:root{--bg:#070916;--panel:#0d1226;--panel2:#11172c;--text:#f7f8ff;--muted:#a8b1c7;--line:rgba(255,255,255,.10);--primary:#7c5cff;--secondary:#21d4fd;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#070916;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}
body:before{content:"";position:fixed;inset:0;z-index:-3;background:radial-gradient(circle at 8% 10%,rgba(124,92,255,.18),transparent 28%),radial-gradient(circle at 92% 15%,rgba(33,212,253,.12),transparent 24%),#070916}
a{color:inherit;text-decoration:none}.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(7,9,22,.78);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{min-height:72px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:20px;white-space:nowrap}.brand-mark{width:35px;height:35px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--secondary));box-shadow:0 10px 30px rgba(124,92,255,.32)}
.nav-links{display:flex;gap:18px;margin-left:18px;color:#c7cee0;font-size:14px}.nav-links a:hover{color:#fff}.nav-right{margin-left:auto;display:flex;align-items:center;gap:9px}.top-search{width:230px;background:rgba(255,255,255,.055);border:1px solid var(--line);border-radius:11px;padding:10px 12px;color:#fff;outline:0}.top-search:focus{border-color:rgba(124,92,255,.8);box-shadow:0 0 0 4px rgba(124,92,255,.12)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);border-radius:11px;padding:10px 15px;background:rgba(255,255,255,.055);color:#fff;font-weight:800;cursor:pointer}.btn.primary{background:linear-gradient(135deg,var(--primary),#5d3df5);border-color:transparent;box-shadow:0 12px 30px rgba(124,92,255,.24)}
.hero{position:relative;overflow:hidden;min-height:640px;display:grid;align-items:center}.scene{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.hero-content{position:relative;z-index:2;padding:90px 0 75px;max-width:850px}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.045);color:#ddd9ff;font-size:13px;font-weight:800}
.hero h1{font-size:clamp(50px,7vw,88px);line-height:.97;letter-spacing:-4px;margin:20px 0;background:linear-gradient(100deg,#fff 10%,#d8d1ff 58%,#74e7ff);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:19px;color:#b7c0d5;max-width:750px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:13px;margin-top:40px}.metric{padding:17px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.045)}.metric strong{font-size:24px;display:block}.metric span{font-size:13px;color:var(--muted)}
.section{padding:65px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section-head h2{font-size:30px;line-height:1.15;margin:0}.section-head p{margin:7px 0 0;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card{min-height:140px;padding:19px;border:1px solid var(--line);border-radius:17px;background:linear-gradient(145deg,rgba(255,255,255,.065),rgba(255,255,255,.025));transition:.22s;position:relative;overflow:hidden}.card:after{content:"";position:absolute;inset:auto -20% -60% -20%;height:100px;background:radial-gradient(circle,rgba(124,92,255,.14),transparent 65%);opacity:0;transition:.2s}.card:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.55);box-shadow:0 20px 45px rgba(0,0,0,.23)}.card:hover:after{opacity:1}.card-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(124,92,255,.28),rgba(33,212,253,.14));margin-bottom:13px}.card h3{margin:0 0 5px;font-size:16px}.card p{margin:0;color:var(--muted);font-size:13px}
.feature{display:grid;grid-template-columns:1.15fr .85fr;gap:16px}.panel{padding:27px;border:1px solid var(--line);border-radius:21px;background:linear-gradient(145deg,rgba(124,92,255,.13),rgba(255,255,255,.035))}.panel h3{font-size:28px;margin:0 0 9px}.panel p{color:var(--muted)}.ad-slot{min-height:120px;border:1px dashed rgba(255,255,255,.18);border-radius:14px;display:grid;place-items:center;color:#7d89a3;font-size:13px}
.page-shell{position:relative;min-height:calc(100vh - 72px);overflow:hidden}.page-scene{position:fixed;inset:72px 0 0;width:100%;height:calc(100% - 72px);pointer-events:none;opacity:.55}.article-wrap{position:relative;z-index:2;padding:55px 0 75px}.article-card{max-width:930px;margin:auto;background:rgba(13,18,38,.80);border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:0 30px 80px rgba(0,0,0,.22);backdrop-filter:blur(8px)}.article-card h1{font-size:46px;line-height:1.1;margin:10px 0}.article-card h2{font-size:26px;margin-top:35px}.article-card h3{font-size:20px;margin-top:28px}.article-card p,.article-card li{color:#c4ccdd}.article-card table{width:100%;border-collapse:collapse;margin:18px 0 26px;overflow:hidden}.article-card th,.article-card td{padding:11px 12px;text-align:left;border:1px solid var(--line)}.article-card th{background:rgba(124,92,255,.12);color:#fff}.article-card code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:5px;color:#e6e0ff}.article-card img{max-width:100%;height:auto;border-radius:12px}.backlink{color:#b9b1ff;font-weight:800}.article-meta{color:var(--muted)}
.search-page{padding:55px 0 75px}.search-title{text-align:center;font-size:56px;margin:15px 0 8px}.search-lead{text-align:center;color:var(--muted);margin-bottom:25px}.big-search{display:block;width:min(700px,100%);margin:0 auto 32px;padding:15px 17px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.055);color:#fff;outline:0;font-size:16px}.big-search:focus{border-color:rgba(124,92,255,.75);box-shadow:0 0 0 4px rgba(124,92,255,.11)}
.info-page{padding:65px 0 80px}.info-card{max-width:850px;margin:auto}.info-card h1{font-size:50px;margin:0 0 15px}.info-card h2{margin-top:32px}.info-card p,.info-card li{color:#bac4d8}.contact-box{padding:24px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.04)}
.footer{border-top:1px solid var(--line);padding:40px 0;color:#7f8ba5}.footer-row{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.footer a:hover{color:#fff}
@media(max-width:980px){.grid{grid-template-columns:repeat(3,1fr)}.feature{grid-template-columns:1fr}.nav-links{display:none}}
@media(max-width:700px){.container{width:min(100% - 28px,var(--max))}.grid{grid-template-columns:repeat(2,1fr)}.top-search{width:150px}.nav-right .btn{display:none}.hero{min-height:680px}.hero h1{letter-spacing:-2px}.metrics{grid-template-columns:1fr}.article-card{padding:22px}.article-card h1{font-size:36px}.search-title{font-size:43px}}
@media(max-width:460px){.grid{grid-template-columns:1fr}.brand{font-size:17px}.top-search{width:125px}}

/* Performance layer */
.card{content-visibility:auto;contain-intrinsic-size:140px}
.grid{contain:layout paint}
@media (hover:none),(pointer:coarse){
  .site-header{backdrop-filter:none}
  .article-card{backdrop-filter:none}
  .card{transition:none}
  .card:hover{transform:none;box-shadow:none}
}
@media (max-width:700px){
  html{scroll-behavior:auto}
  body:before{position:absolute}
  .hero{min-height:590px}
  .hero-content{padding:64px 0 55px}
  .hero h1{font-size:clamp(40px,12vw,62px)}
  .hero p{font-size:16px}
  .section{padding:45px 0}
  .card{min-height:126px;padding:16px}
  .panel{padding:21px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}
.seo-ad{margin:24px 0;padding:8px 0;min-height:90px;display:flex;justify-content:center;align-items:center;overflow:hidden}.seo-ad .adsbygoogle{display:block;width:100%;min-height:90px}.article-card .seo-ad:first-of-type{margin-top:8px}.article-card .seo-ad:last-of-type{margin-bottom:8px}@media(max-width:700px){.seo-ad{min-height:80px}.seo-ad .adsbygoogle{min-height:80px}}
.brand-logo{display:block;width:170px;height:auto;max-height:48px;object-fit:contain;object-position:left center}.site-header .brand-logo{width:180px}@media(max-width:640px){.brand-logo,.site-header .brand-logo{width:145px;max-height:42px}}

/* ===== Web Nova universal responsive layer v2 ===== */
html{width:100%;max-width:100%;overflow-x:hidden}
body{width:100%;max-width:100%;overflow-x:hidden;-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility}
img,svg,video,canvas,iframe{max-width:100%;height:auto}
iframe{border:0}
button,input,select,textarea{font:inherit;max-width:100%}
pre{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:pre}
table{max-width:100%}
.article-card table,.article-card pre{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
.article-card table{width:max-content;min-width:100%}
.article-card{overflow-wrap:anywhere}
.article-card code,.article-card pre code{overflow-wrap:normal}
.container{width:calc(100% - 40px);max-width:var(--max)}
.nav{width:100%;min-width:0}
.brand{flex:0 0 auto;min-width:0}
.brand span:last-child{overflow:hidden;text-overflow:ellipsis}
.nav-right{min-width:0}
.top-search{min-width:0}
.hero-content,.section,.article-wrap,.search-page,.info-page{min-width:0}
.hero h1,.search-title,.info-card h1,.article-card h1{overflow-wrap:anywhere}
.grid,.metrics,.feature{min-width:0}
.card{min-width:0}
.ad-slot{width:100%;overflow:hidden}

/* Mobile navigation trigger is created by site-runtime.js */
.mobile-menu-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.055);color:#fff;cursor:pointer;flex:0 0 44px}
.mobile-menu-toggle svg{width:21px;height:21px}
.site-header.menu-open .nav-links{display:flex}

@media (max-width:1100px){
  .nav{gap:12px}
  .nav-links{gap:12px;margin-left:8px;font-size:13px}
  .top-search{width:190px}
  .grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:820px){
  .container{width:calc(100% - 32px)}
  .mobile-menu-toggle{display:inline-flex;order:3}
  .nav-right{margin-left:auto;order:2}
  .nav-right .btn{display:none}
  .top-search{width:min(34vw,210px)}
  .nav-links{
    display:none;
    position:absolute;
    left:16px;right:16px;top:calc(100% + 8px);
    margin:0;padding:10px;
    flex-direction:column;gap:4px;
    background:rgba(13,18,38,.98);
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:0 18px 50px rgba(0,0,0,.35);
  }
  .nav-links a{padding:11px 12px;border-radius:10px}
  .nav-links a:hover{background:rgba(255,255,255,.06)}
  .site-header{position:sticky}
  .site-header .nav{position:relative}
  .hero{min-height:0}
  .hero-content{padding:72px 0 58px}
  .hero h1{font-size:clamp(40px,9vw,68px)}
  .hero p{max-width:100%;font-size:17px}
  .metrics{grid-template-columns:repeat(3,minmax(0,1fr))}
  .feature{grid-template-columns:1fr}
  .article-wrap,.search-page,.info-page{padding-top:38px}
  .article-card{border-radius:17px}
}
@media (max-width:640px){
  .container{width:calc(100% - 24px)}
  .nav{min-height:64px}
  .brand{font-size:18px}
  .brand-mark{width:32px;height:32px}
  .top-search{width:min(42vw,175px);padding:9px 10px}
  .nav-links{left:12px;right:12px}
  .hero-content{padding:58px 0 48px}
  .hero h1{font-size:clamp(38px,11.5vw,58px);letter-spacing:-2px}
  .hero p{font-size:16px;line-height:1.55}
  .hero-actions{display:grid;grid-template-columns:1fr;gap:9px}
  .hero-actions .btn{width:100%}
  .metrics{grid-template-columns:1fr;gap:9px;margin-top:28px}
  .section{padding:42px 0}
  .section-head{align-items:flex-start;flex-direction:column;gap:12px}
  .section-head h2{font-size:26px}
  .section-head .btn{width:100%}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .card{padding:15px;min-height:120px;border-radius:14px}
  .card h3{font-size:15px}
  .card p{font-size:12px}
  .article-card{padding:18px;border-radius:15px}
  .article-card h1{font-size:clamp(30px,9vw,40px)}
  .article-card h2{font-size:23px}
  .article-card h3{font-size:18px}
  .search-title{font-size:clamp(36px,11vw,48px)}
  .big-search{font-size:16px;padding:13px}
  .info-card h1{font-size:clamp(36px,10vw,50px)}
}
@media (max-width:420px){
  .top-search{width:42vw;max-width:145px}
  .brand{max-width:42vw}
  .grid{grid-template-columns:1fr}
  .card{min-height:112px}
  .hero h1{font-size:clamp(36px,12.5vw,50px)}
  .hero-content{padding-top:48px}
  .eyebrow{font-size:11px}
}
@media (max-width:360px){
  .container{width:calc(100% - 20px)}
  .top-search{display:none}
  .brand{max-width:62vw}
  .nav-links{left:10px;right:10px}
}

/* Tablet landscape / portrait */
@media (min-width:641px) and (max-width:1024px){
  .grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .hero h1{font-size:clamp(46px,7vw,70px)}
  .article-card{padding:28px}
}

/* Touch devices: comfortable targets and no hover layout shifts */
@media (hover:none),(pointer:coarse){
  a,.btn,button,input,select,textarea{touch-action:manipulation}
  .btn{min-height:44px}
  .mobile-menu-toggle{min-height:44px}
}


/* ===== Professional AI Directory ===== */
.ai-directory .breadcrumbs{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;margin:0 0 10px}
.ai-directory .breadcrumbs a{color:#cfc7ff;font-weight:800}
.ai-directory .breadcrumbs a:hover{color:#fff}
.ai-directory-intro{font-size:17px!important;line-height:1.7;color:#aeb8ce!important;max-width:760px;margin:0 0 28px!important}
.ai-directory h2{padding-top:10px;border-bottom:1px solid var(--line);padding-bottom:12px}
.ai-directory h3{display:flex;align-items:center;gap:10px;margin:30px 0 14px!important;font-size:19px!important;line-height:1.2}
.ai-directory h3:before{content:"";width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));box-shadow:0 0 16px rgba(124,92,255,.35)}
.ai-directory .ai-tool-list{list-style:none;margin:0 0 20px;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.ai-directory .ai-tool-list li{margin:0;padding:0;min-width:0}
.ai-directory .ai-tool-list li a{display:flex;align-items:center;gap:12px;min-height:68px;padding:11px 13px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(145deg,rgba(255,255,255,.055),rgba(255,255,255,.02));color:#f4f6ff;font-weight:750;transition:transform .18s,border-color .18s,background .18s;overflow:hidden}
.ai-directory .ai-tool-list li a:hover{transform:translateY(-2px);border-color:rgba(124,92,255,.5);background:linear-gradient(145deg,rgba(124,92,255,.12),rgba(255,255,255,.035))}
.ai-directory .ai-tool-list li img{width:44px!important;height:44px!important;min-width:44px!important;max-width:44px!important;object-fit:contain!important;border-radius:11px!important;background:rgba(255,255,255,.07);padding:5px;display:block;flex:0 0 44px}
.ai-directory .ai-tool-list li a{overflow-wrap:anywhere}
@media(max-width:700px){.ai-directory .ai-tool-list{grid-template-columns:1fr;gap:8px}.ai-directory .ai-tool-list li a{min-height:64px}.ai-directory .ai-tool-list li img{width:40px!important;height:40px!important;min-width:40px!important;max-width:40px!important;flex-basis:40px}}