:root{
  --ink:#14213d; --ink-2:#2b3a5c; --text:#1d2433; --muted:#5d6678;
  --bg:#f7f6f1; --card:#ffffff; --line:#e3e1d8; --accent:#ffc300; --accent-2:#ffd95e;
  --ok:#1f7a4d; --ok-bg:#e6f4ec; --warn:#8a5a00; --warn-bg:#fff4d6; --bad:#a1281f; --bad-bg:#fde8e6;
  --radius:14px; --shadow:0 1px 2px rgba(20,33,61,.06),0 6px 24px rgba(20,33,61,.06);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 "Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--ink-2)}
img{max-width:100%;height:auto}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.small{font-size:.875rem}.muted{color:var(--muted)}.d-block{display:block}.r{text-align:right}

/* Header */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-row{display:flex;align-items:center;gap:20px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:1.1rem;letter-spacing:-.01em}
.main-nav{display:flex;gap:4px;overflow-x:auto;margin-left:auto;scrollbar-width:none;max-width:100%}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{padding:8px 12px;border-radius:999px;text-decoration:none;color:var(--muted);font-weight:600;font-size:.92rem;white-space:nowrap}
.main-nav a:hover{color:var(--ink);background:#f1efe6}
.main-nav a.on{background:var(--ink);color:#fff}
@media (max-width:720px){.header-row{padding:8px 0;gap:6px}.main-nav{margin-left:0;width:100%}}

/* Hero */
.hero{background:var(--ink);color:#fff;padding:56px 0 64px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(255,195,0,.35),transparent 70%)}
.hero .wrap{position:relative;z-index:1}
.eyebrow{display:inline-block;background:var(--accent);color:var(--ink);font-weight:700;font-size:.8rem;padding:4px 10px;border-radius:999px;margin:0 0 14px;letter-spacing:.02em}
.hero h1{font-size:clamp(1.8rem,4.5vw,2.9rem);line-height:1.15;margin:0 0 14px;letter-spacing:-.02em;max-width:760px}
.hero .lead{color:#d6dbe6;font-size:1.08rem;max-width:640px;margin:0 0 24px}
.hero-cta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.stamp{font-size:.85rem;color:#c3cad8}

/* Buttons */
.btn{display:inline-block;border:0;border-radius:10px;padding:12px 20px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}
.btn-primary{background:var(--accent);color:var(--ink)}
.btn-primary:hover{background:var(--accent-2)}
.btn-ghost{background:transparent;border:1.5px dashed var(--line);color:var(--ink-2);padding:9px 16px}
.btn-ghost:hover{border-color:var(--ink-2)}

/* Tool cards */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin:-32px 0 36px;position:relative;z-index:2}
.tool-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;text-decoration:none;color:var(--text);box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px;transition:transform .15s,border-color .15s}
.tool-card:hover{transform:translateY(-2px);border-color:var(--ink-2)}
.tool-ico{width:44px;height:44px;border-radius:12px;background:#fff6d6;color:var(--ink);display:grid;place-items:center;margin-bottom:6px}
.tool-card-title{font-weight:700;color:var(--ink)}
.tool-card-desc{font-size:.88rem;color:var(--muted)}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:36px}
@media (max-width:820px){.two-col{grid-template-columns:1fr}}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.panel h2{margin:0 0 12px;font-size:1.15rem;color:var(--ink)}
.link-list{list-style:none;padding:0;margin:0}
.link-list li{border-bottom:1px solid var(--line)}
.link-list li:last-child{border-bottom:0}
.link-list a{display:block;padding:10px 0;text-decoration:none;font-weight:600;color:var(--ink-2)}
.link-list a:hover{color:var(--ink);text-decoration:underline}
.more{display:inline-block;margin-top:10px;font-weight:700;text-decoration:none}

/* Tables */
.tbl-wrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;font-size:.94rem}
.tbl th,.tbl td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl th{font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:700}
.tbl th.r,.tbl td.r{text-align:right}

/* Tool page */
.crumbs{font-size:.85rem;color:var(--muted);padding:18px 0 4px}
.crumbs a{color:var(--muted)}
.tool-head h1{font-size:clamp(1.6rem,3.6vw,2.3rem);line-height:1.2;margin:6px 0 8px;color:var(--ink);letter-spacing:-.02em}
.lead{color:var(--muted);font-size:1.05rem;margin:0 0 20px;max-width:760px}
.tool-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.tool-note{margin:10px 2px 26px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px;margin-bottom:6px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.span2{grid-column:1/-1}
@media (max-width:640px){.form-grid{grid-template-columns:1fr}.tool-box{padding:16px}}
label,.label{font-weight:700;font-size:.9rem;color:var(--ink)}
input[type=number],input[type=text],input[type=email],input[type=password],select,textarea{width:100%;font:inherit;padding:11px 12px;border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--text);min-width:0}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ink-2);box-shadow:0 0 0 3px rgba(43,58,92,.12)}
input[readonly]{background:#f5f4ef}
.input-pre,.input-post{display:flex;align-items:stretch}
.input-pre span,.input-post span{display:grid;place-items:center;padding:0 12px;background:#f1efe6;border:1.5px solid var(--line);font-weight:700;color:var(--muted);font-size:.9rem}
.input-pre span{border-right:0;border-radius:10px 0 0 10px}.input-pre input{border-radius:0 10px 10px 0}
.input-post span{border-left:0;border-radius:0 10px 10px 0}.input-post input{border-radius:10px 0 0 10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font:inherit;font-size:.86rem;font-weight:600;color:var(--ink-2);cursor:pointer;text-decoration:none}
.chip:hover{border-color:var(--ink-2);color:var(--ink)}
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg label{font-weight:600;border:1.5px solid var(--line);border-radius:10px;padding:8px 12px;cursor:pointer}
.seg label:has(input:checked){border-color:var(--ink);background:#f1efe6}
.check{display:flex;gap:8px;align-items:center;font-weight:600}

/* Result */
.result{margin-top:18px;background:#fbfaf6;border:1px solid var(--line);border-radius:12px;padding:18px}
.result:empty{display:none}
.big{display:flex;flex-direction:column;gap:2px;margin-bottom:12px}
.big span{color:var(--muted);font-weight:600;font-size:.92rem}
.big strong{font-size:clamp(1.7rem,4.5vw,2.3rem);color:var(--ink);letter-spacing:-.02em;line-height:1.15}
.big strong::after{content:"";display:block;width:56px;height:5px;background:var(--accent);border-radius:3px;margin-top:8px}
.lines .line{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:.95rem}
.lines .line:last-child{border-bottom:0}
.lines .line.strong{font-weight:800;color:var(--ink)}
.note-ok,.note-warn,.note-bad{border-radius:10px;padding:10px 12px;margin:12px 0 0;font-size:.92rem;font-weight:600}
.note-ok{background:var(--ok-bg);color:var(--ok)}
.note-warn{background:var(--warn-bg);color:var(--warn)}
.note-bad{background:var(--bad-bg);color:var(--bad)}
.sub-result{margin-top:22px}
.sub-result h3{font-size:1rem;color:var(--ink);margin:0 0 10px}
.small-result{margin-top:10px}

/* Appliance rows */
.rows-head{font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:700;margin:18px 0 6px}
.al-grid{display:grid;grid-template-columns:minmax(0,2.4fr) 1fr .8fr 1fr 36px;gap:8px;align-items:center}
.dy-grid{display:grid;grid-template-columns:minmax(0,2.6fr) 1fr .8fr 36px;gap:8px;align-items:center}
.app-row{margin-bottom:8px}
.r-del{width:36px;height:40px;border:1.5px solid var(--line);background:#fff;border-radius:10px;font-size:1.2rem;line-height:1;cursor:pointer;color:var(--muted)}
.r-del:hover{color:var(--bad);border-color:var(--bad)}
.row-actions{margin:6px 0 16px}
@media (max-width:640px){
  .rows-head{display:none}
  .al-grid{grid-template-columns:1fr 1fr 1fr 36px;padding:10px;border:1px solid var(--line);border-radius:12px}
  .al-grid .r-app{grid-column:1/-1}
  .dy-grid{grid-template-columns:1fr 1fr 36px;padding:10px;border:1px solid var(--line);border-radius:12px}
  .dy-grid .r-app{grid-column:1/-1}
}
.bars{display:flex;flex-direction:column;gap:8px}
.bar-row{display:grid;grid-template-columns:minmax(0,1.3fr) 2fr auto;gap:10px;align-items:center;font-size:.9rem}
.bar{height:10px;background:#efede4;border-radius:6px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--ink-2);border-radius:6px}
.bar-val{text-align:right;font-weight:700;white-space:nowrap}
.bar-val small{display:block;font-weight:500;color:var(--muted);font-size:.78rem}
.result h4{margin:18px 0 10px;font-size:.95rem;color:var(--ink)}

/* Prose */
.prose{max-width:760px}
.prose h1{font-size:clamp(1.6rem,3.6vw,2.2rem);line-height:1.2;color:var(--ink);letter-spacing:-.02em;margin:8px 0 6px}
.prose h2{font-size:1.35rem;color:var(--ink);margin:34px 0 10px;line-height:1.3}
.prose h3{font-size:1.1rem;color:var(--ink);margin:24px 0 8px}
.prose p,.prose li{font-size:1.02rem}
.prose ul,.prose ol{padding-left:1.3em}
.prose table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.94rem;display:block;overflow-x:auto}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left}
.prose th{background:#f1efe6}
.prose blockquote,.prose .box{margin:16px 0;padding:14px 16px;background:#fff6d6;border-left:4px solid var(--accent);border-radius:8px}
.prose code{background:#efede4;padding:2px 6px;border-radius:6px;font-size:.92em}
.meta{color:var(--muted);font-size:.9rem;margin:0 0 18px}
.tool-article{margin:10px 0 30px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:8px 0;padding:0 16px}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0;color:var(--ink)}
.faq details>div{padding:0 0 14px}
.home-about{margin:0 auto 40px}
.article-wrap{max-width:820px;padding-bottom:30px}

/* Cards */
.related,.other-tools{margin:24px 0}
.related h2,.other-tools h2{font-size:1.15rem;color:var(--ink)}
.card-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.a-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;text-decoration:none;color:var(--text);display:flex;flex-direction:column;gap:6px}
.a-card:hover{border-color:var(--ink-2)}
.a-card strong{color:var(--ink);line-height:1.35}
.a-card span{font-size:.9rem;color:var(--muted)}
.a-card small{color:var(--muted)}
.tag{font-style:normal;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--warn);background:var(--warn-bg);align-self:flex-start;padding:2px 8px;border-radius:999px}
.cta-box{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;background:var(--ink);color:#fff;border-radius:var(--radius);padding:18px 20px;margin:28px 0}
.cta-box strong{display:block;font-size:1.05rem}
.cta-box span{color:#c3cad8;font-size:.92rem}
.pager{display:flex;gap:6px;margin:26px 0}
.pager a{padding:7px 13px;border:1px solid var(--line);border-radius:8px;text-decoration:none;background:#fff}
.pager a.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.grid3{margin:20px 0}
.notfound{padding:40px 16px}

/* Ads */
.ad{margin:18px auto;text-align:center;max-width:1080px;padding:0 16px;overflow:hidden}

/* Footer */
.site-footer{background:var(--ink);color:#c3cad8;margin-top:40px;padding:40px 0 20px;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}
@media (max-width:720px){.footer-grid{grid-template-columns:1fr}}
.foot-brand{color:#fff;font-weight:800;font-size:1.1rem}
.foot-h{color:#fff;font-weight:700;margin-bottom:8px}
.site-footer a{display:block;color:#c3cad8;text-decoration:none;padding:3px 0}
.site-footer a:hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:24px;padding-top:16px;font-size:.85rem}