/* ==========================================================================
   HAYBEAT — Радар Трендов Армянской Музыки
   Custom Design System (Obsidian, Pomegranate Crimson, Apricot Gold, Violet)
   ========================================================================== */

:root {
  --bg-main: #090b10;
  --bg-elevated: #111520;
  --bg-card: #151a28;
  --bg-card-hover: #1b2234;
  --bg-glass: rgba(21, 26, 40, 0.82);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(242, 168, 0, 0.35);
  --text-primary: #f3f5f9;
  --text-secondary: #9ba3b8;
  --text-muted: #646d84;
  --accent-red: #e11d48;
  --accent-apricot: #f59e0b;
  --accent-blue: #3b82f6;
  --accent-violet: #8b5cf6;
  --accent-emerald: #10b981;
  --gradient-armenian: linear-gradient(135deg, #e11d48 0%, #2563eb 50%, #f59e0b 100%);
  --gradient-fire: linear-gradient(135deg, #f59e0b 0%, #e11d48 100%);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
}

html.light {
  --bg-main: #f4f6fb;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8faff;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --border-subtle: rgba(15, 23, 42, 0.09);
  --border-highlight: rgba(225, 29, 72, 0.35);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --shadow-card: 0 10px 25px -8px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  padding-bottom: 108px;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: rgba(155, 163, 184, 0.25);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(155, 163, 184, 0.45);
}

/* Armenian Flag Top Ribbon */
.arm-ribbon {
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, #d90012 0%, #d90012 33.3%, #0033a0 33.3%, #0033a0 66.6%, #f2a800 66.6%, #f2a800 100%);
}

/* Glass Header */
.glass-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

/* Surface Cards */
.hb-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.hb-card:hover {
  border-color: rgba(245, 158, 11, 0.28);
}

.hb-card-interactive:hover {
  transform: translateY(-2px);
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
}

/* Playing Track Highlight */
.track-is-playing {
  border-color: #f59e0b !important;
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.4), 0 12px 28px -8px rgba(225, 29, 72, 0.35) !important;
}

/* Equalizer Animation for Playing Track */
.eq-bars {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
}
.eq-bar {
  width: 3px;
  background: #f59e0b;
  border-radius: 2px;
  animation: eqBounce 0.8s infinite ease-in-out alternate;
}
.eq-bar:nth-child(2) {
  animation-delay: 0.2s;
}
.eq-bar:nth-child(3) {
  animation-delay: 0.4s;
}
@keyframes eqBounce {
  0% { height: 3px; }
  100% { height: 14px; }
}

/* Navigation Tabs */
.nav-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.nav-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}
.nav-tab.active {
  color: #ffffff;
  background: var(--gradient-fire);
  box-shadow: 0 4px 16px rgba(225, 29, 72, 0.35);
}

/* Filter Chips */
.chip-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.chip-btn:hover {
  color: var(--text-primary);
  border-color: rgba(245, 158, 11, 0.4);
}
.chip-btn.active {
  color: #fff;
  background: #e11d48;
  border-color: #e11d48;
  box-shadow: 0 2px 10px rgba(225, 29, 72, 0.3);
}

/* Trend Score Ring */
.score-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 26px;
  padding: 0 8px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
}
.score-high {
  background: rgba(245, 158, 11, 0.16);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.35);
}
.score-mid {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.35);
}
.score-base {
  background: rgba(148, 163, 184, 0.14);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

/* Persistent Bottom Audio Player */
.player-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(13, 17, 27, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(245, 158, 11, 0.28);
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.6);
}

html.light .player-bar {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 -8px 25px rgba(15, 23, 42, 0.1);
}

/* Range Input Styling */
input[type="range"].hb-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 5px;
  background: rgba(148, 163, 184, 0.25);
  border-radius: 999px;
  outline: none;
  cursor: pointer;
}
input[type="range"].hb-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #f59e0b;
  cursor: pointer;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.8);
}

/* Cover Art Overlay */
.cover-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  flex-shrink: 0;
}
.cover-overlay {
  position: absolute;
  inset: 0;
  background: rgba(9, 11, 16, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.18s ease;
}
.cover-wrap:hover .cover-overlay,
.cover-wrap.active-cover .cover-overlay {
  opacity: 1;
}

/* Spinner */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.animate-spin-fast {
  animation: spin 0.8s linear infinite;
}