:root {
  --bg: #fbfaf7;
  --bg-2: #f1efe9;
  --ink: #16181d;
  --ink-2: #4a4f5a;
  --ink-3: #8a8f99;
  --line: #e2dfd7;
  --accent: #0f6b4f;
  --accent-ink: #ffffff;
  --accent-soft: #e3f2ec;
  --danger: #b4452f;
  --danger-soft: #f8e9e5;
  --radius: 14px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317; --bg-2: #181b21; --ink: #ecebe6; --ink-2: #b8bbc3; --ink-3: #7d828d;
    --line: #272b33; --accent: #3fb58d; --accent-ink: #0b1d16; --accent-soft: #15302a;
    --danger: #e0725a; --danger-soft: #3a1f19;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.015em; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 600; }
p { margin: 0 0 1em; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
section { padding: 72px 0; border-top: 1px solid var(--line); }
.sub { color: var(--ink-2); font-size: 1.1rem; max-width: 680px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* header */
.top { position: sticky; top: 0; z-index: 10; background: var(--bg); border-bottom: 1px solid var(--line); }
.top__row { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { font-family: var(--mono); font-weight: 500; font-size: 1.15rem; color: var(--ink); }
.logo__mark { color: var(--accent); }
.top__nav { display: flex; gap: 22px; align-items: center; }
.top__nav a:not(.btn) { color: var(--ink-2); font-size: .95rem; }
@media (max-width: 640px) { .top__nav a:not(.btn) { display: none; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 20px; border-radius: 10px; background: var(--accent); color: var(--accent-ink); font-weight: 600; border: 1px solid transparent; cursor: pointer; font-size: 1rem; font-family: inherit; transition: transform .08s ease, filter .15s ease; }
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.btn:active { transform: translateY(1px); }
.btn--lg { padding: 15px 26px; font-size: 1.05rem; }
.btn--sm { padding: 8px 14px; font-size: .9rem; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { background: var(--bg-2); }
.btn[disabled] { opacity: .6; cursor: progress; }

/* hero */
.hero { border-top: 0; padding: 88px 0 72px; }
.eyebrow { font-family: var(--mono); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.lead { font-size: 1.25rem; color: var(--ink-2); max-width: 720px; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 36px; }
.hero__facts { list-style: none; padding: 0; margin: 0; display: flex; gap: 28px; flex-wrap: wrap; color: var(--ink-2); }
.hero__facts strong { color: var(--ink); font-family: var(--mono); font-weight: 500; }

/* symptoms */
.symptoms { background: var(--bg-2); }
.checklist { border: 0; padding: 0; margin: 0 0 20px; display: grid; gap: 10px; max-width: 720px; }
.checklist label { display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; cursor: pointer; transition: border-color .15s; }
.checklist label:has(:checked) { border-color: var(--accent); background: var(--accent-soft); }
.checklist input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }
.symptoms__result { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.symptoms__result p { margin: 0; }
.count { font-family: var(--mono); font-size: 1.1rem; margin-right: 10px; }
.count b { font-size: 1.6rem; color: var(--accent); }
.symptoms__result.is-hot .count b { color: var(--danger); }

/* why */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-top: 28px; }
.stat { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
.stat b { display: block; font-family: var(--mono); font-size: 2.2rem; font-weight: 500; color: var(--ink); margin-bottom: 6px; }
.stat p { color: var(--ink-2); font-size: .95rem; min-height: 4.4em; }
.stat a { font-size: .85rem; font-family: var(--mono); }

/* how */
.steps { counter-reset: step; list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 14px; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); }
.steps li::before { grid-row: 1 / span 2; content: counter(step, decimal-leading-zero); font-family: var(--mono); color: var(--accent); font-size: 1.4rem; line-height: 1.1; }
.steps p { grid-column: 2; margin: 0; color: var(--ink-2); }

/* price */
.price { background: var(--bg-2); }
.calc { margin: 32px 0 20px; padding: 26px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); display: grid; gap: 22px; max-width: 720px; }
.calc__row { display: grid; grid-template-columns: 1fr auto; gap: 6px 14px; align-items: center; }
.calc__row label { color: var(--ink-2); }
.calc__row output { font-family: var(--mono); font-size: 1.1rem; }
.calc__row input { grid-column: 1 / -1; width: 100%; accent-color: var(--accent); }
.calc__total { display: grid; gap: 2px; padding-top: 18px; border-top: 1px dashed var(--line); }
.calc__total span { color: var(--ink-2); }
.calc__total b { font-family: var(--mono); font-size: 2.4rem; font-weight: 500; }
.calc__total small { color: var(--ink-3); }
.price__example { color: var(--ink-2); max-width: 720px; }
.price__cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* scope */
.scope__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; }
.list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.list li { padding-left: 30px; position: relative; color: var(--ink-2); }
.list li::before { position: absolute; left: 0; top: 0; font-family: var(--mono); font-weight: 500; }
.list--yes li::before { content: "+"; color: var(--accent); }
.list--no li::before { content: "–"; color: var(--danger); }

/* table */
.table { width: 100%; border-collapse: collapse; margin-top: 24px; }
.table th, .table td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { font-family: var(--mono); font-weight: 500; font-size: .85rem; color: var(--ink-3); text-transform: uppercase; letter-spacing: .05em; }
.table td { color: var(--ink-2); }
.table td b { color: var(--ink); }

/* faq */
.faq details { border-bottom: 1px solid var(--line); padding: 6px 0; }
.faq summary { cursor: pointer; padding: 14px 0; font-weight: 600; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--accent); flex: none; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--ink-2); margin: 0 0 16px; max-width: 760px; }

/* team */
.team { background: var(--bg-2); }
.team__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 28px; }
.person { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg); }
.person__avatar { width: 56px; height: 56px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; font-family: var(--mono); font-size: 1.3rem; margin-bottom: 14px; }
.person p { color: var(--ink-2); font-size: .95rem; }
.person a { font-family: var(--mono); font-size: .85rem; }

/* form */
#lead-form { display: grid; gap: 18px; max-width: 680px; margin-top: 28px; }
.field { display: grid; gap: 6px; }
.field--2 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.field--2 > div { display: grid; gap: 6px; }
.field label { font-weight: 500; font-size: .95rem; }
.field input, .field select, .field textarea { font: inherit; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); width: 100%; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.field.is-invalid input { border-color: var(--danger); }
.field__error { color: var(--danger); font-size: .9rem; margin: 0; }
.field--hp { position: absolute; left: -9999px; top: -9999px; }
.req { color: var(--danger); }
.form__note { color: var(--ink-3); font-size: .85rem; margin: 0; }
.form__status { margin: 0; font-weight: 500; min-height: 1.5em; }
.form__status.is-ok { color: var(--accent); }
.form__status.is-err { color: var(--danger); }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 28px 0; color: var(--ink-3); font-size: .9rem; }
.foot__row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.foot p { margin: 0; }