.auth-shell {
  position: fixed;
  z-index: 100;
  inset: 0;
  min-width: 320px;
  min-height: 100dvh;
  overflow: auto;
  background:
    radial-gradient(circle at 50% 18%, color-mix(in srgb, var(--brand-primary) 13%, transparent), transparent 34%),
    linear-gradient(155deg, var(--brand-dark-surface), var(--brand-graphite) 58%, var(--brand-graphite));
  color: var(--brand-white);
}

.auth-shell[hidden],
.app-shell[hidden] {
  display: none !important;
}

body.auth-active {
  overflow: hidden;
  background: var(--brand-graphite);
}

.auth-page,
.auth-splash {
  position: relative;
  display: grid;
  width: 100%;
  min-width: 0;
  min-height: 100dvh;
  padding: calc(24px + env(safe-area-inset-top)) 18px calc(24px + env(safe-area-inset-bottom));
  grid-template-columns: minmax(0, 1fr);
  place-items: center;
}

.auth-panel {
  width: 100%;
  min-width: 0;
  max-width: 430px;
  padding: 24px 20px 22px;
  border: 1px solid color-mix(in srgb, var(--brand-white) 13%, transparent);
  border-radius: 24px;
  background: color-mix(in srgb, var(--brand-graphite) 88%, transparent);
  box-shadow: 0 24px 80px color-mix(in srgb, var(--brand-graphite) 68%, transparent);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.auth-brand {
  display: grid;
  justify-items: center;
  text-align: center;
}

.auth-brand img {
  width: 116px;
  height: 96px;
  border-radius: 22px;
  object-fit: contain;
  box-shadow: 0 0 42px color-mix(in srgb, var(--brand-primary) 16%, transparent);
}

.auth-brand > div {
  display: grid;
  margin-top: 12px;
  gap: 5px;
}

.auth-brand .auth-wordmark {
  display: flex;
  justify-content: center;
  color: var(--brand-white);
  font-size: 2rem;
  font-weight: 880;
  letter-spacing: -0.055em;
  line-height: 1;
}

.auth-brand .auth-wordmark span:last-child {
  color: var(--brand-primary);
}

.auth-brand > div > span {
  color: color-mix(in srgb, var(--brand-white) 76%, transparent);
  font-size: 0.69rem;
  font-weight: 650;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.auth-brand.is-compact img {
  width: 86px;
  height: 72px;
  border-radius: 17px;
}

.auth-brand.is-compact .auth-wordmark {
  font-size: 1.6rem;
}

.auth-brand.is-compact > div > span {
  font-size: 0.58rem;
}

.auth-copy {
  margin: 28px 0 22px;
  text-align: center;
}

.auth-kicker {
  margin: 0 0 7px;
  color: var(--brand-primary);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.auth-copy h1 {
  margin: 0;
  color: var(--brand-white);
  font-size: clamp(1.7rem, 8vw, 2.1rem);
  font-weight: 850;
  letter-spacing: -0.04em;
}

.auth-copy > p:last-child {
  max-width: 330px;
  margin: 8px auto 0;
  color: color-mix(in srgb, var(--brand-white) 68%, transparent);
  font-size: 0.9rem;
  line-height: 1.45;
}

.auth-form,
.auth-field {
  display: grid;
}

.auth-form {
  gap: 15px;
}

.auth-field {
  gap: 7px;
}

.auth-field label {
  color: color-mix(in srgb, var(--brand-white) 78%, transparent);
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.03em;
}

.auth-field > input,
.auth-input-wrap {
  min-height: 50px;
  border: 1px solid color-mix(in srgb, var(--brand-white) 17%, transparent);
  border-radius: 12px;
  background: color-mix(in srgb, var(--brand-white) 7%, transparent);
}

.auth-field > input {
  width: 100%;
  min-width: 0;
  padding: 0 14px;
  outline: 0;
  color: var(--brand-white);
  font-size: 1rem;
}

.auth-input-wrap input {
  width: 100%;
  min-width: 0;
  padding: 0 14px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--brand-white);
  font-size: 1rem;
}

.auth-field > input:focus,
.auth-input-wrap:focus-within {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-primary) 18%, transparent);
}

.auth-input-wrap {
  display: flex;
  align-items: center;
}

.auth-input-wrap input {
  min-height: 48px;
}

.auth-visibility {
  display: grid;
  width: 48px;
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  border: 0;
  place-items: center;
  background: transparent;
  color: color-mix(in srgb, var(--brand-white) 72%, transparent);
}

.auth-primary {
  display: flex;
  width: 100%;
  min-height: 50px;
  margin-top: 3px;
  padding: 0 18px;
  border: 1px solid var(--brand-primary);
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  background: var(--brand-primary);
  color: var(--brand-graphite);
  font-weight: 850;
}

.auth-primary:hover:not(:disabled),
.auth-primary:active:not(:disabled) {
  border-color: var(--brand-primary-hover);
  background: var(--brand-primary-hover);
}

.auth-primary:disabled,
.auth-google:disabled,
.auth-field input:disabled {
  cursor: wait;
  opacity: 0.72;
}

.auth-separator {
  display: flex;
  margin: 17px 0 14px;
  align-items: center;
  gap: 12px;
  color: color-mix(in srgb, var(--brand-white) 48%, transparent);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: lowercase;
}

.auth-separator::before,
.auth-separator::after {
  height: 1px;
  flex: 1;
  background: color-mix(in srgb, var(--brand-white) 14%, transparent);
  content: "";
}

.auth-google {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 50px;
  padding: 0 16px 0 12px;
  border: 1px solid #747775;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #ffffff;
  color: #1f1f1f;
  font-family: "Google Sans", Roboto, Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
}

.auth-google:hover:not(:disabled),
.auth-google:active:not(:disabled) {
  background: #f8f9fa;
  border-color: #5f6368;
}

.auth-google img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.auth-google-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid #dadce0;
  border-top-color: #4285f4;
  border-radius: 50%;
  animation: turnusgo-spin 700ms linear infinite;
}

.auth-message {
  min-height: 19px;
  margin: -2px 0 0;
  color: color-mix(in srgb, var(--brand-white) 70%, transparent);
  font-size: 0.78rem;
  line-height: 1.4;
}

.auth-message.is-error {
  color: color-mix(in srgb, var(--tt-error) 48%, var(--brand-white));
}

.auth-message.is-notice {
  color: color-mix(in srgb, var(--tt-success) 42%, var(--brand-white));
}

.auth-switch-copy {
  margin: 20px 0 0;
  color: color-mix(in srgb, var(--brand-white) 66%, transparent);
  font-size: 0.84rem;
  text-align: center;
}

.auth-switch-copy button {
  min-height: 42px;
  padding: 0 6px;
  border: 0;
  background: transparent;
  color: var(--brand-primary);
  font-weight: 800;
}

.auth-forgot-link,
.auth-secondary-link {
  min-height: 42px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--brand-primary);
  font-size: 0.82rem;
  font-weight: 780;
}

.auth-forgot-link {
  justify-self: end;
  margin-top: -8px;
}

.auth-secondary-link {
  width: 100%;
  margin-top: 10px;
}

.auth-status-actions,
.auth-legacy-actions {
  display: grid;
  gap: 8px;
}

.auth-requirement,
.auth-legacy-note {
  margin: -5px 0 0;
  color: color-mix(in srgb, var(--brand-white) 56%, transparent);
  font-size: 0.74rem;
  line-height: 1.4;
}

.auth-legacy-note {
  margin-top: 16px;
  text-align: center;
}

.auth-language {
  position: absolute;
  z-index: 2;
  top: calc(14px + env(safe-area-inset-top));
  right: 16px;
  display: flex;
  padding: 3px;
  border: 1px solid color-mix(in srgb, var(--brand-white) 13%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--brand-graphite) 72%, transparent);
}

.auth-language button {
  min-width: 38px;
  min-height: 34px;
  padding: 0 7px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: color-mix(in srgb, var(--brand-white) 56%, transparent);
  font-size: 0.7rem;
  font-weight: 800;
}

.auth-language button.active {
  background: var(--brand-primary);
  color: var(--brand-graphite);
}

.auth-confirmation-email {
  display: block;
  margin-top: 14px;
  color: var(--brand-white);
  font-size: 0.9rem;
}

.auth-button-spinner,
.auth-google-spinner,
.auth-loading-line {
  display: block;
  border-radius: 999px;
  background: var(--brand-primary);
}

.auth-button-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid color-mix(in srgb, var(--brand-graphite) 25%, transparent);
  border-top-color: var(--brand-graphite);
  background: transparent;
  animation: turnusgo-spin 700ms linear infinite;
}

.auth-loading-line {
  width: 76px;
  height: 3px;
  margin-top: 28px;
  transform-origin: left;
  animation: turnusgo-loading 1.1s ease-in-out infinite alternate;
}

.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;
}

@keyframes turnusgo-loading {
  from { opacity: 0.42; transform: scaleX(0.35); }
  to { opacity: 1; transform: scaleX(1); }
}

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

@media (min-width: 720px) {
  .auth-panel {
    padding: 30px 32px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-button-spinner,
  .auth-loading-line {
    animation: none;
  }
}