* { box-sizing: border-box; }
body { font-family: system-ui, sans-serif; margin: 0; color: #1a1a1a; background: #f5f5f7; }
header { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; background: #fff; border-bottom: 1px solid #e0e0e0; }
h1 { font-size: 18px; margin: 0; }
main { max-width: 880px; margin: 24px auto; padding: 0 16px; }
button { cursor: pointer; padding: 8px 14px; border: none; border-radius: 6px; background: #2563eb; color: #fff; font-size: 14px; }
button.secondary { background: #e5e7eb; color: #111; }
button.danger { background: #dc2626; }
input, select, textarea { width: 100%; padding: 8px; margin: 4px 0 12px; border: 1px solid #ccc; border-radius: 6px; font-size: 14px; }
label { font-size: 13px; font-weight: 600; }
.card { background: #fff; border: 1px solid #e0e0e0; border-radius: 8px; padding: 14px; margin-bottom: 10px; display: flex; gap: 12px; align-items: center; }
.card img { width: 80px; height: 50px; object-fit: cover; border-radius: 4px; }
.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tabs button.active { background: #1e40af; }
.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: flex; align-items: center; justify-content: center; }
.modal { background: #fff; padding: 24px; border-radius: 10px; width: 440px; max-height: 90vh; overflow: auto; }
.row { display: flex; gap: 8px; align-items: center; }
.error { color: #dc2626; font-size: 13px; }
.muted { color: #6b7280; font-size: 13px; }