:root {
  --bg: #040812;
  --bg-2: #071226;
  --card: rgba(10, 24, 48, 0.78);
  --card-2: rgba(4, 12, 25, 0.86);
  --text: #f5f8ff;
  --muted: #aab7cc;
  --blue: #0587ff;
  --blue-2: #00c8ff;
  --line: rgba(0, 148, 255, 0.35);
  --border: rgba(118, 190, 255, 0.28);
  --shadow: 0 0 36px rgba(0, 119, 255, 0.26);
  --radius: 24px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 12%, rgba(0, 124, 255, 0.22), transparent 34%),
    radial-gradient(circle at 18% 28%, rgba(0, 205, 255, 0.08), transparent 28%),
    linear-gradient(180deg, #02050b 0%, var(--bg) 46%, #02050b 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image:
    linear-gradient(rgba(0, 132, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 132, 255, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at center, black, transparent 82%);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(2, 6, 15, 0.74);
  border-bottom: 1px solid rgba(79, 158, 255, 0.14);
}

.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 178px;
}

.brand-mark {
      width: 48px;
      height: 48px;
      border: 1px solid var(--line);
      border-radius: 14px;
      position: relative;
      box-shadow: var(--shadow);
      background: linear-gradient(145deg, rgba(0, 148, 255, 0.26), rgba(255,255,255,0.04));
      overflow: hidden;
    }

    .brand-mark::before,
    .brand-mark::after {
      content: "";
      position: absolute;
      left: 8px;
      right: 8px;
      height: 2px;
      background: #fff;
      box-shadow: 0 12px 0 var(--blue), 0 24px 0 #fff;
      top: 10px;
    }

    .brand-mark::after {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      left: 27px;
      top: 7px;
      box-shadow: -12px 12px 0 var(--blue), 5px 24px 0 #fff;
      background: var(--blue-2);
    }

    .brand-name {
      line-height: 0.86;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      font-weight: 900;
      font-size: 25px;
    }

    .brand-name span { color: var(--blue); display: block; }

.menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.menu a:hover { color: #fff; }

.header-actions,
.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.phone {
  color: #fff;
  font-weight: 900;
  white-space: nowrap;
  letter-spacing: 0.4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid rgba(116, 195, 255, 0.38);
  color: #fff;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  background: linear-gradient(90deg, #005deb, #00a7ff);
  box-shadow: 0 0 24px rgba(0, 132, 255, 0.35);
  transition: transform .2s ease, box-shadow .2s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(0, 155, 255, 0.56);
}

.btn.secondary { background: rgba(255,255,255,0.04); }

.mobile-menu-button {
  display: none;
  width: 46px;
  height: 46px;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(0, 132, 255, .08);
  color: #fff;
  cursor: pointer;
}

.mobile-menu-button span:not(.sr-only) {
  display: block;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  border-radius: 99px;
}

.hero {
  position: relative;
  padding: 82px 0 74px;
  min-height: 720px;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -110px;
  bottom: 16px;
  width: min(58vw, 760px);
  aspect-ratio: 1.35;
  border-radius: 50%;
  border: 2px solid rgba(0, 161, 255, 0.7);
  box-shadow: 0 0 44px rgba(0, 132, 255, 0.7), inset 0 0 28px rgba(0, 132, 255, 0.28);
  transform: rotate(-8deg);
  opacity: 0.82;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.03fr 0.97fr;
  gap: 36px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(0, 115, 255, 0.08);
  color: #d6e9ff;
  font-size: 14px;
  font-weight: 800;
}

.pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--blue-2);
  box-shadow: 0 0 0 8px rgba(0, 200, 255, 0.14), 0 0 24px var(--blue-2);
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(30px, 4.6vw, 58px);
  line-height: 0.94;
  text-transform: uppercase;
  letter-spacing: -2px;
  font-weight: 950;
}

.gradient-text {
  display: block;
  color: var(--blue);
  background: linear-gradient(180deg, #03d6ff, #0357ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  max-width: 620px;
  margin: 0 0 28px;
  color: #d5dcea;
  font-size: 22px;
  line-height: 1.45;
}

.hero-bullets {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 30px 0;
}

.mini-card {
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 72px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(92, 178, 255, 0.25);
  background: linear-gradient(145deg, rgba(10, 23, 45, 0.86), rgba(4, 10, 22, 0.58));
}

.icon {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  border: 1px solid rgba(0, 166, 255, 0.42);
  color: var(--blue-2);
  background: rgba(0, 136, 255, 0.08);
  font-size: 24px;
  box-shadow: inset 0 0 18px rgba(0, 136, 255, 0.12);
}

.mini-card strong {
  display: block;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.mini-card small {
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  position: relative;
  min-height: 560px;
  display: grid;
  place-items: center;
}

.car-card {
  width: min(100%, 560px);
  min-height: 510px;
  border-radius: 34px;
  border: 1px solid rgba(84, 169, 255, 0.22);
  background:
    linear-gradient(
      160deg,
      rgba(0, 0, 0, 0.28),
      rgba(0, 30, 70, 0.08) 45%,
      rgba(0, 0, 0, 0.2)
    ),
    url("../images/cyberparts.jpg") center center / cover no-repeat;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.46), var(--shadow);
  position: relative;
  overflow: hidden;
  padding: 34px;
}

.car-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 0 24%, rgba(0, 160, 255, 0.18) 24% 25%, transparent 25% 48%, rgba(0, 160, 255, 0.10) 48% 49%, transparent 49%),
    radial-gradient(circle at 50% 78%, rgba(0, 104, 255, 0.28), transparent 34%);
  pointer-events: none;
}

.visual-label {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.28);
  color: #dceeff;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

section {
  padding: 82px 0;
  position: relative;
}

.section-head {
  max-width: 790px;
  margin-bottom: 34px;
}

.kicker {
  color: var(--blue-2);
  text-transform: uppercase;
  font-weight: 950;
  letter-spacing: 1.4px;
  font-size: 14px;
}

h2 {
  margin: 10px 0 14px;
  font-size: clamp(32px, 4.2vw, 56px);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: -1px;
}

.section-head p,
.contact-card p {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.55;
  margin: 0;
}

.categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.category {
  min-height: 265px;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid rgba(113, 194, 255, 0.22);
  background: linear-gradient(160deg, rgba(13, 29, 57, 0.92), rgba(4, 9, 19, 0.74));
  box-shadow: 0 18px 50px rgba(0,0,0,0.25);
  position: relative;
  overflow: hidden;
}

.category::after {
  content: "";
  position: absolute;
  right: -48px;
  bottom: -48px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 2px solid rgba(0, 142, 255, 0.35);
  box-shadow: 0 0 24px rgba(0, 142, 255, 0.35);
}

.category .icon { margin-bottom: 24px; }
.category h3 {
  margin: 0 0 12px;
  font-size: 25px;
  line-height: 1.08;
  text-transform: uppercase;
}
.category p {
  color: var(--muted);
  margin: 0 0 16px;
  line-height: 1.5;
}

.tag {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 99px;
  border: 1px solid rgba(0, 166, 255, 0.32);
  color: #dff4ff;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: step;
}

.step {
  counter-increment: step;
  padding: 24px;
  min-height: 210px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border);
  position: relative;
}

.step::before {
  content: "0" counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 20px;
  border-radius: 16px;
  background: rgba(0, 145, 255, 0.14);
  border: 1px solid rgba(0, 145, 255, 0.4);
  color: var(--blue-2);
  font-weight: 950;
  font-size: 20px;
}

.step h3 { margin: 0 0 10px; font-size: 22px; }
.step p { margin: 0; color: var(--muted); line-height: 1.5; }

.advantages-wrap {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 24px;
  align-items: stretch;
}

.years {
  padding: 34px;
  border-radius: 34px;
  border: 1px solid rgba(0, 145, 255, 0.32);
  background:
    radial-gradient(circle at 50% 35%, rgba(0, 140, 255, 0.24), transparent 35%),
    linear-gradient(160deg, rgba(8, 25, 52, 0.92), rgba(2, 6, 13, 0.92));
  box-shadow: var(--shadow);
  min-height: 410px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.shield-big {
  width: 118px;
  height: 134px;
  display: grid;
  place-items: center;
  font-size: 64px;
  font-weight: 950;
  color: #fff;
  background: linear-gradient(180deg, rgba(0, 160, 255, .95), rgba(0, 55, 160, .9));
  clip-path: polygon(50% 0, 92% 16%, 86% 70%, 50% 100%, 14% 70%, 8% 16%);
  box-shadow: 0 0 32px rgba(0, 144, 255, .5);
}

.years h3 {
  margin: 22px 0 12px;
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: .96;
  text-transform: uppercase;
}

.years p {
  color: var(--muted);
  font-size: 20px;
  line-height: 1.45;
  margin: 0 0 26px;
}

.advantages {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.advantage {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(13, 29, 57, .88), rgba(3, 8, 17, .74));
}

.advantage h3 {
  margin: 14px 0 8px;
  font-size: 22px;
  text-transform: uppercase;
}

.advantage p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.order-block {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
  padding: 34px;
  border-radius: 36px;
  border: 1px solid rgba(80, 179, 255, .28);
  background:
    radial-gradient(circle at 78% 22%, rgba(0, 138, 255, .22), transparent 34%),
    linear-gradient(145deg, rgba(12, 30, 60, .9), rgba(2, 7, 16, .92));
  box-shadow: 0 24px 80px rgba(0,0,0,.38), var(--shadow);
}

.contact-card {
  padding: 24px;
  border-radius: 28px;
  border: 1px solid rgba(103, 191, 255, .23);
  background: rgba(0,0,0,.20);
}

.contact-card h2 { font-size: clamp(30px, 4vw, 48px); }
.contact-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.contact-row {
  display: flex;
  gap: 13px;
  align-items: center;
  color: #dce7f7;
}

form {
  display: grid;
  gap: 14px;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
  color: #d9e9fb;
  font-size: 14px;
  font-weight: 800;
}

input, select, textarea {
  width: 100%;
  min-height: 52px;
  border-radius: 16px;
  border: 1px solid rgba(112, 190, 255, .28);
  background: rgba(2, 8, 18, .72);
  color: #fff;
  padding: 13px 15px;
  outline: none;
  font: inherit;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--blue-2);
  box-shadow: 0 0 0 4px rgba(0, 174, 255, .12);
}

.form-note,
.form-status {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.form-status.is-success {
  color: #baf7d2;
}

.form-status.is-error {
  color: #ffd0d0;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

details {
  border-radius: 22px;
  border: 1px solid rgba(113, 194, 255, 0.22);
  background: rgba(8, 22, 44, 0.72);
  padding: 20px;
}

summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 950;
}

details p {
  color: var(--muted);
  line-height: 1.55;
  margin: 14px 0 0;
}

footer {
  padding: 38px 0;
  border-top: 1px solid rgba(86, 173, 255, 0.14);
  background: rgba(0,0,0,0.26);
  color: var(--muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 1020px) {
  .menu {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 78px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: rgba(2, 6, 15, .96);
  }

  .menu.is-open { display: flex; }
  .mobile-menu-button { display: block; }
  .hero-grid, .advantages-wrap, .order-block { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 54px; }
  .hero-visual { min-height: 470px; }
  .categories, .steps { grid-template-columns: repeat(2, 1fr); }
  .hero::after { width: 860px; right: -280px; }
}

@media (max-width: 700px) {
  .container { width: min(100% - 22px, var(--max)); }
  .topbar { position: relative; }
  .nav { min-height: 72px; }
  .brand { min-width: 150px; }
  .brand-logo { width: 150px; }
  .header-actions .phone { display: none; }
  .header-actions .btn { display: none; }
  .btn { min-height: 46px; padding: 0 16px; font-size: 13px; }
  .hero { padding: 38px 0 54px; }
  .hero-bullets, .categories, .steps, .advantages, .faq-grid, .field-grid { grid-template-columns: 1fr; }
  .hero-lead { font-size: 18px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .car-card { min-height: 430px; padding: 22px; }
  section { padding: 58px 0; }
  .order-block { padding: 18px; border-radius: 28px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 700px) {
  .nav {
    justify-content: flex-start;
    gap: 10px;
  }

  .header-actions {
    display: none;
  }

  .mobile-menu-button {
    display: block;
    margin-left: auto;
    margin-right: 0;
    flex: 0 0 46px;
  }

  .menu {
    left: 11px;
    right: 11px;
    top: 72px;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-content {
    display: contents;
  }

  .hero-content .eyebrow {
    order: 1;
  }

  .hero-content h1 {
    order: 2;
  }

  .hero-content .hero-lead {
    order: 3;
  }

  .hero-visual {
    order: 4;
    min-height: auto;
    margin: 10px 0 18px;
  }

  .car-card {
    width: 100%;
    min-height: 360px;
    border-radius: 26px;
    padding: 18px;
  }

  .visual-label {
    font-size: 12px;
    padding: 9px 12px;
  }

  .hero-bullets {
    order: 5;
    margin-top: 0;
  }

  .hero-actions {
    order: 6;
  }
}