/* --- Глобальные переменные и базовые стили --- */
:root {
    --primary-color: #00e0ff;
    --primary-color-rgb: 0, 224, 255;
    --glow-color: rgba(0, 224, 255, 0.5);
    --background-color: #000000;
    --sidebar-bg: #080808;
    --content-bg: #121212;
    --playback-bar-bg: #181818;
    --panel-bg: #282828;
    --fullscreen-bg: linear-gradient(180deg, #303030 0%, #121212 100%);
    --text-color: #ffffff;
    --text-color-subtle: #b3b3b3;
    --placeholder-bg: #333;
    --playback-bar-height: 90px;
    --sidebar-width: 240px;
    --item-hover-bg: #2a2a2a;
    --item-active-bg: #383838;
    --button-active-color: var(--primary-color);
    --like-color: #1db954;
    --progress-bar-bg: #535353;
    --progress-bar-fg: #b3b3b3;
    --progress-bar-fg-hover: #ffffff;
    --thumb-color: #ffffff;
    --thumb-hover-color: var(--primary-color);
    --border-color: #404040;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    overflow: hidden;
    font-size: 15px;
}

#app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
}

/* --- Сайдбар --- */
#sidebar {
    width: var(--sidebar-width);
    height: calc(100% - var(--playback-bar-height));
    background-color: var(--sidebar-bg);
    padding: 24px 12px;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.3s ease;
    z-index: 100;
    border-right: 1px solid var(--border-color);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0;
    color: var(--text-color);
    flex-shrink: 0;
}

.sidebar-logo i { color: var(--primary-color); }
.sidebar-logo span { font-size: 1.4em; font-weight: bold; white-space: nowrap; }

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0 0 15px 0;
    overflow-y: auto;
    flex-grow: 1;
}

.sidebar-nav::-webkit-scrollbar { width: 6px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: var(--progress-bar-bg); border-radius: 3px; }
.sidebar-nav::-webkit-scrollbar-thumb:hover { background: var(--progress-bar-fg); }

.sidebar-nav li a.nav-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 12px;
    border-radius: 6px;
    color: var(--text-color-subtle);
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
    margin-bottom: 6px;
    white-space: nowrap;
}

.sidebar-nav li a.nav-link:hover { color: var(--text-color); background-color: var(--item-hover-bg); }
.sidebar-nav li a.nav-link.active { color: var(--text-color); background-color: var(--item-active-bg); }
.sidebar-nav li a.nav-link i { width: 22px; text-align: center; font-size: 1.2em; flex-shrink: 0; }
.sidebar-nav li a.nav-link span { flex-grow: 1; }

.sidebar-footer {
    margin-top: auto;
    padding: 10px 12px 0 12px;
    flex-shrink: 0;
    border-top: 1px solid var(--border-color);
}

.sidebar-file-label {
    display: flex !important;
    align-items: center;
    gap: 16px;
    justify-content: flex-start;
    padding: 12px 12px;
    margin-top: 10px;
    background-color: transparent;
    color: var(--text-color-subtle);
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
    font-size: 0.95em;
    font-weight: 500;
    border: none;
    text-align: left;
    width: 100%;
    white-space: nowrap;
}

.sidebar-header-flex {
    display: flex;
    align-items: center;
    padding: 15px 15px 10px 15px;
    gap: 15px;
}

a.back-to-hub {
    color: var(--text-color-subtle);
    font-size: 1.3em;
    text-decoration: none;
    padding: 6px;
    border-radius: 50%;
    transition: color 0.2s ease, background-color 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

a.back-to-hub:hover {
    color: var(--text-color);
    background-color: var(--item-hover-bg);
}

a.back-to-hub:active {
    transform: scale(0.95);
}

.sidebar-file-label:hover { background-color: var(--item-hover-bg); color: var(--text-color); }
.sidebar-file-label i { width: 22px; text-align: center; font-size: 1.1em; flex-shrink: 0; }
.sidebar-file-label span { flex-grow: 1; }

/* --- Область Контента --- */
#content-area {
    flex-grow: 1;
    height: calc(100% - var(--playback-bar-height));
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--content-bg);
}

#top-bar {
    padding: 15px 30px;
    background-color: var(--content-bg);
    flex-shrink: 0;
    z-index: 50;
    border-bottom: 1px solid var(--border-color);
}

.search-section { display: flex; max-width: 450px; gap: 10px; }

#searchInput {
    flex-grow: 1;
    padding: 10px 18px;
    border: none;
    background-color: var(--panel-bg);
    color: var(--text-color);
    border-radius: 50px;
    font-size: 0.95em;
    outline: none;
    transition: background-color 0.2s, box-shadow 0.2s;
}

#searchInput::placeholder { color: var(--text-color-subtle); }
#searchInput:focus {
    background-color: var(--item-hover-bg);
    box-shadow: 0 0 0 2px rgba(var(--primary-color-rgb), 0.5);
}

#searchButton {
    background-color: transparent;
    color: var(--text-color-subtle);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.1em;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: color 0.2s ease, background-color 0.2s ease;
    flex-shrink: 0;
}

#searchButton:hover {
    color: var(--text-color);
    background-color: var(--item-hover-bg);
}

#main-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 30px;
    scroll-behavior: smooth;
}

#main-content::-webkit-scrollbar { width: 8px; }
#main-content::-webkit-scrollbar-track { background: var(--content-bg); }
#main-content::-webkit-scrollbar-thumb { background: var(--progress-bar-bg); border-radius: 4px; }
#main-content::-webkit-scrollbar-thumb:hover { background: var(--progress-bar-fg); }

.content-view { display: none; animation: fadeIn 0.3s ease-in-out; }
.content-view.active { display: block; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

#home-view h2, #liked-view h2, #playlists-view h2 {
    margin-top: 0;
    margin-bottom: 30px;
    font-size: 1.8em;
    font-weight: 700;
}

.search-results-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 24px;
}

.chart-item {
    background-color: var(--panel-bg);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: background-color 0.2s ease;
    position: relative;
    cursor: pointer;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.chart-item:hover { background-color: var(--item-hover-bg); }
.chart-item:hover .play-item-btn { opacity: 1; transform: translateY(0) scale(1); box-shadow: 0 4px 8px rgba(0,0,0,0.3); }

.chart-item img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 6px;
    background-color: var(--placeholder-bg);
    margin-bottom: 4px;
}

.chart-item-info { display: flex; flex-direction: column; gap: 5px; overflow: hidden; }
.chart-item-title {
    font-weight: 600;
    font-size: 1em;
    color: var(--text-color);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.chart-item-artist {
    font-size: 0.88em;
    color: var(--text-color-subtle);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.play-item-btn {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: #000;
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    font-size: 1.1em;
    display: flex; justify-content: center; align-items: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(10px) scale(0.9);
    transition: opacity 0.2s ease, transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
    z-index: 5;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.play-item-btn:hover { background-color: #33ebff; transform: translateY(0) scale(1.05); }

.chart-item.liked-item .remove-liked-btn {
    position: absolute; top: 10px; right: 10px; background: rgba(0, 0, 0, 0.6);
    color: var(--text-color-subtle); border: none; border-radius: 50%; width: 28px; height: 28px;
    font-size: 0.8em; display: flex; justify-content: center; align-items: center;
    cursor: pointer; opacity: 0.8; transition: opacity 0.2s, color 0.2s; z-index: 6;
}

.chart-item.liked-item .remove-liked-btn:hover { opacity: 1; color: var(--text-color); }

.loading-text { color: var(--text-color-subtle); text-align: center; margin-top: 40px; font-size: 1.1em; }

/* --- Плейлисты --- */
#playlists-view {
    display: flex;
    flex-direction: column;
}

#create-playlist-btn {
    background-color: var(--primary-color);
    color: #000;
    border: none;
    border-radius: 6px;
    padding: 10px 20px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-bottom: 30px;
    align-self: flex-start;
}

#create-playlist-btn:hover {
    background-color: #33ebff;
}

#create-playlist-btn.hidden {
    display: none !important;
}

#playlists-list .playlist-item {
    background-color: var(--panel-bg);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    transition: background-color 0.2s ease;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    margin-bottom: 12px;
}

#playlists-list .playlist-item:hover {
    background-color: var(--item-hover-bg);
}

#playlists-list .playlist-item span {
    font-weight: 600;
    font-size: 1em;
    color: var(--text-color);
    flex-grow: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.play-playlist-btn {
    background-color: var(--primary-color);
    color: #000;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1em;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s;
}

.play-playlist-btn:hover {
    background-color: #33ebff;
    transform: scale(1.05);
}

/* --- Нижняя панель воспроизведения --- */
#playback-bar {
    position: fixed;
    bottom: 0; left: 0;
    width: 100%;
    height: var(--playback-bar-height);
    background-color: var(--playback-bar-bg);
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: minmax(180px, 1fr) 1.5fr minmax(220px, 1fr);
    align-items: center;
    padding: 0 24px;
    z-index: 1000;
    gap: 24px;
}

.pb-track-info { grid-column: 1 / 2; display: flex; align-items: center; gap: 14px; min-width: 0; overflow: hidden; cursor: pointer; }
#pb-album-art { width: 56px; height: 56px; border-radius: 4px; object-fit: cover; background-color: var(--placeholder-bg); flex-shrink: 0; display: block; }
.pb-text { overflow: hidden; margin-right: 10px; flex-grow: 1; }
#pb-track-title { font-size: 0.95em; font-weight: 500; color: var(--text-color); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 5px; }
#pb-track-artist { font-size: 0.8em; color: var(--text-color-subtle); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.pb-controls-progress { grid-column: 2 / 3; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 100%; max-width: 700px; margin: 0 auto; min-width: 0; }
.pb-controls { display: flex; align-items: center; gap: 18px; margin-bottom: 10px; flex-wrap: nowrap; }
.pb-button { background: none; border: none; color: var(--text-color-subtle); font-size: 1.2em; cursor: pointer; padding: 5px; transition: color 0.15s ease; position: relative; line-height: 1; }
.pb-button:hover:not(:disabled) { color: var(--text-color); }
.pb-button:disabled { opacity: 0.4; cursor: not-allowed; }
.pb-button.active { color: var(--button-active-color); }

#pb-add-to-playlist-btn {
    font-size: 1.15em;
    margin-left: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#pb-add-to-playlist-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pb-play-pause { background-color: var(--text-color); color: #000; border-radius: 50%; width: 38px; height: 38px; font-size: 1em; display: flex; justify-content: center; align-items: center; margin: 0 5px; transition: transform 0.1s ease, background-color 0.2s ease; }
.pb-play-pause:hover:not(:disabled) { background-color: #f0f0f0; transform: scale(1.05); }
.pb-play-pause i { transition: none; }

#pb-repeat-btn.repeat-one::after, #fs-repeat-btn.repeat-one::after { content: ''; position: absolute; bottom: -4px; left: 50%; transform: translateX(-50%); width: 4px; height: 4px; background-color: var(--button-active-color); border-radius: 50%; }

.pb-progress-container { display: flex; align-items: center; width: 100%; gap: 12px; }
.pb-progress-container span { font-size: 0.78em; color: var(--text-color-subtle); min-width: 40px; text-align: center; user-select: none; }
#pb-progress-bar { flex-grow: 1; cursor: pointer; appearance: none; -webkit-appearance: none; width: 100%; height: 5px; background: var(--progress-bar-bg); border-radius: 2.5px; outline: none; position: relative; overflow: hidden; }
#pb-progress-bar::before { content: ''; display: block; position: absolute; top: 0; left: 0; height: 100%; background-color: var(--progress-bar-fg); width: var(--progress-percent, 0%); border-radius: 2.5px; transition: background-color 0.1s ease, width 0.05s linear; }
#pb-progress-bar:hover::before { background-color: var(--progress-bar-fg-hover); }
#pb-progress-bar::-webkit-slider-thumb { appearance: none; -webkit-appearance: none; width: 14px; height: 14px; background: var(--thumb-color); border-radius: 50%; cursor: pointer; opacity: 0; transition: opacity 0.2s ease, background-color 0.15s ease; position: relative; z-index: 2; border: none; }
#pb-progress-bar::-moz-range-thumb { width: 14px; height: 14px; background: var(--thumb-color); border-radius: 50%; cursor: pointer; border: none; opacity: 0; transition: opacity 0.2s ease, background-color 0.15s ease; position: relative; z-index: 2; }
#playback-bar:hover #pb-progress-bar::-webkit-slider-thumb, #playback-bar:hover #pb-progress-bar::-moz-range-thumb,
#pb-progress-bar:active::-webkit-slider-thumb, #pb-progress-bar:active::-moz-range-thumb { opacity: 1; }
#playback-bar:hover #pb-progress-bar { height: 8px; transform: translateY(-1.5px); }
#pb-progress-bar:hover::-webkit-slider-thumb { background-color: var(--thumb-hover-color); }
#pb-progress-bar:hover::-moz-range-thumb { background-color: var(--thumb-hover-color); }

.pb-controls-right { grid-column: 3 / 4; display: flex; align-items: center; justify-content: flex-end; gap: 16px; min-width: 0; overflow: visible; }
.pb-like-btn { font-size: 1.25em; }
.pb-like-btn.liked { color: var(--like-color); }
.pb-like-btn.liked i::before { font-weight: 900; content: "\f004"; }
.pb-like-btn i::before { font-weight: 400; content: "\f004"; }

.pb-volume { display: flex; align-items: center; gap: 10px; }
.pb-volume i { color: var(--text-color-subtle); font-size: 1.15em; width: 20px; text-align: center; cursor: pointer; transition: color 0.15s ease; }
.pb-volume i:hover { color: var(--text-color); }

#pb-volume-slider { appearance: none; -webkit-appearance: none; width: 90px; height: 5px; background: var(--progress-bar-bg); border-radius: 2.5px; outline: none; cursor: pointer; position: relative; overflow: hidden; }
#pb-volume-slider::before { content: ''; display: block; position: absolute; top: 0; left: 0; height: 100%; background-color: var(--progress-bar-fg); width: var(--volume-percent, 80%); border-radius: 2.5px; transition: background-color 0.1s ease; }
#pb-volume-slider:hover::before { background-color: var(--progress-bar-fg-hover); }
#pb-volume-slider::-webkit-slider-thumb { appearance: none; -webkit-appearance: none; width: 14px; height: 14px; background: var(--thumb-color); border-radius: 50%; cursor: pointer; opacity: 0; transition: opacity 0.2s ease, background-color 0.15s ease; position: relative; z-index: 2; border: none; }
#pb-volume-slider::-moz-range-thumb { width: 14px; height: 14px; background: var(--thumb-color); border-radius: 50%; cursor: pointer; border: none; opacity: 0; transition: opacity 0.2s ease, background-color 0.15s ease; position: relative; z-index: 2; }
.pb-volume:hover #pb-volume-slider::-webkit-slider-thumb, .pb-volume:hover #pb-volume-slider::-moz-range-thumb,
#pb-volume-slider:active::-webkit-slider-thumb, #pb-volume-slider:active::-moz-range-thumb { opacity: 1; }
.pb-volume:hover #pb-volume-slider { height: 8px; transform: translateY(-1.5px); }
#pb-volume-slider:hover::-webkit-slider-thumb { background-color: var(--thumb-hover-color); }
#pb-volume-slider:hover::-moz-range-thumb { background-color: var(--thumb-hover-color); }

/* --- ПАНЕЛЬ ЭКВАЛАЙЗЕРА --- */
#eq-panel {
    position: absolute;
    bottom: calc(var(--playback-bar-height) + 12px);
    right: 24px;
    width: 380px;
    max-width: calc(100vw - 48px);
    background-color: var(--panel-bg);
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    padding: 20px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0.25s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

#eq-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.eq-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0;
}

.eq-header span {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--text-color);
}

.eq-switch { position: relative; display: inline-block; width: 50px; height: 28px; }
.eq-switch input { display: none; }
.eq-slider-toggle { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #555; transition: .3s; border-radius: 28px; }
.eq-slider-toggle:before { position: absolute; content: ""; height: 22px; width: 22px; left: 3px; bottom: 3px; background-color: white; transition: .3s; border-radius: 50%; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
input:checked + .eq-slider-toggle { background-color: var(--button-active-color); }
input:disabled + .eq-slider-toggle { background-color: #444; cursor: not-allowed; opacity: 0.6; }
input:checked + .eq-slider-toggle:before { transform: translateX(22px); }

.eq-bands {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    height: 150px;
    padding: 25px 0 25px 0;
    position: relative;
}

.eq-band {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    position: relative;
    width: auto;
    flex-grow: 1;
    text-align: center;
}

.eq-db-label {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75em;
    color: var(--text-color);
    background-color: rgba(0,0,0,0.7);
    padding: 2px 4px;
    border-radius: 3px;
    min-width: 32px;
    text-align: center;
    user-select: none;
    line-height: 1.2;
    z-index: 3;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease-in-out;
}

.eq-band:hover .eq-db-label { opacity: 1; }

#eq-panel .eq-bands .eq-band input[type="range"] {
    appearance: none; -webkit-appearance: none;
    width: calc(100% - -20px);
    height: 6px;
    cursor: pointer; margin: 0; padding: 0; border: none;
    background: transparent;
    position: absolute; top: 50%; left: 50%;
    transform-origin: center center;
    transform: translate(-50%, -50%) rotate(-90deg);
    z-index: 2;
}

#eq-panel .eq-bands .eq-band input[type="range"]::-webkit-slider-runnable-track {
    width: 100%; height: 100%; background: #555; border-radius: 3px; transition: background-color 0.15s ease;
}

#eq-panel .eq-bands .eq-band input[type="range"]:hover::-webkit-slider-runnable-track { background: #666; }

#eq-panel .eq-bands .eq-band input[type="range"]::-moz-range-track {
    width: 100%; height: 100%; background: #555; border-radius: 3px; transition: background-color 0.15s ease; border: none;
}

#eq-panel .eq-bands .eq-band input[type="range"]:hover::-moz-range-track { background: #666; }

#eq-panel .eq-bands .eq-band input[type="range"]::-webkit-slider-thumb {
    appearance: none; -webkit-appearance: none;
    width: 18px; height: 18px; background: var(--thumb-color); border-radius: 50%;
    cursor: pointer; border: none; box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    transition: background-color 0.15s ease, transform 0.1s ease;
    margin-top: -6px;
}

#eq-panel .eq-bands .eq-band input[type="range"]:hover::-webkit-slider-thumb { background-color: var(--thumb-hover-color); }
#eq-panel .eq-bands .eq-band input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.1); }

#eq-panel .eq-bands .eq-band input[type="range"]::-moz-range-thumb {
    width: 18px; height: 18px; background: var(--thumb-color); border-radius: 50%;
    cursor: pointer; border: none; box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    transition: background-color 0.15s ease;
}

#eq-panel .eq-bands .eq-band input[type="range"]:hover::-moz-range-thumb { background-color: var(--thumb-hover-color); }

#eq-panel .eq-bands .eq-band input[type="range"]:disabled { cursor: not-allowed; opacity: 0.5; }
#eq-panel .eq-bands .eq-band input[type="range"]:disabled::-webkit-slider-runnable-track { background: #444; }
#eq-panel .eq-bands .eq-band input[type="range"]:disabled::-moz-range-track { background: #444; }
#eq-panel .eq-bands .eq-band input[type="range"]:disabled::-webkit-slider-thumb { background: #888; box-shadow: none; transform: none; }
#eq-panel .eq-bands .eq-band input[type="range"]:disabled::-moz-range-thumb { background: #888; box-shadow: none; }

.eq-freq-label {
    font-size: 0.8em;
    color: var(--text-color-subtle);
    text-align: center;
    user-select: none;
    width: 100%;
    padding-top: 5px;
}

.eq-presets { margin-top: 0; }
#eq-preset-select {
    width: 100%; padding: 10px 14px;
    background-color: #383838; color: var(--text-color);
    border: 1px solid var(--border-color); border-radius: 6px; font-size: 0.95em;
    cursor: pointer; outline: none; appearance: none; -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23b3b3b3' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 14px center;
    padding-right: 40px; transition: background-color 0.15s ease, border-color 0.15s ease;
}

#eq-preset-select:hover { background-color: #404040; border-color: #666; }
#eq-preset-select:disabled { background-color: #404040; color: var(--text-color-subtle); cursor: not-allowed; opacity: 0.7; background-image: none; }
#eq-preset-select option { background-color: #383838; color: var(--text-color); }

#eq-panel.controls-disabled { opacity: 0.7; pointer-events: none; }
#eq-panel.controls-disabled .eq-header, #eq-panel.controls-disabled .eq-presets { pointer-events: auto; }
#eq-panel.controls-disabled .eq-switch { pointer-events: auto; }

/* --- Полноэкранный режим плеера --- */
#fullscreen-player { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--fullscreen-bg); z-index: 2000; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 30px 30px 30px; opacity: 0; visibility: hidden; transform: translateY(20px); transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease; overflow: hidden; }
#fullscreen-player.active { opacity: 1; visibility: visible; transform: translateY(0); }
.fs-top-bar { position: absolute; top: 15px; left: 15px; right: 15px; display: flex; justify-content: space-between; align-items: center; width: calc(100% - 30px); z-index: 11; }
#fs-close-btn { background: rgba(0, 0, 0, 0.3); border: none; color: var(--text-color-subtle); border-radius: 50%; width: 40px; height: 40px; font-size: 1.2em; cursor: pointer; display: flex; justify-content: center; align-items: center; transition: background-color 0.2s, color 0.2s; }
#fs-close-btn:hover { background-color: rgba(0, 0, 0, 0.5); color: var(--text-color); }
.fs-header-info { color: var(--text-color-subtle); font-size: 0.9em; }
.fs-main-content { display: flex; flex-direction: column; align-items: center; justify-content: center; flex-grow: 1; width: 100%; max-width: 600px; margin-top: 30px; }
.fs-art-visualizer-wrapper { position: relative; width: clamp(200px, 50vh, 350px); max-width: 90%; aspect-ratio: 1 / 1; margin-bottom: 40px; display: flex; justify-content: center; align-items: center; }
#fs-album-art { width: 80%; height: 80%; border-radius: 50%; overflow: hidden; background-color: var(--placeholder-bg); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4); display: flex; justify-content: center; align-items: center; position: relative; z-index: 1; }
#fs-album-art-img { display: block; width: 100%; height: 100%; object-fit: cover; }
#visualizerCanvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; }
.fs-track-controls-wrapper { width: 100%; display: flex; flex-direction: column; align-items: center; gap: 25px; }
#fs-track-info { text-align: center; }
#fs-track-title { font-size: 1.6em; font-weight: 600; margin-bottom: 8px; color: var(--text-color); }
#fs-track-artist { font-size: 1em; color: var(--text-color-subtle); }
.fs-controls { display: flex; align-items: center; justify-content: center; gap: 30px; width: 100%; }
.fs-button { background: none; border: none; color: var(--text-color-subtle); cursor: pointer; padding: 8px; font-size: 1.1em; transition: color 0.2s ease, transform 0.1s ease; line-height: 1; }
.fs-button:hover:not(:disabled) { color: var(--text-color); }
.fs-button:active:not(:disabled) { transform: scale(0.95); }
.fs-button:disabled { opacity: 0.4; cursor: not-allowed; }
.fs-button.active { color: var(--button-active-color); }
.fs-play-pause { font-size: 3.2em; color: var(--text-color); padding: 0; margin: 0 10px; }
.fs-play-pause:hover:not(:disabled) { color: var(--primary-color); transform: scale(1.05); }
.fs-like-btn { font-size: 1.5em; color: var(--text-color-subtle); }
.fs-like-btn.liked { color: var(--like-color); }
.fs-like-btn.liked i::before { font-weight: 900; content: "\f004"; }
.fs-like-btn i::before { font-weight: 400; content: "\f004"; }

#youtubePlayerContainer { position: absolute; top: -9999px; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* --- Модальное окно --- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 3000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--panel-bg);
    border-radius: 12px;
    padding: 24px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    color: var(--text-color);
}

.modal-content::-webkit-scrollbar { width: 6px; }
.modal-content::-webkit-scrollbar-track { background: transparent; }
.modal-content::-webkit-scrollbar-thumb { background: var(--progress-bar-bg); border-radius: 3px; }
.modal-content::-webkit-scrollbar-thumb:hover { background: var(--progress-bar-fg); }

.modal-content h2 {
    margin-top: 0;
    font-size: 1.6em;
    font-weight: 700;
}

.modal-content p {
    color: var(--text-color-subtle);
    margin-bottom: 20px;
}

.artist-selection, .playlist-selection {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
}

.related-artists {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.related-artists h3 {
    font-size: 1.2em;
    font-weight: 600;
    margin: 0 0 15px 0;
    color: var(--text-color);
}

.related-artists-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.artist-option, .playlist-option {
    background-color: var(--item-hover-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 8px 16px;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    user-select: none;
    font-size: 0.9em;
}

.artist-option.selected, .playlist-option:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #000;
}

.artist-option:hover {
    background-color: var(--item-active-bg);
}

#submit-preferences {
    background-color: var(--primary-color);
    color: #000;
    border: none;
    border-radius: 6px;
    padding: 10px 20px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 20px;
}

#submit-preferences:disabled {
    background-color: var(--progress-bar-bg);
    cursor: not-allowed;
}

#submit-preferences:hover:not(:disabled) {
    background-color: #33ebff;
}

/* --- Модальное окно создания плейлиста и добавления в плейлист --- */
#playlist-name-input {
    width: 100%;
    padding: 10px 14px;
    background-color: #383838;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95em;
    margin-bottom: 20px;
    outline: none;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

#playlist-name-input:focus {
    background-color: #404040;
    border-color: #666;
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

#save-playlist-btn, #cancel-playlist-btn, #cancel-add-to-playlist-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

#save-playlist-btn {
    background-color: var(--primary-color);
    color: #000;
}

#save-playlist-btn:hover {
    background-color: #33ebff;
}

#cancel-playlist-btn, #cancel-add-to-playlist-btn {
    background-color: var(--progress-bar-bg);
    color: var(--text-color);
}

#cancel-playlist-btn:hover, #cancel-add-to-playlist-btn:hover {
    background-color: #666;
}

/* --- Контекстное меню --- */
.context-menu {
    position: absolute;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    z-index: 4000;
    border-radius: 6px;
}

.context-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.context-menu li {
    padding: 10px 20px;
    font-size: 0.95em;
    color: var(--text-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

.context-menu li:hover {
    background-color: var(--item-hover-bg);
}

/* --- Скрытие элементов --- */
.hidden {
    display: none !important;
}

/* --- Адаптивность --- */
@media (max-width: 900px) {
    :root { --sidebar-width: 70px; }
    #sidebar .sidebar-logo span, #sidebar .sidebar-nav span, .sidebar-file-label span { display: none; }
    #sidebar .sidebar-logo { justify-content: center; padding-bottom: 20px; }
    #sidebar .sidebar-nav li a.nav-link { justify-content: center; padding: 12px 0; }
    .sidebar-footer { padding: 5px; }
    .sidebar-file-label { justify-content: center; padding: 10px 0; }
    .search-results-list { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
}

@media (max-width: 768px) {
    #playback-bar { grid-template-columns: auto 1fr auto; padding: 0 15px; gap: 15px; }
    .pb-track-info { min-width: 56px; flex-basis: auto; gap: 0; }
    .pb-track-info .pb-text { display: none; }
    .pb-like-btn { display: none; }
    .pb-controls-right { min-width: auto; flex-basis: auto; justify-content: flex-end; gap: 10px; }
    #pb-eq-btn { margin-right: 5px; }
    .pb-volume { min-width: auto; }
    #pb-volume-slider { width: 70px; }
    #pb-add-to-playlist-btn { margin-left: 5px; }
    .search-results-list { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 15px; }
    #top-bar { padding: 15px 20px; }
    #main-content { padding: 20px; }
    .fs-art-visualizer-wrapper { width: clamp(180px, 45vh, 300px); }
    #fs-track-title { font-size: 1.4em; }
    #fs-track-artist { font-size: 0.9em; }
    .fs-controls { gap: 20px; }
    #eq-panel { width: 320px; right: 15px; bottom: calc(var(--playback-bar-height) + 8px); padding: 15px; gap: 15px; }
    .eq-bands { height: 140px; gap: 10px; padding: 20px 0 20px 0; }
    #eq-preset-select { padding: 8px 12px; padding-right: 35px; background-position: right 12px center; }
}

@media (max-width: 600px) {
    :root { --playback-bar-height: 80px; }
    #sidebar { height: calc(100% - var(--playback-bar-height)); }
    #content-area { height: calc(100% - var(--playback-bar-height)); }
    #playback-bar { padding: 0 10px; gap: 10px; }
    .pb-controls { gap: 10px; margin-bottom: 5px; }
    .pb-button { font-size: 1.1em; }
    .pb-play-pause { width: 32px; height: 32px; font-size: 0.9em; }
    .pb-progress-container span { display: none; }
    .pb-volume { display: none; }
    #pb-eq-btn { display: none !important; }
    #pb-add-to-playlist-btn { display: none !important; }
    #eq-panel { display: none !important; }
    #top-bar { padding: 10px 15px; }
    #main-content { padding: 15px; padding-bottom: calc(var(--playback-bar-height) + 15px); }
    #fullscreen-player { padding: 50px 15px 15px 15px; }
    .fs-top-bar { top: 10px; left: 10px; right: 10px; width: calc(100% - 20px); }
    #fs-close-btn { width: 35px; height: 35px; font-size: 1.1em; }
    .fs-art-visualizer-wrapper { width: clamp(180px, 40vh, 250px); margin-bottom: 30px; }
    #fs-track-title { font-size: 1.3em; }
    #fs-track-artist { font-size: 0.85em; }
    .fs-controls { gap: 15px; max-width: 320px; }
    .fs-button { font-size: 1em; padding: 6px; }
    .fs-play-pause { font-size: 3em; margin: 0 5px; }
    .fs-like-btn { font-size: 1.3em; }
    .fs-track-controls-wrapper { gap: 20px; }
    .modal-content {
        padding: 16px;
        max-width: 95%;
        max-height: 85vh;
    }
    .modal-content h2 {
        font-size: 1.4em;
    }
    .artist-option, .playlist-option {
        padding: 6px 12px;
        font-size: 0.85em;
    }
}

@media (max-width: 480px) {
    .search-results-list { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
    .chart-item { padding: 10px; }
    .play-item-btn { width: 35px; height: 35px; font-size: 0.9em; bottom: 10px; right: 10px; }
    .fs-art-visualizer-wrapper { width: clamp(150px, 35vh, 220px); margin-bottom: 25px; }
    #fs-track-title { font-size: 1.2em; }
    #fs-track-artist { font-size: 0.85em; }
    .fs-controls { gap: 12px; }
    .fs-play-pause { font-size: 2.8em; }
    .fs-like-btn { font-size: 1.2em; }
}

input[type="file"]#audioFile {
    display: none;
}