body {
    font-family: 'Poppins', sans-serif;
    background-color: #fff;
    color: #333;
    margin: 0;
    padding: 0;
    text-align: center;
}

header {
    background-color: #fce4ec; /* Pastel Pink */
    padding: 20px;
    border-bottom: 2px solid #f8bbd0;
}

h1, h2 {
    font-family: 'Playfair Display', serif;
    color: #c2185b; /* Deeper Pink for contrast */
}

#photo-carousel {
    overflow: hidden;
    white-space: nowrap;
    padding: 20px 0;
    background-color: #f1f1f1;
    border-bottom: 2px solid #ddd;
}

.photo-strip {
    display: inline-block;
    animation: scroll 40s linear infinite;
}

.photo-strip img {
    height: 200px;
    margin: 0 10px;
    border: 5px solid white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    border-radius: 5px;
}

@keyframes scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

main {
    padding: 20px;
}

section {
    margin-bottom: 40px;
}

#relationship-timer #timer {
    font-size: 1.2em;
    background-color: #fce4ec;
    padding: 20px;
    border-radius: 10px;
    display: inline-block;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.letter-box {
    background-color: #fff9c4;
    border-left: 5px solid #fdd835;
    padding: 20px;
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
    border-radius: 5px;
}

#love-button {
    background-color: #ff80ab; /* Bright Pink */
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

#love-button:hover {
    background-color: #f50057; /* Darker Pink on hover */
    transform: scale(1.05);
}

#love-button:active {
    transform: scale(0.95);
}

/* Responsive Design */
@media (max-width: 768px) {
    .photo-strip img {
        height: 150px;
    }

    h1 {
        font-size: 1.8em;
    }

    h2 {
        font-size: 1.5em;
    }
}