:root {
    --bg: #03060f;
    --panel: rgba(6, 9, 24, 0.9);
    --panel-strong: rgba(8, 13, 32, 0.95);
    --text: #f7f4ff;
    --muted: #a9b4ff;
    --accent: #53f6d3;
    --accent-strong: #ff6f91;
    --border: rgba(121, 163, 255, 0.4);
    --shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
}

* {
    box-sizing: border-box;
}
:not(pre) > code[class*="language-"], pre[class*="language-"] {
    background: none;
}
body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Atkinson Hyperlegible', sans-serif;
    background:
        radial-gradient(circle at 12% 20%, rgba(255, 111, 145, 0.2), transparent 45%),
        radial-gradient(circle at 78% 8%, rgba(83, 246, 211, 0.22), transparent 40%),
        linear-gradient(125deg, #010308, #050b1a 45%, #02060f);
    color: var(--text);
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 35% 70%, rgba(115, 135, 255, 0.15), transparent 45%);
    pointer-events: none;
    z-index: 0;
}

.top-nav {
    position: sticky;
    top: 0;
    z-index: 5;
    background: rgba(6, 8, 22, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2.5rem;
}

.brand {
    font-family: 'Bricolage Grotesque', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    font-weight: 600;
}

.anchor-links {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.anchor-links a {
    color: var(--muted);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.78rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.repo-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--text);
    text-decoration: none;
    transition: border 0.2s ease, transform 0.2s ease;
    margin-left: 1.5rem;
}

.repo-link svg {
    width: 20px;
    height: 20px;
    fill: var(--text);
}

.repo-link:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

main {
    position: relative;
    z-index: 1;
    padding: 3rem clamp(1.5rem, 6vw, 4rem) 4rem;
    max-width: 1120px;
    margin: 0 auto;
}

header.hero {
    margin-bottom: 3rem;
}

header.hero h1 {
    font-family: 'Chivo', sans-serif;
    font-size: clamp(2.6rem, 4.6vw, 4rem);
    letter-spacing: -0.03em;
    margin: 0 0 1rem;
}

header.hero p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--muted);
    max-width: 780px;
}

.intro-note {
    margin-top: 1.2rem;
    padding: 0.85rem 1.1rem;
    border-left: 3px solid var(--accent);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    font-size: 0.98rem;
}

section {
    border: 1px solid var(--border);
    border-radius: 32px;
    padding: clamp(1.8rem, 4vw, 2.6rem);
    margin-bottom: 2.5rem;
    background: var(--panel);
    box-shadow: var(--shadow);
    scroll-margin-top: 110px;
}

section h2 {
    font-family: 'Chivo', sans-serif;
    margin-top: 0;
    font-size: 2.2rem;
}

section p {
    color: var(--muted);
    line-height: 1.8;
}

.scenario-note {
    margin: 0 0 1rem;
    padding: 0.6rem 0.9rem;
    border-radius: 12px;
    border: 1px dashed rgba(255, 255, 255, 0.15);
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
    font-size: 0.92rem;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.08);
    color: var(--accent);
    border-radius: 999px;
    padding: 0.25rem 0.85rem;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.code-inline {
    display: inline-flex;
    align-items: center;
    padding: 0 0.45rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-family: 'IBM Plex Mono', monospace;
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent);
}

.code-block {
    position: relative;
    background: rgba(7, 10, 24, 0.92);
    border-radius: 22px;
    padding: 1.3rem 1.4rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin: 1.6rem 0;
}

.copy-btn {
    position: absolute;
    top: 0.7rem;
    right: 0.8rem;
    background: rgba(255, 255, 255, 0.12);
    color: var(--text);
    border: none;
    border-radius: 999px;
    padding: 0.35rem 0.85rem;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    font-family: 'Chivo', sans-serif;
}

.copy-btn:hover {
    background: var(--accent-strong);
}

.meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.2rem;
}

.meta-card {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 18px;
    padding: 1rem;
    background: var(--panel-strong);
}

.meta-card h3 {
    margin-top: 0;
}

footer {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    margin: 3rem 0 1rem;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
    background: rgba(7, 10, 24, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 0.9rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.95rem;
}

.comparison-table th {
    font-weight: 600;
    color: var(--text);
    background: rgba(255, 255, 255, 0.07);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

@media (max-width: 768px) {
    .top-nav {
        flex-direction: column;
        gap: 0.8rem;
    }

    .anchor-links {
        justify-content: center;
    }

    section h2 {
        font-size: 1.8rem;
    }
}


.repo-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--text);
    text-decoration: none;
    transition: border 0.2s ease, transform 0.2s ease;
}

.repo-link svg {
    width: 20px;
    height: 20px;
    fill: var(--text);
}

.repo-link:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}