/* The student display font stays available; teacher controls use system text. */
@font-face {
  font-family: "Ddanjit Jua";
  src: url("/assets/fonts/Jua-Regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
:root { --classroom-display-font: "Ddanjit Jua", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif; }

body[data-role="host"] { background: #F8F9F5; color: #243D35; }
body[data-role="host"] .teacher-shell {
  --teacher-font: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --home-paper: #F8F9F5;
  --home-ink: #243D35;
  --home-muted: #66766D;
  --home-line: #DFE6DD;
  --home-lime: #D2EB67;
  --home-sky: #DAEDF6;
  --home-pink: #F4DCE7;
  --home-yellow: #F9EDB3;
  --home-shadow: 0 3px 14px #243D3505;
  background: var(--home-paper);
  color: var(--home-ink);
  font-family: var(--teacher-font);
  font-size: calc(15px * var(--reading-scale, 1));
}
body[data-role="host"] .teacher-topbar {
  height: auto;
  min-height: 76px;
  padding: 12px 28px;
  gap: 20px;
  border-bottom: 1px solid var(--home-line);
  background: #fff;
  box-sizing: border-box;
}
body[data-role="host"] .teacher-topbar .brand > span:not(.brand-name) {
  color: var(--home-ink);
  font-family: var(--teacher-font);
  font-size: calc(22px * var(--reading-scale, 1));
  font-weight: 650;
  letter-spacing: -.04em;
}
body[data-role="host"] .brand-name,
body[data-role="host"] .side-bottom :is(img, p) { display: none; }
body[data-role="host"] .teacher-class-status {
  display: flex; align-items: center; gap: 10px; min-width: 0;
  background: transparent; color: var(--home-muted);
  font-size: calc(14px * var(--reading-scale, 1));
}
body[data-role="host"] .teacher-class-status b { overflow-wrap: anywhere; font-weight: 600; }
body[data-role="host"] .teacher-top-actions { gap: 8px; }
body[data-role="host"] .teacher-top-actions :is(.ghost, .secondary) {
  min-height: 48px; padding: 10px 14px;
  border: 1px solid transparent; border-radius: 12px;
  background: transparent; color: var(--home-ink); box-shadow: none;
  font-family: var(--teacher-font);
  font-size: calc(14px * var(--reading-scale, 1)); font-weight: 600; white-space: nowrap;
}
body[data-role="host"] .teacher-top-actions #header-invite { background: var(--home-lime); border-color: #C3DA65; }
body[data-role="host"] .teacher-workspace { grid-template-columns: 188px minmax(0, 1fr); min-height: calc(100dvh - 76px); }
body[data-role="host"] .teacher-workspace > .sidebar {
  padding: 22px 12px; gap: 8px; border-right: 1px solid var(--home-line); background: #fff;
}
body[data-role="host"] .sidebar .session-strip {
  padding: 14px; margin-bottom: 16px; gap: 5px;
  border: 1px solid var(--home-line); border-radius: 14px;
  background: var(--home-paper); color: var(--home-ink); overflow-wrap: anywhere;
}
body[data-role="host"] .sidebar .session-strip b { font-size: calc(15px * var(--reading-scale, 1)); line-height: 1.5; }
body[data-role="host"] .sidebar .session-strip :is(small, span) { color: var(--home-muted); font-size: calc(12px * var(--reading-scale, 1)); }
body[data-role="host"] .sidebar nav { display: grid; gap: 5px; }
body[data-role="host"] .sidebar .nav-item {
  min-height: 48px; padding: 11px 12px; gap: 11px;
  border: 1px solid transparent; border-radius: 12px;
  color: var(--home-muted); background: transparent; box-shadow: none;
  font-family: var(--teacher-font);
  font-size: calc(15px * var(--reading-scale, 1)); font-weight: 600; line-height: 1.4;
}
body[data-role="host"] .sidebar .nav-item svg { width: 21px; height: 21px; color: currentColor; flex-shrink: 0; }
body[data-role="host"] .sidebar .nav-item.active {
  border-color: #C3DA65; background: var(--home-lime); color: var(--home-ink);
  box-shadow: inset 3px 0 0 var(--home-ink); font-weight: 750;
}
body[data-role="host"] .sidebar .question-count { margin-left: auto; }
body[data-role="host"] .sidebar .side-bottom { padding: 16px 0 0; border-color: var(--home-line); }
body[data-role="host"] .sidebar .side-bottom button {
  width: 100%; min-height: 48px; margin: 0 0 6px; padding: 10px 12px;
  border-radius: 12px; box-shadow: none; font-family: var(--teacher-font);
  font-size: calc(14px * var(--reading-scale, 1));
}
body[data-role="host"] .sidebar #teacher-help { color: var(--home-muted); }
body[data-role="host"] .sidebar #leave { border: 1px solid #E7D4CE; background: #FFF8F4; color: #874F3E; }
body[data-role="host"] .teacher-workspace > .main-panel { width: 100%; max-width: 1560px; padding: 24px 28px 36px; box-sizing: border-box; }

/* Returning to free time stays in the common strip rather than two places. */
body[data-role="host"] .teacher-live-control {
  min-height: 46px; margin-bottom: 22px; padding: 11px 15px; gap: 12px;
  border: 1px solid var(--home-line); border-radius: 12px;
  background: #EFF4E9; color: var(--home-ink); box-shadow: none;
  font-size: calc(14px * var(--reading-scale, 1)); line-height: 1.5; box-sizing: border-box;
}
body[data-role="host"] .teacher-live-control:has(#header-free) { background: var(--home-sky); border-color: #CDDFE5; }
body[data-role="host"] .teacher-live-control .muted { color: var(--home-muted); font-size: calc(13px * var(--reading-scale, 1)); }
body[data-role="host"] .teacher-live-control #header-free {
  min-height: 48px; padding: 10px 14px; border: 1px solid #ADC6C4; border-radius: 10px;
  color: var(--home-ink); background: #fff; box-shadow: none; font-family: var(--teacher-font);
  font-size: calc(14px * var(--reading-scale, 1));
}
body[data-role="host"] .teacher-shell:has(#teacher-live-control #header-free) #host-live #free { display: none; }

body[data-role="host"] .teacher-home-intro { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 22px; }
body[data-role="host"] .teacher-home-intro > div:first-child { min-width: 0; }
body[data-role="host"] .teacher-home-intro p { margin: 0 0 6px; color: var(--home-muted); font-size: calc(14px * var(--reading-scale, 1)); font-weight: 500; line-height: 1.5; }
body[data-role="host"] :is(.teacher-home-intro, .teacher-picker-intro) h1 {
  margin: 0; color: var(--home-ink); font-family: var(--teacher-font);
  font-size: calc(30px * var(--reading-scale, 1)); font-weight: 750;
  line-height: 1.3; letter-spacing: -.045em; overflow-wrap: anywhere;
}
body[data-role="host"] .teacher-simple-count { display: flex; flex-direction: column; flex-shrink: 0; gap: 3px; text-align: right; }
body[data-role="host"] .teacher-simple-count b { color: var(--home-ink); font-size: calc(24px * var(--reading-scale, 1)); font-weight: 750; font-variant-numeric: tabular-nums; }
body[data-role="host"] .teacher-simple-count small { color: var(--home-muted); font-size: calc(14px * var(--reading-scale, 1)); font-weight: 500; }
body[data-role="host"] .teacher-simple-count > span { color: var(--home-muted); font-size: calc(13px * var(--reading-scale, 1)); }
body[data-role="host"] .teacher-home-layout { display: grid; grid-template-columns: minmax(0, 1fr) 250px; align-items: start; gap: 22px; }
body[data-role="host"] :is(.teacher-home-primary, .teacher-home-side) { display: grid; gap: 20px; min-width: 0; }
body[data-role="host"] .teacher-start h2 { margin: 0 0 13px; color: var(--home-ink); font-family: var(--teacher-font); font-size: calc(19px * var(--reading-scale, 1)); font-weight: 650; line-height: 1.4; letter-spacing: -.025em; }
body[data-role="host"] .teacher-choice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; align-items: stretch; }
body[data-role="host"] :is(.teacher-start, .teacher-picker) .teacher-choice {
  --choice-fill: var(--home-sky);
  display: grid; grid-template-columns: 72px minmax(0, 1fr) 22px; align-items: center; gap: 14px;
  min-width: 0; min-height: 112px; padding: 16px; position: relative;
  border: 1px solid var(--home-line); border-radius: 16px;
  background: #fff; color: var(--home-ink); box-shadow: var(--home-shadow);
  text-align: left; font-family: var(--teacher-font); cursor: pointer; touch-action: manipulation;
  overflow: visible; transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}
body[data-role="host"] :is(.teacher-start, .teacher-picker) .choice-green { --choice-fill: #EAF2CE; }
body[data-role="host"] :is(.teacher-start, .teacher-picker) .choice-yellow { --choice-fill: var(--home-yellow); }
body[data-role="host"] :is(.teacher-start, .teacher-picker) .choice-peach { --choice-fill: var(--home-pink); }
body[data-role="host"] .teacher-start .teacher-choice-featured { border-color: #B6CE71; }
body[data-role="host"] .teacher-start .teacher-choice-featured .teacher-choice-art { background: var(--home-lime); }
body[data-role="host"] .teacher-choice-art { display: grid; place-items: center; width: 72px; height: 76px; background: var(--choice-fill); border-radius: 12px; flex-shrink: 0; }
body[data-role="host"] .teacher-choice-art img { width: 100%; height: 100%; object-fit: contain; padding: 6px; box-sizing: border-box; }
body[data-role="host"] .teacher-choice-copy { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
body[data-role="host"] .teacher-choice-copy b { color: var(--home-ink); font-family: var(--teacher-font); font-size: calc(18px * var(--reading-scale, 1)); font-weight: 700; line-height: 1.4; letter-spacing: -.035em; overflow-wrap: anywhere; }
body[data-role="host"] .teacher-choice-copy > span { color: var(--home-muted); font-size: calc(15px * var(--reading-scale, 1)); font-weight: 400; line-height: 1.55; overflow-wrap: anywhere; }
body[data-role="host"] .teacher-choice-next { display: grid; place-items: center; position: static; width: 22px; height: 28px; color: var(--home-muted); }
body[data-role="host"] .teacher-choice-next svg { width: 20px; height: 20px; }
body[data-role="host"] .teacher-choice-featured .teacher-choice-next { color: var(--home-ink); }
body[data-role="host"] :is(.teacher-start, .teacher-picker) .teacher-choice:active:not(:disabled) { transform: translateY(1px); background: var(--home-paper); box-shadow: none; }
body[data-role="host"] :is(.teacher-choice, .nav-item, .teacher-category-tabs button, .teacher-home-layout button, .teacher-top-actions button, .teacher-live-control button):focus-visible { outline: 3px solid var(--home-ink); outline-offset: 4px; }

body[data-role="host"] .teacher-picker-intro { margin-bottom: 24px; }
body[data-role="host"] .teacher-picker-intro p { margin: 10px 0 0; color: var(--home-muted); font-size: calc(15px * var(--reading-scale, 1)); line-height: 1.6; }
body[data-role="host"] .teacher-category-tabs {
  display: flex; gap: 5px; padding: 5px; margin-bottom: 24px;
  border: 1px solid var(--home-line); border-radius: 14px; background: #fff;
  overflow-x: auto; scroll-padding: 8px;
}
body[data-role="host"] .teacher-category-tabs button { flex: 1; min-height: 48px; padding: 10px 14px; border: 1px solid transparent; border-radius: 10px; color: var(--home-muted); background: transparent; box-shadow: none; font-family: var(--teacher-font); font-size: calc(15px * var(--reading-scale, 1)); font-weight: 600; line-height: 1.4; white-space: nowrap; cursor: pointer; }
body[data-role="host"] .teacher-category-tabs button[aria-selected="true"] { border-color: #C3DA65; background: var(--home-lime); color: var(--home-ink); font-weight: 750; box-shadow: inset 0 -2px 0 #728846; }
body[data-role="host"] .teacher-picker .teacher-choice { min-height: 140px; padding: 20px; grid-template-columns: 88px minmax(0, 1fr) 22px; gap: 18px; }
body[data-role="host"] .teacher-picker .teacher-choice-art { width: 88px; height: 94px; }
body[data-role="host"] .teacher-picker .teacher-choice-copy b { font-size: calc(20px * var(--reading-scale, 1)); }
body[data-role="host"] .teacher-fold { grid-column: 1 / -1; padding: 0 15px; border: 1px solid var(--home-line); border-radius: 12px; background: #fff; color: var(--home-ink); }
body[data-role="host"] .teacher-fold summary { min-height: 48px; padding: 14px 0; color: var(--home-muted); font-family: var(--teacher-font); font-size: calc(14px * var(--reading-scale, 1)); font-weight: 600; line-height: 1.5; cursor: pointer; box-sizing: border-box; }
body[data-role="host"] .teacher-fold[open] summary { margin-bottom: 8px; color: var(--home-ink); }
body[data-role="host"] .teacher-fold .teacher-choice-grid { margin-bottom: 15px; }
body[data-role="host"] .teacher-picker-note { grid-column: 1 / -1; margin: 4px 0; color: var(--home-muted); font-size: calc(15px * var(--reading-scale, 1)); line-height: 1.65; }
body[data-role="host"] .teacher-next-lesson { justify-self: start; min-height: 48px; white-space: normal; overflow-wrap: anywhere; }
body[data-role="host"] .teacher-quiet-live { margin-bottom: 20px; }
body[data-role="host"] .teacher-quiet-live > summary { min-height: 48px; padding: 13px 16px; border: 1px solid var(--home-line); border-radius: 12px; background: #fff; color: var(--home-ink); font-family: var(--teacher-font); font-weight: 600; cursor: pointer; box-sizing: border-box; }
body[data-role="host"] .teacher-quiet-live #host-live { margin-top: 12px; }
body[data-role="host"] .teacher-nav-group { display: block; padding: 18px 12px 7px; color: var(--home-muted); font-size: 13px; font-weight: 600; }

/* QR, connected students and questions share one quiet panel treatment. */
body[data-role="host"] .teacher-home-layout :is(.teacher-stage, .teacher-invite, .teacher-question-preview, .teacher-home-students) { margin: 0; border: 1px solid var(--home-line); border-radius: 16px; background: #fff; color: var(--home-ink); box-shadow: var(--home-shadow); }
body[data-role="host"] .teacher-home-layout :is(.teacher-invite, .teacher-question-preview, .teacher-home-students) { padding: 18px; }
body[data-role="host"] .teacher-home-layout .teacher-invite { padding: 18px !important; border: 1px solid var(--home-line) !important; background: #fff !important; }
body[data-role="host"] .teacher-home-layout .panel-title { min-height: 48px; align-items: center; gap: 12px; margin-bottom: 12px; }
body[data-role="host"] .teacher-home-layout h2 { margin: 0; color: var(--home-ink); font-family: var(--teacher-font); font-size: calc(18px * var(--reading-scale, 1)); font-weight: 650; line-height: 1.4; letter-spacing: -.025em; }
body[data-role="host"] .teacher-home-layout :is(.ghost, .secondary) { min-height: 48px; padding: 10px 12px; border: 1px solid var(--home-line); border-radius: 10px; background: #fff; color: var(--home-ink); box-shadow: none; font-family: var(--teacher-font); font-size: calc(14px * var(--reading-scale, 1)); font-weight: 600; white-space: normal; }
body[data-role="host"] .teacher-home-layout .panel-title .ghost { border-color: transparent; color: var(--home-muted); }
body[data-role="host"] .teacher-home-students #students { max-height: 260px; overflow: auto; overscroll-behavior: contain; margin-bottom: 14px; }
body[data-role="host"] .teacher-home-students .student-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 10px; }
body[data-role="host"] .teacher-home-students .student-card { min-width: 0; min-height: 64px; padding: 12px; gap: 10px; border: 1px solid var(--home-line); border-radius: 12px; background: var(--home-paper); color: var(--home-ink); box-shadow: none; }
body[data-role="host"] .teacher-home-students .student-card > div { min-width: 0; }
body[data-role="host"] .teacher-home-students .student-card b { font-family: var(--teacher-font); font-size: calc(15px * var(--reading-scale, 1)); font-weight: 650; overflow-wrap: anywhere; }
body[data-role="host"] .teacher-home-students .student-card small { color: var(--home-muted); font-size: calc(12px * var(--reading-scale, 1)); line-height: 1.5; overflow-wrap: anywhere; }
body[data-role="host"] .teacher-home-students .student-avatar { width: 34px; height: 34px; flex-shrink: 0; border: 0; border-radius: 10px; background: #E8EFD8; color: var(--home-ink); box-shadow: none; font-family: var(--teacher-font); font-size: calc(16px * var(--reading-scale, 1)); font-weight: 700; }
body[data-role="host"] .teacher-home-students .student-card.offline { opacity: 1; background: #fff; }
body[data-role="host"] .teacher-home-students .student-card.offline .student-avatar { background: #F0F2EE; color: var(--home-muted); }
body[data-role="host"] .teacher-home-students .teacher-fold { border: 0; border-top: 1px solid var(--home-line); border-radius: 0; padding: 0; }
body[data-role="host"] .teacher-invite > h2 { text-align: left; margin-bottom: 6px; }
body[data-role="host"] .teacher-home-side .teacher-invite > p { margin: 0 0 14px; color: var(--home-muted); font-size: calc(14px * var(--reading-scale, 1)); line-height: 1.6; text-align: left; }
body[data-role="host"] .teacher-home-side .qr-code { width: 162px; height: 162px; padding: 8px; margin: 0 auto 12px; border: 1px solid var(--home-line); border-radius: 12px; background: #fff; box-shadow: none; box-sizing: border-box; image-rendering: pixelated; }
body[data-role="host"] .teacher-room-label { display: block; margin: 0 0 4px; color: var(--home-muted); font-size: calc(12px * var(--reading-scale, 1)); }
body[data-role="host"] .teacher-home-side .room-code { display: block; margin: 0 0 14px; color: var(--home-ink); font-family: var(--teacher-font); font-size: calc(28px * var(--reading-scale, 1)); font-weight: 750; font-variant-numeric: tabular-nums; letter-spacing: .12em; line-height: 1.2; overflow-wrap: anywhere; }
body[data-role="host"] .teacher-home-side #join-url { display: none; }
body[data-role="host"] .teacher-home-side #copy-link { width: 100%; background: var(--home-paper); }
body[data-role="host"] .teacher-home-side #invite-note { margin: 12px 0 0; color: var(--home-muted); font-size: calc(12px * var(--reading-scale, 1)); line-height: 1.6; text-align: left; }
body[data-role="host"] .teacher-question-preview .teacher-question-row { padding: 12px 0; border-bottom: 1px solid var(--home-line); }
body[data-role="host"] .teacher-question-preview .teacher-question-row:first-child { padding-top: 0; }
body[data-role="host"] .teacher-question-preview .teacher-question-row:last-child { padding-bottom: 0; border: 0; }
body[data-role="host"] .teacher-question-preview .teacher-question-row b { color: var(--home-ink); font-size: calc(14px * var(--reading-scale, 1)); font-weight: 650; }
body[data-role="host"] .teacher-question-preview .teacher-question-row p { margin: 5px 0 0; color: var(--home-muted); font-size: calc(15px * var(--reading-scale, 1)); line-height: 1.6; overflow-wrap: anywhere; }
body[data-role="host"] .teacher-home-layout .empty { margin: 0; padding: 16px 12px; border: 1px dashed var(--home-line); border-radius: 12px; background: var(--home-paper); color: var(--home-muted); font-family: var(--teacher-font); font-size: calc(15px * var(--reading-scale, 1)); line-height: 1.6; }
body[data-role="host"] .teacher-question-preview #question-preview { max-height: 280px; overflow: auto; overscroll-behavior: contain; }

@media (hover: hover) and (pointer: fine) {
  body[data-role="host"] :is(.teacher-start, .teacher-picker) .teacher-choice:hover:not(:disabled) { border-color: #A4BB90; background: #fff; box-shadow: 0 5px 16px #243D3510; transform: translateY(-2px); }
  body[data-role="host"] .sidebar .nav-item:hover:not(.active),
  body[data-role="host"] .teacher-top-actions .ghost:hover,
  body[data-role="host"] .teacher-category-tabs button:hover:not([aria-selected="true"]) { background: var(--home-paper); color: var(--home-ink); }
}
@media (min-width: 1450px) {
  body[data-role="host"] .teacher-picker > .teacher-choice-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 851px) and (max-height: 800px) {
  body[data-role="host"] .teacher-workspace > .main-panel { padding-top: 20px; }
  body[data-role="host"] .teacher-home-intro { margin-bottom: 18px; }
  html[data-text-size="100"] body[data-role="host"] .teacher-home-intro p { display: none; }
  body[data-role="host"] .teacher-start .teacher-choice-grid { gap: 12px; }
  body[data-role="host"] .teacher-start .teacher-choice { min-height: 106px; }
  body[data-role="host"] .teacher-start .teacher-choice-art { height: 70px; }
}
@media (max-width: 1100px) {
  body[data-role="host"] .teacher-workspace { grid-template-columns: 168px minmax(0, 1fr); }
  body[data-role="host"] .teacher-workspace > .main-panel { padding: 22px; }
  body[data-role="host"] .teacher-class-status { display: none; }
  body[data-role="host"] .teacher-home-layout { grid-template-columns: minmax(0, 1fr) 230px; gap: 18px; }
  body[data-role="host"] .teacher-home-primary .teacher-choice-grid { grid-template-columns: minmax(0, 1fr); }
  body[data-role="host"] .teacher-picker .teacher-choice { padding: 16px; gap: 12px; grid-template-columns: 72px minmax(0, 1fr) 22px; }
  body[data-role="host"] .teacher-picker .teacher-choice-art { width: 72px; height: 82px; }
  body[data-role="host"] .teacher-picker .teacher-choice-copy b { font-size: calc(18px * var(--reading-scale, 1)); }
  body[data-role="host"] .teacher-category-tabs button { padding-inline: 12px; }
}
@media (max-width: 850px) {
  body[data-role="host"] .teacher-topbar { padding: 12px 18px; gap: 12px; flex-wrap: wrap; }
  body[data-role="host"] .teacher-top-actions { flex-wrap: wrap; }
  body[data-role="host"] .teacher-workspace { grid-template-columns: minmax(0, 1fr); }
  body[data-role="host"] .teacher-workspace > .sidebar { display: flex; flex-direction: column; align-items: stretch; position: static; min-height: 0; padding: 10px 16px; border-right: 0; border-bottom: 1px solid var(--home-line); overflow: visible; }
  body[data-role="host"] .sidebar .session-strip { display: none; }
  body[data-role="host"] .sidebar nav { display: flex; gap: 6px; overflow-x: auto; padding: 4px; }
  body[data-role="host"] .sidebar .nav-item { flex-shrink: 0; width: auto; min-height: 48px; padding: 10px 12px; white-space: nowrap; }
  body[data-role="host"] .sidebar .side-bottom { display: flex; gap: 8px; align-items: center; margin: 2px 0 0; padding: 8px 4px 0; }
  body[data-role="host"] .sidebar .side-bottom button { width: auto; margin: 0; }
  body[data-role="host"] .teacher-home-layout { grid-template-columns: minmax(0, 1fr); }
  body[data-role="host"] .teacher-home-primary .teacher-choice-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  body[data-role="host"] .teacher-home-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  body[data-role="host"] .teacher-home-side .teacher-invite { display: block; }
  body[data-role="host"] .teacher-category-tabs button { flex: none; }
  body[data-role="host"] .teacher-live-control { flex-wrap: wrap; align-items: center; }
}
@media (max-width: 600px) {
  body[data-role="host"] .teacher-top-actions :is(.ghost, .secondary) { padding-inline: 10px; }
  body[data-role="host"] .teacher-workspace > .main-panel { padding: 20px 16px 28px; }
  body[data-role="host"] :is(.teacher-home-intro, .teacher-picker-intro) h1 { font-size: calc(28px * var(--reading-scale, 1)); }
  body[data-role="host"] .teacher-home-primary .teacher-choice-grid,
  body[data-role="host"] .teacher-picker .teacher-choice-grid,
  body[data-role="host"] .teacher-home-side { grid-template-columns: minmax(0, 1fr); }
  body[data-role="host"] .teacher-simple-count b { font-size: calc(20px * var(--reading-scale, 1)); }
  body[data-role="host"] .teacher-simple-count small { font-size: calc(12px * var(--reading-scale, 1)); }
  body[data-role="host"] .teacher-home-students .student-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}

/* Enlarged text grows the cards; no line clamping or fixed card heights. */
html[data-text-size="150"] body[data-role="host"] .teacher-home-intro { align-items: flex-start; flex-wrap: wrap; }
html[data-text-size="150"] body[data-role="host"] .teacher-home-primary .teacher-choice-grid { grid-template-columns: minmax(0, 1fr); }
html[data-text-size="150"] body[data-role="host"] :is(.teacher-start, .teacher-picker) .teacher-choice { min-height: 140px; }
html[data-text-size="150"] body[data-role="host"] .teacher-picker .teacher-choice-grid { grid-template-columns: minmax(0, 1fr); }
html[data-text-size="150"] body[data-role="host"] .teacher-category-tabs button { flex: none; white-space: normal; min-width: 140px; }
html[data-text-size="150"] body[data-role="host"] .teacher-topbar { flex-wrap: wrap; }
html[data-text-size="150"] body[data-role="host"] .teacher-top-actions { flex-wrap: wrap; }

/* Selected navigation also has a border and an inset marker, not only color. */
html:is([data-color-mode="protan"], [data-color-mode="deutan"]) body[data-role="host"] .teacher-shell { --home-ink: #14233B; --home-muted: #405469; --home-lime: #FFCC40; --home-sky: #DAEDF6; }
html[data-color-mode="tritan"] body[data-role="host"] .teacher-shell { --home-ink: #172A28; --home-muted: #4D6560; --home-lime: #FFC0CD; --home-sky: #DBEEEA; }
html:not([data-color-mode="standard"]) body[data-role="host"] :is(.teacher-start, .teacher-picker) .teacher-choice { border-color: #596B63; }
html:not([data-color-mode="standard"]) body[data-role="host"] :is(.teacher-start, .teacher-picker) .teacher-choice:nth-child(2n) { border-style: dashed; }
html:not([data-color-mode="standard"]) body[data-role="host"] :is(.teacher-start, .teacher-picker) .teacher-choice:nth-child(3n) { border-style: double; border-width: 3px; }
html[data-color-mode="contrast"] body[data-role="host"] .teacher-shell { --home-ink: #111; --home-muted: #222; --home-paper: #fff; --home-line: #111; --home-shadow: none; }
html[data-color-mode="contrast"] body[data-role="host"] :is(.teacher-choice, .teacher-invite, .teacher-question-preview, .teacher-home-students, .teacher-live-control, .teacher-category-tabs, .session-strip) { background: #fff !important; border-color: #111 !important; color: #111 !important; box-shadow: none; }
html[data-color-mode="contrast"] body[data-role="host"] :is(.teacher-choice-art, .teacher-top-actions #header-invite, .teacher-home-students .student-avatar) { background: #fff !important; border: 1px solid #111; color: #111; }
html[data-color-mode="contrast"] body[data-role="host"] .sidebar .nav-item.active,
html[data-color-mode="contrast"] body[data-role="host"] .teacher-category-tabs button[aria-selected="true"] { background: #111; color: #fff; border-color: #111; box-shadow: none; }
html[data-color-mode="contrast"] body[data-role="host"] .sidebar #leave { color: #111; background: #fff; border-color: #111; }
@media (prefers-reduced-motion: reduce) {
  body[data-role="host"] :is(.teacher-choice, .teacher-choice:hover, .teacher-choice:active, .nav-item) { transition: none !important; transform: none !important; }
}
html[data-reduced-motion="true"] body[data-role="host"] :is(.teacher-choice, .teacher-choice:hover, .teacher-choice:active, .nav-item) { transition: none !important; transform: none !important; }