:root {
  color-scheme: light dark;
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel-2: #eef1f5;
  --text: #1b1d22;
  --muted: #596170;
  --accent: #006fcb;
  --accent-hover: #005fb5;
  --accent-text: #ffffff;
  --danger: #b3261e;
  --border: rgba(0, 0, 0, 0.14);
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.12);
  --canvas-bg: #f5f6f8;
  --canvas-surface: rgba(255, 255, 255, 0.86);
  --canvas-surface-strong: rgba(255, 255, 255, 0.94);
  --canvas-border: rgba(0, 0, 0, 0.22);
  --canvas-text: #1b1d22;
  --canvas-muted: #596170;
  --canvas-overlay: rgba(255, 255, 255, 0.84);
  --canvas-overprint: rgba(27, 29, 34, 0.62);
  --canvas-progress-mask: rgba(245, 246, 248, 0.62);
  --canvas-danger: #b3261e;
  --canvas-break: #b7791f;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select,
a {
  font: inherit;
}

code {
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--border));
  border-radius: 4px;
  padding: 1px 5px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--text);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.95em;
  font-weight: 700;
}

.shell {
  min-height: 100svh;
  display: grid;
  place-items: start center;
  padding: clamp(16px, 3vw, 32px);
}

.home {
  width: min(100%, 980px);
  display: grid;
  gap: 32px;
  padding-block: clamp(24px, 5vw, 56px);
}

.site-nav {
  width: min(100%, 980px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: clamp(16px, 3vw, 28px);
}

.site-mark,
.site-links {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.site-mark {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.site-mark img {
  width: 32px;
  height: 32px;
}

.site-links a {
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
}

.site-links a:hover {
  color: var(--accent);
}

.home-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 24px;
  max-width: 860px;
}

.app-icon {
  display: block;
  width: 80px;
  height: 80px;
}

.home h1 {
  margin: 0;
  font-size: clamp(40px, 7vw, 64px);
  line-height: 1.05;
}

.lede {
  max-width: 58ch;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.45;
}

.pronunciation {
  color: var(--text);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.9em;
  font-weight: 700;
}

.home-section {
  display: grid;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.home-section h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.2;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--border);
}

.feature-list li {
  display: grid;
  gap: 6px;
  padding: 18px 20px 18px 0;
  border-bottom: 1px solid var(--border);
}

.feature-list li:nth-child(odd) {
  padding-right: 28px;
}

.feature-list li:nth-child(even) {
  padding-left: 28px;
  border-left: 1px solid var(--border);
}

.feature-list strong {
  font-size: 16px;
}

.feature-list span,
.install-steps {
  color: var(--muted);
  line-height: 1.45;
}

.install-section {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 24px;
}

.install-steps {
  margin: 12px 0 0;
  padding-left: 22px;
}

.install-steps li + li {
  margin-top: 8px;
}

.how-to {
  width: min(100%, 860px);
  display: grid;
  gap: 28px;
  padding-block: clamp(24px, 5vw, 52px);
}

.how-to-header {
  display: grid;
  gap: 10px;
}

.how-to-header h1 {
  font-size: clamp(36px, 6vw, 56px);
}

.step-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.step-list li {
  counter-increment: steps;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding-block: 18px;
  border-top: 1px solid var(--border);
}

.step-list li::before {
  content: counter(steps);
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
}

.step-list h2 {
  margin: 2px 0 6px;
  font-size: 20px;
}

.step-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.48;
}

.how-to-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--border);
}

.topic-card {
  display: grid;
  gap: 6px;
  padding: 20px 24px 20px 0;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

.topic-card:nth-child(even) {
  padding-left: 24px;
  border-left: 1px solid var(--border);
}

.topic-card strong {
  color: var(--accent);
  font-size: 18px;
}

.topic-card span {
  color: var(--muted);
  line-height: 1.45;
}

.topic-card:hover strong {
  color: var(--accent-hover);
}

.note-panel {
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
}

.note-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.note-panel h2 {
  margin: 0;
  font-size: 20px;
}

.tag-list {
  display: grid;
  gap: 10px;
  margin: 0;
}

.tag-list div {
  display: grid;
  grid-template-columns: minmax(130px, auto) minmax(0, 1fr);
  gap: 12px;
}

.tag-list dt,
.tag-list dd {
  margin: 0;
}

.tag-list dd {
  color: var(--muted);
  line-height: 1.45;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.mac-download-page {
  min-height: 100svh;
  background: #ffffff;
  color: #1b1d22;
}

.mac-download {
  min-height: 100svh;
  display: grid;
  place-items: center;
  gap: 24px;
  padding: 24px;
}

.mac-download-image {
  display: block;
  width: min(78vmin, 760px);
  height: auto;
}

.mac-download-smile {
  font-size: clamp(40px, 10vmin, 96px);
  line-height: 1;
}

.button,
button {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0 18px;
  font-weight: 600;
  cursor: pointer;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.primary,
button {
  background: var(--accent);
  color: var(--accent-text);
}

.primary:hover,
button:hover {
  background: var(--accent-hover);
}

.secondary {
  background: var(--panel);
  border-color: var(--border);
  color: var(--text);
}

.secondary:hover {
  background: var(--panel-2);
}

button:disabled {
  cursor: default;
  opacity: 0.6;
}

.join {
  align-self: center;
  width: min(100%, 420px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.join-title {
  margin: 4px 0 24px;
  font-size: clamp(28px, 8vw, 44px);
  line-height: 1.1;
}

.join-form label,
.label,
.eyebrow {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0;
}

.join-form > input {
  margin: 8px 0 16px;
}

.code-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 8px;
}

input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 12px;
  background: var(--panel);
  color: var(--text);
  font-family: Consolas, "Courier New", monospace;
  font-size: 22px;
}

select {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  background: var(--panel);
  color: var(--text);
  font-size: 18px;
}

.error {
  min-height: 22px;
  color: var(--danger);
}

.help {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.35;
}

.viewer {
  align-self: center;
  width: min(100%, 1280px);
  height: calc(100svh - 32px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 8px;
}

.topbar,
.details {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
}

h1,
.eyebrow {
  margin: 0;
}

h1 {
  font-size: clamp(18px, 2.6vw, 28px);
  line-height: 1.12;
}

.status {
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  text-align: right;
}

.timer-stage {
  position: relative;
  min-height: 0;
  overflow: hidden;
}

.viewer-toolbar {
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  max-width: 100%;
  padding: 6px 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.82);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
  overflow-x: auto;
  scrollbar-width: thin;
}

.toolbar-group {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.toolbar-separator {
  flex: 0 0 auto;
  width: 1px;
  height: 30px;
  margin: 0 5px;
  background: rgba(255, 255, 255, 0.25);
}

.toolbar-button {
  width: 38px;
  min-width: 38px;
  height: 36px;
  min-height: 36px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.20);
  color: #ffffff;
}

.toolbar-button:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.30);
}

.toolbar-button:active:not(:disabled) {
  background: rgba(255, 255, 255, 0.40);
}

.toolbar-button.primary {
  border-color: #60a5fa;
  background: #2563eb;
}

.toolbar-button.primary:hover:not(:disabled) {
  background: #1d4ed8;
}

.toolbar-button[aria-pressed="true"] {
  border-color: rgba(255, 215, 0, 0.72);
  background: rgba(255, 215, 0, 0.38);
}

.toolbar-button svg {
  width: 18px;
  height: 18px;
  display: block;
  fill: currentColor;
}

.toolbar-button:disabled {
  cursor: default;
  opacity: 0.35;
}

canvas {
  width: 100%;
  height: 100%;
  display: block;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

#attendeeNameInput {
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 18px;
}

.speaker-picker {
  margin-top: 14px;
}

@media (max-width: 640px) {
  .shell {
    align-items: stretch;
    padding: 14px;
  }

  .join {
    align-self: center;
  }

  .home {
    grid-template-columns: 1fr;
    padding-block: 24px;
  }

  .home-header,
  .install-section {
    grid-template-columns: 1fr;
  }

  .site-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .home h1 {
    overflow-wrap: anywhere;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .feature-list li,
  .feature-list li:nth-child(odd),
  .feature-list li:nth-child(even) {
    padding: 16px 0;
    border-left: 0;
  }

  .home-actions {
    justify-content: flex-start;
  }

  .step-list li {
    grid-template-columns: 1fr;
  }

  .how-to-grid {
    grid-template-columns: 1fr;
  }

  .topic-card,
  .topic-card:nth-child(even) {
    padding: 18px 0;
    border-left: 0;
  }

  .tag-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .code-row,
  .topbar {
    grid-template-columns: 1fr;
  }

  button {
    min-height: 48px;
  }

  .toolbar-button {
    width: 38px;
    min-width: 38px;
    height: 36px;
    min-height: 36px;
  }

  .status {
    text-align: left;
  }

  .viewer {
    height: calc(100svh - 28px);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101114;
    --panel: #191b21;
    --panel-2: #22252d;
    --text: #f4f5f7;
    --muted: #a6adbb;
    --accent: #4aa6ff;
    --accent-hover: #78bbff;
    --accent-text: #061223;
    --danger: #ff6b6b;
    --border: rgba(255, 255, 255, 0.12);
    --shadow: 0 18px 42px rgba(0, 0, 0, 0.38);
    --canvas-bg: #101114;
    --canvas-surface: rgba(255, 255, 255, 0.12);
    --canvas-surface-strong: rgba(28, 28, 36, 0.88);
    --canvas-border: rgba(255, 255, 255, 0.45);
    --canvas-text: #f4f5f7;
    --canvas-muted: #a6adbb;
    --canvas-overlay: rgba(20, 20, 20, 0.78);
    --canvas-overprint: rgba(20, 20, 24, 0.50);
    --canvas-progress-mask: rgba(20, 20, 24, 0.58);
    --canvas-danger: #f44336;
    --canvas-break: #ffc107;
  }
}

@media (forced-colors: active) {
  .button,
  button,
  input,
  select,
  .join,
  .feature-list {
    border: 1px solid ButtonText;
  }

  .primary,
  button,
  .secondary {
    forced-color-adjust: none;
    background: ButtonFace;
    color: ButtonText;
  }
}