/* ==================== MATERIAL DESIGN CSS ==================== */

/* Material Design Color Palette */
:root {
    /* Primary Colors - Indigo */
    --md-primary-50: #E8EAF6;
    --md-primary-100: #C5CAE9;
    --md-primary-200: #9FA8DA;
    --md-primary-300: #7986CB;
    --md-primary-400: #5C6BC0;
    --md-primary-500: #3F51B5;
    --md-primary-600: #3949AB;
    --md-primary-700: #303F9F;
    --md-primary-800: #283593;
    --md-primary-900: #1A237E;
    
    /* Accent Colors - Teal */
    --md-accent-200: #80CBC4;
    --md-accent-400: #26A69A;
    --md-accent-700: #00796B;
    
    /* Grays */
    --md-gray-50: #FAFAFA;
    --md-gray-100: #F5F5F5;
    --md-gray-200: #EEEEEE;
    --md-gray-300: #E0E0E0;
    --md-gray-400: #BDBDBD;
    --md-gray-500: #9E9E9E;
    --md-gray-600: #757575;
    --md-gray-700: #616161;
    --md-gray-800: #424242;
    --md-gray-900: #212121;
    
    /* Status Colors */
    --md-success: #4CAF50;
    --md-warning: #FF9800;
    --md-error: #F44336;
    --md-info: #2196F3;
    
    /* Elevation shadows */
    --md-shadow-1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --md-shadow-2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --md-shadow-3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
    --md-shadow-4: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
    --md-shadow-5: 0 19px 38px rgba(0,0,0,0.30), 0 15px 12px rgba(0,0,0,0.22);
    
    /* Typography */
    --md-font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --md-transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

/* Global Styles */
body {
    font-family: var(--md-font-family);
    background-color: var(--md-gray-50);
    color: var(--md-gray-900);
    line-height: 1.5;
    font-size: 0.875rem;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* ==================== SIDEBAR LAYOUT ==================== */

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
    background-color: var(--md-primary-800);
    color: white;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-collapsed {
    transform: translateX(-260px);
}

.sidebar-header {
    padding: 1.25rem 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-header i {
    font-size: 1.5rem;
}

.sidebar-user {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-user i {
    font-size: 2rem;
    opacity: 0.9;
}

.sidebar-user-info {
    flex: 1;
}

.sidebar-user-name {
    font-weight: 600;
    font-size: 0.875rem;
}

.sidebar-user-dept {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 0.125rem;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1.5rem;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    transition: all 0.2s;
    font-size: 0.875rem;
}

.sidebar-link:hover {
    background-color: rgba(255,255,255,0.1);
    color: white;
}

.sidebar-link.active {
    background-color: rgba(255,255,255,0.15);
    color: white;
    border-left: 3px solid var(--md-accent-400);
}

.sidebar-link i {
    font-size: 1rem;
    opacity: 0.9;
}

.sidebar-divider {
    height: 1px;
    background-color: rgba(255,255,255,0.1);
    margin: 0.75rem 1.5rem;
}

.sidebar-section {
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.6;
    font-weight: 600;
}

.sidebar-footer {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 0.75rem 0;
}

.sidebar-logout {
    color: rgba(255,255,255,0.7);
}

.sidebar-logout:hover {
    background-color: rgba(244, 67, 54, 0.2);
    color: white;
}

/* Main Content Area */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease;
}

.sidebar-collapsed ~ .main-content {
    margin-left: 0;
}

/* Top Header */
.top-header {
    background-color: white;
    border-bottom: 1px solid var(--md-gray-200);
    padding: 0.875rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    position: sticky;
    top: 0;
    z-index: 999;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--md-gray-700);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    color: var(--md-primary-600);
}

.top-header-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--md-gray-900);
    flex: 1;
}

.top-header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.search-input {
    border: 1px solid var(--md-gray-300);
    border-radius: 3px;
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    width: 200px;
    transition: all 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--md-primary-500);
    box-shadow: 0 0 0 2px rgba(63, 81, 181, 0.1);
}

.search-btn {
    background: none;
    border: none;
    color: var(--md-gray-600);
    cursor: pointer;
    font-size: 1.125rem;
    padding: 0.25rem;
}

.search-btn:hover {
    color: var(--md-primary-600);
}

/* Content Wrapper */
.content-wrapper {
    flex: 1;
    padding: 1.5rem;
    background-color: var(--md-gray-50);
}

/* Responsive */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-260px);
    }
    
    .sidebar.sidebar-open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .search-input {
        width: 150px;
    }
}

@media (max-width: 768px) {
    .top-header {
        padding: 0.75rem 1rem;
    }
    
    .content-wrapper {
        padding: 1rem;
    }
    
    .top-header-title {
        font-size: 1rem;
    }
    
    .search-input {
        width: 120px;
        font-size: 0.8125rem;
    }
}

/* Corporate Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--md-gray-900);
}

/* Светлый текст на темном фоне */
.navbar h1, .navbar h2, .navbar h3, .navbar h4, .navbar h5, .navbar h6,
.card-header.bg-primary h1, .card-header.bg-primary h2, .card-header.bg-primary h3,
.card-header.bg-primary h4, .card-header.bg-primary h5, .card-header.bg-primary h6,
.card-header.bg-success h1, .card-header.bg-success h2, .card-header.bg-success h3,
.card-header.bg-success h4, .card-header.bg-success h5, .card-header.bg-success h6,
.card-header.text-white h1, .card-header.text-white h2, .card-header.text-white h3,
.card-header.text-white h4, .card-header.text-white h5, .card-header.text-white h6,
.bg-primary h1, .bg-primary h2, .bg-primary h3, .bg-primary h4, .bg-primary h5, .bg-primary h6,
.bg-success h1, .bg-success h2, .bg-success h3, .bg-success h4, .bg-success h5, .bg-success h6,
.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4, .bg-dark h5, .bg-dark h6 {
    color: white !important;
}

h1 { font-size: 1.75rem; font-weight: 600; }
h2 { font-size: 1.5rem; font-weight: 600; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1.125rem; font-weight: 500; }
h5 { font-size: 1rem; font-weight: 500; }
h6 { font-size: 0.875rem; font-weight: 500; }

/* Material Cards */
.card {
    border: 1px solid var(--md-gray-200);
    border-radius: 4px !important;
    box-shadow: none !important;
    transition: var(--md-transition);
    overflow: hidden;
}

.card:hover {
    border-color: var(--md-gray-300);
    box-shadow: var(--md-shadow-1) !important;
}

.card-header {
    border-bottom: 1px solid var(--md-gray-200);
    background-color: var(--md-gray-50);
    padding: 0.75rem 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--md-gray-900);
}

.card-header.bg-primary,
.card-header.bg-success,
.card-header.bg-dark,
.card-header.text-white {
    color: white !important;
    border-bottom-color: rgba(255,255,255,0.2);
}

.card-body {
    padding: 1rem;
}

/* Material Buttons */
.btn {
    border-radius: 3px;
    padding: 0.375rem 1rem;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
    transition: var(--md-transition);
    border: 1px solid transparent;
    box-shadow: none;
    font-size: 0.875rem;
}

.btn:hover {
    box-shadow: var(--md-shadow-1);
    transform: none;
}

.btn:active {
    transform: none;
    box-shadow: none;
}

.btn-primary {
    background-color: var(--md-primary-600);
}

.btn-primary:hover {
    background-color: var(--md-primary-700);
}

.btn-success {
    background-color: var(--md-success);
}

.btn-warning {
    background-color: var(--md-warning);
}

.btn-danger {
    background-color: var(--md-error);
}

.btn-info {
    background-color: var(--md-info);
}

.btn-secondary {
    background-color: var(--md-gray-500);
}

/* Outlined buttons */
.btn-outline-primary {
    color: var(--md-primary-600);
    border: 1px solid var(--md-primary-600);
    box-shadow: none;
}

.btn-outline-primary:hover {
    background-color: var(--md-primary-50);
    color: var(--md-primary-700);
}

/* Material Navigation */
.navbar {
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    background: var(--md-primary-700);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0;
}

/* Material Forms */
.form-control, .form-select {
    border: 1px solid var(--md-gray-300);
    border-radius: 3px;
    padding: 0.5rem 0.75rem;
    transition: var(--md-transition);
    font-size: 0.875rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--md-primary-500);
    box-shadow: 0 0 0 2px rgba(63, 81, 181, 0.1);
    outline: none;
}

.form-label {
    font-weight: 500;
    color: var(--md-gray-700);
    margin-bottom: 0.375rem;
    font-size: 0.8125rem;
    text-transform: none;
    letter-spacing: 0;
}

/* Material Tables */
.table {
    background-color: white;
    font-size: 0.8125rem;
}

.table-hover tbody tr {
    transition: var(--md-transition);
}

.table-hover tbody tr:hover {
    background-color: var(--md-gray-50);
    box-shadow: none;
}

.table thead {
    background-color: var(--md-gray-100);
    color: var(--md-gray-900);
    font-weight: 600;
    text-transform: none;
    font-size: 0.8125rem;
    letter-spacing: 0;
}

.table thead th {
    border-bottom: 2px solid var(--md-gray-300);
    padding: 0.75rem;
}

.table tbody td {
    padding: 0.75rem;
    vertical-align: middle;
}

/* Material Badges */
.badge {
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
    text-transform: none;
    letter-spacing: 0;
}

.bg-success { background-color: var(--md-success) !important; }
.bg-warning { background-color: var(--md-warning) !important; }
.bg-danger { background-color: var(--md-error) !important; }
.bg-info { background-color: var(--md-info) !important; }
.bg-primary { background-color: var(--md-primary-600) !important; }
.bg-secondary { background-color: var(--md-gray-500) !important; }

/* Material Alerts */
.alert {
    border: 1px solid;
    border-radius: 3px;
    padding: 0.75rem 1rem;
    border-left-width: 3px;
    font-size: 0.875rem;
}

.alert-success {
    background-color: #E8F5E9;
    color: #2E7D32;
    border-left-color: var(--md-success);
}

.alert-warning {
    background-color: #FFF3E0;
    color: #E65100;
    border-left-color: var(--md-warning);
}

.alert-danger {
    background-color: #FFEBEE;
    color: #C62828;
    border-left-color: var(--md-error);
}

.alert-info {
    background-color: #E3F2FD;
    color: #1565C0;
    border-left-color: var(--md-info);
}

/* Material Dropdowns */
.dropdown-menu {
    border: 1px solid var(--md-gray-300);
    border-radius: 3px;
    box-shadow: var(--md-shadow-2);
    padding: 0.25rem 0;
    font-size: 0.875rem;
}

.dropdown-item {
    padding: 0.5rem 1rem;
    transition: var(--md-transition);
}

.dropdown-item:hover {
    background-color: var(--md-gray-100);
    color: var(--md-primary-600);
}

.dropdown-divider {
    margin: 0.25rem 0;
}

/* Stat Cards with Material Design */
.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--md-shadow-2);
    transition: var(--md-transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--md-shadow-4);
}

/* Material Ripple Effect (pseudo) */
.btn::after,
.dropdown-item::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::after,
.dropdown-item:active::after {
    width: 300px;
    height: 300px;
}

/* Material Floating Action Button */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: var(--md-accent-400);
    color: white;
    border: none;
    box-shadow: var(--md-shadow-3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--md-transition);
    z-index: 1000;
}

.fab:hover {
    box-shadow: var(--md-shadow-4);
    transform: scale(1.1);
}

/* Smooth Animations - более сдержанные */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* Card entrance animation - убрать задержки */
.card {
    animation: none;
}

.card:nth-child(2) { animation-delay: 0s; }
.card:nth-child(3) { animation-delay: 0s; }
.card:nth-child(4) { animation-delay: 0s; }

/* Material Progress Bar */
.progress {
    height: 4px;
    border-radius: 2px;
    background-color: var(--md-gray-200);
}

.progress-bar {
    background-color: var(--md-primary-600);
    transition: width 0.6s ease;
}

/* Material Dividers */
hr {
    border: none;
    height: 1px;
    background-color: var(--md-gray-300);
    margin: 1.5rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .card-body {
        padding: 0.75rem;
    }
    
    h2 {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 0.375rem 0.875rem;
        font-size: 0.8125rem;
    }
    
    body {
        font-size: 0.8125rem;
    }
}

/* Table responsive improvements */
.table-responsive {
    border-radius: 3px;
    overflow: hidden;
    border: 1px solid var(--md-gray-200);
}

/* Improve focus states */
*:focus {
    outline: 2px solid var(--md-primary-500);
    outline-offset: 2px;
}

button:focus,
.btn:focus,
a:focus {
    outline: 2px solid var(--md-primary-500);
    outline-offset: 2px;
}

/* Material Icons alignment */
.bi {
    vertical-align: -0.125em;
}

/* Corporate adjustments */
.text-uppercase {
    letter-spacing: 0 !important;
}

small, .small {
    font-size: 0.8125rem;
}

.btn-group .btn {
    font-size: 0.8125rem;
}

/* Compact spacing */
.mb-4 {
    margin-bottom: 1.25rem !important;
}

.mb-3 {
    margin-bottom: 0.875rem !important;
}

/* Stricter table borders */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table td,
.table th {
    border-top: 1px solid var(--md-gray-200);
}

/* Более строгие отступы в формах */
.form-group {
    margin-bottom: 0.875rem;
}

/* Компактные иконки в навигации */
.navbar .bi {
    font-size: 0.875rem;
}

/* Уменьшить размер dropdown */
.navbar .dropdown-menu {
    min-width: 180px;
}