/* ── Auth pages (login.php, register.php) ──────────────────────── */
.auth-page {
  display: flex;
  justify-content: center;
  padding: 48px 16px 80px;
}
.auth-box {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,0,0,.07);
  padding: 40px;
  width: 100%;
  max-width: 420px;
}
.auth-box h1 {
  font-size: 22px;
  margin: 0 0 6px;
}
.auth-sub {
  color: #888;
  font-size: 14px;
  margin: 0 0 28px;
}
.auth-sub a {
  color: #111;
  font-weight: 600;
}
.auth-error {
  background: #fff3cd;
  color: #856404;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 18px;
}
.auth-form .form-group {
  margin-bottom: 16px;
}
.auth-form label {
  display: block;
  font-size: 13px;
  color: #555;
  margin-bottom: 5px;
  font-weight: 500;
}
.auth-form input,
.auth-form textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  border: 1.5px solid #ddd;
  border-radius: 8px;
  font-size: 15px;
  outline: none;
  transition: border-color .15s;
  font-family: inherit;
}
.auth-form input:focus,
.auth-form textarea:focus {
  border-color: #111;
}
.auth-form .has-error input,
.auth-form .has-error textarea {
  border-color: #e74c3c;
}
.field-error {
  display: block;
  font-size: 12px;
  color: #c0392b;
  margin-top: 4px;
}
.btn-auth {
  width: 100%;
  padding: 13px;
  background: #111;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 4px;
  transition: background .15s;
}
.btn-auth:hover { background: #333; }