* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ffcc00; /* Яндекс желтый */
    --primary-hover: #e6b800;
    --bg-dark: #121212;
    --bg-secondary: #181818;
    --bg-hover: #282828;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --border-color: #2a2a2a;
    --player-height: 80px;
    --sidebar-width: 240px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
}

/* Улучшенная читаемость на больших экранах */
@media (min-width: 1200px) {
    body {
        letter-spacing: 0.01em;
    }
}

/* Сайдбар */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--player-height));
    background: var(--bg-secondary);
    padding: 24px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 32px;
    color: var(--primary-color);
}

.logo i {
    font-size: 32px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s;
    font-size: 16px;
    position: relative;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 10px;
    bottom: 10px;
    width: 3px;
    border-radius: 999px;
    background: var(--primary-color);
}

.nav-item i {
    font-size: 20px;
    width: 20px;
}

.user-section {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 24px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-login:hover {
    background: var(--primary-hover);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-name {
    flex: 1;
    font-weight: 500;
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
}

.btn-logout:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Основной контент */
.main-content {
    margin-left: var(--sidebar-width);
    height: calc(100vh - var(--player-height));
    overflow-y: auto;
    padding: 0;
}

.content-wrapper {
    max-width: 1400px;
    padding: 24px;
}

/* Верхняя панель */
.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 24px;
    background: rgba(18, 18, 18, 0.92);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.topbar-actions {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.topbar-logout {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border-radius: 999px;
    cursor: pointer;
}

.topbar-logout:hover {
    background: rgba(255, 255, 255, 0.06);
}

/* Fullscreen player (Now Playing) */
.fs-player {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: none;
    background: linear-gradient(180deg, rgba(18, 18, 18, 0.98) 0%, rgba(18, 18, 18, 0.92) 40%, rgba(18, 18, 18, 0.98) 100%);
    backdrop-filter: blur(12px);
}

.fs-player.is-open {
    display: flex;
    flex-direction: column;
}

body.is-fs-open {
    overflow: hidden;
}

.fs-player__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px 14px;
    border-bottom: 1px solid var(--border-color);
}

.fs-player__header-actions {
    width: 40px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.fs-player__header-spacer {
    width: 40px;
    height: 40px;
    display: inline-block;
}

.fs-player__icon {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.fs-player__icon:hover {
    background: rgba(255, 255, 255, 0.06);
}

.fs-player__meta {
    flex: 1;
    min-width: 0;
    text-align: center;
}

.fs-player__subtitle {
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fs-player__body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 16px 16px 22px;
}

.fs-player__cover {
    width: min(78vw, 360px);
    aspect-ratio: 1;
    border-radius: 16px;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fs-player__cover i {
    font-size: 64px;
    color: var(--text-secondary);
}

.fs-player__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.fs-player__info {
    width: min(78vw, 520px);
    text-align: left;
}

.fs-player__title {
    font-size: 28px;
    font-weight: 800;
    line-height: 1.15;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fs-player__artist {
    margin-top: 4px;
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fs-player__progress {
    width: min(78vw, 520px);
    display: grid;
    grid-template-columns: 48px 1fr 48px;
    align-items: center;
    gap: 12px;
}

.fs-player__time {
    font-size: 12px;
    color: var(--text-secondary);
}

.fs-progress-slider {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 3px;
    border-radius: 999px;
    background: var(--bg-hover);
    outline: none;
}

.fs-progress-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
}

.fs-progress-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
}

.fs-player__controls-row {
    width: min(78vw, 520px);
    display: grid;
    grid-template-columns: 72px 1fr 72px;
    align-items: center;
    margin-top: 2px;
}

.fs-player__controls-spacer {
    width: 72px;
    height: 1px;
}

.fs-player__controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
}

.fs-player__btn {
    width: 52px;
    height: 52px;
    border-radius: 999px;
    border: none;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.fs-player__btn:hover {
    background: rgba(255, 255, 255, 0.10);
}

.fs-player__btn--play {
    width: 72px;
    height: 72px;
    background: var(--primary-color);
    color: #121212;
}

.fs-player__btn--play:hover {
    background: var(--primary-hover);
}

.fs-player__actions {
    display: flex;
    justify-content: flex-end;
}

.fs-player__pill {
    width: 48px;
    height: 48px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.fs-player__pill:hover {
    background: rgba(255, 255, 255, 0.06);
}

@media (min-width: 900px) {
    .fs-player__body {
        gap: 20px;
    }

    .fs-player__title {
        font-size: 32px;
    }

    .fs-player__info,
    .fs-player__progress,
    .fs-player__controls-row {
        width: min(72vw, 640px);
    }
}

.topbar-search {
    flex: 1;
    max-width: 720px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 999px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.topbar-search i {
    color: var(--text-secondary);
}

.topbar-search input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 14px;
}

.topbar-hint {
    font-size: 12px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
}

.topbar-user {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border-radius: 999px;
    padding: 8px 12px;
    cursor: pointer;
}

.topbar-user:hover {
    background: rgba(255, 255, 255, 0.06);
}

.topbar-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: #121212;
    font-weight: 700;
}

.topbar-username {
    font-weight: 600;
    font-size: 14px;
}

/* Очередь (drawer) */
.drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 40;
}

.queue-drawer {
    position: fixed;
    right: 0;
    top: 0;
    bottom: var(--player-height);
    width: 360px;
    max-width: calc(100vw - var(--sidebar-width));
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    transform: translateX(100%);
    transition: transform 0.2s ease;
    z-index: 50;
    display: flex;
    flex-direction: column;
}

.queue-drawer.is-open {
    transform: translateX(0);
}

.drawer-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
}

.queue-drawer__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.queue-drawer__title {
    font-size: 16px;
    font-weight: 700;
}

.queue-drawer__subtitle {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.queue-drawer__body {
    padding: 12px;
    overflow: auto;
    flex: 1;
}

.queue-drawer__empty {
    color: var(--text-secondary);
    padding: 12px;
}

.queue-drawer__list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.queue-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.2s;
}

.queue-item:hover {
    background: var(--bg-hover);
}

.queue-item.is-active {
    background: rgba(255, 204, 0, 0.14);
    border: 1px solid rgba(255, 204, 0, 0.25);
}

.queue-item__index {
    width: 22px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
}

.queue-item__meta {
    min-width: 0;
    flex: 1;
}

.queue-item__title {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.queue-item__artist {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 8px;
}

.search-bar {
    width: 100%;
    max-width: 600px;
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    color: var(--text-primary);
    font-size: 16px;
    outline: none;
}

.search-bar:focus {
    border-color: var(--primary-color);
}

/* Сетка треков */
.tracks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.track-card {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.track-card:hover {
    background: var(--bg-hover);
    transform: translateY(-4px);
}

.track-cover-wrapper {
    position: relative;
    aspect-ratio: 1;
    background: var(--bg-dark);
    border-radius: 8px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.track-cover-wrapper i {
    font-size: 48px;
    color: var(--text-secondary);
}

.track-cover-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.track-play-btn {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
}

.track-card:hover .track-play-btn {
    opacity: 1;
}

.track-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-info p {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Список треков */
.tracks-list {
    margin-top: 24px;
}

.track-item {
    display: grid;
    grid-template-columns: 50px 1fr 100px 60px;
    gap: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    align-items: center;
    transition: background 0.2s;
    cursor: pointer;
}

.track-item:hover {
    background: var(--bg-secondary);
}

.track-item.playing {
    background: var(--bg-hover);
    color: var(--primary-color);
}

.track-number {
    text-align: center;
    color: var(--text-secondary);
}

.track-item:hover .track-number {
    display: none;
}

.track-item .play-icon {
    display: none;
    text-align: center;
}

.track-item:hover .play-icon {
    display: block;
}

.track-main-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.track-mini-cover {
    width: 40px;
    height: 40px;
    background: var(--bg-dark);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.track-mini-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
}

.track-mini-cover i {
    color: var(--text-secondary);
}

.track-text h4 {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 2px;
}

.track-text p {
    font-size: 13px;
    color: var(--text-secondary);
}

.track-duration {
    color: var(--text-secondary);
    font-size: 14px;
}

.track-actions {
    display: flex;
    gap: 8px;
}

.track-action-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: all 0.2s;
}

.track-action-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.track-action-btn.active {
    color: var(--primary-color);
}

/* Плеер */
.player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--player-height);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 16px;
    padding: 0 16px;
    align-items: center;
    backdrop-filter: blur(10px);
}

.player-track-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.player-track-info .track-title {
    cursor: pointer;
}

.player-track-info .track-artist {
    cursor: pointer;
}

.player-track-info .track-cover {
    cursor: pointer;
}

.track-cover {
    width: 56px;
    height: 56px;
    background: var(--bg-dark);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.track-cover i {
    font-size: 24px;
    color: var(--text-secondary);
}

.track-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
}

.track-details {
    flex: 1;
    min-width: 0;
}

.track-title {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-artist {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.control-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.control-btn:hover {
    background: var(--bg-hover);
}

.control-btn-play {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: #121212;
}

.control-btn-play:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.player-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
}

.time-current,
.time-total {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 40px;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-hover);
    border-radius: 2px;
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    border-radius: 2px;
    pointer-events: none;
}

.progress-slider {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    outline: none;
    cursor: pointer;
}

.progress-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
}

.progress-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    opacity: 0;
    transition: opacity 0.2s;
}

.progress-bar:hover .progress-slider::-webkit-slider-thumb,
.progress-slider:active::-webkit-slider-thumb {
    opacity: 1;
}

.progress-bar:hover .progress-slider::-moz-range-thumb,
.progress-slider:active::-moz-range-thumb {
    opacity: 1;
}

.player-volume {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.volume-slider-wrapper {
    width: 100px;
}

.volume-slider {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-hover);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
}

.volume-slider::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Модальное окно */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 32px;
    max-width: 450px;
    width: 90%;
    position: relative;
}

.modal-close {
    position: absolute;
    right: 16px;
    top: 16px;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-close:hover {
    color: var(--text-primary);
}

.auth-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.auth-tab {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.auth-tab.active {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}

.auth-form h2 {
    font-size: 24px;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary-color);
}

.btn-primary {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 24px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

/* Плейлисты */
.playlists-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.playlist-card {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.playlist-card:hover {
    background: var(--bg-hover);
    transform: translateY(-4px);
}

.playlist-cover {
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
    border-radius: 8px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.playlist-cover i {
    font-size: 48px;
    color: white;
}

.playlist-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.playlist-info p {
    font-size: 14px;
    color: var(--text-secondary);
}

.btn-create-playlist {
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-create-playlist:hover {
    background: var(--primary-hover);
}

/* Адаптивность */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
        --mobile-nav-height: 0px;
        --player-height: 112px;
    }

    /* На мобиле оставляем только topbar, меню прячем */
    .sidebar {
        display: none;
    }

    .main-content {
        margin-left: 0;
        margin-top: 0;
        height: calc(100vh - var(--player-height));
    }

    .topbar {
        padding: 12px;
        gap: 10px;
    }

    .topbar-hint,
    .topbar-username {
        display: none;
    }

    .content-wrapper {
        padding: 16px 12px;
    }

    .tracks-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 14px;
        margin-top: 16px;
    }

    .track-card {
        padding: 12px;
    }

    .track-play-btn {
        width: 44px;
        height: 44px;
    }

    /* Мобильный плеер: компактный, без лишних кнопок */
    .player {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        grid-template-areas:
            "info actions"
            "controls controls";
        gap: 8px 10px;
        padding: 10px 12px;
        height: var(--player-height);
    }

    .player-track-info {
        grid-area: info;
        justify-content: flex-start;
        min-width: 0;
    }

    .track-cover {
        display: flex;
        width: 44px;
        height: 44px;
        border-radius: 8px;
    }

    .track-details {
        min-width: 0;
    }

    .track-title {
        font-size: 13px;
    }

    .track-artist {
        display: none;
    }

    .player-volume {
        grid-area: actions;
        justify-content: flex-end;
        gap: 6px;
    }

    /* На мобиле громкость управляется системой */
    #btnVolume,
    .volume-slider-wrapper {
        display: none;
    }

    .player-controls {
        grid-area: controls;
        gap: 8px;
        align-items: stretch;
    }

    /* На мобиле прогресс между верхом и кнопками */
    .player-progress {
        order: 0;
        width: 100%;
        justify-content: center;
    }

    .progress-bar {
        height: 4px;
    }

    /* Оставляем только Prev/Play/Next */
    #btnShuffle,
    #btnRepeat,
    #btnTransition {
        display: none;
    }

    .player-buttons {
        order: 1;
        justify-content: center;
        gap: 20px;
        margin-bottom: 0;
    }

    /* Время скрываем — чтобы не перегружать */
    .time-current,
    .time-total {
        display: none;
    }

    .player-progress {
        gap: 0;
    }
}

/* Доп. ужатие для очень маленьких экранов */
@media (max-width: 560px) {
    body {
        overflow: hidden;
    }
    .player {
        padding: 8px 10px;
    }

    .player-buttons {
        gap: 10px;
    }
}

/* Узкие экраны: делаем плеер компактнее и разрешаем перенос кнопок */
@media (max-width: 420px) {
    :root {
        --player-height: 120px;
    }

    .player {
        height: auto;
        min-height: var(--player-height);
        padding: 10px 10px;
    }

    .player-controls {
        gap: 6px;
    }

    .player-buttons {
        justify-content: center;
        gap: 10px;
        margin-bottom: 0;
    }

    .control-btn {
        width: 30px;
        height: 30px;
        padding: 6px;
    }

    .control-btn-play {
        width: 38px;
        height: 38px;
    }

    .small-btn {
        width: 26px;
        height: 26px;
        font-size: 13px;
    }

    .player-progress {
        gap: 8px;
    }
}

@media (max-width: 360px) {
    :root {
        --player-height: 112px;
    }

    .player {
        padding: 10px 8px;
        gap: 8px;
    }

    .player-buttons {
        gap: 8px;
    }

    .control-btn {
        width: 28px;
        height: 28px;
        padding: 6px;
    }

    .control-btn-play {
        width: 36px;
        height: 36px;
    }

    .volume-slider-wrapper {
        width: 56px;
    }
}

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.loading {
    text-align: center;
    padding: 48px;
    color: var(--text-secondary);
}