.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  position: relative;
}

.auth-back-link {
  position: fixed;
  top: 20px;
  left: 20px;
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
}
.auth-back-link:hover { color: var(--accent); }

.auth-card {
  width: 340px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 4px 24px rgba(23, 41, 79, 0.08);
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  margin-bottom: 18px;
  font-size: 15px;
}

.auth-card h1 { font-size: 20px; margin: 0 0 6px; color: var(--text); }
.auth-sub { color: var(--text-dim); font-size: 13px; margin: 0 0 18px; line-height: 1.4; }
.auth-optional { color: var(--text-dim); font-weight: 400; }

.auth-error {
  background: #fdecea;
  border: 1px solid #f5c2bd;
  color: #a12e24;
  font-size: 12.5px;
  padding: 8px 10px;
  border-radius: 6px;
  margin-bottom: 14px;
}

.auth-card form { display: flex; flex-direction: column; gap: 12px; }
.auth-card label { font-size: 12.5px; color: var(--text-dim); display: flex; flex-direction: column; gap: 5px; }
.auth-card input, .auth-card textarea {
  padding: 9px 10px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
}
.auth-card input:focus, .auth-card textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.auth-card button.primary {
  margin-top: 6px;
  padding: 10px;
  border-radius: 7px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}
.auth-card button.primary:hover { opacity: 0.9; }

.auth-switch { font-size: 12.5px; color: var(--text-dim); margin: 16px 0 0; text-align: center; }

.totp-secret {
  display: block;
  text-align: center;
  font-family: monospace;
  font-size: 14px;
  letter-spacing: 0.08em;
  background: var(--accent-soft);
  border-radius: 7px;
  padding: 9px;
  margin-bottom: 14px;
}