:root {
  --black: #000;
  --white: #fff;
  --gray: #bdbdbd;
  --line: #2a2a2a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--black);
  color: var(--white);
  line-height: 1.5;
}
.container { width: min(1120px, 92%); margin: 0 auto; }
.topbar { position: sticky; top: 0; background: #000; border-bottom: 1px solid var(--line); z-index: 10; }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.logo { height: 34px; }
.hero { padding: 90px 0 70px; border-bottom: 1px solid var(--line); }
.badge { text-transform: uppercase; letter-spacing: .1em; font-size: .75rem; color: var(--gray); }
h1 { font-size: clamp(2rem, 7vw, 4rem); max-width: 14ch; margin: 12px 0; }
h1 span { border-bottom: 3px solid #fff; }
.subtitle { max-width: 60ch; color: var(--gray); }
.hero__ctas { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0; }
.kpis { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.kpis div { border: 1px solid var(--line); padding: 14px; }
.kpis strong { display: block; font-size: 1.5rem; }
.kpis span { color: var(--gray); font-size: .9rem; }
.section { padding: 64px 0; border-bottom: 1px solid var(--line); }
.section--light { background: #fff; color: #000; }
.section--light .card, .section--light .quote, .section--light details { border-color: #e6e6e6; }
h2 { font-size: clamp(1.6rem, 5vw, 2.4rem); margin: 0 0 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.card, .quote { border: 1px solid var(--line); padding: 18px; }
.price .value { font-size: 1.8rem; font-weight: 700; }
.featured { outline: 2px solid #fff; }
.section--light .featured { outline: 2px solid #000; }
.steps { margin: 0; padding-left: 20px; display: grid; gap: 10px; }
.quote span { display: block; margin-top: 10px; color: #888; font-size: .88rem; }
.faq details { border: 1px solid var(--line); padding: 12px 14px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 700; }
.objection { max-width: 70ch; }
.lead-wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: 20px; align-items: start; }
form { border: 1px solid var(--line); padding: 18px; }
label { display: block; font-size: .92rem; margin-bottom: 11px; }
input, textarea {
  width: 100%;
  margin-top: 6px;
  background: #0e0e0e;
  color: #fff;
  border: 1px solid #343434;
  padding: 10px;
}
.section--light input, .section--light textarea { background: #fff; color: #000; }
input:focus, textarea:focus { outline: 2px solid #fff; outline-offset: 1px; }
.btn {
  display: inline-block;
  padding: 12px 16px;
  border: 1px solid #fff;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}
.btn--primary { background: #fff; color: #000; }
.btn--outline, .btn--ghost { background: transparent; color: #fff; }
.btn--full { width: 100%; }
.feedback { min-height: 22px; margin-top: 10px; font-size: .92rem; }
.feedback.success { color: #9cffb4; }
.feedback.error { color: #ff9f9f; }
input.invalid { border-color: #ff9f9f; }
@media (max-width: 900px) {
  .grid-3, .kpis, .lead-wrap { grid-template-columns: 1fr; }
}