:root {
  --bg: #0b1020;
  --card: rgba(19, 27, 45, 0.88);
  --card-2: rgba(24, 35, 58, 0.94);
  --line: rgba(129, 164, 255, 0.24);
  --text: #edf2ff;
  --muted: #9bb0d5;
  --ok: #3ddc84;
  --warn: #f9c74f;
  --danger: #ff5d73;
  --accent: #65b7ff;
  --shadow: 0 20px 70px rgba(2, 7, 16, 0.4);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 12%, rgba(101, 183, 255, 0.25), transparent 30%),
    radial-gradient(circle at 90% 8%, rgba(157, 106, 255, 0.2), transparent 25%),
    linear-gradient(160deg, #0a1020, #10182d 45%, #0c1a33);
  font-family: "Manrope", "Segoe UI", Arial, sans-serif;
}

.shell {
  width: min(1320px, 100%);
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 14px;
  min-height: 100vh;
  grid-template-rows: auto auto auto 1fr;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(18, 28, 48, 0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand h1 {
  margin: 2px 0 0;
  font-size: clamp(1.08rem, 2vw, 1.45rem);
}

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

.badge {
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.82rem;
  background: rgba(39, 54, 82, 0.95);
  border: 1px solid var(--line);
}

.badge.connected {
  border-color: var(--ok);
}

.badge.connecting,
.badge.waiting {
  border-color: var(--warn);
}

.badge.disconnected {
  border-color: var(--danger);
}

.room-pill {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(39, 54, 82, 0.95);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px 6px 12px;
  font-size: 0.86rem;
}

.room-pill button {
  border: 1px solid var(--line);
  background: rgba(94, 130, 199, 0.5);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 11px;
  cursor: pointer;
}

.error {
  border-radius: 12px;
  border: 1px solid rgba(255, 93, 115, 0.6);
  background: rgba(255, 93, 115, 0.16);
  padding: 10px 12px;
}

.lobby {
  width: min(760px, 100%);
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(25, 35, 57, 0.95), rgba(17, 25, 42, 0.95));
  box-shadow: var(--shadow);
  padding: 18px;
}

.lobby h2 {
  margin: 0;
  font-size: clamp(1.1rem, 2.2vw, 1.55rem);
}

.lobby p {
  margin: 8px 0 0;
  color: var(--muted);
}

.lobby-controls {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

input,
button {
  border-radius: 11px;
  border: 1px solid var(--line);
  background: rgba(33, 47, 75, 0.86);
  color: var(--text);
  font-size: 0.93rem;
  padding: 10px 12px;
}

input {
  outline: none;
}

input:focus {
  border-color: var(--accent);
}

button {
  cursor: pointer;
}

button:hover {
  filter: brightness(1.08);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.primary {
  background: linear-gradient(135deg, #7db6ff, #5f89ff);
  color: #0a1223;
  border-color: transparent;
  font-weight: 700;
}

.call {
  display: grid;
  grid-template-rows: minmax(50vh, 1fr) auto;
  gap: 12px;
  min-height: 0;
}

.video-board {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(13, 19, 34, 0.9);
  box-shadow: var(--shadow);
  padding: 12px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(170px, 1fr);
}

.local-tile {
  grid-column: span 3;
}

.remote-grid {
  grid-column: span 9;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  align-content: start;
}

.tile {
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--card);
  overflow: hidden;
  min-height: 170px;
}

.tile-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  font-size: 0.82rem;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.tile .source {
  color: #7fe2ba;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
}

video {
  width: 100%;
  height: calc(100% - 34px);
  display: block;
  background: #000;
  object-fit: cover;
}

.dock {
  margin: 0 auto;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(23, 33, 53, 0.94);
  box-shadow: var(--shadow);
  padding: 9px 11px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.dock-btn {
  border-radius: 999px;
  min-width: 110px;
  height: 42px;
  padding: 0 14px;
}

.dock-btn.active {
  background: linear-gradient(135deg, #7de3ff, #58a8ff);
  color: #071224;
  border-color: transparent;
  font-weight: 700;
}

.dock-btn.danger {
  background: linear-gradient(135deg, #ff7c89, #ff5d73);
  border-color: transparent;
  color: #fff;
}

.empty-state {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 16px;
  color: var(--muted);
  text-align: center;
}

.hidden {
  display: none !important;
}

@media (max-width: 1000px) {
  .video-board {
    grid-template-columns: 1fr;
  }

  .local-tile,
  .remote-grid {
    grid-column: auto;
  }

  .local-tile {
    min-height: 180px;
  }
}

@media (max-width: 640px) {
  .shell {
    padding: 10px;
  }

  .dock {
    width: 100%;
    border-radius: 14px;
  }

  .dock-btn {
    flex: 1 1 45%;
    min-width: 0;
  }
}