/* ==========================================================================
   Area do aluno. Usa os tokens de style.css e nada dos componentes de admin.
   ========================================================================== */

body.student {
  background-image:
    radial-gradient(1000px 560px at 50% -12%, rgba(124, 92, 255, 0.15), transparent 64%),
    radial-gradient(700px 420px at 90% 8%, rgba(34, 211, 238, 0.07), transparent 62%);
}

.student-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(880px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0 6px;
}

.student-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 0.95rem;
  font-weight: 600;
}

.student-greeting {
  font-size: 0.85rem;
  color: var(--text-3);
}

.student-main {
  width: min(880px, calc(100% - 40px));
  margin: 0 auto;
  padding: 8px 0 80px;
}

.screen {
  animation: view-in 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* --- capa --- */

.hero {
  padding: 34px 0 26px;
}

.hero h1,
.lesson-hero h1 {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(2rem, 5vw, 2.9rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero p {
  margin-top: 10px;
  font-size: 1rem;
  color: var(--text-3);
}

/* --- cards de aula --- */

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.lesson-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.lesson-card:hover {
  border-color: var(--accent-line);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.lesson-index {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.5rem;
  color: var(--text-3);
  opacity: 0.55;
}

.lesson-card h2 {
  margin: 10px 0 8px;
  font-size: 1.16rem;
  font-weight: 600;
  line-height: 1.3;
}

.lesson-card p {
  flex: 1;
  font-size: 0.89rem;
  line-height: 1.6;
  color: var(--text-3);
}

.lesson-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--text-3);
}

.lesson-foot em {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-style: normal;
  font-weight: 600;
  color: var(--accent-ink);
}

.lesson-foot .icon {
  width: 13px;
  height: 13px;
}

.level-tag {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface-3);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-2);
}

.level-tag[data-level="beginner"]     { background: rgba(52, 211, 153, 0.14); border-color: rgba(52, 211, 153, 0.3); color: #6ee7b7; }
.level-tag[data-level="elementary"]   { background: rgba(34, 211, 238, 0.14); border-color: rgba(34, 211, 238, 0.3); color: #67e3f5; }
.level-tag[data-level="intermediate"] { background: rgba(251, 191, 36, 0.14); border-color: rgba(251, 191, 36, 0.3); color: #fcd34d; }
.level-tag[data-level="advanced"]     { background: rgba(124, 92, 255, 0.18); border-color: var(--accent-line); color: #b6a4ff; }

/* --- cabecalho da aula --- */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 26px 0 22px;
  font-size: 0.86rem;
  color: var(--text-3);
  transition: color 140ms ease;
}

.back-link:hover {
  color: var(--text);
}

.lesson-hero {
  margin-bottom: 26px;
}

.lesson-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.lesson-tags .level-tag {
  position: static;
}

.tag {
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 0.74rem;
  font-weight: 500;
}

.lesson-hero p {
  margin-top: 10px;
  font-size: 1rem;
  color: var(--text-3);
  text-transform: capitalize;
}

/* --- blocos da aula --- */

.sheet {
  margin-bottom: 18px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
}

.sheet h2 {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-3);
}

.sheet h2 .icon {
  width: 15px;
  height: 15px;
  color: var(--accent-ink);
}

.sheet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.counter {
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-3);
}

.sheet-goal {
  border-color: var(--accent-line);
  background:
    radial-gradient(460px 200px at 0% 0%, rgba(124, 92, 255, 0.14), transparent 70%),
    linear-gradient(180deg, var(--surface-2), var(--surface));
}

.sheet-goal p {
  margin-top: 12px;
  font-size: 1.06rem;
  line-height: 1.6;
  color: var(--text);
}

/* --- leitura --- */

.reading {
  margin-top: 16px;
}

.reading p {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--text-2);
}

.reading p + p {
  margin-top: 15px;
}

/* --- exercicios --- */

.progress-line {
  height: 4px;
  margin: 16px 0 22px;
  border-radius: 999px;
  background: var(--surface-3);
  overflow: hidden;
}

.progress-line span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 380ms cubic-bezier(0.22, 1, 0.36, 1);
}

.question + .question {
  margin-top: 26px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.question-prompt {
  font-size: 1.02rem;
  line-height: 1.65;
  white-space: pre-line;
}

.question-prompt b {
  margin-right: 6px;
  color: var(--text-3);
  font-weight: 600;
}

.options {
  display: grid;
  gap: 9px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  background: var(--input);
  color: var(--text-2);
  font: inherit;
  font-size: 0.95rem;
  line-height: 1.5;
  text-align: left;
  transition: border-color 140ms ease, background 140ms ease, color 140ms ease, transform 140ms ease;
}

.option:not([disabled]) {
  cursor: pointer;
}

.option:not([disabled]):hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
  transform: translateX(2px);
}

.option:focus-visible {
  outline: none;
  box-shadow: var(--ring);
}

.option-key {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  flex: none;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-3);
}

.option.is-correct {
  border-color: rgba(52, 211, 153, 0.45);
  background: rgba(52, 211, 153, 0.1);
  color: #a7f3d0;
}

.option.is-correct .option-key {
  border-color: rgba(52, 211, 153, 0.5);
  background: rgba(52, 211, 153, 0.2);
  color: #6ee7b7;
}

.option.is-wrong {
  border-color: rgba(251, 113, 133, 0.45);
  background: rgba(251, 113, 133, 0.1);
  color: #fecdd3;
}

.option.is-wrong .option-key {
  border-color: rgba(251, 113, 133, 0.5);
  background: rgba(251, 113, 133, 0.2);
  color: #fb7185;
}

.feedback {
  margin-top: 14px;
  padding: 13px 15px;
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--input);
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-3);
}

/* --- resultado --- */

.result {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding: 28px 22px;
  border: 1px solid var(--accent-line);
  border-radius: var(--r-lg);
  background: var(--accent-soft);
  text-align: center;
}

.result-icon {
  width: 30px;
  height: 30px;
  color: var(--accent-ink);
}

.result strong {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.5rem;
  font-weight: 600;
}

.result p {
  font-size: 0.93rem;
  color: var(--text-2);
}

.result .btn {
  margin-top: 8px;
}

/* --- vazio --- */

.blank {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  grid-column: 1 / -1;
  padding: 64px 24px;
  text-align: center;
}

.blank .icon {
  width: 34px;
  height: 34px;
  color: var(--text-3);
  opacity: 0.4;
}

.blank h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.3rem;
  font-weight: 600;
}

.blank p {
  max-width: 40ch;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-3);
}

.blank .btn {
  margin-top: 10px;
}

@media (max-width: 620px) {
  .student-top,
  .student-main {
    width: calc(100% - 32px);
  }

  .sheet {
    padding: 20px;
  }

  .student-greeting {
    display: none;
  }
}