body {
    background: #0a120f;
    color: #dbeee9;
    font-family: "Verdana", sans-serif;
    margin: 0;
    padding-top: 60px;
    text-align: center;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #1f4339;
    border-bottom: 2px solid #87c7b6;
    padding: 10px 0;
}

.navbar a {
    color: #dbeee9;
    text-decoration: none;
    font-weight: bold;
    margin: 0 12px;
    transition: 0.15s;
}

.navbar a:hover {
    color: #ffffff;
    text-shadow: 0 0 6px #87c7b6;
}

.container {
    width: 800px;
    margin: 0 auto;
    background: #142721;
    border: 2px solid #367463;
    padding: 20px;
    box-shadow: 0 0 12px rgba(54, 116, 99, 0.25);
}

.header {
    background: #244e42;
    padding: 10px;
    border: 1px solid #87c7b6;
    font-weight: bold;
    letter-spacing: 1px;
}

.section {
    margin-top: 20px;
    padding: 15px;
    border: 1px solid #367463;
    background: #11201b;
}

.button {
    display: inline-block;
    background: #2e6254;
    color: #f7fbfa;
    padding: 6px 12px;
    margin: 5px;
    border: 1px solid #87c7b6;
    cursor: pointer;
    font-weight: bold;
    transition: 0.15s;
}

.button:hover {
    background: #43907b;
    box-shadow: 0 0 8px #87c7b6;
}

.counter {
    border: 1px solid #367463;
    display: inline-block;
    padding: 5px;
    margin-top: 10px;
    font-family: monospace;
    background-color: #0d1915;
    color: #a3d4c7;
}

marquee {
    font-weight: bold;
    color: #87c7b6;
}

.snowflake {
    position: fixed;
    top: -10px;
    color: #ffffff;
    font-size: 1em;
    z-index: 9999;
    pointer-events: none;
    animation: fall linear infinite;
    opacity: 0.9;
    text-shadow: 0 0 6px #ffffff;
}

@keyframes fall {
    from { transform: translateY(0); }
    to { transform: translateY(100vh); }
}