/* Teoria de cada matéria (teoria.js). O texto usa as classes do leitor de livros (.trtexto, .trformula). */
.teoria .trtexto {
  font-size: 16px;
  line-height: 1.65;
  max-width: 78ch;
}
.teoriaitem {
  border-top: 1px solid var(--line);
  padding: 10px 0;
}
.teoriaitem > summary {
  cursor: pointer;
  font-weight: 700;
  padding: 4px 0;
}
.teoriaitem[open] > summary {
  margin-bottom: 8px;
}
.teoriaex {
  border-left: 3px solid var(--gold-line);
  padding: 2px 0 2px 14px;
  margin: 0 0 16px;
}
.teoriaex h4 {
  margin: 0 0 6px;
}
.teoriaex details > summary {
  cursor: pointer;
  color: var(--green);
  font-weight: 600;
}

/* Mapa mental: centro, ramos coloridos e folhas que viram ao toque. */
:root {
  --mm-1: #2f7d6b;
  --mm-2: #3b6ea8;
  --mm-3: #a8642a;
  --mm-4: #7a4fa0;
  --mm-5: #a8455a;
  --mm-6: #5b7a2c;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --mm-1: #6cc7ad;
    --mm-2: #8ab4e8;
    --mm-3: #e3a46b;
    --mm-4: #c3a0e6;
    --mm-5: #ec93a5;
    --mm-6: #a9cc73;
  }
}
:root[data-theme='dark'] {
  --mm-1: #6cc7ad;
  --mm-2: #8ab4e8;
  --mm-3: #e3a46b;
  --mm-4: #c3a0e6;
  --mm-5: #ec93a5;
  --mm-6: #a9cc73;
}
.mmapa .mmtopo {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
}
.mmapa .mmtopo h2 {
  margin: 0 0 2px;
}
.mmcentro {
  position: relative;
  margin: 18px auto 26px;
  max-width: 560px;
  padding: 16px 22px;
  border-radius: 999px;
  background: var(--navy);
  color: var(--on-navy);
  text-align: center;
  box-shadow: var(--shadow);
}
.mmcentro b {
  display: block;
  font-family: var(--display);
  font-size: 20px;
}
.mmcentro span {
  display: block;
  margin-top: 2px;
  color: var(--on-navy-muted);
  font-size: 14px;
}
.mmcentro::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 100%;
  width: 2px;
  height: 26px;
  background: var(--line-strong);
}
.mmramos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  padding-top: 14px;
  border-top: 2px solid var(--line-strong);
}
.mmramo {
  position: relative;
  border: 1px solid var(--line);
  border-top: 4px solid var(--mm);
  border-radius: 14px;
  padding: 12px;
  background: var(--surface);
}
.mmramo::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 100%;
  width: 2px;
  height: 16px;
  background: var(--line-strong);
}
.mmramo h3 {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--mm);
}
.mmramo h3 small {
  display: block;
  color: var(--muted);
  font-weight: 400;
  font-size: 12.5px;
  line-height: 1.35;
}
.mmnum {
  flex: none;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--mm);
  color: var(--surface);
  font-size: 13px;
}
.mmfolhas {
  display: grid;
  gap: 8px;
}
.mmfolha {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  color: var(--ink);
  background: color-mix(in srgb, var(--mm) 7%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--mm) 30%, var(--line));
  border-left: 3px solid var(--mm);
  border-radius: 10px;
  padding: 9px 11px;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}
.mmfolha:hover {
  background: color-mix(in srgb, var(--mm) 13%, var(--surface));
}
.mmfolha:focus-visible {
  outline: 3px solid var(--mm);
  outline-offset: 2px;
}
.mmfrente > b {
  display: block;
  font-size: 14.5px;
}
.mmformula {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  overflow-x: auto;
  overflow-y: hidden;
}
.mmverso {
  display: none;
  font-size: 14px;
  line-height: 1.5;
}
.mmfolha.virada .mmfrente {
  display: none;
}
.mmfolha.virada .mmverso {
  display: block;
  animation: mmvira 0.2s ease-out;
}
.mmteste .mmfolha:not(.virada) .mmformula {
  visibility: hidden;
  height: 1.4em;
  border-radius: 6px;
  background: color-mix(in srgb, var(--mm) 15%, transparent);
}
@keyframes mmvira {
  from {
    opacity: 0;
    transform: rotateX(70deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .mmfolha.virada .mmverso {
    animation: none;
  }
}
.mmligacoes {
  margin-top: 18px;
}
.mmligacoes h3 {
  font-size: 16px;
  margin: 0 0 8px;
}
.mmligacoes ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.mmligacoes li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  align-items: baseline;
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--gold-soft);
  border: 1px solid var(--gold-line);
  font-size: 14px;
}
.mmligacoes li > span:last-child {
  flex-basis: 100%;
  color: var(--muted);
}
.mmseta {
  color: var(--muted);
}
@media (max-width: 560px) {
  .mmcentro {
    border-radius: 18px;
  }
  .mmramo::before {
    display: none;
  }
}
.mmfolha {
  min-width: 0;
}
.mmfrente,
.mmverso {
  min-width: 0;
  overflow-wrap: anywhere;
}