/* Atomurus UI V2 — auth layout (login / signup / recover / reset)
   Loaded only on login.html. Tokens come from assets/ui/index.css.
   Panel show/hide and password-toggle hooks stay here; chrome stays public-shell. */

.auth-shell {
  width: min(1120px, calc(100% - var(--space-6)));
  margin: var(--space-6) auto var(--space-5);
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
  color: var(--color-text);
  font-family: var(--font-ui);
}

.auth-rail,
.auth-stage {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.auth-rail {
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-4);
  position: sticky;
  top: calc(var(--ui-topbar) + var(--space-4));
}

.auth-stage {
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
}

.auth-rail-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 4vw, 2.125rem);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin: 0 0 var(--space-3);
}

.auth-rail-copy {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-4);
}

.auth-rail-list {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.auth-rail-stat {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background: var(--color-bg);
}

.auth-rail-stat .lbl {
  display: block;
  color: var(--color-text-muted);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  margin-bottom: var(--space-1);
}

.auth-rail-stat .v {
  color: var(--color-text);
  font-size: var(--text-sm);
  line-height: var(--leading-snug);
}

.auth-rail-links {
  display: grid;
  gap: var(--space-2);
}

.auth-rail-links a {
  color: var(--color-brand);
  text-decoration: none;
  font-size: var(--text-sm);
}

.auth-rail-links a:hover {
  color: var(--color-text);
  text-decoration: underline;
}

.auth-stage-head {
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-5);
}

.auth-stage-kicker {
  color: var(--color-text-muted);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  margin-bottom: var(--space-2);
}

.auth-stage-title {
  color: var(--color-text);
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.125rem, 6vw, 3.5rem);
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-2);
}

.auth-stage-desc {
  color: var(--color-text-muted);
  max-width: 40rem;
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin: 0;
}

.auth-panel { display: none; }
.auth-panel.active { display: block; }

html.auth-checking .auth-panel { display: none !important; }

.auth-session-boot {
  display: none;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) 0 var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

html.auth-checking .auth-session-boot { display: flex; }

.auth-panel h2 {
  color: var(--color-text);
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--text-3xl);
  line-height: var(--leading-tight);
  margin: 0 0 var(--space-3);
}

.auth-panel p.auth-panel-copy {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-5);
  max-width: 40rem;
}

.auth-panel .lc-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-2);
  max-width: 40rem;
}

.auth-panel .lc-form .field,
.auth-panel .ui-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

html body .auth-shell .lc-form label.ui-label {
  font-family: var(--font-ui) !important;
  letter-spacing: 0 !important;
  text-transform: none;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.auth-inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-4) 0 var(--space-1);
  align-items: center;
}

.auth-inline-link {
  color: var(--color-brand);
  text-decoration: none;
  font-size: var(--text-sm);
  padding-bottom: 1px;
  border-bottom: 1px solid color-mix(in oklab, var(--color-brand) 45%, transparent);
}

.auth-inline-link:hover { color: var(--color-text); }

.auth-subtle-box {
  margin-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
}

.auth-subtle-box .hint {
  color: var(--color-text-muted);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  margin-bottom: var(--space-2);
}

.auth-subtle-box .actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.auth-subtle-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
}

.auth-subtle-btn svg { opacity: 0.8; }

.auth-fineprint {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-top: var(--space-2);
}

.auth-pw-reqs {
  list-style: none;
  margin: var(--space-2) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
}

.auth-pw-reqs li.is-ok { color: var(--color-success); }

.auth-panel .lc-form .feedback,
.auth-panel .feedback.ui-alert {
  display: none;
  margin-top: var(--space-3);
  font-family: var(--font-ui);
}

.auth-panel .lc-form .feedback.show,
.auth-panel .feedback.ui-alert.show {
  display: grid;
}

.auth-password-wrap {
  position: relative;
}

.auth-password-wrap input {
  padding-right: 72px;
  width: 100%;
}

html body .auth-shell .lc-form button.ui-btn-primary[type=submit],
html body .auth-shell .auth-primary-btn.ui-btn-primary {
  align-self: flex-start;
  width: auto;
  min-width: 220px;
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-on-ink);
}

html[data-theme="dark"] body .auth-shell .lc-form button.ui-btn-primary[type=submit],
html[data-theme="dark"] body .auth-shell .auth-primary-btn.ui-btn-primary {
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-on-ink);
}

@media (max-width: 920px) {
  .auth-shell { grid-template-columns: 1fr; }
  .auth-rail { position: static; }
  .auth-stage { padding: var(--space-5) var(--space-4); }
}