:root {
    /* Color Palette */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --secondary-dark: #475569;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;

    /* Neutral Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: var(--spacing-lg);
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    border-radius: var(--radius-sm);
    z-index: 100;
}

.skip-link:focus {
    top: 10px;
    left: 10px;
}

/* Welcome Page Styles */
.disclaimer-box,
.privacy-notice {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg) 0;
}

.disclaimer-box {
    border-left: 4px solid var(--warning-color);
}

.privacy-notice {
    border-left: 4px solid var(--success-color);
}

.disclaimer-box h3,
.privacy-notice h3 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.disclaimer-box ul,
.privacy-notice ul {
    margin-left: var(--spacing-xl);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.disclaimer-box li,
.privacy-notice li {
    margin-bottom: var(--spacing-xs);
}

.disclaimer-box a,
.privacy-notice a {
    color: var(--primary-color);
    text-decoration: underline;
}

.consent-box {
    background: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-xl);
    border: 2px solid var(--border-color);
}

.consent-label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    font-weight: normal;
}

.consent-label input[type="checkbox"] {
    margin-right: var(--spacing-md);
    margin-top: 4px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    flex-shrink: 0;
}

.consent-label span {
    line-height: 1.6;
}

.consent-label a {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Site Footer */
.site-footer {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.site-footer p {
    margin: var(--spacing-xs) 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

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

.site-footer a:hover {
    text-decoration: underline;
}

.copyright {
    color: var(--text-muted);
}

/* Enhanced Focus Indicators */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Validation Styles */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--danger-color);
}

.error-message {
    display: none;
    color: var(--danger-color);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.form-group.error .error-message {
    display: block;
}

.required-indicator {
    color: var(--danger-color);
    margin-left: 4px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-xl);
    text-align: center;
}

header h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

/* Progress Bar */
.progress-container {
    margin-top: var(--spacing-lg);
}

.progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 999px;
    overflow: hidden;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--progress-width, 12.5%);
    background: linear-gradient(90deg, #10b981 0%, #34d399 100%);
    border-radius: 999px;
    transition: width var(--transition-base);
}

.progress-text {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Main Content */
main {
    padding: var(--spacing-2xl);
    min-height: 500px;
    background: var(--bg-tertiary);
}

/* Pages */
.page {
    display: none;
    animation: slideIn 0.3s ease-in-out;
}

.page.active {
    display: block;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.page h2 {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.page-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-base);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-row .form-group {
    margin-bottom: 0;
}

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

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
    background: var(--bg-primary);
}

.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(37, 99, 235, 0.1);
}

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

.help-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Radio and Checkbox Groups */
.radio-group,
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.radio-group label,
.checkbox-group label {
    display: flex;
    align-items: center;
    font-weight: 400;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.radio-group label:hover,
.checkbox-group label:hover {
    background: var(--bg-tertiary);
}

.radio-group input[type="radio"],
.checkbox-group input[type="checkbox"] {
    margin-right: var(--spacing-sm);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Job Entry */
.job-entry {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--border-color);
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

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

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
    border-color: var(--secondary-color);
}

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

#addJobBtn {
    margin-top: var(--spacing-md);
}

/* Footer Navigation */
footer {
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-top: 2px solid var(--border-color);
}

.navigation-buttons {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.navigation-buttons button {
    flex: 1;
    max-width: 200px;
}

/* Results Page */
.results-container {
    text-align: center;
}

.result-determination {
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.result-determination.likely-allowance {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    color: white;
    box-shadow: var(--shadow-lg);
}

.result-determination.likely-denial {
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    color: white;
    box-shadow: var(--shadow-lg);
}

.result-explanation {
    text-align: left;
    background: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid var(--primary-color);
}

.result-explanation h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
}

.result-explanation ul {
    margin-left: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.result-explanation li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.disclaimer {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
    border: 2px solid #fbbf24;
}

.disclaimer h3 {
    color: #92400e;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
}

.disclaimer p {
    color: #78350f;
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.disclaimer p:last-child {
    margin-bottom: 0;
}

.disclaimer a {
    color: #92400e;
    font-weight: 600;
    text-decoration: underline;
}

.disclaimer a:hover {
    color: #78350f;
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

/* SSA Age Guidelines Styles */
.ssa-age-guidelines {
    text-align: left;
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

.ssa-age-guidelines h3 {
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.ssa-age-guidelines h3:first-child {
    margin-top: 0;
}

.ssa-age-guidelines p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.ssa-age-guidelines ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.ssa-age-guidelines li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.eligibility-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.listing-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.listing-link:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }

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

    header {
        padding: var(--spacing-lg);
    }

    header h1 {
        font-size: var(--font-size-2xl);
    }

    main {
        padding: var(--spacing-lg);
    }

    .page h2 {
        font-size: var(--font-size-xl);
    }

    footer {
        padding: var(--spacing-md);
    }

    .navigation-buttons {
        flex-direction: column;
    }

    .navigation-buttons button {
        max-width: 100%;
    }

    .result-actions {
        flex-direction: column;
    }

    .result-actions button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: var(--font-size-xl);
    }

    .page h2 {
        font-size: var(--font-size-lg);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px;
        /* Prevents zoom on iOS */
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        padding: 0;
    }

    .container {
        box-shadow: none;
    }

    header {
        background: var(--primary-color);
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }

    footer,
    .result-actions {
        display: none;
    }

    .disclaimer {
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }
}

/* Loading State */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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