:root {
  --auth-max-width: 520px;
}

.auth-page {
  min-width: 320px;
  background:
    radial-gradient(circle at 12% 8%, rgba(6, 182, 212, 0.16), transparent 18rem),
    radial-gradient(circle at 92% 4%, rgba(37, 99, 235, 0.16), transparent 19rem),
    linear-gradient(180deg, var(--cdx-page), var(--cdx-surface-2));
}

.auth-shell {
  width: min(100%, var(--auth-max-width));
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0 auto;
  padding: calc(var(--safe-top) + 1rem) 1rem calc(var(--safe-bottom) + 1.25rem);
  display: grid;
  align-content: start;
  gap: 1rem;
}

.auth-splash {
  place-items: center;
  align-content: center;
}

.splash-card,
.login-card {
  position: relative;
  overflow: hidden;
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--cdx-primary) 18%, var(--cdx-border));
  border-radius: 30px;
  background:
    radial-gradient(circle at 100% 0%, rgba(6, 182, 212, 0.18), transparent 9rem),
    radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.16), transparent 9rem),
    var(--cdx-surface);
  box-shadow: var(--shadow-card-hover);
}

.splash-card {
  min-height: min(620px, calc(100dvh - 2rem));
  padding: 2rem 1.5rem;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 1.1rem;
  text-align: center;
}

.splash-mark,
.auth-brand img {
  display: grid;
  place-items: center;
  background: var(--brand-gradient);
  box-shadow: 0 18px 42px rgba(37, 99, 235, 0.22);
}

.splash-mark {
  width: 92px;
  height: 92px;
  border-radius: 28px;
  animation: splash-pulse 1600ms ease-in-out infinite;
}

.splash-mark img,
.auth-brand img {
  width: 58%;
  height: 58%;
}

.splash-card h1,
.auth-hero h1,
.login-heading h1 {
  margin: 0;
  color: var(--cdx-ink);
  font-family: var(--font-display);
  letter-spacing: 0;
}

.splash-card h1 {
  font-size: clamp(1.7rem, 8vw, 2.2rem);
}

.splash-card p,
.auth-hero p,
.login-heading p,
.auth-note,
.auth-bottom-link,
.back-link {
  margin: 0;
  color: var(--cdx-muted);
}

.splash-progress {
  width: min(220px, 72vw);
  height: 7px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--cdx-primary) 12%, var(--cdx-surface-2));
}

.splash-progress span {
  width: 44%;
  height: 100%;
  display: block;
  border-radius: inherit;
  background: var(--brand-gradient);
  animation: splash-progress 1500ms ease-in-out infinite;
}

.auth-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.auth-brand {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.auth-brand img {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  padding: 0.58rem;
}

.auth-brand span {
  min-width: 0;
  display: grid;
}

.auth-brand strong {
  color: var(--cdx-ink);
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.1;
}

.auth-brand small {
  color: var(--cdx-muted);
  font-size: 0.75rem;
  font-weight: 750;
}

.auth-hero {
  padding: 0.8rem 0 0.15rem;
}

.auth-kicker {
  color: var(--cdx-primary-700);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.auth-hero h1,
.login-heading h1 {
  font-size: clamp(1.65rem, 8vw, 2.15rem);
  line-height: 1.05;
}

.auth-hero p,
.login-heading p {
  margin-top: 0.45rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.role-stack {
  display: grid;
  gap: 0.75rem;
}

.role-card {
  width: 100%;
  min-height: 94px;
  border: 1px solid color-mix(in srgb, var(--role-color, var(--cdx-primary)) 16%, var(--cdx-border));
  border-radius: 22px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem;
  background:
    radial-gradient(circle at 100% 0%, color-mix(in srgb, var(--role-color, var(--cdx-primary)) 14%, transparent), transparent 6rem),
    linear-gradient(180deg, var(--cdx-surface), color-mix(in srgb, var(--role-color, var(--cdx-primary)) 4%, var(--cdx-surface)));
  color: var(--cdx-text);
  text-align: left;
  box-shadow: var(--shadow-xs);
}

.role-card.is-selected {
  border-color: color-mix(in srgb, var(--role-color, var(--cdx-primary)) 44%, var(--cdx-border));
  box-shadow: var(--shadow-card);
  transform: translateY(-1px);
}

.role-student { --role-color: var(--cdx-primary); }
.role-teacher { --role-color: var(--cdx-purple); }
.role-employee { --role-color: var(--cdx-teal); }
.role-parent { --role-color: var(--cdx-cyan); }

.role-icon,
.role-arrow,
.login-role-pill span {
  display: grid;
  place-items: center;
  background: var(--brand-gradient);
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 900;
}

.auth-svg-icon {
  width: 1.12rem;
  height: 1.12rem;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.role-icon {
  width: 50px;
  height: 50px;
  border-radius: 18px;
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.16);
}

.role-card strong {
  display: block;
  color: var(--cdx-ink);
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.15;
}

.role-card small {
  display: block;
  margin-top: 0.26rem;
  color: var(--cdx-muted);
  font-size: 0.78rem;
  line-height: 1.38;
}

.role-arrow {
  width: 30px;
  height: 30px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--role-color, var(--cdx-primary)) 14%, var(--cdx-surface));
  color: var(--role-color, var(--cdx-primary));
}

.auth-actions,
.auth-form,
.login-card,
.auth-helper-stack {
  display: grid;
  gap: 0.85rem;
}

.login-card {
  padding: 1.05rem;
}

.login-role-pill {
  width: max-content;
  max-width: 100%;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.72rem 0.35rem 0.38rem;
  background: color-mix(in srgb, var(--role-color, var(--cdx-primary)) 11%, var(--cdx-surface));
  color: var(--cdx-primary-700);
  font-weight: 900;
}

.login-role-pill span {
  width: 32px;
  height: 32px;
  border-radius: 13px;
  font-size: 0.72rem;
}

.auth-field {
  position: relative;
  display: grid;
  gap: 0.4rem;
}

.auth-field > span {
  color: var(--cdx-muted);
  font-size: 0.76rem;
  font-weight: 900;
}

.auth-field input {
  width: 100%;
  min-height: 52px;
  border: 1px solid color-mix(in srgb, var(--cdx-primary) 13%, var(--cdx-border));
  border-radius: 16px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--cdx-surface) 94%, transparent), color-mix(in srgb, var(--cdx-surface-2) 70%, var(--cdx-surface)));
  color: var(--cdx-text);
  padding: 0 0.95rem;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.auth-field input[type="checkbox"] {
  width: 18px;
  min-height: 18px;
  accent-color: var(--cdx-primary);
}

.auth-check {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.65rem;
  align-items: start;
  color: var(--cdx-muted);
  font-size: 0.78rem;
  font-weight: 750;
  line-height: 1.45;
}

.auth-otp-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.45rem;
}

.auth-otp-grid input {
  width: 100%;
  min-height: 52px;
  border: 1px solid color-mix(in srgb, var(--cdx-primary) 16%, var(--cdx-border));
  border-radius: 16px;
  background: var(--cdx-surface);
  color: var(--cdx-ink);
  text-align: center;
  font-size: 1.2rem;
  font-weight: 900;
  outline: none;
}

.auth-otp-grid input:focus {
  border-color: var(--cdx-primary-400);
  box-shadow: 0 0 0 4px var(--cdx-primary-soft);
}

.auth-inline-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--cdx-muted);
  font-size: 0.78rem;
  font-weight: 850;
}

.auth-link-button {
  border: 0;
  background: transparent;
  color: var(--cdx-primary-700);
  padding: 0;
  font: inherit;
  font-weight: 900;
}

.auth-mini-note {
  border-radius: 16px;
  background: color-mix(in srgb, var(--cdx-primary) 8%, var(--cdx-surface));
  color: var(--cdx-muted);
  padding: 0.8rem;
  font-size: 0.76rem;
  line-height: 1.42;
}

.auth-field input:focus {
  border-color: color-mix(in srgb, var(--cdx-primary) 46%, var(--cdx-border));
  box-shadow: 0 0 0 4px var(--cdx-primary-soft);
}

.password-field input {
  padding-right: 3.25rem;
}

.password-toggle {
  position: absolute;
  right: 0.38rem;
  bottom: 0.38rem;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--cdx-primary) 9%, var(--cdx-surface));
  color: var(--cdx-primary-700);
}

.eye-icon {
  position: relative;
  width: 20px;
  height: 14px;
  border: 2px solid currentColor;
  border-radius: 999px / 80%;
}

.eye-icon::before {
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.password-toggle.is-visible .eye-icon::after {
  position: absolute;
  left: -4px;
  top: 5px;
  width: 28px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transform: rotate(-34deg);
  content: "";
}

.auth-form-row {
  display: flex;
  justify-content: flex-end;
}

.auth-form-row a,
.auth-bottom-link a,
.back-link {
  color: var(--cdx-primary-700);
  font-size: 0.84rem;
  font-weight: 900;
}

.auth-btn {
  min-height: 50px;
  border: 0;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
  font-weight: 900;
}

.auth-btn-primary {
  background: var(--brand-gradient);
  color: #ffffff;
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.2);
}

.auth-btn-soft {
  background: color-mix(in srgb, var(--cdx-primary) 10%, var(--cdx-surface));
  color: var(--cdx-primary-700);
}

.auth-note,
.auth-bottom-link,
.back-link {
  text-align: center;
  font-size: 0.78rem;
  line-height: 1.45;
}

.auth-toast-host {
  position: fixed;
  left: 50%;
  bottom: calc(var(--safe-bottom) + 1rem);
  z-index: 80;
  width: min(calc(100% - 1.25rem), 440px);
  transform: translateX(-50%);
  pointer-events: none;
}

.auth-toast {
  border: 1px solid color-mix(in srgb, var(--cdx-primary) 18%, var(--cdx-border));
  border-radius: 18px;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 0.7rem;
  align-items: center;
  padding: 0.8rem;
  background:
    radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.1), transparent 6rem),
    var(--cdx-surface);
  box-shadow: var(--shadow-float);
  color: var(--cdx-text);
  pointer-events: auto;
}

.auth-toast span {
  width: 36px;
  height: 36px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: var(--brand-gradient);
  color: #ffffff;
  font-weight: 900;
}

.auth-toast strong {
  display: block;
  color: var(--cdx-ink);
  font-size: 0.86rem;
}

.auth-toast small {
  display: block;
  color: var(--cdx-muted);
  font-size: 0.76rem;
  line-height: 1.35;
}

html[data-theme="dark"] .auth-page,
body[data-theme="dark"].auth-page {
  background:
    radial-gradient(circle at 12% 8%, rgba(34, 211, 238, 0.13), transparent 18rem),
    radial-gradient(circle at 92% 4%, rgba(81, 165, 246, 0.14), transparent 19rem),
    var(--cdx-page);
}

html[data-theme="dark"] .splash-card,
html[data-theme="dark"] .login-card,
html[data-theme="dark"] .role-card,
html[data-theme="dark"] .auth-toast,
body[data-theme="dark"] .splash-card,
body[data-theme="dark"] .login-card,
body[data-theme="dark"] .role-card,
body[data-theme="dark"] .auth-toast {
  background:
    radial-gradient(circle at 100% 0%, rgba(81, 165, 246, 0.13), transparent 8rem),
    color-mix(in srgb, var(--cdx-surface) 88%, transparent);
  border-color: color-mix(in srgb, var(--cdx-border) 76%, transparent);
}

@keyframes splash-pulse {
  50% { transform: translateY(-2px) scale(1.03); }
}

@keyframes splash-progress {
  0% { transform: translateX(-100%); }
  55%, 100% { transform: translateX(230%); }
}

@media (max-width: 374px) {
  .auth-shell {
    padding-right: 0.75rem;
    padding-left: 0.75rem;
  }

  .role-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .role-arrow {
    display: none;
  }
}