:root {
  color: #f2f3ee;
  background: #000000;
  font-family: Arial, Helvetica, sans-serif;
  font-synthesis: none;
  --canvas: #000000;
  --ink: #f2f3ee;
  --muted: #9b9f98;
  --line: #353833;
  --soft: #1a1c19;
  --yellow: #f1c84b;
  --blue: #68b8f5;
  --red: #ee6b62;
  --green: #54c982;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  min-width: 300px;
  min-height: 100vh;
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
}

button {
  font: inherit;
}

main {
  width: min(1120px, calc(100% - 64px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 52px 0;
  display: grid;
  align-items: center;
}

h1,
h2,
p {
  overflow-wrap: anywhere;
}

h1,
h2 {
  letter-spacing: 0;
}

.room-layout,
.room-grid {
  min-width: 0;
}

.room-layout {
  display: grid;
  gap: 38px;
}

.room-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(380px, 1.18fr);
}

.room-controls,
.participant-panel {
  min-width: 0;
}

.room-controls {
  padding: 4px 44px 4px 0;
  border-right: 1px solid var(--line);
}

.participant-panel {
  padding-left: 44px;
}

.status-badge {
  height: 30px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 700;
}

.status-dot,
.participant-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border-radius: 50%;
  background: #6e726c;
}

.participant-voice-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 8px;
  border: 1px solid #42505a;
  border-radius: 50%;
  background: transparent;
  transition: background-color 80ms linear, border-color 80ms linear, box-shadow 80ms linear;
}

.participant-voice-dot[data-speaking="true"] {
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: 0 0 0 3px rgb(104 184 245 / 15%);
}

.status-badge[data-state="working"] .status-dot,
.participant-row[data-state="working"] .participant-dot {
  background: var(--yellow);
}

.status-badge[data-state="connected"] .status-dot,
.participant-row[data-state="connected"] .participant-dot {
  background: var(--green);
}

.status-badge[data-state="error"] .status-dot,
.participant-row[data-state="error"] .participant-dot {
  background: var(--red);
}

.call-status {
  min-height: 190px;
  padding: 28px 0 30px;
  border-bottom: 1px solid var(--line);
}

.call-status h2 {
  margin: 0 0 10px;
  font-size: 26px;
  line-height: 1.2;
}

.call-status p {
  min-height: 21px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.local-frequency {
  width: min(100%, 390px);
  height: 54px;
  margin-top: 22px;
  padding: 0 2px 3px;
  display: flex;
  align-items: flex-end;
  gap: 3px;
  border-bottom: 1px solid #424742;
}

.frequency-bar {
  height: 0;
  min-width: 2px;
  flex: 1 1 0;
  border-radius: 1px 1px 0 0;
  background: linear-gradient(to top, #397ea9, var(--blue));
  opacity: 0.86;
  transition: height 70ms linear, opacity 70ms linear;
}

.controls {
  min-height: 88px;
  padding: 22px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}

.button {
  height: 42px;
  min-width: 102px;
  padding: 0 18px;
  border: 0;
  border-radius: 3px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  cursor: pointer;
}

.button:focus-visible,
.participant-disconnect:focus-visible,
.microphone-option input:focus-visible,
.participant-gain input:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

.button:disabled,
.participant-disconnect:disabled {
  opacity: 0.55;
  cursor: wait;
}

.button-primary {
  background: var(--yellow);
  color: #13140f;
}

.button-primary:hover:not(:disabled) {
  background: #ffda5b;
}

.button-secondary {
  background: #e3e5df;
  color: #171815;
}

.button-secondary:hover:not(:disabled) {
  background: #ffffff;
}

.button-danger {
  background: #8f302d;
  color: #ffffff;
}

.button-danger:hover:not(:disabled) {
  background: #ad3a35;
}

.microphone-option {
  height: 42px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

.microphone-option:hover {
  background: var(--soft);
  color: var(--ink);
}

.microphone-option input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--yellow);
}

.microphone-option input:checked + span {
  color: var(--ink);
}

.connection-table {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.connection-table div {
  min-width: 0;
  min-height: 72px;
  padding: 17px 0;
}

.connection-table div:nth-child(odd) {
  padding-right: 20px;
  border-right: 1px solid var(--line);
}

.connection-table div:nth-child(even) {
  padding-left: 20px;
}

.connection-table div:nth-child(-n + 2) {
  border-bottom: 1px solid var(--line);
}

.connection-table dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 11px;
}

.connection-table dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}

.participant-heading {
  min-height: 58px;
  padding-bottom: 17px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid var(--line);
}

.participant-heading h2 {
  margin: 0;
  font-size: 17px;
  line-height: 1.25;
}

.participant-heading span {
  color: var(--muted);
  font-family: Consolas, "Courier New", monospace;
  font-size: 11px;
  line-height: 1.4;
  text-align: right;
}

.diagnostic-panel {
  min-width: 0;
  padding-top: 2px;
}

.diagnostic-status {
  min-height: 72px;
  margin: 0;
  padding: 18px 0 0;
  overflow-x: auto;
  color: var(--muted);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.65;
  white-space: pre-wrap;
}

.participant-list {
  max-height: min(68vh, 620px);
  margin: 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
  scrollbar-color: #555a53 var(--canvas);
  scrollbar-width: thin;
}

.participant-row {
  min-height: 69px;
  padding: 14px 0;
  display: grid;
  grid-template-columns: 8px 8px minmax(0, 1fr) 30px auto;
  grid-template-areas:
    "dot voice address frequency action"
    "dot voice meta frequency action";
  align-items: center;
  column-gap: 13px;
  row-gap: 5px;
  border-bottom: 1px solid var(--line);
}

.participant-row[data-has-gain="true"] {
  min-height: 91px;
  grid-template-areas:
    "dot voice address frequency action"
    "dot voice meta frequency action"
    "dot voice gain gain action";
}

.participant-row:hover {
  background: var(--soft);
}

.participant-dot {
  grid-area: dot;
}

.participant-voice-dot {
  grid-area: voice;
}

.participant-frequency {
  grid-area: frequency;
  width: 30px;
  height: 24px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
}

.participant-frequency-bar {
  width: 2px;
  height: 0;
  flex: 0 0 2px;
  border-radius: 1px 1px 0 0;
  background: var(--blue);
  opacity: 0.8;
  transition: height 70ms linear, opacity 70ms linear;
}

.frequency-bar[data-level="0"],
.participant-frequency-bar[data-level="0"] {
  height: 0;
  opacity: 0;
  transition: none;
}

.frequency-bar[data-level="1"],
.participant-frequency-bar[data-level="1"] { height: 10%; }
.frequency-bar[data-level="2"],
.participant-frequency-bar[data-level="2"] { height: 16%; }
.frequency-bar[data-level="3"],
.participant-frequency-bar[data-level="3"] { height: 22%; }
.frequency-bar[data-level="4"],
.participant-frequency-bar[data-level="4"] { height: 28%; }
.frequency-bar[data-level="5"],
.participant-frequency-bar[data-level="5"] { height: 34%; }
.frequency-bar[data-level="6"],
.participant-frequency-bar[data-level="6"] { height: 40%; }
.frequency-bar[data-level="7"],
.participant-frequency-bar[data-level="7"] { height: 47%; }
.frequency-bar[data-level="8"],
.participant-frequency-bar[data-level="8"] { height: 54%; }
.frequency-bar[data-level="9"],
.participant-frequency-bar[data-level="9"] { height: 61%; }
.frequency-bar[data-level="10"],
.participant-frequency-bar[data-level="10"] { height: 68%; }
.frequency-bar[data-level="11"],
.participant-frequency-bar[data-level="11"] { height: 75%; }
.frequency-bar[data-level="12"],
.participant-frequency-bar[data-level="12"] { height: 82%; }
.frequency-bar[data-level="13"],
.participant-frequency-bar[data-level="13"] { height: 88%; }
.frequency-bar[data-level="14"],
.participant-frequency-bar[data-level="14"] { height: 94%; }
.frequency-bar[data-level="15"],
.participant-frequency-bar[data-level="15"] { height: 100%; }

.participant-address {
  grid-area: address;
  min-width: 0;
  color: var(--ink);
  font-family: Consolas, "Courier New", monospace;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.participant-meta {
  grid-area: meta;
  min-width: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.participant-gain {
  grid-area: gain;
  width: min(230px, 100%);
  min-width: 0;
  display: grid;
  grid-template-columns: 46px minmax(72px, 1fr);
  align-items: center;
  gap: 9px;
}

.participant-gain-value {
  color: var(--blue);
  font-family: Consolas, "Courier New", monospace;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.participant-gain input {
  width: 100%;
  height: 18px;
  margin: 0;
  appearance: none;
  background: transparent;
  cursor: pointer;
}

.participant-gain input::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 2px;
  background: var(--line);
}

.participant-gain input::-webkit-slider-thumb {
  width: 13px;
  height: 13px;
  margin-top: -5px;
  appearance: none;
  border: 2px solid var(--canvas);
  border-radius: 50%;
  background: var(--blue);
}

.participant-gain input::-moz-range-track {
  height: 3px;
  border: 0;
  border-radius: 2px;
  background: var(--line);
}

.participant-gain input::-moz-range-thumb {
  width: 13px;
  height: 13px;
  border: 2px solid var(--canvas);
  border-radius: 50%;
  background: var(--blue);
}

.participant-disconnect {
  grid-area: action;
  width: 72px;
  height: 34px;
  padding: 0 8px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--red);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.participant-disconnect:hover:not(:disabled) {
  background: #3a211f;
  color: #ff8b83;
}

.participant-empty {
  margin: 0;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.remote-audio {
  display: none;
}

.cli-panel {
  min-width: 0;
  padding-top: 28px;
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 44px;
  border-top: 1px solid var(--line);
}

.cli-intro span {
  color: var(--blue);
  font-family: Consolas, "Courier New", monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cli-intro h2 {
  margin: 10px 0 9px;
  font-size: 20px;
}

.cli-intro p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.cli-downloads {
  min-width: 0;
  display: grid;
  gap: 14px;
}

.cli-platform {
  min-width: 0;
}

.cli-platform-heading {
  margin-bottom: 7px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.cli-platform-heading strong {
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
}

.cli-platform-heading a,
.cli-checksums {
  color: var(--blue);
  font-size: 12px;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.cli-platform pre {
  margin: 0;
  padding: 12px 14px;
  overflow: hidden;
  border-left: 2px solid #435763;
  background: #151714;
  color: #d8ddd5;
  font-family: Consolas, "Courier New", monospace;
  font-size: 11px;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.cli-checksums {
  width: fit-content;
}

.notice {
  max-width: 680px;
  padding: 0 0 28px;
  border-bottom: 1px solid var(--red);
}

.notice h1 {
  margin: 0 0 12px;
  font-size: 26px;
}

.notice p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

@media (max-width: 820px) {
  main {
    width: min(100% - 32px, 680px);
    padding: 30px 0;
    align-items: start;
  }

  .room-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .room-controls {
    padding: 0 0 28px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .participant-panel {
    padding: 28px 0 0;
  }

  .participant-list {
    max-height: 52vh;
  }

  .cli-panel {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }
}

@media (max-width: 430px) {
  main {
    width: calc(100% - 24px);
    padding: 22px 0;
  }

  .call-status {
    min-height: 180px;
    padding: 23px 0 25px;
  }

  .call-status h2 {
    font-size: 22px;
  }

  .controls .button {
    flex: 1 1 calc(50% - 5px);
    min-width: 0;
  }

  .microphone-option {
    flex: 1 1 100%;
    justify-content: center;
  }

  .participant-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .participant-heading span {
    text-align: left;
  }

  .participant-row {
    column-gap: 8px;
  }

  .participant-disconnect {
    width: 64px;
  }
}