:root {
  --ink: #101416;
  --ink-2: #171d20;
  --steel: #647178;
  --paper: #f4f1ea;
  --paper-2: #ebe6dc;
  --white: #fffdf8;
  --amber: #e99a2d;
  --amber-2: #ffbd5a;
  --line: rgba(16, 20, 22, .14);
  --radius: 24px;
  --shadow: 0 24px 70px rgba(15, 20, 22, .13);
  --container: min(1180px, calc(100vw - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
.container { width: var(--container); margin-inline: auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: #a96711;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.eyebrow::before { width: 30px; height: 2px; content: ""; background: var(--amber); }
.section { padding: 96px 0; }
.section--dark { color: var(--white); background: var(--ink); }
.section--soft { background: var(--paper-2); }
.section-head { display: grid; grid-template-columns: 1.2fr .8fr; gap: 70px; align-items: end; margin-bottom: 46px; }
.section-head p { margin: 0; color: #5f686c; }
.section--dark .section-head p { color: #b7c0c3; }
h1, h2, h3 { margin: 0; font-weight: 760; line-height: 1.08; letter-spacing: -.035em; }
h1 { max-width: 920px; font-size: clamp(44px, 6.7vw, 92px); }
h2 { font-size: clamp(34px, 4.2vw, 58px); }
h3 { font-size: 24px; }
p { margin: 0 0 1em; }
.lead { max-width: 800px; color: #d4dadc; font-size: clamp(19px, 2vw, 24px); line-height: 1.5; }
.btn {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .03em;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { color: var(--ink); background: var(--amber-2); }
.btn--primary:hover { background: #ffc977; }
.btn--ghost { color: var(--white); border-color: rgba(255, 255, 255, .26); background: rgba(255, 255, 255, .05); }
.btn--dark { color: var(--white); background: var(--ink); }
.topline { color: #d7dde0; background: #0a0d0e; font-size: 12px; letter-spacing: .04em; }
.topline .container { display: flex; min-height: 34px; align-items: center; justify-content: space-between; gap: 20px; }
.topline a { color: var(--amber-2); }
.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid rgba(255, 255, 255, .09);
  color: var(--white);
  background: rgba(16, 20, 22, .94);
  backdrop-filter: blur(16px);
}
.nav-row { display: flex; min-height: 76px; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 12px; margin-right: auto; font-size: 21px; font-weight: 850; letter-spacing: -.035em; }
.brand-mark { display: grid; width: 34px; height: 34px; place-items: center; border: 2px solid var(--amber); border-radius: 10px; color: var(--amber-2); transform: rotate(12deg); }
.brand-mark span { transform: rotate(-12deg); }
.brand small { display: block; color: #9da7aa; font-size: 9px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 24px; font-size: 13px; font-weight: 700; }
.main-nav > a { padding: 28px 0 24px; border-bottom: 3px solid transparent; }
.main-nav > a:hover, .main-nav > a[aria-current="page"] { color: var(--amber-2); border-color: var(--amber); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid #465054; border-radius: 50%; color: white; background: transparent; }
.hero {
  position: relative;
  display: grid;
  min-height: 710px;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: #0f1315 url('/assets/reduktor-hero.png') center / cover no-repeat;
}
.hero::before { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, rgba(8, 11, 12, .98) 0%, rgba(8, 11, 12, .88) 36%, rgba(8, 11, 12, .18) 70%, rgba(8, 11, 12, .12) 100%); }
.hero::after { position: absolute; right: 0; bottom: 0; left: 0; height: 150px; content: ""; background: linear-gradient(transparent, rgba(8, 11, 12, .72)); }
.hero .container { position: relative; z-index: 1; padding: 85px 0 110px; }
.hero h1 { max-width: 800px; }
.hero h1 em { color: var(--amber-2); font-style: normal; }
.hero .lead { max-width: 640px; margin: 28px 0 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 34px; margin: 46px 0 0; padding: 0; list-style: none; color: #c8d0d2; font-size: 13px; }
.hero-proof b { display: block; margin-bottom: 2px; color: white; font-size: 17px; }
.breadcrumbs { padding: 24px 0; color: #6c767a; font-size: 13px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 9px; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li:not(:last-child)::after { margin-left: 9px; content: "/"; color: #aab0b1; }
.page-hero { padding: 62px 0 76px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 1050px; font-size: clamp(42px, 6vw, 76px); }
.page-hero .intro { max-width: 850px; margin: 26px 0 0; color: #556064; font-size: 21px; }
.page-hero .hero-actions { margin-top: 30px; }
.grid { display: grid; gap: 20px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.card {
  position: relative;
  overflow: hidden;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 248, .74);
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card p { margin: 14px 0 0; color: #5a6468; }
.card-link { display: inline-flex; margin-top: 22px; color: #9a5e0e; font-size: 14px; font-weight: 800; }
.card-link::after { margin-left: 8px; content: "→"; }
.card-no { display: block; margin-bottom: 42px; color: #a66a17; font: 700 12px/1 monospace; letter-spacing: .1em; }
.spec-card { color: var(--white); border-color: #343b3e; background: #1a2023; }
.spec-card p { color: #b7c0c3; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; color: #525c60; font-size: 12px; font-weight: 700; }
.section--dark .tag { border-color: #3e474a; color: #c5ccce; }
.split { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(40px, 8vw, 110px); align-items: start; }
.split__aside { position: sticky; top: 130px; }
.split__body h2 { margin-bottom: 26px; }
.split__body h3 { margin: 38px 0 15px; }
.split__body p, .content p { color: #4f595d; }
.check-list { display: grid; gap: 12px; margin: 28px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 32px; }
.check-list li::before { position: absolute; top: 3px; left: 0; display: grid; width: 20px; height: 20px; place-items: center; border-radius: 50%; content: "✓"; color: var(--ink); background: var(--amber-2); font-size: 12px; font-weight: 900; }
.process { counter-reset: step; }
.process-item { position: relative; padding: 30px 26px 30px 78px; border-top: 1px solid var(--line); }
.process-item::before { position: absolute; top: 31px; left: 24px; counter-increment: step; content: "0" counter(step); color: #a56410; font: 800 13px/1 monospace; }
.process-item p { margin: 8px 0 0; color: #566064; }
.fact-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #363e41; border-bottom: 1px solid #363e41; }
.fact { padding: 30px 24px; border-right: 1px solid #363e41; }
.fact:last-child { border: 0; }
.fact strong { display: block; color: var(--amber-2); font-size: 28px; line-height: 1.2; }
.fact span { color: #b8c0c2; font-size: 13px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: var(--white); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 17px 20px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: #7a5a2b; background: #eee8dc; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
.faq { max-width: 900px; margin-inline: auto; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 24px 50px 24px 0; cursor: pointer; list-style: none; font-size: 19px; font-weight: 750; }
.faq summary::after { position: absolute; top: 26px; right: 8px; content: "+"; color: #9a5c0a; font-size: 24px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 790px; padding: 0 0 22px; color: #556064; }
.cta-band { padding: 64px 0; color: var(--white); background: var(--amber); }
.cta-band .container { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
.cta-band p { max-width: 620px; margin: 14px 0 0; color: #392306; }
.cta-band .hero-actions { justify-content: flex-end; }
.site-footer { padding: 68px 0 28px; color: #c3cbcd; background: #0c0f10; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .7fr .7fr 1fr; gap: 40px; }
.footer-title { margin-bottom: 17px; color: white; font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.footer-links { display: grid; gap: 9px; font-size: 14px; }
.footer-links a:hover { color: var(--amber-2); }
.footer-note { max-width: 360px; margin-top: 20px; color: #8f999c; font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; margin-top: 48px; padding-top: 24px; border-top: 1px solid #2d3436; color: #7e898c; font-size: 12px; }
.modal { position: fixed; z-index: 100; inset: 0; display: none; place-items: center; padding: 20px; background: rgba(5, 7, 8, .78); backdrop-filter: blur(10px); }
.modal.is-open { display: grid; }
.modal-panel { position: relative; width: min(600px, 100%); max-height: calc(100vh - 40px); overflow-y: auto; padding: 38px; border-radius: 26px; background: var(--paper); box-shadow: 0 30px 100px #000; }
.modal-close { position: absolute; top: 16px; right: 16px; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 50%; cursor: pointer; background: transparent; }
.modal-panel h2 { margin-bottom: 12px; font-size: 34px; }
.modal-panel > p { color: #5c6669; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 24px; }
.field { display: grid; gap: 7px; }
.field--wide { grid-column: 1 / -1; }
.field label { font-size: 12px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.field input, .field select, .field textarea { width: 100%; padding: 13px 14px; border: 1px solid #c7c2b9; border-radius: 12px; outline: none; background: #fffdf8; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--amber); box-shadow: 0 0 0 3px rgba(233, 154, 45, .16); }
.field textarea { min-height: 110px; resize: vertical; }
.form-note { grid-column: 1 / -1; color: #6c7578; font-size: 12px; }
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
.accent { color: #a66610; }
.callout { padding: 30px; border-left: 4px solid var(--amber); border-radius: 0 18px 18px 0; background: var(--paper-2); }
.callout p:last-child { margin-bottom: 0; }
.note { font-size: 14px; color: #6c7578; }

@media (max-width: 980px) {
  .main-nav { position: fixed; top: 110px; right: 0; bottom: 0; left: 0; display: none; align-content: start; padding: 30px 24px; background: var(--ink); }
  .nav-open .main-nav { display: grid; }
  .main-nav > a { padding: 14px 0; font-size: 18px; }
  .nav-toggle { display: block; }
  .nav-row > .btn { display: none; }
  .section-head, .split, .cta-band .container { grid-template-columns: 1fr; gap: 28px; }
  .split__aside { position: static; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .fact-strip { grid-template-columns: repeat(2, 1fr); }
  .fact:nth-child(2) { border-right: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 650px) {
  :root { --container: min(100% - 28px, 1180px); --radius: 18px; }
  body { font-size: 16px; }
  .topline span:first-child { display: none; }
  .nav-row { min-height: 68px; }
  .main-nav { top: 102px; }
  .hero { min-height: 670px; background-position: 65% center; }
  .hero::before { background: linear-gradient(90deg, rgba(8, 11, 12, .97), rgba(8, 11, 12, .78)); }
  .hero .container { padding: 70px 0 90px; }
  .section { padding: 68px 0; }
  .grid--3, .grid--2, .form-grid, .footer-grid { grid-template-columns: 1fr; }
  .field--wide { grid-column: auto; }
  .fact-strip { grid-template-columns: 1fr; }
  .fact { border-right: 0; border-bottom: 1px solid #363e41; }
  .card { padding: 25px; }
  .footer-bottom { flex-direction: column; }
  .cta-band .hero-actions { justify-content: flex-start; }
  .modal-panel { padding: 30px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}