/* ===================================================================
   Teacher's Desk — styles
   Same palette, type and paper as the rest of the Signify apps: primary
   colours on off-white, small radii, a tight contact shadow under a soft
   ambient one. Fonts are self-hosted; no request ever leaves for a CDN.
   =================================================================== */

@font-face { font-family: 'Bricolage Grotesque'; font-style: normal; font-weight: 200 800; font-stretch: 100%; font-display: swap; src: url('/vendor/bricolage-grotesque.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 100 700; font-display: swap; src: url('/vendor/ibm-plex-sans.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('/vendor/ibm-plex-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('/vendor/ibm-plex-mono-500.woff2') format('woff2'); }

:root {
  --blue: #1D4ED8; --blue-dark: #1A3FAE; --blue-soft: #E9EEFB;
  --red: #C62828;  --red-dark: #A31F1F;  --red-soft: #FBEAEA;
  --yellow: #E0A100; --yellow-dark: #B57F00; --yellow-soft: #FDF4DC;
  --green: #1B7F4B; --green-soft: #E6F3EC;

  --ink: #1F2937; --muted: #6B7280; --faint: #9AA1AC;
  --line: #E2E0DB; --bg: #F7F6F3; --surface: #FFFFFF; --desk: #EAE8E3;

  --r: 6px; --r-sm: 4px; --r-panel: 10px;

  --display: 'Bricolage Grotesque', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --shadow-1: 0 1px 2px rgba(31,41,55,.07), 0 2px 5px rgba(31,41,55,.05);
  --shadow-2: 0 1px 2px rgba(31,41,55,.08), 0 6px 16px rgba(31,41,55,.10);
  --shadow-3: 0 1px 2px rgba(31,41,55,.09), 0 12px 30px rgba(31,41,55,.14);

  --on-accent: #FFFFFF;

  --row: 54px;
  --gap: 14px;
}

/* Classrooms turn the lights down for the projector, so the board follows
   the machine's own setting rather than burning white at the front. */
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #E8EAF0; --muted: #A3ABB8; --faint: #77808F;
    --line: #333A47; --bg: #11151C; --surface: #1A1F28; --desk: #0C1016;
    --blue: #6C93F5; --blue-dark: #4E77E0; --blue-soft: #1D2942;
    --red: #F0736F; --red-dark: #D2544F; --red-soft: #351E20;
    --yellow: #E9B93A; --yellow-dark: #C89A1E; --yellow-soft: #332A15;
    --green: #4FBF87; --green-soft: #16301F;
    --on-accent: #0F1420;
    --shadow-1: 0 1px 2px rgba(0,0,0,.4);
    --shadow-2: 0 2px 6px rgba(0,0,0,.45);
    --shadow-3: 0 12px 30px rgba(0,0,0,.55);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}
body.has-stage { overflow: hidden; }
body.is-arranging { user-select: none; cursor: grabbing; }

button, input, select, textarea { font-family: var(--body); font-size: inherit; color: inherit; }
a { color: var(--blue); }

h1, h2, h3, h4 {
  margin: 0 0 .4rem;
  font-family: var(--display);
  font-optical-sizing: auto;
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -.015em;
  text-wrap: balance;
}
p { margin: 0 0 .6rem; }
.hint { color: var(--muted); font-size: .82rem; margin: 0; display: flex; align-items: center; gap: .3rem; }
.section-title { font-size: .78rem; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin: 1rem 0 .35rem; font-family: var(--body); font-weight: 600; }
.icon { display: block; }
.icon-wrap { display: inline-flex; }

/* ---------------- buttons and fields ---------------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .35rem;
  padding: .42rem .8rem; border-radius: var(--r); cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  font-weight: 550; box-shadow: var(--shadow-1); white-space: nowrap;
  transition: background .12s, border-color .12s, transform .06s;
}
.btn:hover { border-color: var(--faint); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: default; box-shadow: none; }
.btn--primary { background: var(--blue); border-color: var(--blue); color: var(--on-accent); }
.btn--primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn--danger { background: var(--red); border-color: var(--red); color: var(--on-accent); }
.btn--danger:hover { background: var(--red-dark); border-color: var(--red-dark); }
.btn--ghost { background: transparent; box-shadow: none; }
.btn--small { padding: .24rem .55rem; font-size: .82rem; }
.btn--wide { width: 100%; }
.btn--block { width: 100%; margin-top: .5rem; }
.btn.is-on { background: var(--blue-soft); border-color: var(--blue); color: var(--blue); }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; flex: none; padding: 0;
  border: 0; border-radius: var(--r-sm); background: transparent; color: var(--muted); cursor: pointer;
}
.icon-btn:hover { background: var(--desk); color: var(--ink); }
.icon-btn--danger:hover { background: var(--red-soft); color: var(--red); }

.input, .select, .textarea {
  width: 100%; padding: .4rem .55rem;
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: var(--surface); color: var(--ink);
}
.textarea { resize: vertical; line-height: 1.45; }
.select--small { padding: .2rem .35rem; font-size: .85rem; width: auto; }
.input:focus-visible, .select:focus-visible, .textarea:focus-visible,
.btn:focus-visible, .icon-btn:focus-visible, .chip:focus-visible, button:focus-visible {
  outline: 2px solid var(--blue); outline-offset: 2px;
}

.field { display: block; margin-bottom: .6rem; }
.field--row { display: flex; align-items: center; justify-content: space-between; gap: .6rem; }
.field-label { display: flex; align-items: center; gap: .3rem; font-size: .82rem; color: var(--muted); margin-bottom: .18rem; }

.chips { display: flex; flex-wrap: wrap; gap: .3rem; }
.chip {
  padding: .22rem .55rem; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  font-size: .82rem; font-weight: 550; white-space: nowrap;
}
.chip:hover { border-color: var(--faint); }
.chip.is-on { background: var(--blue-soft); border-color: var(--blue); color: var(--blue); }
.chip--ghost { border-style: dashed; color: var(--muted); }
.chip--positive { background: var(--green-soft); border-color: transparent; color: var(--green); }
.chip--concern { background: var(--red-soft); border-color: transparent; color: var(--red); }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; background: var(--surface); }
.seg-btn { border: 0; background: transparent; padding: .28rem .6rem; cursor: pointer; color: var(--muted); font-size: .85rem; font-weight: 550; }
.seg-btn + .seg-btn { border-left: 1px solid var(--line); }
.seg-btn.is-on { background: var(--blue); color: var(--on-accent); }
.seg--tiny .seg-btn { padding: .15rem .4rem; font-size: .75rem; }

.tag { display: inline-block; padding: .05rem .4rem; border-radius: 999px; background: var(--blue-soft); color: var(--blue); font-size: .72rem; font-weight: 600; }
.tag--quiet { background: var(--desk); color: var(--muted); }

.switch { width: 38px; height: 22px; flex: none; border-radius: 999px; border: 1px solid var(--line); background: var(--desk); cursor: pointer; padding: 2px; display: flex; }
.switch-dot { width: 16px; height: 16px; border-radius: 50%; background: var(--surface); box-shadow: var(--shadow-1); transition: transform .14s; }
.switch.is-on { background: var(--blue); border-color: var(--blue); }
.switch.is-on .switch-dot { transform: translateX(16px); }

.check-inline { display: flex; align-items: center; gap: .4rem; font-size: .86rem; cursor: pointer; }
.stepper { display: inline-flex; align-items: center; gap: .2rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); padding: .1rem; }
.stepper-value { min-width: 2ch; text-align: center; font-family: var(--mono); font-weight: 500; }

/* ---------------- the frame ---------------- */

#app { min-height: 100%; display: flex; flex-direction: column; }

.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: .6rem;
  padding: .55rem clamp(.6rem, 2vw, 1.25rem);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-spacer { flex: 1; }
.brand { display: flex; align-items: center; gap: .45rem; font-family: var(--display); font-weight: 700; letter-spacing: -.02em; }
.brand-mark { display: inline-flex; width: 30px; height: 30px; align-items: center; justify-content: center; border-radius: var(--r-sm); background: var(--blue); color: var(--on-accent); }
.brand--big { font-size: 1.4rem; justify-content: center; margin-bottom: .6rem; }
.brand--big .brand-mark { width: 40px; height: 40px; }

.user { position: relative; }
.user-btn { display: flex; align-items: center; gap: .4rem; padding: .2rem .45rem .2rem .2rem; border: 1px solid transparent; border-radius: 999px; background: transparent; cursor: pointer; }
.user-btn:hover { background: var(--desk); }
.user-name { font-size: .86rem; font-weight: 550; }
.avatar { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; background: var(--desk); }
.avatar--initials { display: inline-flex; align-items: center; justify-content: center; background: var(--blue); color: var(--on-accent); font-size: .74rem; font-weight: 700; }

.menu {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 40;
  min-width: 234px; padding: .3rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-panel); box-shadow: var(--shadow-3);
}
.menu-head { display: flex; flex-direction: column; gap: .12rem; padding: .5rem .6rem .6rem; border-bottom: 1px solid var(--line); margin-bottom: .3rem; }
.menu-head .tag { align-self: flex-start; margin-top: .2rem; }
.menu-item {
  display: flex; align-items: center; gap: .5rem; width: 100%;
  padding: .42rem .6rem; border: 0; border-radius: var(--r-sm);
  background: transparent; cursor: pointer; text-align: left; text-decoration: none; color: var(--ink); font-size: .88rem;
}
.menu-item:hover { background: var(--desk); }
.menu-item--danger { color: var(--red); }

/* ---------------- the board ---------------- */

.board {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(var(--cols, 12), 1fr);
  grid-auto-rows: var(--row);
  gap: var(--gap);
  padding: clamp(.6rem, 2vw, 1.25rem);
  align-content: start;
  background:
    radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--faint) 26%, transparent) 1px, transparent 0)
    0 0 / 22px 22px;
}

.card {
  grid-column: calc(var(--x) + 1) / span var(--w);
  grid-row: calc(var(--y) + 1) / span var(--h);
  position: relative;
  display: flex; flex-direction: column; min-width: 0; min-height: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-1);
  transition: box-shadow .15s, border-color .15s;
}
.card:hover { box-shadow: var(--shadow-2); }
.card.is-dragging, .card.is-resizing {
  z-index: 20; box-shadow: var(--shadow-3); border-color: var(--blue);
  transform: translate(var(--drag-x, 0), var(--drag-y, 0)) scale(1.012);
  transition: none;
}
.card.is-new { animation: pop .6s ease; }
@keyframes pop { from { transform: scale(.94); box-shadow: 0 0 0 4px var(--blue-soft); } }

.card-head {
  display: flex; align-items: center; gap: .35rem;
  padding: .4rem .45rem .4rem .25rem;
  border-bottom: 1px solid var(--line);
  cursor: grab; touch-action: none;
}
.card.is-dragging .card-head { cursor: grabbing; }
.card-grip { display: flex; color: var(--faint); }
.card-icon { display: flex; color: var(--blue); }
.card-title { margin: 0; font-size: .86rem; font-weight: 650; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-actions { display: flex; gap: .1rem; opacity: 0; transition: opacity .12s; }
.card:hover .card-actions, .card:focus-within .card-actions { opacity: 1; }

.card-body { flex: 1; min-height: 0; overflow: auto; padding: .6rem .7rem .7rem; display: flex; flex-direction: column; gap: .5rem; }
.card-resize {
  position: absolute; right: 0; bottom: 0; width: 18px; height: 18px;
  cursor: nwse-resize; touch-action: none; opacity: 0; transition: opacity .12s;
  background:
    linear-gradient(135deg, transparent 48%, var(--faint) 48%, var(--faint) 56%, transparent 56%,
                    transparent 68%, var(--faint) 68%, var(--faint) 76%, transparent 76%);
  border-bottom-right-radius: var(--r-panel);
}
.card:hover .card-resize { opacity: .8; }

.board-empty { grid-column: 1 / -1; text-align: center; padding: 4rem 1rem; color: var(--muted); }

/* Below this the twelve columns mean nothing, so the board stacks and
   rearranging is switched off rather than silently flattening the layout. */
body.is-stacked .board { grid-template-columns: 1fr; grid-auto-rows: min-content; }
body.is-stacked .card { grid-column: 1 / -1; grid-row: auto; height: calc(var(--h) * var(--row) + (var(--h) - 1) * var(--gap)); }
body.is-stacked .card-head { cursor: default; }
body.is-stacked .card-grip, body.is-stacked .card-resize { display: none; }

/* ---------------- the big view ---------------- */

.stage {
  position: fixed; inset: 0; z-index: 60;
  display: flex; flex-direction: column;
  background: var(--bg);
  animation: stage-in .18s ease;
}
@keyframes stage-in { from { opacity: 0; transform: scale(.99); } }
.stage-head { display: flex; align-items: center; gap: .6rem; padding: .55rem clamp(.6rem, 2vw, 1.25rem); border-bottom: 1px solid var(--line); background: var(--surface); }
.stage-title { display: flex; align-items: center; gap: .5rem; margin: 0; font-size: 1.05rem; flex: 1; }
.stage-actions { display: flex; align-items: center; gap: .4rem; }
.stage-body { flex: 1; overflow: auto; padding: clamp(.8rem, 2.4vw, 1.6rem); max-width: 1180px; width: 100%; margin: 0 auto; display: flex; flex-direction: column; gap: .7rem; }

/* Presenting: the chrome goes, the type grows, and everything that is not
   the number or the name gets out of the way. */
.stage.is-present { background: var(--surface); }
.stage.is-present .stage-head { opacity: 0; height: 0; padding: 0; overflow: hidden; border: 0; }
.stage.is-present:hover .stage-head { opacity: 1; height: auto; padding: .55rem 1.25rem; border-bottom: 1px solid var(--line); }
.stage.is-present .stage-body { max-width: none; justify-content: center; padding: 2vh 4vw; }
.stage.is-present .hint, .stage.is-present .section-title { display: none; }
.stage.is-present .timer-ring { display: none; }
.stage.is-present .timer-bar { display: block; height: 14px; }
.stage.is-present .timer-face { min-height: 0; }
.stage.is-present .timer-title:placeholder-shown { display: none; }
.stage.is-present .timer-title { text-align: center; font-size: clamp(1rem, 3.4vh, 2rem); color: var(--muted); border: 0; }
.stage.is-present .timer-controls .btn, .stage.is-present .timer-adjust .btn,
.stage.is-present .chips, .stage.is-present .field { opacity: .55; transition: opacity .15s; }
.stage.is-present .timer-controls:hover .btn, .stage.is-present .timer-adjust:hover .btn,
.stage.is-present .chips:hover, .stage.is-present .field:hover { opacity: 1; }
.stage.is-present .timer-digits { font-size: min(30vw, 46vh); }
.stage.is-present .sw-digits { font-size: min(24vw, 38vh); }
.stage.is-present .pick-name { font-size: min(16vw, 24vh); }
.stage.is-present .group-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.4rem; }
.stage.is-present .group-names li { font-size: clamp(1.1rem, 2.4vh, 2rem); }
.stage.is-present .group-title-text, .stage.is-present .group-title { font-size: clamp(1.2rem, 3vh, 2.2rem); }
.stage.is-present .beh-name { font-size: 1.15rem; }
.stage.is-present .note-text, .stage.is-present .check-text { font-size: clamp(1.1rem, 3.2vh, 2.4rem); }

/* In the big view the page itself scrolls, so the panes inside a widget
   stop being their own little scrolling boxes and simply run on. */
.stage-body .group-output,
.stage-body .beh-grid,
.stage-body .alarm-list,
.stage-body .sw-laps { flex: none; overflow: visible; }
.stage-body .groups,
.stage-body .behaviour,
.stage-body .alarms,
.stage-body .note { flex: none; }
.stage-body .group-grid { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.stage-body .note-text { min-height: 46vh; }
.stage-body .timer-digits { font-size: clamp(3rem, 13cqw, 8rem); }
.stage-body .timer-ring svg { width: min(100%, 44vh); max-height: 44vh; }
.stage-body .ring-track, .stage-body .ring-value { stroke-width: 4; }
.stage-body .sw-digits { font-size: clamp(3rem, 12cqw, 7rem); }
.stage-body .pick-name { font-size: clamp(2.2rem, 9cqw, 5.5rem); }
.stage-body .timer-face { min-height: 46vh; }
.stage-body .pick-face { min-height: 34vh; }

/* ---------------- dialogs and toasts ---------------- */

.scrim {
  position: fixed; inset: 0; z-index: 70;
  display: flex; align-items: center; justify-content: center; padding: 1rem;
  background: rgba(15, 20, 28, .45); backdrop-filter: blur(2px);
}
.dialog {
  width: min(440px, 100%); max-height: 88vh; overflow: auto;
  padding: 1.1rem; border-radius: var(--r-panel);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-3);
}
.dialog--wide { width: min(620px, 100%); }
.dialog-title { font-size: 1.1rem; }
.dialog-body { margin-bottom: .8rem; }
.dialog-note { color: var(--muted); font-size: .84rem; }
.dialog-actions { display: flex; justify-content: flex-end; gap: .4rem; margin-top: .9rem; }

.toasts { position: fixed; left: 50%; bottom: 1.1rem; transform: translateX(-50%); z-index: 90; display: flex; flex-direction: column; gap: .4rem; align-items: center; pointer-events: none; }
.toast { padding: .45rem .8rem; border-radius: 999px; background: var(--ink); color: var(--bg); font-size: .86rem; box-shadow: var(--shadow-2); animation: toast-in .2s ease; }
.toast--warn { background: var(--red); color: var(--on-accent); }
.toast--out { opacity: 0; transition: opacity .3s; }
@keyframes toast-in { from { opacity: 0; transform: translateY(6px); } }

.centre { flex: 1; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.centre-card { width: min(430px, 100%); padding: 1.6rem; text-align: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-panel); box-shadow: var(--shadow-2); }
.centre-title { font-size: 1.25rem; }
.centre-body { color: var(--muted); }
.centre-actions { display: flex; flex-direction: column; gap: .5rem; margin-top: 1rem; }
.centre-note { font-size: .8rem; color: var(--faint); margin-top: .9rem; }

/* ---------------- catalogue ---------------- */

.catalogue { display: flex; flex-direction: column; gap: .35rem; }
.cat-item {
  display: flex; align-items: flex-start; gap: .7rem; width: 100%; text-align: left;
  padding: .6rem .7rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); cursor: pointer;
}
.cat-item:hover { border-color: var(--blue); background: var(--blue-soft); }
.cat-icon { display: flex; color: var(--blue); padding-top: .1rem; }
.cat-text { flex: 1; display: flex; flex-direction: column; gap: .1rem; min-width: 0; }
.cat-name { font-weight: 650; display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.cat-blurb { font-size: .82rem; color: var(--muted); }
.cat-plus { display: flex; color: var(--faint); align-self: center; }

/* ---------------- class lists ---------------- */

.picker { display: flex; gap: .3rem; align-items: center; }
.picker .select { flex: 1; min-width: 0; }
.lists { display: flex; flex-direction: column; gap: .35rem; }
.list-row { display: flex; align-items: center; gap: .5rem; padding: .45rem .6rem; border: 1px solid var(--line); border-radius: var(--r); }
.list-row-name { flex: 1; font-weight: 550; }

/* ---------------- timer ---------------- */

.timer, .stopwatch, .alarms, .randomiser, .groups, .behaviour, .note { display: flex; flex-direction: column; gap: .5rem; flex: 1; min-height: 0; }
.timer-label { font-size: .82rem; color: var(--muted); text-align: center; }
.timer-title { width: 100%; border: 0; border-bottom: 1px dashed var(--line); background: transparent; padding: .1rem 0; text-align: center; font-size: .86rem; color: var(--muted); }
.timer-face { position: relative; display: flex; align-items: center; justify-content: center; flex: 1; min-height: 74px; }
.timer-ring { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; pointer-events: none; }
.timer-ring svg { width: min(100%, 190px); height: 100%; max-height: 190px; transform: rotate(-90deg); }
.ring-track { fill: none; stroke: var(--desk); stroke-width: 6; }
.ring-value { fill: none; stroke: var(--blue); stroke-width: 6; stroke-linecap: round; transition: stroke-dashoffset .25s linear, stroke .2s; }
.ring-value.is-low { stroke: var(--yellow); }
.ring-value.is-over { stroke: var(--red); }
.timer-readout { position: relative; text-align: center; }
.timer-digits {
  font-family: var(--mono); font-weight: 500; font-variant-numeric: tabular-nums;
  font-size: clamp(1.9rem, 7cqw, 3.2rem); line-height: 1; letter-spacing: -.02em;
}
.timer-digits.is-over { color: var(--red); }
.timer-over { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--red); }
.timer-bar { display: none; height: 10px; border-radius: 999px; background: var(--desk); overflow: hidden; }
.timer-bar-fill { height: 100%; background: var(--blue); border-radius: 999px; transition: width .25s linear, background .2s; }
.timer-bar-fill.is-low { background: var(--yellow); }
.timer-bar-fill.is-over { background: var(--red); }
.timer-controls { display: flex; gap: .35rem; }
.timer-adjust { display: flex; gap: .3rem; }
.timer-adjust .btn { flex: 1; }

/* ---------------- stopwatch ---------------- */

.sw-digits { font-family: var(--mono); font-weight: 500; font-variant-numeric: tabular-nums; font-size: clamp(1.8rem, 6cqw, 3rem); text-align: center; line-height: 1.1; }
.sw-laps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .12rem; overflow: auto; }
.sw-lap { display: grid; grid-template-columns: 2ch 1fr auto auto; gap: .4rem; align-items: center; font-size: .82rem; padding: .12rem .1rem; border-bottom: 1px solid var(--line); }
.sw-lap-n { color: var(--faint); font-family: var(--mono); }
.sw-lap-label { border: 0; background: transparent; border-bottom: 1px dashed transparent; padding: 0; min-width: 0; }
.sw-lap-label:hover, .sw-lap-label:focus { border-bottom-color: var(--line); }
.sw-lap-split { font-family: var(--mono); color: var(--muted); }
.sw-lap-total { font-family: var(--mono); font-weight: 500; }

/* ---------------- alarms ---------------- */

.alarm-next { display: flex; justify-content: space-between; gap: .5rem; padding: .35rem .5rem; border-radius: var(--r-sm); background: var(--desk); font-size: .84rem; color: var(--muted); }
.alarm-next.is-live { background: var(--blue-soft); color: var(--blue); font-weight: 550; }
.alarm-next-when { font-family: var(--mono); }
.alarm-list { display: flex; flex-direction: column; gap: .4rem; overflow: auto; }
.alarm { padding: .4rem .5rem; border: 1px solid var(--line); border-radius: var(--r); display: flex; flex-direction: column; gap: .3rem; }
.alarm.is-off { opacity: .55; }
.alarm-head { display: flex; align-items: center; gap: .4rem; }
.alarm-time { border: 0; background: transparent; font-family: var(--mono); font-size: .95rem; font-weight: 500; padding: 0; width: auto; }
.alarm-label { flex: 1; min-width: 0; border: 0; border-bottom: 1px dashed transparent; background: transparent; padding: .05rem 0; font-size: .86rem; }
.alarm-label:hover, .alarm-label:focus { border-bottom-color: var(--line); }
.alarm-days { display: flex; gap: .15rem; }
.day { width: 22px; height: 22px; border-radius: var(--r-sm); border: 1px solid var(--line); background: transparent; color: var(--faint); font-size: .7rem; font-weight: 600; cursor: pointer; }
.day.is-on { background: var(--blue); border-color: var(--blue); color: var(--on-accent); }
.alarm-sound { display: flex; align-items: center; gap: .35rem; color: var(--muted); }
.alarm-ringing { display: flex; align-items: center; gap: .5rem; padding: .45rem .6rem; border-radius: var(--r); background: var(--red); color: var(--on-accent); font-weight: 600; animation: ring 1s ease-in-out infinite; }
.alarm-ringing-label { flex: 1; }
.alarm-ringing .btn { background: color-mix(in srgb, var(--on-accent) 18%, transparent); border-color: transparent; color: var(--on-accent); }
@keyframes ring { 50% { filter: brightness(1.18); } }

/* ---------------- notes ---------------- */

.note { border-radius: var(--r-sm); }
.note-head { display: flex; align-items: center; gap: .4rem; }
.note-title { flex: 1; min-width: 0; border: 0; background: transparent; font-family: var(--display); font-weight: 650; font-size: .95rem; padding: 0; }
.note-body { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.note-text { flex: 1; width: 100%; min-height: 60px; border: 0; background: transparent; resize: none; padding: .2rem 0; line-height: 1.5; font-size: .92rem; }
.note[data-colour="yellow"] { background: var(--yellow-soft); margin: -.6rem -.7rem -.7rem; padding: .6rem .7rem .7rem; }
.note[data-colour="blue"] { background: var(--blue-soft); margin: -.6rem -.7rem -.7rem; padding: .6rem .7rem .7rem; }
.note[data-colour="green"] { background: var(--green-soft); margin: -.6rem -.7rem -.7rem; padding: .6rem .7rem .7rem; }
.note[data-colour="pink"] { background: var(--red-soft); margin: -.6rem -.7rem -.7rem; padding: .6rem .7rem .7rem; }
.swatches { display: flex; gap: .3rem; }
.swatch { width: 22px; height: 22px; border-radius: 50%; border: 2px solid transparent; cursor: pointer; box-shadow: inset 0 0 0 1px var(--line); }
.swatch[data-colour="yellow"] { background: var(--yellow-soft); }
.swatch[data-colour="blue"] { background: var(--blue-soft); }
.swatch[data-colour="green"] { background: var(--green-soft); }
.swatch[data-colour="pink"] { background: var(--red-soft); }
.swatch[data-colour="plain"] { background: var(--surface); }
.swatch.is-on { border-color: var(--ink); }

.check-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .1rem; }
.check-row { display: flex; align-items: center; gap: .4rem; }
.check { width: 20px; height: 20px; flex: none; border: 1.5px solid var(--faint); border-radius: var(--r-sm); background: transparent; cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--on-accent); }
.check.is-on { background: var(--green); border-color: var(--green); }
.check-text { flex: 1; min-width: 0; border: 0; background: transparent; padding: .15rem 0; }
.check-text.is-done { color: var(--faint); text-decoration: line-through; }
.check-foot { display: flex; align-items: center; gap: .5rem; margin-top: .4rem; flex-wrap: wrap; }

/* ---------------- randomiser ---------------- */

.pick-face { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .25rem; min-height: 60px; text-align: center; }
.pick-name {
  font-family: var(--display); font-weight: 700; letter-spacing: -.02em;
  font-size: clamp(1.3rem, 5.5cqw, 2.6rem); line-height: 1.1;
  overflow-wrap: anywhere;
}
.pick-name.is-rolling { color: var(--faint); }
.pick-name.is-landed { animation: land .5s cubic-bezier(.2,1.5,.4,1); color: var(--blue); }
@keyframes land { from { transform: scale(.8); } }
.pick-count { font-size: .8rem; color: var(--muted); }
.pick-extra { display: flex; flex-direction: column; gap: .4rem; }
.pick-roll { display: flex; flex-wrap: wrap; gap: .25rem; }
.pick-chip { padding: .18rem .5rem; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); font-size: .8rem; cursor: pointer; }
.pick-chip.is-had { background: var(--blue-soft); border-color: transparent; color: var(--blue); }
.pick-chip.is-away { opacity: .45; text-decoration: line-through; }

/* ---------------- groups ---------------- */

.group-controls { display: flex; flex-direction: column; gap: .4rem; }
.group-row { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.group-output { flex: 1; min-height: 0; overflow: auto; }
.group-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: .5rem; }
.group-card { position: relative; padding: .45rem .55rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); }
.group-title, .group-title-text { font-family: var(--display); font-weight: 650; font-size: .85rem; margin: 0 0 .2rem; border: 0; background: transparent; padding: 0; width: 100%; }
.group-names { list-style: none; margin: 0; padding: 0; font-size: .85rem; display: flex; flex-direction: column; gap: .05rem; }
.group-size { position: absolute; top: .35rem; right: .45rem; font-family: var(--mono); font-size: .7rem; color: var(--faint); }
.group-extra { display: flex; flex-direction: column; gap: .3rem; }
.apart { display: flex; flex-direction: column; gap: .3rem; }
.apart-row { display: flex; align-items: center; gap: .35rem; font-size: .85rem; flex-wrap: wrap; }
.saved { display: flex; flex-direction: column; gap: .3rem; }
.saved-row { display: flex; align-items: center; gap: .5rem; padding: .3rem .45rem; border: 1px solid var(--line); border-radius: var(--r); }
.saved-name { flex: 1; font-weight: 550; font-size: .88rem; }

/* ---------------- behaviour ---------------- */

.beh-grid { flex: 1; min-height: 0; overflow: auto; display: flex; flex-direction: column; gap: .2rem; }
.beh-pupil {
  display: flex; align-items: center; gap: .5rem; width: 100%;
  padding: .32rem .45rem; border: 1px solid transparent; border-radius: var(--r);
  background: transparent; cursor: pointer; text-align: left;
}
.beh-pupil:hover { background: var(--desk); }
.beh-pupil.is-open { background: var(--blue-soft); border-color: var(--blue); }
.beh-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .88rem; }
.beh-tallies { display: flex; gap: .25rem; }
.tally { min-width: 22px; padding: .02rem .32rem; border-radius: 999px; font-family: var(--mono); font-size: .76rem; font-weight: 500; text-align: center; }
.tally--pos { background: var(--green-soft); color: var(--green); }
.tally--neg { background: var(--red-soft); color: var(--red); }
.beh-chips { display: flex; flex-direction: column; gap: .25rem; padding: .35rem .45rem .5rem; }
.beh-chip-row { display: flex; flex-wrap: wrap; gap: .25rem; }
.beh-foot { display: flex; flex-direction: column; gap: .3rem; border-top: 1px solid var(--line); padding-top: .4rem; }
.beh-summary { display: flex; align-items: center; gap: .3rem; font-size: .82rem; color: var(--muted); }
.beh-privacy { color: var(--faint); font-size: .76rem; }
.beh-log { display: flex; flex-direction: column; gap: .15rem; }
.beh-entry { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) auto auto; gap: .5rem; align-items: center; padding: .25rem .4rem; border-left: 3px solid var(--line); font-size: .84rem; }
.beh-entry--positive { border-left-color: var(--green); }
.beh-entry--concern { border-left-color: var(--red); }
.beh-entry-who { font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.beh-entry-what { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.beh-entry-note { color: var(--faint); font-style: italic; }
.beh-entry-when { font-family: var(--mono); font-size: .74rem; color: var(--faint); }
.reason-editor { display: flex; flex-direction: column; gap: .3rem; }
.reason-row { display: flex; align-items: center; gap: .4rem; }

/* ---------------- seating plan ---------------- */

.seating { display: flex; flex-direction: column; gap: .5rem; flex: 1; min-height: 0; }
.plan-head { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.plan-head .picker { flex: 1; min-width: 150px; }
.plan-toolbar { display: flex; gap: .3rem; flex-wrap: wrap; }
.plan-stage { flex: 1; min-height: 0; display: flex; gap: .6rem; }
/* The room's pixel size is worked out in JS, because aspect-ratio loses to a
   flex parent that has already chosen the height — and a room with
   non-square cells draws round tables as ellipses. */
.room-wrap { flex: 1; min-width: 0; min-height: 0; display: flex; align-items: center; justify-content: center; }
.room-box { max-width: 100%; }

/* The whiteboard end. Without it the plan is ambiguous the moment anybody
   but the person who made it looks at it. */
.room-front {
  text-align: center; font-size: .68rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); background: var(--desk); border-radius: var(--r-sm) var(--r-sm) 0 0;
  padding: .12rem; border: 1px solid var(--line); border-bottom: 0;
}
.room {
  position: relative; width: 100%; min-height: 60px;
  border: 1px solid var(--line); border-radius: 0 0 var(--r-sm) var(--r-sm);
  background:
    radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--faint) 22%, transparent) 1px, transparent 0)
    0 0 / calc(var(--cell, 8px) * 2) calc(var(--cell, 8px) * 2);
  overflow: hidden;
}
.room-note { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; text-align: center; padding: 1rem; }

.desk {
  position: absolute;
  left: calc(var(--x) / var(--cols) * 100%);
  top: calc(var(--y) / var(--rows) * 100%);
  width: calc(var(--w) / var(--cols) * 100%);
  height: calc(var(--h) / var(--rows) * 100%);
}
.desk-surface {
  position: absolute; cursor: grab; touch-action: none;
  left: calc(var(--bx) / var(--w) * 100%); top: calc(var(--by) / var(--h) * 100%);
  width: calc(var(--bw) / var(--w) * 100%); height: calc(var(--bh) / var(--h) * 100%);
  background: var(--desk); border: 1px solid var(--line); border-radius: 3px;
}
.desk-surface--round { border-radius: 50%; }
.desk.is-selected .desk-surface { border-color: var(--blue); background: var(--blue-soft); }
.is-seating-drag .desk-surface { cursor: grabbing; }

.seat {
  position: absolute; overflow: hidden; touch-action: none;
  left: calc(var(--bx) / var(--w) * 100%); top: calc(var(--by) / var(--h) * 100%);
  width: calc(var(--bw) / var(--w) * 100%); height: calc(var(--bh) / var(--h) * 100%);
  display: flex; align-items: center; justify-content: center; text-align: center;
  padding: 1px 2px; border-radius: 4px; border: 1px solid var(--line);
  background: var(--surface); font-size: calc(var(--cell, 8px) * 0.82); line-height: 1.1;
}
.seat.is-free { border-style: dashed; background: transparent; }
.seat.is-taken { background: var(--blue-soft); border-color: color-mix(in srgb, var(--blue) 45%, transparent); color: var(--blue); font-weight: 550; }
.seating.is-editable .seat { cursor: pointer; }
.seat.is-selected { outline: 2px solid var(--blue); outline-offset: 1px; }
.seat.is-drop { background: var(--yellow-soft); border-color: var(--yellow); border-style: solid; }
.seat-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
.seat-initials { display: none; font-family: var(--mono); font-weight: 500; }
/* Too small for a name is not too small to be useful — initials still tell a
   teacher who is sitting where. */
.room.is-tiny .seat-name { display: none; }
.room.is-tiny .seat-initials { display: block; font-size: calc(var(--cell, 8px) * 1.5); }

.starters { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .5rem; padding: 1rem; text-align: center; }
.starter-row { display: flex; gap: .3rem; flex-wrap: wrap; justify-content: center; }

.plan-side { width: 200px; flex: none; display: flex; flex-direction: column; gap: .4rem; overflow: auto; }
.plan-tray { display: flex; flex-direction: column; gap: .3rem; }
.tray-list { display: flex; flex-wrap: wrap; gap: .25rem; }
.tray-chip {
  padding: .18rem .5rem; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); font-size: .8rem; cursor: grab; touch-action: none;
}
.tray-chip:hover { border-color: var(--blue); }
.tray-chip.is-selected { background: var(--blue); border-color: var(--blue); color: var(--on-accent); }
.plan-inspector { display: flex; flex-direction: column; gap: .35rem; border-top: 1px solid var(--line); padding-top: .4rem; }
.plan-row { display: flex; align-items: center; justify-content: space-between; gap: .4rem; }
.plan-row .is-flipped .icon { transform: scaleX(-1); }

.drag-ghost {
  position: fixed; z-index: 95; pointer-events: none;
  transform: translate(-50%, -140%);
  padding: .2rem .55rem; border-radius: 999px;
  background: var(--blue); color: var(--on-accent);
  font-size: .82rem; font-weight: 550; box-shadow: var(--shadow-2);
}
body.is-seating-drag { user-select: none; }

.stage-body .seating { flex: 1; }
.stage-body .plan-side { width: 240px; }
.stage.is-present .plan-head, .stage.is-present .plan-side { display: none; }
.stage.is-present .room-front { font-size: 1rem; padding: .3rem; }
.stage.is-present .seat { font-size: calc(var(--cell, 8px) * 0.9); }

@media (max-width: 900px) {
  .plan-stage { flex-direction: column; }
  .plan-side { width: auto; max-height: 40vh; }
}

/* Widget bodies size their type against their own width, not the page's,
   so a narrow timer card does not spill its digits. */
.card-body, .stage-body { container-type: inline-size; }

@media (max-width: 560px) {
  .user-name { display: none; }
  .beh-entry { grid-template-columns: minmax(0, 1fr) auto auto; }
  .beh-entry-note { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}