/* ---------- Базовые настройки и переменные ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-main: #000000;
  --bg-sidebar: #0A0A0A;
  --bg-panel: #141414;
  --bg-panel-hover: #232323;
  --bg-player: rgba(10, 10, 10, 0.85);
  
  --text-main: #FFFFFF;
  --text-muted: #888888;
  --accent: #FFD600;
  --accent-hover: #FFE55C;
  
  --radius-card: 16px;
  --radius-btn: 99px;
  
  --player-h: 88px;
  --sidebar-w: 260px;
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html, body {
  height: 100%;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-family);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Каркас приложения ---------- */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: 1fr var(--player-h);
  grid-template-areas:
    "sidebar content"
    "player  player";
  height: 100vh;
}

/* ---------- Боковая панель (Sidebar) ---------- */
.sidebar {
  grid-area: sidebar;
  background-color: var(--bg-sidebar);
  padding: 24px 16px;
  overflow-y: auto;
  border-right: 1px solid #1A1A1A;
}

.logo {
  font-size: 24px;
  font-weight: 900;
  color: var(--accent);
  padding: 0 12px 24px;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.logo span { color: var(--text-main); }

.nav { display: flex; flex-direction: column; gap: 4px; margin-bottom: 32px; }
.nav-item {
  padding: 12px;
  border-radius: 8px;
  color: var(--text-main);
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  transition: background 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-item:hover { background-color: var(--bg-panel-hover); }
.nav-item.active { color: var(--accent); }

.playlists-title {
  color: var(--text-muted);
  font-size: 13px;
  text-transform: uppercase;
  padding: 0 12px 12px;
  letter-spacing: 1px;
  font-weight: 700;
}
.playlist-item {
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}
.playlist-item:hover { color: var(--text-main); background-color: var(--bg-panel-hover); }

/* ---------- Основной контент ---------- */
.content {
  grid-area: content;
  overflow-y: auto;
  padding: 32px 40px calc(var(--player-h) + 40px);
  scroll-behavior: smooth;
}

.content::-webkit-scrollbar { width: 8px; }
.content::-webkit-scrollbar-track { background: transparent; }
.content::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
.content::-webkit-scrollbar-thumb:hover { background: #555; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  gap: 16px;
  flex-wrap: wrap;
}

.greeting {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -1px;
  margin: 0;
}

/* Поиск */
.topbar-search {
  flex: 1;
  max-width: 400px;
  margin: 0 20px;
}
.topbar-search input {
  width: 100%;
  background-color: var(--bg-panel);
  border: 1px solid #333;
  color: var(--text-main);
  padding: 12px 20px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s, background-color 0.2s;
}
.topbar-search input::placeholder { color: var(--text-muted); }
.topbar-search input:focus {
  border-color: var(--accent);
  background-color: var(--bg-panel-hover);
}

/* Кнопки в топбаре */
.topbar-actions { display: flex; gap: 12px; }

.btn-ghost, .btn-accent {
  border: none;
  border-radius: var(--radius-btn);
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s, background 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-ghost {
  background: transparent;
  color: var(--text-main);
  border: 1px solid #333;
}
.btn-ghost:hover { background: var(--bg-panel-hover); border-color: #555; }
.btn-accent {
  background: var(--accent);
  color: #000;
}
.btn-accent:hover { background: var(--accent-hover); }
.btn-ghost:active, .btn-accent:active { transform: scale(0.96); }

/* Секции */
.section { margin-bottom: 48px; }
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 20px;
}
.section h2 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.counter {
  color: var(--text-muted);
  font-size: 16px;
  font-weight: 500;
}

/* ---------- Карточки (плитки) ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 24px;
}
.card {
  background: transparent;
  border-radius: var(--radius-card);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
  padding: 12px;
  margin: -12px;
}
.card:hover { background: var(--bg-panel); transform: translateY(-4px); }
.card .card-cover {
  width: 100%; aspect-ratio: 1; border-radius: 12px;
  background-color: var(--bg-panel); margin-bottom: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 48px; color: var(--text-muted);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  background-size: cover; background-position: center;
  transition: box-shadow 0.2s ease;
}
.card:hover .card-cover { box-shadow: 0 12px 32px rgba(0,0,0,0.6); }
.card .card-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card .card-sub { font-size: 14px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- Список треков ---------- */
.tracks { display: flex; flex-direction: column; gap: 4px; }
.track {
  display: grid; grid-template-columns: 40px 48px 1fr auto 40px;
  align-items: center; gap: 16px; padding: 8px 16px;
  border-radius: 8px; cursor: pointer; transition: background 0.15s ease;
}
.track:hover { background-color: var(--bg-panel-hover); }
.track.active { background-color: #1A1A1A; }
.track.active .t-title { color: var(--accent); }

.track .num { color: var(--text-muted); font-size: 15px; font-variant-numeric: tabular-nums; text-align: center; }
.track .thumb { width: 48px; height: 48px; border-radius: 6px; background-color: var(--bg-panel); background-size: cover; background-position: center; }
.track .info .t-title { font-size: 16px; font-weight: 600; margin-bottom: 4px; transition: color 0.15s; }
.track .info .t-artist { font-size: 14px; color: var(--text-muted); }
.track .t-dur { font-size: 14px; color: var(--text-muted); font-variant-numeric: tabular-nums; }

.track-like {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; transition: color 0.2s, transform 0.1s;
  opacity: 0; display: flex; align-items: center; justify-content: center;
  padding: 0;
}
.track:hover .track-like { opacity: 1; }
.track-like:hover { color: var(--text-main); transform: scale(1.1); }
.track-like.liked { color: var(--accent); opacity: 1; }

/* ---------- Нижний плеер ---------- */
.player {
  grid-area: player;
  display: grid; grid-template-columns: 1fr minmax(300px, 2fr) 1fr;
  align-items: center; gap: 24px;
  background: var(--bg-player); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255,255,255,0.05); padding: 0 24px; z-index: 10;
}
.now-playing { display: flex; align-items: center; gap: 16px; min-width: 0; }
.now-playing .cover { width: 56px; height: 56px; border-radius: 8px; background-color: var(--bg-panel); flex-shrink: 0; background-size: cover; background-position: center; display: flex; align-items: center; justify-content: center; color: var(--text-muted); box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
.now-playing .meta { min-width: 0; display: flex; flex-direction: column; gap: 4px;}
.now-playing .title { font-size: 15px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.now-playing .artist { font-size: 13px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;}

.center-controls { display: flex; flex-direction: column; align-items: center; gap: 8px; width: 100%;}
.buttons { display: flex; align-items: center; gap: 24px; }
.buttons button { background: none; border: none; color: var(--text-main); cursor: pointer; font-size: 20px; opacity: 0.7; transition: opacity 0.15s, transform 0.1s; display: flex; align-items: center; justify-content: center; }
.buttons button:hover { opacity: 1; transform: scale(1.05); }
.buttons button:active { transform: scale(0.95); }
.buttons .play { width: 44px; height: 44px; border-radius: 50%; background: var(--text-main); color: #000; font-size: 18px; opacity: 1; }
.buttons .play:hover { background: #E0E0E0; }

.progress-row { display: flex; align-items: center; gap: 12px; width: 100%; max-width: 600px; font-size: 12px; color: var(--text-muted); font-variant-numeric: tabular-nums; }

input[type=range] { -webkit-appearance: none; appearance: none; height: 4px; background: rgba(255,255,255,0.2); border-radius: 2px; cursor: pointer; outline: none; flex: 1; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%; background: var(--text-main); opacity: 0; transition: opacity 0.15s; }
input[type=range]:hover::-webkit-slider-thumb { opacity: 1; }
input[type=range]::-moz-range-thumb { width: 12px; height: 12px; border: none; border-radius: 50%; background: var(--text-main); }
input[type=range]#progress { background: linear-gradient(to right, var(--accent) 0%, var(--accent) var(--progress, 0%), rgba(255,255,255,0.2) var(--progress, 0%), rgba(255,255,255,0.2) 100%); }
input[type=range]#progress::-webkit-slider-thumb { background: var(--accent); }

.right-controls { display: flex; align-items: center; gap: 16px; justify-content: flex-end; }
.right-controls .like { background: none; border: none; color: var(--text-muted); cursor: pointer; transition: color 0.2s, transform 0.1s; display: flex; align-items: center; justify-content: center; padding: 0; }
.right-controls .like:hover { color: var(--text-main); transform: scale(1.1); }
.right-controls .like.liked { color: var(--accent); }
#volume { width: 100px; flex: none; }

/* ========================================================= */
/* ---------- ПОЛНОЭКРАННЫЙ ИНТЕРФЕЙС "МОЯ ВОЛНА" ---------- */
/* ========================================================= */

.wave-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: #000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.wave-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.wave-bg {
  position: absolute;
  inset: -20%;
  background-size: cover;
  background-position: center;
  filter: blur(80px) brightness(0.6) saturate(1.5);
  z-index: 0;
  transition: background-image 0.8s ease;
}

.wave-close {
  position: absolute;
  top: 32px;
  left: 32px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  z-index: 10;
  backdrop-filter: blur(10px);
  transition: background 0.2s, transform 0.1s;
}
.wave-close:hover { background: rgba(255, 255, 255, 0.2); transform: scale(1.05); }

.wave-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 800px;
  padding: 0 20px;
  text-align: center;
}

.wave-artist {
  font-size: 64px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 40px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.wave-cover-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin-bottom: 48px;
}

.wave-cover {
  width: 140px;
  height: 140px;
  border-radius: 12px;
  background-color: var(--bg-panel);
  background-size: cover;
  background-position: center;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  transition: background-image 0.4s ease;
}

.wave-title-pill {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 16px 32px;
  border-radius: var(--radius-btn);
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  min-width: 300px;
  max-width: 600px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.wave-controls {
  display: flex;
  align-items: center;
  gap: 24px;
}

.wave-btn-icon {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  transition: background 0.2s, transform 0.1s;
}
.wave-btn-icon:hover { background: rgba(255, 255, 255, 0.2); transform: scale(1.05); }
.wave-btn-icon:active { transform: scale(0.95); }
.wave-btn-icon.liked { color: var(--accent); background: rgba(255, 214, 0, 0.15); }

.wave-btn-play {
  background: #fff;
  border: none;
  color: #000;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  transition: transform 0.1s, background 0.2s;
}
.wave-btn-play:hover { transform: scale(1.05); background: #f0f0f0; }
.wave-btn-play:active { transform: scale(0.95); }

@media (max-width: 768px) {
  .wave-artist { font-size: 36px; margin-bottom: 24px; }
  .wave-cover { width: 100px; height: 100px; }
  .wave-title-pill { font-size: 16px; padding: 12px 24px; min-width: 200px; }
  .wave-controls { gap: 16px; }
  .wave-btn-icon { width: 40px; height: 40px; font-size: 16px; }
  .wave-btn-play { width: 64px; height: 64px; font-size: 24px; }
}