.surflab-portal { max-width: 920px; margin: 28px auto; padding: 24px; border: 1px solid #dce5e7; border-radius: 16px; background: #fff; color: #18383d; }
.surflab-portal select { padding: 10px; margin: 8px 0 16px; max-width: 100%; width: 100%; }
.surflab-portal h3 { margin-top: 30px; font-size: 20px; }
.surflab-guide, .surflab-selection-summary { background: #eef7f7; padding: 16px; border-radius: 10px; }
.surflab-portal textarea { display: block; box-sizing: border-box; width: 100%; padding: 12px; border: 1px solid #ccdfe0; border-radius: 8px; font: inherit; }
.surflab-date-options label:has(input:checked) { background: #d9efed; border-color: #086875; font-weight: 700; }
.surflab-date-options label:has(input:disabled) { opacity: .45; cursor: not-allowed; }
.surflab-request-comment { padding: 12px; background: #f5f7f7; border-radius: 8px; white-space: normal; overflow-wrap: anywhere; }
.surflab-week-scroll { overflow-x: auto; margin: 20px 0; }
.surflab-date-options { display: grid; grid-template-columns: repeat(7,minmax(0,1fr)); gap: 6px; min-width: 322px; }
.surflab-date-options label { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; min-height: 72px; box-sizing: border-box; padding: 8px 2px; border: 1px solid #ccdfe0; border-radius: 8px; cursor: pointer; font-size: 15px; }
.surflab-date-options input { margin: 0; }
.surflab-date-options label:focus-within { outline: 2px solid #086875; outline-offset: 1px; }
.surflab-date-options small { font-size: 11px; color: #086875; }
.surflab-weekday { text-align: center; padding: 10px 0; font-weight: 700; background: #edf5f5; border-radius: 6px; }
.surflab-weekday:nth-child(6), .surflab-weekday:nth-child(7), .surflab-date-weekend { color: #8a4329; }
.surflab-date-empty { background: #f7f9f9; border-radius: 8px; }
.surflab-calendar-range { font-weight: 600; }
.surflab-month-nav { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin: 20px 0; }
.surflab-month-nav a { padding: 8px 12px; border: 1px solid #ccdfe0; border-radius: 8px; }
.surflab-portal button { padding: 12px 22px; background: #086875; color: #fff; border: 0; border-radius: 8px; cursor: pointer; }
.surflab-portal li { padding: 8px 0; }
@media(max-width:600px) { .surflab-portal { padding: 12px; } .surflab-date-options { gap: 3px; } }