:root {
  --salvia: #6B8E85;
  --arena: #EDEBE6;
  --blanco: #FAFAF7;
  --gris: #8B8B8B;
  --ink: #2F2F2F;
  --line: rgba(139, 139, 139, 0.25);
}

body {
  background-color: var(--arena);
  color: var(--ink);
  font-family: "Inter", system-ui, sans-serif;
}

/* ================================
   Header / Títulos
================================ */
.page-header {
  text-align: center;
  margin-bottom: 3rem;
  max-width: 800px;
  margin-inline: auto;
}

.page-title {
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 0.5rem;
  font-size: 2.2rem;
}

.page-subtitle {
  color: var(--gris);
  font-weight: 600;
  font-size: 1.1rem;
}

/* =========================================
   Navegación tipo Pills
========================================= */
.nav-pills-custom {
  background-color: #fff;
  padding: 0.5rem;
  border-radius: 50px;
  display: inline-flex;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  border: 1px solid rgba(0,0,0,0.05);
  margin-bottom: 3rem;
}

.nav-pills-custom .nav-link {
  color: var(--gris);
  font-weight: 700;
  padding: 0.6rem 2rem;
  border-radius: 50px;
  background: transparent;
  border: none;
  transition: all 0.2s ease;
}

.nav-pills-custom .nav-link:hover {
  color: var(--salvia);
  background-color: rgba(107,142,133,.06);
}

.nav-pills-custom .nav-link.active {
  background-color: var(--salvia);
  color: #fff;
  box-shadow: 0 4px 10px rgba(107,142,133,.35);
}

/* =========================================
   Paneles de Contenido
========================================= */
.tab-pane {
  animation: fadeIn .4s ease-out;
}

.academic-panel {
  background-color: #fff;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 10px;
  padding: 30px 40px;
  box-shadow: 0 8px 24px rgba(0,0,0,.04);
  margin-bottom: 2rem;
}

/* ❌ eliminada la línea verde */
.academic-panel {
  border-left: 0;
}

.academic-panel h2 {
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--ink);
}

.academic-panel h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--salvia);
  margin: 1.5rem 0 .8rem;
}

/* =========================================
   Listas
========================================= */
ul, ol {
  padding-left: 1.2rem;
}

li {
  margin-bottom: .5rem;
  line-height: 1.6;
  color: #444;
}

li::marker {
  color: var(--salvia);
  font-weight: bold;
}

/* =========================================
   Código / formatos (estilo chip, NO rosa)
========================================= */
.code-block,
.code-example {
  display: inline-block;
  background: rgba(107,142,133,.12);
  border: 1px solid rgba(107,142,133,.25);
  border-radius: 10px;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  padding: .25rem .55rem;
  font-size: .9rem;
  line-height: 1.4;
  margin: .25rem 0;
  word-break: break-word;
}

/* Para cuando quieras que vaya en bloque */
.code-example.is-block,
.code-block.is-block {
  display: block;
  width: 100%;
}

/* =========================================
   Cajas auxiliares
========================================= */
.schedule-box {
  background-color: var(--arena);
  border-radius: 8px;
  padding: 15px;
  text-align: center;
  height: 100%;
}

/* =========================================
   Alerts
========================================= */
.alert-custom {
  background-color: rgba(255,193,7,.10);
  border: 0;
  color: var(--ink);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-size: .95rem;
}

/* =========================================
   Links
========================================= */
.contact-mail {
  font-weight: 700;
  color: var(--salvia);
  text-decoration: none;
}

.contact-mail:hover {
  text-decoration: underline;
}

/* =========================================
   Acordeón
========================================= */
.accordion-item {
  border: 1px solid rgba(107,142,133,.35);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: .75rem;
  background-color: #fff;
}

.accordion-button {
  font-weight: 700;
  color: var(--ink);
  background-color: #fff;
  padding: 1rem 1.25rem;
}

.accordion-button:not(.collapsed) {
  background-color: var(--salvia);
  color: #fff;
}

.accordion-button:hover {
  background-color: rgba(107,142,133,.12);
}

.accordion-button:not(.collapsed):hover {
  background-color: #5f8078;
}

.accordion-button::after {
  filter: hue-rotate(90deg) saturate(1.2);
}

.accordion-button:not(.collapsed)::after {
  filter: brightness(0) invert(1);
}

.accordion-button:focus {
  box-shadow: 0 0 0 .2rem rgba(107,142,133,.35);
}

.accordion-body {
  background-color: var(--blanco);
  padding: 1.25rem 1.5rem;
  color: #444;
  line-height: 1.65;
}

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

/* =========================================
   Responsive
========================================= */
@media (max-width: 768px) {
  .nav-pills-custom {
    width: 100%;
    flex-direction: column;
    border-radius: 12px;
  }

  .nav-pills-custom .nav-link {
    width: 100%;
    border-radius: 8px;
    text-align: center;
  }

  .academic-panel {
    padding: 20px;
  }
}