/* Screen-specific layout: Início, study, quiz, history, certificate. */

/* ---------- Início: courses and lesson cards ---------- */

.course__name {
  font-size: 1.5rem;
  margin-bottom: var(--space-1);
}

.course__meta {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-4);
}

.course__inherited { color: var(--text-faint); }

/* Faixa horizontal: o toque usa o scroll nativo (inércia e borda elástica do
   próprio navegador), e o mouse ganha o arrasto via carousel_controller. */
.lesson-rail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  overflow-x: auto;
  overscroll-behavior-x: contain;   /* não dispara o "voltar" por gesto lateral */
  scroll-snap-type: x proximity;    /* proximity não briga com o arrasto livre */
  cursor: grab;

  /* Sangra até a borda da tela; o padding realinha o primeiro card ao conteúdo. */
  margin-inline: calc(var(--space-4) * -1);
  padding-inline: var(--space-4);
  scroll-padding-inline: var(--space-4);

  scrollbar-width: none;            /* a espia do próximo card é a pista visual */
}

.lesson-rail::-webkit-scrollbar { display: none; }

.lesson-rail.is-dragging {
  cursor: grabbing;
  scroll-snap-type: none;
  user-select: none;
}

.lesson-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--text);
}

.lesson-rail .lesson-card {
  flex: 0 0 43%;                    /* ~2 cards + espia do terceiro */
  scroll-snap-align: start;
}

.lesson-card__cover {
  aspect-ratio: 2 / 3;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--navy-raised);
  display: grid;
  place-items: center;
}

.lesson-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lesson-card__placeholder {
  padding: var(--space-3);
  text-align: center;
  color: var(--gold);
  font-size: 0.95rem;
}

.lesson-card__name {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.3;

  /* Duas linhas no máximo, para os cards da faixa não ficarem desalinhados. */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.lesson-card__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--gold);
  font-size: 0.95rem;
}

.lesson-card__status svg { width: 1.1rem; height: 1.1rem; }

@media (min-width: 48rem) {
  .lesson-rail .lesson-card { flex-basis: 22%; }   /* ~4 cards + espia */
}

/* ---------- Lesson detail ---------- */

.lesson-detail {
  display: grid;
  gap: var(--space-5);
}

.lesson-detail__cover {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 16rem;
  margin-inline: auto;
}

.lesson-detail__course {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.lesson-detail__price {
  font-size: 1.5rem;
  color: var(--gold);
}

@media (min-width: 40rem) {
  .lesson-detail { grid-template-columns: 16rem 1fr; align-items: start; }
  .lesson-detail__cover { margin-inline: 0; }
}

/* ---------- Study: the reading surface ---------- */

.reader__controls {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.reader__control {
  min-width: 3.25rem;
  min-height: 2.5rem;
  border: 1px solid var(--gold);
  border-radius: var(--radius);
  background: transparent;
  color: var(--gold);
  cursor: pointer;
  transition: background-color var(--duration-instant) var(--ease-standard);
}

.reader__control:hover { background: var(--hairline-soft); }
.reader__control:active { background: var(--hairline); }

.reader__body {
  font-size: calc(1.05rem * var(--reading-scale));
  line-height: 1.65;
  transition: font-size var(--duration-standard) var(--ease-out-quart);
}

.reader__body h1,
.reader__body h2,
.reader__body h3 {
  transition: font-size var(--duration-standard) var(--ease-out-quart);
}

.reader__body h1 { font-size: calc(1.6rem * var(--reading-scale)); margin-bottom: var(--space-3); }
.reader__body h2 { font-size: calc(1.35rem * var(--reading-scale)); margin: var(--space-5) 0 var(--space-2); }
.reader__body h3 { font-size: calc(1.15rem * var(--reading-scale)); margin: var(--space-4) 0 var(--space-2); }
.reader__body ul, .reader__body ol { padding-left: var(--space-5); margin-bottom: var(--space-4); }
.reader__body li { margin-bottom: var(--space-2); }

.reader__body img {
  border-radius: var(--radius);
  border: 1px solid var(--gold-dim);
  margin: var(--space-4) auto;
}

.reader__body figcaption {
  text-align: center;
  font-size: 0.9rem;
  color: #5b5347;
}

/* ---------- Quiz ---------- */

.quiz__progress-label {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}

.quiz__progress {
  height: 0.5rem;
  border-radius: 999px;
  background: #24314a;
  overflow: hidden;
  margin-bottom: var(--space-5);
}

.quiz__progress-fill {
  height: 100%;
  background: var(--gold);
  transition: width var(--duration-standard) var(--ease-out-quart);
}

.quiz__prompt {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-2);
}

.quiz__statement {
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
}

.quiz__alternatives {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.alternative {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-standard),
              background-color var(--duration-fast) var(--ease-standard);
}

.alternative:has(input:checked) {
  border-color: var(--gold);
  background: rgba(240, 168, 30, 0.08);
}

/*
 * One question fieldset at a time; the Stimulus quiz controller toggles
 * [hidden]. A CSS animation (not a transition) restarts automatically each
 * time an element re-enters the render tree, so no JS timing code is needed.
 */
.quiz__step {
  border: 0;
  margin: 0;
  padding: 0;
  animation: rise-in var(--duration-standard) var(--ease-out-quart);
}

.alternative input[type="radio"] { width: 1.25rem; height: 1.25rem; accent-color: var(--gold); flex-shrink: 0; }

.alternative__letter { color: var(--gold); font-weight: 700; }

.quiz__result-value {
  text-align: center;
  font-size: 4rem;
  color: var(--gold);
  line-height: 1;
  margin: var(--space-5) 0 var(--space-2);
  animation: rise-in var(--duration-deliberate) var(--ease-out-quint);
}

.quiz__result-caption {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: var(--space-5);
}

/* ---------- History ---------- */

.history__course + .history__course { margin-top: var(--space-6); }

.history__average {
  margin: var(--space-4) 0;
  font-size: 1.1rem;
}

.history__average strong { color: var(--gold); font-size: 1.3rem; }

/* ---------- Notifications ---------- */

.notification + .notification { border-top: 1px solid var(--hairline-soft); }

.notification {
  padding: var(--space-4) 0;
}

.notification:first-child { padding-top: 0; }

.notification__title { margin-bottom: var(--space-1); }

.notification__time {
  display: block;
  margin-top: var(--space-2);
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ---------- Admin lists ---------- */

.admin-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--hairline-soft);
}


.admin-row:last-child { border-bottom: none; }

.admin-row__thumb {
  width: 4rem;
  aspect-ratio: 2 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--navy-sunken);
  flex-shrink: 0;
}

.admin-row__thumb img { width: 100%; height: 100%; object-fit: cover; }

.admin-row__body { flex: 1; min-width: 0; }

.admin-row__name { margin: 0; }

.admin-row__meta { margin: 0; color: var(--text-muted); font-size: 0.9rem; }

.admin-row__actions { display: flex; align-items: center; gap: var(--space-3); }

/* Must follow the rules above: a media query adds no specificity, so placing
   this earlier would let the unqualified .admin-row__body rule win.
   On narrow phones the actions drop to their own line rather than squeezing
   the module name into three wrapped lines. */
@media (max-width: 33rem) {
  .admin-row__actions { flex: 1 0 100%; justify-content: flex-end; }
}

/* ---------- Trix, trimmed to the approved toolbar ---------- */

trix-toolbar .trix-button--icon-quote,
trix-toolbar .trix-button--icon-code,
trix-toolbar .trix-button--icon-strike,
trix-toolbar .trix-button--icon-decrease-nesting-level,
trix-toolbar .trix-button--icon-increase-nesting-level { display: none; }

trix-editor {
  background: var(--paper);
  color: var(--text-on-paper);
  border-radius: var(--radius);
  border: 1px solid var(--gold);
  min-height: 18rem;
}

trix-toolbar .trix-button-row { gap: var(--space-2); }

trix-toolbar .trix-button-group {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--navy-raised);
  overflow: hidden;
}

trix-toolbar .trix-button-group:not(:first-child) { margin-left: 0; }

/* Trix ships black SVG icons at 60% opacity — invisible on navy. Inverting
   them to white is what makes the toolbar usable here; the active button
   flips back to the black icon over gold. */
trix-toolbar .trix-button {
  background: transparent;
  color: var(--text);
  border-bottom: none;
  min-height: 2.75rem;
}

trix-toolbar .trix-button:not(:first-child) { border-left: 1px solid var(--hairline); }

trix-toolbar .trix-button--icon {
  width: 2.75rem;
  height: 2.75rem;
  max-width: none;
}

trix-toolbar .trix-button--icon::before { filter: invert(1); opacity: 0.85; }

trix-toolbar .trix-button.trix-active {
  background: var(--gold);
  color: var(--text-on-gold);
}

trix-toolbar .trix-button--icon.trix-active::before { filter: none; opacity: 1; }

trix-toolbar .trix-button:disabled { color: var(--text-faint); }
trix-toolbar .trix-button--icon:disabled::before { filter: invert(1); opacity: 0.2; }

/* The link dialog is a white card, so its buttons keep the dark treatment. */
trix-toolbar .trix-dialog .trix-button {
  background: transparent;
  color: var(--text-on-paper);
  min-height: 2.5rem;
}