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

:root {
    /* Dark Theme Colors */
    --bg-primary: #0f0f23;
    --bg-secondary: #1e1e3a;
    --bg-tertiary: #2d2d5a;
    --text-primary: #ffffff;
    --text-secondary: #b8b8d4;
    --text-muted: #7a7a9a;
    --accent-primary: #00d4aa;
    --accent-secondary: #ff6b6b;
    --accent-warning: #ffa726;
    --border-color: #3a3a5c;
    --shadow: rgba(0, 0, 0, 0.3);
    --success: #4caf50;
    --error: #f44336;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 3rem;
    
    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    --font-size-xxxl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

/* Landing Section */
.landing {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.landing::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero {
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero-title {
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.hero-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

@media (max-width: 768px) {
    .hero-facts {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .fact-item {
        padding: var(--space-md);
    }
    
    .fact-text {
        font-size: var(--font-size-xs);
    }
}

.fact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.fact-icon {
    font-size: var(--font-size-xxl);
    flex-shrink: 0;
}

.fact-text {
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

.fact-text strong {
    color: var(--accent-primary);
    display: block;
    margin-bottom: 0.25rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, #00b894 100%);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 170, 0.3);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--accent-primary);
    color: white;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-secondary) 0%, #ff5252 100%);
    color: white;
}

.btn-accent:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.3);
}

.btn-large {
    padding: var(--space-md) var(--space-xxl);
    font-size: var(--font-size-lg);
}

.btn-green {
    background: linear-gradient(135deg, #00b894 0%, #00a085 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.3);
}

.btn-green:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 184, 148, 0.4);
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.btn-close:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

/* Calculator Section */
.calculator {
    min-height: 100vh;
    padding: var(--space-xl) 0;
}

.calculator-header {
    text-align: center;
    margin-bottom: var(--space-xxl);
}

.calculator-header h2 {
    font-size: var(--font-size-xxl);
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

/* Vehicle Toggle */
.vehicle-toggle {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    background-color: var(--bg-secondary);
    padding: var(--space-xs);
    border-radius: var(--radius-lg);
    width: fit-content;
    margin: 0 auto;
}

.vehicle-toggle input[type="radio"] {
    display: none;
}

.vehicle-toggle label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
    font-weight: 500;
}

.vehicle-toggle input[type="radio"]:checked + label {
    background-color: var(--accent-primary);
    color: white;
}

/* Form Styles */
.calculator-form {
    display: grid;
    gap: var(--space-xxl);
    max-width: 800px;
    margin: 0 auto;
}

.form-section {
    background-color: var(--bg-secondary);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.form-section h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-lg);
    color: var(--accent-primary);
    border-bottom: 2px solid var(--accent-primary);
    padding-bottom: var(--space-sm);
}

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

.form-group:last-child {
    margin-bottom: 0;
}

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

.form-group input[type="number"],
.form-group input[type="text"],
.form-group select {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

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

/* Checkbox Styles */
.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-weight: normal !important;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-tertiary);
    position: relative;
    transition: var(--transition);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: var(--font-size-sm);
}

/* Service Mode Toggle */
.service-mode-toggle {
    display: flex;
    margin-bottom: var(--space-lg);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--space-xs);
}

.service-mode-toggle input[type="radio"] {
    display: none;
}

.service-mode-toggle label {
    flex: 1;
    text-align: center;
    padding: var(--space-md);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-size: var(--font-size-base);
    font-weight: 600;
}

.service-mode-toggle input[type="radio"]:checked + label {
    background-color: var(--accent-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 212, 170, 0.3);
}

.service-mode-form {
    display: none;
}

.service-mode-form.active {
    display: block;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Service Tabs */
.service-tabs {
    display: flex;
    margin-bottom: var(--space-lg);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--space-xs);
}

.service-tabs input[type="radio"] {
    display: none;
}

.service-tabs label {
    flex: 1;
    text-align: center;
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.service-tabs input[type="radio"]:checked + label {
    background-color: var(--accent-primary);
    color: white;
}

.service-form {
    display: none;
}

.service-form.active {
    display: block;
}

/* Form Actions */
.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-xxl);
}

/* Results Section */
.results {
    max-width: 1000px;
    margin: var(--space-xxl) auto;
    padding: var(--space-xl);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.results-header h3 {
    font-size: var(--font-size-xl);
    color: var(--accent-primary);
}

/* Vehicle Info */
.vehicle-info {
    background-color: var(--bg-tertiary);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    margin-bottom: var(--space-xl);
}

.vehicle-info h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
    color: var(--accent-primary);
}

.vehicle-details {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    font-weight: 500;
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.card {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px var(--shadow);
}

.card-title {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.card-value {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--accent-primary);
}

/* Top Costs */
.top-costs {
    margin-bottom: var(--space-xl);
}

.top-costs h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.cost-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.cost-chip {
    background: linear-gradient(135deg, var(--accent-secondary) 0%, #ff5252 100%);
    color: white;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.cost-chip .rank {
    background-color: rgba(255, 255, 255, 0.2);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
}

/* Results Content */
.results-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
}

.breakdown-table h4,
.chart-container h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

/* Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

th, td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--bg-primary);
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    letter-spacing: 0.5px;
}

td {
    color: var(--text-primary);
}

tr:hover {
    background-color: rgba(0, 212, 170, 0.05);
}

.amount {
    font-weight: 600;
    color: var(--accent-primary);
}

.note {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Chart Container */
.chart-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.chart-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 400px;
    margin: 0 auto;
}

#pieChart {
    width: 100% !important;
    height: 100% !important;
    max-width: 400px;
    max-height: 400px;
    cursor: default;
}

/* Donation Banner */
.donation-banner {
    background: linear-gradient(135deg, var(--accent-secondary) 0%, #ff5252 100%);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    margin-top: var(--space-xxl);
    text-align: center;
}

.donation-content p {
    margin-bottom: var(--space-md);
    color: white;
    font-weight: 500;
}

/* Research Opt-in */
.research-optin {
    background-color: var(--bg-tertiary);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin-top: var(--space-xxl);
    border: 1px solid var(--border-color);
}

.research-optin h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-lg);
    color: var(--accent-primary);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.contact-method label:first-child {
    font-weight: 600;
    margin-bottom: 0;
}

.contact-method input[type="radio"] {
    margin-right: var(--space-xs);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.modal:not(.hidden) .modal-content {
    transform: scale(1);
}

.modal-content {
    background-color: var(--bg-secondary);
    padding: var(--space-xxl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    color: var(--accent-primary);
}

.modal-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
    margin-top: var(--space-xl);
}

/* Comparison Styles */
.comparison-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.scenario-select {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.comparison-results table th:nth-child(4),
.comparison-results table td:nth-child(4) {
    font-weight: 600;
    color: var(--accent-warning);
}

/* Contact Form Styles */
.contact-form {
    max-width: 400px;
    margin: 0 auto;
}

.radio-group {
    display: flex;
    gap: var(--space-lg);
    margin-top: var(--space-sm);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-weight: 500;
    margin-bottom: 0;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    position: relative;
    transition: var(--transition);
}

.radio-label input[type="radio"] {
    display: none;
}

.radio-label input[type="radio"]:checked + .radio-custom {
    border-color: var(--accent-primary);
    background-color: var(--accent-primary);
}

.radio-label input[type="radio"]:checked + .radio-custom::after {
    content: '';
    width: 8px;
    height: 8px;
    background-color: white;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* QR Modal */
.qr-content {
    text-align: center;
}

.qr-content img {
    max-width: 250px;
    width: 100%;
    height: auto;
    margin-bottom: var(--space-lg);
    border-radius: var(--radius-md);
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    background-color: var(--success);
    color: white;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px var(--shadow);
    z-index: 1001;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.toast-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.toast-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Sticky Donate Button */
.sticky-donate {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: 999;
}

.sticky-donate .btn {
    border-radius: 50px;
    padding: var(--space-md) var(--space-lg);
    box-shadow: 0 4px 12px var(--shadow);
}

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

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer p {
    color: var(--text-secondary);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* Print Styles */
@media print {
    body {
        background-color: white;
        color: black;
    }
    
    .landing,
    .form-actions,
    .donation-banner,
    .research-optin,
    .modal,
    .toast,
    .sticky-donate,
    .footer {
        display: none !important;
    }
    
    .calculator {
        padding: 0;
    }
    
    .results {
        background-color: white;
        border: 1px solid #ccc;
        box-shadow: none;
        margin: 0;
        max-width: none;
    }
    
    .card {
        border: 1px solid #ccc;
        background-color: #f9f9f9;
    }
    
    .card-title {
        color: #666;
    }
    
    .card-value {
        color: #333;
    }
    
    table {
        background-color: white;
    }
    
    th {
        background-color: #f5f5f5;
        color: #333;
    }
    
    td {
        color: #333;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .hero-title {
        font-size: var(--font-size-xxl);
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .results-content {
        grid-template-columns: 1fr;
    }
    
    .summary-cards {
        grid-template-columns: 1fr;
    }
    
    .comparison-selector {
        grid-template-columns: 1fr;
    }
    
    .footer .container {
        flex-direction: column;
        text-align: center;
    }
    
    .service-tabs {
        flex-direction: column;
    }
    
    .vehicle-toggle {
        flex-direction: column;
    }
    
    .cost-chips {
        justify-content: center;
    }
    
    .modal-content {
        padding: var(--space-lg);
        margin: var(--space-sm);
    }
    
    .sticky-donate {
        display: block;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .form-section {
        padding: var(--space-lg);
    }
    
    .results {
        padding: var(--space-lg);
    }
    
    .modal-content {
        padding: var(--space-md);
    }
    
    .btn {
        padding: var(--space-md);
        font-size: var(--font-size-sm);
    }
    
    .btn-large {
        padding: var(--space-lg);
        font-size: var(--font-size-base);
    }
    
    .card {
        padding: var(--space-lg);
    }
    
    .card-value {
        font-size: var(--font-size-xl);
    }
    
    th, td {
        padding: var(--space-sm);
        font-size: var(--font-size-sm);
    }
}

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

.calculator,
.results {
    animation: fadeIn 0.5s ease;
}

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

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #1a1a1a;
        --bg-tertiary: #333333;
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --border-color: #666666;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .landing::before {
        animation: none;
    }
}
/* ===== PDF CLEAN LAYOUT ===== */
#pdfLayout {
  width: 794px; /* A4 width at ~96dpi */
  padding: 24px;
  background: #ffffff;
  color: #111111;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 1.45;
}

#pdfLayout h1, #pdfLayout h2, #pdfLayout h3, #pdfLayout h4 {
  color: #111111;
  margin: 0 0 12px 0;
}

#pdfLayout .pdf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

#pdfLayout .card {
  background: #fff;
  border: 1px solid #eaeaea;
  border-radius: 8px;
  padding: 12px 14px;
  box-shadow: none;
}

#pdfLayout table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

#pdfLayout th, #pdfLayout td {
  border: 1px solid #e6e6e6;
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  font-size: 13px;
}

#pdfLayout th {
  background: #fafafa;
  font-weight: 600;
}

#pdfLayout .muted {
  color: #666;
  font-size: 12px;
}

.page-break {
  page-break-after: always;
}
/* ===== PDF CLEAN LAYOUT ===== */
#pdfLayout {
  width: 794px; /* A4 width at ~96dpi */
  max-width: 794px; /* cegah melar */
  padding: 24px;
  background: #ffffff;
  color: #111111;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#pdfLayout h1, #pdfLayout h2, #pdfLayout h3, #pdfLayout h4 {
  color: #111111;
  margin: 0 0 12px 0;
}

#pdfLayout .pdf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

#pdfLayout .card {
  background: #fff;
  border: 1px solid #eaeaea;
  border-radius: 8px;
  padding: 12px 14px;
  box-shadow: none;
}

#pdfLayout table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

#pdfLayout th, #pdfLayout td {
  border: 1px solid #e6e6e6;
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  font-size: 13px;
  word-break: break-word;
  hyphens: auto;
}

#pdfLayout th {
  background: #fafafa;
  font-weight: 600;
}

#pdfLayout .muted {
  color: #666;
  font-size: 12px;
}

#pdfLayout img {
  display: block;
  max-width: 100%;
  height: auto;
}

#pdfLayout tfoot td,
#pdfLayout tr:last-child td {
  font-weight: 700;
  background: #fcfcfc;
}

.page-break {
  page-break-after: always;
  break-after: page;
}