/* ==========================================
   ESTILOS ESPECÍFICOS - PÁGINA DE CANALIZACIONES
   H.A.R.T.P - Toulouse
   ========================================== */

/* ---------- VARIABLES DE DISEÑO ---------- */
:root {
  --canal-primary: #1E3A8A;      /* Azul corporativo */
  --canal-primary-light: #2563EB; /* Azul brillante */
  --canal-accent: #EA580C;       /* Naranja CTA */
  --canal-accent-hover: #C2410C; /* Naranja hover */
  --canal-danger: #ef4444;       /* Rojo (antiguas normas) */
  --canal-success: #10b981;      /* Verde (nuevas normas) */
  --canal-text: #1f2937;         /* Texto principal */
  --canal-text-light: #4b5563;   /* Texto secundario */
  --canal-bg-soft: #f8fafc;      /* Fondo suave */
  --canal-radius: 16px;
  --canal-shadow: 0 4px 20px rgba(30, 58, 138, 0.08);
  --canal-shadow-hover: 0 12px 35px rgba(30, 58, 138, 0.18);
}

/* ---------- HERO SECTION ---------- */
.canal-hero {
  text-align: center;
  padding: 4rem 1rem 3rem;
  position: relative;
}

.canal-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--canal-primary);
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.canal-hero h1 .highlight {
  color: var(--canal-accent);
  display: inline-block;
}

.canal-hero .canal-hero-subtitle {
  font-size: 1.15rem;
  color: var(--canal-text-light);
  max-width: 800px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.canal-hero .canal-hero-subtitle strong {
  color: var(--canal-primary);
}

/* Botón CTA principal */
.btn-canal-urgencia {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--canal-danger);
  color: white;
  padding: 14px 28px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.3);
  transition: all 0.3s ease;
  animation: pulse-urgencia 2.5s infinite;
}

.btn-canal-urgencia:hover {
  background: #b91c1c;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(239, 68, 68, 0.4);
}

@keyframes pulse-urgencia {
  0%, 100% { box-shadow: 0 6px 20px rgba(239, 68, 68, 0.3); }
  50% { box-shadow: 0 6px 25px rgba(239, 68, 68, 0.5); }
}

/* ---------- SECCIONES SPLIT (Texto + Imagen) ---------- */
.canal-section {
  padding: 3rem 0;
}

.canal-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 768px) {
  .canal-split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.canal-split h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--canal-primary);
  margin-bottom: 1.25rem;
  line-height: 1.25;
}

.canal-split p {
  color: var(--canal-text-light);
  line-height: 1.7;
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.canal-split ul {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.canal-split ul li {
  position: relative;
  padding: 0.6rem 0 0.6rem 2rem;
  color: var(--canal-text);
  line-height: 1.6;
  border-bottom: 1px solid #e5e7eb;
}

.canal-split ul li:last-child {
  border-bottom: none;
}

.canal-split ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.6rem;
  color: var(--canal-success);
  font-weight: 700;
  font-size: 1.1rem;
}

/* ---------- IMÁGENES DE CANALIZACIONES ---------- */
#img-camera-inspection,
#img-excavation {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: var(--canal-radius);
  box-shadow: var(--canal-shadow);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  display: block;
}

#img-camera-inspection:hover,
#img-excavation:hover {
  transform: scale(1.02);
  box-shadow: var(--canal-shadow-hover);
}

@media (max-width: 768px) {
  #img-camera-inspection,
  #img-excavation {
    height: 240px;
    order: -1; /* Imagen arriba en móvil */
  }
}

/* ---------- SECCIÓN COMPARATIVA (Normas) ---------- */
.canal-comparison {
  padding: 3rem 1rem;
  background-color: var(--canal-bg-soft);
  border-radius: var(--canal-radius);
  margin: 3rem 0;
}

.canal-comparison h2 {
  text-align: center;
  color: var(--canal-primary);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 2.5rem;
}

.canal-comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.canal-card {
  background: white;
  padding: 2rem;
  border-radius: 14px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.canal-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--canal-shadow-hover);
}

.canal-card--danger {
  border-left: 5px solid var(--canal-danger);
}

.canal-card--success {
  border-left: 5px solid var(--canal-success);
}

.canal-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.canal-card--danger h3 {
  color: var(--canal-danger);
}

.canal-card--success h3 {
  color: var(--canal-success);
}

.canal-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.canal-card ul li {
  padding: 0.75rem 0;
  color: var(--canal-text-light);
  line-height: 1.6;
  border-bottom: 1px dashed #e5e7eb;
  font-size: 0.95rem;
}

.canal-card ul li:last-child {
  border-bottom: none;
}

.canal-card ul li strong {
  color: var(--canal-text);
  display: block;
  margin-bottom: 0.25rem;
}

/* ---------- SECCIÓN CTA FINAL ---------- */
.canal-cta-final {
  background: linear-gradient(135deg, var(--canal-primary) 0%, var(--canal-primary-light) 100%);
  color: white;
  padding: 4rem 1.5rem;
  border-radius: var(--canal-radius);
  text-align: center;
  margin: 4rem 0 2rem;
  position: relative;
  overflow: hidden;
}

.canal-cta-final::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(234, 88, 12, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.canal-cta-final h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.canal-cta-final p {
  max-width: 700px;
  margin: 0 auto 2rem;
  opacity: 0.95;
  line-height: 1.6;
  font-size: 1.05rem;
  position: relative;
  z-index: 1;
}

.btn-canal-cta {
  display: inline-block;
  background: var(--canal-accent);
  color: white;
  padding: 1rem 2.5rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 8px 25px rgba(234, 88, 12, 0.35);
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
}

.btn-canal-cta:hover {
  background: var(--canal-accent-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(234, 88, 12, 0.45);
}

/* ---------- RESPONSIVE GENERAL ---------- */
@media (max-width: 640px) {
  .canal-hero {
    padding: 2.5rem 1rem 2rem;
  }
  
  .canal-section {
    padding: 2rem 0;
  }
  
  .canal-comparison {
    padding: 2rem 1rem;
    margin: 2rem 0;
  }
  
  .canal-cta-final {
    padding: 3rem 1.5rem;
    margin: 3rem 0 1rem;
  }
}