/* ──────────────────────────────────────────────────────────────────────────────
   SyncBeat — Clean synchronized player UI
   ────────────────────────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --bg-deep:      #090a0f;
  --bg-surface:   #0f1117;
  --bg-card:      #151821;
  --bg-elevated:  #1c2230;
  --bg-hover:     #242b3a;

  --accent:        #40c9ff;
  --accent-2:      #f6c85f;
  --accent-light:  #8bddff;
  --accent-glow:   rgba(64, 201, 255, 0.28);
  --accent-dim:    rgba(64, 201, 255, 0.11);
  --accent-border: rgba(64, 201, 255, 0.34);

  /* Status colors */
  --green:        #35d07f;
  --green-dim:    rgba(53, 208, 127, 0.12);
  --red:          #ff6b7f;
  --yellow:       #f59e0b;
  --blue:         #3b82f6;

  /* Text */
  --text-primary:   #f6f8fb;
  --text-secondary: #b4bdcc;
  --text-muted:     #758196;

  /* Borders */
  --border:       rgba(255, 255, 255, 0.12);
  --border-light: rgba(255, 255, 255, 0.06);
  --border-focus: rgba(255, 255, 255, 0.6);

  /* Typography */
  --font:         'Inter', system-ui, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;

  /* Spacing */
  --radius-sm:  6px;
  --radius-md:  8px;
  --radius-lg:  8px;
  --radius-xl:  12px;

  /* Shadows */
  --shadow-sm:     0 2px 8px rgba(0,0,0,0.28);
  --shadow-md:     0 10px 28px rgba(0,0,0,0.34);
  --shadow-lg:     0 18px 46px rgba(0,0,0,0.42);
  --shadow-accent: 0 0 28px rgba(64, 201, 255, 0.18);
  --shadow-glow:   0 0 36px rgba(64, 201, 255, 0.2);
}

:root.light-theme {
  /* Monochromatic Light Palette */
  --bg-deep:      #f4f4f5; /* Light gray background */
  --bg-surface:   #ffffff; /* Pure white surface */
  --bg-card:      #ffffff;
  --bg-elevated:  #e4e4e7;
  --bg-hover:     #f4f4f5;

  /* Accent — Pure Black & Grays */
  --accent:        #000000; /* Pure black */
  --accent-2:      #18181b;
  --accent-light:  #27272a;
  --accent-glow:   rgba(0, 0, 0, 0.15);
  --accent-dim:    rgba(0, 0, 0, 0.05);
  --accent-border: rgba(0, 0, 0, 0.25);

  /* Status colors */
  --green:        #000000;
  --green-dim:    rgba(0, 0, 0, 0.06);
  --red:          #71717a;
  --yellow:       #71717a;
  --blue:         #71717a;

  /* Text */
  --text-primary:   #000000;
  --text-secondary: #3f3f46;
  --text-muted:     #71717a;

  /* Borders */
  --border:       rgba(0, 0, 0, 0.08);
  --border-light: rgba(0, 0, 0, 0.04);
  --border-focus: rgba(0, 0, 0, 0.4);

  /* Soft Shadows for Light Theme */
  --shadow-sm:     0 2px 8px rgba(0,0,0,0.06);
  --shadow-md:     0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg:     0 16px 36px rgba(0,0,0,0.12);
}

/* ── Reset & Base ────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Scrollbar ───────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--accent-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Typography ──────────────────────────────────────────────────────────────── */
h1 { font-family: var(--font-display); font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; }
h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; }
p  { color: var(--text-secondary); }

/* ── Layout Wrapper ──────────────────────────────────────────────────────────── */
.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Glass Card ──────────────────────────────────────────────────────────────── */
.glass {
  background: rgba(21, 24, 33, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.glass:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transition: border-color 0.3s ease;
}

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--accent);
  color: #061019;
}
.btn-primary:hover {
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-hover); border-color: var(--accent-border); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-elevated); border-color: var(--border); }

.btn-icon {
  width: 42px; height: 42px;
  padding: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.btn-icon:hover {
  color: var(--accent-light);
  background: var(--accent-dim);
  border-color: var(--accent-border);
}
.btn-icon.active {
  color: var(--accent-light);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.btn-icon.large {
  width: 52px; height: 52px;
}
.btn-icon.play-btn {
  width: 64px; height: 64px;
  background: var(--accent);
  color: #061019;
  border: none;
}
.btn-icon.play-btn:hover {
  transform: scale(1.08);
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.8rem;
}

/* ── Form Elements ───────────────────────────────────────────────────────────── */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.input-group label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

input[type="text"],
input[type="url"],
input[type="file"] {
  width: 100%;
  padding: 12px 16px;
  background: rgba(8, 8, 15, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
input[type="text"]:focus,
input[type="url"]:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.12), 0 0 20px rgba(255, 255, 255, 0.1);
}
input::placeholder { color: var(--text-muted); }

.input-row {
  display: flex;
  gap: 8px;
}
.input-row input { flex: 1; }

/* ── Badge ───────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.badge-accent  { background: var(--accent-dim);  color: var(--accent-light); border: 1px solid var(--accent-border); }
.badge-green   { background: var(--green-dim);   color: var(--green);         border: 1px solid var(--border-focus); }
.badge-muted   { background: var(--bg-elevated); color: var(--text-muted);    border: 1px solid var(--border-light); }
.badge-spotify { background: rgba(255,255,255,0.03); color: #d4d4d8;             border: 1px solid rgba(255,255,255,0.12); }
.badge-upload  { background: rgba(255,255,255,0.03); color: #d4d4d8;             border: 1px solid rgba(255,255,255,0.12); }
.badge-url     { background: rgba(255,255,255,0.03); color: #d4d4d8;             border: 1px solid rgba(255,255,255,0.12); }

/* ── Toast Notifications ─────────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  padding: 14px 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
  animation: toastIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 360px;
  pointer-events: auto;
}
.toast.success { border-left: 3px solid var(--green); }
.toast.error   { border-left: 3px solid var(--red); }
.toast.info    { border-left: 3px solid var(--accent); }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.9); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(30px); }
}

/* ── Loader ──────────────────────────────────────────────────────────────────── */
.loader {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent-light);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Divider ─────────────────────────────────────────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ═══════════════════════════════════════════════════════════════════════════════
   INDEX PAGE
   ═══════════════════════════════════════════════════════════════════════════════ */

.index-page {
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.index-hero {
  text-align: center;
  max-width: 580px;
  width: 100%;
}

/* Premium Logo Icon */
.index-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 140px;
  height: 140px;
  margin-bottom: 32px;
}

.index-hero h1 { margin-bottom: 14px; }
.index-hero h1 span {
  background: linear-gradient(135deg, var(--accent-light), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.index-hero > p { font-size: 1.1rem; margin-bottom: 36px; line-height: 1.7; }

.index-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.index-card {
  padding: 28px 24px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.index-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.index-card .card-icon {
  font-size: 2rem;
  margin-bottom: 4px;
}
.index-card h3 { color: var(--text-primary); }
.index-card p { font-size: 0.88rem; margin-bottom: 8px; }

.features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  justify-content: center;
}
.feature-tag {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.feature-tag:hover {
  background: var(--accent-dim);
  border-color: var(--accent-border);
  color: var(--accent-light);
}

@media (max-width: 560px) {
  .index-cards { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════════════════════
   ROOM PAGE
   ═══════════════════════════════════════════════════════════════════════════════ */

.room-page {
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-columns: 1fr 340px;
  grid-template-areas:
    "header header"
    "main   sidebar"
    "player player";
  height: 100vh;
  overflow: hidden;
}

/* ── Header ──────────────────────────────────────────────────────────────────── */
.room-header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 17, 23, 0.94);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.room-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* SyncBeat Logo SVG */
.room-logo {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.room-logo svg {
  width: 22px; height: 22px;
  fill: white;
}

.room-info h2 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin-bottom: 2px;
  background: linear-gradient(90deg, var(--text-primary), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.room-code-display {
  display: flex;
  align-items: center;
  gap: 8px;
}
.room-code-badge {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-light);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  padding: 2px 10px;
  border-radius: 6px;
  letter-spacing: 0.15em;
}

.room-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ── Main Area ───────────────────────────────────────────────────────────────── */
.room-main {
  grid-area: main;
  overflow-y: auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── Now Playing Card ────────────────────────────────────────────────────────── */
.now-playing-card {
  padding: 28px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}
.now-playing-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(64, 201, 255, 0.08), transparent 60%);
  pointer-events: none;
}
.now-playing-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-border), transparent);
}

.artwork-container {
  position: relative;
  flex-shrink: 0;
}
.artwork-placeholder {
  width: 130px; height: 130px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-hover));
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
  flex-shrink: 0;
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5), 0 0 0 1px var(--border);
}
.artwork-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.playing-indicator {
  position: absolute;
  bottom: -6px; right: -6px;
  width: 22px; height: 22px;
  background: var(--green);
  border-radius: 50%;
  border: 2px solid var(--bg-deep);
  animation: pulseGreen 2s infinite;
  box-shadow: 0 0 10px rgba(53, 208, 127, 0.45);
}
@keyframes pulseGreen {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(53, 208, 127, 0.4); }
  50%       { transform: scale(1.08); box-shadow: 0 0 0 6px rgba(53, 208, 127, 0); }
}
.playing-indicator.paused {
  background: var(--text-muted);
  animation: none;
  box-shadow: none;
}

.now-playing-info { flex: 1; min-width: 0; }
.now-playing-info .source-badge { margin-bottom: 10px; }
.now-playing-track {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 6px;
  line-height: 1.3;
}
.now-playing-artist {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.playback-engine {
  position: fixed;
  left: -9999px;
  bottom: 0;
  width: 220px;
  height: 220px;
  opacity: 0.01;
  pointer-events: none;
  overflow: hidden;
}
.playback-engine iframe,
.playback-engine #youtube-iframe-player {
  width: 100%;
  height: 100%;
}
.playback-engine iframe {
  display: block;
  border: 0;
}

/* ── Progress Bar ────────────────────────────────────────────────────────────── */
.progress-section { margin-top: auto; }
.time-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.77rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.progress-bar-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  overflow: visible;
}
.progress-bar-track:hover .progress-bar-fill { height: 6px; }
.progress-bar-fill {
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 2px;
  transition: width 0.3s linear, height 0.1s;
  position: relative;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
}
.progress-bar-fill::after {
  content: '';
  position: absolute;
  right: -5px; top: 50%;
  transform: translateY(-50%);
  width: 12px; height: 12px;
  background: white;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.1s;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}
.progress-bar-track:hover .progress-bar-fill::after { opacity: 1; }

/* ── Queue Section ───────────────────────────────────────────────────────────── */
.queue-section { padding: 20px; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.section-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
}

.queue-empty {
  text-align: center;
  padding: 28px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.queue-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.queue-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
  cursor: default;
}
.queue-item:hover { background: var(--bg-hover); }
.queue-item.active {
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
}

.queue-num {
  width: 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.queue-item.active .queue-num { color: var(--accent-light); }
.queue-playing-icon {
  display: none;
  width: 24px;
  justify-content: center;
  color: var(--accent-light);
}
.queue-item.active .queue-num { display: none; }
.queue-item.active .queue-playing-icon { display: flex; }

.queue-thumb {
  width: 40px; height: 40px;
  border-radius: 8px;
  object-fit: cover;
  background: var(--bg-elevated);
  flex-shrink: 0;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  border: 1px solid var(--border-light);
}
.queue-thumb img { width: 100%; height: 100%; object-fit: cover; }

.queue-info { flex: 1; min-width: 0; }
.queue-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.queue-artist { font-size: 0.75rem; color: var(--text-muted); }

.queue-duration {
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.queue-remove {
  width: 28px; height: 28px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s, background 0.15s;
}
.queue-item:hover .queue-remove { opacity: 1; }
.queue-remove:hover { color: var(--red); background: rgba(244, 63, 94, 0.1); }

/* ── Add Music Panel ─────────────────────────────────────────────────────────── */
.add-music-panel { padding: 20px; }

.add-music-tabs {
  display: flex;
  gap: 4px;
  background: rgba(3, 3, 8, 0.6);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 16px;
  border: 1px solid var(--border-light);
}
.add-tab {
  flex: 1;
  padding: 8px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s;
  display: flex; align-items: center; justify-content: center; gap: 5px;
}
.add-tab:hover { color: var(--text-secondary); }
.add-tab.active {
  background: var(--accent-dim);
  color: var(--accent-light);
  border: 1px solid var(--accent-border);
}

.add-tab-content { display: none; }
.add-tab-content.active { display: block; }

.file-drop-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}
.file-drop-area:hover,
.file-drop-area.dragover {
  border-color: var(--accent-border);
  background: var(--accent-dim);
}
.file-drop-area .drop-icon { font-size: 2rem; margin-bottom: 8px; }
.file-drop-area p { font-size: 0.9rem; margin-bottom: 4px; }
.file-drop-area small { font-size: 0.78rem; color: var(--text-muted); }
#fileInput { display: none; }

/* ── Sidebar ─────────────────────────────────────────────────────────────────── */
.room-sidebar {
  grid-area: sidebar;
  border-left: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  background: rgba(3, 3, 8, 0.4);
}

.sidebar-section {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

/* ── Listeners ───────────────────────────────────────────────────────────────── */
.listeners-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}

.listener-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}
.listener-item:hover { background: var(--bg-hover); }

.listener-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  flex-shrink: 0;
  border: 1px solid var(--border-light);
}
.listener-name {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.listener-host-tag {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-light);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  padding: 2px 7px;
  border-radius: 5px;
  letter-spacing: 0.04em;
}
.listener-cohost-tag {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 5px;
  letter-spacing: 0.04em;
}
.btn-promote, .btn-demote {
  background: transparent;
  border: none;
  font-size: 0.85rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}
.btn-promote:hover { background: var(--accent-dim); color: var(--accent-light); }
.btn-demote:hover  { background: rgba(244, 63, 94, 0.1); color: var(--red); }

/* ── Visualizer Canvas ───────────────────────────────────────────────────────── */
.visualizer-container {
  padding: 0 20px 12px;
  height: 60px;
  overflow: hidden;
}
#visualizer {
  width: 100%;
  height: 100%;
  opacity: 0.7;
}

/* ── Player Bar (bottom) ─────────────────────────────────────────────────────── */
.player-bar {
  grid-area: player;
  border-top: 1px solid var(--border);
  background: rgba(15, 17, 23, 0.96);
  backdrop-filter: blur(8px);
  padding: 12px 28px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}
.player-bar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-border), transparent);
}

.player-track-info {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.player-thumb {
  width: 46px; height: 46px;
  border-radius: 10px;
  background: var(--bg-elevated);
  flex-shrink: 0;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  border: 1px solid var(--border-light);
}
.player-thumb img { width: 100%; height: 100%; object-fit: cover; }
.player-track-name {
  font-size: 0.9rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}
.player-artist-name {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.player-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
  max-width: 600px;
  margin: 0 auto;
}
.player-center .player-controls { width: 100%; }

.player-row {
  display: grid;
  grid-template-columns: 280px 1fr 280px;
  align-items: center;
  gap: 16px;
}

.player-right {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
}

.volume-control {
  display: flex;
  align-items: center;
  gap: 8px;
}
.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 3px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px; height: 13px;
  background: white;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.6);
}

.listener-only-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  color: var(--accent-light);
}

/* ── Overlay: Connect Screen ─────────────────────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(9, 10, 15, 0.96);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.overlay-card {
  max-width: 440px;
  width: 100%;
  padding: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.overlay-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.overlay-card h2 { margin-bottom: 8px; }
.overlay-card p { margin-bottom: 28px; font-size: 0.95rem; }
.overlay-form { display: flex; flex-direction: column; gap: 16px; text-align: left; }

/* ── Responsive ──────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .room-page {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto auto;
    grid-template-areas:
      "header"
      "main"
      "sidebar"
      "player";
  }
  .room-sidebar {
    border-left: none;
    border-top: 1px solid var(--border);
    max-height: 280px;
  }
  .player-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .player-track-info { justify-content: center; }
  .player-right { justify-content: center; }
}

@media (max-width: 600px) {
  .room-header { padding: 12px 16px; }
  .room-main { padding: 14px 16px; }
  .now-playing-card { flex-direction: column; }
  .artwork-placeholder { width: 90px; height: 90px; font-size: 2.2rem; }
}

/* ── Autoplay Prompt Bar ─────────────────────────────────────────────────────── */
.autoplay-prompt-bar {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  background: var(--accent);
  color: #061019;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: 0.88rem;
  font-weight: 600;
  animation: toastIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: auto;
  border: 1px solid rgba(255, 255, 255, 0.15);
  white-space: nowrap;
}
.autoplay-prompt-bar button {
  background: rgba(6, 16, 25, 0.12);
  color: #061019;
  border: 1px solid rgba(6, 16, 25, 0.22);
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}
.autoplay-prompt-bar button:hover {
  background: rgba(255, 255, 255, 0.35);
}

/* ── My Rooms list styles ── */
.my-room-item {
  transition: transform 0.2s, border-color 0.2s;
}
.my-room-item:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2) !important;
}

/* Logo monochromatic inversion */
.index-logo img, .room-logo img {
  filter: invert(1);
}
:root.light-theme .index-logo img, 
:root.light-theme .room-logo img {
  filter: invert(0);
}

/* Theme Toggle Button */
.btn-theme-toggle {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 10px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.22s ease;
  box-shadow: var(--shadow-sm);
}
.btn-theme-toggle:hover {
  border-color: var(--border-focus);
  color: var(--text-primary);
  transform: translateY(-1px);
}
.btn-theme-toggle:active {
  transform: scale(0.95);
}

/* Fix light mode active states */
:root.light-theme .glass {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
}
:root.light-theme .btn-primary {
  background: var(--accent);
  color: #ffffff; /* White text on black button */
}
:root.light-theme .btn-primary:hover {
  background: var(--accent-light);
}
:root.light-theme .my-room-item:hover {
  border-color: rgba(0, 0, 0, 0.2) !important;
}
:root.light-theme .btn-ghost {
  border-color: var(--border);
  color: var(--text-secondary);
}
:root.light-theme .btn-ghost:hover {
  border-color: var(--border-focus);
  color: var(--text-primary);
}

:root.light-theme input[type="text"],
:root.light-theme input[type="url"],
:root.light-theme input[type="file"] {
  background: #ffffff;
  color: #000000;
  border: 1px solid var(--border);
}
:root.light-theme input[type="text"]:focus,
:root.light-theme input[type="url"]:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05), 0 0 12px rgba(0, 0, 0, 0.05);
}
:root.light-theme .add-tab.active {
  border-bottom: 2px solid var(--accent);
  color: var(--text-primary);
}
:root.light-theme .queue-item.active {
  background: var(--bg-hover);
}