:root {
  --bg: #0b0f14; /* deep blue-black */
  --panel: #0f1520;
  --card: #121a26;
  --muted: #94a3b8;
  --text: #e6eefc;
  --brand: #5dd0ff; /* cyan */
  --accent: #a78bfa; /* soft purple */
  --ring: rgba(93, 208, 255, 0.35);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --radius: 18px;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
}
body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    sans-serif;
  color: var(--text);
  background: radial-gradient(
      1200px 600px at 80% -20%,
      rgba(93, 208, 255, 0.08),
      transparent 60%
    ),
    radial-gradient(
      900px 500px at -10% 10%,
      rgba(167, 139, 250, 0.07),
      transparent 60%
    ),
    var(--bg);
  line-height: 1.6;
}
a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}
header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(10px);
  background: linear-gradient(
    180deg,
    rgba(11, 15, 20, 0.9),
    rgba(11, 15, 20, 0.6)
  );
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  box-shadow: 0 6px 18px rgba(93, 208, 255, 0.35);
}
.brand h1 {
  font-family: "Plus Jakarta Sans", Inter, sans-serif;
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.2px;
}
nav {
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}
nav a {
  font-weight: 600;
  color: #dbeafe;
}
.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #012;
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(93, 208, 255, 0.25);
  transition: 0.25s transform, 0.25s box-shadow;
}
.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(93, 208, 255, 0.35);
}
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(15, 21, 32, 0.7);
  color: #dbeafe;
  font-weight: 600;
  cursor: pointer;
  transition: 0.25s background, 0.25s border-color;
}
.menu-toggle:hover {
  background: rgba(15, 21, 32, 0.9);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Hero */
.hero {
  padding: 72px 0 24px;
}
.hero-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}
.kicker {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.3px;
}
h2 {
  font-size: 48px;
  line-height: 1.1;
  margin: 14px 0 10px;
  font-family: "Plus Jakarta Sans", Inter, sans-serif;
}
.lead {
  font-size: 18px;
  color: #cbd5e1;
}
.hero .actions {
  margin-top: 22px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.card {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.02),
    rgba(255, 255, 255, 0)
  );
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 18px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-img {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}
.hero-img img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(1.1);
}
.glow {
  position: absolute;
  inset: auto auto -30px -30px;
  width: 240px;
  height: 240px;
  background: radial-gradient(closest-side, var(--ring), transparent);
  pointer-events: none;
}

/* Feature grid */
.section {
  padding: 54px 0;
}
.section h3 {
  font-size: 28px;
  margin: 0 0 14px;
  font-family: "Plus Jakarta Sans", Inter, sans-serif;
}
.muted {
  color: var(--muted);
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.feature {
  padding: 18px;
}
.feature h4 {
  margin: 10px 0 6px;
}
.tag {
  display: inline-block;
  font-size: 12px;
  color: #0b1020;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  border-radius: 999px;
  padding: 6px 10px;
  font-weight: 700;
}
.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: center;
}

/* About */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}
.quote {
  font-size: 16px;
  color: #cbd5e1;
  border-left: 3px solid var(--brand);
  padding-left: 14px;
}

/* Contact */
.contact {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
}
.mailto {
  font-size: 18px;
}
.inline-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.input {
  background: #0d141f;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  padding: 12px 14px;
  border-radius: 12px;
  outline: none;
  width: 100%;
}
.input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--ring);
}

footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0 40px;
  color: #96a2b3;
}

/* Responsive */
@media (max-width: 980px) {
  .hero-wrap,
  .about,
  .contact {
    grid-template-columns: 1fr;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .split {
    grid-template-columns: 1fr;
  }
  h2 {
    font-size: 40px;
  }
}
@media (max-width: 720px) {
  .menu-toggle {
    display: inline-flex;
  }
  .nav-links {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    background: linear-gradient(
      180deg,
      rgba(17, 26, 38, 0.95),
      rgba(10, 15, 22, 0.95)
    );
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    padding: 18px;
    min-width: 220px;
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.45);
    z-index: 5;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-14px);
    transition: 0.25s opacity, 0.25s transform, 0.25s visibility;
  }
  .nav-links.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
  nav a {
    margin: 0;
  }
  .nav-links a {
    width: 100%;
    text-align: left;
  }
  .nav-links .cta {
    width: 100%;
    justify-content: center;
  }
}