/* Custom variables and utilities to augment Tailwind CSS */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-display: 'Outfit', sans-serif;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

.dark ::-webkit-scrollbar-track {
  background: #0f172a; /* Slate 900 */
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1; /* Slate 300 */
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8; /* Slate 400 */
}

.dark ::-webkit-scrollbar-thumb {
  background: #334155; /* Slate 700 */
}

.dark ::-webkit-scrollbar-thumb:hover {
  background: #475569; /* Slate 600 */
}

/* Glassmorphism helpers */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.dark .glass {
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Animations */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.animate-float {
  animation: float 4s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    opacity: 0.6;
    transform: scale(1);
  }
  50% {
    opacity: 0.9;
    transform: scale(1.05);
  }
}

.animate-pulse-glow {
  animation: pulse-glow 6s ease-in-out infinite;
}

/* Scroll reveal initial states */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered animation delay */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }

/* Dynamic Glow Card Effect */
.glow-card {
  position: relative;
  overflow: hidden;
}

.glow-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(to bottom right, rgba(99, 102, 241, 0.5), rgba(168, 85, 247, 0.5));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.glow-card:hover::before {
  opacity: 1;
}

/* Timeline vertical line */
.timeline-line::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, #6366f1, #a855f7);
}

@media (min-width: 768px) {
  .timeline-line::before {
    left: 50%;
    transform: translateX(-50%);
  }
}