*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:            #080808;
  --surface:       #111111;
  --border:        #222222;
  --text:          #f0f0f0;
  --text-muted:    #777777;
  --accent:        #00ff87;
  --accent-hover:  #00cc6a;
  --danger:        #e53e3e;
  --danger-hover:  #c53030;
  --success-bg:    rgba(0, 255, 135, 0.25);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
}

/* ── Site Header ───────────────────────────────────────────────────────────── */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.5rem;
  z-index: 100;
}

.site-logo {
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-logo:hover { opacity: 0.8; }

/* ── Lobby ────────────────────────────────────────────────────────────────── */

.lobby-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 4rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.card-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 50px;
  padding: 0.2rem 0.75rem;
  margin-bottom: 1.25rem;
  opacity: 0.85;
}

.gradient-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.6rem;
  background: linear-gradient(90deg, #00ff87 0%, #00d4ff 40%, #a855f7 70%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card p {
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.footer-note {
  margin-top: 1.5rem;
  margin-bottom: 0 !important;
  font-size: 0.78rem !important;
  color: var(--text-muted);
  opacity: 0.6;
}

.footer-note a {
  color: var(--accent);
  text-decoration: none;
  opacity: 0.8;
}

.footer-note a:hover { opacity: 1; }

.btn-primary {
  width: 100%;
  padding: 0.85rem;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { opacity: 0.9; }

.divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.join-row {
  display: flex;
  gap: 0.5rem;
}

.join-row input {
  flex: 1;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.15s;
}

.join-row input::placeholder { color: var(--text-muted); }
.join-row input:focus { border-color: var(--accent); }

.btn-secondary {
  padding: 0.75rem 1.25rem;
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}

.btn-secondary:hover { background: rgba(0, 255, 135, 0.08); }

/* ── Room ─────────────────────────────────────────────────────────────────── */

.room-page {
  overflow: hidden;
  height: 100vh;
}

.video-container {
  position: relative;
  width: 100%;
  height: 100vh;
  background: #000;
}

#remote-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Picture-in-picture local video */
.local-pip {
  position: absolute;
  bottom: 110px;
  right: 20px;
  width: 200px;
  height: 150px;
  border-radius: 10px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  object-fit: cover;
  background: #111;
  z-index: 10;
  cursor: move;
}

/* Status bar at top */
.status-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.25rem;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.65), transparent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  z-index: 20;
}

#status {
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  padding: 0.3rem 0.85rem;
  border-radius: 20px;
  transition: background 0.3s;
}

#status.connected { background: var(--success-bg); }

#copy-link-btn {
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 0.3rem 0.85rem;
  border-radius: 20px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}

#copy-link-btn:hover  { background: rgba(255, 255, 255, 0.15); }
#copy-link-btn.copied { background: var(--success-bg); border-color: transparent; }

/* Controls bar at bottom */
.controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 20;
}

.ctrl-btn {
  padding: 0.7rem 1.4rem;
  border: none;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.ctrl-btn:hover  { background: rgba(255, 255, 255, 0.28); }
.ctrl-btn:active { transform: scale(0.95); }
.ctrl-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.ctrl-btn.off    { background: rgba(255, 255, 255, 0.06); color: var(--text-muted); }

.ctrl-btn.hangup       { background: var(--danger); }
.ctrl-btn.hangup:hover { background: var(--danger-hover); }