/* ── AUTH SECTION ─────────────────────────────────────────────── */
  .auth-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 20px 40px;
    position: relative;
    background: var(--white);
  }

  .auth-bg-texture {
    position: absolute;
    inset: 0;
    background-image:
      repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(0,0,0,0.03) 40px),
      repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(0,0,0,0.03) 40px);
    pointer-events: none;
  }

  .auth-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.10);
    padding: 44px 40px 40px;
  }

  .auth-eyebrow {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gray-mid);
    margin-bottom: 14px;
  }

  .auth-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 900;
    font-size: clamp(46px, 8vw, 60px);
    line-height: 0.92;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    color: var(--black);
    margin-bottom: 14px;
    position: relative;
  }

  .auth-title-accent {
    display: block;
    width: 52px;
    height: 3px;
    background: var(--black);
    margin-top: 14px;
  }

  .auth-sub {
    font-family: 'Barlow', sans-serif;
    font-weight: 300;
    font-size: 13px;
    line-height: 1.65;
    color: var(--gray-dark);
    margin-bottom: 28px;
  }

  .auth-form { display: flex; flex-direction: column; gap: 16px; }

  .auth-field { display: flex; flex-direction: column; gap: 5px; }

  .auth-label {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gray-dark);
  }

  .auth-input {
    font-family: 'Barlow', sans-serif;
    font-size: 14px;
    font-weight: 300;
    color: var(--black);
    background: transparent;
    border: none;
    border-bottom: 1.5px solid rgba(0,0,0,0.18);
    padding: 8px 0;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
  }
  .auth-input:focus { border-bottom-color: var(--black); }
  .auth-input.input-error { border-bottom-color: #c0392b; }

  .auth-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
  }

  .auth-check {
    font-family: 'Barlow', sans-serif;
    font-size: 12px;
    font-weight: 300;
    color: var(--gray-dark);
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
  }
  .auth-link {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray-dark);
    text-decoration: none;
    transition: color 0.2s;
  }
  .auth-link:hover { color: var(--black); }

  .auth-submit {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background: var(--black);
    color: var(--white);
    border: none;
    cursor: pointer;
    margin-top: 6px;
    transition: opacity 0.2s;
    width: 100%;
  }
  .auth-submit:hover { opacity: 0.85; }
  .auth-submit:disabled { opacity: 0.5; cursor: not-allowed; }

  .auth-submit-label {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }

  .auth-submit-arrow { font-size: 16px; }



   .auth-foot {
    font-family: 'Barlow', sans-serif; font-size: 12px;
    font-weight: 300; color: var(--gray-dark);
    margin-top: 22px; text-align: center;
  }
  .auth-foot a { color: var(--black); font-weight: 600; text-decoration: none; }
  .auth-foot a:hover { text-decoration: underline; }


  
  .auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 22px 0;
  }
  .auth-divider::before,
  .auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(0,0,0,0.10);
  }
  .auth-divider span {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gray-mid);
  }

  .auth-alt {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border: 1.5px solid rgba(0,0,0,0.14);
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--black);
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
  }
  .auth-alt:hover { background: var(--black); color: var(--white); }




  
  /* ── NOTICE BOX ── */
  .auth-notice {
    display: none;
    padding: 11px 14px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px; letter-spacing: 0.05em;
    line-height: 1.5; border-left: 3px solid;
    margin-bottom: 12px;
    animation: noticeIn 0.25s ease;
  }
  @keyframes noticeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  .auth-notice.error { background: rgba(192,57,43,0.07); border-color: #c0392b; color: #7b1a1a; }
  .auth-notice.success { background: rgba(39,174,96,0.07); border-color: #27ae60; color: #145a32; }

  .field-error {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; color: #c0392b;
    letter-spacing: 0.04em; margin-top: 3px; display: none;
  }
  .field-error.visible { display: block; }

  /* ── OTP BLOCK ── */
  #otp-block {
    display: none;
    flex-direction: column;
    gap: 16px;
    margin-top: 4px;
  }
  #otp-block.visible { display: flex; }

  .otp-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--gray-mid);
  }

  .otp-inputs {
    display: flex;
    gap: 10px;
  }

  .otp-digit {
    width: 52px; height: 56px;
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700; font-size: 24px;
    text-align: center;
    background: transparent;
    border: none; border-bottom: 2px solid rgba(0,0,0,0.20);
    outline: none; color: var(--black);
    transition: border-color 0.2s;
  }
  .otp-digit:focus { border-bottom-color: var(--black); }
  .otp-digit.input-error { border-bottom-color: #c0392b; }

  @media (max-width: 480px) {
    .auth-card { padding: 32px 22px 28px; }
    .otp-digit { width: 42px; height: 48px; font-size: 20px; }
  }