:root {
  --color-bg: #050816;
  --color-surface: rgba(17, 25, 40, 0.72);
  --color-card: rgba(15, 23, 42, 0.75);
  --color-muted: #9aa4b2;
  --color-foreground: #f8fafc;
  --color-accent: #38bdf8;
  --color-accent-strong: #22d3ee;
  --shadow-lg: 0 3vh 8vh rgba(15, 23, 42, 0.4);
  --shadow-md: 0 2vh 4vh rgba(15, 23, 42, 0.28);
  --radius-lg: 1.75rem;
  --radius-md: 1.125rem;
  --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --space-xs: clamp(0.8vh, 1.4vw, 1.6vh);
  --space-sm: clamp(1.4vh, 2.2vw, 2.4vh);
  --space-md: clamp(2.6vh, 3.2vw, 3.8vh);
  --space-lg: clamp(4.2vh, 5.4vw, 6.5vh);
  --space-xl: clamp(6.4vh, 8vw, 9.5vh);
  --space-xxl: clamp(9vh, 12vw, 14vh);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  color: var(--color-foreground);
  background: radial-gradient(circle at top left, #111827 0%, var(--color-bg) 55%, #020205 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  position: relative;
  min-height: 100vh;
}

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

a:hover {
  color: var(--color-accent-strong);
}

main {
  padding-top: clamp(6vh, 8vw, 8.5vh);
}

.container {
  width: min(92vw, 70rem);
  margin-inline: auto;
}

.container.narrow {
  width: min(90vw, 48.75rem);
  text-align: center;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding-block: var(--space-sm);
  transition: backdrop-filter var(--transition), background-color var(--transition), padding var(--transition), border var(--transition);
  background: linear-gradient(135deg, rgba(9, 13, 30, 0.72), rgba(15, 23, 42, 0.55));
  backdrop-filter: blur(1.125rem);
  border-bottom: 0.0625rem solid rgba(148, 163, 184, 0.18);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.4rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  color: rgba(248, 250, 252, 0.95);
  text-shadow: 0 0.125rem 0.875rem rgba(2, 6, 23, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1.6vw, 2.4vw, 3.2vw);
  font-weight: 500;
}

.nav-links a {
  position: relative;
  padding-bottom: 0.6vh;
  color: rgba(248, 250, 252, 0.92);
  text-shadow: 0 0.125rem 0.75rem rgba(2, 6, 23, 0.38);
  transition: color var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.8vh;
  width: 100%;
  height: 0.25vh;
  border-radius: 999rem;
  background: linear-gradient(135deg, transparent, var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
}

.site-header.scrolled {
  background: rgba(9, 13, 30, 0.92);
  padding-block: calc(var(--space-sm) * 0.7);
  border-bottom-color: rgba(148, 163, 184, 0.24);
  box-shadow: 0 3vh 6vh rgba(15, 23, 42, 0.35);
}

.site-header.scrolled .logo,
.site-header.scrolled .nav-links a {
  color: rgba(241, 245, 249, 0.92);
  text-shadow: none;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - clamp(6vh, 8vw, 11vh));
  padding-top: clamp(16vh, 18vw, 22vh);
  padding-bottom: clamp(12vh, 16vw, 20vh);
  display: flex;
  align-items: center;
  text-align: center;
}

.hero-gradient,
.hero-orb {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-gradient {
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.24) 0%, rgba(8, 145, 178, 0.12) 35%, rgba(5, 8, 22, 0) 70%);
  opacity: 0.9;
}

.hero-orb {
  width: clamp(28vh, 38vw, 44vh);
  height: clamp(28vh, 38vw, 44vh);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.35) 0%, rgba(2, 132, 199, 0) 70%);
  filter: blur(0);
  opacity: 0.55;
  transform: translateZ(0);
  animation: float 14s ease-in-out infinite;
}

.hero-orb--left {
  top: -14vh;
  left: -16vw;
  animation-delay: -4s;
}

.hero-orb--right {
  bottom: -18vh;
  right: -14vw;
  animation-duration: 18s;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-block;
  padding-block: clamp(0.6vh, 1.2vw, 1vh);
  padding-inline: clamp(2vw, 3vw, 4vw);
  border-radius: 999rem;
  background-color: rgba(148, 163, 184, 0.14);
  color: rgba(248, 250, 252, 0.76);
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.hero h1 {
  font-size: clamp(2.8rem, 5vw, 4rem);
  margin-top: 0;
  margin-bottom: clamp(2.4vh, 3.2vw, 4.2vh);
  line-height: 1.08;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent), #818cf8, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subtitle {
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  margin: 0 auto clamp(3vh, 4vw, 4.8vh);
  max-width: min(65vw, 45rem);
  color: rgba(226, 232, 240, 0.78);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: clamp(2vh, 2.8vw, 3.6vh);
  flex-wrap: wrap;
}

.scroll-indicator {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(1.2vh, 2vw, 2.6vh);
  margin-top: clamp(6vh, 8vw, 10vh);
  color: rgba(148, 163, 184, 0.75);
  font-size: 0.85rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  opacity: 0.9;
  animation: indicator-fade 6s ease-in-out infinite;
}

.scroll-indicator svg {
  color: rgba(148, 163, 184, 0.7);
}

.scroll-indicator__dot {
  animation: indicator-dot 2.6s ease-in-out infinite;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1vh, 2vw, 1.8vh);
  padding-block: clamp(1.2vh, 1.8vw, 2.4vh);
  padding-inline: clamp(4vw, 5vw, 6vw);
  border-radius: 999rem;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition), border-color var(--transition);
}

.cta.primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  color: #001524;
  box-shadow: var(--shadow-md);
}

.cta.primary:hover {
  transform: translateY(-0.6vh);
  box-shadow: 0 3vh 6vh rgba(34, 211, 238, 0.24);
}

.cta.secondary {
  border: 0.0625rem solid rgba(148, 163, 184, 0.35);
  color: rgba(241, 245, 249, 0.84);
  background-color: rgba(15, 23, 42, 0.4);
}

.cta.secondary:hover {
  border-color: rgba(148, 163, 184, 0.55);
  background-color: rgba(15, 23, 42, 0.65);
  transform: translateY(-0.6vh);
}

.about,
.contact {
  padding-block: var(--space-xl);
}

.about {
  backdrop-filter: blur(1.125rem);
  background: rgba(15, 23, 42, 0.35);
  border-top: 0.0625rem solid rgba(148, 163, 184, 0.06);
  border-bottom: 0.0625rem solid rgba(148, 163, 184, 0.06);
}

.about h2,
.services h2,
.contact h2 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  margin-bottom: var(--space-sm);
}

.about p {
  font-size: 1.08rem;
  color: rgba(203, 213, 225, 0.85);
}

.services {
  padding-block: var(--space-xxl);
  /* position: relative; */
}

.services::before {
  content: "";
  inset: 20% -18vw -12% -18vw;
  background: radial-gradient(circle at top, rgba(59, 130, 246, 0.1), transparent 65%);
  z-index: 0;
  pointer-events: none;
}

.section-heading {
  text-align: center;
  position: relative;
  z-index: 1;
}

.section-heading p {
  margin: var(--space-xs) auto 0;
  max-width: min(60vw, 40rem);
  color: rgba(203, 213, 225, 0.8);
}

.cards {
  position: relative;
  z-index: 1;
  margin-top: clamp(6vh, 8vw, 10vh);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: clamp(3vh, 4vw, 4.5vh);
}

.card {
  position: relative;
  padding: clamp(4.2vh, 5.5vw, 6.2vh);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.72));
  border: 0.0625rem solid rgba(148, 163, 184, 0.18);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 0.0625rem solid transparent;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(129, 140, 248, 0.05));
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  padding: 0.2vh;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  transform: translateY(-1.4vh);
  border-color: rgba(148, 163, 184, 0.35);
  box-shadow: var(--shadow-lg);
}

.card:hover::after {
  opacity: 1;
}

.card-icon {
  display: inline-flex;
  padding: clamp(1.2vh, 2vw, 2.2vh);
  border-radius: var(--radius-md);
  background: rgba(56, 189, 248, 0.1);
  margin-bottom: clamp(2.4vh, 3.2vw, 3.6vh);
}

.card-icon img {
  width: clamp(2.5rem, 6vw, 3.4rem);
  height: clamp(2.5rem, 6vw, 3.4rem);
}

.card h3 {
  font-size: 1.4rem;
  margin: 0 0 clamp(1.6vh, 2.4vw, 2.8vh);
}

.card p {
  margin: 0 0 clamp(1.8vh, 2.6vw, 3.2vh);
  color: rgba(203, 213, 225, 0.78);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding-block: clamp(0.6vh, 1vw, 0.9vh);
  padding-inline: clamp(2.6vw, 3.4vw, 4vw);
  border-radius: 999rem;
  background: rgba(148, 163, 184, 0.16);
  color: rgba(226, 232, 240, 0.85);
  font-size: 0.85rem;
  letter-spacing: 0.01em;
}

.contact {
  position: relative;
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(29, 78, 216, 0.25), rgba(30, 64, 175, 0));
  z-index: 0;
}

.contact-card {
  position: relative;
  z-index: 1;
  padding: clamp(5.2vh, 7vw, 8vh) clamp(4vw, 5.6vw, 6.8vw);
  border-radius: var(--radius-lg);
  background: rgba(15, 23, 42, 0.72);
  border: 0.0625rem solid rgba(148, 163, 184, 0.2);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(1.375rem);
}

.contact-card p {
  color: rgba(226, 232, 240, 0.82);
  margin: clamp(1.4vh, 2vw, 2.4vh) 0 clamp(2.8vh, 3.8vw, 4.6vh);
  font-size: 1.05rem;
}

.footer {
  padding-top: clamp(7vh, 9vw, 12vh);
  padding-bottom: clamp(5vh, 7vw, 9vh);
  background: linear-gradient(180deg, rgba(9, 13, 30, 0.92) 0%, rgba(5, 8, 22, 0.98) 100%);
  border-top: 0.0625rem solid rgba(148, 163, 184, 0.12);
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13.75rem, 1fr));
  gap: clamp(2.4vh, 3.6vw, 4.4vh);
  margin-bottom: clamp(4vh, 5.6vw, 6.4vh);
}

.footer h3 {
  margin-bottom: clamp(1.6vh, 2.4vw, 2.8vh);
  font-size: 1.1rem;
  color: rgba(248, 250, 252, 0.92);
}

.footer p,
.footer a {
  color: rgba(148, 163, 184, 0.85);
}

.footer a {
  display: inline-block;
  margin-bottom: clamp(1vh, 1.8vw, 2.2vh);
  transition: color var(--transition);
}

.footer a:hover {
  color: var(--color-accent);
}

.social-links {
  display: flex;
  gap: clamp(2vw, 3vw, 3.8vw);
}

.social-links a {
  margin-bottom: 0;
}

.copyright {
  display: block;
}

.copyright,
.footer p:last-of-type {
  color: rgba(148, 163, 184, 0.7);
}

@media (max-width: 768px) {
  .nav-links {
    gap: clamp(3vw, 4vw, 4.5vw);
    font-size: 0.95rem;
  }

  .hero {
    padding-top: clamp(18vh, 24vw, 28vh);
    padding-bottom: clamp(14vh, 18vw, 22vh);
  }

  .hero-actions {
    gap: clamp(2vh, 3vw, 3.2vh);
  }

  .card {
    padding: clamp(4vh, 5.5vw, 6vh);
  }

  .contact-card {
    padding: clamp(4.6vh, 6vw, 6.6vh) clamp(3.2vw, 4.4vw, 5vw);
  }
}

@media (max-width: 520px) {
  .nav-links {
    display: none;
  }

  .eyebrow {
    letter-spacing: 0.12em;
  }

  .hero h1 {
    font-size: clamp(2.4rem, 8vw, 3rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta {
    width: 100%;
  }

  .scroll-indicator {
    margin-top: clamp(5vh, 6.5vw, 7.2vh);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -3vh, 0);
  }
}

@keyframes indicator-dot {
  0% {
    transform: translateY(-1vh);
    opacity: 0;
  }
  20% {
    transform: translateY(0);
    opacity: 1;
  }
  80% {
    transform: translateY(1.6vh);
    opacity: 0;
  }
  100% {
    transform: translateY(1.6vh);
    opacity: 0;
  }
}

@keyframes indicator-fade {
  0%,
  100% {
    opacity: 0.75;
  }
  50% {
    opacity: 1;
  }
}