:root {
      --accadis-yellow: #F9B122;
      --accadis-yellow-dark: #e29806;
      --accadis-yellow-light: #fff8e8;
      --accadis-navy: #1c2d4a;
      --accadis-blue: #2f5da8;
      --accadis-red: #c8102e;
      --accadis-green: #3d7a3e;
      --bg: #f7f7f5;
      --surface: #ffffff;
      --text: #222222;
      --muted: #666666;
      --accent: var(--accadis-yellow);
      --accent-light: var(--accadis-yellow-light);
      --border: #e4e2dc;
      --have: var(--accadis-green);
      --have-bg: #edf5ed;
      --partial: #b45309;
      --partial-bg: #fef3c7;
      --need: var(--accadis-red);
      --need-bg: #fde8ec;
      --cart: var(--accadis-navy);
      --cart-bg: #eef1f6;
      --shadow: 0 5px 18px rgba(28, 45, 74, 0.09);
      --radius: 10px;
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      font-family: "Open Sans", system-ui, -apple-system, sans-serif;
      background:
        radial-gradient(circle at 8% 8%, rgba(249, 177, 34, 0.1), transparent 22rem),
        linear-gradient(180deg, #fbfbf9 0%, var(--bg) 34rem);
      color: var(--text);
      line-height: 1.6;
      font-size: 15px;
    }

    .header {
      position: relative;
      z-index: 100;
      background: var(--surface);
      border-bottom: 1px solid rgba(28, 45, 74, 0.12);
      box-shadow: var(--shadow);
    }

    .header-top {
      background: var(--accadis-navy);
      color: #fff;
      padding: 0.45rem 1.25rem;
      font-size: 0.78rem;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      border-bottom: 1px solid rgba(255,255,255,0.12);
    }

    .header-ribbon {
      height: 4px;
      background: linear-gradient(
        90deg,
        var(--accadis-red) 0%,
        var(--accadis-yellow) 25%,
        var(--accadis-green) 50%,
        var(--accadis-blue) 75%,
        var(--accadis-red) 100%
      );
    }

    .header-top-inner {
      max-width: 960px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
    }

    .header-tagline {
      opacity: 0.9;
      font-weight: 600;
    }

    .header-inner {
      max-width: 960px;
      margin: 0 auto;
      padding: 1rem 1.25rem 0.75rem;
    }

    .header-brand {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 0.5rem;
    }

    .header-logo {
      height: 44px;
      width: auto;
      display: block;
      padding: 0.3rem 0.55rem;
      background: #fff;
      border-radius: 7px;
    }

    h1 {
      margin: 0;
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--accadis-navy);
      line-height: 1.25;
      letter-spacing: -0.02em;
    }

    .header-school {
      font-size: 0.82rem;
      color: var(--muted);
      font-weight: 400;
      margin-top: 0.15rem;
    }

    .subtitle {
      margin: 0 0 0.75rem;
      color: var(--muted);
      font-size: 0.9rem;
    }

    .subtitle a {
      color: var(--accadis-blue);
      text-decoration: none;
      font-weight: 600;
    }

    .subtitle a:hover {
      color: var(--accadis-navy);
      text-decoration: underline;
    }

    .resource-panel {
      margin: 0 0 1rem;
      padding: 0.7rem;
      border: 1px solid #ead89d;
      border-radius: var(--radius);
      background: linear-gradient(135deg, var(--accadis-yellow-light), #fff 75%);
    }

    .resource-panel-label {
      display: block;
      margin: 0 0 0.45rem 0.2rem;
      color: var(--accadis-navy);
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.07em;
      text-transform: uppercase;
    }

    .resource-actions {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 0.5rem;
    }

    .resource-btn {
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.4rem;
      padding: 0.55rem 0.7rem;
      border: 1px solid var(--border);
      border-radius: 6px;
      background: var(--surface);
      color: var(--accadis-navy);
      font-size: 0.78rem;
      font-weight: 700;
      line-height: 1.25;
      text-align: center;
      text-decoration: none;
      transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
    }

    .resource-btn:hover {
      transform: translateY(-1px);
      border-color: var(--accadis-yellow-dark);
      box-shadow: 0 4px 12px rgba(28, 45, 74, 0.1);
    }

    .resource-btn-primary {
      border-color: var(--accadis-navy);
      background: var(--accadis-navy);
      color: #fff;
    }

    .pwa-install-note {
      margin: 0.6rem 0.2rem 0.1rem;
      color: var(--muted);
      font-size: 0.75rem;
    }

    .progress-wrap {
      margin-bottom: 0.75rem;
    }

    .progress-label {
      display: flex;
      justify-content: space-between;
      font-size: 0.85rem;
      color: var(--muted);
      margin-bottom: 0.35rem;
    }

    .progress-bar {
      height: 8px;
      background: var(--border);
      border-radius: 999px;
      overflow: hidden;
    }

    .progress-fill {
      height: 100%;
      width: 0%;
      background: var(--accadis-yellow);
      border-radius: 999px;
      transition: width 0.25s ease;
    }

    .filters {
      display: flex;
      flex-wrap: wrap;
      gap: 0.4rem;
      padding-bottom: 0.75rem;
    }

    .filter-btn {
      border: 1px solid var(--border);
      background: var(--surface);
      color: var(--text);
      padding: 0.35rem 0.75rem;
      border-radius: 999px;
      font-size: 0.82rem;
      cursor: pointer;
      transition: background 0.15s, border-color 0.15s;
      min-height: 44px;
    }

    .filter-btn:hover {
      border-color: var(--accadis-yellow);
      color: var(--accadis-navy);
    }

    .filter-btn.active {
      background: var(--accadis-yellow);
      border-color: var(--accadis-yellow-dark);
      color: var(--accadis-navy);
      font-weight: 600;
    }

    :where(a, button, input):focus-visible {
      outline: 3px solid var(--accadis-blue);
      outline-offset: 3px;
    }

    main {
      max-width: 960px;
      margin: 0 auto;
      padding: 1.5rem 1.25rem 3.5rem;
    }

    section {
      margin-bottom: 1.75rem;
    }

    h2 {
      margin: 0 0 0.75rem;
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--accadis-navy);
      padding-bottom: 0.4rem;
      border-bottom: 1px solid var(--border);
      position: relative;
    }

    h2::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -1px;
      width: 76px;
      height: 4px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--accadis-red), var(--accadis-yellow), var(--accadis-green), var(--accadis-blue));
    }

    h3 {
      margin: 1.25rem 0 0.5rem;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--accadis-navy);
      text-transform: uppercase;
      letter-spacing: 0.06em;
      background: var(--accadis-yellow-light);
      padding: 0.45rem 0.75rem;
      border-left: 4px solid var(--accadis-yellow);
    }

    .card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
      border-top: 4px solid var(--accadis-yellow);
    }

    .item {
      display: grid;
      grid-template-columns: auto 72px 1fr;
      gap: 0.75rem;
      padding: 0.85rem 1rem;
      border-bottom: 1px solid var(--border);
      align-items: start;
      transition: background-color 0.15s ease, box-shadow 0.15s ease;
    }

    .item:hover { background: #fffdf7; box-shadow: inset 4px 0 var(--accadis-yellow); }

    .item:last-child { border-bottom: none; }

    .item.hidden { display: none; }

    .item input[type="checkbox"] {
      width: 1.15rem;
      height: 1.15rem;
      margin-top: 0.2rem;
      cursor: pointer;
      accent-color: var(--accadis-yellow-dark);
    }


    .item-thumb {
      width: 72px;
      height: 72px;
      border-radius: 8px;
      border: 1px solid var(--border);
      object-fit: contain;
      background: #fff;
      display: block;
    }

    .item-thumb-wrap {
      width: 72px;
      height: 72px;
      border-radius: 8px;
      border: 1px solid var(--border);
      background: #fff;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0;
      cursor: zoom-in;
      transition: transform 0.18s ease, box-shadow 0.18s ease;
    }

    .item-thumb-wrap:hover {
      transform: scale(1.16);
      box-shadow: 0 8px 24px rgba(28, 45, 74, 0.2);
      z-index: 2;
    }

    .item-thumb-wrap:hover .item-thumb {
      transform: scale(1.08);
    }

    .item-thumb { transition: transform 0.18s ease; }

    .item-body { min-width: 0; }

    .item-top {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.4rem 0.6rem;
      margin-bottom: 0.25rem;
    }

    .item-name {
      font-weight: 600;
      font-size: 0.95rem;
    }

    .qty {
      font-size: 0.78rem;
      color: var(--muted);
      background: var(--bg);
      padding: 0.1rem 0.45rem;
      border-radius: 4px;
    }

    .badge {
      font-size: 0.72rem;
      font-weight: 600;
      padding: 0.15rem 0.5rem;
      border-radius: 999px;
      text-transform: uppercase;
      letter-spacing: 0.04em;
    }

    .badge-have { background: var(--have-bg); color: var(--have); }
    .badge-partial { background: var(--partial-bg); color: var(--partial); }
    .badge-need { background: var(--need-bg); color: var(--need); }
    .badge-cart { background: var(--cart-bg); color: var(--cart); }

    .item-product {
      font-size: 0.82rem;
      color: var(--text);
      margin: 0.1rem 0 0.2rem;
    }

    .item-note {
      font-size: 0.82rem;
      color: var(--muted);
      margin: 0.15rem 0 0.4rem;
    }

    .links {
      display: flex;
      flex-wrap: wrap;
      gap: 0.35rem;
    }

    .link {
      font-size: 0.78rem;
      text-decoration: none;
      padding: 0.2rem 0.55rem;
      border-radius: 3px;
      border: 1px solid var(--border);
      color: var(--accadis-navy);
      background: #fafafa;
      font-weight: 600;
      min-height: 36px;
      display: inline-flex;
      align-items: center;
    }

    .link:hover {
      border-color: var(--accadis-yellow);
      background: var(--accadis-yellow-light);
    }

    .link-mcpaper { background: var(--accadis-yellow-light); border-color: #e8c56a; color: var(--accadis-navy); }
    .link-mueller { background: #fde8ec; border-color: #e8a0a8; color: var(--accadis-red); }
    .link-cart { background: var(--cart-bg); border-color: #b8c4d8; color: var(--accadis-navy); }
    .link-special { background: #edf5ed; border-color: #a8cfa8; color: var(--accadis-green); }

    .photo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 0.75rem;
    }

    .photo-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform 0.18s ease, box-shadow 0.18s ease;
    }

    .photo-card:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(28, 45, 74, 0.14); }

    .photo-card img {
      width: 100%;
      height: 160px;
      object-fit: cover;
      display: block;
      background: var(--bg);
    }

    .photo-card-body { padding: 0.65rem 0.75rem; }

    .photo-card-title {
      font-weight: 600;
      font-size: 0.88rem;
      margin-bottom: 0.25rem;
    }

    .photo-card-meta {
      font-size: 0.8rem;
      color: var(--muted);
    }

    .section-note {
      margin: -0.35rem 0 0.85rem;
      color: var(--muted);
      font-size: 0.88rem;
    }

    .badge-not-required {
      background: #f1f5f9;
      color: #475569;
      border: 1px solid var(--border);
      margin-bottom: 0.35rem;
    }

    .footer-note {
      font-size: 0.82rem;
      color: var(--muted);
      margin-top: 1.5rem;
      padding: 0.75rem 1rem;
      background: var(--surface);
      border-radius: var(--radius);
      border: 1px solid var(--border);
    }

    .footer-note a { color: var(--accadis-blue); font-weight: 600; }

    .site-footer {
      border-top: 4px solid var(--accadis-yellow);
      background: var(--accadis-navy);
      color: rgba(255,255,255,0.85);
      font-size: 0.82rem;
    }

    .site-footer-inner {
      max-width: 960px;
      margin: 0 auto;
      padding: 1.25rem 1.25rem 2rem;
    }

    .skip-link {
      position: fixed;
      left: 1rem;
      top: 1rem;
      z-index: 1000;
      transform: translateY(-180%);
      padding: 0.65rem 1rem;
      border-radius: 6px;
      background: var(--accadis-yellow);
      color: var(--accadis-navy);
      font-weight: 700;
    }

    .skip-link:focus { transform: translateY(0); }

    .site-footer a {
      color: var(--accadis-yellow);
      text-decoration: none;
      font-weight: 600;
    }

    .site-footer a:hover { text-decoration: underline; }

    .site-footer .link {
      background: transparent;
      border: none;
      padding: 0;
      color: var(--accadis-yellow);
    }

    .site-footer .link:hover {
      background: transparent;
      border: none;
      text-decoration: underline;
    }

    .product-dialog {
      width: min(760px, calc(100% - 2rem));
      max-height: min(760px, calc(100vh - 2rem));
      padding: 0;
      border: 0;
      border-radius: 12px;
      color: var(--text);
      background: var(--surface);
      box-shadow: 0 24px 70px rgba(28, 45, 74, 0.3);
    }

    .product-dialog::backdrop {
      background: rgba(16, 24, 40, 0.68);
      backdrop-filter: blur(3px);
    }

    .product-dialog-inner { padding: 1.25rem; }

    .product-dialog-close {
      float: right;
      width: 44px;
      height: 44px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: var(--surface);
      color: var(--accadis-navy);
      cursor: pointer;
      font-size: 1.45rem;
      line-height: 1;
    }

    .product-dialog-content {
      display: grid;
      grid-template-columns: minmax(180px, 260px) 1fr;
      gap: 1.25rem;
      clear: both;
    }

    .product-dialog-image {
      width: 100%;
      max-height: 320px;
      object-fit: contain;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: #fff;
    }

    .product-dialog h2 { margin-top: 0; }
    .product-dialog-price { color: var(--accadis-green); font-size: 1.1rem; font-weight: 700; }
    .product-dialog .links { margin-top: 1rem; }
    .product-dialog .link { min-height: 44px; display: inline-flex; align-items: center; }

    @media (max-width: 600px) {
      .header { position: static; }
      .item { padding: 0.75rem; }
      h1 { font-size: 1.15rem; }
      .header-top-inner { flex-direction: column; align-items: flex-start; gap: 0.2rem; }
      .header-tagline { font-size: 0.72rem; }
      .header-brand { display: block; }
      .header-logo { display: none; }
      .resource-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .product-dialog-content { grid-template-columns: 1fr; }
      .product-dialog-image { max-height: 240px; }
      .link { min-height: 44px; }
    }

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