:root {
  --sky: rgb(160, 236, 248);
  --aqua: rgb(0, 177, 210);
  --deep: rgb(4, 50, 56);

  --bg: #f8fbfc;
  --surface: #ffffff;

  --text: #17333a;
  --muted: #5f7278;

  --border: rgba(0, 177, 210, 0.10);

  --shadow:
    0 10px 30px rgba(0,0,0,0.04);

  --radius: 18px;
}

/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  background: var(--bg);

  color: var(--text);

  line-height: 1.75;

  font-size: 16.5px;

  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* TYPOGRAPHY */
h1,
h2,
h3 {
  color: var(--deep);

  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(3rem, 7vw, 5rem);

  line-height: 0.98;

  font-weight: 760;

  letter-spacing: -0.04em;

  max-width: 14ch;

  margin-bottom: 22px;
}

h2 {
  font-size: clamp(1.9rem, 3vw, 2.5rem);

  line-height: 1.08;

  font-weight: 720;

  margin-bottom: 16px;
}

h3 {
  font-size: 1.08rem;

  line-height: 1.3;

  font-weight: 680;

  margin-bottom: 10px;
}

p {
  color: var(--muted);

  max-width: 66ch;
}

.eyebrow {
  display: inline-block;

  margin-bottom: 18px;

  font-size: 0.76rem;

  font-weight: 700;

  letter-spacing: 2px;

  text-transform: uppercase;

  color: var(--aqua);
}

/* LAYOUT */
.container {
  width: min(90%, 1120px);

  margin: 0 auto;

  position: relative;
}

section {
  position: relative;

  padding: 90px 0;
}

/* HEADER */
header {
  position: sticky;

  top: 0;

  z-index: 1000;

  backdrop-filter: blur(14px);

  background: rgba(248,251,252,0.82);

  border-bottom: 1px solid rgba(0,0,0,0.04);
}

header .container {
  display: flex;

  justify-content: space-between;

  align-items: center;

  padding: 18px 0;
}

.logo {
  text-decoration: none;

  color: var(--deep);

  font-size: 1.05rem;

  font-weight: 760;

  letter-spacing: -0.02em;
}

nav {
  display: flex;

  align-items: center;

  gap: 22px;
}

nav a {
  text-decoration: none;

  color: var(--muted);

  font-size: 0.95rem;

  transition:
    color 0.18s ease,
    transform 0.18s ease;
}

nav a:hover {
  color: var(--deep);

  transform: translateY(-1px);
}

/* HERO */
.hero {
  position: relative;

  overflow: hidden;

  padding:
    140px
    0
    110px;

  background:
    linear-gradient(
      180deg,
      rgba(160,236,248,0.34),
      rgba(255,255,255,0)
    );
}

.hero::before {
  content: "";

  position: absolute;

  width: 520px;
  height: 520px;

  top: -180px;
  right: -120px;

  border-radius: 50%;

  background:
    radial-gradient(
      circle,
      rgba(0,177,210,0.18),
      transparent 68%
    );

  filter: blur(18px);

  pointer-events: none;
}

.hero::after {
  content: "";

  position: absolute;

  width: 340px;
  height: 340px;

  bottom: -140px;
  left: -80px;

  border-radius: 50%;

  background:
    radial-gradient(
      circle,
      rgba(160,236,248,0.22),
      transparent 70%
    );

  pointer-events: none;
}

.hero-content {
  position: relative;

  z-index: 2;

  max-width: 1250px;

  padding-left: 3px;
  padding-right: 0;
}

.hero p {
  font-size: 1.05rem;

  max-width: 58ch;

  margin-bottom: 16px;
}

.subtext {
  font-size: 0.97rem;

  color: #61757b;

  margin-bottom: 30px;
}

.micro-trust {
  margin-top: 16px;

  font-size: 0.9rem;

  color: #678086;
}

/* BUTTON */
.button {
  display: inline-flex;

  align-items: center;
  justify-content: center;

  text-decoration: none;

  background: var(--aqua);

  color: white;

  min-height: 52px;

  padding: 0 24px;

  border-radius: 999px;

  font-weight: 680;

  letter-spacing: -0.01em;

  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;

  box-shadow:
    0 12px 24px rgba(0,177,210,0.18);
}

.button:hover {
  transform: translateY(-2px);

  box-shadow:
    0 18px 30px rgba(0,177,210,0.22);
}

/* SECTION INTRO */
.section-intro {
  max-width: 62ch;

  margin-bottom: 34px;
}

/* SERVICES */
.services {
  overflow: hidden;
}

.services::before {
  content: "";

  position: absolute;

  width: 420px;
  height: 420px;

  top: -180px;
  right: -120px;

  border-radius: 50%;

  background:
    radial-gradient(
      circle,
      rgba(160,236,248,0.18),
      transparent 70%
    );

  pointer-events: none;
}

.service-grid {
  display: grid;

  grid-template-columns:
    repeat(auto-fit, minmax(260px, 1fr));

  gap: 22px;
}

.card {
  position: relative;

  background: rgba(255,255,255,0.74);

  backdrop-filter: blur(10px);

  border-radius: var(--radius);

  border: 1px solid var(--border);

  padding: 28px;

  box-shadow: var(--shadow);

  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);

  border-color: rgba(0,177,210,0.22);

  box-shadow:
    0 18px 36px rgba(0,0,0,0.06);
}

.card p {
  margin-bottom: 0;
}

/* ABOUT */
.about-grid {
  display: grid;

  grid-template-columns:
    repeat(auto-fit, minmax(240px, 1fr));

  gap: 18px;

  margin-top: 30px;
}

.about-block {
  background: white;

  border-radius: var(--radius);

  border: 1px solid rgba(0,0,0,0.05);

  padding: 26px;

  box-shadow:
    0 6px 18px rgba(0,0,0,0.035);

  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}

.about-block:hover {
  transform: translateY(-3px);

  box-shadow:
    0 16px 28px rgba(0,0,0,0.05);
}

/* CONTACT / CTA */
.contact {
  padding: 110px 0;

  background:
    linear-gradient(
      135deg,
      rgba(4,50,56,1),
      rgba(8,76,86,1)
    );

  overflow: hidden;
}

.contact::before {
  content: "";

  position: absolute;

  width: 480px;
  height: 480px;

  top: -220px;
  right: -120px;

  border-radius: 50%;

  background:
    radial-gradient(
      circle,
      rgba(255,255,255,0.08),
      transparent 70%
    );

  pointer-events: none;
}

.contact h2,
.contact p,
.contact .strong,
.contact .eyebrow {
  color: white;
}

.contact p {
  color: rgba(255,255,255,0.82);
}

.contact .button {
  margin-top: 10px;

  background: white;

  color: var(--deep);

  box-shadow:
    0 14px 28px rgba(0,0,0,0.16);
}

.contact .button:hover {
  background: #f5fefe;
}

.strong {
  font-size: 1.28rem;

  font-weight: 760;

  margin:
    14px
    0
    20px;
}

/* FOOTER */
footer {
  background: #031f23;

  padding: 28px 0;
}

footer p {
  color: rgba(255,255,255,0.72);

  text-align: center;

  font-size: 0.92rem;
}

/* MOBILE */
@media (max-width: 768px) {

  section {
    padding: 72px 0;
  }

  header .container {
    flex-direction: column;

    gap: 14px;
  }

  nav {
    gap: 18px;
  }

  .hero {
    padding:
      110px
      0
      80px;
  }

  h1 {
    font-size: clamp(2.5rem, 12vw, 4rem);

    max-width: 100%;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero p {
    max-width: 100%;
  }

  .service-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .card,
  .about-block {
    padding: 24px;
  }

  .button {
    width: 100%;
  }
}