.auth-shell {
  --app-bg: #f0f7f4;
  --app-surface: #ffffff;
  --app-surface-2: #e8f3ee;
  --app-text: #0d1f1a;
  --app-muted: #4a6d5e;
  --app-positive: #059669;
  --app-negative: #dc2626;
  --app-accent: #10b981;

  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1rem;
  background:
    radial-gradient(ellipse 70% 50% at 0% 0%, color-mix(in oklab, var(--app-accent) 14%, transparent), transparent),
    radial-gradient(ellipse 55% 45% at 100% 100%, color-mix(in oklab, var(--app-positive) 10%, transparent), transparent),
    var(--app-bg);
  color: var(--app-text);
}

[data-bs-theme='dark'] .auth-shell {
  --app-bg: #0b1120;
  --app-surface: #111827;
  --app-surface-2: #1a2535;
  --app-text: #e2e8f0;
  --app-muted: #94a3b8;
  --app-positive: #059669;
  --app-negative: #dc2626;
  --app-accent: #10b981;
}

body:has(> .auth-shell) {
  background: var(--app-bg);
}

.auth-wrap {
  width: 100%;
  max-width: 28rem;
}

.auth-hero {
  text-align: center;
  margin-bottom: 1.75rem;
}

.auth-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--app-positive), var(--app-accent));
  color: #fff;
  box-shadow: 0 14px 30px color-mix(in oklab, var(--app-accent) 28%, transparent);
}

.auth-kicker {
  color: var(--app-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.auth-title {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--app-text);
  margin: 0;
}

.auth-title-accent {
  background: linear-gradient(135deg, var(--app-positive), var(--app-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.auth-subtitle {
  color: var(--app-muted);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0.6rem 0 0;
}

.auth-card {
  background: var(--app-surface);
  border: 1px solid color-mix(in oklab, var(--app-text) 10%, transparent);
  border-radius: 1.25rem;
  padding: 1.75rem;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 24px 48px -12px color-mix(in oklab, var(--app-accent) 18%, rgba(0, 0, 0, 0.08));
}

[data-bs-theme='dark'] .auth-card {
  border-color: color-mix(in oklab, var(--app-text) 14%, transparent);
}

[data-bs-theme='dark'] .auth-card {
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.4),
    0 24px 48px -12px rgba(0, 0, 0, 0.5);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.auth-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--app-text);
  display: block;
}

.auth-required {
  color: var(--app-negative);
  margin-left: 0.25rem;
}

.auth-input {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  background-color: var(--app-surface);
  background-image: none;
  border-style: solid;
  border-width: 1px;
  border-color: color-mix(in oklab, var(--app-text) 18%, transparent);
  border-radius: 0.75rem;
  color: var(--app-text);
  font-size: 0.9rem;
  font-family: inherit;
  line-height: 1.4;
  padding: 0.65rem 0.85rem;
  min-height: 2.65rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

[data-bs-theme='dark'] .auth-input {
  background-color: var(--app-surface-2);
  border-color: color-mix(in oklab, var(--app-text) 22%, transparent);
  box-shadow: none;
}

.auth-input::placeholder {
  color: color-mix(in oklab, var(--app-muted) 70%, transparent);
}

.auth-input:focus {
  outline: none;
  border-color: var(--app-accent);
  background: var(--app-surface);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--app-accent) 18%, transparent);
}

.auth-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-check {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--app-text);
  cursor: pointer;
}

.auth-checkbox {
  width: 1rem;
  height: 1rem;
  accent-color: var(--app-accent);
}

.auth-help {
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--app-muted);
}

.auth-help ul {
  margin: 0;
  padding-left: 1.1rem;
  list-style: disc;
}

.auth-help li {
  margin: 0.1rem 0;
}

.auth-help p {
  margin: 0;
}

.auth-field-errors {
  color: var(--app-negative);
  font-size: 0.78rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.auth-field-errors p {
  margin: 0;
}

.auth-field.is-invalid .auth-input {
  border-color: var(--app-negative);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--app-negative) 16%, transparent);
}

.auth-error {
  border: 1px solid color-mix(in oklab, var(--app-negative) 30%, var(--app-border));
  background: color-mix(in oklab, var(--app-negative) 8%, var(--app-surface));
  color: var(--app-negative);
  border-radius: 0.85rem;
  padding: 0.65rem 0.85rem;
  font-size: 0.85rem;
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
}

.auth-error svg {
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.auth-actions {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.auth-button {
  appearance: none;
  -webkit-appearance: none;
  border-style: solid;
  border-width: 1px;
  border-color: transparent;
  border-radius: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  min-height: 2.75rem;
  width: 100%;
  text-decoration: none;
  font-family: inherit;
  line-height: 1.2;
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease, border-color 0.15s ease;
}

.auth-button:hover {
  transform: translateY(-1px);
}

.auth-button-primary,
button.auth-button-primary {
  background-color: var(--app-accent);
  background-image: linear-gradient(135deg, var(--app-positive), var(--app-accent));
  color: #fff !important;
  box-shadow: 0 10px 24px color-mix(in oklab, var(--app-accent) 30%, transparent);
}

.auth-button-primary:hover {
  box-shadow: 0 14px 30px color-mix(in oklab, var(--app-accent) 40%, transparent);
  filter: brightness(1.05);
}

.auth-button-ghost,
a.auth-button-ghost {
  background-color: var(--app-surface);
  background-image: none;
  border-color: color-mix(in oklab, var(--app-text) 18%, transparent);
  color: var(--app-text) !important;
}

.auth-button-ghost:hover {
  border-color: color-mix(in oklab, var(--app-text) 30%, transparent);
}

.auth-footer {
  margin-top: 1.25rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--app-muted);
}

.auth-footer a {
  color: var(--app-accent);
  font-weight: 600;
  text-decoration: none;
}

.auth-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 480px) {
  .auth-shell {
    padding: 1.25rem 0.75rem;
  }

  .auth-card {
    padding: 1.25rem;
    border-radius: 1rem;
  }

  .auth-actions {
    flex-direction: column;
  }

  .auth-button {
    width: 100%;
  }
}