:root {
    --primary-color: #ff9a9e;
    --secondary-color: #fad0c4;
    --text-color: #2c3e50;
    --bg-color: #fff1f2;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--bg-color) 0%, #fad0c4 100%);
    color: var(--text-color);
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Hero Section */
#hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
}

.title {
    font-family: var(--font-heading);
    font-size: 5rem;
    margin-bottom: 1rem;
    color: #d63384;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.highlight {
    background: -webkit-linear-gradient(45deg, #ff9a9e, #fecfef);
    -webkit-background-clip: text;
    font-style: italic;
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.8;
}

#celebrate-btn {
    padding: 1rem 2rem;
    font-size: 1.2rem;
    border: none;
    border-radius: 50px;
    background: white;
    color: #d63384;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-family: var(--font-body);
    font-weight: bold;
}

#celebrate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Secondary Button (Birthday Game) */
.btn-secondary {
    text-decoration: none;
    display: inline-block;
    margin-left: 10px;
    padding: 1rem 2rem;
    font-size: 1.2rem;
    border: none;
    border-radius: 50px;
    background: white;
    color: #d63384;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-family: var(--font-body);
    font-weight: bold;
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    animation: bounce 2s infinite;
    font-size: 2rem;
    opacity: 0.6;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

/* Section Titles */
.section-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #d63384;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.photo-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1rem;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    transition: transform 0.3s ease;
    height: 300px;
    /* Fixed height for placeholder */
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-card:hover {
    transform: scale(1.02);
}

.photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
}

.placeholder-img {
    width: 100%;
    height: 100%;
    background: #eee;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 1.2rem;
}

/* Message Section */
.message-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    padding: 4rem;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

.message-text {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #4a4a4a;
}

footer {
    text-align: center;
    padding: 2rem;
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .message-card {
        padding: 2rem;
    }
}