/* Optimalizovaný CSS soubor pro multimediální přehrávač */

/* CSS proměnné pro sjednocení barev a opakujících se hodnot */
:root {
    /* Základní barvy pozadí */
    --bg-main: #121212;
    --bg-section: #1e1e1e;
    --bg-element: #2d2d2d;
    --bg-element-hover: #3d3d3d;
    --bg-element-active: #1a3d5c;
    
    /* Barvy textu */
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    
    /* Barvy tlačítek a akcí */
    --btn-primary: #db7934;
    --btn-primary-hover: #b34d05;
    --btn-danger: #220300;
    --btn-danger-hover: #c0392b;
    --btn-success: #2ecc71;
    --btn-success-hover: #27ae60;
    --btn-neutral: #7f8c8d;
    --btn-neutral-hover: #95a5a6;
    
    /* Okraje a stíny */
    --border-radius-sm: 4px;
    --border-radius-md: 6px;
    --border-radius-lg: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    --box-shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.2);
    
    /* Základní rozměry a mezery */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 25px;
    --spacing-xxl: 30px;
}

/* Reset a základní styly */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    padding-bottom: env(safe-area-inset-bottom);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-md);
}

section, .section {
    margin-bottom: var(--spacing-xl);
    width: 100%;
}

/* Kontejner aplikace */
#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: var(--spacing-sm);
    width: 100%;
    margin: 0 auto;
    max-width: 1200px;
}

/* Hlavička aplikace */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--bg-element-hover);
    width: 100%;
}

.header-title h1 {
    margin: 0;
    font-size: 28px;
}

.header-auth {
    display: flex;
    align-items: center;
}

/* Přihlášení/Registrace */
#user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

#logged-username {
    font-weight: bold;
    color: var(--btn-primary);
}

#auth-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

/* Autentizační modaly */
#auth-modals {
    position: relative;
}

#welcome-message {
    text-align: center;
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background-color: var(--bg-section);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

#welcome-message p {
    color: var(--text-secondary);
    font-size: 16px;
}

#auth-forms {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100;
    width: 100%;
    max-width: 400px;
}

#auth-forms form {
    background-color: var(--bg-element);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.form-buttons {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

/* Tlačítka */
button, 
.btn {
    padding: 8px 16px;
    background-color: var(--btn-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.2s, transform 0.1s;
}

button:hover,
.btn:hover {
    background-color: var(--btn-primary-hover);
}

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

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

.btn-success {
    background-color: var(--btn-success);
}

.btn-success:hover {
    background-color: var(--btn-success-hover);
}

.btn-neutral {
    background-color: var(--btn-neutral);
}

.btn-neutral:hover {
    background-color: var(--btn-neutral-hover);
}

#show-register {
    background-color: var(--btn-success);
}

#show-register:hover {
    background-color: var(--btn-success-hover);
}

#logoutButton {
    background-color: var(--btn-danger);
}

#logoutButton:hover {
    background-color: var(--btn-danger-hover);
}

.cancel-auth {
    background-color: var(--btn-neutral);
}

.cancel-auth:hover {
    background-color: var(--btn-neutral-hover);
}

/* Formuláře */
input[type="text"], 
input[type="password"],
input[type="file"] {
    width: 100%;
    padding: 12px;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--bg-element-hover);
    border-radius: var(--border-radius-sm);
    font-size: 16px;
    background-color: var(--bg-element-hover);
    color: var(--text-primary);
    transition: border-color 0.2s;
}

input[type="text"]:focus, 
input[type="password"]:focus,
input[type="file"]:focus {
    border-color: var(--btn-primary);
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* Sekce vyhledávání */
#search-section {
    margin-bottom: var(--spacing-xl);
}

#search {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

#searchInput {
    flex: 1;
}

#searchResults {
    margin-top: var(--spacing-sm);
}

.search-result {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-element);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-xs);
    transition: background-color 0.2s;
}

.search-result:hover {
    background-color: var(--bg-element-hover);
}

/* Přehrávač */
#player-section {
    margin-bottom: var(--spacing-xl);
}

.player-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--bg-section) 0%, #1a1a1a 100%);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.audio-player-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

#audioPlayer {
    width: 100%;
    height: 40px;
    border-radius: 20px;
    background-color: var(--bg-element);
    opacity: 0.7;
}

#audioPlayer::-webkit-media-controls-panel {
    background-color: var(--bg-element);
}

#audioPlayer::-webkit-media-controls-current-time-display,
#audioPlayer::-webkit-media-controls-time-remaining-display {
    color: var(--text-primary);
}

/* Custom Player */
.custom-player {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

/* Audio Vizualizace */
.audio-visualizer {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 2px;
    height: 100px;
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(30, 30, 30, 0.6));
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    position: relative;
}

.audio-visualizer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        rgba(219, 121, 52, 0.1) 0%, 
        rgba(46, 204, 113, 0.1) 50%, 
        rgba(52, 152, 219, 0.1) 100%);
    pointer-events: none;
}

.visualizer-bar {
    flex: 1;
    max-width: 8px;
    min-width: 3px;
    background: linear-gradient(to top, #666, #999);
    border-radius: 2px 2px 0 0;
    height: 3px;
    transition: all 0.1s ease-out;
    opacity: 0.3;
    position: relative;
    z-index: 1;
}

/* Odstranění starých animací - nyní řízeno JavaScriptem */
.visualizer-bar:nth-child(1),
.visualizer-bar:nth-child(2),
.visualizer-bar:nth-child(3),
.visualizer-bar:nth-child(4),
.visualizer-bar:nth-child(5),
.visualizer-bar:nth-child(6),
.visualizer-bar:nth-child(7),
.visualizer-bar:nth-child(8),
.visualizer-bar:nth-child(9),
.visualizer-bar:nth-child(10),
.visualizer-bar:nth-child(11),
.visualizer-bar:nth-child(12),
.visualizer-bar:nth-child(13),
.visualizer-bar:nth-child(14),
.visualizer-bar:nth-child(15),
.visualizer-bar:nth-child(16),
.visualizer-bar:nth-child(17),
.visualizer-bar:nth-child(18),
.visualizer-bar:nth-child(19),
.visualizer-bar:nth-child(20),
.visualizer-bar:nth-child(21),
.visualizer-bar:nth-child(22),
.visualizer-bar:nth-child(23),
.visualizer-bar:nth-child(24),
.visualizer-bar:nth-child(25),
.visualizer-bar:nth-child(26),
.visualizer-bar:nth-child(27),
.visualizer-bar:nth-child(28),
.visualizer-bar:nth-child(29),
.visualizer-bar:nth-child(30),
.visualizer-bar:nth-child(31),
.visualizer-bar:nth-child(32) {
    animation: none;
}

.audio-visualizer.playing .visualizer-bar {
    transition: all 0.1s ease-out;
}

.audio-visualizer.paused .visualizer-bar {
    height: 3px !important;
    opacity: 0.3 !important;
    background: linear-gradient(to top, #666, #999) !important;
    box-shadow: none !important;
}

/* User Dropdown Menu */
.user-dropdown {
    position: relative;
    display: inline-block;
}

.user-trigger {
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.user-trigger:hover {
    background-color: var(--bg-element-hover);
}

.dropdown-icon {
    transition: transform 0.3s ease;
}

.user-dropdown:hover .dropdown-icon {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-element);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.user-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: background-color 0.3s ease;
    border-radius: var(--border-radius-sm);
    margin: 2px;
}

.dropdown-item:hover {
    background-color: var(--bg-element-hover);
    color: var(--btn-primary);
}

.dropdown-item i {
    width: 16px;
    text-align: center;
}

/* Admin Panel Styles */
.section {
    background: linear-gradient(135deg, var(--bg-element) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.section h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.5em;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section h2 i {
    color: var(--btn-primary);
    font-size: 1.2em;
}

.upload-container {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    font-size: 0.95em;
}

.form-group input[type="text"],
.form-group input[type="file"],
.form-group select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 1em;
    transition: all 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="file"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--btn-primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(219, 121, 52, 0.2);
}

.form-group input[type="file"] {
    padding: var(--spacing-sm);
    cursor: pointer;
}

.form-group input[type="file"]::-webkit-file-upload-button {
    background: var(--btn-primary);
    color: white;
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    margin-right: var(--spacing-sm);
    font-weight: 500;
}

.progress-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
}

.progress-container progress {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
}

.progress-container progress::-webkit-progress-bar {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.progress-container progress::-webkit-progress-value {
    background: linear-gradient(90deg, var(--btn-primary), #ff6b35);
    border-radius: 4px;
}

.progress-container #progressText {
    color: var(--text-primary);
    font-weight: 600;
    min-width: 40px;
}

.admin-album {
    position: relative;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-album:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
}

.album-admin-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.album-admin-actions .btn {
    flex: 1;
    font-size: 0.85em;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-weight: 500;
}

.create-playlist,
.create-tag,
.albums-filter {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
}

.form-group.inline {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
}

.form-group.inline input[type="text"] {
    flex: 1;
    min-width: 200px;
}

.form-group.inline input[type="color"] {
    width: 50px;
    height: 42px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    background: transparent;
    transition: all 0.3s ease;
}

.form-group.inline input[type="color"]:hover {
    border-color: var(--btn-primary);
    transform: scale(1.05);
}

.form-group.inline select {
    min-width: 150px;
}

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.tag-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.tag-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
}

.tag-preview {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    color: white;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.7);
    font-size: 0.9em;
    letter-spacing: 0.5px;
}

.tag-actions .btn {
    padding: var(--spacing-xs);
    min-width: auto;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.playlist-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.playlist-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.playlist-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.2);
}

.playlist-info {
    flex: 1;
}

.playlist-name {
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 1.1em;
}

.playlist-stats {
    color: var(--text-secondary);
    font-size: 0.9em;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.playlist-stats::before {
    content: "♪";
    color: var(--btn-primary);
    font-weight: bold;
}

.playlist-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.playlist-actions .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9em;
    font-weight: 500;
    min-width: 100px;
}

/* Enhanced Upload Form Styles */
.upload-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: 1em;
}

.form-group label i {
    color: var(--btn-primary);
    width: 20px;
}

.file-input-wrapper {
    position: relative;
    overflow: hidden;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    left: -9999px;
    opacity: 0;
}

.file-input-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 120px;
}

.file-input-preview:hover {
    border-color: var(--btn-primary);
    background: linear-gradient(135deg, rgba(219, 121, 52, 0.1) 0%, rgba(219, 121, 52, 0.05) 100%);
    transform: translateY(-2px);
}

.file-input-preview i {
    font-size: 2em;
    color: var(--btn-primary);
    margin-bottom: var(--spacing-sm);
}

.file-input-preview span {
    color: var(--text-secondary);
    font-weight: 500;
    text-align: center;
}

.file-input-preview.has-files {
    border-color: var(--btn-success);
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.1) 0%, rgba(46, 204, 113, 0.05) 100%);
}

.file-input-preview.has-files i {
    color: var(--btn-success);
}

.file-input-preview.has-files span {
    color: var(--btn-success);
}

.form-actions {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1em;
    font-weight: 600;
    min-width: 200px;
    box-shadow: 0 4px 16px rgba(219, 121, 52, 0.3);
    transition: all 0.3s ease;
}

.btn-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(219, 121, 52, 0.4);
}

.upload-progress {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.progress-header {
    margin-bottom: var(--spacing-md);
}

.progress-header h4 {
    color: var(--text-primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.progress-header i {
    color: var(--btn-primary);
}

/* Admin Grid Layout */
.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.admin-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.admin-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.2);
}

.admin-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.2em;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.admin-card h3 i {
    color: var(--btn-primary);
}

/* Empty State Styles */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3em;
    color: rgba(255, 255, 255, 0.2);
    margin-bottom: var(--spacing-md);
}

.empty-state p {
    font-size: 1.1em;
    margin: 0;
}

/* Admin Layout Styles */
.admin-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    align-items: start;
}

.admin-column-left,
.admin-column-right {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.admin-column-left .section,
.admin-column-right .section {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .admin-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .admin-column-left .section,
    .admin-column-right .section {
        margin-bottom: var(--spacing-lg);
    }
}

/* Player Controls */
.player-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    margin: var(--spacing-md) 0;
}

.player-control-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: var(--bg-element);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.player-control-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.player-control-btn.primary {
    background: linear-gradient(135deg, var(--btn-primary), #ff6b35);
    color: white;
    box-shadow: 0 4px 20px rgba(219, 121, 52, 0.4);
}

.player-control-btn.primary:hover {
    box-shadow: 0 6px 25px rgba(219, 121, 52, 0.6);
    transform: translateY(-3px) scale(1.05);
}

.player-control-btn.large {
    width: 70px;
    height: 70px;
    font-size: 24px;
}

.player-control-btn.secondary {
    background: var(--bg-element-hover);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.player-control-btn.secondary:hover {
    background: var(--btn-primary);
    border-color: var(--btn-primary);
    color: white;
}

/* Player Progress */
.player-progress {
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    cursor: pointer;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--btn-primary), #ff6b35);
    border-radius: 4px;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px rgba(219, 121, 52, 0.5);
}

.progress-handle {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translate(50%, -50%);
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.progress-bar:hover .progress-handle {
    opacity: 1;
}

.progress-times {
    display: flex;
    justify-content: space-between;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* Volume Control */
.volume-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-md);
    min-width: 200px;
}

.volume-icon {
    color: var(--text-secondary);
    font-size: 16px;
    min-width: 20px;
}

.volume-slider {
    flex: 1;
}

.slider {
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.2);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--btn-primary);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--btn-primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

#volumeDisplay {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 35px;
    text-align: right;
}

/* Ekvalizér */
.equalizer-container {
    position: relative;
    margin-top: var(--spacing-md);
}

.equalizer-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
}

.equalizer-toggle:hover {
    background: var(--btn-primary);
    border-color: var(--btn-primary);
}

.equalizer-toggle.active {
    background: var(--btn-primary);
    border-color: var(--btn-primary);
}

.equalizer-panel {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    max-width: 90vw;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--bg-element);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    z-index: 100;
}

.equalizer-panel.show {
    display: block;
}

.equalizer-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.equalizer-header h4 {
    margin: 0;
    margin-right: var(--spacing-md);
    color: var(--text-primary);
}

.eq-preset-btn {
    padding: 4px 12px;
    background: var(--bg-element-hover);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 12px;
}

.eq-preset-btn:hover {
    background: var(--btn-primary);
    color: white;
    border-color: var(--btn-primary);
}

.eq-preset-btn.active {
    background: var(--btn-primary);
    color: white;
    border-color: var(--btn-primary);
}

.equalizer-sliders {
    display: flex;
    gap: var(--spacing-md);
    justify-content: space-between;
}

.eq-band {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    flex: 1;
    min-width: 40px;
}

.eq-band label {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 600;
    text-align: center;
    margin: 0;
}

.eq-slider {
    writing-mode: bt-lr; /* IE */
    -webkit-appearance: slider-vertical; /* WebKit */
    appearance: slider-vertical;
    width: 20px;
    height: 120px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    border-radius: 10px;
}

.eq-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 10px;
    border-radius: 5px;
    background: var(--btn-primary);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.eq-slider::-moz-range-thumb {
    width: 20px;
    height: 10px;
    border-radius: 5px;
    background: var(--btn-primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.eq-value {
    font-size: 10px;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
    text-align: center;
    min-height: 14px;
}

.now-playing-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.now-playing-art {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--btn-primary), #ff6b35);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    box-shadow: 0 4px 12px rgba(219, 121, 52, 0.3);
}

.now-playing-details {
    flex: 1;
    min-width: 0;
}

.now-playing-title {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.now-playing-title span {
    color: var(--btn-primary);
    font-weight: 700;
}

.now-playing-album {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.now-playing-album span {
    color: var(--text-primary);
    font-weight: 500;
}

/* Časovač vypnutí */
.sleep-timer {
    position: relative;
    margin-top: var(--spacing-sm);
}

.timer-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: var(--bg-element-hover);
    color: var(--text-primary);
    font-size: 14px;
}

.timer-toggle.active {
    background-color: var(--btn-primary);
}

.timer-icon {
    display: inline-block;
    font-style: normal;
}

.timer-options {
    display: none;
    position: absolute;
    top: 40px;
    right: 0;
    width: 280px;
    padding: var(--spacing-md);
    background-color: var(--bg-element);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow);
    z-index: 100;
}

.timer-options.show {
    display: block;
}

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

.timer-header h4 {
    margin: 0;
    font-size: 16px;
}

.cancel-timer {
    padding: 5px 8px;
    background-color: var(--btn-danger);
    font-size: 12px;
}

.timer-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.timer-preset {
    flex: 1 1 calc(50% - 8px);
    padding: 8px 0;
    background-color: var(--bg-element-hover);
    font-size: 14px;
}

.timer-preset.active {
    background-color: var(--btn-primary);
}

.timer-display {
    padding: 8px;
    background-color: var(--bg-section);
    border-radius: var(--border-radius-sm);
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    color: var(--btn-primary);
}

/* Seznam aktuálně přehrávaných médií */
.current-playlist-container {
    border-top: 1px solid var(--bg-element-hover);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.current-playlist-header h3 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 18px;
}

.current-playlist {
    max-height: 300px;
    overflow-y: auto;
    padding-right: var(--spacing-xs);
}

/* Stylování scrollbaru */
.current-playlist::-webkit-scrollbar,
.album-tracks::-webkit-scrollbar {
    width: 6px;
}

.current-playlist::-webkit-scrollbar-track,
.album-tracks::-webkit-scrollbar-track {
    background: var(--bg-section);
}

.current-playlist::-webkit-scrollbar-thumb,
.album-tracks::-webkit-scrollbar-thumb {
    background-color: var(--bg-element-hover);
    border-radius: 3px;
}

.current-playlist::-webkit-scrollbar-thumb:hover,
.album-tracks::-webkit-scrollbar-thumb:hover {
    background-color: var(--bg-element-hover);
}

.queue-track,
.track-item,
.album-track {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    margin-bottom: var(--spacing-xs);
    background-color: var(--bg-element);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: background-color 0.2s;
}

.queue-track:hover,
.track-item:hover,
.album-track:hover {
    background-color: var(--bg-element-hover);
}

.queue-track.now-playing,
.track-item.active {
    background-color: var(--bg-element-active);
    border-left: 3px solid var(--btn-primary);
}

.queue-track-number,
.track-number {
    width: 30px;
    color: var(--text-secondary);
    font-weight: 600;
}

.queue-track-info,
.track-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.queue-track-name,
.track-name {
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.queue-track-album,
.album-name {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.queue-track-duration,
.track-duration {
    margin-left: var(--spacing-sm);
    color: var(--text-secondary);
    font-family: monospace;
    font-size: 14px;
}

/* Sekce playlistů a nahrávání */
#playlists-upload-section .column-container {
    display: flex;
    gap: var(--spacing-xl);
}

#playlists-upload-section .left-column {
    flex: 2;
}

#playlists-upload-section .right-column {
    flex: 1;
}

/* Styly pro playlisty */
#playlists,
#uploadForm {
    padding: var(--spacing-lg);
    background-color: var(--bg-section);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    height: 100%;
}

#createPlaylistForm,
#uploadAlbumForm {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

#createPlaylistForm {
    flex-direction: row;
}

#createPlaylistForm input {
    flex: 1;
}

/* Playlist list */
.playlist-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background-color: var(--bg-element);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--box-shadow-sm);
    transition: background-color 0.2s, transform 0.2s;
}

.playlist-item:hover {
    background-color: var(--bg-element-hover);
    transform: translateY(-2px);
}

.playlist-info {
    display: flex;
    flex-direction: column;
}

.playlist-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.playlist-stats {
    font-size: 14px;
    color: var(--text-secondary);
}

.playlist-actions {
    display: flex;
    gap: 8px;
}

.playlist-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
}

.back-btn {
    background-color: var(--btn-neutral);
}

.back-btn:hover {
    background-color: var(--btn-neutral-hover);
}

/* Upload progress */
#uploadProgress {
    padding: var(--spacing-md);
    background-color: var(--bg-element);
    border-radius: var(--border-radius-md);
}

#progressBar {
    height: 15px;
    border-radius: 7px;
    background-color: var(--bg-element);
}

#progressBar::-webkit-progress-bar {
    background-color: var(--bg-element);
    border-radius: 7px;
}

#progressBar::-webkit-progress-value {
    background-color: var(--btn-primary);
    border-radius: 7px;
}

#progressText {
    display: block;
    margin-top: 8px;
    text-align: center;
    font-weight: bold;
}

/* Styly pro alba v gridu */
#albums-section {
    width: 100%;
}

.albums-header {
    margin-bottom: var(--spacing-lg);
}

.albums-header h2 {
    margin-bottom: var(--spacing-md);
}

.albums-filters {
    margin-bottom: var(--spacing-md);
}

.filter-tags label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.tags-filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.filter-tag {
    padding: 6px 12px;
    background-color: var(--bg-element);
    color: var(--text-secondary);
    border: 1px solid var(--bg-element-hover);
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-tag:hover,
.filter-tag.active {
    background-color: var(--btn-primary);
    color: white;
    border-color: var(--btn-primary);
}

/* Styly pro výběr tagů při nahrávání */
.tags-selection {
    margin-bottom: var(--spacing-md);
}

.tags-selection label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background-color: var(--bg-element-hover);
    border-radius: var(--border-radius-md);
    max-height: 120px;
    overflow-y: auto;
}

.tag-checkbox {
    display: flex;
    align-items: center;
    padding: 4px 8px;
    background-color: var(--bg-element);
    border-radius: 16px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.tag-checkbox:hover {
    background-color: var(--bg-element-hover);
}

.tag-checkbox.selected {
    background-color: var(--btn-primary);
    color: white;
}

.tag-checkbox input[type="checkbox"] {
    margin-right: 6px;
    margin-bottom: 0;
}

/* Styly pro tagy v albu */
.album-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: var(--spacing-xs);
}

.album-tag {
    padding: 2px 6px;
    background-color: var(--btn-primary);
    color: white;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 500;
}

.no-tags {
    color: var(--text-secondary);
    font-style: italic;
    font-size: 12px;
}

/* Styly pro dialog úpravy tagů */
.edit-tags-dialog {
    padding: var(--spacing-lg);
    max-width: 500px;
}

.edit-tags-dialog h3 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.edit-tags-dialog h4 {
    margin: var(--spacing-md) 0 var(--spacing-xs) 0;
    color: var(--text-primary);
    font-size: 14px;
}

.current-tags {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm);
    background-color: var(--bg-element-hover);
    border-radius: var(--border-radius-md);
}

.dialog-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    justify-content: flex-end;
}

.dialog-buttons button {
    padding: 10px 16px;
    font-size: 14px;
}

#albums-section h2 {
    margin-bottom: var(--spacing-lg);
}

.albums-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.album {
    background-color: var(--bg-element);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--box-shadow-sm);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.album:hover,
.album:active {
    transform: translateY(-5px);
}

.album h2 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-size: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.album-cover-container {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-top: 100%; /* 1:1 Aspect Ratio */
    overflow: hidden;
}

.album img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
    transition: transform 0.3s ease;
}

.album:hover img,
.album:active img {
    transform: scale(1.05);
}

.album-no-cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
}

.album-info {
    margin-bottom: var(--spacing-md);
}

.album-duration,
.album-tracks-count {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.album-buttons,
.track-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.album-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.album-buttons button {
    width: 100%;
    padding: 8px;
    font-size: 12px;
}

.view-album-btn {
    background-color: var(--btn-neutral);
}

.view-album-btn:hover,
.view-album-btn:active {
    background-color: var(--btn-neutral-hover);
}

.edit-tags-btn {
    background-color: var(--btn-success);
}

.edit-tags-btn:hover,
.edit-tags-btn:active {
    background-color: var(--btn-success-hover);
}

.play-album-btn {
    background-color: var(--btn-primary);
}

.play-album-btn:hover {
    background-color: var(--btn-primary-hover);
}

.delete-album-btn,
.remove-from-playlist-btn {
    background-color: var(--btn-danger);
}

.delete-album-btn:hover,
.remove-from-playlist-btn:hover {
    background-color: var(--btn-danger-hover);
}

.album-tracks {
    background-color: var(--bg-section);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    max-height: 250px;
    overflow-y: auto;
}

/* Popup systém */
.popup-overlay,
#customPopupOverlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.popup-container {
    background-color: var(--bg-element);
    width: 90%;
    max-width: 400px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow);
    animation: popupFadeIn 0.3s ease;
}

@keyframes popupFadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.popup-header,
#customPopupOverlay .popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--bg-element-hover);
}

.popup-header h3,
#customPopupOverlay .popup-header h3 {
    margin: 0;
}

.popup-close,
#customPopupOverlay .custom-popup-close {
    font-size: 24px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    transition: color 0.2s;
}

.popup-close:hover,
#customPopupOverlay .custom-popup-close:hover {
    color: #ddd;
}

.popup-content,
#customPopupOverlay .popup-content {
    padding: var(--spacing-md);
    max-height: 300px;
    overflow-y: auto;
}

.popup-footer {
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: flex-end;
    border-top: 1px solid var(--bg-element-hover);
}

/* Dialog pro přidání do playlistu */
#playlist-dialog {
    padding: var(--spacing-lg);
}

#playlist-dialog h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

#playlist-select {
    width: 100%;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--bg-element-hover);
    border-radius: var(--border-radius-sm);
    font-size: 15px;
    color: var(--text-primary);
    background-color: var(--bg-element-hover);
}

.dialog-buttons {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

#add-to-playlist-confirm {
    background-color: var(--btn-primary);
}

#add-to-playlist-confirm:hover {
    background-color: var(--btn-primary-hover);
}

#add-to-playlist-cancel {
    background-color: var(--btn-danger);
}

#add-to-playlist-cancel:hover {
    background-color: var(--btn-danger-hover);
}

/* Responzivní úpravy */
@media (min-width: 992px) {
    .player-container {
        flex-direction: row;
    }
    
    .audio-player-container {
        flex: 0 0 60%;
    }
    
    .current-playlist-container {
        flex: 0 0 40%;
        border-top: none;
        border-left: 1px solid var(--bg-element-hover);
        padding-top: 0;
        margin-top: 0;
        padding-left: var(--spacing-md);
        margin-left: var(--spacing-sm);
    }
}

@media (max-width: 992px) {
    #playlists-upload-section .column-container {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
    
    .albums-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    #app {
        width: 95%;
    }
    
    .main-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .header-auth {
        width: 100%;
        justify-content: flex-end;
    }
    
    #search {
        flex-direction: column;
    }
    
    .albums-grid {
        grid-template-columns: 1fr;
    }
    
    .playlist-item,
    .track-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .playlist-actions {
        margin-top: var(--spacing-sm);
        width: 100%;
        justify-content: space-between;
    }
    
    .track-info {
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }
    
    .track-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

/* Toast notifikace */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1100;
    pointer-events: none;
}

.toast {
    background-color: var(--bg-element);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    margin-bottom: 8px;
    box-shadow: var(--box-shadow);
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
    pointer-events: auto;
    cursor: pointer;
    border-left: 4px solid var(--btn-primary);
    max-width: 300px;
    word-wrap: break-word;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast-success {
    border-left-color: var(--btn-success);
}

.toast-error {
    border-left-color: var(--btn-danger);
}

.toast-warning {
    border-left-color: #f39c12;
}

.toast-info {
    border-left-color: var(--btn-primary);
}

/* Mobilní navigace */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-section);
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
    z-index: 90;
    border-top: 1px solid var(--bg-element-hover);
    padding-bottom: env(safe-area-inset-bottom);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.nav-item.active {
    color: var(--btn-primary);
}

.nav-icon {
    font-size: 20px;
    margin-bottom: 5px;
}

.nav-label {
    font-size: 11px;
}

/* Úpravy pro zohlednění mobilní navigace */
body {
    padding-bottom: 60px;
}