/* G&P intro animation v3 — real logo PNG with cinematic entry
 * Pinky Creative Studio · 2026-04-27
 */

.intro-stage {
  position: fixed; inset: 0;
  z-index: 9000;
  background: radial-gradient(ellipse at 50% 50%, #0F2C50 0%, #050810 75%);
  display: grid; place-items: center;
  overflow: hidden;
  pointer-events: auto;
  transition: opacity .8s cubic-bezier(0.86, 0, 0.07, 1), visibility .8s;
}
.intro-stage.is-done { opacity: 0; visibility: hidden; pointer-events: none; }

body.intro-running { overflow: hidden; }

/* Engineering grid drift — subtle ambient */
.intro-stage::before {
  content: '';
  position: absolute; inset: -10%;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 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%);
  animation: introGridDrift 10s linear infinite;
  z-index: 0;
}
@keyframes introGridDrift { to { transform: translate(48px, 48px); } }

/* Cinematic vignette */
.intro-stage::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 80% at 50% 50%, transparent 35%, rgba(0,0,0,0.5) 100%);
  pointer-events: none;
  z-index: 1;
}

.intro-content {
  position: relative; z-index: 3;
  display: flex; flex-direction: column; align-items: center;
  width: 100%; max-width: 720px; padding: 0 24px;
}

/* Pomarańczowy/niebieski radial glow blob za logiem */
.intro-glow {
  position: absolute;
  width: 720px; height: 540px;
  left: 50%; top: 50%;
  transform: translate(-50%, -52%) scale(0.4);
  background:
    radial-gradient(ellipse 60% 50% at 30% 40%, rgba(43,118,187,.55) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 75% 60%, rgba(245,158,11,.55) 0%, transparent 65%);
  filter: blur(60px);
  opacity: 0;
  pointer-events: none;
  z-index: 2;
  will-change: transform, opacity;
}

/* Real logo image — głośna entry animacja */
.intro-logo-img {
  position: relative; z-index: 4;
  display: block;
  width: clamp(280px, 56vw, 640px);
  height: auto;
  max-height: 70vh;
  object-fit: contain;
  opacity: 0;
  filter: drop-shadow(0 30px 60px rgba(0,0,0,.55)) drop-shadow(0 0 40px rgba(43,118,187,.35));
  will-change: transform, opacity, filter;
}

/* Diagonal shimmer slide on top of logo */
.intro-shimmer {
  position: absolute; z-index: 5;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: clamp(280px, 56vw, 640px); height: clamp(180px, 36vw, 420px);
  background: linear-gradient(115deg,
    transparent 30%,
    rgba(255,255,255,.06) 45%,
    rgba(255,255,255,.22) 50%,
    rgba(255,255,255,.06) 55%,
    transparent 70%);
  mix-blend-mode: overlay;
  pointer-events: none;
  opacity: 0;
}

/* Sparkle particles around logo */
.intro-sparkles {
  position: absolute; z-index: 4;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 0; height: 0;
  pointer-events: none;
}
.intro-sparkle {
  position: absolute;
  left: 0; top: 0;
  width: var(--size, 4px); height: var(--size, 4px);
  border-radius: 50%;
  background: hsl(var(--hue, 38), 95%, 65%);
  box-shadow: 0 0 12px hsl(var(--hue, 38), 95%, 65%), 0 0 24px hsl(var(--hue, 38), 95%, 65%);
  opacity: 0.95;
  will-change: transform, opacity;
  animation-delay: var(--delay, 0s);
}

/* Claim line under logo */
.intro-claim {
  position: relative; z-index: 4;
  margin-top: clamp(28px, 4vw, 48px);
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(11px, 1.1vw, 14px);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: #F39329;
  opacity: 0;
  text-align: center;
  text-shadow: 0 0 18px rgba(245,158,11,.6);
}

/* Skip button */
.intro-skip {
  position: absolute; top: 22px; right: 22px; z-index: 6;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.04);
  padding: 10px 14px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12); cursor: pointer;
  transition: color .2s ease, border-color .2s ease;
}
.intro-skip:hover { color: #F39329; border-color: #F39329; }
.intro-skip kbd { font-family: inherit; margin-left: 8px; padding: 2px 6px; background: rgba(255,255,255,0.08); border-radius: 3px; }

/* Curtain wipe at end */
.intro-curtain {
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 0; background: #FFFFFF; z-index: 7; pointer-events: none;
}

/* Mobile tweaks */
@media (max-width: 640px) {
  .intro-glow { width: 480px; height: 360px; filter: blur(40px); }
  .intro-content { padding: 0 16px; }
  .intro-skip { top: 14px; right: 14px; font-size: 10px; padding: 8px 11px; }
}