/* CSS Variables for theming */
:root {
    --primary-color: #2c5aa0;
    --secondary-color: #f39c12;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #3498db;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-muted: #95a5a6;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --max-width: 1200px;
}

/* Dark mode variables */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2c2c2c;
    --bg-card: #2c2c2c;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;
    --border-color: #404040;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: var(--transition);
    min-height: 100vh;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header styles */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 2rem 0;
    margin: 0 -20px;
    position: relative;
}

.header-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    position: relative;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.header h1 i {
    margin-right: 0.5rem;
    color: var(--secondary-color);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 1rem;
}

/* Theme toggle */
.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 20px;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 30px;
    transition: var(--transition);
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--info-color);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(30px);
}

.toggle-label {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 8px;
    font-size: 0.8rem;
    pointer-events: none;
    z-index: 1;
}

/* Main content */
.main-content {
    flex: 1;
    padding: 2rem 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

/* Card styles */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.card h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form styles */
.form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group label i {
    color: var(--primary-color);
    width: 16px;
}

.form-group input,
.form-group select {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

/* Remove red styling for invalid inputs - use neutral styling instead */
.form-group input:invalid {
    border-color: var(--border-color);
}

.form-group input.error,
.form-group select.error {
    border-color: var(--danger-color);
}

.error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    min-height: 1.2rem;
    display: block;
}

/* Button styles */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    justify-content: center;
}

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

.btn-primary:hover {
    background-color: #1e3d6f;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--text-muted);
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
    transform: translateY(-2px);
}

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

.btn-success:hover {
    background-color: #219a52;
    transform: translateY(-2px);
}

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

.btn-info:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

/* Results section */
.results-section {
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.result-item {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
}

.result-item.highlight {
    background: linear-gradient(135deg, var(--success-color), #2ecc71);
    color: white;
    transform: scale(1.02);
}

.result-label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.result-value {
    font-size: 1.8rem;
    font-weight: 700;
}

.result-item.highlight .result-label,
.result-item.highlight .result-value {
    color: white;
}

/* Calculation breakdown */
.calculation-breakdown {
    margin: 2rem 0;
}

.calculation-breakdown h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breakdown-content {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.breakdown-item:last-child {
    border-bottom: none;
    font-weight: 600;
    color: var(--success-color);
}

/* Legal notice */
.legal-notice {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
}

[data-theme="dark"] .legal-notice {
    background: #3a3a2a;
    border-color: #4a4a3a;
    color: #d4c069;
}

.legal-notice i {
    margin-right: 0.5rem;
}

/* Action buttons */
.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.action-buttons .btn {
    flex: 1;
    min-width: 140px;
}

/* Loading state for PDF export */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    pointer-events: none;
}

/* Blog Section */
.blog-section {
    margin-top: 2rem;
}

.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.blog-post {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-primary);
    display: block;
    cursor: pointer;
}

.blog-post:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.blog-post:active {
    transform: translateY(-1px);
}

.blog-post h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    line-height: 1.4;
}

.blog-post .excerpt {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.blog-post .date {
    color: var(--text-muted);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.loading-message {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
    font-style: italic;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: 3rem 0 1rem;
    margin: 3rem -20px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    color: var(--text-secondary);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section p {
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

.footer-bottom i {
    margin-right: 0.5rem;
    color: var(--success-color);
}

/* Print styles */
.print-only {
    display: none;
}

.print-hide {
    display: block;
}

@media print {
    .print-only {
        display: block !important;
    }
    
    .print-hide {
        display: none !important;
    }
    
    .header,
    .footer,
    .theme-toggle,
    .action-buttons,
    .form-actions {
        display: none !important;
    }
    
    .container {
        max-width: none;
        margin: 0;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .print-header {
        text-align: center;
        margin-bottom: 2rem;
        padding-bottom: 1rem;
        border-bottom: 2px solid #ccc;
    }
    
    .print-header h1 {
        color: #2c5aa0;
        margin-bottom: 0.5rem;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .card {
        background: white !important;
    }
    
    .result-item.highlight {
        background: #f0f0f0 !important;
        color: black !important;
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .theme-toggle {
        position: static;
        margin-top: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions,
    .action-buttons {
        flex-direction: column;
    }
    
    .results-summary {
        grid-template-columns: 1fr;
    }
    
    .breakdown-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .header {
        margin: 0 -15px;
    }
    
    .footer {
        margin-left: -15px;
        margin-right: -15px;
    }
}

@media (max-width: 480px) {
    .card {
        padding: 1.5rem;
    }
    
    .header {
        padding: 1.5rem 0;
    }
    
    .main-content {
        padding: 1rem 0;
    }
}

/* Loading state */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Focus styles for accessibility */
.btn:focus,
input:focus,
select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Animation for results */
.result-item {
    opacity: 0;
    animation: fadeInUp 0.5s ease-out forwards;
}

.result-item:nth-child(2) {
    animation-delay: 0.1s;
}

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

/* Page content styles for static pages */
.page-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.feature-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.feature-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.contact-info {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.contact-methods {
    margin: 1.5rem 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.contact-item i {
    color: var(--primary-color);
    width: 20px;
    text-align: center;
}

/* Additional styles for contact and static pages */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
}

.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

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

.faq-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.faq-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.response-times {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.response-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.response-item i {
    font-size: 1.5rem;
    color: var(--success-color);
}

/* Additional styles for disclaimer and policy pages */
.important-notice {
    background: linear-gradient(135deg, var(--warning-color), #f39c12);
    color: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
}

.important-notice i {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.page-content h3 {
    color: var(--primary-color);
    margin: 1.5rem 0 0.75rem 0;
    font-size: 1.1rem;
}

.page-content ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

.page-content ul li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.page-content strong {
    color: var(--primary-color);
}