/*
  FlowSentry v3 — sign-in, two-factor and step-up (Login.razor, Account/TwoFactorLogin.razor, Account/StepUp.razor).
  Split screen: a brand hero (ink canvas, slow gradient mesh that stops under reduced motion) and a glass form card.
  The hero is dark in both themes; the form side follows the theme.
*/

.fs-auth {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 1fr);
  min-height: 100vh;
  background: var(--fs-color-canvas);
}

/* Brand hero */
.fs-auth__hero {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--fs-space-8);
  padding: var(--fs-space-8) clamp(32px, 5vw, 72px);
  overflow: hidden;
  background: #0b0920;
  color: #ffffff;
}

.fs-auth__mesh {
  position: absolute;
  inset: -20%;
  z-index: -2;
  background:
    radial-gradient(38% 42% at 22% 28%, rgba(109, 94, 252, 0.70) 0%, rgba(109, 94, 252, 0) 70%),
    radial-gradient(34% 38% at 78% 18%, rgba(163, 91, 255, 0.55) 0%, rgba(163, 91, 255, 0) 70%),
    radial-gradient(40% 44% at 70% 78%, rgba(56, 189, 248, 0.32) 0%, rgba(56, 189, 248, 0) 70%),
    radial-gradient(36% 40% at 18% 86%, rgba(91, 76, 240, 0.45) 0%, rgba(91, 76, 240, 0) 70%);
  filter: blur(18px) saturate(1.15);
  animation: fs-auth-mesh 28s ease-in-out infinite alternate;
}

.fs-auth__grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 40% 40%, #000 30%, transparent 85%);
  mask-image: radial-gradient(ellipse 80% 70% at 40% 40%, #000 30%, transparent 85%);
}

@keyframes fs-auth-mesh {
  0% { transform: translate3d(0, 0, 0) rotate(0deg) scale(1); }
  50% { transform: translate3d(3%, -2%, 0) rotate(8deg) scale(1.06); }
  100% { transform: translate3d(-3%, 3%, 0) rotate(-6deg) scale(1.02); }
}

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

.fs-auth__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--fs-space-3);
  color: #ffffff;
  text-decoration: none;
}

.fs-auth__brand:hover { color: #ffffff; text-decoration: none; }

.fs-wordmark {
  font-size: 1.1875rem;
  font-weight: var(--fs-weight-semibold);
  letter-spacing: -0.02em;
}

.fs-wordmark__accent { color: #b9afff; }

.fs-auth__pitch { max-width: 560px; }

.fs-auth__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--fs-space-2);
  margin: 0 0 var(--fs-space-4);
  padding: 4px 12px 4px 6px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--fs-radius-pill);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.86);
  font-size: var(--fs-text-xs);
  font-weight: var(--fs-weight-medium);
  letter-spacing: 0.01em;
}

.fs-auth__eyebrow-dot {
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(71, 205, 137, 0.18);
}

.fs-auth__eyebrow-dot::after {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #47cd89;
  box-shadow: 0 0 0 3px rgba(71, 205, 137, 0.25);
}

.fs-auth__headline {
  margin: 0;
  color: #ffffff;
  font-size: clamp(2rem, 3.2vw, 2.875rem);
  line-height: 1.08;
  font-weight: var(--fs-weight-semibold);
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.fs-auth__headline em {
  font-style: normal;
  background: linear-gradient(92deg, #c9c1ff 0%, #9d8cff 45%, #7dd3fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.fs-auth__lede {
  max-width: 46ch;
  margin: var(--fs-space-4) 0 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: var(--fs-text-md);
  line-height: 1.6;
}

.fs-auth__points {
  display: grid;
  gap: var(--fs-space-4);
  margin: var(--fs-space-7) 0 0;
  padding: 0;
  list-style: none;
}

.fs-auth__point {
  display: flex;
  align-items: flex-start;
  gap: var(--fs-space-3);
}

.fs-auth__point-icon {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--fs-radius-sm);
  background: rgba(255, 255, 255, 0.07);
  color: #d4ceff;
}

.fs-auth__point-icon i.rzi { font-size: 18px; }
.fs-auth__point strong { display: block; color: #ffffff; font-size: var(--fs-text-base); font-weight: var(--fs-weight-semibold); }
.fs-auth__point span { color: rgba(255, 255, 255, 0.66); font-size: var(--fs-text-sm); }

/* A glimpse of the product: one glass "signal" card. */
.fs-auth__signal {
  display: flex;
  align-items: center;
  gap: var(--fs-space-3);
  max-width: 420px;
  margin-top: var(--fs-space-7);
  padding: var(--fs-space-3) var(--fs-space-4);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--fs-radius-lg);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.04));
  box-shadow: 0 24px 48px -16px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.fs-auth__signal-score {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: var(--fs-radius-md);
  background: rgba(253, 141, 76, 0.18);
  color: #fdb48a;
  font-size: var(--fs-text-md);
  font-weight: var(--fs-weight-bold);
  font-variant-numeric: tabular-nums;
}

.fs-auth__signal-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.fs-auth__signal-text strong { color: #ffffff; font-size: var(--fs-text-sm); font-weight: var(--fs-weight-semibold); }
.fs-auth__signal-text span { color: rgba(255, 255, 255, 0.64); font-size: var(--fs-text-xs); }

.fs-auth__trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--fs-space-2) var(--fs-space-4);
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: var(--fs-text-xs);
}

.fs-auth__trust span { display: inline-flex; align-items: center; gap: 6px; }
.fs-auth__trust i.rzi { color: rgba(255, 255, 255, 0.7); font-size: 15px; }

/* Form side */
.fs-auth__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--fs-space-5);
  padding: var(--fs-space-8) var(--fs-space-5);
  background:
    radial-gradient(60% 50% at 50% 0%, var(--fs-color-accent-soft) 0%, transparent 70%),
    var(--fs-color-canvas);
}

.fs-auth__card {
  width: 100%;
  max-width: 400px;
  padding: var(--fs-space-6);
  border: 1px solid var(--fs-color-border);
  border-radius: var(--fs-radius-xl);
  background: color-mix(in srgb, var(--fs-color-surface) 86%, transparent);
  box-shadow: var(--fs-shadow-lg);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  backdrop-filter: blur(20px) saturate(1.4);
}

.fs-auth__card-brand { display: none; margin-bottom: var(--fs-space-5); color: var(--fs-color-text-primary); }
.fs-auth__card-brand .fs-wordmark__accent { color: var(--fs-color-accent); }

.fs-auth__icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: var(--fs-space-4);
  border: 1px solid var(--fs-color-accent-border);
  border-radius: var(--fs-radius-md);
  background: var(--fs-color-accent-soft);
  color: var(--fs-color-accent-text);
}

.fs-auth__icon i.rzi { font-size: 22px; }

.fs-auth__title {
  margin: 0;
  color: var(--fs-color-text-primary);
  font-size: var(--fs-text-2xl);
  line-height: var(--fs-leading-2xl);
  font-weight: var(--fs-weight-semibold);
  letter-spacing: var(--fs-tracking-tighter);
}

.fs-auth__subtitle {
  margin: var(--fs-space-1) 0 var(--fs-space-5);
  color: var(--fs-color-text-secondary);
  font-size: var(--fs-text-base);
}

.fs-auth__form { display: flex; flex-direction: column; gap: var(--fs-space-4); }
.fs-auth__form .fs-field { margin: 0; }
.fs-auth__form .fs-input { height: var(--fs-control-h-lg); }
.fs-auth__form .fs-btn-primary { margin-top: var(--fs-space-1); }

.fs-auth__code {
  height: 52px !important;
  font-family: var(--fs-font-mono);
  font-size: 1.375rem !important;
  font-weight: var(--fs-weight-medium);
  letter-spacing: 0.32em;
  text-align: center;
}

.fs-auth__or {
  display: flex;
  align-items: center;
  gap: var(--fs-space-3);
  margin: var(--fs-space-5) 0;
  color: var(--fs-color-text-tertiary);
  font-size: var(--fs-text-xs);
}

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

.fs-auth__note {
  display: flex;
  align-items: flex-start;
  gap: var(--fs-space-2);
  margin: var(--fs-space-5) 0 0;
  padding-top: var(--fs-space-4);
  border-top: 1px solid var(--fs-color-border-subtle);
  color: var(--fs-color-text-tertiary);
  font-size: var(--fs-text-xs);
  line-height: var(--fs-leading-xs);
}

.fs-auth__note i.rzi { flex: none; font-size: 15px; }
.fs-auth__help { margin: var(--fs-space-3) 0 0; color: var(--fs-color-text-tertiary); font-size: var(--fs-text-xs); text-align: center; }
.fs-auth__back { margin: 0; color: var(--fs-color-text-tertiary); font-size: var(--fs-text-sm); }
.fs-auth__legal { margin: 0; color: var(--fs-color-text-tertiary); font-size: var(--fs-text-xs); }

@media (max-width: 960px) {
  .fs-auth { grid-template-columns: minmax(0, 1fr); }
  .fs-auth__hero { display: none; }
  .fs-auth__card-brand { display: inline-flex; align-items: center; gap: var(--fs-space-3); }
}

@media (max-width: 480px) {
  .fs-auth__panel { padding: var(--fs-space-5) var(--fs-space-4); justify-content: flex-start; }
  .fs-auth__card { padding: var(--fs-space-5); border-radius: var(--fs-radius-lg); }
}