:root {
    color-scheme: light dark;
    --bg: #f5faf8;
    --surface: #ffffff;
    --text: #10251f;
    --muted: #4c655d;
    --accent: #0f6b5c;
    --accent-strong: #095145;
    --border: #c9ddd6;
    --focus: #ffb000;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 18px; line-height: 1.55; }
a { color: var(--accent-strong); }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.shell { width: min(1120px, calc(100% - 36px)); margin-inline: auto; }
.header { display: flex; min-height: 88px; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text); font-size: 25px; font-weight: 800; text-decoration: none; }
.brand img { width: 52px; height: 52px; }
.nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 18px; }
.nav a { min-height: 44px; display: inline-flex; align-items: center; font-weight: 700; }
.hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(280px, .7fr); gap: clamp(32px, 7vw, 80px); align-items: center; padding: clamp(64px, 10vw, 120px) 0; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
h1, h2 { line-height: 1.08; text-wrap: balance; }
h1 { margin: 0; font-size: clamp(46px, 8vw, 82px); }
h2 { margin: 0 0 18px; font-size: clamp(32px, 5vw, 48px); }
.lead { max-width: 700px; margin: 24px 0 30px; color: var(--muted); font-size: clamp(21px, 3vw, 27px); }
.button { display: inline-flex; min-height: 56px; align-items: center; justify-content: center; padding: 0 24px; border-radius: 15px; background: var(--accent); color: #fff; font-weight: 800; text-decoration: none; }
.button:hover { background: var(--accent-strong); }
.hero-mark { width: min(100%, 360px); justify-self: center; filter: drop-shadow(0 24px 36px rgb(15 107 92 / 18%)); }
.section { padding: clamp(54px, 8vw, 88px) 0; }
.section-copy { max-width: 760px; color: var(--muted); font-size: 20px; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 34px; }
.card { padding: 26px; border: 1px solid var(--border); border-radius: 22px; background: var(--surface); }
.card h3 { margin: 0 0 10px; font-size: 23px; }
.card p { margin: 0; color: var(--muted); }
.steps { display: grid; gap: 16px; max-width: 780px; margin: 30px 0 0; padding: 0; list-style: none; counter-reset: steps; }
.steps li { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 16px; align-items: start; }
.steps li::before { counter-increment: steps; content: counter(steps); display: grid; width: 48px; height: 48px; place-items: center; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 800; }
.notice { max-width: 820px; padding: 24px; border: 1px solid var(--border); border-radius: 20px; background: var(--surface); }
.footer { padding: 38px 0; border-top: 1px solid var(--border); color: var(--muted); }

@media (max-width: 760px) {
    .header { align-items: flex-start; padding: 16px 0; }
    .nav { gap: 12px; }
    .hero { grid-template-columns: 1fr; padding-top: 48px; }
    .hero-mark { width: 220px; order: -1; }
    .cards { grid-template-columns: 1fr; }
}

@media (prefers-color-scheme: dark) {
    :root { --bg: #0d1815; --surface: #15241f; --text: #f1faf7; --muted: #b5cac3; --accent: #82e0c0; --accent-strong: #a6ecd5; --border: #365249; }
    .button { background: #82e0c0; color: #10251f; }
}

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