:root {
  color-scheme: light;
  font-family: Arial, Helvetica, sans-serif;
  color: #1f2937;
  background: #f3f4f6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #f3f4f6;
}

.registro {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.formulario {
  width: 100%;
  max-width: 400px;
  padding: 32px;
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

h1 {
  margin: 0 0 28px;
  font-size: 26px;
  text-align: center;
}

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

label {
  margin-bottom: 7px;
  font-size: 14px;
  font-weight: 600;
}

input {
  width: 100%;
  margin-bottom: 18px;
  padding: 11px 12px;
  font: inherit;
  color: #111827;
  background: #ffffff;
  border: 1px solid #9ca3af;
  border-radius: 7px;
  outline: none;
}

input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

button {
  margin-top: 4px;
  padding: 11px 16px;
  font: inherit;
  font-weight: 600;
  color: #ffffff;
  background: #2563eb;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.35);
  outline-offset: 2px;
}

.acceso {
  margin: 22px 0 0;
  color: #6b7280;
  font-size: 14px;
  text-align: center;
}

.acceso a {
  color: #2563eb;
}

.error {
  margin-bottom: 20px;
  padding: 10px 12px;
  color: #b91c1c;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 7px;
  font-size: 14px;
}

.error p {
  margin: 0;
}

.error p + p {
  margin-top: 4px;
}

@media (max-width: 480px) {
  .registro {
    align-items: start;
    padding: 16px;
  }

  .formulario {
    padding: 26px 22px;
  }
}