* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f4f6f8;
  color: #222;
}

.card {
  max-width: 720px;
  margin: 60px auto;
  padding: 32px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

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

p {
  line-height: 1.8;
}

form {
  margin-top: 24px;
}

label {
  display: block;
  margin-top: 16px;
  margin-bottom: 6px;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccd3da;
  border-radius: 8px;
  font-size: 16px;
}

button {
  width: 100%;
  margin-top: 24px;
  padding: 14px;
  border: none;
  border-radius: 8px;
  background: #2563eb;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  opacity: 0.9;
}

.error {
  padding: 12px;
  background: #ffebee;
  color: #b71c1c;
  border-left: 4px solid #c62828;
  border-radius: 8px;
}

.note {
  margin-top: 24px;
  padding: 16px;
  background: #fff8e1;
  border-left: 4px solid #f9a825;
  border-radius: 8px;
}

.info {
  margin-top: 24px;
  padding: 16px;
  background: #eef4ff;
  border-radius: 8px;
}

.menu {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}

.menu a {
  display: block;
  padding: 16px;
  text-align: center;
  text-decoration: none;
  background: #eef1f4;
  color: #222;
  border-radius: 8px;
  font-weight: 600;
}

.menu a:hover {
  background: #dfe5ec;
}

.logout {
  display: inline-block;
  margin-top: 24px;
  color: #555;
}