:root {
  --bg: #f7f9f8; --card: #ffffff; --text: #14231c; --muted: #5b6b63; --border: #dfe7e3;
  --brand: #16a34a; --brand-dark: #047857; --brand-soft: #e7f7ee; --todo: #fff3bf;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0d1511; --card: #141f19; --text: #e8f1ec; --muted: #9db0a6; --border: #24352c; --brand-soft: #12301f; --todo: #4a3f0a; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
a { color: var(--brand-dark); }
@media (prefers-color-scheme: dark) { a { color: #4ade80; } }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }
header.site { border-bottom: 1px solid var(--border); background: var(--card); position: sticky; top: 0; z-index: 5; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--text); text-decoration: none; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
nav.main { display: flex; align-items: center; gap: 18px; font-size: 15px; }
nav.main a { color: var(--muted); text-decoration: none; }
nav.main a:hover { color: var(--text); }
.langs { display: flex; gap: 4px; }
.langs button { border: 1px solid var(--border); background: transparent; color: var(--muted); border-radius: 999px; padding: 3px 10px; font: inherit; font-size: 13px; cursor: pointer; }
.langs button[aria-pressed="true"] { background: var(--brand); border-color: var(--brand); color: #fff; }
.hero { padding: 72px 0 56px; background: linear-gradient(180deg, var(--brand-soft), transparent); }
.hero .wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 20px; color: var(--muted); margin: 0 0 28px; }
.badges { display: flex; flex-wrap: wrap; gap: 12px; }
.badge { display: inline-flex; flex-direction: column; border: 1px solid var(--border); background: var(--card); border-radius: 12px; padding: 8px 18px; min-width: 170px; }
.badge small { color: var(--muted); font-size: 12px; }
.badge strong { font-size: 17px; }
.phone { justify-self: center; width: 250px; aspect-ratio: 9 / 18; border-radius: 36px; border: 8px solid #1f2a24; background: var(--card); box-shadow: 0 20px 60px rgba(4, 120, 87, .25); padding: 18px 14px; display: flex; flex-direction: column; gap: 10px; overflow: hidden; }
.phone .bubble { padding: 10px 12px; border-radius: 16px; font-size: 14px; line-height: 1.35; max-width: 88%; }
.phone .me { align-self: flex-end; background: var(--brand); color: #fff; }
.phone .coach { background: var(--brand-soft); }
.phone .meter { margin-top: auto; background: var(--brand-soft); border-radius: 14px; padding: 10px 12px; font-size: 13px; }
.bar { height: 8px; border-radius: 4px; background: var(--border); margin: 6px 0; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--brand); border-radius: 4px; }
section { padding: 56px 0; }
section h2 { font-size: 32px; letter-spacing: -0.01em; margin: 0 0 8px; }
section .sub { color: var(--muted); margin: 0 0 32px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 22px; }
.card h3 { margin: 0 0 6px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 16px; }
.card .ico { font-size: 28px; margin-bottom: 8px; }
.alt { background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.pill { display: inline-block; padding: 2px 12px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-dark); font-size: 14px; margin: 3px 4px 3px 0; }
@media (prefers-color-scheme: dark) { .pill { color: #86efac; } }
.btn { display: inline-block; background: var(--brand); color: #fff !important; text-decoration: none; padding: 10px 20px; border-radius: 12px; font-weight: 600; }
.doc { padding: 40px 0 72px; }
.doc h1 { font-size: 36px; letter-spacing: -0.01em; margin: 0 0 4px; }
.doc .updated { color: var(--muted); margin: 0 0 28px; }
.doc h2 { font-size: 22px; margin: 34px 0 6px; }
.doc h3 { font-size: 18px; margin: 20px 0 4px; }
.doc ul { padding-left: 22px; }
.doc li { margin: 4px 0; }
.notice { border: 1px solid var(--border); border-left: 4px solid var(--brand); background: var(--card); border-radius: 10px; padding: 12px 16px; margin: 16px 0; }
.notice.warn { border-left-color: #dc2626; }
table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 12px 0; }
th, td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--brand-soft); }
mark.todo { background: var(--todo); color: inherit; padding: 0 4px; border-radius: 4px; }
footer.site { border-top: 1px solid var(--border); padding: 32px 0 48px; color: var(--muted); font-size: 15px; }
footer.site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
footer.site a { color: var(--muted); margin-right: 16px; }
.faq details { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; margin: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.lang[hidden] { display: none; }
@media (max-width: 820px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .phone { display: none; }
  nav.main .hide-sm { display: none; }
}
nav.main .lang:not([hidden]) { display: inline-flex; gap: 18px; align-items: center; }
.brand { white-space: nowrap; }
@media (max-width: 520px) { .brand { font-size: 16px; } nav.main { gap: 10px; font-size: 14px; } nav.main .lang:not([hidden]) { gap: 10px; } }