:root {
    --primary: #78909c;
    --primary-light: #b0bec5;
    --primary-dark: #546e7a;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-dark: #37474f;
    --text-muted: #607d8b;
    --border-light: #e2e8f0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: all 0.2s ease;
    --card-bg: #ffffff;
    --header-bg: #78909c;
    --input-bg: #ffffff;
}

body.dark {
    --primary: #90a4ae;
    --primary-light: #b0bec5;
    --primary-dark: #cfd8dc;
    --bg-light: #121212;
    --bg-white: #1e1e1e;
    --text-dark: #e0e0e0;
    --text-muted: #9e9e9e;
    --border-light: #333333;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --card-bg: #2d2d2d;
    --header-bg: #78909c;
    --input-bg: #2d2d2d;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.2s;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.containers {
    max-width: 1232px;
    margin: 0 auto;
    border-radius: 10px;
    margin-top: 10px;
}

/* Страница входа */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(145deg, #eef2f6 0%, #d9e2e9 100%);
}
body.dark .login-page {
    background: linear-gradient(145deg, #1a1a1a 0%, #0a0a0a 100%);
}

.login-container {
    background: var(--bg-white);
    padding: 48px 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 420px;
}
.centreee {
  text-align: center;
  margin-bottom: 10px;
}

.logbt{
    width: 100%;
    border: none;
    border-radius: 10px;;
    display: inline-block;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

/* Шапка */
.header {
    background: var(--header-bg);
    padding: 20px;
    margin-bottom: 32px;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.header h1 {
    font-size: 1.8rem;
    color: #ffffff;
    font-weight: 500;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    color: #ffffff;
}

.theme-toggle {
    background: #566973;
    border-radius: 40px;
    border: none;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}
.theme-toggle:hover {
    background: #37444a;
}

/* Карточки */
.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 32px;
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.card h2 {
    margin-bottom: 24px;
    color: var(--primary-dark);
    font-weight: 500;
    font-size: 1.5rem;
}

.card h3 {
    margin: 20px 0 12px;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 1.25rem;
}

/* Пояснительный блок */
.info-block {
    background: #f1f5f9;
    border-left: 4px solid var(--primary);
    padding: 20px 24px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 28px;
}
body.dark .info-block {
    background: #2a2a2a;
}

/* FAQ (аккордеон) */
.faq-item {
    border-bottom: 1px solid var(--border-light);
}

.faq-question {
    display: block;
    padding: 16px 0;
    font-weight: 500;
    color: var(--primary-dark);
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question::after {
    content: "▼";
    float: right;
    font-size: 12px;
    color: var(--primary-light);
    transition: transform 0.2s;
}

.faq-toggle {
    display: none;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 0 0 0;
}

.faq-toggle:checked + .faq-question::after {
    transform: rotate(180deg);
}

.faq-toggle:checked + .faq-question + .faq-answer {
    max-height: 200px;
    padding: 0 0 16px 0;
}

.faq-answer p {
    color: var(--text-muted);
    margin-bottom: 12px;
}

/* Ссылки-кнопки */
.external-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.btn-link {
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    padding: 12px 24px;
    border-radius: 40px;
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-link:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Формы */
.form-group {
    margin-bottom: 24px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

input, select, textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--input-bg);
    color: var(--text-dark);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(120, 144, 156, 0.15);
}

/* Кнопки */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border: none;
    border-radius: 40px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: #566973;
    color: #ffffff;
}

.btn-outline:hover {
    background: #37444a;
    border-color: var(--primary);
}

/* Таблицы */
.table-wrapper {
    overflow-x: auto;
}
.table {
    width: 100%;
    border-collapse: collapse;
    min-width: 500px;
}

.table th {
    text-align: left;
    padding: 16px 12px;
    border-bottom: 2px solid var(--primary-light);
    font-weight: 600;
    color: var(--primary-dark);
}

.table td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--border-light);
}

/* Статусы и приоритеты */
.priority, .status {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 500;
}

.priority-low {
    background: #e8f0e8;
    color: #2e6b2e;
}
.priority-medium {
    background: #fff3e0;
    color: #b85c00;
}
.priority-high {
    background: #fce4e4;
    color: #b71c1c;
}
.priority-critical {
    background: #b71c1c;
    color: white;
}

.status-pending {
    background: #fef9e6;
    color: #9e7e00;
}
.status-processing {
    background: #e3f0f5;
    color: #1e637b;
}
.status-completed {
    background: #e6f3e6;
    color: #2a6b2a;
}
.status-rejected {
    background: #fbeaec;
    color: #b71c1c;
}

/* Алерты */
.alert {
    padding: 16px 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 24px;
    border-left: 5px solid;
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
}

.alert-success {
    border-left-color: #2e7d32;
    background: #edf7ed;
    color: #1b5e20;
}
body.dark .alert-success {
    background: #1e3a1e;
    color: #81c784;
}

.alert-danger {
    border-left-color: #c62828;
    background: #fdeded;
    color: #b71c1c;
}
body.dark .alert-danger {
    background: #3a1e1e;
    color: #ef9a9a;
}

.alert-warning {
    border-left-color: #ed6c02;
    background: #fff4e5;
    color: #663c00;
}
body.dark .alert-warning {
    background: #3a2e1e;
    color: #ffb74d;
}

/* Поле для файла */
input[type="file"] {
    padding: 10px 0;
    border: none;
    background: transparent;
}

.hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.field-group {
    background: #fafbfc;
    border-radius: var(--border-radius-sm);
    padding: 24px;
    margin-bottom: 20px;
    border: 1px solid #e9eef2;
}
body.dark .field-group {
    background: #252525;
    border-color: #444;
}

/* Навигация */
.nav-links {
    display: flex;
    gap: 30px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 12px;
    flex-wrap: wrap;
}
.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-dark);
    border-bottom-color: var(--primary);
}

/* Модальное окно */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.modal {
    background: var(--card-bg);
    border-radius: 16px;
    max-width: 700px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}
.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { margin: 0; color: var(--primary-dark); }
.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-muted);
}
.modal-body { padding: 24px; }
.ticket-detail-row {
    display: flex;
    margin-bottom: 12px;
}
.ticket-detail-label {
    width: 120px;
    font-weight: 500;
    color: var(--text-muted);
}
.ticket-detail-value { flex: 1; }
.followup-item {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}
.followup-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.loading-spinner {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}
.btn-sm {
    padding: 6px 12px;
    font-size: 0.9rem;
}

/* Страница знаний */
.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}
.search-box input {
    flex: 1;
    padding: 14px 20px;
    font-size: 1.1rem;
}
.article-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    cursor: pointer;
}
.article-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}
.article-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 8px;
}
.article-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.article-preview {
    color: var(--text-dark);
    line-height: 1.5;
}
.article-content {
    line-height: 1.7;
}
.article-content img {
    max-width: 100%;
    height: auto;
}
.documents-list {
    margin-top: 20px;
}
.doc-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}
.no-results {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

/* Адаптивность */
@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .header .container { flex-direction: column; gap: 12px; text-align: center; }
    .external-links { flex-direction: column; }
    .btn-link { justify-content: center; }
    .card { padding: 20px; }
    .search-box { flex-direction: column; }
    .search-box button { width: 100%; }
    .modal { width: 95%; margin: 10px; }
    .ticket-detail-row { flex-direction: column; }
    .ticket-detail-label { width: auto; margin-bottom: 4px; }
}

/* Документы в базе знаний */
.documents-list {
    margin-top: 20px;
    border-top: 1px solid var(--border-light);
    padding-top: 15px;
}
.documents-list h4 {
    margin-bottom: 12px;
}
.doc-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
}
.doc-icon {
    font-size: 1.4rem;
}
.doc-name {
    flex: 1;
    word-break: break-all;
}
.doc-link {
    color: var(--primary-dark);
    text-decoration: none;
}
.doc-link:hover {
    text-decoration: underline;
}
.sort-buttons {
    display: flex;
    gap: 8px;
}
.sort-buttons .btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Стили для улучшенного модального окна */
.modal-large {
    max-width: 700px;
    width: 90%;
}
.modal-tabs {
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 20px;
    padding-bottom: 8px;
}
.tab-btn {
    background: none;
    border: none;
    padding: 8px 20px;
    font-size: 1rem;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 20px;
    transition: var(--transition);
}
.tab-btn.active {
    background: var(--primary);
    color: white;
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}
.detail-card {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}
.detail-row {
    display: flex;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.detail-label {
    width: 130px;
    font-weight: 500;
    color: var(--text-muted);
}
.detail-value {
    flex: 1;
}
.comment-item {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}
.comment-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 8px;
}
.comment-author {
    font-weight: 600;
    color: var(--primary-dark);
}
.comment-content {
    line-height: 1.5;
}
@media (max-width: 640px) {
    .detail-label { width: 100%; margin-bottom: 4px; }
    .modal-tabs { justify-content: center; }
}