:root {
  
  --blue:        #3a6ef0;
  --blue-bright: #5b86f5;
  --blue-deep:   #1f3f9e;
  
  --bg:        #070a12;
  --bg-2:      #0a0e1a;
  --surface:   #0e1320;
  --surface-2: #121829;
  --line:      rgba(140, 162, 210, 0.12);
  --line-2:    rgba(140, 162, 210, 0.20);
  
  --ink:       #eef2fb;
  --ink-soft:  #aab4ca;
  --ink-mute:  #6b768f;
  
  --display: "Space Grotesk", system-ui, sans-serif;
  --body:    "IBM Plex Sans", system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, monospace;

  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

.kicker {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-bright);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--blue);
  display: inline-block;
}

.section {
  position: relative;
  padding: 120px 0;
  border-top: 1px solid var(--line);
}
.section__head { max-width: 720px; margin-bottom: 64px; }
.section__title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 18px 0 0;
  text-wrap: balance;
}
.section__lead {
  color: var(--ink-soft);
  font-size: 18px;
  margin: 20px 0 0;
  max-width: 600px;
  text-wrap: pretty;
}

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background .35s var(--ease), border-color .35s var(--ease), backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.header.is-scrolled {
  background: rgba(7, 10, 18, 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark { width: 80px; height: 80px; }
.brand__name {
  font-family: var(--display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: 0.02em;
}
.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav__links { display: flex; gap: 34px; }
.nav__links a {
  font-size: 14.5px;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
  transition: color .2s var(--ease);
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--blue);
  transition: width .25s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { width: 100%; }

.nav__tools { display: flex; align-items: center; gap: 18px; }

.langswitch {
  display: flex;
  font-family: var(--mono);
  font-size: 12px;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  overflow: hidden;
}
.langswitch button {
  background: transparent;
  border: 0;
  color: var(--ink-mute);
  padding: 6px 10px;
  letter-spacing: 0.05em;
  transition: color .2s, background .2s;
}
.langswitch button.is-active {
  background: var(--blue);
  color: #fff;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--body);
  font-size: 14.5px;
  font-weight: 500;
  padding: 11px 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: transform .15s var(--ease), background .2s, border-color .2s, color .2s;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 28px -10px rgba(58, 110, 240, 0.7);
}
.btn--primary:hover { background: var(--blue-bright); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-2);
}
.btn--ghost:hover { border-color: var(--blue); color: var(--blue-bright); }
.btn--lg { padding: 15px 26px; font-size: 16px; }
.btn .arrow { transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

.nav__toggle { display: none; }

.hero {
  position: relative;
  padding: 188px 0 130px;
  overflow: hidden;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 70%);
          mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 70%);
  opacity: 0.6;
  pointer-events: none;
}
.hero__glow {
  position: absolute;
  top: -160px; right: -120px;
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(58,110,240,0.22), transparent 65%);
  filter: blur(20px);
  pointer-events: none;
}
.hero__mark {
  position: absolute;
  right: -90px; top: 90px;
  width: 560px;
  opacity: 0.05;
  pointer-events: none;
  animation: float 14s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50%     { transform: translateY(-18px) rotate(2deg); }
}
.hero__inner { position: relative; max-width: 880px; }

.status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  border: 1px solid var(--line-2);
  background: var(--surface);
  border-radius: 100px;
  padding: 7px 16px 7px 13px;
  margin-bottom: 30px;
}
.status .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #46d39a;
  box-shadow: 0 0 0 0 rgba(70,211,154,0.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(70,211,154,0.55); }
  70%  { box-shadow: 0 0 0 9px rgba(70,211,154,0); }
  100% { box-shadow: 0 0 0 0 rgba(70,211,154,0); }
}

.hero__title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(40px, 6.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 26px;
  text-wrap: balance;
}
.hero__title em {
  font-style: normal;
  color: var(--blue-bright);
}
.hero__lead {
  font-size: 20px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 600px;
  margin: 0 0 40px;
  text-wrap: pretty;
}
.hero__cta { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 52px;
  margin-top: 84px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
.stat__num {
  font-family: var(--display);
  font-weight: 600;
  font-size: 40px;
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat__num span { color: var(--blue-bright); }
.stat__label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 10px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}
.card {
  background: var(--surface);
  padding: 40px 36px 44px;
  transition: background .3s var(--ease);
  position: relative;
}
.card:hover { background: var(--surface-2); }
.card__idx {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--blue-bright);
  letter-spacing: 0.1em;
}
.card__icon {
  width: 46px; height: 46px;
  margin: 22px 0 26px;
  color: var(--blue-bright);
}
.card__icon svg { width: 100%; height: 100%; }
.card__title {
  font-family: var(--display);
  font-weight: 600;
  font-size: 23px;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}
.card__body { color: var(--ink-soft); font-size: 15.5px; margin: 0 0 22px; }
.card__list { list-style: none; padding: 0; margin: 0; }
.card__list li {
  font-size: 14px;
  color: var(--ink-soft);
  padding: 9px 0 9px 22px;
  position: relative;
  border-top: 1px solid var(--line);
}
.card__list li::before {
  content: "";
  position: absolute;
  left: 2px; top: 16px;
  width: 6px; height: 6px;
  border-right: 1.5px solid var(--blue);
  border-bottom: 1.5px solid var(--blue);
  transform: rotate(-45deg);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: 28px;
  border-top: 1px solid var(--line-2);
}
.step__no {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--blue-bright);
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}
.step__title {
  font-family: var(--display);
  font-weight: 600;
  font-size: 19px;
  margin: 0 0 12px;
}
.step__body { color: var(--ink-soft); font-size: 14.5px; margin: 0; }
.step::after {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: 36px; height: 2px;
  background: var(--blue);
}

.contact {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 72px;
  align-items: start;
}
.contact__aside .section__title { margin-top: 16px; }
.contact__chan {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.contact__chan-label {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.contact__chan a {
  font-family: var(--display);
  font-size: 22px;
  color: var(--ink);
  transition: color .2s;
  cursor: pointer;
}
.contact__chan-text {
  font-size: 15.5px;
  color: var(--ink-soft);
  max-width: 340px;
}
.contact__chan a:hover { color: var(--blue-bright); }

.form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 38px;
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 9px;
}
.field input,
.field textarea {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: 9px;
  color: var(--ink);
  font-family: var(--body);
  font-size: 15.5px;
  padding: 13px 15px;
  transition: border-color .2s, box-shadow .2s;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--ink-mute); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(58,110,240,0.16);
}
.field textarea { resize: vertical; min-height: 120px; }

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.form__error {
  margin: 14px 0 0;
  color: #f08398;
  font-size: 13.5px;
  font-family: var(--mono);
}

.field.is-invalid input,
.field.is-invalid textarea { border-color: #e0556a; }
.field__err {
  display: none;
  color: #f08398;
  font-size: 12.5px;
  margin-top: 7px;
  font-family: var(--mono);
}
.field.is-invalid .field__err { display: block; }

.form__submit { display: flex; align-items: center; gap: 18px; margin-top: 6px; }
.form__note { font-size: 13px; color: var(--ink-mute); }

.form__success {
  display: none;
  text-align: center;
  padding: 30px 10px;
}
.form__success.is-shown { display: block; }
.form.is-sent .form__fields { display: none; }
.form__success-mark {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: rgba(70,211,154,0.12);
  display: grid; place-items: center;
  color: #46d39a;
}
.form__success h3 { font-family: var(--display); font-size: 22px; margin: 0 0 8px; }
.form__success p { color: var(--ink-soft); margin: 0; }

.footer {
  border-top: 1px solid var(--line);
  padding: 56px 0 48px;
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.footer__brand { display: flex; align-items: center; gap: 12px; }
.footer__brand img { width: 65px; height: 65px; }
.footer__brand span { font-family: var(--display); font-weight: 600; font-size: 18px; }
.footer__meta {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}
.footer__meta a:hover { color: var(--blue-bright); }

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__mark, .status .dot { animation: none; }
}

@media (max-width: 920px) {
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 36px; }
  .contact { grid-template-columns: 1fr; gap: 44px; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .wrap { padding: 0 22px; }
  .section { padding: 84px 0; }
  .hero { padding: 142px 0 92px; }
  .nav__links { display: none; }
  .nav__toggle {
    display: inline-grid; place-items: center;
    width: 42px; height: 42px;
    background: var(--surface); border: 1px solid var(--line-2);
    border-radius: 8px; color: var(--ink);
  }
  .header .btn--primary { display: none; }
  .hero__stats { gap: 36px; }
  .steps { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .form { padding: 26px; }
}

.mobile-menu {
  position: fixed;
  inset: 74px 0 auto 0;
  z-index: 99;
  background: rgba(7,10,18,0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  display: none;
  flex-direction: column;
  padding: 16px 22px 28px;
  gap: 4px;
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a {
  padding: 14px 4px;
  font-size: 17px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
}
.mobile-menu .btn { margin-top: 18px; justify-content: center; }