/* Официальный стиль для Bootstrap */
:root {
    --official-primary: #2c3e50;
    --official-secondary: #34495e;
    --official-accent: #1a5276;
    --official-light: #ecf0f1;
    --official-dark: #2c3e50;
    --official-success: #27ae60;
    --official-warning: #f39c12;
    --official-danger: #c0392b;
}

/* Более строгий шрифт */
body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Навбар - более сдержанный */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-bottom: 1px solid #e0e0e0;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.4rem;
}

.navbar-dark {
    background: linear-gradient(135deg, var(--official-primary), var(--official-secondary)) !important;
}

.navbar-light {
    background-color: #fff !important;
    border-bottom: 2px solid var(--official-primary);
}

/* Кнопки - более профессиональные */
.btn {
    border-radius: 4px;
    font-weight: 500;
    border: none;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--official-primary), var(--official-accent));
    box-shadow: 0 2px 4px rgba(44, 62, 80, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--official-accent), var(--official-primary));
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(44, 62, 80, 0.4);
}

.btn-outline-primary {
    border: 2px solid var(--official-primary);
    color: var(--official-primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--official-primary);
    color: white;
}

/* Карточки - более строгие */
.card {
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.card-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-bottom: 1px solid #dee2e6;
    font-weight: 600;
    padding: 1rem 1.25rem;
}

/* Таблицы - профессиональные */
.table {
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    overflow: hidden;
}

.table thead th {
    background: linear-gradient(135deg, var(--official-primary), var(--official-secondary));
    color: white;
    border: none;
    font-weight: 600;
    padding: 1rem;
}

.table tbody td {
    padding: 0.875rem;
    border-bottom: 1px solid #f0f0f0;
}

.table-hover tbody tr:hover {
    background-color: rgba(44, 62, 80, 0.04);
}

/* Формы - более четкие */
.form-control {
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    padding: 0.75rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--official-primary);
    box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.15);
}

.form-label {
    font-weight: 600;
    color: var(--official-dark);
    margin-bottom: 0.5rem;
}

/* Навигационные табы */
.nav-tabs {
    border-bottom: 2px solid #e0e0e0;
}

.nav-tabs .nav-link {
    border: none;
    color: #666;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
}

.nav-tabs .nav-link.active {
    background: none;
    color: var(--official-primary);
    border-bottom: 3px solid var(--official-primary);
    font-weight: 600;
}

/* Алерты - более сдержанные */
.alert {
    border: none;
    border-radius: 4px;
    border-left: 4px solid;
}

.alert-primary {
    background-color: rgba(44, 62, 80, 0.1);
    border-left-color: var(--official-primary);
    color: var(--official-dark);
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    border-radius: 3px;
}

.badge-primary {
    background: linear-gradient(135deg, var(--official-primary), var(--official-accent));
}

/* Progress bars */
.progress {
    border-radius: 3px;
    background-color: #f0f0f0;
    height: 8px;
}

.progress-bar {
    background: linear-gradient(135deg, var(--official-primary), var(--official-accent));
}

/* Модальные окна */
.modal-header {
    background: linear-gradient(135deg, var(--official-primary), var(--official-secondary));
    color: white;
    border-bottom: none;
    padding: 1.25rem;
}

.modal-title {
    font-weight: 600;
}

.modal-footer {
    border-top: 1px solid #e0e0e0;
    padding: 1.25rem;
}

/* Пагинация */
.page-link {
    color: var(--official-primary);
    border: 1px solid #e0e0e0;
    padding: 0.5rem 0.75rem;
}

.page-link:hover {
    color: var(--official-accent);
    background-color: #f8f9fa;
    border-color: #e0e0e0;
}

.page-item.active .page-link {
    background: linear-gradient(135deg, var(--official-primary), var(--official-accent));
    border-color: var(--official-primary);
}

/* Более строгие заголовки */
h1, h2, h3, h4, h5, h6 {
    color: var(--official-dark);
    font-weight: 600;
    margin-bottom: 1rem;
}

h1 {
    border-bottom: 2px solid var(--official-primary);
    padding-bottom: 0.5rem;
}

/* Jumbotron / Hero секция */
.jumbotron {
    background: linear-gradient(135deg, var(--official-primary), var(--official-secondary));
    color: white;
    border-radius: 6px;
    padding: 3rem 2rem;
}

/* Списки */
.list-group-item {
    border: 1px solid #f0f0f0;
    padding: 0.875rem 1.25rem;
}

.list-group-item:hover {
    background-color: rgba(44, 62, 80, 0.04);
}

/* Утилиты для более официального вида */
.shadow-official {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1) !important;
}

.border-official {
    border-color: #e0e0e0 !important;
}

.text-primary {
    color: var(--official-primary) !important;
}

.bg-primary {
    background-color: var(--official-primary) !important;
}