:root {
  color-scheme: light;
  --bg: #f5f5f9;
  --panel: #ffffff;
  --ink: #20212b;
  --muted: #626570;
  --line: #e5e6ee;
  --hover: #eeeef5;
  --accent: #5056ef;
  --accent-strong: #3f45cf;
  --on-accent: #ffffff;
  --soft: #e9eaff;
  --soft-ink: #4249bf;
  --lime: #eff5da;
  --lime-ink: #596a20;
  --warm: #fff0e4;
  --warm-ink: #9d511e;
  --done: #e4f3eb;
  --done-ink: #276e4d;
  --danger: #a52e36;
  --danger-bg: #fbeaec;
  --shadow: 0 18px 60px rgb(35 37 58 / 8%);
  --radius: 24px;
  --text-body: 1rem;
  --text-secondary: .875rem;
  --text-caption: .75rem;
  --text-heading: 1.75rem;
  --mobile-nav-reserve: 64px;
  --editor-cta-reserve: 44px;
  --keyboard-inset: 0px;
  font-family: ui-rounded, "SF Pro Rounded", "Segoe UI", "Noto Sans", sans-serif;
  font-synthesis: none;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #050505;
  --panel: #141414;
  --ink: #f5f5f5;
  --muted: #b8b8b8;
  --line: #303030;
  --hover: #202020;
  --accent: #3f61d2;
  --accent-strong: #3150b5;
  --on-accent: #ffffff;
  --soft: #202c50;
  --soft-ink: #b8c8ff;
  --lime: #29321f;
  --lime-ink: #c6da8d;
  --warm: #36271f;
  --warm-ink: #ffc59d;
  --done: #20362b;
  --done-ink: #9bdbb8;
  --danger: #ffabb0;
  --danger-bg: #3a2023;
  --shadow: 0 18px 60px rgb(0 0 0 / 35%);
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--bg); }
body { margin: 0; min-height: 100vh; min-height: 100dvh; background: var(--bg); color: var(--ink); overflow-wrap: anywhere; font-size: var(--text-body); line-height: 1.45; }
button, input, textarea, select { font: inherit; color: inherit; }
button, select, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: wait; opacity: .58; }
a { color: inherit; }
svg { width: 1.25rem; height: 1.25rem; flex: 0 0 auto; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
[hidden] { display: none !important; }

.boot, .fatal-state, .no-script { min-height: 100vh; min-height: 100dvh; display: grid; place-content: center; justify-items: center; gap: 1rem; padding: 2rem; text-align: center; }
.fatal-state svg { width: 2.5rem; height: 2.5rem; color: var(--danger); }
.spinner { width: 1.3rem; height: 1.3rem; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(1turn); } }

.app-shell { display: grid; grid-template-columns: 214px minmax(0, 1fr); min-height: 100vh; min-height: 100dvh; }
.sidebar { position: sticky; top: 0; height: 100vh; height: 100dvh; display: flex; flex-direction: column; gap: 1.6rem; overflow-y: auto; overscroll-behavior: contain; padding: 2rem 1.1rem 1.2rem; background: var(--panel); border-right: 1px solid var(--line); z-index: 3; }
.brand { padding: 0 .75rem; font-size: 1.65rem; line-height: 1.08; font-weight: 850; letter-spacing: -.055em; }
.group-badge { display: flex; align-items: center; gap: .65rem; padding: .65rem; border-radius: 14px; background: var(--bg); }
.group-badge > span { display: grid; place-items: center; width: 2.25rem; height: 2.25rem; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); font-size: var(--text-caption); font-weight: 750; }
.group-badge div, .sidebar-user div { display: flex; flex-direction: column; min-width: 0; }
.group-badge strong, .sidebar-user strong { font-size: var(--text-secondary); text-overflow: ellipsis; overflow: hidden; white-space: nowrap; }
.group-badge small, .sidebar-user small { margin-top: .2rem; color: var(--muted); font-size: var(--text-caption); }
.desktop-nav { display: grid; gap: .35rem; }
.desktop-nav button, .mobile-nav button { border: 0; background: transparent; color: var(--muted); }
.desktop-nav button { min-height: 46px; display: flex; align-items: center; gap: .72rem; padding: .7rem .8rem; border-radius: 12px; font-size: var(--text-secondary); text-align: left; }
.desktop-nav button:hover { background: var(--hover); color: var(--ink); }
.desktop-nav button[aria-current="page"] { background: var(--soft); color: var(--soft-ink); font-weight: 700; }
.sidebar-user { display: flex; gap: .65rem; align-items: center; margin-top: auto; padding: .65rem; }
.avatar { width: 2.3rem; height: 2.3rem; border-radius: 50%; display: grid; place-items: center; background: var(--lime); color: var(--lime-ink); font-size: .75rem; font-weight: 800; }

.workspace { min-width: 0; }
.topbar { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem clamp(1.2rem, 4vw, 3.5rem); }
.context-label { color: var(--muted); font-size: var(--text-secondary); }
.mobile-brand { display: none; font-weight: 850; letter-spacing: -.06em; }
.mobile-brand strong { font: inherit; line-height: 1.1; }
.mobile-brand small { margin-top: .25rem; color: var(--muted); font-size: var(--text-caption); font-weight: 600; letter-spacing: 0; }
.theme-switch { flex-shrink: 0; }
.theme-switch { display: flex; align-items: center; gap: .2rem; padding: .2rem; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; }
.theme-button { min-height: 44px; display: flex; align-items: center; gap: .35rem; padding: .5rem .65rem; border: 0; border-radius: 9px; background: transparent; color: var(--muted); font-size: var(--text-caption); }
.theme-button svg { width: 1rem; height: 1rem; }
.theme-button[aria-pressed="true"] { background: var(--soft); color: var(--soft-ink); }
.content { width: min(100%, 1120px); min-height: calc(100vh - 78px); padding: 1.2rem clamp(1.2rem, 4vw, 3.5rem) 4rem; outline: none; }
.view { animation: enter .22s ease-out both; }
@keyframes enter { from { opacity: 0; } }
.page-top { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; }
.page-top h1, .detail-card h1, .subject-head h1 { margin: .15rem 0 0; font-size: var(--text-heading); line-height: 1.08; letter-spacing: -.035em; }
.eyebrow { margin: 0; color: var(--accent-strong); font-size: var(--text-caption); font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.muted { color: var(--muted); }

.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; border: 1px solid var(--accent); border-radius: 13px; padding: .65rem 1rem; background: var(--accent); color: var(--on-accent); font-size: var(--text-secondary); font-weight: 700; text-decoration: none; }
.button:hover { background: var(--accent-strong); }
.button.secondary { background: var(--panel); border-color: var(--line); color: var(--ink); }
.button.secondary:hover { background: var(--hover); }
.button.completed { background: var(--done); border-color: var(--done); color: var(--done-ink); }
.button.wide { width: 100%; }
.text-button, .text-link, .back-button { border: 0; background: transparent; color: var(--accent-strong); }
.text-button { padding-inline: .4rem; }
.text-link { min-height: 44px; display: inline-flex; align-items: center; padding: .5rem; font-size: var(--text-secondary); font-weight: 700; }
.back-button { min-height: 44px; display: inline-flex; align-items: center; gap: .4rem; margin: 0 0 1.2rem; padding: .4rem 0; color: var(--muted); }
.icon-button { width: 44px; height: 44px; display: grid; place-items: center; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); color: var(--ink); }
.icon-button span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

.overview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; margin-bottom: 1.25rem; }
.metric-card { min-height: 104px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: .35rem .8rem; padding: 1rem; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); }
.metric-card > span { font-size: var(--text-secondary); }
.metric-card > strong { grid-row: 1 / 3; grid-column: 2; margin: 0; font-size: 2.5rem; line-height: .8; letter-spacing: -.07em; }
.metric-card small { color: var(--muted); align-self: start; }
.accent-card { background: var(--accent); border-color: var(--accent); color: var(--on-accent); transform: rotate(-.35deg); box-shadow: 0 12px 32px rgb(80 86 239 / 18%); }
.accent-card small { color: rgb(255 255 255 / 82%); }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin: 1.3rem 0 .65rem; }
.section-heading h2, .files h2, .settings-card h2, .admin-panel > h2 { margin: 0; font-size: 1.05rem; letter-spacing: -.02em; }

.assignment-list { display: grid; gap: .65rem; }
.assignment-card { display: grid; grid-template-columns: 48px minmax(0, 1fr); padding: .85rem 1rem .85rem .55rem; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); transition: opacity .15s, border-color .15s; }
.assignment-card.is-done { opacity: .65; }
.assignment-card.is-done .assignment-open strong { text-decoration: line-through; }
.complete-control { position: relative; min-width: 44px; min-height: 44px; display: grid; place-items: center; cursor: pointer; }
.complete-control input { appearance: none; width: 1.35rem; height: 1.35rem; border: 2px solid var(--line); border-radius: 7px; background: var(--bg); }
.complete-control input:checked { border-color: var(--done-ink); background: var(--done-ink); }
.complete-control:has(input:checked)::after { content: ""; position: absolute; width: .55rem; height: .3rem; border-left: 2px solid white; border-bottom: 2px solid white; transform: translateY(-1px) rotate(-45deg); pointer-events: none; }
.assignment-content { min-width: 0; }
.assignment-open { width: 100%; min-height: 44px; display: flex; flex-direction: column; align-items: flex-start; gap: .28rem; padding: .1rem 0; border: 0; background: transparent; text-align: left; }
.assignment-open strong { font-size: var(--text-body); }
.assignment-subject { color: var(--muted); font-size: var(--text-caption); }
.assignment-meta { min-height: 32px; display: flex; align-items: center; justify-content: space-between; gap: .5rem 1rem; flex-wrap: wrap; margin-top: .45rem; }
.assignment-applies { color: var(--muted); font-size: var(--text-caption); }
.chip { display: inline-flex; align-items: center; min-height: 28px; padding: .25rem .55rem; border-radius: 999px; background: var(--soft); color: var(--soft-ink); font-size: var(--text-caption); }
.chip.danger { background: var(--danger-bg); color: var(--danger); }
.chip.done { background: var(--done); color: var(--done-ink); }
.assignment-card[aria-busy="true"] .complete-control { cursor: wait; }
.chip.warm { background: var(--warm); color: var(--warm-ink); }
.file-count { display: inline-flex; align-items: center; gap: .2rem; color: var(--muted); font-size: var(--text-caption); }
.file-count svg { width: .9rem; height: .9rem; }
.full-list { max-width: 760px; }

.lesson-list { display: grid; gap: .55rem; }
.lesson-slot { overflow: clip; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); }
.lesson-slot > summary { min-height: 64px; display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; align-items: center; gap: .75rem; padding: .65rem .85rem; cursor: pointer; list-style: none; }
.lesson-slot > summary::-webkit-details-marker { display: none; }
.slot-summary { min-width: 0; display: flex; flex-direction: column; gap: .2rem; }
.slot-summary small { color: var(--muted); font-size: var(--text-caption); }
.lesson-slot[open] > summary { border-bottom: 1px solid var(--line); }
.lesson-variants { display: grid; }
.lesson-variant { padding: .75rem .85rem; border-bottom: 1px solid var(--line); }
.lesson-variant:last-child { border-bottom: 0; }
.lesson-open { width: 100%; min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: .7rem; padding: 0; border: 0; background: transparent; text-align: left; }
.lesson-facts { display: flex; align-items: center; flex-wrap: wrap; gap: .35rem .7rem; color: var(--muted); font-size: var(--text-secondary); }
.subgroup-choice { margin-top: .55rem; }
.lesson-card { width: 100%; min-height: 84px; display: grid; grid-template-columns: 42px minmax(0, 1fr) minmax(150px, .55fr) 24px; align-items: center; gap: .8rem; padding: .85rem 1rem; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); text-align: left; }
.lesson-card:hover { border-color: var(--accent); }
.slot { display: grid; place-items: center; width: 2.2rem; height: 2.2rem; border-radius: 10px; background: var(--lime); color: var(--lime-ink); font-weight: 850; }
.lesson-main, .lesson-side { min-width: 0; display: flex; flex-direction: column; gap: .3rem; }
.lesson-main strong { font-size: 1rem; }
.lesson-main small, .lesson-side small, .lesson-side { color: var(--muted); font-size: var(--text-secondary); }
.lesson-side { text-align: right; }
.source-line { margin: 1rem 0; color: var(--muted); font-size: var(--text-caption); }

.week-block { margin: 0 0 1.4rem; }
.week-toolbar { display: flex; align-items: center; justify-content: space-between; gap: .8rem; margin-bottom: .75rem; }
.week-toolbar > strong { font-size: var(--text-secondary); text-align: center; }
.week-strip { display: grid; grid-template-columns: repeat(7, minmax(44px, 1fr)); gap: .4rem; overflow-x: auto; scrollbar-width: thin; padding: 2px; }
.day-button { min-width: 44px; min-height: 78px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .55rem; border: 1px solid var(--line); border-radius: 15px; background: var(--panel); color: var(--muted); }
.day-button span { font-size: var(--text-caption); text-transform: uppercase; }
.day-button strong { font-size: 1.2rem; }
.day-button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); transform: translateY(-2px); box-shadow: 0 8px 20px rgb(80 86 239 / 18%); }

.filters { display: flex; flex-wrap: wrap; gap: .45rem; }
.filters button { min-height: 44px; padding: .55rem .75rem; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); color: var(--muted); font-size: var(--text-secondary); }
.filters button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--panel); }
.filter-row { display: flex; align-items: center; justify-content: space-between; gap: .7rem; flex-wrap: wrap; margin-bottom: 1.2rem; }
.filter-row select { min-height: 44px; max-width: 260px; padding: .5rem 2rem .5rem .7rem; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); font-size: var(--text-secondary); }

.empty-state, .error-state { padding: 2.2rem 1.4rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); text-align: center; }
.overview .empty-state { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: .25rem .65rem; padding: 1rem; text-align: left; }
.overview .empty-state > svg { grid-row: 1 / 3; width: 1.5rem; height: 1.5rem; }
.overview .empty-state h2 { margin: 0; font-size: var(--text-body); }
.overview .empty-state p { grid-column: 2; margin: 0; font-size: var(--text-secondary); }
.empty-state > svg, .error-state > svg { width: 2.2rem; height: 2.2rem; color: var(--accent); }
.empty-state h2, .error-state h2 { margin: .8rem 0 .35rem; font-size: 1.1rem; }
.empty-state p, .error-state p { margin: 0 auto 1rem; max-width: 42rem; color: var(--muted); line-height: 1.6; }
.error-state > svg { color: var(--danger); }
.view-loader { min-height: 240px; display: flex; align-items: center; justify-content: center; gap: .7rem; color: var(--muted); }
.notice { display: flex; align-items: flex-start; gap: .6rem; margin: .7rem 0; padding: .8rem 1rem; border-radius: 14px; background: var(--soft); color: var(--soft-ink); font-size: var(--text-secondary); line-height: 1.5; }
.notice-error { background: var(--danger-bg); color: var(--danger); }
.offline-banner { position: sticky; top: 0; z-index: 5; min-height: 42px; display: flex; align-items: center; justify-content: center; gap: .5rem; padding: .5rem 1rem; background: var(--warm); color: var(--warm-ink); font-size: .75rem; }

.subject-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.8rem; }
.subject-cover { width: 70px; height: 70px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 20px; background: var(--soft); color: var(--soft-ink); font-size: 1.25rem; font-weight: 850; }
.subject-head h1 { font-size: var(--text-heading); }
.subject-head p:last-child { margin: .5rem 0 0; }
.detail-card { max-width: 720px; padding: clamp(1.25rem, 4vw, 2.2rem); border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); }
.detail-card h1 { font-size: var(--text-heading); line-height: 1.08; }
.deadline { display: inline-flex; margin: 1rem 0 1.5rem; padding: .4rem .7rem; border-radius: 999px; background: var(--warm); color: var(--warm-ink); font-size: var(--text-secondary); }
.assignment-scope { margin: -.8rem 0 1.5rem; color: var(--muted); font-size: var(--text-secondary); }
.assignment-body { white-space: pre-wrap; font-size: 1rem; line-height: 1.75; }
.files { margin: 1.8rem 0; }
.files h2 { margin-bottom: .7rem; }
.file-row { min-height: 64px; display: flex; align-items: center; gap: .8rem; margin: .45rem 0; padding: .7rem .8rem; border: 1px solid var(--line); border-radius: 14px; background: var(--bg); text-decoration: none; }
.file-row > span { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: .25rem; }
.file-row strong { text-overflow: ellipsis; overflow: hidden; }
.file-row small { color: var(--muted); }
.byline { color: var(--muted); font-size: var(--text-caption); }
.detail-actions, .row-actions { display: flex; flex-wrap: wrap; gap: .55rem; }

.editor-form, .settings-card { max-width: 720px; margin: 0 0 1rem; padding: 1.25rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.editor-form { padding-bottom: calc(5rem + env(safe-area-inset-bottom)); }
.editor-extra { margin: .65rem 0 1rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.editor-extra > summary { min-height: 48px; display: flex; align-items: center; color: var(--accent-strong); cursor: pointer; font-weight: 700; }
.publish-bar { position: sticky; bottom: calc(.65rem + env(safe-area-inset-bottom)); z-index: 4; width: 100%; box-shadow: 0 12px 30px rgb(0 0 0 / 18%); }
.field { display: block; margin-bottom: 1rem; color: var(--muted); font-size: var(--text-secondary); }
.field > span { display: block; margin-bottom: .45rem; }
.field input, .field textarea, .field select, .copy-value { width: 100%; min-height: 48px; padding: .7rem .8rem; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--ink); font-size: max(1rem, 16px); }
.field textarea { min-height: 150px; resize: vertical; line-height: 1.5; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
.upload-field { position: relative; min-height: 72px; display: flex; align-items: center; justify-content: center; gap: .6rem; margin: .3rem 0 1rem; border: 1px dashed var(--line); border-radius: 14px; color: var(--muted); cursor: pointer; }
.upload-field { width: 100%; background: transparent; font: inherit; }
.selected-file { display: flex; align-items: center; gap: .6rem; margin-bottom: .5rem; }
.selected-file > span { flex: 1; min-width: 0; overflow-wrap: anywhere; font-size: .85rem; }
.selected-file > svg { width: 20px; flex: 0 0 auto; }
.subject-add { margin-bottom: 1.4rem; }
.upload-progress { display: grid; grid-template-columns: minmax(0, 1fr) minmax(100px, 1fr) auto; align-items: center; gap: .6rem; margin: .4rem 0; font-size: .75rem; }
.upload-progress progress { width: 100%; accent-color: var(--accent); }
.error-text { color: var(--danger); }
.form-status { margin: .7rem 0; }
.settings-card h2, .settings-card h3 { margin: 0 0 1rem; }
.settings-card h3 { font-size: .95rem; }
.settings-card p { color: var(--muted); font-size: var(--text-secondary); line-height: 1.5; }
.compact-card { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.compact-card h2, .compact-card h3, .compact-card p { margin: 0; }
.settings-stack { display: grid; gap: .75rem; max-width: 900px; }
.settings-index { display: grid; gap: .55rem; max-width: 760px; }
.settings-link { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .8rem 1rem; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); text-align: left; }
.settings-link > span { display: flex; flex-direction: column; gap: .25rem; }
.settings-link small { color: var(--muted); }
.inline-form { display: flex; align-items: end; flex-wrap: wrap; gap: .55rem; }
.inline-form h2 { flex-basis: 100%; }
.inline-form input, .roster-panel input, .person-card input, .person-card select, .roster-row select, .audience-choices input { min-height: 46px; min-width: 0; flex: 1; padding: .65rem .75rem; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--ink); font-size: max(1rem, 16px); }
.people-list, .subgroup-list, .mapping-list { display: grid; gap: .5rem; }
.person-card, .roster-row { display: grid; grid-template-columns: minmax(150px, 1fr) minmax(180px, 1fr) auto auto; align-items: center; gap: .55rem; padding: .7rem; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.person-card > div:first-child, .roster-row > span { display: flex; flex-direction: column; gap: .2rem; }
.person-card small, .roster-row small, .subgroup-card small { color: var(--muted); }
.temporary-credentials { display: flex; align-items: center; flex-wrap: wrap; gap: .65rem; padding: 1rem; border: 2px solid var(--accent); border-radius: 16px; background: var(--soft); }
.temporary-credentials strong { flex-basis: 100%; }
.temporary-credentials code { padding: .5rem .7rem; border-radius: 8px; background: var(--panel); font-size: 1rem; user-select: all; }
.subgroup-card { display: grid; grid-template-columns: minmax(170px, 1fr) minmax(120px, auto) auto; align-items: center; gap: .55rem; padding: .75rem; border: 1px solid var(--line); border-radius: 14px; }
.subgroup-card > div { display: flex; flex-direction: column; gap: .2rem; }
.teacher-groups-form { display: grid; gap: .5rem; margin: .7rem 0; }
.teacher-group-row { min-height: 58px; display: grid; grid-template-columns: minmax(180px, 1fr) 100px; align-items: center; gap: .7rem; padding: .65rem .75rem; border: 1px solid var(--line); border-radius: 14px; background: var(--bg); }
.teacher-group-row > span { min-width: 0; display: flex; flex-direction: column; gap: .15rem; }
.teacher-group-row small { color: var(--muted); }
.teacher-group-row input { width: 100%; min-height: 44px; padding: .6rem .7rem; border: 1px solid var(--line); border-radius: 11px; background: var(--panel); color: var(--ink); font-size: max(1rem, 16px); }
.teacher-groups-form > .button { justify-self: start; }
.self-choice-details { margin: .65rem 0; border: 1px solid var(--line); border-radius: 14px; }
.self-choice-details > summary { min-height: 46px; display: flex; align-items: center; padding: .55rem .75rem; cursor: pointer; font-size: var(--text-secondary); font-weight: 750; }
.self-choice-details > .subgroup-list { padding: 0 .65rem .65rem; }
.self-choice-details > .text-button { margin: 0 .65rem .65rem; }
.reauth-compact { margin: .65rem 0; border: 1px solid var(--line); border-radius: 14px; }
.reauth-compact > summary { min-height: 46px; display: flex; align-items: center; padding: .55rem .75rem; color: var(--accent-strong); cursor: pointer; font-size: var(--text-secondary); font-weight: 750; }
.reauth-compact > .settings-card { margin: 0; padding: .75rem; border: 0; border-top: 1px solid var(--line); border-radius: 0 0 14px 14px; }
.reauth-compact > .settings-card h3 { margin-bottom: .35rem; }
.reauth-compact > .settings-card p { margin: 0 0 .65rem; }
.roster-panel { display: grid; gap: .65rem; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.roster-panel h3 { margin: 0; }
.mapping-variant { display: grid; gap: .45rem; padding: .8rem; border-bottom: 1px solid var(--line); }
.mapping-variant:last-child { border-bottom: 0; }
.mapping-choices { display: flex; flex-wrap: wrap; gap: .4rem 1rem; }
.audience-field { margin-bottom: .8rem; }
.audience-choices, .choice-results { display: grid; gap: .35rem; }
.choice-row { min-height: 44px; padding: .55rem .7rem; border: 1px solid var(--line); border-radius: 11px; background: var(--bg); color: var(--ink); text-align: left; }
.selected-chips { display: flex; flex-wrap: wrap; gap: .35rem; margin: .5rem 0; }
.selection-chip { display: inline-flex; align-items: center; gap: .25rem; min-height: 36px; padding: .2rem .3rem .2rem .65rem; border-radius: 999px; background: var(--soft); color: var(--soft-ink); }
.chip-remove { min-width: 32px; min-height: 32px; border: 0; border-radius: 50%; background: transparent; color: inherit; font-size: 0; }
.chip-remove::before { content: "×"; font-size: 1.1rem; }
.schedule-visibility { margin: 0 0 .7rem; }
.password-gate { max-width: 720px; margin-inline: auto; }
.admin-panel { max-width: 900px; margin-top: 2.5rem; padding-top: 1.7rem; border-top: 2px solid var(--line); }
.admin-panel > h2 { margin: .3rem 0 1.2rem; font-size: 1.5rem; }
.admin-user { display: grid; grid-template-columns: minmax(130px, 1fr) 120px auto auto; align-items: center; gap: .7rem; padding: .8rem 0; border-bottom: 1px solid var(--line); }
.admin-user > div:first-child { min-width: 0; display: flex; flex-direction: column; }
.admin-user small { color: var(--muted); }
.admin-user select { min-height: 44px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); font-size: max(1rem, 16px); }
.admin-user .form-status { grid-column: 1 / -1; }
.check-label { min-height: 44px; display: inline-flex; align-items: center; gap: .4rem; font-size: var(--text-secondary); }
.check-label input { width: 1.2rem; height: 1.2rem; accent-color: var(--accent); }
.copy-value { font-size: max(1rem, 16px); }
.audit-list { list-style: none; margin: 0; padding: 0; }
.audit-list li { display: grid; grid-template-columns: 130px 150px minmax(0, 1fr); gap: .6rem; padding: .65rem 0; border-bottom: 1px solid var(--line); font-size: .75rem; }
.audit-list li > span:first-child { color: var(--muted); }

.auth-shell { position: relative; min-height: 100vh; min-height: 100dvh; display: grid; grid-template-columns: minmax(240px, .8fr) minmax(320px, 520px); align-items: center; gap: clamp(2rem, 8vw, 8rem); padding: clamp(1.3rem, 6vw, 6rem); overflow: hidden; background: var(--bg); }
.auth-brand { position: relative; z-index: 1; display: flex; align-items: center; gap: 1rem; }
.auth-mark { width: clamp(72px, 11vw, 130px); height: clamp(72px, 11vw, 130px); display: grid; place-items: center; border-radius: 32%; background: var(--accent); color: white; font-size: 2rem; font-weight: 900; transform: rotate(-7deg); box-shadow: 0 20px 55px rgb(80 86 239 / 28%); }
.auth-brand div { display: flex; flex-direction: column; gap: .3rem; }
.auth-brand strong { font-size: 3rem; letter-spacing: -.07em; line-height: 1; }
.auth-brand div span { color: var(--muted); }
.auth-card { position: relative; z-index: 2; padding: clamp(1.5rem, 4vw, 2.5rem); border: 1px solid var(--line); border-radius: 28px; background: var(--panel); box-shadow: var(--shadow); }
.auth-card h1 { margin: .3rem 0 .7rem; font-size: var(--text-heading); letter-spacing: -.04em; }
.auth-copy { margin: 0 0 1.6rem; color: var(--muted); line-height: 1.5; }
.auth-orbit { position: absolute; right: -8vw; bottom: -15vw; width: 36vw; height: 36vw; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--soft-ink); opacity: .55; }
.auth-orbit svg { width: 20%; height: 20%; }

.mobile-nav { display: none; }
.toast { position: fixed; right: 1rem; bottom: 1rem; z-index: 20; max-width: min(420px, calc(100vw - 2rem)); padding: .9rem 1rem; border: 1px solid var(--line); border-radius: 14px; background: var(--done); color: var(--done-ink); box-shadow: var(--shadow); }
.toast[data-tone="error"] { border-color: var(--danger); background: var(--danger-bg); color: var(--danger); }

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 170px minmax(0, 1fr); }
  .sidebar { padding-inline: .7rem; }
  .lesson-card { grid-template-columns: 42px minmax(0, 1fr) 24px; }
  .lesson-side { grid-column: 2; text-align: left; }
  .admin-user { grid-template-columns: 1fr 120px; }
  .admin-user .row-actions, .admin-user .check-label { grid-column: auto; }
}

@media (max-width: 1023px) {
  .app-shell { display: block; }
  .sidebar { display: none; }
  .topbar { min-height: 66px; padding: .65rem .9rem; }
  .context-label { display: none; }
  .mobile-brand { display: flex; flex-direction: column; min-width: 0; font-size: 1.25rem; }
  .theme-button { width: 44px; height: 44px; padding: 0; justify-content: center; }
  .theme-button span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .content { min-height: calc(100dvh - 66px); padding: 1rem .9rem calc(var(--mobile-nav-reserve) + 1.35rem + env(safe-area-inset-bottom)); }
  .mobile-nav { position: fixed; left: .55rem; right: .55rem; bottom: calc(.45rem + env(safe-area-inset-bottom) + var(--keyboard-inset)); z-index: 10; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .15rem; padding: .3rem; border: 1px solid var(--line); border-radius: 17px; background: color-mix(in srgb, var(--panel) 94%, transparent); box-shadow: 0 10px 36px rgb(0 0 0 / 16%); backdrop-filter: blur(16px); }
  .mobile-nav button { min-height: 54px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .2rem; border-radius: 12px; font-size: var(--text-caption); }
  .mobile-nav button svg { width: 1.2rem; height: 1.2rem; }
  .mobile-nav button[aria-current="page"] { background: var(--soft); color: var(--soft-ink); }
  .page-top { align-items: center; margin-bottom: 1rem; }
  .page-top h1 { font-size: 1.625rem; }
  .overview-grid { gap: .65rem; }
  .metric-card { min-height: 92px; padding: .8rem; }
  .metric-card > strong { font-size: 2.35rem; }
  .lesson-card { grid-template-columns: 38px minmax(0, 1fr) 18px; gap: .55rem; padding: .75rem; }
  .lesson-side { grid-column: 2; }
  .week-strip { gap: .28rem; }
  .day-button { min-height: 72px; border-radius: 13px; }
  .filter-row select { width: 100%; max-width: none; }
  .field-grid { grid-template-columns: 1fr; gap: 0; }
  .detail-card { padding: 1.1rem; }
  .workspace.editor-mode .mobile-nav { display: none; }
  .workspace.editor-mode .content { padding-bottom: calc(var(--editor-cta-reserve) + var(--keyboard-inset) + 1.5rem + env(safe-area-inset-bottom)); }
  .editor-form { padding-bottom: calc(1rem + env(safe-area-inset-bottom)); }
  .publish-bar { position: fixed; right: .9rem; bottom: calc(.45rem + env(safe-area-inset-bottom) + var(--keyboard-inset)); left: .9rem; width: auto; }
  .assignment-body { font-size: 1rem; }
  .admin-user { grid-template-columns: 1fr; }
  .person-card, .subgroup-card { grid-template-columns: 1fr; }
  .roster-row { grid-template-columns: minmax(0, 1fr) auto; }
  .roster-row > span { grid-column: 1 / -1; }
  .roster-row > select { grid-column: 1; }
  .roster-row > .button { grid-column: 2; }
  .teacher-group-row { grid-template-columns: 1fr 92px; }
  .admin-user .row-actions, .admin-user .check-label { grid-column: 1; }
  .audit-list li { grid-template-columns: 1fr; gap: .2rem; }
  .auth-shell { grid-template-columns: 1fr; align-content: center; gap: 2rem; padding: 1.1rem; }
  .auth-brand { justify-content: center; }
  .auth-mark { width: 68px; height: 68px; border-radius: 22px; }
  .auth-brand strong { font-size: 2rem; }
  .auth-brand div span { font-size: .78rem; }
  .auth-card { padding: 1.35rem; border-radius: 22px; }
  .toast { bottom: calc(var(--mobile-nav-reserve) + 1.1rem + env(safe-area-inset-bottom)); }
  .workspace.editor-mode .toast { bottom: calc(.75rem + env(safe-area-inset-bottom) + var(--keyboard-inset)); }
}

@media (min-width: 1024px) {
  .mobile-nav { display: none; }
}

@media (max-width: 380px) {
  .overview-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: 82px; }
  .week-strip { grid-template-columns: repeat(7, 44px); }
  .filters { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
  .filters button:first-child { grid-column: 1 / -1; }
  .subject-cover { width: 58px; height: 58px; }
}

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

.local-group-choices { display: flex; flex-wrap: wrap; gap: .75rem; margin: .75rem 0; }
.local-group-choice { flex: 1 1 140px; display: grid; gap: .5rem; padding: .85rem; border: 1px solid var(--line); border-radius: 14px; }

.editor-fields { min-width: 0; margin: 0; padding: 0; border: 0; }
.editor-fields:disabled { opacity: .72; }
.homework-group-list { display: grid; gap: 1.5rem; margin: 1rem 0; }
.homework-group-block { min-width: 0; margin: 0; padding: 1.1rem; border: 1px solid var(--line); border-radius: 18px; background: var(--bg); }
.homework-group-block legend { padding: 0 .4rem; color: var(--soft-ink); font-weight: 750; font-size: var(--text-body); }
.group-block-top { display: flex; align-items: flex-start; justify-content: space-between; gap: .6rem; margin-bottom: .75rem; }
.group-block-top p, .group-block-top h2 { margin: 0; }
.group-block-top .text-button { flex-shrink: 0; min-height: 32px; padding: .2rem; font-size: var(--text-caption); }
.homework-group-block .field input, .homework-group-block .field select, .homework-group-block .field textarea { background: var(--panel); }
.inline-homework-groups > .muted { max-width: 42ch; }
.add-homework-group { width: 100%; }
.people-picker { display: grid; gap: .6rem; margin-bottom: 1rem; }
.people-picker > input, .managed-group-roster > input { width: 100%; min-height: 48px; padding: .7rem .8rem; border: 1px solid var(--line); border-radius: 12px; background: var(--bg); color: var(--ink); font-size: max(1rem, 16px); }
.choice-results { max-height: 240px; overflow-y: auto; }
.choice-results:empty { display: none; }
.homework-group-block textarea { min-height: 130px; }
.group-files .upload-field { min-height: 58px; margin-bottom: .5rem; }
.group-files .selected-file { min-width: 0; }
.group-files .selected-file > span { min-width: 0; overflow-wrap: anywhere; }
.lesson-context-note { margin: -.2rem 0 1.2rem; color: var(--muted); font-size: var(--text-secondary); }
.lesson-detail-facts { max-width: 720px; margin-bottom: 1rem; padding: 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.lesson-detail-facts p { margin: .4rem 0 0; }
.lesson-detail-view > h2, .assignment-set-view > h2 { margin-top: 1.7rem; }
.assignment-set-list { display: grid; gap: .6rem; margin-bottom: 1rem; }
.assignment-set-summary, .lesson-assignment-summary { width: 100%; min-height: 60px; padding: 1rem; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); text-align: left; font-weight: 650; }
.assignment-set-summary { border-left: 3px solid var(--accent); }
.assignment-set-summary:hover, .lesson-assignment-summary:hover { background: var(--hover); }
.published-homework-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 1rem; }
.published-group { min-width: 0; padding: 1.2rem; border: 1px solid var(--line); border-radius: 20px; background: var(--panel); }
.published-group.is-selected { border-color: var(--accent); }
.published-group h2 { font-size: 1.25rem; }
.published-group > .button { width: 100%; margin-top: .6rem; }
.group-management { margin-top: 1.1rem; }
.group-management summary { color: var(--soft-ink); cursor: pointer; }
.group-policy-form { padding-top: 1rem; }
.managed-group-roster { margin-top: 2rem; }
@media (max-width: 480px) {
  .homework-group-block { padding: .9rem; }
  .group-block-top { flex-wrap: wrap; }
  .published-group { padding: 1rem; }
}

.subgroup-roster { border-top: 0; padding-top: 0; gap: 1.25rem; }
.subgroup-student-picker { display: grid; gap: .5rem; min-width: 0; }
.subgroup-student-picker > h3 { margin: 0; }
.subgroup-student-picker > input[type="search"] { width: 100%; }
.subgroup-student-list { display: grid; gap: .35rem; }
.subgroup-student-button { width: 100%; min-height: 44px; padding: .65rem .8rem; display: flex; align-items: center; justify-content: space-between; gap: .7rem; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); text-align: left; font: inherit; }
.subgroup-student-button > span { display: grid; gap: .15rem; min-width: 0; overflow-wrap: anywhere; }
.subgroup-student-button small { color: var(--muted); font-size: var(--text-secondary); }
.subgroup-student-button > svg { width: 18px; height: 18px; flex: 0 0 18px; color: var(--accent); }
.subgroup-student-button[aria-pressed="true"] { border-color: var(--accent); background: var(--soft); }
.subgroup-student-button:hover:not(:disabled) { border-color: var(--accent); }
.subgroup-student-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.settings-card .check-label input[type="checkbox"] { min-width: 1.2rem; min-height: 1.2rem; width: 1.2rem; height: 1.2rem; padding: 0; flex: 0 0 auto; }

.person-editor { display: block; padding: 0; min-width: 0; }
.person-summary { min-height: 64px; padding: .8rem 1rem; display: flex; align-items: center; justify-content: space-between; gap: .75rem; cursor: pointer; list-style: none; }
.person-summary::-webkit-details-marker { display: none; }
.person-summary > span:first-child { display: grid; gap: .2rem; min-width: 0; overflow-wrap: anywhere; }
.person-edit-label { color: var(--muted); font-size: var(--text-secondary); flex-shrink: 0; }
.person-fields { display: grid; gap: .75rem; padding: 0 1rem 1rem; }
.person-fields .field { margin: 0; }
.person-fields .check-label { justify-content: flex-start; }
.person-fields input[type="checkbox"] { flex: 0 0 20px; min-width: 20px; min-height: 20px; width: 20px; height: 20px; padding: 0; }
.person-fields .row-actions { display: grid; grid-template-columns: 1fr 1fr; }
.person-fields .row-actions .button { width: 100%; min-width: 0; padding-inline: .5rem; }
.person-summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 14px; }

.account-create { padding: 0; }
.account-create > summary { min-height: 48px; padding: .8rem 1rem; cursor: pointer; font-weight: 700; }
.account-create > .account-form { padding: 0 1rem 1rem; }

.person-role-fields { display: grid; gap: .5rem; padding-bottom: .75rem; border-bottom: 1px solid var(--line); }
.person-role-fields select { width: 100%; }
.person-role-fields > .button { width: 100%; }