:root {
  color-scheme: light;
  --ink: #1b2728;
  --paper: #f6f4ee;
  --white: #fffefa;
  --muted: #526160;
  --line: #c8d0c9;
  --accent: #c9ed69;
  font-family: Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.55; }
a { color: inherit; }
a:focus-visible { outline: 3px solid #436500; outline-offset: 4px; }
.shell { width: min(100% - 40px, 1160px); margin-inline: auto; }
.skip-link { position: absolute; top: 8px; left: 8px; z-index: 10; padding: 9px 14px; background: white; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.site-header { background: var(--white); border-bottom: 1px solid var(--line); }
.header-inner, .brand, .site-header nav, .footer-inner { display: flex; align-items: center; }
.header-inner { min-height: 80px; justify-content: space-between; gap: 24px; }
.brand { gap: 12px; text-decoration: none; font-weight: 700; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; background: var(--ink); color: var(--white); font-size: 18px; }
.site-header nav { flex-wrap: wrap; gap: 22px; font-size: 14px; }
.site-header nav a { text-underline-offset: 5px; }
.hero { background: var(--ink); color: var(--white); padding: clamp(72px, 10vw, 132px) 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(250px, .65fr); align-items: end; gap: clamp(32px, 7vw, 100px); }
.eyebrow { margin: 0 0 20px; font-size: 12px; font-weight: 700; letter-spacing: .17em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; }
h1 { max-width: 850px; margin-bottom: 28px; font-size: clamp(42px, 6.2vw, 78px); letter-spacing: -.055em; }
h2 { margin-bottom: 24px; font-size: clamp(34px, 4.1vw, 54px); letter-spacing: -.045em; }
h3 { font-size: 22px; letter-spacing: -.025em; }
.lead { max-width: 660px; margin-bottom: 36px; color: #dae1dd; font-size: clamp(18px, 2vw, 22px); }
.action { display: inline-flex; align-items: center; justify-content: space-between; gap: 40px; min-height: 54px; padding: 12px 22px; background: var(--accent); color: var(--ink); font-weight: 700; text-decoration: none; }
.action:hover { background: #dcf69f; }
.principle { padding: 28px; border: 1px solid #6b7973; }
.principle-number { color: var(--accent); font-size: 12px; letter-spacing: .15em; }
.principle p { margin: 40px 0; font-size: clamp(23px, 2.7vw, 30px); line-height: 1.25; }
.principle-line { display: block; width: 50px; height: 2px; margin-bottom: 18px; background: var(--accent); }
.principle small { color: #d2dbd5; }
.section { padding: clamp(76px, 9vw, 120px) 0; }
.section-head { max-width: 710px; margin-bottom: 52px; }
.section-head > p:last-child { color: var(--muted); font-size: 18px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 0; margin: 0; list-style: none; }
.steps li { min-height: 310px; padding: 30px; background: var(--white); border: 1px solid var(--line); }
.step-number { display: block; margin-bottom: 78px; color: #63766b; font-size: 13px; letter-spacing: .14em; }
.steps p { margin-bottom: 0; color: var(--muted); }
.section-contrast { background: #dfe8d7; }
.example-grid, .limits-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 8vw, 120px); }
.example-grid > div:first-child > p:last-child { max-width: 480px; font-size: 18px; }
.example-card { padding: 32px; background: var(--white); border-left: 5px solid #6f8d48; }
.example-card ul { padding-left: 20px; }
.example-card li + li { margin-top: 12px; }
.note { margin-top: 28px; margin-bottom: 0; color: var(--muted); font-size: 13px; }
.limits-grid p { max-width: 600px; font-size: 18px; }
.text-link { display: inline-block; margin-top: 18px; font-weight: 700; text-underline-offset: 5px; }
.site-footer { background: var(--ink); color: var(--white); }
.footer-inner { justify-content: space-between; gap: 20px; min-height: 96px; }

@media (max-width: 760px) {
  .header-inner { align-items: flex-start; flex-direction: column; padding-block: 16px; }
  .hero-grid, .example-grid, .limits-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .steps li { min-height: 0; }
  .step-number { margin-bottom: 38px; }
  .principle { max-width: 500px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}