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

body {
  font-family: Georgia, serif;
  background: #fdf8f2;
  color: #2c2c2c;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  text-align: center;
  width: 100%;
  max-width: 420px;
  padding: 2rem;
}

h1 {
  font-size: 2.4rem;
  font-weight: normal;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}

.subtitle {
  color: #888;
  font-style: italic;
  margin-bottom: 2.5rem;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: left;
}

label {
  font-size: 0.85rem;
  color: #666;
  letter-spacing: 0.03em;
}

input {
  padding: 0.75rem 1rem;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 1rem;
  font-family: Georgia, serif;
  background: #fff;
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: #aaa;
}

button {
  padding: 0.8rem;
  border: none;
  border-radius: 6px;
  background: #2c2c2c;
  color: #fff;
  font-size: 1rem;
  font-family: Georgia, serif;
  cursor: pointer;
  transition: background 0.2s;
}

button:hover {
  background: #444;
}

button:disabled {
  background: #bbb;
  cursor: not-allowed;
}

.hidden {
  display: none;
}

.status {
  font-size: 0.9rem;
  padding: 0.6rem;
  border-radius: 6px;
  text-align: center;
}

.status.success {
  background: #edfaf1;
  color: #2d7a4f;
}

.status.error {
  background: #fdecea;
  color: #a33;
}

.hint {
  font-size: 0.78rem;
  color: #aaa;
  font-style: italic;
}

.tip {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.tip-btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  border: 1px solid #ddd;
  border-radius: 6px;
  background: #fff;
  color: #2c2c2c;
  font-family: Georgia, serif;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}

.tip-btn:hover {
  background: #fdf3e3;
  border-color: #ccc;
}

.tip-note {
  font-size: 0.78rem;
  color: #aaa;
  font-style: italic;
}