/* SkillShop — monochrome + brushed metal */
:root{
  --bg:#ffffff; --card:#ffffff;
  --ink:#0d0d0d; --muted:#5c5c5c; --faint:#8e8e8e;
  --line:#e6e6e6; --line-soft:#efefef;
  --btn:#0d0d0d; --btn-hover:#2b2b2b;
  --radius:18px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-round:"SF Pro Rounded","Hiragino Maru Gothic ProN","Hiragino Maru Gothic Pro",ui-rounded,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background-color:var(--bg);
  background-image:repeating-linear-gradient(90deg, rgba(0,0,0,.012) 0 1px, transparent 1px 4px);
  color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:var(--ink);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1024px;margin:0 auto;padding:0 22px}
/* brushed metal utility */
.brushed{
  background-color:#f2f2f4;
  background-image:
    repeating-linear-gradient(93deg, rgba(255,255,255,.6) 0 1px, rgba(255,255,255,0) 1px 3px),
    repeating-linear-gradient(88deg, rgba(0,0,0,.030) 0 1px, rgba(0,0,0,0) 1px 4px),
    linear-gradient(165deg, #fbfbfc 0%, #ededf0 45%, #e0e0e5 75%, #f1f1f4 100%);
}
/* ---- nav ---- */
.topbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;height:52px;gap:6px}
.brand{font-family:var(--font-round);font-size:16px;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:9px;white-space:nowrap;letter-spacing:.01em}
.brand:hover{text-decoration:none}
.brand .logo{width:28px;height:28px;display:inline-flex;filter:drop-shadow(0 1px 2px rgba(0,0,0,.18))}
.nav{display:flex;gap:2px;margin-left:auto;align-items:center}
.nav a{color:var(--ink);opacity:.75;font-size:13px;font-weight:500;padding:8px 11px;border-radius:8px}
.nav a:hover{opacity:1;text-decoration:none;background:rgba(0,0,0,.05)}
.nav a.cta{background:var(--btn);color:#fff;opacity:1;border-radius:980px;padding:6px 15px;margin-left:6px}
.nav a.cta:hover{background:var(--btn-hover)}
/* ---- hero ---- */
.hero{padding:0;text-align:center}
.hero .brushed{padding:88px 22px 72px;border-bottom:1px solid var(--line)}
.eyebrow{font-family:var(--font-round);font-size:14px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.14em;text-transform:uppercase}
.eyebrow::before,.eyebrow::after{content:" — ";color:var(--faint);font-weight:400}
.hero h1{font-family:var(--font-round);font-size:clamp(40px,7vw,68px);font-weight:800;letter-spacing:-.02em;line-height:1.1;margin-bottom:18px;color:#0d0d0d}
.hero p.sub{font-size:clamp(16px,2.4vw,21px);color:var(--muted);max-width:640px;margin:0 auto 32px;line-height:1.55}
.cta-row{display:flex;gap:28px;justify-content:center;flex-wrap:wrap;align-items:center}
.link-more{font-size:17px;font-weight:600}
.link-more::after{content:" ›"}
.btn{display:inline-block;padding:13px 32px;border-radius:980px;font-weight:600;font-size:16px;border:none;cursor:pointer;transition:background .15s;box-shadow:0 2px 10px rgba(0,0,0,.12)}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--btn);color:#fff}
.btn-primary:hover{background:var(--btn-hover);color:#fff}
.btn-ghost{background:#fff;border:1px solid #d9d9d9;color:var(--ink);box-shadow:none}
.btn-ghost:hover{background:#f4f4f4;color:var(--ink)}
.fineprint{margin-top:26px;font-size:13px;color:var(--faint);letter-spacing:.04em}
/* ---- sections ---- */
.section{padding:72px 0;border-bottom:1px solid var(--line-soft)}
.sec-title{font-family:var(--font-round);font-size:clamp(28px,4.6vw,42px);font-weight:800;letter-spacing:-.02em;text-align:center;margin-bottom:10px;line-height:1.15}
.sec-sub{text-align:center;color:var(--muted);font-size:clamp(15px,2.2vw,18px);margin-bottom:44px;max-width:640px;margin-left:auto;margin-right:auto}
/* steps */
.stepgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px}
.step .n{font-family:var(--font-round);font-size:15px;font-weight:800;margin-bottom:12px;letter-spacing:.1em}
.step h3{font-family:var(--font-round);font-size:20px;font-weight:700;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}
.step code{background:#f4f4f4;border-radius:6px;padding:2px 8px;font-size:13px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
/* skill cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s,color .18s;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(0,0,0,.10);text-decoration:none}
.card .cat{font-size:11.5px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px}
.card h3{font-family:var(--font-round);font-size:21px;font-weight:700;margin-bottom:6px}
.card .tag{color:var(--muted);font-size:14.5px;margin-bottom:16px;flex:1}
.card .meta{display:flex;gap:10px;align-items:center;font-size:12.5px;color:var(--faint);border-top:1px solid var(--line-soft);padding-top:14px;flex-wrap:wrap}
.freebadge{display:inline-block;background:var(--ink);color:#fff;font-weight:700;font-size:11.5px;padding:3px 11px;border-radius:980px;letter-spacing:.03em}
.views{margin-left:auto;font-variant-numeric:tabular-nums;color:var(--faint)}
/* leaderboard */
.board{background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.board-head{padding:20px 26px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.board-head h3{font-family:var(--font-round);font-size:18px;font-weight:800}
.board-head .live{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:7px}
.board-head .live::before{content:"";width:8px;height:8px;border-radius:50%;background:#0d0d0d;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
.brow{display:flex;align-items:center;gap:18px;padding:15px 26px;border-bottom:1px solid var(--line-soft)}
.brow:last-child{border-bottom:none}
.brow .rank{font-family:var(--font-round);font-size:22px;font-weight:800;width:34px;color:var(--ink)}
.brow:nth-child(2) .rank,.brow:nth-child(3) .rank,.brow:nth-child(4) .rank{color:#000}
.brow .binfo{flex:1;min-width:0}
.brow .bnm{font-weight:700;font-size:15.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brow .bnm a{color:var(--ink)}
.brow .btg{color:var(--faint);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brow .gain{flex-shrink:0;font-size:13px;font-weight:700;background:#0d0d0d;color:#fff;border-radius:980px;padding:4px 13px;font-variant-numeric:tabular-nums}
.board-empty{padding:44px;text-align:center;color:var(--faint);font-size:15px}
/* search */
.searchbar{max-width:600px;margin:0 auto 20px;position:relative}
.searchbar input{width:100%;padding:14px 20px 14px 46px;font-size:16px;border:1px solid #d9d9d9;border-radius:980px;background:#fff;font-family:var(--font);outline:none;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.searchbar input:focus{border-color:var(--ink);box-shadow:0 0 0 4px rgba(0,0,0,.08)}
.searchbar .icon{position:absolute;left:17px;top:50%;transform:translateY(-50%);font-size:17px;color:var(--faint)}
.chips{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.chip{padding:8px 20px;border-radius:980px;border:1px solid #d9d9d9;background:#fff;font-size:14px;cursor:pointer;font-family:var(--font);color:var(--ink);font-weight:500}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.empty{display:none;text-align:center;color:var(--muted);padding:50px 0}
/* detail */
.crumb{font-size:13px;color:var(--faint);margin:30px 0 18px}
.crumb a{color:var(--faint)}
.detail-hero{text-align:center;padding:20px 0 40px}
.detail-hero h1{font-family:var(--font-round);font-size:clamp(36px,6vw,58px);font-weight:800;letter-spacing:-.02em;margin:14px 0 10px}
.detail-hero .tagline{font-size:clamp(17px,2.6vw,22px);color:var(--muted);max-width:640px;margin:0 auto 16px}
.badges{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:6px;align-items:center}
.verpill{display:inline-block;background:#f0f0f0;color:var(--muted);font-weight:600;font-size:12px;padding:3px 11px;border-radius:980px}
.viewspill{display:inline-block;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.specgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px}
.spec{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center}
.spec .k{font-size:13px;color:var(--faint);margin-bottom:6px}
.spec .v{font-weight:700;font-size:16px;font-family:var(--font-round)}
.panel{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:40px;margin-bottom:24px}
.panel h2{font-family:var(--font-round);font-size:25px;font-weight:800;margin-bottom:14px}
.panel p,.panel li{color:#333}
.panel ul,.panel ol{padding-left:22px;margin:10px 0}
.panel code{background:#f4f4f4;border-radius:6px;padding:2px 8px;font-size:13.5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
/* install widget */
.howto{background:#0d0d0d;color:#f5f5f7;border-radius:22px;padding:40px;margin-bottom:24px}
.howto h2{font-family:var(--font-round);font-size:25px;font-weight:800;margin-bottom:6px;color:#fff}
.howto .sub{color:#a1a1a6;font-size:15px;margin-bottom:20px}
.agentpick{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.agentpick .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#f5f5f7}
.agentpick .chip.on{background:#f5f5f7;border-color:#f5f5f7;color:#0d0d0d}
.sentence{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:18px;font-size:15px;margin-bottom:18px;line-height:1.7;color:#e8e8ed}
.howto .btnrow{display:flex;gap:12px;flex-wrap:wrap}
.howto .btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:none}
.howto .btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff}
.howto .tip{margin:16px 0 0;color:#a1a1a6;font-size:13.5px}
.howto select{width:100%;padding:12px;border-radius:12px;font-size:15px;font-family:var(--font);margin:6px 0 16px;background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.16)}
.howto select option{color:#1d1d1f}
/* directory rows */
.dirlist{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.dirrow{display:flex;align-items:center;gap:16px;padding:15px 22px;border-bottom:1px solid var(--line-soft)}
.dirrow:last-child{border-bottom:none}
.dirrow .info{flex:1;min-width:0}
.dirrow .nm{font-weight:700;font-size:15.5px}
.dirrow .nm a{color:var(--ink)}
.dirrow .tg{color:var(--faint);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dirrow .bdg{display:flex;gap:6px;flex-wrap:wrap;margin-top:5px;align-items:center}
.srcbadge{font-size:11px;font-weight:700;padding:2px 10px;border-radius:980px;letter-spacing:.02em}
.src-skillshop{background:#0d0d0d;color:#fff}
.src-community{background:#f0f0f0;color:#333}
.src-skillry{background:#fff;border:1px solid #d9d9d9;color:#666}
.acc-free{background:#0d0d0d;color:#fff;font-size:11px;font-weight:700;padding:2px 10px;border-radius:980px}
.acc-paid{background:#fff;border:1px solid #d9d9d9;color:#666;font-size:11px;font-weight:700;padding:2px 10px;border-radius:980px}
.catbadge{background:#f4f4f4;color:var(--muted);font-size:11px;font-weight:600;padding:2px 10px;border-radius:980px}
.dirrow .act{flex-shrink:0;display:flex;gap:8px;align-items:center}
.minibtn{font-size:13px;font-weight:600;padding:7px 16px;border-radius:980px;border:1px solid #d9d9d9;background:#fff;cursor:pointer;font-family:var(--font);color:var(--ink);white-space:nowrap}
.minibtn:hover{background:#f4f4f4}
.minibtn.solid{background:#0d0d0d;border-color:#0d0d0d;color:#fff}
.minibtn.solid:hover{background:#2b2b2b}
a.minibtn:hover{text-decoration:none}
.dirviews{font-size:12px;color:var(--faint);font-variant-numeric:tabular-nums}
/* pricing */
.pricegrid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:820px;margin:0 auto}
.price{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:44px 36px;text-align:center}
.price.hot{border:1.5px solid #0d0d0d;box-shadow:0 12px 34px rgba(0,0,0,.12)}
.price h3{font-family:var(--font-round);font-size:21px;font-weight:800}
.price .amount{font-family:var(--font-round);font-size:52px;font-weight:800;margin:12px 0 2px}
.price .per{color:var(--faint);font-size:14px;margin-bottom:22px}
.price ul{list-style:none;padding:0;text-align:left;max-width:300px;margin:0 auto}
.price li{padding:8px 0;font-size:15px;color:#333;border-bottom:1px solid var(--line-soft)}
.price li:last-child{border-bottom:none}
.price li::before{content:"✓  ";font-weight:700}
.price .btn{margin-top:24px}
.rules{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:40px;margin:24px auto 0;max-width:820px}
.rules h2{font-family:var(--font-round);font-size:23px;font-weight:800;margin-bottom:14px}
.rules li{margin:8px 0;color:#333;font-size:15px}
/* faq */
.faq{max-width:720px;margin:0 auto}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:10px}
.faq summary{padding:18px 22px;cursor:pointer;font-weight:700;font-size:16px;font-family:var(--font-round);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq details[open] summary{border-bottom:1px solid var(--line-soft)}
.faq .a{padding:18px 22px;color:#333;font-size:15px}
/* article */
.article{max-width:720px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:22px;padding:48px}
.article h1{font-family:var(--font-round);font-size:34px;font-weight:800;margin-bottom:18px;line-height:1.2}
.article h2{font-family:var(--font-round);font-size:23px;font-weight:800;margin:32px 0 12px}
.article p{margin:14px 0;color:#333}
.article ul,.article ol{padding-left:24px;margin:12px 0;color:#333}
.article li{margin:7px 0}
/* footer */
footer{margin-top:0;border-top:1px solid var(--line);padding:32px 0 38px;color:var(--faint);font-size:12px;background:#fff}
footer .cols{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-bottom:20px;border-bottom:1px solid var(--line-soft);margin-bottom:16px}
footer h4{font-size:12px;font-weight:700;color:var(--ink);margin-bottom:10px;font-family:var(--font-round)}
footer ul{list-style:none}
footer li{margin-bottom:7px}
footer a{color:#555}
.footnote{line-height:1.7}
.footnote .legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:12px;padding-top:14px;border-top:1px solid var(--line-soft)}
/* responsive */
@media(max-width:860px){
  .cards,.stepgrid{grid-template-columns:1fr 1fr}
  .nav a:not(.cta){display:none}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .cards,.stepgrid,.specgrid,.pricegrid{grid-template-columns:1fr}
  .hero .brushed{padding:60px 20px 52px}
  .article,.panel,.howto{padding:28px 22px}
  .price{padding:34px 24px}
  .dirrow .tg{display:none}
  .brow .btg{display:none}
}