:root {
  --bg-dark: #070a12;
  --card-bg: rgba(13, 19, 36, 0.88);
  --card-border: rgba(59, 130, 246, 0.28);
  --card-border-glow: rgba(59, 130, 246, 0.5);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-color: #3b82f6;
  --accent-hover: #2563eb;
  --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --danger-color: #f87171;
  --danger-bg: rgba(239, 68, 68, 0.14);
  --warning-color: #fbbf24;
  --warning-border: rgba(245, 158, 11, 0.35);
  --warning-bg: rgba(245, 158, 11, 0.1);
  --success-color: #10b981;
  --input-bg: #090d16;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 32px);
  position: relative;
  overflow-x: hidden;
}

/* Base Background Layer Class */
.bg-layer {
  position: fixed;
  inset: 0;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  transition: opacity 0.8s ease-in-out;
  opacity: 0;
  z-index: 0;
  pointer-events: none;
  filter: brightness(0.85) contrast(1.05);
}

/* 1. Access View Background (Warm Family Home Theme) */
body.view-access #bgAccess {
  opacity: 1;
}

.bg-access {
  background-image: 
    linear-gradient(rgba(10, 15, 30, 0.3), rgba(10, 15, 30, 0.5)),
    url('bg-access.jpg'),
    url('bg-access.svg'),
    url('https://images.unsplash.com/photo-1511895426328-dc8714191300?q=80&w=1920&auto=format&fit=crop');
}

/* 2. Audio Player View Background (Vibrant Music & Family Listening Aura) */
body.view-player #bgPlayer {
  opacity: 1;
}

.bg-player {
  background-image: 
    linear-gradient(rgba(8, 14, 28, 0.25), rgba(8, 14, 28, 0.45)),
    url('bg-player.jpg'),
    url('bg-player.svg'),
    url('https://images.unsplash.com/photo-1543269865-cbf427effbad?q=80&w=1920&auto=format&fit=crop');
}

/* 3. Expired View Background (Twilight Archive Sunset Theme) */
body.view-expired #bgExpired {
  opacity: 1;
}

.bg-expired {
  background-image: 
    linear-gradient(rgba(15, 10, 20, 0.35), rgba(15, 10, 20, 0.55)),
    url('bg-expired.jpg'),
    url('bg-expired.svg'),
    url('https://images.unsplash.com/photo-1509198397868-475647b2a1e5?q=80&w=1920&auto=format&fit=crop');
}

/* Soft Vignette Border Layer */
.bg-overlay-vignette {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at center, rgba(5, 8, 17, 0.15) 0%, rgba(5, 8, 17, 0.7) 100%);
  z-index: 0;
  pointer-events: none;
}

.container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* Glassmorphic Card Container */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 6vw, 32px) clamp(20px, 5vw, 28px);
  box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.85), 0 18px 36px -18px rgba(0, 0, 0, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.1);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  width: 100%;
}

.card:hover {
  border-color: var(--card-border-glow);
}

.hidden {
  display: none !important;
}

/* Icon Header Pulse */
.icon-header {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.icon-pulse {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
}

.warning-pulse {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
  color: var(--warning-color);
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.2);
}

h2 {
  font-size: clamp(1.3rem, 4vw, 1.55rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 6px;
  letter-spacing: -0.4px;
}

.subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 22px;
  line-height: 1.45;
}

/* Top Header Bar inside Player View */
.card-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.badge-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.28);
  color: var(--success-color);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.status-dot {
  width: 7px;
  height: 7px;
  background: var(--success-color);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--success-color);
}

.session-timer {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--input-bg);
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--card-border);
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

.player-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  text-align: left;
}

.vault-icon {
  color: var(--accent-color);
  flex-shrink: 0;
}

.player-title-group h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

/* Availability Banner Notice */
.availability-notice {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-left: 3px solid var(--warning-color);
  color: #fef3c7;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-size: 0.83rem;
  line-height: 1.45;
  margin-bottom: 20px;
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.notice-icon {
  color: var(--warning-color);
  flex-shrink: 0;
  margin-top: 1px;
}

.availability-notice strong {
  color: var(--warning-color);
  font-weight: 600;
}

/* Access Code Hint Box */
.access-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  line-height: 1.4;
  margin-top: 12px;
  text-align: left;
}

.hint-icon {
  color: var(--accent-color);
  flex-shrink: 0;
}

.access-hint strong {
  color: #60a5fa;
  font-weight: 600;
}

/* Input Form */
.input-group {
  display: flex;
  gap: 10px;
  margin-bottom: 4px;
  width: 100%;
}

input[type="password"] {
  flex: 1;
  min-width: 0;
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 12px 16px;
  min-height: 48px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="password"]:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

button {
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  padding: 12px 22px;
  min-height: 48px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
  transition: all 0.2s ease;
}

button:hover {
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

.error-box {
  background: var(--danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: var(--danger-color);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  margin-top: 16px;
  text-align: left;
}

.expired-notice {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  border-left: 3px solid var(--warning-color);
  color: #fef3c7;
  padding: 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.5;
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

/* Track Selector */
.track-select-container {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  background: var(--input-bg);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  width: 100%;
}

.track-select-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 500;
}

.select-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}

.track-select-dropdown {
  width: 100%;
  background: var(--card-bg);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  padding: 8px 32px 8px 12px;
  min-height: 42px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.2s;
}

.track-select-dropdown:focus {
  border-color: var(--accent-color);
}

.select-arrow {
  position: absolute;
  right: 12px;
  color: var(--text-muted);
  pointer-events: none;
}

/* Custom Player Controls Box */
.player-controls {
  background: var(--input-bg);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--card-border);
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.main-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-circle {
  width: 52px;
  height: 52px;
  min-width: 52px;
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.45);
}

.btn-circle:hover {
  box-shadow: 0 0 28px rgba(59, 130, 246, 0.65);
}

.time-display {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.time-sep {
  opacity: 0.4;
  margin: 0 2px;
}

.slider-group {
  width: 100%;
}

.seek-container {
  width: 100%;
}

/* Custom Range Sliders */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  border: 2px solid #fff;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.6);
  transition: transform 0.15s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  border: 2px solid #fff;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.6);
}

.volume-container {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  width: 100%;
}

.vol-icon {
  flex-shrink: 0;
  opacity: 0.7;
}

.volume-container input[type="range"] {
  flex: 1;
}

/* Footer Lock Button */
.player-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 20px;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--card-border);
  padding: 8px 16px;
  min-height: 40px;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  box-shadow: none;
}

.btn-secondary:hover {
  background: rgba(239, 68, 68, 0.14);
  border-color: rgba(239, 68, 68, 0.35);
  color: var(--danger-color);
  box-shadow: none;
}

/* Responsive Media Queries */
@media (max-width: 440px) {
  .input-group {
    flex-direction: column;
  }

  button {
    width: 100%;
  }

  .card-top-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .track-select-container {
    flex-direction: column;
    align-items: stretch;
  }

  .track-select-dropdown {
    width: 100%;
  }
}