.start-screen {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(2px);
}

body.start-locked {
  overflow: hidden;
}

.start-cover {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 60px 20px;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(42, 26, 10, 1) 0%, var(--elara-deep) 70%);
  border-bottom: 3px solid var(--elara-gold-dark);
}

.start-stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 15%, rgba(201,168,76,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 70%, rgba(201,168,76,0.4) 0%, transparent 100%),
    radial-gradient(2px 2px at 50% 10%, rgba(201,168,76,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 75% 30%, rgba(201,168,76,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 88% 80%, rgba(201,168,76,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 55%, rgba(201,168,76,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 38% 88%, rgba(201,168,76,0.4) 0%, transparent 100%),
    radial-gradient(2px 2px at 15% 45%, rgba(201,168,76,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 92% 18%, rgba(201,168,76,0.6) 0%, transparent 100%);
  opacity: 0.85;
  transform: translateZ(0) scale(1);
  transform-origin: 50% 50%;
  will-change: transform, opacity;
}

.start-glow {
  position: absolute;
  width: 520px;
  height: 520px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  background: radial-gradient(circle, rgba(201,168,76,0.08) 0%, transparent 70%);
  animation: startPulse 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes startPulse {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -60%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -60%) scale(1.15); }
}

.start-hole {
  position: absolute;
  width: min(76vw, 520px);
  height: min(76vw, 520px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -52%) scale(0.15);
  opacity: 0;
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 50%, rgba(0,0,0,0) 0%, rgba(0,0,0,0) 28%, rgba(0,0,0,0.85) 55%, rgba(0,0,0,1) 72%, rgba(0,0,0,1) 100%),
    radial-gradient(circle at 50% 50%, rgba(201,168,76,0.25) 0%, rgba(201,168,76,0.08) 38%, rgba(201,168,76,0) 62%);
  box-shadow: 0 0 80px rgba(0,0,0,0.75);
  pointer-events: none;
  transform-origin: 50% 50%;
  will-change: transform, opacity;
}

.start-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.start-subtitle {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.4em;
  color: var(--elara-gold-dark);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.start-title {
  appearance: none;
  border: none;
  background: transparent;
  font-family: 'Cinzel Decorative', serif;
  font-size: clamp(52px, 8vw, 100px);
  font-weight: 900;
  color: var(--elara-gold);
  text-shadow: 0 0 60px rgba(201,168,76,0.4), 0 4px 20px rgba(0,0,0,0.8);
  letter-spacing: 0.08em;
  line-height: 1;
  margin: 0;
  padding: 0;
  cursor: pointer;
  transition: transform 180ms ease, filter 180ms ease;
}

.start-title:hover {
  transform: translateY(-1px) scale(1.01);
  filter: brightness(1.05);
}

.start-title:active {
  transform: translateY(0) scale(0.995);
}

.start-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 16px 0 10px;
  width: 400px;
  max-width: 90vw;
}

.start-divider-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--elara-gold-dark), transparent);
}

.start-divider-diamond {
  width: 8px;
  height: 8px;
  background: var(--elara-gold);
  transform: rotate(45deg);
}

.start-hint {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--elara-gold-dark);
  text-transform: uppercase;
  opacity: 0.95;
}

.start-screen.is-entering {
  pointer-events: none;
}

.start-screen.is-entering .start-content {
  animation: startZoom 1200ms cubic-bezier(0.18, 0.95, 0.2, 1) forwards;
}

.start-screen.is-entering .start-hole {
  animation: startHole 1200ms cubic-bezier(0.18, 0.95, 0.2, 1) forwards;
}

.start-screen.is-entering .start-stars {
  animation: startStarsWarp 1200ms cubic-bezier(0.18, 0.95, 0.2, 1) forwards;
}

.start-screen.is-hidden {
  opacity: 0;
  transition: opacity 260ms ease;
}

@keyframes startZoom {
  0% { transform: translate3d(0,0,0) scale(1); opacity: 1; }
  55% { transform: translate3d(0,0,0) scale(1.35); opacity: 0.9; }
  100% { transform: translate3d(0,0,0) scale(1.9); opacity: 0; }
}

@keyframes startHole {
  0% { opacity: 0; transform: translate(-50%, -52%) scale(0.15) rotate(0deg); }
  25% { opacity: 0.8; transform: translate(-50%, -52%) scale(0.55) rotate(6deg); }
  100% { opacity: 1; transform: translate(-50%, -52%) scale(3.2) rotate(16deg); }
}

@keyframes startStarsWarp {
  0% { opacity: 0.85; transform: translateZ(0) scale(1) rotate(0deg); }
  40% { opacity: 0.7; transform: translateZ(0) scale(1.55) rotate(-4deg); }
  100% { opacity: 0; transform: translateZ(0) scale(2.8) rotate(-10deg); }
}

@media (prefers-reduced-motion: reduce) {
  .start-glow { animation: none; }
  .start-screen.is-entering .start-content,
  .start-screen.is-entering .start-hole,
  .start-screen.is-entering .start-stars {
    animation: none;
  }
}