:root {
  --bg: #0b1020;
  --card: #131d3a;
  --accent: #18b0ff;
  --accent2: #7f7dff;
  --text: #f5f7ff;
  --muted: #8d97b7;
  --danger: #ff6363;
}

* {
  box-sizing: border-box;
}

@font-face {
  font-family: 'InterVar';
  src: local('Inter');
  font-weight: 400 700;
}

body {
  margin: 0;
  font-family: 'InterVar', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 20% 20%, #1b2c63 0%, #0b1020 45%, #050712 100%);
  min-height: 100vh;
}

.app-shell {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
  flex-shrink: 0;
}

.topbar h1 {
  margin: 0;
  font-size: 1.1rem;
}

main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.join-card,
.conference {
  border: 1px solid #2a3560;
  border-radius: 14px;
  background: color-mix(in oklab, var(--card), black 30%);
  padding: 16px;
}


.join-card form {
  display: grid;
  gap: 12px;
  max-width: 420px;
}

.join-card label {
  display: grid;
  gap: 4px;
}

.join-card input {
  border-radius: 8px;
  border: 1px solid #36417a;
  background: #0f1730;
  color: var(--text);
  padding: 10px;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  color: var(--text);
  background: linear-gradient(180deg, #1ea7ff, #2b74ff);
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Conference panel ── */

.conference {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 100%;
}

.conference[hidden] {
  display: none;
}

.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
  flex-shrink: 0;
}

.conf-body {
  flex: 1;
  display: flex;
  gap: 10px;
  min-height: 0;
}

/* ── Screen area (left, dominant) ── */

.screen-area {
  flex: 1;
  min-width: 0;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  display: none;
}

.screen-area.active {
  display: block;
}

.screen-area .screen-grid {
  height: 100%;
  display: block;
}

.screen-area .screen-item {
  height: 100%;
  border: none;
  padding: 0;
  background: #000;
  border-radius: 0;
}

.screen-area .screen-item span {
  display: none;
}

.screen-area .screen-item video {
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: contain;
  border-radius: 0;
  background: #000;
}

/* ── Cameras sidebar (right, 200px) ── */

.cameras-panel {
  width: 10%;
  min-width: 110px;
  flex-shrink: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.local-tile,
.peer-tile {
  background: #101a38;
  border: 1px solid #3f4a80;
  border-radius: 10px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.media-area p,
.media-area h4 {
  position: absolute;
  bottom: 6px;
  right: 8px;
  margin: 0;
  font-size: 11px;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  padding: 2px 6px;
  border-radius: 4px;
  z-index: 1;
  pointer-events: none;
}

.local-tile video,
.peer-tile video {
  width: 100%;
  max-height: 150px;
  border-radius: 8px;
  background: #000;
  object-fit: cover;
  display: block;
}

.peer-tile audio {
  display: none;
}

/* Placeholder when peer has no camera */
.media-area {
  position: relative;
  aspect-ratio: 4 / 3;
  background:
    #0d1630
    url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 80'><circle cx='40' cy='27' r='17' fill='%233f4a80'/><path d='M6 74 Q6 50 40 50 Q74 50 74 74Z' fill='%233f4a80'/></svg>")
    center / 44% no-repeat;
  border-radius: 8px;
  overflow: hidden;
}

.media-area video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: cover;
  border-radius: 0;
  display: block;
}

/* ── Viewer mode: dynamic tile grid (template set by JS) ── */

.viewer-mode .screen-area {
  display: none;
}

.viewer-mode .cameras-panel {
  width: 100%;
  flex: 1;
  display: grid;
  gap: 8px;
  overflow: hidden;
  min-height: 0;
  align-content: stretch;
}

/* #participants hidden; tiles are moved directly into cameras-panel by JS */
.viewer-mode #participants {
  display: none;
}

.viewer-mode .local-tile,
.viewer-mode .peer-tile {
  position: relative;
  overflow: hidden;
  padding: 0;
  border-radius: 8px;
  width: auto;
}

.viewer-mode .local-tile p {
  display: none;
}

.viewer-mode .local-tile .media-area,
.viewer-mode .peer-tile .media-area {
  position: absolute;
  inset: 0;
  aspect-ratio: unset;
}

.viewer-mode .local-tile video,
.viewer-mode .peer-tile video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: cover;
  border-radius: 0;
  display: block;
}

/* ── Role badges ── */

.peer-tile {
  position: relative;
}

.peer-tile[data-role]::before {
  content: attr(data-role);
  position: absolute;
  top: 6px;
  left: 6px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0,0,0,.55);
  color: var(--muted);
  pointer-events: none;
  z-index: 1;
}

.peer-tile[data-role='streamer']::before {
  background: rgba(255, 99, 99, .75);
  color: #fff;
}

.peer-tile[data-role='viewer']::before {
  background: rgba(127, 125, 255, .75);
  color: #fff;
}

/* ── Error / hint ── */

#joinError {
  color: var(--danger);
  margin: 0;
  font-size: 14px;
}

.hint {
  color: var(--muted);
  margin-top: 10px;
}

#reconnectBanner {
  margin: 0;
  font-size: 13px;
  color: var(--danger);
}

.reconnecting .media-area::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  pointer-events: none;
  z-index: 2;
}

/* ── Conference-only: no chrome ── */

body.in-conference .topbar {
  display: none;
}

body.in-conference .toolbar {
  display: none;
}

body.in-conference.is-streamer .toolbar {
  display: flex;
}

body.in-conference .app-shell {
  padding: 0;
}

body.in-conference .conference {
  border: none;
  border-radius: 0;
  padding: 0;
}

/* ── Portrait / vertical layout ── */

@media (orientation: portrait) {
  .conf-body {
    flex-direction: column;
    overflow: hidden;
  }

  .screen-area {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    flex-shrink: 0;
  }

  .cameras-panel {
    width: 100%;
    min-width: 0;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-content: flex-start;
  }

  #participants {
    display: contents;
  }

  .local-tile,
  .peer-tile {
    width: calc(50% - 4px);
  }
}