* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f6fb;
  color: #111827;
}

.container {
  width: 100%;
  max-width: 460px;
  margin: 60px auto;
  padding: 0 16px;
}

.card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  padding: 28px;
}

h1 {
  margin: 0 0 12px;
  font-size: 28px;
}

p {
  line-height: 1.5;
}

label {
  display: block;
  margin-top: 16px;
  margin-bottom: 6px;
  font-weight: 700;
}

input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 16px;
}

button, .button {
  display: inline-block;
  width: 100%;
  margin-top: 18px;
  padding: 12px 16px;
  border: 0;
  border-radius: 10px;
  background: #111827;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary, button.secondary {
  background: #e5e7eb;
  color: #111827;
}

.links {
  margin-top: 18px;
  text-align: center;
}

.links a {
  color: #111827;
  font-weight: 700;
}

.alert {
  padding: 12px 14px;
  border-radius: 10px;
  margin: 14px 0;
}

.alert.error {
  background: #fee2e2;
  color: #991b1b;
}

.alert.success {
  background: #dcfce7;
  color: #166534;
}

.alert.info {
  background: #dbeafe;
  color: #1e40af;
}

.small {
  font-size: 14px;
  color: #6b7280;
}

.nav {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.nav .button {
  margin-top: 0;
}