body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #fffaf4;
    color: #333;
    transition: background 0.3s, color 0.3s;
}

/* 🌙 Dark Mode Colors */
body.dark {
    background: #1a1a1a;
    color: #f5f5f5;
}

header {
    text-align: center;
    padding: 40px 20px;
    background: #ffddb0;
}

body.dark header {
    background: #333;
}

.mode-toggle {
    margin-top: 15px;
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    background: #ffd39f;
    cursor: pointer;
}

body.dark .mode-toggle {
    background: #555;
    color: #fff;
}

.gallery {
    padding: 40px 20px;
    max-width: 900px;
    margin: auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.cat-card {
    background: white;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    text-align: center;
}

body.dark .cat-card {
    background: #2a2a2a;
    box-shadow: 0 2px 6px rgba(255,255,255,0.1);
}

.cat-card img {
    width: 100%;
    border-radius: 10px;
}

.vote-buttons {
    margin-top: 12px;
    display: flex;
    justify-content: space-around;
}

.vote-buttons button {
    background: #ffb98a;
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.2s;
}

.vote-buttons button:hover {
    background: #ff9c5c;
    transform: scale(1.05);
}

body.dark .vote-buttons button {
    background: #925b38;
}

/* ❤️ Floating hearts */
#heart-container {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    width: 100%;
    height: 100%;
}

.heart {
    position: absolute;
    font-size: 24px;
    animation: floatUp 1.2s ease-out forwards;
    opacity: 0;
}

.gallery, .fun-facts {
    padding: 40px 20px;
    max-width: 900px;
    margin: auto;
}

.gallery h2, .fun-facts h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

@keyframes floatUp {
    0% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translateY(-80px) scale(1.8);
        opacity: 0;
    }
}

footer {
    text-align: center;
    padding: 20px;
    background: #ffe4c4;
    margin-top: 30px;
}

body.dark footer {
    background: #333;
}