:root {
    --color-bg: #0d1117;
    --color-bg-secondary: #161b22;
    --color-bg-tertiary: #21262d;
    --color-border: #30363d;
    --color-text: #c9d1d9;
    --color-text-secondary: #8b949e;
    --color-text-heading: #f0f6fc;
    --color-accent-blue: #3776ab;
    --color-accent-yellow: #ffd43b;
    --color-accent-blue-light: #4da3d4;
    --color-button-primary-bg: #3776ab;
    --color-button-primary-hover: #4da3d4;
    --color-button-secondary-bg: #21262d;
    --color-button-secondary-hover: #30363d;
    --color-code-bg: #0d1117;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    --max-width: 1160px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-accent-blue-light);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent-yellow);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-text-heading);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo img {
    border-radius: 8px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--color-accent-yellow);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Hero */
.hero {
    padding: 80px 0 100px;
    text-align: center;
    background: radial-gradient(ellipse at top, rgba(55, 118, 171, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at bottom, rgba(255, 212, 59, 0.06) 0%, transparent 50%);
}

.hero-logo {
    max-width: 520px;
    width: 100%;
    height: auto;
    margin-bottom: 32px;
    border-radius: var(--radius-lg);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    color: var(--color-text-heading);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    max-width: 720px;
    margin: 0 auto 36px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-button-primary-bg);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--color-button-primary-hover);
    color: #fff;
}

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

.btn-secondary:hover {
    background-color: var(--color-button-secondary-hover);
    color: var(--color-text-heading);
}

.hero-terminal {
    max-width: 640px;
    margin: 0 auto;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    text-align: left;
    box-shadow: var(--shadow);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background-color: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red { background-color: #ff5f56; }
.terminal-dot.yellow { background-color: #ffbd2e; }
.terminal-dot.green { background-color: #27c93f; }

.terminal-title {
    margin-left: 8px;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    font-family: "JetBrains Mono", monospace;
}

.terminal-body {
    padding: 20px 24px;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.95rem;
}

.terminal-body code {
    display: block;
    color: var(--color-text);
}

.terminal-body .prompt {
    color: var(--color-accent-yellow);
    margin-right: 10px;
}

.terminal-body .output {
    color: var(--color-text-secondary);
    margin-top: 8px;
}

/* Sections */
section {
    padding: 96px 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-heading);
    text-align: center;
    margin-bottom: 56px;
    letter-spacing: -0.01em;
}

/* Features */
.features {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-blue);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.15rem;
    color: var(--color-text-heading);
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Examples */
.example-tabs {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 20px;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    border-color: var(--color-accent-blue);
}

.tab-btn.active {
    background-color: var(--color-accent-blue);
    border-color: var(--color-accent-blue);
    color: #fff;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Code blocks */
.code-block {
    background-color: var(--color-code-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.code-block.minimal {
    box-shadow: none;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 18px;
    background-color: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    font-family: "JetBrains Mono", monospace;
}

.code-block pre {
    padding: 24px;
    overflow-x: auto;
}

.code-block code {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--color-text);
}

/* Install */
.install {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.install-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 56px;
}

.install-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
}

.install-card h3 {
    color: var(--color-text-heading);
    margin-bottom: 16px;
    font-size: 1.15rem;
}

.install-card p {
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

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

.install-actions h3 {
    color: var(--color-text-heading);
    margin-bottom: 20px;
    font-size: 1.25rem;
}

.install-actions .code-block {
    max-width: 640px;
    margin: 0 auto;
    text-align: left;
}

/* Docs */
.docs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.doc-card {
    display: block;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 26px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.doc-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-accent-blue);
}

.doc-card h3 {
    color: var(--color-text-heading);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.doc-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text-heading);
    font-weight: 600;
}

.footer-text {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--color-accent-yellow);
}

/* Responsive */
@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .install-grid,
    .docs-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-bg-secondary);
        border-bottom: 1px solid var(--color-border);
        padding: 16px 24px;
        gap: 16px;
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding: 60px 0 80px;
    }

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

    section {
        padding: 72px 0;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}