/* =========================================================================
   VANTA//GT — polish layer
   Adds classes referenced by ui.js / main.js that aren't covered in the
   base style.css. Loaded last so it overrides as needed.
   ========================================================================= */

/* ---------- Prompt panel formatted content ---------- */
.prompt-panel-body { white-space: normal; }
.prompt-panel-body .prompt-h {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--accent-red);
  text-transform: uppercase;
  margin: 22px 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}
.prompt-panel-body .prompt-p {
  margin: 0 0 6px;
  color: var(--ink-1);
}
.prompt-panel-body .prompt-num {
  margin: 6px 0;
  color: var(--ink-0);
  font-weight: 600;
}
.prompt-panel-body .prompt-list {
  list-style: none;
  margin: 4px 0 8px;
  padding: 0;
}
.prompt-panel-body .prompt-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 4px;
  color: var(--ink-1);
}
.prompt-panel-body .prompt-list li::before {
  content: "→";
  position: absolute;
  left: 0; top: 0;
  color: var(--accent-blue);
  font-weight: 700;
}
.prompt-panel-body .prompt-spacer { height: 8px; }

.btn-ghost-sm.is-copied {
  color: var(--accent-blue) !important;
  border-color: var(--accent-blue) !important;
}

/* Active prompt-toggle indicator */
.prompt-toggle.is-active .prompt-toggle-line { background: var(--accent-red); }
.prompt-toggle.is-active .prompt-toggle-label { color: var(--accent-red); }

/* ---------- HUD nav: scrolled state polish ---------- */
.hud-nav.is-scrolled {
  background: rgba(5, 6, 8, 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line-strong);
}

/* ---------- Gallery v2 layered slide content ---------- */
.gallery-slide-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  pointer-events: none;
}
.gallery-slide-vignette {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5,6,8,0.25) 0%, rgba(5,6,8,0.85) 100%);
  pointer-events: none;
}
.gallery-slide-streak {
  position: absolute;
  top: 50%; left: -10%;
  width: 120%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--c, var(--accent-red)) 50%, transparent);
  opacity: 0.7;
  filter: blur(1px);
  transform: rotate(-12deg);
  pointer-events: none;
}
.gallery-slide-content {
  position: relative; z-index: 2;
  max-width: 620px;
}
.gallery-slide-id {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--accent-red);
  margin-bottom: 8px;
}
.gallery-slide-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--ink-3);
  margin-bottom: 18px;
}
.gallery-slide-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5vw, 64px);
  letter-spacing: -0.02em;
  line-height: 0.98;
  margin: 0 0 12px;
  color: var(--ink-0);
}
.gallery-slide-sub {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.25em;
  color: var(--ink-1);
  margin: 0 0 22px;
}
.gallery-slide-bar {
  width: 120px; height: 2px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.gallery-slide-bar span {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 100%;
  transform-origin: left;
  animation: gal-bar 1.6s var(--ease-power) both;
}
.gallery-slide.is-active .gallery-slide-bar span { animation-play-state: running; }
@keyframes gal-bar {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* ---------- Race mode: site-wide visual treatment ---------- */
body.is-race-mode {
  --accent-red: #ff5560;
}
body.is-race-mode .hero-vignette {
  background:
    radial-gradient(ellipse at center, transparent 30%, rgba(255,45,58,0.18) 100%),
    radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.6) 100%);
  animation: race-vignette 1.2s ease-in-out infinite alternate;
}
@keyframes race-vignette {
  from { opacity: 0.85; }
  to   { opacity: 1; }
}
body.is-race-mode .hud-nav { border-bottom-color: rgba(255,45,58,0.5); }

/* Toolbar reset pulse feedback */
.tool.is-pulsed { box-shadow: 0 0 0 2px var(--accent-red), 0 0 24px rgba(255,45,58,0.4); }

/* Drag hint fade */
.config-hint.is-fading {
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

/* ---------- Reveal helpers ---------- */
[data-reveal], .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.9s var(--ease-power), transform 0.9s var(--ease-power); }
[data-reveal].is-visible, .reveal.is-visible { opacity: 1; transform: translateY(0); }
.fleet-card, .perf-card { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease-power), transform 0.9s var(--ease-power); }
.fleet-card.is-visible, .perf-card.is-visible { opacity: 1; transform: translateY(0); }
.section-head { opacity: 0; transform: translateY(16px); transition: opacity 0.8s var(--ease-power), transform 0.8s var(--ease-power); }
.section-head.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- WebGL fallback ---------- */
.no-webgl .hero-canvas,
.no-webgl .config-canvas {
  display: none;
}
.no-webgl .hero::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 60%, rgba(201,20,24,0.35), transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(29,77,255,0.25), transparent 60%),
    linear-gradient(180deg, #07080d, #050507);
  z-index: 0;
}