/* Shared integration layer for the five standalone classes. */
nav .nav-logo { min-width: 0; }
.aula-brand { display: inline-flex; align-items: baseline; gap: 12px; color: inherit; text-decoration: none; }
.aula-mark { color: var(--gold); font-size: 1.25rem; letter-spacing: 3px; }
.aula-course { color: var(--light); font-family: 'DM Sans', sans-serif; font-size: .65rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; }
.aula-index-link { margin-left: auto; margin-right: 18px; padding: 9px 12px; border: 1px solid rgba(255,255,255,.15); color: var(--white); text-decoration: none; font-family: 'DM Sans', sans-serif; font-size: .68rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; transition: border-color .2s ease, color .2s ease; }
.aula-index-link:hover, .aula-index-link:focus-visible { border-color: var(--gold); color: var(--gold); }
.local-poll-note { max-width: 760px; margin: -20px 0 28px; color: var(--light); font-family: 'DM Sans', sans-serif; font-size: .76rem; line-height: 1.55; }
.lesson-sequence { min-height: 56vh; padding: 90px 60px; background: #ede8dc; color: #111; display: grid; place-items: center; }
.lesson-sequence-inner { width: min(100%, 1040px); }
.lesson-sequence-kicker { margin-bottom: 18px; color: #8e2b20; font-family: 'DM Sans', sans-serif; font-size: .68rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; }
.lesson-sequence h2 { max-width: 760px; margin: 0 0 44px; font-family: 'Bebas Neue', sans-serif; font-size: clamp(3.1rem, 7vw, 6.5rem); font-weight: 400; line-height: .86; text-transform: uppercase; }
.lesson-sequence-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.lesson-sequence-link { min-height: 126px; padding: 24px; border: 1px solid rgba(17,17,17,.2); color: #171714; text-decoration: none; display: flex; justify-content: space-between; align-items: end; gap: 18px; transition: background .2s ease, color .2s ease, transform .2s ease; }
.lesson-sequence-link:hover, .lesson-sequence-link:focus-visible { background: #171714; color: #f5f0e8; transform: translateY(-3px); }
.lesson-sequence-link small { display: block; margin-bottom: 7px; color: #777269; font-family: 'DM Sans', sans-serif; font-size: .63rem; letter-spacing: .08em; text-transform: uppercase; }
.lesson-sequence-link:hover small, .lesson-sequence-link:focus-visible small { color: #d4a017; }
.lesson-sequence-link strong { font-family: 'Bebas Neue', sans-serif; font-size: clamp(1.45rem, 3vw, 2.1rem); font-weight: 400; line-height: 1; text-transform: uppercase; }
.lesson-sequence-link--single { grid-column: 1 / -1; }
.lesson-sequence-arrow { font-size: 1.5rem; }
.lesson-copyright { margin: 44px 0 0; color: #625e55; font: 400 .75rem/1.5 'DM Sans', sans-serif; }
.qa-question:focus-visible, .poll-option:focus-visible, .concept-tag:focus-visible, .nav-dot:focus-visible, .btn-start:focus-visible, .btn-next:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }

@media (max-width: 768px) {
  .aula-brand { gap: 7px; }
  .aula-course { display: none; }
  .aula-index-link { margin-right: 10px; padding: 8px 9px; }
  .lesson-sequence { padding: 72px 24px; }
  .lesson-sequence-links { grid-template-columns: 1fr; }
  .lesson-sequence-link--single { grid-column: auto; }
}

@media (max-width: 430px) {
  .aula-index-link { font-size: 0; }
  .aula-index-link::after { content: 'Índice'; font-size: .62rem; }
  .nav-sections { gap: 4px; }
  .nav-dot { width: 7px; height: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}