/* Общие стили */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background-color: #0a1128; /* тёмно-синий фон */
    color: #ffffff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
}

/* Шапка */
.header {
    background-color: #000000;
    padding: 15px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.5);
    width: 100%;
    display: flex;
    justify-content: center;
}

.header-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
}

.logo-image {
    height: 60px;
    width: auto;
    filter: drop-shadow(0 0 5px #00a0ff) 
            drop-shadow(0 0 10px #00a0ff) 
            drop-shadow(0 0 15px #00a0ff);
    animation: neonPulse 2s ease-in-out infinite;
}

@keyframes neonPulse {
    0% {
        filter: drop-shadow(0 0 5px #00a0ff) 
                drop-shadow(0 0 10px #00a0ff) 
                drop-shadow(0 0 15px #00a0ff);
    }
    50% {
        filter: drop-shadow(0 0 8px #00a0ff) 
                drop-shadow(0 0 15px #00a0ff) 
                drop-shadow(0 0 25px #00a0ff);
    }
    100% {
        filter: drop-shadow(0 0 5px #00a0ff) 
                drop-shadow(0 0 10px #00a0ff) 
                drop-shadow(0 0 15px #00a0ff);
    }
}

/* Навигация */
.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav a {
    color: #00a0ff;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    padding: 5px 10px;
}

.nav a:hover {
    color: #fff;
    text-shadow: 0 0 10px #00a0ff, 0 0 20px #00a0ff;
}

/* Основной блок */
.main-content {
    max-width: 900px;
    margin: 50px auto;
    padding: 20px;
    text-align: center;
}

.main-content h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 0 0 10px #00a0ff, 0 0 20px #00a0ff;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 10px #00a0ff, 0 0 20px #00a0ff;
    }
    to {
        text-shadow: 0 0 20px #00a0ff, 0 0 30px #00a0ff, 0 0 40px #00a0ff;
    }
}

.main-content p {
    font-size: 1.2em;
    line-height: 1.6;
}

/* Кнопка */
.btn {
    display: inline-block;
    padding: 12px 25px;
    background-color: #0720ff;
    color: #000;
    font-weight: bold;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.btn:hover {
    background-color: #a2bddf;
    box-shadow: 0 0 15px #3c33dc, 0 0 30px #0b07ff;
}

/* Блок ссылок */
.links-block {
    text-align: center;
    padding: 20px 0;
    margin-bottom: 15px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.links-block a {
    display: inline-block;
    color: #00a0ff;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 5px 10px;
}

.links-block a:hover {
    color: #fff;
    text-shadow: 0 0 10px #00a0ff, 0 0 20px #00a0ff;
}

/* Подвал */
.footer {
    background-color: #000000;
    text-align: center;
    padding: 20px 15px;
    font-size: 0.9em;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: auto;
    width: 100%;
}

.copyright {
    margin: 0;
    opacity: 0.7;
}