:root {
    --bg: #06111f;
    --bg-soft: rgba(11, 30, 53, 0.88);
    --panel: rgba(13, 26, 44, 0.88);
    --line: rgba(95, 178, 255, 0.16);
    --text: #e8f3ff;
    --muted: #8ca6c5;
    --primary: #43c7ff;
    --accent: #7c5cff;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: radial-gradient(circle at top left, rgba(67, 199, 255, 0.12), transparent 28%), radial-gradient(circle at top right, rgba(124, 92, 255, 0.12), transparent 22%), linear-gradient(180deg, #05101b 0%, #07111e 100%);
    color: var(--text);
    min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
main { position: relative; z-index: 1; }
.page-shell {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(rgba(67, 199, 255, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(67, 199, 255, 0.06) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(180deg, rgba(0,0,0,.8), transparent 85%);
}
.site-header, .container, .site-footer { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; }
.brand-mark {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 0 22px rgba(67, 199, 255, 0.8);
}
.site-nav { display: flex; gap: 18px; color: var(--muted); }
.site-nav a:hover, .text-link:hover { color: var(--primary); }
.nav-toggle { display: none; }
.hero, .page-head, .article-head { padding-top: 56px; }
.hero { display: grid; grid-template-columns: 1.3fr .9fr; gap: 24px; align-items: stretch; }
.hero h1, .page-head h1, .article-head h1 {
    font-size: clamp(2.2rem, 5vw, 4.2rem);
    margin: 12px 0 16px;
    line-height: 1.08;
}
.eyebrow { text-transform: uppercase; letter-spacing: .18em; color: var(--primary); font-size: .82rem; }
.hero-copy, .page-head p, .article-summary, .card p, .site-footer p { color: var(--muted); line-height: 1.8; }
.hero-panel, .card, .article-body, .search-bar {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: var(--shadow);
}
.hero-panel { padding: 24px; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.metric-grid article, .tool-meta { display: flex; flex-direction: column; gap: 6px; }
.metric-grid strong { font-size: 2rem; color: var(--primary); }
.hero-note { margin-top: 18px; }
.hero-actions, .section-heading, .tool-meta.stack { display: flex; gap: 12px; }
.section-heading { justify-content: space-between; align-items: center; margin: 36px 0 18px; }
.section-grid h2 { margin: 0; }
.button, .text-link { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; border-radius: 999px; }
.button { padding: 0 18px; border: 1px solid var(--line); color: var(--text); }
.button.primary { background: linear-gradient(135deg, var(--primary), #2d8bff); color: #03111f; font-weight: 700; }
.card-grid { display: grid; gap: 18px; }
.card-grid.three-up { grid-template-columns: repeat(3, 1fr); }
.card-grid.two-up { grid-template-columns: repeat(2, 1fr); }
.card { padding: 24px; min-height: 220px; }
.card h2, .card h3 { margin: 10px 0 12px; }
.meta { color: var(--primary); font-size: .86rem; }
.search-bar { padding: 10px; display: flex; gap: 10px; margin-top: 18px; }
.search-bar input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: 0;
    color: var(--text);
    font-size: 1rem;
    padding: 0 10px;
    outline: none;
}
.article-wrap { margin-top: 28px; }
.article-body { padding: 32px; line-height: 1.9; }
.markdown-body h2, .markdown-body h3 { margin-top: 28px; }
.markdown-body pre {
    overflow: auto;
    background: rgba(0,0,0,0.28);
    padding: 18px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.06);
}
.markdown-body code { font-family: Consolas, monospace; }
.markdown-body table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.markdown-body th, .markdown-body td { border: 1px solid rgba(255,255,255,0.08); padding: 10px 12px; text-align: left; }
.bottom-space { padding-bottom: 72px; }
.site-footer { padding: 22px 0 42px; color: var(--muted); }
@media (max-width: 900px) {
    .hero, .card-grid.three-up, .card-grid.two-up { grid-template-columns: 1fr; }
    .site-nav {
        display: none;
        position: absolute;
        top: 72px;
        right: 16px;
        flex-direction: column;
        padding: 16px;
        border-radius: 18px;
        background: rgba(6, 17, 31, 0.95);
        border: 1px solid var(--line);
    }
    .site-nav.open { display: flex; }
    .nav-toggle {
        display: inline-flex;
        border: 1px solid var(--line);
        background: transparent;
        color: var(--text);
        border-radius: 12px;
        padding: 10px 14px;
    }
}