#start-screen {
  --bg-deep: #0a120e;
  --gold: #d9c27a;
  --gold-dim: #8a7440;
  --green-glow: rgba(79, 191, 108, 0.32);
  --ink: #e9f2ea;

  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
  padding: max(20px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right))
    max(20px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  font-family: 'Trebuchet MS', 'Segoe UI', sans-serif;
  color: var(--ink);
  position: relative;
  background:
    radial-gradient(ellipse 60% 45% at 50% 22%, var(--green-glow), transparent 70%),
    radial-gradient(ellipse 80% 55% at 50% 100%, rgba(217, 194, 122, 0.08), transparent 70%),
    var(--bg-deep);
}

#start-screen * {
  box-sizing: border-box;
}

/* slow drifting alchemical mist — pure CSS, no assets/libraries */
#start-screen::before {
  content: '';
  position: absolute;
  inset: -12%;
  background:
    radial-gradient(circle at 22% 28%, rgba(79, 191, 108, 0.09), transparent 42%),
    radial-gradient(circle at 78% 74%, rgba(79, 191, 108, 0.07), transparent 46%);
  filter: blur(48px);
  animation: mist-drift 20s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

@keyframes mist-drift {
  from {
    transform: translate(-2%, -1%) scale(1);
  }
  to {
    transform: translate(2%, 1.5%) scale(1.06);
  }
}

.menu {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(18px, 5vh, 44px);
  width: 100%;
  max-width: 420px;
}

.menu-logo {
  display: block;
  width: clamp(340px, 84vw, 760px);
  max-width: 88vw;
  height: auto;
  filter: drop-shadow(0 0 26px rgba(79, 191, 108, 0.35)) drop-shadow(0 8px 22px rgba(0, 0, 0, 0.6));
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: clamp(10px, 2vh, 16px);
  width: min(100%, 320px);
  margin: 0;
  padding: 0;
  border: 0;
}

.menu-btn {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  border: 1.5px solid var(--gold-dim);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(217, 194, 122, 0.1), rgba(0, 0, 0, 0.25));
  color: var(--ink);
  font-family: inherit;
  font-size: clamp(0.85rem, 2.3vw, 1rem);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  min-height: 54px;
  padding: 10px 20px;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.15s ease, box-shadow 0.2s ease, opacity 0.15s ease;
}

.menu-btn:hover:not(:disabled) {
  border-color: var(--gold);
  box-shadow: 0 0 18px rgba(217, 194, 122, 0.25);
}

.menu-btn:active:not(:disabled) {
  transform: scale(0.97);
}

.menu-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.menu-btn--primary {
  border-color: var(--gold);
  background: linear-gradient(180deg, rgba(79, 191, 108, 0.24), rgba(217, 194, 122, 0.14));
  box-shadow: 0 0 22px rgba(79, 191, 108, 0.25), 0 0 14px rgba(217, 194, 122, 0.18);
}

.menu-btn--primary:hover {
  box-shadow: 0 0 30px rgba(79, 191, 108, 0.42), 0 0 18px rgba(217, 194, 122, 0.3);
}

.menu-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

@media (max-height: 600px) {
  .menu {
    gap: clamp(10px, 2.5vh, 20px);
  }

  .menu-logo {
    width: clamp(260px, 64vw, 480px);
  }

  .menu-btn {
    min-height: 48px;
  }
}