:root {
  --bg: #0E1520;
  --bg-alt: #152030;
  --surface: #1A2333;
  --text: #ECEFF1;
  --text-soft: #B0BEC5;
  --text-muted: #78909C;
  --blue: #2979FF;
  --green: #00E676;
  --gradient: linear-gradient(90deg, #2979FF 0%, #00E676 100%);
  --radius: 14px;
  --maxw: 1100px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(14, 21, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.brand img { height: 56px; width: auto; }
.nav { display: flex; gap: 28px; align-items: center; font-weight: 500; }
.nav a { color: var(--text-soft); transition: color 0.2s; }
.nav a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--gradient);
  color: #0E1520 !important;
  font-weight: 700;
}
.nav-cta:hover { opacity: 0.9; }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 120px 32px 100px;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 30%, rgba(41, 121, 255, 0.15), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(0, 230, 118, 0.10), transparent 55%),
    var(--bg);
}
.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.kicker {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid rgba(41, 121, 255, 0.4);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 12px;
  letter-spacing: 3px;
  margin-bottom: 28px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 24px;
  letter-spacing: -1px;
}
.lead {
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--text-soft);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.6;
}
.cta-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: var(--gradient);
  color: #0E1520;
  box-shadow: 0 8px 30px rgba(41, 121, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(41, 121, 255, 0.45); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.05); }
.btn-lg { padding: 18px 36px; font-size: 17px; }

/* ===== Sections ===== */
.section { padding: 90px 32px; }
.section-alt { background: var(--bg-alt); }
.section-inner { max-width: var(--maxw); margin: 0 auto; }
.section h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  margin: 0 0 28px;
  letter-spacing: -0.5px;
}
.section h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--gradient);
  border-radius: 2px;
  margin-top: 14px;
}
.section p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-soft);
  max-width: 720px;
}

/* ===== Service cards ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.card {
  background: var(--surface);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: transform 0.2s, border-color 0.2s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(41, 121, 255, 0.4);
}
.card-icon {
  font-size: 28px;
  margin-bottom: 14px;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  border-radius: 12px;
  color: #0E1520;
  font-weight: 800;
}
.card h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
}
.card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}

/* ===== CTA section ===== */
.section-cta {
  text-align: center;
  background:
    radial-gradient(circle at 50% 50%, rgba(0, 230, 118, 0.10), transparent 60%),
    var(--bg);
}
.section-cta h2::after { margin-left: auto; margin-right: auto; }
.section-cta .lead { margin: 0 auto 32px; }

/* ===== Footer ===== */
.site-footer {
  padding: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--bg);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
  color: var(--text-muted);
}
.footer-domain { font-weight: 700; color: var(--text-soft); }

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .site-header { padding: 12px 20px; }
  .brand img { height: 44px; }
  .nav { gap: 16px; font-size: 14px; }
  .hero { padding: 80px 20px 70px; }
  .section { padding: 64px 20px; }
}