:root {
  --graphite: #2a2d34;
  --ink: #1b1c1f;
  --ink-2: #26282d;
  --lime: #d4ff00;
  --lime-dark: #b8de00;
  --paper: #ffffff;
  --gray: #f1f1ee;
  --line: #e2e2dc;
  --text: #1b1c1f;
  --muted: #6b6e76;
  --radius: 4px;
  --wrap: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; font-family: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--text); background: var(--paper); line-height: 1.55; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -0.01em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.muted { color: #9a9ca3; }
.small { font-size: 13px; }

/* Кнопки */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--lime); color: var(--ink); text-decoration: none; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: 14px; padding: 18px 34px; border-radius: var(--radius); border: 0; cursor: pointer; transition: background .2s, transform .2s; font-family: inherit; }
.btn:hover { background: var(--lime-dark); }
.btn:active { transform: translateY(1px); }
.btn--sm { padding: 11px 18px; font-size: 12px; }
.btn--dark { background: var(--ink); color: var(--lime); }
.btn--dark:hover { background: #000; }
.btn--wide { width: 100%; }
.kicker { text-transform: uppercase; letter-spacing: .14em; font-size: 13px; font-weight: 700; margin: 0 0 18px; color: #e9e9e6; }
.kicker--dark { color: var(--muted); }

/* Шапка */
.top { position: sticky; top: 0; z-index: 50; background: var(--graphite); color: #fff; }
.top__in { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #fff; }
.brand img { max-height: 44px; width: auto; }
.brand__mark { width: 40px; height: 40px; display: grid; place-items: center; background: var(--lime); color: var(--ink); font-weight: 800; font-size: 15px; border-radius: var(--radius); }
.brand__name { font-weight: 800; font-size: 20px; letter-spacing: -.01em; }
.nav { display: flex; align-items: center; gap: 28px; font-size: 15px; font-weight: 600; }
.nav a:not(.btn) { text-decoration: none; color: #d3d4d8; transition: color .2s; }
.nav a:not(.btn):hover { color: var(--lime); }
.nav__phone { color: #fff !important; white-space: nowrap; }
.burger { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; padding: 10px; }
.burger span { display: block; height: 2px; background: #fff; margin: 6px 0; transition: transform .2s, opacity .2s; }

/* Первый экран */
.hero { position: relative; background: var(--ink); color: #fff; min-height: 640px; display: flex; align-items: flex-end; }
.hero__media { position: absolute; inset: 0; overflow: hidden; }
.hero__media img, .hero__media svg { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); }
.hero__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(20,21,24,.92) 0%, rgba(20,21,24,.55) 45%, rgba(20,21,24,0) 75%); }
.led { animation: blink 2.6s infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }
.hero__wrap { position: relative; width: 100%; }
.hero__card { position: relative; z-index: 2; background: var(--ink); max-width: 560px; padding: 56px 48px 52px; margin-bottom: -120px; box-shadow: 0 30px 60px rgba(0,0,0,.25); }
.hero h1 { font-size: clamp(34px, 4.6vw, 58px); font-weight: 700; text-decoration: underline; text-decoration-thickness: 4px; text-underline-offset: 10px; text-decoration-skip-ink: none; margin-bottom: 26px; }
.hero__text { color: #c9cace; font-size: 17px; margin: 0 0 34px; }
.hero__actions { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; }
.link-light { color: #fff; font-weight: 700; text-decoration: none; border-bottom: 2px solid var(--lime); padding-bottom: 2px; }

/* Салатовая полоса */
.band { background: var(--lime); color: var(--ink); }
.band__in { min-height: 200px; display: flex; align-items: center; justify-content: flex-end; gap: 56px; padding-top: 40px; padding-bottom: 40px; padding-left: 620px; }
.stat strong { display: block; font-size: 44px; font-weight: 800; line-height: 1; }
.stat span { font-size: 14px; font-weight: 600; }
.band__slogan { font-size: 22px; font-weight: 800; margin: 0; max-width: 420px; }

/* Секции */
.section { padding: 110px 0; }
.section--gray { background: var(--gray); }
.section--dark { background: var(--graphite); color: #fff; }
.h2 { font-size: clamp(30px, 3.6vw, 46px); font-weight: 800; margin-bottom: 48px; }
.h2--line { text-decoration: underline; text-decoration-color: var(--lime); text-decoration-thickness: 6px; text-underline-offset: 8px; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card { background: #fff; border: 2px solid var(--line); padding: 36px 30px 30px; display: flex; flex-direction: column; gap: 14px; transition: background .25s, color .25s; }
.card:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.card__num { font-weight: 800; font-size: 14px; color: var(--muted); }
.card:hover .card__num { color: var(--lime); }
.card h3 { font-size: 22px; font-weight: 800; }
.card p { margin: 0; color: var(--muted); flex: 1; }
.card:hover p { color: #b9bbc0; }
.card__foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 10px; }
.price { font-weight: 800; }
.card__link { font-weight: 700; text-decoration: none; margin-left: auto; border-bottom: 2px solid var(--lime); }

.about { display: grid; grid-template-columns: 1fr 1.6fr; gap: 60px; align-items: start; }
.about__text { font-size: 18px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 30px; counter-reset: s; }
.steps li { counter-increment: s; border-top: 3px solid var(--lime); padding-top: 26px; }
.steps li::before { content: counter(s, decimal-leading-zero); display: block; font-size: 52px; font-weight: 800; color: #4a4e57; line-height: 1; margin-bottom: 18px; }
.steps h3 { font-size: 21px; margin-bottom: 10px; }
.steps p { color: #b9bbc0; margin: 0; }

/* Форма */
.request { background: var(--gray); }
.request__grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 64px; align-items: start; }
.request__intro p { color: var(--muted); font-size: 17px; }
.big-phone { display: inline-block; margin-top: 18px; font-size: 30px; font-weight: 800; text-decoration: none; border-bottom: 4px solid var(--lime); }
.form { background: #fff; padding: 40px; border-top: 6px solid var(--lime); box-shadow: 0 20px 50px rgba(0,0,0,.06); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.fld { display: block; margin-bottom: 18px; }
.fld span { display: block; font-size: 13px; font-weight: 700; margin-bottom: 7px; }
.fld input, .fld select, .fld textarea { width: 100%; font: inherit; font-size: 16px; padding: 13px 14px; border: 1.5px solid var(--line); border-radius: var(--radius); background: #fbfbf9; color: var(--text); transition: border-color .2s, background .2s; }
.fld input:focus, .fld select:focus, .fld textarea:focus { outline: none; border-color: var(--ink); background: #fff; }
.fld .bad { border-color: #d1453b; }
.fld textarea { resize: vertical; min-height: 120px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--muted); margin: 4px 0 22px; cursor: pointer; }
.check input { margin-top: 3px; width: 18px; height: 18px; accent-color: var(--ink); flex-shrink: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__err { color: #c0392b; font-weight: 600; margin: 0 0 16px; }
.form__ok { text-align: center; padding: 40px 10px; }
.form__ok strong { display: block; font-size: 28px; margin-bottom: 10px; }
.form__ok p { color: var(--muted); margin: 0 0 26px; }
[hidden] { display: none !important; }

/* Подвал */
.foot { background: var(--ink); color: #fff; padding: 70px 0 30px; }
.foot__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.foot h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .14em; color: var(--lime); margin-bottom: 18px; }
.foot a { display: block; text-decoration: none; color: #d3d4d8; margin-bottom: 9px; }
.foot a:hover { color: var(--lime); }
.foot p { margin: 0 0 9px; }
.brand--foot { margin-bottom: 14px; }
.foot__bottom { border-top: 1px solid #33363d; margin-top: 50px; padding-top: 24px; font-size: 13px; color: #8b8e95; }

/* Адаптив */
@media (max-width: 1100px) {
  .band__in { padding-left: 24px; justify-content: flex-start; padding-top: 170px; flex-wrap: wrap; gap: 36px; }
}
@media (max-width: 900px) {
  .nav { position: fixed; inset: 76px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--graphite); padding: 8px 24px 24px; transform: translateY(-120%); transition: transform .25s; box-shadow: 0 20px 30px rgba(0,0,0,.3); }
  .nav.open { transform: none; }
  .nav a:not(.btn) { padding: 14px 0; border-bottom: 1px solid #3a3d45; }
  .nav .btn { margin-top: 16px; }
  .burger { display: block; }
  .burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  .request__grid, .about { grid-template-columns: 1fr; gap: 36px; }
  .foot__grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .hero { min-height: 560px; }
  .hero__card { padding: 36px 24px; margin: 0 -16px -110px; }
  .hero h1 { text-decoration-thickness: 3px; text-underline-offset: 7px; }
  .hero__media::after { background: linear-gradient(0deg, rgba(20,21,24,.9) 20%, rgba(20,21,24,.3) 100%); }
  .band__in { padding-top: 150px; }
  .stat strong { font-size: 36px; }
  .section { padding: 72px 0; }
  .row { grid-template-columns: 1fr; gap: 0; }
  .form { padding: 26px 20px; }
  .big-phone { font-size: 24px; }
}