:root {
    --primary-pink: #ff69b4;
    --secondary-pink: #ff1493;
    --background-start: #ffe6f2;
    --background-end: #ff9ecd;
}

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

body {
    font-family: 'Arial', sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--background-start), var(--background-end));
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.music-controls {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

#toggleMusic {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
    transition: transform 0.3s ease;
}

#toggleMusic:hover {
    transform: scale(1.1);
}

.container {
    position: relative;
    z-index: 1;
}

.card {
    background: rgba(255, 255, 255, 0.9);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 500px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transform-style: preserve-3d;
    transform: perspective(1000px);
    transition: transform 0.5s ease;
}

.card:hover {
    transform: perspective(1000px) rotateX(5deg) rotateY(5deg);
}

.title-glow {
    color: var(--secondary-pink);
    text-shadow: 0 0 10px var(--primary-pink);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px var(--primary-pink);
    }
    to {
        text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px var(--secondary-pink);
    }
}

.message {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    color: #666;
}

.proposal {
    color: var(--secondary-pink);
    font-size: 2rem;
    margin-bottom: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 2rem;
}

.btn {
    padding: 15px 40px;
    font-size: 1.2rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
    text-transform: uppercase;
}

.yes-btn {
    background: linear-gradient(45deg, var(--primary-pink), var(--secondary-pink));
    color: white;
    box-shadow: 0 5px 15px rgba(255, 105, 180, 0.4);
}

.yes-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 7px 20px rgba(255, 105, 180, 0.6);
}

.no-btn {
    background: white;
    color: var(--secondary-pink);
    border: 2px solid var(--primary-pink);
}

.no-btn:hover {
    background: rgba(255, 105, 180, 0.1);
}

.floating-hearts {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.heart {
    position: fixed;
    font-size: 20px;
    animation: float linear infinite;
    opacity: 0.7;
}

@keyframes float {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) scale(1);
        opacity: 0;
    }
}

.sparkles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.sparkles::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 10 10"><circle cx="5" cy="5" r="1" fill="%23FFD700"/></svg>') repeat;
    animation: sparkle 2s linear infinite;
    opacity: 0.5;
}

@keyframes sparkle {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100%); }
}

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

.hidden {
    display: none;
}

/* Responsive Design */
@media (max-width: 600px) {
    .card {
        margin: 1rem;
        padding: 1.5rem;
    }

    .title-glow {
        font-size: 2rem;
    }

    .message {
        font-size: 1rem;
    }

    .proposal {
        font-size: 1.5rem;
    }

    .buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        margin: 0.5rem 0;
    }
}