/* Music Streaming Platform - Mobile Optimized CSS */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --dark-border: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --player-height: 90px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
.main-header {
    background: var(--dark-card);
    border-bottom: 1px solid var(--dark-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-box {
    position: relative;
}

.search-box input {
    background: var(--dark-bg);
    border: 1px solid var(--dark-border);
    padding: 0.5rem 2.5rem 0.5rem 1rem;
    border-radius: 50px;
    color: var(--text-primary);
    width: 250px;
    transition: width 0.3s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    width: 300px;
}

.search-box button {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--dark-bg);
    border: 1px solid var(--dark-border);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s;
}

.user-menu-toggle:hover {
    border-color: var(--primary-color);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 0.5rem;
    min-width: 200px;
    display: none;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.user-menu:hover .user-dropdown {
    display: block;
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
}

.user-dropdown a:hover {
    background: var(--dark-bg);
    color: var(--text-primary);
}

.user-dropdown hr {
    border: none;
    border-top: 1px solid var(--dark-border);
    margin: 0.5rem 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: #4f46e5;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-lg {
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    font-size: 1.2rem;
    transition: color 0.3s;
}

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

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding-bottom: var(--player-height);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 6rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section-gray {
    background: rgba(255, 255, 255, 0.02);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
}

.view-all {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Music Grid */
.music-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
}

.music-card {
    background: var(--dark-card);
    border-radius: 0.5rem;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.music-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.music-cover {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
}

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

.cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-bg);
    font-size: 3rem;
    color: var(--text-secondary);
}

.music-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.music-card:hover .music-overlay {
    opacity: 1;
}

.play-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: transform 0.3s;
}

.play-btn:hover {
    transform: scale(1.1);
}

.music-info {
    padding: 1rem;
}

.music-title {
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.music-title a {
    color: var(--text-primary);
    text-decoration: none;
}

.music-title a:hover {
    color: var(--primary-color);
}

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

.music-artist a {
    color: var(--text-secondary);
    text-decoration: none;
}

.music-artist a:hover {
    color: var(--text-primary);
}

/* Music List */
.music-list {
    background: var(--dark-card);
    border-radius: 0.5rem;
    overflow: hidden;
}

.music-list-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--dark-border);
    transition: background 0.3s;
}

.music-list-item:hover {
    background: var(--dark-bg);
}

.item-number {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-secondary);
    min-width: 30px;
}

.item-cover {
    width: 50px;
    height: 50px;
    border-radius: 0.25rem;
    overflow: hidden;
}

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

.cover-placeholder-sm {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-bg);
    color: var(--text-secondary);
}

.item-info {
    flex: 1;
}

.item-info h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.item-info h4 a {
    color: var(--text-primary);
    text-decoration: none;
}

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

.item-info p a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

.item-duration {
    color: var(--text-secondary);
    font-size: 0.9rem;
    min-width: 50px;
}

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

/* Music Player */
.music-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark-card);
    border-top: 1px solid var(--dark-border);
    z-index: 200;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
}

.player-progress {
    height: 4px;
    background: var(--dark-bg);
    cursor: pointer;
}

.progress-bar {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--dark-bg);
    outline: none;
    cursor: pointer;
}

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

.progress-bar::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.player-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    gap: 2rem;
}

.player-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    min-width: 0;
}

.player-cover {
    width: 60px;
    height: 60px;
    border-radius: 0.25rem;
    overflow: hidden;
    flex-shrink: 0;
}

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

.player-details {
    min-width: 0;
}

.player-details h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-details p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.control-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.3s, transform 0.3s;
    padding: 0.5rem;
}

.control-btn:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

.play-pause-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-pause-btn:hover {
    background: #4f46e5;
}

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

.player-time {
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
}

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

.volume-bar {
    width: 100px;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: var(--dark-bg);
    border-radius: 2px;
    outline: none;
}

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

.volume-bar::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Footer */
.main-footer {
    background: var(--dark-card);
    border-top: 1px solid var(--dark-border);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-section p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--dark-border);
    color: var(--text-secondary);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.badge-premium {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: white;
}

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

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

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 4rem 0;
    text-align: center;
    margin-top: 4rem;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: var(--dark-card);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        transition: left 0.3s;
        border-right: 1px solid var(--dark-border);
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 0.75rem;
        border-radius: 0.5rem;
    }

    .nav-links a:hover {
        background: var(--dark-bg);
    }

    .nav-actions {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
    }

    .search-box {
        width: 100%;
    }

    .search-box input {
        width: 100%;
    }

    .search-box input:focus {
        width: 100%;
    }

    .user-menu-toggle,
    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .music-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 1rem;
    }

    .player-content {
        padding: 0.75rem 1rem;
        gap: 1rem;
    }

    .player-controls {
        flex: 0.5;
    }

    .player-right {
        flex: 0.5;
    }

    .player-volume,
    .player-time {
        display: none;
    }

    .item-stats,
    .item-duration {
        display: none;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .music-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .player-info {
        flex: 0.8;
    }

    .player-cover {
        width: 45px;
        height: 45px;
    }

    .player-details h4 {
        font-size: 0.9rem;
    }

    .player-details p {
        font-size: 0.8rem;
    }

    .control-btn {
        font-size: 1rem;
    }

    .play-pause-btn {
        width: 40px;
        height: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}