*{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#f7f7f5;
  --surface:#fff;
  --border:#e8e5e0;
  --border-light:#f0ede8;
  --text:#2d2d2d;
  --text-muted:#6b6b6b;
  --text-dim:#767676;
  --green:#6aaa64;
  --green-light:#6aaa6418;
  --green-border:#6aaa6440;
  --error:#d44;
  --input-bg:#fff;
  --word-bg:#fff;
  --word-border:#e0ddd8;
  --answer-bg:#f0f7f1;
  --answer-border:#6aaa6450;
  --sans:'Inter',-apple-system,system-ui,'Segoe UI',sans-serif;
  font-size:16px;
}

body{
  font-family:var(--sans);background:var(--bg);color:var(--text);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}

a{color:var(--text);text-decoration:none}
a:hover{color:var(--green)}
.wrap{max-width:920px;margin:0 auto;padding:0 24px}


/* ── Nav ── */

.site-nav{background:var(--surface);border-bottom:1px solid var(--border);box-shadow:0 1px 3px rgba(0,0,0,.04)}
.nav-inner{display:flex;align-items:center;height:3.2rem}
.nav-brand{font-size:.95rem;font-weight:700;color:var(--green);margin-right:auto;white-space:nowrap}
.nav-brand:hover{opacity:.8}
.nav-links{display:flex;align-items:center;height:100%}
.nav-link{
  font-size:.85rem;color:var(--text-muted);padding:0 14px;height:100%;
  display:flex;align-items:center;border:none;background:none;
  cursor:pointer;font-family:inherit;transition:color .15s;font-weight:500;
}
.nav-link:hover{color:var(--green);text-decoration:none}
.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.4rem;cursor:pointer;padding:8px}
.nav-dropdown{position:relative;height:100%;display:flex;align-items:center}
.dropdown-panel{
  visibility:hidden;opacity:0;position:absolute;top:100%;left:0;
  background:var(--surface);border:1px solid var(--border);border-top:none;
  padding:10px;min-width:200px;max-width:340px;z-index:100;
  flex-wrap:wrap;gap:3px;pointer-events:none;transition:opacity .15s,visibility .15s;
  border-radius:0 0 10px 10px;box-shadow:0 4px 12px rgba(0,0,0,.08);
}
.nav-dropdown:hover .dropdown-panel{visibility:visible;opacity:1;pointer-events:auto}
.dropdown-panel a{
  display:inline-flex;align-items:center;justify-content:center;
  padding:7px 11px;font-size:.8rem;color:var(--text-muted);
  border-radius:6px;white-space:nowrap;transition:all .12s;font-weight:500;
}
.dropdown-panel a:hover{background:var(--green);color:#fff;text-decoration:none}


/* ── Header ── */

header{padding:1.5rem 0 1rem}
header h1{font-size:1.6rem;font-weight:800;letter-spacing:-.03em}


/* ── Filters ── */

.filters{
  padding:1.25rem 1.25rem;position:sticky;top:0;background:var(--surface);z-index:10;
  border-radius:12px;border:1px solid var(--border);
  box-shadow:0 2px 8px rgba(0,0,0,.04);margin-bottom:1rem;
}
.filter-top{display:flex;justify-content:space-between;align-items:flex-start;line-height:1}
.filter-counter{
  font-size:1rem;font-weight:700;color:var(--text);
  padding:0 0 .75rem;border-bottom:1px solid var(--border-light);
  margin-bottom:.75rem;line-height:1.5rem;
}
.filter-counter .count{display:inline-block;transition:color .15s}
.filter-counter .count.pulse{color:var(--green)}
.filter-collapse{
  display:flex;background:none;border:none;color:var(--text-dim);
  font-size:1rem;cursor:pointer;padding:0 6px;
  transition:transform .2s;height:1.5rem;align-items:center;
}
.filter-collapse:hover{color:var(--text)}
.filter-body{max-height:500px;overflow:hidden;transition:max-height .35s cubic-bezier(.4,0,.2,1),opacity .25s ease;opacity:1}
.filters.collapsed .filter-body{max-height:0;opacity:0}
.filters.collapsed .filter-collapse{transform:rotate(180deg)}
.filters.collapsed{padding:.75rem 1.25rem}
.filters.collapsed .filter-counter{border-bottom:none;padding:0;margin-bottom:0}

.filter-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;align-items:flex-start}
.filter-group{display:flex;flex-direction:column;gap:5px;position:relative}
.filter-group>label{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted)}
.filter-group input[type="text"]{
  width:100%;padding:10px 12px;border:1.5px solid var(--border);border-radius:8px;
  font-size:1rem;font-family:var(--sans);background:var(--input-bg);
  color:var(--text);letter-spacing:.04em;text-transform:uppercase;font-weight:600;
  transition:border-color .15s;
}
.filter-group input[type="text"]:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px var(--green-light)}
.filter-group input[type="text"]::placeholder{color:var(--text-dim);text-transform:none;font-weight:400}
.filter-group input[type="text"].error{border-color:var(--error)}
.input-error{display:none;font-size:.75rem;color:var(--error);margin-top:2px}
.input-error.visible{display:block}

.filter-actions{display:flex;align-items:center;gap:1rem;margin-top:1.25rem;flex-wrap:wrap}
.toggles{display:flex;gap:1.5rem;flex-wrap:wrap}
.toggle{display:inline-flex;align-items:center;gap:6px;font-size:.85rem;color:var(--text-muted);cursor:pointer;font-weight:500}
.toggle input[type="checkbox"]{margin:0;accent-color:var(--green);flex-shrink:0;width:16px;height:16px}
.toggle:hover{color:var(--text)}
.clear-btn{
  background:var(--bg);border:1.5px solid var(--border);border-radius:8px;
  color:var(--text-muted);font-size:.8rem;padding:7px 16px;cursor:pointer;
  font-family:inherit;font-weight:600;transition:all .15s;margin-left:auto;
}
.clear-btn:hover{background:var(--green);color:#fff;border-color:var(--green)}


/* ── Stats & Intro ── */

.stats{padding:.5rem 0;font-size:.85rem;color:var(--text-muted)}
.stats strong{color:var(--text);font-weight:600}
.intro{padding:.25rem 0 .75rem;font-size:.9rem;color:var(--text-muted);line-height:1.7}
.no-results{display:none;padding:2.5rem 0;text-align:center;color:var(--text-muted);font-size:1rem}
.no-results.visible{display:block}
.no-results p{margin-bottom:.5rem}
.no-results .suggestion{font-size:.85rem;color:var(--text-dim)}


/* ── Words ── */

.words{padding:.5rem 0 1.5rem;display:grid;grid-template-columns:repeat(auto-fill,minmax(6rem,1fr));gap:7px}
.words .w{
  display:inline-flex;align-items:center;
  padding:8px 12px;background:var(--word-bg);
  border:1.5px solid var(--word-border);border-radius:8px;
  font-size:.9rem;font-family:var(--sans);letter-spacing:.08em;
  text-transform:uppercase;color:var(--text-muted);cursor:pointer;
  transition:all .12s;font-weight:600;
}
.words .w:hover{border-color:var(--green);color:var(--text);box-shadow:0 2px 6px rgba(0,0,0,.06)}
.words .w .hl{color:var(--green);font-weight:800}
.words .w.answer{background:var(--answer-bg);border-color:var(--answer-border);color:var(--text)}
.words .w[hidden]{display:none}
.words .w::after{content:'\25BC';margin-left:auto;padding-left:8px;font-size:.7rem;opacity:.35;transition:opacity .12s}
.words .w:hover::after{opacity:.6}
.words .w.expanded{border-color:var(--green);background:var(--green-light)}
.words .w.expanded::after{content:'\25B2';opacity:.6}
.word-divider{grid-column:1/-1;width:100%;border:none;margin:14px 0;height:1px;background:var(--border-light)}
.word-divider[hidden]{display:none}


/* ── Detail panel ── */

.word-detail{
  grid-column:1/-1;width:100%;background:var(--surface);border:1.5px solid var(--border);
  border-radius:10px;padding:1rem 1.25rem;margin:8px 0;font-size:.9rem;line-height:1.6;
  box-shadow:0 2px 8px rgba(0,0,0,.04);
}
.wd-header{display:flex;justify-content:space-between;align-items:flex-start}
.wd-word{font-size:1.05rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--text);margin-bottom:4px}
.wd-copy{
  background:none;border:1px solid var(--border);border-radius:6px;
  color:var(--text-dim);font-size:.75rem;padding:4px 10px;cursor:pointer;
  font-family:inherit;font-weight:500;transition:all .15s;display:flex;align-items:center;gap:4px;
}
.wd-copy:hover{border-color:var(--green);color:var(--green)}
.wd-copy.copied{border-color:var(--green);color:var(--green)}
.wd-type{font-style:italic;color:var(--text-dim);font-size:.8rem;margin-bottom:4px}
.wd-def{color:var(--text-muted);line-height:1.7}
.wd-stats{margin-top:10px;padding-top:10px;border-top:1px solid var(--border-light);display:flex;gap:1rem;flex-wrap:wrap;font-size:.8rem;color:var(--text-dim)}
.wd-stat{display:flex;gap:4px}
.wd-stat strong{color:var(--text-muted);font-weight:600}


/* ── Skeleton ── */

.skeleton{border-radius:6px;background:var(--border-light);animation:sk-pulse 1.2s ease-in-out infinite}
.sk-word{width:80px;height:18px;margin-bottom:8px}
.sk-type{width:50px;height:14px;margin-bottom:6px}
.sk-def{height:14px;margin-bottom:5px}
.sk-def:nth-child(3){width:100%}
.sk-def:nth-child(4){width:85%}
.sk-def:nth-child(5){width:40%}
.sk-stats{width:200px;height:12px;margin-top:14px}
@keyframes sk-pulse{0%,100%{opacity:.4}50%{opacity:.7}}


/* ── Child links ── */

.child-links{grid-column:1/-1;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-light);margin-bottom:.5rem}
.child-links h4{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:10px}
.child-links .links{display:flex;flex-wrap:wrap;gap:6px}
.child-links .links a{
  font-size:.8rem;padding:6px 12px;border:1.5px solid var(--border);border-radius:8px;
  color:var(--text-muted);transition:all .12s;font-weight:500;
}
.child-links .links a:hover{background:var(--green);border-color:var(--green);color:#fff}


/* ── Changelog ── */

.changelog{margin-top:1.5rem;padding-top:1.25rem;border-top:1px solid var(--border-light)}
.changelog h3{font-size:1.1rem;font-weight:700;color:var(--text);margin-bottom:1rem}
.changelog-entry{margin-bottom:1.25rem}
.changelog-date{font-size:.8rem;font-style:italic;color:var(--text-dim);margin-bottom:2px}
.changelog-text{font-size:.9rem;color:var(--text-muted);line-height:1.6}


/* ── Static content (about, privacy) ── */

.static-content{padding:1.25rem 0;font-size:.9rem;line-height:1.7;color:var(--text-muted)}
.static-content p{margin-bottom:.875rem}
.static-content h2{font-size:1.05rem;font-weight:600;color:var(--text);margin:1.5rem 0 .5rem}
.static-content a{color:var(--green)}
.static-content a:hover{text-decoration:underline}
.static-content strong{color:var(--text);font-weight:600}
.static-content .updated{font-size:.8rem;color:var(--text-dim);font-style:italic}


/* ── Scroll to top ── */

.scroll-top{
  position:fixed;bottom:1.5rem;left:1.5rem;
  width:2.8rem;height:2.8rem;border-radius:50%;
  background:var(--green);color:#fff;border:none;
  font-size:1.1rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 2px 10px rgba(0,0,0,.15);
  opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s;z-index:50;
}
.scroll-top.visible{opacity:1;visibility:visible}
.scroll-top:hover{background:#5a9a59;box-shadow:0 4px 14px rgba(0,0,0,.2)}


/* ── Footer ── */

footer{padding:2rem 0;border-top:1px solid var(--border);margin-top:1.5rem;background:var(--surface)}
footer .link-section{margin-bottom:1.25rem}
footer .link-section h4{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:10px}
footer .link-section .links{display:flex;flex-wrap:wrap;gap:5px}
footer .link-section .links a{
  font-size:.8rem;padding:5px 10px;border:1px solid var(--border);border-radius:6px;
  color:var(--text-muted);transition:all .12s;font-weight:500;
}
footer .link-section .links a:hover{background:var(--green);border-color:var(--green);color:#fff}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:1.5rem;padding-top:1.25rem;border-top:1px solid var(--border-light);font-size:.8rem;color:var(--text-dim)}
.footer-nav a{color:var(--text-muted);font-weight:500}
.footer-nav a:hover{color:var(--green)}


/* ── Mobile ── */

@media(max-width:600px){
  .nav-toggle{display:block}
  .nav-links{
    display:none;flex-direction:column;position:absolute;top:3.2rem;left:0;right:0;
    background:var(--surface);border-bottom:1px solid var(--border);padding:8px 0;z-index:100;
    box-shadow:0 4px 12px rgba(0,0,0,.08);
  }
  .nav-links.open{display:flex}
  .nav-link{height:auto;padding:12px 24px;width:100%;justify-content:flex-start}
  .nav-dropdown{height:auto;flex-direction:column;width:100%}
  .nav-trigger{width:100%;justify-content:flex-start}
  .dropdown-panel{
    position:static;border:none;max-width:100%;border-radius:0;box-shadow:none;
    visibility:hidden;opacity:0;height:0;overflow:hidden;padding:0 24px 0 36px;
    pointer-events:none;transition:none;
  }
  .nav-dropdown:hover .dropdown-panel{visibility:hidden;opacity:0;pointer-events:none}
  .nav-dropdown.open .dropdown-panel{visibility:visible;opacity:1;height:auto;padding:4px 24px 8px 36px;pointer-events:auto;overflow:visible}
  .filter-group input[type="text"]{padding:12px 14px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
}