.skip-link {
  position: fixed;
  z-index: var(--z-skip);
  top: -6rem;
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--glass-modal);
  color: var(--text-primary);
}

.skip-link:focus { top: calc(var(--safe-top) + var(--space-4)); }
.app-shell { min-height: 100vh; min-height: 100dvh; }

.state-screen {
  min-height: 100vh;
  min-height: 100dvh;
  padding: calc(var(--safe-top) + var(--space-6)) var(--layout-gutter) calc(var(--safe-bottom) + var(--space-6));
}

.error-layout,
.mfa-layout {
  display: grid;
  place-items: center;
}

.state-panel {
  display: grid;
  width: min(100%, 31rem);
  gap: var(--space-5);
  padding: clamp(1.4rem, 4vw, 2.5rem);
  border-radius: var(--radius-xl);
  text-align: center;
}

.auth-screen {
  display: grid;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  padding: clamp(.75rem, 2.2dvh, var(--space-6)) var(--layout-gutter);
  align-items: stretch;
  overflow: hidden;
  box-sizing: border-box;
}
.auth-layout {
  display: grid;
  width: min(100%, 92rem);
  height: 100%;
  min-height: 0;
  max-height: 100%;
  margin: auto;
  grid-template-columns: minmax(0, 1.15fr) minmax(24rem, .85fr);
  overflow: hidden;
  border-radius: clamp(1.6rem, 3vw, 2.7rem);
}

.auth-branding {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 0;
  padding: clamp(2rem, 5vw, 5rem);
  align-content: space-between;
  overflow: hidden;
  background:
    radial-gradient(circle at 68% 44%, color-mix(in srgb, var(--volt-accent) 34%, transparent), transparent 22rem),
    linear-gradient(145deg, #e7f4ef, #b9dfd3);
  color: #0b2b20;
}

.auth-branding::after {
  position: absolute;
  width: min(34rem, 74%);
  aspect-ratio: 1;
  right: -5%;
  top: 19%;
  border: 1px solid rgba(105, 255, 199, .22);
  border-radius: 42% 58% 64% 36% / 45% 38% 62% 55%;
  background: linear-gradient(145deg, rgba(91, 255, 198, .10), rgba(255, 255, 255, .02));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .2), 0 0 90px rgba(0, 195, 134, .12);
  content: "";
  transform: rotate(-12deg);
}

.auth-copy { position: relative; z-index: 1; max-width: 38rem; }
.auth-copy h1 { max-width: 9ch; margin: var(--space-4) 0; font-size: var(--font-size-display); line-height: .96; letter-spacing: -.055em; }
.auth-copy p { max-width: 42ch; color: rgba(11, 43, 32, .72); }
.auth-form-side {
  display: grid;
  min-width: 0;
  min-height: 0;
  padding: clamp(1.5rem, 4vw, 4rem);
  align-content: center;
  overflow: hidden;
  background: var(--glass-2);
}

.auth-form-wrap {
  display: grid;
  width: min(100%, 28rem);
  min-width: 0;
  max-height: 100%;
  margin: auto;
  gap: clamp(var(--space-3), 2.4dvh, var(--space-6));
}
.auth-mobile-brand { display: none; }

:root[data-theme="dark"] .auth-branding {
  background:
    radial-gradient(circle at 68% 44%, color-mix(in srgb, var(--volt-accent) 32%, transparent), transparent 22rem),
    linear-gradient(145deg, #00130d, color-mix(in srgb, var(--volt-accent) 17%, #031a13));
  color: #f2fff9;
}
:root[data-theme="dark"] .auth-copy p { color: rgba(235, 255, 247, .72); }

.dashboard { min-height: 100vh; min-height: 100dvh; }
.app-frame {
  display: grid;
  width: min(100%, 120rem);
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0 auto;
  padding: var(--space-4);
  gap: var(--space-4);
  grid-template-columns: var(--layout-sidebar) minmax(0, 1fr);
}

.desktop-sidebar {
  position: sticky;
  top: var(--space-4);
  display: grid;
  height: calc(100vh - var(--space-8));
  height: calc(100dvh - var(--space-8));
  min-height: 38rem;
  padding: var(--space-5);
  overflow: hidden;
  border-radius: var(--radius-xl);
  grid-template-rows: auto 1fr auto;
}

.app-main { min-width: 0; }
.desktop-topbar {
  position: sticky;
  z-index: var(--z-sticky);
  top: var(--space-4);
  display: flex;
  min-height: 5rem;
  margin-bottom: var(--space-4);
  padding: var(--space-3) var(--space-4) var(--space-3) var(--space-6);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  border-radius: var(--radius-lg);
}

.mobile-topbar,
.mobile-bottom-navigation { display: none; }
.page-container {
  width: min(100%, var(--layout-content));
  margin: 0 auto;
  padding: var(--space-2) var(--layout-gutter) var(--space-12);
}

.page { display: grid; gap: var(--space-5); animation: page-enter var(--duration-normal) var(--ease-standard); }
.page-header {
  display: flex;
  min-height: 4.8rem;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-5);
}
.page-header-copy { display: grid; gap: var(--space-1); }
.page-header-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--space-2); }

@keyframes page-enter {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-height: 760px) {
  .auth-screen { padding-top: max(var(--safe-top), .65rem); padding-bottom: max(var(--safe-bottom), .65rem); }
  .auth-branding { padding: clamp(1.35rem, 3vw, 2.75rem); }
  .auth-copy h1 { margin: var(--space-2) 0; font-size: clamp(2.35rem, 7.5vh, 4.5rem); }
  .auth-form-side { padding: clamp(.85rem, 2.4vw, 2rem); }
  .auth-form-wrap { gap: clamp(.55rem, 1.5dvh, var(--space-3)); }
  .auth-form-wrap .section-heading-copy { gap: 0; }
  .auth-form-wrap .section-heading .supporting-copy { display: none; }
  .auth-form-wrap .card { padding: clamp(.7rem, 1.8dvh, 1rem); }
  .auth-form-wrap .form { gap: clamp(.45rem, 1.2dvh, var(--space-2)); }
  .auth-form-wrap .form label { gap: .3rem; }
}

@media (max-height: 600px) {
  .auth-screen { padding: 0; }
  .auth-layout {
    height: 100vh;
    height: 100dvh;
    max-height: 100dvh;
    grid-template-columns: minmax(0, 1fr);
    border: 0;
    border-radius: 0;
  }
  .auth-branding { display: none; }
  .auth-form-side {
    height: 100%;
    padding: max(var(--safe-top), .45rem) max(var(--layout-gutter), .75rem) max(var(--safe-bottom), .45rem);
    background:
      radial-gradient(circle at 80% 12%, color-mix(in srgb, var(--volt-accent) 20%, transparent), transparent 17rem),
      var(--glass-2);
  }
  .auth-form-wrap { width: min(100%, 36rem); gap: .45rem; }
  .auth-mobile-brand { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); }
  .auth-mobile-brand > div { display: none; }
  .auth-form-wrap .section-heading { align-items: center; }
  #login-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: .6rem;
    row-gap: .4rem;
  }
  #login-form > label:nth-of-type(1),
  #login-form > label:nth-of-type(2),
  #login-submit,
  #signup-button { grid-column: span 1; }
  #login-form > .checkbox-row,
  #forgot-password,
  #login-message,
  #login-progress { grid-column: 1 / -1; }
  .auth-form-wrap > .text-button { min-height: 1.6rem; padding: .1rem; font-size: .75rem; }
}

@media (max-height: 430px) {
  .auth-form-wrap { gap: .3rem; }
  .auth-mobile-brand .brand-symbol { width: 2.25rem; height: 2.25rem; border-radius: .8rem; }
  .auth-mobile-brand .brand-symbol svg { width: 1.15rem; height: 1.15rem; }
  .auth-form-wrap .section-heading .eyebrow { display: none; }
  .auth-form-wrap .section-heading h2 { font-size: 1.1rem; line-height: 1; }
  .auth-form-wrap .icon-button { width: 2.25rem; min-height: 2.25rem; }
  .auth-form-wrap .card { padding: .5rem .65rem; }
  .auth-form-wrap .form { row-gap: .25rem; }
  .auth-form-wrap .form label { gap: .15rem; font-size: .72rem; }
  .auth-form-wrap input { min-height: 2.2rem; padding-top: .42rem; padding-bottom: .42rem; }
  .auth-form-wrap .primary-button,
  .auth-form-wrap .secondary-button { min-height: 2.2rem; padding-top: .35rem; padding-bottom: .35rem; }
  #forgot-password { min-height: 1.35rem; padding: 0; font-size: .74rem; }
  #login-message { min-height: 1rem; font-size: .72rem; }
  .auth-form-wrap > .text-button { min-height: 1.25rem; font-size: .7rem; }
}

@media (max-width: 1023px) {
  .app-frame { display: block; width: 100%; padding: 0; }
  .desktop-sidebar,
  .desktop-topbar { display: none; }
  .mobile-topbar {
    position: sticky;
    z-index: var(--z-sticky);
    top: 0;
    display: flex;
    min-height: calc(4.2rem + var(--safe-top));
    padding: calc(var(--safe-top) + var(--space-3)) var(--layout-gutter) var(--space-3);
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    border: 0;
    border-bottom: 1px solid var(--glass-border);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }
  .page-container {
    padding-top: var(--space-4);
    padding-bottom: calc(7.5rem + var(--safe-bottom));
  }
  .mobile-bottom-navigation {
    position: fixed;
    z-index: var(--z-navigation);
    right: max(var(--space-3), env(safe-area-inset-right, 0px));
    bottom: max(var(--space-3), var(--safe-bottom));
    left: max(var(--space-3), env(safe-area-inset-left, 0px));
    display: grid;
    min-height: 4.9rem;
    padding: var(--space-2);
    border-radius: var(--radius-xl);
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .state-screen { padding-right: 0; padding-left: 0; }
  .auth-screen { padding: 0; }
  .auth-layout {
    display: block;
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    max-height: 100dvh;
    border: 0;
    border-radius: 0;
  }
  .auth-branding { display: none; }
  .auth-form-side {
    height: 100%;
    min-height: 0;
    padding: max(var(--safe-top), var(--space-3)) var(--layout-gutter) max(var(--safe-bottom), var(--space-3));
    align-content: center;
    overflow: hidden;
    background:
      radial-gradient(circle at 80% 12%, color-mix(in srgb, var(--volt-accent) 20%, transparent), transparent 17rem),
      transparent;
  }
  .auth-form-wrap { max-height: 100%; gap: clamp(.55rem, 1.8dvh, var(--space-4)); }
  .auth-mobile-brand { display: grid; gap: clamp(.35rem, 1.1dvh, var(--space-3)); }
  .auth-mobile-brand h1 { margin: 0; font-size: clamp(2rem, 9vw, 3.35rem); line-height: .95; letter-spacing: -.055em; }
  .page-header { min-height: auto; align-items: flex-start; }
  .page-header-actions .hide-mobile { display: none; }
}

@media (max-width: 767px) and (max-height: 600px) {
  .auth-mobile-brand { display: flex; }
  .auth-mobile-brand > div { display: none; }
  .auth-form-wrap { width: min(100%, 36rem); gap: .4rem; }
}

@media (min-width: 1440px) {
  .app-frame { gap: var(--space-6); padding: var(--space-6); }
  .desktop-sidebar { top: var(--space-6); height: calc(100dvh - var(--space-12)); }
  .desktop-topbar { top: var(--space-6); }
}