/* Login / upgrade / change-password / server-unavailable — tokens from tokens.css */

html.auth-pending #app,
html.auth-pending .toast-stack {
  visibility: hidden;
}

.login-shell,
.upgrade-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: stretch;
  justify-content: center;
  background: var(--paper);
  color: var(--ink);
  overflow: auto;
}

.login-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: min(960px, 100%);
  margin: auto;
  min-height: min(560px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-tab);
  overflow: hidden;
}

.login-layout-single {
  grid-template-columns: 1fr;
  max-width: 420px;
}

.login-brand {
  padding: 40px 32px;
  background: var(--accent-tint);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.login-brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.4rem;
}

.login-brand-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.login-brand-sub {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.5;
}

.login-brand-points {
  margin: 8px 0 0;
  padding-left: 1.2em;
  color: var(--ink);
  line-height: 1.7;
}

.login-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 28px;
}

.login-card,
.upgrade-card {
  width: min(360px, 100%);
}

.login-title,
.upgrade-title {
  margin: 0 0 6px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
}

.login-hint,
.upgrade-msg,
.upgrade-hint,
.upgrade-meta {
  margin: 0 0 16px;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.45;
}

.login-field {
  margin-bottom: 14px;
}

.login-field label {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: var(--ink);
}

.login-field input {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
}

.login-field input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.login-pass-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.login-pass-row input {
  flex: 1;
}

.login-toggle-pass {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
  border-radius: var(--radius);
  padding: 0 12px;
  cursor: pointer;
  white-space: nowrap;
}

.login-field-err,
.login-error {
  color: var(--danger);
  font-size: 0.9rem;
  margin: 6px 0 0;
}

.login-caps {
  color: var(--amber);
  font-size: 0.85rem;
  margin: 4px 0 0;
}

.login-submit {
  width: 100%;
  margin-top: 8px;
  position: relative;
  min-height: 40px;
}

.login-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: login-spin 0.7s linear infinite;
  vertical-align: middle;
}

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

@media (prefers-reduced-motion: reduce) {
  .login-spinner { animation: none; }
}

.login-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.login-help {
  color: var(--accent-dark);
}

.upgrade-overlay {
  align-items: center;
}

.upgrade-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-tab);
}

.upgrade-card .btn {
  width: 100%;
  margin-top: 8px;
}

@media (max-width: 819px) {
  .login-brand {
    display: none;
  }
  .login-layout {
    grid-template-columns: 1fr;
    max-width: 420px;
    border: none;
    box-shadow: none;
    background: transparent;
  }
  .login-panel {
    padding: 24px 16px;
  }
  .login-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px 20px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f172a;
    --surface: #1e293b;
    --ink: #f1f5f9;
    --ink-soft: #94a3b8;
    --line: #334155;
    --line-soft: #1e293b;
    --accent-tint: #1a2e2a;
  }
}

.offline-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9990;
  padding: 10px 16px;
  background: var(--amber, #9C6B15);
  color: #fff;
  text-align: center;
  font-size: 0.9rem;
}