:root, html[data-theme="light"] { --color-background: #f8f9fa; --color-surface: #ffffff; --color-primary-text: #202124; --color-secondary-text: #5f6368; --color-border: #e0e0e0; --color-accent: #1a73e8; --color-shadow: rgba(0,0,0,0.04); --color-card-bg: #ffffff; --color-hover: #f5f5f5; --transition-curve: cubic-bezier(0.4, 0, 0.2, 1); --transition-duration: 0.3s; }
html[data-theme="dark"] { --color-background: #121212; --color-surface: #1e1e1e; --color-primary-text: #e8eaed; --color-secondary-text: #9aa0a6; --color-border: #3c4043; --color-accent: #8ab4f8; --color-shadow: rgba(0,0,0,0.2); --color-card-bg: #1e1e1e; --color-hover: #2a2a2a; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background-color: var(--color-background); color: var(--color-primary-text); display: flex; flex-direction: column; min-height: 100vh; transition: background-color var(--transition-duration), color var(--transition-duration); }
main { flex-grow: 1; }
.initial-view-wrapper { display: flex; flex-grow: 1; justify-content: center; align-items: flex-start; padding-top: 25vh; }
body.results-active .initial-view-wrapper, body.likes-active .initial-view-wrapper, body.privacy-active .initial-view-wrapper, body.terms-active .initial-view-wrapper, body.company-active .initial-view-wrapper, body.contact-active .initial-view-wrapper { display: none; }
.header-bar { position: fixed; top: 0; left: 0; right: 0; z-index: 1001; padding: 0.75rem 1rem; transform: translateY(-100%); transition: transform 0.5s var(--transition-curve); background: color-mix(in srgb, var(--color-surface) 85%, transparent); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--color-border); }
body.results-active .header-bar, body.likes-active .header-bar, body.privacy-active .header-bar, body.terms-active .header-bar, body.company-active .header-bar, body.contact-active .header-bar, body.error-active .header-bar { transform: translateY(0); }
.header-content { display: flex; align-items: center; gap: 1rem; max-width: 1100px; margin: 0 auto; width: 100%; }
.results-view { display: none; padding: 110px 1rem 2rem; }
body.results-active #search-results-view, body.likes-active #likes-view, body.privacy-active #privacy-view, body.terms-active #terms-view, body.company-active #company-view, body.contact-active #contact-view, body.error-active #error-view { display: block; }
.results-container { max-width: 1100px; margin: 0 auto; }
.logo-link { text-decoration: none; display: flex; align-items: center; flex-shrink: 0; }
.main-logo { font-size: 3.5rem; font-weight: 600; color: var(--color-primary-text); letter-spacing: -2px; }
.header-logo { height: 34px; width: auto; vertical-align: middle; }
.logo-dark { display: none; } .logo-light { display: inline-block; }
html[data-theme="dark"] .logo-dark { display: inline-block; } html[data-theme="dark"] .logo-light { display: none; }
.tagline { margin-top: 0.25rem; font-size: 1.125rem; color: var(--color-secondary-text); }
.search-form-container { position: relative; width: 100%; max-width: 580px; margin-top: 2rem; }
.header-bar .search-form-container { margin-top: 0; flex-grow: 1; max-width: none; }
.search-input { width: 100%; height: 48px; padding: 0 48px 0 20px; border: 1px solid var(--color-border); border-radius: 12px; font-size: 1rem; color: var(--color-primary-text); background-color: var(--color-surface); transition: all var(--transition-duration) var(--transition-curve); box-shadow: 0 1px 2px var(--color-shadow); }
.search-input:hover { border-color: color-mix(in srgb, var(--color-border) 80%, black); box-shadow: 0 4px 8px var(--color-shadow); }
.search-input:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-accent) 15%, transparent); }
.search-submit-button { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); height: 36px; width: 36px; border-radius: 8px; color: var(--color-secondary-text); transition: all var(--transition-duration) var(--transition-curve); }
.search-submit-button:hover { color: var(--color-accent); background-color: color-mix(in srgb, var(--color-accent) 10%, transparent); }
.popular-questions { margin-top: 3rem; text-align: center; width: 100%; max-width: 700px; }
.popular-questions h3 { font-size: 0.875rem; font-weight: 500; color: var(--color-secondary-text); margin-bottom: 1rem; }
.questions-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; }
.question-pill { background-color: var(--color-surface); border: 1px solid var(--color-border); color: var(--color-secondary-text); padding: 0.5rem 1rem; border-radius: 20px; font-size: 0.875rem; cursor: pointer; transition: all 0.2s ease; display: inline-flex; align-items: center; gap: 0.5rem; }
.question-pill:hover { background-color: color-mix(in srgb, var(--color-surface) 80%, black); border-color: color-mix(in srgb, var(--color-border) 80%, black); color: var(--color-primary-text); transform: translateY(-2px); }
.question-pill svg { width: 1rem; height: 1rem; opacity: 0.6; }
.card { background-color: var(--color-surface); border: 1px solid var(--color-border); border-radius: 16px; margin-bottom: 2rem; box-shadow: 0 4px 25px var(--color-shadow); opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--transition-curve), transform 0.6s var(--transition-curve); padding: 2.5rem; }
body.results-active #resultsContent > *, body.likes-active #likes-view .card, body.privacy-active #privacy-view .card, body.terms-active #terms-view .card, body.company-active #company-view .card, body.contact-active #contact-view .card, body.error-active #error-view .card { opacity: 1; transform: translateY(0); transition-delay: 0.2s;}
#resultsContent > *:last-child { margin-bottom: 0; }
.card h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.5px; margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--color-border); }
#semanticResponseWrapper h2, #semanticResponseWrapper h3 { font-size: 1.5rem; font-weight: 700; margin-top: 2rem; margin-bottom: 1rem; padding: 0; border: none; }
#semanticResponseWrapper ul { list-style-type: disc; padding-left: 1.5rem; margin-top: 1rem; }
#semanticResponseWrapper li { margin-bottom: 0.75rem; }
.card p { line-height: 1.7; font-size: 1.05rem; display: block; }
#semanticResponseWrapper blockquote, .card blockquote { border-left: 4px solid var(--color-accent); margin: 1.5em 0; padding: 0.5em 1.5em; color: var(--color-secondary-text); background-color: color-mix(in srgb, var(--color-background) 50%, transparent); }
#semanticResponseWrapper .citation a { text-decoration: none; color: var(--color-accent); font-weight: 600; font-size: 0.75rem; vertical-align: super; line-height: 0; }
.card footer { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--color-border); display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.card-footer-actions { display: flex; gap: 0.25rem; }
.like-btn.liked svg { fill: var(--color-accent); color: var(--color-accent); }
.liked-item { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; border-bottom: 1px solid var(--color-border); transition: background-color 0.2s ease; }
.liked-item:last-child { border-bottom: none; } .liked-item:hover { background-color: var(--color-background); }
.liked-item-title { font-weight: 500; cursor: pointer; flex-grow: 1; }
.liked-item-title:hover { color: var(--color-accent); }
.no-likes-message { text-align: center; padding: 3rem; color: var(--color-secondary-text); }

.card-section { padding: 1.5rem 0; }

/* Video Styles */
.aspect-video { aspect-ratio: 16 / 9; }
.video-container { position: relative; }
.video-container iframe { border-radius: 8px; transition: transform 0.2s ease; }
.video-container:hover iframe { transform: scale(1.02); }
.action-button { display: inline-flex; align-items: center; background-color: transparent; color: var(--color-secondary-text); padding: 0.5rem; border-radius: 8px; border: 1px solid transparent; transition: all 0.2s ease; cursor: pointer; }
.action-button:hover { border-color: var(--color-border); background-color: var(--color-background); color: var(--color-primary-text); }
.site-footer { background-color: color-mix(in srgb, var(--color-surface) 50%, transparent); color: var(--color-secondary-text); font-size: 0.875rem; border-top: 1px solid var(--color-border); }
.footer-content { padding: 0 1rem; max-width: 1800px; margin: 0 auto; }
.footer-row { display: flex; align-items: center; padding: 0.75rem 0; flex-wrap: wrap; gap: 1.5rem; }
.footer-links-left, .footer-links-center, .footer-links-right { display: flex; gap: 1.5rem; }
.footer-links-center { justify-content: center; flex-grow: 1; }
.footer-links-right { margin-left: auto; }
@media (max-width: 768px) { .footer-row { flex-direction: column; } .footer-links-left, .footer-links-center, .footer-links-right { width: 100%; justify-content: center; margin: 0.5rem 0; } .footer-links-left { order: 1; } .footer-links-right { order: 2; } .footer-links-center { order: 3; } }
.footer-links a, .footer-link-button { text-decoration: none; background: none; border: none; padding: 0; color: var(--color-secondary-text); cursor: pointer; display: inline-flex; align-items: center; gap: 0.5rem; }
.footer-links a:hover, .footer-link-button:hover { text-decoration: underline; }
.modal-overlay { position: fixed; inset: 0; z-index: 1050; background-color: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity var(--transition-duration) ease; }
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal-content { background-color: var(--color-surface); border-radius: 16px; padding: 2rem; width: 90%; max-width: 500px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); transform: scale(0.95); transition: transform var(--transition-duration) var(--transition-curve); }
.modal-overlay.active .modal-content { transform: scale(1); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.modal-header h2 { font-size: 1.25rem; font-weight: 600; }
.modal-section { margin-top: 1.5rem; }
.modal-section h3 { font-size: 0.875rem; font-weight: 500; color: var(--color-secondary-text); margin-bottom: 0.75rem; }
.modal-buttons { display: grid; gap: 0.75rem; }
.modal-buttons.grid-3 { grid-template-columns: repeat(3, 1fr); }
.modal-buttons.grid-2 { grid-template-columns: repeat(2, 1fr); }
.modal-buttons button { padding: 0.5rem; border-radius: 8px; border: 2px solid var(--color-border); cursor: pointer; transition: all 0.2s ease; }
.modal-buttons button.selected { border-color: var(--color-accent); background-color: color-mix(in srgb, var(--color-accent) 10%, transparent); }
.loader-container { padding: 4rem; text-align: center; color: var(--color-secondary-text); }
.spinner { width: 36px; height: 36px; border: 3px solid var(--color-border); border-top-color: var(--color-primary-text); border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto 1rem auto; }
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }
.header-action-button, .close-results-button { z-index: 1002; width: 40px; height: 40px; flex-shrink: 0; border-radius: 50%; border: none; background-color: var(--color-surface); color: var(--color-secondary-text); cursor: pointer; display: none; align-items: center; justify-content: center; transition: all 0.2s ease; border: 1px solid var(--color-border); }
.header-action-button:hover, .close-results-button:hover { transform: scale(1.1); border-color: var(--color-primary-text); color: var(--color-primary-text); }
body.results-active .header-action-button, body.likes-active .header-action-button, body.privacy-active .header-action-button, body.terms-active .header-action-button, body.company-active .header-action-button, body.contact-active .header-action-button, body.error-active .header-action-button { display: flex; }
body.results-active .close-results-button, body.likes-active .close-results-button, body.privacy-active .close-results-button, body.terms-active .close-results-button, body.company-active .close-results-button, body.contact-active .close-results-button, body.error-active .close-results-button { display: flex; }
.close-results-button:hover { transform: scale(1.1) rotate(90deg); }

/* Related Queries Styles */
.related-query-btn {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-primary-text);
    padding: 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s var(--transition-curve);
    text-align: left;
    line-height: 1.4;
    font-weight: 500;
}

.related-query-btn:hover {
    background-color: var(--color-background);
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.related-query-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px var(--color-shadow);
}

/* Enhanced Loading Indicator Styles */
.loading-progress {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    padding: 3rem 2rem;
    text-align: center;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1.2s linear infinite;
}

.loading-message {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-primary-text);
    margin-bottom: 0.5rem;
    min-height: 1.5rem;
    transition: opacity 0.3s ease;
}

.loading-submessage {
    font-size: 0.9rem;
    color: var(--color-secondary-text);
    line-height: 1.4;
    max-width: 400px;
    margin: 0 auto;
}

.loading-dots {
    display: inline-block;
    width: 20px;
    text-align: left;
}

.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

.loading-timeout-warning {
    background-color: color-mix(in srgb, #ff9800 10%, transparent);
    border: 1px solid color-mix(in srgb, #ff9800 30%, transparent);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--color-primary-text);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.loading-timeout-warning.show {
    opacity: 1;
    transform: translateY(0);
}

/* Code Block Styles */
.code-block {
    position: relative;
    background-color: #1a1a1a;
    border: 1px solid #333;
    border-radius: 12px;
    margin: 1.5rem 0;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.code-block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: #2a2a2a;
    border-bottom: 1px solid #333;
}

.code-block-language {
    font-size: 0.75rem;
    font-weight: 500;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.code-copy-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: transparent;
    border: 1px solid #444;
    color: #ccc;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.code-copy-button:hover {
    background-color: #333;
    border-color: #555;
    color: #fff;
}

.code-copy-button.copied {
    background-color: #0f5132;
    border-color: #198754;
    color: #d1e7dd;
}

.code-copy-button svg {
    width: 14px;
    height: 14px;
}

.code-block-content {
    padding: 1rem;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    padding: 0;
    background: none;
    border: none;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    color: #e6e6e6;
    white-space: pre;
    overflow-x: auto;
}

.code-block code {
    background: none;
    padding: 0;
    border-radius: 0;
    font-family: inherit;
    color: inherit;
}

/* Syntax highlighting colors */
.code-block .keyword { color: #ff79c6; }
.code-block .string { color: #f1fa8c; }
.code-block .comment { color: #6272a4; font-style: italic; }
.code-block .number { color: #bd93f9; }
.code-block .function { color: #50fa7b; }
.code-block .variable { color: #8be9fd; }
.code-block .operator { color: #ff79c6; }
.code-block .tag { color: #ff79c6; }
.code-block .attribute { color: #50fa7b; }
.code-block .value { color: #f1fa8c; }

/* Responsive adjustments */
/* Comparison Table Styles */
.comparison-card {
    margin: 20px 0;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 0;
    box-shadow: 0 4px 25px var(--color-shadow);
    overflow: hidden;
}

.comparison-card h2 {
    margin: 0;
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--color-accent), #4285f4);
    color: white;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}

.comparison-card h2 svg {
    width: 20px;
    height: 20px;
    margin-right: 8px;
}

.comparison-table-wrapper {
    overflow-x: auto;
    padding: 0;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    background: var(--color-card-bg);
    font-size: 14px;
}

.comparison-table thead {
    background: var(--color-background);
}

.comparison-table th {
    padding: 16px 20px;
    text-align: left;
    font-weight: 600;
    color: var(--color-primary-text);
    border-bottom: 2px solid var(--color-border);
    position: sticky;
    top: 0;
    background: var(--color-background);
    z-index: 1;
}

.comparison-table .comparison-aspect {
    background: linear-gradient(135deg, var(--color-accent), #4285f4);
    color: white;
    font-weight: 700;
    min-width: 150px;
    position: sticky;
    left: 0;
    z-index: 2;
}

.comparison-table .comparison-subject {
    min-width: 200px;
    text-align: center;
    background: var(--color-background);
    color: var(--color-accent);
    font-weight: 700;
}

.comparison-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
    line-height: 1.5;
}

.comparison-table .comparison-aspect-cell {
    background: var(--color-accent);
    color: white;
    font-weight: 600;
    position: sticky;
    left: 0;
    z-index: 1;
    border-right: 2px solid var(--color-border);
}

.comparison-table .comparison-value-cell {
    background: var(--color-card-bg);
    color: var(--color-primary-text);
    text-align: center;
    transition: background-color 0.2s ease;
}

.comparison-table tbody tr:hover .comparison-value-cell {
    background: var(--color-hover);
}

.comparison-table tbody tr:nth-child(even) .comparison-value-cell {
    background: color-mix(in srgb, var(--color-background) 30%, transparent);
}

.comparison-table tbody tr:nth-child(even):hover .comparison-value-cell {
    background: var(--color-hover);
}

@media (max-width: 768px) {
    .code-block {
        margin: 1rem -1rem;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
    
    .code-block-content {
        padding: 0.75rem;
    }
    
    .code-block pre {
        font-size: 0.8rem;
    }
    
    .comparison-card h2 {
        padding: 16px 20px;
        font-size: 1.1rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 12px 16px;
        font-size: 13px;
    }
    
    .comparison-table .comparison-aspect {
        min-width: 120px;
    }
    
    .comparison-table .comparison-subject {
        min-width: 150px;
    }
}

@media (max-width: 480px) {
    .comparison-card h2 {
        padding: 12px 16px;
        font-size: 1rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 10px 12px;
        font-size: 12px;
    }
    
    .comparison-table .comparison-aspect {
        min-width: 100px;
    }
    
    .comparison-table .comparison-subject {
        min-width: 120px;
    }
}