*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      background: #202124;
      color: #fff;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      position: relative;
    }

    /* WebGL Canvas */
    #bg-canvas {
      position: fixed;
      top: 0; left: 0;
      width: 100%; height: 100%;
      z-index: 0;
      pointer-events: none;
    }

    /* Split Layout */
    .login-wrapper {
      position: relative;
      z-index: 10;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      min-height: 100vh;
      padding: 2rem;
    }

    /* Logo - left side, large */
    .login-brand {
      position: fixed;
      left: 8vw;
      top: 50%;
      transform: translateY(-50%);
      z-index: 10;
    }
    .login-brand svg {
      height: 36px;
      width: auto;
      opacity: .9;
    }

    /* Login Card */
    .login-card {
      position: relative;
      background: #fff;
      border-radius: 10px 50px 10px 50px;
      padding: 0;
      width: 460px;
      min-height: 640px;
      display: flex;
      flex-direction: column;
      box-shadow: 0 25px 60px rgba(0,0,0,.4);
      color: #1a1a2e;
    }

    /* View panel takes full card height */
    .view-panel.active {
      display: flex;
      flex-direction: column;
      flex: 1;
      padding: 90px 3rem 50px;
      animation: fadeSlideIn .4s cubic-bezier(.4,0,.2,1);
    }

    /* Title — top area */
    .login-header {
      text-align: center;
      flex-shrink: 0;
    }
    .login-title {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      font-size: 35px;
      font-weight: 700;
      text-align: center;
      margin-bottom: .25rem;
      font-style: normal;
      color: #202124;
    }
    .login-subtitle {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      text-align: center;
      color: #9AA0B7;
      font-size: 16px;
      font-weight: 400;
      margin-bottom: 0;
    }

    /* Form — centered vertically in remaining space */
    .login-form-wrap {
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    /* Language — bottom area */
    .lang-dropdown {
      flex-shrink: 0;
      position: relative;
      display: inline-flex;
    }

    /* Form */
    .form-group {
      margin-bottom: 1.5rem;
    }
    .form-input {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      width: 100%;
      padding: 1rem 1.2rem;
      border: 1.5px solid #e2e5ea;
      border-radius: 12px;
      font-size: 16px;
      font-weight: 400;
      outline: none;
      transition: border-color .25s, box-shadow .25s;
      background: #fff;
      color: #202124;
    }
    .form-input::placeholder { color: #9AA0B7; }
    .form-input:focus {
      border-color: #202124;
      box-shadow: none;
      color: #202124;
    }
    .form-input:not(:placeholder-shown) {
      border-color: #202124;
      color: #202124;
    }

    /* Links */
    .forgot-link {
      display: block;
      text-align: right;
      font-size: .88rem;
      color: #4a6cf7;
      text-decoration: none;
      margin-top: -.5rem;
      margin-bottom: 2rem;
      cursor: pointer;
      transition: color .2s;
    }
    .forgot-link:hover { color: #3a5ce5; }

    /* Button */
    .btn-login {
      width: 100%;
      padding: 1.05rem;
      border: none;
      border-radius: 12px;
      font-size: 1.05rem;
      font-weight: 600;
      font-family: inherit;
      cursor: pointer;
      transition: all .25s ease;
      background: #202124;
      color: #fff;
    }
    .btn-login:hover {
      background: #333338;
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(32,33,36,.4);
    }
    .btn-login:active { transform: translateY(0); }

    /* View transitions */
    .view-panel { display: none; }
    .lang-toggle {
      display: flex;
      align-items: center;
      gap: .4rem;
      padding: .4rem .7rem;
      border: none;
      background: none;
      font-size: .82rem;
      font-family: inherit;
      color: #8890a4;
      cursor: pointer;
      transition: color .2s;
    }
    .lang-toggle:hover { color: #1a1a2e; }
    .lang-flag { font-size: 1.1rem; }
    .lang-arrow {
      font-size: .6rem;
      transition: transform .2s;
    }
    .lang-dropdown.open .lang-arrow { transform: rotate(180deg); }
    .lang-menu {
      position: absolute;
      bottom: 100%;
      left: 0;
      background: #fff;
      border: 1px solid #e8e8ed;
      border-radius: 8px;
      box-shadow: 0 4px 16px rgba(0,0,0,.1);
      overflow: hidden;
      opacity: 0;
      transform: translateY(4px);
      pointer-events: none;
      transition: all .2s ease;
      min-width: 130px;
      margin-bottom: 4px;
    }
    .lang-dropdown.open .lang-menu {
      opacity: 1;
      transform: translateY(0);
      pointer-events: all;
    }
    .lang-option {
      display: flex;
      align-items: center;
      gap: .5rem;
      padding: .5rem .8rem;
      font-size: .82rem;
      color: #555;
      text-decoration: none;
      transition: background .15s;
    }
    .lang-option:hover { background: #f5f5f8; }
    .lang-option.active { color: #1a1a2e; font-weight: 500; background: #f0f2ff; }

    /* Build Info — under card */
    .build-info {
      text-align: center;
      font-size: .7rem;
      color: rgba(255,255,255,.25);
      z-index: 10;
      letter-spacing: .02em;
      margin-top: 1rem;
    }

    /* Card column wrapper */
    .login-column {
      display: flex;
      flex-direction: column;
      align-items: center;
      margin-left: auto;
      margin-right: 8vw;
    }

    /* Error/Success */
    .alert {
      padding: .7rem 1rem;
      border-radius: 8px;
      font-size: .83rem;
      margin-bottom: 1.25rem;
      animation: fadeSlideIn .3s ease;
    }
    .alert-danger { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
    .alert-success { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; }

    @keyframes fadeSlideIn {
      from { opacity: 0; transform: translateY(12px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* Back link — centered below button */
    .back-link-center {
      display: block;
      text-align: center;
      font-size: .88rem;
      color: #4a6cf7;
      text-decoration: none;
      margin-top: 1.2rem;
      cursor: pointer;
      transition: color .2s;
    }
    .back-link-center:hover { color: #3a5ce5; }

    /* Description text (forgot password) */
    .login-description {
      font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
      text-align: center;
      color: #9AA0B7;
      font-size: 16px;
      font-weight: 400;
      margin-top: .75rem;
    }

    /* Sent email display */
    .sent-email-display {
      text-align: center;
      font-size: 1.2rem;
      font-weight: 500;
      color: #202124;
      margin-bottom: 2rem;
    }

    /* Back link (old style - keep for compat) */
    .back-link {
      display: inline-flex;
      align-items: center;
      gap: .4rem;
      font-size: .83rem;
      color: #8890a4;
      text-decoration: none;
      margin-bottom: 1.5rem;
      cursor: pointer;
      transition: color .2s;
    }
    .back-link:hover { color: #1a1a2e; }

    /* Success icon */
    .success-icon {
      width: 64px;
      height: 64px;
      border-radius: 50%;
      background: #f0fdf4;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 1.5rem;
      animation: scaleIn .5s cubic-bezier(.4,0,.2,1);
    }
    .success-icon svg { width: 32px; height: 32px; color: #16a34a; }

    @keyframes scaleIn {
      from { opacity: 0; transform: scale(.5); }
      to { opacity: 1; transform: scale(1); }
    }

    /* Responsive */
    @media (max-width: 900px) {
      .login-brand { display: none; }
      .login-column { margin: 0 auto; }
      .login-card { width: 100%; max-width: 460px; min-height: auto; }
    }
    @media (max-width: 480px) {
      .login-card { padding: 2.5rem 1.5rem 1.5rem; border-radius: 10px 30px 10px 30px; min-height: auto; }
    }