/* Friend Group Gift Rotation — Styles */
:root {
  --c-primary: #E85D4A;
  --c-primary-dark: #C4483A;
  --c-primary-light: #F4A261;
  --c-bg: #FFF8F5;
  --c-surface: #FFFFFF;
  --c-surface-alt: #FDF2EE;
  --c-text: #2D2A26;
  --c-text-secondary: #6B6560;
  --c-text-muted: #9E9893;
  --c-border: #E8DDD6;
  --c-border-light: #F0E8E2;
  --c-success: #2D9D78;
  --c-warning: #E8A838;
  --c-focus: #4A90D9;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1), 0 4px 8px rgba(0,0,0,0.05);
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --transition: 0.2s ease;
  --max-width: 1200px;
}

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

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

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

a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

.skip-link {
  position: absolute; top: -100%; left: 16px; z-index: 100;
  background: var(--c-primary); color: #fff; padding: 8px 16px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm); font-weight: 600;
}
.skip-link:focus { top: 0; }

/* Header */
.site-header {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border-light);
  position: sticky; top: 0; z-index: 50;
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px; gap: 16px;
}
.logo {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 1.1rem; color: var(--c-text);
  text-decoration: none; flex-shrink: 0;
}
.logo:hover { text-decoration: none; }
.logo-icon { flex-shrink: 0; }

.main-nav ul { display: flex; list-style: none; gap: 4px; }
.main-nav a {
  display: block; padding: 6px 12px; border-radius: var(--radius-sm);
  color: var(--c-text-secondary); font-size: 0.9rem; font-weight: 500;
  text-decoration: none; transition: all var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  color: var(--c-primary); background: var(--c-surface-alt);
  text-decoration: none;
}

.nav-toggle {
  display: none; flex-direction: column; gap: 4px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--c-text); border-radius: 2px; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
  color: #fff; padding: 48px 0 40px;
}
.hero h1 { font-size: 2rem; font-weight: 800; line-height: 1.2; margin-bottom: 12px; }
.hero-sub { font-size: 1.1rem; opacity: 0.92; max-width: 560px; margin-bottom: 28px; }
.hero-stats { display: flex; gap: 32px; }
.stat { text-align: center; }
.stat-number { display: block; font-size: 1.8rem; font-weight: 800; line-height: 1; }
.stat-label { font-size: 0.8rem; opacity: 0.85; text-transform: uppercase; letter-spacing: 0.5px; }

/* Cards */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border-light);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; flex-wrap: wrap; gap: 8px;
}
.card-header h2 { font-size: 1.15rem; font-weight: 700; }
.card-desc { color: var(--c-text-secondary); font-size: 0.9rem; margin-bottom: 16px; }
.card-actions { display: flex; align-items: center; gap: 8px; }

/* Planner Layout */
.planner-section { padding: 32px 0 48px; }
.planner-layout {
  display: grid; grid-template-columns: 1fr 340px; gap: 24px; align-items: start;
}
.planner-main { display: flex; flex-direction: column; gap: 24px; }
.planner-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 80px; }

/* Forms */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--c-text-secondary); }
.optional { font-weight: 400; color: var(--c-text-muted); font-size: 0.8rem; }
input, select {
  padding: 10px 12px; border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); font-size: 0.95rem;
  font-family: var(--font-sans); color: var(--c-text);
  background: var(--c-surface); transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, select:focus {
  outline: none; border-color: var(--c-focus);
  box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
}
.form-actions { display: flex; gap: 8px; margin-top: 8px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 18px; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; font-family: var(--font-sans);
  cursor: pointer; border: 1px solid transparent;
  transition: all var(--transition); text-decoration: none; line-height: 1.2;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); }
.btn-outline { background: var(--c-surface); color: var(--c-primary); border-color: var(--c-primary); }
.btn-outline:hover { background: var(--c-surface-alt); }
.btn-ghost { background: transparent; color: var(--c-text-secondary); }
.btn-ghost:hover { background: var(--c-surface-alt); color: var(--c-text); }
.btn-sm { padding: 6px 12px; font-size: 0.82rem; }
.btn-danger { background: transparent; color: var(--c-primary); }
.btn-danger:hover { background: #FFF0ED; }

/* Member List */
.member-list { display: flex; flex-direction: column; gap: 8px; }
.member-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; background: var(--c-surface-alt);
  border-radius: var(--radius-md); border: 1px solid var(--c-border-light);
}
.member-info { display: flex; align-items: center; gap: 12px; }
.member-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--c-primary-light); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem; flex-shrink: 0;
}
.member-name { font-weight: 600; font-size: 0.95rem; }
.member-bday { font-size: 0.8rem; color: var(--c-text-muted); }
.member-actions { display: flex; gap: 4px; }

/* Gift History */
.gift-history { display: flex; flex-direction: column; gap: 8px; max-height: 400px; overflow-y: auto; }
.gift-item {
  padding: 14px 16px; background: var(--c-surface-alt);
  border-radius: var(--radius-md); border: 1px solid var(--c-border-light);
}
.gift-main { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.gift-what { font-weight: 600; font-size: 0.95rem; }
.gift-flow { font-size: 0.85rem; color: var(--c-text-secondary); margin-top: 2px; }
.gift-meta { display: flex; gap: 12px; margin-top: 6px; font-size: 0.8rem; color: var(--c-text-muted); }
.gift-occasion {
  display: inline-block; padding: 2px 8px; border-radius: 12px;
  background: var(--c-primary-light); color: #fff; font-size: 0.75rem; font-weight: 600;
}
.gift-notes { font-size: 0.82rem; color: var(--c-text-secondary); margin-top: 6px; font-style: italic; }
.gift-delete { opacity: 0; transition: opacity var(--transition); }
.gift-item:hover .gift-delete { opacity: 1; }

/* Rotation */
.rotation-list { display: flex; flex-direction: column; gap: 8px; }
.rotation-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px; border-radius: var(--radius-md);
  background: var(--c-surface-alt); border: 1px solid var(--c-border-light);
}
.rotation-rank {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--c-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.8rem; flex-shrink: 0;
}
.rotation-rank.rank-1 { background: var(--c-primary); }
.rotation-rank.rank-2 { background: var(--c-primary-light); }
.rotation-rank.rank-3 { background: var(--c-warning); }
.rotation-rank.rank-rest { background: var(--c-text-muted); }
.rotation-name { font-weight: 600; font-size: 0.9rem; }
.rotation-since { font-size: 0.78rem; color: var(--c-text-muted); }
.rotation-urgency {
  margin-left: auto; font-size: 0.75rem; font-weight: 600;
  padding: 2px 8px; border-radius: 12px;
}
.urgency-overdue { background: #FFF0ED; color: var(--c-primary); }
.urgency-soon { background: #FFF8E1; color: #B8860B; }
.urgency-ok { background: #E8F5E9; color: var(--c-success); }

/* Budget */
.budget-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.budget-item { text-align: center; padding: 12px 8px; background: var(--c-surface-alt); border-radius: var(--radius-sm); }
.budget-label { display: block; font-size: 0.75rem; color: var(--c-text-muted); text-transform: uppercase; letter-spacing: 0.3px; }
.budget-value { display: block; font-size: 1.2rem; font-weight: 700; color: var(--c-text); margin-top: 4px; }
.budget-note { font-size: 0.8rem; color: var(--c-text-muted); line-height: 1.4; }

/* Export */
.export-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.save-status { font-size: 0.82rem; color: var(--c-success); min-height: 1.2em; }

/* Filter */
.filter-label { font-size: 0.82rem; color: var(--c-text-secondary); font-weight: 500; }
.filter-select { padding: 4px 8px; font-size: 0.82rem; }

/* Empty State */
.empty-state {
  text-align: center; padding: 32px 16px;
  color: var(--c-text-muted); font-size: 0.9rem;
}
.empty-state svg { margin-bottom: 12px; }

/* Add Member Form */
.add-member-form { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--c-border-light); }

/* Guide Section */
.guide-section { padding: 48px 0 56px; background: var(--c-surface); border-top: 1px solid var(--c-border-light); }
.guide-section h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 24px; text-align: center; }
.guide-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 40px; }
.guide-block {
  padding: 20px; background: var(--c-bg);
  border-radius: var(--radius-md); border: 1px solid var(--c-border-light);
}
.guide-block h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.guide-block p { font-size: 0.9rem; color: var(--c-text-secondary); line-height: 1.55; }

.guide-scenarios { margin-bottom: 40px; }
.guide-scenarios h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 16px; }
.scenario-list { display: flex; flex-direction: column; gap: 0; }
.scenario-list details {
  border: 1px solid var(--c-border-light); border-radius: var(--radius-sm);
  margin-bottom: 8px; overflow: hidden;
}
.scenario-list summary {
  padding: 14px 18px; font-weight: 600; font-size: 0.9rem;
  cursor: pointer; background: var(--c-bg);
  transition: background var(--transition);
}
.scenario-list summary:hover { background: var(--c-surface-alt); }
.scenario-list details[open] summary { border-bottom: 1px solid var(--c-border-light); }
.scenario-list details p { padding: 14px 18px; font-size: 0.88rem; color: var(--c-text-secondary); line-height: 1.55; }

.guide-faq h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 16px; }
.guide-faq dl { display: flex; flex-direction: column; gap: 16px; }
.guide-faq dt { font-weight: 600; font-size: 0.95rem; }
.guide-faq dd { font-size: 0.88rem; color: var(--c-text-secondary); line-height: 1.55; padding-left: 16px; border-left: 3px solid var(--c-border); }

/* Footer */
.site-footer {
  margin-top: auto; padding: 32px 0;
  background: var(--c-surface); border-top: 1px solid var(--c-border-light);
}
.footer-inner { text-align: center; }
.footer-brand { font-weight: 700; font-size: 0.95rem; margin-bottom: 8px; }
.footer-links { font-size: 0.85rem; margin-bottom: 8px; }
.footer-links a { color: var(--c-text-secondary); }
.footer-ecosystem { font-size: 0.82rem; color: var(--c-text-muted); margin-bottom: 4px; }
.footer-ecosystem a { color: var(--c-text-muted); text-decoration: underline; }
.footer-updated { font-size: 0.78rem; color: var(--c-text-muted); }

/* Utilities */
.hidden { display: none !important; }

/* Responsive */
@media (max-width: 900px) {
  .planner-layout { grid-template-columns: 1fr; }
  .planner-sidebar { position: static; }
  .guide-grid { grid-template-columns: 1fr; }
  .budget-grid { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .hero { padding: 32px 0 28px; }
  .hero h1 { font-size: 1.5rem; }
  .hero-sub { font-size: 0.95rem; }
  .hero-stats { gap: 20px; }
  .stat-number { font-size: 1.4rem; }
  .main-nav { display: none; }
  .main-nav.open { display: block; position: absolute; top: 60px; left: 0; right: 0; background: var(--c-surface); border-bottom: 1px solid var(--c-border-light); box-shadow: var(--shadow-md); }
  .main-nav.open ul { flex-direction: column; padding: 8px 16px 16px; }
  .nav-toggle { display: flex; }
  .form-row { grid-template-columns: 1fr; gap: 12px; }
  .budget-grid { grid-template-columns: 1fr; }
  .card { padding: 18px; }
  .card-header { flex-direction: column; align-items: flex-start; }
  .gift-delete { opacity: 1; }
}

@media print {
  .site-header, .site-footer, .card-export, .gift-form, .add-member-form, .btn, .nav-toggle { display: none !important; }
  .planner-layout { display: block; }
  .card { break-inside: avoid; box-shadow: none; border: 1px solid #ccc; }
  body { background: #fff; }
}



/* 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;
}