* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f5f5;
    color: #333;
}

.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Экран авторизации */
#login-screen {
    display: none;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

#login-screen.active {
    display: flex;
}

.login-container {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-container h1 {
    margin-bottom: 1.5rem;
    text-align: center;
    color: #333;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.error-message {
    color: #e74c3c;
    margin-top: 1rem;
    display: none;
}

.error-message.show {
    display: block;
}

/* Основной интерфейс */
header {
    background: white;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

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

.tabs {
    background: white;
    border-bottom: 1px solid #ddd;
    padding: 0 2rem;
    display: flex;
    gap: 1rem;
}

.tab-btn {
    padding: 1rem 1.5rem;
    border: none;
    background: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-size: 1rem;
    color: #666;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: #333;
}

.tab-btn.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

main {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

h2 {
    margin-bottom: 1.5rem;
}

/* Статистика */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.stat-card .value {
    font-size: 2rem;
    font-weight: bold;
    color: #333;
}

/* Таблицы и списки */
.table {
    width: 100%;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table-header {
    background: #f8f9fa;
    padding: 1rem;
    font-weight: 600;
    border-bottom: 1px solid #ddd;
}

.table-row {
    padding: 1rem;
    border-bottom: 1px solid #eee;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    align-items: center;
}

.table-row:hover {
    background: #f8f9fa;
}

.table-row:last-child {
    border-bottom: none;
}

/* Кнопки */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-info {
    background: #17a2b8;
    color: white;
}

.btn-info:hover {
    background: #138496;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Модальные окна */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: white;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #ddd;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
}

.modal-body {
    padding: 1.5rem;
}

.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.file-list {
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 0.5rem;
}

.file-item {
    padding: 0.75rem;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.file-item:last-child {
    border-bottom: none;
}

.file-item-preview {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f5f5;
    position: relative;
    transition: transform 0.2s, box-shadow 0.2s;
}

.file-item-preview:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    cursor: pointer;
}

.file-item-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: pointer;
}

.file-item-preview .file-icon {
    font-size: 1.5rem;
}

.file-item-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.file-item-info .telegram-link:hover {
    text-decoration: underline;
    color: #0077b5;
}

.file-item input[type="checkbox"] {
    margin-right: 0.5rem;
}

/* Сетка превью файлов в модальном окне */
.file-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    max-height: 500px;
    overflow-y: auto;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #f9f9f9;
}

.file-preview-item {
    position: relative;
}

.file-preview-item input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.file-preview-label {
    display: block;
    cursor: pointer;
    border: 2px solid #ddd;
    border-radius: 8px;
    padding: 0.5rem;
    background: white;
    transition: all 0.2s;
}

.file-preview-label:hover {
    border-color: #667eea;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

.file-preview-item input[type="radio"]:checked + .file-preview-label {
    border-color: #667eea;
    background: #f0f4ff;
    box-shadow: 0 2px 12px rgba(102, 126, 234, 0.3);
}

.file-preview-image {
    width: 100%;
    height: 250px;
    border-radius: 4px;
    overflow: hidden;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.file-preview-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    max-width: 100%;
    max-height: 100%;
}

.file-preview-placeholder {
    width: 100%;
    height: 250px;
    border-radius: 4px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    border: 2px dashed #ddd;
}

.file-preview-placeholder .file-icon {
    font-size: 4rem;
    opacity: 0.5;
}

.file-preview-info {
    text-align: center;
}

.file-preview-name {
    font-weight: 500;
    font-size: 0.9rem;
    color: #333;
    margin-bottom: 0.25rem;
    word-break: break-word;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.file-preview-type {
    font-size: 0.75rem;
    color: #666;
    text-transform: uppercase;
}

/* Таблицы данных */
.data-table {
    width: 100%;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-collapse: collapse;
}

.data-table thead {
    background: #f8f9fa;
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid #ddd;
    color: #333;
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #eee;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* Маленькие кнопки */
.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.875rem;
}

/* Стили для триггеров */
.trigger-phrases {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #666;
    font-size: 0.9rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge-type {
    background: #e3f2fd;
    color: #1976d2;
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-active {
    background: #e8f5e9;
    color: #2e7d32;
}

.status-inactive {
    background: #ffebee;
    color: #c62828;
}

/* Модальное окно просмотра изображений */
.image-preview-overlay img {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* Модальное окно просмотра PDF - закомментировано (теперь PDF открывается в новой вкладке) */
/*
.pdf-preview-overlay iframe {
    background: #525659;
}

.pdf-preview-overlay {
    backdrop-filter: blur(4px);
}
*/

/* Ссылка на изделие во вкладке "Ошибки" */
.error-product-link {
    color: #0088cc;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.error-product-link:hover {
    text-decoration: underline;
    color: #0077b5;
    background: #f0f8ff;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
}

/* Анимация уведомления */
@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}