/* ToolsKit - main styles */
:root{--bg:#fff;--surface:#f5f8f8;--card:#fff;--ink:#16252b;--muted:#53656b;--line:#d9e3e5;--brand:#0b6e6e;--brand-ink:#fff;--accent:#c97a00;--ok:#0a7a3d;--err:#b3261e;--focus:#1b5fd1;--radius:10px;--max:1120px}
:root[data-theme=dark]{--bg:#0e171a;--surface:#142226;--card:#17272c;--ink:#e6f0f1;--muted:#9fb3b8;--line:#27393e;--brand:#3fc1b8;--brand-ink:#05201f;--accent:#f0b24a;--ok:#4cd68a;--err:#ff8a80;--focus:#8ab4ff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 "Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--brand)}a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--brand);color:var(--brand-ink);padding:8px 14px;z-index:100}.skip:focus{left:8px;top:8px}
.container{width:min(100% - 32px,var(--max));margin-inline:auto}
h1,h2,h3{line-height:1.25;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(1.8rem,4.5vw,2.7rem)}h2{font-size:clamp(1.3rem,3vw,1.75rem);margin-top:1.6em}h3{font-size:1.1rem}
p{margin:0 0 1em}ul,ol{padding-left:1.3em;margin:0 0 1em}li{margin-bottom:.35em}
.site-header{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:62px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.25rem;color:var(--ink);text-decoration:none}
.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:8px;background:var(--brand);color:var(--brand-ink);font-size:1.05rem}
.nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav a{display:block;padding:8px 12px;border-radius:8px;color:var(--ink);text-decoration:none;font-weight:600}
.nav a:hover,.nav a[aria-current=page]{background:var(--surface);color:var(--brand)}
.hdr-actions{display:flex;gap:8px;align-items:center}
.icon-btn{width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:10px;cursor:pointer;font-size:1.1rem}
.menu-btn{display:none}
.hero{padding:56px 0 40px;background:linear-gradient(180deg,var(--surface),var(--bg))}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:60ch}
.search{display:flex;gap:8px;max-width:620px;margin:22px 0 10px}
.search input{flex:1}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{display:inline-block;padding:5px 12px;border:1px solid var(--line);border-radius:99px;background:var(--card);color:var(--ink);text-decoration:none;font-size:.9rem}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.section{padding:36px 0}.section.alt{background:var(--surface)}
.section>.container>h2:first-child{margin-top:0}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.tool-card{display:flex;flex-direction:column;gap:6px;padding:18px;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--radius);background:var(--card);color:var(--ink);text-decoration:none}
.tool-card:hover{border-color:var(--brand);box-shadow:0 2px 10px rgba(0,0,0,.08)}
.tool-card strong{font-size:1.05rem;color:var(--brand)}.tool-card span{color:var(--muted);font-size:.93rem}
.tool-card[hidden]{display:none}
.badge{display:inline-block;align-self:flex-start;font-size:.75rem;background:var(--accent);color:#fff;padding:1px 8px;border-radius:99px}
.cat-list{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.cat{padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}
.cat h3{margin-bottom:.4em}.cat ul{margin:0;list-style:none;padding:0}
details{border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;margin-bottom:10px;background:var(--card)}
summary{cursor:pointer;font-weight:700}details[open] summary{margin-bottom:8px}
.crumbs{padding:14px 0 0;font-size:.9rem;color:var(--muted)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.crumbs li{margin:0}.crumbs li+li::before{content:"/";margin-right:6px;color:var(--muted)}
.page-head{padding:18px 0 6px}.page-head p{color:var(--muted);max-width:70ch;font-size:1.05rem}
.tool-box{border:1px solid var(--line);border-top:4px solid var(--brand);border-radius:var(--radius);padding:20px;background:var(--card);margin:18px 0 24px}
.form-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
label,.lbl{display:block;font-weight:600;margin-bottom:4px;font-size:.95rem}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font:inherit}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--brand)}
textarea{min-height:200px;font-family:ui-monospace,Consolas,Menlo,monospace;font-size:.92rem;resize:vertical}
.hint{font-size:.85rem;color:var(--muted);margin-top:3px}
label.check{display:flex;align-items:center;gap:8px;font-weight:500;margin:6px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border:1px solid var(--brand);background:var(--brand);color:var(--brand-ink);border-radius:8px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}
.btn:hover{filter:brightness(1.08)}.btn.sec{background:transparent;color:var(--brand)}.btn.sm{padding:5px 10px;font-size:.85rem}
.btn:disabled{opacity:.5;cursor:not-allowed}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.error{color:var(--err);font-weight:600;margin:10px 0 0;white-space:pre-wrap}.error:empty{display:none}
.out{margin-top:18px}.out:empty{display:none}
.res-grid{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.res{padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.res small{display:block;color:var(--muted)}.res b{font-size:1.25rem;word-break:break-word}.res.main{border-color:var(--brand)}.res.main b{color:var(--brand)}
.steps-calc{background:var(--surface);border-radius:8px;padding:12px 16px;margin-top:12px;font-size:.95rem}.steps-calc h3{font-size:1rem;margin-bottom:.4em}.steps-calc ol{margin:0}
.msg{padding:10px 14px;border-radius:8px;margin-top:12px;background:var(--surface);border-left:4px solid var(--brand)}.msg.warn{border-color:var(--accent)}
.tbl-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;min-width:560px}th,td{padding:8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{font-size:.85rem;color:var(--muted)}
td input,td select{min-width:80px}
.drop{border:2px dashed var(--line);border-radius:var(--radius);padding:30px 16px;text-align:center;background:var(--surface);cursor:pointer}
.drop.over{border-color:var(--brand);background:var(--card)}.drop p{margin:.3em 0}
.file-list{list-style:none;padding:0;display:grid;gap:12px;margin-top:14px}
.file-item{display:flex;gap:14px;align-items:center;border:1px solid var(--line);border-radius:8px;padding:10px;background:var(--bg);flex-wrap:wrap}
.file-item img{width:84px;height:84px;object-fit:contain;background:var(--surface);border-radius:6px}
.file-item .meta{flex:1;min-width:180px;font-size:.92rem;word-break:break-word}.file-item .meta b{display:block}
.content{max-width:820px}.content h2{border-top:1px solid var(--line);padding-top:1.1em}
.example{background:var(--surface);border-left:4px solid var(--accent);padding:10px 16px;border-radius:0 8px 8px 0;margin-bottom:12px}
.related{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0}
.privacy-note{border:1px solid var(--line);border-radius:8px;padding:12px 16px;background:var(--surface)}
.ad-slot{margin:22px auto;text-align:center;min-height:90px;border:1px dashed var(--line);color:var(--muted);font-size:.8rem}
.ad-slot[hidden]{display:none}
.site-footer{margin-top:50px;background:var(--surface);border-top:1px solid var(--line);padding:34px 0 20px;font-size:.95rem}
.foot-grid{display:grid;gap:24px;grid-template-columns:2fr 1fr 1fr 1fr}.site-footer h2{font-size:1rem;margin:0 0 .6em}.site-footer ul{list-style:none;padding:0}.site-footer a{color:var(--ink)}
.copy{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:.88rem}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:9px 18px;border-radius:99px;font-weight:600;z-index:200;opacity:0;pointer-events:none;transition:opacity .2s}
.toast.show{opacity:1}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.site-header,.site-footer,.ad-slot,.actions{display:none}}