:root {
  color-scheme: light;
  font-family:
    "Avenir Next Rounded", "SF Pro Rounded", ui-rounded, "Avenir Next",
    sans-serif;
  --canvas: #f8f6f2;
  --frame: #161817;
  --ink: #f2ece1;
  --muted: #aaa79d;
  --detail-ink: #c3beb5;
  --connecting: #d2b779;
  --live: #51aa71;
  --offline: #d27f70;
  --header-ink: #303431;
  --status-ink: #66726c;
  --meter-bg: rgb(255 255 255 / 40%);
  --meter-track: rgb(48 52 49 / 11%);
  --toggle-bg: rgb(65 70 66 / 8%);
  --toggle-border: rgb(48 52 49 / 12%);
  --toggle-thumb: #fffefa;
  --toggle-idle: #8a918c;
  --toggle-active: #424844;
  --toggle-shadow: 0 4px 13px rgb(65 55 44 / 10%);

  --content-width: 1120px;
  --page-padding: clamp(18px, 4vw, 56px);
  --content-stack-gap: clamp(24px, 3vmin, 32px);
  --header-offset: clamp(12px, 2.5vh, 24px);
  --monitor-aspect: 16 / 9;
  --title-size: clamp(30px, 4.25vw, 44px);

  --theme-transition: 280ms ease;
  --toggle-transition: 300ms cubic-bezier(0.22, 1, 0.36, 1);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #151715;
  --frame: #090b0a;
  --ink: #f2eee6;
  --muted: #9d9f98;
  --detail-ink: #b8b9b2;
  --header-ink: #e8e5de;
  --status-ink: #a0a8a2;
  --meter-bg: rgb(255 255 255 / 3%);
  --meter-track: rgb(242 238 230 / 10%);
  --toggle-bg: rgb(255 255 255 / 7%);
  --toggle-border: rgb(255 255 255 / 10%);
  --toggle-thumb: #383c38;
  --toggle-idle: #8f9891;
  --toggle-active: #f1eade;
  --toggle-shadow: 0 5px 18px rgb(0 0 0 / 26%);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--canvas);
  transition: background-color var(--theme-transition);
}

body {
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  padding: var(--page-padding);
  flex-direction: column;
  align-items: center;
  gap: var(--content-stack-gap);
  overflow-x: hidden;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  --state-color: var(--connecting);
  transition: color var(--theme-transition);
}

body[data-state="live"] {
  --state-color: var(--live);
}

body[data-state="offline"] {
  --state-color: var(--offline);
}

.viewer-header,
.monitor {
  width: min(var(--content-width), 100%);
}

.viewer-header {
  position: relative;
  display: flex;
  margin-top: var(--header-offset);
  flex-direction: column;
  align-items: center;
  gap: clamp(12px, 1.7vw, 18px);
  color: var(--header-ink);
  text-align: center;
}

.theme-toggle {
  position: absolute;
  display: grid;
  top: -2px;
  right: 0;
  width: 74px;
  height: 38px;
  padding: 0;
  grid-template-columns: repeat(2, 1fr);
  place-items: center;
  border: 1px solid var(--toggle-border);
  border-radius: 999px;
  background: var(--toggle-bg);
  box-shadow: inset 0 1px rgb(255 255 255 / 6%);
  color: var(--toggle-idle);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition:
    background-color var(--theme-transition),
    border-color var(--theme-transition),
    box-shadow 180ms ease,
    color var(--theme-transition);
}

.theme-toggle::before {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--toggle-thumb);
  box-shadow: var(--toggle-shadow);
  content: "";
  transition:
    transform var(--toggle-transition),
    background-color var(--theme-transition),
    box-shadow var(--theme-transition);
}

.theme-toggle:hover {
  box-shadow:
    inset 0 1px rgb(255 255 255 / 6%),
    0 5px 18px rgb(54 48 41 / 9%);
}

.theme-toggle:active {
  transform: scale(0.97);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--header-ink);
  outline-offset: 3px;
}

.line-icon {
  --line-icon-size: 17px;
  --line-icon-stroke: 1.7;

  width: var(--line-icon-size);
  height: var(--line-icon-size);
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: var(--line-icon-stroke);
}

:root[data-theme="dark"] .theme-toggle::before {
  transform: translateX(36px);
}

.theme-icon {
  z-index: 1;
  transition:
    color var(--theme-transition),
    transform var(--toggle-transition);
}

.theme-icon-sun {
  color: var(--toggle-active);
}

:root[data-theme="dark"] .theme-icon-sun {
  color: var(--toggle-idle);
  transform: rotate(40deg);
}

:root[data-theme="dark"] .theme-icon-moon {
  color: var(--toggle-active);
  transform: rotate(-8deg);
}

.room-title {
  margin: 0;
  font-size: var(--title-size);
  font-weight: 600;
  letter-spacing: -0.052em;
  line-height: 1;
}

.monitor {
  position: relative;
  aspect-ratio: var(--monitor-aspect);
  overflow: hidden;
  border-radius: clamp(20px, 2vw, 24px);
  background: var(--frame);
  isolation: isolate;
  transition: background-color var(--theme-transition);
}

.monitor::after {
  position: absolute;
  z-index: 2;
  inset: 0;
  border: 1px solid rgb(255 255 255 / 12%);
  border-radius: inherit;
  box-shadow: inset 0 0 80px rgb(0 0 0 / 22%);
  content: "";
  pointer-events: none;
}

video {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--frame);
}

.sound-meter {
  display: grid;
  width: min(400px, 100%);
  min-height: clamp(56px, 7.6vw, 58px);
  padding: 12px 16px;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: clamp(14px, 2vw, 16px);
  border-radius: 16px;
  background: var(--meter-bg);
  color: var(--header-ink);
  transition:
    background-color var(--theme-transition),
    color var(--theme-transition);
}

.sound-meter[hidden] {
  display: none;
}

.sound-meter-heading {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sound-meter-icon {
  display: grid;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: color-mix(in srgb, var(--live) 11%, transparent);
  color: var(--live);
  place-items: center;
}

.sound-meter-label {
  color: var(--status-ink);
  font-size: 13px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.sound-bars {
  display: flex;
  height: 18px;
  align-items: center;
  justify-self: end;
  gap: 5px;
}

.sound-bar {
  width: 5px;
  height: 18px;
  border-radius: 999px;
  background: var(--meter-track);
  transition: background-color 120ms linear;
}

.sound-meter[data-level="1"] .sound-bar:nth-child(1),
.sound-meter[data-level="2"] .sound-bar:nth-child(-n + 2),
.sound-meter[data-level="3"] .sound-bar:nth-child(-n + 3),
.sound-meter[data-level="4"] .sound-bar:nth-child(-n + 4),
.sound-meter[data-level="5"] .sound-bar:nth-child(-n + 5) {
  background: color-mix(in srgb, var(--live) 80%, transparent);
}

.sound-meter[data-level="1"] .sound-bar:nth-child(1),
.sound-meter[data-level="2"] .sound-bar:nth-child(2),
.sound-meter[data-level="3"] .sound-bar:nth-child(3),
.sound-meter[data-level="4"] .sound-bar:nth-child(4),
.sound-meter[data-level="5"] .sound-bar:nth-child(5) {
  background: var(--live);
}

.status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(8px, 1vw, 9px);
  color: var(--status-ink);
  font-size: clamp(14px, 1.5vw, 17px);
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: 1.2;
  pointer-events: none;
}

.status::before {
  width: clamp(7px, 0.9vw, 9px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--state-color);
  content: "";
}

body[data-state="connecting"] .status::before {
  animation: breathe 2.8s ease-in-out infinite;
}

.empty-state {
  position: absolute;
  z-index: 3;
  inset: 0;
  display: grid;
  place-content: center;
  padding: 24px;
  text-align: center;
  pointer-events: none;
  transition: opacity 260ms ease;
}

body[data-state="live"] .empty-state {
  opacity: 0;
}

.offline-icon {
  --line-icon-size: clamp(44px, 5vw, 56px);
  --line-icon-stroke: 1.45;

  display: none;
  color: var(--muted);
  opacity: 0.62;
}

body[data-state="offline"] .offline-icon {
  display: block;
}

body[data-state="offline"] .connection-copy {
  display: none;
}

.eyebrow {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.state-title {
  margin: 0;
  font-size: clamp(42px, 7vw, 70px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1;
  text-shadow: 0 12px 38px rgb(0 0 0 / 25%);
  text-wrap: balance;
}

.detail {
  margin: 18px 0 0;
  color: var(--detail-ink);
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.45;
}

@keyframes breathe {
  50% {
    opacity: 0.55;
    transform: scale(0.84);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --theme-transition: 0s;
    --toggle-transition: 0s;
  }

  .theme-toggle,
  .sound-bar,
  .empty-state {
    transition: none;
  }

  body[data-state="connecting"] .status::before {
    animation: none;
  }
}

@media (orientation: portrait) {
  :root {
    --page-padding: clamp(10px, 2vw, 20px);
    --header-offset: clamp(20px, 2.5vw, 32px);
    --title-size: clamp(27px, 3vw, 32px);
  }
}

@media (max-width: 760px) {
  .theme-toggle {
    top: -6px;
    scale: 0.89;
    transform-origin: right center;
  }
}