* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: #f7fafc;
  color: #2d3748;
}

.header {
  background-color: #ffffff;
  padding: 15px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header .logo span {
  font-weight: bold;
  font-size: 1.2rem;
  color: #2c3e50;
}

.btn-volver {
  color: #3182ce;
  text-decoration: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s;
}

.btn-volver:hover {
  color: #2b6cb0;
}

.container {
  max-width: 950px;
  margin: 30px auto;
  padding: 0 20px;
}

.main-card {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  overflow: hidden;
}

/* TABS HEADER */
.tabs-header {
  display: flex;
  background: #edf2f7;
  border-bottom: 2px solid #e2e8f0;
}

.tab-btn {
  flex: 1;
  padding: 16px;
  border: none;
  background: transparent;
  font-size: 0.95rem;
  font-weight: 600;
  color: #718096;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.tab-btn:hover {
  color: #2d3748;
  background: #e2e8f0;
}

.tab-btn.active {
  background: #ffffff;
  color: #3182ce;
  border-bottom: 3px solid #3182ce;
}

/* BODY CONTENT */
.tabs-body {
  padding: 30px;
}

.tabs-body h2 {
  font-size: 1.35rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.tabs-body .sub {
  color: #718096;
  font-size: 0.9rem;
  margin-bottom: 15px;
}

hr {
  border: none;
  border-top: 1px solid #edf2f7;
  margin-bottom: 25px;
}

/* PASOS CON DISEÑO DE TARJETAS */
.pasos-container {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 30px;
}

.paso-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  background: #f8fafc;
  padding: 16px;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}

.paso-num {
  background: #3182ce;
  color: white;
  font-weight: bold;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.paso-text strong {
  display: block;
  font-size: 1rem;
  color: #2d3748;
  margin-bottom: 4px;
}

.paso-text p {
  font-size: 0.9rem;
  color: #4a5568;
  line-height: 1.4;
}

/* BOTONES HACIA SITIOS OFICIALES */
.links-oficiales {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 20px;
}

.btn-oficial {
  padding: 12px 20px;
  border-radius: 8px;
  color: white;
  text-decoration: none;
  font-weight: bold;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: opacity 0.2s, transform 0.2s;
}

.btn-oficial:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.sat-bg { background-color: #2b6cb0; }
.satid-bg { background-color: #4a5568; }
.imss-bg { background-color: #276749; }
.curp-bg { background-color: #d69e2e; }

/* DISCLAIMER DE SEGURIDAD */
.disclaimer-container {
  background-color: #ebf8ff;
  border-top: 1px solid #bee3f8;
  padding: 16px 24px;
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
}

.disclaimer-container p {
  font-size: 0.82rem;
  color: #2c5282;
  line-height: 1.5;
  margin: 0;
}

.disclaimer-container i {
  color: #3182ce;
  margin-right: 4px;
}