:root{
  --bg:#0b0e13; --bg2:#10141c; --panel:#151a24; --panel2:#1a2130;
  --line:#242d40; --txt:#eef2f8; --mut:#98a3b8; --acc:#4f7cff; --acc2:#7aa2ff;
  --ok:#34d399; --warn:#fbbf24; --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--txt);font:14px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif}
a{color:var(--acc2);text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(11,14,19,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:18px;padding:12px 20px;max-width:1180px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--txt)}
.logo-mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--acc),#9b6bff);display:grid;place-items:center;font-size:16px}
.nav-links{display:flex;gap:16px;margin-left:12px}
.nav-links a{color:var(--mut);font-weight:500}
.nav-links a:hover{color:var(--txt)}
.pill{margin-left:auto;font-size:12px;color:var(--mut);border:1px solid var(--line);border-radius:999px;padding:5px 12px;background:var(--panel)}
.pill b{color:var(--ok)}
.btn{display:inline-block;background:var(--acc);color:#fff;border:0;border-radius:10px;padding:11px 18px;font-weight:700;cursor:pointer}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--txt)}
.btn:disabled{opacity:.55;cursor:wait}
.btn.small{padding:8px 12px;font-weight:600;font-size:13px}
/* hero */
.hero{padding:56px 0 28px;background:radial-gradient(800px 340px at 20% 0%,rgba(79,124,255,.18),transparent),radial-gradient(700px 300px at 85% 10%,rgba(155,107,255,.14),transparent)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.eyebrow{display:inline-block;font-size:12px;color:var(--acc2);border:1px solid var(--line);background:var(--panel);padding:5px 12px;border-radius:999px;margin-bottom:14px}
h1{font-size:42px;line-height:1.1;margin:0 0 12px}
.sub{color:var(--mut);font-size:16px;max-width:560px}
.cta-row{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.badge{font-size:12px;color:var(--mut);background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:5px 11px}
.hero-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.compare{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);min-height:300px;background:
  linear-gradient(45deg,#232a3b 25%,transparent 25%),linear-gradient(-45deg,#232a3b 25%,transparent 25%),
  linear-gradient(45deg,transparent 75%,#232a3b 75%),linear-gradient(-45deg,transparent 75%,#232a3b 75%);
  background-size:22px 22px;background-position:0 0,0 11px,11px -11px,-11px 0}
.compare img{width:100%;display:block}
.compare .tag{position:absolute;top:10px;font-size:11px;background:rgba(0,0,0,.6);padding:4px 10px;border-radius:999px}
.hero-note{color:var(--mut);font-size:12px;margin-top:10px}
/* sections */
section.block{padding:34px 0}
.sec-title{font-size:24px;margin:0 0 6px}
.sec-sub{color:var(--mut);margin:0 0 18px}
/* tool */
.tool-grid{display:grid;grid-template-columns:330px 1fr;gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
label.lbl{display:block;font-size:12px;color:var(--mut);margin:12px 0 5px}
select,input[type=text]{width:100%;background:#0c1017;color:var(--txt);border:1px solid var(--line);border-radius:9px;padding:9px}
input[type=range]{width:100%}
#drop{border:1.6px dashed #35405a;border-radius:12px;padding:20px;text-align:center;color:var(--mut);cursor:pointer;background:#0c1017}
#drop.over{border-color:var(--acc);color:var(--txt)}
#drop strong{color:var(--txt)}
.views{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.view{min-height:300px;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#0c1017}
.view img{max-width:100%;max-height:58vh;display:block}
.view.checker{background-color:#0c1017;background-image:linear-gradient(45deg,#232a3b 25%,transparent 25%),linear-gradient(-45deg,#232a3b 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#232a3b 75%),linear-gradient(-45deg,transparent 75%,#232a3b 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0}
.view.white{background:#fff !important}
.view-h{font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.chip{background:transparent;border:1px solid var(--line);color:var(--txt);border-radius:999px;padding:7px 13px;cursor:pointer;font-size:13px}
.chip.active{border-color:var(--acc);background:rgba(79,124,255,.15)}
#status{color:var(--mut);font-size:12.5px;margin-top:10px;white-space:pre-wrap;min-height:36px}
/* compare slider */
.cmp{position:relative;overflow:hidden;border-radius:12px;border:1px solid var(--line)}
.cmp img{display:block;width:100%}
.cmp .after{position:absolute;inset:0;overflow:hidden}
.cmp input{position:absolute;inset:0;width:100%;opacity:0;cursor:ew-resize}
.cmp .handle{position:absolute;top:0;bottom:0;width:2px;background:#fff;left:50%}
/* gallery */
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.gal-item{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--panel2)}
.gal-item img{width:100%;height:120px;object-fit:contain;background:repeating-conic-gradient(#232a3b 0 25%,#12151d 0 50%) 0 0/20px 20px;display:block}
.gal-item .meta{padding:8px 10px;font-size:12px;color:var(--mut);display:flex;justify-content:space-between;gap:6px;align-items:center}
.gal-item button{width:auto;margin:0;padding:5px 9px;font-size:12px}
/* features */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.feat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.feat h3{margin:6px 0;font-size:15px}
.feat p{color:var(--mut);margin:0;font-size:13.5px}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.step .n{width:28px;height:28px;border-radius:50%;background:var(--acc);display:grid;place-items:center;font-weight:800}
/* faq */
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:10px}
summary{cursor:pointer;font-weight:700}
details p{color:var(--mut)}
footer{border-top:1px solid var(--line);padding:22px 0;color:var(--mut);font-size:13px}
footer .container{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
@media(max-width:980px){
  .hero-grid,.tool-grid{grid-template-columns:1fr}
  h1{font-size:32px}
  .views{grid-template-columns:1fr}
  .feat-grid,.steps{grid-template-columns:1fr}
  .nav-links{display:none}
}
</style>