styles.css

/* ==========================================================================
   LiteGraph marketing site
   Dark-first visual system inspired by x.ai / spacex.com:
   near-black canvas, monochrome type, hairline borders, restrained green accent.
   ========================================================================== */

/* Dark is the default theme (:root). Light is an explicit opt-in override. */
:root {
    --bg-primary: #060708;
    --bg-secondary: #0c0e10;
    --bg-tertiary: #16191c;
    --surface: rgba(255, 255, 255, 0.02);
    --surface-hover: rgba(255, 255, 255, 0.04);
    --text-primary: #f4f6f7;
    --text-secondary: #a4abb0;
    --text-tertiary: #6a7278;
    --border-color: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.16);
    --accent-primary: #4ade80;
    --accent-secondary: #86efac;
    --accent-tertiary: #22c55e;
    --accent-glow: rgba(74, 222, 128, 0.15);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px -8px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 24px 60px -20px rgba(0, 0, 0, 0.75);
    --code-bg: #0a0c0d;
    --code-text: #d7dee2;
    --nav-bg: rgba(6, 7, 8, 0.72);
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8f7;
    --bg-tertiary: #eef1f0;
    --surface: rgba(0, 0, 0, 0.015);
    --surface-hover: rgba(0, 0, 0, 0.035);
    --text-primary: #0d1613;
    --text-secondary: #47514d;
    --text-tertiary: #78827d;
    --border-color: rgba(0, 0, 0, 0.1);
    --border-strong: rgba(0, 0, 0, 0.18);
    --accent-primary: #16a34a;
    --accent-secondary: #15803d;
    --accent-tertiary: #22c55e;
    --accent-glow: rgba(22, 163, 74, 0.12);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px -10px rgba(0, 0, 0, 0.18);
    --shadow-lg: 0 24px 60px -22px rgba(0, 0, 0, 0.22);
    --code-bg: #0c0e10;
    --code-text: #d7dee2;
    --nav-bg: rgba(255, 255, 255, 0.82);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 400;
    letter-spacing: -0.011em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Shared monospace/eyebrow label treatment (x.ai-style small caps labels) */
.eyebrow,
.query-kicker,
.sdk-badge,
.code-tab {
    font-family: 'Inter', system-ui, sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.16em;
}

/* --------------------------------------------------------------------------
   Theme toggle
   -------------------------------------------------------------------------- */
.theme-toggle {
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 38px;
    height: 38px;
    width: 38px;
    padding: 0;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    background-color: var(--surface-hover);
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }
[data-theme="light"] .theme-toggle .sun-icon { display: block; }
[data-theme="light"] .theme-toggle .moon-icon { display: none; }

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background-color: var(--nav-bg);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.navbar.scrolled {
    border-bottom-color: var(--border-color);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.9rem 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo {
    width: 32px;
    height: 32px;
}

.brand-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

.nav-links > a:not(.github-link):not(.api-docs-link) {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
    padding: 8px 12px;
    border-radius: 7px;
    transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-links > a:not(.github-link):not(.api-docs-link):hover {
    color: var(--text-primary);
    background-color: var(--surface-hover);
}

.github-link,
.api-docs-link {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 14px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.github-link {
    padding: 8px;
    color: var(--text-primary);
}

.github-link:hover,
.api-docs-link:hover {
    background-color: var(--surface-hover);
    border-color: var(--border-strong);
    color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    padding: 190px 24px 120px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-color: var(--bg-primary);
}

/* Semi-transparent graph-network background image, faded into the canvas */
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/hero-network.svg");
    background-size: cover;
    background-position: center 30%;
    background-repeat: no-repeat;
    opacity: 0.72;
    z-index: 0;
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 30%, transparent 0%, var(--bg-primary) 78%),
                linear-gradient(to bottom, transparent 40%, var(--bg-primary) 100%);
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
}

.eyebrow {
    color: var(--accent-primary);
    font-size: 0.78rem;
    font-weight: 600;
    margin: 0 0 1.5rem;
    display: inline-block;
    padding: 5px 14px;
    border: 1px solid var(--border-color);
    border-radius: 100px;
    background-color: var(--surface);
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 600;
    line-height: 1.02;
    letter-spacing: -0.035em;
    margin: 0 auto 1.75rem;
    max-width: 15ch;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    margin: 0 auto 2.25rem;
    line-height: 1.6;
    font-weight: 400;
    max-width: 720px;
}

.hero-badges {
    display: flex;
    gap: 0.6rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.badge {
    padding: 6px 14px;
    background-color: var(--surface);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.hero-actions {
    display: flex;
    gap: 0.85rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    padding: 13px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
}

/* x.ai-style primary: solid light chip on a dark canvas */
.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 30px -8px var(--accent-glow);
    opacity: 0.92;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.btn-secondary:hover {
    background-color: var(--surface-hover);
    border-color: var(--text-tertiary);
    transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   Section scaffolding
   -------------------------------------------------------------------------- */
.section-title {
    font-size: clamp(1.9rem, 4vw, 2.9rem);
    font-weight: 600;
    text-align: center;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1.1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: clamp(1rem, 1.6vw, 1.18rem);
    color: var(--text-secondary);
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3.5rem;
    line-height: 1.65;
}

/* --------------------------------------------------------------------------
   Features
   -------------------------------------------------------------------------- */
.features {
    padding: 110px 24px;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Faint accent washes in the corners */
.features::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 55% 45% at 88% 0%, var(--accent-glow), transparent 70%),
        radial-gradient(ellipse 45% 40% at 5% 100%, var(--accent-glow), transparent 70%);
    opacity: 0.45;
    z-index: 0;
    pointer-events: none;
}

.features > .container {
    position: relative;
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1px;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background-color: var(--bg-primary);
    padding: 2.25rem;
    transition: background-color 0.25s ease;
}

.feature-card:hover {
    background-color: var(--surface-hover);
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.65;
    font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   Operations / benefits
   -------------------------------------------------------------------------- */
.benefits {
    padding: 110px 24px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Reuse the technical grid, faint and offset high */
.benefits::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/grid.svg");
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    opacity: 0.28;
    z-index: 0;
    pointer-events: none;
}

.benefits > .container {
    position: relative;
    z-index: 1;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

@media (min-width: 1200px) {
    .benefits-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.benefit-card {
    padding: 1.75rem;
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: border-color 0.25s ease, transform 0.25s ease;
}

.benefit-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
}

.benefit-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.6rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.benefit-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.92rem;
}

/* --------------------------------------------------------------------------
   Query language
   -------------------------------------------------------------------------- */
.query-language {
    padding: 110px 24px;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Faint node-mesh backdrop, kept well below the code panel */
.query-language::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/mesh.svg");
    background-size: cover;
    background-position: center bottom;
    background-repeat: no-repeat;
    opacity: 0.3;
    z-index: 0;
    pointer-events: none;
}

.query-language > .container {
    position: relative;
    z-index: 1;
}

.query-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: 1.5rem;
    align-items: stretch;
    max-width: 1080px;
    margin: 0 auto;
}

.query-points {
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.query-kicker {
    color: var(--accent-primary);
    font-size: 0.72rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.query-points h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: 0.7rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.query-summary {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.query-surface-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.query-surface-list li {
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: grid;
    gap: 0.5rem;
    grid-template-columns: 8rem minmax(0, 1fr);
    padding: 0.8rem 0;
    overflow-wrap: anywhere;
    font-size: 0.9rem;
}

.query-surface-list li:last-child {
    border-bottom: 1px solid var(--border-color);
}

.query-surface-label {
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.query-guide-link {
    align-self: flex-start;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    transition: gap 0.2s ease;
}

.query-guide-link:hover {
    text-decoration: underline;
}

.query-points code,
.benefit-card code,
.section-subtitle code {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--accent-secondary);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.88em;
    padding: 0.1rem 0.4rem;
}

/* --------------------------------------------------------------------------
   Chat with your graph
   -------------------------------------------------------------------------- */
.chat-graph {
    padding: 110px 24px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Semi-transparent token-stream backdrop */
.chat-graph::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/stream.svg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.5;
    z-index: 0;
    pointer-events: none;
}

.chat-graph > .container {
    position: relative;
    z-index: 1;
}

.chat-panel {
    margin-bottom: 2.5rem;
}

.chat-card-grid {
    max-width: 1080px;
    margin: 0 auto;
    /* Five cards: a row of three, then a row of two. Each card spans two
       tracks of a six-track grid; the last two are nudged to center. */
    grid-template-columns: repeat(6, 1fr);
}

.chat-card-grid > .benefit-card {
    grid-column: span 2;
}

.chat-card-grid > .benefit-card:nth-child(4) {
    grid-column: 2 / span 2;
}

@media (max-width: 900px) {
    .chat-card-grid {
        grid-template-columns: 1fr;
    }

    .chat-card-grid > .benefit-card,
    .chat-card-grid > .benefit-card:nth-child(4) {
        grid-column: auto;
    }
}

/* --------------------------------------------------------------------------
   Agentic applications
   -------------------------------------------------------------------------- */
.agentic {
    padding: 110px 24px;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Semi-transparent memory-lattice backdrop */
.agentic::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/lattice.svg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.45;
    z-index: 0;
    pointer-events: none;
}

.agentic > .container {
    position: relative;
    z-index: 1;
}

.agentic-panel {
    margin-bottom: 2.5rem;
}

/* --------------------------------------------------------------------------
   Use cases
   -------------------------------------------------------------------------- */
.use-cases {
    padding: 110px 24px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Semi-transparent constellation backdrop */
.use-cases::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/constellation.svg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.6;
    z-index: 0;
    pointer-events: none;
}

.use-cases > .container {
    position: relative;
    z-index: 1;
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

@media (min-width: 1200px) {
    .use-case-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.use-case-card {
    background-color: var(--bg-tertiary);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: border-color 0.25s ease, transform 0.25s ease;
}

.use-case-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
}

.use-case-icon {
    display: inline-flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--accent-primary);
    background-color: var(--accent-glow);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 1.4rem;
}

.use-case-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.7rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.use-case-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.92rem;
}

/* --------------------------------------------------------------------------
   Getting started
   -------------------------------------------------------------------------- */
.getting-started {
    position: relative;
    padding: 110px 24px;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    overflow: hidden;
}

/* Faint constellation backdrop behind the code examples */
.getting-started::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/constellation.svg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.3;
    z-index: 0;
    pointer-events: none;
}

.getting-started > .container {
    position: relative;
    z-index: 1;
}

.code-examples {
    max-width: 960px;
    margin: 0 auto;
}

.code-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.code-tab {
    padding: 8px 16px;
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.68rem;
    color: var(--text-tertiary);
    transition: all 0.2s ease;
}

.code-tab:hover {
    color: var(--text-primary);
    border-color: var(--border-strong);
}

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

.code-content {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-block {
    display: none;
    padding: 1.75rem;
    overflow-x: auto;
}

.code-block.active {
    display: block;
}

.code-block code {
    color: var(--code-text);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.88rem;
    line-height: 1.7;
    white-space: pre;
}

/* --------------------------------------------------------------------------
   SDKs
   -------------------------------------------------------------------------- */
.sdks {
    padding: 110px 24px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Faint accent washes behind the SDK cards */
.sdks::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 50% 45% at 10% 0%, var(--accent-glow), transparent 70%),
        radial-gradient(ellipse 50% 40% at 95% 90%, var(--accent-glow), transparent 70%);
    opacity: 0.4;
    z-index: 0;
    pointer-events: none;
}

.sdks > .container {
    position: relative;
    z-index: 1;
}

.sdk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

@media (min-width: 1200px) {
    .sdk-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.sdk-card {
    background-color: var(--surface);
    padding: 1.75rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: border-color 0.25s ease, transform 0.25s ease;
}

.sdk-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
}

.sdk-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.sdk-header h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.sdk-badge {
    font-size: 0.62rem;
    padding: 4px 9px;
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    color: var(--text-tertiary);
    font-weight: 600;
}

.sdk-card p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.6;
    font-size: 0.92rem;
}

.sdk-stats {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.sdk-stats img {
    height: 20px;
}

.sdk-code {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    padding: 11px 15px;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-family: 'Consolas', 'Monaco', monospace;
}

.sdk-code code {
    color: var(--code-text);
    font-size: 0.85rem;
}

.sdk-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.2s ease;
}

.sdk-link:hover {
    gap: 9px;
}

.sdk-links {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-top: 1rem;
}

.sdk-links a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    transition: transform 0.2s ease;
}

.sdk-links a:hover {
    transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   Docker deployment
   -------------------------------------------------------------------------- */
.docker-deployment {
    padding: 110px 24px;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Semi-transparent technical grid backdrop */
.docker-deployment::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/grid.svg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.55;
    z-index: 0;
    pointer-events: none;
}

.docker-deployment > .container {
    position: relative;
    z-index: 1;
}

.docker-content {
    max-width: 820px;
    margin: 0 auto;
}

.docker-example {
    margin-bottom: 2.5rem;
}

.docker-example h3,
.docker-features h3 {
    font-size: 1.25rem;
    margin-bottom: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.docker-code {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    padding: 1.4rem;
    border-radius: 12px;
    overflow-x: auto;
    box-shadow: var(--shadow-md);
}

.docker-code code {
    color: var(--code-text);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.88rem;
    line-height: 1.65;
    white-space: pre;
}

.docker-features ul {
    list-style: none;
    margin-bottom: 2rem;
}

.docker-features ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.7rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.docker-features ul li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

.docker-links {
    display: flex;
    gap: 0.85rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* --------------------------------------------------------------------------
   Dashboard / web UI
   -------------------------------------------------------------------------- */
.web-ui {
    padding: 110px 24px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Semi-transparent node-mesh backdrop */
.web-ui::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("assets/mesh.svg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.55;
    z-index: 0;
    pointer-events: none;
}

.web-ui > .container {
    position: relative;
    z-index: 1;
}

.dashboard-gallery {
    display: grid;
    gap: 1.25rem;
    margin: 0 0 3rem;
}

.dashboard-shot {
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    box-shadow: var(--shadow-md);
    margin: 0;
    overflow: hidden;
    transition: border-color 0.25s ease;
}

.dashboard-shot:hover {
    border-color: var(--border-strong);
}

.dashboard-shot img {
    aspect-ratio: 16 / 9;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    display: block;
    height: auto;
    object-fit: contain;
    width: 100%;
}

.dashboard-shot-featured img {
    aspect-ratio: 1909 / 1018;
}

.dashboard-shot-wide {
    grid-column: 1 / -1;
}

.dashboard-shot-wide img {
    aspect-ratio: 1905 / 961;
}

.dashboard-shot figcaption {
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 1rem 1.25rem 1.2rem;
    font-size: 0.9rem;
}

.dashboard-shot figcaption span {
    color: var(--text-primary);
    display: block;
    font-weight: 600;
    margin-bottom: 0.3rem;
    letter-spacing: -0.01em;
}

.dashboard-shot-grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.web-ui-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.web-ui-features h3,
.web-ui-deployment h3 {
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.web-ui-features ul {
    list-style: none;
    padding: 0;
}

.web-ui-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.web-ui-features li:last-child {
    border-bottom: none;
}

.web-ui-features strong {
    color: var(--text-primary);
    font-weight: 600;
}

.web-ui-links {
    display: flex;
    gap: 0.85rem;
    margin-top: 1.5rem;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 70px 24px 40px;
    position: relative;
    overflow: hidden;
}

/* Faint upward accent glow closing the page */
.footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 70% 55% at 50% 115%, var(--accent-glow), transparent 72%);
    opacity: 0.5;
    z-index: 0;
    pointer-events: none;
}

.footer > .container {
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto 3rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
}

.footer-section h4 {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 1.1rem;
    color: var(--text-tertiary);
    font-weight: 600;
}

.footer-logo {
    width: 40px;
    height: 40px;
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
    font-size: 0.92rem;
}

.footer-license {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.65rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-weight: 500;
    font-size: 0.92rem;
}

.footer-section ul li a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
    .web-ui-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        gap: 0.25rem;
    }

    .nav-links > a:not(.github-link):not(.api-docs-link) {
        display: none;
    }

    .api-docs-link span,
    .api-docs-link {
        gap: 0;
    }

    .features-grid,
    .benefits-grid,
    .query-panel,
    .use-case-grid,
    .sdk-grid {
        grid-template-columns: 1fr;
    }

    .query-surface-list li {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }

    .dashboard-shot-grid {
        grid-template-columns: 1fr;
    }

    .web-ui-links {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero {
        padding: 150px 24px 90px;
    }
}

@media (max-width: 560px) {
    .nav-container {
        padding: 0.75rem 16px;
    }

    .hero-actions .btn {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}