/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s cubic-bezier(0.4,0,0.2,1), transform 0.6s cubic-bezier(0.4,0,0.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: 0.1s; }
.d2 { transition-delay: 0.2s; }
.d3 { transition-delay: 0.3s; }
.d4 { transition-delay: 0.4s; }


#hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(#c7d2e8 1px, transparent 1px);
  background-size: 24px 24px;
  z-index: 0;
  opacity: 0.55;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, black 20%, transparent 80%);
}

.hero-gradient-text {
  background: linear-gradient(135deg, #2563eb 0%, #3b82f6 40%, #6366f1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-orb-1 {
  position: absolute; border-radius: 50%; pointer-events: none; z-index: 0;
  width: 700px; height: 700px;
  top: -200px; right: -150px;
  background: radial-gradient(circle at 40% 40%, rgba(59,130,246,0.13) 0%, rgba(99,102,241,0.07) 45%, transparent 70%);
  filter: blur(60px);
}
.hero-orb-2 {
  position: absolute; border-radius: 50%; pointer-events: none; z-index: 0;
  width: 500px; height: 500px;
  bottom: -100px; left: -80px;
  background: radial-gradient(circle at 60% 60%, rgba(37,99,235,0.09) 0%, rgba(139,92,246,0.05) 50%, transparent 70%);
  filter: blur(50px);
}

/* Badge */
@keyframes ping { 75%,100% { transform: scale(2); opacity: 0; } }
.badge-ping { animation: ping 1.5s cubic-bezier(0,0,0.2,1) infinite; }

/* Hero animations */
.hero-greeting { opacity: 0; animation: fadeUp 0.7s cubic-bezier(0.4,0,0.2,1) 0.3s forwards; }
.hero-name { opacity: 0; animation: fadeUp 0.8s cubic-bezier(0.4,0,0.2,1) 0.5s forwards; }
.hero-role { opacity: 0; animation: fadeUp 0.7s cubic-bezier(0.4,0,0.2,1) 0.75s forwards; }
.hero-actions { opacity: 0; animation: fadeUp 0.7s cubic-bezier(0.4,0,0.2,1) 1s forwards; }
.hero-scroll { opacity: 0; animation: fadeUp 0.7s cubic-bezier(0.4,0,0.2,1) 1.4s forwards; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Nav */
.nav-link { position: relative; }
.nav-link::after { content: ''; position: absolute; bottom: -3px; left: 0; width: 0; height: 2px; background: #2563eb; border-radius: 2px; transition: width 0.3s cubic-bezier(0.4,0,0.2,1); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* Timeline */
.tl-line { position: relative; }
.tl-line::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, #2563eb, #dbeafe); border-radius: 2px; }

.proj-overlay { opacity: 0; transition: opacity 0.3s; }
.proj-card:hover .proj-overlay { opacity: 1; }
.proj-card:hover .proj-img { transform: scale(1.05); }
.proj-img { transition: transform 0.5s cubic-bezier(0.4,0,0.2,1); }

:focus-visible { outline: 2px solid #2563eb; outline-offset: 2px; border-radius: 4px; }

/* Animation */
@media (prefers-reduced-motion: reduce) {
  .reveal, .hero-greeting, .hero-name, .hero-role, .hero-actions, .hero-scroll {
    opacity: 1 !important; transform: none !important; animation: none !important; transition: none !important;
  }
  .proj-img, .proj-overlay { transition: none !important; }
}