/* ===========================================================
   Grade Interativa — Eng. de Computação UFC
   v2: optativas livres, semestres dinâmicos, mover, compartilhar
   =========================================================== */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: 'Inter', sans-serif;
  background: #f0ede6;
  color: #333;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Header ---------- */
#header {
  text-align: center;
  padding: 24px 16px 12px;
}
#header h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.subtitulo {
  font-size: 0.8rem;
  color: #777;
  margin-top: 4px;
}

#info-container {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin: 16px auto 10px;
  padding: 12px 20px;
  max-width: 720px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid #ddd;
  flex-wrap: wrap;
}
.info-box { text-align: center; }
.info-label {
  display: block;
  font-size: 0.7rem;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.info-valor {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: #2a6b2a;
  margin-top: 2px;
}
#opt-info {
  color: #e67e22;
}
#opt-info.opt-atingida {
  color: #2a6b2a;
}

#controles {
  margin: 10px 0 6px;
  display: flex;
  gap: 10px;
  justify-content: center;
}
#btn-limpar {
  padding: 6px 16px;
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid #c0392b;
  background: #fff;
  color: #c0392b;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}
#btn-limpar:hover {
  background: #c0392b;
  color: #fff;
}
#btn-compartilhar {
  padding: 6px 16px;
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid #3498db;
  background: #fff;
  color: #3498db;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}
#btn-compartilhar:hover {
  background: #3498db;
  color: #fff;
}

/* ---------- Legenda ---------- */
#legenda {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
  font-size: 0.72rem;
  color: #666;
}
.leg-item { display: flex; align-items: center; gap: 4px; }
.leg-cor {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid #aaa;
}
.leg-concluida  { background: #b1fca4; }
.leg-prereq     { background: #ffdddd; border-color: #e74c3c; }
.leg-dep        { background: #ddffdd; border-color: #27ae60; }
.leg-liberada   { background: #e7f3ff; border-color: #3498db; }
.leg-optativa   { background: #fff3e0; border-color: #e67e22; }
.leg-aviso      { background: #fff8e1; border-color: #f39c12; }

/* ---------- Grid de Semestres ---------- */
#grade-container {
  display: flex;
  gap: 6px;
  padding: 16px 10px 20px;
  overflow-x: auto;
  min-height: calc(100vh - 300px);
  align-items: flex-start;
}

.periodo-coluna {
  min-width: 138px;
  flex: 1;
}

.periodo-header {
  text-align: center;
  padding: 8px 4px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: 1px solid #999;
  border-radius: 5px;
  margin-bottom: 6px;
  background: #e7ede6;
  cursor: default;
  transition: background 0.3s;
  user-select: none;
  position: relative;
}
.periodo-ch {
  display: block;
  font-size: 0.68rem;
  font-weight: 400;
  color: #888;
  text-transform: none;
  letter-spacing: 0;
  margin-top: 1px;
}
.periodo-header.completo {
  background: #fcfab0;
}

/* Botão ✕ remover período extra */
.btn-remover-periodo {
  position: absolute;
  top: 2px;
  right: 4px;
  background: none;
  border: none;
  font-size: 0.65rem;
  color: #c0392b;
  cursor: pointer;
  font-family: inherit;
  line-height: 1;
  padding: 2px;
}
.btn-remover-periodo:hover { color: #e74c3c; }

/* ---------- Cards de Disciplina ---------- */
.disciplina {
  position: relative;
  text-align: center;
  padding: 10px 6px;
  margin-bottom: 6px;
  border: 1px solid #333;
  border-radius: 5px;
  cursor: grab;
  user-select: none;
  transition: background 0.25s, border-color 0.25s, transform 0.15s, box-shadow 0.25s;
  background: #fff;
}
.disciplina:active { cursor: grabbing; }
.disciplina:hover {
  transform: scale(1.03);
}

/* --- Drag and Drop --- */
.disciplina.dragging {
  opacity: 0.4;
  transform: scale(0.95);
}
.periodo-coluna.drop-zone {
  border: 2px dashed #3498db;
  border-radius: 8px;
  background: rgba(52, 152, 219, 0.03);
  transition: background 0.2s, border-color 0.2s;
}
.periodo-coluna.drop-hover {
  border-color: #27ae60 !important;
  background: rgba(39, 174, 96, 0.08) !important;
}

.disc-nome {
  display: block;
  font-size: 0.72rem;
  line-height: 1.25;
  font-weight: 600;
}
.disc-ch {
  display: block;
  margin-top: 3px;
  font-size: 0.68rem;
  color: #666;
  font-weight: 400;
}

/* Badge de período sugerido */
.badge-sugerido {
  display: inline;
  font-size: 0.6rem;
  color: #8e44ad;
  font-weight: 400;
  margin-left: 3px;
}

/* Botão mover ⇄ */
.btn-mover {
  position: absolute;
  top: 3px;
  right: 4px;
  font-size: 0.6rem;
  color: #888;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  padding: 1px 3px;
  border-radius: 3px;
  opacity: 0;
  transition: opacity 0.2s, color 0.2s;
}
.disciplina:hover .btn-mover { opacity: 1; }
.btn-mover:hover { color: #3498db; background: rgba(52,152,219,0.1); }

/* Botão remover optativa ✕ */
.btn-remover-opt {
  position: absolute;
  top: 3px;
  left: 4px;
  font-size: 0.6rem;
  color: #c0392b;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  padding: 1px 3px;
  border-radius: 3px;
  opacity: 0;
  transition: opacity 0.2s;
}
.disciplina:hover .btn-remover-opt { opacity: 1; }
.btn-remover-opt:hover { background: rgba(192,57,43,0.1); }

/* --- Estados visuais --- */

/* Concluída */
.disciplina.concluida {
  background: #b1fca4;
}
.disciplina.concluida:hover {
  background: #77ef85;
  border-color: #003305;
}

/* Hover em incompleta */
.disciplina:not(.concluida):hover {
  background: #ffeded;
  border-color: #870404;
  color: #870404;
}

/* Liberada (prereqs atendidos) */
.disciplina.liberada {
  border-color: #3498db;
  border-width: 2px;
  background: #e7f3ff;
}

/* Aviso de prereq fora de ordem */
.disciplina.aviso-prereq {
  border-color: #f39c12 !important;
  border-width: 2px;
  background: #fff8e1;
}

/* Highlight de pré-requisito ao hover */
.disciplina.highlight-prereq {
  background: #ffdddd !important;
  border-color: #e74c3c !important;
  box-shadow: 0 0 6px rgba(231, 76, 60, 0.4);
}

/* Highlight de dependente ao hover */
.disciplina.highlight-dep {
  background: #ddffdd !important;
  border-color: #27ae60 !important;
  box-shadow: 0 0 6px rgba(39, 174, 96, 0.4);
}

/* --- Card de optativa --- */
.disciplina.optativa-slot {
  border-style: dashed;
  border-color: #e67e22;
  background: #fff3e0;
}
.disciplina.optativa-slot:hover {
  background: #ffe0b2;
  border-color: #d35400;
  color: #333;
}
.disciplina.optativa-slot.concluida {
  border-style: solid;
  border-color: #333;
  background: #b1fca4;
}
.disciplina.optativa-slot .disc-nome {
  font-style: normal;
}

/* --- Botão + Optativa em cada semestre --- */
.btn-add-opt {
  text-align: center;
  padding: 6px 4px;
  margin-top: 4px;
  font-size: 0.7rem;
  color: #e67e22;
  border: 1px dashed #e67e22;
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s, color 0.2s;
  background: transparent;
}
.btn-add-opt:hover {
  background: #fff3e0;
  color: #d35400;
}

/* --- Botão + Período --- */
.btn-add-periodo {
  min-width: 50px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 10px;
  border: 2px dashed #3498db;
  border-radius: 8px;
  cursor: pointer;
  color: #3498db;
  font-size: 1.5rem;
  transition: background 0.2s, color 0.2s;
  user-select: none;
  align-self: stretch;
}
.btn-add-periodo:hover {
  background: #e7f3ff;
  color: #2980b9;
}
.btn-add-label {
  font-size: 0.68rem;
  margin-top: 4px;
  font-weight: 600;
}

/* ---------- Seletor de Período (mini-dropdown) ---------- */
.seletor-periodo {
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translate(-50%, 100%);
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  z-index: 500;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  max-width: 200px;
  justify-content: center;
}
.seletor-periodo button {
  width: 28px;
  height: 26px;
  font-size: 0.68rem;
  font-family: inherit;
  font-weight: 600;
  border: 1px solid #ddd;
  border-radius: 4px;
  background: #f9f9f9;
  cursor: pointer;
  transition: background 0.15s;
  color: #333;
}
.seletor-periodo button:hover {
  background: #e7f3ff;
  border-color: #3498db;
}
.seletor-periodo button.sel-atual {
  background: #3498db;
  color: #fff;
  border-color: #3498db;
}
.seletor-periodo button.sel-aviso {
  background: #fff8e1;
  border-color: #f39c12;
  color: #e67e22;
}
.seletor-periodo button.sel-reset {
  background: #f0e6fa;
  border-color: #8e44ad;
  color: #8e44ad;
}
.seletor-periodo button.sel-reset:hover {
  background: #e0d0f0;
}

/* ---------- Modal de Optativa ---------- */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
#modal-overlay.hidden { display: none; }

#modal {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  width: 420px;
  max-width: 92vw;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
}
#modal h2 {
  font-size: 1rem;
  margin-bottom: 12px;
}
#modal-busca {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-family: inherit;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-bottom: 10px;
}
#modal-busca:focus { outline: none; border-color: #3498db; }

#modal-lista {
  list-style: none;
  overflow-y: auto;
  flex: 1;
  max-height: 50vh;
}
#modal-lista li {
  padding: 8px 10px;
  font-size: 0.8rem;
  border-bottom: 1px solid #eee;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.15s;
}
#modal-lista li:hover {
  background: #e7f3ff;
}
#modal-lista li .opt-ch {
  float: right;
  color: #888;
  font-size: 0.72rem;
}
#modal-lista li.disabled {
  opacity: 0.4;
  pointer-events: none;
}

#modal-fechar {
  margin-top: 12px;
  padding: 8px;
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  border: 1px solid #ccc;
  border-radius: 6px;
  background: #f5f5f5;
  transition: background 0.2s;
}
#modal-fechar:hover { background: #e0e0e0; }

/* ---------- Modal de Confirmação ---------- */
#confirmar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
}
#confirmar-overlay.hidden { display: none; }

#confirmar-modal {
  background: #fff;
  border-radius: 12px;
  padding: 28px 32px;
  width: 380px;
  max-width: 90vw;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
}
#confirmar-modal h2 {
  font-size: 1.05rem;
  margin-bottom: 12px;
  color: #c0392b;
}
#confirmar-modal p {
  font-size: 0.85rem;
  color: #555;
  line-height: 1.5;
  margin-bottom: 20px;
}
.confirmar-botoes {
  display: flex;
  gap: 12px;
  justify-content: center;
}
#confirmar-sim {
  padding: 8px 20px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid #c0392b;
  background: #c0392b;
  color: #fff;
  border-radius: 6px;
  transition: background 0.2s;
}
#confirmar-sim:hover { background: #a93226; }

#confirmar-nao {
  padding: 8px 20px;
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  border: 1px solid #ccc;
  background: #f5f5f5;
  color: #333;
  border-radius: 6px;
  transition: background 0.2s;
}
#confirmar-nao:hover { background: #e0e0e0; }

/* ---------- Toast ---------- */
#toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #333;
  color: #fff;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-family: inherit;
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
  z-index: 2000;
  pointer-events: none;
}
#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Atividades Obrigatórias ---------- */
#atividades-container {
  max-width: 900px;
  margin: 0 auto 20px;
  padding: 0 16px;
  text-align: center;
}
#atividades-container h2 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.ativ-subtitulo {
  font-size: 0.72rem;
  color: #888;
  margin-bottom: 14px;
}
#atividades-cards {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.atividade-card {
  flex: 1;
  min-width: 260px;
  max-width: 400px;
  padding: 16px 20px;
  border: 2px solid #8e44ad;
  border-radius: 8px;
  background: #faf5ff;
  cursor: pointer;
  user-select: none;
  text-align: center;
  transition: background 0.25s, transform 0.15s, box-shadow 0.25s;
}
.atividade-card:hover {
  transform: scale(1.02);
  background: #f0e6fa;
}
.atividade-card.concluida {
  background: #b1fca4;
  border-color: #27ae60;
}
.atividade-card.concluida:hover {
  background: #77ef85;
}
.atividade-card .ativ-nome {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.atividade-card .ativ-ch {
  display: block;
  font-size: 0.78rem;
  color: #666;
  margin-bottom: 6px;
}
.atividade-card .ativ-desc {
  display: block;
  font-size: 0.68rem;
  color: #999;
  line-height: 1.4;
}

/* ---------- Footer ---------- */
footer {
  text-align: center;
  padding: 16px;
  font-size: 0.72rem;
  color: #999;
}

/* ---------- Responsiveness ---------- */
@media (max-width: 1000px) {
  #grade-container {
    flex-wrap: nowrap;
  }
  .periodo-coluna {
    min-width: 130px;
  }
}
@media (max-width: 600px) {
  #info-container { flex-direction: column; gap: 10px; }
  #header h1 { font-size: 1.1rem; }
}

/* ---------- Print ---------- */
@media print {
  #header, #controles, #legenda, footer, .btn-add-opt, .btn-add-periodo, .btn-mover, .btn-remover-opt { display: none; }
  #grade-container { display: flex; flex-wrap: nowrap; gap: 4px; }
  .disciplina { font-size: 7pt; padding: 4px; }
}