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

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    --color-code-bg: #1e293b;
    --color-code-text: #f1f5f9;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
        "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
        sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.landing {
    min-height: 100vh;
}

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    font-weight: 400;
}

.cta-box {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

.cta-label {
    display: block;
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.url-container {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    background: var(--color-code-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
}

.server-url {
    flex: 1;
    font-family:
        "Monaco", "Menlo", "Ubuntu Mono", "Consolas", "source-code-pro",
        monospace;
    font-size: 1rem;
    color: var(--color-code-text);
    background: transparent;
    border: none;
    outline: none;
}

.copy-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
    white-space: nowrap;
    width: 110px;
}

.copy-btn:hover {
    background: var(--color-primary-dark);
}

.copy-btn:active {
    transform: translateY(1px);
}

.client-tabs {
    margin-top: var(--spacing-xl);
}

.tab-buttons {
    display: flex;
    gap: var(--spacing-xs);
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-light);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

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

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

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

.tab-description {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-size: 0.9375rem;
    text-align: center;
}

.tab-note {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-style: italic;
}

.config-snippet {
    margin-top: 0;
    position: relative;
    text-align: left;
}

.config-snippet.narrow {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.config-snippet pre {
    background: var(--color-code-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    overflow-x: auto;
    margin: 0;
}

.config-snippet code {
    font-family:
        "Monaco", "Menlo", "Ubuntu Mono", "Consolas", "source-code-pro",
        monospace;
    font-size: 0.875rem;
    color: var(--color-code-text);
    line-height: 1.6;
    text-align: left;
    display: block;
}

.copy-config-btn {
    width: 100%;
    margin-top: var(--spacing-sm);
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

.copy-config-btn:hover {
    background: var(--color-primary-dark);
}

.copy-config-btn:active {
    transform: translateY(1px);
}

.install-btn {
    display: inline-block;
    width: 100%;
    text-align: center;
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    transition: background 0.2s ease;
}

.install-btn:hover {
    background: var(--color-primary-dark);
}

.install-btn:active {
    transform: translateY(1px);
}

.config-location {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.config-location code {
    background: var(--color-code-bg);
    color: var(--color-code-text);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.8125rem;
    font-family:
        "Monaco", "Menlo", "Ubuntu Mono", "Consolas", "source-code-pro",
        monospace;
}

.config-location strong {
    color: var(--color-text);
}

.cta-note {
    margin-top: var(--spacing-md);
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-style: italic;
}

.data-sources {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    background: var(--color-bg);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.sources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.source-item {
    background: white;
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    min-height: 100px;
    justify-content: center;
}

.source-item img {
    width: auto;
    height: 40px;
    max-width: 100%;
    object-fit: contain;
    flex-shrink: 0;
}

.source-item-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    text-align: center;
}

.source-item:not(:has(img)) {
    padding: var(--spacing-md) var(--spacing-sm);
}

.source-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.sources-expandable {
    margin-top: var(--spacing-lg);
}

.sources-toggle {
    width: 100%;
    text-align: center;
    color: var(--color-primary);
    font-weight: 600;
    cursor: pointer;
    padding: var(--spacing-md);
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
    user-select: none;
    font-size: 1rem;
}

.sources-toggle:hover {
    background: var(--color-bg-alt);
    border-color: var(--color-primary);
}

.sources-toggle::after {
    content: " ▼";
    font-size: 0.75rem;
    margin-left: var(--spacing-xs);
    display: inline-block;
    transition: transform 0.3s ease;
}

.sources-expandable.expanded .sources-toggle::after {
    transform: rotate(180deg);
}

.sources-full-list {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    margin-top: 0;
    transition:
        max-height 0.6s ease,
        opacity 0.4s ease,
        margin-top 0.4s ease;
}

.sources-expandable.expanded .sources-full-list {
    max-height: 3000px;
    opacity: 1;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
}

.sources-columns {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
    align-items: start;
}

.sources-column {
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}

.sources-expandable.expanded .sources-column:nth-child(1) {
    animation-delay: 0.1s;
}

.sources-expandable.expanded .sources-column:nth-child(2) {
    animation-delay: 0.15s;
}

.sources-expandable.expanded .sources-column:nth-child(3) {
    animation-delay: 0.2s;
}

.sources-expandable.expanded .sources-column:nth-child(4) {
    animation-delay: 0.25s;
}

.sources-expandable.expanded .sources-column:nth-child(5) {
    animation-delay: 0.3s;
}

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

.sources-column h4 {
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.2;
    min-height: 2.4em;
    display: flex;
    align-items: center;
}

.sources-category-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
}

.sources-category-grid .source-item {
    transition: all 0.2s ease;
}

.features {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-alt);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature-description {
    color: var(--color-text-light);
    line-height: 1.7;
    font-size: 1rem;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .cta-box {
        padding: var(--spacing-lg);
    }

    .url-container {
        flex-direction: column;
    }

    .copy-btn {
        width: 100%;
    }

    .tab-buttons {
        gap: 0;
    }

    .tab-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8125rem;
    }

    .config-snippet code {
        font-size: 0.75rem;
    }

    .config-location {
        font-size: 0.8125rem;
    }

    .config-location code {
        font-size: 0.75rem;
    }

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

    .sources-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .sources-columns {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .sources-category-grid {
        grid-template-columns: 1fr;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-2xl) 0 var(--spacing-xl);
    }

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

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .server-url {
        font-size: 0.75rem;
    }

    .config-snippet code {
        font-size: 0.7rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .sources-grid {
        grid-template-columns: 1fr;
    }

    .sources-columns {
        grid-template-columns: 1fr;
    }

    .sources-expandable.expanded .sources-full-list {
        padding: var(--spacing-md);
    }
}

.site-footer {
    padding: var(--spacing-xl) 0;
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.875rem;
    background: var(--color-bg-alt);
}

.site-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.site-footer a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}