/* AudiOhm - Neon Cyberpunk Theme */
:root {
    --bg-dark: #0A0E27;
    --bg-darker: #050814;
    --bg-card: rgba(15, 23, 50, 0.8);
    --primary: #00F0FF;
    --secondary: #BF00FF;
    --accent: #FF006E;
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0C0;
    --border: rgba(0, 240, 255, 0.2);
    --glow-primary: 0 0 20px rgba(0, 240, 255, 0.5);
    --glow-secondary: 0 0 20px rgba(191, 0, 255, 0.5);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(0, 240, 255, 0.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Screens */
.screen {
    width: 100%;
    height: 100vh;
}

.screen.hidden {
    display: none !important;
}

/* Login Screen */
.login-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.logo {
    font-size: 3rem;
    margin-bottom: 2rem;
    color: var(--primary);
    text-shadow: var(--glow-primary);
}

.login-form {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
    width: 100%;
    max-width: 400px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: var(--glow-primary);
}

.btn {
    width: 100%;
    padding: 0.8rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 5px;
    color: white;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

.register-link {
    margin-top: 1rem;
    text-align: center;
    color: var(--text-secondary);
}

.register-link a {
    color: var(--primary);
    text-decoration: none;
}

.register-link a:hover {
    text-decoration: underline;
}

.error-message {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(255, 0, 110, 0.2);
    border: 1px solid var(--accent);
    border-radius: 5px;
    color: var(--accent);
}

/* Main App */
#main-app {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: var(--bg-darker);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

.sidebar-header {
    margin-bottom: 2rem;
}

.sidebar-nav {
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 5px;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.nav-item:hover,
.nav-item.active {
    background: rgba(0, 240, 255, 0.1);
    color: var(--primary);
}

.nav-item i {
    margin-right: 1rem;
    width: 20px;
}

.sidebar-footer {
    margin-top: auto;
}

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    padding-bottom: 120px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-secondary);
}

/* Sections */
.section {
    margin-bottom: 3rem;
}

.section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

/* Search Bar */
.search-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.search-bar input {
    flex: 1;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--text-primary);
    font-size: 1rem;
}

.search-bar button {
    width: auto;
    padding: 0 2rem;
}

/* Track List */
.track-list {
    display: grid;
    gap: 1rem;
}

.track-card {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.track-card:hover {
    border-color: var(--primary);
    box-shadow: var(--glow-primary);
    transform: translateY(-2px);
}

.track-cover {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 5px;
    margin-right: 1rem;
}

.track-info {
    flex: 1;
}

.track-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.3rem;
}

.track-artist {
    color: var(--text-secondary);
}

.track-duration {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.track-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-play-track {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    font-size: 0.9rem;
}

/* Playlist List */
.playlist-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.playlist-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.playlist-card:hover {
    border-color: var(--primary);
    box-shadow: var(--glow-primary);
    transform: translateY(-5px);
}

.playlist-cover {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.playlist-name {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 0.3rem;
}

.playlist-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Player */
.player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-darker);
    border-top: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    z-index: 1000;
}

/* Hide player on login screen */
#login-screen .player,
body:not(:has(#main-app.visible)) .player {
    display: none !important;
}

#main-app.visible .player {
    display: flex !important;
}

.player-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 250px;
}

.player-cover {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 5px;
}

.player-details {
    flex: 1;
}

.player-title {
    font-size: 1rem;
    font-weight: bold;
    margin-bottom: 0.2rem;
}

.player-artist {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    justify-content: center;
}

.btn-control {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-control:hover {
    color: var(--primary);
}

.btn-play {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-play:hover {
    transform: scale(1.1);
    box-shadow: var(--glow-primary);
}

.player-progress {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 500px;
}

.progress-bar,
.volume-bar {
    flex: 1;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 2px;
    cursor: pointer;
}

.progress-bar::-webkit-slider-thumb,
.volume-bar::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
}

.time {
    font-size: 0.8rem;
    color: var(--text-secondary);
    min-width: 40px;
}

.player-volume {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 150px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -250px;
        z-index: 1001;
        transition: left 0.3s ease;
    }

    .sidebar.open {
        left: 0;
    }

    .main-content {
        padding: 1rem;
    }

    .player {
        flex-wrap: wrap;
        padding: 1rem;
    }

    .player-info {
        min-width: auto;
        flex: 1;
    }

    .player-controls {
        order: 3;
        width: 100%;
    }

    .player-progress {
        max-width: none;
    }
}