:root {
  --bg: #0b1020;
  --card: #121a33;
  --text: #e8ecff;
  --muted: #a8b1d6;
  --accent: #5b8cfe;
  --danger: #ff5b6b;
  --border: rgba(255,255,255,0.10);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 20% -10%, rgba(91,140,254,0.25), transparent 60%),
              radial-gradient(900px 600px at 80% 0%, rgba(255,91,107,0.18), transparent 55%),
              var(--bg);
  color: var(--text);
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(11,16,32,0.85);
  backdrop-filter: blur(10px);
}

h1 { margin: 0; font-size: 20px; }
h2 { margin: 0 0 10px 0; font-size: 16px; }

.subtitle { color: var(--muted); font-size: 12px; margin-top: 3px; }

.status {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 14px;
  padding: 14px;
}

.signInCard { min-height: 420px; }
.callCard { min-height: 420px; }


.loginRow {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(220px, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.loginField {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.joinBtn {
  min-width: 72px;
  height: 41px;
  white-space: nowrap;
}

.groupPicker { min-width: 0; }

.smallLabel {
  font-size: 11px;
  color: var(--muted);
}

.twoCols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.sectionTitle {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 320px;
  overflow: auto;
}

.listItem {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(0,0,0,0.12);
}

.listItemHeader {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.listItemTitle { font-weight: 700; }
.listItemSub { color: var(--muted); font-size: 12px; margin-top: 4px; }

.listItemBtns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.adminPanel {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.adminPanel.hidden { display: none; }

.card {
  background: rgba(18,26,51,0.8);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  min-height: 180px;
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
}

input {
  flex: 1;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  outline: none;
}

button {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(91,140,254,0.18);
  color: var(--text);
  cursor: pointer;
}

button:hover { background: rgba(91,140,254,0.25); }
button:disabled { opacity: 0.55; cursor: not-allowed; }

button.danger {
  background: rgba(255,91,107,0.16);
}
button.danger:hover { background: rgba(255,91,107,0.25); }

.hint, .small {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.me {
  padding: 8px 10px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
}


.videosGrid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.videoTile .label { margin-bottom: 6px; }

.controls {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.callInfo {
  color: var(--muted);
  font-size: 13px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(0,0,0,0.10);
}

.label { color: var(--muted); font-size: 12px; margin-bottom: 6px; }

video {
  width: 100%;
  height: 220px;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--border);
  border-radius: 12px;
  object-fit: cover;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.hidden { display: none; }

.modalCard {
  width: min(420px, 100%);
  background: rgba(18,26,51,0.95);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.35);
}

.incomingFrom {
  margin-top: 8px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(0,0,0,0.12);
  color: var(--muted);
}

@media (max-width: 1020px) {
  .grid { grid-template-columns: 1fr; }
  .twoCols { grid-template-columns: 1fr; }
  video { height: 200px; }
}


@media (max-width: 720px) {
  .header {
    padding: 14px;
    gap: 12px;
    align-items: flex-start;
  }

  .status {
    flex-shrink: 0;
  }

  .grid {
    padding: 10px;
    gap: 10px;
  }

  .card {
    padding: 12px;
    border-radius: 12px;
  }

  .loginRow {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .joinBtn {
    width: 100%;
    height: 44px;
  }

  input, button {
    min-height: 44px;
    font-size: 15px;
  }

  .videosGrid {
    grid-template-columns: 1fr;
  }

  video {
    height: 240px;
  }
}

@media (max-width: 420px) {
  .header {
    flex-direction: column;
  }

  .status {
    align-self: flex-start;
  }

  video {
    height: 210px;
  }
}

/* Video sizing: keep the full camera frame visible on desktop and mobile */
html, body {
  overscroll-behavior-y: contain;
}

.videoTile {
  position: relative;
}

video {
  aspect-ratio: 16 / 9;
  height: auto;
  max-height: min(56vh, 360px);
  object-fit: contain;
  background: #000;
}

.fullscreenBtn {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 8;
  padding: 7px 10px;
  font-size: 12px;
  background: rgba(0,0,0,0.58);
  border-color: rgba(255,255,255,0.25);
}

body.appFullscreenMode {
  overflow: hidden;
}

body.appFullscreenMode::before {
  content: "";
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 9997;
}

.videoTile.appFullscreenActive {
  position: fixed;
  inset: 0;
  z-index: 9998;
  width: 100vw;
  height: 100dvh;
  max-height: none;
  padding: 12px;
  margin: 0;
  border-radius: 0;
  border: 0;
  background: #000;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.videoTile.appFullscreenActive > .label {
  position: absolute;
  left: 12px;
  top: 10px;
  z-index: 9999;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(0,0,0,0.55);
  color: #fff;
}

.videoTile.appFullscreenActive > video {
  width: 100%;
  height: 100%;
  max-height: none;
  aspect-ratio: auto;
  object-fit: contain;
  border: 0;
  border-radius: 0;
  background: #000;
}

.videoTile.appFullscreenActive .fullscreenBtn {
  right: 14px;
  bottom: 14px;
  z-index: 10001;
}

.selfViewPip {
  display: none;
}

.videoTile.appFullscreenActive .selfViewPip {
  display: block;
  position: absolute;
  right: 14px;
  top: 14px;
  width: min(30vw, 190px);
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 12px;
  overflow: hidden;
  background: #000;
  z-index: 10000;
  box-shadow: 0 10px 30px rgba(0,0,0,0.45);
}

.videoTile.appFullscreenActive .selfViewPip video {
  width: 100%;
  height: 100%;
  max-height: none;
  aspect-ratio: auto;
  border: 0;
  border-radius: 0;
  object-fit: contain;
}

.selfViewPipLabel {
  position: absolute;
  left: 7px;
  top: 5px;
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 11px;
  z-index: 10001;
}

@media (max-width: 720px) {
  video {
    max-height: 52vh;
  }

  .controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .controls button {
    width: 100%;
  }


  .fullscreenBtn {
    min-height: 36px;
    padding: 7px 9px;
  }

  .videoTile.appFullscreenActive {
    height: 100svh;
    padding: 8px;
  }

  .videoTile.appFullscreenActive .selfViewPip {
    width: min(42vw, 170px);
    right: 10px;
    top: 10px;
  }
}


/* Fit-all call grid: keeps all participants visible without scrolling the video area */
.callCard {
  display: flex;
  flex-direction: column;
  min-height: min(760px, calc(100dvh - 110px));
}

.videosGrid {
  --fit-cols: 2;
  --fit-rows: 1;
  flex: 1 1 auto;
  min-height: 260px;
  height: clamp(280px, calc(100dvh - 285px), 720px);
  max-height: calc(100dvh - 245px);
  overflow: hidden;
  display: grid;
  grid-template-columns: repeat(var(--fit-cols), minmax(0, 1fr));
  grid-auto-rows: minmax(0, 1fr);
  align-items: stretch;
}

.videoTile {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

.videoTile > .label {
  flex: 0 0 auto;
}

.videoTile > video {
  flex: 1 1 auto;
  min-height: 0;
  height: 100%;
  max-height: none;
  width: 100%;
  aspect-ratio: auto;
  object-fit: contain;
}

@media (max-width: 1020px) {
  .callCard {
    min-height: auto;
  }

  .videosGrid {
    height: clamp(280px, calc(100dvh - 330px), 640px);
    max-height: calc(100dvh - 260px);
  }
}

@media (max-width: 720px) {
  .videosGrid {
    gap: 8px;
    min-height: 240px;
    height: clamp(260px, calc(100svh - 315px), 560px);
    max-height: calc(100svh - 245px);
  }

  .videoTile .label {
    font-size: 11px;
    margin-bottom: 4px;
  }

  .fullscreenBtn {
    right: 6px;
    bottom: 6px;
    font-size: 11px;
    padding: 6px 8px;
  }
}

@media (max-width: 420px) {
  .videosGrid {
    height: clamp(240px, calc(100svh - 300px), 520px);
  }
}