:root{
  --navy: #1D476F;
  --navy-dark: #0f2c47;
  --red: #A01010;
  --ink: #0b1220;
  --muted: #4b5468;
  --muted-soft: #6b7488;
  --bg: #f5faff;
  --bg-soft: #e9f3fc;
  --border: #e4e8f0;

  --accent-2: #2f6fd6;
  --accent-3: #38bdf8;
  --accent-grad: linear-gradient(135deg, var(--navy), var(--accent-2) 55%, var(--accent-3));
  --accent-grad-white: linear-gradient(135deg, var(--navy), var(--accent-2) 45%, #ffffff 100%);
  --accent-grad-soft: linear-gradient(135deg, rgba(29,71,111,.14), rgba(47,111,214,.14) 55%, rgba(56,189,248,.14));
  --accent-grad-rotator: linear-gradient(135deg, #38bdf8, #6d5ef8 55%, #a78bfa);

  --dark-bg: #070c17;
  --dark-bg-2: #0e1830;

  --radius: 16px;
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, .18);
  --shadow-glow: 0 20px 45px -18px rgba(47, 111, 214, .4);
  --container: 1120px;
  font-size: 16px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

a{ color: inherit; text-decoration: none; }
h1,h2,h3{ margin: 0; line-height: 1.15; }
p{ margin: 0; }
ul{ margin: 0; padding: 0; list-style: none; }

/* ===== Reveal on scroll ===== */
.reveal{ opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity: 1; transform: none; transition: none; }
}

/* ===== Buttons ===== */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 600;
  padding: 13px 26px;
  font-size: .95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background-color .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn--primary{ background: var(--accent-grad); color: #fff; box-shadow: 0 10px 26px -10px rgba(47,111,214,.5); }
.btn--primary:hover{ box-shadow: 0 16px 34px -12px rgba(47,111,214,.65); }
.btn--outline{ background: #fff; color: var(--navy); border-color: var(--border); }
.btn--outline:hover{ border-color: var(--navy); box-shadow: 0 8px 20px -12px rgba(29,71,111,.35); }
.btn--outline-light{ background: rgba(255,255,255,.06); color: #fff; border-color: rgba(255,255,255,.35); backdrop-filter: blur(6px); }
.btn--outline-light:hover{ background: rgba(255,255,255,.14); border-color: #fff; }
.btn--sm{ padding: 9px 18px; font-size: .85rem; }
.btn--lg{ padding: 15px 30px; font-size: 1rem; }
.btn--block{ width: 100%; }

/* ===== Header ===== */
.header{
  position: sticky;
  top: 0;
  z-index: 60;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.header__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.logo{ display: flex; align-items: center; gap: 10px; }
.logo__link{ display: flex; align-items: center; }
.logo__mark{ height: 26px; width: auto; display: block; }
.logo__mark--light{ filter: brightness(0) invert(1); }
.logo__badge{
  font-weight: 700;
  font-size: .78rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-grad);
  color: #fff;
  letter-spacing: .01em;
}
.logo__accent{
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav{ display: flex; gap: 28px; }
.nav a{ font-weight: 500; font-size: .95rem; color: var(--muted); position: relative; }
.nav a:hover{ color: var(--navy); }
.header__actions{ display: flex; align-items: center; gap: 12px; }
.burger{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  border: none;
  background: none;
  cursor: pointer;
}
.burger span{ display: block; width: 100%; height: 2px; background: var(--ink); border-radius: 2px; }

/* ===== Hero (dark, animated) ===== */
.hero{
  position: relative;
  overflow: hidden;
  padding: 108px 0 88px;
  background: radial-gradient(120% 100% at 50% -10%, var(--dark-bg-2), var(--dark-bg) 65%);
  color: #fff;
}
.hero__bg{
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(560px 420px at 14% 20%, rgba(56,189,248,.35), transparent 60%),
    radial-gradient(620px 460px at 86% 10%, rgba(47,111,214,.35), transparent 60%),
    radial-gradient(520px 420px at 60% 92%, rgba(255,255,255,.16), transparent 60%);
  filter: blur(10px);
  animation: drift 16s ease-in-out infinite alternate;
}
@keyframes drift{
  0%{ transform: translate3d(0,0,0) scale(1); }
  100%{ transform: translate3d(-2%, 2%, 0) scale(1.08); }
}
.hero__code{
  position: absolute;
  inset: 0;
  z-index: 0;
  margin: 0;
  padding: 90px 40px 40px;
  font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,.035);
  white-space: pre;
  overflow: hidden;
  user-select: none;
  column-width: 320px;
  column-gap: 48px;
  column-fill: auto;
}
.hero__code--bright{
  color: rgba(255,255,255,.8);
  opacity: 1;
  -webkit-mask-image: radial-gradient(190px circle at var(--mx, 50%) var(--my, 30%), #000 0%, transparent 80%);
  mask-image: radial-gradient(190px circle at var(--mx, 50%) var(--my, 30%), #000 0%, transparent 80%);
  transition: mask-position .05s linear, opacity .25s ease;
}
.hero--over-text .hero__code--bright{ opacity: 0; }
.hero--over-text .hero__glow{ opacity: 0; }
.hero__code--bright .tok-kw{ color: var(--accent-3); }
.hero__code--bright .tok-str{ color: #93c5fd; }
.hero__code--bright .tok-fn{ color: #ffffff; font-weight: 600; }
.hero__code--bright .tok-com{ color: rgba(255,255,255,.5); font-style: italic; }
.hero__code--bright .tok-num{ color: #fb923c; }
@media (pointer: coarse), (max-width: 720px){
  .hero__code--bright{ display: none; }
}
.hero__glow{
  position: absolute;
  inset: -20%;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 30%), rgba(255,255,255,.10), transparent 60%);
  transition: background .1s ease, opacity .25s ease;
}
@media (prefers-reduced-motion: reduce){
  .hero__bg{ animation: none; }
}
.hero__inner{ position: relative; z-index: 1; max-width: 780px; }
.badge{
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  color: #fff;
  font-weight: 600;
  font-size: .82rem;
  margin-bottom: 22px;
  border: 1px solid rgba(255,255,255,.18);
}
.hero__title{
  font-size: clamp(2.1rem, 4.6vw, 3.3rem);
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.rotator{
  display: inline-block;
  position: relative;
  background: var(--accent-grad-rotator);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__subtitle{
  font-size: 1.1rem;
  color: rgba(255,255,255,.72);
  max-width: 640px;
  margin-bottom: 32px;
}
.hero__cta{ display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== Marquee ===== */
.marquee{
  background: var(--navy-dark);
  color: #fff;
  overflow: hidden;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.marquee__track{
  display: flex;
  gap: 40px;
  width: max-content;
  animation: marquee 42s linear infinite;
}
.marquee__track span{
  font-weight: 600;
  font-size: .95rem;
  color: rgba(255,255,255,.85);
  white-space: nowrap;
}
.marquee__track span::after{
  content: "•";
  margin-left: 40px;
  color: var(--accent-3);
}
.marquee:hover .marquee__track{ animation-play-state: paused; }
@keyframes marquee{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce){
  .marquee__track{ animation-duration: 120s; }
}

/* ===== Stats band ===== */
.stats{ background: var(--bg-soft); padding: 56px 0; border-bottom: 1px solid var(--border); }
.stats__inner{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: center; }
.stat__num{
  display: block;
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 800;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 6px;
}
.stat__label{ color: var(--muted); font-size: .92rem; }

/* ===== Sections ===== */
.section{ padding: 88px 0; }
.section--soft{ background: var(--bg-soft); }
.kicker{
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 12px;
}
.section__title{
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.section__lead{
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin-bottom: 48px;
}

/* ===== Grids / Cards ===== */
.grid{ display: grid; gap: 24px; }
.grid--problems{ grid-template-columns: repeat(4, 1fr); }
.grid--scenarios{ grid-template-columns: repeat(3, 1fr); }
.grid--process{ grid-template-columns: repeat(4, 1fr); }
.grid--offers{ grid-template-columns: repeat(3, 1fr); }

.card{
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.card:hover{ box-shadow: var(--shadow-glow); transform: translateY(-4px); border-color: transparent; }
.card__icon{
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--accent-grad);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.card__icon svg{ width: 22px; height: 22px; }
.card h3{ font-size: 1.02rem; margin-bottom: 8px; }
.card p{ color: var(--muted); font-size: .92rem; }

.scenario{
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: box-shadow .2s ease, transform .2s ease;
}
.scenario:hover{ box-shadow: var(--shadow); transform: translateY(-3px); }
.scenario__tag{
  align-self: flex-start;
  font-size: .74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--navy);
  background: rgba(29,71,111,.08);
  padding: 5px 12px;
  border-radius: 999px;
}
.scenario p{ color: var(--muted); font-size: .95rem; }
.scenario__solution{ color: var(--ink) !important; font-weight: 600; }

.step{ position: relative; padding-top: 8px; }
.step__num{
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}
.step h3{ font-size: 1.02rem; margin-bottom: 8px; }
.step p{ color: var(--muted); font-size: .92rem; }

.offer{
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.offer:hover{ transform: translateY(-4px); box-shadow: var(--shadow-glow); border-color: transparent; }
.offer--highlight{
  border-color: transparent;
  box-shadow: var(--shadow-glow);
  position: relative;
  background:
    linear-gradient(#fff, #fff) padding-box,
    var(--accent-grad-white) border-box;
  border: 2px solid transparent;
}
.offer--highlight::before{
  content: "Популярный выбор";
  position: absolute;
  top: -13px; left: 26px;
  background: var(--accent-grad);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
}
.offer__icon{
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--navy);
  display: flex; align-items: center; justify-content: center;
}
.offer__icon svg{ width: 22px; height: 22px; }
.offer h3{ font-size: 1.15rem; }
.offer__price{ font-size: 1.4rem; font-weight: 800; color: var(--navy); }
.offer__desc{ color: var(--muted); font-size: .92rem; flex-grow: 1; }
.offers__note{ margin-top: 40px; color: var(--muted); font-size: .95rem; }
.offers__note a{ color: var(--navy); font-weight: 600; }

/* ===== Contact ===== */
.contact__inner--centered{
  display: block;
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}
.contact__inner--centered .section__lead{ margin-left: auto; margin-right: auto; }
.contact__list{ margin-top: 28px; display: flex; flex-direction: column; gap: 16px; }
.contact__list li{ display: flex; flex-direction: column; gap: 2px; }
.contact__inner--centered .contact__list{ align-items: center; }
.contact__label{ font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted-soft); }
.contact__list a{ font-weight: 700; font-size: 1.05rem; color: var(--navy); }
.contact__list a:hover{ text-decoration: underline; }
.contact__list--large li{ padding: 10px 0; border-bottom: 1px solid var(--border); width: 100%; max-width: 360px; }
.contact__list--large a, .contact__list--large span:last-child{ font-size: 1.35rem; }

/* ===== Footer ===== */
.footer{ background: var(--dark-bg); color: rgba(255,255,255,.75); padding: 56px 0 24px; }
.footer__inner{
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.footer .logo{ margin-bottom: 14px; }
.footer p{ font-size: .88rem; max-width: 320px; color: #fff; }
.footer p a{ color: #fff; text-decoration: underline; }
.footer__nav{ display: flex; flex-direction: column; gap: 10px; }
.footer__nav a:hover{ color: #fff; }
.footer__contacts{ display: flex; flex-direction: column; gap: 10px; }
.footer__contacts a:hover{ color: #fff; }
.footer__bottom{ padding-top: 20px; font-size: .8rem; }

/* ===== Floating CTA ===== */
.floating-cta{
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 70;
  background: var(--accent-grad);
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
  padding: 14px 24px;
  border-radius: 999px;
  box-shadow: 0 14px 32px -10px rgba(47,111,214,.55);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease, box-shadow .2s ease;
}
.floating-cta.is-visible{ opacity: 1; transform: none; pointer-events: auto; }
.floating-cta:hover{ box-shadow: 0 18px 40px -10px rgba(47,111,214,.7); transform: translateY(-2px); }

/* ===== Responsive ===== */
@media (max-width: 960px){
  .nav{ display: none; }
  .burger{ display: flex; }
  .grid--problems{ grid-template-columns: repeat(2, 1fr); }
  .grid--scenarios{ grid-template-columns: 1fr; }
  .grid--process{ grid-template-columns: repeat(2, 1fr); }
  .grid--offers{ grid-template-columns: 1fr; }
  .footer__inner{ grid-template-columns: 1fr; }
  .stats__inner{ grid-template-columns: 1fr; gap: 32px; }

  .header.nav-open .nav{
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: #fff;
    padding: 20px 24px 28px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
}

@media (max-width: 640px){
  .grid--problems{ grid-template-columns: 1fr; }
  .grid--process{ grid-template-columns: 1fr; }
  .hero{ padding: 72px 0 56px; }
  .section{ padding: 64px 0; }
  .header__actions .btn--sm{ padding: 8px 14px; font-size: .8rem; }
  .floating-cta{ right: 16px; bottom: 16px; padding: 12px 20px; font-size: .85rem; }
}