/**
 * Mashup Finder Styles
 * Glassmorphism design matching ProDJ Pulse theme
 *
 * @package ProDJ Pulse
 */

/* ============================================
   MASHUP PAGE LAYOUT
   ============================================ */
.mashup-page {
    padding-top: calc(80px + var(--space-2xl));
}

/* ============================================
   TOOLS INTRODUCTION SECTION
   ============================================ */
.tools-intro {
    margin-bottom: var(--space-3xl);
}

.tools-intro-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.tools-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(236, 72, 153, 0.2));
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--accent-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.tools-intro-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.tools-intro-subtitle {
    font-size: var(--text-base);
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
}

/* Tools Cards Grid */
.tools-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.tool-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, transparent);
    transition: all var(--transition-base);
}

.tool-card:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-lg);
}

/* Mashup Card */
.tool-card--mashup::before {
    background: linear-gradient(90deg, #ec4899, #8b5cf6);
}

.tool-card--mashup.tool-card--active {
    border-color: rgba(236, 72, 153, 0.4);
    background: linear-gradient(145deg, rgba(236, 72, 153, 0.08), rgba(139, 92, 246, 0.05));
}

.tool-card--mashup .tool-card-icon {
    background: linear-gradient(135deg, #ec4899, #8b5cf6);
}

/* Convert Card */
.tool-card--convert::before {
    background: linear-gradient(90deg, #3b82f6, #06b6d4);
}

.tool-card--convert:hover {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
}

.tool-card--convert .tool-card-icon {
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
}

/* Card Icon */
.tool-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.tool-card-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

/* Card Content */
.tool-card-content {
    flex: 1;
}

.tool-card-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.tool-card-description {
    font-size: var(--text-sm);
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.tool-card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-lg) 0;
}

.tool-card-features li {
    position: relative;
    padding-left: var(--space-lg);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.tool-card-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
}

/* Card CTA */
.tool-card-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--accent-primary);
    transition: all var(--transition-base);
}

.tool-card:hover .tool-card-cta {
    gap: var(--space-sm);
}

.tool-card-cta svg {
    transition: transform var(--transition-base);
}

.tool-card:hover .tool-card-cta svg {
    transform: translateX(4px);
}

/* Active Badge */
.tool-card-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(236, 72, 153, 0.2);
    border: 1px solid rgba(236, 72, 153, 0.3);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 500;
    color: #f472b6;
}

@media (max-width: 768px) {
    .tools-cards {
        grid-template-columns: 1fr;
    }

    .tools-intro-title {
        font-size: var(--text-2xl);
    }

    .tool-card {
        padding: var(--space-lg);
    }
}

.mashup-hero {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.mashup-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    letter-spacing: -0.04em;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mashup-subtitle {
    font-size: var(--text-lg);
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.mashup-section {
    margin-bottom: var(--space-2xl);
}

.section-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.section-title-sm {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: 0;
}

.section-title-sm svg {
    color: var(--accent-primary);
}

.results-count {
    font-size: var(--text-sm);
    color: var(--text-muted);
    padding: var(--space-xs) var(--space-md);
    background: var(--glass-bg);
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
}

.results-controls {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ============================================
   SEARCH SECTION
   ============================================ */
.mashup-search-section {
    padding: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.search-container {
    margin: 0 auto;
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
    transition: all var(--transition-fast);
}

.search-icon {
    color: var(--text-muted);
    margin-left: var(--space-md);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: var(--text-base);
    padding: var(--space-sm) 0;
    outline: none;
}

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

.search-btn {
    flex-shrink: 0;
    padding: var(--space-sm) var(--space-lg);
    align-self: stretch;
}

/* ============================================
   TRACKS GRID
   ============================================ */
.tracks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: var(--space-md);
}

/* ============================================
   TRACK CARD
   ============================================ */
.track-card {
    display: flex;
    flex-direction: column;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: background var(--transition-base), border-color var(--transition-base);
}

.track-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

.track-row-main {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    cursor: pointer;
}

.track-card--reference {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow-sm);
}

.track-card--reference:hover {
    transform: none;
}

.track-card--selected {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px var(--accent-primary);
}

.track-card--selected .track-select-btn {
    background: var(--accent-primary);
    color: white;
}

.track-card--selected .track-select-btn svg polyline {
    stroke: white;
}

.track-cover {
    position: relative;
    width: 70px;
    min-height: 70px;
    flex-shrink: 0;
    overflow: hidden;
    cursor: pointer;
}

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

.track-play-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: 6px;
    opacity: 0;
    transition: opacity var(--transition-fast);
    color: white;
}

.track-cover:hover .track-play-overlay {
    opacity: 1;
}

/* Playing state - always visible */
.track-play-overlay.playing {
    opacity: 1;
    background: rgba(139, 92, 246, 0.8);
}

/* Loading state */
.track-play-overlay.loading {
    opacity: 1;
}

.track-play-overlay.loading::after {
    content: '';
    width: 24px;
    height: 24px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    position: absolute;
}

.track-play-overlay.loading svg {
    display: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.track-row-actions {
    display: flex;
    align-items: stretch;
    border-top: 1px solid var(--glass-border);
}

.track-row-actions .track-action-btn {
    flex: 1;
    justify-content: center;
    padding: var(--space-sm);
    border: none;
    border-radius: 0;
    border-right: 1px solid var(--glass-border);
}

.track-row-actions .track-action-btn:last-child {
    border-right: none;
}

.track-action-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: var(--text-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.track-action-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.track-action-btn svg {
    flex-shrink: 0;
}

.track-extract-btn {
    flex-direction: row-reverse;
}

.track-info {
    padding: var(--space-sm) var(--space-md);
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

/* Hover overlay for Select */
.track-info-overlay {
    position: absolute;
    inset: 0;
    background: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
    cursor: pointer;
    border-radius: 0;
    color: white;
    font-weight: 600;
    font-size: var(--text-sm);
}

.track-info-overlay svg {
    width: 18px;
    height: 18px;
}

.track-row-main:hover .track-info-overlay {
    opacity: 1;
}

.track-name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-artist {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    color: var(--text-secondary);
    padding: 2px 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.meta-item svg {
    color: var(--accent-primary);
}

.meta-bpm svg { color: #f59e0b; }
.meta-key svg { color: #8b5cf6; }
.meta-energy svg { color: #ef4444; }

/* ============================================
   SELECTED TRACK
   ============================================ */
.selected-track-container {
    padding: var(--space-xl);
}

.selected-track {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--space-xl);
}

.selected-track-cover {
    aspect-ratio: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-glow);
}

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

.selected-track-details {
    display: flex;
    flex-direction: column;
}

.selected-track-name {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.selected-track-artist {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.selected-track-album {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.selected-track-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.stat-box {
    text-align: center;
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    min-width: 80px;
}

.stat-box--highlight {
    background: var(--accent-muted);
    border-color: var(--accent-primary);
}

.stat-box .stat-value {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.stat-box .stat-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.selected-track-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.feature-bar {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.feature-label {
    width: 100px;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.feature-progress {
    flex: 1;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.feature-fill {
    height: 100%;
    background: var(--gradient-purple);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.feature-value {
    width: 45px;
    font-size: var(--text-sm);
    color: var(--text-muted);
    text-align: right;
}

.compatible-keys {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.compatible-keys-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.compatible-keys-list {
    display: flex;
    gap: var(--space-xs);
}

.key-badge {
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.key-badge--active {
    background: var(--accent-muted);
    border-color: var(--accent-primary);
    color: var(--accent-secondary);
}

.selected-track-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: auto;
}

/* ============================================
   EXPLORATION CONTROLS
   ============================================ */
.exploration-controls {
    padding: var(--space-xl);
    margin-top: var(--space-lg);
}

.controls-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.control-group label {
    display: block;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.control-group--locked {
    opacity: 0.5;
}

.control-group--locked .lock-icon {
    margin-left: 0.5rem;
    color: var(--text-muted);
    display: inline-flex;
    vertical-align: middle;
}

.control-input-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.control-input-group .form-input {
    flex: 1;
    width: auto;
    min-width: 80px;
}

.control-unit {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* Custom Checkbox - Glassmorphism Toggle */
.form-checkbox {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    min-width: 20px;
    background: var(--bg-elevated);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    flex-shrink: 0;
}

.form-checkbox:hover {
    border-color: var(--glass-border-hover);
    background: var(--glass-bg-hover);
}

.form-checkbox:checked {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 12px var(--accent-muted);
}

.form-checkbox:checked::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 6px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.form-checkbox:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.controls-actions {
    display: flex;
    justify-content: center;
}

.btn-lg {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--text-base);
}

/* ============================================
   PROGRESS SECTION
   ============================================ */
.progress-container {
    padding: var(--space-xl);
}

.progress-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.progress-header h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.progress-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-top: var(--space-md);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-xs);
}

/* ============================================
   REFERENCE TRACK
   ============================================ */
.reference-track-wrapper {
    position: sticky;
    top: 85px;
    z-index: 10;
    background: var(--bg-primary);
    padding: var(--space-sm) 0;
    margin-bottom: var(--space-lg);
}

.reference-bar {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-sm) var(--space-md);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.15);
}

.reference-bar-label {
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(139, 92, 246, 0.15);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.reference-bar-cover {
    width: 48px;
    min-height: 48px;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.reference-bar-cover img {
    border-radius: var(--radius-md);
}

.reference-bar-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 120px;
    max-width: 200px;
}

.reference-bar-name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.reference-bar-artist {
    font-size: var(--text-xs);
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.reference-bar-stats {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-left: auto;
}

.reference-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    min-width: 50px;
}

.reference-stat-value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.reference-stat-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.reference-stat--highlight .reference-stat-value {
    color: var(--accent-primary);
    font-weight: 700;
}

.reference-bar-spotify {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: rgba(30, 215, 96, 0.1);
    color: #1ed760;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.reference-bar-spotify:hover {
    background: rgba(30, 215, 96, 0.2);
    transform: scale(1.05);
}


/* ============================================
   LOADING & EMPTY STATES
   ============================================ */
.loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
    gap: var(--space-md);
    color: var(--text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.error-message,
.empty-message {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
    text-align: center;
    color: var(--text-muted);
}

.error-message svg,
.empty-message svg {
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

.error-message p,
.empty-message p {
    margin: 0;
}

/* ============================================
   MODAL
   ============================================ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}

.modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 760px;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--space-xl);
    animation: fadeIn 0.3s ease;
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 1;
}

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

/* Modal Track Content */
.modal-track-header {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.modal-cover {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    box-shadow: var(--shadow-glow-sm);
}

.modal-track-info {
    flex: 1;
}

.modal-track-name {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.modal-track-artist {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.modal-track-album {
    font-size: var(--text-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
}

.modal-track-meta {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin: 0;
}

.modal-stats-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.modal-stat {
    text-align: center;
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    min-width: 70px;
    flex: 1;
}

.modal-stat--highlight {
    background: var(--accent-muted);
    border-color: var(--accent-primary);
}

.modal-stat-value {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.modal-stat-label {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.modal-features h3 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.modal-features-grid {
    display: grid;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.modal-feature {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.modal-feature-header {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.modal-feature-bar {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.modal-feature-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.modal-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

/* ============================================
   FORM INPUTS
   ============================================ */
.form-input-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
}

.filter-group,
.sort-group {
    min-width: 150px;
}

.sort-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .mashup-title {
        font-size: var(--text-3xl);
    }

    .search-input-wrapper {
        flex-direction: column;
        padding: var(--space-md);
    }

    .search-input {
        width: 100%;
        text-align: center;
    }

    .search-btn {
        width: 100%;
    }

    .search-icon {
        display: none;
    }

    .selected-track {
        grid-template-columns: 1fr;
    }

    .selected-track-cover {
        max-width: 250px;
        margin: 0 auto;
    }

    .selected-track-stats {
        justify-content: center;
    }

    .selected-track-actions {
        flex-direction: column;
    }

    .tracks-grid {
        grid-template-columns: 1fr;
    }

    .section-header-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .results-controls {
        width: 100%;
    }

    .filter-group,
    .sort-group {
        flex: 1;
    }

    .modal-track-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .modal-cover {
        width: 120px;
        height: 120px;
    }

    .modal-actions {
        flex-direction: column;
    }

    .reference-track-wrapper {
        position: relative;
        top: auto;
    }

    .reference-bar {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .reference-bar-stats {
        width: 100%;
        justify-content: space-around;
        margin-left: 0;
        padding-top: var(--space-sm);
        border-top: 1px solid var(--glass-border);
    }
}

@media (max-width: 480px) {
    .controls-grid {
        grid-template-columns: 1fr 1fr;
    }

    .tracks-grid {
        grid-template-columns: 1fr;
    }

    .modal-stats-grid {
        justify-content: center;
    }
}

/* ============================================
   UTILITIES
   ============================================ */
.hidden {
    display: none !important;
}