:root {
    --surface: #ffffff; --plane: #f6f5f2; --card: #ffffff;
    --ink: #14140f; --ink-2: #4a493f; --ink-muted: #85836f;
    --border: rgba(20,20,15,0.11); --grid: #e6e4da;
    --brand: #0d3d34; --brand-2: #14524a; --accent: #1a8f6b; --danger: #b8452f;
  }
  * { box-sizing: border-box; }
  body { font-family: -apple-system, "Segoe UI", Arial, sans-serif; background: var(--plane); margin: 0; padding: 40px 20px; color: var(--ink); }
  .topbar { max-width: 440px; margin: 0 auto 20px; }
  .wordmark { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px; color: var(--ink); text-decoration: none; }
  .wordmark .mark { width: 34px; height: 34px; background: var(--brand); border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
  @media (max-width: 480px) { .wordmark .wordmark-text { display: none; } }
  .wordmark .suffix { color: var(--ink-muted); font-weight: 500; }
  .card { max-width: 440px; margin: 0 auto 40px; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 36px; }
  .card.wide { max-width: 560px; }
  h1 { font-size: 22px; color: var(--ink); margin: 0 0 4px; letter-spacing: -0.015em; }
  .subtitle { color: var(--ink-2); font-size: 14px; margin: 0 0 4px; }
  label { display: block; margin-top: 20px; font-weight: 600; font-size: 13px; color: var(--ink-2); }
  input, select, textarea { width: 100%; padding: 11px 12px; margin-top: 6px; border: 1px solid var(--grid); border-radius: 6px; font-size: 14px; font-family: inherit; background: var(--surface); color: var(--ink); }
  input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brand-2); }
  textarea { min-height: 90px; resize: vertical; }
  button.submit { margin-top: 28px; width: 100%; padding: 13px; background: var(--ink); color: white; border: none; border-radius: 6px; font-size: 15px; font-weight: 600; cursor: pointer; }
  button.submit:hover { background: var(--brand); }
  .hint { font-size: 12px; color: var(--ink-muted); margin-top: 5px; }

  .error-banner { background: rgba(184,69,47,0.1); color: var(--danger); border: 1px solid rgba(184,69,47,0.25); border-radius: 6px; padding: 10px 12px; font-size: 13px; margin-bottom: 4px; }
  .success-banner { background: rgba(26,143,107,0.1); color: var(--accent); border: 1px solid rgba(26,143,107,0.25); border-radius: 6px; padding: 12px; font-size: 13.5px; }

  .password-rules { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 3px; }
  .password-rules li { font-size: 12px; color: var(--ink-muted); display: flex; align-items: center; gap: 6px; }
  .password-rules li::before { content: "○"; font-size: 10px; }
  .password-rules li.ok { color: var(--accent); }
  .password-rules li.ok::before { content: "●"; }

  .captcha-wrap { margin-top: 20px; }

  .google-btn-wrap { display: flex; justify-content: center; min-height: 44px; }
  .google-btn-wrap iframe { border-radius: 999px !important; }
  .divider-or { display: flex; align-items: center; gap: 14px; margin: 22px 0; color: var(--ink-muted); font-size: 12.5px; font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase; }
  .divider-or::before, .divider-or::after { content: ""; flex: 1; height: 1px; background: var(--border); }
  #google-err.error-banner { margin-top: 14px; margin-bottom: 0; }

  .auth-switch { text-align: center; font-size: 13.5px; color: var(--ink-2); margin-top: 18px; }
  .auth-switch a { color: var(--brand); font-weight: 600; text-decoration: none; }
  .auth-switch a:hover { text-decoration: underline; }

  .section-divider { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--border); }
  .section-divider .label-title { font-size: 13px; font-weight: 700; color: var(--ink); margin-bottom: 2px; }
  .section-divider .label-desc { font-size: 12.5px; color: var(--ink-muted); }

  .auth-footer { max-width: 440px; margin: 0 auto; display: flex; justify-content: center; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 12.5px; color: var(--ink-muted); }
  .auth-footer a { color: var(--ink-muted); text-decoration: none; }
  .auth-footer a:hover { color: var(--ink-2); }
  .lang-select { border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; font-size: 12.5px; color: var(--ink-2); background: var(--surface); font-family: inherit; }