/* ── Gate page (page 1) ── */

.main-wrap {
  position: relative;
  z-index: 5;
  visibility: hidden;
  pointer-events: none;
}

.main-wrap.main-wrap--visible,
body.main-unlocked .main-wrap {
  visibility: visible;
  pointer-events: auto;
}

.gate {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 5vw, 3rem);
  overflow: hidden;
}

.gate__content {
  position: relative;
  z-index: 12;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(1.25rem, 4vh, 2rem);
  width: min(100%, 420px);
  text-align: center;
}

.gate__logo {
  font-family: var(--font-display);
  font-size: clamp(4rem, 14vw, 7rem);
  font-weight: 300;
  line-height: 1;
  color: var(--cream);
  text-shadow:
    0 0 40px rgba(120, 80, 255, 0.35),
    0 0 80px rgba(212, 175, 88, 0.2);
}

#gate-form {
  width: 100%;
}

#gate-code {
  flex: 1 1 160px;
  text-align: center;
  letter-spacing: 0.18em;
}

#gate-torch {
  position: fixed;
  inset: 0;
  z-index: 8;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  background: radial-gradient(
    circle var(--spot-r) at var(--mx) var(--my),
    rgba(255, 235, 190, 0.18) 0%,
    rgba(255, 220, 150, 0.08) 32%,
    transparent 70%
  );
  mix-blend-mode: screen;
}

html.gate-spotlight-active #gate-torch {
  opacity: 1;
  visibility: visible;
}

#gate-reveal-layer {
  position: fixed;
  inset: 0;
  z-index: 9;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

html.gate-spotlight-active #gate-reveal-layer {
  opacity: 1;
  visibility: visible;
  -webkit-mask-image: radial-gradient(
    circle var(--spot-r) at var(--mx) var(--my),
    #000 0%,
    #000 36%,
    transparent 72%
  );
  mask-image: radial-gradient(
    circle var(--spot-r) at var(--mx) var(--my),
    #000 0%,
    #000 36%,
    transparent 72%
  );
}

.gate-secret {
  position: absolute;
  left: clamp(0.75rem, 3vw, 1.25rem);
  top: clamp(0.75rem, 3vh, 1.25rem);
  transform: none;
  font-family: var(--font-display);
  font-size: clamp(0.58rem, 1.4vw, 0.72rem);
  font-weight: 300;
  letter-spacing: 0.18em;
  color: var(--gold-bright);
  text-shadow: 0 0 28px rgba(255, 230, 170, 0.55);
  user-select: none;
  opacity: 0;
}

html.gate-spotlight-active .gate-secret {
  opacity: 1;
}

#gate-cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 520px;
  height: 520px;
  pointer-events: none;
  z-index: 9100;
  border-radius: 50%;
  background: radial-gradient(
    circle at center,
    rgba(255, 240, 200, 0.24) 0%,
    rgba(255, 220, 160, 0.1) 28%,
    rgba(120, 80, 255, 0.05) 50%,
    transparent 70%
  );
  transform: translate3d(calc(var(--mx) - 260px), calc(var(--my) - 260px), 0);
  will-change: transform;
  opacity: 0;
}

html.gate-cursor-ready #gate-cursor-glow {
  opacity: 1;
}

#gate-bulb-cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9101;
  pointer-events: none;
  transform: translate3d(calc(var(--mx) - 14px), calc(var(--my) - 32px), 0);
  filter: drop-shadow(0 0 12px rgba(255, 230, 150, 0.65))
    drop-shadow(0 0 28px rgba(212, 175, 88, 0.35));
  will-change: transform;
  opacity: 0;
}

html.gate-cursor-ready #gate-bulb-cursor {
  opacity: 1;
}

html.gate-active body {
  cursor: none;
}

@media (pointer: coarse) {
  html.gate-active body {
    cursor: auto;
  }
}

/* ── Quantum warp transition ── */

.quantum-warp {
  position: fixed;
  inset: 0;
  z-index: 500;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

.quantum-warp[aria-hidden='false'] {
  opacity: 1;
  visibility: visible;
}

.quantum-warp__core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 40vmax;
  height: 40vmax;
  margin: -20vmax 0 0 -20vmax;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 248, 230, 0.9) 0%,
    rgba(212, 175, 88, 0.45) 18%,
    rgba(120, 80, 255, 0.35) 42%,
    transparent 68%
  );
  transform: scale(0.05);
  opacity: 0;
  filter: blur(8px);
}

.quantum-warp__ring {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 120vmax;
  height: 120vmax;
  margin: -60vmax 0 0 -60vmax;
  border-radius: 50%;
  border: 1px solid rgba(212, 175, 88, 0.25);
  box-shadow:
    0 0 60px rgba(120, 80, 255, 0.4),
    inset 0 0 80px rgba(255, 230, 170, 0.08);
  transform: scale(0.15);
  opacity: 0;
}

.quantum-warp__streaks {
  position: absolute;
  inset: -20%;
  background: repeating-conic-gradient(
    from 0deg at 50% 50%,
    transparent 0deg 8deg,
    rgba(120, 80, 255, 0.12) 8deg 9deg
  );
  opacity: 0;
  mix-blend-mode: screen;
}

html.quantum-active .gate {
  animation: gate-quantum-out 1.05s cubic-bezier(0.55, 0.06, 0.22, 0.99) forwards;
}

html.quantum-active .main-wrap {
  visibility: visible;
  animation: main-quantum-in 1.05s cubic-bezier(0.16, 0.84, 0.22, 1) forwards;
}

html.quantum-active .quantum-warp__core {
  animation: quantum-core 1.05s cubic-bezier(0.45, 0, 0.2, 1) forwards;
}

html.quantum-active .quantum-warp__ring {
  animation: quantum-ring 1.05s cubic-bezier(0.45, 0, 0.15, 1) forwards;
}

html.quantum-active .quantum-warp__streaks {
  animation: quantum-streaks 1.05s ease-out forwards;
}

html.quantum-active #constellation,
html.quantum-active #particles {
  animation: bg-quantum-pulse 1.05s ease-out forwards;
}

@keyframes gate-quantum-out {
  0% {
    transform: scale(1);
    filter: blur(0);
    opacity: 1;
  }
  45% {
    transform: scale(1.35);
    filter: blur(2px);
    opacity: 0.85;
  }
  100% {
    transform: scale(4.5);
    filter: blur(28px);
    opacity: 0;
  }
}

@keyframes main-quantum-in {
  0% {
    transform: scale(0.12);
    filter: blur(36px);
    opacity: 0;
  }
  55% {
    transform: scale(1.06);
    filter: blur(6px);
    opacity: 0.75;
  }
  100% {
    transform: scale(1);
    filter: blur(0);
    opacity: 1;
  }
}

@keyframes quantum-core {
  0% {
    transform: scale(0.05);
    opacity: 0;
    filter: blur(12px);
  }
  35% {
    opacity: 1;
    filter: blur(4px);
  }
  100% {
    transform: scale(2.8);
    opacity: 0;
    filter: blur(40px);
  }
}

@keyframes quantum-ring {
  0% {
    transform: scale(0.15);
    opacity: 0;
  }
  30% {
    opacity: 0.7;
  }
  100% {
    transform: scale(1.4);
    opacity: 0;
  }
}

@keyframes quantum-streaks {
  0% {
    transform: scale(0.3) rotate(0deg);
    opacity: 0;
  }
  40% {
    opacity: 0.5;
  }
  100% {
    transform: scale(1.8) rotate(28deg);
    opacity: 0;
  }
}

@keyframes bg-quantum-pulse {
  0%, 100% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.35);
  }
}

@media (prefers-reduced-motion: reduce) {
  html.quantum-active .gate,
  html.quantum-active .main-wrap,
  html.quantum-active .quantum-warp__core,
  html.quantum-active .quantum-warp__ring,
  html.quantum-active .quantum-warp__streaks,
  html.quantum-active #constellation,
  html.quantum-active #particles {
    animation-duration: 0.35s;
  }
}