:root {
  --bg: #06080c;
  --bg-elev: #0c1118;
  --ink: #e8eef6;
  --muted: #8b97a8;
  --steel: #c5d0dc;
  --edge: #2fffd0;
  --edge-dim: rgba(47, 255, 208, 0.18);
  --line: rgba(197, 208, 220, 0.14);
  --font-display: "Syne", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --pad: clamp(1.25rem, 4vw, 3rem);
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.grid-bg {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 70% 10%, rgba(47, 255, 208, 0.08), transparent 55%),
    radial-gradient(ellipse 60% 40% at 10% 80%, rgba(80, 120, 255, 0.06), transparent 50%),
    linear-gradient(rgba(197, 208, 220, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(197, 208, 220, 0.04) 1px, transparent 1px);
  background-size: auto, auto, 64px 64px, 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 85%);
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

.site-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem var(--pad);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.logo-mark {
  width: 0.85rem;
  height: 1.35rem;
  background: linear-gradient(165deg, #fff 0%, var(--edge) 45%, #0a3d36 100%);
  clip-path: polygon(50% 0%, 100% 100%, 50% 82%, 0% 100%);
  box-shadow: 0 0 18px var(--edge-dim);
}

.nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
  font-size: 0.92rem;
  color: var(--muted);
}

.nav a:hover {
  color: var(--ink);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--line);
  background: rgba(12, 17, 24, 0.7);
  color: var(--muted);
  padding: 0.4rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s;
}

.lang-toggle:hover {
  border-color: var(--edge);
  color: var(--ink);
}

.lang-active {
  color: var(--edge);
}

.lang-sep {
  opacity: 0.4;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  min-height: calc(100vh - 5rem);
  padding: 2rem var(--pad) 4rem;
}

.eyebrow {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--edge);
}

.brand-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3rem, 9vw, 5.6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, #fff 20%, var(--steel) 55%, var(--edge) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: titleIn 0.9s ease both;
}

.hero-lead {
  margin: 1.35rem 0 0;
  max-width: 28rem;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: var(--muted);
  animation: fadeUp 0.8s 0.15s ease both;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
  animation: fadeUp 0.8s 0.28s ease both;
}

.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0 1.35rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: transform 0.2s, background 0.2s, border-color 0.2s, color 0.2s;
}

.btn-primary {
  background: var(--edge);
  color: #041612;
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.btn-ghost {
  border: 1px solid var(--line);
  color: var(--steel);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--edge);
  color: var(--ink);
}

.hero-visual {
  position: relative;
  min-height: clamp(280px, 48vh, 460px);
  animation: fadeUp 1s 0.2s ease both;
}

.blade-plane {
  position: absolute;
  inset: 6% 4% 8% 8%;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(47, 255, 208, 0.07), transparent 40%),
    linear-gradient(var(--bg-elev), #0a1017);
  overflow: hidden;
  transform: perspective(900px) rotateY(-8deg) rotateX(4deg);
  transform-origin: left center;
}

.blade-plane::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(47, 255, 208, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 255, 208, 0.08) 1px, transparent 1px);
  background-size: 36px 36px;
  animation: gridDrift 18s linear infinite;
  opacity: 0.7;
}

.blade-scan {
  position: absolute;
  left: -10%;
  right: -10%;
  height: 28%;
  top: -30%;
  background: linear-gradient(180deg, transparent, rgba(47, 255, 208, 0.12), transparent);
  animation: scan 5.5s ease-in-out infinite;
}

.blade-edge {
  position: absolute;
  right: 12%;
  top: 8%;
  bottom: 8%;
  width: 3px;
  background: linear-gradient(180deg, transparent, var(--edge), transparent);
  box-shadow: 0 0 24px var(--edge);
  clip-path: polygon(0 0, 100% 8%, 100% 92%, 0 100%);
  animation: edgePulse 3.2s ease-in-out infinite;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
}

.orb-a {
  width: 140px;
  height: 140px;
  left: 18%;
  top: 28%;
  background: radial-gradient(circle, rgba(47, 255, 208, 0.35), transparent 65%);
  animation: float 7s ease-in-out infinite;
}

.orb-b {
  width: 90px;
  height: 90px;
  right: 22%;
  bottom: 22%;
  background: radial-gradient(circle, rgba(140, 170, 255, 0.28), transparent 70%);
  animation: float 9s 1s ease-in-out infinite reverse;
}

.frame-label {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.services,
.contact {
  max-width: var(--max);
  margin: 0 auto;
  padding: 5rem var(--pad);
}

.section-head {
  margin-bottom: 2.5rem;
  max-width: 36rem;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.service-list li {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s, padding-left 0.25s;
}

.service-list li:hover {
  background: linear-gradient(90deg, var(--edge-dim), transparent 55%);
  padding-left: 0.5rem;
}

.svc-code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--edge);
  padding-top: 0.25rem;
}

.service-list h3 {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.service-list p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  max-width: 42rem;
}

.contact-mail {
  display: inline-flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  min-width: min(100%, 28rem);
  transition: color 0.2s, border-color 0.2s;
}

.contact-mail:hover {
  border-color: var(--edge);
}

.mail-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.mail-addr {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.5vw, 2rem);
  font-weight: 700;
  color: var(--edge);
  word-break: break-all;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem var(--pad) 3rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}

.footer-domain {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

@keyframes titleIn {
  from {
    opacity: 0;
    transform: translateY(18px) skewX(-2deg);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes scan {
  0%,
  100% {
    top: -30%;
  }
  50% {
    top: 90%;
  }
}

@keyframes gridDrift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(36px, 36px, 0);
  }
}

@keyframes edgePulse {
  0%,
  100% {
    opacity: 0.55;
  }
  50% {
    opacity: 1;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 1.5rem;
  }

  .hero-visual {
    order: -1;
    min-height: 240px;
  }

  .blade-plane {
    inset: 0;
    transform: none;
  }

  .nav {
    display: none;
  }

  .service-list li {
    grid-template-columns: 3rem 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}