/* Coda's visual language across the live workspace. Route, account, and AI
   access state remain owned by the existing app. */

.app-shell {
  --coda-accent: #4563d8;
  --coda-violet: #2e6cc2;
  --coda-tint: #e9edff;
  --coda-edge: rgba(75,100,183,.22);
  --coda-glow: rgba(91,110,244,.13);
  --mc-mint: #e5eaff;
  --mc-teal: #3d57b5;
  --mc-blue: #405dc9;
}
.theme-dark .app-shell {
  --coda-accent: #b5c7ff;
  --coda-violet: #81b6ff;
  --coda-tint: #25365a;
  --coda-edge: rgba(157,182,255,.22);
  --coda-glow: rgba(79,102,239,.17);
  --mc-mint: #26385e;
  --mc-teal: #b5c7ff;
  --mc-blue: #b5c7ff;
}
.app-shell .app-main {
  background: radial-gradient(ellipse at 78% 0%,var(--coda-glow),transparent 54%);
}
.app-shell :is(.app-sidebar,.mc-nav--mobile) { border-color: var(--coda-edge); }
.app-shell .mc-nav__item.is-active {
  color: var(--coda-accent); background: var(--coda-tint); border-color: transparent;
}
.app-shell :is(.page-header h1,.section-heading h2) { letter-spacing: -.035em; }
.app-shell :is(.mc-card,.mc-home-disclosure,.mc-home-progress) { border-color: var(--coda-edge); }
.app-shell .mc-button--primary {
  color: #fff; background: linear-gradient(125deg,#6356d8,#366fc6);
  box-shadow: 0 5px 18px rgba(68,82,190,.18);
}
.app-shell .mc-button--primary:hover:not(:disabled) { background: linear-gradient(125deg,#5546cb,#2b60b3); }
.app-shell :is(button,a,input,textarea,select,summary):focus-visible {
  outline-color: var(--coda-accent);
}
.app-shell :is(.page-header,.study-page-header) .eyebrow,
.app-shell .page-kicker { color: var(--coda-accent); }
.app-shell .mc-home-calm > .today-next {
  background: radial-gradient(ellipse at 75% 20%,var(--coda-glow),transparent 65%),var(--mc-surface);
  border-color: var(--coda-edge);
}
.app-shell .today-next__context { display: flex; align-items: center; gap: 9px; }
.app-shell .today-next__context::before {
  content: ''; width: 32px; height: 32px; flex: none;
  background: url('/coda-flowing-orb.svg') center / contain no-repeat;
}
.app-shell .mc-home-time-options button[aria-pressed=true] {
  background: var(--coda-tint); color: var(--coda-accent); border-color: var(--coda-accent);
}
.app-shell .mc-clarity .home-start-focus {
  color: #fff !important; background: linear-gradient(145deg,#7568e9,#367fd0) !important;
  border-color: rgba(172,192,255,.6) !important;
  box-shadow: 0 4px 14px rgba(69,90,202,.16);
}
.app-shell .mc-clarity .home-start-focus :is(span,strong) { color: #fff; }
.app-shell .mc-home-ready-tools .mc-button { border-color: var(--coda-edge); }

/* One clean header, with weather, usage and customization available on demand. */
.app-shell .glass-topbar {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: nowrap;
  gap: 12px; min-height: 48px; margin-bottom: 24px; padding: 0;
}
.app-shell .glass-topbar .glass-time-weather {
  display: flex; width: auto; min-width: 0; max-width: none; min-height: 44px;
  padding: 0; margin: 0; border: 0; box-shadow: none; background: none; gap: 0;
}
.app-shell .glass-topbar .glass-clock { min-width: 0; }
.app-shell .glass-topbar .coda-anytime {
  display: inline-flex; align-items: center; gap: 7px; min-height: 44px;
  padding: 6px 10px; white-space: nowrap; border: 1px solid var(--coda-edge); border-radius: 24px;
  color: var(--coda-accent); font-size: 12px;
}
body:has(#app-shell:not([hidden])) .mc-coda-companion:not([data-living-coda]) .mc-coda-companion__launcher[aria-expanded=false] { display: none; }
.app-shell :is(.coda-workspace-details,.coda-planning-options,.coda-planner-ai) {
  max-width: 800px; margin: 20px auto 0; border-top: 1px solid var(--coda-edge);
  color: var(--mc-ink-secondary);
}
.app-shell :is(.coda-workspace-details,.coda-planning-options,.coda-planner-ai) > summary {
  min-height: 48px; padding: 14px 4px; font-size: 13px; cursor: pointer;
}
.app-shell .coda-workspace-details[open] > :not(summary),
.app-shell .coda-planning-options[open] > div { margin-top: 12px; }
.app-shell .coda-workspace-details .mc-weather-bar { width: 100%; }
.app-shell .coda-planning-options > div { display: grid; gap: 14px; }
.app-shell .coda-workspace-details[hidden] { display: none; }
.app-shell [data-view=home] .mc-home-tour { display: none; }
.app-shell .mc-clarity .home-start-focus { position: relative; overflow: hidden; }
.app-shell .mc-clarity .home-start-focus::before {
  content: none;
}
.app-shell .mc-clarity .home-start-focus > span { position: relative; }
.app-shell .mc-clarity .mc-clarity__go { display: none; }
.app-shell .mc-clarity .home-start-focus [data-home-focus-label] { font-size: 16px; line-height: 1.4; }

/* Focus has one visual anchor and one primary action. */
.app-shell [data-view=focus] { max-width: 700px; }
.app-shell [data-view=focus] > .page-header { border: 0; padding: 0; margin: 0 0 16px; }
.app-shell [data-view=focus] .page-kicker { display: none; }
.app-shell [data-view=focus] .page-header h1 { font-size: 24px; }
.app-shell [data-view=focus] .focus-hero {
  display: block; margin: 0 0 16px; padding: 0; min-height: 0; text-align: center;
  background: none !important; border: 0; border-radius: 0; box-shadow: none;
}
.app-shell [data-view=focus] .focus-hero h2 { font-size: 18px; font-weight: 500; margin: 0 0 6px; color: var(--mc-ink) !important; }
.app-shell [data-view=focus] .focus-hero > p { font-size: 13px; color: var(--mc-ink-secondary); }
.app-shell [data-view=focus] .focus-layout { gap: 14px; }
.app-shell [data-view=focus] .focus-timer-card--glass {
  padding: 6px 0 16px; gap: 18px; min-height: 0; border: 0; background: none; box-shadow: none;
}
.app-shell [data-view=focus] .focus-timer-card__top { font-size: 11px; color: var(--mc-ink-secondary); }
.app-shell [data-view=focus] .focus-ring {
  position: relative; width: min(100%,290px); padding: 3px;
  background: conic-gradient(from -90deg,#a6b6ff var(--focus-progress),rgba(142,171,255,.24) 0);
  border: 1px solid var(--coda-edge); box-shadow: 0 0 60px var(--coda-glow);
}
.app-shell [data-view=focus] .focus-ring::before {
  content: ''; position: absolute; inset: -14px; border: 1px solid var(--coda-edge); border-radius: 50%; pointer-events: none;
}
.app-shell [data-view=focus] .focus-ring__inner {
  position: relative; overflow: hidden; border: 1px solid rgba(178,201,255,.24);
  background: radial-gradient(circle at 30% 20%,#253f76,#0b1a36 68%,#102c4f); gap: 10px;
}
.app-shell [data-view=focus] .focus-ring__inner::before {
  content: ''; position: absolute; inset: -12%; background: url('/coda-flowing-orb.svg') center / contain no-repeat;
  opacity: .28; pointer-events: none;
}
.app-shell [data-view=focus] .focus-clock { position: relative; font-size: clamp(3.7rem,16vw,5rem); color: #f1f5ff; font-weight: 550; letter-spacing: -.06em; }
.app-shell [data-view=focus] .focus-actions { margin-top: 4px; }
.app-shell [data-view=focus] .focus-actions .mc-button--primary { min-width: 190px; min-height: 50px; border-radius: 16px; color: #fff !important; background: linear-gradient(125deg,#6356d8,#366fc6) !important; }
.app-shell [data-view=focus] .focus-sync-status { margin: 0; max-width: 48ch; justify-self: center; color: var(--mc-ink-secondary); font-size: 12px; text-align: center; }
.app-shell [data-view=focus] .focus-sync-status:empty { display: none; }
.app-shell [data-view=focus] .focus-options { border: 0; border-top: 1px solid var(--coda-edge); border-radius: 0; background: none; }
.app-shell [data-view=focus] .focus-options > summary { min-height: 48px; padding: 14px 4px; }
.app-shell [data-view=focus] .focus-options > summary strong { font-size: 13px; font-weight: 500; }
.app-shell [data-view=focus] .focus-options > summary span { display: none; }

/* Planning shows the day and its tasks; integrations are a deliberate choice. */
.app-shell [data-view=planner] .planner-hero { display: none; }
.app-shell [data-view=planner] .planner-command-strip {
  padding: 0; margin: 0 0 20px; border: 0; background: none; box-shadow: none;
}
.app-shell [data-view=planner] .planner-command-strip [data-add-block] { display: none; }
.app-shell [data-view=planner] .planner-command-strip__actions { display: flex; flex-wrap: nowrap; gap: 10px; }
.app-shell [data-view=planner] .planner-command-strip__actions > button { flex: 1; width: auto; min-width: 0; }
.app-shell [data-view=planner] .planner-command-strip [data-add-task] { background: var(--mc-action) !important; color: var(--mc-on-accent) !important; }
.app-shell [data-view=planner] .planner-command-strip [data-plan-my-day] { background: transparent !important; color: var(--mc-teal) !important; border: 1px solid var(--mc-line); box-shadow: none; }
.app-shell [data-view=planner] .planner-workspace {
  display: grid; grid-template-columns: minmax(0,1.25fr) minmax(0,1fr); gap: 18px;
}
.app-shell [data-view=planner] .planner-workspace > :is(.planner-timeline-card,.planner-tasks-card) { grid-column: auto; grid-row: auto; }
.app-shell [data-view=study] .study-section-nav { display: none; }
.app-shell [data-view=notes] .notes-studio-start { background: none; border: 0; padding: 0; box-shadow: none; }
.app-shell [data-view=notes] .notes-studio-start .eyebrow { display: none; }
.app-shell [data-view=notes] .notes-studio-start h2 { font-size: 23px; }
.app-shell [data-view=notes] .notes-studio-start > p { font-size: 14px; max-width: 48ch; color: var(--mc-ink-secondary); }
.app-shell [data-view=notes] .notes-studio-links { border: 0; border-top: 1px solid var(--coda-edge); border-radius: 0; background: none; }
.app-shell [data-view=notes] .notes-studio-links > summary { min-height: 48px; font-size: 13px; }
.app-shell [data-view=notes] .mc-coda-entry { display: block; padding: 0; margin-top: 8px; border-top: 1px solid var(--coda-edge); }
.app-shell [data-view=notes] .mc-coda-entry > summary { min-height: 48px; padding: 14px 0; font-size: 13px; color: var(--mc-ink-secondary); cursor: pointer; }
.app-shell [data-view=notes] .mc-coda-entry > button { margin: 4px 8px 8px 0; }

/* Ready -> thinking -> conversation. The orb stays a recognizable anchor. */
.app-shell[data-active-view=ai] [data-view=ai] {
  max-width: 790px; margin-inline: auto; padding-bottom: 30px;
  background: none; color: var(--mc-ink);
}
.app-shell[data-active-view=ai] .coda-welcome {
  display: flex; flex-direction: column; align-items: center; gap: 0;
  max-width: 680px; margin: 0 auto 22px; padding: 4px 16px 0; text-align: center;
}
.app-shell[data-active-view=ai] .coda-brand {
  order: 0; gap: 10px; align-self: stretch; margin: 0 0 4px;
}
.app-shell[data-active-view=ai] .coda-brand h1 { margin: 0; font-size: 20px; letter-spacing: -.5px; }
.app-shell[data-active-view=ai] .coda-brand p { margin: 3px 0 0; color: var(--mc-ink-secondary); font-size: 12px; }
.app-shell[data-active-view=ai] .coda-welcome > .coda-flow {
  order: 1; display: block; width: 168px; height: 168px; flex: none;
  margin: 4px auto 10px; align-self: center; position: relative;
  transition: width 240ms ease,height 240ms ease;
}
.app-shell[data-active-view=ai] .coda-welcome > h2 {
  order: 2; font-size: clamp(27px,3vw,36px); line-height: 1.2;
  font-weight: 600; letter-spacing: -.045em; margin: 0 0 10px;
}
.app-shell[data-active-view=ai] .coda-greeting {
  order: 3; margin: 0; max-width: 44ch; color: var(--mc-ink-secondary);
  font-size: 14px; line-height: 1.6;
}
.app-shell[data-active-view=ai] .coda-state {
  order: 4; margin: 8px 0 0 !important; min-height: 0;
  font-size: 12px !important; color: var(--coda-accent);
}
.app-shell[data-active-view=ai] [data-view=ai] .ai-tutor-layout {
  max-width: 680px; margin-inline: auto; gap: 12px;
}
.app-shell[data-active-view=ai] [data-view=ai] .tutor-course-bar {
  display: flex; align-items: center; gap: 12px; padding: 10px 14px !important;
  border: 1px solid var(--coda-edge); border-radius: 16px;
  background: color-mix(in srgb,var(--mc-surface) 78%,transparent); box-shadow: none;
}
.app-shell[data-active-view=ai] .tutor-course-bar > label { flex: 1 1 120px; min-width: 0; gap: 2px; }
.app-shell[data-active-view=ai] [data-tutor-material-shortcut] { flex: 0 0 auto; }
.app-shell[data-active-view=ai] .tutor-course-bar > label > span { font-size: 11px; color: var(--mc-ink-secondary); }
.app-shell[data-active-view=ai] .tutor-course-bar select {
  min-height: 36px; padding: 5px 22px 5px 0; border: 0; border-radius: 0; background-color: transparent;
  color: var(--mc-ink); font-size: 14px; box-shadow: none;
}
.app-shell[data-active-view=ai] [data-tutor-material-shortcut] button {
  font-size: 12px; padding: 8px 6px; color: var(--coda-accent); white-space: nowrap;
}
.app-shell[data-active-view=ai] [data-view=ai] form.coda-inline-composer {
  position: relative !important; gap: 12px !important; padding: 20px !important;
  border-radius: 24px !important; border: 1px solid var(--coda-edge) !important;
  background: linear-gradient(135deg,color-mix(in srgb,var(--mc-surface) 92%,#b2b4f1),var(--mc-surface)) !important;
  box-shadow: 0 12px 42px var(--coda-glow),inset 0 1px 0 rgba(255,255,255,.12);
}
.app-shell[data-active-view=ai] [data-view=ai] form.coda-inline-composer:focus-within {
  border-color: var(--coda-accent) !important; box-shadow: 0 12px 42px var(--coda-glow),0 0 0 3px var(--coda-glow);
}
.app-shell[data-active-view=ai] [data-view=ai] form.coda-inline-composer textarea {
  order: 0; min-height: 76px !important; height: 76px; padding: 3px 0 !important;
  max-height: 38dvh; resize: vertical; font-size: 16px !important; line-height: 1.6;
}
.app-shell[data-active-view=ai] [data-view=ai] .tutor-quick-actions { order: 1; gap: 8px; }
.app-shell[data-active-view=ai] [data-view=ai] .tutor-quick-actions button {
  display: flex; align-items: center; gap: 7px; min-height: 44px !important;
  border: 1px solid var(--coda-edge); border-radius: 12px !important; padding: 9px 12px !important;
  font-size: 12px; background: transparent !important; color: var(--mc-ink);
}
.app-shell[data-active-view=ai] [data-view=ai] .tutor-quick-actions button svg {
  display: block; width: 15px; height: 15px; padding: 0; border-radius: 0;
  background: transparent !important; color: var(--coda-accent) !important;
}
.app-shell[data-active-view=ai] .ai-composer__bottom { order: 2; margin: 0; }
.app-shell[data-active-view=ai] [data-view=ai] [data-ai-send] {
  min-height: 44px; border-radius: 13px !important; color: #fff;
  background: linear-gradient(120deg,#6556d8,#366fc6) !important;
  border: 1px solid rgba(172,192,255,.38); box-shadow: 0 4px 16px rgba(68,82,190,.17);
}
.app-shell[data-active-view=ai] .ai-action-allowance {
  order: 3; padding: 0; margin: 0; background: none; color: var(--mc-ink-secondary);
  font-size: 11px; line-height: 1.5;
}
.app-shell[data-active-view=ai] .coda-voice-options { order: 4; margin: 0; border-color: var(--coda-edge); }
.app-shell[data-active-view=ai] .coda-voice-options summary { min-height: 44px; padding: 10px 0; font-size: 12px; }
.app-shell[data-active-view=ai] :is(.coda-tools,.tutor-workspace-tools,[data-ai-access-note]) { max-width: 680px; }
.app-shell[data-active-view=ai] :is(.coda-tools,.tutor-workspace-tools) > summary { color: var(--mc-ink-secondary); font-size: 12px; }
.app-shell[data-active-view=ai] .coda-welcome:is(.in-conversation,.is-composing) {
  display: grid; grid-template-columns: 48px minmax(0,1fr); align-items: center;
  gap: 0 12px; padding: 0; margin-bottom: 16px; text-align: left;
}
.app-shell[data-active-view=ai] .coda-welcome:is(.in-conversation,.is-composing) > .coda-flow {
  display: block; grid-column: 1; grid-row: 1 / 3; width: 48px; height: 48px; margin: 0;
}
.app-shell[data-active-view=ai] .coda-welcome:is(.in-conversation,.is-composing) .coda-brand { grid-column: 2; grid-row: 1; margin: 0; }
.app-shell[data-active-view=ai] .coda-welcome:is(.in-conversation,.is-composing) .coda-customize { display: none; }
.app-shell[data-active-view=ai] .coda-welcome:is(.in-conversation,.is-composing) .coda-state { grid-column: 2; grid-row: 2; margin: 3px 0 0 !important; }
.app-shell[data-active-view=ai] .coda-welcome:is(.in-conversation,.is-composing) :is(h2,.coda-greeting,.coda-topic) { display: none; }
.app-shell[data-active-view=ai] .ai-message-list { padding: 12px 0 20px !important; gap: 22px !important; overflow: visible; }
.app-shell[data-active-view=ai] .ai-message--student { border-color: var(--coda-edge); background: var(--coda-tint); color: var(--mc-ink); }
.app-shell[data-active-view=ai] .ai-message--assistant { border-color: var(--coda-edge); line-height: 1.7; }
.app-shell[data-active-view=ai] [data-coda-flow=thinking] .coda-state { color: var(--coda-accent); }

@media(max-width:760px) {
  .app-shell .glass-topbar { gap: 8px; margin-bottom: 22px; }
  .app-shell .glass-topbar .glass-wordmark { min-width: 0; font-size: 18px; }
  .app-shell [data-view=planner] .planner-workspace { grid-template-columns: minmax(0,1fr); }
  .app-shell .today-next__context { justify-content: flex-start; }
  .app-shell[data-active-view=ai] .coda-welcome { padding-inline: 0; margin-bottom: 18px; }
  .app-shell[data-active-view=ai] .coda-welcome > .coda-flow { width: 130px; height: 130px; margin: 2px auto 8px; }
  .app-shell[data-active-view=ai] .coda-welcome > h2 { font-size: 28px; }
  .app-shell[data-active-view=ai] .coda-greeting { font-size: 13px; max-width: 36ch; }
  .app-shell[data-active-view=ai] [data-view=ai] form.coda-inline-composer { padding: 16px !important; gap: 10px !important; }
  .app-shell[data-active-view=ai] [data-view=ai] .tutor-quick-actions button { flex: 1 1 auto; justify-content: center; padding: 9px 7px !important; }
  .app-shell[data-active-view=ai] .coda-welcome:is(.in-conversation,.is-composing) > .coda-flow { width: 48px; height: 48px; }
}
@media(max-height:740px) and (max-width:760px) {
  .app-shell [data-view=focus] .focus-ring { width: min(100%,225px); }
  .app-shell [data-view=focus] .focus-timer-card--glass { gap: 14px; }
  .app-shell [data-view=focus] > .page-header { margin-bottom: 10px; }
}
@media(max-width:360px) {
  .app-shell[data-active-view=ai] .coda-welcome > .coda-flow { width: 108px; height: 108px; }
  .app-shell[data-active-view=ai] .coda-welcome > h2 { font-size: 25px; }
  .app-shell[data-active-view=ai] [data-view=ai] .tutor-course-bar { padding: 8px 10px !important; }
  .app-shell[data-active-view=ai] .tutor-course-bar > label { flex-basis: 100px; }
}
@media(prefers-reduced-motion:reduce) { .app-shell[data-active-view=ai] .coda-flow { transition: none; } }
@media(prefers-reduced-transparency:reduce),(prefers-contrast:more) {
  .app-shell[data-active-view=ai] [data-view=ai] form.coda-inline-composer,
  .app-shell .mc-home-calm > .today-next { background: var(--mc-surface) !important; }
}
@media(forced-colors:active) {
  .app-shell .mc-clarity .home-start-focus,
  .app-shell[data-active-view=ai] [data-view=ai] [data-ai-send] { background: ButtonFace !important; color: ButtonText !important; border: 1px solid ButtonText !important; }
}

/* A recognizable companion, with a quiet footprint during real study work. */
.app-shell .glass-topbar .coda-anytime { gap: 8px; font-size: 14px; padding: 4px 12px 4px 6px; }
.app-shell .coda-anytime img { width: 36px; height: 36px; object-fit: contain; flex: none; }
.app-shell .today-next__context::before {
  width: 44px; height: 44px;
  background-image: url('/coda-companion-blue-v1.png');
}
.coda-flow.is-companion::before,.coda-flow.is-companion::after { display: none; }
.coda-flow.is-companion > img,
.coda-flow.is-companion[data-thinking=true] > img {
  object-fit: contain; padding: 0;
  animation: coda-companion-float 8s ease-in-out infinite;
  filter: drop-shadow(0 8px 18px #247ae52b);
}
@keyframes coda-companion-float {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}
.mc-coda-companion__portrait { width: 44px; height: 44px; object-fit: contain; vertical-align: middle; margin-right: 6px; }
.mc-coda-companion__launcher::before { content: none; }
.theme-dark .app-shell { --mc-ink: #f1f5ff; --mc-ink-secondary: #bccbe3; }
@media(prefers-reduced-motion:reduce) {
  .coda-flow.is-companion > img { animation: none !important; will-change: auto; }
}


/* Shared Coda presence and contextual handoffs. */
.app-shell .glass-topbar { position: sticky; top: 0; z-index: 25; background: color-mix(in srgb,var(--mc-surface,#fff) 94%,transparent); backdrop-filter: blur(12px); }
.app-shell main.app-main:has([data-view=ai]:not([hidden])) > .glass-topbar { display: flex; }
.app-shell .glass-topbar .coda-thread {
  max-width: min(400px,48vw); gap: 9px; padding: 5px 12px 5px 5px;
  text-align: left; white-space: normal; border-radius: 28px;
}
.app-shell .coda-thread .coda-thread__orb { width: 34px; height: 34px; flex: none; }
.coda-thread__identity { display: grid; min-width: 0; gap: 1px; line-height: 1.25; }
.coda-thread__identity strong { font-size: 12px; font-weight: 650; }
.coda-thread__subtitle { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; color: var(--mc-ink-secondary); }
.coda-thread__live { flex: none; font-size: 11px; font-variant-numeric: tabular-nums; }
.coda-thread__live:not([hidden])::before { content: ''; display: inline-block; width: 5px; height: 5px; margin-right: 5px; vertical-align: 1px; border-radius: 50%; background: currentColor; }
.coda-thread[data-state=running] .coda-thread__orb,
.coda-thread[data-state=thinking] .coda-thread__orb { animation: coda-thread-breathe 4s ease-in-out infinite; }
@keyframes coda-thread-breathe { 50% { transform: scale(.9); opacity: .7; } }
#coda-thread-sheet { position: fixed; left: 50%; top: 50%; right: auto; bottom: auto; transform: translate(-50%,-50%); margin: 0; width: min(480px,calc(100% - 24px)); max-width: calc(100% - 24px); max-height: min(760px,90dvh); border: 1px solid rgba(112,126,194,.3); border-radius: 24px; padding: 0; color: var(--mc-ink,#232641); background: var(--mc-surface,#fff); overflow: auto; }
.coda-thread-sheet .sheet-surface { display: block; width: 100%; min-width: 0; padding: 24px; overflow-wrap: anywhere; }
.coda-thread-sheet::backdrop { background: rgba(13,18,45,.48); backdrop-filter: blur(6px); }
.coda-thread__head { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
.coda-thread__head .coda-thread__orb { width: 42px; height: 42px; }
.coda-thread__head h2 { flex: 1; font-size: 17px; font-weight: 600; letter-spacing: -.025em; }
.coda-thread__head > button { padding: 8px; font-size: 12px; min-width: 44px; }
.coda-thread__subject { margin: 0 0 6px; font-size: 25px; line-height: 1.2; letter-spacing: -.035em; overflow-wrap: anywhere; }
.coda-thread__course { margin: 0 0 16px; color: var(--mc-ink-secondary,#656980); font-size: 13px; }
.coda-thread__state { margin: 0 0 20px; font-size: 14px; line-height: 1.5; color: var(--mc-ink-secondary,#656980); }
.coda-thread__session { width: 100%; min-height: 48px; padding: 12px; margin-bottom: 18px; border: 1px solid rgba(99,112,201,.3); border-radius: 12px; color: var(--mc-ink,#24283f); background: rgba(102,113,218,.08); font: inherit; font-size: 13px; cursor: pointer; }
.coda-thread__actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.coda-thread__actions > .mc-button--primary { grid-column: 1/-1; }
.coda-thread__actions > .mc-button { min-height: 46px; padding: 10px; font-size: 13px; }
.coda-thread__actions + p { margin: 18px 0 0; font-size: 11px; line-height: 1.5; color: var(--mc-ink-secondary,#656980); }
.coda-thread-attachment { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 12px; margin-bottom: 10px; padding: 10px 12px; border-radius: 12px; background: var(--coda-tint,#e9edff); color: var(--coda-accent,#4563d8); font-size: 12px; }
.coda-thread-attachment > span { flex: 1 1 160px; min-width: 0; overflow-wrap: anywhere; }
.coda-thread-attachment > button { min-height: 36px; padding: 4px; font-size: 11px; }
.app-shell[data-active-view=ai] [data-view=ai] .coda-thread-attachment > button { width: auto; min-height: 30px; flex: none; padding: 3px 4px !important; font-size: 11px; }
.coda-thread-attachment[hidden],.coda-thread__session[hidden],.coda-thread__live[hidden],.coda-thread__actions [hidden] { display: none; }
.theme-dark .coda-thread-sheet { background: #182137; color: #f0f2ff; --mc-ink: #f0f2ff; --mc-ink-secondary: #b3bed8; --mc-surface: #182137; }
@media (max-width: 540px) {
  .app-shell .glass-topbar .coda-thread { max-width: 51vw; gap: 5px; padding-right: 9px; }
  .app-shell .coda-thread .coda-thread__orb { width: 30px; height: 30px; }
  .coda-thread__identity strong { font-size: 11px; }
  .coda-thread__subtitle { max-width: 90px; font-size: 10px; }
  .coda-thread__live { font-size: 10px; }
  .coda-thread-sheet .sheet-surface { padding: 20px; }
}
@media (max-width: 360px) { .coda-thread__subtitle { max-width: 60px; } }
@media (prefers-reduced-motion: reduce) { .coda-thread .coda-thread__orb { animation: none !important; } }
html:is([data-reduced-motion=true],[data-personalize-motion=true]) .coda-thread .coda-thread__orb { animation: none !important; }

/* Music is one deliberate choice beside Focus, with provider-owned playback. */
.app-shell [data-view=focus] .focus-music-drawer { border-top:1px solid var(--coda-edge); margin:4px 0; min-width:0; }
.focus-music-drawer > summary { display:flex; align-items:center; justify-content:space-between; gap:12px; min-height:48px; padding:12px 4px; cursor:pointer; font-size:13px; }
.focus-music-drawer > summary span { font-size:11px; color:var(--mc-ink-secondary); }
.app-shell .focus-music-drawer .focus-music-card { margin:0 0 12px; width:100%; min-width:0; }
.focus-music-service-links { margin-top:8px; }
.focus-music-service-links a { min-height:44px; font-size:12px; }