*{margin:0;padding:0;box-sizing:border-box}
        :root{
            --bg:#fff;--text:#333;--muted:#999;--light:#b5b5b5;--line:#e5e5e5;--dark:#1a1a1a;
            --blue:#2a6cb6;--blue-bg:#f0f5fb;
            --teal:#1a7a5a;--teal-bg:#edf7f2;
            --amber:#8a5a10;--amber-bg:#fdf5e6;
            --coral:#a04020;--coral-bg:#fdf0eb;
            --purple:#6b46a8;--purple-bg:#f4f0fa;
            --slate:#445566;--slate-bg:#f0f2f5
        }
        ::selection{background:#d5d5d5;color:var(--dark)}
        html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
        body{font-family:'Source Serif 4',Georgia,serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}

        .layout{display:flex;min-height:100vh;max-width:1060px;margin:0 auto;padding:56px 32px 56px 0}
        nav{position:sticky;top:56px;align-self:flex-start;min-width:150px;padding:0 36px 0 32px;text-align:right}
        nav a{display:block;font-family:'Inter',sans-serif;font-size:14px;font-weight:400;color:var(--muted);text-decoration:none;padding:4px 0;transition:color .2s}
        nav a:hover{color:var(--dark)}
        nav a.active{color:var(--dark);font-weight:500;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
        .nav-back{color:var(--light)!important;font-size:13px!important}
        .nav-back:hover{color:var(--dark)!important}
        .nav-sep{height:1px;background:var(--line);margin:10px 0}
        .divider{width:1px;background:var(--line);flex-shrink:0}
        main{flex:1;padding-left:48px;max-width:680px}

        .page-label{font-family:'Inter',sans-serif;font-size:13px;color:var(--light);margin-bottom:2px}
        .page-name{font-size:20px;font-weight:400;color:var(--dark);margin-bottom:40px}

        section{margin-bottom:56px;scroll-margin-top:40px}
        section h2{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:14px;text-transform:lowercase}
        section p{margin-bottom:10px}
        section p:last-child{margin-bottom:0}
        em{font-style:italic}
        strong{font-weight:600;color:var(--dark)}

        .note{border-left:3px solid var(--blue);padding:10px 16px;margin:16px 0;font-size:15px;background:var(--blue-bg);color:var(--blue)}
        .note-amber{border-left:3px solid var(--amber);padding:10px 16px;margin:16px 0;font-size:15px;background:var(--amber-bg);color:var(--amber)}
        .note-teal{border-left:3px solid var(--teal);padding:10px 16px;margin:16px 0;font-size:15px;background:var(--teal-bg);color:var(--teal)}
        .note-coral{border-left:3px solid var(--coral);padding:10px 16px;margin:16px 0;font-size:15px;background:var(--coral-bg);color:var(--coral)}

        /* ── Karşılaştırma tablosu ── */
        .compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);margin:24px 0}
        .cmp-col{border-right:1px solid var(--line)}
        .cmp-col:last-child{border-right:none}
        .cmp-header{padding:10px 16px;font-family:'Inter',sans-serif;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:#fff}
        .cmp-header.trad{background:var(--slate)}
        .cmp-header.ai{background:var(--purple)}
        .cmp-row{padding:9px 16px;border-bottom:1px solid var(--line);font-family:'Inter',sans-serif;font-size:12px;line-height:1.55;min-height:58px}
        .cmp-row:last-child{border-bottom:none}
        .cmp-row .cmp-k{display:block;font-size:9px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:2px}

        /* ── 20 cevap simülasyonu ── */
        .sim-container{border:1px solid var(--line);padding:24px;margin:24px 0}
        .sim-title{font-family:'Inter',sans-serif;font-size:13px;font-weight:600;color:var(--dark);text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
        .sim-question{font-family:'Inter',sans-serif;font-size:13px;background:#f8f8f8;border:1px solid var(--line);padding:10px 14px;margin-bottom:16px;color:var(--dark)}
        .sim-question span{color:var(--muted);font-size:11px;display:block;margin-bottom:3px;text-transform:uppercase;letter-spacing:.06em}
        .sim-ctrl-row{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
        .sim-ctrl-label{font-family:'Inter',sans-serif;font-size:12px;color:var(--text)}
        input[type=range]{flex:1;-webkit-appearance:none;height:3px;background:var(--line);border-radius:2px;outline:none;cursor:pointer;min-width:120px}
        input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--dark);cursor:pointer}
        .sim-btn{font-family:'Inter',sans-serif;font-size:12px;font-weight:600;padding:8px 18px;background:var(--dark);color:#fff;border:none;cursor:pointer;letter-spacing:.03em}
        .sim-btn:hover{background:#000}
        .sim-eq-val{font-family:'Inter',sans-serif;font-weight:600;color:var(--dark);font-size:12px}
        .answers-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin:14px 0}
        .ans-chip{font-family:'Inter',sans-serif;font-size:10px;line-height:1.45;padding:8px 9px;border:1px solid var(--line);background:#fafafa;color:var(--text);min-height:56px;transition:opacity .3s}
        .ans-chip.ok{border-color:var(--teal);background:var(--teal-bg);color:var(--teal)}
        .ans-chip.part{border-color:var(--amber);background:var(--amber-bg);color:var(--amber)}
        .ans-chip.bad{border-color:var(--coral);background:var(--coral-bg);color:var(--coral)}
        .sim-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:12px}
        .stat-cell{background:#fff;padding:10px 12px;text-align:center}
        .stat-cell .v{font-family:'Source Serif 4',serif;font-size:22px;font-weight:600;line-height:1.1}
        .stat-cell .l{font-family:'Inter',sans-serif;font-size:9px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-top:3px}
        .stat-ok .v{color:var(--teal)}
        .stat-part .v{color:var(--amber)}
        .stat-bad .v{color:var(--coral)}
        .sim-msg{font-family:'Inter',sans-serif;font-size:12px;padding:8px 12px;margin-top:12px;border-left:3px solid var(--line);color:var(--muted);line-height:1.55}
        .sim-msg.warn{border-color:var(--amber);background:var(--amber-bg);color:var(--amber)}
        .sim-msg.danger{border-color:var(--coral);background:var(--coral-bg);color:var(--coral)}
        .det-box{display:flex;align-items:center;gap:14px;border:1px solid var(--teal);background:var(--teal-bg);padding:12px 16px;margin-top:16px;flex-wrap:wrap}
        .det-box .det-t{font-family:'Inter',sans-serif;font-size:11px;font-weight:600;color:var(--teal);text-transform:uppercase;letter-spacing:.06em}
        .det-box .det-v{font-family:'Inter',sans-serif;font-size:12px;color:var(--teal)}

        /* ── Failure mode satırları ── */
        .fm-list{border:1px solid var(--line);margin:20px 0}
        .fm-row{display:flex;align-items:center;justify-content:space-between;padding:11px 16px;border-bottom:1px solid var(--line);cursor:pointer;transition:background .15s;user-select:none;gap:8px}
        .fm-row:last-child{border-bottom:none}
        .fm-row:hover{background:#f8f8f8}
        .fm-row.active{background:var(--coral-bg)}
        .fm-label{font-family:'Inter',sans-serif;font-size:12px;font-weight:500;color:var(--dark);flex:1}
        .fm-sub{font-family:'Inter',sans-serif;font-size:10px;color:var(--muted)}
        .fm-indicator{width:6px;height:6px;border-radius:50%;flex-shrink:0;background:var(--line);transition:background .15s}
        .fm-row.active .fm-indicator{background:var(--coral)}
        .fm-detail{display:none;border:1px solid var(--coral);border-top:none;background:var(--coral-bg);padding:16px;margin-bottom:16px}
        .fm-detail.visible{display:block}
        .fm-detail-title{font-family:'Inter',sans-serif;font-size:12px;font-weight:600;color:var(--dark);margin-bottom:10px;text-transform:uppercase;letter-spacing:.05em}
        .fm-detail-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:rgba(0,0,0,.06);border:1px solid rgba(0,0,0,.06)}
        .fmc{background:rgba(255,255,255,.75);padding:10px 12px}
        .fmc-label{font-family:'Inter',sans-serif;font-size:9px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:5px}
        .fmc-text{font-family:'Inter',sans-serif;font-size:12px;color:var(--text);line-height:1.55}
        .fm-close{font-family:'Inter',sans-serif;font-size:11px;color:var(--muted);cursor:pointer;float:right;margin-top:-2px;padding:2px 6px;border:1px solid var(--line);background:#fff}
        .fm-close:hover{color:var(--dark)}

        /* ── Kapsam genişlemesi ── */
        .scope-flow{display:flex;align-items:stretch;gap:0;margin:24px 0;flex-wrap:wrap}
        .scope-node{flex:1;min-width:130px;border:1px solid var(--line);padding:14px 12px;text-align:center}
        .scope-node-title{font-family:'Inter',sans-serif;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
        .scope-node-desc{font-family:'Inter',sans-serif;font-size:11px;color:var(--muted);line-height:1.5}
        .scope-arrow{display:flex;align-items:center;justify-content:center;width:32px;flex-shrink:0;font-size:20px;color:var(--muted)}
        .scope-node.s1{background:var(--slate-bg);border-color:var(--slate)}
        .scope-node.s1 .scope-node-title{color:var(--slate)}
        .scope-node.s2{background:var(--blue-bg);border-color:var(--blue)}
        .scope-node.s2 .scope-node-title{color:var(--blue)}
        .scope-node.s3{background:var(--purple-bg);border-color:var(--purple)}
        .scope-node.s3 .scope-node-title{color:var(--purple)}

        /* ── Anahtar çıkarımlar ── */
        .key-box{border:1px solid var(--line);padding:18px 20px;margin-bottom:10px}
        .key-box-title{font-family:'Inter',sans-serif;font-size:12px;font-weight:600;text-transform:lowercase;color:var(--dark);margin-bottom:6px}
        .key-box-text{font-size:15px;color:var(--text);line-height:1.7}

        /* ── Sayfa nav ── */
        .page-nav{display:flex;gap:12px;margin-top:36px}
        .page-nav-link{flex:1;border:1px solid var(--line);padding:14px 18px;text-decoration:none;transition:border-color .2s;display:flex;align-items:center}
        .page-nav-link:hover{border-color:var(--dark)}
        .page-nav-link.prev{justify-content:flex-start;gap:12px}
        .page-nav-link.next{justify-content:flex-end;gap:12px;text-align:right}
        .page-nav-link.disabled{opacity:.35;pointer-events:none}
        .pnl-meta{flex:1}
        .pnl-label{font-family:'Inter',sans-serif;font-size:10px;color:var(--light);text-transform:uppercase;letter-spacing:.06em;margin-bottom:3px}
        .pnl-title{font-family:'Inter',sans-serif;font-size:13px;color:var(--dark)}
        .pnl-arrow{font-size:18px;color:var(--muted);flex-shrink:0}

        .footer{margin-top:44px;padding-top:18px;border-top:1px solid var(--line);font-family:'Inter',sans-serif;font-size:12px;color:var(--light)}

        @media(max-width:768px){
            .layout{flex-direction:column;padding:28px 20px}
            nav{position:static;text-align:left;min-width:auto;padding:0 0 24px 0;display:flex;flex-wrap:wrap;gap:3px 14px}
            nav a{display:inline}
            .divider{width:100%;height:1px}
            main{padding-left:0;padding-top:28px;max-width:100%}
            .compare{grid-template-columns:1fr}
            .answers-grid{grid-template-columns:repeat(2,1fr)}
            .fm-detail-grid{grid-template-columns:1fr}
            .scope-flow{flex-direction:column}
            .scope-arrow{transform:rotate(90deg);height:24px;width:100%}
            .page-nav{flex-direction:column}
        }

        /* AIRISK-SERIES */
        .learning-goals{border-left:3px solid var(--blue);padding:12px 16px;margin:-24px 0 34px;background:rgba(26,111,145,.045)}
        .learning-goals-title,.source-note-title{font-family:'Inter',sans-serif;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--blue);margin-bottom:6px}
        .learning-goals ul{margin:0;padding-left:18px;color:var(--text);font-size:13px;line-height:1.65}
        .source-note{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin:34px 0 4px;font-family:'Inter',sans-serif;font-size:11px;line-height:1.65;color:var(--muted)}
        .source-note p{margin:0 0 5px}.source-note p:last-child{margin-bottom:0}.source-note a{color:var(--blue);text-underline-offset:2px}.source-note strong{color:var(--dark)}
        [onclick]:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
        .skip-link{position:absolute;left:12px;top:-60px;background:var(--dark);color:#fff;padding:9px 12px;z-index:9999;font-family:'Inter',sans-serif;font-size:12px}.skip-link:focus{top:12px}
        @media(max-width:600px){.learning-goals{margin-top:-22px}.learning-goals ul{font-size:12px}}
        @media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}