:root {
    color-scheme: dark;
    --accent: #f09ba2;
    --accent-soft: rgba(240, 155, 162, 0.18);
    --accent-strong: #f09ba2;
    --bg: #0d0f14;
    --surface: #15171d;
    --surface-soft: #1b1e27;
    --surface-strong: #222633;
    --text: #f5f6fa;
    --text-soft: #a1a6b5;
    --muted: #687080;
    --line: rgba(255, 255, 255, 0.1);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
    --side-width: 92px;
}

[data-theme='light'] {
    color-scheme: light;
    --bg: #ffffff;
    --surface: #f6f7fb;
    --surface-soft: #ffffff;
    --surface-strong: #eef0f6;
    --text: #151923;
    --text-soft: #687080;
    --muted: #8c93a3;
    --line: rgba(20, 24, 35, 0.1);
    --shadow: 0 24px 80px rgba(20, 24, 35, 0.12);
}

[data-theme='custom'] {
    color-scheme: dark;
    --bg: #11131b;
    --surface: #171a23;
    --surface-soft: #202431;
    --surface-strong: #282e3f;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    height: 100%;
}

body {
    overflow: hidden;
    background:
        radial-gradient(
            circle at 12% 6%,
            color-mix(in srgb, var(--accent) 28%, transparent),
            transparent 32%
        ),
        radial-gradient(
            circle at 88% 18%,
            rgba(100, 156, 255, 0.18),
            transparent 28%
        ),
        linear-gradient(
            135deg,
            var(--bg),
            color-mix(in srgb, var(--bg) 84%, var(--accent))
        );
    color: var(--text);
    font-family:
        Pretendard,
        Inter,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        'Segoe UI',
        sans-serif;
}

button,
input {
    font: inherit;
}

button {
    border: 0;
    cursor: pointer;
}

img {
    display: block;
    max-width: 100%;
}

.app-shell {
    height: 100vh;
    display: grid;
    grid-template-columns: var(--side-width) minmax(340px, 480px) minmax(0, 1fr);
    gap: 18px;
    padding: 18px;
}

.side-nav,
.content-panel,
.player-panel,
.settings-card,
.mini-player {
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--surface) 86%, transparent);
    box-shadow: var(--shadow);
    backdrop-filter: blur(22px);
}

.side-nav {
    height: calc(100vh - 36px);
    border-radius: 26px;
    padding: 18px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.brand-mini {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--accent), #7c5cff);
    color: #fff;
    text-decoration: none;
    font-size: 28px;
    box-shadow: 0 16px 36px color-mix(in srgb, var(--accent) 34%, transparent);
}

.nav-list {
    width: 100%;
    margin-top: 34px;
    display: grid;
    gap: 8px;
}

.nav-item {
    width: 100%;
    height: 58px;
    display: grid;
    place-items: center;
    gap: 4px;
    border-radius: 18px;
    background: transparent;
    color: var(--text-soft);
}

.nav-item span {
    font-size: 19px;
}

.nav-item strong {
    font-size: 11px;
    font-weight: 600;
}

.nav-item.active,
.nav-item:hover {
    background: var(--accent-soft);
    color: var(--accent-strong);
}

.side-nav > .settings-open {
    margin-top: auto;
}

.content-panel,
.player-panel {
    height: calc(100vh - 36px);
    border-radius: 32px;
    overflow: hidden;
}

.content-panel {
    padding: 26px;
}

.panel-header,
.player-header,
.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
}

.eyebrow {
    margin: 0 0 6px;
    color: var(--accent-strong);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.panel-header h1,
.player-header h2,
.settings-header h2 {
    margin: 0;
    font-size: 30px;
    letter-spacing: -0.07em;
}

.panel-header h1 span {
    color: var(--accent-strong);
}

.install-button {
    height: 44px;
    padding: 0 16px;
    border-radius: 999px;
    background: transparent;
    color: var(--text);
    border: 1px solid color-mix(in srgb, var(--accent) 70%, transparent);
}

.install-button span {
    color: var(--accent-strong);
    margin-right: 6px;
}

.search-box {
    margin-top: 26px;
    height: 58px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: var(--surface-soft);
    color: var(--text-soft);
}

.search-box input {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text);
}

.search-box input::placeholder {
    color: var(--muted);
}

.search-box button {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: transparent;
    color: var(--text-soft);
}

.chip-row {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    overflow-x: auto;
    padding-bottom: 3px;
}

.chip {
    flex: 0 0 auto;
    padding: 11px 16px;
    border-radius: 999px;
    background: var(--surface-strong);
    color: var(--text-soft);
}

.chip.active,
.chip:hover {
    background: var(--accent);
    color: #141414;
    font-weight: 800;
}

.track-list {
    flex: 1;
    margin: 22px -8px 0;
    padding: 8px;
    display: grid;
    align-content: start;
    gap: 10px;
    overflow-y: auto;
}

.track-card {
    width: 100%;
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    padding: 12px;
    border-radius: 22px;
    background: transparent;
    color: var(--text);
    text-align: left;
    transition:
        transform 0.2s ease,
        background 0.2s ease;
}

.track-card:hover {
    transform: translateY(-1px);
    background: color-mix(in srgb, var(--surface-strong) 74%, transparent);
}

.track-card.active {
    background:
        linear-gradient(135deg, var(--accent-soft), transparent),
        var(--surface-soft);
    outline: 1px solid color-mix(in srgb, var(--accent) 68%, transparent);
}

.track-cover {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    object-fit: cover;
}

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

.track-title,
.track-artist,
.track-sub {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.track-title {
    font-size: 15px;
    font-weight: 800;
}

.track-artist {
    margin-top: 5px;
    color: var(--text-soft);
    font-size: 13px;
}

.track-sub {
    margin-top: 2px;
    color: var(--muted);
    font-size: 12px;
}

.track-side {
    display: grid;
    gap: 8px;
    justify-items: end;
    color: var(--text-soft);
    font-size: 13px;
}

.eq-icon {
    color: var(--accent-strong);
    font-size: 16px;
    letter-spacing: -5px;
}

.library-footer {
    height: 58px;
    margin-top: 20px;
    padding: 0 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface-soft);
    color: var(--text-soft);
}

.library-footer div {
    display: flex;
    gap: 10px;
}

.library-footer button {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background: transparent;
    color: var(--text-soft);
}

.player-panel {
    display: grid;
    grid-template-rows: auto minmax(260px, 1fr) auto auto auto auto;
    padding: 34px;
}

.player-header-actions {
    display: flex;
    gap: 10px;
}

.player-header-actions button,
.settings-close,
.favorite-button {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    background: var(--surface-soft);
    color: var(--text);
}

.favorite-button.active {
    color: var(--accent-strong);
}

.cover-stage {
    display: grid;
    place-items: center;
    padding: 26px;
}

.now-cover {
    width: min(460px, 72vh);
    aspect-ratio: 1;
    border-radius: 34px;
    object-fit: cover;
    box-shadow:
        0 34px 80px rgba(0, 0, 0, 0.34),
        0 0 80px color-mix(in srgb, var(--accent) 18%, transparent);
}

.now-meta {
    text-align: center;
}

.now-meta h3 {
    margin: 0;
    font-size: clamp(30px, 4vw, 52px);
    letter-spacing: -0.08em;
}

.now-meta p {
    margin: 8px 0 0;
    color: var(--text-soft);
    font-size: 17px;
}

.meta-badges {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 18px;
}

.meta-badges span {
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--text-soft);
    font-size: 13px;
}

.visualizer {
    height: 54px;
    display: flex;
    align-items: end;
    justify-content: center;
    gap: 4px;
    margin: 22px auto 10px;
    max-width: 600px;
}

.visualizer span {
    width: 4px;
    border-radius: 999px;
    background: linear-gradient(to top, var(--accent), #7c5cff);
    opacity: 0.85;
}

.progress-section {
    max-width: 680px;
    width: 100%;
    margin: 0 auto;
}

input[type='range'] {
    width: 100%;
    accent-color: var(--accent);
}

.time-row {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    color: var(--text-soft);
    font-size: 14px;
}

.control-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    margin-top: 28px;
}

.control-row button {
    color: var(--text);
}

.secondary-control,
.main-control {
    background: transparent;
}

.secondary-control {
    font-size: 24px;
    color: var(--text-soft) !important;
}

.main-control {
    font-size: 30px;
}

.play-control {
    width: 82px;
    height: 82px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    background: var(--accent);
    color: #141414 !important;
    font-size: 32px;
    font-weight: 900;
    box-shadow: 0 20px 50px color-mix(in srgb, var(--accent) 34%, transparent);
}

.volume-section {
    max-width: 520px;
    width: 100%;
    margin: 26px auto 0;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 12px;
    align-items: center;
    color: var(--text-soft);
}

.mini-player {
    position: fixed;
    left: calc(var(--side-width) + 36px);
    right: 36px;
    bottom: 22px;
    height: 76px;
    display: none;
    grid-template-columns: 54px minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    padding: 11px 14px;
    border-radius: 24px;
    z-index: 20;
}

.mini-cover {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    object-fit: cover;
}

.mini-meta {
    min-width: 0;
}

.mini-title,
.mini-artist {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mini-title {
    font-weight: 800;
}

.mini-artist {
    margin-top: 4px;
    color: var(--text-soft);
    font-size: 13px;
}

.mini-play {
    width: 50px;
    height: 50px;
    border-radius: 18px;
    background: var(--accent);
    color: #141414;
    font-weight: 900;
}

.settings-drawer {
    position: fixed;
    inset: 0;
    display: grid;
    justify-items: end;
    background: rgba(0, 0, 0, 0.48);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 40;
}

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

.settings-card {
    width: min(420px, calc(100vw - 28px));
    height: calc(100vh - 28px);
    margin: 14px;
    border-radius: 28px;
    padding: 24px;
    transform: translateX(20px);
    transition: transform 0.2s ease;
}

.settings-drawer.open .settings-card {
    transform: translateX(0);
}

.settings-section {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.settings-section h3,
.settings-preview h3 {
    margin: 0 0 14px;
    font-size: 16px;
}

.radio-row {
    min-height: 44px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-soft);
}

.radio-row input {
    accent-color: var(--accent);
}

.color-picker-row {
    display: grid;
    grid-template-columns: 68px 1fr;
    gap: 10px;
}

.accent-picker {
    width: 68px;
    height: 48px;
    padding: 4px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface-soft);
}

.accent-text {
    min-width: 0;
    height: 48px;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 0 14px;
    background: var(--surface-soft);
    color: var(--text);
    outline: 0;
}

.preset-row {
    display: flex;
    gap: 10px;
    margin-top: 14px;
    flex-wrap: wrap;
}

.preset-row button {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: var(--preset);
    border: 2px solid color-mix(in srgb, var(--preset) 54%, #fff);
}

.settings-preview {
    margin-top: 24px;
}

.preview-card {
    display: grid;
    grid-template-columns: 58px 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 18px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
}

.preview-card img {
    width: 58px;
    height: 58px;
    border-radius: 16px;
}

.preview-card strong,
.preview-card span {
    display: block;
}

.preview-card span {
    margin-top: 4px;
    color: var(--text-soft);
    font-size: 13px;
}

.preview-eq {
    color: var(--accent-strong) !important;
    letter-spacing: -4px;
}

.apply-button {
    width: 100%;
    height: 52px;
    margin-top: 16px;
    border-radius: 16px;
    background: var(--accent);
    color: #141414;
    font-weight: 900;
}

@media (max-width: 1100px) {
    .app-shell {
        grid-template-columns: var(--side-width) minmax(0, 1fr);
        padding-bottom: 116px;
    }

    .player-panel {
        display: none;
    }

    .mini-player {
        display: grid;
    }
}

@media (max-width: 720px) {
    :root {
        --side-width: 0px;
    }

    .app-shell {
        display: block;
        padding: 12px 12px 104px;
    }

    .side-nav {
        display: none;
    }

    .content-panel {
        height: calc(100vh - 116px);
        padding: 20px;
        border-radius: 28px;
    }

    .panel-header h1 {
        font-size: 24px;
    }

    .install-button {
        display: none;
    }

    .track-card {
        grid-template-columns: 58px minmax(0, 1fr) auto;
        padding: 10px;
    }

    .track-cover {
        width: 58px;
        height: 58px;
        border-radius: 16px;
    }

    .library-footer {
        display: none;
    }

    .mini-player {
        left: 12px;
        right: 12px;
        bottom: 12px;
    }

    .settings-card {
        width: calc(100vw - 24px);
        height: calc(100vh - 24px);
        margin: 12px;
    }
}

.api-error {
    padding: 14px;
    border-radius: 16px;
    background: rgba(240, 155, 162, 0.14);
    color: var(--accent-strong);
    border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
    font-size: 13px;
}

@media (max-width: 720px) {
    body {
        overflow: hidden;
    }

    .track-list {
        overflow-y: auto;
    }
}

.content-panel {
    height: calc(100vh - 36px);
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.tab-panel {
    display: none;
    height: 100%;
    min-height: 0;
    flex-direction: column;
    overflow: hidden;
}

.tab-panel.active {
    display: flex;
}

.hero-card {
    margin-top: 22px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background:
        radial-gradient(
            circle at top right,
            color-mix(in srgb, var(--accent) 25%, transparent),
            transparent 36%
        ),
        var(--surface-soft);
}

.hero-card h2 {
    margin: 0;
    font-size: 24px;
    letter-spacing: -0.06em;
}

.hero-card p {
    margin: 8px 0 0;
    color: var(--text-soft);
    line-height: 1.5;
}

.admin-link {
    display: inline-flex;
    margin-top: 16px;
    min-height: 40px;
    align-items: center;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--accent);
    color: #141414;
    font-weight: 900;
    text-decoration: none;
}

.empty-guide {
    margin-top: 20px;
    padding: 18px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: var(--surface-soft);
}

.empty-guide strong,
.empty-guide span {
    display: block;
}

.empty-guide span {
    margin-top: 6px;
    color: var(--text-soft);
    font-size: 14px;
}

.library-grid,
.settings-grid {
    margin-top: 24px;
    display: grid;
    gap: 14px;
}

.library-tile,
.setting-tile,
.playlist-card {
    width: 100%;
    min-height: 92px;
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: var(--surface-soft);
    color: var(--text);
    text-align: left;
    text-decoration: none;
}

.library-tile span,
.setting-tile span,
.playlist-art {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border-radius: 17px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 24px;
}

.library-tile strong,
.library-tile em,
.setting-tile strong,
.setting-tile em,
.playlist-card strong,
.playlist-card em {
    display: block;
}

.library-tile em,
.setting-tile em,
.playlist-card em {
    margin-top: 5px;
    color: var(--text-soft);
    font-size: 13px;
    font-style: normal;
}

.playlist-list {
    margin-top: 24px;
    display: grid;
    gap: 14px;
}

.library-footer a {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    background: transparent;
    color: var(--text-soft);
    text-decoration: none;
}

@media (max-width: 1100px) {
    .app-shell {
        grid-template-columns: var(--side-width) minmax(0, 1fr);
        padding-bottom: 116px;
    }

    .content-panel {
        height: calc(100vh - 152px);
    }
}

@media (max-width: 720px) {
    .content-panel {
        height: calc(100vh - 116px);
        padding: 20px;
        border-radius: 28px;
    }

    .hero-card h2 {
        font-size: 20px;
    }
}

.favorite-button.active {
    color: var(--accent-strong);
}

.repeat-button.active,
.shuffle-button.active {
    color: var(--accent-strong) !important;
    text-shadow: 0 0 18px color-mix(in srgb, var(--accent) 70%, transparent);
}

.tab-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 24px;
    padding: 0 4px;
}

.tab-section-head strong {
    font-size: 16px;
}

.tab-section-head span {
    color: var(--text-soft);
    font-size: 13px;
}

.tab-track-list {
    flex: 1;
    min-height: 0;
    margin-top: 14px;
    display: grid;
    align-content: start;
    gap: 10px;
    overflow-y: auto;
}

.empty-state {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface-soft);
    color: var(--text-soft);
    font-size: 14px;
}

.library-tile.active,
.playlist-card.active {
    outline: 1px solid color-mix(in srgb, var(--accent) 70%, transparent);
    background:
        linear-gradient(135deg, var(--accent-soft), transparent),
        var(--surface-soft);
}

.track-card .favorite-mark {
    color: var(--accent-strong);
    font-size: 12px;
}

@media (max-width: 720px) {
    .tab-track-list {
        padding-bottom: 8px;
    }
}

.visualizer {
    height: 54px;
    display: flex;
    align-items: end;
    justify-content: center;
    gap: 4px;
    margin: 22px auto 10px;
    max-width: 600px;
    overflow: hidden;
}

.visualizer span {
    width: 4px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(to top, var(--accent), #7c5cff);
    opacity: 0.35;
    transition:
        height 0.05s linear,
        opacity 0.05s linear;
}

.visualizer.playing span {
    box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 55%, transparent);
}

.cover-image {
    position: relative;
    display: grid;
    place-items: center;
    overflow: hidden;
    background:
        radial-gradient(
            circle at 30% 20%,
            rgba(255, 255, 255, 0.24),
            transparent 28%
        ),
        linear-gradient(135deg, var(--accent), #7c5cff);
    background-position: center;
    background-size: cover;
    color: #fff;
    isolation: isolate;
}

.cover-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(
            circle at center,
            transparent 34%,
            rgba(0, 0, 0, 0.16) 35%,
            transparent 36%
        ),
        linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent);
    opacity: 0.8;
}

.cover-image.has-cover {
    background-image:
        var(--cover-url), linear-gradient(135deg, var(--accent), #7c5cff);
}

.cover-image.has-cover::before {
    display: none;
}

.cover-fallback-note {
    position: relative;
    z-index: 1;
    font-size: 42px;
    font-weight: 900;
    line-height: 1;
    text-shadow: 0 14px 30px rgba(0, 0, 0, 0.28);
}

.cover-image.has-cover .cover-fallback-note {
    display: none;
}

.track-cover.cover-image {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    flex: 0 0 auto;
}

.track-cover.cover-image .cover-fallback-note {
    font-size: 24px;
}

.now-cover.cover-image {
    width: min(460px, 72vh);
    aspect-ratio: 1;
    border-radius: 34px;
    box-shadow:
        0 34px 80px rgba(0, 0, 0, 0.34),
        0 0 80px color-mix(in srgb, var(--accent) 18%, transparent);
}

.now-cover.cover-image .cover-fallback-note {
    font-size: 96px;
}

.mini-cover.cover-image {
    width: 54px;
    height: 54px;
    border-radius: 16px;
}

.mini-cover.cover-image .cover-fallback-note {
    font-size: 24px;
}