* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background: #f4f4f5;
  color: #000000;
}

.container {
  width: min(1100px, 94%);
  margin: 0 auto 35px auto;
  background: #FFFFFF;
  border: 2px solid #000000;
  border-radius: 18px;
  padding: 25px;
}

.top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin-bottom: 20px;
}

.top img {
  width: 70px;
  height: auto;
  filter: grayscale(100%);
}

h1 {
  margin: 0;
  color: #000000;
  font-size: 38px;
}

h2 {
  color: #000000;
  margin-top: 35px;
  border-bottom: 2px solid #000000;
  padding-bottom: 8px;
}

h3 {
  margin-top: 25px;
  color: #000000;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
}

label {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
}

input,
select,
button {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 2px solid #000000;
  font-size: 15px;
  background: #FFFFFF;
  color: #000000;
}

input:focus,
select:focus {
  outline: none;
  border-color: #000000;
}

button {
  background: #000000;
  color: #FFFFFF;
  font-weight: bold;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  background: #222222;
  transform: scale(1.01);
}

.btn-principal {
  margin-top: 20px;
}

.danger {
  background: #FFFFFF;
  color: #000000;
  border: 2px solid #000000;
}

.danger:hover {
  background: #000000;
  color: #FFFFFF;
}

.card {
  background: #FFFFFF;
  border: 2px solid #000000;
  padding: 15px;
  border-radius: 12px;
  margin-top: 15px;
}

.ajuste-card {
  background: #F5F5F5;
}

.resultado {
  margin-top: 25px;
  background: #000000;
  color: #FFFFFF;
  padding: 20px;
  border-radius: 14px;
  line-height: 1.8;
  font-size: 17px;
  text-align: center;
}

.persona-item {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.chip {
  background: #000000;
  color: #FFFFFF;
  padding: 8px 12px;
  border-radius: 20px;
  font-size: 14px;
}

.participantes,
.aportes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.checkbox-card,
.aporte-card {
  background: #FFFFFF;
  border: 2px solid #000000;
  padding: 10px;
  border-radius: 10px;
}

.acciones {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

small {
  color: #444444;
}

@media(max-width:700px) {
  .container {
    width: 92%;
    padding: 20px;
  }

  h1 {
    font-size: 28px;
  }

  .top {
    flex-direction: column;
  }

  .persona-item {
    flex-direction: column;
  }
}