:root {
  --bg: #fbfaf7;
  --band: #eef3ef;
  --card: #ffffff;
  --ink: #1b2420;
  --muted: #55625b;
  --accent: #1f6b4a;
  --accent-ink: #ffffff;
  --line: #dde3de;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131815;
    --band: #19211c;
    --card: #1c241f;
    --ink: #eaf0ec;
    --muted: #9fb0a7;
    --accent: #5cc491;
    --accent-ink: #0d1a13;
    --line: #2b3830;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 720px; }
.section { padding-top: 56px; padding-bottom: 56px; }

.site-header { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 5; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; }
.mark { background: var(--accent); color: var(--accent-ink); border-radius: 6px; padding: 2px 7px; font-size: 14px; letter-spacing: .04em; }
nav a { margin-left: 18px; color: var(--muted); text-decoration: none; font-weight: 500; }
nav a:hover { color: var(--accent); }

.hero { padding: 80px 0 64px; }
.eyebrow { color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: 14px; margin: 0 0 12px; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.15; margin: 0 0 20px; max-width: 18em; }
h2 { font-size: 1.8rem; margin: 0 0 24px; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 38em; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); padding: 12px 22px; border-radius: 8px; text-decoration: none; font-weight: 600; }
.btn:hover { opacity: .9; }

.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; display: flex; flex-direction: column; }
.card h3 { margin: 0; font-size: 1.4rem; }
.tag { margin: 4px 0 12px; color: var(--accent); font-weight: 600; }
.card p { margin: 0 0 12px; }
.link { margin-top: auto; font-weight: 600; text-decoration: none; }
.link:hover { text-decoration: underline; }
code { background: var(--band); padding: 1px 6px; border-radius: 4px; font-size: .9em; }

.band { background: var(--band); }
.site-footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 15px; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

/* Contact form */
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; margin-top: 20px; }
.contact-form .row { display: flex; flex-direction: column; gap: 6px; }
.contact-form .row.wide { grid-column: 1 / -1; }
.contact-form label { font-weight: 600; font-size: .92rem; }
.contact-form input, .contact-form textarea { font: inherit; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.contact-form .hp { position: absolute; left: -9999px; }
.contact-form button { border: 0; font: inherit; font-weight: 600; cursor: pointer; justify-self: start; }
.contact-form button[disabled] { opacity: .6; cursor: wait; }
.contact-status { margin-top: 16px; padding: 12px 16px; border-radius: 8px; font-weight: 600; border: 1px solid var(--line); background: var(--card); }
.contact-status.ok { color: var(--accent); border-color: var(--accent); }
.contact-status.err { color: #b45309; border-color: #b45309; }
@media (max-width: 600px) { .contact-form { grid-template-columns: 1fr; } }