/* ============================================================
   Insper Financial Analytics: Custom Styles
   ============================================================ */

/* Hero section for landing page */
.hero-banner {
  background: linear-gradient(135deg, #1a1a1a 0%, #3F3F3F 50%, #E50505 100%);
  color: #fff;
  padding: 3em 2em;
  border-radius: 0.8rem;
  margin-bottom: 2em;
  position: relative;
  overflow: hidden;
}

.hero-banner h1 {
  font-family: 'GT Ultra Fine', Georgia, serif;
  color: #fff !important;
  border-bottom: none;
  font-size: 2.8em;
  margin-bottom: 0.3em;
}

.hero-banner .subtitle {
  font-size: 1.3em;
  color: #DCDCDC;
  margin-bottom: 1em;
}

.hero-banner .badge-line {
  display: flex;
  gap: 0.8em;
  flex-wrap: wrap;
}

.hero-banner .badge-item {
  background: rgba(255,255,255,0.15);
  padding: 0.4em 1em;
  border-radius: 2em;
  font-size: 0.85em;
  backdrop-filter: blur(4px);
}

/* ============================================================
   Cronograma (assets/cronograma.ejs) e próximas sessões (assets/proximas.ejs)
   ============================================================ */
.crono {
  --c-aula: #E50505;
  --c-lab: #2a8c6e;
  --c-marco: #b8860b;
  --c-borda: #e6e6e6;
  --c-texto-suave: #6b6b6b;
  margin-top: 1rem;
}

.crono-resumo {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.crono-stat {
  background: #f7f7f7;
  border-radius: 0.6rem;
  padding: 0.7rem 0.9rem;
  display: flex;
  flex-direction: column;
}
.crono-stat[hidden] { display: none; }
.crono-stat-num { font-size: 1.6rem; font-weight: 700; line-height: 1.1; color: #1a1a1a; }
.crono-stat-label { font-size: 0.8rem; color: var(--c-texto-suave); text-transform: uppercase; letter-spacing: 0.04em; }
.crono-stat-proxima { background: #1a1a1a; color: #fff; }
.crono-stat-proxima .crono-stat-label { color: #DCDCDC; }
.crono-stat-txt { font-weight: 700; font-size: 1.05rem; margin-top: 0.15rem; }

.crono-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  position: sticky;
  top: 3.5rem;
  z-index: 5;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(4px);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--c-borda);
  margin-bottom: 0.5rem;
}
.crono-filtros, .crono-acoes { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.crono-chip, .crono-btn {
  border: 1px solid #cfcfcf;
  background: #fff;
  color: #3F3F3F;
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.85rem;
  line-height: 1.3;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.crono-chip:hover, .crono-btn:hover { border-color: #3F3F3F; }
.crono-chip.ativo { background: #1a1a1a; border-color: #1a1a1a; color: #fff; }
.crono-btn { border-radius: 0.4rem; }
.crono-btn[hidden] { display: none; }
.crono-chip:focus-visible, .crono-btn:focus-visible, .crono-link:focus-visible { outline: 2px solid var(--c-aula); outline-offset: 2px; }

.crono-mes { margin-top: 1.25rem; }
.crono-mes-titulo {
  font-family: 'GT Ultra Fine', Georgia, serif;
  font-size: 1.35rem;
  font-weight: 700;
  text-transform: capitalize;
  color: #1a1a1a;
  margin-bottom: 0.5rem;
}
.crono-mes-titulo span { color: #9a9a9a; font-weight: 400; }

.crono-lista { list-style: none; padding: 0; margin: 0; position: relative; }
.crono-lista::before {
  content: "";
  position: absolute;
  left: 2.25rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: var(--c-borda);
}
.crono-item {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.9rem;
  margin: 0 0 0.75rem 0;
  position: relative;
}
.crono-item[hidden], .crono-mes[hidden] { display: none; }

.crono-data {
  position: relative;
  z-index: 1;
  align-self: start;
  background: #fff;
  border: 2px solid var(--c-aula);
  border-radius: 0.6rem;
  text-align: center;
  padding: 0.35rem 0 0.3rem;
  width: 4.5rem;
}
.crono-dia { display: block; font-size: 1.5rem; font-weight: 700; line-height: 1; color: #1a1a1a; }
.crono-sem { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--c-texto-suave); }

.crono-card {
  background: #fff;
  border: 1px solid var(--c-borda);
  border-left: 4px solid var(--c-aula);
  border-radius: 0.6rem;
  padding: 0.8rem 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.15s;
}
.crono-card:hover { box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08); }

.crono-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.6rem;
  font-size: 0.82rem;
  color: var(--c-texto-suave);
}
.crono-badge {
  display: inline-block;
  border-radius: 0.3rem;
  padding: 0.1rem 0.45rem;
  font-weight: 700;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.crono-badge-tipo { background: #fde8e8; color: var(--c-aula); }
.crono-badge-modal { border: 1px solid #cfcfcf; color: #3F3F3F; }
.modal-presencial .crono-badge-modal { background: #1a1a1a; border-color: #1a1a1a; color: #fff; }
.crono-hora, .crono-quem { white-space: nowrap; }
.crono-status:empty { display: none; }
.crono-status {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.crono-titulo { font-size: 1.08rem; font-weight: 700; color: #1a1a1a; margin: 0.35rem 0 0.25rem; line-height: 1.3; }
.crono-desc { font-size: 0.92rem; margin: 0 0 0.4rem; color: #3F3F3F; }
.crono-links { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.5rem; }
.crono-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.82rem;
  text-decoration: none;
  background: #f4f4f4;
  color: #1a1a1a;
  border-radius: 0.35rem;
  padding: 0.2rem 0.55rem;
}
.crono-link:hover { background: #1a1a1a; color: #fff; }
.crono-link-slides { background: #fde8e8; color: var(--c-aula); }

/* Cores por tipo */
.tipo-lab .crono-data { border-color: var(--c-lab); }
.tipo-lab .crono-card { border-left-color: var(--c-lab); }
.tipo-lab .crono-badge-tipo { background: #e6f9f1; color: var(--c-lab); }
.marco .crono-data { border-color: var(--c-marco); }
.marco .crono-card { border-left-color: var(--c-marco); background: #fffbf0; }
.marco .crono-badge-tipo { background: #fff3cd; color: #8a6508; }

/* Estado no tempo */
.crono-item.passada .crono-card, .crono-item.passada .crono-data { opacity: 0.55; }
.crono-item.passada .crono-card:hover { opacity: 1; }
.crono-item.passada .crono-status { color: var(--c-texto-suave); }
.crono-item.proxima .crono-data, .crono-item.agora .crono-data { background: var(--c-aula); border-color: var(--c-aula); }
.crono-item.proxima.tipo-lab .crono-data, .crono-item.agora.tipo-lab .crono-data { background: var(--c-lab); border-color: var(--c-lab); }
.crono-item.proxima.marco .crono-data { background: var(--c-marco); border-color: var(--c-marco); }
.crono-item.proxima .crono-dia, .crono-item.proxima .crono-sem,
.crono-item.agora .crono-dia, .crono-item.agora .crono-sem { color: #fff; }
.crono-item.proxima .crono-card, .crono-item.agora .crono-card { box-shadow: 0 0 0 2px rgba(229, 5, 5, 0.18), 0 4px 14px rgba(0, 0, 0, 0.08); }
.crono-item.proxima .crono-status, .crono-item.agora .crono-status { color: var(--c-aula); }
.crono-item.pisca .crono-card { animation: crono-pisca 1.5s ease; }
@keyframes crono-pisca { 0%, 100% { background: #fff; } 30% { background: #fde8e8; } }

.crono-vazio { color: var(--c-texto-suave); font-style: italic; margin-top: 1rem; }
.crono-vazio[hidden] { display: none; }

@media (max-width: 576px) {
  .crono-item { grid-template-columns: 3.1rem minmax(0, 1fr); gap: 0.6rem; }
  .crono-data { width: 3.1rem; padding: 0.25rem 0; }
  .crono-dia { font-size: 1.2rem; }
  .crono-sem { font-size: 0.65rem; }
  .crono-lista::before { left: 1.55rem; }
  .crono-card { padding: 0.65rem 0.75rem; }
  .crono-titulo { font-size: 1rem; }
  .crono-desc { font-size: 0.88rem; }
  .crono-toolbar { position: static; }
  .crono-status { margin-left: 0; }
  .crono-acoes { width: 100%; }
  .crono-btn { flex: 1 1 auto; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  .crono-item.pisca .crono-card { animation: none; }
}

/* Próximas sessões (página inicial) */
.proximas-lista { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; gap: 0.6rem; }
.proximas-item[hidden], .proximas-fim[hidden] { display: none; }
.proximas-item a {
  display: flex;
  align-items: stretch;
  gap: 0.9rem;
  text-decoration: none;
  color: inherit;
  border: 1px solid #e6e6e6;
  border-left: 4px solid #E50505;
  border-radius: 0.6rem;
  padding: 0.6rem 0.9rem;
  background: #fff;
  transition: box-shadow 0.15s;
}
.proximas-item.tipo-lab a { border-left-color: #2a8c6e; }
.proximas-item.tipo-entrega a, .proximas-item.tipo-apresentacao a { border-left-color: #b8860b; }
.proximas-item a:hover { box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08); }
.proximas-data { display: flex; flex-direction: column; justify-content: center; min-width: 3.6rem; text-align: center; }
.proximas-dia { font-size: 1.5rem; font-weight: 700; line-height: 1; color: #1a1a1a; }
.proximas-mes { font-size: 0.7rem; text-transform: uppercase; color: #6b6b6b; letter-spacing: 0.04em; }
.proximas-corpo { display: flex; flex-direction: column; justify-content: center; min-width: 0; }
.proximas-meta { font-size: 0.78rem; color: #6b6b6b; text-transform: uppercase; letter-spacing: 0.03em; }
.proximas-titulo { font-weight: 700; color: #1a1a1a; }
.proximas-todas { font-weight: 600; text-decoration: none; }
.proximas-fim { font-style: italic; }

/* Marcador de bloco dentro das páginas de aula */
.bloco-aula {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 2.5rem 0 1rem;
  color: #6b6b6b;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.bloco-aula::before, .bloco-aula::after { content: ""; flex: 1; height: 1px; background: #DCDCDC; }

/* Progress indicator */
.progress-section {
  display: flex;
  gap: 0.3em;
  margin: 1.5em 0;
}

.progress-dot {
  width: 2em;
  height: 0.4em;
  border-radius: 0.2em;
  background: #DCDCDC;
}

.progress-dot.done {
  background: #E50505;
}

.progress-dot.current {
  background: #FFCC00;
}

/* Interactive tabs for R/Python */
.tab-content {
  border: 1px solid #DCDCDC;
  border-top: none;
  border-radius: 0 0 0.5rem 0.5rem;
  padding: 1em;
}

/* Diagram containers */
.diagram-container {
  background: #f8f9fa;
  border-radius: 0.5rem;
  padding: 1.5em;
  margin: 1.5em 0;
  text-align: center;
}

/* Key formula highlight */
.formula-highlight {
  background: linear-gradient(135deg, #f8f9fa, #fff);
  border: 1px solid #DCDCDC;
  border-radius: 0.5rem;
  padding: 1.5em;
  margin: 1.5em 0;
  text-align: center;
  font-size: 1.1em;
}

.formula-highlight .formula-label {
  display: block;
  font-size: 0.8em;
  color: #808080;
  margin-bottom: 0.5em;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Mermaid diagram styling */
.mermaid {
  margin: 1.5em 0;
}

/* Objective list */
.objetivos {
  background: #f0f7f4;
  border-radius: 0.5rem;
  padding: 1.2em 1.5em;
  margin: 1.5em 0;
}

.objetivos h4 {
  color: #2a8c6e;
  margin-top: 0;
}

.objetivos ul {
  margin-bottom: 0;
}

/* Quiz colapsável: estilo pergunta/resposta */
.callout-caution.callout[data-collapse="true"] {
  border-left-color: #FFCC00 !important;
  background: #fffdf5;
}

.callout-caution.callout[data-collapse="true"] .callout-header {
  cursor: pointer;
  font-weight: 600;
}

.callout-caution.callout[data-collapse="true"] .callout-body {
  border-top: 1px solid #f0e6c0;
  padding-top: 0.8em;
  color: #3F3F3F;
}

/* Animate on scroll (subtle) */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}