/* 
 * Magnolia Health - Controlled Substance Inventory System
 * Professional Medical UI Stylesheet
 */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Primary Colors - Magnolia Health Brand */
    --primary: #06325a;
    --primary-dark: #042342;
    --primary-light: #0a4a7f;
    
    /* Accent Colors */
    --accent: #4a9b8c;
    --accent-light: #6bb5a6;
    
    /* Status Colors */
    --success: #2d7a4f;
    --warning: #c4841d;
    --danger: #b53d3d;
    --info: #2d6a9f;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f1f3f5;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Schedule Colors */
    --schedule-ii: #b53d3d;
    --schedule-iii: #c4841d;
    --schedule-iv: #2d6a9f;
    --schedule-v: #2d7a4f;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

/* ==================== LAYOUT ==================== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 260px;
    background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sidebar-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: contain;
    background: var(--white);
    padding: 2px;
}

.sidebar-logo-placeholder {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-logo-placeholder svg {
    width: 32px;
    height: 32px;
}

.sidebar-logo svg {
    width: 32px;
    height: 32px;
}

.sidebar-logo h1 {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.sidebar-logo span {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.8;
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-md) 0;
}

.nav-section {
    margin-bottom: var(--spacing-md);
}

.nav-section-title {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.5);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

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

.nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border-left-color: var(--accent);
}

.nav-link svg {
    width: 18px;
    height: 18px;
    opacity: 0.8;
}

.nav-link .badge {
    margin-left: auto;
    background: var(--danger);
    color: var(--white);
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
}

.sidebar-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-details {
    flex: 1;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 500;
}

.user-role {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* Main Content Area */
.main-content {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Top Header */
.top-header {
    background: var(--white);
    padding: var(--spacing-md) var(--spacing-xl);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
}

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

/* Content Area */
.content-area {
    padding: var(--spacing-xl);
    flex: 1;
}

/* ==================== CARDS ==================== */
.card {
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

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

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* ==================== STATISTICS CARDS ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.stat-icon.primary {
    background: rgba(6, 50, 90, 0.1);
    color: var(--primary);
}

.stat-icon.success {
    background: rgba(45, 122, 79, 0.1);
    color: var(--success);
}

.stat-icon.warning {
    background: rgba(196, 132, 29, 0.1);
    color: var(--warning);
}

.stat-icon.danger {
    background: rgba(181, 61, 61, 0.1);
    color: var(--danger);
}

.stat-icon.info {
    background: rgba(45, 106, 159, 0.1);
    color: var(--info);
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: var(--spacing-xs);
}

/* ==================== TABLES ==================== */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: var(--gray-50);
}

th {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--gray-600);
    border-bottom: 2px solid var(--gray-200);
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.9rem;
}

tbody tr:hover {
    background: var(--gray-50);
}

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

/* Schedule badges in tables */
.schedule-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.schedule-badge.schedule-ii {
    background: rgba(181, 61, 61, 0.1);
    color: var(--schedule-ii);
}

.schedule-badge.schedule-iii {
    background: rgba(196, 132, 29, 0.1);
    color: var(--schedule-iii);
}

.schedule-badge.schedule-iv {
    background: rgba(45, 106, 159, 0.1);
    color: var(--schedule-iv);
}

.schedule-badge.schedule-v {
    background: rgba(45, 122, 79, 0.1);
    color: var(--schedule-v);
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-xs);
}

.form-label.required::after {
    content: " *";
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    font-family: inherit;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: var(--white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 77, 107, 0.15);
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-control:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
}

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

select.form-control {
    cursor: pointer;
}

.form-text {
    font-size: 0.8rem;
    color: var(--gray-600);
    margin-top: var(--spacing-xs);
}

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

/* File Input */
.file-input-wrapper {
    position: relative;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-input-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    background: var(--gray-50);
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-input-wrapper:hover .file-input-label {
    border-color: var(--primary);
    background: rgba(30, 77, 107, 0.05);
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn svg {
    width: 16px;
    height: 16px;
}

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

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

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

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

.btn-success:hover {
    background: #246840;
    color: var(--white);
}

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

.btn-warning:hover {
    background: #a87018;
    color: var(--white);
}

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

.btn-danger:hover {
    background: #993333;
    color: var(--white);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    background: var(--gray-100);
}

.btn-link {
    background: transparent;
    color: var(--primary);
    padding: var(--spacing-xs);
}

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn-group {
    display: flex;
    gap: var(--spacing-sm);
}

/* ==================== ALERTS ==================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-success {
    background: rgba(45, 122, 79, 0.1);
    color: var(--success);
    border: 1px solid rgba(45, 122, 79, 0.2);
}

.alert-warning {
    background: rgba(196, 132, 29, 0.1);
    color: #8a5a10;
    border: 1px solid rgba(196, 132, 29, 0.2);
}

.alert-danger {
    background: rgba(181, 61, 61, 0.1);
    color: var(--danger);
    border: 1px solid rgba(181, 61, 61, 0.2);
}

.alert-info {
    background: rgba(45, 106, 159, 0.1);
    color: var(--info);
    border: 1px solid rgba(45, 106, 159, 0.2);
}

/* ==================== BADGES ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 12px;
}

.badge-success {
    background: rgba(45, 122, 79, 0.1);
    color: var(--success);
}

.badge-warning {
    background: rgba(196, 132, 29, 0.1);
    color: var(--warning);
}

.badge-danger {
    background: rgba(181, 61, 61, 0.1);
    color: var(--danger);
}

.badge-info {
    background: rgba(45, 106, 159, 0.1);
    color: var(--info);
}

.badge-secondary {
    background: var(--gray-200);
    color: var(--gray-600);
}

/* ==================== MODAL ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--gray-500);
}

.modal-close:hover {
    color: var(--gray-700);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: 60vh;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* ==================== LOGIN PAGE ==================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--accent) 100%);
    padding: var(--spacing-lg);
}

.login-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
}

.login-header {
    padding: var(--spacing-xl);
    text-align: center;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.login-header h1 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.login-body {
    padding: var(--spacing-xl);
}

.login-footer {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    text-align: center;
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ==================== SEARCH & FILTERS ==================== */
.search-bar {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.search-input-wrapper {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.search-input-wrapper svg {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--gray-400);
}

.search-input-wrapper input {
    padding-left: 36px;
}

.filter-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* ==================== DASHBOARD SPECIFIC ==================== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-lg);
}

.dashboard-grid > .col-8 {
    grid-column: span 8;
}

.dashboard-grid > .col-4 {
    grid-column: span 4;
}

.dashboard-grid > .col-6 {
    grid-column: span 6;
}

.dashboard-grid > .col-12 {
    grid-column: span 12;
}

@media (max-width: 1024px) {
    .dashboard-grid > .col-8,
    .dashboard-grid > .col-4,
    .dashboard-grid > .col-6 {
        grid-column: span 12;
    }
}

/* Activity List */
.activity-list {
    list-style: none;
}

.activity-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.activity-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-icon svg {
    width: 16px;
    height: 16px;
}

.activity-icon.dispense {
    background: rgba(45, 122, 79, 0.1);
    color: var(--success);
}

.activity-icon.waste {
    background: rgba(196, 132, 29, 0.1);
    color: var(--warning);
}

.activity-icon.receive {
    background: rgba(45, 106, 159, 0.1);
    color: var(--info);
}

.activity-icon.adjust {
    background: rgba(181, 61, 61, 0.1);
    color: var(--danger);
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-800);
}

.activity-meta {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 2px;
}

/* Alert Banner */
.alert-banner {
    background: var(--danger);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
}

.alert-banner svg {
    width: 18px;
    height: 18px;
}

/* ==================== INVENTORY SPECIFIC ==================== */
.inventory-section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.section-title h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.section-title .schedule-indicator {
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.section-title .schedule-indicator.schedule-ii {
    background: var(--schedule-ii);
    color: var(--white);
}

.quantity-display {
    font-family: var(--font-mono);
    font-weight: 600;
}

.quantity-low {
    color: var(--danger);
}

.quantity-warning {
    color: var(--warning);
}

.quantity-ok {
    color: var(--success);
}

.expiration-warning {
    color: var(--danger);
    font-weight: 500;
}

.expiration-soon {
    color: var(--warning);
}

/* ==================== PRINT STYLES ==================== */
@media print {
    .sidebar,
    .top-header,
    .btn,
    .no-print {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-area {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
        break-inside: avoid;
    }
    
    .print-header {
        display: block !important;
        text-align: center;
        margin-bottom: var(--spacing-xl);
    }
    
    .print-header h1 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .print-header p {
        font-size: 0.875rem;
        color: var(--gray-600);
    }
    
    .signature-line {
        display: flex;
        gap: var(--spacing-xl);
        margin-top: var(--spacing-xxl);
    }
    
    .signature-block {
        flex: 1;
    }
    
    .signature-block .line {
        border-top: 1px solid var(--gray-800);
        margin-top: var(--spacing-xxl);
        padding-top: var(--spacing-sm);
        font-size: 0.875rem;
    }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-area {
        padding: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .table-container {
        font-size: 0.8rem;
    }
    
    th, td {
        padding: var(--spacing-sm);
    }
}

/* ==================== UTILITIES ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 600; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }
.sr-only { 
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}