:root {
    --green: #12a567;
    --green-d: #0b7e4e;
    --green-700: #0c6b43;
    --orange: #ff7a29;
    --orange-d: #ed6a16;
    --ink: #10241c;
    --muted: #5c6b64;
    --line: #e3ebe6;
    --bg: #f4faf6;
    --mint: #e7f6ee;
    --mint-2: #d6f0e2;
    --ok-bg: #e3f7ec; --ok-ink: #0b7e4e;
    --err-bg: #fdeaea; --err-ink: #c0392b;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow-sm: 0 1px 3px rgba(16,36,28,.06);
    --shadow: 0 10px 30px rgba(16,90,60,.10);
    --shadow-lg: 0 20px 50px rgba(16,90,60,.16);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { letter-spacing: -.02em; line-height: 1.12; }
.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 22px; }

/* ---------- header ---------- */
.site-header {
    position: sticky; top: 0; z-index: 20;
    background: rgba(255,255,255,.82);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { font-size: 23px; font-weight: 800; text-decoration: none; color: var(--ink); letter-spacing: -.03em; }
.brand span { color: var(--green); }
.nav { display: flex; align-items: center; gap: 8px; }
.nav-hi { color: var(--muted); font-size: 14px; font-weight: 500; margin-right: 4px; }
.inline { display: inline; margin: 0; }
.lang { margin-left: 8px; font-size: 12px; display: flex; gap: 2px; background: var(--mint); border-radius: 999px; padding: 3px; }
.lang a { color: var(--green-700); text-decoration: none; padding: 4px 9px; border-radius: 999px; font-weight: 600; }
.lang a.on { background: #fff; color: var(--green); box-shadow: var(--shadow-sm); }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; cursor: pointer;
    border: 1.5px solid transparent; padding: 11px 20px; border-radius: 999px;
    font-size: 15px; font-weight: 700; text-decoration: none; text-align: center;
    transition: transform .12s ease, box-shadow .2s ease, background .2s ease; font-family: inherit;
}
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 15px 28px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 8px 20px rgba(18,165,103,.30); }
.btn-primary:hover { background: var(--green-d); box-shadow: 0 10px 26px rgba(18,165,103,.40); }
.btn-accent { background: var(--orange); color: #fff; box-shadow: 0 8px 20px rgba(255,122,41,.30); }
.btn-accent:hover { background: var(--orange-d); box-shadow: 0 10px 26px rgba(255,122,41,.40); }
.btn-outline { background: #fff; color: var(--green-700); border-color: var(--mint-2); }
.btn-outline:hover { border-color: var(--green); background: var(--mint); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--mint); }

/* ---------- hero ---------- */
.hero {
    position: relative; overflow: hidden; text-align: center;
    margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw);
    padding: 84px 22px 64px;
    background:
        radial-gradient(60% 70% at 80% 0%, rgba(255,122,41,.10), transparent 60%),
        radial-gradient(70% 80% at 10% 10%, rgba(18,165,103,.14), transparent 55%),
        linear-gradient(180deg, var(--mint) 0%, var(--bg) 100%);
}
.hero::after {
    content: ""; position: absolute; right: -120px; top: -120px; width: 360px; height: 360px;
    background: radial-gradient(circle, rgba(18,165,103,.18), transparent 70%); border-radius: 50%;
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; padding: 0 22px; }
.badge {
    display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--green-700);
    border: 1px solid var(--mint-2); padding: 7px 15px; border-radius: 999px; font-size: 13.5px;
    font-weight: 600; box-shadow: var(--shadow-sm); margin-bottom: 24px;
}
.badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(18,165,103,.18); }
.hero h1 { font-size: clamp(34px, 6vw, 58px); font-weight: 800; margin: 0 0 18px; }
.hero h1 .accent { color: var(--orange); }
.lead { font-size: clamp(17px, 2.4vw, 20px); color: var(--muted); max-width: 620px; margin: 0 auto 32px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.chips { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-top: 40px; }
.chip {
    background: #fff; border: 1px solid var(--line); color: var(--green-700);
    padding: 8px 15px; border-radius: 999px; font-size: 13.5px; font-weight: 600; box-shadow: var(--shadow-sm);
}

/* ---------- how it works ---------- */
.how { padding: 72px 0 16px; }
.how h2 { text-align: center; font-size: clamp(26px, 4vw, 34px); font-weight: 800; margin: 0 0 8px; }
.how .sub { text-align: center; color: var(--muted); margin: 0 auto 40px; max-width: 520px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px;
    box-shadow: var(--shadow-sm); transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.card h3 { margin: 16px 0 8px; font-size: 19px; font-weight: 700; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.step {
    width: 44px; height: 44px; border-radius: 14px; color: #fff; font-weight: 800; font-size: 19px;
    display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-sm);
}
.card:nth-child(1) .step { background: linear-gradient(135deg, var(--green), var(--green-d)); }
.card:nth-child(2) .step { background: linear-gradient(135deg, var(--orange), var(--orange-d)); }
.card:nth-child(3) .step { background: linear-gradient(135deg, var(--green-700), #0a5a39); }

/* ---------- band ---------- */
.band {
    text-align: center; border-radius: var(--radius); padding: 40px 28px; margin: 56px 0 8px;
    color: #fff; font-size: 19px; font-weight: 600;
    background: linear-gradient(120deg, var(--green-d), var(--green)); box-shadow: var(--shadow);
}
.band .accent { color: #ffd9bf; }

/* ---------- forms ---------- */
.form-wrap {
    max-width: 440px; margin: 64px auto; background: #fff; border: 1px solid var(--line);
    border-radius: var(--radius); padding: 38px; box-shadow: var(--shadow);
}
.form-wrap.center { text-align: center; }
.form-wrap h1 { margin: 0 0 6px; font-size: 26px; font-weight: 800; }
.form { margin-top: 20px; }
.form label { display: block; font-weight: 600; font-size: 14px; margin: 16px 0 7px; }
.form input {
    width: 100%; padding: 13px 15px; font-size: 16px; border: 1.5px solid var(--line);
    border-radius: var(--radius-sm); background: #fbfdfc; font-family: inherit; transition: .15s;
}
.form input:focus { outline: none; border-color: var(--green); background: #fff; box-shadow: 0 0 0 4px rgba(18,165,103,.14); }
.hint { display: block; color: var(--muted); font-size: 13px; margin: 7px 0 0; }
.form .btn { margin-top: 24px; }
.muted { color: var(--muted); }
.alt { text-align: center; margin-top: 20px; font-size: 14.5px; color: var(--muted); }
.alt a { color: var(--green); font-weight: 700; text-decoration: none; }
.alt a:hover { text-decoration: underline; }
.big-emoji { font-size: 56px; margin-bottom: 10px; }

/* ---------- flash ---------- */
.flash { padding: 14px 18px; border-radius: var(--radius-sm); margin: 20px 0 0; font-size: 15px; font-weight: 600; }
.flash-success { background: var(--ok-bg); color: var(--ok-ink); }
.flash-error { background: var(--err-bg); color: var(--err-ink); }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: 72px; padding: 34px 0; background: #fff; }
.site-footer p { margin: 2px 0; font-size: 14px; }

/* ---------- responsive ---------- */
@media (max-width: 760px) {
    .cards { grid-template-columns: 1fr; }
    .hero { padding: 56px 0 44px; }
    .cta-row .btn { flex: 1 1 100%; }
    .nav-hi { display: none; }
}