:root{
  --brand:#146356;
  --brand-dark:#0d4a40;
  --brand-light:#e6f2ef;
  --ink:#16211f;
  --ink-soft:#4b5a57;
  --border:#e2e8e6;
  --bg:#fbfbfa;
  --card:#ffffff;
  --danger:#b3261e;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 2px rgba(20,99,86,.06), 0 4px 16px rgba(20,99,86,.06);
  --max:1120px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em}
p{margin:0 0 1em}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(251,251,250,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.site-header .row{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--brand-dark)}
.brand .dot{width:10px;height:10px;border-radius:3px;background:var(--brand);display:inline-block}
.nav-links{display:flex;gap:22px;list-style:none;margin:0;padding:0}
.nav-links a{text-decoration:none;font-weight:600;font-size:.94rem;color:var(--ink-soft)}
.nav-links a:hover{color:var(--brand-dark)}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:var(--radius-sm);width:40px;height:40px;font-size:1.2rem}
@media (max-width:820px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .nav-links.open{display:flex;position:absolute;top:64px;left:0;right:0;background:var(--card);flex-direction:column;padding:16px 20px;border-bottom:1px solid var(--border);gap:14px}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border-radius:var(--radius-sm);font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;text-decoration:none;min-height:44px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-secondary{background:#fff;border-color:var(--border);color:var(--ink)}
.btn-secondary:hover{border-color:var(--brand)}
.btn-ghost{background:transparent;color:var(--brand-dark);padding:8px 10px}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed}

/* Hero / search */
.hero{padding:52px 0 36px;text-align:center}
.hero h1{font-size:clamp(1.7rem,4vw,2.6rem)}
.hero p.sub{color:var(--ink-soft);max-width:560px;margin:0 auto 24px;font-size:1.05rem}
.search-box{max-width:560px;margin:0 auto;position:relative}
.search-box input{width:100%;padding:15px 46px 15px 18px;font-size:1rem;border:1.5px solid var(--border);border-radius:999px;background:#fff;min-height:52px}
.search-box input:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
.search-hint{font-size:.82rem;color:var(--ink-soft);margin-top:8px}
.search-results{position:absolute;top:calc(100% + 8px);left:0;right:0;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);text-align:left;max-height:340px;overflow:auto;z-index:30}
.search-results a{display:block;padding:12px 16px;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--border)}
.search-results a:last-child{border-bottom:none}
.search-results a:hover,.search-results a:focus{background:var(--brand-light)}
.search-results .cat{font-size:.75rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em}
.search-empty{padding:14px 16px;color:var(--ink-soft);font-size:.9rem}

/* Sections */
section{padding:36px 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:18px;gap:12px;flex-wrap:wrap}
.section-head h2{font-size:1.4rem}
.section-head a{font-weight:700;font-size:.9rem;color:var(--brand-dark);text-decoration:none}

/* Cards / grid */
.grid{display:grid;gap:16px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}}

.tool-card{display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;text-decoration:none;color:var(--ink);transition:transform .12s,box-shadow .12s,border-color .12s}
.tool-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--brand)}
.tool-card .cat-tag{font-size:.72rem;font-weight:700;color:var(--brand-dark);background:var(--brand-light);padding:3px 8px;border-radius:999px;display:inline-block;margin-bottom:10px}
.tool-card h3{font-size:1.02rem;margin-bottom:6px}
.tool-card p{font-size:.87rem;color:var(--ink-soft);margin:0}

.cat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--ink)}
.cat-card:hover{border-color:var(--brand)}
.cat-card h3{margin-bottom:4px}
.cat-card p{font-size:.87rem;color:var(--ink-soft);margin:0}

/* Tool page layout */
.breadcrumb{font-size:.83rem;color:var(--ink-soft);margin-bottom:14px}
.breadcrumb a{text-decoration:none;color:var(--ink-soft)}
.breadcrumb a:hover{color:var(--brand-dark)}
.tool-header h1{font-size:1.7rem;margin-bottom:6px}
.tool-header .desc{color:var(--ink-soft);max-width:680px}
.tool-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin:20px 0;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;font-size:.87rem;margin-bottom:6px}
.field label>input,.field label>select{display:block;margin-top:6px;font-weight:400}
.field .hint{font-size:.78rem;color:var(--ink-soft);margin-top:4px}
input[type=text],input[type=number],input[type=date],select,textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;background:#fff;font-family:inherit;min-height:46px
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
textarea{min-height:110px;resize:vertical}
.row-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.subject-row{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:8px;align-items:end;margin-bottom:10px}
@media (max-width:640px){.subject-row{grid-template-columns:1fr 1fr;grid-template-areas:"a a" "b c" "d d"}}
.icon-btn{background:none;border:1px solid var(--border);border-radius:var(--radius-sm);width:44px;height:44px;cursor:pointer;font-size:1.1rem;color:var(--danger)}

.result-card{background:var(--brand-light);border:1px solid #cfe6e0;border-radius:var(--radius);padding:20px;margin-top:18px}
.result-card.hidden{display:none}
.result-card .big{font-size:2rem;font-weight:800;color:var(--brand-dark)}
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:10px}
.result-grid .item .label{font-size:.78rem;color:var(--ink-soft);margin-bottom:2px}
.result-grid .item .val{font-weight:700;font-size:1.05rem}
.error-msg{background:#fdeceb;border:1px solid #f3c8c4;color:var(--danger);padding:12px 14px;border-radius:var(--radius-sm);font-size:.9rem;margin-top:12px}
.error-msg.hidden{display:none}
.notice{background:#fff8e6;border:1px solid #f0dfa8;color:#6b5106;padding:12px 14px;border-radius:var(--radius-sm);font-size:.87rem;margin:16px 0}

.content-block{max-width:760px;margin:32px 0}
.content-block h2{font-size:1.25rem;margin-top:28px}
.content-block ul{padding-left:20px}
.faq details{border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px;margin-bottom:10px;background:#fff}
.faq summary{font-weight:700;cursor:pointer}
.faq p{margin-top:8px;color:var(--ink-soft)}

.disclaimer{font-size:.83rem;color:var(--ink-soft);border-left:3px solid var(--brand);padding:10px 14px;background:var(--brand-light);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:16px 0}

/* Footer */
.site-footer{border-top:1px solid var(--border);margin-top:60px;padding:40px 0 24px;background:#fff}
.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:24px}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-grid h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);margin-bottom:10px}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin-bottom:8px}
.footer-grid a{text-decoration:none;font-size:.9rem;color:var(--ink)}
.footer-grid a:hover{color:var(--brand-dark)}
.footer-bottom{margin-top:30px;padding-top:20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.82rem;color:var(--ink-soft)}

.badge-live{font-size:.72rem;font-weight:700;color:#0d6b3a;background:#e5f6ec;padding:3px 8px;border-radius:999px}
.badge-soon{font-size:.72rem;font-weight:700;color:#8a5a00;background:#fff2d9;padding:3px 8px;border-radius:999px}

.skip-link{position:absolute;left:-999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;z-index:100}
.skip-link:focus{left:10px;top:10px}

.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:30px;text-align:center;cursor:pointer;background:#fff}
.drop-zone.dragover{border-color:var(--brand);background:var(--brand-light)}
.file-list{margin-top:14px;list-style:none;padding:0}
.file-list li{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:8px;font-size:.88rem;background:#fff}