/* Login experience — deliberately isolated from the authenticated app shell. */

:root {
  --login-card-border: color-mix(in srgb, var(--aims-navy) 14%, white);
  --login-focus: color-mix(in srgb, var(--aims-blue) 24%, transparent);
}

[data-theme="dark"] {
  --login-card-border: rgba(255, 255, 255, 0.15);
  --login-focus: color-mix(in srgb, var(--dark-blue) 32%, transparent);
}

html {
  min-width: 320px;
}

body {
  overflow-x: hidden;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: 10px;
  background: var(--text-primary);
  color: var(--bg-surface);
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 180ms var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

.bg-effects {
  background:
    radial-gradient(circle at 12% 12%, var(--brand-primary-a12), transparent 28%),
    radial-gradient(circle at 91% 83%, var(--brand-secondary-a12), transparent 27%),
    linear-gradient(145deg, #fbfcff 0%, #f6f8fc 46%, #fffafb 100%);
}

[data-theme="dark"] .bg-effects {
  background:
    radial-gradient(circle at 12% 10%, color-mix(in srgb, var(--dark-blue) 22%, transparent), transparent 32%),
    radial-gradient(circle at 92% 84%, color-mix(in srgb, var(--dark-red) 13%, transparent), transparent 29%),
    linear-gradient(145deg, #031327 0%, var(--dark-navy) 48%, #07172e 100%);
}

.bg-effects::before,
.bg-effects::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  opacity: 0.72;
  transform: rotate(-18deg);
}

.bg-effects::before {
  width: min(62vw, 860px);
  height: min(32vw, 430px);
  top: -20%;
  right: -8%;
}

.bg-effects::after {
  width: min(48vw, 660px);
  height: min(24vw, 330px);
  bottom: -18%;
  left: -7%;
}

.gradient-orb {
  filter: blur(70px);
  opacity: 0.38;
}

.orb-1 {
  width: min(46vw, 600px);
  height: min(46vw, 600px);
  top: -24%;
  left: -10%;
}

.orb-2 {
  width: min(42vw, 560px);
  height: min(42vw, 560px);
  right: -14%;
  bottom: -25%;
}

.orb-3 {
  width: min(25vw, 340px);
  height: min(25vw, 340px);
  top: 38%;
  left: 48%;
}

.grid-overlay {
  background-size: 56px 56px;
  opacity: 0.72;
  mask-image: linear-gradient(to bottom, transparent, black 18%, black 82%, transparent);
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 18%, black 82%, transparent);
}

.login-page {
  isolation: isolate;
}

.login-topbar {
  max-width: 1280px;
  min-height: 96px;
  padding: 1.25rem clamp(1.25rem, 4vw, 2.75rem);
}

.brand-logo-link {
  min-width: 44px;
  min-height: 44px;
  border-radius: 12px;
  outline: none;
}

.brand-logo-link:focus-visible {
  box-shadow: 0 0 0 4px var(--login-focus);
}

.brand-logo {
  height: 50px;
  max-width: min(190px, 48vw);
}

.login-top-actions {
  gap: 0.75rem;
}

.login-product-label {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.login-product-label::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--brand-secondary);
  box-shadow: 0 0 0 4px var(--brand-secondary-a12);
}

.btn-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg-surface) 82%, transparent);
  box-shadow: 0 8px 24px rgba(8, 40, 88, 0.06);
  outline: none;
}

.btn-icon:hover {
  background: var(--bg-surface);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-icon:focus-visible {
  border-color: var(--brand-tertiary);
  box-shadow: 0 0 0 4px var(--login-focus);
}

.login-shell {
  max-width: 1280px;
  min-height: calc(100vh - 96px);
  min-height: calc(100dvh - 96px);
  grid-template-columns: minmax(0, 1.06fr) minmax(400px, 0.94fr);
  gap: clamp(3rem, 7vw, 6.5rem);
  padding: 1.75rem clamp(1.25rem, 4vw, 2.75rem) clamp(3rem, 7vh, 5.5rem);
}

.login-aside {
  position: relative;
  max-width: 620px;
}

.login-aside::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 260px;
  height: 260px;
  left: -110px;
  top: 20%;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  box-shadow: 0 0 0 34px color-mix(in srgb, var(--bg-surface) 18%, transparent),
    0 0 0 68px color-mix(in srgb, var(--bg-surface) 10%, transparent);
}

.login-badge {
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  padding: 0.48rem 0.8rem 0.48rem 0.55rem;
  border-color: var(--login-card-border);
  box-shadow: 0 8px 24px rgba(8, 40, 88, 0.06);
}

.login-badge-dot {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  color: var(--aims-white);
  background: linear-gradient(145deg, var(--brand-primary), var(--brand-tertiary));
  box-shadow: 0 7px 16px var(--brand-primary-a22);
}

.login-badge-dot svg {
  width: 13px;
  height: 13px;
}

.login-aside h1 {
  max-width: 600px;
  margin-bottom: 1.25rem;
  font-size: clamp(2.3rem, 3.5vw, 3.35rem);
  line-height: 1.09;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.login-heading-accent {
  position: relative;
  display: inline-block;
  color: var(--text-primary);
  -webkit-text-fill-color: currentColor;
}

.login-heading-accent--speaking {
  color: #c82028;
  text-shadow: none;
}

.login-heading-accent--writing {
  color: #1058a8;
  background: none;
  -webkit-text-fill-color: currentColor;
}

.login-heading-accent--tests {
  color: #1058a8;
  text-shadow: none;
}

[data-theme="dark"] .login-heading-accent--speaking {
  color: #ff7278;
  text-shadow: none;
}

[data-theme="dark"] .login-heading-accent--writing {
  color: #67b4ff;
  background: none;
  -webkit-text-fill-color: currentColor;
}

[data-theme="dark"] .login-heading-accent--tests {
  color: #67b4ff;
  text-shadow: none;
}

.login-aside-lead {
  max-width: 34rem;
  margin-bottom: 1.5rem;
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.75;
}

.login-pill-row {
  margin-bottom: 1.85rem;
  gap: 0.55rem;
}

.login-pill {
  min-height: 36px;
  padding: 0.45rem 0.75rem;
  border-color: var(--login-card-border);
  background: color-mix(in srgb, var(--bg-surface) 76%, transparent);
  box-shadow: 0 7px 20px rgba(8, 40, 88, 0.045);
}

.login-journey {
  position: relative;
  display: grid;
  gap: 0.7rem;
  width: min(100%, 520px);
  padding-left: 1.25rem;
}

.login-journey::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 35px;
  bottom: 35px;
  width: 1px;
  background: linear-gradient(var(--brand-primary-a28), var(--brand-secondary-a35), var(--brand-tertiary-a22));
}

.login-journey-item {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 0.9rem;
  min-height: 66px;
  padding: 0.72rem 1rem 0.72rem 0;
  border: 1px solid var(--login-card-border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--bg-surface) 74%, transparent);
  box-shadow: 0 12px 30px rgba(8, 40, 88, 0.055);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.login-journey-icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-left: -1.25rem;
  border: 1px solid var(--login-card-border);
  border-radius: 14px;
  color: var(--brand-tertiary);
  background: var(--bg-surface);
  box-shadow: 0 8px 18px rgba(8, 40, 88, 0.1);
}

.login-journey-item:nth-child(2) .login-journey-icon {
  color: var(--brand-secondary);
}

.login-journey-copy strong,
.login-journey-copy span {
  display: block;
}

.login-journey-copy strong {
  margin-bottom: 0.08rem;
  color: var(--text-primary);
  font-size: 0.84rem;
  font-weight: 700;
}

.login-journey-copy span {
  color: var(--text-tertiary);
  font-size: 0.75rem;
  line-height: 1.45;
}

.login-panel-wrap {
  width: min(100%, 510px);
  justify-self: end;
}

.login-card {
  padding: clamp(1.6rem, 3.5vw, 2.5rem);
  border: 1px solid var(--login-card-border);
  border-radius: 28px;
  background:
    linear-gradient(var(--bg-surface-glass), var(--bg-surface-glass)) padding-box,
    linear-gradient(145deg, color-mix(in srgb, var(--brand-tertiary) 28%, transparent), transparent 34%, color-mix(in srgb, var(--brand-secondary) 22%, transparent)) border-box;
  box-shadow: 0 30px 80px -32px rgba(8, 40, 88, 0.38),
    0 12px 36px -20px rgba(8, 40, 88, 0.24),
    inset 0 1px 0 color-mix(in srgb, white 68%, transparent);
}

[data-theme="dark"] .login-card {
  background:
    linear-gradient(color-mix(in srgb, var(--dark-navy) 88%, transparent), color-mix(in srgb, #07172e 92%, transparent)) padding-box,
    linear-gradient(145deg, color-mix(in srgb, var(--dark-blue) 48%, transparent), rgba(255, 255, 255, 0.08) 42%, color-mix(in srgb, var(--dark-red) 36%, transparent)) border-box;
  box-shadow: 0 34px 90px -34px rgba(0, 0, 0, 0.8),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.login-card::before {
  height: 4px;
  background: linear-gradient(90deg, var(--brand-tertiary), var(--brand-primary) 42%, var(--brand-secondary));
}

.login-card::after {
  content: "";
  position: absolute;
  top: -90px;
  right: -90px;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--brand-tertiary-a12), transparent 70%);
  pointer-events: none;
}

.login-card-header {
  position: relative;
  z-index: 1;
  margin-bottom: 1.75rem;
}

.login-card-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
  color: var(--brand-tertiary);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

[data-theme="dark"] .login-card-kicker {
  color: #78bdff;
}

.login-card-mark {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 9px;
  color: var(--aims-white);
  background: linear-gradient(145deg, var(--brand-primary), var(--brand-tertiary));
  box-shadow: 0 7px 15px var(--brand-primary-a22);
}

.login-card-header h2 {
  margin-bottom: 0.45rem;
  font-size: clamp(1.55rem, 2.6vw, 1.9rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.login-card-header p {
  max-width: 32rem;
  font-size: 0.94rem;
  line-height: 1.6;
}

.form-group {
  margin-bottom: 1.1rem;
}

.form-group label {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.79rem;
  letter-spacing: 0.005em;
}

.input-shell {
  min-height: 54px;
  border-radius: 14px;
}

.input-shell > .input-icon {
  left: 16px;
  z-index: 1;
  transition: color 180ms ease, transform 180ms ease;
}

.form-group input {
  min-height: 54px;
  padding: 0.85rem 1rem 0.85rem 2.95rem;
  border-color: var(--border-default);
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg-input) 92%, transparent);
  font-size: 1rem;
}

.form-group input:hover:not(:focus) {
  border-color: var(--border-hover);
}

.form-group input:focus {
  border-color: var(--brand-tertiary);
  box-shadow: 0 0 0 4px var(--login-focus), 0 9px 24px rgba(8, 40, 88, 0.06);
}

.input-shell:focus-within > .input-icon {
  color: var(--brand-tertiary);
  transform: translateY(-50%) scale(1.06);
}

.form-group input[aria-invalid="true"] {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px var(--danger-bg);
}

.form-group input:-webkit-autofill,
.form-group input:-webkit-autofill:hover,
.form-group input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--text-primary);
  box-shadow: 0 0 0 1000px var(--bg-input) inset;
  caret-color: var(--text-primary);
}

.btn-toggle-pw {
  right: 11px;
  z-index: 2;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  outline: none;
}

.btn-toggle-pw:focus-visible {
  color: var(--brand-tertiary);
  background: var(--brand-tertiary-a12);
  box-shadow: 0 0 0 3px var(--login-focus);
}

.error-message {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
}

.error-message[hidden] {
  display: none;
}

.error-message svg {
  flex: 0 0 auto;
  margin-top: 0.1rem;
}

.btn-login {
  position: relative;
  min-height: 54px;
  margin-top: 0.35rem;
  padding: 0.9rem 1.25rem;
  border: 1px solid color-mix(in srgb, var(--brand-primary) 88%, black);
  border-radius: 14px;
  overflow: hidden;
  font-size: 0.95rem;
  isolation: isolate;
  outline: none;
}

.btn-login::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(105deg, transparent 20%, rgba(255, 255, 255, 0.2) 48%, transparent 76%);
  transform: translateX(-120%);
  transition: transform 650ms var(--ease-out);
}

.btn-login:hover:not(:disabled)::before {
  transform: translateX(120%);
}

.btn-login:focus-visible {
  box-shadow: 0 0 0 4px var(--login-focus), var(--btn-primary-shadow-hover);
}

.btn-login-label,
.btn-login-loading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-login-loading[hidden],
.btn-login-label[hidden] {
  display: none;
}

.spinner {
  width: 18px;
  height: 18px;
}

.login-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.65rem;
  padding-top: 1.15rem;
  text-align: left;
}

.login-security {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-tertiary);
  font-size: 0.72rem;
  font-weight: 600;
}

.login-footer a {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  white-space: nowrap;
}

.login-footer a:focus-visible {
  border-radius: 6px;
  outline: 3px solid var(--login-focus);
  outline-offset: 3px;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .login-card,
  .login-journey-item,
  .login-pill,
  .btn-icon {
    background: var(--bg-surface);
  }
}

@media (max-width: 980px) {
  .login-shell {
    max-width: 680px;
    min-height: auto;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
    align-content: start;
    padding-top: 2rem;
  }

  .login-aside {
    display: block;
    max-width: 620px;
    text-align: center;
  }

  .login-aside::after,
  .login-journey {
    display: none;
  }

  .login-aside h1 {
    max-width: 600px;
    margin-bottom: 0;
    margin-right: auto;
    margin-left: auto;
    font-size: clamp(2rem, 4.6vw, 2.65rem);
  }

  .login-badge {
    justify-content: center;
  }

  .login-aside-lead,
  .login-pill-row {
    display: none;
  }

  .login-shell .login-panel-wrap {
    order: initial;
    width: min(100%, 540px);
    margin: 0 auto;
    justify-self: center;
  }
}

@media (max-width: 620px) {
  .login-topbar {
    min-height: 78px;
    padding: 0.8rem 1rem;
  }

  .brand-logo {
    height: 43px;
    max-width: 142px;
  }

  .login-product-label {
    display: none;
  }

  .btn-icon {
    width: 44px;
    height: 44px;
  }

  .login-shell {
    gap: 1.35rem;
    padding: 1.15rem 0.9rem max(1.25rem, env(safe-area-inset-bottom));
  }

  .login-badge {
    margin-bottom: 0.9rem;
    font-size: 0.7rem;
  }

  .login-aside h1 {
    margin-bottom: 0;
    font-size: clamp(1.72rem, 7.5vw, 2.05rem);
    line-height: 1.08;
  }

  .login-aside-lead,
  .login-pill-row {
    display: none;
  }

  .login-card {
    padding: 1.45rem 1.15rem;
    border-radius: 22px;
  }

  .login-card-header {
    margin-bottom: 1.35rem;
  }

  .login-card-kicker {
    margin-bottom: 0.75rem;
  }

  .login-card-header h2 {
    font-size: 1.55rem;
  }

  .login-footer {
    flex-direction: column;
    gap: 0.65rem;
    text-align: center;
  }
}

@media (max-width: 380px) {
  .login-shell {
    padding-right: 0.65rem;
    padding-left: 0.65rem;
  }

  .login-card {
    padding-right: 0.9rem;
    padding-left: 0.9rem;
  }

  .login-badge-dot {
    display: none;
  }

  .login-badge {
    padding-left: 0.75rem;
  }
}

@media (min-width: 981px) and (max-height: 780px) {
  .login-topbar {
    min-height: 78px;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .login-shell {
    min-height: calc(100vh - 78px);
    min-height: calc(100dvh - 78px);
    padding-top: 1rem;
    padding-bottom: 1.75rem;
  }

  .login-aside h1 {
    font-size: clamp(2.5rem, 4vw, 3.55rem);
  }

  .login-journey-item {
    min-height: 58px;
  }
}

@media (hover: none) {
  .btn-login:hover:not(:disabled),
  .btn-icon:hover,
  .login-stat:hover {
    transform: none;
  }
}

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

  .gradient-orb {
    animation: none;
  }
}

@media (forced-colors: active) {
  .login-card,
  .login-badge,
  .login-pill,
  .login-journey-item,
  .login-journey-icon,
  .btn-icon,
  .form-group input,
  .btn-login {
    border: 1px solid CanvasText;
  }

  .login-heading-accent,
  .login-stat-value {
    color: CanvasText;
    background: none;
    -webkit-text-fill-color: currentColor;
  }

  .login-badge-dot,
  .login-card-mark {
    color: CanvasText;
    background: Canvas;
  }
}