/* ==========================================================================
   Boot sequence preloader

   Deliberate constraints, because preloaders are usually a net negative:
     · Page content is in the DOM from the first byte — crawlers and
       screen readers never see this layer at all.
     · Shows once per session (sessionStorage), so returning visitors and
       anyone clicking through your own site never wait twice.
     · Skipped entirely under prefers-reduced-motion.
     · Hard 2.2s ceiling, dismissable by click/tap/key at any point.
     · If JS fails, the overlay never renders — the page is simply there.
   ========================================================================== */

#boot {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--void);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: opacity 0.55s var(--ease), visibility 0.55s;
}
#boot.gone { opacity: 0; visibility: hidden; pointer-events: none; }

/* scanline + vignette so it reads as a display coming up, not a spinner */
#boot::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.017) 0 1px, transparent 1px 3px),
    radial-gradient(120% 90% at 50% 50%, transparent 45%, rgba(0,0,0,0.75) 100%);
  pointer-events: none;
}

#boot-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
}

.boot-in {
  position: relative;
  z-index: 2;
  width: min(90vw, 460px);
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  padding: 0 1rem;
}

/* --- wordmark drawn as strokes --- */
.boot-mark {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: clamp(1.1rem, 4.5vw, 1.5rem);
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink);
}
.boot-mark .core {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--ember);
  box-shadow: 0 0 18px var(--ember);
  flex-shrink: 0;
  animation: bootCore 1.1s var(--ease) infinite alternate;
}
@keyframes bootCore {
  from { transform: scale(0.82); opacity: 0.65; }
  to   { transform: scale(1.12); opacity: 1; }
}
.boot-mark span { display: inline-block; opacity: 0; animation: bootLetter 0.34s var(--ease-out) forwards; }
@keyframes bootLetter {
  from { opacity: 0; transform: translateY(0.35em); filter: blur(4px); }
  to   { opacity: 1; transform: none; filter: none; }
}

/* --- log lines --- */
.boot-log {
  font-family: var(--mono);
  font-size: clamp(0.7rem, 2.7vw, 0.84rem);
  line-height: 2;
  color: var(--ink-2);
  min-height: 12em;
}
.boot-log div {
  opacity: 0;
  display: flex;
  gap: 0.7em;
  animation: bootLine 0.26s var(--ease-out) forwards;
}
.boot-log .ok { color: var(--ember); margin-left: auto; }
@keyframes bootLine { from { opacity: 0; transform: translateX(-6px); } to { opacity: 1; transform: none; } }

/* --- progress --- */
.boot-bar {
  height: 2px;
  background: var(--surface-3);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.boot-bar > i {
  position: absolute;
  inset: 0 100% 0 0;
  background: linear-gradient(90deg, var(--ember), var(--signal));
  box-shadow: 0 0 12px var(--ember-glow);
  animation: bootFill 2.2s var(--ease-out) forwards;
}
@keyframes bootFill { to { right: 0; } }

.boot-foot {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-4);
}

@media (prefers-reduced-motion: reduce) {
  #boot { display: none !important; }
}