html, body { background: var(--bg); color: var(--text); }
body { background-image: none; }
[hidden] { display: none !important; }
button, input, textarea, select { font-family: inherit; }
button, .attach-button { min-height: 40px; }
button, a, input, textarea, select, summary { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
input:not([type="checkbox"]):not([type="range"]), textarea, select { background: var(--paper); color: var(--text); border-color: var(--control-border); }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: 1; }
input[type="checkbox"], input[type="range"] { accent-color: var(--accent); }
a { color: var(--accent); text-underline-offset: 3px; }
button { background: var(--paper); color: var(--text); border-color: var(--line); }
button:hover:not(:disabled) { background: var(--selection); color: var(--text); }
button.primary, button.send-button { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
button.primary:hover:not(:disabled), button.send-button:hover:not(:disabled) { background: var(--accent); color: var(--on-accent); filter: brightness(.94); transform: none; }
button:disabled { cursor: not-allowed; }
button.danger, .danger-button, .error, #idea-error { color: var(--red); }
body > header, .topbar, .top { background: var(--paper); color: var(--text); border-color: var(--line); }
.brand, .brand-copy, .topbar a { color: var(--text); }
.brand small, .eyebrow { display: none; }
.theme-control { display: flex; align-items: center; gap: 6px; font-size: .8rem; font-weight: 400; margin: 0; flex-shrink: 0; }
.theme-control select { width: auto; margin: 0; padding: 6px; font-size: .8rem; border-radius: 8px; min-height: 36px; }
.surface, .card, .tool-card, .idea-row, .registry-row, .history-row, .panel, .problem-card { background: var(--paper); border-color: var(--line); color: var(--text); }
.surface p, .tool-card p, .hero p, .muted, small, footer { color: var(--muted); }
.hero { margin: 0 0 20px; }
.hero h1, main > h1 { font-size: 1.65rem; line-height: 1.5; margin: 8px 0; letter-spacing: 0; }
.hero p { margin: 6px 0; }
pre, .speech-chunk pre { background: var(--panel-strong); color: var(--text); }
dialog { background: var(--paper); color: var(--text); border-color: var(--line); box-shadow: var(--shadow); }
dialog::backdrop { background: #10291f88; backdrop-filter: none; }
.dialog-heading { position: sticky; top: -28px; background: var(--paper); padding: 10px 0; z-index: 1; }
.badge, .local-badge, .tag, .chips .selected { background: var(--selection); color: var(--accent); border-color: var(--line); }
.local-badge { white-space: normal; }
.view-tabs .selected, :root .view-tabs button.selected:hover, .tabs .selected { background: var(--accent); color: var(--on-accent); }
.tabs, .view-tabs { gap: 8px; }
.searchbar { background: var(--paper); border-color: var(--control-border); box-shadow: none; }
.searchbar input { color: var(--text); }
.category-button { background: var(--panel-strong); }
.tool-symbol { background: var(--selection); }
.tool-card .launch { background: var(--paper); color: var(--accent); }
.favorite { color: var(--yellow); }
.tool-meta, .tool-bottom span, .section-heading small { font-size: .8rem; color: var(--muted); }
.tool-card p, .hero p { font-size: .9rem; }
.empty { background: transparent; border-style: dashed; color: var(--muted); }
#notice:not(:empty) { background: var(--text); color: var(--bg); bottom: auto; top: 12px; box-shadow: var(--shadow); }
.compact-tool-list { display: grid; gap: 0; border-block: 1px solid var(--line); }
.compact-tool { display: flex; align-items: center; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.compact-tool:last-child { border-bottom: 0; }
.compact-tool > div { flex: 1; min-width: 0; }
.compact-tool p { margin: 4px 0 0; font-size: .85rem; }
.compact-tool h3 { font-size: 1rem; }
.compact-tool button { flex-shrink: 0; }
.ui-help { color: var(--muted); font-size: .85rem; line-height: 1.6; }
.settings-search { display: block; margin: 12px 0; }
.settings-search input { width: 100%; padding: 10px; border: 1px solid var(--control-border); border-radius: 8px; }
.settings-filtered { display: none !important; }
.setting-match { outline: 1px solid var(--accent); outline-offset: 4px; }
.review-switch { display: none; }
.stat, .steps span, .pill, .drop-zone, .actions a, th { background: var(--panel-strong); color: var(--text); border-color: var(--line); }
.steps span, summary, .hint-row span, .bubble .speaker, .list small { color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--selection); color: var(--accent); }
.bubble { background: var(--paper); border-color: var(--line); }
.bubble.student { background: var(--selection); border-color: var(--line); }
.learner header, .learner .composer, .learner .problem-card { background: var(--paper); }
.learner .problem-card { padding: 16px 20px; }
.learner .problem-card summary { color: var(--text); }
.learner .problem-card h1 { display: inline; font-size: 1.2rem; margin-left: 10px; }
.learner .bubble p { font-size: 1.125rem; line-height: 1.85; }
.learner .bubble.student { background: var(--selection); }
.learner .bubble:not(.student) { background: transparent; border: 0; }
.learner .learning-tools { gap: 10px; padding: 8px 0; }
.learner .composer { border-radius: 12px; padding: 16px; }
.learner .composer .actions { margin: 8px 0; }
.learner #learn-messages { max-height: 48dvh; min-height: 180px; }
.learner #learn-notice:empty { display: none; }
.speech-columns .surface, .dictionary-section { padding: 24px; }
.speech-columns h2, .dictionary-section h2 { font-size: 1.2rem; }
.speech-chunk, .dictionary-row { background: var(--paper); border-color: var(--line); }
.daily-report { max-width: 760px; margin: 0 auto; font-size: 1rem; line-height: 1.85; color: var(--text); }
.daily-report h2 { margin-top: 28px; }
.daily-report h3 { margin-top: 20px; }
.daily-report p { max-height: none; font-size: 1rem; overflow: visible; }
.daily-report a { overflow-wrap: anywhere; }
@media (max-width: 760px) {
  .review-switch { display: flex; gap: 8px; margin: 12px 0; }
  .review-switch button { flex: 1; padding: 8px; }
  .review-switch [aria-pressed="true"] { background: var(--accent); color: var(--on-accent); }
  .review-grid { display: block; }
  .review-grid:not([data-mobile-view]) > :not(.answer-card), .review-grid[data-mobile-view="answer"] > :not(.answer-card), .review-grid[data-mobile-view="rubric"] > :not(.rubric-card), .review-grid[data-mobile-view="score"] > :not(.score-card) { display: none; }
  .review-toolbar { position: sticky; top: 0; z-index: 2; background: var(--paper); }
  .learner .learn-main { padding: 12px; }
  .learner .learning-tools { display: flex; flex-wrap: wrap; }
  .learner .learning-tools label { margin: 0; }
  .learner #learn-messages { max-height: 40dvh; }
  button, .attach-button, .theme-control select { min-height: 44px; }
  body > header, .topbar { gap: 10px; flex-wrap: wrap; padding: 12px 16px; height: auto; }
  .brand small, .theme-control > span { display: none; }
  .brand { font-size: 1.1rem; }
  .theme-control { margin-left: auto; }
  .theme-control select { max-width: 78px; }
  label, .ui-help { font-size: .875rem; }
  input:not([type="checkbox"]):not([type="range"]), textarea, select { font-size: 1rem; }
  .hero h1, main > h1 { font-size: 1.4rem; }
  .compact-tool { gap: 10px; }
  .category-button, .view-tabs button { font-size: .875rem; }
  .dialog-heading { top: -20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
.remote-entry { font-size: .875rem; padding: 10px; }
.topbar { flex-wrap: wrap; height: auto; min-height: 72px; }
.topbar nav { flex-wrap: wrap; min-width: 0; }
.remote-session-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; margin: 16px; padding: 12px; background: var(--paper); color: var(--text); border: 1px solid var(--line); border-radius: 12px; }
.remote-session-bar span { font-size: .85rem; }
.remote-session-bar button { min-height: 44px; padding: 8px 14px; }
.aihub-private > :not(#privacy-screen) { visibility: hidden !important; }
#privacy-screen:not([hidden]) { position: fixed; inset: 0; z-index: 2147483647; display: flex; flex-direction: column; justify-content: center; align-items: center; margin: 0; width: 100%; height: 100%; max-width: none; max-height: none; border: 0; border-radius: 0; padding: 24px; background: var(--paper); color: var(--text); text-align: center; visibility: visible; }
#privacy-screen button { min-height: 48px; padding: 12px 20px; }
.tool-guide-trigger { min-height: 44px; padding: 8px 12px; white-space: normal; font: inherit; }
.tool-guide-dialog { box-sizing: border-box; width: min(920px, calc(100vw - 24px)); max-width: calc(100vw - 24px); max-height: 88dvh; padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: var(--paper); color: var(--text); overflow: auto; }
.tool-guide-dialog::backdrop { background: #0008; }
.tool-guide-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.tool-guide-heading h2 { margin: 0; }
.tool-guide-heading button { min-width: 64px; min-height: 44px; }
.tool-guide-dialog label { display: grid; gap: 8px; margin: 16px 0; }
.tool-guide-dialog input { box-sizing: border-box; width: 100%; min-width: 0; min-height: 44px; font: inherit; }
.tool-guide-results { display: grid; gap: 10px; }
.tool-guide-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); gap: 14px; }
.tool-guide-group { padding: 16px; border: 1px solid var(--line); background: var(--paper); border-radius: 14px; min-width: 0; }
.tool-guide-group h3, .tool-guide-group p { margin: 0 0 10px; }
.tool-guide-group p, .tool-guide-help, .tool-guide-home > p { font-size: .85rem; color: var(--muted); line-height: 1.7; }
.tool-guide-entry { display: flex; flex-wrap: wrap; align-items: center; gap: 5px 12px; box-sizing: border-box; min-width: 0; min-height: 48px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); color: var(--text); text-decoration: none; overflow-wrap: anywhere; }
.tool-guide-group .tool-guide-entry + .tool-guide-entry { margin-top: 8px; }
.tool-guide-entry strong { flex: 1 1 auto; font-size: .95rem; }
.tool-guide-entry small { font-size: .75rem; color: var(--muted); }
.tool-guide-entry > span { flex-basis: 100%; font-size: .85rem; }
a.tool-guide-entry:hover { border-color: var(--accent); background: var(--selection); }
.tool-guide-mac { border-style: dashed; background: var(--panel-strong); }
.tool-guide-overview summary { cursor: pointer; min-height: 44px; padding: 12px 0; }
.tool-guide-home { margin: 20px 0 28px; }
.tool-guide-home h2 { margin: 0 0 8px; }
.tool-guide-related { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 12px 0 20px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; }
.tool-guide-related > span { font-size: .8rem; color: var(--muted); }
.tool-guide-related .tool-guide-entry { padding: 8px 12px; flex: 1 1 170px; }
.ui-grading .toolbar label { min-width: 0; max-width: 100%; }
.ui-grading .toolbar #assignment-select { min-width: 0; max-width: 100%; }
@media (max-width: 480px) { .tool-guide-dialog { padding: 16px; } .tool-guide-related { gap: 6px; } .tool-guide-related > span { flex-basis: 100%; } }
.saved-work-pagination { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 8px 0; }
.saved-work-pagination span { font-size: .85rem; color: var(--text-secondary, #59656c); }
.saved-work-pagination button { min-height: 44px; }