* {
    box-sizing: border-box;
}

body {
    background-color: #252525;
    scroll-behavior: smooth;
    margin: 0;
    font-family: Arial;
    padding: 0;
    color: #f0f0f0;
}

a {
    color: #f0f0f0;
    text-decoration: none;
}

nav {
    background: #222;
    padding: 15px 10px;
}

nav a {
    margin: 0 20px;
    font-weight: 600;
    font-size: 18px;
}

nav a.active,
nav a:hover {
    opacity: 1;
    color: #660000;
    border-bottom: 2px solid #660000;
}

header {
    text-align: center;
    padding: 50px 20px 30px;
    background-color: #220000;
}

header h1 {
    font-size: 3.5vw;
    margin-bottom: 10px;
    text-shadow: 2px 2px 6px #660000;
}

header p {
    font-style: italic;
}

.themes-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    max-width: 1200px;
    margin: 40px auto 60px;
    padding: 0 15px;
}

.theme-box {
    flex: 1 1 300px;
    border-radius: 15px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.7);
    overflow: hidden;
    background-color: #222;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.theme-box:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px #000000c3;
}

.theme-box h2 {
    padding: 20px;
    font-size: 2vw;
    text-align: center;
    font-weight: 700;
    text-shadow: 1px 1px 4px #000;
    letter-spacing: 2px;
}

.theme-content {
    padding: 0 20px 25px;
    text-align: center;
}

.pasmofobia {
    background-color: #0a0a0a;
}

.resident-evil {
    background-color: #315867;
}

.pokemon {
    background-color: #a30000;
}

.theme-box img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 0 auto 15px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

footer {
    background-color: #222;
    color: #b6b6b6;
    text-align: center;
    font-size: 0.9vw;
}