/* Insihts, Corp. — quiet, editorial. Warm paper, ink, one serif accent. */
:root {
  --bg: #f7f5f0;
  --card: #fffdf9;
  --ink: #141414;
  --ink-2: #3d3b37;
  --muted: #76726a;
  --line: #e4dfd5;
  --accent: #2f4bff;
  --maxw: 1080px;
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121211; --card: #1a1a18; --ink: #f2efe8; --ink-2: #d2cec5; --muted: #9a958b; --line: #2c2a26; --accent: #8c9bff; }
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.wrap { width: min(var(--maxw), 100% - 32px); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--bg); padding: 8px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 8px; }

.nav { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; font-size: 17px; letter-spacing: -0.01em; }
.mark { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 8px; background: var(--ink); color: var(--bg); font-family: var(--serif); font-size: 21px; line-height: 1; font-style: italic; }
.nav nav { display: flex; gap: 26px; font-size: 14px; }
.nav nav a { text-decoration: none; color: var(--ink-2); }
.nav nav a:hover { color: var(--ink); }
@media (max-width: 560px) { .nav nav { gap: 16px; font-size: 13px; } }

.eyebrow { margin: 0 0 18px; font-size: 13px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
h1, h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.02em; margin: 0; }
h1 { font-size: clamp(44px, 7vw, 84px); line-height: 1.02; max-width: 16ch; }
h2 { font-size: clamp(34px, 5vw, 56px); line-height: 1.05; }
h1 em, h2 em { color: var(--muted); }
h3 { margin: 0; font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.lead { margin: 26px 0 0; font-size: clamp(17px, 1.8vw, 20px); color: var(--ink-2); max-width: 56ch; }
.lead.small { font-size: 17px; margin-top: 14px; }

.hero { padding: 104px 0 96px; }
.btn { display: inline-flex; align-items: center; gap: 8px; margin-top: 36px; height: 46px; padding: 0 20px; border-radius: 999px; background: var(--ink); color: var(--bg); text-decoration: none; font-weight: 500; font-size: 15px; transition: transform .15s ease; }
.btn:hover { transform: translateY(-1px); }

.section { padding: 88px 0; border-top: 1px solid var(--line); }
.section-head { margin-bottom: 44px; }

.products { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 760px) { .products { grid-template-columns: 1fr; } }
.product { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 30px; display: flex; flex-direction: column; }
.product-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 28px; }
.product-name { font-family: var(--serif); font-size: 32px; line-height: 1; }
.product-url { font-size: 13px; color: var(--muted); }
.product p { margin: 12px 0 0; color: var(--ink-2); }
.link { margin-top: auto; padding-top: 24px; font-weight: 500; color: var(--accent); text-decoration: none; }
.link:hover { text-decoration: underline; text-underline-offset: 3px; }

.principles { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
@media (max-width: 860px) { .principles { grid-template-columns: 1fr; } }
.principles .num { display: block; font-family: var(--serif); font-size: 28px; color: var(--muted); margin-bottom: 14px; }
.principles p { margin: 10px 0 0; color: var(--ink-2); }

.company { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 760px) { .company { grid-template-columns: 1fr; } }
.facts { margin: 0; border-top: 1px solid var(--line); }
.facts div { display: grid; grid-template-columns: 170px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
@media (max-width: 480px) { .facts div { grid-template-columns: 1fr; gap: 4px; } }
.facts dt { color: var(--muted); font-size: 14px; }
.facts dd { margin: 0; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 14px; color: var(--muted); }
.foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.foot-links { display: flex; gap: 18px; }
.foot-links a { text-decoration: none; }
.foot-links a:hover { color: var(--ink); }