem; }

.adventure-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.65rem 0; border-bottom: 1px solid var(--color-border); }
.adventure-item:last-child { border-bottom: none; }

.adventure-check { width: 20px; height: 20px; accent-color: var(--color-primary); cursor: pointer; flex-shrink: 0; }
.adventure-label { flex: 1; font-size: 0.95rem; cursor: pointer; }
.adventure-label.checked { text-decoration: line-through; color: var(--color-text-muted); }

.adventure-remove { background: none; border: none; color: var(--color-text-muted); cursor: pointer; font-size: 1.1rem; padding: 0.2rem; line-height: 1; transition: color var(--transition); }
.adventure-remove:hover { color: var(--color-error); }

.empty-state { color: var(--color-text-muted); font-size: 0.9rem; font-style: italic; padding: 0.5rem 0; }

.quick-add { margin-top: 1rem; }
.quick-add-title { font-size: 0.85rem; font-weight: 600; color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.5rem; }
.quick-add-buttons { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.btn-chip { background: var(--color-bg); border: 1px solid var(--color-border); color: var(--color-text-secondary); padding: 0.4rem 0.85rem; border-radius: 20px; font-size: 0.8rem; cursor: pointer; font-family: var(--font-sans); transition: all var(--transition); }
.btn-chip:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* Guide */
.guide { padding: 3rem 0; }
.guide h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 1.5rem; letter-spacing: -0.02em; }
.guide-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1.5rem; }
.guide-block h3 { font-size: 1rem; font-weight: 700; color: var(--color-primary); margin-bottom: 0.5rem; }
.guide-block p, .guide-block li { font-size: 0.9rem; color: var(--color-text-secondary); line-height: 1.6; }
.guide-block ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.guide-block li { padding-left: 1rem; position: relative; }
.guide-block li::before { content: "→"; position: absolute; left: 0; color: var(--color-accent); font-size: 0.8rem; }

/* Bingo */
.bingo-section { padding: 2.5rem 0; background: var(--color-surface); border-top: 1px solid var(--color-border); }
.bingo-section h2 { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.5rem; }
.bingo-intro { font-size: 0.9rem; color: var(--color-text-secondary); margin-bottom: 1.25rem; }

.bingo-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.5rem; max-width: 500px; margin: 0 auto 1.25rem; }

.bingo-cell { aspect-ratio: 1; background: var(--color-bg); border: 2px solid var(--color-border); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; text-align: center; font-size: 0.65rem; font-weight: 500; padding: 0.3rem; cursor: pointer; transition: all var(--transition); font-family: var(--font-sans); line-height: 1.2; }
.bingo-cell:hover { border-color: var(--color-primary); }
.bingo-cell.marked { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.bingo-cell.free { background: var(--color-accent-light); border-color: var(--color-accent); font-weight: 700; }

/* Footer */
.site-footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.8); padding: 2rem 0 1.5rem; margin-top: auto; }
.footer-top { display: flex; justify-content: space-between; align-items: start; flex-wrap: wrap; gap: 1.5rem; margin-bottom: 1.5rem; }
.footer-brand .logo-text { color: #fff; font-size: 1.1rem; }
.footer-brand p { font-size: 0.85rem; opacity: 0.7; margin-top: 0.25rem; }
.footer-links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer-links a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 0.85rem; transition: color var(--transition); }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); padding-top: 1rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom p { font-size: 0.8rem; opacity: 0.6; }

/* Responsive */
@media (max-width: 768px) {
  .finder-row { grid-template-columns: 1fr; }
  .radius-control input[type="range"] { width: 100%; }
  .category-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr 1fr; }
  .bingo-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-top { flex-direction: column; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero { padding: 2.5rem 0 2rem; }
  .hero h1 { font-size: 1.5rem; }
  .finder-card { padding: 1.25rem; }
  .finder-actions { flex-direction: column; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .guide-grid { grid-template-columns: 1fr; }
  .bingo-grid { grid-template-columns: repeat(3, 1fr); }
  .bingo-cell { font-size: 0.55rem; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .list-actions { width: 100%; justify-content: flex-start; }
}

/* Print */
@media print {
  .site-header, .site-footer, .finder, .adventure-list, .guide, .bingo-section:not([hidden]) ~ * { display: none; }
  .bingo-section { display: block !important; }
  .bingo-cell { border: 2px solid #333; }
  body { background: #fff; }
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}


/* 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;
}