/* Base & Utilities */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: #0a1628; color: #fff; }

/* Navbar */
#navbar { background: transparent; }
#navbar.scrolled { background: rgba(10, 22, 40, 0.92); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255,255,255,0.06); }
.nav-link { position: relative; }
.nav-link::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: #2dd4bf; transition: width 0.3s; }
.nav-link:hover::after { width: 100%; }

/* Mobile menu */
.mobile-link { display: block; padding: 0.5rem 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.mobile-link:last-child { border-bottom: none; }

/* Service cards */
.service-card { overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, #2dd4bf, #14b8a6); transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease; }
.service-card:hover::before { transform: scaleX(1); }

/* Area chips */
.area-chip { transition: all 0.3s ease; }

/* Scroll animations */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #0a1628; }
::-webkit-scrollbar-thumb { background: #152d4a; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #2dd4bf; }

/* Selection */
::selection { background: rgba(45, 212, 191, 0.3); color: #fff; }