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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(180deg, #0a1628 0%, #1a2744 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    transition: background 0.8s ease;
}

.container {
    width: 100%;
    max-width: 400px;
    text-align: center;
}

h1 {
    font-size: 2.5em;
    color: #ffffff;
    letter-spacing: 0.3em;
    font-weight: 300;
    margin-bottom: 80px;
    text-transform: uppercase;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.screen {
    display: none;
}

.screen.active {
    display: block;
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.play-button {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 3px solid rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.play-button:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.play-button:active:not(:disabled) {
    transform: scale(0.98);
}

.play-button:disabled {
    cursor: not-allowed;
    opacity: 0.9;
}

.play-icon {
    width: 50px;
    height: 50px;
    color: #ffffff;
    margin-left: 5px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.play-button.playing .play-icon {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

.status {
    margin-top: 40px;
    font-size: 0.85em;
    color: rgba(255, 255, 255, 0.8);
    min-height: 20px;
    letter-spacing: 0.1em;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Responsive */
@media (max-width: 600px) {
    h1 {
        font-size: 2em;
        margin-bottom: 60px;
    }
    
    .play-button {
        width: 100px;
        height: 100px;
    }
    
    .play-icon {
        width: 40px;
        height: 40px;
    }
}