* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, sans-serif; background: #f5f7fa; color: #333; }
.container { max-width: 800px; margin: 0 auto; padding: 24px 16px; }
h1 { font-size: 2rem; margin-bottom: 8px; }
.subtitle { color: #666; margin-bottom: 24px; }
.error { background: #fee; border: 1px solid #fcc; padding: 12px; border-radius: 8px; margin-bottom: 16px; color: #c33; }

.form-card { background: white; border-radius: 12px; padding: 24px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
.form-group input { width: 100%; padding: 10px 12px; border: 1px solid #ddd; border-radius: 8px; font-size: 1rem; }
.form-group select { width: 100%; padding: 10px 12px; border: 1px solid #ddd; border-radius: 8px; font-size: 1rem; background: white; appearance: auto; }
.form-group select:disabled { background: #f5f5f5; color: #aaa; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.btn-primary { width: 100%; padding: 14px; background: #4f46e5; color: white; border: none; border-radius: 8px; font-size: 1rem; font-weight: 600; cursor: pointer; margin-top: 8px; }
.btn-primary:hover { background: #4338ca; }
.btn-secondary { display: inline-block; margin-top: 24px; padding: 10px 20px; background: white; border: 1px solid #ddd; border-radius: 8px; text-decoration: none; color: #333; }

.trip-header { background: white; border-radius: 12px; padding: 24px; margin-bottom: 24px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.trip-header h1 { font-size: 1.8rem; }
.trip-header p { color: #666; margin: 8px 0; }
.budget-info { display: flex; gap: 16px; margin-top: 12px; flex-wrap: wrap; }
.budget-info span { background: #f0f0f0; padding: 6px 12px; border-radius: 6px; font-size: 0.9rem; }
.budget-total span { background: #e8e8e8; color: #666; font-size: 0.82rem; }
.share-box { margin-top: 12px; font-size: 0.9rem; color: #666; }
.share-box a { color: #4f46e5; }

.day-section { margin-bottom: 24px; }
.day-section h2 { font-size: 1.1rem; color: #4f46e5; padding-left: 4px; }
.day-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.items-list { display: flex; flex-direction: column; gap: 10px; }

.item-card { background: white; border-radius: 10px; padding: 16px; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.item-info { flex: 1; }
.item-top { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.item-name { font-weight: 600; }
.item-desc { font-size: 0.85rem; color: #666; }
.badge { font-size: 0.75rem; padding: 3px 8px; border-radius: 4px; font-weight: 600; }
.badge.free { background: #dcfce7; color: #166534; }
.badge.paid { background: #fef3c7; color: #92400e; }
.item-actions { display: flex; gap: 8px; margin-left: 16px; }
.confirm-banner { padding: 12px 16px; border-radius: 8px; margin: 12px 0; font-weight: 600; }
.confirm-banner.preview { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.confirm-banner.confirmed { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.btn-confirm { width: 100%; padding: 12px; background: #4f46e5; color: white; border: none; border-radius: 8px; font-size: 1rem; font-weight: 700; cursor: pointer; margin-bottom: 12px; }
.btn-confirm:hover { background: #4338ca; }
.btn-ref { padding: 8px 14px; background: #10b981; color: white; border-radius: 6px; text-decoration: none; font-size: 0.85rem; font-weight: 600; }
.btn-book { padding: 8px 14px; background: #4f46e5; color: white; border-radius: 6px; text-decoration: none; font-size: 0.85rem; font-weight: 600; }
.btn-swap { padding: 8px 14px; background: white; border: 1px solid #ddd; border-radius: 6px; cursor: pointer; font-size: 0.85rem; color: #555; }
.btn-swap:hover { background: #f5f5f5; }
.btn-regen { padding: 6px 14px; background: white; border: 1px solid #c7d2fe; border-radius: 6px; cursor: pointer; font-size: 0.82rem; color: #4f46e5; font-weight: 600; }
.btn-regen:hover { background: #eef2ff; }
.time-slot { font-size: 0.78rem; color: #7c3aed; background: #ede9fe; padding: 2px 8px; border-radius: 4px; font-weight: 600; white-space: nowrap; }
.transport-connector { text-align: center; font-size: 0.82rem; color: #999; padding: 6px 0; }
.label-hint { font-weight: 400; color: #999; font-size: 0.85rem; }
.loading-hint { margin-top: 10px; text-align: center; color: #666; font-size: 0.9rem; }