:root {
  --navy-900: #0a1a42;
  --navy-800: #0f2258;
  --navy-700: #14306f;
  --blue-600: #1c7fd6;
  --blue-500: #2b93e6;
  --cyan-400: #56c7f2;
  --cyan-300: #8ad9f6;
  --ink-900: #0f172a;
  --slate-600: #4b5768;
  --slate-400: #8592a6;
  --surface: #f5f8fc;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  color: var(--ink-900);
}

h1, h2, h3, h4, .font-heading {
  font-family: "Poppins", ui-sans-serif, system-ui, sans-serif;
}

/* Utility bar + header */
.brand-gradient {
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 55%, var(--blue-600) 100%);
}

.hero-overlay {
  background: linear-gradient(100deg, rgba(10, 26, 66, 0.95) 0%, rgba(10, 26, 66, 0.82) 38%, rgba(10, 26, 66, 0.45) 68%, rgba(10, 26, 66, 0.25) 100%);
}

.eyebrow {
  letter-spacing: 0.18em;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  border-radius: 0.6rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--blue-500);
  color: #fff;
  box-shadow: 0 10px 24px -8px rgba(43, 147, 230, 0.55);
}

.btn-primary:hover {
  background: var(--cyan-400);
  box-shadow: 0 14px 28px -8px rgba(86, 199, 242, 0.6);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.55);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

.btn-dark {
  background: var(--navy-900);
  color: #fff;
}

.btn-dark:hover {
  background: var(--navy-700);
}

/* Cards */
.service-card {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 40px -20px rgba(10, 26, 66, 0.35);
}

.service-card img {
  transition: transform 0.5s ease;
}

.service-card:hover img {
  transform: scale(1.06);
}

.placeholder-tile {
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.14), transparent 55%),
    linear-gradient(135deg, var(--navy-800), var(--blue-600));
}

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--cyan-400);
  outline-offset: 2px;
}

/* Mobile nav */
#mobile-menu {
  transition: max-height 0.3s ease, opacity 0.25s ease;
  overflow: hidden;
}

/* Team illustration blobs */
.blob-ring {
  background: conic-gradient(from 180deg, var(--cyan-400), var(--blue-600), var(--navy-800), var(--cyan-400));
  filter: blur(0px);
}

/* Sticky shrink header handled via JS toggling this class */
.header-shrink {
  box-shadow: 0 8px 24px -12px rgba(10, 26, 66, 0.35);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}