/* 4RD · safe technical editorial */
:root{--bg:#111310;--panel:#191c17;--panel2:#20241d;--paper:#f3f0e8;--muted:#a8ada0;--faint:#72796d;--lime:#d8f56a;--blue:#84b9ff;--amber:#e7ad54;--red:#ff7c6f;--line:#343a30;--mono:'Space Mono',monospace;--sans:'Inter',system-ui,sans-serif;--shadow:0 20px 60px #0005}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--paper);font-family:var(--sans);line-height:1.55}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.site-shell{display:flex;min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:245px;background:#0d0f0c;border-right:1px solid #242920;padding:31px 25px 27px;display:flex;flex-direction:column;z-index:10}.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.06em;font-size:25px}.brand-mark{font:700 11px var(--mono);letter-spacing:-.1em;color:var(--lime);border:1px solid var(--lime);padding:7px 5px 6px}.brand-name{font-size:25px}.brand-dot{color:var(--lime)}.side-kicker{font:10px var(--mono);letter-spacing:.13em;color:var(--faint);margin:65px 0 24px;line-height:1.8}.side-kicker span{color:#d7dfce88}.side-nav{display:grid;gap:4px}.side-nav a{display:flex;align-items:center;gap:13px;padding:11px 10px;color:#899184;font-size:12px;transition:.2s}.side-nav a span{font:10px var(--mono);color:#545d50}.side-nav a:hover,.side-nav a.active{background:#20261d;color:var(--paper)}.side-nav a.active{border-left:2px solid var(--lime);color:var(--lime)}.side-nav a.active span{color:var(--lime)}.side-bottom{margin-top:auto;color:var(--lime);font:10px var(--mono);letter-spacing:.08em;display:flex;align-items:center;gap:7px;flex-wrap:wrap}.side-bottom small{display:block;width:100%;color:var(--faint);font:10px var(--sans);letter-spacing:0}.pulse{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px #d8f56a18;animation:pulse 2.2s infinite}@keyframes pulse{50%{box-shadow:0 0 0 9px #d8f56a05}}
.main-content{margin-left:245px;width:calc(100% - 245px);overflow:hidden}.topbar{height:76px;border-bottom:1px solid #252b22;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(25px,5vw,78px);font-size:11px;color:var(--faint)}.breadcrumb span{color:var(--lime);font:700 12px var(--mono)}.breadcrumb i{padding:0 8px;color:#46503f;font-style:normal}.top-actions{display:flex;align-items:center;gap:21px}.search{border:1px solid #353d31;background:#171a15;display:flex;align-items:center;gap:8px;padding:6px 8px 6px 10px;color:var(--faint)}.search input{width:180px;border:0;outline:0;background:transparent;color:var(--paper);font-size:11px}.search kbd{font:9px var(--mono);border:1px solid #3a4436;padding:3px 5px;color:#687261}.version{font:10px var(--mono);color:var(--lime)}.mobile-menu{display:none;background:none;border:0;color:var(--paper);font-size:21px}
.hero{position:relative;min-height:552px;padding:106px clamp(25px,8vw,128px) 70px;background:radial-gradient(circle at 78% 18%,#36432a55 0,#111310 36%),linear-gradient(135deg,#171b14 0,#111310 57%)}.hero-grid{position:absolute;inset:0;background-image:linear-gradient(#d8f56a0d 1px,transparent 1px),linear-gradient(90deg,#d8f56a0d 1px,transparent 1px);background-size:58px 58px;mask-image:linear-gradient(90deg,black,transparent 70%);opacity:.45}.eyebrow,.section-number{position:relative;font:10px var(--mono);color:var(--lime);letter-spacing:.16em}.eyebrow{display:flex;align-items:center;gap:10px}.eyebrow-line{display:inline-block;width:32px;height:1px;background:var(--lime)}h1{position:relative;font-size:clamp(60px,9vw,128px);line-height:.86;letter-spacing:-.095em;margin:28px 0 28px;max-width:750px}h1 em{font-style:normal;color:var(--lime);font-size:.65em;letter-spacing:-.08em}.hero-mark{color:var(--lime);font-size:.56em;vertical-align:top;margin-left:6px}.hero-lead{position:relative;color:var(--muted);max-width:590px;font-size:16px;line-height:1.7;margin:0}.hero-ctas{position:relative;display:flex;gap:12px;margin-top:31px}.button{padding:12px 17px;border:1px solid #536047;font-size:12px;font-weight:600;display:inline-flex;gap:24px;align-items:center;transition:.2s}.button-primary{background:var(--lime);color:#10140d;border-color:var(--lime)}.button-primary:hover{background:#efffa7}.button-ghost{color:var(--paper)}.button-ghost:hover{border-color:var(--lime);color:var(--lime)}.hero-note{position:relative;display:flex;gap:12px;align-items:flex-start;margin-top:50px;max-width:680px;border-top:1px solid #30382c;padding-top:13px;font-size:11px;color:var(--faint)}.hero-note strong{color:var(--paper);font-weight:500}.note-icon{border:1px solid var(--faint);color:var(--lime);height:17px;width:17px;border-radius:50%;display:grid;place-items:center;font:10px var(--mono);flex:none}
.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#161914}.stat{padding:21px clamp(16px,4vw,60px);border-right:1px solid var(--line);display:flex;gap:14px;align-items:baseline}.stat:last-child{border:0}.stat strong{font:700 25px var(--mono);color:var(--paper)}.stat span{font-size:11px;color:var(--faint)}.stat-accent strong{color:var(--lime);font-size:17px}
.content-section{padding:108px clamp(25px,8vw,128px) 38px;max-width:1500px}.section-heading{max-width:760px;margin-bottom:43px}.section-number{margin-bottom:18px}.section-heading h2{font-size:clamp(34px,4vw,59px);line-height:1.02;letter-spacing:-.07em;margin:0 0 17px}.section-heading p{color:var(--muted);font-size:15px;max-width:640px;margin:0}.split-heading{display:grid;grid-template-columns:1fr 1fr;gap:70px;max-width:1050px}.split-heading>p{padding-top:34px}
.architecture-board{background:#151813;border:1px solid #323a2e;padding:25px;position:relative}.board-label,.tech-label,.card-tag,.flow-code,.demo-overline,.mini-title,.risk-id{font:10px var(--mono);letter-spacing:.11em;color:var(--faint)}.board-label{padding-bottom:23px;border-bottom:1px solid #30382c}.board-label span{color:#556050;margin-left:12px}.arch-row{display:flex;align-items:stretch;justify-content:center;max-width:950px;margin:28px auto}.arch-card{width:min(380px,42%);border:1px solid #374033;padding:24px 23px;position:relative;min-height:187px;background:#1b2019}.arch-card:before{content:'';position:absolute;top:-1px;left:-1px;width:38px;height:3px;background:var(--lime)}.klz-card:before{background:var(--blue)}.worker-card:before{background:#a6d4ff}.data-card:before{background:var(--amber)}.card-tag{color:var(--lime)}.klz-card .card-tag{color:var(--blue)}.data-card .card-tag{color:var(--amber)}.arch-icon{font-size:27px;line-height:1;color:var(--lime);margin:19px 0 10px}.klz-card .arch-icon{color:var(--blue)}.data-card .arch-icon{color:var(--amber)}.arch-card h3{font-size:18px;letter-spacing:-.04em;margin:0 0 5px}.arch-card p{font-size:12px;color:var(--muted);margin:0 0 18px;line-height:1.55}.tech-label{font-size:9px;color:#697564}.connector{position:relative;display:flex;align-items:center;justify-content:center;color:#65705e;font:9px var(--mono);text-transform:uppercase;letter-spacing:.08em}.connector-horizontal{width:19%;border-top:1px solid #59654e}.connector-horizontal:before,.connector-horizontal:after{content:'';position:absolute;width:5px;height:5px;border:1px solid var(--lime);border-radius:50%;background:#151813}.connector-horizontal:before{left:-3px}.connector-horizontal:after{right:-3px}.connector-vertical{height:34px;width:1px;border-left:1px solid #59654e;margin:-28px auto 0}.connector-vertical span{position:absolute;left:12px;top:11px;white-space:nowrap}.board-legend{display:flex;justify-content:flex-end;gap:17px;margin-top:24px;font-size:10px;color:var(--faint)}.legend-dot{display:inline-block;width:6px;height:6px;border-radius:50%;margin-right:6px}.lime{background:var(--lime)}.blue{background:var(--blue)}.amber{background:var(--amber)}
.flow-line{display:flex;align-items:stretch;gap:0;margin:45px 0 27px}.flow-step{flex:1;border:1px solid var(--line);padding:21px 18px;min-height:204px;background:#151813;position:relative}.flow-index{font:10px var(--mono);color:var(--lime)}.flow-symbol{font-size:27px;color:var(--lime);margin:23px 0 7px}.flow-step h3{font-size:16px;letter-spacing:-.03em;margin:0 0 6px}.flow-step p{color:var(--muted);font-size:12px;line-height:1.55;margin:0 0 16px}.flow-step code{font-family:var(--mono);color:#84917c}.flow-arrow{width:35px;display:grid;place-items:center;color:var(--lime);font-size:18px}.flow-code{color:#788476;font-size:9px}.explain-callout{border-left:2px solid var(--lime);background:#1b2118;padding:16px 19px;color:var(--muted);font-size:13px}.explain-callout strong{color:var(--lime);font-weight:600}
.module-tabs{border-bottom:1px solid var(--line);display:flex;gap:5px;margin-bottom:27px}.module-tab{background:none;color:var(--faint);border:0;border-bottom:2px solid transparent;padding:11px 19px;font-size:12px}.module-tab:hover,.module-tab.active{color:var(--lime);border-color:var(--lime)}.module-panel{display:none;background:#171b15;border:1px solid var(--line);padding:34px}.module-panel.active{display:block}.module-intro{display:flex;gap:27px;align-items:flex-start;border-bottom:1px solid var(--line);padding-bottom:28px}.big-module-num{font:32px var(--mono);color:var(--lime);opacity:.85}.module-intro h3{margin:0 0 7px;font-size:24px;letter-spacing:-.05em}.module-intro p{color:var(--muted);margin:0;font-size:13px;max-width:650px}.module-items{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px}.module-items>div{border-left:1px solid #3e4939;padding-left:15px}.module-items span{font:9px var(--mono);color:var(--lime);letter-spacing:.13em}.module-items h4{font-size:14px;margin:7px 0 5px}.module-items p{font-size:12px;color:var(--muted);margin:0}
.security-section{background:#151813;max-width:none}.risk-summary{display:flex;border:1px solid var(--line);margin-bottom:19px;max-width:790px}.risk-summary>div{padding:17px 24px;border-right:1px solid var(--line);display:flex;align-items:baseline;gap:10px}.risk-summary>div:last-child{border:0}.risk-summary strong{font:700 20px var(--mono)}.risk-summary span{font-size:11px;color:var(--faint)}.risk-high-text{color:var(--red)!important;font-size:14px!important}.risk-list{max-width:930px;display:grid;gap:9px}.risk-card{background:#1a1e18;border:1px solid var(--line);padding:19px 21px}.risk-card.high{border-left:2px solid var(--red)}.risk-card.medium{border-left:2px solid var(--amber)}.risk-card.low{border-left:2px solid var(--blue)}.risk-head{display:flex;align-items:center;gap:12px}.risk-level{font:9px var(--mono);letter-spacing:.1em;color:var(--red)}.medium .risk-level{color:var(--amber)}.low .risk-level{color:var(--blue)}.risk-id{margin-right:auto}.risk-toggle{border:1px solid #4a5546;color:var(--lime);background:none;width:24px;height:24px;line-height:18px}.risk-card h3{font-size:16px;margin:13px 0 6px;letter-spacing:-.02em}.risk-card>p{font-size:12px;color:var(--muted);margin:0}.risk-detail{display:none;grid-template-columns:130px 1fr;gap:14px;border-top:1px solid #30382c;margin-top:15px;padding-top:13px;font-size:12px}.risk-detail strong{font:10px var(--mono);color:var(--lime);letter-spacing:.08em}.risk-detail span{color:var(--muted)}.risk-card.open .risk-detail{display:grid}
.demo-section{padding-bottom:90px}.demo-window{border:1px solid #3e4a38;background:#10130f;box-shadow:var(--shadow);max-width:1100px}.demo-topbar{height:37px;border-bottom:1px solid #30382c;display:flex;align-items:center;gap:12px;padding:0 15px;color:#6b7566;font:9px var(--mono);letter-spacing:.08em}.window-dots{display:flex;gap:5px;margin-right:8px}.window-dots i{width:7px;height:7px;border-radius:50%;background:#59614f}.window-dots i:first-child{background:#d56b61}.window-dots i:nth-child(2){background:#c7a051}.demo-mode{color:var(--lime);margin-left:auto;border:1px solid #3f5330;padding:4px 7px}.demo-body{display:flex;min-height:415px}.demo-nav{width:146px;border-right:1px solid #2e362c;padding:20px 14px;display:flex;flex-direction:column;gap:11px;color:#6f7c69;font-size:10px}.demo-logo{color:var(--lime);font:700 13px var(--mono);margin-bottom:28px}.demo-nav-active{background:#29341f;color:var(--lime);padding:7px 8px;margin:0 -8px}.demo-main{padding:25px 28px;width:100%}.demo-header{display:flex;align-items:flex-start;justify-content:space-between}.demo-overline{color:var(--lime);font-size:9px}.demo-header h3{font-size:20px;margin:7px 0 24px;letter-spacing:-.04em}.demo-disabled{border:1px solid #414d3d;color:#566250;background:transparent;padding:9px 12px;font-size:10px}.demo-disabled:hover{color:var(--lime);border-color:var(--lime)}.demo-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.demo-metrics>div{background:#1a2117;padding:15px}.demo-metrics span,.demo-metrics small{display:block;font:9px var(--mono);color:#697763}.demo-metrics strong{display:block;font:26px var(--mono);margin:11px 0 5px}.demo-metrics small{color:#82a365}.demo-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:8px;margin-top:8px}.mini-panel{background:#1a2117;padding:15px}.mini-title{font-size:9px;color:#7c8975;border-bottom:1px solid #2c3828;padding-bottom:12px;margin-bottom:2px}.mini-title span{float:right;color:var(--lime)}.queue-row,.account-row{display:flex;align-items:center;gap:9px;padding:12px 0;border-bottom:1px solid #2a3326;font-size:10px}.queue-row:last-child,.account-row:last-child{border:0}.queue-row small{margin-left:auto;color:#7e9770;font:9px var(--mono)}.queue-dot,.online,.review{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:none}.queue-dot.amber{background:var(--amber)}.queue-dot.gray{background:#63705e}.account-row b{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:#33422a;color:var(--lime);font:9px var(--mono)}.account-row span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-row small{display:block;color:#778375;font-size:8px;margin-top:3px}.online{margin-left:auto}.review{background:var(--amber);margin-left:auto}.demo-footnote{max-width:1100px;border:1px solid #3c4b34;border-top:0;padding:15px 18px;color:#87967e;font-size:11px}.demo-footnote strong{color:var(--lime);font:10px var(--mono);margin:0 5px}.toast{position:fixed;right:22px;bottom:22px;background:var(--lime);color:#11160c;padding:12px 16px;font-size:12px;font-weight:600;transform:translateY(120px);transition:.25s;z-index:20}.toast.show{transform:translateY(0)}.footer{border-top:1px solid var(--line);padding:31px clamp(25px,8vw,128px);display:flex;align-items:center;gap:19px;color:var(--faint);font-size:11px}.footer-brand{display:flex;align-items:center;gap:10px;color:var(--paper);font-size:10px;font-family:var(--mono)}.footer p{margin:0}.footer-status{margin-left:auto;color:var(--lime);font:9px var(--mono)}
@media(max-width:900px){.sidebar{transform:translateX(-100%);transition:.25s;width:270px;box-shadow:var(--shadow)}.sidebar.open{transform:translateX(0)}.main-content{margin-left:0;width:100%}.mobile-menu{display:block}.topbar{padding:0 20px}.search kbd,.version{display:none}.hero{padding:80px 25px 55px}.content-section{padding:77px 25px 30px}.arch-row{flex-direction:column;gap:25px;align-items:center}.arch-card{width:min(100%,450px)}.connector-horizontal{width:1px;height:25px;border-top:0;border-left:1px solid #59654e}.connector-horizontal span{transform:rotate(90deg);white-space:nowrap}.connector-vertical{display:none}.stats-strip{grid-template-columns:repeat(2,1fr)}.stat{padding:16px 20px}.flow-line{display:grid;grid-template-columns:1fr;gap:0}.flow-arrow{width:100%;height:25px;transform:rotate(90deg)}.module-items,.demo-grid{grid-template-columns:1fr}.split-heading{display:block}.split-heading>p{padding-top:0;margin-top:18px}.demo-nav{display:none}.demo-body{min-height:auto}.demo-main{padding:20px}.footer{flex-wrap:wrap}.footer-status{margin-left:0;width:100%}}
@media(max-width:540px){.hero h1{font-size:62px}.hero-lead{font-size:14px}.hero-ctas{flex-direction:column;align-items:flex-start}.stats-strip{grid-template-columns:1fr 1fr}.stat{display:block}.stat strong,.stat span{display:block}.stat span{margin-top:5px}.board-legend{justify-content:flex-start;flex-wrap:wrap}.module-tabs{overflow:auto}.module-tab{white-space:nowrap;padding:10px 13px}.module-panel{padding:22px 18px}.module-intro{gap:14px}.module-intro h3{font-size:19px}.big-module-num{font-size:21px}.module-items{gap:18px}.risk-summary{overflow:auto}.risk-summary>div{display:block;padding:15px}.risk-summary span{display:block;margin-top:4px;white-space:nowrap}.demo-metrics{gap:4px}.demo-metrics>div{padding:11px 8px}.demo-metrics strong{font-size:19px}.demo-header h3{font-size:17px}.demo-disabled{font-size:9px;padding:7px}.hero-note{margin-top:35px}.footer{padding:28px 25px}.footer p{width:100%}}