/* nanolm — deep research lab notebook */

:root {
    --bg: #0b0a1e;
    --bg-2: #12102b;
    --ink: #ece8dc;
    --ink-dim: #b8b3a3;
    --ink-soft: #8a8478;
    --violet: #a78bfa;
    --violet-2: #c4b5fd;
    --pink: #f0abfc;
    --accent2: #67e8f9;
    --line: rgba(236, 232, 220, 0.09);
    --line-strong: rgba(167, 139, 250, 0.28);
    --card: rgba(18, 16, 43, 0.65);

    --serif: 'Fraunces', ui-serif, Georgia, serif;
    --sans: 'General Sans', 'Inter', system-ui, -apple-system, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html, body { background: var(--bg); color: var(--ink); }

body {
    font-family: var(--sans);
    font-weight: 400;
    line-height: 1.58;
    font-size: 16.5px;
    letter-spacing: -0.005em;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;

    background-color: var(--bg);
    background-image:
        radial-gradient(ellipse 900px 600px at 15% -5%, rgba(167, 139, 250, 0.15), transparent 60%),
        radial-gradient(ellipse 700px 500px at 95% 10%, rgba(240, 171, 252, 0.08), transparent 60%),
        radial-gradient(ellipse 1000px 700px at 50% 110%, rgba(103, 232, 249, 0.05), transparent 60%),
        radial-gradient(circle at 1px 1px, rgba(236, 232, 220, 0.045) 1px, transparent 0);
    background-size: auto, auto, auto, 28px 28px;
    background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }

code, pre { font-family: var(--mono); }

.page {
    max-width: 1080px;
    margin: 0 auto;
    padding: 28px 24px 80px;
}

/* -------- nav -------- */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 2px 40px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink);
    letter-spacing: 0.01em;
}
.nav-right { display: flex; align-items: center; gap: 20px; }
.nav-link {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink-dim);
    transition: color 0.2s;
}
.nav-link:hover { color: var(--violet-2); }
.nav-cta {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--bg);
    background: linear-gradient(135deg, var(--violet-2), var(--pink));
    padding: 8px 16px;
    border-radius: 999px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(167, 139, 250, 0.35); }

/* -------- hero -------- */
.hero { padding: 30px 0 40px; }
.hero-inner { max-width: 900px; }

.hero-kicker {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--violet);
    letter-spacing: 0.08em;
    text-transform: lowercase;
    margin-bottom: 22px;
}

.hero-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(42px, 7vw, 82px);
    line-height: 1.02;
    letter-spacing: -0.028em;
    color: var(--ink);
    margin-bottom: 28px;
}

.accent {
    background: linear-gradient(100deg, var(--violet-2) 0%, var(--violet) 40%, var(--pink) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-style: italic;
    font-weight: 500;
}

.hero-sub {
    font-size: 18px;
    line-height: 1.62;
    color: var(--ink-dim);
    max-width: 640px;
    margin-bottom: 32px;
}

.hero-cta-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 44px;
}

.btn {
    font-family: var(--mono);
    font-size: 13.5px;
    padding: 12px 22px;
    border-radius: 999px;
    transition: all 0.2s;
    border: 1px solid transparent;
}
.btn-primary {
    color: var(--bg);
    background: linear-gradient(135deg, var(--violet-2), var(--pink));
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 30px rgba(240, 171, 252, 0.25); }
.btn-ghost {
    color: var(--ink);
    border-color: var(--line-strong);
    background: rgba(167, 139, 250, 0.05);
}
.btn-ghost:hover { background: rgba(167, 139, 250, 0.12); border-color: var(--violet); }

/* -------- frosted / demo -------- */
.frosted {
    position: relative;
    background: var(--card);
    border: 1px solid var(--line-strong);
    border-radius: 14px;
    padding: 22px 24px;
    overflow-x: auto;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow:
        0 0 0 1px rgba(167, 139, 250, 0.06) inset,
        0 24px 60px -30px rgba(167, 139, 250, 0.35),
        0 1px 0 rgba(236, 232, 220, 0.04) inset;
}
.frosted::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.35), transparent 40%, rgba(240, 171, 252, 0.2));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
}

pre.demo {
    font-family: var(--mono);
    font-size: 13px;
    line-height: 1.68;
    color: var(--ink);
    white-space: pre;
    overflow-x: auto;
}

.c-cmd { color: var(--violet); }
.c-accent { color: var(--violet-2); }
.c-accent2 { color: var(--accent2); }
.c-pink { color: var(--pink); }
.c-dim { color: var(--ink-soft); }

.fade-label {
    margin-top: 14px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-soft);
    text-align: center;
}

/* stats under hero */
.stat-row {
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-n {
    font-family: var(--serif);
    font-size: 26px;
    color: var(--ink);
    letter-spacing: -0.02em;
    font-weight: 500;
}
.stat-l {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-soft);
    letter-spacing: 0.06em;
    text-transform: lowercase;
}

/* -------- section shared -------- */
.section-eyebrow {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--violet);
    letter-spacing: 0.08em;
    margin-bottom: 14px;
}
.section-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(30px, 4.5vw, 44px);
    line-height: 1.12;
    letter-spacing: -0.022em;
    color: var(--ink);
    margin-bottom: 28px;
    max-width: 720px;
}

.demo-section, .features, .essay, .install {
    padding: 70px 0 20px;
}

/* -------- features -------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 8px;
}
.feature {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 22px 22px 24px;
    transition: border-color 0.25s, transform 0.25s;
}
.feature:hover {
    border-color: var(--line-strong);
    transform: translateY(-2px);
}
.feature-icon {
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    color: var(--violet-2);
    background: rgba(167, 139, 250, 0.08);
    border: 1px solid var(--line-strong);
    border-radius: 8px;
    margin-bottom: 16px;
}
.feature-icon svg { width: 18px; height: 18px; }
.feature h3 {
    font-family: var(--serif);
    font-weight: 500;
    font-size: 18px;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
    color: var(--ink);
}
.feature p {
    font-size: 14.5px;
    line-height: 1.58;
    color: var(--ink-dim);
}
.feature code {
    background: rgba(167, 139, 250, 0.1);
    color: var(--violet-2);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 12.5px;
}

/* -------- essay -------- */
.essay { max-width: 780px; margin: 0 auto; }
.essay-rule {
    width: 48px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--violet), transparent);
}
.essay-body {
    max-width: 640px;
    margin: 0 auto;
    font-family: var(--serif);
    font-weight: 300;
    font-size: 19px;
    line-height: 1.72;
    color: var(--ink);
    letter-spacing: -0.005em;
}
.essay-body p { margin-bottom: 22px; }
.essay-body code {
    font-family: var(--mono);
    font-size: 15px;
    background: rgba(167, 139, 250, 0.1);
    color: var(--violet-2);
    padding: 1px 7px;
    border-radius: 4px;
}
.pull {
    font-style: italic;
    color: var(--violet-2);
    background: linear-gradient(100deg, var(--violet-2), var(--pink));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* -------- install -------- */
.install-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 8px;
}
.install-card {
    background: var(--card);
    border: 1px solid var(--line-strong);
    border-radius: 12px;
    padding: 22px 22px 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.install-card h3 {
    font-family: var(--serif);
    font-weight: 500;
    font-size: 17px;
    letter-spacing: -0.01em;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 10px;
}
.install-card pre {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px 14px;
    overflow-x: auto;
    font-size: 12.5px;
    line-height: 1.6;
    color: var(--violet-2);
}
.install-card .note {
    font-size: 13.5px;
    line-height: 1.55;
    color: var(--ink-dim);
}
.install-card code {
    background: rgba(167, 139, 250, 0.1);
    color: var(--violet-2);
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 12px;
}

/* -------- footer -------- */
.footer {
    margin-top: 80px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-soft);
    flex-wrap: wrap;
    gap: 16px;
}
.footer-links { display: flex; gap: 18px; }
.footer-links a { transition: color 0.2s; }
.footer-links a:hover { color: var(--violet-2); }

/* -------- responsive -------- */
@media (max-width: 860px) {
    .feature-grid, .install-grid { grid-template-columns: 1fr; }
    .stat-row { gap: 22px; }
    .demo-section, .features, .essay, .install { padding: 50px 0 10px; }
    .hero-title { font-size: clamp(36px, 9vw, 56px); }
    pre.demo { font-size: 11.5px; }
}

@media (max-width: 520px) {
    .page { padding: 20px 18px 60px; }
    .nav-right { gap: 14px; }
    .stat-n { font-size: 22px; }
    .frosted { padding: 16px 14px; }
}