.site-header {
    background-color: var(--header-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    left: 0;
    right: 0;
}

.header-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
}

.header-left-group {
    display: flex;
    align-items: center;
    gap: 40px;
}

.logo img {
    height: 50px;
    display: block;
}

.main-nav {
    display: flex;
    gap: 25px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: var(--accent-color);
}

.admin-link {
    color: var(--accent-color) !important;
    font-weight: 700 !important;
}

.header-right-group {
    display: flex;
    align-items: center;
    gap: 25px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-right: 20px;
    border-right: 1px solid var(--color-block);
}

.user-avatar img {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--color-block);
    padding: 3px;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-color);
}

.user-badge {
    font-size: 11px;
    background: var(--color-block);
    color: var(--accent-color);
    padding: 1px 6px;
    border-radius: 4px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--accent-color);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-btn {
    padding: 8px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    transition: 0.3s;
}

.login { background-color: var(--accent-color); color: white !important; }
.logout { border: 2px solid var(--accent-color); color: var(--accent-color) !important; }

/* ==================== ПРОМЕЖУТОЧНАЯ АДАПТИВНОСТЬ ==================== */

@media (max-width: 1280px) {
    .header-container {
        padding: 0 20px;
    }
    
    .header-left-group {
        gap: 25px;
    }
    
    .main-nav {
        gap: 18px;
    }
    
    .main-nav a {
        font-size: 14.5px;
    }
}

/* ==================== МОБИЛЬНАЯ ВЕРСИЯ ==================== */
@media (max-width: 1200px) {
    .header-container {
        flex-direction: column;
        gap: 15px;
        padding: 12px 20px;
    }
    
    .header-left-group {
        flex-direction: column;
        gap: 12px;
        width: 100%;
        align-items: center;
    }
    
    .main-nav {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        text-align: center;
    }

    .header-right-group {
        width: 100%;
        justify-content: center;
        gap: 20px;
    }

    .user-profile {
        border-right: none;
        padding-right: 0;
        justify-content: center;
    }

}
@media (max-width: 992px) {
    .header-container {
        flex-direction: column;
        gap: 15px;
        padding: 12px 20px;
    }
    
    .header-left-group {
        flex-direction: column;
        gap: 12px;
        width: 100%;
        align-items: center;
    }
    
    .main-nav {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        text-align: center;
    }

    .header-right-group {
        width: 100%;
        justify-content: center;
        gap: 20px;
    }

    .user-profile {
        border-right: none;
        padding-right: 0;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .header-container {
        padding: 12px 15px;
    }
    
    .main-nav a {
        font-size: 14px;
    }
}