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

:root {
    /* Light mode colors */
    --bg-color: #ffffff;
    --text-color: #000000;
    --border-color: #e0e0e0;
    --spinner-track: rgba(0, 0, 0, 0.12);
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --button-bg: #000000;
    --button-text: #ffffff;
    --button-hover-bg: #333333;
    --error-bg: #ffebee;
    --error-text: #c62828;
    --info-bg: #f5f5f5;
    --info-text: #666666;
}

[data-theme="dark"] {
    /* Dark mode colors */
    --bg-color: #121212;
    --text-color: #ffffff;
    --border-color: #333333;
    --spinner-track: rgba(255, 255, 255, 0.18);
    --card-bg: #1e1e1e;
    --input-bg: #2a2a2a;
    --button-bg: #ffffff;
    --button-text: #000000;
    --button-hover-bg: #e0e0e0;
    --error-bg: #3a1a1a;
    --error-text: #ff5252;
    --info-bg: #2a2a2a;
    --info-text: #b0b0b0;
}

[data-theme="source"] {
    --bg-color: #f8f9fb;
    --text-color: #111827;
    --border-color: #d4d6dd;
    --spinner-track: rgba(17, 24, 39, 0.16);
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --button-bg: #111827;
    --button-text: #ffffff;
    --button-hover-bg: #4b5563;
    --error-bg: #ffe8eb;
    --error-text: #c2185b;
    --info-bg: #edf1ff;
    --info-text: #4b5563;
    --source-llm: #2563eb;
    --source-media: #0ea5e9;
    --source-fal: #f59e0b;
    --source-replicate: #10b981;
    --source-openrouter: #7c3aed;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 20px;
    border-bottom: 1px solid var(--border-color);
}

.header h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.header p {
    font-size: 0.9rem;
    color: var(--info-text);
}

.source-legend {
    display: none;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--info-text);
}

[data-theme="source"] .source-legend {
    display: flex;
}

.source-legend .legend-title {
    font-weight: 600;
    color: var(--text-color);
    margin-right: 4px;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--info-text);
}

.legend-item input[type="checkbox"] {
    margin: 0;
    accent-color: currentColor;
}

.legend-item .legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: currentColor;
}

[data-theme="source"] .legend-item[data-source="aa-llm"] {
    color: var(--source-llm);
}

[data-theme="source"] .legend-item[data-source="aa-media"] {
    color: var(--source-media);
}

[data-theme="source"] .legend-item[data-source="fal"] {
    color: var(--source-fal);
}

[data-theme="source"] .legend-item[data-source="replicate"] {
    color: var(--source-replicate);
}

[data-theme="source"] .legend-item[data-source="openrouter"] {
    color: var(--source-openrouter);
}

/* Theme toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--button-bg);
    color: var(--button-text);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--button-hover-bg);
}

/* Navigation */
.navigation {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 40px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 8px 14px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
    color: var(--text-color);
}

.nav-btn:hover {
    background: var(--info-bg);
}

.nav-btn.active {
    background: var(--button-bg);
    color: var(--button-text);
    border-color: var(--button-bg);
}

/* Main content */
.main-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 30px;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* Section header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 15px;
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

/* Controls */
.controls {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.controls input[type="text"] {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--input-bg);
    color: var(--text-color);
    font-size: 0.9rem;
    min-width: 200px;
}

.controls input[type="text"]:focus {
    outline: none;
    border-color: var(--button-bg);
}

.controls select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--input-bg);
    color: var(--text-color);
    font-size: 0.9rem;
    cursor: pointer;
}

.refresh-btn {
    background: var(--button-bg);
    color: var(--button-text);
    border: 1px solid var(--button-bg);
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.refresh-btn:hover {
    background: var(--button-hover-bg);
}

/* Results info */
.results-info {
    font-size: 0.85rem;
    color: var(--info-text);
    margin-bottom: 20px;
    padding: 8px 0;
}

/* Loading and error states */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    width: 100%;
    padding: 60px 20px;
    min-height: 160px;
    color: var(--info-text);
    text-align: center;
}

.loading .loading-spinner {
    display: inline-block;
    box-sizing: border-box;
    width: 44px;
    height: 44px;
    aspect-ratio: 1 / 1;
    margin: 0 auto 16px;
    border: 4px solid var(--spinner-track);
    border-top-color: var(--button-bg);
    border-radius: 50%;
    transform-origin: center;
    transform: translateZ(0);
    will-change: transform;
    animation: spin 0.75s linear infinite;
}

.error {
    background: var(--error-bg);
    color: var(--error-text);
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 20px;
    border: 1px solid var(--error-text);
    font-size: 0.9rem;
}

/* Data container */
.data-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

/* Model cards */
.model-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    border-top: 4px solid var(--border-color);
    padding: 20px;
    padding-top: 16px;
    transition: all 0.2s ease;
}

.model-card:hover {
    border-color: var(--button-bg);
}

.model-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-color);
}

.model-creator {
    color: var(--info-text);
    font-size: 0.85rem;
    margin-bottom: 16px;
    font-weight: 500;
}

[data-theme="source"] .model-card[data-source="aa-llm"] {
    border-top-color: var(--source-llm);
}

[data-theme="source"] .model-card[data-source="aa-llm"] .source-badge {
    color: var(--source-llm);
}

[data-theme="source"] .model-card[data-source="aa-media"] {
    border-top-color: var(--source-media);
}

[data-theme="source"] .model-card[data-source="aa-media"] .source-badge {
    color: var(--source-media);
}

[data-theme="source"] .model-card[data-source="fal"] {
    border-top-color: var(--source-fal);
}

[data-theme="source"] .model-card[data-source="fal"] .source-badge {
    color: var(--source-fal);
}

[data-theme="source"] .model-card[data-source="replicate"] {
    border-top-color: var(--source-replicate);
}

[data-theme="source"] .model-card[data-source="replicate"] .source-badge {
    color: var(--source-replicate);
}

[data-theme="source"] .model-card[data-source="openrouter"] {
    border-top-color: var(--source-openrouter);
}

[data-theme="source"] .model-card[data-source="openrouter"] .source-badge {
    color: var(--source-openrouter);
}

/* Model stats */
.model-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.stat-item {
    background: var(--info-bg);
    padding: 12px;
    border-radius: 4px;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--info-text);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-color);
}

/* Evaluations */
.evaluations {
    margin-top: 16px;
}

.evaluations h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.evaluation-item {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
}

.evaluation-item:last-child {
    border-bottom: none;
}

/* Pricing */
.pricing {
    background: var(--info-bg);
    padding: 12px;
    border-radius: 4px;
    margin-top: 12px;
}

.pricing h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

/* AI Agent */
.ai-agent-container {
    max-width: 100%;
    margin: 0;
    width: 100%;
}

.chat-container {
    background: var(--info-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    height: 70vh;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    margin-bottom: 20px;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    max-height: none;
}

.message {
    margin-bottom: 16px;
    padding: 16px 20px;
    border-radius: 6px;
    max-width: 85%;
    font-size: 0.95rem;
    line-height: 1.6;
}

.message.user {
    background: var(--button-bg);
    color: var(--button-text);
    margin-left: auto;
}

.message.ai {
    background: var(--info-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.chat-input {
    display: flex;
    gap: 12px;
}

.chat-input textarea {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    resize: none;
    font-family: inherit;
    font-size: 0.9rem;
    background: var(--input-bg);
    color: var(--text-color);
}

.chat-input textarea:focus {
    outline: none;
    border-color: var(--button-bg);
}

.chat-input button {
    background: var(--button-bg);
    color: var(--button-text);
    border: 1px solid var(--button-bg);
    padding: 12px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
}

.chat-input button:hover {
    background: var(--button-hover-bg);
}

.about-layout {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    align-items: stretch;
    margin-bottom: 32px;
}

.about-primary {
    flex: 1 1 480px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-intro {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    align-items: flex-start;
}

.about-portrait {
    margin: 0;
    flex: 0 0 180px;
}

.about-portrait img {
    width: 180px;
    max-width: 100%;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
    display: block;
}

.about-text {
    flex: 1 1 260px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--info-bg);
    color: var(--info-text);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    font-weight: 600;
}

.about-heading {
    font-size: 2rem;
    font-weight: 650;
    color: var(--text-color);
    margin: 0;
}

.about-lede {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-color);
}

.about-subtitle {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
}

.about-source-list {
    margin: 0 0 0 1em;
    padding: 0 0 0 0.5em;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-weight: 500;
    color: var(--text-color);
    list-style: decimal;
    list-style-position: inside;
}

.about-source-list li {
    line-height: 1.5;
}

.about-lede a {
    color: var(--button-bg);
    font-weight: 600;
}

.about-highlights {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.about-highlights li {
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.about-highlights li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.about-highlights h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-color);
}

.about-highlights p {
    margin: 0;
    color: var(--info-text);
    line-height: 1.6;
}

.about-card {
    flex: 0 0 320px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}

.about-card h4 {
    font-size: 1.2rem;
    margin: 0;
    color: var(--text-color);
}

.about-card p {
    color: var(--info-text);
    line-height: 1.6;
    margin: 0;
}

.about-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-radius: 12px;
    background: var(--button-bg);
    color: var(--button-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.about-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.18);
}

.about-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: inset 0 0 0 1px rgba(17, 24, 39, 0.04);
    color: var(--text-color);
}

.about-icon svg {
    width: 24px;
    height: 24px;
}

.about-icon img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.about-icon-invert {
    background: var(--button-text);
    color: var(--button-bg);
    border: none;
    box-shadow: none;
}

.about-icon-logo {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

.about-cta .about-icon {
    background: var(--button-text);
    border: none;
    box-shadow: none;
    color: var(--button-bg);
}

.about-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.about-link-tile {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}

.about-link-tile:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
}

.about-link-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.about-link-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
}

.about-link-subtitle {
    font-size: 0.85rem;
    color: var(--info-text);
}

.about-footer {
    margin-top: 36px;
    display: flex;
    justify-content: flex-end;
}

.about-back-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--info-bg);
    text-decoration: none;
    color: inherit;
    font-weight: 500;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.about-back-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.1);
    background: var(--card-bg);
}

@media (max-width: 960px) {
    .about-layout {
        flex-direction: column;
    }

    .about-card {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .about-primary,
    .about-card {
        padding: 24px;
        border-radius: 14px;
    }

    .about-links-grid {
        grid-template-columns: 1fr;
    }

    .about-footer {
        justify-content: flex-start;
    }

    .about-portrait {
        flex: 0 0 140px;
    }

    .about-portrait img {
        width: 140px;
    }
}

/* Speed mode toggle styles */
.speed-mode-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    user-select: none;
}

.speed-mode-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.toggle-label {
    color: var(--text-color);
    font-weight: 500;
}

.speed-mode-toggle:hover .toggle-label {
    color: var(--button-bg);
}

/* Streaming and error message styles */
.message.streaming {
    opacity: 0.9;
    border-left: 3px solid var(--button-bg);
}

.message.error .error-content {
    color: var(--error-text);
    background: var(--error-bg);
    padding: 12px;
    border-radius: 4px;
    border: 1px solid var(--error-text);
}

.typing-indicator {
    color: var(--info-text);
    font-style: italic;
    display: flex;
    align-items: center;
}

.typing-indicator::after {
    content: '●●●';
    animation: typing 1.4s infinite;
    margin-left: 4px;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.4;
    }
    30% {
        opacity: 1;
    }
}

/* Initial loading indicator */
.message.loading-initial {
    border-left: 3px solid var(--button-bg);
}

.initial-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 0;
    text-align: center;
}

.initial-loading .loading-spinner {
    width: 20px;
    height: 20px;
    aspect-ratio: 1 / 1;
    margin: 0 auto;
    border: 2px solid var(--spinner-track);
    border-top: 2px solid var(--button-bg);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translateZ(0);
}

.initial-loading .loading-text {
    color: var(--info-text);
    font-size: 0.9rem;
    font-style: italic;
    animation: none !important;
    transform: none !important;
}

/* Settings button styling */
.settings-button {
    position: fixed;
    right: 16px;
    bottom: 16px;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
    transition: all 0.2s ease;
    z-index: 1000;
}

.settings-button:hover {
    background: var(--info-bg);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.settings-icon {
    transition: filter 0.2s ease;
}

/* Dark mode - invert the black icon to white */
[data-theme="dark"] .settings-icon {
    filter: invert(1);
}

[data-theme="dark"] .settings-button {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .settings-button:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
}

/* Model dropdown styling */
.model-dropdown-container {
    position: relative;
    width: 100%;
}

.model-search-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text-color);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease;
}

.model-search-input:focus {
    border-color: var(--button-bg);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.model-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    margin-top: 4px;
}

[data-theme="dark"] .model-dropdown {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.model-option {
    padding: 10px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.model-option:last-child {
    border-bottom: none;
}

.model-option:hover {
    background: var(--info-bg);
}

.model-option-name {
    font-weight: 500;
    color: var(--text-color);
}

.model-option-details {
    font-size: 12px;
    color: var(--info-text);
}

.model-option-price {
    font-size: 11px;
    color: var(--info-text);
    opacity: 0.8;
}

.loading-indicator {
    padding: 12px;
    text-align: center;
    color: var(--info-text);
    font-style: italic;
    font-size: 14px;
}

.selected-models {
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.selected-model-tag {
    background: var(--button-bg);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.selected-model-tag .remove-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    padding: 0;
    margin: 0;
    opacity: 0.8;
}

.selected-model-tag .remove-btn:hover {
    opacity: 1;
}

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

.chart-btn.secondary:hover {
    background: var(--info-bg);
}

/* Settings sections */
.settings-section {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.settings-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.settings-section h3 {
    margin: 0 0 16px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
}

/* Form row styling */
.form-row {
    margin-bottom: 20px;
}

.form-row label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
    font-size: 14px;
}

.form-row .help-text {
    margin-top: 6px;
    font-size: 12px;
    color: var(--info-text);
    line-height: 1.4;
}

.api-key-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.api-key-actions .inline-note {
    font-size: 12px;
    color: var(--info-text);
}

#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1100;
    pointer-events: none;
}

.toast {
    min-width: 260px;
    max-width: 340px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--button-bg);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text-color);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.18);
    animation: fadeIn 0.3s ease;
    pointer-events: auto;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.toast.toast-warning {
    border-left-color: #f59e0b;
}

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

.toast button {
    background: none;
    border: none;
    color: var(--info-text);
    cursor: pointer;
    font-size: 14px;
    margin-left: auto;
}

.toast button:hover {
    color: var(--text-color);
}

.toast.fade-out {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

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

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .navigation {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .section-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .controls {
        justify-content: stretch;
    }
    
    .controls input[type="text"] {
        min-width: 0;
        flex: 1;
    }
    
    .data-container {
        grid-template-columns: 1fr;
    }
    
    .model-stats {
        grid-template-columns: 1fr;
    }
    
    .theme-toggle {
        position: static;
        margin-bottom: 20px;
        align-self: flex-end;
    }
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--info-bg);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--info-text);
}

/* Tags styling */
.tag {
    display: inline-block;
    background: var(--button-bg);
    color: var(--button-text);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 500;
    margin: 2px;
}

[data-theme="dark"] .tag {
    background: var(--button-bg);
    color: var(--button-text);
}

/* Traces styling */
.traces-container {
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--info-bg);
}

.traces-header {
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 500;
}

.traces-header:hover {
    background: var(--border-color);
}

.traces-title {
    color: var(--text-color);
}

.traces-toggle {
    color: var(--info-text);
    font-size: 0.8rem;
}

.traces-list {
    max-height: 300px;
    overflow-y: auto;
    transition: all 0.3s ease;
}

.traces-list.collapsed {
    max-height: 0;
    overflow: hidden;
}

.trace-item {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
}

.trace-item:last-child {
    border-bottom: none;
}

.trace-step {
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 4px;
}

.trace-description {
    color: var(--info-text);
    margin-bottom: 4px;
}

.trace-tool {
    color: var(--info-text);
    font-style: italic;
    margin-bottom: 4px;
}

.trace-status {
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 3px;
    font-weight: 500;
    display: inline-block;
}

.status-success {
    background: #d4edda;
    color: #155724;
}

[data-theme="dark"] .status-success {
    background: #1e3a2e;
    color: #75b798;
}

.status-error {
    background: #f8d7da;
    color: #721c24;
}

[data-theme="dark"] .status-error {
    background: #3a1e20;
    color: #f5c6cb;
}

.status-log {
    width: 100%;
    margin-top: 16px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--info-bg);
    max-height: 220px;
    overflow-y: auto;
    text-align: left;
}

.status-log-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 0.85rem;
    color: var(--text-color);
}

.status-log-item:last-child {
    margin-bottom: 0;
}

.status-log-stage {
    font-weight: 600;
    color: var(--text-color);
    min-width: 110px;
}

.status-log-message {
    flex: 1;
    color: var(--info-text);
    word-break: break-word;
}

.status-log-time {
    color: var(--info-text);
    font-size: 0.75rem;
    white-space: nowrap;
}

/* Markdown content styling */
.response-content {
    line-height: 1.6;
}

.response-content h1,
.response-content h2,
.response-content h3,
.response-content h4,
.response-content h5,
.response-content h6 {
    margin: 16px 0 8px 0;
    color: var(--text-color);
}

.response-content h1 {
    font-size: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.response-content h2 {
    font-size: 1.3rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 4px;
}

.response-content h3 {
    font-size: 1.1rem;
}

.response-content p {
    margin: 8px 0;
    color: var(--text-color);
}

.response-content ul,
.response-content ol {
    margin: 8px 0;
    padding-left: 20px;
}

.response-content li {
    margin: 4px 0;
    color: var(--text-color);
}

.response-content code {
    background: var(--info-bg);
    padding: 2px 4px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--text-color);
}

.response-content pre {
    background: var(--info-bg);
    padding: 12px;
    border-radius: 4px;
    overflow-x: auto;
    margin: 8px 0;
    border: 1px solid var(--border-color);
}

.response-content pre code {
    background: none;
    padding: 0;
}

.response-content blockquote {
    border-left: 4px solid var(--border-color);
    margin: 8px 0;
    padding: 8px 12px;
    background: var(--info-bg);
    color: var(--info-text);
}

.response-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 8px 0;
}

.response-content th,
.response-content td {
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    text-align: left;
}

.response-content th {
    background: var(--info-bg);
    font-weight: 600;
}

.response-content strong {
    font-weight: 600;
    color: var(--text-color);
}

.response-content em {
    font-style: italic;
    color: var(--info-text);
}

.response-content a {
    color: var(--button-bg);
    text-decoration: underline;
}

.response-content a:hover {
    color: var(--button-hover-bg);
}

/* QuickChart images in responses */
.response-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin: 12px 0;
    display: block;
    background: var(--card-bg);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .response-content img {
    border-color: var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}
/* Clickable model cards */
.model-card.clickable {
    cursor: pointer;
    position: relative;
}

.model-card.clickable:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.click-hint {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    color: var(--info-text);
    opacity: 0;
    transition: all 0.3s ease;
    background: var(--card-bg);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    pointer-events: none;
}

.model-card:hover .click-hint {
    opacity: 1;
    transform: translateX(-50%) translateY(-2px);
}

/* Modal styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(3px);
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    max-width: 800px;
    width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--info-text);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--info-bg);
    color: var(--text-color);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: calc(90vh - 100px);
}

/* Loading state */
.analysis-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    aspect-ratio: 1 / 1;
    margin: 0 auto 16px;
    border: 3px solid var(--spinner-track);
    border-top: 3px solid var(--button-bg);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translateZ(0);
}

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

.analysis-loading p {
    color: var(--info-text);
    margin: 0;
    font-size: 0.95rem;
}

/* Analysis content */
.analysis-content {
    line-height: 1.6;
}

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

.analysis-text h1,
.analysis-text h2,
.analysis-text h3 {
    color: var(--text-color);
    margin-top: 24px;
    margin-bottom: 12px;
}

.analysis-text h2 {
    border-bottom: 2px solid var(--button-bg);
    padding-bottom: 8px;
}

.analysis-text ul,
.analysis-text ol {
    padding-left: 20px;
}

.analysis-text li {
    margin-bottom: 6px;
}

.analysis-text code {
    background: var(--info-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9em;
}

.analysis-text pre {
    background: var(--info-bg);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 16px 0;
}

.analysis-text blockquote {
    border-left: 4px solid var(--button-bg);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--info-text);
    font-style: italic;
}

.analysis-meta {
    font-size: 0.85rem;
    color: var(--info-text);
    margin-bottom: 12px;
}

.analysis-actions {
    display: flex;
    justify-content: flex-end;
    margin: 16px 0;
    gap: 8px;
}

.analysis-actions .primary-btn.secondary {
    background: transparent;
    border: 1px solid var(--button-bg);
    color: var(--button-bg);
}

.analysis-actions .primary-btn.secondary:hover {
    background: rgba(0, 0, 0, 0.05);
}

.match-reason {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--info-text);
}

.modal-subtitle {
    font-size: 0.85rem;
    color: var(--info-text);
    margin-top: 4px;
}

.modal-title-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.modal-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.modal-tab {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 8px 16px;
    font-size: 0.85rem;
    color: var(--info-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-tab:hover {
    border-color: var(--button-bg);
    color: var(--text-color);
}

.modal-tab.active {
    background: var(--button-bg);
    color: var(--button-text);
    border-color: var(--button-bg);
}

.modal-tab-content {
    display: none;
}

.modal-tab-content.active {
    display: block;
}

.analysis-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 220px;
}

.analysis-intro {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 24px;
    border: 1px dashed var(--border-color);
    border-radius: 10px;
    background: var(--info-bg);
    text-align: center;
}

.analysis-intro p {
    margin: 0;
    color: var(--info-text);
    font-size: 0.92rem;
    max-width: 420px;
}

.primary-btn {
    background: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 999px;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.primary-btn:hover {
    transform: translateY(-1px);
    background: var(--button-hover-bg);
}

.primary-btn:focus-visible {
    outline: 2px solid var(--button-bg);
    outline-offset: 2px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.detail-grid.single-column {
    grid-template-columns: 1fr;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
}

.detail-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--info-text);
}

.detail-value {
    font-size: 0.95rem;
    color: var(--text-color);
    font-weight: 600;
}

.empty-state {
    padding: 16px;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--info-text);
    background: var(--info-bg);
}

.detail-list {
    list-style: none;
    padding: 0;
    margin: 12px 0 0 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.detail-list li {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    font-size: 0.9rem;
    color: var(--text-color);
}

.collapsible-section {
    margin-top: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    overflow: hidden;
}

.collapsible-section summary {
    cursor: pointer;
    padding: 10px 14px;
    font-weight: 600;
    color: var(--text-color);
    background: var(--info-bg);
    list-style: none;
}

.collapsible-section summary::-webkit-details-marker {
    display: none;
}

.collapsible-section summary::marker {
    display: none;
}

.collapsible-section .detail-list {
    margin: 0;
    padding: 12px 16px 16px 16px;
}

.modal-subsection {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 12px;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.inline-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--info-text);
    font-size: 0.85rem;
}

.inline-loading::before {
    content: '';
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    border-top-color: var(--button-bg);
    animation: spin 0.7s linear infinite;
}

.detail-description {
    font-size: 0.9rem;
    color: var(--info-text);
    line-height: 1.5;
}

.analysis-section {
    margin-top: 24px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

.analysis-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.analysis-placeholder {
    font-size: 0.85rem;
    color: var(--info-text);
    margin: 0;
}

.analysis-output {
    min-height: 80px;
}

.analysis-progress {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--info-text);
    font-size: 0.9rem;
}

.analysis-progress .progress-dots {
    display: inline-flex;
    gap: 4px;
}

.analysis-progress .progress-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    animation: pulse 1.2s infinite ease-in-out;
}

.analysis-progress .progress-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.analysis-progress .progress-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes pulse {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

.tag-pill {
    display: inline-block;
    padding: 2px 6px;
    margin-left: 6px;
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.12);
    color: var(--button-bg);
    font-size: 0.7rem;
}

.secondary-text {
    font-size: 0.85rem;
    color: var(--info-text);
}

.tag-container {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.external-link {
    color: var(--button-bg);
    text-decoration: none;
}

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

.source-badge {
    display: none;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--info-text);
    margin-bottom: 10px;
}

[data-theme="source"] .source-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

[data-theme="source"] .source-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.8;
}

.links-block {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 12px;
}

.modal-overview > * + * {
    margin-top: 16px;
}


/* Analysis trace */
.analysis-trace {
    margin-top: 24px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.analysis-trace summary {
    background: var(--info-bg);
    padding: 12px 16px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-color);
    user-select: none;
}

.analysis-trace summary:hover {
    background: var(--border-color);
}

.trace-content {
    padding: 16px;
    background: var(--card-bg);
    color: var(--info-text);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Error state */
.analysis-error {
    text-align: center;
    padding: 40px 20px;
}

.analysis-error h3 {
    color: #ff6b6b;
    margin-bottom: 16px;
}

.analysis-error p {
    color: var(--info-text);
    margin-bottom: 12px;
}

.agent-warning {
    display: none;
    margin-top: 8px;
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 6px;
    background: rgba(234, 179, 8, 0.15);
    border: 1px solid rgba(234, 179, 8, 0.35);
    color: #92400e;
    font-size: 0.9rem;
    line-height: 1.4;
}

.agent-warning.expensive {
    background: rgba(248, 113, 113, 0.15);
    border-color: rgba(248, 113, 113, 0.35);
    color: #991b1b;
}

.error-details {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.85rem;
    background: var(--info-bg);
    padding: 12px;
    border-radius: 6px;
    color: #ff6b6b;
}

/* Chart and Visualization Styles */
.charts-container {
    margin: 20px 0;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.chart-container {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.chart-header h3 {
    margin: 0;
    color: var(--text-color);
    font-size: 1.2rem;
    font-weight: 600;
}

.chart-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.chart-btn {
    background: var(--button-bg);
    color: var(--button-text);
    border: 1px solid var(--button-bg);
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.chart-btn:hover {
    background: var(--button-hover-bg);
}

.chart-canvas-wrapper {
    position: relative;
    height: 400px;
    margin: 10px 0;
}

.chart-canvas-wrapper canvas {
    max-width: 100%;
    height: 100% !important;
}

.chart-type-select {
    background: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.chart-type-select:hover {
    border-color: var(--button-bg);
}

.chart-type-select:focus {
    outline: none;
    border-color: var(--button-bg);
}

/* Chart preset styles */
.chart-preset-controls {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.preset-btn {
    background: var(--info-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}

.preset-btn:hover {
    background: var(--button-bg);
    color: var(--button-text);
}

.preset-btn.active {
    background: var(--button-bg);
    color: var(--button-text);
    border-color: var(--button-bg);
}


/* Loading states for charts */
.chart-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
    color: var(--info-text);
}

.chart-loading::after {
    content: '📊 Generating chart...';
    animation: pulse 1.5s ease-in-out infinite alternate;
}

@keyframes pulse {
    from {
        opacity: 0.6;
    }
    to {
        opacity: 1;
    }
}

/* Export menu styles */
.export-menu {
    position: relative;
    display: inline-block;
}

.export-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    min-width: 120px;
}

.export-menu:hover .export-dropdown {
    display: block;
}

.export-option {
    padding: 8px 12px;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}

.export-option:last-child {
    border-bottom: none;
}

.export-option:hover {
    background: var(--info-bg);
}

/* Chart tooltip enhancements */
.chartjs-tooltip {
    background: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-color) !important;
    border-radius: 4px !important;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1) !important;
}

/* Responsive chart styles */
@media (max-width: 768px) {
    .chart-header {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .chart-controls {
        justify-content: center;
    }
    
    .chart-canvas-wrapper {
        height: 300px;
    }
    
    .chart-container {
        padding: 15px;
    }
}

/* Dark theme chart adjustments */
[data-theme="dark"] .chart-container {
    background: var(--card-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .chart-btn {
    background: var(--button-bg);
    color: var(--button-text);
}

/* Chart animation styles */
.chart-container {
    animation: chartSlideIn 0.5s ease-out;
}

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

/* Interactive chart states */
.chart-container:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: box-shadow 0.3s ease;
}

/* Chart fullscreen mode */
.chart-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    background: var(--bg-color);
    padding: 20px;
}

.chart-fullscreen .chart-canvas-wrapper {
    height: calc(100vh - 120px);
}

.fullscreen-btn {
    background: var(--info-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.75rem;
}

.fullscreen-btn:hover {
    background: var(--button-bg);
    color: var(--button-text);
}
/* Chart preset and template controls */
.chart-preset-select {
    background: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 0.75rem;
    cursor: pointer;
    margin-right: 8px;
    transition: all 0.2s ease;
}

.chart-preset-select:hover {
    border-color: var(--button-bg);
}

.chart-preset-select:focus {
    outline: none;
    border-color: var(--button-bg);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.chart-templates {
    padding: 10px 16px;
    background: var(--info-bg);
    border-top: 1px solid var(--border-color);
}

.template-info {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.template-btn {
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.7rem;
    transition: all 0.2s ease;
}

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

/* Chart message notifications */
.chart-message {
    animation: chartMessageSlide 0.3s ease-out;
}

@keyframes chartMessageSlide {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 0.9;
        transform: translateX(0);
    }
}

/* Chart comparison layout */
.chart-comparison-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin: 20px 0;
    overflow: hidden;
}

.comparison-header {
    background: var(--info-bg);
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.comparison-header h3 {
    margin: 0;
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 600;
}

.comparison-controls {
    display: flex;
    gap: 8px;
}

.comparison-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
    padding: 20px;
}

.comparison-charts.layout-vertical {
    grid-template-columns: 1fr;
}

.comparison-charts.layout-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

.comparison-chart-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 15px;
    min-height: 300px;
    position: relative;
}

.comparison-chart-item .chart-container {
    margin: 0;
    border: none;
    box-shadow: none;
    background: transparent;
}

/* Preset-specific styling enhancements */
.chart-container[data-preset="professional"] {
    background: #fafbfc;
    border-color: #e1e8ed;
}

.chart-container[data-preset="vibrant"] {
    background: linear-gradient(135deg, #fff5f5 0%, #f0f9ff 100%);
    border-color: #f39c12;
}

.chart-container[data-preset="minimal"] {
    background: #fdfdfd;
    border-color: #e8e8e8;
}

.chart-container[data-preset="dark"] {
    background: #2c3e50;
    border-color: #34495e;
    color: #ecf0f1;
}

.chart-container[data-preset="dark"] .chart-header h3,
.chart-container[data-preset="dark"] .chart-btn {
    color: #ecf0f1;
}

.chart-container[data-preset="neon"] {
    background: #0a0a0a;
    border-color: #003366;
    color: #00ff88;
}

.chart-container[data-preset="neon"] .chart-header h3 {
    color: #00ff88;
    text-shadow: 0 0 10px #00ff88;
}

.chart-container[data-preset="pastel"] {
    background: linear-gradient(135deg, #ffeef8 0%, #f0f8ff 100%);
    border-color: #dda0dd;
}

/* Advanced export dialog styles */
.export-options-dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    z-index: 2000;
    min-width: 300px;
    max-width: 90vw;
}

.export-dialog-header {
    background: var(--info-bg);
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.export-dialog-body {
    padding: 20px;
}

.export-option-group {
    margin-bottom: 15px;
}

.export-option-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--text-color);
}

.export-option-group input,
.export-option-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--input-bg);
    color: var(--text-color);
}

.export-dialog-actions {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Responsive adjustments for presets */
@media (max-width: 768px) {
    .chart-preset-select {
        font-size: 0.65rem;
        padding: 3px 6px;
    }
    
    .template-btn {
        font-size: 0.6rem;
        padding: 3px 6px;
    }
    
    .comparison-charts {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 15px;
    }
    
    .comparison-chart-item {
        padding: 10px;
        min-height: 250px;
    }
    
    .chart-message {
        right: 5px;
        top: 5px;
        font-size: 11px;
        padding: 6px 10px;
    }
}

/* Theme-specific preset adjustments */
[data-theme="dark"] .chart-preset-select,
[data-theme="dark"] .template-btn {
    background: var(--input-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

[data-theme="dark"] .chart-preset-select:hover,
[data-theme="dark"] .template-btn:hover {
    background: var(--button-bg);
    color: var(--button-text);
}

[data-theme="dark"] .export-options-dialog {
    background: var(--card-bg);
    border-color: var(--border-color);
}