.gsi-material-button {
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  -webkit-appearance: none;
  background-color: WHITE;
  background-image: none;
  border: 1px solid #747775;
  -webkit-border-radius: 20px;
  border-radius: 20px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  color: #1f1f1f;
  cursor: pointer;
  font-family: 'Roboto', arial, sans-serif;
  font-size: 14px;
  height: 40px;
  letter-spacing: 0.25px;
  outline: none;
  overflow: hidden;
  padding: 0 12px;
  position: relative;
  text-align: center;
  -webkit-transition: background-color .218s, border-color .218s, box-shadow .218s;
  transition: background-color .218s, border-color .218s, box-shadow .218s;
  vertical-align: middle;
  white-space: nowrap;
  width: auto;
  max-width: 400px;
  min-width: min-content;
}

.gsi-material-button .gsi-material-button-icon {
  height: 20px;
  margin-right: 10px;
  min-width: 20px;
  width: 20px;
}

.gsi-material-button .gsi-material-button-content-wrapper {
  -webkit-align-items: center;
  align-items: center;
  display: flex;
  -webkit-flex-direction: row;
  flex-direction: row;
  -webkit-flex-wrap: nowrap;
  flex-wrap: nowrap;
  height: 100%;
  justify-content: space-between;
  position: relative;
  width: 100%;
}

.gsi-material-button .gsi-material-button-contents {
  -webkit-flex-grow: 1;
  flex-grow: 1;
  font-family: 'Roboto', arial, sans-serif;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: top;
}

.gsi-material-button .gsi-material-button-state {
  -webkit-transition: opacity .218s;
  transition: opacity .218s;
  bottom: 0;
  left: 0;
  opacity: 0;
  position: absolute;
  right: 0;
  top: 0;
}

.gsi-material-button:disabled {
  cursor: default;
  background-color: #ffffff61;
  border-color: #1f1f1f1f;
}

.gsi-material-button:disabled .gsi-material-button-contents {
  opacity: 38%;
}

.gsi-material-button:disabled .gsi-material-button-icon {
  opacity: 38%;
}

.gsi-material-button:not(:disabled):active .gsi-material-button-state, 
.gsi-material-button:not(:disabled):focus .gsi-material-button-state {
  background-color: #303030;
  opacity: 12%;
}

.gsi-material-button:not(:disabled):hover {
  -webkit-box-shadow: 0 1px 2px 0 rgba(60, 64, 67, .30), 0 1px 3px 1px rgba(60, 64, 67, .15);
  box-shadow: 0 1px 2px 0 rgba(60, 64, 67, .30), 0 1px 3px 1px rgba(60, 64, 67, .15);
}

.gsi-material-button:not(:disabled):hover .gsi-material-button-state {
  background-color: #303030;
  opacity: 8%;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
    html, body {
      height: 100%;
      font-family: 'Roboto', Arial, sans-serif;
      color: #202124;
      background: #fff;
      overflow: hidden;
    }

    .auth-window {
      width: 100%;
      height: 100vh;
      animation: window-appear 220ms ease-out;
    }
    @keyframes window-appear {
      from { opacity: 0; transform: scale(0.96); }
      to   { opacity: 1; transform: scale(1); }
    }

    .auth-pane-stack {
      position: relative;
      height: 100%;
      overflow: hidden;
    }
    .auth-pane {
      position: absolute;
      inset: 0;
      padding: 48px 44px 32px;
      opacity: 0;
      transform: translateX(36px);
      pointer-events: none;
      transition: opacity 250ms ease, transform 250ms ease;
    }
    .auth-pane.is-active {
      opacity: 1;
      transform: translateX(0);
      pointer-events: auto;
    }
    .auth-pane.is-leaving {
      opacity: 0;
      transform: translateX(-36px);
    }

    .logo-pill {
      display: inline-block;
      background: #003057;
      padding: 6px 10px;
      border-radius: 4px;
      margin-bottom: 16px;
    }
    .logo-pill img {
      display: block;
      height: 22px;
    }

    .auth-title {
      font-family: 'IBM Plex Sans', Arial, sans-serif;
      font-size: 24px;
      font-weight: 400;
      margin: 8px 0;
    }
    .auth-subtitle {
      font-size: 16px;
      margin-bottom: 32px;
    }

    .auth-field {
      position: relative;
      margin: 16px 0 8px;
    }
    .auth-field input {
      width: 100%;
      height: 56px;
      padding: 13px 15px;
      font-size: 16px;
      font-family: inherit;
      background: transparent;
      border: 1px solid #dadce0;
      border-radius: 4px;
      outline: none;
    }
    .auth-field input:focus {
      border: 2px solid #b3a369;
      padding: 12px 14px;
    }
    .auth-field label {
      position: absolute;
      left: 8px;
      top: 50%;
      transform: translateY(-50%);
      padding: 0 8px;
      font-size: 16px;
      color: #5f6368;
      background: #fff;
      pointer-events: none;
      transition: all 150ms ease;
    }
    .auth-field input:focus + label,
    .auth-field input:not(:placeholder-shown) + label {
      top: 0;
      transform: translateY(-50%) scale(0.85);
      color: #1a73e8;
    }

    .auth-link {
      font-size: 14px;
      color: #003057;
      text-decoration: none;
      font-weight: 500;
    }
    .auth-link:hover { text-decoration: underline; }
    .auth-link-strong { font-weight: 600; }

    .auth-helper {
      font-size: 14px;
      color: #5f6368;
      line-height: 1.5;
      margin-top: 28px;
    }

    .auth-actions {
      position: absolute;
      bottom: 32px;
      left: 44px;
      right: 44px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .auth-btn {
      font-family: inherit;
      font-size: 14px;
      font-weight: 500;
      padding: 10px 24px;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      background: #1a73e8;
      color: #fff;
      position: relative;
      overflow: hidden;
      transition: background 150ms ease, box-shadow 150ms ease;
    }
    .auth-btn:hover {
      background: #1557b0;
      box-shadow: 0 1px 3px rgba(0,0,0,0.3);
    }
    .auth-btn:active { background: #1c3aa9; }

    .auth-ripple {
      position: absolute;
      border-radius: 50%;
      background: rgba(255,255,255,0.45);
      pointer-events: none;
      transform: scale(0);
      animation: ripple-expand 600ms ease-out;
    }
    @keyframes ripple-expand {
      to { transform: scale(4); opacity: 0; }
    }

    .auth-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 3px 12px 3px 3px;
      margin-bottom: 24px;
      background: #fff;
      border: 1px solid #dadce0;
      border-radius: 18px;
      cursor: pointer;
      font-family: inherit;
      font-size: 14px;
      color: #202124;
    }
    .auth-chip:hover { background: #f1f3f4; }

    .auth-chip-avatar {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: #003057;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 600;
      text-transform: uppercase;
      font-family: 'IBM Plex Sans', Arial, sans-serif;
    }
    .auth-chip-caret {
      color: #5f6368;
      font-size: 12px;
    }

    .auth-checkbox {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-top: 16px;
      font-size: 14px;
      cursor: pointer;
    }
    .auth-checkbox input {
      accent-color: #b3a369;
      width: 16px;
      height: 16px;
      cursor: pointer;
    }

    .auth-close {
      position: absolute;
      top: 12px;
      right: 12px;
      width: 36px;
      height: 36px;
      border: none;
      background: transparent;
      border-radius: 50%;
      cursor: pointer;
      color: #5f6368;
      font-size: 22px;
      line-height: 1;
      z-index: 10;
    }
    .auth-close:hover { background: #f1f3f4; }