/* ===== CSS Variables & Reset ===== */
:root {
    /* Color Palette */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --accent: #f59e0b;
    --success: #10b981;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

    /* Dark Theme Colors */
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --bg-card-hover: #1e2a47;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #718096;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.4);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===== Background Animation ===== */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.wave {
    position: absolute;
    width: 200%;
    height: 200%;
    background: var(--gradient-primary);
    opacity: 0.1;
    border-radius: 45%;
    animation: wave-animation 20s infinite linear;
}

.wave1 {
    animation-duration: 25s;
    animation-delay: 0s;
}

.wave2 {
    background: var(--gradient-secondary);
    animation-duration: 30s;
    animation-delay: -5s;
}

.wave3 {
    background: var(--gradient-accent);
    animation-duration: 35s;
    animation-delay: -10s;
}

@keyframes wave-animation {
    0% {
        transform: translate(-50%, -75%) rotate(0deg);
    }

    100% {
        transform: translate(-50%, -75%) rotate(360deg);
    }
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

/* ===== Header ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: rgba(22, 33, 62, 0.6);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
}

.logo-pulse {
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
    box-shadow: 0 0 20px var(--primary);
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.5);
        opacity: 0.5;
    }
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(236, 72, 153, 0.2);
    border: 1px solid var(--secondary);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    animation: glow 2s infinite;
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(236, 72, 153, 0.5);
    }

    50% {
        box-shadow: 0 0 20px rgba(236, 72, 153, 0.8);
    }
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--secondary);
    border-radius: 50%;
    animation: blink 1.5s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

/* ===== Main Content ===== */
.main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* ===== Player Card ===== */
.player-card {
    background: rgba(22, 33, 62, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.player-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ===== Album Art / Visualizer ===== */
.album-art {
    width: 100%;
    max-width: 400px;
    height: 400px;
    margin: 0 auto var(--spacing-lg);
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.visualizer {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 8px;
    height: 100px;
}

.bar {
    width: 8px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 4px;
    animation: visualizer 1s ease-in-out infinite;
}

.bar:nth-child(1) {
    animation-delay: 0s;
    height: 20px;
}

.bar:nth-child(2) {
    animation-delay: 0.1s;
    height: 40px;
}

.bar:nth-child(3) {
    animation-delay: 0.2s;
    height: 60px;
}

.bar:nth-child(4) {
    animation-delay: 0.3s;
    height: 80px;
}

.bar:nth-child(5) {
    animation-delay: 0.4s;
    height: 60px;
}

.bar:nth-child(6) {
    animation-delay: 0.5s;
    height: 40px;
}

.bar:nth-child(7) {
    animation-delay: 0.6s;
    height: 60px;
}

.bar:nth-child(8) {
    animation-delay: 0.7s;
    height: 30px;
}

@keyframes visualizer {

    0%,
    100% {
        transform: scaleY(1);
    }

    50% {
        transform: scaleY(1.5);
    }
}

.visualizer.paused .bar {
    animation: none;
    height: 20px !important;
}

/* ===== Now Playing ===== */
.now-playing {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.song-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.artist-name {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* ===== Player Controls ===== */
.player-controls {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.play-button {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.play-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(99, 102, 241, 0.6);
}

.play-button:active {
    transform: scale(0.95);
}

.play-icon,
.pause-icon {
    width: 32px;
    height: 32px;
    color: white;
}

.hidden {
    display: none;
}

/* ===== Volume Control ===== */
.volume-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: 0 auto;
}

.volume-icon {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
}

.volume-slider {
    flex: 1;
    height: 6px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.volume-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
    transition: transform var(--transition-fast);
}

.volume-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
}

.volume-value {
    min-width: 50px;
    text-align: right;
    color: var(--text-secondary);
    font-weight: 600;
}

/* ===== Stats Section ===== */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    background: rgba(22, 33, 62, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: transform var(--transition-normal), border-color var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
}

.stat-card:hover::before {
    opacity: 0.1;
}

.listeners-card {
    grid-column: 1 / -1;
}

.listeners-card::before {
    background: var(--gradient-secondary);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.listeners-card .stat-icon {
    background: var(--gradient-secondary);
}

.stat-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.stat-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.875rem;
    color: var(--success);
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.trend-icon {
    font-size: 1.25rem;
}

/* ===== Share Section ===== */
.share-section {
    background: rgba(22, 33, 62, 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.share-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.share-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    color: white;
}

.share-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.share-button:active {
    transform: translateY(0);
}

.share-button svg {
    width: 20px;
    height: 20px;
}

.facebook {
    background: linear-gradient(135deg, #1877f2 0%, #0d5dbf 100%);
}

.twitter {
    background: linear-gradient(135deg, #1da1f2 0%, #0c85d0 100%);
}

.whatsapp {
    background: linear-gradient(135deg, #25d366 0%, #1ebe57 100%);
}

.copy {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* ===== Footer ===== */
.footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links {
    margin-top: var(--spacing-sm);
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }

    .header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .logo {
        font-size: 1.5rem;
    }

    .album-art {
        max-width: 300px;
        height: 300px;
    }

    .song-title {
        font-size: 1.5rem;
    }

    .artist-name {
        font-size: 1rem;
    }

    .stats-section {
        grid-template-columns: 1fr;
    }

    .share-buttons {
        grid-template-columns: 1fr;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .player-card {
        padding: var(--spacing-md);
    }

    .album-art {
        max-width: 250px;
        height: 250px;
    }

    .play-button {
        width: 60px;
        height: 60px;
    }

    .play-icon,
    .pause-icon {
        width: 24px;
        height: 24px;
    }
}