/* ==========================================================================
   QUORIT — Understanding The Wound Stylesheet (understanding-the-wound.css)
   Aesthetic: Clinical Science | Systematic Wound Assessment Nexus
   Palette:
     Primary Red:       #D3171D
     Deep Red:          #A91F24
     Primary Orange:    #F78545
     Scientific Blue:   #292D76
     Scientific Green:  #10974A
     Soft Orange:       #FDE5D5
     Soft Red:          #FBE4E5
     Warm Off White:    #FCFAF8
     White:             #FFFFFF
     Primary Text:      #252525
     Secondary Text:    #667085
     Border:            #E8E1DC
   ========================================================================== */

/* Custom Micro-interactions & Visual Tokens */
.custom-border {
  border: 1px solid #E8E1DC;
}

.custom-border-orange {
  border: 1px solid rgba(247, 133, 69, 0.32);
}

.custom-border-red {
  border: 1px solid rgba(211, 23, 29, 0.32);
}

.custom-border-blue {
  border: 1px solid rgba(41, 45, 118, 0.25);
}

.custom-border-green {
  border: 1px solid rgba(16, 151, 74, 0.25);
}

.elevation-soft {
  box-shadow: 0 4px 20px -4px rgba(37, 37, 37, 0.05), 0 2px 6px -1px rgba(37, 37, 37, 0.02);
}

.elevation-card {
  box-shadow: 0 8px 30px -6px rgba(37, 37, 37, 0.06), 0 2px 8px -2px rgba(37, 37, 37, 0.03);
}

.elevation-hover {
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.28s ease, background-color 0.28s ease;
}

.elevation-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px -8px rgba(37, 37, 37, 0.09), 0 6px 12px -2px rgba(37, 37, 37, 0.04);
  border-color: rgba(247, 133, 69, 0.5);
}

/* Central Diagram Geometry & Pulse */
@keyframes centralPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(211, 23, 29, 0.25);
  }
  50% {
    transform: scale(1.02);
    box-shadow: 0 0 0 16px rgba(211, 23, 29, 0);
  }
}

.central-wound-node {
  animation: centralPulse 4s ease-in-out infinite;
}

@keyframes orbitSpin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.rotating-orbit-slow {
  animation: orbitSpin 60s linear infinite;
  transform-origin: center;
}

.rotating-orbit-reverse {
  animation: orbitSpin 45s linear infinite reverse;
  transform-origin: center;
}

/* Dotted Scientific Geometry Rings */
.scientific-ring-dotted {
  border: 1.5px dashed rgba(211, 23, 29, 0.25);
}

/* Connector Lines & Transitions */
.connector-line {
  transition: stroke 0.3s ease, stroke-width 0.3s ease, opacity 0.3s ease;
}

.nexus-node {
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease;
}

.nexus-node:hover {
  transform: translateY(-5px);
  border-color: #D3171D;
  box-shadow: 0 14px 28px -6px rgba(211, 23, 29, 0.12);
}

/* Node Active/Hover states synced with diagram */
.nexus-node.is-active,
.nexus-node.is-hovered {
  border-color: #D3171D;
  background-color: #FFFFFF;
  box-shadow: 0 16px 32px -8px rgba(211, 23, 29, 0.18);
}

/* Section 7 Progression Pills */
.progression-step {
  position: relative;
  transition: transform 0.25s ease, background-color 0.25s ease, color 0.25s ease;
}

.progression-step:hover {
  transform: translateY(-2px);
}

/* Intersection Observer Scroll Reveal */
.reveal-init {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

.delay-100 { transition-delay: 100ms; }
.delay-150 { transition-delay: 150ms; }
.delay-200 { transition-delay: 200ms; }
.delay-250 { transition-delay: 250ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }

/* Sticky Header Scrolled State */
header.header-scrolled {
  background-color: rgba(255, 255, 255, 0.98) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px -2px rgba(37, 37, 37, 0.05);
  border-bottom: 1px solid #E8E1DC;
}

/* Mobile Drawer Navigation */
#mobile-drawer {
  transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1);
}

#mobile-drawer.drawer-closed {
  transform: translateX(100%);
  pointer-events: none;
}

#mobile-drawer.drawer-open {
  transform: translateX(0);
  pointer-events: auto;
}

/* Accessible focus styling */
a:focus-visible, button:focus-visible {
  outline: 2px solid #D3171D;
  outline-offset: 3px;
}

/* Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-init {
    opacity: 1 !important;
    transform: none !important;
  }
}