/* ============================================================
   belajar.css — halaman belajar aksara sunda
   ============================================================ */

.belajar-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ── Tab nav ── */
.tab-nav {
  display: flex;
  gap: 4px;
  margin-bottom: 28px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 6px;
  width: fit-content;
  align-self: center;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--clr-text-2);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.tab-btn:hover {
  background: var(--clr-surface-2);
  color: var(--clr-text-1);
}

.tab-btn--active {
  background: var(--clr-accent);
  color: #fff;
}

.tab-btn--active:hover {
  background: var(--clr-accent-mid);
}

.tab-btn .ti {
  font-size: 16px;
}

.tab-panel {
  display: none;
}

.tab-panel--active {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

/* ── Filter row ── */
.filter-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 20px;
  width: 100%;
}

.filter-chip {
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--clr-border);
  background: var(--clr-surface);
  color: var(--clr-text-2);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-chip:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

.filter-chip--active {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #fff;
}

/* ── Kartu grid ── */
.kartu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 12px;
  width: 100%;
}

.kartu {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 16px 10px 12px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), transform 0.15s, box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.kartu:hover {
  border-color: var(--clr-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(27, 111, 74, 0.12);
}

.kartu:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 2px;
}

.kartu-sunda {
  font-family: var(--font-sunda);
  font-size: 28px;
  color: var(--clr-accent);
  line-height: 1.2;
}

.kartu-latin {
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-text-1);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kartu-label {
  font-size: 11px;
  color: var(--clr-text-3);
}

/* ── Card overlay ── */
.card-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}

.card-overlay[hidden] {
  display: none;
}

.card-detail {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px 28px;
  max-width: 360px;
  width: 100%;
  text-align: center;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  animation: slideUp 0.2s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(16px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.card-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--clr-border);
  background: var(--clr-surface-2);
  color: var(--clr-text-2);
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.card-close:hover {
  background: var(--clr-border);
}

.card-detail-sunda {
  font-family: var(--font-sunda);
  font-size: 72px;
  color: var(--clr-accent);
  line-height: 1.1;
  margin-bottom: 12px;
}

.card-detail-latin {
  font-size: 28px;
  font-weight: 600;
  color: var(--clr-text-1);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.card-detail-label {
  font-size: 14px;
  color: var(--clr-text-3);
  margin-bottom: 28px;
}

.card-detail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--clr-border);
  padding-top: 20px;
}

.card-nav-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
  background: transparent;
  color: var(--clr-text-2);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
}

.card-nav-btn:hover {
  background: var(--clr-surface-2);
  color: var(--clr-text-1);
}

.card-counter {
  font-size: 13px;
  color: var(--clr-text-3);
}

/* ── Latihan ── */
.latihan-wrap {
  max-width: 520px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.latihan-intro {
  font-size: 15px;
  color: var(--clr-text-2);
  text-align: center;
}

.latihan-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  width: 100%;
  padding: 40px 20px 32px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.latihan-sunda {
  font-family: var(--font-sunda);
  font-size: 80px;
  color: var(--clr-accent);
  line-height: 1.1;
  margin-bottom: 8px;
}

.latihan-hint {
  font-size: 13px;
  color: var(--clr-text-3);
  min-height: 20px;
}

.latihan-input-row {
  display: flex;
  gap: 10px;
  width: 100%;
}

.latihan-input {
  flex: 1;
  height: 44px;
  padding: 0 14px;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: var(--clr-surface);
  color: var(--clr-text-1);
  font-family: var(--font-body);
  font-size: 16px;
  outline: none;
  transition: border-color var(--transition);
}

.latihan-input:focus {
  border-color: var(--clr-accent);
}

.latihan-input.correct {
  border-color: #2da870;
  background: var(--clr-accent-light);
}

.latihan-input.wrong {
  border-color: #c0392b;
  background: #fdecea;
}

.latihan-feedback {
  font-size: 14px;
  font-weight: 500;
  min-height: 22px;
  text-align: center;
}

.latihan-feedback.ok {
  color: var(--clr-accent);
}

.latihan-feedback.err {
  color: #c0392b;
}

.latihan-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 14px;
  color: var(--clr-text-2);
}

.latihan-stats strong {
  color: var(--clr-text-1);
}

/* ── Kuis ── */
.kuis-wrap {
  max-width: 560px;
  margin: 0 auto;
}

.kuis-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
}

.kuis-icon {
  font-family: var(--font-sunda);
  font-size: 72px;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: 4px;
}

.kuis-state-title {
  font-size: 22px;
  font-weight: 600;
}

.kuis-state-body {
  font-size: 15px;
  color: var(--clr-text-2);
  max-width: 380px;
  line-height: 1.6;
}

.kuis-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--clr-surface-2);
  border-radius: 100px;
  overflow: hidden;
  margin-top: 32px;
  margin-bottom: 12px;
}

.kuis-progress-fill {
  height: 100%;
  background: var(--clr-accent);
  border-radius: 100px;
  transition: width 0.3s ease;
}

.kuis-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  font-size: 13px;
  color: var(--clr-text-2);
  margin-bottom: 4px;
}

.kuis-skor-live strong {
  color: var(--clr-text-1);
}

.kuis-soal {
  font-family: var(--font-sunda);
  font-size: 72px;
  color: var(--clr-accent);
  line-height: 1.2;
  margin: 16px 0;
  width: 100%;
  text-align: center;
}

.kuis-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
  margin-bottom: 12px;
}

.kuis-option {
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--clr-border);
  background: var(--clr-surface);
  color: var(--clr-text-1);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition);
}

.kuis-option:hover:not(:disabled) {
  border-color: var(--clr-accent);
  background: var(--clr-accent-light);
  color: var(--clr-accent);
}

.kuis-option.correct {
  border-color: #2da870;
  background: #e6f4ed;
  color: #1b6f4a;
}

.kuis-option.wrong {
  border-color: #c0392b;
  background: #fdecea;
  color: #c0392b;
}

.kuis-option:disabled {
  cursor: not-allowed;
}

.kuis-feedback {
  font-size: 15px;
  font-weight: 500;
  min-height: 24px;
}

.kuis-feedback.ok {
  color: var(--clr-accent);
}

.kuis-feedback.err {
  color: #c0392b;
}

.kuis-score-circle {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: var(--clr-accent-light);
  border: 3px solid var(--clr-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 600;
  color: var(--clr-accent);
  margin-bottom: 8px;
}

.kuis-result-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
}

@media (max-width: 600px) {
  .tab-nav {
    width: 100%;
  }

  .tab-btn {
    flex: 1;
    justify-content: center;
    padding: 9px 10px;
  }

  .kartu-grid {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  }

  .kuis-options {
    grid-template-columns: 1fr;
  }

  .card-detail {
    padding: 32px 20px 24px;
  }
}

/* ── Tombol ke Translator ── */
.btn-translator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--clr-surface);
  color: var(--clr-accent);
  border: 1.5px solid var(--clr-accent);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-btn);
}

.btn-translator:hover {
  background: var(--clr-accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(27, 111, 74, 0.25);
}

.btn-translator .ti {
  font-size: 16px;
}