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

:root {
    --ironman-red: #c62828;
    --ironman-gold: #ffc107;
    --dark-metal: #263238;
    --light-metal: #607d8b;
    --reactor-blue: #4fc3f7;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #eee;
    background-color: var(--dark-metal);
    background-image: linear-gradient(45deg, #1a1a1a 25%, #222 25%, #222 50%, #1a1a1a 50%, #1a1a1a 75%, #222 75%, #222 100%);
    background-size: 10px 10px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.arc-reactor {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, var(--reactor-blue) 0%, #0288d1 60%, #01579b 100%);
    border-radius: 50%;
    position: absolute;
    top: 20px;
    right: 20px;
    box-shadow: 0 0 15px 5px #4fc3f7, 0 0 30px 10px rgba(79, 195, 247, 0.5);
    z-index: 100;
}

h1,
h2 {
    color: var(--ironman-gold);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

h1 {
    text-align: center;
    padding: 20px 0;
    border-bottom: 2px solid var(--ironman-red);
    text-shadow: 0 0 10px rgba(255, 193, 7, 0.5);
}

p {
    margin-bottom: 15px;
}

a {
    color: var(--ironman-gold);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--ironman-red);
    text-decoration: none;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(38, 50, 56, 0.9);
    padding: 15px;
    border-radius: 5px;
    margin: 20px 0;
    box-shadow: 0 0 10px rgba(198, 40, 40, 0.5), inset 0 0 20px rgba(255, 193, 7, 0.2);
    border: 1px solid var(--ironman-red);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-right: 20px;
}

nav ul li a {
    font-weight: bold;
    padding: 8px 15px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

nav ul li a:hover {
    background-color: var(--ironman-red);
    color: #fff;
    box-shadow: 0 0 10px rgba(198, 40, 40, 0.7);
}

nav img {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    border: 3px solid var(--ironman-gold);
    box-shadow: 0 0 15px rgba(255, 193, 7, 0.7);
    transition: transform 0.3s ease;
}

nav img:hover {
    transform: scale(1.1);
}

section {
    background-color: rgba(38, 50, 56, 0.8);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(198, 40, 40, 0.5), inset 0 0 20px rgba(255, 193, 7, 0.2);
    border: 1px solid var(--ironman-red);
    position: relative;
    overflow: hidden;
}

section::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, transparent 70%, var(--ironman-red) 70%);
}

ul {
    list-style-position: inside;
    margin-left: 20px;
    margin-bottom: 15px;
}

ul li {
    padding: 5px 0;
    border-bottom: 1px dotted var(--light-metal);
}

ul li strong {
    color: var(--ironman-gold);
}

footer {
    text-align: center;
    padding: 20px;
    background-color: rgba(38, 50, 56, 0.8);
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(198, 40, 40, 0.5), inset 0 0 20px rgba(255, 193, 7, 0.2);
    border: 1px solid var(--ironman-red);
    position: relative;
    margin-top: 40px;
}

.site-navigation {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.nav-button {
    display: inline-block;
    padding: 10px 20px;
    margin: 0 10px;
    background-color: var(--ironman-red);
    color: white;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
}

.nav-button:hover {
    background-color: var(--dark-metal);
    color: var(--ironman-gold);
    box-shadow: 0 0 10px rgba(198, 40, 40, 0.8);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 15px 5px #4fc3f7, 0 0 30px 10px rgba(79, 195, 247, 0.5);
    }
    50% {
        box-shadow: 0 0 20px 8px #4fc3f7, 0 0 40px 15px rgba(79, 195, 247, 0.7);
    }
    100% {
        box-shadow: 0 0 15px 5px #4fc3f7, 0 0 30px 10px rgba(79, 195, 247, 0.5);
    }
}

.arc-reactor {
    animation: pulse 2s infinite;
}