/* ==========================================
   AGUA CLARA COLOMBIA - ESTILOS PRINCIPALES
   ========================================== */

/* Variables CSS para consistencia */
:root {
  --color-primario: #0b3c49;
  --color-primario-claro: #1a5566;
  --color-secundario: #2c7a8c;
  --color-acento: #4a9fb8;
  --color-fondo: #ffffff;
  --color-fondo-secundario: #f8fafb;
  --color-fondo-tabla: #fafbfc;
  --color-texto: #1a1a1a;
  --color-texto-secundario: #4a4a4a;
  --color-texto-suave: #6b7280;
  --color-borde: #e5e7eb;
  --color-borde-suave: #f0f1f3;
  --color-exito: #059669;
  --color-advertencia: #d97706;
  --color-peligro: #dc2626;
  
  --ancho-maximo: 820px;
  --radio-borde: 8px;
  --sombra-suave: 0 1px 3px rgba(0, 0, 0, 0.08);
  --sombra-media: 0 4px 6px rgba(0, 0, 0, 0.07);
  --transicion: all 0.2s ease;
}

/* Reset y base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--color-texto);
  background-color: var(--color-fondo);
  line-height: 1.7;
  font-size: 16px;
}

/* ==========================================
   HEADER Y MARCA
   ========================================== */

.marca {
  background: linear-gradient(135deg, #e8f4f8 0%, #f0f7fa 100%);
  border-bottom: 2px solid var(--color-borde-suave);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(11, 60, 73, 0.04);
}

.marca-contenido {
  max-width: var(--ancho-maximo);
  margin: 0 auto;
  padding: 1.8rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.marca-principal .marca-contenido {
  flex-direction: column;
  align-items: flex-start;
  padding: 3rem 1.5rem 2.5rem;
}

.marca-titulo {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primario);
  letter-spacing: -0.02em;
  margin: 0;
}

.marca-subtitulo {
  margin-top: 0.6rem;
  font-size: 1.05rem;
  color: var(--color-secundario);
  font-weight: 400;
  line-height: 1.5;
  max-width: 600px;
}

.marca-link {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primario);
  text-decoration: none;
  transition: var(--transicion);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.marca-link:hover {
  color: var(--color-acento);
}

.marca-link::before {
  content: "💧";
  font-size: 1.3rem;
}

/* ==========================================
   NAVEGACIÓN
   ========================================== */

.navegacion {
  background-color: var(--color-fondo);
  border-bottom: 1px solid var(--color-borde);
  padding: 0.9rem 0;
  font-size: 0.95rem;
  position: sticky;
  top: 80px;
  z-index: 90;
  box-shadow: var(--sombra-suave);
}

.navegacion-contenido {
  max-width: var(--ancho-maximo);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.navegacion a {
  color: var(--color-texto-secundario);
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: var(--transicion);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.navegacion a:hover {
  background-color: var(--color-fondo-secundario);
  color: var(--color-primario);
}

.separador {
  color: var(--color-borde);
  user-select: none;
}

/* ==========================================
   CONTENIDO PRINCIPAL
   ========================================== */

main {
  max-width: var(--ancho-maximo);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primario);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h2 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-primario);
  margin-top: 2.8rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-borde-suave);
}

h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primario-claro);
  margin-top: 1.8rem;
  margin-bottom: 0.8rem;
}

p {
  color: var(--color-texto-secundario);
  margin-bottom: 1rem;
  line-height: 1.7;
}

/* ==========================================
   ENLACES
   ========================================== */

a {
  color: var(--color-primario);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: var(--transicion);
}

a:hover {
  color: var(--color-acento);
  border-bottom-color: var(--color-acento);
}

/* ==========================================
   LISTAS
   ========================================== */

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1.2rem;
}

li {
  margin-bottom: 0.6rem;
  color: var(--color-texto-secundario);
  line-height: 1.6;
}

li strong {
  color: var(--color-texto);
  font-weight: 600;
}

/* ==========================================
   TABLAS
   ========================================== */

.tabla-contenedor {
  margin: 2rem 0;
  background-color: var(--color-fondo);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-borde);
  overflow: hidden;
  box-shadow: var(--sombra-suave);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

thead {
  background-color: var(--color-fondo-secundario);
}

thead th {
  text-align: left;
  padding: 1rem;
  font-weight: 600;
  color: var(--color-primario);
  border-bottom: 2px solid var(--color-borde);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

tbody td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-borde-suave);
  color: var(--color-texto-secundario);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background-color: var(--color-fondo-secundario);
}

tbody tr:nth-child(even) {
  background-color: #fafbfc;
}

tbody tr:nth-child(even):hover {
  background-color: var(--color-fondo-secundario);
}

/* ==========================================
   TARJETAS Y SECCIONES
   ========================================== */

.tarjeta {
  background-color: var(--color-fondo);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-borde);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--sombra-suave);
  transition: var(--transicion);
}

.tarjeta:hover {
  box-shadow: var(--sombra-media);
}

.tarjeta-info {
  background-color: #eff6ff;
  border-left: 4px solid #3b82f6;
}

.tarjeta-advertencia {
  background-color: #fffbeb;
  border-left: 4px solid var(--color-advertencia);
}

.tarjeta-exito {
  background-color: #f0fdf4;
  border-left: 4px solid var(--color-exito);
}

/* ==========================================
   ESTADOS Y ETIQUETAS
   ========================================== */

.estado {
  display: inline-block;
  font-size: 0.9rem;
  font-style: italic;
  color: var(--color-texto-suave);
  background-color: var(--color-fondo-secundario);
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
  margin-left: 0.5rem;
}

.etiqueta {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.4;
}

.etiqueta-sin-riesgo {
  background-color: #d1fae5;
  color: #065f46;
}

.etiqueta-riesgo-bajo {
  background-color: #fef3c7;
  color: #92400e;
}

.etiqueta-riesgo-medio {
  background-color: #fed7aa;
  color: #9a3412;
}

.etiqueta-riesgo-alto {
  background-color: #fecaca;
  color: #991b1b;
}

/* ==========================================
   CONTENIDO DESTACADO
   ========================================== */

.destacado {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border-left: 4px solid var(--color-acento);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: var(--radio-borde);
}

.destacado p:last-child {
  margin-bottom: 0;
}

/* ==========================================
   GRID DE TARJETAS (para index)
   ========================================== */

.grid-tarjetas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.tarjeta-enlace {
  display: block;
  padding: 1.5rem;
  background-color: var(--color-fondo);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-borde);
  transition: var(--transicion);
  text-decoration: none;
}

.tarjeta-enlace:hover {
  transform: translateY(-2px);
  box-shadow: var(--sombra-media);
  border-color: var(--color-acento);
}

.tarjeta-enlace h3 {
  margin-top: 0;
  color: var(--color-primario);
}

.tarjeta-enlace p {
  color: var(--color-texto-suave);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ==========================================
   FOOTER
   ========================================== */

footer {
  background-color: var(--color-fondo-secundario);
  border-top: 1px solid var(--color-borde);
  padding: 2.5rem 1.5rem;
  margin-top: 4rem;
  text-align: center;
}

.footer-contenido {
  max-width: var(--ancho-maximo);
  margin: 0 auto;
  color: var(--color-texto-suave);
  font-size: 0.9rem;
}

.footer-contenido p {
  color: var(--color-texto-suave);
  margin-bottom: 0.8rem;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
  body {
    font-size: 15px;
  }
  
  .marca-contenido {
    padding: 1.2rem 1rem;
  }
  
  .marca-principal .marca-contenido {
    padding: 2rem 1rem 1.5rem;
  }
  
  .marca-titulo {
    font-size: 1.6rem;
  }
  
  .marca-subtitulo {
    font-size: 0.95rem;
  }
  
  main {
    padding: 1.5rem 1rem 3rem;
  }
  
  h1 {
    font-size: 1.6rem;
  }
  
  h2 {
    font-size: 1.25rem;
    margin-top: 2rem;
  }
  
  .navegacion {
    top: 70px;
  }
  
  .navegacion-contenido {
    padding: 0 1rem;
  }
  
  .tabla-contenedor {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  table {
    min-width: 500px;
  }
  
  thead th, tbody td {
    padding: 0.7rem 0.8rem;
    font-size: 0.9rem;
  }
  
  .grid-tarjetas {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .marca-titulo {
    font-size: 1.4rem;
  }
  
  h1 {
    font-size: 1.4rem;
  }
  
  h2 {
    font-size: 1.15rem;
  }
  
  .navegacion-contenido {
    gap: 0.5rem;
  }
  
  .navegacion a {
    font-size: 0.9rem;
    padding: 0.3rem 0.6rem;
  }
}

/* ==========================================
   IMPRESIÓN
   ========================================== */

@media print {
  body {
    background-color: white;
  }
  
  .marca {
    position: static;
    box-shadow: none;
  }
  
  .navegacion {
    display: none;
  }
  
  .tarjeta, .tabla-contenedor {
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  a {
    text-decoration: underline;
    color: black;
  }
}