/* ==========================================
   MODERN PORTAL CSS FRAMEWORK
   Clean, Professional, Kendo UI Compatible
   ASP.NET MVC 4.6 + Kendo UI 2022.3
   ======================================== */

/* === ROOT VARIABLES === */
:root {
    /* Color Palette */
    --primary-color: #0078d4;
    --primary-hover: #106ebe;
    --primary-dark: #005a9e;
    --primary-light: #e3f2fd;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --success-hover: #218838;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --danger-hover: #c82333;
    --info-color: #17a2b8;
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #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;
    --dark: #1a1a1a;
    --border-color: #dee2e6;
    --text-color: #495057;
    --dark-text: #212529;
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-xxl: 20px;
    --font-size-h1: 32px;
    --font-size-h2: 28px;
    --font-size-h3: 24px;
    --font-size-h4: 20px;
    --font-size-h5: 18px;
    --font-size-h6: 16px;
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-round: 50%;
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.18);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.2);
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    /* Layout */
    --container-max-width: 1200px;
    --sidebar-width: 260px;
    --header-height: 60px;
}

/* === GLOBAL RESET === */
*, *::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-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--light-gray);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-h1);
}

h2 {
    font-size: var(--font-size-h2);
}

h3 {
    font-size: var(--font-size-h3);
}

h4 {
    font-size: var(--font-size-h4);
}

h5 {
    font-size: var(--font-size-h5);
}

h6 {
    font-size: var(--font-size-h6);
}

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

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

    a:hover {
        color: var(--primary-hover);
        text-decoration: underline;
    }

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

.portal-container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

/* === HEADER === */
.portal-header {
    background: var(--white);
    height: var(--header-height);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.portal-header-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-right: var(--spacing-xl);
}

.portal-header-nav {
    display: flex;
    gap: var(--spacing-lg);
    flex: 1;
}

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

/* === SIDEBAR === */
.portal-layout {
    display: flex;
    min-height: calc(100vh - var(--header-height));
}

.portal-sidebar {
    width: var(--sidebar-width);
    background: var(--white);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.portal-sidebar-nav {
    list-style: none;
}

.portal-sidebar-nav-item {
    margin-bottom: var(--spacing-xs);
}

.portal-sidebar-nav-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

    .portal-sidebar-nav-link:hover {
        background: var(--gray-100);
        color: var(--primary-color);
        text-decoration: none;
    }

    .portal-sidebar-nav-link.active {
        background: var(--primary-color);
        color: var(--white);
    }

/* === MAIN CONTENT === */
.portal-main {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-x: hidden;
}

/* === CARDS === */
.portal-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: box-shadow var(--transition-base);
    border: 1px solid var(--border-color);
}

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

.portal-card-header {
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.portal-card-title {
    font-size: var(--font-size-h4);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.portal-card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-top: var(--spacing-xs);
}

.portal-card-body {
    padding: 0;
}

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

/* Card with Accent Border */
.portal-card-accent {
    border-left: 4px solid var(--primary-color);
}

.portal-card-accent-success {
    border-left: 4px solid var(--success-color);
}

.portal-card-accent-danger {
    border-left: 4px solid var(--danger-color);
}

/* === BUTTONS === */
.portal-btn,
.k-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    gap: var(--spacing-xs);
    line-height: 1.5;
}

    .portal-btn:disabled,
    .k-button:disabled {
        opacity: 0.6;
        cursor: not-allowed;
    }

    .portal-btn-primary,
    .k-button.k-primary {
        background: var(--primary-color);
        color: var(--white);
    }

        .portal-btn-primary:hover:not(:disabled),
        .k-button.k-primary:hover:not(:disabled) {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
            text-decoration: none;
        }

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

        .portal-btn-secondary:hover:not(:disabled),
        .k-button.k-secondary:hover:not(:disabled) {
            background: var(--gray-300);
        }

    .portal-btn-success,
    .k-button.k-success {
        background: var(--success-color);
        color: var(--white);
    }

        .portal-btn-success:hover:not(:disabled),
        .k-button.k-success:hover:not(:disabled) {
            background: var(--success-hover);
            transform: translateY(-1px);
        }

    .portal-btn-danger,
    .k-button.k-danger {
        background: var(--danger-color);
        color: var(--white);
    }

        .portal-btn-danger:hover:not(:disabled),
        .k-button.k-danger:hover:not(:disabled) {
            background: var(--danger-hover);
            transform: translateY(-1px);
        }

.portal-btn-outline,
.k-button-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

    .portal-btn-outline:hover:not(:disabled),
    .k-button-outline:hover:not(:disabled) {
        background: var(--primary-color);
        color: var(--white);
    }

.portal-btn-sm,
.k-button.k-button-sm {
    padding: 6px 12px;
    font-size: var(--font-size-sm);
}

.portal-btn-lg,
.k-button.k-button-lg {
    padding: 12px 24px;
    font-size: var(--font-size-lg);
}

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

    .portal-label,
    .k-form-label,
    .form-group label {
        display: block;
        margin-bottom: var(--spacing-xs);
        font-weight: 600;
        color: var(--dark-text);
        font-size: var(--font-size-base);
    }

.portal-label-required::after {
    content: '*';
    color: var(--danger-color);
    margin-left: 4px;
}

.portal-input,
.portal-select,
.portal-textarea,
.k-textbox,
.k-input,
.k-dropdown,
.k-datepicker,
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    /*padding: var(--spacing-sm) var(--spacing-md);*/
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: var(--white);
}

    .portal-input:focus,
    .portal-select:focus,
    .portal-textarea:focus,
    .k-textbox:focus,
    .k-input:focus,
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
    }

    .portal-input:disabled,
    .portal-select:disabled,
    .portal-textarea:disabled,
    .k-textbox:disabled,
    .k-input:disabled {
        background: var(--gray-100);
        cursor: not-allowed;
        opacity: 0.7;
    }

    .k-input::placeholder {
        color: lightgray;
    }
    

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

.portal-form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.portal-form-error {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--danger-color);
}

/* Form Row */
.form-row {
    display: flex;
    gap: var(--spacing-md);
}

    .form-row .portal-form-group,
    .form-row .k-form-group,
    .form-row .form-group {
        flex: 1;
    }

/* === MODALS === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1050;
    padding: var(--spacing-md);
}

.modal-content {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

    .modal-content h3 {
        margin-bottom: var(--spacing-lg);
        color: var(--dark-text);
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }

/* === KENDO UI INTEGRATION === */
.portal-kendo-wrapper {
    margin-bottom: var(--spacing-lg);
}

/* Enhance Kendo Grid */
.k-grid {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border-color: var(--gray-300);
}

.k-grid-header {
    background: var(--gray-100);
    font-weight: 600;
    color: var(--gray-800);
}

    .k-grid-header .k-header {
        border-color: var(--gray-300);
        padding: var(--spacing-md);
    }

.k-grid td {
    padding: var(--spacing-md);
    border-color: var(--gray-200);
}

.k-grid tr:hover {
    background: var(--gray-100);
}

.k-grid .k-alt {
    background: var(--white);
}

/* Enhance Kendo Window */
.k-window {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: none;
}

.k-window-titlebar {
    background: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: var(--spacing-md) var(--spacing-lg);
}

.k-window-content {
    padding: var(--spacing-lg);
}

/* Kendo Notification */
.k-notification-success {
    background-color: #d4edda;
    color: #155724;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    border: 1px solid #c3e6cb;
    box-shadow: var(--shadow-md);
}

.k-notification-error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    border: 1px solid #f5c6cb;
    box-shadow: var(--shadow-md);
}

.k-notification-warning {
    background-color: #fff3cd;
    color: #856404;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    border: 1px solid #ffeaa7;
    box-shadow: var(--shadow-md);
}

.k-notification-info {
    background-color: #d1ecf1;
    color: #0c5460;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    border: 1px solid #bee5eb;
    box-shadow: var(--shadow-md);
}

/* === TABLES === */
.portal-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

    .portal-table thead {
        background: var(--gray-100);
    }

    .portal-table th {
        padding: var(--spacing-md);
        text-align: left;
        font-weight: 600;
        color: var(--gray-800);
        border-bottom: 2px solid var(--gray-300);
    }

    .portal-table td {
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--gray-200);
    }

    .portal-table tbody tr:hover {
        background: var(--gray-100);
    }

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

/* === BADGES === */
.portal-badge,
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-sm);
    line-height: 1;
}

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

.portal-badge-success,
.badge-success {
    background: var(--success-color);
    color: var(--white);
}

.portal-badge-warning,
.badge-warning {
    background: var(--warning-color);
    color: var(--gray-900);
}

.portal-badge-danger,
.badge-danger {
    background: var(--danger-color);
    color: var(--white);
}

.portal-badge-info,
.badge-info {
    background: var(--info-color);
    color: var(--white);
}

.portal-badge-secondary,
.badge-secondary {
    background: var(--gray-400);
    color: var(--white);
}

/* === ALERTS === */
.portal-alert,
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.portal-alert-success,
.alert-success {
    background: #d4edda;
    border-color: var(--success-color);
    color: #155724;
}

.portal-alert-warning,
.alert-warning {
    background: #fff3cd;
    border-color: var(--warning-color);
    color: #856404;
}

.portal-alert-danger,
.alert-danger {
    background: #f8d7da;
    border-color: var(--danger-color);
    color: #721c24;
}

.portal-alert-info,
.alert-info {
    background: #d1ecf1;
    border-color: var(--info-color);
    color: #0c5460;
}

/* === LOADING SPINNER === */
.portal-spinner {
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-round);
    width: 40px;
    height: 40px;
    animation: portal-spin 0.8s linear infinite;
}

.portal-spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

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

/* === TOOLTIPS === */
.portal-tooltip {
    position: relative;
    display: inline-block;
}

    .portal-tooltip .portal-tooltip-text {
        visibility: hidden;
        background-color: var(--gray-900);
        color: var(--white);
        text-align: center;
        padding: var(--spacing-xs) var(--spacing-sm);
        border-radius: var(--radius-sm);
        position: absolute;
        z-index: 1;
        bottom: 125%;
        left: 50%;
        transform: translateX(-50%);
        white-space: nowrap;
        font-size: var(--font-size-sm);
        opacity: 0;
        transition: opacity var(--transition-fast);
    }

    .portal-tooltip:hover .portal-tooltip-text {
        visibility: visible;
        opacity: 1;
    }

/* === PAGINATION === */
.portal-pagination {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-lg);
}

.portal-pagination-item {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--white);
    min-width: 36px;
    text-align: center;
}

    .portal-pagination-item:hover {
        border-color: var(--primary-color);
        color: var(--primary-color);
    }

    .portal-pagination-item.active {
        background: var(--primary-color);
        color: var(--white);
        border-color: var(--primary-color);
    }

/* === BREADCRUMBS === */
.portal-breadcrumb {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-sm);
}

.portal-breadcrumb-item {
    color: var(--gray-600);
}

    .portal-breadcrumb-item a {
        color: var(--primary-color);
    }

    .portal-breadcrumb-item:not(:last-child)::after {
        content: '/';
        margin-left: var(--spacing-sm);
        color: var(--gray-400);
    }

    .portal-breadcrumb-item:last-child {
        color: var(--gray-800);
        font-weight: 500;
    }

/* === TABS === */
.portal-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.portal-tab {
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
    color: var(--gray-600);
    font-weight: 500;
}

    .portal-tab:hover {
        color: var(--primary-color);
        border-bottom-color: var(--primary-light);
    }

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

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

.portal-text-right {
    text-align: right;
}

.portal-text-left {
    text-align: left;
}

.portal-mt-xs {
    margin-top: var(--spacing-xs);
}

.portal-mt-sm {
    margin-top: var(--spacing-sm);
}

.portal-mt-md {
    margin-top: var(--spacing-md);
}

.portal-mt-lg {
    margin-top: var(--spacing-lg);
}

.portal-mt-xl {
    margin-top: var(--spacing-xl);
}

.portal-mb-xs {
    margin-bottom: var(--spacing-xs);
}

.portal-mb-sm {
    margin-bottom: var(--spacing-sm);
}

.portal-mb-md {
    margin-bottom: var(--spacing-md);
}

.portal-mb-lg {
    margin-bottom: var(--spacing-lg);
}

.portal-mb-xl {
    margin-bottom: var(--spacing-xl);
}

.portal-p-xs {
    padding: var(--spacing-xs);
}

.portal-p-sm {
    padding: var(--spacing-sm);
}

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

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

.portal-p-xl {
    padding: var(--spacing-xl);
}

.portal-d-flex {
    display: flex;
}

.portal-d-block {
    display: block;
}

.portal-d-inline {
    display: inline;
}

.portal-d-inline-block {
    display: inline-block;
}

.portal-d-none {
    display: none;
}

.portal-flex-column {
    flex-direction: column;
}

.portal-flex-row {
    flex-direction: row;
}

.portal-justify-start {
    justify-content: flex-start;
}

.portal-justify-center {
    justify-content: center;
}

.portal-justify-end {
    justify-content: flex-end;
}

.portal-justify-between {
    justify-content: space-between;
}

.portal-align-start {
    align-items: flex-start;
}

.portal-align-center {
    align-items: center;
}

.portal-align-end {
    align-items: flex-end;
}

.portal-gap-xs {
    gap: var(--spacing-xs);
}

.portal-gap-sm {
    gap: var(--spacing-sm);
}

.portal-gap-md {
    gap: var(--spacing-md);
}

.portal-gap-lg {
    gap: var(--spacing-lg);
}

.portal-shadow-none {
    box-shadow: none;
}

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

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

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

.portal-text-primary {
    color: var(--primary-color);
}

.portal-text-success {
    color: var(--success-color);
}

.portal-text-danger {
    color: var(--danger-color);
}

.portal-text-warning {
    color: var(--warning-color);
}

.portal-text-muted {
    color: var(--gray-600);
}

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

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

.portal-bg-danger {
    background-color: var(--danger-color);
}

.portal-bg-light {
    background-color: var(--light-gray);
}

.portal-bg-white {
    background-color: var(--white);
}

/* === RESPONSIVE BREAKPOINTS === */

/* Large Screens (≥1200px) - Desktop */
@media (min-width: 1200px) {
    .portal-container {
        max-width: 1140px;
    }
}

/* Medium Screens (992px - 1199px) - Desktop */
@media (min-width: 992px) and (max-width: 1199px) {
    .portal-container {
        max-width: 960px;
    }

    .portal-sidebar {
        width: 220px;
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 24px;
    }

    h3 {
        font-size: 20px;
    }
}

/* Tablet (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .portal-container {
        max-width: 720px;
        padding: 0 var(--spacing-md);
    }

    .portal-layout {
        flex-direction: column;
    }

    .portal-sidebar {
        width: 100%;
        max-width: none;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

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

    .portal-header {
        padding: 0 var(--spacing-md);
    }

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

    h1 {
        font-size: 26px;
    }

    h2 {
        font-size: 22px;
    }

    h3 {
        font-size: 18px;
    }

    /*.portal-btn,
    .k-button {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-sm);
    }*/

    .form-row {
        flex-direction: column;
    }

    .modal-content {
        max-width: 90%;
    }

    .portal-table th,
    .portal-table td {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
}

/* Mobile (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    .portal-container,
    .portal-container-fluid {
        padding: 0 var(--spacing-sm);
    }

    .portal-layout {
        flex-direction: column;
    }

    .portal-sidebar {
        width: 100%;
        padding: var(--spacing-md);
    }

    .portal-main {
        padding: var(--spacing-sm);
    }

    .portal-header {
        height: 50px;
        padding: 0 var(--spacing-sm);
    }

    .portal-header-brand {
        font-size: var(--font-size-lg);
        margin-right: var(--spacing-md);
    }

    .portal-header-nav {
        gap: var(--spacing-sm);
    }

    .portal-card {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }

    .portal-card-header {
        padding-bottom: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }

    .portal-card-title {
        font-size: var(--font-size-lg);
    }

    .portal-card-footer {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

        .portal-card-footer .portal-btn,
        .portal-card-footer .k-button {
            width: 100%;
        }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    h3 {
        font-size: 18px;
    }

    h4 {
        font-size: 16px;
    }

    .portal-btn,
    .k-button {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
        justify-content: center;
    }

        .portal-btn-sm,
        .k-button.k-button-sm {
            padding: 6px 10px;
            font-size: var(--font-size-xs);
        }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .modal-overlay {
        padding: var(--spacing-sm);
    }

    .modal-content {
        padding: var(--spacing-lg);
        max-width: 100%;
    }

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

        .portal-table th,
        .portal-table td {
            padding: var(--spacing-xs);
        }

    .portal-pagination {
        flex-wrap: wrap;
    }

    .portal-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }

    .portal-breadcrumb {
        font-size: var(--font-size-xs);
        flex-wrap: wrap;
    }
}

/* Extra Small Mobile (<480px) */
@media (max-width: 479px) {
    :root {
        --spacing-lg: 16px;
        --spacing-xl: 24px;
    }

    .portal-container,
    .portal-container-fluid {
        padding: 0 var(--spacing-xs);
    }

    .portal-layout {
        flex-direction: column;
    }

    .portal-sidebar {
        width: 100%;
        padding: var(--spacing-sm);
    }

    .portal-main {
        padding: var(--spacing-xs);
    }

    .portal-header {
        height: 48px;
        padding: 0 var(--spacing-xs);
        flex-wrap: wrap;
    }

    .portal-header-brand {
        font-size: var(--font-size-base);
        margin-right: var(--spacing-sm);
    }

    .portal-header-nav {
        display: none;
    }

    .portal-card {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
        border-radius: var(--radius-sm);
    }

    .portal-card-header {
        padding-bottom: var(--spacing-xs);
        margin-bottom: var(--spacing-sm);
    }

    .portal-card-title {
        font-size: var(--font-size-base);
        /*flex-direction: column;*/
        align-items: flex-start;
        /*gap: var(--spacing-xs);*/
    }

    .portal-card-footer {
        flex-direction: column;
        gap: var(--spacing-xs);
        padding-top: var(--spacing-sm);
        margin-top: var(--spacing-sm);
    }

        .portal-card-footer .portal-btn,
        .portal-card-footer .k-button {
            width: 100%;
        }

    h1 {
        font-size: 20px;
    }

    h2 {
        font-size: 18px;
    }

    h3 {
        font-size: 16px;
    }

    h4 {
        font-size: 14px;
    }

    h5 {
        font-size: 13px;
    }

    h6 {
        font-size: 12px;
    }

    /*.portal-btn,
    .k-button {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }*/

    .portal-form-group,
    .k-form-group,
    .form-group {
        margin-bottom: var(--spacing-md);
    }

    .portal-input,
    .portal-select,
    .portal-textarea,
    .k-textbox,
    .k-input {
        font-size: var(--font-size-sm);
        /*padding: var(--spacing-xs) var(--spacing-sm);*/
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .modal-overlay {
        padding: var(--spacing-xs);
    }

    .modal-content {
        padding: var(--spacing-md);
        max-width: 100%;
    }

        .modal-content h3 {
            font-size: var(--font-size-lg);
            margin-bottom: var(--spacing-md);
        }

    .portal-table {
        font-size: var(--font-size-xs);
    }

        .portal-table th,
        .portal-table td {
            padding: var(--spacing-xs);
        }

        .portal-table thead {
            display: none;
        }

        .portal-table tbody tr {
            display: block;
            margin-bottom: var(--spacing-sm);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
        }

        .portal-table td {
            display: flex;
            justify-content: space-between;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-bottom: 1px solid var(--gray-200);
        }

            .portal-table td:last-child {
                border-bottom: none;
            }

            .portal-table td::before {
                content: attr(data-label);
                font-weight: 600;
                margin-right: var(--spacing-sm);
            }

    .portal-pagination {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }

    .portal-pagination-item {
        min-width: 32px;
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
    }

    .portal-tabs {
        overflow-x: auto;
        gap: var(--spacing-xs);
        font-size: var(--font-size-sm);
    }

    .portal-tab {
        padding: var(--spacing-xs) var(--spacing-sm);
        white-space: nowrap;
    }

    .portal-breadcrumb {
        font-size: 10px;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }

    .portal-alert,
    .alert {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }

    .portal-badge,
    .badge {
        font-size: 10px;
        padding: 2px 6px;
    }
}

/* === PRINT STYLES === */
@media print {
    body {
        background: var(--white);
    }

    .portal-header,
    .portal-sidebar,
    .portal-btn,
    .k-button,
    .portal-card-footer {
        display: none !important;
    }

    .portal-card {
        box-shadow: none !important;
        border: 1px solid var(--gray-300) !important;
        page-break-inside: avoid;
    }

    .portal-main {
        padding: 0;
    }

    a {
        color: var(--gray-900) !important;
        text-decoration: none !important;
    }
}

/* === ACCESSIBILITY === */

/* Focus Styles for Keyboard Navigation */
.portal-btn:focus,
.k-button:focus,
.portal-input:focus,
.portal-select:focus,
.portal-textarea:focus,
.k-textbox:focus,
.k-input:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

    .portal-btn:focus:not(:focus-visible),
    .k-button:focus:not(:focus-visible),
    a:focus:not(:focus-visible) {
        outline: none;
    }

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .portal-card,
    .portal-btn,
    .k-button,
    .portal-input,
    .portal-select,
    .portal-textarea {
        border: 2px solid currentColor;
    }
}

/* Screen Reader Only */
.portal-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* === IE11 FALLBACKS === */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
    .portal-layout {
        display: -ms-flexbox;
    }

    .portal-header,
    .portal-header-nav,
    .portal-card-footer,
    .form-row {
        display: -ms-flexbox;
    }

    .portal-main {
        -ms-flex: 1;
        flex: 1;
    }

    .portal-btn,
    .k-button {
        display: -ms-inline-flexbox;
        -ms-flex-align: center;
        -ms-flex-pack: center;
    }
}
/* === KENDO UI POPUPS & DIALOGS === */

/* Kendo Overlay Background */
.k-overlay {
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    z-index: 10000;
}

/* Kendo Dialog Base (Confirm, Alert, Prompt) */
.k-dialog,
.k-window.k-dialog {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: none;
    max-width: 80%;
    z-index: 10001;
    animation: portal-dialog-fadein 0.2s ease-out;
}

@keyframes portal-dialog-fadein {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Dialog Title Bar */
.k-dialog-titlebar,
.k-window.k-dialog .k-window-titlebar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: var(--white);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 52px;
}

.k-dialog-title,
.k-window.k-dialog .k-window-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
    flex: 1;
}

/* Dialog Close Button */
.k-dialog-titlebar .k-button-icon,
.k-window.k-dialog .k-window-actions .k-button-icon {
    background: transparent;
    color: var(--white);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    opacity: 0.9;
    margin: 0;
    padding: 0;
}

    .k-dialog-titlebar .k-button-icon:hover,
    .k-window.k-dialog .k-window-actions .k-button-icon:hover {
        background: rgba(255, 255, 255, 0.2);
        opacity: 1;
    }

/* Dialog Content */
.k-dialog-content,
.k-window.k-dialog .k-window-content {
    padding: var(--spacing-xl);
    font-size: var(--font-size-base);
    color: var(--gray-800);
    line-height: 1.6;
    background: var(--white);
    border: none;
}

    /* Confirm/Alert Icons in Content */
    .k-dialog-content .k-icon {
        font-size: 20px;
    }

/* Dialog Button Group / Actions */
.k-dialog-buttongroup,
.k-dialog-actions,
.k-window.k-dialog .k-dialog-buttongroup {
    
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

    /* Dialog Buttons */
    .k-dialog-buttongroup .k-button,
    .k-dialog-actions .k-button,
    .k-window.k-dialog .k-button {
        min-width: 90px;
        padding: var(--spacing-sm) var(--spacing-lg);
        font-weight: 500;
        border-radius: var(--radius-md);
        transition: all var(--transition-fast);
        border: none;
        cursor: pointer;
    }

        /* Primary Confirm Button */
        .k-dialog-buttongroup .k-button.k-primary,
        .k-dialog-actions .k-button.k-primary {
            background: var(--primary-color);
            color: var(--white);
        }

            .k-dialog-buttongroup .k-button.k-primary:hover,
            .k-dialog-actions .k-button.k-primary:hover {
                background: var(--primary-hover);
                transform: translateY(-1px);
                box-shadow: var(--shadow-sm);
            }

        /* Secondary Cancel Button */
        .k-dialog-buttongroup .k-button:not(.k-primary),
        .k-dialog-actions .k-button:not(.k-primary) {
            background: var(--white);
            color: var(--gray-700);
            border: 1px solid var(--gray-300);
        }

            .k-dialog-buttongroup .k-button:not(.k-primary):hover,
            .k-dialog-actions .k-button:not(.k-primary):hover {
                background: var(--gray-100);
                border-color: var(--gray-400);
            }

/* Kendo Confirm Dialog Specific */
.k-confirm .k-dialog-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.k-confirm .k-icon {
    color: var(--warning-color);
    font-size: 56px;
    margin-bottom: var(--spacing-lg);
}

/* Kendo Alert Dialog Specific */
.k-alert .k-dialog-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.k-alert .k-icon {
    color: var(--info-color);
    font-size: 56px;
    margin-bottom: var(--spacing-lg);
}

.k-alert.k-alert-success .k-icon {
    color: var(--success-color);
}

.k-alert.k-alert-error .k-icon {
    color: var(--danger-color);
}

.k-alert.k-alert-warning .k-icon {
    color: var(--warning-color);
}

/* Kendo Prompt Dialog Specific */
.k-prompt .k-dialog-content {
    padding: var(--spacing-lg) var(--spacing-xl);
}

.k-prompt .k-textbox,
.k-prompt input[type="text"] {
    width: 100%;
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
}

    .k-prompt .k-textbox:focus,
    .k-prompt input[type="text"]:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
    }

/* Generic Kendo Popup */
.k-popup {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xs);
    z-index: 10002;
}

    .k-popup .k-list-item {
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
        cursor: pointer;
    }

        .k-popup .k-list-item:hover {
            background: var(--gray-100);
            color: var(--primary-color);
        }

        .k-popup .k-list-item.k-selected {
            background: var(--primary-light);
            color: var(--primary-color);
            font-weight: 500;
        }

/* Kendo Context Menu */
.k-context-menu.k-popup {
    padding: var(--spacing-sm);
    min-width: 180px;
}

.k-context-menu .k-item {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

    .k-context-menu .k-item:hover {
        background: var(--primary-light);
        color: var(--primary-color);
    }

/* Kendo Tooltip Popup */
.k-tooltip {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-md);
    border: none;
    max-width: 300px;
}

    .k-tooltip .k-callout {
        color: var(--gray-900);
    }

/* === RESPONSIVE STYLES FOR KENDO DIALOGS === */

/* Tablet (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .k-dialog,
    .k-window.k-dialog {
        max-width: 90%;
    }

        .k-dialog-content,
        .k-window.k-dialog .k-window-content {
            padding: var(--spacing-lg);
        }

    .k-dialog-buttongroup,
    .k-dialog-actions {
        padding: var(--spacing-md);
    }

        .k-dialog-buttongroup .k-button,
        .k-dialog-actions .k-button {
            min-width: 80px;
            padding: var(--spacing-sm) var(--spacing-md);
        }
}

/* Mobile (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    .k-dialog,
    .k-window.k-dialog {
        max-width: 95%;
        margin: var(--spacing-md);
    }

        .k-dialog-titlebar,
        .k-window.k-dialog .k-window-titlebar {
            padding: var(--spacing-sm) var(--spacing-md);
            min-height: 48px;
        }

        .k-dialog-title,
        .k-window.k-dialog .k-window-title {
            font-size: var(--font-size-base);
        }

        .k-dialog-content,
        .k-window.k-dialog .k-window-content {
            padding: var(--spacing-md);
            font-size: var(--font-size-sm);
        }

    .k-confirm .k-icon,
    .k-alert .k-icon {
        font-size: 48px;
        margin-bottom: var(--spacing-md);
    }

    .k-dialog-buttongroup,
    .k-dialog-actions {
        padding: var(--spacing-sm) var(--spacing-md);
        flex-direction: column;
        gap: var(--spacing-xs);
    }

        .k-dialog-buttongroup .k-button,
        .k-dialog-actions .k-button {
            width: 100%;
            min-width: 0;
            justify-content: center;
        }
}

/* Extra Small Mobile (<480px) */
@media (max-width: 479px) {
    .k-dialog,
    .k-window.k-dialog {
        max-width: calc(100% - var(--spacing-md));
        min-width: 0;
        margin: var(--spacing-xs);
        border-radius: var(--radius-md);
    }

        .k-dialog-titlebar,
        .k-window.k-dialog .k-window-titlebar {
            padding: var(--spacing-xs) var(--spacing-sm);
            min-height: 44px;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .k-dialog-title,
        .k-window.k-dialog .k-window-title {
            font-size: var(--font-size-sm);
        }

        .k-dialog-titlebar .k-button-icon,
        .k-window.k-dialog .k-window-actions .k-button-icon {
            width: 28px;
            height: 28px;
        }

        .k-dialog-content,
        .k-window.k-dialog .k-window-content {
            padding: var(--spacing-sm);
            font-size: var(--font-size-sm);
        }

    .k-confirm .k-dialog-content,
    .k-alert .k-dialog-content {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .k-confirm .k-icon,
    .k-alert .k-icon {
        font-size: 40px;
        margin-bottom: var(--spacing-sm);
    }

    .k-prompt .k-dialog-content {
        padding: var(--spacing-sm);
    }

    .k-dialog-buttongroup,
    .k-dialog-actions {
        padding: var(--spacing-xs) var(--spacing-sm);
        flex-direction: column;
        gap: var(--spacing-xs);
        border-radius: 0 0 var(--radius-md) var(--radius-md);
    }

        .k-dialog-buttongroup .k-button,
        .k-dialog-actions .k-button {
            width: 100%;
            min-width: 0;
            padding: var(--spacing-xs) var(--spacing-sm);
            font-size: var(--font-size-sm);
        }

    .k-popup {
        max-width: calc(100vw - var(--spacing-md));
    }
}

/* === KENDO DIALOG THEME VARIATIONS === */

/* Success Dialog */
.k-dialog.dialog-success .k-dialog-titlebar {
    background: linear-gradient(135deg, var(--success-color), var(--success-hover));
}

/* Danger Dialog */
.k-dialog.dialog-danger .k-dialog-titlebar {
    background: linear-gradient(135deg, var(--danger-color), var(--danger-hover));
}

/* Warning Dialog */
.k-dialog.dialog-warning .k-dialog-titlebar {
    background: linear-gradient(135deg, var(--warning-color), #e0a800);
}

/* Info Dialog */
.k-dialog.dialog-info .k-dialog-titlebar {
    background: linear-gradient(135deg, var(--info-color), #138496);
}

/* === ACCESSIBILITY FOR DIALOGS === */
.k-dialog:focus,
.k-window.k-dialog:focus {
    outline: none;
}

.k-dialog-buttongroup .k-button:focus,
.k-dialog-actions .k-button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* === LOADING INDICATOR IN DIALOGS === */
.k-dialog-content .portal-spinner {
    display: block;
    margin: var(--spacing-lg) auto;
}

/* === DARK MODE SUPPORT (Optional) === */
/*@media (prefers-color-scheme: dark) {
    :root {
        --white: #1a1a1a;
        --light-gray: #212529;
        --gray-100: #2c3136;
        --gray-200: #373b40;
        --gray-300: #495057;
        --gray-800: #dee2e6;
        --gray-900: #f8f9fa;
        --border-color: #495057;
        --text-color: #dee2e6;
        --dark-text: #f8f9fa;
    }

    body {
        background-color: #1a1a1a;
        color: #dee2e6;
    }

    .portal-card {
        background: #212529;
    }

    .portal-btn-secondary,
    .k-button.k-secondary {
        background: #495057;
        color: #f8f9fa;
    }
}*/