/* ==========================================================
   LEARN TECH - ATIVIDADES (trilha da turma, detalhe, post-its e edição)
   ========================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(#1b1033, #0a0d18);
  color: #ffffff;
  min-height: 100vh;
  display: flex;
  overflow-x: auto;
}

.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* ==========================================================
   HEADER / NAVBAR
   ========================================================== */

header, header.main-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 40px;
  position: relative;
  z-index: 50;
}

nav.nav-links, nav.header-nav {
  display: flex;
  gap: 46px;
}

nav.nav-links a, nav.header-nav a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.2s ease, transform 0.2s ease;
}

nav.nav-links a:hover, nav.header-nav a:hover,
nav.nav-links a.active, nav.header-nav a.active {
  color: #38bdf8;
  transform: scale(1.05);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}

/* BOTÃO MODO FOCO */
.btn-modo-foco {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #ffffff;
  padding: 5px 16px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-modo-foco:hover,
body.modo-foco-ativo .btn-modo-foco {
  background-color: #2b6ce6;
  border-color: #2b6ce6;
  color: #ffffff;
}

.header-icon-btn {
  background: transparent;
  border: none;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  position: relative;
}

.header-icon-btn svg {
  width: 27px;
  height: 27px;
  stroke: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.header-icon-btn:hover svg {
  transform: scale(1.08);
  opacity: 0.85;
}

/* ==========================================================
   ISOLAMENTO DO MODO FOCO
   ========================================================== */

body.modo-foco-ativo aside.sidebar,
body.modo-foco-ativo .sidebar-backdrop,
body.modo-foco-ativo .mobile-menu-trigger,
body.modo-foco-ativo nav.nav-links,
body.modo-foco-ativo nav.header-nav,
body.modo-foco-ativo #notification-button,
body.modo-foco-ativo .footer {
  display: none !important;
}

body.modo-foco-ativo .main-wrapper {
  margin-left: 0 !important;
  width: 100% !important;
}

body.modo-foco-ativo header {
  justify-content: flex-end;
  gap: 14px;
  padding: 16px 48px 0;
}

/* ==========================================================
   CONTAINER PRINCIPAL
   ========================================================== */

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 60px 60px;
  width: 100%;
}

.page-title, .section-title {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 26px;
  text-align: center;
}

.accent-blue { color: #38bdf8; }
.accent-green { color: #34d399; }

/* ==========================================================
   TELA 1: BANNER DE PROGRESSO E ATIVIDADES
   ========================================================== */

.turma-header-banner, .progress-capsule {
  width: 100%;
  max-width: 660px;
  background-color: #272c43;
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  border-radius: 45px;
  padding: 14px 34px 18px;
  margin-bottom: 28px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transition: transform 0.2s;
}

.turma-header-banner:hover, .progress-capsule:hover {
  transform: scale(1.02);
}

.turma-banner-title, .capsule-title {
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.progresso-info, .capsule-meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #ffffff;
  margin-bottom: 8px;
}

.bar-bg, .progress-track {
  width: 100%;
  height: 11px;
  background-color: #151828;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  overflow: hidden;
  padding: 1px;
}

.bar-fill, .progress-fill {
  height: 100%;
  background: #25e26b;
  border-radius: 20px;
  box-shadow: 0 0 10px #25e26b;
  transition: width 0.4s ease;
}

.actions-row-prof {
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: 900px;
  margin-bottom: 24px;
}

.btn-round-action, .btn-round-blue {
  background-color: #5c93d9;
  color: #0b091a;
  border: none;
  padding: 10px 28px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s;
}

.btn-round-action:hover, .btn-round-blue:hover {
  background-color: #72a6eb;
  transform: translateY(-2px);
}

.atividades-grid, .activities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  width: 100%;
  max-width: 1060px;
}

.activity-card {
  border-radius: 14px;
  padding: 14px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s, background-color 0.2s;
}

.activity-card:hover {
  transform: scale(1.03);
}

.activity-card.card-nao-iniciado {
  background-color: #10121d;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}

.activity-card.card-concluido {
  background-color: #139f69;
  border: none;
}

.activity-card.card-andamento {
  background-color: #4a6fdc;
  border: none;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-meta-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.classroom-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: url('https://images.unsplash.com/photo-1580582932707-520aed937b7b?w=150&auto=format&fit=crop&q=80') center/cover;
  border: 2px solid rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
}

.card-texts h4 {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  word-break: break-word;
}

.card-texts p {
  font-size: 10.5px;
  text-transform: capitalize;
  margin-top: 3px;
  opacity: 0.9;
}

.btn-card-dots {
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}

.btn-ver-atividade {
  width: 100%;
  height: 34px;
  border-radius: 5px;
  font-size: 11.5px;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #2b6ce6;
  border: none;
  color: #ffffff;
  transition: background-color 0.2s, color 0.2s, transform 0.2s;
}

.card-andamento .btn-ver-atividade {
  background-color: #2b55b8;
}

.btn-ver-atividade:hover {
  background-color: #ffffff !important;
  color: #000000 !important;
  transform: scale(1.02);
}

/* ==========================================================
   TELA 2: ATIVIDADE SELECIONADA
   ========================================================== */

.atividade-container {
  display: flex;
  gap: 40px;
  width: 100%;
  max-width: 1200px;
  align-items: flex-start;
}

.atividade-detalhes {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.atividade-nome {
  color: #34d399;
  font-size: 18px;
  font-weight: 900;
  text-transform: uppercase;
}

.section-label {
  font-size: 12px;
  font-weight: 800;
  color: #ffffff;
  text-transform: uppercase;
}

.atividade-desc-texto {
  font-size: 11px;
  line-height: 1.5;
  color: #cbd5e1;
}

/* CARDS DE CONTEÚDO E PRAZO */
.card-referencia, .card-prazo, .boxed-panel {
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  padding: 18px 140px 18px 20px; /* Padding-right amplo para o botão de download e os três pontos */
  display: flex;
  align-items: center;
  background-color: transparent;
  width: 100%;
  max-width: 580px;
  position: relative;
}

.card-referencia {
  justify-content: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.card-ref-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.card-ref-content span {
  font-size: 11px;
  font-weight: 800;
  color: #ffffff;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* BOTÃO DE ABRIR/BAIXAR O FICHEIRO ANEXADO */
.btn-baixar-ref {
  position: absolute;
  right: 48px;
  top: 50%;
  transform: translateY(-50%);
  background-color: #38bdf8;
  color: #0b091a;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 900;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 0.2s, transform 0.2s;
  cursor: pointer;
}

.btn-baixar-ref:hover {
  background-color: #7dd3fc;
  transform: translateY(-50%) scale(1.04);
}

.card-prazo {
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 18px 45px 22px 20px;
  margin-bottom: 12px;
}

.card-ref-icon svg {
  width: 36px;
  height: 36px;
  stroke: #ffffff;
  flex-shrink: 0;
}

.prazo-title {
  font-size: 11px;
  font-weight: 800;
  color: #ffffff;
  text-transform: uppercase;
}

.card-prazo p {
  font-size: 10px;
  color: #94a3b8;
  text-transform: uppercase;
}

/* POSICIONAMENTO FIXO DOS 3 PONTOS */
.card-referencia .btn-card-dots,
.card-prazo .btn-card-dots {
  position: absolute !important;
  top: 14px !important;
  right: 16px !important;
  left: auto !important;
  bottom: auto !important;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  z-index: 5;
}

.card-referencia .btn-card-dots:hover,
.card-prazo .btn-card-dots:hover {
  opacity: 0.8;
}

/* STATUS PENDENTE / CONCLUÍDO */
.status-badge-pendente, 
.status-badge-concluido,
.badge-pendente {
  position: absolute !important;
  right: 16px !important;
  bottom: 14px !important;
  top: auto !important;
  left: auto !important;
  background-color: #cbd5e1;
  color: #0b091a;
  font-size: 9.5px;
  font-weight: 900;
  padding: 4px 10px;
  border-radius: 12px;
  text-transform: uppercase;
  z-index: 5;
}

.status-badge-concluido {
  background-color: #25e26b;
}

/* CONTAINER DOS BOTÕES COM CENTRALIZAÇÃO E ESPAÇAMENTO AJUSTADOS */
.detalhes-botoes-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-top: 24px;
  width: 100%;
  max-width: 580px;
}

.btn-abrir-envio {
  background-color: #5c93d9;
  color: #0b091a;
  border: none;
  padding: 12px 36px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  align-self: center;
  transition: background-color 0.2s, transform 0.2s;
}

.btn-abrir-envio:hover {
  background-color: #72a6eb;
  transform: translateY(-2px);
}

.btn-voltar-trilha {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  color: #ffffff;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  align-self: flex-start;
  transition: border-color 0.2s, background-color 0.2s;
}

.btn-voltar-trilha:hover {
  border-color: #ffffff;
  background-color: rgba(255, 255, 255, 0.1);
}

/* ==========================================================
   PAINEL LATERAL DIREITO: ENVIO DE TAREFA
   ========================================================== */

.painel-envio-lateral, .right-sidebar-panel {
  width: 380px;
  border-left: 1.5px solid rgba(255, 255, 255, 0.25);
  padding: 0 0 20px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  flex-shrink: 0;
}

.painel-envio-header h3, .sidebar-block-title {
  font-size: 15px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  text-align: center;
  color: #ffffff;
}

.painel-envio-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.painel-envio-body label {
  font-size: 11px;
  font-weight: 800;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.painel-envio-body textarea {
  width: 100%;
  height: 180px;
  background-color: #0b0e1a;
  border: 1.5px solid rgba(255, 255, 255, 0.65);
  border-radius: 12px;
  padding: 14px;
  color: #ffffff;
  resize: vertical;
  outline: none;
  font-weight: 600;
  font-size: 12px;
}

.painel-envio-body textarea:focus {
  border-color: #38bdf8;
}

.file-upload-box {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-selecionar-arquivo {
  border: 1.5px solid rgba(255, 255, 255, 0.65);
  background: transparent;
  color: #ffffff;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-selecionar-arquivo:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

#nome-arquivo-selecionado, #edit-nome-arquivo-selecionado {
  font-size: 11px;
  color: #cbd5e1;
  word-break: break-word;
}

.btn-enviar-tarefa {
  background-color: #e2e8f0;
  border: none;
  color: #0f172a;
  width: 100%;
  height: 42px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
  margin-top: 8px;
}

.btn-enviar-tarefa:hover {
  background-color: #25e26b;
  color: #0b091a;
}

/* ==========================================================
   PAINEL LEARN BOOK & POST-ITS (MODO FOCO)
   ========================================================== */

.painel-learn-book-lateral {
  width: 360px;
  border-left: 1.5px solid rgba(255, 255, 255, 0.25);
  padding: 10px 24px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.learn-book-title {
  font-size: 18px;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
}

.learn-book-textbox { width: 100%; }

.learn-book-textbox textarea {
  width: 100%;
  height: 220px;
  background-color: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.65);
  border-radius: 12px;
  padding: 16px;
  color: #ffffff;
  resize: none;
  outline: none;
  font-size: 11px;
  font-weight: 800;
  text-align: center;
}

.postits-grid, .postits-container {
  display: flex;
  gap: 14px;
  width: 100%;
  justify-content: center;
  margin-top: 18px;
  flex-wrap: wrap;
}

.postit-item, .postit-thumb {
  background-color: #f7c948;
  color: #0b091a;
  width: 120px;
  height: 115px;
  border-radius: 2px;
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  box-shadow: 2px 4px 10px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s;
  clip-path: polygon(0 0, 100% 0, 100% 82%, 82% 100%, 0 100%);
}

.postit-item:hover, .postit-thumb:hover {
  transform: scale(1.04);
}

.postit-pin, .postit-striped-tape {
  position: absolute;
  top: -6px;
  width: 32px;
  height: 10px;
  background: repeating-linear-gradient(-45deg, #ffffff, #ffffff 3px, #1e293b 3px, #1e293b 6px);
  border-radius: 2px;
}

.postit-item span, .postit-thumb span {
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  word-break: break-word;
}

.learn-book-pen-icon, .pen-icon-box {
  margin-top: 18px;
  align-self: flex-end;
}

.learn-book-pen-icon svg, .pen-icon-box svg {
  width: 28px;
  height: 28px;
}

.postit-card-expanded, .postit-big-card {
  background-color: #f7c948;
  color: #0b091a;
  width: 100%;
  max-width: 580px;
  aspect-ratio: 1;
  min-height: 0;
  box-sizing: border-box;
  border-radius: 16px;
  padding: 30px;
  display: flex;
  align-items: stretch;
  justify-content: flex-start;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
}

#conteudo-postit-expandido {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.postit-big-card-text {
  width: 100%;
  min-height: 0;
  flex: 1;
  padding: 0;
  border: 0;
  outline: none;
  resize: none;
  background: transparent;
  color: #30270c;
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  text-transform: none;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ==========================================================
   TELA 3: FORMULÁRIO DE EDIÇÃO
   ========================================================== */

.edit-form-container, .edit-activity-form {
  width: 100%;
  max-width: 580px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0 auto;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

.form-group label {
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  letter-spacing: 0.5px;
}

.form-input, .edit-input-field,
.form-textarea, .edit-textarea-field {
  width: 100%;
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  padding: 10px 14px;
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  outline: none;
}

.form-textarea, .edit-textarea-field {
  min-height: 120px;
  resize: vertical;
}

select.form-input option, select.edit-input-field option {
  background: #1b1033;
  color: #ffffff;
}

.form-buttons-row {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 14px;
}

@media (max-width: 980px) {
  .atividades-grid, .activities-grid {
    grid-template-columns: 1fr;
  }
  .atividade-container {
    flex-direction: column;
  }
  .painel-envio-lateral, .painel-learn-book-lateral {
    width: 100%;
    border-left: none;
    border-top: 1.5px solid rgba(255, 255, 255, 0.25);
    padding-left: 0;
    padding-top: 20px;
  }
}

@media (max-width: 768px) {
  body {
    overflow-x: hidden;
  }

  .main-wrapper {
    min-width: 0;
  }

  header,
  header.main-header {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 16px;
  }

  nav.nav-links,
  nav.header-nav {
    display: none;
  }

  main {
    min-width: 0;
    padding: 18px 16px 40px;
  }

  .page-title,
  .section-title {
    font-size: 22px;
  }

  .turma-header-banner,
  .progress-capsule {
    border-radius: 24px;
    padding: 14px 20px 16px;
  }

  .atividade-container {
    min-width: 0;
    gap: 24px;
  }

  .painel-envio-lateral,
  .right-sidebar-panel,
  .painel-learn-book-lateral {
    min-width: 0;
    width: 100%;
    padding-right: 0;
    padding-left: 0;
  }

  .form-buttons-row {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .card-referencia {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
  }

  .card-referencia .btn-baixar-ref {
    position: static;
    transform: none;
    margin-left: auto;
  }

  .card-referencia .btn-baixar-ref:hover {
    transform: none;
  }

  .card-prazo {
    padding: 18px 14px;
  }

  #card-prazo-pontuacao .status-badge-pendente,
  #card-prazo-pontuacao .status-badge-concluido {
    position: static !important;
    align-self: flex-start;
  }

  .postit-card-expanded,
  .postit-big-card {
    padding: 18px;
  }

  .btn-round-action,
  .btn-round-blue,
  .btn-abrir-envio {
    max-width: 100%;
    padding-inline: 18px;
  }
}