/* ============================================
   LuMED - Página de Aulas Gravadas
   ============================================ */

/* Container principal (página separada) */
.aulas-container {
  min-height: 100vh;
  padding-top: 80px;
  background: var(--bg-page);
}

/* Seção de aulas (dentro do index.html) */
.aulas-section {
  padding-top: 80px;
  min-height: 100vh;
  background: var(--bg-page);
}

.aulas-container-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.aulas-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 20px;
}

/* Header da página */
.aulas-header {
  margin-bottom: 30px;
}

.aulas-header h1 {
  font-size: 28px;
  color: var(--text-dark);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.aulas-header h1 i {
  color: var(--primary);
}

.aulas-header p {
  color: #64748b;
  font-size: 15px;
}

/* Aula ao vivo banner */
.aula-ao-vivo-banner {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  border-radius: var(--radius);
  padding: 20px 25px;
  margin-bottom: 25px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
  box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3);
  animation: pulse-banner 2s infinite;
}

@keyframes pulse-banner {
  0%, 100% { box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3); }
  50% { box-shadow: 0 4px 30px rgba(220, 38, 38, 0.5); }
}

.ao-vivo-info {
  display: flex;
  align-items: center;
  gap: 15px;
}

.ao-vivo-dot {
  width: 12px;
  height: 12px;
  background: white;
  border-radius: 50%;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.ao-vivo-texto h3 {
  color: white;
  font-size: 16px;
  margin-bottom: 2px;
}

.ao-vivo-texto span {
  font-size: 13px;
  opacity: 0.9;
}

.btn-assistir-ao-vivo {
  padding: 12px 24px;
  background: white;
  color: #dc2626;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.btn-assistir-ao-vivo:hover {
  transform: scale(1.05);
}

/* Filtros */
.aulas-filtros {
  display: flex;
  gap: 15px;
  margin-bottom: 25px;
  flex-wrap: wrap;
}

.filtro-select {
  padding: 12px 40px 12px 16px;
  border: 2px solid #e2e8f0;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  background: white;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%237e22ce' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: all 0.2s;
}

.filtro-select:focus {
  outline: none;
  border-color: var(--primary);
}

.busca-aulas {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.busca-aulas input {
  width: 100%;
  padding: 12px 16px 12px 44px;
  border: 2px solid #e2e8f0;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s;
}

.busca-aulas input:focus {
  outline: none;
  border-color: var(--primary);
}

.busca-aulas i {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
}

/* Grid de aulas */
.aulas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

/* Card de aula */
.aula-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all 0.3s;
}

.aula-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.aula-thumbnail {
  position: relative;
  height: 180px;
  background: linear-gradient(135deg, #064e3b, #047857);
  display: flex;
  align-items: center;
  justify-content: center;
}

.aula-thumbnail-icon {
  font-size: 50px;
  color: rgba(255, 255, 255, 0.3);
}

.aula-duracao {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.aula-materia-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  color: white;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.aula-card-body {
  padding: 20px;
}

.aula-card-materia {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.aula-card-tema {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.3;
}

.aula-card-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 13px;
  color: #64748b;
  margin-bottom: 15px;
}

.aula-card-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.btn-assistir {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
}

.btn-assistir:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

/* Estado vazio */
.aulas-vazio {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: #94a3b8;
}

.aulas-vazio i {
  font-size: 60px;
  margin-bottom: 15px;
  opacity: 0.5;
}

.aulas-vazio h3 {
  color: #64748b;
  margin-bottom: 8px;
}

/* Estado AO VIVO */
.aula-thumbnail.ao-vivo {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  animation: pulse-ao-vivo 2s infinite;
}

@keyframes pulse-ao-vivo {
  0%, 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4); }
  50% { box-shadow: 0 0 0 10px rgba(220, 38, 38, 0); }
}

.aula-ao-vivo-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: white;
  color: #dc2626;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  animation: pulse 1.5s infinite;
}

.dot-ao-vivo {
  width: 8px;
  height: 8px;
  background: #dc2626;
  border-radius: 50%;
  animation: blink 1s infinite;
}

.meta-ao-vivo {
  color: #dc2626 !important;
  font-weight: 600;
}

.btn-ao-vivo {
  background: linear-gradient(135deg, #dc2626, #ef4444) !important;
  animation: pulse-btn 2s infinite;
}

@keyframes pulse-btn {
  0%, 100% { box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3); }
  50% { box-shadow: 0 4px 25px rgba(220, 38, 38, 0.5); }
}

.btn-ao-vivo:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4) !important;
}

/* Estado processando */
.aula-thumbnail.processando {
  background: linear-gradient(135deg, #64748b, #94a3b8);
}

.aula-thumbnail.processando .aula-thumbnail-icon {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.aula-processando {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: #fbbf24;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.btn-aguardando {
  background: linear-gradient(135deg, #94a3b8, #64748b) !important;
  cursor: not-allowed;
}

.btn-aguardando:hover {
  transform: none !important;
  box-shadow: none !important;
}

/* Cores das matérias */
.materia-biologia { background: linear-gradient(135deg, #84cc16, #65a30d); }
.materia-quimica { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.materia-fisica { background: linear-gradient(135deg, #f59e0b, #d97706); }
.materia-matematica { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.materia-portugues { background: linear-gradient(135deg, #ef4444, #dc2626); }
.materia-historia { background: linear-gradient(135deg, #f59e0b, #d97706); }
.materia-geografia { background: linear-gradient(135deg, #10b981, #059669); }
.materia-filosofia { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.materia-sociologia { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.materia-ingles { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.materia-redacao { background: linear-gradient(135deg, #f97316, #ea580c); }

/* Modal de vídeo */
.modal-video {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.modal-video.show {
  opacity: 1;
  visibility: visible;
}

.modal-video-content {
  width: 90%;
  max-width: 900px;
  background: black;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.modal-video-close {
  position: absolute;
  top: -50px;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 30px;
  cursor: pointer;
  transition: all 0.2s;
}

.modal-video-close:hover {
  transform: scale(1.1);
}

.video-player {
  width: 100%;
  aspect-ratio: 16/9;
}

.modal-video-info {
  padding: 20px;
  background: #1a1a1a;
  color: white;
}

.modal-video-info h3 {
  color: white;
  margin-bottom: 5px;
}

.modal-video-info p {
  color: #94a3b8;
  font-size: 14px;
}

/* Loading */
.loading-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  grid-column: 1 / -1;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #e2e8f0;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================
   SEÇÕES DE AULAS POR DIA DA SEMANA
   ============================================ */

/* ============================================
   ACCORDION DE SEMANAS
   ============================================ */

.semana-accordion {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
  overflow: hidden;
  border: 2px solid #e2e8f0;
  transition: all 0.3s ease;
}

.semana-accordion.expandida {
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(126, 34, 206, 0.15);
}

.semana-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: white;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.semana-header:hover {
  background: #f8fafc;
}

.semana-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.semana-header-info > i {
  font-size: 22px;
  color: var(--primary);
}

.semana-label {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
}

.semana-badge-atual {
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--primary), #ec4899);
  color: white;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.semana-chevron {
  font-size: 18px;
  color: #94a3b8;
  transition: transform 0.3s ease;
}

.semana-accordion.expandida .semana-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.semana-content {
  border-top: 1px solid #e2e8f0;
  background: #f8fafc;
  padding: 20px;
}

/* Seção de cada dia dentro do accordion */
.dia-semana-section {
  background: white;
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.dia-semana-section:last-child {
  margin-bottom: 0;
}

.dia-semana-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: linear-gradient(135deg, rgba(126, 34, 206, 0.05), rgba(236, 72, 153, 0.03));
  border-bottom: 1px solid #f1f5f9;
}

.dia-semana-nome {
  font-weight: 700;
  color: var(--text-dark);
  font-size: 15px;
}

.dia-semana-data {
  font-size: 13px;
  color: #64748b;
}

.dia-semana-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 16px;
}

.secao-dia-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 20px;
  background: #f8fafc;
}

/* ============================================
   CARDS GRANDES COM PLAYER DE VÍDEO
   ============================================ */

.turma-card-grande {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.turma-card-grande.clickable {
  cursor: pointer;
}

.turma-card-grande.clickable:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  border-color: var(--turma-cor);
}

/* Área do player de vídeo */
.turma-video-area {
  position: relative;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1e293b, #334155);
  display: flex;
  align-items: center;
  justify-content: center;
}

.turma-video-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.turma-video-placeholder i {
  font-size: 48px;
  color: rgba(255,255,255,0.3);
  transition: all 0.3s ease;
}

/* Estados do placeholder */
.turma-card-grande.em-breve .turma-video-area {
  background: linear-gradient(135deg, #475569, #64748b);
}

.turma-card-grande.em-breve .turma-video-placeholder i {
  color: rgba(255,255,255,0.2);
}

.turma-card-grande.tem-aula .turma-video-area {
  background: linear-gradient(135deg, var(--turma-cor), color-mix(in srgb, var(--turma-cor) 70%, black));
}

.turma-card-grande.tem-aula .turma-video-placeholder i {
  color: rgba(255,255,255,0.9);
  font-size: 56px;
}

.turma-card-grande.clickable:hover .turma-video-placeholder i {
  transform: scale(1.15);
  color: white;
}

.turma-card-grande.processando .turma-video-area {
  background: linear-gradient(135deg, #64748b, #94a3b8);
}

.turma-card-grande.processando .turma-video-placeholder i {
  color: rgba(255,255,255,0.5);
  animation: spin 1.5s linear infinite;
}

.turma-card-grande.ao-vivo .turma-video-area {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  animation: pulse-bg 2s infinite;
}

@keyframes pulse-bg {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

.turma-card-grande.ao-vivo .turma-video-placeholder i {
  color: white;
  animation: pulse-icon 1s infinite;
}

@keyframes pulse-icon {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Badges no player */
.turma-badge-container {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.turma-nome-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  color: white;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.turma-duracao-badge {
  background: rgba(0,0,0,0.7);
  color: white;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.turma-ao-vivo-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: white;
  color: #dc2626;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dot-pulse {
  width: 8px;
  height: 8px;
  background: #dc2626;
  border-radius: 50%;
  animation: blink 1s infinite;
}

/* Corpo do card */
.turma-card-body {
  padding: 16px;
}

.turma-tema {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 0 0 12px 0;
  line-height: 1.3;
  min-height: 40px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.turma-card-grande.em-breve .turma-tema {
  color: #94a3b8;
  font-style: italic;
}

.turma-btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.turma-btn.em-breve {
  background: #e2e8f0;
  color: #94a3b8;
  cursor: not-allowed;
}

.turma-btn.tem-aula {
  background: linear-gradient(135deg, var(--turma-cor), color-mix(in srgb, var(--turma-cor) 80%, black));
  color: white;
}

.turma-btn.tem-aula:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.turma-btn.processando {
  background: #fef3c7;
  color: #d97706;
  cursor: not-allowed;
}

.turma-btn.processando i {
  animation: spin 1s linear infinite;
}

.turma-btn.ao-vivo {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  color: white;
  animation: pulse-btn-live 2s infinite;
}

@keyframes pulse-btn-live {
  0%, 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(220, 38, 38, 0); }
}

/* Responsive - Accordions e Cards */
@media (max-width: 1200px) {
  .dia-semana-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 700px) {
  .semana-header {
    padding: 14px 16px;
  }

  .semana-label {
    font-size: 14px;
  }

  .semana-content {
    padding: 12px;
  }

  .dia-semana-header {
    padding: 12px 16px;
  }

  .dia-semana-cards {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 12px;
  }

  .turma-video-placeholder i {
    font-size: 40px;
  }

  .turma-nome-badge {
    font-size: 10px;
    padding: 5px 10px;
  }

  .turma-tema {
    font-size: 14px;
    min-height: auto;
  }

  .turma-btn {
    padding: 10px;
    font-size: 12px;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .aulas-content {
    padding: 20px 15px;
  }

  .aulas-header h1 {
    font-size: 22px;
  }

  .aula-ao-vivo-banner {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }

  .aulas-filtros {
    flex-direction: column;
  }

  .filtro-select,
  .busca-aulas {
    width: 100%;
  }

  .aulas-grid {
    grid-template-columns: 1fr;
  }
}