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

:root {
  --teal: #009FA8;
  --teal-dark: #007a82;
  --bg: #F7F5F2;
  --text: #27272A;
  --muted: #71717A;
  --border: #E4E4E7;
  --danger: #DC2626;
}

body {
  font-family: 'Noto Sans JP', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.btn-primary {
  background: var(--teal);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
}
.btn-primary:hover { background: var(--teal-dark); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.error-msg {
  color: var(--danger);
  font-size: 13px;
  margin-top: 12px;
  min-height: 18px;
}