/*
 * Shared responsive hardening for every USTC Time Series page.
 * Page-level styles keep their own visual identity; this layer only supplies
 * safe fluid sizing and consistent desktop/tablet/mobile behavior.
 */

html {
  max-width: 100%;
  overflow-x: clip;
}

body {
  min-width: 0;
  overflow-x: clip;
}

img,
video,
canvas,
svg {
  max-width: 100%;
  height: auto;
}

iframe {
  max-width: 100%;
}

.container,
main,
header,
footer,
section,
article,
.card,
.project-card,
.feature-card,
.system-card,
.path-card,
.version-card,
.evolution-card {
  min-width: 0;
}

h1,
h2,
h3,
h4,
p,
li,
td,
th,
a,
button {
  overflow-wrap: break-word;
}

pre {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-wrap,
.table-scroll,
.table-shell,
.leaderboard-scroll,
.benchmark-table-wrap,
.matrix-wrap {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.top-nav .nav-links,
.nav-bar .container {
  min-width: 0;
}

.nav-bar .container {
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 960px) {
  .project-grid,
  .feature-grid,
  .card-grid,
  .card-grid-3,
  .system-grid,
  .tech-grid,
  .scenario-grid,
  .overview-grid,
  .benchmark-grid,
  .stats-grid,
  .suite-grid,
  .evolution-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .top-nav .container {
    gap: 12px;
  }

  .hero-logo,
  .header-logo {
    max-width: min(100%, 680px);
  }
}

@media (max-width: 720px) {
  .top-nav .container {
    align-items: flex-start;
    flex-direction: column;
    gap: 0;
    padding-top: 10px;
    padding-bottom: 8px;
  }

  .top-nav .nav-brand {
    width: 100%;
    padding: 2px 0 6px;
  }

  .top-nav .nav-links {
    display: flex;
    width: 100%;
    min-width: 0;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 5px;
    padding: 4px 0 2px;
    overflow: visible;
  }

  .top-nav .nav-links > a,
  .top-nav .nav-dropdown-toggle {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
  }

  .nav-dropdown-menu {
    max-width: calc(100vw - 32px);
  }

  .nav-bar .container {
    padding-inline: 16px;
  }

  .nav-bar a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .project-grid,
  .feature-grid,
  .card-grid,
  .card-grid-2,
  .card-grid-3,
  .system-grid,
  .tech-grid,
  .scenario-grid,
  .overview-grid,
  .benchmark-grid,
  .stats-grid,
  .suite-grid,
  .evolution-grid,
  .hero-highlights,
  .hero-workflow-steps,
  .eval-split,
  .track-split,
  .stage-row,
  .version-grid,
  .pillar-list {
    grid-template-columns: 1fr;
  }

  h1,
  header h1 {
    max-width: 100%;
    font-size: clamp(1.55rem, 7vw, 2.05rem);
    line-height: 1.25;
    text-wrap: balance;
    overflow-wrap: anywhere;
  }

  h2,
  .section-title {
    overflow-wrap: anywhere;
  }

  .btn-row,
  .card-links,
  .page-actions,
  .resource-actions {
    max-width: 100%;
    flex-wrap: wrap;
  }

  .btn-row .btn,
  .card-links .card-btn,
  .page-actions a,
  .resource-actions a {
    min-height: 44px;
    justify-content: center;
  }

  .hero-workflow-head,
  .section-heading,
  .evolution-path {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-workflow-step::after,
  .route-step::after {
    display: none;
  }
}

@media (max-width: 480px) {
  :root {
    --topbar: 84px;
  }

  .container {
    width: 100%;
    padding-inline: 16px !important;
  }

  .topbar-inner {
    align-content: center;
    flex-wrap: wrap;
    gap: 4px 8px;
    padding-block: 6px;
  }

  .topbar-left,
  .topbar-right {
    width: 100%;
    min-width: 0;
  }

  .topbar-left {
    justify-content: flex-start;
  }

  .topbar-brand {
    min-width: 0;
    white-space: nowrap;
  }

  .topbar-right {
    justify-content: flex-start;
    gap: 6px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .topbar-right::-webkit-scrollbar {
    display: none;
  }

  .topbar-right .topbar-btn {
    flex: 0 0 auto;
    height: 28px;
    padding-inline: 8px;
  }

  .topbar-right .search-kbd {
    display: none;
  }

  .top-nav .nav-links > a,
  .top-nav .nav-dropdown-toggle {
    padding-inline: 11px;
    font-size: 0.8rem;
  }

  .btn-row {
    align-items: stretch;
    flex-direction: column;
  }

  .btn-row .btn,
  .page-actions a,
  .resource-actions a {
    width: 100%;
  }

  .card,
  .project-card,
  .feature-card,
  .system-card,
  .path-card,
  .version-card,
  .evolution-card {
    max-width: 100%;
  }

  p,
  li,
  td,
  th {
    overflow-wrap: anywhere;
  }
}

@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;
  }
}