/* ===== Presentación — diseño simple, grande, un tema a la vez ===== */
:root {
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;

  --accent: #0f766e;
  --accent-tint: #f0fdfa;

  --radio: 18px;
  --radio-sm: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--slate-800);
  background: var(--slate-50);
  line-height: 1.5;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.4em; }
a { color: var(--accent); }
img, svg { max-width: 100%; }

.contenedor { max-width: 1100px; margin: 0 auto; padding: 0 28px; }

/* ===== Barra superior mínima ===== */
.barra-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 28px;
  flex-wrap: wrap;
}
.barra-top .marca { font-weight: 700; color: var(--slate-800); font-size: 1rem; }
.barra-top .marca span { font-weight: 400; color: var(--slate-500); font-size: 0.78rem; }
.barra-top nav { display: flex; gap: 18px; align-items: center; }
.barra-top nav a { color: var(--slate-600); font-weight: 600; font-size: 0.88rem; text-decoration: none; }
.barra-top nav a:hover { color: var(--accent); }

/* ===== Portada ===== */
.hero-portada {
  padding: 56px 0 40px;
  text-align: center;
}
.hero-portada .etiqueta {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #0f766e;
  background: var(--accent-tint);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.hero-portada h1 { font-size: clamp(2rem, 5vw, 3.1rem); color: var(--slate-900); max-width: 780px; margin-left: auto; margin-right: auto; }
.hero-portada p { color: var(--slate-600); font-size: 1.15rem; max-width: 620px; margin: 14px auto 0; }

.semana-bloque { margin: 36px 0; }
.semana-titulo-portada {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--slate-500);
  text-align: center;
  margin-bottom: 16px;
}

.grilla-portada {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}

.tile-jornada {
  display: block;
  background: white;
  border: 2px solid var(--slate-100);
  border-radius: var(--radio);
  padding: 26px 22px;
  text-align: left;
  text-decoration: none;
  color: var(--slate-800);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.tile-jornada:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.1);
  border-color: var(--tile-color, var(--accent));
}
.tile-jornada .dia-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--tile-color, var(--accent));
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 14px;
}
.tile-jornada .dia-nombre { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--tile-color, var(--accent)); }
.tile-jornada h3 { font-size: 1.2rem; margin: 4px 0 6px; }
.tile-jornada p { font-size: 0.88rem; color: var(--slate-500); margin: 0; }

.tile-jornada.deshabilitada {
  opacity: 0.55;
  pointer-events: none;
  filter: grayscale(0.5);
}
.tile-jornada.deshabilitada .dia-num { background: var(--slate-300); color: var(--slate-600); }
.tile-jornada.deshabilitada:hover { transform: none; box-shadow: none; border-color: var(--slate-100); }

.tile-tarea {
  display: block;
  background: white;
  border: 2px solid var(--slate-100);
  border-top: 4px solid var(--slate-700);
  border-radius: var(--radio);
  padding: 22px 22px;
  text-align: left;
  text-decoration: none;
  color: var(--slate-800);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.tile-tarea:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(15, 23, 42, 0.1); }
.tile-tarea .tarea-etiqueta { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--slate-500); }
.tile-tarea h3 { font-size: 1.1rem; margin: 4px 0 0; }

/* ===== Visor de un día (modo presentación) ===== */
.marco-jornada {
  min-height: 100vh;
  background: var(--accent-tint);
}

.cabecera-slide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  flex-wrap: wrap;
  gap: 10px;
}
.cabecera-slide .volver { font-size: 0.85rem; font-weight: 700; color: var(--slate-600); text-decoration: none; }
.cabecera-slide .info-jornada { font-size: 0.85rem; font-weight: 700; color: var(--accent); text-align: center; }
.cabecera-slide .contador { font-size: 0.8rem; color: var(--slate-500); font-variant-numeric: tabular-nums; }

.layout-clase {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 24px;
  padding: 8px 0 56px;
  align-items: start;
}

.sidebar-temas {
  position: sticky;
  top: 20px;
  background: white;
  border: 1px solid var(--slate-100);
  border-radius: var(--radio-sm);
  overflow: hidden;
}
.sidebar-temas button {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-left: 4px solid transparent;
  padding: 14px 16px;
  cursor: pointer;
  font: inherit;
  color: var(--slate-700);
  border-bottom: 1px solid var(--slate-100);
}
.sidebar-temas button:last-child { border-bottom: none; }
.sidebar-temas button:hover { background: var(--slate-50); }
.sidebar-temas button.activa {
  background: var(--accent-tint);
  border-left-color: var(--accent);
  color: var(--slate-900);
}
.sidebar-temas .titulo-tema { display: block; font-weight: 700; font-size: 0.95rem; margin-bottom: 6px; }

.insignia {
  display: inline-flex;
  align-items: center;
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 3px 9px;
  border-radius: 999px;
  color: white;
}

.panel-tema {
  background: white;
  border-radius: var(--radio);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  padding: 40px clamp(24px, 5vw, 56px);
  min-height: 420px;
}
.cabecera-tema-p { margin-bottom: 12px; }

.panel-tema h1 { font-size: clamp(1.7rem, 3.6vw, 2.3rem); color: var(--slate-900); }
.subtitulo-slide { color: var(--slate-500); font-size: 1.1rem; margin: -6px 0 24px; }

.lista-slide { margin: 0 0 20px; padding-left: 1.3em; font-size: 1.12rem; color: var(--slate-700); }
.lista-slide li { margin-bottom: 12px; }

.destacado-slide {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--accent-tint);
  border-left: 5px solid var(--accent);
  border-radius: 0 var(--radio-sm) var(--radio-sm) 0;
  padding: 18px 20px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--slate-800);
  margin: 0 0 20px;
}
.destacado-slide .icono { font-size: 1.5rem; }

.tarea-slide {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--slate-900);
  color: white;
  border-radius: var(--radio-sm);
  padding: 20px 22px;
  margin-top: 10px;
}
.tarea-slide .icono { font-size: 1.8rem; }
.tarea-slide a.boton {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--slate-900);
  background: white;
  padding: 7px 14px;
  border-radius: 999px;
  text-decoration: none;
}

.slide-descanso { text-align: center; padding: 40px 0; }
.slide-descanso .icono-grande { font-size: 4.5rem; margin-bottom: 10px; }
.slide-descanso h1 { font-size: 2rem; }

.no-disponible {
  max-width: 520px;
  margin: 48px auto;
  text-align: center;
}
.no-disponible h1 { font-size: 1.8rem; }
.no-disponible p { color: var(--slate-600); font-size: 1.05rem; }
.no-disponible a { display: inline-block; margin-top: 18px; font-weight: 700; }

.navegacion-temas {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
  gap: 12px;
}
.navegacion-temas button {
  display: flex;
  align-items: center;
  gap: 8px;
  font: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--slate-700);
  background: white;
  border: 1px solid var(--slate-200);
  padding: 12px 22px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}
.navegacion-temas button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.navegacion-temas button:disabled { opacity: 0.35; cursor: default; }

/* ===== Tareas (presentación) ===== */
.tarjeta-tarea-simple {
  background: white;
  border-radius: var(--radio);
  padding: 32px clamp(24px, 5vw, 44px);
  margin-bottom: 22px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}
.tarjeta-tarea-simple .rotulo-tarea { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--accent); }
.tarjeta-tarea-simple h2 { font-size: 1.5rem; margin: 6px 0 14px; }
.tarjeta-tarea-simple .meta-simple { display: flex; gap: 18px; flex-wrap: wrap; font-size: 0.9rem; color: var(--slate-500); margin-bottom: 16px; }
.tarjeta-tarea-simple ol, .tarjeta-tarea-simple ul { padding-left: 1.3em; font-size: 1.05rem; color: var(--slate-700); }
.tarjeta-tarea-simple li { margin-bottom: 8px; }
.tarjeta-tarea-simple h3 { font-size: 0.95rem; margin-top: 20px; color: var(--slate-800); }

@media (max-width: 820px) {
  .layout-clase { grid-template-columns: 1fr; }
  .sidebar-temas { position: static; display: flex; overflow-x: auto; }
  .sidebar-temas button { flex: 0 0 auto; min-width: 200px; border-left: none; border-bottom: 4px solid transparent; }
  .sidebar-temas button.activa { border-left: none; border-bottom-color: var(--accent); }
}

@media (max-width: 640px) {
  .panel-tema { padding: 28px 22px; }
  .cabecera-slide { justify-content: center; text-align: center; }
  .navegacion-temas button span.texto { display: none; }
}