/* Общие стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: inherit;
}

.btn {
    display: inline-block;
    padding: 12px 25px;
    background: #0056b3; /* Синий цвет, ассоциирующийся с надежностью */
    color: white;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #003d82;
}

.btn-primary { background: #0056b3; }
.btn-primary:hover { background: #003d82; }

.btn-secondary {
    background: transparent;
    border: 2px solid #0056b3;
    color: #0056b3;
}
.btn-secondary:hover {
    background: #0056b3;
    color: white;
}

.center {
    text-align: center;
    margin-top: 30px;
}

/* Шапка */
header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #0056b3;
}

nav {
    display: flex;
    gap: 25px;
}

nav a {
    font-weight: 500;
}

nav a:hover {
    color: #0056b3;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Главный экран */
.hero {
    background: linear-gradient(135deg, #0056b3 0%, #003d82 100%);
    color: white;
    padding: 160px 0 100px 0; /* Учли высоту фиксированного хедера */
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Секции */
section {
    padding: 80px 0;
}

h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2rem;
}

/* Преимущества */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.advantage-item {
    text-align: center;
    padding: 20px;
}

.advantage-item h3 {
    margin-bottom: 15px;
    color: #0056b3;
}

/* Услуги */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-item {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
}

.service-item h3 {
    margin-bottom: 15px;
    color: #0056b3;
}

.service-item a {
    color: #0056b3;
    font-weight: bold;
    display: inline-block;
    margin-top: 10px;
}

/* Футер */
footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 30px 0;
}

footer a {
    color: #fff;
    text-decoration: underline;
}

/* Адаптивность для мобильных */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        padding: 20px;
    }

    nav.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
}