:root{font-family:Arial,Helvetica,sans-serif;color:#edf2f7;background:#0c1118;font-synthesis:none;--yellow:#fccb06;--panel:#141d29;--line:#293748;--muted:#b3c0d0;--bg:#0c1118}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a.primary,a.secondary{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--line);border-radius:6px;color:#edf2f7;background:#1a2636;padding:11px 15px;font-size:14px;text-decoration:none;cursor:pointer}button:hover,a.primary:hover{filter:brightness(1.1)}button:disabled,.disabled{opacity:.5;cursor:default;pointer-events:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #79c9ed;outline-offset:3px}.primary{background:var(--yellow)!important;color:#19180b!important;border-color:var(--yellow)!important;font-weight:700}.secondary{background:transparent!important}.text-button{background:transparent;border-color:transparent;padding:8px}.icon-button{padding:11px}.large{padding:15px 20px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:22px max(24px,calc((100vw - 1200px)/2));border-bottom:1px solid var(--line);background:#101720}.brand{background:transparent;border:0;padding:0;gap:20px;text-align:left}.brand img{width:190px;background:#fff;padding:8px;border-radius:3px}.brand>span{font:15px monospace;letter-spacing:2px;color:var(--yellow)}.brand-small{display:block;color:#c0cad7;font-size:11px;margin-top:5px;letter-spacing:3px}.top-links{display:flex;align-items:center;gap:16px}.identity{display:flex;align-items:center;gap:10px;font-size:14px}.identity small{display:block;font-size:11px;color:var(--muted);margin-top:5px}.avatar{width:36px;height:36px;display:grid;place-items:center;border:1px solid #685d2a;border-radius:50%;color:var(--yellow);background:#302911}.main-nav{display:flex;gap:10px;padding:12px max(24px,calc((100vw - 1200px)/2));border-bottom:1px solid var(--line);flex-wrap:wrap}.main-nav button{background:transparent;border-color:transparent;color:var(--muted)}.main-nav .active{background:#342e10;border-color:#342e10;color:var(--yellow)}main{max-width:1200px;margin:auto;padding:40px 24px 70px;min-height:60vh}h1{font-size:44px;line-height:1.12;letter-spacing:-1.6px;margin:16px 0 20px;color:#f0f4f8}h2{font-size:25px;line-height:1.3;letter-spacing:-.6px;margin:13px 0}h3{font-size:18px;margin:13px 0}p{color:var(--muted);font-size:15px;line-height:1.7;margin:12px 0 20px}.small,small{font-size:12px;line-height:1.6;color:var(--muted)}small{display:block}.eyebrow{font:11px/1.6 monospace;letter-spacing:1.6px;color:var(--yellow)}.yellow{color:var(--yellow)}.muted{color:var(--muted);font-size:13px}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:55px;align-items:center;padding:25px 0 45px}.hero h1{font-size:53px;line-height:1.08}.hero em{font-style:normal;color:var(--yellow)}.intro{max-width:510px;font-size:17px}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:18px 0}.hero-meta{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:12px;margin-top:24px}.status-dot{display:inline-block;width:7px;height:7px;background:#7bd8ae;border-radius:50%;margin-right:8px}.range-art{background:radial-gradient(ellipse at center,#152531 0,#0b121b 75%);border:1px solid var(--line);border-radius:10px;padding:22px;box-shadow:0 25px 60px #0003}.terminal-top{display:flex;gap:6px;align-items:center;font-size:11px;color:#acbac9;padding-bottom:17px;border-bottom:1px solid #233344}.terminal-top>span{width:7px;height:7px;border-radius:50%;background:#425363}.terminal-top code{margin-left:10px;font-size:11px;color:var(--yellow)}.industrial-grid{display:flex;align-items:center;justify-content:space-between;gap:6px;margin:25px 0}.range-node{display:flex;align-items:center;flex-direction:column;gap:12px;background:#172738;border:1px solid #33465b;padding:18px 7px;border-radius:7px;flex:1}.range-node svg{color:var(--yellow)}.range-node span{font:9px monospace;letter-spacing:.6px}.connection{height:1px;background:#52718a;width:16px}.tanks{display:flex;align-items:center;justify-content:center;gap:0;margin:20px 0 24px}.tank{width:72px;height:104px;border:2px solid #729bb0;border-radius:10px 10px 20px 20px;overflow:hidden;background:#14232e;display:flex;align-items:end}.tank div{width:100%;height:56%;background:#286268}.tank.second div{height:37%}.pipe{width:64px;height:5px;background:#7099a6}.terminal-lines{font:11px/2.2 monospace;color:#b6c7d6}.terminal-lines strong{color:#e3edf4;font-weight:400;float:right}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:22px 0 50px}.feature{padding:24px;border-top:1px solid #38495b;background:linear-gradient(145deg,#15202c,#0e1620)}.feature-top{display:flex;justify-content:space-between;align-items:center}.feature-top span{font:10px monospace;letter-spacing:1px;color:var(--yellow)}.feature-top svg{width:21px;color:#8c9eb2}.feature p{font-size:14px;margin-bottom:0}.section-heading,.title-row{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.section-heading{margin:35px 0 20px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:26px}.page-title{margin:6px 0 35px}.page-title p{max-width:660px}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:24px}.access-panel{padding:36px}.big-icon{width:32px;height:32px;color:var(--yellow);margin-bottom:10px}.divider{height:1px;background:var(--line);margin:28px 0}.tag{display:inline-block;color:var(--yellow);background:#342e10;border:1px solid #54491d;border-radius:4px;padding:6px 10px;font-size:11px;line-height:1.4}.tag.neutral{background:#1b2a3b;color:#bccddd;border-color:#334458}.price-inline{font-size:25px;font-weight:700}.price-inline span{font-size:14px;color:var(--muted);font-weight:400}.development{padding:18px;border:1px dashed #625522;color:#ffe796;margin-top:25px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}.area-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.area-card{border:1px solid #2b3c4f;border-radius:9px;overflow:hidden;background:var(--panel)}.area-visual{height:140px;padding:24px;display:flex;flex-direction:column;gap:16px;position:relative;background:repeating-linear-gradient(0deg,transparent,transparent 23px,#30405045 24px),repeating-linear-gradient(90deg,transparent,transparent 23px,#30405045 24px),linear-gradient(110deg,#172937,#0d171f)}.area-visual svg{color:var(--yellow)}.area-visual>span{font:10px monospace;letter-spacing:1px;color:#ccd6e1}.area-corner{position:absolute;right:25px;top:23px;font:28px/1.2 monospace;color:#738391}.area-content{padding:26px}.area-content h2{font-size:24px}.area-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:25px}.progress{height:6px;border-radius:5px;background:#293748;overflow:hidden;margin:12px 0}.progress span{height:100%;display:block;background:var(--yellow)}.progress-label{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}.progress-label strong{color:#eef3f7;font-weight:400}.empty{text-align:center;padding:45px}.empty>svg{color:var(--yellow);width:28px;height:28px}.permission-row{display:flex;flex-direction:column;gap:8px;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}.permission-row:last-child{border:0}.permission-row span{color:var(--muted)}.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-bottom:25px}.breadcrumb button{background:transparent;border:0;padding:0;font-size:12px}.course-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:35px}.course-index{align-self:start;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:20px}.course-index>.eyebrow{margin-bottom:20px}.course-index button{width:100%;margin-bottom:9px;justify-content:start;text-align:left;background:transparent;border-color:transparent;line-height:1.4;padding:12px 8px}.course-index button svg{flex-shrink:0;color:#8c9fb3}.course-index button small{font:9px monospace;letter-spacing:.8px;margin-bottom:5px}.course-index .selected{background:#342e10;border-color:#625421;color:var(--yellow)}.course-index .selected svg{color:var(--yellow)}.lesson-body h1{font-size:34px}.markdown{line-height:1.8}.markdown h1{font-size:27px;letter-spacing:-.5px}.markdown h2{font-size:21px}.markdown p,.markdown li{font-size:15px;color:#c2cedc}.markdown a{color:#91d0f1}.markdown pre{padding:18px;background:#070d14;overflow:auto;border-radius:5px}.markdown blockquote{border-left:3px solid var(--yellow);padding-left:18px}.report-panel{margin-top:30px;background:#111b26;border-top:1px solid #35465a;padding:22px}.report-panel>label{font-weight:700;margin-bottom:12px}.lab-panel{border:1px solid var(--line);border-radius:9px;padding:25px;margin-top:30px;background:#111b27}.lab-info{display:flex;gap:22px;flex-wrap:wrap;margin:18px 0;color:var(--muted);font:12px monospace}.lab-info span{display:flex;align-items:center;gap:8px}.lab-frame{width:100%;height:600px;background:#080f17;border:1px solid var(--line);border-radius:5px}.global-warning{display:flex;gap:16px;align-items:center;justify-content:center;flex-wrap:wrap;padding:14px 24px;background:#40330c;color:#ffeb9a;border-bottom:1px solid #6b5724;font-size:14px}.notice{max-width:1152px;margin:20px auto 0;padding:14px 18px;border-radius:6px;display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:14px;line-height:1.6}.notice button{background:transparent;color:inherit;border:0;padding:0;font-size:20px}.notice.error{background:#412329;color:#ffd2d7;border:1px solid #79424c}.notice.success{background:#15332c;color:#b3ead0;border:1px solid #2a5e4c}.notice.neutral{background:#28303b;color:#d0dbe8;margin:18px 0;border:1px solid #435265}.error-text{color:#ffb5bf}.tabs{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:28px}.tabs button{background:transparent;color:var(--muted)}.tabs .selected{background:#342e10;color:var(--yellow);border-color:#625421}label{display:block;font-size:13px;color:#c3cfde;margin:17px 0 7px}input,textarea,select{display:block;width:100%;background:#0b121c;color:#eff3f8;border:1px solid #495b72;border-radius:5px;padding:12px;margin-top:8px;font-size:16px}textarea{resize:vertical;line-height:1.6}label.checkbox{display:flex;gap:10px;align-items:center;line-height:1.6}label.checkbox input{width:18px;height:18px;margin:0}.price{font-size:48px;font-weight:700;letter-spacing:-2px;margin-top:24px}.price-panel ul{list-style:none;padding:0}.price-panel li{border-bottom:1px solid var(--line);padding:14px 0;font-size:14px}.editor{margin:24px 0}.content-area{margin-top:22px}.course-admin{padding:18px 0 0;margin-top:18px;border-top:1px solid var(--line)}.course-admin h3 small{display:inline;font-size:12px;font-weight:400}.lesson-admin{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:8px 0;font-size:13px;color:var(--muted)}.grant-fields{display:grid;grid-template-columns:1fr 1fr 150px;gap:18px}.table-wrap{overflow-x:auto;margin-top:25px;border:1px solid var(--line);border-radius:8px}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left;background:#101924}th,td{padding:16px;border-bottom:1px solid var(--line);vertical-align:top}th{font-weight:400;color:#a9bacd;background:#162232}td select{min-width:130px;font-size:13px;margin:0;padding:8px}td .actions{margin:0}td button{font-size:12px;padding:8px 10px}.audit-detail{max-width:400px;overflow-wrap:anywhere}.lab-admin-summary{display:grid;grid-template-columns:1fr 1fr;gap:24px}footer{border-top:1px solid var(--line);padding:30px max(24px,calc((100vw - 1152px)/2));background:#101720}footer>div{display:flex;gap:20px;flex-wrap:wrap;align-items:center}footer strong{font-size:13px;letter-spacing:1px}footer>div>span{font:11px monospace;letter-spacing:1px;color:var(--yellow)}footer p{font-size:12px;margin-bottom:12px}@media(max-width:900px){.hero{gap:25px}.hero h1{font-size:42px}.brand img{width:160px}.brand>span{font-size:12px}.topbar{padding:18px 24px}.course-layout{grid-template-columns:200px 1fr;gap:22px}.grant-fields{grid-template-columns:1fr 1fr}.features{gap:12px}.range-node span{font-size:8px}}@media(max-width:680px){.hero,.two-columns,.features,.area-grid,.course-layout,.lab-admin-summary{grid-template-columns:1fr}.hero{padding-top:10px}.hero h1{font-size:43px}.hero .range-art{margin-top:10px}.hero .intro{font-size:16px}main{padding:28px 18px 45px}.topbar{padding:16px 18px;gap:14px;flex-wrap:wrap}.brand img{width:145px}.brand{gap:12px}.top-links{gap:10px}.top-links>.text-button{display:none}.identity{font-size:12px}.identity .avatar{display:none}.brand-small{font-size:9px}.main-nav{padding:10px 12px;gap:3px}.main-nav button{font-size:12px;padding:10px 8px}.main-nav button svg{width:14px}.features{margin-bottom:35px}.feature{padding:20px}.panel,.access-panel{padding:23px}h1{font-size:34px}.page-title{margin-bottom:25px}.area-content{padding:23px}.grant-fields{grid-template-columns:1fr}.course-index{display:flex;gap:6px;flex-wrap:wrap}.course-index>.eyebrow{width:100%;margin-bottom:8px}.course-index button{width:auto;flex:1 1 140px;margin:0;font-size:12px}.course-index button small{font-size:9px}.lesson-body h1{font-size:29px}.report-panel,.lab-panel{padding:20px}.notice{margin:16px 18px 0}.section-heading{gap:8px}.lab-frame{height:540px}.price{font-size:42px}.terminal-lines{font-size:10px}.terminal-lines strong{float:none;display:block}.tabs button{font-size:12px;padding:10px}.global-warning{justify-content:start;padding:15px 18px}footer{padding:25px 18px}}.notice.warning{background:#453813;color:#fff1b6;border:1px solid #b69c31;margin:15px 0;padding:16px;line-height:1.6}