/* ============================================
   MODERN UNIFIED STYLESHEET v2.1
   Современный унифицированный стиль для приложения
   ============================================ */

/* ========== CSS VARIABLES (CUSTOM PROPERTIES) ========== */
:root {
    /* Палитра цветов - основные */
    --color-primary: #1976d2;
    --color-primary-light: #42a5f5;
    --color-primary-dark: #1565c0;
    --color-secondary: #3498db;
    --color-accent: #e74c3c;
    
    /* Статусы */
    --color-success: #2e7d32;
    --color-success-light: #c8e6c9;
    --color-success-bg: #e8f5e9;
    --color-warning: #ff8f00;
    --color-warning-light: #ffecb3;
    --color-warning-bg: #fff8e1;
    --color-info: #1565c0;
    --color-info-light: #bbdefb;
    --color-info-bg: #e3f2fd;
    --color-error: #c62828;
    --color-error-light: #ffcdd2;
    --color-error-bg: #ffebee;
    
    /* Нейтральные цвета */
    --color-bg-primary: #f5f7fa;
    --color-bg-secondary: #ffffff;
    --color-text-primary: #222222;
    --color-text-secondary: #666666;
    --color-text-light: #999999;
    --color-border: #e0e0e0;
    --color-border-light: #f0f0f0;
    
    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    --gradient-btn-primary: linear-gradient(90deg, #1976d2 60%, #64b5f6 100%);
    --gradient-btn-primary-hover: linear-gradient(90deg, #1565c0 60%, #42a5f5 100%);
    
    /* Типография */
    --font-family-base: 'Segoe UI', Roboto, Arial, sans-serif;
    --font-family-mono: 'Courier New', monospace;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --line-height-normal: 1.6;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    --spacing-3xl: 32px;
    
    /* Border radius */
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 14px;
    --border-radius-xl: 20px;
    
    /* Shadow */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-header: 0 2px 10px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-base: all 0.2s ease;
    --transition-slow: all 0.3s ease;
    
    /* Z-index */
    --z-header: 100;
    --z-modal: 200;
    --z-dropdown: 150;
}

/* ========== RESET & BASE STYLES ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    transition: var(--transition-slow);
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-base); }
h5 { font-size: var(--font-size-sm); }
h6 { font-size: var(--font-size-sm); }

p {
    margin-bottom: var(--spacing-lg);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

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

code {
    background: var(--color-border-light);
    color: var(--color-accent);
    padding: 2px 6px;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-mono);
    font-size: 0.9em;
}

/* ========== LAYOUT ========== */
.container {
    max-width: 100%;
    padding: var(--spacing-lg);
    margin: 0 auto;
}

.container-narrow {
    max-width: 1200px;
    padding: var(--spacing-lg);
    margin: 0 auto;
}

/* ========== HEADER ========== */
header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-lg) var(--spacing-lg);
    box-shadow: var(--shadow-header);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    min-height: auto;
}

header h2 {
    margin: 0 0 var(--spacing-md) 0;
    color: white;
    font-size: var(--font-size-lg);
}

header input {
    max-width: 320px;
    margin: var(--spacing-lg) auto 0;
    display: block;
}

/* ========== CARDS & CONTAINERS ========== */
.card, .info-card {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    transition: var(--transition-base);
}

.card:hover, .info-card:hover {
    box-shadow: var(--shadow-lg);
}

.info-card {
    border-left: 4px solid var(--color-primary);
    background: var(--color-bg-primary);
}

.info-card.collapsed .info-content {
    display: none;
}

/* ========== FORMS & INPUTS ========== */
.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-label {
    display: block;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-lg);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: var(--font-family-base);
    transition: var(--transition-base);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-info-bg);
}

input::placeholder {
    color: var(--color-text-light);
}

/* Специальные стили для сканирования */
.scan-input {
    font-size: var(--font-size-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
    width: 100%;
    font-family: var(--font-family-base);
}

.scan-label {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    display: block;
    font-weight: var(--font-weight-medium);
}

.scan-section {
    margin-bottom: var(--spacing-2xl);
}

/* ========== BUTTONS ========== */
.btn, button {
    display: inline-block;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: var(--font-weight-medium);
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
    font-family: var(--font-family-base);
    text-align: center;
}

.btn {
    background: var(--color-text-primary);
    color: white;
    margin-top: var(--spacing-lg);
    margin-right: var(--spacing-md);
    display: inline-block;
}

.btn:active,
.btn:focus {
    transform: translateY(1px);
    box-shadow: var(--shadow-sm);
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--gradient-btn-primary-hover);
}

.btn-primary:active,
.btn-primary:focus {
    background: var(--gradient-btn-primary-hover);
}

.btn-secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border-light);
}

.btn-secondary:active,
.btn-secondary:focus {
    background: var(--color-border-light);
}

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

.btn-danger:hover:not(:disabled) {
    background: #b71c1c;
}

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

.btn-success:hover:not(:disabled) {
    background: #1b5e20;
}

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

.btn-warning:hover:not(:disabled) {
    background: #e65100;
}

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

.btn-info:hover:not(:disabled) {
    background: var(--color-primary-dark);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Специальные кнопки */
.scan-btn {
    font-size: var(--font-size-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-md);
    background: var(--color-secondary);
    color: white;
    border: none;
    margin-bottom: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition-base);
}

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

.scan-btn:active {
    transform: scale(0.98);
}

.btn-camera {
    position: absolute;
    right: var(--spacing-xl);
    top: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-base);
}

.btn-camera:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Компактные кнопки для заголовков документов */
.btn-compact {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
    font-weight: var(--font-weight-medium);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-base);
    margin-left: var(--spacing-md);
    text-decoration: none;
    color: white;
    white-space: nowrap;
}

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

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

.btn-compact-info {
    background: var(--color-info);
    margin-left: var(--spacing-md);
}

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

/* Компактный контейнер для информации и кнопок */
.doc-header-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.doc-actions-compact {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

/* ========== TABLES ========== */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    margin-bottom: var(--spacing-xl);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

th, td {
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    background: var(--color-border-light);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

tr:last-child td {
    border-bottom: none;
}

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

/* Row status colors */
tr.completed-row {
    background: var(--color-success-bg) !important;
}

tr.in-progress-row {
    background: var(--color-warning-bg);
}

tr.error-row {
    background: var(--color-error-bg);
}

/* ========== BADGES & STATUS ========== */
.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin: var(--spacing-xs) var(--spacing-xs);
}

.badge-primary { background: var(--color-info-light); color: var(--color-info); }
.badge-success { background: var(--color-success-light); color: var(--color-success); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge-danger { background: var(--color-error-light); color: var(--color-error); }
.badge-info { background: var(--color-info-light); color: var(--color-info); }

/* Status badges in list */
.status-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    padding: 3px 8px;
    border-radius: 10px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

.status-new, .status-new-badge {
    background: #bbdefb;
    color: #0d47a1;
}

.status-progress, .status-progress-badge {
    background: #ffecb3;
    color: #e65100;
}

.status-completed, .status-completed-badge {
    background: #c8e6c9;
    color: #1b5e20;
}

.status-error, .status-error-badge {
    background: #ffcdd2;
    color: #b71c1c;
}

/* ========== LISTS & ITEMS ========== */
.document-item, .product-card-mobile {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
    cursor: pointer;
}

.document-item:active, .product-card-mobile:active {
    transform: scale(0.98);
}

.doc-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-lg);
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.doc-info, .product-info-mobile {
    flex: 1;
}

.doc-name, .product-name-mobile {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    padding-right: 70px;
}

.doc-meta, .product-meta-mobile {
    display: flex;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    flex-wrap: wrap;
}

.doc-meta span, .product-meta-mobile span {
    margin-right: var(--spacing-xl);
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.doc-meta i {
    margin-right: var(--spacing-md);
}

.product-card-mobile {
    background: var(--color-warning-bg);
}

.product-card-mobile.product-complete {
    background: var(--color-success-bg);
}

.product-badge-mobile {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: 3px 8px;
    border-radius: 10px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

.product-badge-complete {
    background: var(--color-success-light);
    color: var(--color-success);
}

.product-badge-incomplete {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

/* ========== FILTERS ========== */
.filter-section {
    display: flex;
    overflow-x: auto;
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-lg);
    scrollbar-width: none;
}

.filter-section::-webkit-scrollbar {
    display: none;
}

.filter-btn {
    background: var(--color-bg-secondary);
    border: none;
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-right: var(--spacing-md);
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition-base);
}

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

.filter-btn:hover:not(.active) {
    box-shadow: var(--shadow-md);
}

/* ========== SEARCH ========== */
.search-bar {
    display: flex;
    align-items: center;
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: 8px 12px;
    margin-bottom: var(--spacing-2xl);
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.search-bar i {
    color: var(--color-primary);
    font-size: var(--font-size-base);
    margin-right: var(--spacing-md);
}

.search-bar input {
    border: none;
    outline: none;
    font-size: var(--font-size-base);
    background: transparent;
    flex: 1;
    padding: var(--spacing-sm) 0;
    color: var(--color-text-primary);
}

.search-bar input::placeholder {
    color: var(--color-text-light);
}

/* ========== STATISTICS ========== */
.stats-bar {
    display: flex;
    justify-content: space-around;
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.stat-value {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.stat-new { color: var(--color-info); }
.stat-progress { color: var(--color-warning); }
.stat-completed { color: var(--color-success); }
.stat-error { color: var(--color-error); }

/* ========== INFO CARDS ========== */
.info-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.info-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--color-primary);
}

.info-toggle {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    cursor: pointer;
    padding: 0 var(--spacing-md);
    transition: var(--transition-base);
}

.info-toggle:hover {
    color: var(--color-primary-dark);
}

.info-content {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.barcode-type {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--color-secondary);
}

.barcode-type strong {
    color: var(--color-primary);
}

.barcode-type p {
    margin: var(--spacing-md) 0 0 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.instruction-card ol {
    margin: 0;
    padding-left: 20px;
}

.instruction-card li {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-normal);
}

/* ========== SETTINGS ========== */
.settings-list {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.settings-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border-light);
    cursor: pointer;
    transition: var(--transition-base);
}

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

.settings-item i {
    font-size: var(--font-size-xl);
    margin-right: var(--spacing-2xl);
    color: var(--color-primary);
}

.settings-item span {
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
}

.settings-item:hover {
    background: var(--color-bg-primary);
}

/* ========== DOCUMENT ACTIONS & BUTTONS ========== */
.doc-actions {
    display: flex;
    gap: 10px;
    margin: 0 10px;
}

.doc-action-btn {
    padding: 8px 12px;
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.doc-action-btn:hover {
    background: var(--color-primary-dark);
    color: white;
    text-decoration: none;
}

.icon-only-btn {
    width: 36px;
    height: 36px;
    padding: 0 !important;
    border-radius: 50%;
    justify-content: center;
}

.icon-only-btn i {
    margin: 0 !important;
}

.icon-only-badge {
    min-width: 36px;
    height: 36px;
    padding: 0 !important;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1rem;
}

.doc-actions-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.doc-header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.doc-actions-buttons {
    display: flex;
    gap: 10px;
}

.btn-compact, .btn-compact-primary, .btn-compact-info {
    padding: 6px 14px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-base);
    font-weight: var(--font-weight-medium);
}

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

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

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

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

.doc-actions-compact {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.doc-header-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.doc-header-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

/* ========== LOGIN PAGE ========== */
.login-container {
    max-width: 400px;
    margin: 0 auto;
    padding-top: 80px;
}

.login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-footer {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
}

/* ========== HELP PAGE ========== */
.help-container {
    max-width: 1200px;
    margin: 0 auto;
}

.help-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    border-bottom: 2px solid var(--color-border);
}

.help-tab-btn {
    background: none;
    border: none;
    padding: 12px 20px;
    font-size: 1rem;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    color: var(--color-text-secondary);
    transition: var(--transition-base);
}

.help-tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

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

.help-content {
    display: none;
}

.help-content.active {
    display: block;
    animation: helpFadeIn 0.3s ease-in;
}

@keyframes helpFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.help-section {
    margin-bottom: 30px;
}

.help-section h2 {
    color: var(--color-primary-dark);
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.faq-item {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    padding: 15px;
    background: var(--color-bg-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--color-text-primary);
    transition: var(--transition-base);
}

.faq-question:hover {
    background: var(--color-border-light);
}

.faq-answer {
    padding: 15px;
    display: none;
    line-height: 1.6;
}

.faq-answer.show {
    display: block;
}

/* ========== DOCUMENT LOG VIEWER ========== */
.log-container {
    max-width: 1200px;
    margin: 0 auto;
}

.document-header {
    background: var(--gradient-primary);
    color: white;
    padding: 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 20px;
}

.document-header h2 {
    margin: 0 0 10px 0;
}

.document-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 0.95rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-section {
    background: var(--color-bg-secondary);
    padding: 15px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 20px;
    border: 1px solid var(--color-border);
}

.filter-row {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-group label {
    font-weight: 600;
    color: var(--color-text-primary);
}

.filter-group select {
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    background: var(--color-bg-secondary);
    cursor: pointer;
    font-size: 0.95rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

/* ========== BOTTOM MENU ========== */
.bottom-menu {
    display: flex;
    justify-content: space-around;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--color-bg-secondary);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-md) 0;
    z-index: calc(var(--z-header) - 1);
}

.bottom-menu .menu-item {
    text-align: center;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: var(--spacing-md);
    transition: var(--transition-base);
}

.bottom-menu .menu-item i {
    display: block;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.bottom-menu .menu-item:hover,
.bottom-menu .menu-item.active {
    color: var(--color-primary-dark);
    background: var(--color-bg-primary);
}

/* ========== UTILITIES ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-error); }

.bg-light { background: var(--color-bg-primary); }
.bg-white { background: var(--color-bg-secondary); }
.bg-success { background: var(--color-success-bg); }
.bg-warning { background: var(--color-warning-bg); }
.bg-danger { background: var(--color-error-bg); }
.bg-info { background: var(--color-info-bg); }

.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-lg); }
.mt-3 { margin-top: var(--spacing-xl); }
.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-lg); }
.mb-3 { margin-bottom: var(--spacing-xl); }
.p-1 { padding: var(--spacing-md); }
.p-2 { padding: var(--spacing-lg); }
.p-3 { padding: var(--spacing-xl); }

.hidden { display: none !important; }
.visible { display: block !important; }

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

.documents-list {
    padding-bottom: 100px;
}

/* ========== RESPONSIVE DESIGN ========== */
/* Mobile First - 320px and up */
@media (max-width: 480px) {
    :root {
        --font-size-base: 0.95rem;
        --font-size-lg: 1.05rem;
        --spacing-lg: 12px;
        --spacing-xl: 16px;
        --spacing-2xl: 18px;
    }

    body { background: var(--color-bg-primary); }

    .container {
        padding: var(--spacing-md);
    }

    header {
        padding: var(--spacing-md);
    }

    header h2 {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-md);
    }

    header input.scan-input {
        font-size: 1rem;
        padding: var(--spacing-md) var(--spacing-lg);
        max-width: 260px;
    }

    .card, .info-card {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }

    h2, h3 { font-size: var(--font-size-lg); }

    th, td {
        font-size: var(--font-size-sm);
        padding: var(--spacing-md) var(--spacing-xs);
    }

    .btn, .scan-btn {
        font-size: var(--font-size-sm);
        padding: var(--spacing-md) var(--spacing-lg);
        margin-top: var(--spacing-md);
    }

    .scan-input {
        font-size: 1.1rem;
    }

    .btn-camera {
        right: var(--spacing-md);
        top: var(--spacing-md);
        font-size: 1.2rem;
        padding: var(--spacing-md);
    }

    .settings-item span { font-size: var(--font-size-base); }

    .document-item, .product-card-mobile {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .doc-icon {
        width: 45px;
        height: 45px;
        font-size: var(--font-size-base);
        margin-right: var(--spacing-md);
    }

    .doc-meta {
        flex-direction: column;
    }

    .doc-meta span {
        margin-bottom: var(--spacing-xs);
    }

    .stats-bar {
        padding: var(--spacing-md) var(--spacing-xs);
    }

    .stat-value { font-size: var(--font-size-base); }
    .stat-label { font-size: 0.65rem; }

    .search-bar {
        max-width: 100%;
    }

    .filter-section {
        padding: var(--spacing-md) 0;
        margin-bottom: var(--spacing-md);
    }

    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-lg);
        margin-right: var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .info-card {
        padding: var(--spacing-md);
    }

    .barcode-type {
        margin-bottom: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .instruction-card li {
        font-size: var(--font-size-sm);
    }

    table {
        font-size: var(--font-size-sm);
    }

    .hide-on-mobile {
        display: none;
    }

    #productsTableContainer {
        display: none;
    }

    .products-list-mobile {
        display: block;
        padding-bottom: var(--spacing-lg);
    }

    .documents-list {
        padding-bottom: 100px;
    }
}

/* Tablet - 481px to 768px */
@media (min-width: 481px) and (max-width: 768px) {
    :root {
        --font-size-base: 0.98rem;
        --spacing-lg: 14px;
    }

    .container {
        padding: var(--spacing-lg);
    }

    header {
        padding: var(--spacing-lg);
    }

    .card, .info-card {
        padding: var(--spacing-2xl);
        margin-bottom: var(--spacing-2xl);
    }

    .documents-list {
        padding-bottom: 100px;
    }

    #productsTableContainer {
        display: block;
        overflow-x: auto;
    }

    .products-list-mobile {
        display: none;
    }

    .hide-on-mobile {
        display: table-cell !important;
    }

    /* Адаптация таблиц */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .table-responsive table {
        min-width: 600px;
    }
}

/* Desktop - 769px and up */
@media (min-width: 769px) {
    .container {
        max-width: 1200px;
        margin: 0 auto;
    }

    .documents-list {
        padding-bottom: 20px;
    }

    .bottom-menu {
        position: static;
        padding: var(--spacing-lg) 0;
        background: var(--color-bg-primary);
        box-shadow: none;
        margin-top: var(--spacing-2xl);
    }

    .bottom-menu .menu-item {
        color: var(--color-text-secondary);
    }

    .bottom-menu .menu-item:hover,
    .bottom-menu .menu-item.active {
        color: var(--color-primary);
    }

    #productsTableContainer {
        display: table;
    }

    .products-list-mobile {
        display: none;
    }

    .hide-on-mobile {
        display: table-cell;
    }
}

/* Large Desktop - 1440px and up */
@media (min-width: 1440px) {
    .container-narrow {
        max-width: 1400px;
    }
}

/* ========== PRINT STYLES ========== */
@media print {
    .btn, .bottom-menu, .filter-section, .search-bar {
        display: none;
    }

    .card, .table-responsive {
        box-shadow: none;
        border: 1px solid var(--color-border);
    }
}
/* ========================================
   MODERN DASHBOARD & HERO SECTION
   ======================================== */

/* Hero Section */
.hero-section {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
    border-radius: 0 0 var(--border-radius-xl) var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
}

.hero-welcome h1 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: 0;
}

.hero-subtitle {
    font-size: var(--font-size-base);
    opacity: 0.9;
    margin-top: var(--spacing-xs);
}

.hero-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    opacity: 0.95;
}

/* Dashboard Container */
.dashboard-container {
    padding-bottom: 100px;
}

/* Modern Stats Grid */
.stats-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.stat-card {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    cursor: pointer;
    border-left: 4px solid transparent;
}

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

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

.stat-card.stat-warning {
    border-left-color: var(--color-warning);
}

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

.stat-card.stat-info {
    border-left-color: var(--color-info);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.stat-primary .stat-icon {
    background: var(--color-info-bg);
    color: var(--color-primary);
}

.stat-warning .stat-icon {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.stat-success .stat-icon {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.stat-info .stat-icon {
    background: var(--color-info-bg);
    color: var(--color-info);
}

.stat-info .stat-value {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: 1;
}

.stat-info .stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.section-header h2 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.section-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition-base);
}

.section-link:hover {
    color: var(--color-primary-dark);
    gap: var(--spacing-md);
}

/* Action Cards Grid */
.action-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.action-card {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    text-decoration: none;
    color: var(--color-text-primary);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.action-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-primary);
    transition: var(--transition-base);
}

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

.action-card:hover::before {
    width: 100%;
    opacity: 0.05;
}

.action-card-primary::before {
    background: var(--color-primary);
}

.action-card-blue::before {
    background: #2196F3;
}

.action-card-purple::before {
    background: #9C27B0;
}

.action-card-orange::before {
    background: #FF9800;
}

.action-icon {
    width: 55px;
    height: 55px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.action-card-primary .action-icon {
    background: var(--color-info-bg);
    color: var(--color-primary);
}

.action-card-blue .action-icon {
    background: #E3F2FD;
    color: #2196F3;
}

.action-card-purple .action-icon {
    background: #F3E5F5;
    color: #9C27B0;
}

.action-card-orange .action-icon {
    background: #FFF3E0;
    color: #FF9800;
}

.action-content {
    flex: 1;
}

.action-content h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.action-content p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

.action-arrow {
    font-size: 1.2rem;
    color: var(--color-text-light);
    transition: var(--transition-base);
}

.action-card:hover .action-arrow {
    transform: translateX(5px);
    color: var(--color-primary);
}

/* Recent Documents List */
.recent-docs-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.recent-doc-card {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    text-decoration: none;
    color: var(--color-text-primary);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    border: 1px solid var(--color-border-light);
}

.recent-doc-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.doc-status-indicator {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.doc-status-indicator.status-completed {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.doc-status-indicator.status-in-progress {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.doc-details {
    flex: 1;
}

.doc-details h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.doc-meta-info {
    display: flex;
    gap: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    flex-wrap: wrap;
}

.doc-meta-info span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.doc-status-badge {
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--border-radius-xl);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    flex-shrink: 0;
}

.doc-status-badge.badge-completed {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.doc-status-badge.badge-in-progress {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

/* Mobile Responsive for Dashboard */
@media (max-width: 480px) {
    .hero-section {
        padding: var(--spacing-2xl) var(--spacing-lg);
        border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
    }
    
    .hero-welcome h1 {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .hero-date {
        font-size: 0.9rem;
    }
    
    .stats-grid-modern {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .stat-card {
        padding: var(--spacing-lg);
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .stat-info .stat-value {
        font-size: 1.5rem;
    }
    
    .action-cards-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .action-card {
        padding: var(--spacing-lg);
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .section-header h2 {
        font-size: var(--font-size-lg);
    }
    
    .recent-doc-card {
        flex-wrap: wrap;
        padding: var(--spacing-lg);
    }
    
    .doc-status-badge {
        width: 100%;
        text-align: center;
    }
}

/* Tablet */
@media (min-width: 481px) and (max-width: 768px) {
    .stats-grid-modern {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .action-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}