/* ==========================================================================
   PLAY SCHOOL — Staff sign-in (standalone, no app shell)
   Depends on tokens + base reset + components from styles.css. The right
   panel is intentionally light (var(--raw-white)) per spec, while reusing
   every existing component (.input/.btn/.checkbox/.popover/...) unchanged —
   those are self-contained and already look correct on a light surface.
   ========================================================================== */

html, body { height: 100%; }
.signin-shell {
  height: 100vh;
  display: flex;
}
/* No-scroll only applies at the desktop breakpoint where content is sized
   to fit exactly — tablet/mobile stack content and may legitimately need
   to scroll (see the max-width: 1023px override further down). */
@media (min-width: 1024px) {
  body { overflow: hidden; }
}

/* ---------- Branding panel ---------- */
.signin-brand {
  flex: 1 1 50%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  background: var(--color-background);
}
.signin-brand::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 25% 20%, color-mix(in srgb, var(--color-primary) 22%, transparent), transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 85%, color-mix(in srgb, var(--color-accent-yellow) 10%, transparent), transparent 70%);
  pointer-events: none;
}
.signin-brand__inner {
  position: relative;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-6);
}
.signin-brand__inner > * {
  opacity: 0;
  transform: translateY(14px);
  animation: signinBrandIn 650ms var(--ease-premium) forwards;
}
.signin-brand__logo { animation-delay: 40ms; }
.signin-brand__tagline { animation-delay: 300ms; }
@keyframes signinBrandIn { to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) {
  .signin-brand__inner > * { opacity: 1; transform: none; animation: none; }
}

.signin-brand__logo { display: flex; align-items: center; justify-content: center; gap: var(--space-4); margin-top: calc(-1 * var(--space-5)); }
.signin-brand__logo img { width: 64px; height: 64px; border-radius: var(--radius-md); flex-shrink: 0; }
.signin-brand__logo span {
  font-family: var(--font-display);
  font-weight: 560;
  font-size: var(--fs-h2);
  color: var(--raw-white);
}
.signin-brand__tagline {
  font-size: var(--fs-body-lg);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
  max-width: 32ch;
  margin-top: var(--space-6);
  margin-inline: auto;
}

/* Kids-playing illustration — clean navy line-art on a solid black
   background, screen-blended so the black drops out against the dark panel.
   Brightness/saturation are pushed up so it reads as a vivid, electric blue
   rather than the source art's flatter navy ink. A one-time entrance (fade +
   rise) is the only motion — no continuous pulsing. */
.signin-brand__art {
  width: 100%;
  max-width: 340px;
  height: auto;
  margin-inline: auto;
  mix-blend-mode: lighten;
  filter: brightness(1.05) saturate(1.7)
    drop-shadow(0 0 10px color-mix(in srgb, var(--color-brand-blue) 40%, transparent));
  -webkit-mask-image: radial-gradient(ellipse 96% 96% at 50% 50%, #000 82%, transparent 100%);
  mask-image: radial-gradient(ellipse 96% 96% at 50% 50%, #000 82%, transparent 100%);
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px);
  animation: signinArtIn 650ms var(--ease-premium) 160ms forwards;
}
@keyframes signinArtIn { to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) {
  .signin-brand__art { animation: none; opacity: 1; transform: none; }
}

/* ---------- Form panel ---------- */
.signin-form-panel {
  flex: 1 1 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  overflow-y: auto;
  background: var(--raw-white);
  --signin-text-primary: var(--raw-ink-950);
  --signin-text-secondary: var(--raw-ink-500);
  --signin-text-muted: var(--raw-ink-400);
  --signin-border: var(--raw-ink-100);
}
.signin-form-wrap {
  width: 100%;
  max-width: 400px;
  opacity: 0;
  transform: translateY(14px);
  animation: signinFormIn 600ms var(--ease-premium) 80ms forwards;
}
@keyframes signinFormIn { to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) {
  .signin-form-wrap { opacity: 1; transform: none; animation: none; }
}

.signin-form-wrap .eyebrow { color: var(--signin-text-muted); }
.signin-heading {
  margin-top: var(--space-3);
  font-family: var(--font-display);
  font-weight: 560;
  font-size: var(--fs-h1);
  line-height: var(--lh-snug);
  color: var(--signin-text-primary);
}
.signin-subtitle {
  margin-top: var(--space-2);
  margin-bottom: var(--space-6);
  font-size: var(--fs-body);
  color: var(--signin-text-secondary);
}

.signin-form-wrap .inline-error,
.signin-form-wrap .inline-warning { margin-bottom: var(--space-5); align-items: flex-start; }
.signin-form-wrap .inline-error svg,
.signin-form-wrap .inline-warning svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.signin-lockout__timer { display: block; font-weight: 700; margin-top: 2px; }

#signinForm { display: flex; flex-direction: column; gap: var(--space-5); }
.signin-form-wrap .field__label { color: var(--signin-text-primary); }
.signin-form-wrap .field__error { color: var(--color-error); }
.signin-form-wrap .input { height: var(--control-h-lg); }

.input-wrap--password { position: relative; }
.input-wrap--password .input { padding-right: var(--space-8); }
.input-wrap__toggle {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 32px; height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: none;
  border: none;
  color: var(--signin-text-muted);
  cursor: pointer;
  transition: color var(--dur-normal) var(--ease-premium), background var(--dur-normal) var(--ease-premium);
}
.input-wrap__toggle:hover { color: var(--signin-text-primary); background: var(--signin-border); }
.input-wrap__toggle svg { width: 18px; height: 18px; }
[dir="rtl"] .input-wrap--password .input { padding-right: var(--space-4); padding-left: var(--space-8); }
[dir="rtl"] .input-wrap__toggle { right: auto; left: var(--space-3); }

.signin-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.signin-row .check-row label,
.signin-row__remember-label { color: var(--signin-text-secondary); font-size: var(--fs-body-sm); }
.signin-form-wrap .btn--text { color: var(--color-primary); font-size: var(--fs-body-sm); }
.signin-form-wrap .btn--text:hover { color: var(--color-primary-strong); }

.signin-submit { width: 100%; height: var(--control-h-lg); }

.signin-sso { margin-top: var(--space-5); }
.signin-divider-row { display: flex; align-items: center; gap: var(--space-4); margin-bottom: var(--space-5); }
.signin-divider-row .divider { flex: 1; margin: 0; }
.signin-divider-row span:not(.divider) { font-size: var(--fs-caption); color: var(--signin-text-muted); text-transform: uppercase; letter-spacing: var(--ls-wide); }
.signin-sso__btn { width: 100%; height: var(--control-h-lg); }

/* `.btn--secondary` is themed for the dark app shell (light text/translucent
   fill) and is nearly invisible on this page's white panel — repaint it for
   any secondary button used here (SSO, resend, etc). */
.signin-form-wrap .btn--secondary {
  background: var(--raw-white);
  color: var(--signin-text-primary);
  border-color: var(--signin-border);
}
.signin-form-wrap .btn--secondary:hover { border-color: var(--raw-ink-200); background: var(--raw-ink-50); }

.signin-footer {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--signin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.signin-footer__links { display: flex; gap: var(--space-5); }
.signin-footer__links a { font-size: var(--fs-body-sm); color: var(--signin-text-secondary); transition: color var(--dur-normal) var(--ease-premium); }
.signin-footer__links a:hover { color: var(--signin-text-primary); }

.signin-lang__trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  background: none;
  border: 1px solid var(--signin-border);
  color: var(--signin-text-secondary);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--dur-normal) var(--ease-premium), background var(--dur-normal) var(--ease-premium);
}
.signin-lang__trigger:hover { border-color: var(--raw-ink-200); background: var(--raw-ink-50); }
.signin-lang__trigger svg { width: 14px; height: 14px; color: var(--signin-text-muted); transition: transform var(--dur-normal) var(--ease-premium); }
.signin-flag { display: inline-flex; width: 18px; height: 13px; border-radius: 2px; overflow: hidden; flex-shrink: 0; box-shadow: 0 0 0 1px var(--signin-border); }
.signin-flag svg { display: block; width: 100%; height: 100%; }
.signin-lang.is-open .signin-lang__trigger svg { transform: rotate(180deg); }
.signin-lang__panel { left: 0; right: auto; min-width: 160px; }
.signin-lang__panel .popover__item[aria-current="true"] { background: var(--color-surface-glass-light); color: var(--color-text-primary); }
[dir="rtl"] .signin-lang__panel { left: auto; right: 0; }
[dir="rtl"] .signin-lang__panel .popover__item { text-align: right; }

/* ---------- Tablet / mobile ---------- */
@media (min-width: 1024px) {
  /* `.signin-shell` uses flex-direction: row (the default) deliberately —
     combined with dir="rtl" that already renders the first DOM child
     (brand panel) on the right and the second (form) on the left, which is
     the required mirrored layout. Adding row-reverse here would cancel
     that out and restore an LTR-looking order. */
  [dir="rtl"] .signin-brand__inner { align-items: flex-end; text-align: right; }
}

@media (max-width: 1023px) {
  .signin-shell { flex-direction: column; min-height: 100vh; }
  .signin-brand {
    flex: none;
    height: 120px;
    padding: var(--space-4) var(--space-5);
    justify-content: flex-start;
  }
  .signin-brand__inner { flex-direction: row; align-items: center; gap: var(--space-3); max-width: none; }
  .signin-brand__tagline,
  .signin-brand__art { display: none; }
  .signin-brand__inner > * { animation: none; opacity: 1; transform: none; }
  .signin-form-panel { flex: 1; padding: var(--space-6) var(--space-5); align-items: flex-start; }
  .signin-form-wrap { padding-top: var(--space-2); }
}

@media (max-width: 767px) {
  .signin-brand { height: 96px; padding-inline: var(--space-4); }
  .signin-brand__logo img { width: 44px; height: 44px; }
  .signin-brand__logo span { font-size: var(--fs-h3); }
  .signin-form-panel { padding: var(--space-5) var(--space-4); }
  .signin-heading { font-size: var(--fs-h2); }
  .signin-footer { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
}