/*
 * THE CHAMBER — the ask screen. A floating sphere hero, an engraved plate,
 * three tradition toggles, and a machined CONSULT button.
 */

.chamber {
  background: radial-gradient(600px 320px at 50% 6%, rgba(255, 106, 0, 0.09), transparent 62%);
}

.chamber__hero {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto var(--s-1);
}

.chamber__hero-glow {
  position: absolute;
  inset: 20% 18% 30%;
  background: radial-gradient(circle, rgba(255, 106, 0, 0.55), transparent 65%);
  filter: blur(18px);
  animation: emberPulse 4.5s ease-in-out infinite;
}

.chamber__hero-sphere {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: screen;
  animation: floaty 7s ease-in-out infinite;
}

@keyframes emberPulse {
  0%, 100% {
    opacity: 0.45;
    transform: scale(1);
  }
  50% {
    opacity: 0.85;
    transform: scale(1.08);
  }
}

@keyframes floaty {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.chamber__title {
  text-align: center;
  font-size: 1.75rem;
  margin: 0 0 0.875rem;
}

.chamber__lede {
  max-width: 26rem;
  margin: 0 auto 2rem;
  text-align: center;
  font-size: 1.0625rem;
}

.chamber__field {
  margin-bottom: var(--s-3);
}

.chamber__textarea {
  width: 100%;
  min-height: 7.5rem;
  padding: 1.25rem 1.375rem;
  background: linear-gradient(180deg, var(--iron-900), #0f1013);
  border: 0;
  border-radius: var(--r-lg);
  box-shadow: var(--well);
  color: var(--parchment);
  font-family: var(--font-passage);
  font-size: 1.05rem;
  line-height: 1.5;
  resize: vertical;
  transition: box-shadow 0.25s ease;
}

.chamber__textarea::placeholder {
  color: #5c616b;
  font-style: italic;
}

.chamber__textarea:focus {
  outline: none;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.6), inset 0 0 0 1px rgba(255, 106, 0, 0.55),
    0 0 24px -8px rgba(255, 106, 0, 0.5);
}

.tradition-selector {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: var(--s-3);
  padding: 0;
  border: 0;
  min-width: 0; /* fieldset's UA stylesheet imposes a min-content floor otherwise */
}

.tradition-selector legend {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.175em;
  text-transform: uppercase;
  color: var(--ash);
  padding: 0;
  margin-bottom: 0.75rem;
}

.tradition-plate {
  position: relative;
  min-width: 0;
}

.tradition-plate__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.tradition-plate__label {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 1.125rem 0.5rem 0.9rem;
  background: var(--metal-raised);
  border-radius: var(--r-md);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  color: var(--steel);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.tradition-plate__label:hover {
  transform: translateY(-2px);
}

.tradition-plate__label::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 106, 0, 0.16), rgba(255, 106, 0, 0.03));
  box-shadow: inset 0 0 0 1px rgba(255, 150, 60, 0.55), 0 10px 30px -12px rgba(255, 106, 0, 0.55);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.tradition-plate__seam {
  height: 2px;
  width: 52%;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--ember), var(--ember-glow), var(--ember), transparent);
  box-shadow: 0 0 14px 1px rgba(255, 106, 0, 0.8);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.tradition-plate__input:checked + .tradition-plate__label::before,
.tradition-plate__input:checked + .tradition-plate__label .tradition-plate__seam {
  opacity: 1;
}

.tradition-plate__input:focus-visible + .tradition-plate__label {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
}

.chamber__consult {
  width: 100%;
}

.chamber__mirror-link {
  display: block;
  margin-top: 1.25rem;
  text-align: center;
}

.form-error {
  color: var(--ember-glow);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: var(--s-2);
}

@media (min-width: 640px) {
  .chamber__hero {
    width: 290px;
    height: 290px;
  }

  .chamber__title {
    font-size: 2.125rem;
  }

  .chamber__textarea {
    font-size: 1.15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chamber__hero-glow,
  .chamber__hero-sphere {
    animation: none;
  }

  .tradition-plate__label {
    transition: none;
  }
}