/*
 * KORA IMS Modern CSS Framework
 * A React-inspired design system for Flask templates
 */

/* ============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
    /* Colors - Primary Palette */
    --color-primary-50: #ecfdf5;
    --color-primary-100: #d1fae5;
    --color-primary-200: #a7f3d0;
    --color-primary-300: #6ee7b7;
    --color-primary-400: #34d399;
    --color-primary-500: #10b981;
    --color-primary-600: #059669;
    --color-primary-700: #047857;
    --color-primary-800: #065f46;
    --color-primary-900: #064e3b;

    /* Colors - Neutral Palette */
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* Colors - Semantic */
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;

    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);

    /* Border Radius */
    --radius-none: 0;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ============================================
   BASE STYLES
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-gray-50);
    color: var(--color-gray-900);
    line-height: var(--leading-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   MODERN CARD COMPONENT
   ============================================ */
.modern-card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.modern-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.modern-card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--color-gray-100);
    background: linear-gradient(to bottom, white, var(--color-gray-50));
}

.modern-card-header h2,
.modern-card-header h3,
.modern-card-header h4 {
    margin: 0;
    font-weight: 600;
    color: var(--color-gray-900);
    letter-spacing: -0.025em;
}

.modern-card-header p {
    margin: var(--space-1) 0 0;
    color: var(--color-gray-600);
    font-size: var(--text-sm);
}

.modern-card-body {
    padding: var(--space-6);
}

.modern-card-footer {
    padding: var(--space-4) var(--space-6);
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-100);
}

/* Card Variants */
.modern-card.card-hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.modern-card.card-bordered {
    border: 2px solid var(--color-gray-200);
}

.modern-card.card-gradient {
    background: linear-gradient(135deg, white 0%, var(--color-gray-50) 100%);
}

/* ============================================
   STAT CARDS (Dashboard)
   ============================================ */
.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
}

.stat-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-bottom: var(--space-3);
}

.stat-card-icon.icon-primary {
    background: var(--color-primary-100);
    color: var(--color-primary-600);
}

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

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

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

.stat-card-icon.icon-error {
    background: var(--color-error-light);
    color: var(--color-error);
}

.stat-card-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: var(--leading-tight);
}

.stat-card-label {
    font-size: var(--text-xs);
    color: var(--color-gray-600);
    font-weight: 500;
    margin-top: var(--space-1);
}

.stat-card-trend {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    font-weight: 600;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    margin-top: var(--space-3);
}

.stat-card-trend.trend-up {
    background: var(--color-success-light);
    color: var(--color-success);
}

.stat-card-trend.trend-down {
    background: var(--color-error-light);
    color: var(--color-error);
}

/* ============================================
   MODERN TABLE STYLES
   ============================================ */
.modern-table-container {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    overflow: hidden;
}

.modern-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.modern-table thead {
    background: linear-gradient(to bottom, var(--color-gray-50), var(--color-gray-100));
}

.modern-table thead th {
    padding: var(--space-4) var(--space-5);
    text-align: left;
    font-weight: 600;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-700);
    border-bottom: 2px solid var(--color-gray-200);
    white-space: nowrap;
}

.modern-table tbody tr {
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--color-gray-100);
}

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

.modern-table tbody tr:hover {
    background: var(--color-gray-50);
}

.modern-table tbody td {
    padding: var(--space-4) var(--space-5);
    color: var(--color-gray-700);
    vertical-align: middle;
}

.modern-table tbody td:first-child {
    font-weight: 500;
    color: var(--color-gray-900);
}

/* Table Actions */
.table-actions {
    display: flex;
    gap: var(--space-2);
    justify-content: flex-end;
}

.table-action-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--text-sm);
}

.table-action-btn.btn-view {
    background: var(--color-info-light);
    color: var(--color-info);
}

.table-action-btn.btn-edit {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.table-action-btn.btn-delete {
    background: var(--color-error-light);
    color: var(--color-error);
}

.table-action-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* ============================================
   MODERN FORM STYLES
   ============================================ */
.modern-form {
    max-width: 640px;
}

.modern-form-group {
    margin-bottom: var(--space-5);
}

.modern-form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.modern-form-label.required::after {
    content: '*';
    color: var(--color-error);
    margin-left: var(--space-1);
}

.modern-form-input,
.modern-form-select,
.modern-form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    font-family: var(--font-sans);
    color: var(--color-gray-900);
    background: white;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    outline: none;
}

.modern-form-input:hover,
.modern-form-select:hover,
.modern-form-textarea:hover {
    border-color: var(--color-gray-300);
}

.modern-form-input:focus,
.modern-form-select:focus,
.modern-form-textarea:focus {
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 4px var(--color-primary-100);
}

.modern-form-input::placeholder,
.modern-form-textarea::placeholder {
    color: var(--color-gray-400);
}

.modern-form-input.is-invalid,
.modern-form-select.is-invalid,
.modern-form-textarea.is-invalid {
    border-color: var(--color-error);
    box-shadow: 0 0 0 4px var(--color-error-light);
}

.modern-form-helper {
    font-size: var(--text-xs);
    color: #444;
    margin-top: var(--space-1);
}

.modern-form-error {
    font-size: var(--text-xs);
    color: var(--color-error);
    margin-top: var(--space-1);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* Input Group */
.modern-input-group {
    position: relative;
    display: flex;
}

.modern-input-group .modern-form-input {
    padding-left: 2.75rem;
}

.modern-input-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
    font-size: var(--text-base);
    pointer-events: none;
}

/* Checkbox & Radio */
.modern-checkbox,
.modern-radio {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    user-select: none;
}

.modern-checkbox input,
.modern-radio input {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary-500);
    cursor: pointer;
}

/* ============================================
   MODERN BUTTON STYLES
   ============================================ */
.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 600;
    font-family: var(--font-sans);
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn-modern:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Button Sizes */
.btn-modern.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    border-radius: var(--radius-md);
}

.btn-modern.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

/* Button Variants */
.btn-modern.btn-primary {
    background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-600) 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-modern.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-modern.btn-secondary {
    background: var(--color-gray-100);
    color: #000;
    border: 1px solid var(--color-gray-200);
}

.btn-modern.btn-secondary:hover {
    background: var(--color-gray-200);
    color: #000;
}

.btn-modern.btn-outline {
    background: transparent;
    color: var(--color-primary-600);
    border: 2px solid var(--color-primary-500);
}

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

.btn-modern.btn-danger {
    background: linear-gradient(135deg, var(--color-error) 0%, #dc2626 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.btn-modern.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    transform: translateY(-2px);
}

.btn-modern.btn-warning {
    background: linear-gradient(135deg, var(--color-warning) 0%, #d97706 100%);
    color: white;
}

.btn-modern.btn-info {
    background: linear-gradient(135deg, var(--color-info) 0%, #2563eb 100%);
    color: white;
}

.btn-modern.btn-ghost {
    background: transparent;
    color: #333;
}

.btn-modern.btn-ghost:hover {
    background: var(--color-gray-100);
    color: #000;
}

/* Icon-only Button */
.btn-modern.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
}

.btn-modern.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

/* ============================================
   BADGES & STATUS INDICATORS
   ============================================ */
.modern-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.modern-badge.badge-primary {
    background: var(--color-primary-100);
    color: var(--color-primary-700);
}

.modern-badge.badge-success {
    background: var(--color-success-light);
    color: #065f46;
}

.modern-badge.badge-warning {
    background: var(--color-warning-light);
    color: #92400e;
}

.modern-badge.badge-danger {
    background: var(--color-error-light);
    color: #991b1b;
}

.modern-badge.badge-info {
    background: var(--color-info-light);
    color: #1e40af;
}

.modern-badge.badge-gray {
    background: var(--color-gray-100);
    color: #000;
}

/* Status Dot */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.dot-success {
    background: var(--color-success);
    box-shadow: 0 0 8px var(--color-success);
}

.status-dot.dot-warning {
    background: var(--color-warning);
}

.status-dot.dot-danger {
    background: var(--color-error);
}

.status-dot.dot-info {
    background: var(--color-info);
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
    margin-bottom: var(--space-8);
}

.page-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.page-header h1 {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    letter-spacing: -0.025em;
    margin: 0;
}

.page-header p {
    color: #333;
    font-size: var(--text-sm);
    margin: var(--space-1) 0 0;
}

.page-header-actions {
    display: flex;
    gap: var(--space-3);
}

/* Breadcrumb */
.modern-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: #333;
    margin-bottom: var(--space-4);
}

.modern-breadcrumb a {
    color: #333;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.modern-breadcrumb a:hover {
    color: var(--color-primary-600);
}

.modern-breadcrumb .separator {
    color: #666;
}

.modern-breadcrumb .current {
    color: var(--color-gray-900);
    font-weight: 500;
}

/* ============================================
   EMPTY STATES
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-8);
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    font-size: 2rem;
}

.empty-state h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-gray-900);
    margin: 0 0 var(--space-2);
}

.empty-state p {
    color: #333;
    margin: 0 0 var(--space-6);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   SEARCH & FILTER BAR
   ============================================ */
.search-filter-bar {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: var(--space-3) var(--space-4) var(--space-3) 2.75rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.search-box input:focus {
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 4px var(--color-primary-100);
    outline: none;
}

.search-box .search-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
}

.filter-buttons {
    display: flex;
    gap: var(--space-2);
}

/* ============================================
   AVATAR
   ============================================ */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary-400) 0%, var(--color-primary-600) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: var(--text-sm);
}

.avatar.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: var(--text-xs);
}

.avatar.avatar-lg {
    width: 56px;
    height: 56px;
    font-size: var(--text-lg);
}

.avatar.avatar-xl {
    width: 80px;
    height: 80px;
    font-size: var(--text-2xl);
}

/* Avatar Color Variants */
.avatar-0 {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.avatar-1 {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.avatar-2 {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.avatar-3 {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.avatar-4 {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
}

/* ============================================
   DETAIL VIEW
   ============================================ */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
}

.detail-item {
    padding: var(--space-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.detail-item-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #333;
    margin-bottom: var(--space-1);
}

.detail-item-value {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-gray-900);
}

/* ============================================
   LOADING STATES
   ============================================ */
.skeleton {
    background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary-500);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   MODAL STYLES
   ============================================ */
.modern-modal .modal-content {
    border: none;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
}

.modern-modal .modal-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--color-gray-100);
}

.modern-modal .modal-title {
    font-weight: 600;
    color: var(--color-gray-900);
}

.modern-modal .modal-body {
    padding: var(--space-6);
}

.modern-modal .modal-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-gray-100);
    background: var(--color-gray-50);
}

/* ============================================
   TABS
   ============================================ */
.modern-tabs {
    display: flex;
    gap: var(--space-1);
    border-bottom: 2px solid var(--color-gray-100);
    margin-bottom: var(--space-6);
}

.modern-tab {
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 500;
    color: #333;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-fast);
}

.modern-tab:hover {
    color: var(--color-gray-900);
}

.modern-tab.active {
    color: var(--color-primary-600);
}

.modern-tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-primary-500);
}

/* ============================================
   RESPONSIVE GRID LAYOUTS
   ============================================ */
.grid-cols-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.grid-cols-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.grid-cols-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

@media (max-width: 1200px) {
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   AUTH PAGES
   ============================================ */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-800) 100%);
    padding: var(--space-8);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
}

.auth-header {
    padding: var(--space-8) var(--space-8) var(--space-6);
    text-align: center;
}

.auth-logo {
    height: 60px;
    margin-bottom: var(--space-4);
}

.auth-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0 0 var(--space-2);
}

.auth-subtitle {
    color: #333;
    font-size: var(--text-sm);
    margin: 0;
}

.auth-body {
    padding: 0 var(--space-8) var(--space-8);
}

.auth-footer {
    padding: var(--space-6) var(--space-8);
    background: var(--color-gray-50);
    text-align: center;
    border-top: 1px solid var(--color-gray-100);
}

/* ============================================
   TOOLTIPS
   ============================================ */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-3);
    background: var(--color-gray-900);
    color: white;
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    margin-bottom: var(--space-2);
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

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

.text-primary { color: var(--color-primary-600); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-error); }
.text-muted { color: #444; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

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

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }

    .modern-card {
        box-shadow: none;
        border: 1px solid var(--color-gray-300);
    }
}

/* Fix for select dropdowns in modals */
.modern-form-select {
    position: relative;
    z-index: 1;
}

.modal .modern-form-select {
    z-index: 1060; /* Higher than Bootstrap modal z-index (1055) */
}

/* Ensure select options appear above modal backdrop */
select.modern-form-select {
    background-image: none; /* Remove default arrow if any */
}

select.modern-form-select option {
    background-color: white;
    color: var(--color-gray-900);
}