/* idcub · 认证四页与维护页布局。
   组件与依赖说明：../docs/CSS-ARCHITECTURE.md。 */

.nv-auth {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--nv-space-8) var(--nv-space-4) var(--nv-space-10);
}

@media (min-width: 1024px) {
  .nv-auth {
    position: relative;
  }

  .nv-auth::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(620px 360px at 50% 18%, rgba(37, 99, 235, .10), transparent 70%),
      radial-gradient(460px 320px at 82% 85%, rgba(14, 165, 233, .07), transparent 72%);
  }

  .nv-auth__card {
    position: relative;
    z-index: 1;
  }
}

@media (min-height: 560px) {
  .nv-auth {
    flex-direction: column;
    min-height: calc(100vh - var(--nv-header-h) - var(--nv-footer-h, 220px));
    padding-top: var(--nv-space-6);
    padding-bottom: var(--nv-space-6);
  }

  .nv-auth__card {
    margin-block: auto;
    margin-inline: auto;
  }
}

body:has(.nv-auth) .nv-footer {
  margin-top: var(--nv-space-6);
}

.nv-auth__card {
  width: 100%;
  max-width: 460px;
  padding: var(--nv-space-8);
  background-color: var(--nv-elevated);
  border: 1px solid var(--nv-border-soft);
  border-radius: var(--nv-radius-card);
  box-shadow: var(--nv-shadow-2);
}

@media (min-width: 480px) {
  .nv-auth__card {
    padding: var(--nv-space-10);
  }
}

.nv-auth .nv-field {
  margin-bottom: var(--nv-space-3);
}

@media (max-width: 479px) {
  .nv-auth__card {
    padding: var(--nv-space-6);
  }
}

.nv-auth__head {
  text-align: center;
  margin-bottom: var(--nv-space-4);
}

.nv-auth__mark {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin: 0 auto var(--nv-space-3);
  border-radius: var(--nv-radius-btn);
  background-image: var(--nv-gradient);
  box-shadow: var(--nv-shadow-brand);
  overflow: hidden;
}

.nv-auth__mark > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: inherit;
}

.nv-auth__mark:has(> img) {
  background-image: none;
  box-shadow: none;
}

.nv-auth__title {
  font-size: var(--nv-fs-title);
  font-weight: var(--nv-weight-bold);
  letter-spacing: var(--nv-ls-title);
  margin-bottom: var(--nv-space-1);
}

.nv-auth__sub {
  font-size: var(--nv-fs-caption);
  color: var(--nv-text-muted);
}

.nv-auth__divider {
  display: flex;
  align-items: center;
  gap: var(--nv-space-3);
  margin-top: var(--nv-space-5);
  font-size: var(--nv-fs-micro);
  color: var(--nv-text-faint);
}

.nv-auth__divider::before,
.nv-auth__divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: var(--nv-border);
}

.nv-auth__foot {
  margin-top: var(--nv-space-5);
  padding-top: var(--nv-space-4);
  border-top: 1px solid var(--nv-border-soft);
  text-align: center;
  font-size: var(--nv-fs-caption);
  color: var(--nv-text-muted);
}

.nv-auth__alert {
  display: flex;
  align-items: flex-start;
  gap: var(--nv-space-2);
  margin-bottom: var(--nv-space-4);
  padding: 10px 12px;
  border: 1px solid rgba(var(--nv-danger-rgb), 0.35);
  border-left: 3px solid var(--nv-danger);
  border-radius: var(--nv-radius-md);
  background-color: var(--nv-danger-soft);
  color: var(--nv-danger-ink);
  font-size: var(--nv-fs-caption);
  line-height: 1.55;
}

.nv-auth__alert[hidden] {
  display: none;
}

.nv-auth__alert .material-icons-outlined {
  flex: 0 0 auto;
  font-size: 18px;
  line-height: 1.4;
}

.nv-auth__alert-text {
  flex: 1 1 auto;
  min-width: 0;
}

@media (prefers-reduced-motion: no-preference) {
  .nv-auth__alert.is-shake {
    animation: nv-auth-shake .32s ease-in-out 1;
  }
}

@keyframes nv-auth-shake {
  0%, 100% {
    transform: translateX(0);
  }

  25% {
    transform: translateX(-4px);
  }

  75% {
    transform: translateX(4px);
  }
}

.nv-auth__separator {
  margin-inline: var(--nv-space-2);
}

.nv-auth__mark--warning {
  background-image: linear-gradient(135deg, var(--nv-warning), var(--nv-gold));
  box-shadow: none;
}