:root {
  --bg: #060b12;
  --ink: #edf7fb;
  --muted: #91a4b0;
  --line: rgba(105, 232, 255, 0.16);
  --surface: #0d1722;
  --surface-soft: #101d2a;
  --surface-strong: #06111b;
  --cyan: #41d9ff;
  --green: #28d59a;
  --amber: #f4b84c;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 74% 8%, rgba(65, 217, 255, 0.15), transparent 28%),
    radial-gradient(circle at 12% 22%, rgba(40, 213, 154, 0.08), transparent 24%),
    var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(6, 11, 18, 0.82);
  border-bottom: 1px solid rgba(105, 232, 255, 0.12);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.hero-actions,
.demo-controls,
.header-actions,
.language-switch {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 760;
  max-width: 430px;
}

.brand-mark {
  display: grid;
  min-width: 34px;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(65, 217, 255, 0.22), rgba(40, 213, 154, 0.12));
  color: var(--cyan);
  border: 1px solid rgba(65, 217, 255, 0.28);
}

.nav-links {
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

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

.header-actions {
  gap: 10px;
}

.language-switch {
  min-height: 42px;
  padding: 0;
}

.language-switch select {
  width: auto;
  min-width: 112px;
  min-height: 34px;
  padding: 6px 30px 6px 10px;
  border-color: rgba(65, 217, 255, 0.22);
  background: #07111b;
  color: var(--ink);
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
}

.nav-cta {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 23, 34, 0.78);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(48px, 8vw, 112px) clamp(20px, 5vw, 72px) 48px;
  background:
    linear-gradient(90deg, rgba(65, 217, 255, 0.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(65, 217, 255, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 820;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(44px, 6vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.06;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.2;
}

.hero-lead,
.section-heading p,
.demo-copy p,
.contact-section p {
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  gap: 12px;
  flex-wrap: wrap;
  margin: 30px 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
  font-weight: 760;
}

.button.primary {
  background: linear-gradient(135deg, #41d9ff, #28d59a);
  color: #031018;
  box-shadow: 0 16px 42px rgba(65, 217, 255, 0.2);
}

.button.secondary {
  border-color: var(--line);
  background: rgba(13, 23, 34, 0.78);
  color: var(--ink);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
}

.hero-metrics div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 23, 34, 0.72);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.hero-metrics dt {
  font-size: 24px;
  font-weight: 820;
}

.hero-metrics dd {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  padding: 10px;
  border: 1px solid rgba(65, 217, 255, 0.22);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(65, 217, 255, 0.18), rgba(13, 23, 34, 0.52));
  box-shadow: var(--shadow);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 6px;
}

.trust-strip {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 0 clamp(20px, 5vw, 72px) 72px;
}

.trust-strip span {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(13, 23, 34, 0.8);
  color: var(--muted);
  font-size: 14px;
}

.section,
.demo-section,
.contact-section {
  padding: 88px clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.feature-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.price-card {
  min-height: 230px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(65, 217, 255, 0.055), transparent 48%),
    var(--surface);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.feature-card p,
.price-card p,
.timeline span {
  color: var(--muted);
}

.icon {
  display: inline-grid;
  width: 42px;
  height: 42px;
  margin-bottom: 24px;
  place-items: center;
  border-radius: 8px;
  background: rgba(65, 217, 255, 0.12);
  color: var(--cyan);
  border: 1px solid rgba(65, 217, 255, 0.2);
  font-size: 13px;
  font-weight: 820;
}

.demo-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1.15fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: start;
  background:
    linear-gradient(135deg, rgba(65, 217, 255, 0.08), transparent 44%),
    #08111a;
  color: var(--ink);
}

.demo-copy p {
  color: #b6c1cb;
}

.demo-panel {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.28);
}

label {
  display: grid;
  gap: 8px;
  font-weight: 760;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  background: #07111b;
  color: var(--ink);
  font: inherit;
}

.demo-panel textarea {
  margin-top: 8px;
  border-color: var(--line);
  background: #07111b;
  color: var(--ink);
}

.demo-controls {
  gap: 12px;
  margin-top: 14px;
}

.demo-controls select {
  max-width: 190px;
}

.demo-result {
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 12px;
  min-height: 96px;
  margin-top: 18px;
  padding: 18px;
  border-radius: 8px;
  background: #07111b;
  color: #dbe6ef;
}

.demo-result p {
  margin-bottom: 0;
}

.status-dot {
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-radius: 999px;
  background: var(--amber);
}

.status-dot.ready {
  background: var(--green);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  list-style: none;
}

.timeline li {
  min-height: 150px;
  padding: 22px;
  border-top: 3px solid var(--cyan);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.timeline strong,
.timeline span {
  display: block;
}

.timeline strong {
  margin-bottom: 10px;
}

.pricing {
  background:
    linear-gradient(180deg, rgba(65, 217, 255, 0.06), rgba(40, 213, 154, 0.035)),
    #08111a;
}

.pricing-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.price-card strong {
  display: inline-block;
  margin-top: 18px;
}

.price-card.featured {
  background:
    linear-gradient(135deg, rgba(65, 217, 255, 0.28), rgba(18, 22, 28, 0) 45%),
    var(--surface-strong);
  color: var(--ink);
}

.price-card.featured p {
  color: #b6c8d3;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 0.8fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.form-note {
  min-height: 24px;
  margin: 0;
  color: var(--green);
  font-size: 14px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .hero,
  .demo-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

@media (max-width: 720px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
  }

  .header-actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
  }

  .language-switch {
    justify-content: center;
  }

  .language-switch select {
    flex: 1;
  }

  h1 {
    font-size: 42px;
  }

  .hero-metrics,
  .feature-grid,
  .pricing-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .demo-controls {
    align-items: stretch;
    flex-direction: column;
  }

  .demo-controls select {
    max-width: none;
  }

  .site-footer {
    flex-direction: column;
  }
}