:root {
  --bg: #0d1321;
  --panel: #151f33;
  --panel-soft: #1d2a44;
  --text: #f5f7fb;
  --muted: #b9c4d6;
  --accent: #39d0ff;
  --accent-strong: #00a6d6;
  --line: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(57, 208, 255, 0.18), transparent 32rem),
    linear-gradient(135deg, #0d1321 0%, #121a2b 52%, #0a0f19 100%);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 75%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: rgba(13, 19, 33, 0.84);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.8rem;
  color: #06111a;
  background: linear-gradient(135deg, var(--accent), #b6f2ff);
  box-shadow: 0 10px 24px rgba(57, 208, 255, 0.25);
}

.brand-text {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.nav {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.4rem);
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 650;
  font-size: 0.95rem;
}

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

main {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  min-height: 78vh;
  display: grid;
  grid-template-columns: minmax(0, 1.24fr) minmax(280px, 0.76fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(4rem, 10vw, 8rem) 0;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
}

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

.hero-brand {
  margin: 0 0 0.55rem;
  font-size: clamp(3.2rem, 10vw, 6.8rem);
  line-height: 0.9;
  letter-spacing: -0.085em;
  font-weight: 950;
  color: var(--text);
}

h1 {
  max-width: 840px;
  font-size: clamp(1.9rem, 4.8vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
  margin-bottom: 1.35rem;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 3.05rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.55rem;
}

.hero-text,
.section-heading p,
.materials-section p {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1.15rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  color: #06111a;
  background: var(--accent);
  box-shadow: 0 14px 30px rgba(57, 208, 255, 0.2);
}

.button.secondary {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
}

.trust-strip span {
  display: inline-flex;
  border: 1px solid rgba(57, 208, 255, 0.22);
  background: rgba(57, 208, 255, 0.07);
  color: #d7f7ff;
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  font-weight: 750;
  font-size: 0.88rem;
}

.hero-card,
.card,
.contact-panel,
.material-list div,
.contact-card {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(29, 42, 68, 0.92), rgba(21, 31, 51, 0.84));
  box-shadow: var(--shadow);
  border-radius: 1.5rem;
}

.hero-card {
  padding: clamp(1.5rem, 4vw, 2.3rem);
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  position: relative;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -28% 20%;
  height: 14rem;
  background: radial-gradient(circle, rgba(57, 208, 255, 0.22), transparent 70%);
}

.hero-card h2,
.hero-card p {
  position: relative;
  z-index: 1;
}

.hero-card p,
.card p,
.contact-panel p,
.steps,
.material-list span {
  color: var(--muted);
}

.part-visual {
  position: absolute;
  inset: 2.2rem 2.2rem auto auto;
  width: 13rem;
  height: 11rem;
  opacity: 0.98;
}

.part-visual span {
  position: absolute;
  display: block;
  border-radius: 1rem;
  background: linear-gradient(135deg, rgba(57, 208, 255, 0.9), rgba(255, 255, 255, 0.12));
  box-shadow: 0 22px 44px rgba(57, 208, 255, 0.17);
}

.part-visual span:nth-child(1) {
  width: 8.8rem;
  height: 5.3rem;
  right: 1.4rem;
  top: 0.9rem;
  transform: rotate(-14deg);
}

.part-visual span:nth-child(2) {
  width: 5rem;
  height: 5rem;
  left: 0.6rem;
  bottom: 1.1rem;
  border-radius: 50%;
}

.part-visual span:nth-child(3) {
  width: 7.5rem;
  height: 1.5rem;
  right: 0.3rem;
  bottom: 2rem;
  transform: rotate(13deg);
}

.section {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 1.5rem;
}

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

.services-grid {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  padding: 1.35rem;
}

.feature-card {
  min-height: 250px;
}

.card-number {
  display: inline-flex;
  color: var(--accent);
  font-weight: 900;
  font-size: 0.85rem;
  margin-bottom: 2.1rem;
}

.materials-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(2rem, 5vw, 4rem);
}

.material-list {
  display: grid;
  gap: 0.85rem;
}

.material-list div {
  padding: 1rem 1.15rem;
}

.material-list strong,
.material-list span {
  display: block;
}

.material-list strong {
  margin-bottom: 0.25rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.steps {
  margin: 0;
  padding-left: 1.25rem;
}

.steps li {
  margin-bottom: 1rem;
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.42fr);
  gap: 2rem;
  align-items: center;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: 4rem;
}

.contact-card {
  padding: 1.2rem;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: none;
}

.contact-link {
  display: inline-flex;
  color: var(--accent);
  text-decoration: none;
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 0.9rem;
}

.small-note {
  font-size: 0.92rem;
  margin-bottom: 0;
}

.site-footer {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 2.5rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .split,
  .materials-section,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .cards,
  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .button {
    width: 100%;
  }

  .contact-link {
    font-size: 1.35rem;
  }
}