/* ========================================================
   MAHIKARI · RIGHT COLUMN: STUDIO AUDIO SUITE
   High-End Streaming Audio Player · Equalizer & Playlist
======================================================== */

.col-right {
    padding: 2.25rem 2.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1.5rem;
    position: relative;
}

.studio-audio-suite {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* ========================================================
   SUITE HEADER ROW & CATEGORIES
======================================================== */
.suite-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.suite-title {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--font-mono);
    font-size: 0.725rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--color-accent);
}

.track-indicator {
    font-family: var(--font-mono);
    font-size: 0.725rem;
    font-weight: 600;
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.track-indicator span {
    color: var(--color-text);
}

/* Category Navigation */
.audio-category-nav {
    display: flex;
    gap: 0.4rem;
    background: rgba(0, 0, 0, 0.25);
    padding: 0.35rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-subtle);
}

.cat-tab {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.cat-tab:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.04);
}

.cat-tab.active {
    color: var(--color-text);
    background: var(--surface-2);
    border: 1px solid var(--color-border-active);
    box-shadow: var(--shadow-soft);
}

/* 8 persona tabs: scroll ngang thay vì bóp chữ */
.audio-category-nav {
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    -ms-overflow-style: none;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    min-width: 0;
    max-width: 100%;
}

.col-right,
.studio-audio-suite {
    min-width: 0;
}

.audio-category-nav::-webkit-scrollbar {
    display: none;
}

.audio-category-nav .cat-tab {
    flex: 0 0 auto;
}

.cat-count {
    font-size: 0.58rem;
    line-height: 1;
    padding: 2px 5px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-muted);
}

.cat-tab.active .cat-count {
    background: var(--color-accent-glow);
    color: var(--color-text);
}

/* Tag thể loại dưới tên bài: bấm để mở danh sách của waifu đó */
.track-category-tag {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.track-category-tag:hover {
    border-color: var(--color-border-active);
    color: var(--color-text);
}

.track-category-tag.is-dim {
    opacity: 0.5;
}

/* ========================================================
   NOW PLAYING STAGE (VINYL PLATTER & METADATA)
======================================================== */
.now-playing-stage {
    display: flex;
    align-items: center;
    gap: 1.35rem;
    background: var(--surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.35rem;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

/* Vinyl Platter */
.vinyl-disc-wrap {
    width: 88px;
    height: 88px;
    flex-shrink: 0;
    position: relative;
    border-radius: 50%;
    background: radial-gradient(circle, #1a1a24 0%, #0d0d12 60%, #050508 100%);
    box-shadow: 
        0 8px 20px rgba(0, 0, 0, 0.65),
        inset 0 0 0 2px rgba(255, 255, 255, 0.06),
        inset 0 0 0 8px rgba(0, 0, 0, 0.6),
        inset 0 0 0 14px rgba(255, 255, 255, 0.03);
    display: flex;
    align-items: center;
    justify-content: center;
}

.vinyl-platter {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    box-shadow: 0 0 0 2px var(--color-border);
}

.vinyl-art {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vinyl-disc-wrap.spinning {
    animation: vinylSpin 14s linear infinite;
}

@keyframes vinylSpin {
    100% { transform: rotate(360deg); }
}

/* Track Metadata */
.track-metadata {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    overflow: hidden;
}

.track-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-artist {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-category-tag {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    padding: 0.18rem 0.55rem;
    border-radius: var(--radius-full);
    margin-top: 0.25rem;
    transition: color var(--transition-normal), border-color var(--transition-normal);
}

.track-meta-row {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-top: 0.2rem;
}

.live-visualizer-bars {
    display: inline-flex;
    align-items: flex-end;
    gap: 2px;
    height: 14px;
    padding: 0 2px;
}

.viz-bar {
    width: 2.5px;
    height: 10%;
    min-height: 2px;
    border-radius: 2px;
    background: linear-gradient(to top, var(--color-accent), var(--color-accent-secondary));
    transition: height 0.08s ease;
}

/* ========================================================
   SEEK BAR & TIME PROGRESS
======================================================== */
.playback-progress-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.time-display {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.35rem;
    font-family: var(--font-mono);
    font-size: 0.725rem;
    color: var(--color-text-muted);
}

.time-display span:first-child {
    color: var(--color-text);
}

.seek-bar-track {
    width: 100%;
    height: 5px;
    border-radius: var(--radius-full);
    background: var(--track-bg);
    position: relative;
    cursor: pointer;
    overflow: visible;
}

.seek-fill-bar {
    width: 0%;
    height: 100%;
    border-radius: var(--radius-full);
    background: var(--color-accent);
    position: relative;
    transition: width 80ms linear;
}

.seek-fill-bar::after {
    content: '';
    position: absolute;
    right: -5px;
    top: 50%;
    transform: translateY(-50%);
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 8px var(--color-accent-glow);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.seek-bar-track:hover .seek-fill-bar::after {
    opacity: 1;
}

.seek-hover-tooltip {
    position: absolute;
    top: -24px;
    transform: translateX(-50%);
    background: var(--surface-3);
    border: 1px solid var(--color-border-active);
    color: var(--color-text);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

/* ========================================================
   CONTROLS DOCK
======================================================== */
.audio-controls-dock {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.25rem 0;
}

.controls-playback-group,
.controls-utility-group {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.ctrl-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid transparent;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.ctrl-btn:hover {
    color: var(--color-text);
    background: var(--surface-hover);
    border-color: var(--color-border);
}

.ctrl-btn.active {
    color: var(--color-accent);
}

.play-hero-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-accent);
    border: none;
    color: #0c0f18;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: 0 4px 18px var(--color-accent-glow);
    transition: all var(--transition-fast);
}

.play-hero-btn:hover {
    transform: scale(1.04);
    box-shadow: 0 6px 24px var(--color-accent-glow);
}

.play-hero-btn:active {
    transform: scale(0.96);
}

/* Volume Slider Dock */
.volume-slider-dock {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0 0.55rem 0 0.25rem;
}

.volume-slider {
    width: 64px;
    accent-color: var(--color-accent);
    cursor: pointer;
}

/* ========================================================
   DROPDOWN FLYOUTS (EQUALIZER & PLAYLIST)
======================================================== */
.dropdown-wrapper {
    position: relative;
}

.dropdown-flyout {
    position: absolute;
    bottom: calc(100% + 12px);
    right: 0;
    width: 320px;
    background: var(--surface-3);
    border: 1px solid var(--color-border-active);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-deep);
    backdrop-filter: blur(20px);
    z-index: 100;
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-fast);
}

.dropdown-flyout.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Equalizer Menu */
.menu-header {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--color-border);
}

.menu-items {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.fx-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.55rem 0.75rem;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid transparent;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
}

.fx-option:hover {
    background: var(--surface-hover);
    border-color: var(--color-border);
}

.fx-option.active {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-accent);
}

.fx-option.active strong {
    color: var(--color-accent);
}

.fx-meta {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.fx-meta strong {
    font-size: 0.8rem;
}

.fx-meta small {
    font-size: 0.675rem;
    color: var(--color-text-muted);
}

.fx-check {
    color: var(--color-accent);
    font-size: 0.8rem;
}

/* Playlist Menu */
.playlist-header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.playlist-header span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.search-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--surface-0);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.65rem;
}

.search-wrap i {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.search-wrap input {
    background: transparent;
    border: none;
    color: var(--color-text);
    font-size: 0.75rem;
    font-family: var(--font-body);
    width: 100%;
    outline: none;
}

.playlist-items-scroll {
    max-height: 240px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.playlist-row {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.45rem 0.65rem;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid transparent;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
}

.playlist-row:hover {
    background: var(--surface-hover);
    border-color: var(--color-border);
}

.playlist-row.active {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-accent);
}

.playlist-row.active .row-title {
    color: var(--color-accent);
}

.row-num {
    font-family: var(--font-mono);
    font-size: 0.675rem;
    color: var(--color-text-muted);
    width: 18px;
    text-align: center;
}

.row-info {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

.row-title {
    font-size: 0.775rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.row-artist {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.row-duration {
    font-family: var(--font-mono);
    font-size: 0.675rem;
    color: var(--color-text-muted);
}

.no-tracks {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-align: center;
    padding: 1rem;
}

.audio-alert {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: #f87171;
    text-align: center;
}

.audio-alert.hidden {
    display: none;
}

/* ========================================================
   STUDIO FOOTER
======================================================== */
.studio-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.1rem;
    border-top: 1px solid var(--color-border);
    user-select: none;
}

.footer-copy,
.footer-meta {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
}

/* ========================================================
   LIGHT MODE STYLING FOR STUDIO AUDIO SUITE & FLYOUTS
======================================================== */
body.light-mode .cat-tab:hover {
    color: var(--color-text);
    background: rgba(15, 23, 42, 0.05);
}

body.light-mode .cat-tab.active {
    color: var(--color-text);
    background: #ffffff;
    border-color: rgba(15, 23, 42, 0.16);
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.06);
}

body.light-mode .now-playing-stage {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.1);
    box-shadow: 0 4px 16px -2px rgba(15, 23, 42, 0.05);
}

body.light-mode .track-category-tag {
    background: rgba(15, 23, 42, 0.05);
    border-color: rgba(15, 23, 42, 0.12);
}

body.light-mode .ctrl-btn:hover {
    color: var(--color-text);
    background: rgba(15, 23, 42, 0.06);
    border-color: rgba(15, 23, 42, 0.12);
}

body.light-mode .volume-slider-dock {
    background: #ffffff;
    border-color: rgba(15, 23, 42, 0.1);
}

body.light-mode .dropdown-flyout {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.12);
    box-shadow: 0 16px 36px -4px rgba(15, 23, 42, 0.14);
}

body.light-mode .flyout-header {
    border-color: rgba(15, 23, 42, 0.08);
}

body.light-mode .playlist-search {
    background: #f8fafc;
    border: 1px solid rgba(15, 23, 42, 0.1);
    color: var(--color-text);
}

body.light-mode .playlist-search:focus {
    border-color: var(--color-accent);
    background: #ffffff;
}

body.light-mode .playlist-row:hover {
    background: rgba(15, 23, 42, 0.04);
}

body.light-mode .playlist-row.playing {
    background: rgba(15, 23, 42, 0.08);
}

body.light-mode .fx-preset-btn {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.1);
}

body.light-mode .fx-preset-btn:hover {
    background: #f8fafc;
    border-color: rgba(15, 23, 42, 0.2);
}

body.light-mode .fx-preset-btn.active {
    background: rgba(15, 23, 42, 0.08);
    border-color: var(--color-accent);
}