:root {
  --bg: #fff7ed;
  --card: #ffffff;
  --text: #1c1917;
  --muted: #78716c;
  --border: #e7e5e4;
  --primary: #ea580c;
  --primary-soft: #fed7aa;
  --primary-text: #ffffff;
  --danger: #dc2626;
  --success: #16a34a;
  --info: #0891b2;
  --shadow: 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --card: #1e293b;
    --text: #f8fafc;
    --muted: #94a3b8;
    --border: #334155;
    --primary: #f97316;
    --primary-soft: #7c2d12;
    --primary-text: #ffffff;
    --danger: #ef4444;
    --success: #22c55e;
    --info: #06b6d4;
    --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 4px 12px rgba(0,0,0,0.3);
  }
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: contain;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

#app { max-width: 640px; margin: 0 auto; padding: 16px; }

.header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 4px 12px;
}

.header h1 {
  flex: 1;
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 22px;
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
}

.icon-btn:active { background: var(--border); }

/* ═══════ 首頁 hero ═══════ */

.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #f59e0b 100%);
  color: var(--primary-text);
  border-radius: 20px;
  padding: 24px 22px;
  margin-bottom: 20px;
  box-shadow: 0 10px 30px rgba(234, 88, 12, 0.25);
}

.hero-title {
  font-size: 24px;
  font-weight: 800;
  margin: 0 0 6px;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.hero-sub {
  font-size: 14px;
  opacity: 0.95;
  margin: 0 0 14px;
  font-weight: 500;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 13px;
  opacity: 0.95;
}

.hero-meta span { display: inline-flex; align-items: center; gap: 4px; }

/* ═══════ 主要按鈕（五顆） ═══════ */

.menu-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.menu-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px 22px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.08s, box-shadow 0.2s;
  text-align: left;
  color: var(--text);
  font-family: inherit;
  width: 100%;
}

.menu-btn:active {
  transform: scale(0.98);
}

.menu-icon {
  width: 52px;
  height: 52px;
  min-width: 52px;
  border-radius: 14px;
  background: var(--primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}

.menu-btn.info .menu-icon { background: color-mix(in srgb, var(--info) 20%, var(--card)); }
.menu-btn.register .menu-icon { background: color-mix(in srgb, var(--primary) 20%, var(--card)); }
.menu-btn.checkin .menu-icon { background: color-mix(in srgb, var(--success) 20%, var(--card)); }
.menu-btn.welfare .menu-icon { background: color-mix(in srgb, #a855f7 20%, var(--card)); }
.menu-btn.survey .menu-icon { background: color-mix(in srgb, #eab308 25%, var(--card)); }

.menu-text { flex: 1; min-width: 0; }
.menu-title { font-size: 17px; font-weight: 700; margin: 0 0 3px; }
.menu-sub { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.4; }
.menu-arrow { color: var(--muted); font-size: 20px; }

.footer-note {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  margin-top: 20px;
  padding-bottom: 20px;
}

/* ═══════ 子頁面 ═══════ */

.section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 20px 4px 8px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
  margin-bottom: 10px;
}

.info-row {
  display: flex;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

.info-row:last-child { border-bottom: none; }
.info-row .k { color: var(--muted); min-width: 72px; font-size: 14px; }
.info-row .v { flex: 1; color: var(--text); }

.agenda-item {
  display: flex;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}
.agenda-item:last-child { border-bottom: none; }
.agenda-item .t {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--primary);
  min-width: 56px;
}

.note-list { margin: 8px 0; padding-left: 22px; }
.note-list li { padding: 4px 0; font-size: 15px; line-height: 1.5; }

/* ═══════ Form ═══════ */

.form { display: flex; flex-direction: column; gap: 14px; margin-bottom: 20px; }

.field-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.field-label .req { color: var(--danger); margin-left: 4px; }

.field-input, .field-textarea, .field-select {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 16px;
  color: var(--text);
  font-family: inherit;
}

.field-textarea { min-height: 90px; resize: vertical; }

.field-input:focus, .field-textarea:focus, .field-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}

.field-help { font-size: 13px; color: var(--muted); margin-top: 6px; line-height: 1.5; }

.radio-group { display: flex; gap: 8px; flex-wrap: wrap; }
.radio-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.radio-chip input { position: absolute; opacity: 0; pointer-events: none; }
.radio-chip:has(input:checked) {
  background: var(--primary);
  color: var(--primary-text);
  border-color: var(--primary);
}

.primary-btn {
  background: var(--primary);
  color: var(--primary-text);
  border: none;
  border-radius: 16px;
  padding: 16px;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  box-shadow: 0 4px 16px rgba(234, 88, 12, 0.3);
  font-family: inherit;
}

.primary-btn:active { transform: scale(0.98); }
.primary-btn:disabled { opacity: 0.5; box-shadow: none; }

.secondary-btn {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  font-family: inherit;
}

/* ═══════ 結果 / 提示 ═══════ */

.result-card {
  background: linear-gradient(135deg, var(--success) 0%, #10b981 100%);
  color: white;
  border-radius: 20px;
  padding: 28px 24px;
  text-align: center;
  margin: 20px 0;
  box-shadow: 0 10px 30px rgba(22, 163, 74, 0.25);
}

.result-icon { font-size: 60px; line-height: 1; margin-bottom: 10px; }
.result-title { font-size: 24px; font-weight: 800; margin: 0 0 6px; }
.result-body { font-size: 15px; opacity: 0.95; margin: 0; line-height: 1.6; }

.reg-id {
  display: inline-block;
  background: rgba(255,255,255,0.25);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 18px;
  margin-top: 12px;
  letter-spacing: 0.05em;
  font-variant-numeric: tabular-nums;
}

/* ═══════ 福利資源查詢 ═══════ */

.search-bar {
  position: relative;
  margin-bottom: 12px;
}

.search-bar input {
  width: 100%;
  padding: 14px 16px 14px 44px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 15px;
  color: var(--text);
  font-family: inherit;
}

.search-bar::before {
  content: "🔍";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
}

.chip-row {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 0 8px;
  margin-bottom: 8px;
  scrollbar-width: none;
}
.chip-row::-webkit-scrollbar { display: none; }

.chip {
  flex-shrink: 0;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  font-size: 13px;
  cursor: pointer;
  color: var(--text);
  font-family: inherit;
  white-space: nowrap;
}

.chip.active {
  background: var(--primary);
  color: var(--primary-text);
  border-color: var(--primary);
}

.welfare-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
  margin-bottom: 10px;
}

.welfare-cat {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.welfare-name { font-size: 17px; font-weight: 700; margin: 0 0 6px; }
.welfare-line { font-size: 14px; color: var(--muted); margin: 2px 0; line-height: 1.5; }
.welfare-line b { color: var(--text); font-weight: 600; }

.welfare-phone {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 8px 14px;
  background: var(--info);
  color: white;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

/* ═══════ 評分 stars ═══════ */

.rating-row {
  display: flex;
  gap: 6px;
  margin-top: 4px;
}

.star {
  font-size: 32px;
  cursor: pointer;
  color: var(--border);
  transition: color 0.1s;
  user-select: none;
}

.star.on { color: #eab308; }

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
}
.empty-state h3 { margin: 0 0 6px; color: var(--text); font-weight: 600; }
.empty-state p { margin: 0; font-size: 14px; }

.reg-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}
.reg-item:last-child { border-bottom: none; }
.reg-item .n { font-weight: 600; }
.reg-item .p { color: var(--muted); font-size: 13px; }
.reg-item .badge {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 700;
}
.badge.checked { background: color-mix(in srgb, var(--success) 20%, transparent); color: var(--success); }
.badge.pending { background: var(--border); color: var(--muted); }