/* attenu.io v1 — tokens per Brand/00 (spec §3.2). Zero JS; one stylesheet; strict CSP-safe. */
@font-face { font-family: Manrope; font-weight: 700; font-display: swap;
  src: url("/fonts/manrope-700.woff2") format("woff2"); }
@font-face { font-family: Inter; font-weight: 400; font-display: swap;
  src: url("/fonts/inter-400.woff2") format("woff2"); }
@font-face { font-family: Inter; font-weight: 600; font-display: swap;
  src: url("/fonts/inter-600.woff2") format("woff2"); }

:root {
  --ink: #0B1230; --ink2: #141B3D; --indigo: #2F3BB3; --indigo2: #8B94F0; --indigo3: #D9DCF9;
  --paper: #F8FAFC; --text: #0F172A; --muted: #475569; --muted-dark: #B6BDE0; --border: #E2E8F0;
}
* { box-sizing: border-box; }
html { color-scheme: light; }
body { margin: 0; background: var(--paper); color: var(--text);
  font: 400 16px/1.6 Inter, system-ui, -apple-system, sans-serif; }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 24px; }
h1, h2, .wordmark, .brandline { font-family: Manrope, Inter, system-ui, sans-serif; font-weight: 700;
  letter-spacing: -0.02em; }
a { color: var(--indigo); }

/* hero (ink) */
.hero { background: var(--ink); color: #fff; padding: 56px 0 64px; }
.brand { display: flex; align-items: baseline; gap: 10px; margin-bottom: 44px; }
.brand .mark { width: 30px; height: 24px; }
.wordmark { font-size: 26px; color: #fff; letter-spacing: -0.025em; }
.hero h1 { font-size: clamp(34px, 6vw, 52px); line-height: 1.12; margin: 0 0 16px; }
.hero .sub { font-size: 18px; line-height: 1.55; color: var(--muted-dark); max-width: 620px; margin: 0 0 28px; }
.cta-row { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; margin: 0 0 10px; }
.cta { display: inline-block; background: var(--indigo2); color: var(--ink); font-weight: 600;
  font-size: 16px; padding: 13px 20px; border-radius: 10px; text-decoration: none; }
.cta:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.cta-secondary { color: var(--indigo2); font-weight: 600; text-decoration: none; }
.cta-secondary:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.cta-hint { color: #9AA3C7; font-size: 13.5px; margin: 0 0 26px; }
.proofline { color: var(--muted-dark); font-size: 15px; border-top: 1px solid var(--ink2);
  padding-top: 18px; max-width: 620px; }

/* body sections (paper) */
main .wrap { padding-top: 56px; padding-bottom: 8px; }
h2 { font-size: 26px; margin: 0 0 20px; }
.cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cols h3 { font-size: 17px; margin: 0 0 8px; font-weight: 600; }
.cols p { margin: 0; color: var(--muted); font-size: 15px; }
.loop { margin: 26px 0 6px; font-size: 16px; }
.frameworks { color: var(--muted); font-size: 14px; max-width: 720px; }
.proof { list-style: none; margin: 0; padding: 0; }
.proof li { padding: 14px 0 14px 30px; border-bottom: 1px solid var(--border); position: relative;
  color: var(--text); font-size: 15.5px; }
.proof li::before { content: ""; position: absolute; left: 4px; top: 21px; width: 9px; height: 9px;
  border-radius: 50%; background: var(--indigo); }
.cta-ink { background: var(--indigo); color: #fff; }
.cta-ink:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* footer */
footer { margin-top: 56px; background: #fff; border-top: 1px solid var(--border); }
footer .wrap { padding: 30px 24px 38px; color: var(--muted); font-size: 13.5px; }
footer p { margin: 0 0 8px; max-width: 720px; }
.brandline { color: var(--ink); font-size: 15px; margin-top: 14px; }

@media (max-width: 720px) {
  .cols { grid-template-columns: 1fr; }
  .hero { padding: 40px 0 48px; }
  .brand { margin-bottom: 32px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}