:root {
  --paper: #FBFAF7; --card: #FFFFFF; --ink: #1D2A42; --muted: #6B7385;
  --line: #E4E2DA; --gold: #A87E2F; --gold-soft: #F4EBD9;
  --ok: #2E7D4F; --ok-bg: #E5F2E9;
  --none: #6B7385; --none-bg: #F1F0EC;
}
@media (prefers-color-scheme: dark) { :root {
  --paper: #151A24; --card: #1D2430; --ink: #E8E6DF; --muted: #97A0B3;
  --line: #303848; --gold: #D3A854; --gold-soft: #2C2717;
  --ok: #6FBF8E; --ok-bg: #1E3327;
  --none: #97A0B3; --none-bg: #232A36;
} }

body { background: var(--paper); color: var(--ink); margin: 0;
  font: 15px/1.5 -apple-system, "Segoe UI", system-ui, sans-serif; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 40px 24px 72px; }

.eyebrow { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--gold); font-weight: 650; }
h1 { font-family: Charter, Georgia, serif; font-size: 34px; line-height: 1.15; margin: 6px 0 4px; text-wrap: balance; }
.meta { color: var(--muted); margin: 0 0 24px; max-width: 72ch; }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 12px 16px; margin-bottom: 22px; }
.toolbar-label { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
select, input[type="search"] { font: inherit; color: var(--ink); background: var(--paper);
  border: 1px solid var(--line); border-radius: 6px; padding: 6px 10px; }
input[type="search"] { min-width: 180px; }
select:focus-visible, input:focus-visible { outline: 2px solid var(--gold); outline-offset: 1px; }
.toolbar-check { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); cursor: pointer; }
.toolbar-check input { accent-color: var(--gold); }
.btn { font: 600 14px/1 -apple-system, system-ui, sans-serif; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 6px;
  padding: 9px 16px; cursor: pointer; }
.btn:hover:not(:disabled) { border-color: var(--gold); }
.btn:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.btn:disabled { opacity: .45; cursor: default; }
.spacer { flex: 1 1 auto; }
.toolbar-status { color: var(--muted); font-size: 13px; }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(128px, 1fr)); gap: 12px; margin-bottom: 26px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
.tile .v { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; line-height: 1.1; }
.tile .l { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.tile.empty-role { opacity: .55; }
.tile.empty-role .v { color: var(--muted); }

.note { background: var(--gold-soft); border-left: 3px solid var(--gold); border-radius: 0 6px 6px 0;
  padding: 10px 14px; font-size: 14px; margin-bottom: 24px; max-width: 82ch; }
.note b { color: var(--ink); }

.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--card); }
table { border-collapse: collapse; width: 100%; min-width: 900px; }
th, td { text-align: left; padding: 9px 14px; border-top: 1px solid var(--line); vertical-align: top; }
thead th { border-top: none; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted);
  position: sticky; top: 0; background: var(--card); z-index: 1; }
thead th[data-sort] { cursor: pointer; user-select: none; white-space: nowrap; }
thead th[data-sort]:hover { color: var(--ink); }
thead th.sorted { color: var(--ink); }
thead th[data-sort]:focus-visible { outline: 2px solid var(--gold); outline-offset: -2px; }
th.role-h .role-sub { display: block; font-weight: 400; letter-spacing: 0; text-transform: none; font-size: 11px; color: var(--muted); margin-top: 1px; }
th.untracked { color: var(--muted); }
.caret { margin-left: 4px; font-size: 9px; color: var(--gold); vertical-align: middle; }

tbody tr:hover td { background: var(--gold-soft); }
.st .nm { display: block; font-weight: 600; }
.st .un { display: block; font: 12px ui-monospace, Menlo, monospace; color: var(--muted); }
.badge { display: inline-block; font-size: 10px; font-weight: 650; letter-spacing: .04em; text-transform: uppercase;
  color: var(--muted); background: var(--none-bg); border: 1px solid var(--line); border-radius: 4px; padding: 0 5px; margin-left: 6px; vertical-align: middle; }
.disamb { color: var(--muted); font-size: 12px; }

.chips { display: flex; flex-wrap: wrap; gap: 4px; }
/* Per-subject accent colours mirrored from the Library app (Subject.defaultAccentColor):
   Maths 2U/3U/4U = gold→orange→red, Chemistry blue, Physics green, Biology pink,
   Economics purple, English Adv brown. --rgb is the accent; the tint is derived from it. */
.chip { display: inline-block; font-size: 11.5px; font-weight: 650; padding: 2px 9px; border-radius: 999px;
  white-space: nowrap; color: rgb(var(--rgb, 102,115,140)); background: rgba(var(--rgb, 102,115,140), .16); }
.chip.c-mat2  { --rgb: 179,148,0; }
.chip.c-mat3  { --rgb: 217,115,20; }
.chip.c-mat4  { --rgb: 204,51,51; }
.chip.c-chem  { --rgb: 51,115,204; }
.chip.c-phys  { --rgb: 46,148,77; }
.chip.c-bio   { --rgb: 209,77,140; }
.chip.c-eng   { --rgb: 140,89,46; }
.chip.c-econ  { --rgb: 128,64,191; }
.chip.c-other { --rgb: 102,115,140; }
@media (prefers-color-scheme: dark) {
  .chip.c-mat2  { --rgb: 242,217,64; }
  .chip.c-mat3  { --rgb: 255,153,56; }
  .chip.c-mat4  { --rgb: 255,102,97; }
  .chip.c-chem  { --rgb: 115,166,255; }
  .chip.c-phys  { --rgb: 102,209,128; }
  .chip.c-bio   { --rgb: 255,128,179; }
  .chip.c-eng   { --rgb: 199,148,97; }
  .chip.c-econ  { --rgb: 179,128,242; }
  .chip.c-other { --rgb: 153,166,191; }
  .chip { background: rgba(var(--rgb), .2); }
}
.check { color: var(--ok); font-weight: 700; font-size: 16px; }
.dash { color: var(--muted); opacity: .5; }
td.untracked { background: repeating-linear-gradient(135deg, transparent, transparent 6px, var(--none-bg) 6px, var(--none-bg) 7px); }

footer { color: var(--muted); font-size: 13px; margin-top: 22px; max-width: 82ch; }
footer b { color: var(--ink); }
.empty { border: 1px dashed var(--line); border-radius: 8px; padding: 28px; text-align: center; color: var(--muted); }

.btn.primary { background: var(--gold); border-color: var(--gold); color: #FFFDF7; }
.btn.primary:hover:not(:disabled) { filter: brightness(1.06); }

/* Username gate — shown on load until the viewer identifies themselves. */
.gate { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 24px; background: var(--paper); }
.gate[hidden] { display: none; } /* class selector would otherwise beat the UA [hidden] rule */
.gate-card { background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 28px 30px 30px; width: min(400px, 100%); box-shadow: 0 10px 34px rgba(0,0,0,.10); }
.gate-h { font-family: Charter, Georgia, serif; font-size: 26px; line-height: 1.15; margin: 6px 0 6px; }
.gate-p { color: var(--muted); margin: 0 0 18px; }
.gate-card input[type="text"] { width: 100%; box-sizing: border-box; font: inherit; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-bottom: 14px; }
.gate-card input:focus-visible { outline: 2px solid var(--gold); outline-offset: 1px; }
.gate-card .btn { width: 100%; }
.gate-err { color: #B3402E; font-size: 13.5px; margin: 12px 0 0; }

/* Signed-in identity line */
.whoami { font-size: 12.5px; color: var(--muted); margin-bottom: 14px; }
.whoami b { color: var(--ink); }
.linkbtn { font: inherit; color: var(--gold); background: none; border: none; padding: 0; cursor: pointer; text-decoration: underline; }
.linkbtn:hover { filter: brightness(1.1); }

/* Request-a-change dialog */
#req { width: min(460px, calc(100vw - 32px)); background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: 12px; padding: 22px 24px 24px; }
#req::backdrop { background: rgba(12, 17, 27, .5); }
.req-head { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 4px; }
.req-head > div { flex: 1; }
.req-head .btn { flex: none; }
#req h2 { font-family: Charter, Georgia, serif; font-size: 23px; margin: 2px 0 0; }
.req-intro { color: var(--muted); font-size: 13.5px; line-height: 1.5; margin: 8px 0 16px; }
#req-form > label { display: block; font-size: 12px; letter-spacing: .05em; text-transform: uppercase;
  color: var(--muted); font-weight: 600; margin-bottom: 12px; }
#req-form > label select, #req-form > label input { display: block; width: 100%; box-sizing: border-box; margin-top: 5px;
  font: 15px/1.4 -apple-system, system-ui, sans-serif; text-transform: none; letter-spacing: 0; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: 7px; padding: 8px 10px; }
.req-actions { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.req-status { font-size: 13px; color: var(--muted); }
.req-status.ok  { color: var(--ok); }
.req-status.err { color: #B3402E; }

/* Multi-select subject picker (checkboxes grouped by learning area) */
.req-field { margin-bottom: 12px; }
.req-flabel { display: block; font-size: 12px; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-bottom: 6px; }
.subj-picker { max-height: 200px; overflow-y: auto; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; background: var(--paper); }
.subj-group + .subj-group { margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--line); }
.subj-group-h { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); margin: 0 0 5px; }
.subj-opt { display: inline-flex; align-items: center; gap: 5px; margin: 0 14px 6px 0;
  font: 13.5px/1.3 -apple-system, system-ui, sans-serif; color: var(--ink); cursor: pointer; }
.subj-opt input { accent-color: var(--gold); margin: 0; }
.subj-opt.held { color: var(--muted); cursor: default; } /* already-held subject (grant): ticked + disabled */
.subj-opt.held input { accent-color: var(--muted); }
.subj-empty { color: var(--muted); font-size: 13.5px; padding: 4px 2px; }