/* Nowoczesny, mroczny motyw gamingowy dla OptimumGame */
* {
    box-sizing: border-box;
}

body {
    background-color: #0b0c10;
    color: #c5c6c7;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 20px 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 650px;
    background: #1f2833;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.8);
    border: 1px solid #45a29e;
}

nav {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 25px;
    flex-wrap: wrap;
    background: #0b0c10;
    padding: 10px;
    border-radius: 10px;
    border: 1px solid #28313b;
}

nav a {
    color: #c5c6c7;
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    padding: 8px 14px;
    border-radius: 6px;
    transition: all 0.2s ease-in-out;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

nav a:hover {
    background: #45a29e;
    color: #0b0c10;
    box-shadow: 0 0 10px rgba(69, 162, 158, 0.6);
}

nav a.active {
    background: #66fcf1;
    color: #0b0c10;
    box-shadow: 0 0 12px rgba(102, 252, 241, 0.8);
}

h1 {
    color: #66fcf1;
    font-size: 26px;
    margin-top: 0;
    text-align: center;
    text-shadow: 0 0 8px rgba(102, 252, 241, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

h3 {
    color: #ffffff;
    font-size: 18px;
    margin-top: 25px;
    border-left: 4px solid #66fcf1;
    padding-left: 10px;
}

p, li {
    font-size: 14px;
    line-height: 1.6;
    color: #c5c6c7;
}

ul {
    padding-left: 20px;
}

.contact-box {
    background: #0b0c10;
    padding: 18px;
    border-radius: 10px;
    margin-top: 20px;
    text-align: center;
    color: #66fcf1;
    font-size: 16px;
    font-weight: bold;
    border: 1px dashed #45a29e;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}