*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  height: 100%;
}

body.auth-page {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
}

.auth-theme-toggle-wrap {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 20;
}

.theme-toggle {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

@keyframes authFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float1 {
  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(20px, -30px) rotate(120deg);
  }
  66% {
    transform: translate(-15px, 20px) rotate(240deg);
  }
}

@keyframes float2 {
  0%,
  100% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  50% {
    transform: translate(-25px, 15px) rotate(-80deg) scale(1.05);
  }
}

@keyframes float3 {
  0%,
  100% {
    transform: translate(0, 0);
  }
  40% {
    transform: translate(18px, 22px);
  }
  80% {
    transform: translate(-12px, -18px);
  }
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

@keyframes dotPulse {
  0%,
  80%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }
  40% {
    opacity: 1;
    transform: translateY(-2px);
  }
}

.auth-shell {
  display: grid;
  grid-template-columns: 40% 60%;
  min-height: 100vh;
}

.auth-brand {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 4vw, 3rem);
  background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 50%, #fff7ed 100%);
  animation: authFadeUp 600ms var(--ease-out) both;
}

[data-theme="dark"] .auth-brand {
  background: linear-gradient(135deg, #1e3a5f 0%, #0f2d1f 50%, #2d1f0f 100%);
}

.auth-brand__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 50% at 20% 30%, rgba(37, 99, 235, 0.12), transparent 60%),
    radial-gradient(50% 40% at 80% 70%, rgba(16, 185, 129, 0.12), transparent 55%),
    radial-gradient(45% 45% at 50% 50%, rgba(245, 158, 11, 0.08), transparent 60%);
  pointer-events: none;
}

.auth-brand__float {
  position: absolute;
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  opacity: 0.15;
  filter: blur(0.5px);
  pointer-events: none;
}

[data-theme="dark"] .auth-brand__float {
  opacity: 0.08;
}

.auth-brand__float--1 {
  width: 280px;
  height: 280px;
  left: -40px;
  top: 18%;
  background: #93c5fd;
  animation: float1 20s ease-in-out infinite;
}

.auth-brand__float--2 {
  width: 220px;
  height: 220px;
  right: 8%;
  bottom: 12%;
  background: #6ee7b7;
  animation: float2 28s ease-in-out infinite;
}

.auth-brand__float--3 {
  width: 180px;
  height: 180px;
  left: 35%;
  bottom: 28%;
  background: #fcd34d;
  animation: float3 35s ease-in-out infinite;
}

.auth-brand__inner {
  position: relative;
  z-index: 1;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  height: 100%;
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.auth-logo__mark {
  color: var(--brand-primary);
  font-size: 1.35rem;
  line-height: 1;
}

.auth-logo__word {
  font-size: 1.25rem;
}

.auth-brand__title {
  margin: 1.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.auth-brand__lede {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 36ch;
}

.auth-pills {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.auth-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--bg-overlay);
  border: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  width: fit-content;
}

.auth-quote {
  margin: auto 0 0;
  padding: 0;
}

.auth-quote__text {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-style: italic;
}

.auth-quote__meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.auth-quote__avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand-primary);
  background: var(--brand-primary-light);
  border: 1px solid var(--border-subtle);
}

.auth-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--bg-surface);
  animation: authFadeUp 600ms var(--ease-out) 150ms both;
}

.auth-mobile-brand {
  display: none;
  width: 100%;
  max-width: 420px;
  margin-bottom: 1.5rem;
  text-align: center;
}

.auth-mobile-tagline {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.auth-card-wrap {
  width: 100%;
  max-width: 420px;
}

.auth-card {
  width: 100%;
  padding: 48px;
  border-radius: var(--radius-xl);
}

.auth-card__badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  color: var(--brand-primary);
  background: var(--brand-primary-light);
  margin-bottom: 1.25rem;
}

.auth-card__heading {
  margin: 0 0 1.5rem;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.auth-social {
  width: 100%;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--bg-elevated);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: not-allowed;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.auth-social:not([disabled]) {
  cursor: pointer;
}

.auth-social:not([disabled]):hover {
  background: var(--bg-surface);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-xs);
}

.auth-social__icon {
  flex-shrink: 0;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0;
  color: var(--text-tertiary);
  font-size: 12px;
  letter-spacing: 0.5px;
  text-transform: lowercase;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border-default);
}

.auth-fields {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field {
  position: relative;
  display: flex;
  flex-direction: column;
}

.field__input {
  width: 100%;
  height: 48px;
  padding: 1.1rem 0.875rem 0.35rem;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-surface);
  outline: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.field--password .field__input {
  padding-right: 2.75rem;
}

.field__input::placeholder {
  color: transparent;
}

.field__input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

.field__label {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 15px;
  color: var(--text-tertiary);
  pointer-events: none;
  transition:
    transform 200ms var(--ease-out),
    font-size 200ms var(--ease-out),
    color 200ms var(--ease-out),
    top 200ms var(--ease-out);
}

.field__input:focus + .field__label,
.field__input:not(:placeholder-shown) + .field__label,
.field.is-filled .field__label {
  top: 0.65rem;
  transform: translateY(0);
  font-size: 11px;
  color: var(--text-secondary);
}

.field__input:focus + .field__label {
  color: var(--brand-primary);
}

.field--password .field__toggle {
  position: absolute;
  right: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.field--password .field__toggle:hover {
  color: var(--text-secondary);
}

.field--password .field__label {
  left: 0.875rem;
}

.field--password .field__input:focus + .field__label,
.field--password .field__input:not(:placeholder-shown) + .field__label,
.field--password.is-filled .field__label {
  top: 0.65rem;
  transform: translateY(0);
  font-size: 11px;
}

.field__error {
  margin: 0.35rem 0 0;
  font-size: 12px;
  color: var(--error);
  min-height: 1em;
}

.field.is-error .field__input {
  border-color: var(--error);
  animation: shake 280ms var(--ease-out);
}

.field.is-error .field__label {
  color: var(--error);
}

.auth-strength {
  margin: -0.25rem 0 0.25rem;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition:
    opacity var(--transition-base),
    max-height var(--transition-base);
}

.auth-strength.is-visible {
  opacity: 1;
  max-height: 80px;
}

.auth-strength__label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-tertiary);
  margin-bottom: 0.35rem;
}

.auth-strength__bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.auth-strength__seg {
  height: 4px;
  border-radius: var(--radius-full);
  background: var(--border-default);
  transition:
    background var(--transition-base),
    transform var(--transition-base);
}

.auth-strength[data-level="1"] .auth-strength__seg:nth-child(1) {
  background: var(--error);
}
.auth-strength[data-level="2"] .auth-strength__seg:nth-child(-n + 2) {
  background: #f59e0b;
}
.auth-strength[data-level="3"] .auth-strength__seg:nth-child(-n + 3) {
  background: #3b82f6;
}
.auth-strength[data-level="4"] .auth-strength__seg:nth-child(-n + 4) {
  background: var(--success);
}

.auth-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.25rem 0 0;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.auth-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--brand-primary);
}

.auth-submit {
  position: relative;
  width: 100%;
  height: 48px;
  margin-top: 1rem;
  border: none;
  border-radius: var(--radius-md);
  background: var(--brand-primary);
  color: var(--text-inverse);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  overflow: hidden;
  transition:
    background var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.auth-submit:hover:not(:disabled) {
  background: var(--brand-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.auth-submit:disabled {
  cursor: wait;
  transform: none;
}

.auth-submit__label,
.auth-submit__loading {
  transition: opacity var(--transition-fast);
}

.auth-submit.is-loading .auth-submit__label {
  opacity: 0;
}

.auth-submit.is-loading .auth-submit__loading {
  opacity: 1;
}

.auth-submit__loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  opacity: 0;
  pointer-events: none;
}

.auth-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--text-inverse);
  animation: dotPulse 1s ease-in-out infinite;
}

.auth-dot:nth-child(2) {
  animation-delay: 0.15s;
}
.auth-dot:nth-child(3) {
  animation-delay: 0.3s;
}

.auth-switch {
  margin: 1.5rem 0 0;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}

.auth-switch a {
  color: var(--brand-primary);
  font-weight: 600;
  text-decoration: none;
}

.auth-switch a:hover {
  text-decoration: underline;
}

[data-stagger] > * {
  opacity: 0;
  animation: authFadeUp 600ms var(--ease-out) both;
}

[data-stagger] > *:nth-child(1) {
  animation-delay: 0.2s;
}
[data-stagger] > *:nth-child(2) {
  animation-delay: 0.25s;
}
[data-stagger] > *:nth-child(3) {
  animation-delay: 0.3s;
}
[data-stagger] > *:nth-child(4) {
  animation-delay: 0.35s;
}
[data-stagger] > *:nth-child(5) {
  animation-delay: 0.4s;
}

.flash-root {
  position: fixed;
  top: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: min(420px, calc(100% - 2rem));
  pointer-events: none;
}

.flash {
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 14px;
  box-shadow: var(--shadow-md);
  animation: flashIn 0.45s var(--ease-out) both;
  border: 1px solid var(--border-default);
}

.flash--error {
  background: var(--error-light);
  border-left: 3px solid var(--error);
}

.flash--success {
  background: var(--success-light);
  border-left: 3px solid var(--success);
}

.flash--out {
  animation: flashOut 0.4s var(--ease-out) both;
}

@keyframes flashIn {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes flashOut {
  to {
    opacity: 0;
    transform: translateY(-8px);
  }
}

@media (max-width: 767px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }

  .auth-brand {
    display: none;
  }

  .auth-main {
    align-items: stretch;
    padding: 1.5rem;
  }

  .auth-mobile-brand {
    display: block;
    animation: authFadeUp 600ms var(--ease-out) both;
  }

  .auth-card {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}