*{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;
            --red:#993030;--red-bg:#fdf0f0;
            --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-sep{height:1px;background:var(--line);margin:10px 0}
        .nav-back{color:var(--light) !important;font-size:13px !important}
        .nav-back:hover{color:var(--dark) !important}
        .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:52px;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}

        strong{font-weight:600;color:var(--dark)}
        em{font-style:italic}
        .note{border-left:3px solid var(--blue);padding:10px 16px;margin:16px 0;font-size:15px;background:var(--blue-bg);color:var(--blue)}
        .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-amber{border-left:3px solid var(--amber);padding:10px 16px;margin:16px 0;font-size:15px;background:var(--amber-bg);color:var(--amber)}
        .note-coral{border-left:3px solid var(--coral);padding:10px 16px;margin:16px 0;font-size:15px;background:var(--coral-bg);color:var(--coral)}

        /* ══════════════════════════════════════════
           ETL PIPELINE DİYAGRAMI — İnteraktif
        ══════════════════════════════════════════ */

        .pipeline-wrap{margin:24px 0}

        /* Hata modu toggle */
        .mode-toggle{
            display:flex;gap:0;border:1px solid var(--line);
            width:fit-content;margin-bottom:18px;overflow:hidden;
        }
        .mt-btn{
            padding:8px 16px;
            font-family:'Inter',sans-serif;font-size:11px;font-weight:500;
            cursor:pointer;user-select:none;transition:all .15s;
            background:#fff;color:var(--muted);border:none;
            border-right:1px solid var(--line);
        }
        .mt-btn:last-child{border-right:none}
        .mt-btn.active{background:var(--dark);color:#fff}

        /* Pipeline katmanları */
        .pipe-layer{
            display:flex;align-items:center;gap:0;
            margin-bottom:4px;
        }

        .pl-node{
            flex-shrink:0;
            border:2px solid var(--line);
            background:#fff;
            padding:10px 12px;
            min-width:110px;
            text-align:center;
            position:relative;
            transition:all .2s;
            cursor:pointer;
        }
        .pl-node:hover{border-color:var(--muted)}
        .pl-node.healthy{border-color:var(--teal)}
        .pl-node.warning{border-color:var(--amber);background:var(--amber-bg)}
        .pl-node.error{border-color:var(--coral);background:var(--coral-bg)}

        .pln-name{font-family:'Inter',sans-serif;font-size:10px;font-weight:600;color:var(--dark);line-height:1.3}
        .pln-status{font-family:'Inter',sans-serif;font-size:9px;margin-top:3px}
        .pln-status.ok{color:var(--teal)}
        .pln-status.warn{color:var(--amber)}
        .pln-status.err{color:var(--coral)}

        /* Pipe connector */
        .pl-pipe{
            flex:1;height:28px;display:flex;align-items:center;
            position:relative;min-width:16px;
        }
        .pl-pipe-line{
            height:2px;width:100%;
            transition:background .2s;
        }
        .pl-pipe-line.ok{background:var(--teal)}
        .pl-pipe-line.warn{background:var(--amber)}
        .pl-pipe-line.err{background:var(--coral)}
        .pl-pipe-line.normal{background:var(--line)}
        .pl-pipe::after{
            content:'▶';position:absolute;right:-1px;top:50%;
            transform:translateY(-50%);font-size:9px;
        }
        .pl-pipe.ok::after{color:var(--teal)}
        .pl-pipe.warn::after{color:var(--amber)}
        .pl-pipe.err::after{color:var(--coral)}
        .pl-pipe.normal::after{color:var(--light)}

        /* Timing badge */
        .pl-timing{
            font-family:'Inter',sans-serif;font-size:9px;font-weight:600;
            text-transform:uppercase;letter-spacing:.07em;
            padding:2px 6px;position:absolute;top:-14px;left:50%;
            transform:translateX(-50%);white-space:nowrap;
            background:#fff;border:1px solid var(--line);color:var(--muted);
        }

        /* Panel below pipeline */
        .pipe-info{
            border:1px solid var(--line);padding:14px 16px;margin-top:12px;
            font-family:'Inter',sans-serif;font-size:12px;color:var(--text);
            line-height:1.65;display:none;
            animation:fadeIn .15s ease;
        }
        .pipe-info.visible{display:block}
        @keyframes fadeIn{from{opacity:0}to{opacity:1}}
        .pi-title{font-weight:600;color:var(--dark);margin-bottom:4px;font-size:13px}

        /* Failure scenario indicator */
        .failure-strip{
            display:flex;align-items:center;gap:8px;
            padding:10px 14px;margin-top:12px;
            border:1px solid var(--coral);background:var(--coral-bg);
            font-family:'Inter',sans-serif;font-size:12px;color:var(--coral);
            display:none;
        }
        .failure-strip.visible{display:flex}
        .fs-icon{font-size:14px;flex-shrink:0}

        /* ══════════════════════════════════════════
           BATCH vs REALTIME KARŞILAŞTIRMA
        ══════════════════════════════════════════ */

        .bvr-grid{
            display:grid;grid-template-columns:1fr 1fr;
            gap:1px;background:var(--line);border:1px solid var(--line);margin:20px 0;
        }
        .bvr-cell{background:#fff;padding:18px 16px}
        .bvr-header{
            display:flex;align-items:center;gap:8px;
            margin-bottom:12px;padding-bottom:10px;
            border-bottom:1px solid var(--line);
        }
        .bvr-icon{font-size:18px}
        .bvr-title{font-family:'Inter',sans-serif;font-size:13px;font-weight:600;color:var(--dark)}
        .bvr-list{list-style:none}
        .bvr-list li{
            font-family:'Inter',sans-serif;font-size:12px;color:var(--text);
            padding:3px 0;display:flex;gap:7px;line-height:1.5;
        }
        .bvr-list li.pro::before{content:'✓';color:var(--teal);flex-shrink:0;font-weight:600}
        .bvr-list li.con::before{content:'✗';color:var(--coral);flex-shrink:0;font-weight:600}

        /* ══════════════════════════════════════════
           MAPPING HATA SENARYOLARİ — Tıklanabilir
        ══════════════════════════════════════════ */

        .mapping-list{margin:20px 0}
        .mapping-item{
            border:1px solid var(--line);margin-bottom:6px;
            transition:border-color .15s;cursor:pointer;
            display:grid;grid-template-columns:4px 1fr;overflow:hidden;
        }
        .mapping-item:hover{border-color:var(--muted)}
        .mapping-item.open{border-color:var(--amber)}
        .mi-stripe{background:var(--line)}
        .mapping-item.open .mi-stripe{background:var(--amber)}
        .mapping-item.critical.open .mi-stripe{background:var(--coral)}
        .mapping-item.critical.open{border-color:var(--coral)}

        .mi-body{padding:0}
        .mi-header{
            display:flex;align-items:center;gap:10px;
            padding:12px 14px;
        }
        .mi-title{font-family:'Inter',sans-serif;font-size:12px;font-weight:500;color:var(--dark);flex:1}
        .mi-badge{
            font-family:'Inter',sans-serif;font-size:9px;font-weight:600;
            text-transform:uppercase;letter-spacing:.07em;
            padding:2px 7px;border:1px solid currentColor;flex-shrink:0;
        }
        .mi-toggle{font-size:14px;color:var(--light);transition:transform .15s;flex-shrink:0}
        .mapping-item.open .mi-toggle{transform:rotate(45deg)}

        .mi-content{
            display:none;padding:0 14px 12px;
            border-top:1px solid var(--line);
        }
        .mapping-item.open .mi-content{display:block}

        .mi-example{
            display:grid;grid-template-columns:1fr auto 1fr;
            gap:10px;align-items:center;
            margin-top:10px;margin-bottom:10px;
        }
        .mie-box{
            border:1px solid var(--line);padding:10px 12px;
            font-family:'Inter',sans-serif;font-size:11px;
        }
        .mie-label{font-weight:600;color:var(--dark);margin-bottom:4px;font-size:10px;text-transform:uppercase;letter-spacing:.06em}
        .mie-val{color:var(--text);line-height:1.5}
        .mie-arrow{font-size:16px;color:var(--light);text-align:center}

        .mi-impact{
            font-family:'Inter',sans-serif;font-size:11px;
            color:var(--text);line-height:1.6;
            padding:8px 10px;background:#fafafa;border:1px solid var(--line);
        }
        .mi-impact strong{color:var(--dark)}

        /* ══════════════════════════════════════════
           SOURCE OF TRUTH KARAR AĞACI
        ══════════════════════════════════════════ */

        .sot-questions{margin:20px 0}
        .sot-q{
            border:1px solid var(--line);margin-bottom:6px;overflow:hidden;
            display:grid;grid-template-columns:28px 1fr;
        }
        .sot-num{
            background:#fafafa;border-right:1px solid var(--line);
            display:flex;align-items:flex-start;justify-content:center;
            padding:13px 0;
            font-family:'Inter',sans-serif;font-size:11px;font-weight:600;
            color:var(--light);
        }
        .sot-body{padding:12px 14px}
        .sot-question{font-family:'Inter',sans-serif;font-size:12px;font-weight:600;color:var(--dark);margin-bottom:5px}
        .sot-answer{font-family:'Inter',sans-serif;font-size:12px;color:var(--muted);line-height:1.6}
        .sot-answer strong{color:var(--dark)}

        /* ══════════════════════════════════════════
           VERİ KALİTESİ BOYUTLARI
        ══════════════════════════════════════════ */

        .dq-dims{
            display:grid;grid-template-columns:1fr 1fr 1fr;
            gap:1px;background:var(--line);border:1px solid var(--line);margin:18px 0;
        }
        .dqd-cell{background:#fff;padding:14px 14px}
        .dqd-icon{font-size:18px;margin-bottom:6px;display:block}
        .dqd-name{font-family:'Inter',sans-serif;font-size:11px;font-weight:600;color:var(--dark);margin-bottom:4px}
        .dqd-text{font-family:'Inter',sans-serif;font-size:11px;color:var(--muted);line-height:1.55}
        .dqd-ex{
            margin-top:7px;font-family:'Inter',sans-serif;font-size:10px;
            color:var(--text);border-left:2px solid var(--line);padding-left:7px;line-height:1.5;
        }

        /* ══════════════════════════════════════════
           PAGE 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}
        .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%}
            .bvr-grid,.dq-dims{grid-template-columns:1fr}
            .mi-example{grid-template-columns:1fr}
            .mie-arrow{display:none}
            .pipe-layer{flex-wrap:wrap;gap:4px}
            .pl-node{min-width:80px}
        }
    
        .skip-link{position:fixed;left:12px;top:12px;z-index:1000;padding:8px 12px;background:var(--dark);color:#fff;font-family:'Inter',sans-serif;font-size:12px;transform:translateY(-160%);transition:transform .15s}
        .skip-link:focus{transform:translateY(0)}
        :focus-visible{outline:3px solid var(--blue);outline-offset:3px}
        .review-strip{display:flex;flex-wrap:wrap;gap:7px 16px;margin:0 0 30px;padding:10px 12px;border:1px solid var(--line);background:#fafafa;font-family:'Inter',sans-serif;font-size:11px;line-height:1.5;color:var(--muted)}
        .review-strip strong{color:var(--dark)}
        .source-box{margin:46px 0 0;padding-top:18px;border-top:1px solid var(--line)}
        .source-box h2{font-size:15px;border:0;padding:0;margin-bottom:8px;text-transform:none}
        .source-box p{font-family:'Inter',sans-serif;font-size:11px;color:var(--muted);margin-bottom:9px}
        .source-box ul{display:flex;flex-wrap:wrap;gap:7px 16px;list-style:none}
        .source-box a{font-family:'Inter',sans-serif;font-size:11px;color:var(--blue);text-underline-offset:3px}
        [role="button"]{touch-action:manipulation}
        [aria-live="polite"]{contain:content}
        @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
        @media(max-width:768px){
            nav{padding-bottom:12px!important;border-bottom:1px solid var(--line)}
            nav .nav-sep{display:none!important}
            nav a{display:none!important}
            nav a[href="../index.html"],nav a[href="dsroadmap2.html"],nav a.nav-back,nav a.active{display:inline-block!important}
            table{width:100%;table-layout:fixed;font-size:11px}
            th,td{padding:7px 5px!important;overflow-wrap:anywhere;word-break:normal}
            .page-nav{flex-direction:column}
            .review-strip{margin-bottom:24px}
        }

    

        /* ── Timing / as-of mismatch ── */
        .tm{border:1px solid var(--line);margin:22px 0}
        .tm-clock{display:grid;grid-template-columns:repeat(5,1fr);border-bottom:1px solid var(--line);background:#fafafa}
        .tmc{padding:10px 6px;text-align:center;cursor:pointer;user-select:none;border-right:1px solid var(--line);border-bottom:3px solid transparent;transition:all .15s}
        .tmc:last-child{border-right:none}
        .tmc:hover{background:#fff}
        .tmc.on{background:#fff;border-bottom-color:var(--blue)}
        .tmc-t{font-family:'Inter',sans-serif;font-size:12px;font-weight:600;color:var(--dark)}
        .tmc-s{font-family:'Inter',sans-serif;font-size:9px;color:var(--muted);margin-top:2px;line-height:1.25}
        .tm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
        .tms{background:#fff;padding:13px 12px}
        .tms-sys{font-family:'Inter',sans-serif;font-size:11px;font-weight:600;color:var(--dark);margin-bottom:4px;display:flex;align-items:center;gap:6px}
        .tms-val{font-family:'Source Serif 4',serif;font-size:19px;font-weight:600;color:var(--dark);line-height:1.1}
        .tms-badge{font-family:'Inter',sans-serif;font-size:8.5px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;padding:1px 6px;border:1px solid currentColor;margin-top:5px;display:inline-block}
        .tms.fresh .tms-badge{color:var(--teal)}
        .tms.stale{background:var(--coral-bg)}
        .tms.stale .tms-val{color:var(--coral)}
        .tms.stale .tms-badge{color:var(--coral)}
        .tm-msg{padding:12px 16px;border-top:1px solid var(--line);background:#fafafa;font-family:'Inter',sans-serif;font-size:12px;line-height:1.6;color:var(--text)}
        .tm-msg strong{color:var(--dark)}
        @media(max-width:768px){.tm-grid{grid-template-columns:1fr 1fr}.tm-clock{grid-template-columns:repeat(2,1fr)}}