body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      font-weight: 500;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    .auth-base-body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
      -webkit-font-smoothing: antialiased;

      background: white;
min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* Glassmorphism auth navbar */
    .auth-glass-nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(248, 250, 252, 0.78);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(148, 163, 184, 0.18);
      transition: transform 0.4s ease, opacity 0.3s ease, background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .auth-glass-nav.is-scrolled {
      background: rgba(248, 250, 252, 0.92);
      border-bottom-color: rgba(148, 163, 184, 0.28);
      box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
    }

    .auth-glass-nav.is-hidden {
      transform: translateY(-100%);
      opacity: 0;
    }

    .auth-nav-inner {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      padding: 0 24px;
      min-height: 64px;
    }

    .nav-brand {
      display: flex;
      align-items: center;
    }

    .brand-link {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 6px 10px;
      border-radius: 14px;
      text-decoration: none;
      color: #1e3a8a;
      font-weight: 600;
      font-size: 1rem;
      transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
    }

    .brand-link:hover {
      color: #0f172a;
      background: rgba(30, 64, 175, 0.08);
      transform: translateY(-1px);
    }

    .brand-icon {
      width: 28px;
      height: 28px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #1e40af;
      box-shadow: 0 6px 16px rgba(30, 64, 175, 0.18);
      transition: transform 0.3s ease;
    }

    .brand-link:hover .brand-icon {
      transform: translateY(-1px);
    }

    .logo-svg {
      width: 18px;
      height: 18px;
      color: #ffffff;
    }

    .brand-text {
      font-weight: 700;
      letter-spacing: -0.02em;
      font-size: 1rem;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 14px;
      border-radius: 9999px;
      border: none;
      background: transparent;
      color: #1f2937;
      font-weight: 500;
      font-size: 0.9rem;
      text-decoration: none;
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }

    .nav-link:hover {
      background: rgba(30, 64, 175, 0.08);
      color: #1e3a8a;
      transform: translateY(-1px);
    }

    .nav-link.nav-cta {
      background: #1e40af;
      color: #ffffff;
      font-weight: 600;
      padding: 8px 18px;
      box-shadow: 0 8px 20px rgba(30, 64, 175, 0.2);
    }

    .nav-link.nav-cta:hover {
      background: #2563eb;
      transform: translateY(-2px);
    }

    .nav-link i {
      font-size: 0.95rem;
    }

    @media (max-width: 1024px) {
      .auth-nav-inner {
        padding: 0 20px;
      }
    }

    @media (max-width: 768px) {
      .auth-nav-inner {
        min-height: 58px;
        gap: 16px;
      }

      .brand-text {
        font-size: 0.95rem;
      }
    }

    @media (max-width: 640px) {
      .auth-nav-inner {
        padding: 0 16px;
        min-height: 54px;
      }

      .nav-links {
        gap: 6px;
      }

      .nav-link {
        padding: 6px 12px;
        font-size: 0.85rem;
      }
    }

    @media (max-width: 480px) {
      .brand-text {
        display: none;
      }

      .brand-link {
        padding: 6px;
      }

      .nav-link {
        padding: 6px 10px;
        font-size: 0.8rem;
      }
    }

    .main-content {
      flex: 1;
      display: flex;
      flex-direction: column;
      padding-top: 0;
      /* Sticky nav doesn't need padding */
    }

    .auth-footer {
      background: #f8fafc;
      border-top: 1px solid #e2e8f0;
      color: #64748b;
      padding: 2rem 0;
      margin-top: auto;
    }

    .auth-footer a {
      color: #64748b;
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .auth-footer a:hover {
      color: #1e40af;
    }

    .auth-container {
      max-width: 600px !important;
      width: 100% !important;
    }

    .auth-card {
      width: 100% !important;
      padding: 3rem !important;
    }

    @media (max-width: 640px) {
      .auth-container {
        max-width: 95% !important;
      }

      .auth-card {
        padding: 2rem !important;
      }
    }

    .checkbox-group {
      margin: 1.5rem 0;
    }

    .checkbox-label {
      display: flex;
      align-items: center;
      cursor: pointer;
      font-weight: 500;
      color: var(--text);
    }

    .checkbox-input {
      display: none;
    }

    .checkbox-custom {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 24px !important;
      height: 24px;
      border: 2px solid var(--border-2, var(--lockin-gray-300, #d1d5db));
      border-radius: 6px;
      margin-right: 0.75rem;
      position: relative;
      transition: all 0.2s ease;
      background: var(--surface, #ffffff);
      flex-shrink: 0;
      vertical-align: middle;
    }

    .checkbox-custom::after {
      content: '✓';
      position: absolute;
      color: white;
      font-weight: bold;
      font-size: 14px;
      opacity: 0;
      transform: scale(0.5);
      transition: opacity 0.2s ease, transform 0.2s ease;
    }

    .checkbox-input:checked+.checkbox-custom {
      background-color: var(--primary, #1e40af) !important;
      border-color: var(--primary, #1e40af);
      transform: scale(1.05);
    }

    .checkbox-input:checked+.checkbox-custom::after {
      opacity: 1;
      transform: scale(1);
    }

    .checkbox-text {
      font-size: 1rem;
    }