:root{
  --bg:#08090d; --panel:#0d0f15; --panel2:#12151d; --line:#252833; --line2:#353947;
  --text:#f5f6f8; --muted:#9da3b1; --red:#ef233c; --red2:#a80f22; --safe:#44b96d; --euclid:#d8a732; --keter:#d95454;
  --shadow:0 24px 80px rgba(0,0,0,.45); --radius:16px; --sidebar:280px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:26px 26px;mask-image:linear-gradient(to bottom,black,transparent 85%)}
a{color:inherit;text-decoration:none}.layout{display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;border-right:1px solid var(--line);background:rgba(8,9,13,.93);backdrop-filter:blur(16px);padding:28px 20px;z-index:20}.brand{display:flex;align-items:center;gap:12px;padding:0 8px 24px;border-bottom:1px solid var(--line)}.brand-mark{width:42px;height:42px;border:1px solid rgba(239,35,60,.65);border-radius:10px;display:grid;place-items:center;box-shadow:inset 0 0 25px rgba(239,35,60,.12);background:#0b0d12 url("../img/logo-nn.png") center/78% no-repeat}.brand-mark:after{content:""}.brand strong{display:block;letter-spacing:.08em}.brand small{color:var(--red);font-weight:800;letter-spacing:.12em}.nav{display:grid;gap:8px;margin-top:24px}.nav a{display:flex;gap:12px;align-items:center;padding:13px 14px;border-radius:10px;color:#c5c8d0;border:1px solid transparent}.nav a:hover,.nav a.active{background:#11131a;border-color:#1c2029;color:white}.nav a.active{box-shadow:inset 3px 0 0 var(--red)}.nav-dot{width:8px;height:8px;border-radius:2px;border:1px solid #727887}.nav a.active .nav-dot{border-color:var(--red);background:var(--red)}.sidebar-foot{position:absolute;left:20px;right:20px;bottom:24px;color:var(--muted);font-size:12px;line-height:1.5}.main{min-width:0}.topbar{position:sticky;top:0;z-index:15;background:rgba(8,9,13,.8);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:14px clamp(20px,4vw,58px);display:flex;align-items:center;justify-content:space-between;gap:18px}.topbar .mobile-brand{display:none;font-weight:900;letter-spacing:.08em}.menu-btn{display:none;background:#11131a;border:1px solid var(--line);color:white;border-radius:9px;padding:9px 11px}.top-search{flex:1;max-width:520px;display:flex;gap:8px;margin:0 18px}.top-search input{width:100%;min-width:180px;border:1px solid var(--line2);background:#0e1016;color:white;border-radius:9px;padding:10px 13px;font-size:13px;outline:none}.top-search input:focus{border-color:rgba(239,35,60,.7);box-shadow:0 0 0 3px rgba(239,35,60,.08)}.top-search button{border:1px solid var(--line2);background:#11131a;color:#cdd0d8;border-radius:9px;padding:0 12px;cursor:pointer}.top-search button:hover{color:white;border-color:#555b69}.toplinks{display:flex;gap:8px}.toplinks a{padding:8px 11px;border-radius:8px;color:var(--muted);font-size:13px}.toplinks a:hover{color:white;background:#11131a}.content{width:min(1180px,calc(100% - 44px));margin:0 auto;padding:52px 0 88px}.hero{padding:36px 0 28px}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.18em;color:var(--red);font-weight:800}.hero h1{font-size:clamp(36px,7vw,72px);line-height:.98;margin:10px 0 16px;letter-spacing:-.04em}.hero p{max-width:780px;color:var(--muted);font-size:17px;line-height:1.7}.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.pill{border:1px solid var(--line2);background:#101219;color:#c9ccd4;border-radius:999px;padding:8px 11px;font-size:12px}.pill.red{border-color:rgba(239,35,60,.45);color:#ff7384}.toc{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px}.toc a{font-size:12px;color:#b9bdc7;border:1px solid var(--line);padding:8px 10px;border-radius:8px;background:#0d0f14}.toc a:hover{border-color:#555b69;color:white}.rule-section{margin:0 0 26px;border:1px solid var(--line2);border-radius:var(--radius);overflow:hidden;background:rgba(12,14,20,.88);box-shadow:var(--shadow);scroll-margin-top:132px}.section-head{display:flex;gap:16px;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,rgba(239,35,60,.095),transparent 34%)}.section-no{font-size:13px;font-weight:900;color:var(--red);min-width:28px}.section-head h2{margin:0;font-size:21px;letter-spacing:-.02em}.rule-items{display:grid}.rule-item{padding:20px 22px;border-bottom:1px solid var(--line);scroll-margin-top:138px}.rule-item:last-child{border-bottom:0}.rule-title{display:flex;gap:12px;align-items:center;margin-bottom:10px}.rule-number{font:800 12px/1 ui-monospace,SFMono-Regular,Menlo,monospace;color:#ff6b7c;border:1px solid rgba(239,35,60,.3);background:rgba(239,35,60,.05);border-radius:7px;padding:6px 7px;white-space:nowrap}.rule-title h3{margin:0;font-size:16px}.tag{margin-left:auto;font-size:10px;font-weight:900;letter-spacing:.1em;border-radius:999px;padding:6px 8px;border:1px solid}.tag.safe{color:#7be39c;border-color:rgba(68,185,109,.45);background:rgba(68,185,109,.08)}.tag.euclid{color:#efca67;border-color:rgba(216,167,50,.45);background:rgba(216,167,50,.08)}.tag.keter{color:#ff8383;border-color:rgba(217,84,84,.45);background:rgba(217,84,84,.08)}.rule-body{color:#c8cbd3;line-height:1.72;font-size:14px}.rule-body p{margin:9px 0}.rule-body ul{margin:10px 0 4px;padding-left:20px}.rule-body li{margin:6px 0}.rule-body strong{color:white}.no-results{display:none;padding:30px;border:1px dashed var(--line2);border-radius:12px;color:var(--muted);text-align:center}.home-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:28px}.home-card{border:1px solid var(--line2);border-radius:16px;background:#0d0f15;padding:28px;position:relative;overflow:hidden}.home-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--red)}.home-card h2{margin:0 0 10px;font-size:25px}.home-card p{color:var(--muted);line-height:1.7}.btn{display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:10px 13px;border-radius:9px;background:#151822;border:1px solid #2a2e3a;font-size:13px;font-weight:750}.btn:hover{border-color:#555b69}.notice{border:1px solid rgba(239,35,60,.25);background:rgba(239,35,60,.05);padding:16px 18px;border-radius:12px;color:#d7d9df;line-height:1.6}.legal{max-width:900px}.legal h2{margin-top:36px}.legal p,.legal li{color:#c9ccd4;line-height:1.75}.placeholder{display:inline-block;border:1px dashed #d8a732;background:rgba(216,167,50,.07);color:#f1cf73;padding:1px 5px;border-radius:4px}.footer{border-top:1px solid var(--line);padding:26px 0;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer a:hover{color:white}.backtop{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border-radius:11px;border:1px solid var(--line2);background:#11131a;color:#ddd;display:grid;place-items:center;opacity:0;pointer-events:none;transition:.2s}.backtop.show{opacity:1;pointer-events:auto}.mobile-overlay{display:none}
@media(max-width:900px){.layout{grid-template-columns:1fr}.sidebar{position:fixed;left:-292px;width:280px;transition:.22s}.sidebar.open{left:0}.mobile-overlay{display:block;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:18;opacity:0;pointer-events:none;transition:.2s}.mobile-overlay.show{opacity:1;pointer-events:auto}.topbar .mobile-brand,.menu-btn{display:block}.toplinks{display:none}.rules-topbar{flex-wrap:wrap}.rules-topbar .top-search{order:3;flex-basis:100%;max-width:none;margin:4px 0 0}.content{width:min(100% - 28px,780px);padding-top:30px}.home-grid{grid-template-columns:1fr}.hero h1{font-size:42px}}
@media(max-width:560px){.top-search button{padding:0 10px;font-size:12px}.rule-item,.section-head{padding-left:16px;padding-right:16px}.rule-title{align-items:flex-start;flex-wrap:wrap}.tag{margin-left:0}.hero p{font-size:15px}.content{width:calc(100% - 20px)}}