* { -webkit-font-smoothing: antialiased; }

html { scroll-behavior: smooth; }

body { font-family: 'IBM Plex Sans', sans-serif; }

.font-display { font-family: 'Inter Tight', sans-serif; letter-spacing: -0.02em; }

.lang-btn.active {
  background: #0047AB;
  color: white;
  box-shadow: 0 2px 8px rgba(0,71,171,0.25);
}
.lang-btn:not(.active) { color: #4A4A4A; }
.lang-btn:not(.active):hover { color: #0047AB; }

.nav-link {
  position: relative;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #4A4A4A;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
}
.nav-link:hover { color: #0047AB; background: #F4F6F8; }
.nav-link.active { color: #0047AB; }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background: #0047AB;
  border-radius: 2px;
}

.nav-link-mobile {
  display: block;
  padding: 0.75rem 1rem;
  font-weight: 500;
  color: #4A4A4A;
  border-radius: 0.5rem;
  transition: all 0.2s;
}
.nav-link-mobile:hover { background: #F4F6F8; color: #0047AB; }
.nav-link-mobile.active { background: #0047AB; color: white; }

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  background: #0047AB;
  color: white;
  font-weight: 600;
  border-radius: 9999px;
  font-size: 0.9rem;
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 4px 14px rgba(0,71,171,0.25);
  position: relative;
  overflow: hidden;
  z-index: 1;
}
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.6s ease;
  z-index: -1;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,71,171,0.4);
  background: #003a8c;
}
.btn-primary:hover::before {
  left: 100%;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  background: white;
  color: #0047AB;
  font-weight: 600;
  border-radius: 9999px;
  font-size: 0.9rem;
  border: 1.5px solid #0047AB;
  transition: all 0.3s ease;
}
.btn-ghost:hover {
  background: #0047AB;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,71,171,0.3);
}

.hero-bg {
  background-image: linear-gradient(rgba(255,255,255,0.55), rgba(255,255,255,0.3)), url('assets/d22d153e3c803cac_oil_drilling_rig_sunrise_photography_index_1.jpeg');
  background-size: cover;
  background-position: center;
  animation: slowZoom 20s ease-in-out infinite alternate;
}
@keyframes slowZoom {
  from { background-size: 105%; }
  to { background-size: 115%; }
}

.card-hover {
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.card-hover:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px -10px rgba(0,71,171,0.18);
}

.solution-card {
  position: relative;
  overflow: hidden;
}
.solution-card::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0,71,171,0.05), transparent);
  transition: left 0.6s ease;
}
.solution-card:hover::before { left: 100%; }

.parallax-img {
  transition: transform 0.6s ease;
}
.parallax-img:hover { transform: scale(1.03); }

.float {
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

.scroll-indicator {
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

.hero-title {
  background: linear-gradient(135deg, #0047AB 0%, #002d6b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

input:focus, textarea:focus {
  outline: none;
  border-color: #0047AB;
  box-shadow: 0 0 0 3px rgba(0,71,171,0.12);
}

.number-badge {
  font-family: 'Inter Tight', sans-serif;
  font-weight: 800;
  font-size: 4rem;
  line-height: 1;
  background: linear-gradient(135deg, #0047AB, #6ca0ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.25;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}