/* ================================================
   "Sobre o curso" — dropdown expansível, reutilizável
   Usa as variáveis de tema de cada curso (auto-temático).
   Carregar DEPOIS de styles.css e do styles-<curso>.css
   ================================================ */
.about-course {
  padding: clamp(48px, 8vw, 110px) clamp(20px, 5vw, 80px);
  background: var(--bg);
}
.about-inner { max-width: 980px; margin: 0 auto; }

.about-drop {
  border: 1px solid var(--rule-strong);
  border-radius: 18px;
  background: var(--bg-2, var(--bg));
  overflow: hidden;
  transition: border-color .35s ease, background .35s ease, box-shadow .35s ease;
}
.about-drop[open] {
  border-color: color-mix(in oklab, var(--red) 42%, transparent);
  box-shadow: 0 24px 60px -34px color-mix(in oklab, var(--red) 60%, transparent);
}

.about-summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  padding: clamp(24px, 3.2vw, 38px) clamp(22px, 3.6vw, 44px);
}
.about-summary::-webkit-details-marker { display: none; }

.about-head { flex: 1; min-width: 0; }
.about-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-mono, monospace);
  font-size: 11px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}
.about-eyebrow-line { width: 26px; height: 1px; background: var(--rule-strong); display: inline-block; }

.about-summary-title {
  display: block;
  margin: 0;
  font-family: var(--f-display, serif);
  font-size: clamp(21px, 2.5vw, 32px);
  line-height: 1.14;
  letter-spacing: -.015em;
  font-weight: 400;
  color: var(--ink);
  text-wrap: pretty;
}

.about-toggle {
  flex-shrink: 0;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid var(--rule-strong);
  position: relative;
  transition: background .25s ease, border-color .25s ease;
}
.about-toggle::before, .about-toggle::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  background: var(--ink);
  transition: background .25s ease, transform .25s ease, opacity .25s ease;
}
.about-toggle::before { width: 15px; height: 2px; transform: translate(-50%, -50%); }
.about-toggle::after  { width: 2px; height: 15px; transform: translate(-50%, -50%); }
.about-summary:hover .about-toggle { border-color: var(--red); }
.about-drop[open] .about-toggle { background: var(--red); border-color: var(--red); }
.about-drop[open] .about-toggle::before { background: #fff; }
.about-drop[open] .about-toggle::after { opacity: 0; transform: translate(-50%, -50%) rotate(90deg); }

.about-body { padding: 0 clamp(22px, 3.6vw, 44px) clamp(28px, 3.6vw, 44px); }
.about-body-inner {
  border-top: 1px solid var(--rule);
  padding-top: clamp(22px, 2.6vw, 32px);
  max-width: 76ch;
}
.about-body p {
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.78;
  color: var(--ink-dim);
  margin: 0 0 18px;
  text-wrap: pretty;
}
.about-body p:last-child { margin-bottom: 0; }
.about-body p strong { color: var(--ink); font-weight: 600; }
.about-body .about-kicker {
  color: var(--ink);
  font-family: var(--f-display, serif);
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.45;
  letter-spacing: -.01em;
}

@media (max-width: 640px) {
  .about-summary { gap: 14px; }
  .about-toggle { width: 40px; height: 40px; }
}