/**
 * MusicParty - Responsive Styles
 * Mobile-first responsive design
 */

/* ============================================
   Tablet and Below
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 0px;
    }

    #header {
        padding: 0 var(--spacing-lg);
    }

    body.sidebar-open {
        overflow: hidden;
    }

    body.sidebar-open::after {
        content: '';
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.55);
        z-index: 99;
    }
    
    #sidebar {
        transform: translateX(-100%);
        width: min(320px, 86vw);
    }
    
    #sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .playback-stats-grid,
    .playback-dashboard {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    #sidebar-toggle {
        display: flex;
    }
    
    /* Player adjustments */
    .player-info {
        width: 200px;
    }
    
    .player-cover {
        width: 48px;
        height: 48px;
    }
    
    .player-volume {
        width: 100px;
    }
    
    .volume-slider-wrapper {
        display: none;
    }
    
    /* Genre cards */
    .genre-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
    
    /* Song grid */
    .song-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }

    .smart-playlists-panel {
        width: min(380px, 92vw);
    }
}

/* ============================================
   Mobile Landscape
   ============================================ */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --player-height: 70px;
        --mini-player-height: 64px;
    }

    html {
        font-size: 15px;
    }

    #header {
        padding: 0 var(--spacing-md);
        gap: var(--spacing-sm);
    }

    .header-left {
        gap: var(--spacing-sm);
        min-width: 0;
    }

    .header-right {
        flex-shrink: 0;
    }

    .playback-stats-grid,
    .playback-dashboard,
    .artist-ranking-list {
        grid-template-columns: 1fr;
    }
    
    /* Header */
    .header-center {
        display: none;
    }
    
    .header-logo {
        width: 144px;
        height: 38px;
    }

    .language-switcher .btn {
        min-width: 48px;
        padding-inline: 10px;
    }
    
    /* Main content */
    .main-content {
        padding: var(--spacing-md);
        padding-bottom: calc(var(--mini-player-height) + var(--spacing-xl));
    }

    .page-header {
        margin-bottom: var(--spacing-xl);
    }

    .page-title {
        align-items: flex-start;
        gap: var(--spacing-sm);
        line-height: 1.25;
    }

    .page-subtitle {
        line-height: 1.45;
    }

    .institutional-page {
        padding: var(--spacing-md);
    }

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

    .institutional-contact {
        align-items: flex-start;
        flex-direction: column;
    }
    
    /* Welcome section */
    .welcome-section {
        padding: var(--spacing-lg);
        border-radius: var(--radius-lg);
    }

    .welcome-layout {
        align-items: flex-start;
        flex-direction: column;
    }
    
    .welcome-title {
        font-size: 2rem;
    }
    
    .welcome-subtitle {
        font-size: 1rem;
    }
    
    .welcome-stats {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: var(--spacing-md);
        width: 100%;
    }

    .donation-card {
        width: 100%;
        max-width: 420px;
        justify-content: space-between;
    }

    .donation-qr {
        width: 96px;
        height: 96px;
        flex-basis: 96px;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .welcome-visual {
        display: none;
    }

    .visual-circle {
        display: none;
    }
    
    /* Section titles */
    .section-title {
        font-size: 1.25rem;
    }

    .section-header {
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .section-header .btn-see-all {
        flex-shrink: 0;
        padding-top: 2px;
    }
    
    /* Genre cards */
    .genre-grid {
        grid-template-columns: 1fr;
    }
    
    .genre-card {
        height: 140px;
    }

    .genre-card-content {
        padding: var(--spacing-md);
    }

    .genre-avatar {
        width: 54px;
        height: 54px;
    }
    
    /* Song cards */
    .song-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .song-card {
        padding: var(--spacing-sm);
    }
    
    .song-cover {
        margin-bottom: var(--spacing-sm);
    }
    
    .song-title {
        font-size: 0.8125rem;
    }
    
    .song-artist {
        font-size: 0.75rem;
    }
    
    .song-actions {
        opacity: 1;
        justify-content: space-between;
    }

    .btn-action {
        width: 34px;
        height: 34px;
    }

    .song-list-item,
    .genre-song-item,
    .queue-item {
        gap: var(--spacing-sm);
    }

    .song-list-duration,
    .genre-song-duration,
    .queue-duration {
        display: none;
    }

    .song-list-actions .btn-icon {
        width: 32px;
        height: 32px;
    }

    .playlist-preview-btn {
        width: 34px;
        height: 34px;
        flex-basis: 34px;
    }
    
    /* Player bar */
    #player-bar {
        padding: 0 var(--spacing-md);
        padding-bottom: env(safe-area-inset-bottom);
    }

    #player-bar:not(.expanded) {
        display: none;
    }

    #player-bar.expanded {
        display: flex;
        bottom: var(--mini-player-height);
        height: calc(100dvh - var(--header-height) - var(--mini-player-height));
        align-items: flex-start;
        overflow-y: auto;
        padding: var(--spacing-md);
    }
    
    .player-info {
        width: auto;
        flex: 1;
    }
    
    .player-cover {
        width: 44px;
        height: 44px;
    }
    
    #player-title {
        font-size: 0.8125rem;
    }
    
    #player-artist {
        font-size: 0.6875rem;
    }
    
    #player-genre {
        display: none;
    }
    
    .player-controls {
        display: none;
    }
    
    /* Mini player */
    #mini-player {
        display: flex;
    }
    
    /* Hide regular player on mobile */
    #player-bar .player-controls,
    #player-bar .player-volume {
        display: none;
    }

    #visualizer-canvas {
        opacity: 0.30;
    }

    .player-advanced-controls,
    #sleep-timer-display {
        display: none;
    }

    .smart-playlists-panel {
        left: 0;
        right: 0;
        width: 100%;
        height: calc(100vh - var(--header-height) - var(--mini-player-height));
        height: calc(100dvh - var(--header-height) - var(--mini-player-height));
    }

    .panel-header,
    .panel-content {
        padding: var(--spacing-md);
    }

    .playlist-category {
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .playlist-actions {
        align-self: center;
        flex-shrink: 0;
    }

    .eq-bands {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 8px;
    }

    .modal-dialog {
        margin: var(--spacing-sm);
    }

    .modal-content {
        max-height: calc(100dvh - var(--spacing-lg));
        overflow: hidden;
    }

    .modal-body {
        overflow-y: auto;
    }

    .playback-chart {
        min-height: 180px;
    }

    .dashboard-panel,
    .playback-stat-card {
        padding: var(--spacing-md);
    }

    .genre-item-content {
        align-items: flex-start;
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .genre-item-info {
        width: 100%;
        min-width: 0;
    }

    .genre-item-actions {
        width: 100%;
        flex-wrap: wrap;
    }

    .genre-item-actions .btn {
        flex: 1 1 140px;
    }
    
    
    /* Queue */
    .queue-item {
        padding: var(--spacing-sm);
    }
    
    .queue-cover {
        width: 36px;
        height: 36px;
    }
    
    .queue-title {
        font-size: 0.8125rem;
    }
    
    .queue-artist {
        font-size: 0.6875rem;
    }
    
    /* Search filters */
    .search-filters {
        flex-direction: column;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-group .form-select {
        width: 100%;
    }
    
    /* Page titles */
    .page-title {
        font-size: 1.5rem;
    }
    
    /* Buttons */
    .songs-header {
        flex-wrap: wrap;
    }
    
    .songs-header .form-control,
    .songs-header .form-select {
        flex: 1 1 240px;
        min-width: 200px;
    }

    .songs-header .btn {
        flex: 1 1 140px;
        min-width: 140px;
    }
}

/* ============================================
   Universal Responsive Hardening
   ============================================ */
@media (max-width: 1280px) {
    .main-content {
        min-width: 0;
    }

    .welcome-layout {
        align-items: flex-start;
    }

    .welcome-title {
        font-size: 2.5rem;
    }

    .welcome-stats {
        flex-wrap: wrap;
        gap: var(--spacing-lg);
    }

    .donation-card {
        max-width: min(360px, 100%);
    }

    .player-info {
        width: min(280px, 30vw);
    }

    .player-volume {
        width: 180px;
    }
}

@media (min-width: 769px) and (max-width: 1180px) {
    .header-center {
        max-width: min(420px, 42vw);
        margin: 0 var(--spacing-lg);
    }

    .welcome-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
    }

    .donation-card {
        width: 100%;
        max-width: 520px;
    }

    .genre-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    .song-grid {
        grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    }

    .songs-header {
        flex-wrap: wrap;
    }

    .songs-header .form-control,
    .songs-header .form-select {
        flex: 1 1 220px;
    }
}

@media (max-width: 640px) {
    .header-logo {
        width: 128px;
        height: 34px;
    }

    .welcome-section {
        margin-bottom: var(--spacing-xl);
    }

    .welcome-stats,
    .about-musicparty-stats {
        gap: var(--spacing-sm);
    }

    .stat-item,
    .about-musicparty-stats span {
        min-width: 0;
    }

    .donation-card {
        flex-wrap: wrap;
    }

    .donation-copy {
        flex: 1 1 180px;
    }

    .song-list-actions,
    .queue-actions {
        flex-shrink: 0;
    }

    .song-list-title,
    .queue-title,
    .genre-song-title,
    .playlist-name,
    .song-title,
    .genre-name {
        overflow-wrap: anywhere;
    }

    .smart-playlists-panel {
        bottom: calc(var(--player-height) + var(--mini-player-height));
        height: auto;
        max-height: calc(100dvh - var(--header-height) - var(--player-height) - var(--mini-player-height));
    }

    .playlist-category {
        min-width: 0;
    }

    .category-info {
        min-width: 0;
        flex: 1;
    }

    .category-info h6,
    .category-info p {
        overflow-wrap: anywhere;
    }

    .modal-footer {
        flex-wrap: wrap;
    }

    .modal-footer .btn {
        flex: 1 1 120px;
    }
}

/* ============================================
   Small Mobile
   ============================================ */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    #header {
        padding: 0 var(--spacing-sm);
    }

    #sidebar-toggle {
        padding: 6px;
    }

    .main-content {
        padding: var(--spacing-sm);
        padding-bottom: calc(var(--mini-player-height) + var(--spacing-xl));
    }

    /* Song grid - single column */
    .song-grid {
        grid-template-columns: 1fr;
    }
    
    /* Genre card */
    .genre-card {
        min-height: 132px;
        height: auto;
    }
    
    .genre-icon {
        font-size: 2rem;
    }
    
    .genre-name {
        font-size: 1.2rem;
        line-height: 1.18;
        overflow-wrap: anywhere;
    }

    .genre-description,
    .genre-song-count,
    .genre-access-count {
        margin-bottom: 0.25rem;
    }
    
    /* Welcome section */
    .welcome-title {
        font-size: 1.65rem;
    }
    
    .welcome-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    .stat-item {
        flex: 1;
        min-width: 80px;
    }

    .donation-card {
        align-items: center;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
        max-width: none;
    }

    .donation-title {
        font-size: 0.875rem;
    }

    .donation-text {
        font-size: 0.75rem;
    }

    .donation-qr {
        width: 84px;
        height: 84px;
        flex-basis: 84px;
        padding: 4px;
    }
    
    /* Queue item */
    .queue-index {
        display: none;
    }
    
    /* Header */
    .header-right {
        gap: var(--spacing-sm);
    }

    .header-logo {
        width: 118px;
        height: 32px;
    }

    .page-title {
        font-size: 1.35rem;
    }

    .page-subtitle {
        font-size: 0.9rem;
    }

    .section-header {
        flex-direction: column;
    }

    .btn-see-all {
        align-self: flex-start;
    }

    .playback-stat-card strong {
        font-size: 1.45rem;
    }

    .artist-ranking-item,
    .song-list-item,
    .queue-item,
    .genre-song-item {
        padding: var(--spacing-sm);
    }

    .artist-ranking-item img,
    .song-list-cover {
        width: 42px;
        height: 42px;
    }

    .category-icon {
        width: 42px;
        height: 42px;
    }

    .playlist-actions .player-btn {
        width: 30px;
        height: 30px;
    }

    .playlist-preview-btn {
        width: 32px;
        height: 32px;
        flex-basis: 32px;
    }

    .sleep-timer-options,
    .crossfade-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    
    /* Notification */
    .notification-container {
        left: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .notification {
        width: 100%;
    }
}

@media (max-width: 420px) {
    .header-logo {
        width: 104px;
        height: 30px;
    }

    .language-switcher .btn {
        min-width: 42px;
        padding-inline: 8px;
    }

    .language-switcher .btn span {
        max-width: 24px;
        overflow: hidden;
    }

    .welcome-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .donation-card {
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
    }

    .donation-copy {
        flex: 0 1 auto;
    }

    .donation-qr {
        align-self: center;
    }

    .song-list-cover,
    .queue-cover,
    .artist-ranking-item img {
        width: 38px;
        height: 38px;
    }

    .song-list-actions .btn-icon,
    .queue-actions .btn-icon,
    .playlist-preview-btn {
        width: 30px;
        height: 30px;
        flex-basis: 30px;
    }

    .about-musicparty-contact {
        align-items: flex-start;
        flex-direction: column;
    }
}

/* ============================================
   Very Small Phones
   ============================================ */
@media (max-width: 360px) {
    .welcome-stats,
    .playback-stats-grid {
        grid-template-columns: 1fr;
    }

    .donation-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .donation-qr {
        align-self: center;
    }

    .mini-controls {
        gap: 2px;
    }

    .mini-controls button {
        width: 32px;
        height: 32px;
    }

    .genre-item-actions .btn,
    .songs-header .btn {
        flex-basis: 100%;
    }

    .header-left {
        gap: 6px;
    }

    .header-logo {
        width: 92px;
        height: 28px;
    }

    .main-content {
        padding-left: 8px;
        padding-right: 8px;
    }

    .song-list-item,
    .queue-item,
    .genre-song-item,
    .artist-ranking-item {
        gap: 8px;
    }

    .song-list-actions {
        gap: 4px;
    }
}

/* ============================================
   Short Landscape Devices
   ============================================ */
@media (max-height: 520px) and (orientation: landscape) {
    :root {
        --header-height: 54px;
        --player-height: 64px;
        --mini-player-height: 0px;
    }

    #mini-player {
        display: none !important;
    }

    #player-bar:not(.expanded) {
        display: flex;
    }

    .main-content {
        padding-bottom: calc(var(--player-height) + var(--spacing-md));
    }

    .welcome-section {
        padding: var(--spacing-md);
    }

    .welcome-visual,
    .visual-circle,
    .donation-card {
        display: none;
    }

    .main-content {
        padding-top: var(--spacing-sm);
    }

    .song-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    .genre-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    .genre-card {
        min-height: 118px;
    }

    .modal-content {
        max-height: calc(100dvh - 16px);
    }
}

/* ============================================
   Large Screens
   ============================================ */
@media (min-width: 1440px) {
    :root {
        --sidebar-width: 300px;
    }
    
    .main-content {
        max-width: 1400px;
        margin: 0 auto;
        margin-left: var(--sidebar-width);
    }
    
    .song-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }

    .genre-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

    .welcome-title {
        font-size: 3.25rem;
    }
}

/* ============================================
   Extra Large Screens
   ============================================ */
@media (min-width: 1920px) {
    .main-content {
        max-width: 1600px;
    }
    
    .song-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .genre-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

/* ============================================
   Smart TV / Very Large Displays
   ============================================ */
@media (min-width: 2560px) {
    :root {
        --sidebar-width: 340px;
        --header-height: 84px;
        --player-height: 108px;
    }

    html {
        font-size: 18px;
    }

    .main-content {
        max-width: 1900px;
        padding: var(--spacing-2xl);
        padding-bottom: calc(var(--player-height) + var(--spacing-2xl));
    }

    .header-logo {
        width: 220px;
        height: 56px;
    }

    .header-center {
        max-width: 720px;
    }

    .song-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .genre-grid {
        grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    }

    .genre-card {
        height: 220px;
    }

    .smart-playlists-panel {
        width: 460px;
    }
}

/* ============================================
   Dark Mode (System Preference)
   ============================================ */
@media (prefers-color-scheme: dark) {
    /* Already dark theme, but can add overrides here */
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    #loading-screen,
    #sidebar,
    #header,
    #player-bar,
    #mini-player {
        display: none !important;
    }
    
    .main-content {
        margin: 0;
        padding: 0;
    }
    
    body {
        background: white;
        color: black;
    }
}