/* ==========================================================================
   Instacor Uruguay - Design System & Styles
   Direction: Technical Engineering / Editorial Minimalist (Dark & Light)
   ========================================================================== */

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

:root {
  /* Brand Core */
  --brand-blue: #0066B3;
  --brand-blue-hover: #00508C;
  --brand-cyan: #00A3E0;
  --brand-dark-blue: #002A47;
  
  /* Theme: Light Defaults */
  --bg-primary: #F8FAFC;
  --bg-secondary: #FFFFFF;
  --bg-surface: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-subtle: rgba(226, 232, 240, 0.9);
  --border-strong: #CBD5E1;
  
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  
  --card-shadow: 0 10px 30px -10px rgba(0, 42, 71, 0.05), 0 1px 3px rgba(0, 0, 0, 0.02);
  --card-hover-shadow: 0 20px 40px -15px rgba(0, 102, 179, 0.12), 0 0 0 1px rgba(0, 102, 179, 0.15);
  
  --ambient-glow: radial-gradient(circle at 50% 0%, rgba(0, 102, 179, 0.08) 0%, transparent 70%);
}

.dark {
  /* Theme: Dark Overrides */
  --bg-primary: #080C15;
  --bg-secondary: #0D1424;
  --bg-surface: #111A2E;
  --bg-glass: rgba(13, 20, 36, 0.85);
  --border-subtle: rgba(30, 41, 59, 0.8);
  --border-strong: #334155;
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --card-hover-shadow: 0 20px 40px -15px rgba(0, 163, 224, 0.15), 0 0 0 1px rgba(0, 163, 224, 0.3);
  
  --ambient-glow: radial-gradient(circle at 50% 0%, rgba(0, 163, 224, 0.12) 0%, transparent 70%);
}

/* Base resets & typography */
html {
  scroll-behavior: smooth;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  letter-spacing: -0.025em;
}

.font-mono-tech {
  font-family: 'JetBrains Mono', monospace;
}

/* Precision grid background */
.tech-grid-pattern {
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(148, 163, 184, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148, 163, 184, 0.07) 1px, transparent 1px);
}

.dark .tech-grid-pattern {
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
}

/* Dot pattern */
.dot-pattern {
  background-image: radial-gradient(rgba(148, 163, 184, 0.2) 1px, transparent 1px);
  background-size: 24px 24px;
}

.dark .dot-pattern {
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
}

/* Glow effects */
.ambient-glow {
  background: var(--ambient-glow);
}

/* Glassmorphism */
.glass-panel {
  background-color: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
}

.card-interactive {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--card-shadow);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-interactive:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-hover-shadow);
  border-color: rgba(0, 102, 179, 0.35);
}

.dark .card-interactive:hover {
  border-color: rgba(0, 163, 224, 0.4);
}

/* Badges & Status */
.badge-rupe {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.dark .badge-rupe {
  background: rgba(16, 185, 129, 0.15);
  color: #34D399;
  border-color: rgba(16, 185, 129, 0.3);
}

.badge-tech {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  border-radius: 6px;
  background: rgba(0, 102, 179, 0.08);
  color: #0066B3;
  border: 1px solid rgba(0, 102, 179, 0.2);
}

.dark .badge-tech {
  background: rgba(0, 163, 224, 0.12);
  color: #38BDF8;
  border-color: rgba(0, 163, 224, 0.25);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 10px;
  background: linear-gradient(135deg, #0066B3 0%, #004D85 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(0, 102, 179, 0.35);
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0077D1 0%, #005A9C 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 102, 179, 0.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 10px;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background-color: var(--border-subtle);
  transform: translateY(-2px);
  border-color: var(--brand-cyan);
}

/* Client logos monochrome filter */
.client-logo-item {
  filter: grayscale(100%) opacity(0.65);
  transition: all 0.3s ease;
}

.client-logo-item:hover {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.05);
}

.dark .client-logo-item {
  filter: grayscale(100%) opacity(0.5) brightness(1.2);
}

.dark .client-logo-item:hover {
  filter: grayscale(0%) opacity(1) brightness(1);
}

/* Animations */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* Pulse dot */
.pulse-dot {
  position: relative;
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10B981;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: rgba(16, 185, 129, 0.4);
  animation: pulse-ring 1.8s cubic-bezier(0.24, 0, 0.38, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* Light image frame */
.image-premium-frame {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-subtle);
}

.image-premium-frame img {
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.image-premium-frame:hover img {
  transform: scale(1.03);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--brand-blue);
}