/* base.css */

:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: #eef2ff;
    --secondary: #7209b7;
    --secondary-dark: #5a189a;
    --secondary-light: #e0aaff;
    --success: #4cc9f0;
    --success-dark: #3aa8cc;
    --info: #4895ef;
    --warning: #f72585;
    --danger: #f72585;
    --light: #f8f9fa;
    --dark: #212529;
    --border: #dee2e6;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* НАВИГАЦИЯ */
.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    box-shadow: var(--shadow);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    display: flex;
    align-items: center;
    padding: 1rem 0;
}

.navbar-brand i {
    margin-right: 0.75rem;
    font-size: 1.75rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem;
    border-radius: 10px;
}

/* Гамбургер кнопка */
.navbar-toggler {
    border: none;
    padding: 0.5rem;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.15);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
    outline: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.5em;
    height: 1.5em;
}

/* Меню для мобильных */
.navbar-collapse {
    flex-basis: 100%;
    flex-grow: 0;
    order: 3;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    margin-top: 0.5rem;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

@media (min-width: 992px) {
    .navbar-collapse {
        flex-basis: auto;
        flex-grow: 0;
        order: 2;
        background: transparent;
        margin-top: 0;
        box-shadow: none;
    }
}

.navbar-nav {
    display: flex;
    flex-direction: column;
    width: 100%;
}

@media (min-width: 992px) {
    .navbar-nav {
        flex-direction: row;
        width: auto;
    }
}

.nav-item {
    width: 100%;
}

@media (min-width: 992px) {
    .nav-item {
        width: auto;
    }
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 1rem 1.25rem !important;
    border-radius: 0;
    margin: 0;
    display: flex;
    align-items: center;
    width: 100%;
}

@media (min-width: 992px) {
    .nav-link {
        border-radius: var(--radius);
        margin: 0 0.25rem;
        padding: 0.75rem 1.25rem !important;
        width: auto;
    }
}

.nav-link.active {
    color: white !important;
    background: rgba(255, 255, 255, 0.25);
}

/* Мобильное меню - разделители */
@media (max-width: 991.98px) {
    .nav-item:not(:last-child) {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .logout-form .nav-link {
        background: none;
        border: none;
        text-align: left;
        padding-left: 1.25rem !important;
    }
    
    .navbar-nav.me-auto {
        margin-right: 0 !important;
    }
}

/* Основной контент */
.container {
    max-width: 1200px;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    flex: 1;
}

main {
    padding: 2.5rem 0;
    flex: 1;
}

@media (max-width: 768px) {
    main {
        padding: 1.5rem 0;
    }
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* Карточки - без анимации */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    background: white;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-bottom: none;
    padding: 1.5rem;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
}

/* Белый текст для дополнительной информации */
.card-header .text-muted,
.card-header .small {
    color: rgba(255, 255, 255, 0.85) !important;
    opacity: 0.9;
}

.card-body {
    padding: 2rem;
}

@media (max-width: 768px) {
    .card-body {
        padding: 1.5rem;
    }
    .card-header {
        padding: 1.25rem;
    }
}

/* Кнопки - без анимации */
.btn {
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

/* Таблицы */
.table {
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    border-bottom: 2px solid var(--primary);
    font-weight: 600;
    color: var(--dark);
    padding: 1.25rem;
    background: var(--primary-light);
}

.table tbody td {
    padding: 1.25rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border);
}

/* Формы */
.form-control, .form-select {
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);
    outline: none;
}

/* Уведомления */
.alert {
    border: none;
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    border-left: 4px solid #28a745;
    color: #155724;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    border-left: 4px solid #17a2b8;
    color: #0c5460;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border-left: 4px solid #ffc107;
    color: #856404;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    border-left: 4px solid #dc3545;
    color: #721c24;
}

/* Модальные окна */
.modal-content {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-bottom: none;
    padding: 1.5rem;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem;
}

/* Подвал */
.footer {
    background: linear-gradient(135deg, #343a40 0%, #212529 100%);
    color: #adb5bd;
    padding: 3rem 0 2rem;
    margin-top: auto;
}

.footer a {
    color: #dee2e6;
    text-decoration: none;
}

.footer hr {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 2rem 0;
}

/* Анимация появления контента - только при загрузке страницы */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Утилиты */
.gradient-bg {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-card {
    box-shadow: var(--shadow);
}

.shadow-card-lg {
    box-shadow: var(--shadow-lg);
}

/* Иконки в карточках */
.card-icon {
    width: 70px;
    height: 70px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.75rem;
    box-shadow: var(--shadow);
}

.card-icon-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.card-icon-success {
    background: linear-gradient(135deg, var(--success) 0%, #4895ef 100%);
    color: white;
}

.card-icon-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #ff9e00 100%);
    color: white;
}

/* Адаптивность */
@media (max-width: 576px) {
    .btn-group-responsive {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-group-responsive .btn {
        width: 100%;
        margin-bottom: 0.75rem;
    }
    
    .table-responsive {
        border: 2px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
    }
    
    .card-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    /* Адаптивная навигация для маленьких экранов */
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .navbar-brand i {
        font-size: 1.5rem;
        margin-right: 0.5rem;
    }
}

/* Стили для навигации назад */
.btn-back {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    color: white;
}