:root {
    /* Colors - High Contrast */
    --primary-color: #0056b3; /* Deep Blue for Primary Actions */
    --primary-hover: #004494;
    --secondary-color: #6c757d; /* Grey for Secondary Actions */
    --success-color: #28a745; /* Green for Positive Actions/Status */
    --success-hover: #218838;
    --danger-color: #dc3545; /* Red for Warnings/Delete */
    --warning-color: #ffc107; /* Yellow for Alerts */
    --info-color: #17a2b8; /* Cyan for Info */
    --bg-color: #f4f6f9; /* Light Grey Background */
    --surface-color: #ffffff; /* White Card Background */
    --text-primary: #212529; /* Darkest Grey for Body Text */
    --text-secondary: #6c757d; /* Medium Grey for Subtitles */
    --border-color: #dee2e6; /* Light Border */

    /* Typography */
    --font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 18px; /* Larger base font for accessibility */
    --line-height-base: 1.6;

    /* Spacing */
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Components */
    --border-radius: 12px;
    --box-shadow: 0 4px 6px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.08);
    --box-shadow-hover: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --transition-speed: 0.3s;
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    color: var(--text-primary);
}

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

a:hover {
    text-decoration: underline;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.portal-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background-color: var(--surface-color);
    box-shadow: var(--box-shadow);
    /* padding: var(--spacing-md) 0; */
    margin-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--primary-color);
}

main {
    flex: 1;
    padding-bottom: var(--spacing-xl);
}

footer {
    background-color: var(--surface-color);
    padding: var(--spacing-md) 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Components: Card */
.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

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

.card-header {
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

/* Components: Button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    text-decoration: none;
    min-height: 48px; /* Minimum touch target size */
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.btn:focus-visible {
    outline: 3px solid var(--warning-color);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #fff;
    text-decoration: none;
}

.btn-success {
    background-color: var(--success-color);
    color: #fff;
}
.btn-success:hover {
    background-color: var(--success-hover);
    color: #fff;
    text-decoration: none;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}
.btn-outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-block {
    width: 100%;
}

.btn-disabled {
    background-color: var(--secondary-color);
    cursor: not-allowed;
    opacity: 0.6;
}

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

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

input[type="text"],
input[type="password"],
input[type="email"],
select {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--surface-color);
    height: 48px; /* Accessible height */
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

input:focus,
select:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 4px rgba(0, 86, 179, 0.15);
}

/* Components: Alert */
.alert {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeeba;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

/* Components: Badges */
.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: 75%;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 10rem;
}
.badge-success { color: #fff; background-color: var(--success-color); }
.badge-warning { color: #212529; background-color: var(--warning-color); }
.badge-danger { color: #fff; background-color: var(--danger-color); }

/* Components: Modal */
body.modal-open {
    overflow: hidden;
    padding-right: 15px; /* Compensate for scrollbar width to prevent jump */
}

.modal {
    display: none;
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
}

.modal.show {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background-color: var(--surface-color);
    margin: 5% auto;
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 800px;
    position: relative;
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
}

.modal.show .modal-content {
    animation: scaleIn 0.3s ease-out forwards;
}

.close-modal {
    color: #aaa;
    float: right;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    padding: 0 10px;
}

.close-modal:hover,
.close-modal:focus {
    color: #000;
    text-decoration: none;
}

/* Responsive Table */
.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    margin-bottom: 1rem;
    color: var(--text-primary);
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px;
    vertical-align: top;
    border-top: 1px solid var(--border-color);
    text-align: left;
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--border-color);
    background-color: #f8f9fa;
    font-weight: 600;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #fff;
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 9999;
    padding: 20px;
    display: none; /* Hidden by default */
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.cookie-content {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* Header Styles */
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.header-brand img {
    height: 70px;
    width: auto;
}

.header-brand h1 {
    margin: 0;
    font-size: 1.5rem;
}

.header-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.header-btn {
    flex: 1;
    min-width: fit-content;
}

.header-btn span {
    margin-left: 5px;
}

/* Modal Improvements */
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.close-modal {
    padding: 10px;
    margin: -10px; /* Increase touch target without shifting visually */
}

/* Mobile specific overrides */
@media (max-width: 768px) {
    .modal-content {
        margin: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
        max-width: none;
        overflow-y: auto;
    }

    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 var(--spacing-md); /* Slightly larger padding for easier reading */
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.15rem; }

    .cookie-banner {
        flex-direction: column;
        text-align: center;
    }

    .header-container {
        flex-direction: column;
        text-align: center;
        padding-bottom: var(--spacing-lg); /* Give more space below buttons on mobile */
    }

    .header-brand {
        justify-content: center;
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }

    .header-actions {
        width: 100%;
        justify-content: center;
        gap: 12px;
    }

    .header-btn {
        flex: 1 1 auto;
    }

    .mobile-stack-form {
        flex-direction: column;
        gap: var(--spacing-sm) !important;
    }

    .mobile-stack-form .form-group {
        width: 100%;
        margin-bottom: 0;
    }

    /* Responsive Table to Cards */
    .table.mobile-cards thead {
        display: none;
    }

    .table.mobile-cards, .table.mobile-cards tbody, .table.mobile-cards tr, .table.mobile-cards td {
        display: block;
        width: 100%;
    }

    .table.mobile-cards tr {
        margin-bottom: var(--spacing-md);
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        padding: var(--spacing-sm);
        background-color: var(--surface-color);
        box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    }

    .table.mobile-cards td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        text-align: right;
        border-top: none;
        padding: 8px 12px;
        border-bottom: 1px solid var(--border-color);
    }

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

    .table.mobile-cards td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-secondary);
        text-align: left;
        margin-right: var(--spacing-md);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
/* .mb-3 { margin-bottom: var(--spacing-lg); } */
.w-100 { width: 100%; }
.d-none { display: none; }
.d-block { display: block; }

/* Flex Utilities */
.d-flex { display: flex; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.flex-column { flex-direction: column; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }

/* Additional Utilities */
.h-100 { height: 100%; }
.border-top { border-top: 1px solid var(--border-color); }
.pt-3 { padding-top: var(--spacing-lg); }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }
.ml-2 { margin-left: var(--spacing-md); }
.mr-2 { margin-right: var(--spacing-md); }
.justify-content-center { justify-content: center; }
.align-items-start { align-items: flex-start; }
.mt-auto { margin-top: auto; }

/* Interaction Utilities */
.cursor-pointer { cursor: pointer; }
.border-primary { border-color: var(--primary-color) !important; border-width: 2px; }
.bg-light-blue { background-color: #e7f1ff; }
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px auto;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Button Sizes */
.btn-lg { padding: 16px 32px; font-size: 1.25rem; }
.btn-sm { padding: 8px 16px; font-size: 0.875rem; min-height: 36px; }