.abc-group{--abc-text: #1C1917;--abc-text-2: #57534E;--abc-text-3: #A8A29E;--abc-accent: #5C6B8B;--abc-accent-bg: #F1F3F7;--abc-cool: #8B6F4A;--abc-cool-bg: #FAF6EE;--abc-border: #E7E5E4;--abc-bg: #FAFAF7;--abc-surface: #FFFFFF;--abc-flag: #C64A3B;font-family:Inter,-apple-system,system-ui,sans-serif;color:var(--abc-text);line-height:1.75;max-width:720px;margin:0 auto;padding:3rem 1.5rem 4rem;background:var(--abc-bg)}.abc-group *,.abc-group *:before,.abc-group *:after{box-sizing:border-box}.abc-header{margin-bottom:2.5rem}.abc-header-label{font-size:.75rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--abc-accent);margin-bottom:.75rem}.abc-group h1{font-size:2.4rem;font-weight:700;line-height:1.15;color:var(--abc-text);letter-spacing:-.02em;margin-bottom:.5rem}.abc-subtitle{font-size:1.05rem;color:var(--abc-text-2);font-weight:400}.abc-nav{display:flex;gap:.25rem;border-bottom:1px solid var(--abc-border);margin-bottom:2.5rem;overflow-x:auto;-webkit-overflow-scrolling:touch}.abc-nav button{background:none;border:none;border-bottom:2px solid transparent;padding:.75rem 1rem;font-family:inherit;font-size:.875rem;font-weight:500;color:var(--abc-text-3);cursor:pointer;white-space:nowrap;transition:color .15s,border-color .15s}.abc-nav button:hover{color:var(--abc-text-2)}.abc-nav button.active{color:var(--abc-accent);font-weight:600;border-bottom-color:var(--abc-accent)}.abc-page-panel{display:none}.abc-page-panel.active{display:block;animation:abcAppear .25s ease}@keyframes abcAppear{0%{opacity:0}to{opacity:1}}.abc-group .section-label{font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--abc-text-3);margin-bottom:.5rem}.abc-group .section-label.warm{color:var(--abc-accent)}.abc-group .section-label.cool{color:var(--abc-cool)}.abc-group h2{font-size:1.35rem;font-weight:700;color:var(--abc-text);letter-spacing:-.01em;margin-bottom:.75rem}.abc-group h3{font-size:1.05rem;font-weight:600;color:var(--abc-text);margin-bottom:.5rem}.abc-group .body-text{font-size:.95rem;color:var(--abc-text-2);line-height:1.8}.abc-group .body-text+.body-text{margin-top:.75rem}.abc-group .body-text strong{color:var(--abc-text);font-weight:600}.abc-group .timing{font-size:.75rem;font-weight:500;color:var(--abc-text-3);float:right;margin-top:.2rem}.abc-group .divider{border:none;border-top:1px solid var(--abc-border);margin:2.5rem 0}.abc-group .callout{border-left:3px solid var(--abc-border);padding:1rem 1.25rem;margin:1.5rem 0}.abc-group .callout.warm{border-left-color:var(--abc-accent);background:var(--abc-accent-bg)}.abc-group .callout.cool{border-left-color:var(--abc-cool);background:var(--abc-cool-bg)}.abc-group .callout .callout-label{font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--abc-text-3);margin-bottom:.4rem}.abc-group .callout.warm .callout-label{color:var(--abc-accent)}.abc-group .callout.cool .callout-label{color:var(--abc-cool)}.abc-group .callout p{font-size:.9rem;color:var(--abc-text-2);line-height:1.7}.abc-group .callout p strong{color:var(--abc-text)}.abc-group .callout p+p{margin-top:.6rem}.abc-group .steps{margin:1.5rem 0}.abc-group .step{display:flex;gap:1rem;align-items:baseline;padding:.75rem 0;border-bottom:1px solid var(--abc-border)}.abc-group .step:last-child{border-bottom:none}.abc-group .step-num{font-size:.8rem;font-weight:700;color:var(--abc-text-3);flex-shrink:0;width:1.5rem;text-align:right}.abc-group .step-content{flex:1}.abc-group .step-q{font-size:.95rem;font-weight:600;color:var(--abc-text)}.abc-group .step-hint{font-size:.82rem;color:var(--abc-text-3);margin-top:.15rem;line-height:1.6}.abc-group .accordion{margin:1.5rem 0;border:1px solid var(--abc-border);border-radius:8px;overflow:hidden}.abc-group .acc-item{border-bottom:1px solid var(--abc-border)}.abc-group .acc-item:last-child{border-bottom:none}.abc-group .acc-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;cursor:pointer;background:var(--abc-surface);transition:background .15s;user-select:none}.abc-group .acc-header:hover{background:var(--abc-bg)}.abc-group .acc-title{font-size:.95rem;font-weight:600;color:var(--abc-text)}.abc-group .acc-icon{font-size:1.1rem;color:var(--abc-text-3);transition:transform .2s;font-weight:300;line-height:1}.abc-group .acc-item.open .acc-icon{transform:rotate(45deg)}.abc-group .acc-body{display:none;padding:0 1.25rem 1.25rem;background:var(--abc-surface)}.abc-group .acc-item.open .acc-body{display:block}.abc-group .acc-body p{font-size:.9rem;color:var(--abc-text-2);line-height:1.75}.abc-group .acc-body p+p{margin-top:.75rem}.abc-group .acc-body ul{font-size:.9rem;color:var(--abc-text-2);line-height:1.75;margin:.5rem 0 0;padding-left:1.25rem}.abc-group .acc-body ul li{margin-bottom:.4rem}.abc-group .acc-body ul li strong{color:var(--abc-text)}.abc-group .acc-body .aside{margin-top:.75rem;font-size:.85rem;font-style:italic;color:var(--abc-text-3);padding-left:1rem;border-left:2px solid var(--abc-border)}.abc-group .letter-grid{display:grid;grid-template-columns:1fr;gap:.75rem;margin:1.5rem 0}.abc-group .letter-card{border:1px solid var(--abc-border);border-radius:8px;overflow:hidden;cursor:pointer;transition:border-color .15s}.abc-group .letter-card:hover,.abc-group .letter-card.active{border-color:var(--abc-accent)}.abc-group .letter-card.cool-card:hover,.abc-group .letter-card.cool-card.active{border-color:var(--abc-cool)}.abc-group .letter-header{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem;background:var(--abc-surface)}.abc-group .letter-char{font-size:1.3rem;font-weight:700;color:var(--abc-accent);min-width:2.2rem;flex-shrink:0;text-align:center;font-family:Newsreader,Georgia,serif}.abc-group .letter-card.cool-card .letter-char{color:var(--abc-cool)}.abc-group .letter-name{font-size:.95rem;font-weight:600;color:var(--abc-text)}.abc-group .letter-brief{font-size:.8rem;color:var(--abc-text-3);margin-top:.1rem}.abc-group .letter-detail{display:none;padding:1.25rem;background:var(--abc-bg);border-top:1px solid var(--abc-border)}.abc-group .letter-card.active .letter-detail{display:block}.abc-group .letter-detail p{font-size:.9rem;color:var(--abc-text-2);line-height:1.75}.abc-group .letter-detail .aside{margin-top:.75rem;font-size:.85rem;font-style:italic;color:var(--abc-text-3);padding-left:1rem;border-left:2px solid var(--abc-border)}.abc-group .frame-card{border:1px solid var(--abc-border);border-radius:8px;background:var(--abc-surface);padding:1.25rem 1.5rem 1.5rem;margin:1.25rem 0 1.5rem}.abc-group .frame-card-label{font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--abc-accent);margin-bottom:.6rem}.abc-group .frame-card-note{font-size:.9rem;color:var(--abc-text-2);line-height:1.75;margin-bottom:1rem}.abc-group .frame-card-foot{margin-top:.75rem;font-size:.82rem;font-style:italic;color:var(--abc-text-3)}.abc-group .hierarchy-list{list-style:none;padding:0;margin:0}.abc-group .hier-item{display:flex;align-items:center;gap:.75rem;padding:.65rem .75rem;border-left:2px solid var(--abc-border);margin-bottom:.3rem;font-size:.9rem;color:var(--abc-text-2)}.abc-group .hier-item.hier-active{border-left-color:var(--abc-accent);background:var(--abc-accent-bg);color:var(--abc-text);font-weight:600}.abc-group .hier-rank{font-size:.75rem;font-weight:700;color:var(--abc-text-3);width:1.25rem}.abc-group .hier-item.hier-active .hier-rank{color:var(--abc-accent)}.abc-group .hier-label{flex:1}.abc-group .hier-flag{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--abc-accent)}.abc-group .reg-scale{margin-top:.5rem}.abc-group .reg-track{position:relative;height:78px;margin:0 12px}.abc-group .reg-track:before{content:"";position:absolute;left:0;right:0;top:38px;height:6px;background:linear-gradient(to right,#3f4b6e,#5c6b8b,#5c858b,#c8a55b,#c64a3b);border-radius:3px;opacity:.45}.abc-group .reg-band{position:absolute;top:32px;height:18px;background:var(--abc-accent);border-radius:4px;box-shadow:0 0 0 2px var(--abc-accent-bg)}.abc-group .reg-band-label{position:absolute;top:-1.5rem;left:50%;transform:translate(-50%);white-space:nowrap;font-size:.72rem;font-weight:600;color:var(--abc-accent);letter-spacing:.04em}.abc-group .reg-tick{position:absolute;top:56px;transform:translate(-50%)}.abc-group .reg-tick span{font-size:.7rem;font-weight:600;color:var(--abc-text-3);letter-spacing:.04em}.abc-group .reg-tick.reg-tick-mid span{color:var(--abc-text-2)}.abc-group .reg-zones{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;margin:1.2rem 12px .5rem}.abc-group .reg-zone{font-size:.65rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;text-align:center;padding:.3rem .4rem;border-radius:3px;color:#fff}.abc-group .reg-zone-shutdown{background:#3f4b6e}.abc-group .reg-zone-collapse{background:#5c6b8b}.abc-group .reg-zone-window{background:#5c858b}.abc-group .reg-zone-activation{background:#c8a55b}.abc-group .reg-zone-elevation{background:#c64a3b}.abc-group .reg-caption{margin-top:.85rem;font-size:.82rem;font-style:italic;color:var(--abc-text-3);line-height:1.65}.abc-group .diary-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--abc-border);border-radius:6px}.abc-group .diary-table{width:100%;border-collapse:collapse;font-size:.85rem}.abc-group .diary-table th{background:var(--abc-bg);text-align:left;padding:.6rem .75rem;font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--abc-text-3);border-bottom:1px solid var(--abc-border)}.abc-group .diary-table td{padding:.6rem .75rem;border-bottom:1px solid var(--abc-border);color:var(--abc-text-2);vertical-align:top}.abc-group .diary-table tr:last-child td{border-bottom:none}.abc-group .scenario-stack{margin:1.5rem 0}.abc-group .scenario-card{border:1px solid var(--abc-border);border-radius:8px;overflow:hidden;margin-bottom:.75rem}.abc-group .scenario-body{padding:1.5rem 1.5rem 1.25rem;background:var(--abc-surface)}.abc-group .scenario-tag{display:inline-block;font-size:.65rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;padding:.2rem .5rem;border-radius:3px;margin-bottom:.75rem}.abc-group .scenario-tag.warm{color:var(--abc-accent);background:var(--abc-accent-bg)}.abc-group .scenario-tag.cool{color:var(--abc-cool);background:var(--abc-cool-bg)}.abc-group .scenario-text{font-size:.95rem;color:var(--abc-text);line-height:1.8}.abc-group .scenario-sub{font-size:.82rem;color:var(--abc-text-3);margin-top:.6rem;font-style:italic}.abc-group .scenario-reveal{display:none;padding:1.25rem;border-top:1px solid var(--abc-border);background:var(--abc-bg)}.abc-group .scenario-reveal.show{display:block}.abc-group .scenario-reveal p{font-size:.9rem;color:var(--abc-text-2);line-height:1.75}.abc-group .scenario-reveal p+p{margin-top:.75rem}.abc-group .scenario-reveal p strong{color:var(--abc-text)}.abc-group .reveal-btn-row{border-top:1px solid var(--abc-border);text-align:center}.abc-group .reveal-btn{width:100%;padding:.9rem;border:none;font-family:inherit;font-size:.85rem;font-weight:600;cursor:pointer;background:var(--abc-surface);color:var(--abc-text-3);transition:background .15s,color .15s}.abc-group .reveal-btn:hover{background:var(--abc-bg);color:var(--abc-text-2)}.abc-group .reveal-btn.revealed{color:var(--abc-accent);background:var(--abc-accent-bg);cursor:default}.abc-group .questions{margin:1.5rem 0}.abc-group .question{padding:1rem 0;border-bottom:1px solid var(--abc-border)}.abc-group .question:last-child{border-bottom:none}.abc-group .question-label{font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--abc-text-3);margin-bottom:.3rem}.abc-group .question-text{font-size:.95rem;font-weight:500;color:var(--abc-text);line-height:1.7}.abc-group .question-note{font-size:.82rem;font-style:italic;color:var(--abc-text-3);margin-top:.3rem}.abc-group .options-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--abc-border);border:1px solid var(--abc-border);border-radius:8px;overflow:hidden;margin:1.5rem 0}.abc-group .option{background:var(--abc-surface);padding:1.25rem;cursor:pointer;transition:background .15s}.abc-group .option:hover{background:var(--abc-bg)}.abc-group .option.selected{background:var(--abc-accent-bg)}.abc-group .option-label{font-size:.9rem;font-weight:600;color:var(--abc-text);margin-bottom:.2rem}.abc-group .option-desc{font-size:.8rem;color:var(--abc-text-3);line-height:1.5}.abc-group .page-nav{display:flex;justify-content:space-between;align-items:center;margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--abc-border)}.abc-group .page-nav button{background:none;border:none;font-family:inherit;font-size:.9rem;font-weight:500;color:var(--abc-accent);cursor:pointer;padding:.5rem 0;transition:opacity .15s}.abc-group .page-nav button:hover{opacity:.7}.abc-group .page-nav .ghost{visibility:hidden}.abc-group .vuln{margin:1.5rem 0 2rem;border:1px solid var(--abc-border);border-radius:8px;background:var(--abc-surface);overflow:hidden}.abc-group .vuln-header{padding:1.25rem 1.5rem 1rem;border-bottom:1px solid var(--abc-border);background:var(--abc-bg)}.abc-group .vuln-title{font-size:1.05rem;font-weight:700;color:var(--abc-text)}.abc-group .vuln-sub{font-size:.85rem;color:var(--abc-text-2);margin-top:.4rem;line-height:1.65}.abc-group .vuln-sub strong{color:var(--abc-text)}.abc-group .vuln-section{padding:1rem 1.5rem;border-bottom:1px dashed var(--abc-border)}.abc-group .vuln-section-label{font-size:.7rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--abc-accent);margin-bottom:.75rem}.abc-group .vuln-row{display:flex;align-items:center;gap:.85rem;padding:.4rem 0}.abc-group .vuln-factor{font-size:.88rem;font-weight:600;color:var(--abc-text);width:120px;flex-shrink:0}.abc-group .vuln-row select{flex:1;padding:.45rem .6rem;border:1px solid var(--abc-border);border-radius:4px;font-family:inherit;font-size:.85rem;color:var(--abc-text);background:var(--abc-bg);transition:border-color .15s}.abc-group .vuln-row select:focus{outline:none;border-color:var(--abc-accent);background:var(--abc-surface)}.abc-group .vuln-check{display:flex;align-items:center;gap:.55rem;padding:.4rem 0;font-size:.88rem;color:var(--abc-text-2);cursor:pointer}.abc-group .vuln-check input{margin:0}.abc-group .vuln-actions{padding:1rem 1.5rem;background:var(--abc-bg);text-align:center}.abc-group .vuln-btn{padding:.7rem 1.5rem;border:1.5px solid var(--abc-accent);border-radius:4px;background:var(--abc-surface);color:var(--abc-accent);font-family:inherit;font-size:.85rem;font-weight:700;letter-spacing:.03em;cursor:pointer;transition:all .15s}.abc-group .vuln-btn:hover{background:var(--abc-accent);color:var(--abc-surface)}.abc-group .vuln-result{padding:1.5rem;background:var(--abc-bg);border-top:1px solid var(--abc-border)}.abc-group .vuln-result[hidden]{display:none}.abc-group .vuln-meter-wrap{margin-bottom:1rem}.abc-group .vuln-meter{height:10px;background:var(--abc-border);border-radius:5px;overflow:hidden}.abc-group .vuln-meter-fill{height:100%;width:0%;border-radius:5px;transition:width .3s ease,background .3s ease;background:var(--abc-accent)}.abc-group .vuln-meter-label{margin-top:.5rem;font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.abc-group .vuln-result.low .vuln-meter-fill{background:#5c858b}.abc-group .vuln-result.low .vuln-meter-label{color:#5c858b}.abc-group .vuln-result.moderate .vuln-meter-fill{background:#c8a55b}.abc-group .vuln-result.moderate .vuln-meter-label{color:#b08a3c}.abc-group .vuln-result.high .vuln-meter-fill{background:var(--abc-flag)}.abc-group .vuln-result.high .vuln-meter-label{color:var(--abc-flag)}.abc-group .vuln-readout{font-size:.92rem;color:var(--abc-text-2);line-height:1.75;margin-bottom:.85rem}.abc-group .vuln-readout strong{color:var(--abc-text)}.abc-group .vuln-target{font-size:.88rem;color:var(--abc-text-2);line-height:1.7;padding:.85rem 1rem;background:var(--abc-surface);border-left:3px solid var(--abc-accent);border-radius:4px;margin-bottom:1rem}.abc-group .vuln-target strong{color:var(--abc-accent)}.abc-group .vuln-reset{padding:.5rem 1rem;border:1px solid var(--abc-border);border-radius:4px;background:var(--abc-surface);color:var(--abc-text-2);font-family:inherit;font-size:.8rem;font-weight:500;cursor:pointer;transition:all .15s}.abc-group .vuln-reset:hover{border-color:var(--abc-accent);color:var(--abc-accent)}.abc-footer{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--abc-border);text-align:center;font-size:.8rem;color:var(--abc-text-3);line-height:1.8}.abc-footer strong{color:var(--abc-text-2);font-weight:600}@media(max-width:600px){.abc-group{padding:2rem 1.25rem 3rem}.abc-group h1{font-size:1.8rem}.abc-group .options-grid{grid-template-columns:1fr}.abc-group .vuln-factor{width:92px;font-size:.82rem}.abc-group .hier-flag{display:none}}@media(prefers-reduced-motion:reduce){.abc-page-panel{animation:none!important}.abc-group .acc-icon{transition:none!important}}