/* ── RESET & TOKENS ── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
    --ink:#1c1710;--ink-mid:#5a5040;--ink-light:#9a8c78;
    --parchment:#f7f3ec;--cream:#fdfaf5;
    --gold:#b5862a;--gold-light:#d4a84b;--gold-pale:#f0e4c8;
    --rust:#8b3a2a;--teal:#1e5c5a;--border:#e2d9c8;
    --shadow-sm:0 2px 8px rgba(28,23,16,.06);
    --shadow-lg:0 16px 40px rgba(28,23,16,.14);
    --radius:10px;
}
body{font-family:'Source Sans 3',sans-serif;background:var(--parchment);color:var(--ink);line-height:1.6}

/* ── HEADER ── */
header{background:var(--ink);position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(0,0,0,.25)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center;height:62px}
.logo{font-family:'Playfair Display',serif;font-size:1.4rem;color:var(--gold-light);text-decoration:none;letter-spacing:.02em}
nav{display:flex;align-items:center;gap:1.8rem}
nav a{color:#c8bfaf;text-decoration:none;font-size:.9rem;font-weight:500;letter-spacing:.03em;transition:color .2s}
nav a:hover,nav a.active{color:var(--gold-light)}
.lang-toggle{font-size:.85rem;color:var(--ink-light)}
.lang-toggle a{color:#c8bfaf;text-decoration:none}
.lang-toggle a:hover{color:var(--gold-light)}
.mobile-menu-btn{display:none;background:none;border:none;font-size:1.4rem;cursor:pointer;color:var(--gold-light)}

/* ── HERO ── */
.page-hero{background:var(--ink);padding:3.5rem 2rem 3rem;text-align:center;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(45deg,transparent,transparent 40px,rgba(181,134,42,.04) 40px,rgba(181,134,42,.04) 41px)}
.page-hero .inner,
.page-hero .container{position:relative;max-width:780px;margin:0 auto}
h1{font-family:'Playfair Display',serif;font-size:2.8rem;font-weight:700;color:#f5f0e8;line-height:1.15;margin-bottom:.75rem}
.hero-description{font-size:1.05rem;color:#a89e8c;max-width:600px;margin:0 auto}

/* ── FILTER BAR (tools page) ── */
.filter-bar{
    background:var(--cream);border-bottom:1px solid var(--border);
    position:sticky;top:62px;z-index:900;box-shadow:var(--shadow-sm)
}
.filter-inner{max-width:1280px;margin:0 auto;padding:0 2rem}

/* always-visible row */
.filter-summary-row{
    display:flex;align-items:center;gap:.75rem;padding:.85rem 0;flex-wrap:wrap
}

/* toggle button */
.filter-toggle-btn{
    display:inline-flex;align-items:center;gap:.45rem;
    padding:.35rem .9rem;border-radius:20px;
    border:1.5px solid var(--border);background:transparent;
    color:var(--ink-mid);font-size:.82rem;font-weight:500;
    cursor:pointer;font-family:inherit;transition:all .18s;white-space:nowrap
}
.filter-toggle-btn:hover{border-color:var(--gold);color:var(--gold)}
.filter-toggle-btn.open{
    background:var(--ink);border-color:var(--ink);color:var(--gold-light)
}
.filter-toggle-btn .chevron-icon{
    transition:transform .22s ease;flex-shrink:0
}
.filter-toggle-btn.open .chevron-icon{transform:rotate(180deg)}
.filter-toggle-btn .funnel-icon{flex-shrink:0}

/* active tag badge */
.active-tag-badge{
    display:inline-flex;align-items:center;gap:.35rem;
    padding:.25rem .65rem;border-radius:20px;
    background:var(--gold-pale);border:1.5px solid rgba(181,134,42,.35);
    font-size:.8rem;font-weight:500;color:var(--ink-mid)
}
.badge-prefix{font-weight:600;color:var(--ink-light);font-size:.75rem;letter-spacing:.05em;text-transform:uppercase}
.badge-clear{
    background:none;border:none;cursor:pointer;color:var(--ink-light);
    font-size:.85rem;line-height:1;padding:0 0 0 .1rem;
    transition:color .15s;font-family:inherit
}
.badge-clear:hover{color:var(--rust)}

/* foldout panel */
.filter-panel{
    overflow:hidden;
    max-height:0;
    transition:max-height .28s ease, padding .28s ease;
    padding:0
}
.filter-panel.open{
    max-height:300px;
    padding-bottom:1rem
}

/* ── FILTER BAR (datasets page) ── */
.filter-section{background:var(--cream);border-bottom:1px solid var(--border);padding:1.25rem 0;position:sticky;top:62px;z-index:900;box-shadow:var(--shadow-sm)}
.filter-section .filter-inner{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center}
.filter-label{font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-light);margin-right:.25rem}
.filter-divider{width:1px;height:24px;background:var(--border);margin:0 .25rem}

/* shared filter group & buttons */
.filter-group{display:flex;flex-wrap:wrap;gap:.4rem;padding-top:.6rem}
.filter-section .filter-group{padding-top:0;gap:.5rem;align-items:center}
.filter-btn{
    padding:.3rem .8rem;border-radius:20px;border:1.5px solid var(--border);
    background:transparent;color:var(--ink-mid);font-size:.8rem;font-weight:500;
    cursor:pointer;transition:all .18s;font-family:inherit;white-space:nowrap
}
.filter-btn:hover{border-color:var(--gold);color:var(--gold)}
.filter-btn.active{background:var(--gold);border-color:var(--gold);color:#fff}

/* search box */
.search-wrap{margin-left:auto;position:relative;flex-shrink:0}
.search-wrap svg{position:absolute;left:.7rem;top:50%;transform:translateY(-50%);color:var(--ink-light);pointer-events:none}
#search-input{
    padding:.38rem .9rem .38rem 2.1rem;border:1.5px solid var(--border);
    border-radius:20px;background:var(--parchment);font-family:inherit;
    font-size:.85rem;color:var(--ink);width:210px;
    transition:border-color .2s,box-shadow .2s;outline:none
}
#search-input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(181,134,42,.12)}
#search-input::placeholder{color:var(--ink-light)}

/* ── RESULTS BAR ── */
.results-bar{max-width:1280px;margin:0 auto;padding:1.1rem 2rem 0;font-size:.84rem;color:var(--ink-light)}
.results-bar strong{color:var(--ink-mid)}

/* ── SECTION HEADINGS (datasets) ── */
.section-heading{font-family:'Playfair Display',serif;font-size:1.35rem;font-weight:600;color:var(--ink);margin:2rem 0 1.25rem;padding-bottom:.5rem;border-bottom:2px solid var(--gold-pale);display:flex;align-items:center;gap:.6rem}
.section-heading .count-badge{font-family:'Source Sans 3',sans-serif;font-size:.75rem;font-weight:600;background:var(--gold-pale);color:var(--gold);border-radius:12px;padding:.15rem .55rem}

/* ── GRIDS ── */
.tools-section{max-width:1280px;margin:0 auto;padding:1.5rem 2rem 6rem}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.5rem}
.datasets-section{max-width:1280px;margin:0 auto;padding:1.5rem 2rem 6rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.5rem}

/* ── TOOL CARD ── */
.tool-card{
    background:var(--cream);border:1px solid var(--border);border-radius:var(--radius);
    display:flex;flex-direction:column;
    transition:box-shadow .25s,border-color .25s,transform .25s;overflow:hidden
}
.tool-card:hover,
.dataset-card:hover{
    box-shadow:none;
    transform:none;
}
.tool-card.hidden{display:none}
.card-body{padding:1.75rem 1.75rem 1.25rem;flex:1;display:flex;flex-direction:column}
.tool-icon{
    width:48px;height:48px;border-radius:10px;background:var(--gold-pale);
    display:flex;align-items:center;justify-content:center;
    font-size:1.4rem;margin-bottom:1rem;flex-shrink:0
}
.tool-author{
    font-size:.75rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
    color:var(--ink-light);margin-bottom:.5rem
}
.tool-title{
    font-family:'Playfair Display',serif;font-size:1.1rem;font-weight:600;
    line-height:1.35;color:var(--ink);margin-bottom:.75rem
}
.tool-description{font-size:.9rem;color:var(--ink-mid);line-height:1.65;flex:1;margin-bottom:1rem}
.tool-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:auto;padding-top:.9rem;border-top:1px solid var(--border)}
.tool-tag{
    font-size:.72rem;font-weight:600;letter-spacing:.04em;
    padding:.15rem .55rem;border-radius:4px;
    background:var(--gold-pale);color:var(--gold);border:1px solid rgba(181,134,42,.2)
}

/* ── DATASET CARD ── */
.dataset-card{background:var(--cream);border:1px solid var(--border);border-radius:var(--radius);display:flex;flex-direction:column;transition:box-shadow .25s,border-color .25s,transform .25s;overflow:hidden}
.dataset-card:hover{
    box-shadow:none;
    transform:none;
}
.dataset-card.hidden{display:none}
.card-top{padding:1.5rem 1.75rem 1.25rem;border-bottom:1px solid var(--border);flex:1}
.card-header{display:flex;gap:.9rem;align-items:flex-start;margin-bottom:.85rem}
.dataset-icon{width:42px;height:42px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0;background:var(--gold-pale)}
.card-title-block{flex:1;min-width:0}
.dataset-title{font-family:'Playfair Display',serif;font-size:1.05rem;font-weight:600;line-height:1.35;color:var(--ink);margin-bottom:.3rem}
.dataset-tags{display:flex;flex-wrap:wrap;gap:.35rem}
.tag{font-size:.7rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;padding:.15rem .5rem;border-radius:4px;background:var(--gold-pale);color:var(--gold);border:1px solid rgba(181,134,42,.25)}
.tag.tag-people{background:#e8f0f8;color:#2a5c8b;border-color:rgba(42,92,139,.2)}
.tag.tag-places{background:#eaf4ed;color:#2a6b3a;border-color:rgba(42,107,58,.2)}
.tag.tag-archive{background:#f4ece8;color:var(--rust);border-color:rgba(139,58,42,.2)}
.tag.tag-polities{background:#fef3e2;color:#8b6200;border-color:rgba(139,98,0,.2)}
.tag.tag-thesaurus{background:#ede8f4;color:#5c3a8b;border-color:rgba(92,58,139,.2)}
.tag.tag-resource{background:#f4f2e8;color:#6b5e2a;border-color:rgba(107,94,42,.2)}
.dataset-description{font-size:.9rem;color:var(--ink-mid);line-height:1.65}
.card-meta{padding:1rem 1.75rem;background:var(--parchment);border-bottom:1px solid var(--border)}
.meta-row{display:grid;grid-template-columns:120px 1fr;gap:.35rem .6rem;align-items:baseline;padding:.3rem 0;border-bottom:1px solid rgba(226,217,200,.5);font-size:.83rem}
.meta-row:last-child{border-bottom:none}
.meta-key{font-weight:600;color:var(--ink-light);font-size:.75rem;letter-spacing:.06em;text-transform:uppercase}
.meta-val{color:var(--ink-mid)}
.meta-val a{color:var(--teal);text-decoration:none}
.meta-val a:hover{text-decoration:underline}
.doi-text{font-size:.75rem;color:var(--ink-light);font-family:monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:180px}
.dataset-link{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1.2rem;background:var(--ink);color:var(--gold-light);text-decoration:none;border-radius:6px;font-size:.82rem;font-weight:600;letter-spacing:.04em;transition:background .2s,color .2s;white-space:nowrap;flex-shrink:0}
.dataset-link:hover{background:var(--gold);color:#fff}

/* ── SHARED CARD FOOTER ── */
.card-footer{padding:1rem 1.75rem;border-top:1px solid var(--border)}
.dataset-card .card-footer{display:flex;align-items:center;justify-content:space-between;gap:.75rem}
.visit-btn{
    display:inline-flex;align-items:center;gap:.4rem;
    padding:.55rem 1.2rem;background:var(--ink);color:var(--gold-light);
    text-decoration:none;border-radius:6px;font-size:.82rem;font-weight:600;
    letter-spacing:.04em;transition:background .2s,color .2s;white-space:nowrap
}
.visit-btn:hover{background:var(--gold);color:#fff}

/* ── NO RESULTS ── */
.no-results{display:none;text-align:center;padding:4rem 1rem;color:var(--ink-light)}
.no-results.visible{display:block}
.no-results svg{margin-bottom:1rem;opacity:.35}
.no-results p{font-size:1rem;margin-bottom:.35rem}
.no-results small{font-size:.85rem}

/* ── FOOTER ── */
footer{border-top:1px solid var(--border);padding:2.5rem 2rem;text-align:center;color:var(--ink-light);font-size:.85rem;background:var(--cream)}
footer a{color:var(--gold);text-decoration:none}
footer a:hover{text-decoration:underline}

/* ── RESPONSIVE ── */
@media(max-width:768px){
    h1{font-size:2rem}
    .filter-bar{top:62px}
    .search-wrap{margin-left:0;width:100%}
    #search-input{width:100%}
    .tools-grid,.grid{grid-template-columns:1fr}
    nav{display:none;position:absolute;top:62px;left:0;right:0;background:var(--ink);flex-direction:column;padding:1rem 2rem;gap:1rem}
    nav.open{display:flex}
    .mobile-menu-btn{display:block}
    .filter-summary-row{flex-wrap:wrap;gap:.5rem}
    .meta-row{grid-template-columns:100px 1fr}
}