@media (max-width: 980px) {
  .auth-page {
    grid-template-columns: 1fr;
  }

  .auth-card {
    width: 100%;
    min-height: 100vh;
    margin: 0 auto;
  }

  .auth-visual {
    display: none;
  }

  .app-topbar {
    padding-inline: var(--space-3);
  }

  .app-topbar__menu,
  .app-sidebar__close {
    display: inline-grid;
  }

  .location-chip span:nth-of-type(1),
  .profile-trigger__copy {
    display: none;
  }

  .application-frame {
    display: block;
  }

  .app-sidebar {
    z-index: 40;
    top: var(--header-height);
    width: min(320px, 88vw);
    transform: translateX(-105%);
    transition: transform 200ms ease;
  }

  .app-sidebar.is-open {
    transform: translateX(0);
  }

  .app-main {
    padding: var(--space-5) var(--space-4) calc(92px + var(--space-6));
  }

  .mobile-nav {
    position: fixed;
    z-index: 45;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    min-height: 70px;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    gap: 0;
    padding: 0.35rem 0.25rem max(0.35rem, env(safe-area-inset-bottom));
    border-top: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 -8px 24px rgba(64, 58, 92, 0.08);
    backdrop-filter: blur(14px);
  }

  .mobile-nav__item {
    flex-direction: column;
    justify-content: center;
    gap: 0.2rem;
    padding: 0.3rem 0.2rem;
    color: var(--color-text-muted);
    font-size: 0.68rem;
    text-align: center;
  }

  .mobile-nav__item.is-active {
    color: var(--color-raspberry);
  }

  .mobile-nav__icon {
    width: 21px;
    height: 21px;
  }

  .mobile-add-button {
    position: fixed;
    z-index: 46;
    right: var(--space-4);
    bottom: calc(76px + env(safe-area-inset-bottom));
    display: grid;
    width: 54px;
    height: 54px;
    place-items: center;
    border: 0;
    border-radius: 50%;
    background: var(--color-raspberry);
    color: white;
    box-shadow: var(--shadow-md);
  }

  .mobile-add-button .icon {
    width: 26px;
    height: 26px;
  }

  .mode-grid,
  .state-showcase {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .grid--3,
  .grid--2,
  .settings-grid,
  .preview-card-grid,
  .agreement-preview-grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .welcome-card,
  .migration-card,
  .dashboard-block,
  .idea-preview-card {
    grid-template-columns: 1fr;
  }

  .hero__logo {
    display: none;
  }

  .welcome-card img,
  .migration-card > img,
  .dashboard-block img {
    width: min(230px, 72%);
    height: auto;
    justify-self: center;
    order: -1;
  }

  .idea-preview-card__image img {
    width: 100%;
    height: 170px;
  }

  .secret-symbol {
    min-height: 120px;
  }

  .page-heading {
    display: grid;
    align-items: start;
  }

  .page-heading .button {
    width: 100%;
  }

  .preview-toolbar {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  :root {
    --header-height: 64px;
  }

  .app-brand small,
  .location-chip,
  .app-topbar__actions > .icon-button {
    display: none;
  }

  .app-brand img {
    width: 40px;
    height: 40px;
  }

  .profile-trigger {
    padding: 0.15rem;
    background: transparent;
  }

  .profile-trigger > span:last-child {
    display: none;
  }

  .app-main {
    padding-inline: 0.75rem;
  }

  .page-heading h1 {
    font-size: 1.75rem;
  }

  .preview-notice {
    font-size: 0.78rem;
  }

  .dashboard-block__copy {
    display: grid;
  }

  .block-index {
    width: 32px;
    height: 32px;
  }

  .auth-card {
    padding: var(--space-6) var(--space-4);
  }

  .auth-brand {
    width: 220px;
  }

  .topbar__inner,
  .page {
    width: min(calc(100% - 1rem), var(--container));
  }

  .topbar__status .button {
    min-height: 38px;
    padding: 0.45rem 0.65rem;
    font-size: 0.75rem;
  }

  .hero,
  .card {
    padding: var(--space-4);
    border-radius: var(--radius-md);
  }

  .section__header,
  .service-row {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .section__header {
    display: grid;
  }

  .service-row .button {
    width: 100%;
  }
}

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