/* Импорт шрифтов */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* Основные переменные */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --sidebar-bg: #343a40;
}

/* Основные стили */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    margin: 0;
    padding: 0;
}

/* Навигационная панель */
.navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    height: 60px;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.navbar-brand {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--primary-color);
    margin: 0;
    display: flex;
    align-items: center;
    height: 100%;
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--primary-color);
}

.navbar .container-fluid {
    align-items: center;
    height: 100%;
}

.navbar-nav {
    align-items: center;
    height: 100%;
}

/* Боковое меню */
.sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    height: calc(100vh - 60px);
    width: 280px;
    background: var(--sidebar-bg);
    z-index: 1020;
    transform: translateX(0);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.sidebar.collapsed {
    transform: translateX(-280px);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h3 {
    color: white;
    font-weight: 600;
    font-size: 1rem;
    margin: 0;
    text-align: center;
}

.sidebar .nav {
    padding: 1rem 0;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: all 0.15s ease-in-out;
    font-weight: 400;
}

.sidebar .nav-link:hover {
    background: rgba(255, 255, 255, 0.075);
    color: white;
}

.sidebar .nav-link.active {
    background: var(--primary-color);
    color: white;
}

.sidebar .nav-link i {
    width: 20px;
    margin-right: 0.75rem;
    text-align: center;
}

.sidebar-heading {
    padding: 1rem 1.5rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Основной контент */
.main-content {
    margin-left: 280px;
    margin-top: 60px;
    min-height: calc(100vh - 60px);
    padding: 2rem;
    transition: margin-left 0.3s ease;
}

.main-content.expanded {
    margin-left: 0;
}

/* Кнопка переключения сайдбара */
.sidebar-toggle {
    position: fixed;
    top: 15px;
    left: 250px;
    z-index: 1031;
    background: var(--primary-color);
    border: none;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: background-color 0.15s ease-in-out;
}

.sidebar-toggle:hover {
    background: #0b5ed7;
}

.sidebar-toggle.hidden {
    left: 15px;
}

/* Карточки */
.card {
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    margin-bottom: 1.5rem;
}

.card-header {
    background: var(--light-color);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.25rem;
}

/* Кнопки */
.btn {
    font-weight: 500;
    padding: 0.375rem 0.75rem;
    transition: all 0.15s ease-in-out;
    border-width: 1px;
}

.btn:hover {
    transform: none;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.btn-success:hover {
    background-color: #157347;
    border-color: #146c43;
}

.btn-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
    color: var(--dark-color);
}

.btn-warning:hover {
    background-color: #ffcd39;
    border-color: #ffc720;
    color: var(--dark-color);
}

.btn-info {
    background-color: var(--info-color);
    border-color: var(--info-color);
    color: var(--dark-color);
}

.btn-info:hover {
    background-color: #3dd5f3;
    border-color: #25cff2;
    color: var(--dark-color);
}

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: #565e64;
    border-color: #51585e;
}

.btn-dark {
    background-color: var(--dark-color);
    border-color: var(--dark-color);
}

.btn-dark:hover {
    background-color: #424649;
    border-color: #373b3e;
}

/* Формы */
.form-control, .form-select {
    border: 1px solid var(--border-color);
    padding: 0.375rem 0.75rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus, .form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Таблицы */
.table {
    margin-bottom: 0;
}

.table-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.table thead th {
    background: var(--light-color);
    color: var(--text-primary);
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
    padding: 0.75rem;
}

.table tbody td {
    padding: 0.75rem;
    border-top: 1px solid var(--border-color);
    vertical-align: middle;
}

.table tbody tr:hover {
    background: rgba(13, 110, 253, 0.05);
}

/* Алерты */
.alert {
    border: 1px solid transparent;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d1e7dd;
    border-color: #badbcc;
    color: #0f5132;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c2c7;
    color: #842029;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffecb5;
    color: #664d03;
}

.alert-info {
    background-color: #cff4fc;
    border-color: #b6effb;
    color: #055160;
}

/* Стили для изображений товаров */
.product-thumbnail {
    width: 50px;
    height: 50px;
    object-fit: cover;
}

.product-image-preview {
    max-width: 200px;
    max-height: 200px;
    object-fit: cover;
}

/* Выпадающие меню */
.dropdown-menu {
    border: 1px solid var(--border-color);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    z-index: 1035;
}

.dropdown-item {
    padding: 0.5rem 1rem;
    transition: background-color 0.15s ease-in-out;
}

.dropdown-item:hover {
    background-color: var(--light-color);
}

/* Адаптивность */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-280px);
        top: 60px;
        height: calc(100vh - 60px);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        margin-top: 60px;
        padding: 1rem;
    }
    
    .sidebar-toggle {
        display: flex;
        top: 15px;
        left: 15px;
    }
    
    .sidebar-toggle.hidden {
        left: 15px;
    }
    
    .navbar {
        height: 60px;
        padding: 0.75rem 60px 0.75rem 1.5rem;
    }
    
    .navbar-brand {
        font-size: 1.125rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .table-container {
        padding: 1rem;
        overflow-x: auto;
    }
    
    .btn {
        font-size: 0.875rem;
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: 0.75rem;
    }
    
    .table-container {
        padding: 0.75rem;
    }
    
    .btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.8125rem;
    }
}