:root {
  --brand: #00616f;
  --dark: #0f172a;
  --muted: #6b7280;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}

body {
  padding-top: 80px;
  background: linear-gradient(180deg, #fff, #f3f8ff);
  color: var(--dark);
}

.logo-dot {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--brand);
  box-shadow: 0 6px 18px rgba(185, 255, 102, 0.18);
}

.btn-brand {
  background: var(--brand);
  border: none;
  color: #091124;
}

.hero {
  padding: 80px 0;
}

.hero-card {
  border-radius: 18px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 30px rgba(16, 24, 40, 0.06);
  transition: transform .35s ease, box-shadow .35s ease;
}

.hero-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(16, 24, 40, 0.12);
}

.tilt {
  transform-style: preserve-3d;
  transition: transform .35s ease;
  perspective: 800px;
}

.tilt:hover {
  transform: rotateX(6deg) rotateY(-6deg) translateY(-6px);
}

.service-card {
  border-radius: 12px;
  padding: 20px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.04);
  transition: transform .25s ease, box-shadow .25s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 30px rgba(16, 24, 40, 0.08);
}

.placeholder {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, #eef2ff, #fff);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--muted);
  font-weight: 600
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.06);
  transition: transform .25s ease, background .25s ease;
  backdrop-filter: blur(4px);
}

.icon-btn:hover {
  transform: translateY(-6px) scale(1.06);
  background: linear-gradient(180deg, rgba(185, 255, 102, 0.12), rgba(185, 255, 102, 0.06));
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

#page-loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(243, 248, 255, 0.9));
  z-index: 9999;
}

.spinner {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  animation: spin 1.5s linear infinite;
  background: conic-gradient(var(--brand), transparent 60%);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width:768px) {
  .placeholder {
    height: 160px
  }

  .hero {
    padding: 48px 0
  }
}

.card-shadow {
  box-shadow: 0 12px 30px rgba(16, 24, 40, 0.06);
  border-radius: 12px
}

.fs-sm {
  font-size: 0.92rem;
  color: var(--muted)
}

html {
  scroll-behavior: smooth;
}

body.dark {
  background: #0f172a;
  color: #e2e8f0;
}

button:hover {
  border: 1px solid var(--brand) !important;
}

a:hover {
  border: 1px solid var(--brand) !important;
}

.nav-item>a:hover {
  border: 1px solid var(--brand) !important;
  color: var(--brand) !important;
}