/* Основные стили навигации */
.main-navigation {
    width: 100%;
    height: 100%;
}

.nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    margin-top: -50px; /* Корректировка позиции */
}

.nav-menu li {
    margin-bottom: 3px;
}

.nav-link {
    display: block;
    width: 156px;
    height: 25px;
    line-height: 25px;
    text-align: center;
    color: #FFFFFF;
    text-decoration: none;
    font-family: Arial, sans-serif;
    font-size: 12px;
    font-weight: bold;
    background: linear-gradient(to bottom, #4289AE 0%, #2E6B8F 100%);
    border: 1px solid #1A4A63;
    border-radius: 3px;
    margin-left: 7px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.nav-link:hover {
    background: linear-gradient(to bottom, #5A9BBE 0%, #3E7B9F 100%);
    color: #E8F4F8;
    box-shadow: 0 3px 6px rgba(0,0,0,0.3);
    transform: translateY(-1px);
}

.nav-link.active {
    background: linear-gradient(to bottom, #2E6B8F 0%, #1A4A63 100%);
    color: #FFFFFF;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
}

/* Дополнительные стили для адаптивности */
@media (max-width: 768px) {
    .main-navigation {
        padding: 10px 5px;
    }
    
    .nav-link {
        width: 140px;
        font-size: 11px;
        margin-left: 12px;
    }
}

/* Анимация при загрузке страницы */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-menu li {
    animation: fadeInUp 0.5s ease forwards;
}

.nav-menu li:nth-child(1) { animation-delay: 0.1s; }
.nav-menu li:nth-child(2) { animation-delay: 0.2s; }
.nav-menu li:nth-child(3) { animation-delay: 0.3s; }
.nav-menu li:nth-child(4) { animation-delay: 0.4s; }
.nav-menu li:nth-child(5) { animation-delay: 0.5s; }

/* Состояние фокуса для доступности */
.nav-link:focus {
    outline: 2px solid #FFFFFF;
    outline-offset: 2px;
}