/* Elevionis UX-4.10 — Login visual recovery.
   Single runtime authority for Login presentation. Auth and routing stay untouched.
   Artwork follows the canonical Student Portal hero: CSS-selected responsive/theme
   backgrounds, cover crops and theme-specific overlays. */

#login-screen {
  --ux410-page: #f5f4f8;
  --ux410-page-soft: #edf2f5;
  --ux410-page-warm: #fbfaf8;
  --ux410-card: rgba(255, 253, 250, 0.98);
  --ux410-ink: #25163d;
  --ux410-muted: #6e6478;
  --ux410-brand: #6f43d6;
  --ux410-line: rgba(67, 44, 112, 0.14);
  --ux410-shell: 1680px;
  --ux410-card-width: 500px;
  --ux410-art-position: 63% 38%;
  --login-navigation-inset: 16px;
  color-scheme: light;
}

#login-screen.login-wrapper {
  display: block;
  min-height: 100dvh;
  overflow-x: clip;
  overflow-y: auto;
  padding: clamp(20px, 2.5vw, 46px);
  color: var(--ux410-ink);
  background:
    radial-gradient(ellipse 30% 45% at 12% 100%, rgba(173, 160, 229, 0.32), transparent 75%),
    radial-gradient(ellipse 34% 42% at 76% 88%, rgba(198, 229, 237, 0.22), transparent 72%),
    radial-gradient(ellipse 58% 52% at 62% 22%, rgba(218, 218, 240, 0.32), transparent 74%),
    radial-gradient(ellipse 46% 58% at 5% 96%, rgba(244, 226, 226, 0.18), transparent 78%),
    linear-gradient(128deg, var(--ux410-page-warm) 0%, var(--ux410-page) 48%, var(--ux410-page-soft) 100%);
}

#login-screen .login-composition {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) var(--ux410-card-width);
  grid-template-rows: auto minmax(0, 1fr);
  width: min(94vw, var(--ux410-shell));
  min-height: calc(100dvh - clamp(40px, 5.6vw, 104px));
  margin-inline: auto;
  gap: 10px clamp(34px, 4vw, 72px);
  align-items: start;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

#login-screen .login-header {
  z-index: 10;
  display: flex;
  grid-column: 1 / -1;
  min-width: 0;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

#login-screen .login-logo-wrap {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: clamp(162px, 12vw, 205px);
  min-height: 44px;
  margin: 0;
  filter: none;
  opacity: 1;
}

#login-screen .login-logo {
  position: absolute;
  top: 50%;
  left: 0;
  display: block;
  width: 100%;
  height: auto;
  transform: translateY(-50%);
}

#login-screen .login-logo--dark { visibility: hidden; opacity: 0; }

#login-screen .login-header-utilities {
  display: flex;
  align-items: center;
  gap: 10px;
}

#login-screen .auth-theme-toggle,
#login-screen .login-header-support {
  position: static;
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  padding: 9px 13px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ux410-line);
  border-radius: 13px;
  color: #4c3f5d;
  background: rgba(255, 253, 250, 0.72);
  box-shadow: 0 7px 22px rgba(45, 30, 82, 0.06);
  font-size: 0.78rem;
  font-weight: 750;
  text-decoration: none;
  backdrop-filter: blur(12px);
}

#login-screen .login-header-support:hover { border-color: rgba(111, 67, 214, 0.38); color: var(--ux410-brand); }

#login-screen .login-brand {
  position: relative;
  z-index: 1;
  display: flex;
  min-width: 0;
  min-height: clamp(620px, calc(100dvh - 128px), 820px);
  padding: clamp(52px, 7vh, 78px) clamp(18px, 2vw, 34px) 24px;
  align-items: flex-start;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  isolation: auto;
}

#login-screen .login-brand::before,
#login-screen .login-brand::after { display: none; }

#login-screen .login-brand-copy {
  position: relative;
  z-index: 3;
  width: min(510px, 65%);
}

/* Localized contrast support only; keep the center artwork crisp and unwashed. */
#login-screen .login-brand-copy::before {
  position: absolute;
  z-index: -1;
  inset: -24px -48px -24px -24px;
  content: "";
  border-radius: 30px;
  background: radial-gradient(ellipse at 25% 50%, rgba(251, 250, 248, 0.24) 0%, rgba(248, 247, 248, 0.11) 50%, transparent 72%);
  pointer-events: none;
}

#login-screen .login-brand-kicker {
  margin: 0 0 16px;
  color: #6036bc;
  font-size: clamp(0.72rem, 0.75vw, 0.82rem);
  font-weight: 850;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

#login-screen .login-brand h1 {
  max-width: 10ch;
  margin: 0;
  color: var(--ux410-ink);
  font-size: clamp(3.25rem, 4.25vw, 4.3rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  text-wrap: balance;
  text-shadow: 0 2px 14px rgba(255, 255, 255, 0.48);
}

#login-screen .login-brand-description {
  max-width: 26rem;
  margin: 21px 0 0;
  color: #51475f;
  font-size: clamp(0.98rem, 1.05vw, 1.08rem);
  font-weight: 620;
  line-height: 1.55;
}

#login-screen .login-brand-proof {
  display: inline-flex;
  max-width: 28rem;
  min-height: 44px;
  margin-top: 23px;
  padding: 0;
  align-items: center;
  gap: 11px;
  border: 0;
  border-radius: 0;
  color: #3d3150;
  background: transparent;
  box-shadow: none;
  font-size: 0.86rem;
  line-height: 1.35;
}

#login-screen .login-proof-mark {
  position: relative;
  flex: 0 0 42px;
  width: 42px;
  height: 2px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #7449ea, #9473f1);
}

#login-screen .login-proof-mark::after {
  position: absolute;
  top: 50%;
  right: -1px;
  width: 10px;
  height: 10px;
  content: "";
  border-radius: 50%;
  background: #6d43e2;
  transform: translateY(-50%);
}

#login-screen .login-mountain {
  position: absolute;
  z-index: 1;
  inset: -42px -38% -62px -10%;
  overflow: visible;
  opacity: 1;
  pointer-events: none;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  -webkit-mask-image:
    linear-gradient(90deg, rgba(0, 0, 0, 0.22) 0%, #000 6%, #000 72%, rgba(0, 0, 0, 0.74) 83%, rgba(0, 0, 0, 0.2) 94%, transparent 100%),
    linear-gradient(180deg, transparent 0%, #000 7%, #000 91%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(90deg, rgba(0, 0, 0, 0.22) 0%, #000 6%, #000 72%, rgba(0, 0, 0, 0.74) 83%, rgba(0, 0, 0, 0.2) 94%, transparent 100%),
    linear-gradient(180deg, transparent 0%, #000 7%, #000 91%, transparent 100%);
  mask-composite: intersect;
}

#login-screen .login-mountain-media {
  position: absolute;
  inset: 0;
  display: block;
  background-image: url("../../img/login/mountain-desktop.webp");
  background-repeat: no-repeat;
  background-position: var(--ux410-art-position);
  background-size: cover;
}

#login-screen .login-mountain::after {
  position: absolute;
  inset: 0;
  content: "";
  background: transparent;
}

#login-screen .login-art-caption,
#login-screen .login-card-accent { display: none; }

#login-screen .login-panel {
  position: relative;
  z-index: 3;
  display: grid;
  min-width: 0;
  min-height: clamp(620px, calc(100dvh - 128px), 820px);
  padding: 22px 0 28px;
  align-items: center;
  justify-items: end;
  align-self: stretch;
  overflow: visible;
  background: transparent;
}

#login-screen .login-panel::before,
#login-screen .login-panel::after { display: none; }

#login-screen .login-card {
  box-sizing: border-box;
  width: min(100%, var(--ux410-card-width));
  max-width: none;
  height: auto;
  min-width: 0;
  margin: 0;
  padding: clamp(29px, 2.3vw, 36px);
  overflow: visible;
  border: 1px solid var(--ux410-line);
  border-radius: 26px;
  background: var(--ux410-card);
  box-shadow: 0 24px 64px rgba(45, 30, 82, 0.17), 0 4px 16px rgba(45, 30, 82, 0.055);
  backdrop-filter: blur(17px);
}

#login-screen .auth-context-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px;
  margin: 0 0 27px;
  padding: 5px;
  border: 1px solid rgba(68, 48, 105, 0.12);
  border-radius: 17px;
  background: #f1ecf6;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

#login-screen .auth-context-switch button {
  display: grid;
  grid-template-columns: 21px minmax(0, 1fr);
  min-width: 0;
  min-height: 62px;
  gap: 8px;
  padding: 9px 10px;
  align-items: center;
  border: 1px solid transparent;
  border-radius: 13px;
  color: #706778;
  background: transparent;
  text-align: left;
}

#login-screen .auth-context-switch button[aria-pressed="true"] {
  border-color: #6f43d6;
  color: #fff;
  background: linear-gradient(135deg, #7044e8, #5c32d0);
  box-shadow: 0 8px 20px rgba(91, 51, 198, 0.25);
}

#login-screen .auth-context-check {
  display: grid;
  width: 21px;
  height: 21px;
  border: 1px solid #cfc6d8;
  border-radius: 50%;
  color: transparent;
  font-size: 0.69rem;
  place-items: center;
}

#login-screen .auth-context-switch button[aria-pressed="true"] .auth-context-check {
  border-color: rgba(255, 255, 255, 0.75);
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
}

#login-screen .auth-context-switch button[aria-pressed="true"] small { color: rgba(255, 255, 255, 0.84); }
#login-screen .auth-context-switch button > span:last-child { display: grid; min-width: 0; gap: 3px; }
#login-screen .auth-context-switch strong { font-size: 0.78rem; line-height: 1.15; }
#login-screen .auth-context-switch small { overflow: hidden; font-size: 0.64rem; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }

#login-screen .login-form-heading { margin: 0 0 22px; padding: 0; text-align: left; }
#login-screen .login-form-kicker { margin: 0 0 8px; color: #6940c7; font-size: 0.69rem; font-weight: 850; letter-spacing: 0.13em; text-transform: uppercase; }
#login-screen .login-view h2 { margin: 0; color: var(--ux410-ink); font-size: clamp(1.9rem, 2.2vw, 2.25rem); line-height: 1.08; letter-spacing: -0.035em; }
#login-screen .login-form-heading > p:last-child,
#login-screen .login-result-view > p:not(.login-form-kicker) { max-width: 43ch; margin: 9px 0 0; color: var(--ux410-muted); font-size: 0.9rem; line-height: 1.52; }
#login-screen .public-entry-actions,
#login-screen .public-oauth-grid,
#login-screen .login-email-form { gap: 11px; }

#login-screen .public-oauth-button.experience-auth-method,
#login-screen .public-email-button.experience-auth-method {
  width: 100%;
  min-height: 52px;
  padding-inline: 15px;
  border: 1px solid #ded7e5;
  border-radius: 13px;
  color: #2e2440;
  background: #fff;
  box-shadow: 0 5px 15px rgba(48, 33, 76, 0.045);
  font-size: 0.91rem;
}

#login-screen .public-oauth-button.experience-auth-method:hover:not(:disabled),
#login-screen .public-email-button.experience-auth-method:hover:not(:disabled) { border-color: rgba(105, 67, 198, 0.42); background: #fefcff; box-shadow: 0 9px 22px rgba(66, 40, 115, 0.09); transform: translateY(-1px); }
#login-screen .experience-auth-method__icon { flex: 0 0 32px; width: 32px; height: 32px; border-radius: 10px; background: #f6f2fa; }
#login-screen .public-signup-action { min-height: 44px; margin-top: 2px; }
#login-screen :is(.login-text-action, .login-back-action, .login-secondary-action, .login-password-toggle, .login-support a) { min-width: 44px; min-height: 44px; }
#login-screen .login-support a { display: inline-flex; align-items: center; }
#login-screen .form-group { margin-bottom: 2px; }
#login-screen .form-group label { color: #453750; }
#login-screen .form-control { min-height: 48px; border-color: #ddd6e4; border-radius: 12px; color: #2e2440; background: #fff; font-size: 1rem; }
#login-screen .form-control:focus { border-color: #7550df; box-shadow: 0 0 0 4px rgba(117, 80, 223, 0.12); }
#login-screen .btn-primary { min-height: 48px; border-radius: 12px; background: linear-gradient(135deg, #7550df, #6338c8); box-shadow: 0 8px 20px rgba(94, 53, 184, 0.2); }
#login-screen .login-support { margin-top: 19px; padding-top: 16px; border-color: rgba(68, 48, 105, 0.12); color: #746b7d; }
#login-screen :is(.experience-auth-method, .auth-context-switch button, .auth-theme-toggle, .login-header-support, .login-password-toggle, .btn-primary, .experience-button, .experience-text-action, a):focus-visible { outline: 3px solid rgba(105, 66, 202, 0.32); outline-offset: 3px; }
#login-screen .experience-auth-method:active:not(:disabled) { transform: translateY(0); }

/* Canonical Student Portal dark semantics: canvas, elevated surface, control surface,
   input surface, text and borders. Purple remains the interaction accent only. */
html[data-theme="dark"] #login-screen {
  --ux410-page: #0e0d17;
  --ux410-card: #171623;
  --ux410-control: #1c1a2a;
  --ux410-input: #2a2342;
  --ux410-ink: #f7f5ff;
  --ux410-muted: #b7b0c9;
  --ux410-line: #343145;
  --ux410-brand: #8b63ff;
  color-scheme: dark;
}
html[data-theme="dark"] #login-screen.login-wrapper {
  color: var(--ux410-ink);
  background:
    radial-gradient(ellipse 44% 58% at 74% 48%, rgba(21, 34, 56, 0.28), transparent 78%),
    linear-gradient(145deg, var(--ux410-page) 0%, #12111e 100%);
}
html[data-theme="dark"] #login-screen .login-composition { border: 0; border-radius: 0; background: transparent; box-shadow: none; }
html[data-theme="dark"] #login-screen .login-brand { border: 0; border-radius: 0; background: transparent; box-shadow: none; }
html[data-theme="dark"] #login-screen .login-panel { background: transparent; }
html[data-theme="dark"] #login-screen .login-logo--light { visibility: hidden; opacity: 0; }
html[data-theme="dark"] #login-screen .login-logo--dark { visibility: visible; opacity: 1; }
html[data-theme="dark"] #login-screen .login-mountain-media { background-image: url("../../img/login/mountain-desktop-dark.png"); }
html[data-theme="dark"] #login-screen .login-brand-copy::before { background: radial-gradient(ellipse at 25% 50%, rgba(14, 13, 23, 0.22) 0%, rgba(14, 13, 23, 0.1) 50%, transparent 72%); }
html[data-theme="dark"] #login-screen .login-mountain::after { background: transparent; }
html[data-theme="dark"] #login-screen .login-brand h1 { color: #fbf9ff; text-shadow: 0 3px 20px rgba(9, 10, 18, 0.32); }
html[data-theme="dark"] #login-screen .login-brand-kicker { color: #cbb9f6; }
html[data-theme="dark"] #login-screen .login-brand-description { color: #d4cddb; }
html[data-theme="dark"] #login-screen .login-brand-proof { color: #eee8f4; }
html[data-theme="dark"] #login-screen :is(.auth-theme-toggle, .login-header-support) { border-color: var(--ux410-line); color: var(--ux410-ink); background: rgba(23, 22, 35, 0.92); box-shadow: 0 9px 24px rgba(0, 0, 0, 0.24); }
html[data-theme="dark"] #login-screen .login-card { border-color: var(--ux410-line) !important; background: var(--ux410-card) !important; box-shadow: 0 24px 58px rgba(0, 0, 0, 0.38) !important; }
html[data-theme="dark"] #login-screen .auth-context-switch { border-color: var(--ux410-line); background: var(--ux410-control); }
html[data-theme="dark"] #login-screen .auth-context-switch button { color: var(--ux410-muted); }
html[data-theme="dark"] #login-screen .auth-context-switch button[aria-pressed="true"] { border-color: #8f70eb; color: #fff; background: linear-gradient(135deg, #7651dc, #5f3ac1); box-shadow: 0 8px 19px rgba(62, 35, 126, 0.34); }
html[data-theme="dark"] #login-screen .login-view h2 { color: #f8f5fc; }
html[data-theme="dark"] #login-screen :is(.login-form-heading > p:last-child, .login-result-view > p:not(.login-form-kicker), .public-signup-action, .login-support, .login-status) { color: var(--ux410-muted); }
html[data-theme="dark"] #login-screen .form-group label { color: var(--ux410-ink) !important; }
html[data-theme="dark"] #login-screen :is(.public-oauth-button.experience-auth-method, .public-email-button.experience-auth-method, .form-control) { border-color: #4a405e !important; color: #f0ecf6 !important; background: var(--ux410-input) !important; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.16) !important; }
html[data-theme="dark"] #login-screen .form-control:focus { border-color: #9b7ee8 !important; box-shadow: 0 0 0 4px rgba(155, 126, 232, 0.2) !important; }
html[data-theme="dark"] #login-screen .btn-primary { color: #fff !important; background: linear-gradient(135deg, #805ee3, #6841c8) !important; box-shadow: 0 9px 23px rgba(80, 48, 153, 0.34) !important; }
html[data-theme="dark"] #login-screen :is(.public-oauth-button.experience-auth-method, .public-email-button.experience-auth-method):hover:not(:disabled) { border-color: #4a4561 !important; background: var(--ux410-control) !important; }
html[data-theme="dark"] #login-screen .experience-auth-method__icon { background: var(--ux410-control); }
html[data-theme="dark"] #login-screen .login-support { border-color: var(--ux410-line); }

/* Tablet landscape and compact laptop: dedicated lower-height split. */
@media (min-width: 64rem) and (max-width: 79.9375rem) {
  #login-screen { --ux410-card-width: 470px; --ux410-art-position: 64% 48%; }
  #login-screen.login-wrapper { padding: 18px 24px; }
  #login-screen .login-composition { grid-template-columns: minmax(0, 1.05fr) minmax(450px, 0.95fr); width: 100%; min-height: calc(100dvh - 36px); gap: 4px 28px; }
  #login-screen .login-header { min-height: 48px; }
  #login-screen .login-logo-wrap { width: 154px; }
  #login-screen .login-brand,
  #login-screen .login-panel { min-height: calc(100dvh - 98px); }
  #login-screen .login-brand { padding: 42px 12px 12px; }
  #login-screen .login-brand-copy { width: min(420px, 83%); }
  #login-screen .login-brand h1 { font-size: clamp(2.75rem, 4.6vw, 3.45rem); }
  #login-screen .login-brand-description { font-size: 0.94rem; }
  #login-screen .login-mountain { inset: 0 -3% -8px -12%; }
  #login-screen .login-panel { padding: 12px 0 20px; justify-items: center; }
  #login-screen .login-card { padding: 25px 28px; }
}

/* Desktop/widescreen uses the Portal's true 2.2:1 panorama pair as a continuous
   environmental canvas. A modest full-bleed overscan preserves its aspect ratio,
   keeps every viewport edge covered and places the summit clear of the Auth card. */
@media (min-width: 80rem) {
  #login-screen {
    --ux410-card-width: clamp(470px, 35vw, 500px);
    --ux410-art-position: right center;
  }
  #login-screen.login-wrapper {
    padding-top: clamp(26px, 3vh, 38px);
    padding-bottom: clamp(24px, 3vh, 38px);
  }
  #login-screen .login-composition {
    min-height: calc(100dvh - clamp(50px, 6vh, 76px));
    grid-template-rows: minmax(56px, auto) minmax(0, 1fr);
    row-gap: clamp(12px, 1.8vh, 22px);
  }
  #login-screen .login-header {
    min-height: 56px;
  }
  #login-screen .login-brand,
  #login-screen .login-panel {
    min-height: clamp(590px, calc(100dvh - 152px), 900px);
  }
  #login-screen .login-brand {
    padding-top: clamp(48px, 7vh, 76px);
  }
  #login-screen .login-brand-copy {
    width: min(480px, 62%);
  }
  #login-screen .login-brand h1 {
    max-width: 10.5ch;
    font-size: clamp(3.15rem, 3.5vw, 4rem);
  }
  #login-screen .login-brand-description {
    display: block;
  }
  #login-screen .login-brand-proof {
    display: inline-flex;
  }
  #login-screen .login-mountain {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100dvh;
    -webkit-mask-image: none;
    mask-image: none;
  }
  #login-screen .login-mountain-media {
    background-image: url("../../img/login/mountain-mobile.webp");
    background-position: var(--ux410-art-position);
    background-size: auto 134%;
    image-rendering: auto;
  }
  html[data-theme="dark"] #login-screen {
    --ux410-page: #080d16;
    --ux410-card: rgba(15, 20, 29, 0.97);
    --ux410-control: #18202d;
    --ux410-input: #202a39;
    --ux410-line: #303a4a;
  }
  html[data-theme="dark"] #login-screen.login-wrapper {
    background: linear-gradient(145deg, #080d16 0%, #101824 100%);
  }
  html[data-theme="dark"] #login-screen .login-mountain-media {
    background-image: url("../../img/login/mountain-mobile-dark.png");
  }
  html[data-theme="dark"] #login-screen :is(.auth-theme-toggle, .login-header-support) {
    border-color: var(--ux410-line);
    background: rgba(15, 20, 29, 0.9);
  }
  html[data-theme="dark"] #login-screen :is(.public-oauth-button.experience-auth-method, .public-email-button.experience-auth-method, .form-control) {
    border-color: #374253 !important;
  }
}

/* Tablet portrait: brand, story, substantial art, then immediate Auth. */
@media (min-width: 48rem) and (max-width: 63.9375rem) and (orientation: portrait) {
  #login-screen { --ux410-art-position: 63% 48%; --ux410-card-width: 560px; }
  #login-screen.login-wrapper { padding: 18px clamp(22px, 4vw, 36px) 34px; }
  #login-screen .login-composition { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto auto; width: 100%; min-height: 0; gap: 0; }
  #login-screen .login-header { min-height: 52px; }
  #login-screen .login-brand { display: block; min-height: 295px; padding: 18px clamp(24px, 5vw, 44px) 0; }
  #login-screen .login-brand-copy { width: min(365px, 54%); margin-top: 0; }
  #login-screen .login-brand-copy::before { inset: -22px -58px -22px -24px; }
  #login-screen .login-brand-kicker { margin-bottom: 9px; }
  #login-screen .login-brand h1 { max-width: 11ch; font-size: clamp(2.25rem, 5vw, 2.65rem); }
  #login-screen .login-brand-description { margin-top: 8px; font-size: 0.86rem; line-height: 1.38; }
  #login-screen .login-brand-proof { min-height: 26px; margin-top: 6px; font-size: 0.7rem; }
  #login-screen .login-proof-mark { flex-basis: 30px; width: 30px; }
  #login-screen .login-mountain { position: absolute; inset: -28px -10% -54px -10%; width: auto; height: auto; margin: 0; -webkit-mask-image: radial-gradient(ellipse 82% 78% at 54% 48%, #000 0%, #000 78%, rgba(0, 0, 0, 0.72) 88%, transparent 100%); mask-image: radial-gradient(ellipse 82% 78% at 54% 48%, #000 0%, #000 78%, rgba(0, 0, 0, 0.72) 88%, transparent 100%); }
  #login-screen .login-mountain-media { background-image: url("../../img/login/mountain-mobile.webp"); }
  #login-screen .login-mountain::after { background: transparent; }
  #login-screen .login-panel { min-height: 0; margin-top: -25px; padding: 0 0 24px; justify-items: center; }
  #login-screen .login-card { position: relative; z-index: 4; }
  html[data-theme="dark"] #login-screen .login-mountain-media { background-image: url("../../img/login/mountain-mobile-dark.png"); }
  html[data-theme="dark"] #login-screen .login-mountain::after { background: transparent; }
}

/* Compact mobile: independent editorial stack with early Auth availability. */
@media (max-width: 47.9375rem) {
  #login-screen { --ux410-card-width: 100%; --ux410-art-position: 63% 47%; }
  #login-screen.login-wrapper { padding: 0; background: radial-gradient(circle at 8% 4%, rgba(218, 207, 239, 0.42), transparent 23rem), radial-gradient(circle at 92% 24%, rgba(202, 222, 230, 0.27), transparent 22rem), linear-gradient(150deg, #faf8f3 0%, #f5f1f7 56%, #eef3f5 100%); }
  #login-screen .login-composition { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto auto; width: 100%; min-height: 0; gap: 0; }
  #login-screen .login-header { min-height: 58px; padding: 7px clamp(17px, 5vw, 23px); }
  #login-screen .login-logo-wrap { width: clamp(128px, 36vw, 148px); }
  #login-screen .login-header-utilities { gap: 7px; }
  #login-screen .login-header-support { display: inline-flex; min-width: 44px; min-height: 44px; padding: 8px 10px; font-size: 0.7rem; }
  #login-screen .auth-theme-toggle { width: 44px; padding-inline: 0; }
  #login-screen .auth-theme-toggle [data-theme-label] { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  #login-screen .login-brand { display: block; height: clamp(216px, 58vw, 242px); min-height: 0; padding: 5px clamp(18px, 5vw, 24px) 0; }
  #login-screen .login-brand-copy { display: block; width: min(78%, 310px); margin-top: 0; }
  #login-screen .login-brand-copy::before { inset: -14px -36px -16px -19px; }
  #login-screen .login-brand-kicker { display: block; margin-bottom: 4px; font-size: 0.58rem; }
  #login-screen .login-brand h1 { max-width: 10ch; font-size: clamp(1.75rem, 7.6vw, 2rem); line-height: 0.98; }
  #login-screen .login-brand-description { display: block; max-width: 18.5rem; margin-top: 5px; font-size: 0.72rem; line-height: 1.28; }
  #login-screen .login-brand-proof { display: inline-flex; min-height: 18px; margin-top: 3px; gap: 5px; font-size: 0.56rem; line-height: 1.1; white-space: nowrap; }
  #login-screen .login-proof-mark { flex-basis: 17px; width: 17px; }
  #login-screen .login-proof-mark::after { width: 6px; height: 6px; }
  #login-screen .login-mountain { position: absolute; inset: -14px -12vw -58px -10vw; width: auto; height: auto; margin: 0; -webkit-mask-image: radial-gradient(ellipse 82% 76% at 58% 46%, #000 0%, #000 77%, rgba(0, 0, 0, 0.72) 88%, transparent 100%); mask-image: radial-gradient(ellipse 82% 76% at 58% 46%, #000 0%, #000 77%, rgba(0, 0, 0, 0.72) 88%, transparent 100%); }
  #login-screen .login-mountain-media { background-image: url("../../img/login/mountain-mobile.webp"); }
  #login-screen .login-mountain::after { background: linear-gradient(90deg, rgba(246, 243, 247, 0.26) 0%, transparent 23%); }
  #login-screen .login-panel { display: block; min-height: 0; margin-top: -16px; padding: 0 clamp(12px, 4vw, 20px) 28px; }
  #login-screen .login-card { position: relative; z-index: 4; width: 100%; padding: clamp(20px, 5.5vw, 25px); border-radius: 24px; box-shadow: 0 17px 44px rgba(45, 30, 82, 0.13); }
  #login-screen .auth-context-switch { margin-bottom: 22px; }
  #login-screen .auth-context-switch button { min-height: 58px; padding: 8px; }
  #login-screen .auth-context-switch strong { font-size: 0.73rem; }
  #login-screen .auth-context-switch small { font-size: 0.59rem; }
  #login-screen .login-form-heading { margin-bottom: 19px; }
  #login-screen .login-view h2 { font-size: clamp(1.72rem, 7.6vw, 2rem); }
  #login-screen .login-form-heading > p:last-child { font-size: 0.84rem; }
  #login-screen :is(.public-oauth-button.experience-auth-method, .public-email-button.experience-auth-method) { min-height: 50px; }
  #login-screen .login-support { margin-top: 17px; padding-top: 15px; }
  html[data-theme="dark"] #login-screen.login-wrapper { background: radial-gradient(circle at 91% 12%, rgba(76, 101, 123, 0.17), transparent 24rem), #10151c; }
  html[data-theme="dark"] #login-screen .login-mountain-media { background-image: url("../../img/login/mountain-mobile-dark.png"); }
  html[data-theme="dark"] #login-screen .login-mountain::after { background: linear-gradient(90deg, rgba(16, 21, 28, 0.26) 0%, transparent 23%); }
}

/* Keep the Portal panorama pair on compact phones for an efficient hero crop. */
@media (max-width: 30rem) {
  #login-screen { --ux410-art-position: 66% 48%; }
}

@media (max-width: 22.5rem) {
  #login-screen .login-header { gap: 8px; }
  #login-screen .login-logo-wrap { width: 112px; }
  #login-screen .login-header-utilities { gap: 5px; }
  #login-screen .login-header-support { display: inline-flex; padding-inline: 8px; font-size: 0.66rem; }
  #login-screen .login-panel { padding-inline: 10px; }
  #login-screen .login-card { padding-inline: 16px; }
  #login-screen .auth-context-switch button { grid-template-columns: 18px minmax(0, 1fr); gap: 5px; padding-inline: 6px; }
  #login-screen .auth-context-check { width: 18px; height: 18px; }
  #login-screen .auth-context-switch small { display: none; }
}

@media (max-width: 47.9375rem) and (max-height: 40rem) {
  #login-screen .login-header { min-height: 52px; padding-block: 5px; }
  #login-screen .login-logo-wrap { width: 120px; }
  #login-screen .login-brand { height: clamp(174px, 49vw, 194px); padding-top: 2px; }
  #login-screen .login-brand-copy { display: block; }
  #login-screen .login-brand-kicker { margin-bottom: 5px; }
  #login-screen .login-brand h1 { font-size: clamp(1.63rem, 7.2vw, 1.82rem); }
  #login-screen .login-brand-description { margin-top: 6px; }
  #login-screen .login-brand-proof { margin-top: 3px; }
  #login-screen .login-panel { margin-top: -8px; }
  #login-screen .login-card { padding-block: 18px; }
  #login-screen .auth-context-switch { margin-bottom: 16px; }
  #login-screen .login-form-heading { margin-bottom: 15px; }
}

/* Short tablet landscape stays split and dense enough for the methods state. */
@media (min-width: 43.75rem) and (max-width: 63.9375rem) and (max-height: 50rem) and (orientation: landscape) {
  #login-screen { --ux410-card-width: 445px; --ux410-art-position: 65% 48%; }
  #login-screen.login-wrapper { padding: 12px 16px; }
  #login-screen .login-composition { grid-template-columns: minmax(0, 1fr) minmax(420px, 0.95fr); grid-template-rows: auto 1fr; width: 100%; min-height: calc(100dvh - 24px); gap: 4px 18px; }
  #login-screen .login-header { min-height: 46px; }
  #login-screen .login-logo-wrap { width: 142px; }
  #login-screen .login-brand,
  #login-screen .login-panel { min-height: calc(100dvh - 78px); }
  #login-screen .login-brand { display: flex; padding: 34px 8px 8px; }
  #login-screen .login-brand-copy { width: min(370px, 88%); }
  #login-screen .login-brand-kicker { margin-bottom: 9px; font-size: 0.64rem; }
  #login-screen .login-brand h1 { font-size: clamp(2.35rem, 4.6vw, 3rem); }
  #login-screen .login-brand-description { margin-top: 12px; font-size: 0.85rem; }
  #login-screen .login-brand-proof { display: none; }
  #login-screen .login-mountain { position: absolute; inset: 0 -4% -5px -13%; width: auto; height: auto; margin: 0; }
  #login-screen .login-mountain-media { background-image: url("../../img/login/mountain-desktop.webp"); }
  #login-screen .login-panel { display: grid; margin: 0; padding: 8px 0 14px; justify-items: center; }
  #login-screen .login-card { padding: 20px 24px; border-radius: 22px; }
  html[data-theme="dark"] #login-screen .login-mountain-media { background-image: url("../../img/login/mountain-desktop-dark.png"); }
}

@media (min-width: 120rem) {
  #login-screen { --ux410-shell: 1720px; --ux410-card-width: 530px; }
  #login-screen .login-brand,
  #login-screen .login-panel { min-height: clamp(820px, calc(100dvh - 150px), 1120px); }
  #login-screen .login-mountain-media { background-size: auto 132%; }
  #login-screen .login-brand h1 { font-size: 4rem; }
}

@keyframes ux410-auth-reveal {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ux410-context-check {
  0% { transform: scale(0.82); }
  68% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

@media (prefers-reduced-motion: no-preference) {
  #login-screen :is(.auth-context-switch button, .experience-auth-method, .auth-theme-toggle, .login-header-support, .login-logo, .login-card) { transition: background-color 190ms ease, border-color 190ms ease, box-shadow 210ms ease, color 190ms ease, opacity 190ms ease, transform 190ms ease; }
  #login-screen :is(.experience-auth-method__icon, .auth-context-check) { transition: background-color 190ms ease, border-color 190ms ease, color 190ms ease, transform 190ms ease; }
  #login-screen .login-view:not([hidden]) > .login-form-heading { animation: ux410-auth-reveal 260ms ease-out both; }
  #login-screen .login-view:not([hidden]) :is(.public-entry-actions, .login-email-form, .login-result-view) { animation: ux410-auth-reveal 320ms 45ms ease-out both; }
  #login-screen .experience-auth-method:hover:not(:disabled) .experience-auth-method__icon { transform: translateX(2px) scale(1.04); }
  #login-screen .experience-auth-method:active:not(:disabled),
  #login-screen .auth-context-switch button:active { transform: translateY(1px) scale(0.99); }
  #login-screen .auth-context-switch button[aria-pressed="true"] .auth-context-check { animation: ux410-context-check 260ms ease-out; }
}

@media (prefers-reduced-motion: reduce) {
  #login-screen,
  #login-screen *,
  #login-screen *::before,
  #login-screen *::after { animation: none !important; scroll-behavior: auto !important; transition: none !important; }
}