/* ОСНОВНЫЕ СТИЛИ */
:root {
    --primary-color: #007bff;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-bg: #f8f9fa;
    --card-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --border-radius: 0.375rem;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    min-height: 100vh;
}

/* ЗАГОЛОВОК */
h1 {
    color: var(--primary-color);
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0,123,255,0.1);
    margin-bottom: 2rem;
}

/* КАРТОЧКИ */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background: linear-gradient(45deg, var(--primary-color), #0056b3);
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    font-weight: 500;
}

/* КНОПКИ */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), #0056b3);
    box-shadow: 0 0.125rem 0.25rem rgba(0,123,255,0.3);
}

.btn-primary:hover {
    background: linear-gradient(45deg, #0056b3, #004085);
    transform: translateY(-1px);
    box-shadow: 0 0.25rem 0.5rem rgba(0,123,255,0.4);
}

.btn-success {
    background: linear-gradient(45deg, var(--success-color), #1e7e34);
    box-shadow: 0 0.125rem 0.25rem rgba(40,167,69,0.3);
}

.btn-success:hover {
    background: linear-gradient(45deg, #1e7e34, #155724);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(45deg, var(--danger-color), #c82333);
    box-shadow: 0 0.125rem 0.25rem rgba(220,53,69,0.3);
}

.btn-danger:hover {
    background: linear-gradient(45deg, #c82333, #a71e2a);
    transform: translateY(-1px);
}

.btn-warning {
    background: linear-gradient(45deg, #ffc107, #e0a800);
    color: #212529;
    box-shadow: 0 0.125rem 0.25rem rgba(255,193,7,0.3);
}

.btn-warning:hover {
    background: linear-gradient(45deg, #e0a800, #d39e00);
    color: #212529;
    transform: translateY(-1px);
}

.btn-info {
    background: linear-gradient(45deg, var(--info-color), #117a8b);
    box-shadow: 0 0.125rem 0.25rem rgba(23,162,184,0.3);
}

.btn-info:hover {
    background: linear-gradient(45deg, #117a8b, #0c5460);
    transform: translateY(-1px);
}

.btn-outline-primary, .btn-outline-danger, .btn-outline-secondary, .btn-outline-info {
    border: 2px solid;
    font-weight: 500;
}

.btn-outline-primary:hover, .btn-outline-danger:hover, .btn-outline-secondary:hover, .btn-outline-info:hover {
    transform: translateY(-1px);
    box-shadow: 0 0.25rem 0.5rem rgba(0,0,0,0.15);
}

/* ФОРМЫ И ИНПУТЫ */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border: 2px solid #e9ecef;
    padding: 0.5rem 0.75rem;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
    transform: translateY(-1px);
}

.input-group .form-control {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group .btn {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

/* ВАЛИДАЦИЯ */
.is-invalid {
    border-color: #dc3545 !important;
    box-shadow: 0 0 0 0.2rem rgba(220,53,69,0.25) !important;
}

/* ТАБЛИЦЫ */
.table {
    margin-bottom: 0;
    font-size: 0.875rem;
}

.table th {
    background: linear-gradient(45deg, #6c757d, #5a6268);
    color: white;
    border: none;
    padding: 1rem 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.75rem;
}

.table td {
    vertical-align: middle;
    padding: 0.75rem;
    border-color: #f1f3f4;
}

.table-hover tbody tr:hover {
    background-color: rgba(0,123,255,0.05);
}

/* БЕЙДЖИ */
.badge {
    font-size: 0.75rem;
    padding: 0.5em 0.75em;
    border-radius: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ПАГИНАЦИЯ */
.pagination .page-link {
    border-radius: var(--border-radius);
    margin: 0 2px;
    border: 2px solid #e9ecef;
    color: var(--primary-color);
    font-weight: 500;
}

.pagination .page-item.active .page-link {
    background: linear-gradient(45deg, var(--primary-color), #0056b3);
    border-color: var(--primary-color);
}

.pagination .page-link:hover {
    background: rgba(0,123,255,0.1);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* МОДАЛЬНЫЕ ОКНА */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
}

.modal-header {
    background: linear-gradient(45deg, var(--primary-color), #0056b3);
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* АДАПТИВНОСТЬ */
@media (max-width: 768px) {
    .container-fluid {
        padding: 0 15px;
    }
    
    h1 {
        font-size: 1.75rem;
        margin-bottom: 1.5rem;
    }
    
    .table {
        font-size: 0.8rem;
    }
    
    .table th, .table td {
        padding: 0.5rem;
    }
    
    /* СТЕКИНГ КНОПОК НА МОБИЛЬНЫХ */
    .d-grid.gap-1.d-sm-block .input-group,
    .d-grid.gap-1.d-sm-block form {
        margin-bottom: 0.5rem;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .input-group .form-control,
    .input-group .btn {
        border-radius: var(--border-radius) !important;
        width: 100% !important;
        margin-bottom: 0.25rem;
    }
    
    /* СКРЫВАЕМ МЕНЬШЕ ВАЖНЫЕ КОЛОНКИ */
    .table th:nth-child(6),
    .table td:nth-child(6), /* Регион */
    .table th:nth-child(8),
    .table td:nth-child(8), /* Email */
    .table th:nth-child(9),
    .table td:nth-child(9)  /* Телефон */
    {
        display: none;
    }
}

@media (max-width: 576px) {
    .card-header h5 {
        font-size: 1rem;
    }
    
    .btn-sm {
        padding: 0.375rem 0.5rem;
        font-size: 0.75rem;
    }
    
    .input-group-sm .form-control {
        padding: 0.25rem 0.5rem;
        font-size: 0.875rem;
    }
}

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

.card, .alert {
    animation: fadeInUp 0.5s ease-out;
}

/* СТАТУСНЫЕ ИКОНКИ */
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }
.text-primary { color: var(--primary-color) !important; }

/* ТЕМНАЯ ТЕМА (ОПЦИОНАЛЬНО) */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
        color: #ecf0f1;
    }
    
    .card {
        background-color: #34495e;
        border-color: #495a6d;
    }
    
    .table {
        color: #ecf0f1;
    }
    
    .table th {
        background: linear-gradient(45deg, #2c3e50, #34495e);
    }
    
    .form-control, .form-select {
        background-color: #2c3e50;
        border-color: #495a6d;
        color: #ecf0f1;
    }
}