/* ===== Estilos base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #FAF7F2;
  color: #1E3A5F;
  line-height: 1.5;
  padding: 1rem;
}

.contenedor {
  max-width: 480px;
  margin: 0 auto;
}

h1 {
  text-align: center;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: #1E3A5F;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: #1E3A5F;
}

/* ===== Racha ===== */
.racha {
  text-align: center;
  padding: 2rem 1.5rem;
  margin-bottom: 1.25rem;
  background: #FFFFFF;
  border: 2px solid #2D5F3F;
  border-radius: 12px;
}

.racha-numero {
  display: block;
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  color: #2D5F3F;
  font-family: Georgia, "Times New Roman", serif;
}

.racha-texto {
  display: block;
  font-size: 1rem;
  font-weight: 500;
  color: #1E3A5F;
  margin-top: 0.25rem;
}

.racha-mejor {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: #6B7280;
}

/* ===== Tarjetas ===== */
.tarjeta {
  background: #FFFFFF;
  border: 1px solid #E5E0D8;
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

/* ===== Formulario ===== */
label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: #1E3A5F;
}

input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  margin-bottom: 1rem;
  border: 1.5px solid #D1CCC2;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: #FFFFFF;
  color: #1E3A5F;
  transition: border-color 0.15s ease;
}

input:focus {
  outline: none;
  border-color: #2D5F3F;
  box-shadow: 0 0 0 3px rgba(45, 95, 63, 0.1);
}

button {
  width: 100%;
  padding: 0.75rem;
  background: #2D5F3F;
  color: #FFFFFF;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

button:hover {
  background: #234A31;
}

button:focus-visible {
  outline: 2px solid #1E3A5F;
  outline-offset: 2px;
}

/* ===== Lista de sesiones ===== */
.lista {
  list-style: none;
}

.lista li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.7rem 0;
  border-bottom: 1px solid #E5E0D8;
  font-size: 0.95rem;
}

.lista li:last-child {
  border-bottom: none;
}

.lista-fecha {
  font-weight: 600;
  color: #6B7280;
  font-size: 0.8rem;
  min-width: 110px;
}

.lista-detalle {
  flex: 1;
  margin-left: 0.75rem;
  color: #1E3A5F;
}

.lista-minutos {
  font-weight: 700;
  color: #2D5F3F;
  white-space: nowrap;
}

.lista-vacia {
  text-align: center;
  color: #6B7280;
  font-size: 0.9rem;
  padding: 1rem 0;
}

/* ===== Estadísticas ===== */
.stats {
  display: flex;
  gap: 1rem;
}

.stat {
  flex: 1;
  text-align: center;
}

.stat-numero {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: #1E3A5F;
  font-family: Georgia, "Times New Roman", serif;
}

.stat-texto {
  font-size: 0.75rem;
  color: #6B7280;
}

/* ===== Botones de sesión ===== */
.lista-acciones {
  display: flex;
  gap: 0.35rem;
  margin-left: 0.5rem;
}

.btn-editar,
.btn-eliminar {
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.15s ease;
}

.btn-editar {
  background: #E5E0D8;
  color: #1E3A5F;
}

.btn-editar:hover {
  background: #D1CCC2;
}

.btn-eliminar {
  background: #DC2626;
  color: #FFFFFF;
}

.btn-eliminar:hover {
  background: #B91C1C;
}

.btn-editar:focus-visible,
.btn-eliminar:focus-visible {
  outline: 2px solid #1E3A5F;
  outline-offset: 2px;
}

/* ===== Mapa de calor ===== */
.mapa-grid {
  display: grid;
  grid-template-columns: repeat(52, 12px);
  grid-template-rows: auto repeat(7, 12px);
  gap: 2px;
  font-size: 0.7rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  -webkit-overflow-scrolling: touch;
}

.mapa-grid::-webkit-scrollbar {
  height: 6px;
}

.mapa-grid::-webkit-scrollbar-thumb {
  background: #D1CCC2;
  border-radius: 3px;
}

.mapa-etiqueta {
  grid-column: span 1;
  font-weight: 600;
  color: #6B7280;
  padding: 0.25rem 0;
  text-align: center;
  white-space: nowrap;
}

.mapa-celda {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.1s ease;
}

.mapa-celda:hover {
  transform: scale(1.5);
  z-index: 1;
  position: relative;
}

.mapa-celda-futuro {
  visibility: hidden;
}

.mapa-tooltip {
  position: absolute;
  background: #1E3A5F;
  color: #FFFFFF;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  font-size: 0.8rem;
  white-space: nowrap;
  pointer-events: none;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* ===== Accesibilidad: reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

/* ===== Distribución de temas (gráfico de queso) ===== */
.distribucion-wrapper {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.pie-chart {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
  cursor: crosshair;
  /* background se aplica vía JS con conic-gradient completo */
}

/* Fallback para navegadores sin support de conic-gradient */
@supports not (background: conic-gradient(red, blue)) {
  .pie-chart {
    background: #E5E0D8;
  }
}

.pie-leyenda {
  list-style: none;
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
}

.pie-leyenda li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid #E5E0D8;
}

.pie-leyenda li:last-child {
  border-bottom: none;
}

.leyenda-color {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex-shrink: 0;
}

.pie-tooltip {
  position: absolute;
  background: #1E3A5F;
  color: #FFFFFF;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  font-size: 0.8rem;
  white-space: nowrap;
  pointer-events: none;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transform: translateX(-50%);
}

.distribucion-vacio {
  text-align: center;
  color: #6B7280;
  font-size: 0.9rem;
  padding: 2rem 1rem;
}

/* ===== Objetivo semanal ===== */
.objetivo-semanal {
  background: #FFFFFF;
  border: 1px solid #E5E0D8;
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.objetivo-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.error-inline {
  color: #A82B1A;
  font-size: 0.8rem;
  margin: 0;
}

.ayuda {
  color: #6B7280;
  font-size: 0.8rem;
  margin: 0;
}

.barra-progreso {
  height: 12px;
  background: #E5E0D8;
  border-radius: 6px;
  overflow: hidden;
}

.barra-progreso-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 0.3s ease, background-color 0.3s ease;
}

@media (prefers-reduced-motion: reduce) {
  .barra-progreso-fill {
    transition: none;
  }
}

.progreso-texto-principal {
  font-weight: 600;
  margin-top: 0.5rem;
}

.progreso-texto-secundario {
  color: #6B7280;
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.semana-pasada {
  color: #6B7280;
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.btn-cambiar {
  margin-top: 0.75rem;
  background: #E5E0D8;
  color: #1E3A5F;
}

.btn-cambiar:hover {
  background: #D1CCC2;
}

/* Responsive: móvil */
@media (max-width: 600px) {
  .distribucion-wrapper {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .pie-chart {
    width: 160px;
    height: 160px;
  }

  .pie-leyenda {
    text-align: center;
    width: 100%;
  }

  .pie-leyenda li {
    justify-content: center;
  }
}