/* Header Styles - Стили шапки сайта */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.2rem 0;
    box-shadow: var(--shadow-sm);
    animation: slideDown var(--transition-slow);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-black);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--color-yellow);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--color-black);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-yellow);
    transition: width var(--transition-fast);
}

.nav-links a:hover::after {
    width: 100%;
}

.cta-button {
    background: var(--color-yellow);
    color: var(--color-black);
    padding: 0.9rem 2rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-yellow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 221, 45, 0.5);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-black);
}