:root {
  --bg: #f7f5ec;
  --surface: #ffffff;
  --surface-2: #eef3e2;
  --text: #1f2a1c;
  --muted: #5f6b5a;
  --line: #dde3cf;
  --green: #3f7d3a;
  --green-2: #5aa04f;
  --gold: #c9962b;
  --gold-2: #e8b83f;
  --trad-bg: #e5f1da;
  --sci-bg: #e3ecf6;
  --sci: #2f5d8a;
  --radius: 16px;
  --shadow: 0 6px 24px rgba(31, 42, 28, .08);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141a12;
    --surface: #1c2419;
    --surface-2: #222d1e;
    --text: #e9efe0;
    --muted: #a3ae9b;
    --line: #2f3b2a;
    --green: #7cc06f;
    --green-2: #5aa04f;
    --gold: #e8b83f;
    --gold-2: #f2cc6a;
    --trad-bg: #24361f;
    --sci-bg: #1f2c3a;
    --sci: #8fb8e0;
    --shadow: 0 6px 24px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--green); }
img { max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); letter-spacing: -.01em; }
h3 { font-size: 1.2rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.center { text-align: center; }
.accent { color: var(--green); }

.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 12px clamp(16px, 4vw, 48px);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.logo { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.25rem; color: var(--text); text-decoration: none; }
.top nav { display: flex; align-items: center; gap: 20px; }
.top nav a:not(.btn) { color: var(--muted); text-decoration: none; }
.top nav a:not(.btn):hover { color: var(--text); }

.btn {
  display: inline-block; border: 0; cursor: pointer;
  padding: 14px 24px; border-radius: 999px;
  background: var(--gold-2); color: #1f2a1c;
  font: inherit; font-weight: 700; text-decoration: none;
  box-shadow: 0 3px 0 var(--gold);
  transition: transform .1s, box-shadow .1s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 0 var(--gold); }
.btn:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--gold); }
.btn:disabled { opacity: .6; cursor: wait; }
.btn-small { padding: 8px 16px; font-size: .95rem; }

main > .section, .hero { max-width: 1120px; margin: 0 auto; padding: clamp(48px, 8vw, 96px) clamp(16px, 4vw, 48px); }

.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; font-weight: 700; color: var(--gold); margin: 0 0 12px; }
.lead { font-size: 1.15rem; color: var(--muted); }
.slogan { font-size: 1.2rem; }
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 24px; }
.hero-art { position: relative; text-align: center; }
.hero-art img { width: min(320px, 70vw); filter: drop-shadow(var(--shadow)); }
.bubble {
  position: relative; margin: 8px auto 0; max-width: 300px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 16px; font-size: .95rem; box-shadow: var(--shadow);
}

.steps { list-style: none; counter-reset: s; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps li {
  counter-increment: s; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 8px;
}
.steps li::before {
  content: counter(s); width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center; background: var(--green-2); color: #fff; font-weight: 800;
}
.steps span { color: var(--muted); }

.tips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 24px; }
.tip { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.tip p { margin: 0 0 12px; }
.tag { display: inline-block; font-size: .8rem; font-weight: 700; padding: 2px 10px; border-radius: 999px; margin-right: 4px; }
.tag-trad { background: var(--trad-bg); color: var(--green); }
.tag-sci { background: var(--sci-bg); color: var(--sci); }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { background: var(--surface-2); border-radius: var(--radius); padding: 24px; }
.card-ico { font-size: 2rem; }
.card p { color: var(--muted); margin: 0; }

.zhabsovet, .offer { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: start; }
.council { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.council span { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: .9rem; }

.checks { padding: 0; list-style: none; }
.checks li { padding-left: 32px; position: relative; margin-bottom: 10px; }
.checks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--green); font-weight: 800; }

.form {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 14px;
}
.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: .95rem; }
.form input, .form select, .form textarea {
  font: inherit; font-weight: 400; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; width: 100%;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--green-2); outline-offset: 1px; }
.form .check { flex-direction: row; align-items: flex-start; gap: 10px; font-weight: 400; }
.form .check input { width: auto; margin-top: 5px; }
.form-msg { margin: 0; min-height: 1.5em; font-weight: 600; }
.form-msg.ok { color: var(--green); }
.form-msg.err { color: #c0392b; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { color: var(--muted); margin: 12px 0 0; }

.foot {
  display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  padding: 32px clamp(16px, 4vw, 48px); border-top: 1px solid var(--line);
}
.foot p { margin: 4px 0; }

.page { max-width: 760px; margin: 0 auto; padding: 48px 16px; }
.page h1 { font-size: 2rem; }

@media (max-width: 900px) {
  .hero, .zhabsovet, .offer { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .steps, .tips { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
  .top nav a:not(.btn) { display: none; }
}
@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
}