/* ==========================================================================
   Supplier Document Management System
   Bureau of Statistics — Procurement Unit
   
   Design: Official Government Aesthetic
   - Color Palette: Deep forest green, gold accents, warm neutrals
   - Typography: Source Serif 4 for headings, DM Sans for body
   - Style: Professional, trustworthy, functional
   ========================================================================== */

/* CSS Custom Properties */
:root {
    /* Primary Colors */
    --color-primary: #1a472a;
    --color-primary-light: #2d5a3a;
    --color-primary-dark: #0f2d1a;
    --color-primary-fade: rgba(26, 71, 42, 0.1);
    
    /* Accent Colors */
    --color-accent: #c9a227;
    --color-accent-light: #e6c452;
    --color-accent-dark: #9a7c1c;
    
    /* Status Colors */
    --color-success: #2e7d32;
    --color-success-light: #e8f5e9;
    --color-warning: #ed6c02;
    --color-warning-light: #fff4e5;
    --color-error: #c62828;
    --color-error-light: #ffebee;
    
    /* Neutrals */
    --color-bg: #faf8f5;
    --color-bg-secondary: #f5f2ed;
    --color-bg-tertiary: #ebe7e0;
    --color-surface: #ffffff;
    --color-surface-elevated: #ffffff;
    --color-border: #d4cfc5;
    --color-border-light: #e8e4dc;
    
    /* Text Colors */
    --color-text: #1a1a18;
    --color-text-secondary: #4a4a45;
    --color-text-muted: #7a7a72;
    --color-text-inverse: #ffffff;
    
    /* Typography */
    --font-display: 'Source Serif 4', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(26, 26, 24, 0.05);
    --shadow-md: 0 4px 12px rgba(26, 26, 24, 0.08);
    --shadow-lg: 0 8px 24px rgba(26, 26, 24, 0.12);
    --shadow-xl: 0 16px 48px rgba(26, 26, 24, 0.16);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.3;
    margin: 0;
}

p {
    margin: 0 0 var(--space-md);
}

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

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

/* Utility Classes */
.hidden {
    display: none !important;
}

.required {
    color: var(--color-error);
}

/* ==========================================================================
   Authentication Modal
   ========================================================================== */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(15, 45, 26, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    padding: var(--space-lg);
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp var(--transition-base);
}

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

.auth-modal-content {
    max-width: 420px;
    padding: var(--space-2xl);
    text-align: center;
}

.auth-header {
    margin-bottom: var(--space-xl);
}

.gov-seal {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    color: var(--color-accent);
}

.seal-icon {
    width: 100%;
    height: 100%;
}

.auth-header h2 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.auth-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

#auth-form {
    text-align: left;
}

.auth-footer {
    margin: var(--space-xl) 0 0;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Form Elements
   ========================================================================== */
.form-group {
    margin-bottom: var(--space-lg);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--color-text);
    background-color: var(--color-bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    background-color: var(--color-surface);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-fade);
}

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

.form-row {
    margin-bottom: var(--space-lg);
}

.form-row.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

@media (max-width: 600px) {
    .form-row.two-col {
        grid-template-columns: 1fr;
    }
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-icon,
.btn-icon-left {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

.btn-secondary:hover {
    background-color: var(--color-border);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    padding: calc(var(--space-md) - 2px) calc(var(--space-lg) - 2px);
}

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

.btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
    padding: var(--space-sm);
}

.btn-ghost:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

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

.btn-danger:hover {
    background-color: #b71c1c;
}

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.8125rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   App Container & Header
   ========================================================================== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-xl);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.logo-container {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
}

.logo-icon {
    width: 100%;
    height: 100%;
}

.header-title h1 {
    font-size: 1.25rem;
    color: var(--color-primary);
}

.header-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

@media (max-width: 768px) {
    .app-header {
        padding: var(--space-md);
        flex-wrap: wrap;
        gap: var(--space-md);
    }
    
    .header-title h1 {
        font-size: 1rem;
    }
    
    .header-right {
        width: 100%;
        justify-content: flex-end;
    }
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    overflow-y: auto;
}

.search-container {
    position: relative;
}

.search-icon {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--color-text-muted);
}

.search-container input {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-md) calc(var(--space-md) * 3);
    font-family: var(--font-body);
    font-size: 0.875rem;
    background-color: var(--color-bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.search-container input:focus {
    outline: none;
    background-color: var(--color-surface);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-fade);
}

.filter-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.filter-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

/* Category Filters */
.category-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.category-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.category-item:hover {
    background-color: var(--color-bg-secondary);
}

.category-item.active {
    background-color: var(--color-primary-fade);
}

.category-item input {
    display: none;
}

.category-radio {
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.category-item input:checked + .category-radio {
    border-color: var(--color-primary);
}

.category-item input:checked + .category-radio::after {
    content: '';
    position: absolute;
    inset: 3px;
    background-color: var(--color-primary);
    border-radius: 50%;
}

.category-name {
    flex: 1;
    font-size: 0.875rem;
}

.category-count {
    font-size: 0.75rem;
    padding: 2px 8px;
    background-color: var(--color-bg-tertiary);
    border-radius: 10px;
    color: var(--color-text-muted);
}

/* Status Filters */
.status-filters {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.status-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.status-item input {
    display: none;
}

.status-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    position: relative;
    transition: all var(--transition-fast);
}

.status-item input:checked + .status-checkbox {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.status-item input:checked + .status-checkbox::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.status-name {
    font-size: 0.875rem;
}

/* Sidebar Stats */
.sidebar-stats {
    margin-top: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.stat-card {
    background-color: var(--color-bg-secondary);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-md);
    }
    
    .sidebar-stats {
        margin-top: var(--space-lg);
    }
}

/* ==========================================================================
   Supplier Grid
   ========================================================================== */
.supplier-grid {
    flex: 1;
    padding: var(--space-xl);
    overflow-y: auto;
}

.grid-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
}

.grid-header h2 {
    font-size: 1.25rem;
    color: var(--color-text);
}

.view-toggle {
    display: flex;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    padding: 4px;
}

.view-btn {
    padding: var(--space-sm);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.view-btn svg {
    width: 20px;
    height: 20px;
    display: block;
}

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

/* Suppliers Container - Grid View */
.suppliers-container {
    display: grid;
    gap: var(--space-lg);
}

.suppliers-container.grid-view {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

.suppliers-container.list-view {
    grid-template-columns: 1fr;
}

/* Supplier Card */
.supplier-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.supplier-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.supplier-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.supplier-name {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.3;
}

.compliance-badge {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

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

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

.compliance-badge svg {
    width: 12px;
    height: 12px;
}

.supplier-category {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 4px 10px;
    background-color: var(--color-bg-secondary);
    border-radius: 10px;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.supplier-category svg {
    width: 12px;
    height: 12px;
}

.supplier-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.supplier-meta-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.supplier-meta-item svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-text-muted);
}

.supplier-documents {
    display: flex;
    gap: var(--space-xs);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
}

.doc-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-border);
}

.doc-indicator.uploaded {
    background-color: var(--color-success);
}

/* List View Adjustments */
.suppliers-container.list-view .supplier-card {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: var(--space-xl);
    padding: var(--space-md) var(--space-lg);
}

.suppliers-container.list-view .supplier-card-header {
    margin-bottom: 0;
}

.suppliers-container.list-view .supplier-category {
    margin-bottom: 0;
}

.suppliers-container.list-view .supplier-meta {
    display: none;
}

.suppliers-container.list-view .supplier-documents {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
    text-align: center;
}

.empty-icon {
    width: 120px;
    height: 120px;
    color: var(--color-border);
    margin-bottom: var(--space-xl);
}

.empty-state h3 {
    font-size: 1.25rem;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: var(--space-md);
}

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

/* ==========================================================================
   Supplier Modal
   ========================================================================== */
.supplier-modal-content {
    max-width: 640px;
    padding: 0;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--color-border-light);
}

.modal-header h2 {
    font-size: 1.25rem;
    color: var(--color-primary);
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.supplier-form {
    padding: var(--space-xl);
}

.form-section {
    margin-bottom: var(--space-xl);
}

.form-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border-light);
}

/* Document Uploads */
.document-uploads {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.document-upload-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    gap: var(--space-md);
}

.doc-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex: 1;
    min-width: 0;
}

.doc-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.doc-details {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.doc-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.doc-status {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.doc-status.uploaded {
    color: var(--color-success);
}

.doc-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.file-input {
    display: none;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
}

/* ==========================================================================
   Supplier Detail Modal
   ========================================================================== */
.detail-modal-content {
    max-width: 600px;
    padding: 0;
}

.detail-content {
    padding: var(--space-xl);
}

.detail-section {
    margin-bottom: var(--space-xl);
}

.detail-section:last-child {
    margin-bottom: 0;
}

.detail-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: var(--space-md);
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.detail-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.detail-value {
    font-size: 0.9375rem;
    color: var(--color-text);
}

/* Documents Grid in Detail */
.documents-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.document-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.document-card.uploaded {
    cursor: pointer;
}

.document-card.uploaded:hover {
    background-color: var(--color-bg-tertiary);
}

.document-card .doc-icon {
    width: 32px;
    height: 32px;
}

.document-card.uploaded .doc-icon {
    color: var(--color-success);
}

.document-card.missing .doc-icon {
    color: var(--color-text-muted);
}

.document-card .doc-details {
    flex: 1;
}

.document-card .doc-label {
    font-size: 0.8125rem;
}

.document-card .doc-status {
    font-size: 0.6875rem;
}

.document-card .doc-status.uploaded {
    color: var(--color-success);
}

.document-card .doc-status.missing {
    color: var(--color-warning);
}

.detail-actions {
    display: flex;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-bg-secondary);
}

/* ==========================================================================
   Category Modal
   ========================================================================== */
.category-modal-content {
    max-width: 480px;
    padding: 0;
}

.category-form-container {
    padding: var(--space-xl);
    border-bottom: 1px solid var(--color-border-light);
}

.category-add-form {
    display: flex;
    gap: var(--space-md);
}

.category-add-form input {
    flex: 1;
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    background-color: var(--color-bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.category-add-form input:focus {
    outline: none;
    background-color: var(--color-surface);
    border-color: var(--color-primary);
}

.category-list-container {
    padding: var(--space-xl);
    max-height: 400px;
    overflow-y: auto;
}

.category-list-container h3 {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.category-manage-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.category-manage-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.category-manage-name {
    font-size: 0.9375rem;
    color: var(--color-text);
}

.category-manage-count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-left: var(--space-sm);
}

.category-delete-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.category-delete-btn:hover {
    background-color: var(--color-error-light);
    color: var(--color-error);
}

.category-delete-btn svg {
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: 2000;
    animation: slideInRight var(--transition-base);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--color-success);
}

.toast.error .toast-content {
    border-left-color: var(--color-error);
}

.toast-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.toast-success {
    color: var(--color-success);
}

.toast-error {
    color: var(--color-error);
}

.toast-message {
    font-size: 0.9375rem;
    color: var(--color-text);
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */
@media (max-width: 640px) {
    .supplier-grid {
        padding: var(--space-md);
    }
    
    .suppliers-container.grid-view {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: var(--space-md);
        border-radius: var(--radius-lg);
    }
    
    .supplier-form,
    .detail-content {
        padding: var(--space-md);
    }
    
    .detail-grid,
    .documents-grid {
        grid-template-columns: 1fr;
    }
    
    .detail-actions {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .detail-actions .btn {
        width: 100%;
    }
    
    .toast {
        left: var(--space-md);
        right: var(--space-md);
        bottom: var(--space-md);
    }
}

/* Print Styles */
@media print {
    .app-header,
    .sidebar,
    .modal {
        display: none !important;
    }
    
    .supplier-grid {
        padding: 0;
    }
    
    .supplier-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* ==================== Document View/Download Buttons ==================== */
.doc-actions-row {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.doc-view-btn,
.doc-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
}

.doc-view-btn svg,
.doc-download-btn svg {
    flex-shrink: 0;
}

.doc-filename {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    word-break: break-all;
    margin-top: 0.125rem;
}

.doc-existing-btns {
    display: inline-flex;
    gap: 0.25rem;
    margin-left: 0.5rem;
}

.doc-existing-btns .btn {
    padding: 0.25rem;
}

.doc-existing-btns svg {
    width: 16px;
    height: 16px;
}

/* Document card improvements */
.document-card.uploaded {
    cursor: default;
}

.document-card .doc-details {
    flex: 1;
}

/* Category checkboxes for multi-select */
.category-checkboxes {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 200px;
    overflow-y: auto;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 0.375rem;
    background: var(--color-surface);
}

.category-checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.category-checkbox-item input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

.category-checkbox-item span {
    font-size: 0.875rem;
}

.category-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.category-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: 9999px;
}