:root {
  --bg: #070d12;
  --bg-2: #0d1821;
  --panel: rgba(12, 28, 38, 0.72);
  --ink: #e8f2f6;
  --muted: #8aa0ad;
  --brand: #3de6c4;
  --brand-dim: #1a8f7a;
  --accent: #f0c75e;
  --line: rgba(61, 230, 196, 0.18);
  --danger: #ff7b7b;
  --ok: #3de6c4;
  --nav-h: 4.5rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Orbitron", "Cairo", sans-serif;
  --font-body: "Sora", "Cairo", sans-serif;
  --font-mono: "Share Tech Mono", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.02rem;
  line-height: 1.65;
  background: var(--bg);
  overflow-x: hidden;
}

body.is-ar { font-family: "Cairo", "Sora", sans-serif; }
body.is-ar .brand,
body.is-ar .brand-mark,
body.is-ar h1,
body.is-ar h2,
body.is-ar h3,
body.is-ar .eyebrow { font-family: "Cairo", "Orbitron", sans-serif; }

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

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(61, 230, 196, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 230, 196, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 60% 45% at 15% 10%, rgba(61, 230, 196, 0.16), transparent 55%),
    radial-gradient(ellipse 50% 40% at 90% 0%, rgba(240, 199, 94, 0.1), transparent 50%),
    linear-gradient(180deg, var(--bg-2), var(--bg));
  animation: ambience 16s var(--ease) infinite alternate;
}

@keyframes ambience {
  from { filter: saturate(1); }
  to { filter: saturate(1.15); }
}

.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  height: var(--nav-h);
  padding: 0 clamp(1rem, 3vw, 2.5rem);
  backdrop-filter: blur(16px);
  background: rgba(7, 13, 18, 0.78);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  color: var(--brand);
  justify-self: start;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  justify-content: center;
  flex-wrap: wrap;
}

.nav-links a {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
  transition: color 0.25s var(--ease);
}

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

.lang {
  justify-self: end;
  display: inline-flex;
  border: 1px solid var(--line);
  background: rgba(61, 230, 196, 0.04);
  padding: 0.18rem;
}

.lang-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  min-width: 2.35rem;
  height: 1.9rem;
  cursor: pointer;
}

.lang-btn.is-active {
  background: var(--brand);
  color: #041016;
}

.eyebrow {
  margin: 0 0 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero {
  min-height: calc(100vh - var(--nav-h));
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(2rem, 6vh, 3.5rem) clamp(1rem, 3vw, 2.5rem) 4rem;
}

.brand-mark {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6.5vw, 4.6rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--brand);
  line-height: 1;
  text-shadow: 0 0 40px rgba(61, 230, 196, 0.25);
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.02em;
  max-width: 18ch;
}

.hero-lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: 40ch;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.65rem 1.2rem;
  font-size: 0.92rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--brand);
  color: #041016;
}

.btn-primary:hover { background: #6ff0d4; }

.btn-ghost {
  border-color: var(--line);
  background: rgba(61, 230, 196, 0.05);
  color: var(--ink);
}

.hero-specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.hero-specs li {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  background: var(--panel);
}

.hero-specs strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--brand);
  margin-bottom: 0.25rem;
}

.hero-specs span {
  font-size: 0.8rem;
  color: var(--muted);
}

.hero-visual { min-height: clamp(20rem, 52vh, 30rem); }

.hud {
  position: relative;
  height: 100%;
  min-height: inherit;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(12, 28, 38, 0.9), rgba(7, 13, 18, 0.95));
  overflow: hidden;
}

.hud-frame {
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(61, 230, 196, 0.12);
  pointer-events: none;
}

.chip-art {
  width: 100%;
  height: calc(100% - 3.5rem);
  animation: floaty 6s var(--ease) infinite;
}

.scan { animation: spin 28s linear infinite; transform-origin: 320px 320px; }

.hud-meta {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes spin { to { transform: rotate(360deg); } }

.platforms,
.solutions,
.process,
.inquiry {
  padding: clamp(3.5rem, 9vh, 6rem) clamp(1rem, 3vw, 2.5rem);
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2rem;
}

.section-head h2,
.inquiry-copy h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.2;
}

.section-head p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
}

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

.platform {
  padding: 1.35rem 1.25rem 1.4rem;
  border: 1px solid var(--line);
  background: var(--panel);
}

.platform .tag {
  display: inline-block;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.platform h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}

.platform > p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.platform ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.platform li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1rem;
  border-top: 1px solid rgba(61, 230, 196, 0.1);
  color: var(--ink);
  font-size: 0.9rem;
}

.platform li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95rem;
  width: 0.4rem;
  height: 0.4rem;
  background: var(--brand);
}

.solution-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.solution-list > div {
  padding: 1.4rem 1.3rem;
  background: var(--bg-2);
}

.solution-list h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.03em;
}

.solution-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.steps li {
  padding: 1.2rem;
  border: 1px solid var(--line);
  background: var(--panel);
}

.steps span {
  display: block;
  margin-bottom: 0.8rem;
  font-family: var(--font-mono);
  color: var(--brand);
  letter-spacing: 0.08em;
}

.steps h3 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  font-family: var(--font-display);
}

.steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.inquiry {
  border-top: 1px solid var(--line);
}

.inquiry-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.inquiry-notes {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.inquiry-notes li {
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(61, 230, 196, 0.1);
  color: var(--muted);
  font-size: 0.92rem;
}

.inquiry-form {
  padding: 1.35rem;
  border: 1px solid var(--line);
  background: var(--panel);
  display: grid;
  gap: 0.9rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.inquiry-form label {
  display: grid;
  gap: 0.35rem;
}

.inquiry-form label span {
  font-size: 0.82rem;
  color: var(--muted);
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(7, 13, 18, 0.75);
  color: var(--ink);
  font: inherit;
  padding: 0.7rem 0.8rem;
  outline: none;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--brand);
}

.inquiry-form textarea { resize: vertical; min-height: 7rem; }

.form-status {
  margin: 0;
  min-height: 1.3rem;
  font-size: 0.9rem;
}

.form-status.is-ok { color: var(--ok); }
.form-status.is-err { color: var(--danger); }

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1.4rem clamp(1rem, 3vw, 2.5rem) 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.footer span:first-child {
  font-family: var(--font-display);
  color: var(--brand);
  letter-spacing: 0.06em;
}

body.is-switching main { animation: fade 0.35s var(--ease); }
@keyframes fade { from { opacity: 0.5; } to { opacity: 1; } }

@media (max-width: 980px) {
  .hero,
  .platform-grid,
  .steps,
  .inquiry-layout { grid-template-columns: 1fr; }
  .solution-list { grid-template-columns: 1fr; }
  .hero-visual { order: -1; min-height: 18rem; }
  .hero h1 { max-width: none; }
  .hero-specs { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav { grid-template-columns: auto 1fr auto; }
  .nav-links { display: none; }
  .field-row { grid-template-columns: 1fr; }
}

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