:root {
  color-scheme: dark;
  --bg: #07090d;
  --bg-soft: #0d1118;
  --panel: rgba(255, 255, 255, .045);
  --panel-strong: rgba(255, 255, 255, .075);
  --text: #f4f7fb;
  --muted: #9aa7b7;
  --muted-strong: #c9d3df;
  --line: rgba(255, 255, 255, .12);
  --line-strong: rgba(111, 226, 255, .32);
  --accent: #35d9ff;
  --accent-strong: #8beaff;
  --accent-soft: rgba(53, 217, 255, .11);
  --ig-blue: #18a7ff;
  --ig-cyan: #32e6ff;
  --ig-navy: #071827;
  --ig-soft: rgba(24, 167, 255, .14);
  --ig-line: rgba(50, 230, 255, .34);
  --shadow: 0 24px 80px rgba(0, 0, 0, .38);
  --radius: 8px;
  --max: 1160px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 72% 8%, rgba(53, 217, 255, .12), transparent 28rem),
    linear-gradient(180deg, #07090d 0%, #090d13 46%, #07090d 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, #000, transparent 72%);
  opacity: .32;
}

a { color: inherit; }
img { display: block; max-width: 100%; }
p, h1, h2, h3, dl, dd { margin: 0; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.shell {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 100svh;
  padding: 18px 0 72px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(8, 12, 18, .82);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .06) inset, 0 20px 50px rgba(0, 0, 0, .22);
}

.brand,
.nav-links,
.hero-actions,
.contact-actions,
.footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  min-height: 44px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
}

.nav-links {
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .035);
}

.nav-links a,
.nav-cta {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  padding: 0 13px;
  color: var(--muted-strong);
  text-decoration: none;
  font-size: .92rem;
  font-weight: 650;
  transition: color .22s ease, background .22s ease, border-color .22s ease, transform .22s ease;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, .07);
}

.nav-cta {
  border: 1px solid var(--line-strong);
  color: #061017;
  background: linear-gradient(180deg, var(--accent-strong), var(--accent));
}

.nav-cta:hover,
.button:hover,
.text-link:hover {
  transform: translateY(-2px);
}

.hero {
  min-height: calc(100svh - 86px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, .72fr);
  gap: clamp(34px, 6vw, 76px);
  align-items: center;
  padding: 76px 0 18px;
}

.hero-copy {
  display: grid;
  gap: 22px;
}

.eyebrow {
  color: var(--accent-strong);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 880px;
  font-size: clamp(4.2rem, 10vw, 8.8rem);
  font-weight: 820;
  line-height: .86;
  letter-spacing: 0;
}

h2 {
  max-width: 920px;
  font-size: clamp(2rem, 4.6vw, 4.7rem);
  font-weight: 760;
  line-height: .98;
  letter-spacing: 0;
}

h3 {
  font-size: 1.18rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 820px;
  color: var(--text);
  font-size: clamp(1.35rem, 3vw, 2.45rem);
  line-height: 1.12;
  font-weight: 650;
}

.lead {
  max-width: 700px;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
}

.hero-actions,
.contact-actions {
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0 18px;
  text-decoration: none;
  font-weight: 750;
  cursor: pointer;
  transition: transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease;
}

.button.primary {
  color: #041017;
  background: linear-gradient(180deg, var(--accent-strong), var(--accent));
  box-shadow: 0 16px 44px rgba(53, 217, 255, .18);
}

.button.secondary {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, .045);
}

.system-panel,
.card,
.product-band,
.contact-form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  box-shadow: 0 1px 0 rgba(255, 255, 255, .06) inset;
}

.system-panel {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 18px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.system-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 72% 16%, rgba(53, 217, 255, .18), transparent 18rem);
  pointer-events: none;
}

.system-panel > * {
  position: relative;
  z-index: 1;
}

.panel-top,
.panel-list div,
.project-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.panel-top {
  color: var(--muted-strong);
  font-size: .88rem;
  font-weight: 700;
}

.live-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 7px rgba(53, 217, 255, .12);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  min-height: 250px;
}

.signal-grid span {
  min-height: 70px;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(53, 217, 255, .16), transparent),
    rgba(255, 255, 255, .035);
}

.signal-grid span:nth-child(2n) { opacity: .62; }
.signal-grid span:nth-child(5),
.signal-grid span:nth-child(9) { background: rgba(255, 255, 255, .055); }

.panel-metric {
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(53, 217, 255, .08);
}

.panel-metric span,
.panel-list span,
.project-title span,
dt,
.card-index,
.pill {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.panel-metric strong {
  font-size: 1.55rem;
  line-height: 1.08;
}

.panel-list {
  display: grid;
  gap: 10px;
}

.panel-list div {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.panel-list div:last-child { border-bottom: 0; }
.panel-list strong { color: var(--accent-strong); }

.section {
  padding: clamp(76px, 10vw, 132px) 0;
}

.section-head {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
  max-width: 760px;
}

.section-head.split {
  grid-template-columns: minmax(0, 1fr) minmax(280px, .48fr);
  gap: clamp(24px, 6vw, 72px);
  align-items: end;
  max-width: none;
}

.section-head.split > p,
.about > p,
.product-band > p,
.contact-copy > p,
.card p,
dd {
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 24px;
  transition: transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, .085), rgba(255, 255, 255, .045));
  box-shadow: 0 24px 70px rgba(0, 0, 0, .24);
}

.service-card {
  min-height: 178px;
  display: grid;
  align-content: start;
  gap: 18px;
}

.service-card h3 {
  margin-bottom: 8px;
  font-size: 1.28rem;
}

.card-index {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.project-card {
  display: grid;
  gap: 22px;
  align-items: start;
}

.project-card-featured {
  position: relative;
  overflow: hidden;
  grid-column: 1 / -1;
  gap: 18px;
  border-color: var(--ig-line);
  background:
    radial-gradient(circle at 12% 0%, rgba(50, 230, 255, .2), transparent 22rem),
    linear-gradient(135deg, rgba(8, 28, 44, .92), rgba(255, 255, 255, .05));
  box-shadow: 0 1px 0 rgba(255, 255, 255, .08) inset, 0 28px 90px rgba(0, 0, 0, .28);
}

.project-card-featured::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(50, 230, 255, .08) 1px, transparent 1px),
    linear-gradient(rgba(50, 230, 255, .07) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(115deg, #000, transparent 58%);
  opacity: .5;
}

.project-card-featured > * {
  position: relative;
  z-index: 1;
}

.project-title,
.infraguard-header {
  display: grid;
  align-content: start;
  justify-content: stretch;
}

.project-title strong {
  margin-top: 8px;
  max-width: 520px;
  font-size: 1.32rem;
  line-height: 1.26;
}

.project-brand {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 15px;
  align-items: center;
}

.project-brand img {
  width: 54px;
  height: 54px;
  border: 1px solid rgba(50, 230, 255, .28);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(50, 230, 255, .12), rgba(24, 167, 255, .06));
  box-shadow: 0 18px 42px rgba(24, 167, 255, .18);
}

.infraguard-header {
  grid-template-columns: minmax(0, 1fr) minmax(220px, auto);
  gap: 24px;
  align-items: center;
}

.infraguard-case .project-brand span,
.infraguard-case dt {
  color: var(--ig-cyan);
}

.infraguard-case .project-brand strong {
  display: block;
  margin-top: 8px;
  max-width: 620px;
  font-size: clamp(1.35rem, 2.2vw, 1.78rem);
  line-height: 1.16;
}

.case-tags,
.case-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.case-tags span {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(50, 230, 255, .26);
  border-radius: var(--radius);
  padding: 0 10px;
  color: #d7fbff;
  background: rgba(24, 167, 255, .11);
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.infraguard-case dl {
  max-width: 920px;
}

.infraguard-case .infraguard-link {
  justify-self: start;
}

.case-proof {
  grid-column: 1 / -1;
  padding-top: 2px;
}

.case-proof div {
  flex: 1 1 170px;
  min-height: 82px;
  display: grid;
  align-content: center;
  gap: 6px;
  border: 1px solid rgba(50, 230, 255, .22);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(3, 15, 25, .58);
}

.case-proof span {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.case-proof strong {
  color: var(--text);
  font-size: .98rem;
  line-height: 1.2;
}

dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

dl div {
  min-height: 74px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: rgba(255, 255, 255, .03);
}

dt { margin-bottom: 5px; }
dd { font-size: .92rem; }

.text-link,
.pill {
  height: 42px;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: max-content;
  border-radius: var(--radius);
  padding: 0 12px;
  text-decoration: none;
  white-space: nowrap;
}

.text-link {
  color: var(--accent-strong);
  border: 1px solid var(--line-strong);
  background: var(--accent-soft);
  font-weight: 760;
  transition: transform .22s ease, background .22s ease;
}

.infraguard-link {
  color: #031018;
  border-color: rgba(139, 234, 255, .62);
  background: linear-gradient(180deg, var(--ig-cyan), var(--ig-blue));
  box-shadow: 0 18px 50px rgba(24, 167, 255, .18);
}

.pill {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .045);
}

.product-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, .42fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: end;
  padding: clamp(26px, 5vw, 48px);
}

.product-band h2 {
  font-size: clamp(1.8rem, 3.6vw, 3.5rem);
}

.about {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(300px, .52fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
}

.about > p,
.contact-copy > p,
.product-band > p {
  font-size: 1.05rem;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(340px, .58fr);
  gap: clamp(28px, 6vw, 78px);
  align-items: start;
}

.contact-copy {
  display: grid;
  gap: 18px;
}

.contact-actions a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 12px;
  color: var(--muted-strong);
  text-decoration: none;
  font-weight: 720;
  transition: color .22s ease, border-color .22s ease, background .22s ease;
}

.contact-actions a:hover {
  color: var(--text);
  border-color: var(--line-strong);
  background: var(--accent-soft);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 22px;
}

label {
  display: grid;
  gap: 8px;
}

label span {
  color: var(--muted-strong);
  font-size: .9rem;
  font-weight: 720;
}

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 11px 12px;
  color: var(--text);
  background: rgba(3, 7, 12, .72);
  font: inherit;
}

textarea {
  resize: vertical;
  min-height: 130px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  outline: none;
}

.footer {
  justify-content: space-between;
  gap: 18px;
  padding: 28px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer .brand {
  color: var(--text);
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .55s ease, transform .55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

@media (max-width: 980px) {
  .hero,
  .section-head.split,
  .product-band,
  .about,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 54px;
  }

  .system-panel {
    max-width: 620px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
  }

  .project-grid,
  .project-card {
    grid-template-columns: 1fr;
  }

  dl {
    grid-template-columns: 1fr;
  }

  .infraguard-header,
  .infraguard-case dl {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 28px, var(--max));
  }

  .site-header {
    padding-top: 12px;
  }

  .nav {
    align-items: stretch;
    flex-wrap: wrap;
  }

  .brand {
    flex: 1 1 auto;
  }

  .nav-cta {
    flex: 0 0 auto;
  }

  .nav-links {
    order: 3;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .nav-links a {
    padding-inline: 6px;
    font-size: .84rem;
  }

  h1 {
    font-size: clamp(3.25rem, 18vw, 5.6rem);
  }

  h2 {
    font-size: clamp(1.9rem, 10vw, 3.2rem);
  }

  .hero {
    min-height: auto;
    padding: 48px 0 24px;
  }

  .signal-grid {
    min-height: 180px;
    gap: 8px;
  }

  .signal-grid span {
    min-height: 52px;
  }

  .section {
    padding: 72px 0;
  }

  .card,
  .contact-form,
  .system-panel {
    padding: 18px;
  }

  .project-brand {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
  }

  .project-brand img {
    width: 44px;
    height: 44px;
  }

  .infraguard-case .project-brand {
    grid-template-columns: 38px minmax(0, 1fr);
    align-items: start;
  }

  .infraguard-case .project-brand img {
    width: 38px;
    height: 38px;
  }

  .infraguard-case .project-brand strong {
    margin-top: 5px;
    font-size: 1.2rem;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 430px) {
  .nav-cta {
    width: 100%;
  }

  .nav-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .button,
  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .panel-top,
  .panel-list div {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .case-proof div,
  .text-link {
    width: 100%;
  }
}