* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #eef2f7;
  min-height: 100vh;
}

header {
  background: #0d6efd;
  color: white;
  padding: 20px 30px;
  text-align: center;
}

.logo {
  font-size: 2rem;
  font-weight: bold;
}

.subtitulo {
  font-size: 0.9rem;
  opacity: 0.85;
  margin-top: 4px;
}

main {
  max-width: 750px;
  margin: 30px auto;
  padding: 0 16px;
}

.card {
  background: white;
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  margin-bottom: 20px;
}

.login-card {
  max-width: 400px;
  margin: 0 auto;
}

h2 {
  color: #0d6efd;
  margin-bottom: 18px;
  font-size: 1.3rem;
}

h3 {
  margin: 18px 0 10px;
  color: #333;
  font-size: 1rem;
}

input[type="text"],
input[type="password"],
input[type="date"],
input[type="time"] {
  display: block;
  width: 100%;
  padding: 10px 14px;
  margin-bottom: 12px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: border 0.2s;
}

input:focus {
  outline: none;
  border-color: #0d6efd;
}

button {
  background: #0d6efd;
  color: white;
  border: none;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s;
}

button:hover {
  background: #0b5ed7;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tab {
  background: #dee2e6;
  color: #333;
  border-radius: 8px;
  padding: 9px 18px;
}

.tab.activo {
  background: #0d6efd;
  color: white;
}

.tab.cerrar {
  background: #dc3545;
  color: white;
  margin-left: auto;
}

.tab.cerrar:hover {
  background: #bb2d3b;
}

.oculto {
  display: none;
}

.mensaje {
  margin-top: 10px;
  font-size: 0.9rem;
  color: #198754;
  min-height: 20px;
}

.mensaje.error {
  color: #dc3545;
}

.lista {
  list-style: none;
  padding: 0;
}

.lista li {
  background: #f8f9fa;
  border-left: 4px solid #0d6efd;
  padding: 10px 14px;
  margin-bottom: 8px;
  border-radius: 6px;
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lista li button {
  background: #dc3545;
  padding: 4px 10px;
  font-size: 0.8rem;
  border-radius: 5px;
}

.resultado-historia {
  margin-top: 16px;
}

.historia-card {
  background: #f0f7ff;
  border-radius: 8px;
  padding: 16px;
  border-left: 4px solid #0d6efd;
}

.historia-card p {
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.historia-card strong {
  color: #0d6efd;
}

.resultado-reporte {
  margin-top: 16px;
}

.reporte-tabla {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.reporte-tabla th {
  background: #0d6efd;
  color: white;
  padding: 10px;
  text-align: left;
}

.reporte-tabla td {
  padding: 9px 10px;
  border-bottom: 1px solid #dee2e6;
}

.reporte-tabla tr:nth-child(even) td {
  background: #f8f9fa;
}

.form-group {
  display: flex;
  flex-direction: column;
}