/**
 * Global page transition loader — branded overlay (desktop + mobile).
 * Tokens from tokens.css (inlined in layout) provide palette + fonts.
 */

html.vs-loader-active,
body.vs-loader-active {
  overflow: hidden;
}

.vs-page-loader {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 2.5rem);
  isolation: isolate;
  pointer-events: auto;
}

.vs-page-loader__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(59, 130, 246, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse 80% 60% at 100% 100%, rgba(34, 211, 238, 0.1) 0%, transparent 45%),
    linear-gradient(165deg, var(--clr-void, #050505) 0%, #0c1220 45%, #0a1628 100%);
}

.vs-page-loader__frame {
  position: relative;
  width: min(100%, 22rem);
  text-align: center;
  padding: clamp(1.75rem, 5vw, 2.75rem) clamp(1.25rem, 4vw, 2rem);
  border-radius: var(--r-2xl, 2rem);
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.18);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 25px 50px -12px rgba(0, 0, 0, 0.45),
    0 0 80px -20px rgba(59, 130, 246, 0.15);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* SVG asset uses black fills; invert for dark overlay + soft cool glow */
.vs-page-loader__logo {
  display: block;
  width: clamp(7.5rem, 42vw, 11rem);
  height: auto;
  margin: 0 auto var(--sp-5, 1.25rem);
  filter:
    brightness(0)
    invert(1)
    drop-shadow(0 0 1px rgba(255, 255, 255, 0.35))
    drop-shadow(0 10px 28px rgba(0, 0, 0, 0.4))
    drop-shadow(0 0 32px rgba(96, 165, 250, 0.22));
}

.vs-page-loader__tagline {
  font-family: var(--ff-sans, 'Outfit', system-ui, sans-serif);
  font-size: clamp(0.6875rem, 2vw, 0.8125rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(226, 232, 240, 0.72);
  margin: 0 0 var(--sp-6, 1.5rem);
}

.vs-page-loader__rail {
  height: 3px;
  border-radius: var(--r-full, 9999px);
  background: rgba(148, 163, 184, 0.15);
  overflow: hidden;
}

.vs-page-loader__indeterminate {
  height: 100%;
  width: 40%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--clr-accent-primary, #3b82f6), var(--clr-accent-cyan, #22d3ee));
  animation: vs-loader-sweep 1.15s ease-in-out infinite;
  transform-origin: left center;
}

@keyframes vs-loader-sweep {
  0% {
    transform: translateX(-100%);
    opacity: 0.85;
  }
  50% {
    transform: translateX(120%);
    opacity: 1;
  }
  100% {
    transform: translateX(320%);
    opacity: 0.85;
  }
}

.vs-page-loader--exit {
  pointer-events: none;
  animation: vs-loader-fade-out 0.55s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.vs-page-loader--exit .vs-page-loader__frame {
  animation: vs-loader-scale-out 0.55s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes vs-loader-fade-out {
  to {
    opacity: 0;
    visibility: hidden;
  }
}

@keyframes vs-loader-scale-out {
  to {
    opacity: 0;
    transform: scale(0.96) translateY(8px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .vs-page-loader__indeterminate {
    animation: none;
    width: 100%;
    opacity: 0.75;
  }

  .vs-page-loader--exit {
    animation-duration: 0.2s;
  }

  .vs-page-loader--exit .vs-page-loader__frame {
    animation-duration: 0.2s;
  }
}

@media (max-width: 480px) {
  .vs-page-loader__frame {
    border-radius: var(--r-xl, 1.5rem);
  }
}

/* Skip link must sit above the loader when focused */
body .skip-to-content:focus {
  z-index: 100001 !important;
  left: 1rem !important;
  top: 1rem !important;
}