body {
  font-family: Arial, sans-serif;
  background-color: var(--md-sys-color-surface-container, #f4f7f6);
  color: var(--md-sys-color-on-surface, #1C1B1F);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
  box-sizing: border-box;
}
.container {
  background-color: var(--md-sys-color-surface, #ffffff);
  padding: 40px;
  border-radius: var(--md-sys-shape-corner-large, 24px);
  box-shadow: var(--md-sys-elevation-3, 0 4px 6px rgba(0, 0, 0, 0.1));
  text-align: center;
  width: 100%;
  max-width: 400px;
}
h2 {
  margin-top: 0;
  color: var(--md-sys-color-on-surface, #333);
}
input[type="password"], input[type="text"] {
  width: 100%;
  padding: 12px;
  margin: 20px 0;
  border: 1px solid var(--md-sys-color-outline, #ccc);
  border-radius: var(--md-sys-shape-corner-small, 4px);
  background-color: var(--md-sys-color-surface-container-low, #f9f9f9);
  color: var(--md-sys-color-on-surface, #1C1B1F);
  box-sizing: border-box;
  font-size: 16px;
  transition: border-color 0.2s;
}
input[type="password"]:focus, input[type="text"]:focus {
  border-color: var(--md-sys-color-primary, #1A1A1A);
  border-width: 2px;
  padding: 11px; /* compensate for 2px border */
  outline: none;
}

#password, #password:focus {
  padding-right: 48px !important; /* give space for the eye icon so text doesn't overlap */
  width: 100% !important;
  box-sizing: border-box !important;
}

button {
  padding: 12px;
  background-color: var(--md-sys-color-primary, #1A1A1A);
  color: var(--md-sys-color-on-primary, #ffffff);
  border: none;
  border-radius: var(--md-sys-shape-corner-full, 9999px);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.2, 0, 0, 1);
  width: 100%;
  box-shadow: var(--md-sys-elevation-1, 0 1px 3px rgba(0,0,0,0.15));
}
button:hover {
  background-color: rgba(26, 26, 26, 0.92);
  box-shadow: var(--md-sys-elevation-2, 0 2px 6px rgba(0,0,0,0.15));
  transform: translateY(-1px);
}
button:active {
  transform: scale(0.96);
  box-shadow: var(--md-sys-elevation-1, 0 1px 3px rgba(0,0,0,0.15));
}
.error {
  color: #B3261E; /* MD3 Error Color */
  font-size: 14px;
  margin-top: 10px;
  display: block;
}