:root {
  --bg: #121212;
  --bg-2: #1b1b1f;
  --panel: #232327;
  --line: #3a3a40;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --primary: #dc183c;
  --primary-2: #f43f5e;
  --success: #16a34a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, sans-serif;
  color: var(--text);
  background: var(--bg);
}

.app-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 30% -10%, #2b2b34 0%, #151518 40%, #0f0f11 100%);
}

.screen {
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

.topbar,
.meeting-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
}

.brand-mark {
  color: var(--primary);
  font-size: 1.2rem;
}

.pill {
  border: 1px solid #ffffff20;
  background: #ffffff10;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
}

.pill.secure {
  color: #34d399;
}

.start-main {
  width: min(680px, 92vw);
  margin: 9vh auto 0;
  text-align: center;
}

.start-main h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin-bottom: 0.5rem;
}

.start-main p {
  color: var(--muted);
}

.start-auth {
  width: min(420px, 92vw);
  margin: 1rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.auth-row {
  justify-content: center;
}

.btn {
  border: 1px solid #ffffff1a;
  background: #ffffff10;
  color: var(--text);
  border-radius: 0.75rem;
  padding: 0.6rem 0.95rem;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn.small {
  padding: 0.45rem 0.7rem;
  font-size: 0.85rem;
}

.btn.big {
  margin-top: 1.1rem;
  padding: 0.95rem 1.35rem;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  border: none;
}

.btn-success {
  background: #16a34a;
  border: none;
}

.btn-danger {
  background: #e11d48;
  border: none;
}

.status {
  color: var(--muted);
}

.lobby-main {
  width: min(1200px, 96vw);
  margin: 1rem auto;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.3fr 1fr;
}

.preview-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 1rem;
  overflow: hidden;
  background: #000;
  min-height: 420px;
}

.preview-card video,
.video-tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

.preview-tag {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  font-size: 0.75rem;
  background: #000000a8;
  border: 1px solid #ffffff26;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
}

.card {
  background: #1d1d22cc;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
}

.row {
  display: flex;
  gap: 0.5rem;
  margin: 0.6rem 0;
  flex-wrap: wrap;
}

.invite-row input {
  flex: 1;
  min-width: 180px;
}

input {
  background: #15151a;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  color: var(--text);
  padding: 0.6rem 0.7rem;
}

.user-actions {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.user-info {
  font-size: 0.82rem;
  color: var(--muted);
}

.meeting-main {
  width: min(1320px, 96vw);
  margin: 0.7rem auto 0;
  display: grid;
  grid-template-columns: 1fr minmax(290px, 340px);
  gap: 0.8rem;
  min-height: calc(100vh - 190px);
}

.meeting-left {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.screen-share-stage {
  position: relative;
  border: 1px solid #ffffff1a;
  border-radius: 1rem;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #050507;
}

.screen-share-stage video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.video-tile {
  position: relative;
  border: 1px solid #ffffff1a;
  border-radius: 1rem;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  min-height: 0;
  background: #000;
}

.video-label {
  position: absolute;
  left: 0.55rem;
  bottom: 0.55rem;
  background: #0000009a;
  border: 1px solid #ffffff24;
  border-radius: 0.5rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
}

.side-panel {
  background: #1c1c20f2;
  border: 1px solid var(--line);
  border-radius: 1rem;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-tabs {
  display: flex;
  gap: 0.45rem;
  padding: 0.6rem;
  border-bottom: 1px solid var(--line);
}

.panel-tabs .active {
  background: #ffffff24;
}

.panel-body {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.chat-messages {
  flex: 1;
  overflow: auto;
  padding: 0.75rem;
}

.chat-item {
  margin-bottom: 0.55rem;
  border: 1px solid #ffffff16;
  background: #ffffff0f;
  border-radius: 0.55rem;
  padding: 0.45rem;
}

.chat-meta {
  color: var(--muted);
  font-size: 0.72rem;
}

.chat-input-row {
  border-top: 1px solid var(--line);
  padding: 0.65rem;
  display: flex;
  gap: 0.45rem;
}

.chat-input-row input {
  flex: 1;
}

.participants-list {
  padding: 0.75rem;
  overflow: auto;
}

.participant-item {
  display: flex;
  justify-content: space-between;
  gap: 0.55rem;
  align-items: center;
  border: 1px solid #ffffff16;
  background: #ffffff0f;
  border-radius: 0.6rem;
  padding: 0.5rem;
  margin-bottom: 0.5rem;
}

.control-bar-wrap {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 1.1rem;
}

.control-bar {
  background: #1c1c20eb;
  border: 1px solid #ffffff1f;
  border-radius: 1rem;
  padding: 0.45rem;
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.icon-btn {
  border: 1px solid #ffffff14;
  background: #ffffff0f;
  color: #fff;
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 0.7rem;
  cursor: pointer;
}

.icon-btn.accent {
  background: #dc183c40;
  border-color: #dc183c80;
}

@media (max-width: 980px) {
  .lobby-main,
  .meeting-main {
    grid-template-columns: 1fr;
  }

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

  .video-tile {
    min-height: 230px;
  }

  .meeting-main {
    padding-bottom: 7rem;
  }
}