:root {
  --bg: #fbfcff;
  --surface: #ffffff;
  --fg: #0b1220;
  --muted: #4b5563;
  --line: #e5e7eb;
  --line-soft: #eef0f4;
  --accent: #1e3a8a;
  --accent-2: #3b82f6;
  --accent-hover: #1e40af;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --radius: 12px;
  --radius-lg: 16px;
  --max: 980px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body { position: relative; min-height: 100vh; overflow-x: hidden; }

.bg-aura {
  position: fixed;
  inset: -20% -10% auto -10%;
  height: 70vh;
  z-index: -1;
  background:
    radial-gradient(60% 50% at 20% 10%, rgba(59, 130, 246, 0.18), transparent 60%),
    radial-gradient(50% 50% at 85% 20%, rgba(139, 92, 246, 0.14), transparent 60%),
    radial-gradient(40% 60% at 50% 0%, rgba(30, 58, 138, 0.10), transparent 60%);
  filter: blur(30px);
  pointer-events: none;
}

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus { color: var(--accent-hover); }
a:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 4px; }

main, .site-header, footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header / brand */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--fg);
  font-weight: 700;
}
.brand:hover { color: var(--fg); }
.brand-mark { display: inline-flex; line-height: 0; filter: drop-shadow(0 4px 12px rgba(30, 58, 138, 0.25)); }
.brand-word { letter-spacing: 0.18em; font-size: 0.95rem; }

.site-header nav { display: flex; gap: 1.75rem; }
.site-header nav a { color: var(--muted); font-size: 0.95rem; font-weight: 500; }
.site-header nav a:hover { color: var(--fg); }

main { padding-top: 1.5rem; padding-bottom: 3rem; }

/* Sections */
section { padding: 3.5rem 0; }
section + section { border-top: 1px solid var(--line-soft); }

.section-tag {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-2);
  margin: 0 0 0.8rem;
}

.eyebrow {
  display: inline-block;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.08;
  margin: 0 0 1.2rem;
  letter-spacing: -0.025em;
  font-weight: 700;
  background: linear-gradient(180deg, var(--fg) 30%, #1e3a8a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.75rem);
  margin: 0 0 1rem;
  letter-spacing: -0.015em;
  font-weight: 700;
}

h3 { font-size: 1.05rem; margin: 0 0 0.45rem; font-weight: 600; }

p { margin: 0 0 1rem; }

.lede { font-size: 1.15rem; color: var(--muted); max-width: 60ch; }

/* Hero */
.hero { padding-top: 4rem; padding-bottom: 4.5rem; }

.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }

.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  color: #fff;
  padding: 0.8rem 1.3rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 6px 20px rgba(30, 58, 138, 0.25);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.cta:hover, .cta:focus {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(30, 58, 138, 0.32);
}
.cta-ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--line);
  box-shadow: none;
}
.cta-ghost:hover, .cta-ghost:focus {
  color: var(--fg);
  border-color: var(--accent-2);
  background: rgba(59, 130, 246, 0.05);
  box-shadow: none;
}

/* Service grid */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.25rem;
}

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem 1.4rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.card:hover {
  transform: translateY(-2px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: var(--shadow-md);
}
.card p { margin-bottom: 0; color: var(--muted); font-size: 0.97rem; }

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.12), rgba(30, 58, 138, 0.08));
  color: var(--accent);
  margin-bottom: 0.9rem;
}

/* Contact */
.contact .contact-line { margin-top: 1.5rem; }

/* Footer */
footer {
  border-top: 1px solid var(--line-soft);
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}
footer strong { color: var(--fg); letter-spacing: 0.05em; }

/* Responsive */
@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .site-header { padding-top: 1rem; padding-bottom: 1rem; }
  .site-header nav { gap: 1.1rem; }
  section { padding: 2.5rem 0; }
  .hero { padding-top: 2.5rem; padding-bottom: 3rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, .cta, .card { transition: none !important; }
  .cta:hover, .card:hover { transform: none; }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0d14;
    --surface: #11151f;
    --fg: #f3f4f6;
    --muted: #9ca3af;
    --line: #1f2937;
    --line-soft: #161b25;
    --accent: #93c5fd;
    --accent-2: #60a5fa;
    --accent-hover: #bfdbfe;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.5);
  }
  .bg-aura {
    background:
      radial-gradient(60% 50% at 20% 10%, rgba(59, 130, 246, 0.22), transparent 60%),
      radial-gradient(50% 50% at 85% 20%, rgba(139, 92, 246, 0.18), transparent 60%),
      radial-gradient(40% 60% at 50% 0%, rgba(30, 58, 138, 0.20), transparent 60%);
  }
  h1 {
    background: linear-gradient(180deg, var(--fg) 30%, #93c5fd 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .eyebrow {
    background: rgba(59, 130, 246, 0.10);
    border-color: rgba(59, 130, 246, 0.35);
    color: var(--accent);
  }
  .cta { color: #0a0d14; }
  .cta:hover, .cta:focus { color: #0a0d14; }
  .cta-ghost { color: var(--fg); border-color: var(--line); }
  .cta-ghost:hover, .cta-ghost:focus { color: var(--fg); }
  .card-icon {
    background: linear-gradient(180deg, rgba(96, 165, 250, 0.18), rgba(30, 58, 138, 0.20));
    color: var(--accent);
  }
}