* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 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);
    --tab-active-color: #2563eb;
    --tab-inactive-bg: #f1f5f9;
}

/* Dark mode — variable overrides (on html to prevent flash) */
.dark-mode {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --border-color: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3), 0 4px 6px rgba(0, 0, 0, 0.2);
    --tab-inactive-bg: #1e293b;
}

body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    padding: 20px 0;
    transition: background-color 0.3s ease, color 0.3s ease;
    margin: 0;
}

/* Ad Spaces - 20% on each side (reserved for future ads) */
.ad-space {
    position: fixed;
    top: 0;
    bottom: 0;
    width: 20%;
    z-index: 0;
    /* No background - transparent for now, can add ads later */
}

.ad-space-left {
    left: 0;
}

.ad-space-right {
    right: 0;
}

/* Main Container - centered 60% */
.container {
    width: 60%;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* Responsive - on smaller screens, reduce margins */
@media (max-width: 1200px) {
    .ad-space {
        width: 15%;
    }
    .container {
        width: 70%;
    }
}

@media (max-width: 992px) {
    .ad-space {
        width: 10%;
    }
    .container {
        width: 80%;
    }
}

@media (max-width: 768px) {
    .ad-space {
        display: none;
    }
    .container {
        width: 100%;
        padding: 0 15px;
    }
}

header {
    text-align: center;
    margin-bottom: 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    padding: 12px 0;
    margin: -20px 0 24px;
}

header h1 {
    font-family: 'Exo 2', sans-serif;
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0;
    color: var(--text-primary);
}

/* Usage Guide */
.usage-guide {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 1px solid #bae6fd;
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 30px;
}

.usage-guide-toggle {
    font-family: 'Exo 2', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: #0369a1;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    transition: margin-bottom 0.3s ease;
}

.usage-guide-arrow {
    font-size: 0.85rem;
    transition: transform 0.3s ease;
    display: inline-block;
}

.usage-guide.collapsed .usage-guide-arrow {
    transform: rotate(0deg);
}

.usage-guide:not(.collapsed) .usage-guide-arrow {
    transform: rotate(180deg);
}

.usage-guide:not(.collapsed) .usage-guide-toggle {
    margin-bottom: 12px;
}

.usage-guide ul {
    margin: 0;
    padding-left: 20px;
    color: var(--text-primary);
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 200px;
    opacity: 1;
}

.usage-guide.collapsed ul {
    max-height: 0;
    opacity: 0;
}

.usage-guide li {
    margin-bottom: 8px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.usage-guide li:last-child {
    margin-bottom: 0;
}

.usage-guide li strong {
    color: #0369a1;
}

/* Form Styles */
#analysisForm {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 30px;
    transition: box-shadow 0.3s ease;
}

#analysisForm:hover {
    box-shadow: 0 12px 24px -4px rgba(0, 0, 0, 0.1), 0 4px 8px -2px rgba(0, 0, 0, 0.06);
}

.form-section {
    margin-bottom: 25px;
}

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

.form-section h3 {
    font-family: 'Exo 2', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.help-text {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: normal;
    margin-top: 4px;
}

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

.help-text-inline {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: normal;
}

/* Checkbox Groups for multi-select */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
    user-select: none;
}

.checkbox-label:hover {
    border-color: var(--primary-color);
    background: #f0f7ff;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-label:has(input:checked) {
    background: #e0edff;
    border-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 500;
}

input[type="text"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: var(--card-bg);
}

select option:disabled {
    color: var(--text-secondary);
    font-style: italic;
}

input[type="text"]::placeholder,
input[type="number"]::placeholder,
textarea::placeholder {
    color: #94a3b8;
    opacity: 0.7;
}

input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* Currency Display (non-editable) */
.currency-display {
    padding: 12px 16px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    flex: 0 0 100px;
    text-align: center;
}

.input-group {
    display: flex;
    gap: 10px;
}

.input-group select {
    flex: 0 0 120px;
}

.input-group input {
    flex: 1;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group {
    margin-bottom: 15px;
}

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

/* Toggle Section */
.toggle-section {
    margin-bottom: 25px;
}

.toggle-btn {
    width: 100%;
    padding: 15px 20px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Exo 2', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s;
}

.toggle-btn:hover {
    background: #f0fdf4;
    border-color: #16a34a;
}

.toggle-icon {
    transition: transform 0.3s;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.toggle-btn.active .toggle-icon {
    transform: rotate(180deg);
}

.toggle-btn.active {
    background: #dcfce7;
    border-color: #16a34a;
    color: #15803d;
}

.advanced-options {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    margin-top: 15px;
}

.advanced-options.open {
    max-height: 5000px;
    transition: max-height 0.5s ease-in;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 10px;
    padding: 16px;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-family: 'Exo 2', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.submit-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: none;
}

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

/* Loader */
.loader {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Results */
.results {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    margin-top: 30px;
    overflow: hidden;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    border-bottom: 2px solid var(--border-color);
    background: var(--bg-color);
}

.results-header h2 {
    font-family: 'Exo 2', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background 0.2s;
}

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

/* Tabs Navigation */
.tabs-nav {
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    background: var(--bg-color);
    border-bottom: 2px solid var(--border-color);
    padding: 0 20px;
    gap: 4px;
    scrollbar-width: thin; /* Firefox */
}

.tabs-nav::-webkit-scrollbar {
    height: 4px;
}

.tabs-nav::-webkit-scrollbar-track {
    background: var(--bg-color);
}

.tabs-nav::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.tab-btn {
    padding: 14px 20px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
    margin-bottom: -2px;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(37, 99, 235, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
}

/* Tab Content Panels */
.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.results-content {
    padding: 30px;
    max-height: 70vh;
    overflow-y: auto;
}

.results-actions {
    display: flex;
    gap: 15px;
    padding: 20px 30px;
    border-top: 2px solid var(--border-color);
    background: var(--bg-color);
}

.global-actions {
    display: flex;
    gap: 15px;
    padding: 15px 0 0 0;
}

.action-btn {
    flex: 1;
    padding: 12px 24px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.download-btn {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transition: all 0.2s ease;
}

.download-btn:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.clear-btn {
    background: var(--card-bg);
    color: var(--text-primary);
}

.clear-btn:hover {
    background: var(--bg-color);
    border-color: var(--text-secondary);
}

.results-content h1,
.results-content h2,
.results-content h3 {
    font-family: 'Exo 2', sans-serif;
    margin-top: 24px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.results-content h1:first-child,
.results-content h2:first-child,
.results-content h3:first-child {
    margin-top: 0;
}

.results-content p {
    margin-bottom: 12px;
    line-height: 1.8;
}

.results-content a {
    color: var(--primary-color);
    text-decoration: underline;
    transition: color 0.2s;
}

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

.results-content a:visited {
    color: #7c3aed;
}

.results-content ul,
.results-content ol {
    margin-left: 24px;
    margin-bottom: 12px;
}

.results-content ul {
    list-style-type: disc;
}

.results-content ol {
    list-style-type: decimal;
}

.results-content li {
    margin-bottom: 8px;
}

.results-content li.sub-item {
    margin-left: 20px;
    list-style-type: circle;
}

.results-content code {
    background: var(--bg-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.results-content pre {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 12px;
}

.results-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 16px;
    margin-left: 0;
    color: var(--text-secondary);
    font-style: italic;
}

.results-content table,
.results-content .comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.95rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

.results-content table th,
.results-content table td,
.results-content .comparison-table th,
.results-content .comparison-table td {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.results-content table th,
.results-content .comparison-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.results-content table tbody tr:nth-child(even),
.results-content .comparison-table tbody tr:nth-child(even) {
    background: var(--bg-color);
}

.results-content table tbody tr:hover,
.results-content .comparison-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.1);
}

.results-content .citation {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.85em;
    vertical-align: super;
}

/* Question Flag Answers */
.red-flag {
    color: #dc2626;
    font-weight: 600;
}

.green-flag {
    color: #16a34a;
    font-weight: 600;
}

.flag-answer {
    display: block;
    margin-left: 24px;
    padding: 8px 12px;
    border-radius: 6px;
    margin-top: 6px;
    margin-bottom: 10px;
}

.red-flag-answer {
    background: #fef2f2;
    border-left: 3px solid #dc2626;
}

.green-flag-answer {
    background: #f0fdf4;
    border-left: 3px solid #16a34a;
}

/* Error */
.error {
    background: #fef2f2;
    border: 2px solid var(--error-color);
    border-radius: 12px;
    margin-top: 30px;
}

.error-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--error-color);
    color: white;
    border-radius: 10px 10px 0 0;
}

.error-header h3 {
    font-family: 'Exo 2', sans-serif;
    font-size: 1.2rem;
}

.error-content {
    padding: 20px;
    color: var(--text-primary);
}

.error-actions {
    display: flex;
    gap: 15px;
    padding: 0 20px 20px 20px;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 10px 0;
    }

    header h1 {
        /* Scale fluidly: 1.1rem at 320px → 1.8rem at 640px+ */
        font-size: clamp(1.1rem, 4.5vw, 1.8rem);
        /* Safe zones so title never overlaps toggle (left) or hamburger (right) */
        padding: 0 3rem;
    }

    #analysisForm {
        padding: 20px;
    }

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

    .input-group {
        flex-direction: column;
    }

    .input-group .currency-display {
        flex: unset;
        width: 100%;
    }

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

    .tabs-nav {
        padding: 0 10px;
    }

    .tab-btn {
        padding: 12px 16px;
        font-size: 0.9rem;
    }

    /* Move theme toggle to top-left on mobile — tighter offset for narrow screens */
    .theme-toggle {
        right: auto;
        left: 0.75rem;
        top: 0.75rem;
    }

    /* Hide standalone credits button on mobile (shown in hamburger menu) */
    .credit-btn {
        display: none !important;
    }

    /* Show credits item inside hamburger menu on mobile */
    .menu-item-credits {
        display: block;
    }
}

/* ============================================
   INPUT VALIDATION STYLES
   ============================================ */

/* Field error state */
.field-error {
    border-color: var(--error-color) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

/* Field warning state */
.field-warning {
    border-color: var(--warning-color) !important;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1) !important;
}

/* Validation error message */
.validation-error {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 6px;
    padding: 6px 10px;
    background: rgba(239, 68, 68, 0.08);
    border-radius: 6px;
    border-left: 3px solid var(--error-color);
}

/* Validation warning message */
.validation-warning {
    color: var(--warning-color);
    font-size: 0.85rem;
    margin-top: 6px;
    padding: 6px 10px;
    background: rgba(245, 158, 11, 0.08);
    border-radius: 6px;
    border-left: 3px solid var(--warning-color);
}

/* Shake animation for errors */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
    20%, 40%, 60%, 80% { transform: translateX(4px); }
}

.field-error {
    animation: shake 0.5s ease-in-out;
}

/* ============================================
   TIER SELECTOR
   ============================================ */

.tier-selector {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    justify-content: center;
}

.tier-btn {
    flex: 1;
    max-width: 200px;
    padding: 16px 24px;
    border: none;
    border-radius: 12px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
}

.tier-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.6);
    transform: translateY(-1px);
}

.tier-btn.active {
    background: #dcfce7;
    color: #15803d;
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.tier-name {
    display: block;
    font-family: 'Exo 2', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.tier-desc {
    display: block;
    font-size: 0.85rem;
    opacity: 0.8;
}

.tier-btn.active .tier-desc {
    opacity: 0.9;
}

/* ============================================
   MODE TABS
   ============================================ */

.mode-tabs {
    display: flex;
    background: var(--bg-color);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 24px;
    gap: 4px;
}

.mode-tab {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    background: transparent;
    font-family: 'Exo 2', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s ease;
}

.mode-tab:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.6);
    transform: translateY(-1px);
}

.mode-tab.active {
    background: #dcfce7;
    color: #15803d;
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

/* ============================================
   AUTOCOMPLETE DROPDOWN
   ============================================ */

.autocomplete-wrapper {
    position: relative;
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 300px;
    overflow-y: auto;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    display: none;
}

.autocomplete-dropdown.open {
    display: block;
}

.autocomplete-item {
    padding: 12px 16px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.15s;
}

.autocomplete-item:hover,
.autocomplete-item.highlighted {
    background: rgba(37, 99, 235, 0.1);
}

.autocomplete-item .country-name {
    font-weight: 500;
}

.autocomplete-item .country-currency {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.autocomplete-item .country-code {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-color);
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 8px;
}

.autocomplete-item .ac-make-name,
.autocomplete-item .ac-model-name {
    font-weight: 500;
}

.autocomplete-item.autocomplete-empty {
    color: var(--text-secondary);
    cursor: default;
    font-style: italic;
}

/* ============================================
   COMPARE MODE - CAR ROWS
   ============================================ */

.compare-car-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-color);
    border-radius: 10px;
    margin-bottom: 12px;
    border: 2px solid var(--border-color);
}

.compare-car-row .car-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.compare-car-row .form-row {
    flex: 1;
    display: flex;
    gap: 10px;
    margin: 0;
}

.compare-car-row .form-group {
    flex: 1;
    margin: 0;
}

.compare-car-row .form-group.small {
    flex: 0 0 100px;
}

.compare-car-row .form-group input {
    width: 100%;
}

/* Per-car spec options in compare mode */
.car-options {
    flex-basis: 100%;
    margin-left: 44px; /* Align with form-row (past car-number + gap) */
    margin-top: 0;
}

.car-options-toggle {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 0.8rem;
    cursor: pointer;
    padding: 2px 0;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.car-options-toggle:hover {
    text-decoration: underline;
}

.toggle-icon-sm {
    font-size: 0.75rem;
    transition: transform 0.2s;
}

.car-options-toggle.open .toggle-icon-sm {
    transform: rotate(45deg);
}

.car-options-content {
    margin-top: 6px;
    padding: 8px 12px;
    background: var(--bg-secondary, #f8f9fa);
    border-radius: 6px;
    border: 1px solid var(--border-color, #e5e7eb);
}

.car-options-row {
    display: flex;
    gap: 8px;
    margin-bottom: 6px;
}

.car-options-row:last-child {
    margin-bottom: 0;
}

.car-options-row select,
.car-options-row input {
    flex: 1;
    padding: 6px 8px;
    border: 1px solid var(--border-color, #d1d5db);
    border-radius: 4px;
    font-size: 0.8rem;
    background: white;
}

.remove-car-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: var(--error-color);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.remove-car-btn:hover {
    background: #dc2626;
    transform: scale(1.1);
}

.add-car-btn {
    width: 100%;
    padding: 14px;
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.add-car-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

/* ============================================
   MODE-SPECIFIC SECTIONS
   ============================================ */

.mode-section {
    /* Default visible - JS will toggle */
}

.mode-section.hidden {
    display: none;
}

/* Budget required indicator for recommend mode */
.budget-required-indicator {
    color: var(--error-color);
    font-size: 0.8rem;
    margin-left: 4px;
}

/* Pro tier badge */
.pro-badge {
    display: inline-block;
    padding: 2px 8px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 4px;
    margin-left: 8px;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS FOR NEW ELEMENTS
   ============================================ */

@media (max-width: 768px) {
    .tier-selector {
        flex-direction: row;
        gap: 8px;
    }

    .tier-btn {
        max-width: none;
        padding: 12px 16px;
    }

    .tier-name {
        font-size: 1rem;
    }

    .tier-desc {
        font-size: 0.75rem;
    }

    .mode-tabs {
        flex-direction: row;
        gap: 2px;
    }

    .mode-tab {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .compare-car-row {
        flex-direction: column;
        align-items: stretch;
    }

    .compare-car-row .car-number {
        align-self: flex-start;
        margin-bottom: 8px;
    }

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

    .compare-car-row .form-group.small {
        flex: 1;
    }

    .car-options {
        margin-left: 0;
    }

    .car-options-row {
        flex-direction: column;
    }

    .remove-car-btn {
        align-self: flex-end;
        margin-top: -40px;
    }
}

/* ============================================
   AUTH & CREDITS STYLES
   ============================================ */

/* Header layout — keep h1 centered, auth controls float top-right */
.header-row {
    position: relative;
}

.auth-controls {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#authLoggedIn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.auth-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.auth-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.auth-btn-sm {
    padding: 0.35rem 0.8rem;
    font-size: 0.8rem;
}

.auth-btn-text {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 0.35rem 0.5rem;
    transition: color 0.2s;
}

.auth-btn-text:hover {
    color: var(--text-primary);
}

/* Credits button */
.credit-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: #fef3c7;
    padding: 0.35rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #92400e;
    border: 1px solid #f59e0b;
    cursor: pointer;
    transition: all 0.2s;
}

.credit-btn:hover {
    border-color: #d97706;
    background: #fde68a;
}

/* Hamburger menu */
.hamburger-wrapper {
    position: relative;
}

.hamburger-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    width: 36px;
    height: 36px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    padding: 6px;
    transition: all 0.2s;
}

.hamburger-btn:hover {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.hamburger-line {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.2s;
}

.hamburger-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    z-index: 200;
    overflow: hidden;
}

.hamburger-menu.open {
    display: block;
}

.menu-user-name {
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.menu-item {
    display: block;
    width: 100%;
    padding: 0.65rem 1rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 0.9rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.15s;
}

.menu-item:hover {
    background: var(--bg-color);
}

.menu-item-danger {
    color: var(--error-color);
}

.menu-item-danger:hover {
    background: #fef2f2;
}

/* Credits item in hamburger menu — hidden on desktop, shown on mobile */
.menu-item-credits {
    display: none;
    font-weight: 600;
    color: #92400e;
    border-bottom: 1px solid var(--border-color);
}

/* Contact form */
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    box-sizing: border-box;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* Modal backdrop & container */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: fadeInBackdrop 0.2s ease-out;
}

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

.modal {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    width: 90%;
    max-width: 420px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    animation: modalSlideUp 0.25s ease-out;
}

@keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
    position: absolute;
    top: 0.75rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--text-primary);
}

/* Modal tabs (Login / Signup) */
.modal-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.modal-tab {
    flex: 1;
    background: none;
    border: none;
    padding: 0.75rem 1rem;
    font-family: 'Exo 2', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.2s, border-color 0.2s;
}

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

.modal-tab:hover {
    color: var(--text-primary);
}

/* Auth forms */
.auth-form input {
    width: 100%;
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-size: 0.95rem;
    box-sizing: border-box;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.auth-submit-btn {
    width: 100%;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Auth button spinner */
.auth-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
}

.auth-error {
    color: #ef4444;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    min-height: 1.2em;
}

/* Modal content text */
.modal-title {
    font-family: 'Exo 2', sans-serif;
    margin: 0 0 0.5rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Credit packages in insufficient credits modal */
.credit-packages {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.credit-package-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.credit-package-btn:hover {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.credit-package-btn .pkg-label {
    font-weight: 600;
}

.credit-package-btn .pkg-price {
    color: var(--primary-color);
    font-weight: 600;
}

/* Notification toast */
.notification-toast {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    color: var(--text-primary);
    z-index: 1100;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    animation: slideInRight 0.3s ease-out;
    max-width: 320px;
    font-weight: 500;
}

.notification-toast.success {
    border-color: #22c55e;
}

.notification-toast.error {
    border-color: #ef4444;
}

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

/* Custom top-up */
.custom-topup {
    margin-top: 0.25rem;
}

.custom-topup-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.custom-topup-divider::before,
.custom-topup-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.custom-topup-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.custom-topup-row .auth-btn {
    padding: 0.6rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    white-space: nowrap;
}

.custom-topup-dollar {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    line-height: 1;
}

.custom-topup-input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.custom-topup-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.custom-topup-hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.35rem;
    min-height: 1.1em;
}

/* ============================================
   LANDING PAGE
   ============================================ */

.landing-page {
    position: fixed;
    inset: 0;
    background: linear-gradient(160deg, #0f172a 0%, #1e293b 40%, #0f172a 100%);
    z-index: 900;
    overflow-y: auto;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 3rem 1rem 2rem;
}

.landing-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 1060px;
    width: 100%;
}

.landing-header {
    text-align: center;
    margin-bottom: 3rem;
}

.landing-title {
    font-family: 'Exo 2', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: #ffffff;
    margin-bottom: 0.6rem;
    line-height: 1.15;
}

.landing-tagline {
    font-family: 'Exo 2', sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    color: #94a3b8;
    font-style: italic;
    letter-spacing: 0.01em;
}

.landing-subtitle {
    font-size: 1rem;
    color: #64748b;
    margin-top: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.landing-bonus {
    display: inline-block;
    margin-top: auto;
    padding: 0.45rem 1.2rem;
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 20px;
    border: 1px solid rgba(52, 211, 153, 0.3);
    text-align: center;
    align-self: center;
}

/* Side-by-side layout: features left, auth right */
.landing-content {
    display: flex;
    gap: 2.5rem;
    width: 100%;
    align-items: stretch;
}

/* Feature cards column */
.landing-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
}

.landing-feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem 1.75rem;
    transition: all 0.3s ease;
}

.landing-feature-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(96, 165, 250, 0.4);
    transform: translateX(4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.landing-feature-card h3 {
    font-family: 'Exo 2', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 0.35rem;
}

.landing-feature-card p {
    font-size: 0.85rem;
    color: #94a3b8;
    line-height: 1.5;
}

/* Auth section — right side, stretches to match features */
.landing-auth-section {
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    width: 380px;
}

.landing-auth-card {
    width: 100%;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.landing-auth-card:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
    transform: translateY(-2px);
}

/* Override modal-tab colors inside dark landing page */
.landing-auth-card .modal-tab {
    color: var(--text-secondary);
}

.landing-auth-card .modal-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .landing-content {
        flex-direction: column;
        gap: 2rem;
    }

    .landing-auth-section {
        width: 100%;
    }

    .landing-auth-card {
        max-width: 100%;
    }

    .landing-title {
        font-size: 2rem;
    }

    .landing-tagline {
        font-size: 1.1rem;
    }

    .landing-feature-card {
        padding: 1.25rem 1rem;
    }
}

/* ============================================
   DARK MODE — hardcoded color overrides
   ============================================ */

/* Theme toggle button — fixed top-right across all pages */
.theme-toggle {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 1000;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.theme-toggle:hover {
    border-color: var(--primary-color);
    transform: scale(1.1);
}

/* Moon icon (shown in light mode) */
.theme-icon {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--text-secondary);
    position: relative;
    transition: all 0.3s ease;
    box-shadow: inset -6px -2px 0 0 var(--text-secondary);
    background: transparent;
}

/* Sun icon (shown in dark mode) */
.dark-mode .theme-icon {
    border-color: #fbbf24;
    box-shadow: none;
    background: #fbbf24;
}

/* Header */
.dark-mode header {
    background: rgba(15, 23, 42, 0.85);
    border-bottom-color: #334155;
}

/* Usage guide */
.dark-mode .usage-guide {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border-color: #334155;
}

.dark-mode .usage-guide h3 {
    color: #60a5fa;
}

.dark-mode .usage-guide strong {
    color: #e2e8f0;
}

/* Inputs & form elements */
.dark-mode input,
.dark-mode select,
.dark-mode textarea {
    background: #1e293b;
    color: #f1f5f9;
    border-color: #334155;
}

.dark-mode input::placeholder,
.dark-mode textarea::placeholder {
    color: #64748b;
}

.dark-mode input:focus,
.dark-mode select:focus,
.dark-mode textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

/* Checkbox custom styling */
.dark-mode .checkbox-group label:hover {
    background: #1e293b;
}

.dark-mode .checkbox-group input:checked + span {
    background: #1e3a5f;
}

/* Green active states — darker green for dark mode */
.dark-mode .tier-btn.active {
    background: #052e16;
    color: #4ade80;
    box-shadow: var(--shadow);
}

.dark-mode .tier-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.dark-mode .mode-tab.active {
    background: #052e16;
    color: #4ade80;
    box-shadow: var(--shadow);
}

.dark-mode .mode-tab:hover {
    background: rgba(255, 255, 255, 0.05);
}

.dark-mode .toggle-btn:hover {
    background: #0f2a1a;
    border-color: #166534;
}

.dark-mode .toggle-btn.active {
    background: #052e16;
    border-color: #166534;
    color: #4ade80;
}

.dark-mode .advanced-options.open {
    background: #0f2a1a;
    border-color: #166534;
}

/* Credit button — darker amber */
.dark-mode .credit-btn {
    background: #78350f;
    color: #fbbf24;
    border-color: #92400e;
}

.dark-mode .credit-btn:hover {
    background: #92400e;
    border-color: #b45309;
}

/* Autocomplete dropdown */
.dark-mode .autocomplete-dropdown {
    background: #1e293b;
    border-color: #334155;
}

.dark-mode .autocomplete-item:hover,
.dark-mode .autocomplete-item.highlighted {
    background: rgba(37, 99, 235, 0.15);
}

.dark-mode .country-code {
    background: #334155;
    color: #94a3b8;
}

/* Results / report area */
.dark-mode .results-container {
    background: var(--card-bg);
    border-color: var(--border-color);
}

.dark-mode .tab-btn {
    background: var(--card-bg);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.dark-mode .tab-btn.active {
    background: var(--primary-color);
    color: #ffffff;
}

/* Tables in report */
.dark-mode .comparison-table th {
    background: #1e3a5f;
    color: #f1f5f9;
}

.dark-mode .comparison-table td {
    border-color: #334155;
}

.dark-mode .comparison-table tr:hover td {
    background: rgba(37, 99, 235, 0.08);
}

/* Flag answers */
.dark-mode .red-flag-answer {
    background: #450a0a;
    border-color: #991b1b;
}

.dark-mode .green-flag-answer {
    background: #052e16;
    border-color: #166534;
}

/* Error display */
.dark-mode .error-container {
    background: #450a0a;
    border-color: #991b1b;
}

/* Notification toast */
.dark-mode .notification-toast {
    background: rgba(30, 41, 59, 0.95);
    color: #f1f5f9;
    border-color: #334155;
}

/* Modal */
.dark-mode .modal {
    background: #1e293b;
    border-color: #334155;
}

.dark-mode .modal-title {
    color: #f1f5f9;
}

.dark-mode .modal-tab {
    color: #94a3b8;
}

.dark-mode .modal-tab.active {
    color: #60a5fa;
    border-bottom-color: #60a5fa;
}

.dark-mode .credit-package-btn {
    background: #0f172a;
    border-color: #334155;
    color: #f1f5f9;
}

.dark-mode .credit-package-btn:hover {
    border-color: var(--primary-color);
    background: #1e293b;
}

/* Hamburger menu */
.dark-mode .hamburger-line {
    background: #f1f5f9;
}

.dark-mode .hamburger-menu {
    background: #1e293b;
    border-color: #334155;
}

.dark-mode .menu-item:hover {
    background: #334155;
}

.dark-mode .menu-item-credits {
    color: #fbbf24;
}

/* Car options content */
.dark-mode .car-options-content {
    background: #0f172a;
}

.dark-mode .car-options-toggle {
    background: #1e293b;
    border-color: #334155;
    color: #94a3b8;
}

.dark-mode .car-options-toggle:hover {
    background: #334155;
}

/* Scrollbar for dark mode */
.dark-mode ::-webkit-scrollbar-track {
    background: #0f172a;
}

.dark-mode ::-webkit-scrollbar-thumb {
    background: #334155;
}

.dark-mode ::-webkit-scrollbar-thumb:hover {
    background: #475569;
}

/* Landing page — light mode variant */
html:not(.dark-mode) .landing-page {
    background: linear-gradient(160deg, #f0f9ff 0%, #e0f2fe 40%, #f0f9ff 100%);
}

html:not(.dark-mode) .landing-title {
    color: #1e293b;
}

html:not(.dark-mode) .landing-tagline {
    color: #64748b;
}

html:not(.dark-mode) .landing-subtitle {
    color: #94a3b8;
}

html:not(.dark-mode) .landing-feature-card {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

html:not(.dark-mode) .landing-feature-card:hover {
    background: #ffffff;
    border-color: #93c5fd;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.12);
}

html:not(.dark-mode) .landing-feature-card h3 {
    color: #1e293b;
}

html:not(.dark-mode) .landing-feature-card p {
    color: #64748b;
}

html:not(.dark-mode) .landing-bonus {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
    border-color: rgba(16, 185, 129, 0.3);
}

html:not(.dark-mode) .landing-auth-card {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.dark-mode .landing-auth-card {
    background: #1e293b;
    border-color: #334155;
}

.dark-mode .landing-auth-card .modal-tab {
    color: #94a3b8;
}

.dark-mode .landing-auth-card .modal-tab.active {
    color: #60a5fa;
    border-bottom-color: #60a5fa;
}

/* ============================================
   PRINT STYLES - Client-side PDF fallback
   Uses browser's native print-to-PDF for
   high-quality output with full CSS support.
   ============================================ */

@media print {
    /* Hide everything except the report content */
    body {
        background: white;
        padding: 0;
        margin: 0;
    }

    .ad-space,
    .landing-page,
    header,
    .tier-selector,
    .mode-tabs,
    .usage-guide,
    #analysisForm,
    .results-header,
    .tabs-nav,
    .results-actions,
    .global-actions,
    #error,
    .close-btn {
        display: none !important;
    }

    .container {
        width: 100%;
        max-width: 100%;
        padding: 0;
        margin: 0;
    }

    .results {
        box-shadow: none;
        border-radius: 0;
        margin: 0;
    }

    .results-content {
        max-height: none !important;
        overflow: visible !important;
        padding: 0;
    }

    /* Show ALL tab panels when printing (not just active) */
    .tab-panel {
        display: block !important;
        page-break-before: auto;
    }

    /* Typography for print */
    .results-content h1 { font-size: 18pt; margin-top: 0; }
    .results-content h2 { font-size: 14pt; page-break-after: avoid; }
    .results-content h3 { font-size: 12pt; page-break-after: avoid; }
    .results-content p { orphans: 3; widows: 3; }
    .results-content li { break-inside: avoid; }

    /* Tables for print */
    .results-content table {
        page-break-inside: auto;
    }

    .results-content table thead {
        display: table-header-group;
    }

    .results-content table tr {
        break-inside: avoid;
    }

    .results-content table th {
        background-color: #2c5282 !important;
        color: white !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .results-content table tr:nth-child(even) {
        background-color: #f8fafc !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    /* Links - show URL after link text */
    .results-content a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #64748b;
    }
}