.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.login-banner-img{
    border-radius: 0px;
}

.login-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-default-bg-color);
  padding: 2rem;
  min-height: calc(100vh - 4rem);
}

.login-frame {
  border-radius: 1.2rem;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 1);
  background: rgba(35, 35, 40, 0.85);
  backdrop-filter: blur(10px);
  overflow: hidden;
  width: min(100%, 460px);
  min-width: 380px;
  animation: fadeIn 0.5s ease-out;
}


.login-card-wrapper {
  max-width: 600px;
  margin: 0 auto;
}

.login-card {
  padding: 1.5rem;
  background: rgba(var(--md-sys-color-surface-rgb), 0.97);
  box-shadow: var(--md-elevation-level-3);
  border-radius: 1rem;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.login-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  min-height: auto;
  background-color: rgb(45,48,56);
  text-align: center;
}

.banner-title {
  margin: 0 !important;
  padding: 0;
  font-family: 'Retro Gaming', sans-serif;
  color: rgb(201,201,201);
  text-shadow:
    2px 2px 2px rgba(0,0,0,0.2),
    -2px -2px 2px rgba(0,0,0,0.2),
    2px -2px 2px rgba(0,0,0,0.2),
    -2px 2px 2px rgba(0,0,0,0.2);
  white-space: nowrap;
}

.banner-title .title-big {
  font-size: 2.8rem;
  margin-right: 0.3rem;
}
.banner-title .title-small {
  font-size: 1.6rem;
}

.form-group {
  margin: 1.25rem 1rem 0;
}

.form-group input {
  padding: 0.75rem;
  border: 2px solid var(--md-sys-color-outline-variant);
  border-radius: 0.5rem;
  background: rgba(0, 0, 0, 0.4);
  color: var(--md-sys-color-on-surface);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 1);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
  box-sizing: border-box;
}
.form-group input:focus {
  outline: none;
  border-color: var(--md-sys-color-primary);
  background: rgba(0, 0, 0, 0.3);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.8);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

button.md-button {
  width: calc(100% - 2rem);
  margin: 1.5rem 1rem;
  padding: 0.75rem;
  font-size: 1rem;
  border-radius: 0.5rem;
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s ease, transform 0.2s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}
button.md-button:hover {
  background: var(--md-sys-color-primary-container);
  transform: translateY(-2px);
}

.btn-spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid rgba(0, 0, 0, 0.7);
  border-top-color: transparent;
  border-radius: 50%;
  margin-left: 0.5em;
  vertical-align: middle;
  animation: spin 0.8s linear infinite;
}

button.md-button.loading {
  cursor: default;
  opacity: 0.8;
}
button.md-button.loading .btn-text {
  display: none;
}
button.md-button.loading .btn-spinner {
  visibility: visible;
  margin-left: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.error-message {
  display: none;
  margin: 1rem;
  color: red;
  text-align: center;
  font-size: 0.875rem;
}
.error .error-message {
  display: block;
}