/* =========================================================================
   rAIdio — Public Website Design System
   ========================================================================= */

/* --- Reset & Base -------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0D1117;
  color: #E6EDF3;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: #6C5CE7; text-decoration: none; transition: color 0.2s; }
a:hover { color: #A29BFE; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* --- CSS Custom Properties ----------------------------------------------- */
:root {
  --primary: #6C5CE7;
  --primary-light: #A29BFE;
  --secondary: #00CEC9;
  --accent: #FD79A8;
  --live-red: #FF4757;
  --success: #2ED573;
  --warning: #FFA502;
  --bg-dark: #0D1117;
  --bg-card: #161B22;
  --bg-elevated: #1C2128;
  --bg-input: #21262D;
  --border: #30363D;
  --text-primary: #E6EDF3;
  --text-secondary: #8B949E;
  --text-muted: #6E7681;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --max-width: 1200px;
  --nav-height: 64px;
  --player-height: 80px;
}

/* --- Typography ---------------------------------------------------------- */
h1 { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.02em; line-height: 1.2; }
h2 { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.3; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.4; }
h4 { font-size: 1rem; font-weight: 600; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-primary-color { color: var(--primary); }
.text-secondary-color { color: var(--secondary); }
.mono { font-family: var(--font-mono); }

/* --- Layout -------------------------------------------------------------- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 4rem 0; }
.section-sm { padding: 2rem 0; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* --- Navigation ---------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(13, 17, 23, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  display: flex;
  align-items: center;
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}
.nav-logo .logo-r { color: var(--primary); }
.nav-logo .logo-ai { color: var(--accent); }
.nav-logo .logo-dio { color: var(--secondary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-primary); }
.nav-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 71, 87, 0.15);
  color: var(--live-red);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  animation: liveGlow 2s ease-in-out infinite;
}
.nav-live-dot {
  width: 8px;
  height: 8px;
  background: var(--live-red);
  border-radius: 50%;
  animation: livePulse 1.5s ease-in-out infinite;
}
@keyframes livePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
@keyframes liveGlow {
  0%, 100% { box-shadow: 0 0 8px rgba(255, 71, 87, 0.3); }
  50% { box-shadow: 0 0 16px rgba(255, 71, 87, 0.5); }
}
.nav-auth {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  padding: 0.5rem;
}

/* --- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  transition: all 0.2s;
}
.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover { background: #5A4BD1; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-input); border-color: var(--text-muted); }
.btn-accent {
  background: var(--accent);
  color: white;
}
.btn-accent:hover { background: #E84393; }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-elevated); }
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8rem; }
.btn-lg { padding: 0.875rem 2rem; font-size: 1rem; }
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* --- Cards --------------------------------------------------------------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all 0.2s;
}
.card:hover { border-color: var(--text-muted); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card-compact { padding: 1rem; }
.card-no-hover:hover { transform: none; box-shadow: none; }

/* --- Badges -------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge-primary { background: rgba(108, 92, 231, 0.15); color: var(--primary-light); }
.badge-accent { background: rgba(253, 121, 168, 0.15); color: var(--accent); }
.badge-secondary { background: rgba(0, 206, 201, 0.15); color: var(--secondary); }
.badge-live { background: rgba(255, 71, 87, 0.15); color: var(--live-red); }
.badge-muted { background: rgba(139, 148, 158, 0.15); color: var(--text-secondary); }

/* --- Forms --------------------------------------------------------------- */
.form-group { display: flex; flex-direction: column; gap: 0.375rem; }
.form-label { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.form-input {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.875rem;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color 0.2s;
}
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15); }
.form-input::placeholder { color: var(--text-muted); }
textarea.form-input { resize: vertical; min-height: 100px; }

/* --- Hero ---------------------------------------------------------------- */
.hero {
  padding: calc(var(--nav-height) + 4rem) 0 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero h1 { margin-bottom: 1rem; }
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.hero-stat { text-align: center; }
.hero-stat-value { font-size: 2rem; font-weight: 800; color: var(--primary-light); }
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* --- Now Playing --------------------------------------------------------- */
.now-playing {
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.1), rgba(253, 121, 168, 0.1));
  border: 1px solid rgba(108, 92, 231, 0.3);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
}
.now-playing.is-live {
  border-color: rgba(255, 71, 87, 0.4);
  background: linear-gradient(135deg, rgba(255, 71, 87, 0.08), rgba(108, 92, 231, 0.08));
}
.now-playing-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}
.now-playing-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.5rem; }
.now-playing-meta { color: var(--text-secondary); font-size: 0.9rem; }

/* --- Audio Player -------------------------------------------------------- */
.player {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.player-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: all 0.2s;
}
.player-btn:hover { background: #5A4BD1; transform: scale(1.05); }
.player-info { flex: 1; min-width: 0; }
.player-title { font-weight: 600; font-size: 0.95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player-subtitle { font-size: 0.8rem; color: var(--text-secondary); }
.player-progress {
  width: 100%;
  height: 4px;
  background: var(--bg-input);
  border-radius: 2px;
  margin-top: 0.5rem;
  overflow: hidden;
  cursor: pointer;
}
.player-progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: 2px;
  width: 0%;
  transition: width 0.3s;
}
.player-time { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-muted); }
.player-volume {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.player-volume input[type="range"] {
  width: 80px;
  accent-color: var(--primary);
}

/* --- Show Cards ---------------------------------------------------------- */
.show-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}
.show-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.2s;
  cursor: pointer;
}
.show-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.show-card-header {
  padding: 1.25rem 1.25rem 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.show-card-body { padding: 0.75rem 1.25rem 1.25rem; }
.show-card-title { font-weight: 700; font-size: 1.05rem; margin-bottom: 0.25rem; }
.show-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.show-card-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.75rem;
}
.show-card-play {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

/* --- Schedule ------------------------------------------------------------ */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.schedule-header {
  background: var(--bg-elevated);
  padding: 0.75rem;
  text-align: center;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.schedule-day {
  background: var(--bg-card);
  padding: 0.5rem;
  min-height: 120px;
}
.schedule-show {
  background: var(--bg-elevated);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  margin-bottom: 0.4rem;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}
.schedule-show:hover { background: var(--bg-input); }
.schedule-show-time { color: var(--text-muted); font-family: var(--font-mono); }
.schedule-show-title { font-weight: 600; margin-top: 0.15rem; }
.schedule-show.preset-morning_brief { border-color: var(--warning); }
.schedule-show.preset-tech_night { border-color: var(--primary); }
.schedule-show.preset-chaos_round { border-color: var(--accent); }
.schedule-show.preset-sport_blitz { border-color: var(--success); }
.schedule-show.preset-culture_club { border-color: var(--secondary); }

/* --- Hosts --------------------------------------------------------------- */
.hosts-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}
.host-card {
  text-align: center;
  padding: 2rem;
}
.host-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 800;
}
.host-avatar.host-a { background: linear-gradient(135deg, #10B981, #059669); }
.host-avatar.host-b { background: linear-gradient(135deg, #F59E0B, #D97706); }
.host-name { font-size: 1.5rem; font-weight: 800; margin-bottom: 0.25rem; }
.host-model { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 1rem; }
.host-role { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; }
.host-desc { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.5; margin-top: 1rem; }

/* --- Transcript ---------------------------------------------------------- */
.transcript {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.transcript-turn {
  display: flex;
  gap: 0.75rem;
}
.transcript-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.25rem;
}
.transcript-avatar.speaker-a { background: rgba(16, 185, 129, 0.2); color: #10B981; }
.transcript-avatar.speaker-b { background: rgba(245, 158, 11, 0.2); color: #F59E0B; }
.transcript-avatar.speaker-reader { background: rgba(0, 206, 201, 0.2); color: var(--secondary); }
.transcript-content { flex: 1; }
.transcript-name { font-weight: 600; font-size: 0.85rem; margin-bottom: 0.15rem; }
.transcript-text { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.5; }
.transcript-time { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-muted); }

/* --- Submissions (Slido-style) ------------------------------------------- */
.submission-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.submission-card {
  display: flex;
  gap: 1rem;
  padding: 1rem 1.25rem;
  align-items: flex-start;
}
.submission-votes {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  min-width: 48px;
}
.submission-vote-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  padding: 0.2rem;
  transition: color 0.2s;
  cursor: pointer;
}
.submission-vote-btn:hover { color: var(--primary); }
.submission-vote-btn.voted { color: var(--primary); }
.submission-vote-count { font-weight: 700; font-size: 1rem; }
.submission-body { flex: 1; }
.submission-text { font-size: 0.95rem; margin-bottom: 0.5rem; }
.submission-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.submission-status { display: flex; align-items: center; gap: 0.3rem; }
.submission-status.discussed { color: var(--success); }

/* --- Footer -------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  margin-top: 4rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
}
.footer-brand p { color: var(--text-secondary); font-size: 0.85rem; margin-top: 0.75rem; max-width: 300px; }
.footer-heading { font-weight: 600; font-size: 0.85rem; margin-bottom: 1rem; color: var(--text-primary); }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a { color: var(--text-secondary); font-size: 0.85rem; }
.footer-links a:hover { color: var(--text-primary); }
.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Countdown ----------------------------------------------------------- */
.countdown {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}
.countdown-unit { text-align: center; }
.countdown-value {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--primary-light);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.5rem 1rem;
  min-width: 70px;
}
.countdown-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 0.3rem; }

/* --- Auth Pages ---------------------------------------------------------- */
.auth-container {
  max-width: 400px;
  margin: 0 auto;
  padding-top: calc(var(--nav-height) + 3rem);
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.auth-title { text-align: center; margin-bottom: 1.5rem; }
.auth-form { display: flex; flex-direction: column; gap: 1rem; }
.auth-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin: 0.5rem 0;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.auth-footer { text-align: center; font-size: 0.85rem; color: var(--text-secondary); margin-top: 1rem; }
.auth-error {
  background: rgba(255, 71, 87, 0.1);
  border: 1px solid rgba(255, 71, 87, 0.3);
  color: var(--live-red);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  display: none;
}
.auth-success {
  background: rgba(46, 213, 115, 0.1);
  border: 1px solid rgba(46, 213, 115, 0.3);
  color: var(--success);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  display: none;
}

/* --- How It Works -------------------------------------------------------- */
.how-it-works {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}
.how-step {
  text-align: center;
  padding: 1.5rem 1rem;
}
.how-step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(108, 92, 231, 0.15);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin: 0 auto 1rem;
}
.how-step h4 { margin-bottom: 0.5rem; }
.how-step p { font-size: 0.85rem; color: var(--text-secondary); }

/* --- Features ------------------------------------------------------------ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-card {
  padding: 1.5rem;
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.feature-card h3 { margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); }

/* --- Loading ------------------------------------------------------------- */
.loading-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-elevated) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* --- Toast --------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: calc(var(--player-height) + 1rem);
  right: 1rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  animation: slideIn 0.3s ease;
  max-width: 350px;
}
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* --- Sticky Player ------------------------------------------------------- */
.sticky-player {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--player-height);
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  z-index: 99;
  display: none;
  align-items: center;
  padding: 0 1.5rem;
  gap: 1rem;
}
.sticky-player.active { display: flex; }
body.has-player { padding-bottom: var(--player-height); }

/* --- Empty State --------------------------------------------------------- */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-secondary);
}
.empty-state-icon { font-size: 3rem; margin-bottom: 1rem; }
.empty-state p { max-width: 400px; margin: 0 auto; }

/* --- Responsive ---------------------------------------------------------- */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .how-it-works { grid-template-columns: repeat(2, 1fr); }
  .schedule-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.35rem; }
  .section { padding: 2.5rem 0; }
  .container { padding: 0 1rem; }
  .nav-links { display: none; }
  .nav-hamburger { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    gap: 1rem;
  }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .how-it-works { grid-template-columns: 1fr; }
  .hosts-section { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 1.5rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .schedule-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .countdown { gap: 0.75rem; }
  .countdown-value { font-size: 1.5rem; min-width: 55px; padding: 0.3rem 0.6rem; }
  .show-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  .hero { padding: calc(var(--nav-height) + 2rem) 0 2rem; }
}

/* --- Page Content Offset ------------------------------------------------- */
.page-content {
  padding-top: calc(var(--nav-height) + 2rem);
  min-height: 100vh;
}

/* --- Utility ------------------------------------------------------------- */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.w-full { width: 100%; }