/* Стили навигации админ-панели */

.admin-nav {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: linear-gradient(135deg, rgba(26, 37, 47, 0.95), rgba(20, 30, 40, 0.9));
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(52, 152, 219, 0.3);
    box-shadow: 
        8px 0 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(52, 152, 219, 0.1),
        inset -1px 0 0 rgba(255, 255, 255, 0.1);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Заголовок навигации */
.nav-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid rgba(52, 152, 219, 0.25);
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.08), rgba(46, 204, 113, 0.05));
    position: relative;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.nav-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #3498db, #2ecc71, #e74c3c, #f39c12);
    background-size: 400% 400%;
    animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.logo {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    filter: drop-shadow(0 2px 8px rgba(52, 152, 219, 0.4));
}

.logo-subtitle {
    font-size: 0.9rem;
    color: #95a5a6;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Меню навигации */
.nav-menu {
    list-style: none;
    padding: 1rem 0;
    flex: 1;
}

.nav-item {
    margin-bottom: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: #bdc3c7;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    border-radius: 0 25px 25px 0;
    margin-right: 1rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: transparent;
    transition: all 0.3s ease;
}

.nav-link:hover {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.12), rgba(46, 204, 113, 0.06));
    color: #3498db;
    transform: translateX(0);
    margin-right: 0.5rem;
    border-radius: 0 12px 12px 0;
    box-shadow: inset 2px 0 8px rgba(52, 152, 219, 0.15);
}

.nav-link:hover::before {
    background: linear-gradient(135deg, #3498db, #2ecc71);
}

.nav-item.active .nav-link {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.2), rgba(46, 204, 113, 0.1));
    color: #3498db;
    font-weight: 600;
    transform: translateX(0);
    margin-right: 0;
    border-radius: 0;
    box-shadow: inset 3px 0 12px rgba(52, 152, 219, 0.25);
}

.nav-item.active .nav-link::before {
    background: linear-gradient(135deg, #3498db, #2ecc71);
}

.nav-icon {
    font-size: 1.3rem;
    margin-right: 1rem;
    width: 24px;
    text-align: center;
    transition: transform 0.3s ease;
}

.nav-link:hover .nav-icon {
    transform: scale(1.1);
}

.nav-text {
    font-size: 1rem;
    transition: all 0.3s ease;
}

/* Мобильная адаптивность */
@media (max-width: 1024px) {
    .admin-nav {
        transform: translateX(-100%);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    }
    
    .admin-nav.open {
        transform: translateX(0);
    }
    
    /* Кнопка меню (будет добавлена в JS) */
    .nav-toggle {
        position: fixed;
        top: 1rem;
        left: 1rem;
        z-index: 1001;
        background: rgba(26, 37, 47, 0.9);
        border: 1px solid rgba(52, 152, 219, 0.3);
        color: #3498db;
        padding: 12px;
        border-radius: 8px;
        cursor: pointer;
        backdrop-filter: blur(10px);
        font-size: 1.2rem;
        transition: all 0.3s ease;
    }
    
    .nav-toggle:hover {
        background: rgba(52, 152, 219, 0.2);
        transform: scale(1.05);
    }
}

@media (max-width: 768px) {
    .admin-nav {
        width: 100%;
    }
    
    .nav-link {
        padding: 1.2rem 1.5rem;
        margin-right: 0;
        border-radius: 0;
    }
    
    .nav-icon {
        font-size: 1.4rem;
    }
    
    .nav-text {
        font-size: 1.1rem;
    }
}

/* Анимация появления меню - убрано для избежания проблем с ресайзом */