/* ═══════════════════════════════════════════════════════════════════════
   VitalMatrix S9 Homepage — Award-Winning Enhancements (Beyond SV)
   15 features: Awwwards / FWA / CSS Design Awards tier
   Date: 2 May 2026 | W05 Claude Code
   Constraints: No CDN, no localStorage, British English, @font-face local() only
   ═══════════════════════════════════════════════════════════════════════ */

/* ─── ENHANCEMENT 1: Scroll-Velocity-Responsive Transitions ─── */
/* Sections respond to scroll speed: fast = snap, slow = cinematic */
.vm-reveal {
  transition: opacity 0.8s cubic-bezier(0.34, 1.56, 0.64, 1),
              transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}
body.vm-scroll-fast .vm-reveal {
  transition-duration: 0.25s !important;
  transition-timing-function: cubic-bezier(0.22, 1, 0.36, 1) !important;
}
body.vm-scroll-slow .vm-reveal {
  transition-duration: 1.2s !important;
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1) !important;
}

/* ─── ENHANCEMENT 2: Scroll-Pinned Narrative Sections ─── */
.vm-pin-wrap {
  position: relative;
  height: 300vh;
}
.vm-pin-content {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.vm-pin-frame {
  width: 100%;
  max-width: 1180px;
  padding: 0 48px;
  position: relative;
}
.vm-pin-step {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
              transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.vm-pin-step.active {
  opacity: 1;
  transform: translateY(0);
}

/* ─── ENHANCEMENT 3: Cursor Identity System ─── */
.vm-cursor {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1.5px solid rgba(201,168,76,0.6);
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  transition: width 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
              height 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
              border-color 0.3s ease,
              background 0.3s ease,
              opacity 0.3s ease;
  mix-blend-mode: difference;
  transform: translate(-50%, -50%);
}
.vm-cursor.vm-cursor-hover {
  width: 48px;
  height: 48px;
  border-color: rgba(201,168,76,0.3);
  background: rgba(201,168,76,0.06);
}
.vm-cursor.vm-cursor-text {
  width: 3px;
  height: 24px;
  border-radius: 2px;
  border-color: transparent;
  background: rgba(201,168,76,0.5);
}
.vm-cursor.vm-cursor-hidden {
  opacity: 0;
  width: 0;
  height: 0;
}
@media (hover: none), (max-width: 768px) {
  .vm-cursor { display: none !important; }
}
@media (prefers-reduced-motion: reduce) {
  .vm-cursor { display: none !important; }
}

/* ─── ENHANCEMENT 4: Smooth Scroll Engine (Lenis-style) ─── */
html.vm-smooth-scroll {
  scroll-behavior: auto !important;
}
html.vm-smooth-scroll body {
  overflow: hidden;
}
.vm-scroll-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  will-change: transform;
}

/* ─── ENHANCEMENT 5: Scroll-Driven FLINT Pipeline Animation ─── */
.vm-flint-pipeline {
  position: relative;
  height: 400px;
  max-width: 720px;
  margin: 48px auto 0;
}
.vm-flint-layer {
  position: absolute;
  left: 0;
  right: 0;
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 32px;
  border-radius: 8px;
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
              transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.vm-flint-layer.vm-flint-drawn {
  opacity: 1;
  transform: translateX(0);
}
.vm-flint-layer-l1 { top: 0; background: rgba(201,168,76,0.08); border: 1px solid rgba(201,168,76,0.20); }
.vm-flint-layer-l2 { top: 80px; background: rgba(26,122,138,0.08); border: 1px solid rgba(26,122,138,0.20); }
.vm-flint-layer-l3 { top: 160px; background: rgba(123,94,167,0.08); border: 1px solid rgba(123,94,167,0.20); }
.vm-flint-layer-l4 { top: 240px; background: rgba(95,124,108,0.08); border: 1px solid rgba(95,124,108,0.20); }
.vm-flint-layer-l5 { top: 320px; background: rgba(212,184,112,0.08); border: 1px solid rgba(212,184,112,0.20); }
.vm-flint-connector {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 0;
  background: linear-gradient(180deg, rgba(201,168,76,0.4), rgba(26,122,138,0.4), rgba(123,94,167,0.3));
  transition: height 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  transform: translateX(-50%);
}
.vm-flint-connector.vm-flint-connected {
  height: 100%;
}
.vm-flint-label {
  font-family: var(--vm-fm);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
}
.vm-flint-desc {
  font-family: var(--vm-fd);
  font-size: 13px;
  color: rgba(244,244,242,0.50);
  margin-left: 16px;
}

/* ─── ENHANCEMENT 6: Terrain Mesh as Living Background ─── */
.vm-terrain-bg {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 600px;
  height: 600px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 1.5s ease;
}
.vm-terrain-bg.visible {
  opacity: 1;
}
.vm-terrain-bg svg {
  width: 100%;
  height: 100%;
  animation: vmTerrainRotate 120s linear infinite;
}
@keyframes vmTerrainRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
  .vm-terrain-bg svg { animation: none; }
}
@media (max-width: 768px) {
  .vm-terrain-bg { width: 300px; height: 300px; }
}

/* ─── ENHANCEMENT 7: Zone Colour Bleed on Section Transitions ─── */
.vm-zone-bleed {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.8s ease;
}
.vm-zone-bleed.active {
  opacity: 1;
}
.vm-zone-bleed-z1 { background: radial-gradient(ellipse at 0% 50%, rgba(201,168,76,0.06) 0%, transparent 50%); }
.vm-zone-bleed-z2 { background: radial-gradient(ellipse at 100% 50%, rgba(26,122,138,0.06) 0%, transparent 50%); }
.vm-zone-bleed-z3 { background: radial-gradient(ellipse at 100% 100%, rgba(123,94,167,0.06) 0%, transparent 50%); }
.vm-zone-bleed-z4 { background: radial-gradient(ellipse at 0% 100%, rgba(95,124,108,0.06) 0%, transparent 50%); }
.vm-zone-bleed-z5 { background: radial-gradient(ellipse at 50% 0%, rgba(212,184,112,0.06) 0%, transparent 50%); }

/* ─── ENHANCEMENT 8: Typography Weight Animation on Scroll Entry ─── */
.vm-weight-reveal {
  font-weight: 100 !important;
  transition: font-weight 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0.4;
}
.vm-weight-reveal.vm-weight-crystallised {
  font-weight: 300 !important;
  opacity: 1;
}

/* ─── ENHANCEMENT 9: Card Proximity Light ─── */
.vm-proximity-grid {
  position: relative;
}
.vm-proximity-light {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,168,76,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.4s ease;
  transform: translate(-50%, -50%);
}
.vm-proximity-grid:hover .vm-proximity-light {
  opacity: 1;
}

/* ─── ENHANCEMENT 10: Ripple-on-Click for CTAs ─── */
.vm-ripple-wrap {
  position: relative;
  overflow: hidden;
}
.vm-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(201,168,76,0.25);
  transform: scale(0);
  animation: vmRippleExpand 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  pointer-events: none;
}
@keyframes vmRippleExpand {
  0% { transform: scale(0); opacity: 1; }
  100% { transform: scale(4); opacity: 0; }
}

/* ─── ENHANCEMENT 11: Spring Physics on Micro-interactions ─── */
.vm-spring {
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}
.vm-cta-glow,
.btn-s,
.vm-nav-cta,
.next-steps-card,
.infrastructure-card,
.output-card,
.vm-glass,
.pp-card,
.vm-diff-card {
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ─── ENHANCEMENT 12: Magnetic Nav Items ─── */
.vm-nav-links a,
.vm-nav-cta {
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
              color 0.2s ease;
}

/* ─── ENHANCEMENT 13: Page Loader with Architectural Reveal ─── */
.vm-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: #0D2B4E;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.vm-loader.vm-loader-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.vm-loader-logo {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.vm-loader-logo.vm-loader-logo-in {
  opacity: 1;
  transform: scale(1);
}
.vm-loader-pentagon {
  width: 120px;
  height: 120px;
  margin-top: 24px;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.vm-loader-pentagon.vm-loader-pentagon-in {
  opacity: 1;
}
.vm-loader-pentagon svg polygon {
  stroke-dasharray: 500;
  stroke-dashoffset: 500;
  transition: stroke-dashoffset 1s cubic-bezier(0.16, 1, 0.3, 1);
}
.vm-loader-pentagon.vm-loader-pentagon-draw svg polygon {
  stroke-dashoffset: 0;
}
.vm-loader-line {
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #C9A84C, transparent);
  margin-top: 20px;
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.vm-loader-line.vm-loader-line-draw {
  width: 200px;
}
.vm-loader-text {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(201,168,76,0.5);
  margin-top: 16px;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.vm-loader-text.vm-loader-text-in {
  opacity: 1;
}
@media (prefers-reduced-motion: reduce) {
  .vm-loader { display: none !important; }
}

/* ─── ENHANCEMENT 14: Skeleton Shimmer on Below-Fold Content ─── */
.vm-skeleton {
  position: relative;
  overflow: hidden;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
}
.vm-skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(201,168,76,0.04) 40%,
    rgba(201,168,76,0.08) 50%,
    rgba(201,168,76,0.04) 60%,
    transparent 100%
  );
  transform: translateX(-100%);
  animation: vmShimmer 1.8s ease infinite;
}
.vm-skeleton.vm-skeleton-loaded::after {
  display: none;
}
@keyframes vmShimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
@media (prefers-reduced-motion: reduce) {
  .vm-skeleton::after { animation: none; display: none; }
}

/* ─── ENHANCEMENT 15: View Transitions API ─── */
@view-transition {
  navigation: auto;
}
::view-transition-old(root) {
  animation: vmViewOut 0.3s ease forwards;
}
::view-transition-new(root) {
  animation: vmViewIn 0.3s ease forwards;
}
@keyframes vmViewOut {
  from { opacity: 1; transform: scale(1); }
  to { opacity: 0; transform: scale(0.98); }
}
@keyframes vmViewIn {
  from { opacity: 0; transform: scale(1.02); }
  to { opacity: 1; transform: scale(1); }
}

/* ─── GLOBAL OVERRIDE: Upgrade all easing to spring physics ─── */
.vm-glass,
.infrastructure-card,
.next-steps-card,
.output-card,
.pp-card,
.vm-diff-card,
.vm-cta-glow,
.btn-s {
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}

/* Prevent layout shift during loader */
body.vm-loading {
  overflow: hidden;
}