:root {
  --bg: #ffffff;
  --bg-soft: #f5f7f6;
  --text: #0f1a16;
  --muted: #55625d;
  --line: #e2e8e5;
  --accent: #059669;
  --accent-ink: #ffffff;
  --accent-soft: #e7f6f0;
  --warn-soft: #fff7e6;
  --radius: 14px;
  --max: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1311; --bg-soft: #131b18; --text: #e9efec; --muted: #9db0a8; --line: #23302b;
    --accent: #34d399; --accent-ink: #052e22; --accent-soft: #10241d; --warn-soft: #2a2312;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--accent); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
section { padding: 72px 0; }
section.soft { background: var(--bg-soft); }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 12px; }
h1 { font-size: clamp(34px, 5.4vw, 58px); font-weight: 800; }
h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 750; }
h3 { font-size: 19px; }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--muted); max-width: 720px; }
.muted { color: var(--muted); }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }

/* header */
header.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--text); text-decoration: none; }
.logo i { width: 30px; height: 30px; border-radius: 8px; background: #059669; color: #fff; display: grid; place-items: center; font-style: normal; font-size: 18px; }
nav.links { display: flex; gap: 22px; margin-left: auto; }
nav.links a { color: var(--muted); text-decoration: none; font-size: 15px; }
nav.links a:hover { color: var(--text); }
.lang { font-size: 14px; color: var(--muted); text-decoration: none; border: 1px solid var(--line); border-radius: 8px; padding: 4px 10px; }
@media (max-width: 860px) { nav.links { display: none; } .lang { margin-left: auto; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 22px; border-radius: 12px; font-weight: 650; text-decoration: none; font-size: 16px; border: 1px solid transparent; transition: transform .08s ease, box-shadow .15s ease; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 6px 20px -8px color-mix(in srgb, var(--accent) 70%, transparent); }
.btn.ghost { border-color: var(--line); color: var(--text); background: var(--bg); }
.btn.small { padding: 8px 14px; font-size: 14px; border-radius: 10px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.note { font-size: 14px; color: var(--muted); margin-top: 12px; }

/* hero */
.hero { padding: 84px 0 64px; }
.hero .grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero .grid { grid-template-columns: 1fr; } }
.badge { display: inline-block; background: var(--accent-soft); color: var(--accent); font-weight: 650; font-size: 14px; padding: 6px 12px; border-radius: 99px; margin-bottom: 18px; }

/* phone mock (reminder in WhatsApp) */
.mock { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 22px; padding: 18px; max-width: 420px; margin-left: auto; }
.mock .bar { display: flex; align-items: center; gap: 10px; padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 14px; font-weight: 650; }
.mock .bar span { width: 34px; height: 34px; border-radius: 50%; background: var(--accent-soft); display: grid; place-items: center; color: var(--accent); font-weight: 800; }
.bubble { background: var(--bg); border: 1px solid var(--line); border-radius: 14px 14px 14px 4px; padding: 10px 14px; font-size: 15px; margin-bottom: 10px; max-width: 92%; }
.bubble.me { margin-left: auto; border-radius: 14px 14px 4px 14px; background: var(--accent-soft); border-color: transparent; }
.bubble small { display: block; color: var(--muted); font-size: 12px; text-align: right; margin-top: 4px; }
.paid { display: inline-flex; gap: 6px; align-items: center; font-size: 14px; color: var(--accent); font-weight: 650; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 32px; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .cards, .cards.two { grid-template-columns: 1fr; } }
.card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
section.soft .card { background: var(--bg); }
.card .ico { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-bottom: 14px; }
.card p { margin: 0; color: var(--muted); }
.step { font-weight: 800; color: var(--accent); font-size: 14px; letter-spacing: .04em; text-transform: uppercase; }

/* comparison */
.table-wrap { overflow-x: auto; margin-top: 28px; border: 1px solid var(--line); border-radius: var(--radius); }
table.cmp { width: 100%; border-collapse: collapse; min-width: 620px; font-size: 16px; }
table.cmp th, table.cmp td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
table.cmp th { background: var(--bg-soft); font-size: 14px; color: var(--muted); font-weight: 650; }
table.cmp td.us { background: var(--accent-soft); font-weight: 600; }
table.cmp tr:last-child td { border-bottom: 0; }

/* pricing */
.price { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 32px; }
@media (max-width: 860px) { .price { grid-template-columns: 1fr; } }
.plan { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: var(--bg); }
.plan.main { border: 2px solid var(--accent); }
.plan .sum { font-size: 40px; font-weight: 800; margin: 8px 0; }
.plan .sum small { font-size: 16px; color: var(--muted); font-weight: 500; }
.plan ul { padding-left: 20px; margin: 16px 0 0; color: var(--muted); }
.plan li { margin-bottom: 6px; }

/* faq */
.faq { max-width: 820px; margin: 28px auto 0; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 650; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq p { color: var(--muted); margin: 10px 0 0; }

/* misc */
.callout { background: var(--warn-soft); border-radius: var(--radius); padding: 16px 18px; font-size: 15px; }
.cta { text-align: center; }
footer { border-top: 1px solid var(--line); padding: 40px 0; font-size: 14px; color: var(--muted); }
footer .cols { display: flex; flex-wrap: wrap; gap: 24px 48px; justify-content: space-between; }
footer a { color: var(--muted); }
footer nav { display: flex; flex-direction: column; gap: 6px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; font-size: 15px; margin-top: 16px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; font-family: ui-monospace, Consolas, monospace; }
ol.howto li { margin-bottom: 10px; }

/* mobile */
@media (max-width: 900px) { .mock { margin: 0 auto; width: 100%; } }
@media (max-width: 600px) {
  body { font-size: 16px; }
  section { padding: 48px 0; }
  .hero { padding: 40px 0 36px; }
  .hero .grid { gap: 32px; }
  header.top .wrap { gap: 10px; height: 58px; }
  .logo { font-size: 18px; }
  .card { padding: 18px; }
  .plan { padding: 22px; }
  .plan .sum { font-size: 32px; }
  .actions { flex-direction: column; align-items: stretch; }
  .actions .btn { width: 100%; }
  .table-wrap { margin-left: -16px; margin-right: -16px; border-radius: 0; border-left: 0; border-right: 0; }
  table.cmp { font-size: 14px; min-width: 560px; }
  table.cmp th, table.cmp td { padding: 10px 12px; }
  table.cmp td:first-child, table.cmp th:first-child { position: sticky; left: 0; background: var(--bg); z-index: 1; }
  table.cmp th:first-child { background: var(--bg-soft); }
  .faq summary { font-size: 16px; }
  footer .cols { flex-direction: column; gap: 24px; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 8px; }
}
@media (max-width: 360px) {
  .lang { padding: 4px 8px; font-size: 13px; }
  header.top .btn.small { padding: 8px 10px; }
}