/* ============================================
   SCIENCE PORTAL INIT - MODERN DESIGN
   Academic Technology Interface
   ============================================ */

:root {
    /* Цветовая палитра - Academic Tech */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

* {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
}

/* ============================================
   БАЗОВЫЕ СТИЛИ
   ============================================ */

html, body {
    background-color: var(--light-bg);
    color: var(--text-main);
}

body {
    line-height: 1.6;
}

/* ============================================
   NAVBAR - СВЕТЛЫЙ СТИЛЬ
   ============================================ */

.navbar-modern {
    background-color: var(--card-bg) !important;
    box-shadow: var(--shadow-md) !important;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0 !important;
}

.institute-logo {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.institute-header {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.institute-name {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-secondary);
    text-transform: uppercase;
    line-height: 1.1;
}

.institute-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--primary-color);
    margin-top: 2px;
}

/* Navigation Links */
.nav-institute-link {
    position: relative;
    padding: 8px 16px !important;
    margin: 0 4px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    color: var(--text-main) !important;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-institute-link:hover {
    color: var(--primary-color) !important;
    background-color: rgba(37, 99, 235, 0.08);
}

.nav-institute-link i {
    font-size: 1rem;
}

/* Dropdown Menu */
.dropdown-institute {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 220px;
}

.dropdown-institute .dropdown-item {
    color: var(--text-main);
    padding: 12px 16px;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.dropdown-institute .dropdown-item i {
    margin-right: 10px;
    color: var(--primary-color);
}

.dropdown-institute .dropdown-item:hover {
    background-color: rgba(37, 99, 235, 0.08);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    transform: translateX(4px);
}

.dropdown-institute .dropdown-divider {
    border-top-color: var(--border-color);
}

/* Login Button */
.btn-institute-login {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: #ffffff !important;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-institute-login:hover {
    background: linear-gradient(135deg, #b91c1c 0%, #991b1b 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
    color: #ffffff !important;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main.main-content {
    background-color: transparent;
    border-radius: 0;
    box-shadow: none;
    flex: 1;
    margin-bottom: 2rem;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--card-bg);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-main);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

.card-title {
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.75rem;
}

.card-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    border-radius: 8px;
    padding: 0.5rem 1.2rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    border-radius: 8px;
    font-weight: 600;
}

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

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    border-radius: 8px;
    font-weight: 600;
}

.btn-secondary:hover {
    background-color: #475569;
    border-color: #475569;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.3px;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 0.75rem;
    display: inline-block;
}

h3 {
    font-size: 1.5rem;
    letter-spacing: -0.2px;
}

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   FORMS
   ============================================ */

.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
    color: var(--text-main);
    font-weight: 500;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group-text {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--primary-color);
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
    border-radius: var(--border-radius);
    border: none;
    padding: 1rem 1.25rem;
    font-weight: 500;
}

.alert-info {
    background-color: rgba(37, 99, 235, 0.1);
    color: #1d4ed8;
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.1);
    color: #15803d;
}

.alert-warning {
    background-color: rgba(251, 146, 60, 0.1);
    color: #ea580c;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

/* ============================================
   TABLES
   ============================================ */

table {
    border-collapse: collapse;
}

table th {
    background-color: var(--light-bg);
    color: var(--text-main);
    font-weight: 700;
    border-bottom: 2px solid var(--border-color);
    padding: 1rem;
}

table td {
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
}

table tr:hover {
    background-color: var(--light-bg);
}

/* ============================================
   BADGES
   ============================================ */

.badge {
    border-radius: 6px;
    padding: 0.4rem 0.8rem;
    font-weight: 600;
    font-size: 0.85rem;
}

.badge-primary {
    background-color: rgba(37, 99, 235, 0.15);
    color: var(--primary-color);
}

.badge-success {
    background-color: rgba(34, 197, 94, 0.15);
    color: #15803d;
}

.badge-info {
    background-color: rgba(59, 130, 246, 0.15);
    color: #1e40af;
}

/* ============================================
   LIST GROUPS
   ============================================ */

.list-group-item {
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
    color: var(--text-main);
    transition: all 0.2s ease;
}

.list-group-item:hover {
    background-color: var(--light-bg);
}

.list-group-item.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background-color: var(--dark-bg) !important;
    color: #cbd5e1 !important;
    margin-top: 4rem;
    padding: 3rem 0;
    border-top: 1px solid rgba(37, 99, 235, 0.2);
}

footer h5 {
    color: #ffffff;
    font-weight: 700;
    margin-bottom: 1rem;
}

footer a {
    color: #cbd5e1;
    text-decoration: none;
    transition: all 0.2s ease;
}

footer a:hover {
    color: var(--primary-color);
}

.footer-section {
    border-left: 3px solid var(--primary-color);
    padding-left: 1rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 992px) {
    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .institute-title {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .card {
        margin-bottom: 1rem;
    }
}

/* ============================================
   UTILITIES
   ============================================ */

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

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

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

.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow-md {
    box-shadow: var(--shadow-md) !important;
}

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

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(59, 130, 246, 0.05) 100%);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    border: 1px solid var(--border-color);
}

.hero-section h1 {
    margin-bottom: 0.5rem;
}

.hero-section .lead {
    color: var(--text-secondary);
    font-size: 1.15rem;
}

/* ============================================
   DOCUMENTS PAGE - MODERN ARCHIVE DESIGN
   ============================================ */

.documents-page {
    max-width: 100%;
}

.doc-eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.doc-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: #ffffff;
    border-radius: var(--border-radius);
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.doc-hero h1 {
    color: #ffffff;
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.doc-hero .lead {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

.doc-stats {
    display: flex;
    gap: 2rem;
}

.doc-stat {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.doc-stat .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
}

.doc-stat .value {
    font-size: 1.75rem;
    font-weight: 700;
    color: #ffffff;
}

.doc-hero-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.doc-hero-icon {
    font-size: 2.5rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
}

/* Active Filters */
.active-filters {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.filter-chip:hover {
    background-color: rgba(37, 99, 235, 0.15);
    transform: translateY(-1px);
}

.filter-chip.active {
    background-color: var(--primary-color);
    color: #ffffff;
    font-weight: 600;
}

/* Filter Cards */
.doc-filter-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--card-bg);
    transition: all 0.2s ease;
}

.doc-filter-card:hover {
    box-shadow: var(--shadow-md);
}

.filter-icon {
    font-size: 1.5rem;
    opacity: 0.7;
}

.filter-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Document Register Table */
.doc-register {
    border-radius: var(--border-radius);
    overflow: hidden;
}

.doc-register .card-header {
    background-color: var(--card-bg);
    border-bottom: 2px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

.doc-table {
    font-size: 0.95rem;
}

.doc-table thead {
    background-color: var(--light-bg);
    border-bottom: 2px solid var(--border-color);
}

.doc-table thead th {
    font-weight: 600;
    color: var(--text-main);
    padding: 1rem 1.5rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.doc-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.15s ease;
}

.doc-table tbody tr:hover {
    background-color: var(--light-bg);
}

.doc-table tbody td {
    padding: 1.25rem 1.5rem;
    vertical-align: middle;
}

.doc-number {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.doc-number.muted {
    color: var(--text-secondary);
    font-weight: 400;
}

.doc-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.doc-title {
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.95rem;
}

.doc-status {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.doc-status-active {
    background-color: rgba(34, 197, 94, 0.1);
    color: #15803d;
}

.doc-status-inactive {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

.doc-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
}

.doc-chip.subtle {
    opacity: 0.7;
}

.btn-soft-primary {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(37, 99, 235, 0.2);
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-soft-primary:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Empty State */
.empty-state {
    padding: 3rem 1.5rem;
}

.empty-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h5 {
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 1.5rem;
}

/* Document Hint */
.doc-hint {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--card-bg);
}

.doc-hint-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.doc-hint h6 {
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}

/* Responsive */
@media (max-width: 992px) {
    .doc-hero {
        padding: 2rem;
    }

    .doc-hero h1 {
        font-size: 1.75rem;
    }

    .doc-stats {
        gap: 1.5rem;
    }

    .doc-stat .value {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .doc-hero {
        padding: 1.5rem;
    }

    .doc-hero h1 {
        font-size: 1.5rem;
    }

    .doc-table thead {
        display: none;
    }

    .doc-table tbody tr {
        display: block;
        padding: 1rem;
        margin-bottom: 0.75rem;
        border: 1px solid var(--border-color);
        border-radius: 8px;
    }

    .doc-table tbody td {
        display: flex;
        justify-content: space-between;
        padding: 0.5rem 0;
        border: none;
    }

    .doc-table tbody td:not(:last-child) {
        border-bottom: 1px solid var(--border-color);
    }
}

/* ============================================
   DOCUMENTS PAGE
   ============================================ */

.documents-page {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.doc-hero {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12) 0%, rgba(59, 130, 246, 0.06) 100%);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 2rem;
}

.doc-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.doc-stats {
    gap: 1rem;
}

.doc-stat {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.9rem 1.1rem;
    box-shadow: var(--shadow-sm);
    min-width: 120px;
}

.doc-stat .label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.doc-stat .value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.doc-hero-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-radius: 14px;
    padding: 1.25rem 1.5rem;
    color: #ffffff;
    box-shadow: var(--shadow-lg);
}

.doc-hero-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.active-filters {
    border-radius: 14px;
    background: #ffffff;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: #ffffff;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.filter-chip:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.filter-chip.active {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.25);
    color: var(--primary-color);
}

.filter-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.doc-filter-card {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
}

.doc-filter-card .filter-icon {
    font-size: 1.2rem;
}

.doc-register .card-header {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    border-bottom: 1px solid var(--border-color);
}

.doc-table thead th {
    background: #f8fafc;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.doc-table td {
    border-top: 1px solid var(--border-color);
}

.doc-table tr:hover {
    background-color: rgba(37, 99, 235, 0.04);
}

.doc-number {
    font-weight: 700;
    color: var(--text-main);
}

.doc-number.muted {
    color: var(--text-secondary);
    font-weight: 600;
}

.doc-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.doc-title {
    font-weight: 700;
    color: var(--text-main);
}

.doc-status {
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    border: 1px solid transparent;
}

.doc-status-active {
    background: rgba(34, 197, 94, 0.12);
    color: #15803d;
    border-color: rgba(34, 197, 94, 0.3);
}

.doc-status-inactive {
    background: rgba(239, 68, 68, 0.12);
    color: #b91c1c;
    border-color: rgba(239, 68, 68, 0.3);
}

.doc-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.35rem 0.65rem;
    border-radius: 10px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--text-main);
    border: 1px solid rgba(37, 99, 235, 0.15);
}

.doc-chip.subtle {
    background: rgba(148, 163, 184, 0.15);
    border-color: rgba(148, 163, 184, 0.3);
}

.btn-soft-primary {
    background: rgba(37, 99, 235, 0.08);
    color: var(--primary-color);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 10px;
    font-weight: 700;
}

.btn-soft-primary:hover {
    background: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.empty-state {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: #ffffff;
}

.empty-icon {
    font-size: 2.5rem;
}

.doc-hint {
    border: 1px dashed var(--border-color);
    border-radius: 12px;
    background: #ffffff;
}

.doc-hint-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.12);
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

@media (max-width: 768px) {
    .doc-hero {
        padding: 1.5rem;
    }

    .doc-table thead {
        display: none;
    }

    .doc-table tr {
        display: block;
        padding: 0.75rem 1rem;
    }

    .doc-table td {
        display: flex;
        justify-content: space-between;
        border: none;
        padding: 0.35rem 0;
    }

    .doc-table td:last-child {
        border-top: 1px solid var(--border-color);
        margin-top: 0.5rem;
        padding-top: 0.75rem;
    }
}