:root {
  --brand: #137A3E; --brand-2: #2FBE68; --ink: #0F1113; --muted: #5F676E; --surface: #EFF1F3; --bg: #FFFFFF; --card: #FFFFFF; --line: #DCE0E4;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #F2F4F6; --muted: #A3ABB3; --surface: #15181B; --bg: #0F1113; --card: #181C20; --line: #2A3036; --brand-2: #3FD57A; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.55; }
a { color: var(--brand); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); grid-column: 1 / -1; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 60ch; }
.muted { color: var(--muted); }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; color: var(--brand); font-weight: 700; }
em { font-style: normal; color: var(--brand); }

.top { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem clamp(16px, 5vw, 64px); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.logo { text-decoration: none; color: var(--ink); font-weight: 600; font-size: 1.1rem; }
.logo .mark { color: var(--brand); }
.top nav { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; }
.top nav a { text-decoration: none; color: var(--ink); font-weight: 500; }

main > section { padding: clamp(2.5rem, 7vw, 6rem) clamp(16px, 5vw, 64px); max-width: 1100px; margin: 0 auto; }
.hero { padding-top: clamp(3rem, 10vw, 7rem); }
.cta { display: flex; gap: .75rem; flex-wrap: wrap; }

.btn { display: inline-block; background: var(--brand); color: #fff; padding: .8rem 1.3rem; border-radius: 8px; text-decoration: none; font-weight: 600; border: 2px solid var(--brand); cursor: pointer; font-size: 1rem; }
.btn:hover { background: var(--brand-2); border-color: var(--brand-2); }
.btn.ghost { background: transparent; color: var(--brand); }
.btn.small { padding: .5rem .9rem; font-size: .9rem; }

.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1.25rem; }
.card.feat { border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 20%, transparent); }
.process ol { padding-left: 1.4rem; display: grid; gap: .6rem; max-width: 70ch; }
.process li::marker { color: var(--brand); font-weight: 700; }
.principles ul { padding-left: 1.2rem; max-width: 70ch; display: grid; gap: .5rem; }

form { display: grid; gap: .9rem; max-width: 640px; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: .9rem; }
label { display: grid; gap: .3rem; font-weight: 500; font-size: .95rem; }
input, textarea { font: inherit; padding: .7rem .8rem; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--ink); }
input:focus, textarea:focus { outline: 2px solid var(--brand-2); outline-offset: 1px; }
.hp { position: absolute; left: -9999px; }
.status { min-height: 1.5em; color: var(--muted); }
.foot { border-top: 1px solid var(--line); padding: 2rem clamp(16px, 5vw, 64px); color: var(--muted); font-size: .9rem; }