:root { color-scheme: light; --ink:#182026; --muted:#66737d; --line:#dce2e6; --paper:#fff; --soft:#f4f7f8; --accent:#0b5967; --accent-dark:#07434e; --danger:#9c2f2f; }
* { box-sizing:border-box; }
body { margin:0; color:var(--ink); background:var(--soft); font-family:system-ui,-apple-system,"Noto Sans TC","Microsoft JhengHei",sans-serif; line-height:1.6; }
.shell { width:min(1120px, calc(100% - 32px)); margin-inline:auto; }
.site-header { background:linear-gradient(135deg,#073e48,#0b6877); color:#fff; padding:52px 0 42px; }
.site-header.compact { padding:34px 0 30px; }
h1,h2,h3,p { margin-top:0; } h1 { font-size:clamp(2.1rem,6vw,4rem); line-height:1.05; margin-bottom:12px; letter-spacing:.04em; } h2 { margin-bottom:6px; }
.eyebrow { font-size:.82rem; text-transform:uppercase; letter-spacing:.16em; font-weight:800; opacity:.8; margin-bottom:8px; }.lead { font-size:1.08rem; opacity:.9; margin:0; }
.main { padding-block:32px 56px; }.query-card { background:var(--paper); border:1px solid var(--line); border-radius:18px; padding:22px; box-shadow:0 8px 30px rgba(14,40,48,.06); display:flex; gap:24px; align-items:end; justify-content:space-between; }.query-card.block { display:block; }.query-form { display:flex; align-items:end; gap:10px; flex-wrap:wrap; }.query-form label { font-weight:700; width:100%; font-size:.9rem; color:var(--muted); }
select,button { min-height:44px; border-radius:10px; border:1px solid var(--line); font:inherit; } select { min-width:170px; padding:0 38px 0 12px; background:#fff; } button { border-color:var(--accent); background:var(--accent); color:#fff; padding:0 18px; font-weight:750; cursor:pointer; } button:hover { background:var(--accent-dark); } button.secondary { color:var(--accent); background:#fff; } button:disabled { opacity:.5; cursor:not-allowed; }
.message { margin:18px 0; color:var(--muted); min-height:1.6em; }.message.error { color:var(--danger); }.message.success { color:#17673b; }.result-heading { margin:26px 0 12px; display:flex; align-items:end; justify-content:space-between; gap:16px; }.result-heading h2 { margin:0; }.result-heading .eyebrow { color:var(--muted); margin-bottom:4px; }.department-card { background:#fff; border:1px solid var(--line); border-radius:18px; overflow:hidden; margin-bottom:18px; }.department-title { display:flex; justify-content:space-between; align-items:center; padding:16px 18px; background:#edf4f5; }.department-title h3 { margin:0; }.department-title span { color:var(--muted); }.table-wrap { overflow:auto; } table { width:100%; border-collapse:collapse; } th,td { padding:13px 16px; border-top:1px solid var(--line); text-align:left; vertical-align:top; } th { font-size:.86rem; color:var(--muted); background:#fbfcfc; white-space:nowrap; }.site-footer { padding:24px 0 40px; color:var(--muted); font-size:.9rem; }.admin-grid { display:grid; gap:18px; }.section-row,.admin-year-row { display:flex; justify-content:space-between; align-items:center; gap:16px; }.admin-list { border-top:1px solid var(--line); margin-top:14px; }.admin-year-row { padding:12px 0; border-bottom:1px solid var(--line); }.admin-year-row div { display:flex; flex-direction:column; }.admin-year-row span { color:var(--muted); font-size:.9rem; }.muted-section { opacity:.78; }
@media (max-width:720px) { .site-header { padding:38px 0 32px; }.query-card { align-items:stretch; flex-direction:column; }.query-form { display:grid; grid-template-columns:1fr auto; }.query-form label { grid-column:1/-1; }.query-form select { min-width:0; width:100%; } .table-wrap { overflow:visible; } table,thead,tbody,tr,th,td { display:block; } thead { display:none; } tr { padding:10px 15px; border-top:1px solid var(--line); } td { border:0; padding:5px 0 5px 42%; position:relative; min-height:32px; } td::before { content:attr(data-label); position:absolute; left:0; width:38%; color:var(--muted); font-size:.88rem; font-weight:700; }.section-row,.admin-year-row { align-items:flex-start; }.admin-year-row { flex-direction:column; }.admin-year-row button { width:100%; } }

/* Stage 2: CSV import admin */
.import-form { display:grid; grid-template-columns:140px minmax(260px,1fr) auto auto; gap:14px; align-items:end; margin-top:18px; }
.import-form label { display:flex; flex-direction:column; gap:6px; color:var(--muted); font-size:.9rem; font-weight:700; }
.import-form input[type="number"], .import-form input[type="file"] { min-height:44px; border:1px solid var(--line); border-radius:10px; background:#fff; padding:9px 11px; font:inherit; color:var(--ink); }
.import-form .checkbox-label { flex-direction:row; align-items:center; align-self:center; color:var(--ink); font-weight:600; }
.help-box { margin-top:18px; border:1px solid var(--line); border-radius:12px; padding:10px 14px; background:#fbfcfc; }
.help-box summary { cursor:pointer; font-weight:750; color:var(--accent); }
.help-box p { margin:10px 0; }
.help-box pre { white-space:pre-wrap; overflow:auto; background:#eef3f4; border-radius:8px; padding:12px; }
.summary-grid { display:grid; grid-template-columns:repeat(4,minmax(120px,1fr)); gap:12px; margin:16px 0 22px; }
.summary-grid > div { border:1px solid var(--line); border-radius:12px; background:#fbfcfc; padding:14px; display:flex; flex-direction:column; }
.summary-grid strong { font-size:1.55rem; line-height:1.1; }
.summary-grid span { color:var(--muted); font-size:.86rem; margin-top:5px; }
.issue-list { display:grid; gap:8px; margin:10px 0 20px; }
.issue { border:1px solid var(--line); border-radius:10px; padding:10px 12px; display:flex; gap:12px; }
.issue strong { white-space:nowrap; }
.issue.error { border-color:#e5baba; background:#fff6f6; color:var(--danger); }
.issue.warning { border-color:#ead9a9; background:#fffaf0; color:#72530d; }
.import-actions { display:flex; justify-content:flex-end; margin-top:18px; }
#import-preview h3, #import-issues h3 { margin-top:18px; }
@media (max-width:900px) { .import-form { grid-template-columns:1fr 1fr; } .summary-grid { grid-template-columns:1fr 1fr; } }
@media (max-width:600px) { .import-form { grid-template-columns:1fr; } .summary-grid { grid-template-columns:1fr 1fr; } .import-actions button { width:100%; } }

/* Stage 3: school master, aliases, session and import history */
.admin-header-row { display:flex; align-items:flex-end; justify-content:space-between; gap:24px; }
.admin-session { display:flex; align-items:center; gap:12px; flex-wrap:wrap; font-size:.92rem; }
.button-link { min-height:44px; border-radius:10px; border:1px solid var(--accent); background:var(--accent); color:#fff; padding:8px 18px; font-weight:750; text-decoration:none; display:inline-flex; align-items:center; justify-content:center; }
.button-link.secondary { color:var(--accent); background:#fff; }
.school-toolbar { display:grid; grid-template-columns:minmax(220px,1fr) auto auto; gap:10px; margin:18px 0 10px; }
.school-toolbar input, .school-form input, .school-form select, .school-card input, .school-card select, .alias-add input { min-height:44px; border:1px solid var(--line); border-radius:10px; background:#fff; padding:8px 11px; font:inherit; color:var(--ink); }
.school-form-wrap { border:1px solid var(--line); border-radius:12px; background:#fbfcfc; padding:16px; margin:14px 0; }
.school-form { display:grid; grid-template-columns:minmax(260px,2fr) minmax(120px,1fr) 120px auto; gap:12px; align-items:end; }
.school-form label, .school-card-main label { display:flex; flex-direction:column; gap:5px; font-size:.86rem; color:var(--muted); font-weight:700; }
.school-list { display:grid; gap:12px; margin-top:12px; }
.school-card { border:1px solid var(--line); border-radius:14px; padding:14px; background:#fff; }
.school-card-main { display:grid; grid-template-columns:minmax(260px,2fr) 120px 100px auto auto; gap:10px; align-items:end; }
.inline-active { flex-direction:row !important; align-items:center; min-height:44px; color:var(--ink) !important; }
.school-meta { color:var(--muted); font-size:.82rem; margin-top:8px; }
.alias-row { display:flex; align-items:flex-start; gap:12px; margin-top:12px; padding-top:10px; border-top:1px solid var(--line); }
.alias-list { display:flex; gap:7px; flex-wrap:wrap; }
.alias-chip { background:#edf4f5; border:1px solid #d2e2e5; border-radius:999px; padding:4px 7px 4px 10px; display:inline-flex; align-items:center; gap:5px; }
.alias-delete { min-height:24px; width:24px; padding:0; border:0; border-radius:50%; background:transparent; color:var(--danger); font-size:1rem; }
.alias-delete:hover { background:#fff; }
.alias-add { display:grid; grid-template-columns:minmax(220px,1fr) auto; gap:8px; margin-top:10px; }
.muted-inline { color:var(--muted); font-size:.9rem; }
@media (max-width:900px) { .school-form, .school-card-main { grid-template-columns:1fr 1fr; } .admin-header-row { align-items:flex-start; } }
@media (max-width:600px) { .admin-header-row { flex-direction:column; align-items:stretch; } .school-toolbar, .school-form, .school-card-main, .alias-add { grid-template-columns:1fr; } .school-toolbar button, .school-card-main button, .alias-add button { width:100%; } .alias-row { flex-direction:column; } }

/* Stage 3.1: tabbed admin layout */
.admin-page { display:grid; gap:16px; }
.admin-status-card { padding:12px 18px; }
.admin-status-card .message { margin:0; min-height:auto; }
.admin-tabs { position:sticky; top:0; z-index:20; display:flex; gap:8px; overflow-x:auto; padding:10px; background:rgba(244,247,248,.96); border:1px solid var(--line); border-radius:14px; backdrop-filter:blur(10px); box-shadow:0 5px 20px rgba(14,40,48,.05); scrollbar-width:thin; }
.admin-tab { flex:0 0 auto; min-height:44px; display:inline-flex; align-items:center; justify-content:center; padding:8px 18px; border-radius:10px; color:var(--accent); font-weight:800; text-decoration:none; border:1px solid transparent; white-space:nowrap; }
.admin-tab:hover { background:#eaf2f3; }
.admin-tab.active { color:#fff; background:var(--accent); border-color:var(--accent); }
.admin-panels { min-width:0; }
.admin-panel { min-height:320px; }
.admin-panel[hidden] { display:none !important; }
.admin-panel-kicker { color:var(--accent); margin-bottom:4px; }
.sr-only { position:absolute !important; width:1px !important; height:1px !important; padding:0 !important; margin:-1px !important; overflow:hidden !important; clip:rect(0,0,0,0) !important; white-space:nowrap !important; border:0 !important; }

@media (max-width:720px) {
  .admin-page { gap:12px; }
  .admin-tabs { margin-inline:-4px; border-radius:12px; }
  .admin-tab { padding-inline:14px; }
  .admin-panel { padding:18px; }
}