:root {
  --color-tech-green: #00FF9D;
  --color-cyan: #00E5FF;
  --color-deep-blue: #0B132B;
  --color-industrial-green: #00FF66;
  --color-alert-orange: #FF6B00;
  --color-geek-purple: #8B5CF6;
  --color-dark-bg: #0A0D14;
  --color-white: #FFFFFF;
  --color-light-gray: #F8F9FA;
  --color-gray: #6B7280;
  --font-heading: 'Montserrat', 'Inter', sans-serif;
  --font-body: 'Inter', 'Montserrat', sans-serif;
  --transition-base: 0.3s ease;
  --transition-smooth: 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: clip; }

body {
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--color-white);
  background: var(--color-dark-bg);
  overflow-x: clip;
}

a { text-decoration: none; color: inherit; }
button { border: none; cursor: pointer; font-family: inherit; }
img { max-width: 100%; display: block; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-dark-bg); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* Selection */
::selection { background: rgba(0,229,255,0.3); color: #fff; }

/* Screen reader only */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Animation base classes — progressive enhancement */
/* Content visible by default; JS hides then animates in */
.fade-in {
  opacity: 1; transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
/* JS sets .animate-ready on <html> to enable animation */
.animate-ready .fade-in {
  opacity: 0; transform: translateY(30px);
}
.animate-ready .fade-in.visible { opacity: 1; transform: translateY(0); }

.slide-left {
  opacity: 1; transform: translateX(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-ready .slide-left {
  opacity: 0; transform: translateX(-40px);
}
.animate-ready .slide-left.visible { opacity: 1; transform: translateX(0); }

.scale-in {
  opacity: 1; transform: scale(1);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.animate-ready .scale-in {
  opacity: 0; transform: scale(0.9);
}
.animate-ready .scale-in.visible { opacity: 1; transform: scale(1); }

/* Stagger delay for child elements */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 1024px) {
  .container { padding: 0 24px; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
}

/* Breadcrumb */
ol.breadcrumb, .breadcrumb {
  padding: 100px 0 20px;
  font-size: 14px;
  color: var(--color-gray);
  list-style: none;
  display: flex;
  gap: 8px;
  align-items: center;
}
ol.breadcrumb li+li::before, .breadcrumb li+li::before {
  content: '›'; margin-right: 8px; color: var(--color-gray);
}
.breadcrumb a { color: var(--color-cyan); }
.breadcrumb a:hover { text-decoration: underline; }
