@import "https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@600;700;800;900&family=DM+Sans:wght@300;400;500;700&family=Permanent+Marker&display=swap";
@import "https://cdn.jsdelivr.net/npm/@tabler/icons-webfont@3.24.0/dist/tabler-icons.min.css";
.ff-shell{--bg:#0d0d0d;--surface:#161616;--card:#1a1a1a;--line:#2a2a2a;--fg:#f0ede8;--muted:#8a8480;--yellow:#f5c518;--yellow-deep:#c89100;--yellow-shadow:#5d4200;--steel:#4a9ebb;--red:#dc2626;--red-bright:#d8442f;--green:#54c06a;--paper:#ece2cb;--paper-2:#ddcfb1;--ink:#191510;--paper-fiber:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='f'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.045 0.09' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23f)'/%3E%3C/svg%3E");--metal-noise:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='m'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.012 0.5' numOctaves='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23m)'/%3E%3C/svg%3E");--grit:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");width:min(460px,100vw);min-height:100vh;color:var(--fg);background:linear-gradient(#0a0a0a,#121212 55%,#070707);margin:0 auto;font-family:DM Sans,system-ui,sans-serif;position:relative;overflow-x:hidden}.ff-shop-bg,.ff-grit{pointer-events:none;position:absolute;inset:0}.ff-shop-bg{opacity:.7;background:radial-gradient(circle at 20% 0,#f5c51814,#0000 40%),radial-gradient(circle at 90% 60%,#5050502e,#0000 20%)}.ff-grit{opacity:.05;mix-blend-mode:overlay;background-image:var(--grit)}.ff-topbar{z-index:2;background:linear-gradient(#1f1f1f,#0d0d0d);border-bottom:1px solid #000;justify-content:space-between;align-items:center;gap:12px;padding:18px 16px 10px;display:flex;position:relative;overflow:hidden}.ff-brand-wrap{z-index:2;flex-direction:column;display:flex;position:relative}.ff-topbar:before{content:"";background:repeating-linear-gradient(45deg, var(--yellow) 0 11px, #111 11px 22px);opacity:.92;height:5px;position:absolute;top:0;left:0;right:0}.ff-topbar:after{content:"";background-image:var(--metal-noise);opacity:.05;mix-blend-mode:overlay;pointer-events:none;position:absolute;inset:0}.ff-brand{letter-spacing:-.5px;text-transform:uppercase;color:#fff;text-shadow:0 1px #000;font-family:Barlow Condensed,sans-serif;font-size:30px;font-weight:900;line-height:1;text-decoration:none;position:relative}.ff-brand span{color:var(--yellow)}.ff-brand .ff-tm{vertical-align:super;color:var(--muted);text-shadow:none;margin-left:2px;font-size:.46em;font-weight:700}.ff-tagline{color:var(--muted);text-transform:uppercase;letter-spacing:.6px;margin-top:4px;font-size:10px;position:relative}.ff-topbar-actions{z-index:2;flex:none;align-items:center;gap:8px;display:flex;position:relative}.ff-iconbtn{border:1px solid var(--line);width:38px;height:38px;color:var(--muted);cursor:pointer;background:#ffffff08;border-radius:9px;flex:none;justify-content:center;align-items:center;text-decoration:none;transition:color .15s,border-color .15s,background .15s;display:inline-flex}.ff-iconbtn i{font-size:20px}.ff-iconbtn:hover{color:var(--yellow);background:#f5c5180f;border-color:#f5c51866}.ff-screen{z-index:2;padding:12px 16px 100px;position:relative}h1,h2,h3,.bay-title,.board-title{text-transform:uppercase;letter-spacing:.4px;font-family:Barlow Condensed,sans-serif}.ff-screen>*{opacity:0;animation:.5s cubic-bezier(.2,.7,.3,1) forwards 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Condensed;font-size:22px;font-weight:900}.streak{color:var(--yellow);text-align:right;font-family:Barlow Condensed;font-size:18px;font-weight:900}.bar{background:#2a2a2a;border-radius:999px;height:8px;margin-top:10px;overflow:hidden}.bar>span{background:linear-gradient(90deg, var(--yellow), #ffdf4d);border-radius:999px;width:0;height:100%;transition:width 1s cubic-bezier(.2,.7,.3,1) .3s;display:block}.bar-label{color:var(--muted);margin-top:6px;font-size:12px}.ff-paper{color:var(--ink);background:radial-gradient(130% 90% at 50% 0%, #f4ecd8 0%, var(--paper) 48%, var(--paper-2) 100%);border-top:1px solid #ffffff59;border-radius:6px;padding:18px 17px 16px;transition:transform .18s,box-shadow .18s;position:relative;overflow:hidden;box-shadow:0 10px 22px #00000073,inset 0 0 0 1px #78643c2e}.ff-paper:before{content:"";pointer-events:none;background-image:var(--paper-fiber);opacity:.5;mix-blend-mode:multiply;background-size:300px;position:absolute;inset:0}.ff-paper:after{content:"";pointer-events:none;background:radial-gradient(40px 22px at 78% 88%,#0000 60%,#78501e29 62%,#0000 70%),radial-gradient(60px 50px at 16% 24%,#6e50231a,#0000 70%),radial-gradient(80px 60px at 90% 60%,#6e502317,#0000 72%);border-radius:6px;position:absolute;inset:0;box-shadow:inset 0 -26px 40px #3c2d0f29,inset 22px 0 34px #3c2d0f17,inset -22px 0 34px #3c2d0f17}.ff-paper>*{z-index:1;position:relative}a.ff-paper{text-decoration:none;display:block}a.ff-paper:hover{transform:translateY(-2px);box-shadow:0 16px 30px #00000080,inset 0 0 0 1px #78643c2e}.ff-pin{z-index:5;background:radial-gradient(circle at 35% 30%,#ff6a5a,#a11d12 70%,#5e0e08);border-radius:50%;width:14px;height:14px;position:absolute;box-shadow:0 2px 3px #00000080}.ff-pin.l{top:12px;left:14px}.ff-pin.r{top:12px;right:14px}.ff-marker{color:#181206;font-family:Permanent Marker,cursive}.ff-hero{margin-bottom:13px}.ff-hero .fhead{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.ff-hero .title{color:#181206;padding-left:4px;font-family:Permanent Marker,cursive;font-size:25px;line-height:1}.ff-hero .uline{margin:2px 0 0 4px;display:block}.ff-hero .uline path{stroke-dasharray:200;stroke-dashoffset:200px;animation:1s .45s forwards ffDraw}@keyframes ffDraw{to{stroke-dashoffset:0}}.ff-hero .flag{color:var(--red);text-align:right;font-family:Permanent Marker,cursive;font-size:12px;line-height:1.05;transform:rotate(-5deg)}.ff-hero .cat{color:#a51712;letter-spacing:.6px;text-transform:uppercase;align-items:center;gap:5px;margin-top:12px;font-family:Barlow Condensed;font-size:12px;font-weight:800;display:flex}.ff-scenario{text-transform:uppercase;letter-spacing:.3px;color:#171206;margin:8px 2px 0;font-family:Barlow 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ease-in-out infinite ffBreathe;display:flex;position:relative;overflow:hidden}@keyframes ffBreathe{0%,to{box-shadow:0 4px 0 var(--yellow-shadow),0 7px 14px #00000059,inset 0 1px 0 #ffffff8c}50%{box-shadow:0 4px 0 var(--yellow-shadow),0 7px 22px #f5c51866,inset 0 1px 0 #ffffff8c}}.ff-cta:after{content:"";background:linear-gradient(100deg,#0000,#ffffff8c,#0000);width:45%;height:100%;animation:3.6s ease-in-out infinite ffSheen;position:absolute;top:0;left:-60%;transform:skew(-20deg)}@keyframes ffSheen{0%,60%{left:-60%}85%,to{left:130%}}.ff-cta:active{box-shadow:0 1px 0 var(--yellow-shadow), 0 3px 8px #0006, inset 0 1px 0 #ffffff8c;transform:translateY(3px)}.ff-cta i{font-size:22px;position:relative}.ff-hero-done .done-check i{color:var(--green);font-size:30px}.ff-next{color:var(--muted);align-items:center;gap:6px;margin:6px 2px 2px;font-size:13px;font-weight:600;display:flex}.ff-next i{color:var(--green);font-size:15px}.ff-cta.ghost{color:var(--fg);border:1px solid var(--line);box-shadow:none;background:#ffffff05;font-size:17px;animation:none}.ff-cta.ghost:after{display:none}.ff-cta.ghost:active{box-shadow:none;transform:translateY(2px)}.ff-cta.ghost i{font-size:18px}.ff-cont{align-items:center;gap:12px;margin:0 0 6px;padding:12px 14px;display:flex}.ff-cont .thumb{color:#9a854f;background:linear-gradient(135deg,#3a3326,#1a1610);border:1px solid #6a5b3a;border-radius:5px;flex:none;justify-content:center;align-items:center;width:58px;height:50px;display:flex;box-shadow:inset 0 0 14px #0009}.ff-cont .thumb i{font-size:24px}.ff-cont .t1{text-transform:uppercase;letter-spacing:.5px;color:#1c1509;font-family:Barlow Condensed;font-size:16px;font-weight:800}.ff-cont .t2{color:#6a5c3c;margin-top:1px;font-size:11px}.ff-prog{background:#cdbf9c;border-radius:99px;height:7px;margin-top:7px;overflow:hidden;box-shadow:inset 0 0 0 1px #5a461e40}.ff-prog>span{background:var(--yellow);width:0;height:100%;transition:width 1.1s cubic-bezier(.2,.7,.3,1) .4s;display:block}.ff-cont .chev{color:#7a6a44;flex:none;font-size:22px}.fault-card{background:var(--paper);color:#141414;border:1px solid #78643c33;border-radius:10px;margin:6px 0 16px;padding:18px 16px;position:relative;box-shadow:0 8px 20px #0006}.fault-type{text-align:center;color:#a51712;letter-spacing:.5px;text-transform:uppercase;font-family:Barlow Condensed;font-size:12px;font-weight:800}.fault-text{text-transform:uppercase;text-align:center;margin:8px 0 12px;font-family:Barlow Condensed;font-size:23px;font-weight:900;line-height:1.15}.meta-row{text-align:center;border-top:1px solid #0000002e;justify-content:space-around;margin-top:12px;padding-top:12px;display:flex}.meta-row div{text-transform:uppercase;color:#555;font-size:10px;font-weight:700}.meta-row strong{color:#111;margin-top:3px;font-size:14px;display:block}.section-label{text-transform:uppercase;color:var(--muted);letter-spacing:.6px;margin:18px 0 8px;font-family:Barlow 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.sub{color:var(--muted);margin-top:3px;font-size:12px}.ch-card.solved{opacity:.72}.ch-card .stat-ic{font-size:18px}.ch-card .stat-ic.solved{color:var(--green)}.ch-card .stat-ic.worked{color:var(--yellow)}.ch-card .stat-ic.new{color:var(--muted)}.chip{text-transform:uppercase;letter-spacing:.4px;color:var(--yellow);white-space:nowrap;background:#11110a;border:1px solid #3a3411;border-radius:999px;padding:3px 8px;font-size:10px;font-weight:800}.status-chip{text-transform:uppercase;letter-spacing:.5px;white-space:nowrap;border-radius:999px;padding:3px 8px;font-size:9.5px;font-weight:800}.status-chip.solved{border:1px solid var(--green);color:var(--green);background:#0e2418}.status-chip.worked{border:1px solid var(--yellow-deep);color:var(--yellow);background:#241f05}.status-chip.new{border:1px solid var(--line);color:var(--muted);background:#161616}.bay-card{border:1px solid var(--line);background:linear-gradient(#1c1c1c,#0f0f0f);border-radius:12px;margin:12px 0;padding:16px;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff0a}.bay-card:before{content:"";background-image:var(--metal-noise);opacity:.04;mix-blend-mode:overlay;pointer-events:none;position:absolute;inset:0}.bay-card>*{position:relative}.bay-title{color:var(--muted);margin-bottom:10px;font-size:16px;font-weight:700}.opt-tag{color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 6px;font-size:10px}.scenario{background:var(--surface);border-left:3px solid var(--yellow);border-radius:0 8px 8px 0;margin:0 0 14px;padding:14px 16px;font-size:15.5px}.scenario b{color:var(--yellow)}.screen-note{color:#cfcac3;font-size:14px;line-height:1.45}.rubric-hints{color:var(--muted);margin:4px 0 12px 18px;font-size:13px}.rubric-hints li{margin:4px 0}.ff-err{color:#ff7676;margin:8px 0 0;font-size:13px}.ff-diagram svg{width:100%;height:auto;margin:4px 0 12px;display:block}.ff-diagram .wire{stroke:#5a5a5a;stroke-width:2.5px;fill:none}.ff-diagram .box{fill:var(--surface);stroke:#6a6a6a;stroke-width:2px}.ff-diagram .box.flag{stroke:var(--steel)}.ff-diagram .blabel{fill:var(--fg);text-anchor:middle;font-family:Barlow Condensed;font-size:12.5px;font-weight:700}.ff-diagram .rail{fill:var(--muted);font-family:Barlow Condensed;font-size:12px;font-weight:700}.tests{gap:10px;display:grid}.test{background:var(--surface);border:1px solid var(--line);cursor:pointer;color:var(--fg);text-align:left;border-radius:9px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:13px 15px;font-size:15px;transition:border-color .14s;display:flex}.test:hover:not(.done){border-color:var(--yellow)}.test.done{background:#131313}.test .res{white-space:nowrap;font-size:14px;font-weight:700}.test .res.empty{color:var(--muted);font-size:13px;font-weight:400}.test .res.good{color:var(--green)}.test .res.bad{color:#ff7676}.test .note{color:var(--muted);flex-basis:100%;margin-top:6px;font-size:13px;animation:.3s 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#ffffff80;background:linear-gradient(#ffd83f,#f3b80a);border:1px solid #8a6300;border-radius:9px;margin-top:12px;padding:15px;font-family:Barlow Condensed;font-size:18px;font-weight:900;position:relative;overflow:hidden}.button:active{box-shadow:0 2px 0 var(--yellow-shadow);transform:translateY(2px)}.button:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.link-btn{width:100%;color:var(--muted);cursor:pointer;background:0 0;border:none;margin-top:10px;font-size:13px;display:block}.actrow{gap:8px;margin-top:12px;display:flex}.actrow .button{flex:1;margin-top:0}.hintbtn{color:var(--fg);text-transform:uppercase;cursor:pointer;background:#1c1c1c;border:1px solid #3a3a3a;border-radius:9px;flex-direction:column;flex:0 0 26%;justify-content:center;align-items:center;padding:6px;font-family:Barlow Condensed;font-size:15px;font-weight:800;line-height:1;display:flex}.hintbtn small{color:var(--yellow);letter-spacing:.3px;margin-top:3px;font-size:9px;font-weight:700}.hintbtn:active{transform:translateY(2px)}.hintbtn:disabled{opacity:.4;cursor:not-allowed}.hintbtn.retry{border-color:var(--red);color:#ff8c79;background:#3a1212}.hintbtn.retry small{color:#ff8c79}.hinttext{color:#cfe6f5;background:#0e2532;border:1px solid #1d4a63;border-radius:8px;margin-top:9px;padding:10px 12px;font-size:13px}.ff-numwrap{align-items:stretch;gap:8px;display:flex}.ff-numin{background:var(--surface);border:1px solid var(--line);color:#38ffba;text-align:center;border-radius:9px;flex:1;padding:11px;font-family:Barlow Condensed;font-size:24px;font-weight:800}.ff-numin:focus{border-color:var(--yellow);outline:none}.ff-unit{border:1px solid var(--line);color:var(--muted);background:#111;border-radius:9px;align-items:center;padding:0 16px;font-family:Barlow 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