/* Цветовая схема */
:root {
    --primary-color: #034c8c;
    --primary-dark: #02427A;
    --accent-color: #ec9c0c;
    --bg-white: #fff;
    --bg-light: #F5F5F5;
    --bg-blue-light: #E9F3FB;
    --bg-blue-lighter: #DCE8F2;
    --text-dark: #333;
    --text-muted: #777;
    --border-color: #ddd;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

/* Хедер */
.main-header {
    background-color: var(--primary-color);
    color: white;
    padding: 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 2rem;
}

.logo img {
    height: 50px;
    margin-right: 15px;
}

.main-nav {
    display: flex;
    gap: 0.5rem;
}

.main-nav a {
    color: white;
    text-decoration: none;
    padding: 0.7rem 1.2rem;
    border-radius: 4px;
    transition: background-color 0.3s;
    font-weight: 500;
    background-color: #015197;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.main-nav a:hover, .main-nav a.active {
    background-color: var(--primary-dark);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar, .user-avatar-placeholder {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    max-width: 40px;
    max-height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid white;
    flex-shrink: 0;
}

.user-avatar-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-color);
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
}

.user-name {
    color: white;
    font-weight: 500;
}

.btn-icon {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    padding: 0.3rem;
    transition: opacity 0.3s;
}

.btn-icon:hover {
    opacity: 0.8;
}

/* Основной контент */
.main-content {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
    min-height: calc(100vh - 200px);
}

/* Кнопки */
.btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s;
    text-align: center;
}

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

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

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

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

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

.btn-danger:hover {
    background-color: #c82333;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Логин страница */
.login-page {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-box {
    background: white;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo img {
    max-width: 150px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Формы */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="file"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* Алерты */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.alert-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.alert-error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

/* Dashboard */
.dashboard h1 {
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

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

.stat-content h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.stat-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.quick-actions {
    margin-top: 3rem;
}

.quick-actions h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.action-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-decoration: none;
    color: var(--text-dark);
    transition: all 0.3s;
    text-align: center;
}

.action-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.action-card-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, #d88a0b 100%);
    color: white;
}

.action-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.action-card h3 {
    margin-bottom: 0.5rem;
    color: inherit;
}

.action-card p {
    font-size: 0.9rem;
    color: inherit;
    opacity: 0.8;
}

/* Таблицы */
.container {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.container h1 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.page-actions {
    margin-bottom: 1.5rem;
}

.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.data-table th,
.data-table td {
    padding: 0.9rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--bg-blue-lighter);
    color: var(--primary-color);
    font-weight: 600;
    position: sticky;
    top: 0;
}

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

.badge {
    display: inline-block;
    padding: 0.3rem 0.7rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-primary {
    background-color: var(--primary-color);
    color: white;
}

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

.text-muted {
    color: var(--text-muted);
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.modal-large {
    max-width: 900px;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: #000;
}

/* Фильтры */
.filters-section {
    background: var(--bg-blue-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.filters-form {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group input,
.filter-group select {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

/* Инвойс */
.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.form-section h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.invoice-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.invoice-table th,
.invoice-table td {
    padding: 0.6rem;
    border: 1px solid var(--border-color);
}

.invoice-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.invoice-table input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 2px;
}

.invoice-totals {
    background: var(--bg-blue-lighter);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--border-color);
}

.total-final {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--primary-color);
    border-top: 2px solid var(--primary-color);
    padding-top: 1rem;
    margin-top: 0.5rem;
}

.form-actions {
    text-align: center;
    margin-top: 2rem;
}

/* Профиль */
.profile-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

.profile-avatar-section,
.profile-info-section {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
}

.current-avatar {
    text-align: center;
    margin-bottom: 1.5rem;
}

.current-avatar img,
.avatar-placeholder {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.avatar-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-color);
    color: white;
    font-size: 4rem;
    font-weight: bold;
    margin: 0 auto;
}

/* Просмотр инвойса */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.invoice-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.info-card {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
}

.info-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.info-table {
    width: 100%;
}

.info-table td {
    padding: 0.5rem 0;
}

.info-table td:first-child {
    width: 40%;
}

.amount-words {
    background: var(--bg-blue-light);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
    font-style: italic;
}

/* Футер */
.main-footer {
    background-color: var(--primary-dark);
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: 3rem;
}

/* Адаптивность */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .stats-grid,
    .actions-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-container {
        grid-template-columns: 1fr;
    }
    
    .invoice-info-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        gap: 1rem;
    }
}



/* ===================================
   LOADING INDICATOR & MESSAGES
   =================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.loading-spinner {
    background: white;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto 20px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-spinner p {
    color: var(--text-dark);
    font-size: 16px;
    font-weight: 500;
}

/* Message Box */
.message-box {
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    font-size: 14px;
    line-height: 1.5;
}

.message-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.message-error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.message-warning {
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
}

/* ===================================
   PREVIEW SECTION STYLES
   =================================== */

#previewSection {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.preview-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 20px;
    border-radius: 8px 8px 0 0;
    margin: -20px -20px 20px -20px;
}

.preview-header h3 {
    margin: 0 0 15px 0;
    font-size: 22px;
}

.preview-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
}

.preview-info p {
    margin: 5px 0;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 12px;
    border-radius: 4px;
}

.preview-info strong {
    color: var(--accent-color);
}

/* Preview Statistics */
.preview-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.stat-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    border: 2px solid #e0e0e0;
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-total {
    border-color: var(--primary-color);
}

.stat-new {
    border-color: var(--success-color);
}

.stat-update {
    border-color: var(--accent-color);
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-new .stat-number {
    color: var(--success-color);
}

.stat-update .stat-number {
    color: var(--accent-color);
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--text-muted);
}

/* Preview Table */
.preview-table-container {
    margin-bottom: 25px;
}

.preview-table-container h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 16px;
}

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

.preview-table thead {
    background: var(--primary-color);
    color: white;
}

.preview-table th,
.preview-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.preview-table th {
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

.preview-table code {
    background: #f4f4f4;
    padding: 4px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 600;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-new {
    background: #d4edda;
    color: #155724;
}

.status-update {
    background: #fff3cd;
    color: #856404;
}

/* Preview Actions */
.preview-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    padding-top: 20px;
    border-top: 2px solid #e0e0e0;
}

.preview-actions .btn {
    min-width: 150px;
    font-size: 16px;
    padding: 12px 24px;
}

/* Modal Content Adjustments for Preview */
#uploadSupplierModal .modal-content {
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .preview-stats {
        grid-template-columns: 1fr;
    }
    
    .preview-info {
        grid-template-columns: 1fr;
    }
    
    .preview-actions {
        flex-direction: column;
    }
    
    .preview-actions .btn {
        width: 100%;
    }
    
    .preview-table {
        font-size: 12px;
    }
    
    .preview-table th,
    .preview-table td {
        padding: 8px 10px;
    }
}