:root {
    --bg: #0b1020;
    --bg-elevated: #11182b;
    --bg-soft: #19233a;
    --bg-strong: #08111f;
    --line: rgba(255, 255, 255, 0.08);
    --line-strong: rgba(255, 255, 255, 0.16);
    --text: #f4f7fb;
    --muted: #9fafc7;
    --accent: #6df2c4;
    --accent-strong: #7e9fff;
    --danger: #ff7a7a;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --font: "Prompt", sans-serif;
}

body[data-theme="neon"] {
    --bg: #060906;
    --bg-elevated: #0d140d;
    --bg-soft: #152015;
    --bg-strong: #020402;
    --line: rgba(0, 255, 65, 0.12);
    --line-strong: rgba(0, 255, 65, 0.24);
    --text: #effff2;
    --muted: #94b59a;
    --accent: #00ff41;
    --accent-strong: #00cc33;
    --shadow: 0 24px 60px rgba(0, 255, 65, 0.12);
}

body[data-theme="light"] {
    --bg: #f5f7fb;
    --bg-elevated: #ffffff;
    --bg-soft: #eef2f8;
    --bg-strong: #dde5f1;
    --line: rgba(15, 23, 42, 0.1);
    --line-strong: rgba(15, 23, 42, 0.18);
    --text: #132033;
    --muted: #5e708a;
    --accent: #2ab67d;
    --accent-strong: #1e8ce6;
    --shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
}

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

html, body {
    min-height: 100%;
}

body {
    font-family: var(--font);
    color: var(--text);
    background:
        radial-gradient(circle at top left, color-mix(in srgb, var(--accent) 18%, transparent), transparent 28%),
        radial-gradient(circle at top right, color-mix(in srgb, var(--accent-strong) 14%, transparent), transparent 24%),
        linear-gradient(180deg, var(--bg-strong) 0%, var(--bg) 100%);
}

button,
input,
select {
    font: inherit;
}

button {
    border: 0;
    background: none;
    color: inherit;
    cursor: pointer;
}

input,
select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    padding: 14px 16px;
    outline: none;
}

input:focus,
select:focus {
    border-color: color-mix(in srgb, var(--accent) 70%, transparent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 12%, transparent);
}

input[type="range"] {
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
}

input[type="range"]::-webkit-slider-runnable-track {
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    margin-top: -5px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

input[type="range"]::-moz-range-track {
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border: 0;
    border-radius: 50%;
    background: #fff;
}

.hidden {
    display: none !important;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.72rem;
    color: var(--muted);
}

.muted,
.helper-text {
    color: var(--muted);
}

.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(4, 8, 16, 0.78);
    backdrop-filter: blur(14px);
    z-index: 1000;
}

.modal-card {
    width: min(520px, 100%);
    background: linear-gradient(180deg, color-mix(in srgb, var(--bg-elevated) 96%, white 4%), color-mix(in srgb, var(--bg) 98%, black 2%));
    border: 1px solid var(--line);
    border-radius: 28px;
    padding: 28px;
    box-shadow: var(--shadow);
}

.modal-card.wide {
    width: min(760px, 100%);
}

.login-card {
    display: flex;
    flex-direction: column;
    gap: 18px;
    align-items: stretch;
    text-align: center;
}

.login-card h1 {
    font-size: clamp(1.9rem, 5vw, 2.5rem);
}

.centered-btn {
    align-self: center;
    min-width: 180px;
}

.app-shell {
    width: min(1500px, calc(100% - 24px));
    margin: 12px auto;
}

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    padding: 22px 24px;
    background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
    border: 1px solid var(--line);
    border-radius: 26px;
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
}

.brand i {
    color: var(--accent);
}

.topbar-actions,
.user-pill,
.adjust-inline,
.transport-main,
.transport-secondary,
.state-badges,
.dialog-head,
.dialog-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-pill {
    padding: 8px 10px 8px 16px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg-soft) 55%, transparent);
}

.layout {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.86fr);
    gap: 18px;
    margin-top: 18px;
}

.player-panel,
.side-panel,
.search-card,
.library-card,
.transport-card {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.player-panel,
.search-card,
.library-card {
    padding: 22px;
    background: color-mix(in srgb, var(--bg-elevated) 90%, transparent);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.side-panel {
    gap: 18px;
}

.player-stage {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
}

.player-frame {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    overflow: hidden;
    border-radius: 22px;
    background: #000;
}

#player {
    position: absolute;
    inset: 0;
}

.player-summary {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
}

.player-summary h2 {
    margin-top: 6px;
    font-size: clamp(1.35rem, 2.8vw, 2rem);
    line-height: 1.2;
}

.badge,
.value-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 14px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    border: 1px solid var(--line);
    white-space: nowrap;
}

.badge.subdued {
    color: var(--muted);
}

.transport-card {
    padding: 20px;
    border-radius: 22px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 6%, transparent), color-mix(in srgb, var(--bg-elevated) 60%, transparent));
    border: 1px solid var(--line);
}

.timeline-row {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) 48px;
    gap: 12px;
    align-items: center;
}

.progress-container {
    height: 12px;
    cursor: pointer;
}

.progress-bar {
    height: 100%;
    width: 100%;
    border-radius: 999px;
    overflow: hidden;
    background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.progress-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
}

.transport-main,
.transport-secondary {
    justify-content: center;
    flex-wrap: wrap;
}

.adjust-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.adjust-card,
.setting-block {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    border-radius: 18px;
    background: color-mix(in srgb, var(--accent) 4%, transparent);
    border: 1px solid var(--line);
}

.adjust-inline {
    width: 100%;
}

.adjust-inline input[type="range"] {
    flex: 1;
}

.control-btn,
.icon-btn,
.chip-btn,
.text-btn,
.primary-btn,
.secondary-btn {
    transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.control-btn:hover,
.icon-btn:hover,
.chip-btn:hover,
.text-btn:hover,
.primary-btn:hover,
.secondary-btn:hover {
    transform: translateY(-1px);
}

.control-btn {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--accent) 5%, transparent);
    border: 1px solid var(--line);
}

.control-btn.primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #07111d;
    border-color: transparent;
}

.control-btn.large {
    width: 72px;
    height: 72px;
    font-size: 1.2rem;
}

.chip-btn,
.icon-btn,
.text-btn,
.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 14px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--accent) 4%, transparent);
}

.icon-btn {
    width: 42px;
    height: 42px;
    padding: 0;
    border-radius: 50%;
}

.icon-btn.danger {
    color: var(--danger);
}

.chip-btn.active,
.text-btn.active {
    border-color: color-mix(in srgb, var(--accent) 45%, transparent);
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.primary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: 16px;
    color: #07111d;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.secondary-btn {
    width: fit-content;
}

.text-btn {
    color: var(--muted);
}

.search-box {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
}

.search-results:empty::before {
    content: "Paste a link and choose play now or queue.";
    display: block;
    color: var(--muted);
    font-size: 0.95rem;
}

.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.section-head.slim {
    margin-bottom: 8px;
}

.tabs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.tab-btn {
    padding: 12px 14px;
    border-radius: 14px;
    background: color-mix(in srgb, var(--accent) 4%, transparent);
    border: 1px solid var(--line);
    color: var(--muted);
}

.tab-btn.active {
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.tab-panel {
    display: none;
}

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

.video-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 60vh;
    overflow: auto;
}

.video-item {
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border-radius: 18px;
    border: 1px solid transparent;
    background: color-mix(in srgb, var(--accent) 3%, transparent);
}

.video-item:hover {
    border-color: color-mix(in srgb, var(--accent) 30%, transparent);
    background: color-mix(in srgb, var(--accent) 5%, transparent);
}

.video-item.active {
    border-color: color-mix(in srgb, var(--accent) 44%, transparent);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.video-item img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 12px;
}

.video-item h4 {
    font-size: 0.97rem;
    line-height: 1.35;
    margin-bottom: 4px;
}

.video-item p {
    color: var(--muted);
    font-size: 0.86rem;
}

.video-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.video-action-btn {
    min-width: 40px;
    min-height: 40px;
    padding: 10px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--accent) 4%, transparent);
}

.settings-grid,
.eq-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 18px;
}

.toggle-row {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
}

.toggle-row input {
    width: 18px;
    height: 18px;
}

.dialog-head {
    justify-content: space-between;
}

.dialog-actions {
    justify-content: flex-end;
    margin-top: 18px;
}

.app-shell.mini-mode .layout {
    grid-template-columns: minmax(0, 1fr);
}

.app-shell.mini-mode .side-panel {
    order: 2;
}

.app-shell.mini-mode .player-panel {
    order: 1;
}

.app-shell.mini-mode .player-stage {
    grid-template-columns: 280px minmax(0, 1fr);
    align-items: start;
}

.app-shell.mini-mode .player-frame {
    padding-bottom: 157px;
    height: 157px;
}

@media (max-width: 1180px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .video-list {
        max-height: none;
    }
}

@media (max-width: 860px) {
    .topbar,
    .player-summary,
    .timeline-row,
    .search-box,
    .settings-grid,
    .eq-grid,
    .adjust-grid {
        grid-template-columns: 1fr;
    }

    .topbar,
    .player-summary,
    .search-box {
        display: flex;
        flex-direction: column;
        align-items: stretch;
    }

    .player-summary {
        align-items: flex-start;
    }

    .timeline-row {
        display: grid;
        grid-template-columns: 1fr;
    }

    .timeline-row span {
        min-width: 0;
    }

    .app-shell.mini-mode .player-stage {
        grid-template-columns: 1fr;
    }

    .video-item {
        grid-template-columns: 88px minmax(0, 1fr);
    }

    .video-actions {
        grid-column: 1 / -1;
        flex-direction: row;
        justify-content: flex-end;
    }
}

@media (max-width: 640px) {
    .app-shell {
        width: min(100% - 16px, 100%);
        margin: 8px auto;
    }

    .topbar,
    .player-panel,
    .search-card,
    .library-card,
    .transport-card,
    .modal-card {
        padding: 16px;
        border-radius: 20px;
    }

    .control-btn {
        width: 50px;
        height: 50px;
    }

    .control-btn.large {
        width: 62px;
        height: 62px;
    }

    .chip-btn span {
        display: none;
    }
}