:root {
        --paper: 
#F3F4EF;
        --paper-raised: 
#FBFBF8;
        --ink-900: 
#14213D;
        --ink-700: 
#33456B;
        --ink-500: 
#5B6B8C;
        --ink-300: 
#8993AC;
        --line: 
#D9D6C9;
        --line-strong: 
#C3BFAE;
        --brass: 
#A9822E;
        --brass-dark: 
#8A6A22;
        --brass-tint: 
#F1E6CC;
        --danger: 
#A6432F;
        --radius-card: 3px;
        --shadow-card: 0 1px 0 rgba(20,33,61,0.06), 0 1px 3px rgba(20,33,61,0.05);
        --shadow-card-hover: 0 4px 14px rgba(20,33,61,0.12);
        --font-display: 'Newsreader', serif;
        --font-body: 'IBM Plex Sans', system-ui, sans-serif;
        --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
      }
      * { box-sizing: border-box; }
      html { scroll-behavior: smooth; }
      @media (prefers-reduced-motion: reduce) {
        html { scroll-behavior: auto; }
        * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
      }
      body {
        margin: 0;
        background: var(--paper);
        color: var(--ink-900);
        font-family: var(--font-body);
        font-size: 15px;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
      }
      a { color: inherit; }
      ::selection { background: var(--brass-tint); color: var(--ink-900); }
      :focus-visible {
        outline: 2px solid var(--brass-dark);
        outline-offset: 2px;
      }
      .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: var(--paper);
        border-bottom: 1px solid var(--line);
      }
      .header-inner {
        max-width: 1180px;
        margin: 0 auto;
        padding: 18px 24px 16px;
      }
      .brand-row {
        display: flex;
        align-items: baseline;
        justify-content: space-between;
        margin-bottom: 14px;
      }
      .wordmark {
        font-family: var(--font-display);
        font-style: italic;
        font-weight: 500;
        font-size: 26px;
        letter-spacing: 0.2px;
        color: var(--ink-900);
        text-decoration: none;
      }
      .wordmark span {
        font-style: normal;
        color: var(--brass-dark);
      }
      .tagline {
        font-family: var(--font-mono);
        font-size: 11px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--ink-500);
      }
      .search-slot {
        display: flex;
        align-items: center;
        gap: 10px;
        background: var(--paper-raised);
        border: 1.5px solid var(--ink-900);
        border-radius: var(--radius-card);
        padding: 4px 4px 4px 16px;
        box-shadow: var(--shadow-card);
      }
      .search-slot svg { flex: 0 0 auto; color: var(--ink-500); }
      .search-slot input[type="search"] {
        flex: 1;
        border: none;
        background: transparent;
        font-family: var(--font-body);
        font-size: 16px;
        color: var(--ink-900);
        padding: 12px 0;
        outline: none;
      }
      .search-slot input[type="search"]::placeholder { color: var(--ink-300); }
      .search-slot button {
        font-family: var(--font-mono);
        font-size: 12px;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        background: var(--ink-900);
        color: var(--paper);
        border: none;
        border-radius: 2px;
        padding: 11px 18px;
        cursor: pointer;
        transition: background 0.15s ease;
      }
      .search-slot button:hover { background: var(--brass-dark); }
      .meta-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-top: 12px;
        gap: 12px;
        flex-wrap: wrap;
      }
      #resultCount {
        font-family: var(--font-mono);
        font-size: 12px;
        color: var(--ink-500);
      }
      .sort-control {
        display: flex;
        align-items: center;
        gap: 8px;
        font-family: var(--font-mono);
        font-size: 12px;
        color: var(--ink-500);
      }
      .sort-control select {
        font-family: var(--font-mono);
        font-size: 12px;
        background: var(--paper-raised);
        border: 1px solid var(--line-strong);
        border-radius: 2px;
        padding: 6px 8px;
        color: var(--ink-900);
        cursor: pointer;
      }
      .filter-toggle {
        display: none;
        align-items: center;
        gap: 6px;
        font-family: var(--font-mono);
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.06em;
        background: var(--paper-raised);
        border: 1px solid var(--line-strong);
        border-radius: 2px;
        padding: 8px 12px;
        cursor: pointer;
        color: var(--ink-900);
      }
      .layout {
        max-width: 1180px;
        margin: 0 auto;
        padding: 28px 24px 80px;
        display: grid;
        grid-template-columns: 240px 1fr;
        gap: 32px;
        align-items: start;
      }
      .filters {
        position: sticky;
        top: 132px;
        display: flex;
        flex-direction: column;
        gap: 20px;
      }
      .filter-group {
        border-bottom: 1px solid var(--line);
        padding-bottom: 16px;
      }
      .filter-group:last-child { border-bottom: none; }
      .filter-label {
        font-family: var(--font-mono);
        font-size: 11px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--brass-dark);
        margin-bottom: 8px;
        display: block;
      }
      .filter-group select,
      .filter-group input[type="number"] {
        width: 100%;
        font-family: var(--font-body);
        font-size: 14px;
        background: var(--paper-raised);
        border: 1px solid var(--line-strong);
        border-radius: 2px;
        padding: 8px 10px;
        color: var(--ink-900);
      }
      .year-range { display: flex; gap: 8px; align-items: center; }
      .year-range input { width: 100%; }
      .year-range span { color: var(--ink-300); font-size: 12px; }
      .year-slider {
        position: relative;
        height: 28px;
        margin-top: 4px;
      }
      .year-slider-track-bg {
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--line-strong);
        border-radius: 2px;
        transform: translateY(-50%);
      }
      .year-slider-track-fill {
        position: absolute;
        top: 50%;
        height: 3px;
        background: var(--brass-dark);
        border-radius: 2px;
        transform: translateY(-50%);
      }
      .year-slider input[type="range"] {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 28px;
        margin: 0;
        background: none;
        pointer-events: none;
        -webkit-appearance: none;
        appearance: none;
      }
      .year-slider input[type="range"]::-webkit-slider-runnable-track {
        background: transparent;
      }
      .year-slider input[type="range"]::-webkit-slider-thumb {
        pointer-events: auto;
        -webkit-appearance: none;
        appearance: none;
        width: 8px;
        height: 14px;
        clip-path: polygon(
          50% 0%,
          100% 25%,
          100% 100%,
          0% 100%,
          0% 25%
        );
        background: var(--brass-dark);
        border: none;
        cursor: pointer;
        margin-top: 6px;
      }
      .year-slider input[type="range"]::-moz-range-track {
        background: transparent;
      }
      .year-slider input[type="range"]::-moz-range-thumb {
        pointer-events: auto;
        width: 8px;
        height: 14px;
        clip-path: polygon(
          50% 0%,
          100% 25%,
          100% 100%,
          0% 100%,
          0% 25%
        );
        background: var(--brass-dark);
        border: none;
        cursor: pointer;
      }
      .year-labels {
        display: flex;
        justify-content: space-between;
        font-family: var(--font-mono);
        font-size: 10.5px;
        color: var(--ink-300);
        margin-top: 2px;
      }
      .chip-row { display: flex; flex-wrap: wrap; gap: 6px; }
      .chip {
        font-family: var(--font-mono);
        font-size: 11px;
        border: 1px solid var(--line-strong);
        background: var(--paper-raised);
        border-radius: 0px;
        padding: 5px 10px;
        cursor: pointer;
        color: var(--ink-700);
        transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
      }
      .chip[aria-pressed="true"] {
        border-color: var(--brass-dark);
        background: var(--brass-tint);
        color: var(--brass-dark);
        font-weight: 500;
      }
      .clear-filters {
        font-family: var(--font-mono);
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.06em;
        color: var(--ink-500);
        background: none;
        border: none;
        cursor: pointer;
        text-decoration: underline;
        text-underline-offset: 3px;
        padding: 0;
        text-align: left;
      }
      .clear-filters:hover { color: var(--danger); }
      .results { display: flex; flex-direction: column; gap: 14px; min-height: 300px; }
      .card {
        position: relative;
        background: var(--paper-raised);
        border: 1px solid var(--line);
        border-radius: var(--radius-card);
        box-shadow: var(--shadow-card);
        padding: 18px 20px 16px 34px;
        transition: box-shadow 0.18s ease, transform 0.18s ease;
      }
      .card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-1px);
      }
      .card::before {
        content: "";
        position: absolute;
        left: 12px;
        top: 14px;
        bottom: 14px;
        width: 1px;
        background: repeating-linear-gradient(
          to bottom,
          var(--line-strong) 0,
          var(--line-strong) 3px,
          transparent 3px,
          transparent 9px
        );
      }
      .card::after {
        content: "";
        position: absolute;
        left: 9px;
        top: 14px;
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--paper);
        border: 1px solid var(--line-strong);
        box-shadow: 0 22px 0 var(--paper), 0 22px 0 1px var(--line-strong),
                    0 44px 0 var(--paper), 0 44px 0 1px var(--line-strong);
      }
      .card-top {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 6px;
      }
      .card-title {
        font-family: var(--font-display);
        font-style: italic;
        font-weight: 500;
        font-size: 18px;
        line-height: 1.35;
        color: var(--ink-900);
        text-decoration: none;
      }
      .card-title:hover { color: var(--brass-dark); }
      .badge-row {
        flex: 0 0 auto;
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 5px;
      }
      .badge-icons-row {
        display: flex;
        align-items: center;
        gap: 4px;
      }
      .badge-row img {
        display: block;
        border-radius: 3px;
      }
      .badge-btn {
        border: none;
        background: none;
        padding: 0;
        margin: 0;
        display: inline-flex;
        cursor: pointer;
        line-height: 0;
      }
      .badge-btn img { display: block; }
      .badge-percentile {
        font-family: var(--font-mono);
        font-size: 7.5px;
        letter-spacing: 0.05em;
        text-transform: lowercase;
        color: var(--ink-500);
        background: var(--paper);
        border: 1px solid var(--line-strong);
        border-radius: 2px;
        padding: 3px 7px;
        white-space: nowrap;
      }
      .sidebar-disclaimer {
        padding-top: 14px;
        border-top: 1px solid var(--line);
      }
      .sidebar-disclaimer img {
        display: block;
        max-width: 100%;
        height: auto;
      }
      .active-filters {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 10px;
      }
      .active-filters:empty { display: none; margin-top: 0; }
      .filter-chip {
        font-family: var(--font-mono);
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        background: var(--brass-tint);
        color: var(--brass-dark);
        border: 1px solid var(--brass);
        border-radius: 12px;
        padding: 5px 8px 5px 10px;
        display: inline-flex;
        align-items: center;
        gap: 6px;
      }
      .filter-chip button {
        background: none;
        border: none;
        cursor: pointer;
        color: var(--brass-dark);
        font-weight: bold;
        font-family: var(--font-mono);
        font-size: 12px;
        line-height: 1;
        padding: 2px;
      }
      .card-authors {
        font-size: 13.5px;
        color: var(--ink-700);
        margin-bottom: 4px;
      }
      .card-source {
        font-size: 13px;
        color: var(--ink-500);
        font-style: italic;
        margin-bottom: 10px;
      }
      .year-click { cursor: pointer; }
      .card-abstract {
        display: -webkit-box;
        display: box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        overflow: hidden;
      }
      .card-footer {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 10px;
        padding-top: 10px;
        border-top: 1px dashed var(--line);
        font-family: var(--font-mono);
        font-size: 11.5px;
        color: var(--ink-500);
      }
      .tag {
        background: var(--paper);
        border: 1px solid var(--line-strong);
        border-radius: 2px;
        padding: 3px 7px;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: var(--ink-700);
      }
      .campus-stamp {
        color: var(--brass-dark);
        border-color: var(--brass);
        font-weight: 500;
        text-decoration: none;
        cursor: pointer;
        display: inline-block;
      }
      .campus-stamp:hover {
        background: var(--brass-tint);
      }
      button.tag {
        font-family: var(--font-mono);
        font-size: 11.5px;
        appearance: none;
        -webkit-appearance: none;
        line-height: 1.4;
        transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
      }
      button.tag:hover {
        border-color: var(--brass-dark);
        color: var(--brass-dark);
      }
      .dot { color: var(--line-strong); }
      .state-box {
        text-align: center;
        padding: 60px 20px;
        color: var(--ink-500);
      }
      .state-box .state-title {
        font-family: var(--font-display);
        font-style: italic;
        font-size: 20px;
        color: var(--ink-900);
        margin-bottom: 6px;
      }
      .state-box .state-desc { font-size: 13.5px; }
      .skeleton-card {
        height: 128px;
        border-radius: var(--radius-card);
        background: linear-gradient(100deg, var(--paper-raised) 30%, 
#EDEBE0 50%, var(--paper-raised) 70%);
        background-size: 200% 100%;
        animation: shimmer 1.4s ease-in-out infinite;
        border: 1px solid var(--line);
      }
      @keyframes shimmer {
        0% { background-position: 200% 0; }
        100% { background-position: -200% 0; }
      }

      .pagination {
        grid-column: 2;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        margin-top: 24px;
        font-family: var(--font-mono);
        font-size: 13px;
      }
      .pagination button {
        min-width: 32px;
        height: 32px;
        border: 1px solid var(--line-strong);
        background: var(--paper-raised);
        border-radius: 2px;
        cursor: pointer;
        color: var(--ink-700);
      }
      .pagination button:hover:not(:disabled) { border-color: var(--brass-dark); color: var(--brass-dark); }
      .pagination button[aria-current="true"] {
        background: var(--ink-900);
        color: var(--paper);
        border-color: var(--ink-900);
      }
      .pagination button:disabled { opacity: 0.35; cursor: not-allowed; }
      .drawer-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(20,33,61,0.35);
        z-index: 60;
      }
      .drawer-backdrop.open { display: block; }
      @media (max-width: 860px) {
        .layout { grid-template-columns: 1fr; }
        .filter-toggle { display: inline-flex; }
        .filters {
          position: fixed;
          top: 0;
          right: 0;
          bottom: 0;
          width: min(320px, 84vw);
          background: var(--paper);
          z-index: 61;
          padding: 20px;
          overflow-y: auto;
          transform: translateX(100%);
          transition: transform 0.22s ease;
          box-shadow: -8px 0 24px rgba(20,33,61,0.18);
        }
        .filters.open { transform: translateX(0); }
        .filters-close {
          font-family: var(--font-mono);
          font-size: 12px;
          text-transform: uppercase;
          background: none;
          border: none;
          cursor: pointer;
          color: var(--ink-500);
          margin-bottom: 16px;
        }
      }
      @media (max-width: 520px) {
        .header-inner { padding: 14px 16px; }
        .wordmark { font-size: 22px; }
        .card { padding: 16px 14px 14px 30px; }
        .card-title { font-size: 16.5px; }
      }