/* ==========================================================================
   PPRI Platform-Wide Multi-Device Responsive Design System
   Compatible with all mobile phones, foldables, tablets, laptops, and desktops.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Universal Viewport Containment & Fluid Elements
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
  -webkit-text-size-adjust: 100%;
}

img:not(.leaflet-tile),
svg:not(.leaflet-zoom-animated):not([class*="leaflet"]),
video,
canvas:not(.leaflet-pane canvas),
iframe {
  max-width: 100%;
  height: auto;
}

/* Strictly protect Leaflet map vector layers, panes, and geographic masks */
.leaflet-container svg,
.leaflet-pane svg,
.leaflet-zoom-animated,
.leaflet-overlay-pane svg {
  max-width: none !important;
  max-height: none !important;
  height: initial !important;
  width: initial !important;
}

/* Text Wrapping & Overflow Defenses */
a,
p,
h1,
h2,
h3,
h4,
h5,
h6,
li,
td,
th,
span,
blockquote {
  overflow-wrap: break-word;
  word-wrap: break-word;
}

pre,
code {
  max-width: 100%;
  overflow-x: auto;
  word-break: break-word;
  white-space: pre-wrap;
}

/* Universal CSS Grid & Flex child blowout defense */
.paper-layout > *,
.prose-wide > *,
.article-body > *,
.grid > *,
.card-grid > * {
  min-width: 0;
}

/* --------------------------------------------------------------------------
   2. Universal Responsive Table System
   -------------------------------------------------------------------------- */
.table-wrap,
.table-container,
.table-responsive {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.5rem 0;
  border-radius: var(--radius, 8px);
  border: 1px solid var(--line, #dce3e8);
  background: #fff;
  box-shadow: 0 2px 8px rgba(11, 29, 42, 0.03);
}

.table-wrap table,
.table-container table,
.table-responsive table {
  margin: 0 !important;
  border: 0 !important;
  width: 100%;
  min-width: 560px; /* Ensures column metrics never get crushed */
}

/* Custom subtle scrollbar styling for touch/mouse devices */
.table-wrap::-webkit-scrollbar {
  height: 6px;
}
.table-wrap::-webkit-scrollbar-track {
  background: #f1f5f9;
}
.table-wrap::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 999px;
}

/* --------------------------------------------------------------------------
   3. Breakpoint: Tablet Landscape & Small Laptops (max-width: 1024px)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .container {
    width: min(calc(100% - 44px), var(--max, 1180px));
  }

  .hub-stat-ribbon {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .p6-scenario-layout {
    grid-template-columns: 1fr;
  }

  .p6-scenario-panel {
    position: static;
  }
}

/* --------------------------------------------------------------------------
   4. Breakpoint: Tablet Portrait & Mobile Nav Drawer (max-width: 900px)
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .container {
    width: min(calc(100% - 36px), var(--max, 1180px));
  }

  /* Enhanced Scrollable Mobile Navigation Drawer */
  .site-header .nav-links,
  .home-header .nav-links {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: calc(100% + 8px);
    background: #0e2d22;
    border: 1px solid rgba(168, 224, 106, 0.22);
    border-radius: 12px;
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
    max-height: calc(100vh - 90px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 1000;
  }

  .site-header .nav-links.is-open,
  .home-header .nav-links.is-open {
    display: flex !important;
  }

  .site-header .nav-links a,
  .home-header .nav-links a {
    padding: 10px 12px !important;
    color: #ffffff !important;
    font-weight: 700 !important;
  }

  .site-header .nav-links a:hover,
  .site-header .nav-links a:focus-visible,
  .home-header .nav-links a:hover,
  .home-header .nav-links a:focus-visible {
    background: rgba(168, 224, 106, 0.18) !important;
    color: #c8ff54 !important;
  }

  /* Mobile Nav Groups & Submenus */
  .nav-group {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    width: 100% !important;
    margin-bottom: 4px;
    padding: 0 !important;
    position: relative !important;
  }
  .nav-group::after {
    display: none !important;
  }

  .nav-trigger {
    width: 100% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    text-align: left;
    padding: 10px 12px !important;
    border-radius: 8px;
    font-size: 0.92rem;
    font-weight: 800;
    color: #ffffff !important;
    background: transparent !important;
    box-sizing: border-box !important;
  }
  .nav-trigger:hover,
  .nav-trigger:focus-visible {
    background: rgba(168, 224, 106, 0.18) !important;
    color: #c8ff54 !important;
  }
  .nav-trigger::after {
    display: none !important;
    content: "" !important;
  }

  .nav-menu {
    position: static !important;
    width: 100% !important;
    transform: none !important;
    display: none !important;
    flex-direction: column !important;
    align-items: stretch !important;
    padding: 4px 0 6px 12px !important;
    box-shadow: none !important;
    border: 0 !important;
    border-left: 2px solid rgba(168, 224, 106, 0.45) !important;
    border-radius: 0 !important;
    margin: 2px 0 6px 0 !important;
    box-sizing: border-box !important;
    background: transparent !important;
  }

  .nav-group.is-open .nav-menu {
    display: flex !important;
  }

  .nav-menu::before,
  .nav-menu::after {
    display: none !important;
  }

  .home-page .nav-menu {
    border-left-color: rgba(168, 224, 106, 0.45) !important;
  }

  .nav-menu a {
    padding: 8px 10px !important;
    font-size: 0.84rem !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    background: transparent !important;
    display: block !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .nav-menu a:hover,
  .nav-menu a:focus-visible,
  .nav-menu a.is-current {
    background: rgba(168, 224, 106, 0.15) !important;
    color: #c8ff54 !important;
  }

  .home-page .nav-menu a {
    color: #ffffff !important;
    font-weight: 600 !important;
  }

  .home-page .nav-menu a:hover,
  .home-page .nav-menu a:focus-visible,
  .home-page .nav-menu a.is-current {
    background: rgba(168, 224, 106, 0.15) !important;
    color: #c8ff54 !important;
  }

  /* Grid Reductions */
  .grid-4,
  .grid-3 {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .paper-layout {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 28px !important;
  }

  .paper-layout > article,
  .paper-layout > .prose-wide {
    min-width: 0 !important;
    width: 100% !important;
  }

  .infographic-flow {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Phase 6 Controls */
  .p6-controls {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .phase6-dashboard {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .p6-source-grid {
    grid-template-columns: 1fr;
  }

  /* Homepage Section Refinements (max-width: 900px) */
  .home-section {
    padding: 56px 0;
  }
  .home-section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 24px;
  }
  .home-feature-layout {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }
  .featured-publication {
    min-height: auto;
    padding: 28px 24px;
  }
  .scenario-intro {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
  }
  .scenario-path {
    overflow-x: auto;
    width: 100%;
    padding-bottom: 4px;
  }
  .scenario-preview-topbar,
  .scenario-preview-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
  .scenario-actions {
    width: 100%;
    justify-items: stretch;
  }
  .scenario-actions .btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .scenario-preview-frame,
  .scenario-preview-frame iframe {
    height: 380px;
    min-height: 380px;
  }
  .question-workbench {
    grid-template-columns: 1fr !important;
    gap: 16px;
    padding: 14px;
  }
  .question-panel {
    min-height: auto;
    padding: 26px 20px;
  }
  .question-signal {
    display: none;
  }
  .research-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .platform-shell {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 26px 20px;
  }
  .participation {
    grid-template-columns: 1fr !important;
    gap: 24px;
    padding: 28px 20px;
  }
  .participation-art {
    min-height: 200px;
  }
}

/* --------------------------------------------------------------------------
   5. Breakpoint: Standard Mobile Devices (max-width: 640px)
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
  .container {
    width: calc(100% - 28px);
    margin: auto;
  }

  /* Homepage Section Refinements (max-width: 640px) */
  .home-section {
    padding: 40px 0;
  }
  .featured-publication h3 {
    font-size: clamp(1.7rem, 6.5vw, 2.2rem);
  }
  .featured-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
  .featured-footer .home-actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }
  .featured-footer .home-actions .btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .scenario-preview-frame,
  .scenario-preview-frame iframe {
    height: 320px;
    min-height: 320px;
  }
  .research-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .platform-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .participation {
    padding: 22px 16px;
  }
  .participation-copy .home-actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }
  .participation-copy .home-actions .btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  /* Page Heroes */
  .hero,
  .page-hero {
    padding: 42px 0 34px;
  }

  .page-hero h1,
  .hero h1 {
    font-size: clamp(1.65rem, 6.5vw, 2.15rem);
    line-height: 1.15;
    letter-spacing: -0.025em;
  }

  .page-hero p,
  .hero p {
    font-size: 0.92rem;
    line-height: 1.55;
    margin-top: 10px;
  }

  .section {
    padding: 42px 0;
  }

  /* Stack All Multi-Column Grids */
  .grid-4,
  .grid-3,
  .grid-2,
  .card-feature-grid,
  .infographic-flow,
  .fact-grid,
  .quick-grid,
  .evidence-process,
  .platform-grid {
    grid-template-columns: 1fr !important;
    gap: 14px;
  }

  /* Hub Stat Ribbon: Neutralize Negative Margin on Mobile */
  .hub-stat-ribbon {
    grid-template-columns: 1fr 1fr;
    margin: 16px auto 26px !important;
    gap: 10px;
  }

  .hub-stat-card {
    padding: 14px 16px;
  }

  .hub-stat-num {
    font-size: 1.45rem;
  }

  .hub-stat-label {
    font-size: 0.72rem;
  }

  /* Flow Step */
  .flow-step {
    padding: 16px 18px;
  }

  /* Taxonomy Banner */
  .taxonomy-banner {
    padding: 22px 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }

  .taxonomy-banner .btn {
    width: 100%;
    text-align: center;
  }

  /* Footers */
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
    padding-top: 18px;
  }

  /* Form Elements: Touch-Friendly Size (Min 44px) */
  input,
  select,
  textarea,
  button,
  .btn {
    min-height: 44px;
  }

  /* iOS Safari Auto-Zoom Prevention */
  input[type="text"],
  input[type="search"],
  input[type="email"],
  select,
  textarea {
    font-size: 16px !important;
  }

  /* Search Bar Layout */
  .search-form-row,
  form[action*="search.html"] {
    flex-direction: column;
    gap: 8px;
  }

  form[action*="search.html"] .btn,
  form[action*="search.html"] button {
    width: 100%;
  }
}

/* --------------------------------------------------------------------------
   6. Breakpoint: Small Mobile & Foldables (max-width: 380px)
   -------------------------------------------------------------------------- */
@media (max-width: 380px) {
  .container {
    width: calc(100% - 20px);
  }

  .brand-text strong {
    font-size: 0.88rem;
  }

  .hub-stat-ribbon {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .hub-card {
    padding: 16px;
  }

  .hub-card h3 {
    font-size: 1.05rem;
  }

  .hub-card p {
    font-size: 0.82rem;
  }

  .page-hero {
    padding: 34px 0 26px;
  }

  .btn {
    padding: 10px 14px;
    font-size: 0.84rem;
  }
}