/* ---- base (shared) ---- */
[hidden]{display:none!important}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;color-scheme:light dark}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--fg);line-height:1.6;font-size:1.0625rem;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
img,svg{max-width:100%}
a{color:var(--link)}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
h1,h2,h3{font-family:var(--font-head);line-height:1.2;letter-spacing:var(--head-ls,-.01em)}
h1{font-size:clamp(1.7rem,4.5vw,2.6rem);margin:.2em 0 .3em}
h2{font-size:clamp(1.3rem,3vw,1.7rem);margin:1.6em 0 .5em}
h3{font-size:1.15rem;margin:1.3em 0 .4em}
code{font-size:.92em}
.wrap{width:100%;max-width:var(--maxw,1040px);margin:0 auto;padding:0 1rem}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-fg);padding:.6rem 1rem;z-index:10}
.skip:focus{left:.5rem;top:.5rem}
.site-header{background:var(--hdr-bg,var(--card));border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5}
.hdr{display:flex;align-items:center;gap:.75rem;min-height:3.6rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--hdr-fg,var(--fg));font-family:var(--font-head);font-weight:800;font-size:1.2rem;margin-right:auto}
.brand img{width:32px;height:32px}
.nav-toggle,.theme-toggle{font:inherit;background:transparent;color:var(--hdr-fg,var(--fg));border:1px solid var(--border);border-radius:var(--radius-sm);padding:.35rem .7rem;cursor:pointer;min-height:2.4rem}
.theme-toggle{font-size:1.1rem;width:2.6rem}
.site-nav{flex-basis:100%;display:none;order:3}
.site-nav.open{display:block}
.site-nav ul{list-style:none;margin:0 0 .6rem;padding:0;display:flex;flex-direction:column;gap:.15rem}
.site-nav a{display:block;padding:.5rem .7rem;border-radius:var(--radius-sm);text-decoration:none;color:var(--hdr-fg,var(--fg));font-weight:600;font-size:.95rem}
.site-nav a:hover{background:var(--hover)}
.site-nav a[aria-current=page]{background:var(--accent);color:var(--accent-fg)}
@media (min-width:900px){
  .nav-toggle{display:none}
  .hdr{padding-top:.4rem}
  .site-nav{display:block;flex-basis:100%;order:3}
  .site-nav ul{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;margin:0 -.6rem;padding-bottom:.45rem;scrollbar-width:thin}
  .site-nav a{padding:.35rem .6rem;white-space:nowrap;font-size:.9rem}
  .site-header{position:static}
}
.hero{padding:1.6rem 0 .6rem}
.lead{font-size:1.12rem;color:var(--muted);max-width:52rem;margin:.2rem 0 0}
.tool{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(1rem,3vw,1.75rem);box-shadow:var(--shadow);margin:1rem 0}
.content,.faq,.related{max-width:52rem}
.content{margin-top:1.5rem}
.content ul,.content ol{padding-left:1.3rem}
.content li{margin:.25rem 0}
.content table{border-collapse:collapse;width:100%;margin:1rem 0;font-size:.95rem}
.content th,.content td{border:1px solid var(--border);padding:.45rem .6rem;text-align:left}
.content th{background:var(--hover)}
.faq details{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);margin:.5rem 0}
.faq summary{cursor:pointer;padding:.85rem 1rem;font-weight:700;list-style-position:outside}
.faq .ans{padding:0 1rem .5rem}
.faq .ans p{margin:.2rem 0 .8rem}
.related{margin-bottom:1rem}
.cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:.75rem}
.cards a{display:flex;flex-direction:column;gap:.25rem;height:100%;padding:1rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);text-decoration:none;color:var(--fg);transition:transform .15s,border-color .15s}
.cards a:hover{transform:translateY(-2px);border-color:var(--accent)}
.cards span{color:var(--muted);font-size:.92rem}
.ad-slot{display:flex;align-items:center;justify-content:center;min-height:90px;margin:1rem 0;border:1px dashed var(--border);border-radius:var(--radius-sm);color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;opacity:.7}
.ad-slot:empty::before{content:""}
.site-footer{margin-top:3rem;border-top:1px solid var(--border);background:var(--card);font-size:.92rem;color:var(--muted)}
.foot{display:grid;gap:1rem;padding:1.6rem 1rem}
@media (min-width:700px){.foot{grid-template-columns:2fr 2fr 1fr}}
.foot ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.3rem 1rem}
.foot a{color:var(--muted)}
.foot-brand{font-weight:800;color:var(--fg);font-family:var(--font-head);margin:0 0 .3rem}
.copy{grid-column:1/-1;margin:0}
.btn,button.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;font:inherit;font-weight:700;background:var(--accent);color:var(--accent-fg);border:0;border-radius:var(--radius-sm);padding:.7rem 1.2rem;cursor:pointer;text-decoration:none;min-height:2.75rem}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--border)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.row{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
label{font-weight:600}
input,select,textarea{font:inherit;color:var(--fg);background:var(--input-bg,var(--bg));border:1px solid var(--border);border-radius:var(--radius-sm);padding:.6rem .7rem;max-width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
.field{display:flex;flex-direction:column;gap:.3rem;margin-bottom:.8rem}
.grid2{display:grid;gap:.8rem}
@media (min-width:640px){.grid2{grid-template-columns:1fr 1fr}}
.muted{color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.nf{text-align:center;padding:4rem 0}
.nf-code{font-size:5rem;font-weight:900;margin:0;color:var(--accent);font-family:var(--font-head)}
.toast{position:fixed;left:50%;bottom:1.2rem;transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:.6rem 1rem;border-radius:var(--radius-sm);font-weight:600;z-index:20;opacity:0;transition:opacity .2s;pointer-events:none}
.toast.show{opacity:1}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

[hidden]{display:none!important}
.wc-text{width:100%;min-height:14rem;resize:vertical;font:inherit;font-size:1rem;line-height:1.6;padding:.9rem 1rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--input-bg,var(--card));color:var(--fg)}
.wc-text:focus{outline:2px solid var(--accent);outline-offset:1px}
.wc-bar{display:flex;flex-wrap:wrap;gap:.5rem;margin:.6rem 0 1rem}
.btn.ghost{background:transparent}
.wc-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:.6rem}
@media (min-width:640px){.wc-stats{grid-template-columns:repeat(6,1fr)}.wc-stat.big{grid-column:span 1}}
.wc-stat{background:var(--hover);border-radius:var(--radius-sm);padding:.7rem .8rem;display:flex;flex-direction:column;gap:.15rem;min-width:0}
.wc-stat.big{background:var(--accent);color:var(--accent-fg)}
.wc-stat.big .wc-lbl{color:inherit;opacity:.85}
.wc-num{font-family:var(--font-num,var(--font-head));font-size:1.6rem;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.1;overflow-wrap:anywhere}
.wc-lbl{font-size:.82rem;color:var(--muted)}
.wc-times{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:.6rem;margin-top:.6rem}
.wc-tcard{border:1px solid var(--border);border-radius:var(--radius-sm);padding:.7rem .8rem;display:flex;flex-direction:column;gap:.3rem}
.wc-time{font-size:1.15rem}
.wc-tcard select{font:inherit;font-size:.85rem;padding:.25rem .4rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--input-bg,var(--card));color:var(--fg);align-self:flex-start}
.wc-panel{margin-top:1.4rem;border-top:1px solid var(--border);padding-top:1rem}
.wc-h{font-size:1.1rem;margin:0 0 .7rem}
.wc-caserow{display:flex;flex-wrap:wrap;gap:.5rem}
.wc-densctl{display:flex;flex-wrap:wrap;gap:.8rem 1.2rem;align-items:center;margin-bottom:.6rem}
.wc-seg{display:flex;gap:.35rem}
.chip[aria-pressed=true]{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}
.wc-tblwrap{overflow-x:auto}
.wc-dens{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.wc-dens th,.wc-dens td{text-align:left;padding:.4rem .5rem;border-bottom:1px solid var(--border)}
.wc-dens td.kw{font-weight:600;overflow-wrap:anywhere}
.wc-dens th:nth-child(n+3),.wc-dens td:nth-child(n+3){text-align:right}
.wc-note{font-size:.85rem;margin:.5rem 0 0}
.wc-limrow{display:flex;flex-wrap:wrap;gap:.5rem}
.wc-limrow select,.wc-limin{font:inherit;padding:.45rem .6rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--input-bg,var(--card));color:var(--fg)}
.wc-limin{width:8rem}
.wc-limbar{height:.7rem;background:var(--hover);border-radius:999px;margin:.8rem 0 .4rem;overflow:hidden}
.wc-limfill{height:100%;width:0;background:var(--accent);transition:width .2s}
.wc-limit.over .wc-limfill{background:#d63a3a}
.wc-limit.over .wc-limtxt{color:#d63a3a;font-weight:700}
.wc-limtxt{margin:0;font-size:.92rem}
.pf-check{display:flex;gap:.55rem;align-items:center;cursor:pointer}
.pf-check input{width:1.1rem;height:1.1rem;accent-color:var(--accent)}

:root{--font:"Segoe UI",Roboto,"Noto Sans","Helvetica Neue",Arial,sans-serif;--font-head:"Segoe UI",Roboto,"Noto Sans",Arial,sans-serif;--font-num:"Segoe UI",Roboto,Arial,sans-serif;--radius:14px;--radius-sm:10px;--maxw:1080px;--bg:#f5f8ff;--fg:#13203a;--muted:#53617d;--card:#ffffff;--accent:#1d4ed8;--accent-fg:#ffffff;--border:#d6deef;--link:#1d4ed8;--hover:#e8eefc;--shadow:0 10px 30px rgba(29,78,216,.08);--hdr-bg:#ffffff;--hdr-fg:#13203a;--input-bg:#fbfcff}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0c1222;--fg:#e5ebf7;--muted:#9aa7c2;--card:#131c31;--accent:#6d9bff;--accent-fg:#07101f;--border:#26324d;--link:#8db3ff;--hover:#1b2742;--shadow:0 10px 30px rgba(0,0,0,.35);--hdr-bg:#0f1729;--hdr-fg:#e5ebf7;--input-bg:#0f1729}}
:root[data-theme=dark]{--bg:#0c1222;--fg:#e5ebf7;--muted:#9aa7c2;--card:#131c31;--accent:#6d9bff;--accent-fg:#07101f;--border:#26324d;--link:#8db3ff;--hover:#1b2742;--shadow:0 10px 30px rgba(0,0,0,.35);--hdr-bg:#0f1729;--hdr-fg:#e5ebf7;--input-bg:#0f1729}

.site-header{border-bottom:3px solid var(--accent)}
.hero{background:linear-gradient(135deg,#1e40af,#2563eb);color:#fff;border-radius:var(--radius);padding:1.6rem 1.4rem;margin-top:1rem}
.hero h1{color:#fff;font-size:clamp(1.6rem,4vw,2.4rem);letter-spacing:-.01em}
.hero p,.hero .lead{color:rgba(255,255,255,.92)}
.hero a{color:#fff}
.wc-stat.big{background:#fbbf24;color:#13203a}
[data-theme=dark] .wc-stat.big{background:#fbbf24;color:#13203a}
.wc-text{font-family:Georgia,"Times New Roman",serif;font-size:1.05rem}