:root{--ink:#1d2924;--forest:#31483b;--sage:#6e8275;--paper:#f4f2e9;--white:#fffdf8;--yellow:#ffd000;--line:#d7d8cf;--muted:#68736d;--shadow:0 24px 80px rgba(29,41,36,.13)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Manrope,Arial,sans-serif}button,input,textarea,select{font:inherit;color:inherit}button,a{touch-action:manipulation}a{color:inherit}.skip-link{position:fixed;left:1rem;top:-5rem;background:var(--yellow);padding:.75rem 1rem;z-index:100}.skip-link:focus{top:1rem}.site-header{height:88px;padding:0 3vw;background:var(--white);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:3rem;position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;text-decoration:none;min-width:260px}.brand img{width:58px;height:58px;object-fit:contain;margin-right:.7rem}.brand>span{font-family:"Barlow Condensed",sans-serif;font-weight:600;letter-spacing:.08em;line-height:.9;font-size:1rem}.brand strong{display:block;font-size:1.42rem}.brand strong span{color:#d7b000}.site-header nav{display:flex;gap:1.8rem;margin-left:auto}.site-header nav a{text-decoration:none;font-size:.78rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase;padding:.8rem 0;border-bottom:2px solid transparent}.site-header nav a:hover,.site-header nav a.active{border-color:var(--yellow)}.header-actions{display:flex;align-items:center;gap:.7rem}.plain-button,.account-button,.menu-button{border:1px solid var(--line);background:transparent;padding:.72rem .9rem;text-decoration:none;font-size:.75rem;font-weight:800}.account-button{background:var(--ink);color:white;border-color:var(--ink)}.menu-button{display:none}.workspace{display:grid;grid-template-columns:minmax(340px,29vw) 1fr;min-height:calc(100vh - 88px)}.knowledge-sidebar{background:var(--ink);color:#f6f3e8;min-height:calc(100vh - 88px);display:flex;flex-direction:column}.sidebar-head{padding:2.5rem 2.2rem 1.4rem;border-bottom:1px solid rgba(255,255,255,.12)}.sidebar-head p,.admin-nav>p{margin:0 0 .7rem;color:var(--yellow);font-size:.68rem;font-weight:800;letter-spacing:.17em}.sidebar-head h1,.admin-nav h1{font-family:"Barlow Condensed",sans-serif;font-size:2.1rem;line-height:1;margin:0 0 1.6rem}.sidebar-head label{height:44px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);display:flex;align-items:center;padding:0 .9rem;gap:.65rem}.sidebar-head input{width:100%;border:0;outline:0;background:transparent;color:white}.sidebar-head input::placeholder{color:#9eaaa3}#topic-tree{padding:1.15rem 0 1.5rem;overflow-y:auto;max-height:calc(100vh - 315px);scrollbar-color:#617168 transparent;scrollbar-width:thin}.group-block{margin:0 .85rem;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.025)}.group-block+.group-block{margin-top:1rem}.group-toggle,.category-toggle,.topic-link{width:100%;border:0;text-align:left;cursor:pointer}.group-toggle{min-height:72px;display:grid;grid-template-columns:42px 1fr 16px;align-items:center;gap:.8rem;padding:.8rem 1rem;background:#293d32;color:white;border-left:4px solid transparent}.group-toggle:hover,.group-toggle:focus-visible{background:#334b3e}.group-block.is-open>.group-toggle{border-left-color:var(--yellow);background:#354d40}.group-index{width:38px;height:38px;display:grid;place-items:center;background:var(--yellow);color:var(--ink);font-family:"Barlow Condensed";font-size:1.15rem;font-weight:800}.group-copy{display:flex;flex-direction:column;gap:.2rem}.group-copy strong{font-family:"Barlow Condensed";font-size:1.4rem;line-height:1;letter-spacing:.055em;text-transform:uppercase}.group-copy small{font-size:.58rem;font-weight:800;letter-spacing:.14em;color:#bac6bf}.group-chevron{width:9px;height:9px;border-right:2px solid var(--yellow);border-bottom:2px solid var(--yellow);transform:rotate(45deg) translateY(-2px);transition:transform .18s ease}.group-toggle[aria-expanded="false"] .group-chevron{transform:rotate(-45deg)}.group-children{padding:.55rem 0 .75rem}.category-branch{position:relative}.category-toggle{min-height:46px;display:grid;grid-template-columns:18px 1fr 28px;align-items:center;gap:.55rem;padding:.55rem 1rem .55rem 1.2rem;background:transparent;color:#d9e0db}.category-toggle:hover,.category-toggle:focus-visible{background:rgba(255,255,255,.055);color:white}.tree-switch{width:13px;height:13px;border:1px solid #7e8e85;position:relative}.tree-switch:before,.tree-switch:after{content:"";position:absolute;background:var(--yellow);left:3px;right:3px;top:5px;height:1px}.tree-switch:after{top:3px;bottom:3px;left:5px;width:1px;height:auto;right:auto}.category-toggle[aria-expanded="true"] .tree-switch:after{display:none}.category-name{font-size:.7rem;font-weight:800;line-height:1.3;letter-spacing:.075em;text-transform:uppercase}.category-toggle small{justify-self:end;min-width:25px;padding:.2rem .3rem;background:rgba(255,255,255,.08);color:#aab7af;text-align:center;font-size:.58rem}.topic-branch{position:relative;padding:.1rem 0 .4rem 1.2rem}.topic-branch:before{content:"";position:absolute;left:1.59rem;top:0;bottom:.85rem;width:1px;background:#52645a}.topic-link{position:relative;display:grid;grid-template-columns:18px 1fr;align-items:start;gap:.58rem;background:transparent;color:#cbd4ce;padding:.57rem 1rem .57rem .15rem;font-size:.75rem;line-height:1.35}.topic-link:hover,.topic-link:focus-visible{background:rgba(255,255,255,.055);color:white}.topic-link.active{background:rgba(255,208,0,.12);color:var(--yellow);font-weight:800}.topic-node{position:relative;width:18px;height:14px}.topic-node:before{content:"";position:absolute;left:0;top:7px;width:13px;height:1px;background:#52645a}.topic-node:after{content:"";position:absolute;right:0;top:4px;width:6px;height:6px;border:1px solid #72837a;background:var(--ink);border-radius:50%}.topic-link.active .topic-node:after{border-color:var(--yellow);background:var(--yellow);box-shadow:0 0 0 3px rgba(255,208,0,.15)}.group-toggle:focus-visible,.category-toggle:focus-visible,.topic-link:focus-visible{outline:2px solid var(--yellow);outline-offset:-2px}.knowledge-sidebar footer{margin-top:auto;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;padding:1.1rem 2.2rem;font-size:.65rem;color:#9eaaa3}.knowledge-sidebar footer a{color:var(--yellow)}.topic-content{padding:4.2vw;min-width:0}.welcome-panel{min-height:68vh;border:1px solid var(--line);background:var(--white);padding:clamp(2rem,6vw,6rem);position:relative;overflow:hidden}.welcome-panel:after{content:"52";position:absolute;right:-.04em;bottom:-.27em;font-family:"Barlow Condensed";font-weight:700;font-size:34vw;color:#f0eee4;z-index:0}.welcome-panel>*{position:relative;z-index:1}.eyebrow{color:#7a6a00;font-size:.68rem;font-weight:800;letter-spacing:.18em;margin:0 0 1.3rem}.welcome-panel h2,.topic-hero h1,.account-copy h1{font-family:"Barlow Condensed";font-size:clamp(3.2rem,7vw,7.2rem);line-height:.84;letter-spacing:-.03em;margin:0;text-transform:uppercase}.welcome-panel h2 em,.account-copy h1 em{font-style:normal;color:#8c7900}.welcome-panel>p{max-width:650px;font-size:1.08rem;line-height:1.8;margin:2rem 0}.cycle{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap;margin-top:4rem}.cycle span{font-size:.68rem;font-weight:800;letter-spacing:.11em;background:var(--paper);padding:.65rem .8rem}.cycle i{font-style:normal;color:#a28b00}.topic-crumb{font-size:.7rem;color:var(--muted);font-weight:800;letter-spacing:.09em;margin-bottom:1.2rem}.topic-hero{border-bottom:4px solid var(--ink);padding-bottom:2.4rem}.topic-hero h1{font-size:clamp(3rem,6vw,6.5rem);max-width:1100px}.topic-hero p{max-width:820px;line-height:1.8;font-size:1rem;margin:1.4rem 0 0}.section-kicker{display:flex;align-items:end;justify-content:space-between;margin:3.5rem 0 1.3rem;padding-bottom:.9rem;border-bottom:1px solid var(--ink)}.section-kicker h2{font-family:"Barlow Condensed";font-size:2.2rem;margin:0;text-transform:uppercase}.section-kicker span{font-size:.65rem;color:var(--muted);font-weight:800;letter-spacing:.12em}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.tool-card{background:var(--white);border:1px solid var(--line);padding:1.35rem;display:grid;grid-template-columns:52px 1fr auto;gap:1rem;align-items:center;min-height:120px}.tool-icon{width:52px;height:52px;background:var(--yellow);display:grid;place-items:center;font-family:"Barlow Condensed";font-size:1.6rem;font-weight:700}.tool-card h3{font-size:.95rem;margin:0 0 .4rem}.tool-card p{font-size:.75rem;line-height:1.5;color:var(--muted);margin:0}.tool-card button,.tool-card a{border:0;background:var(--ink);color:white;padding:.65rem .8rem;text-decoration:none;font-size:.67rem;font-weight:800;cursor:pointer}.article-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}.article-card{background:var(--white);padding:1.7rem;display:grid;grid-template-columns:120px 1fr 32px;gap:1.5rem;align-items:start;cursor:pointer}.article-number{font-family:"Barlow Condensed";font-size:3.2rem;color:#c8cabf;line-height:1}.article-card h3{font-family:"Barlow Condensed";font-size:1.8rem;line-height:1;margin:0 0 .7rem}.article-card p{margin:0;color:var(--muted);line-height:1.7;font-size:.82rem}.article-card:hover h3{color:#897500}.empty-box{border:1px dashed #adb2aa;background:rgba(255,255,255,.35);padding:2rem;color:var(--muted)}.article-full{background:var(--white);border:1px solid var(--line);padding:clamp(1.5rem,4vw,4rem);margin-top:1rem}.article-full button{border:0;background:none;font-weight:800;cursor:pointer;padding:0 0 1.5rem}.article-full h2{font-family:"Barlow Condensed";font-size:clamp(2.5rem,5vw,5rem);line-height:.95;margin:0 0 2rem}.article-body{line-height:1.85;max-width:900px;white-space:pre-wrap}.calculator{position:fixed;inset:0;background:rgba(17,27,22,.72);display:grid;place-items:center;z-index:50;padding:1rem}.calculator-panel{background:var(--white);width:min(620px,100%);padding:2rem;box-shadow:var(--shadow)}.calculator-panel header{display:flex;justify-content:space-between;gap:1rem;border-bottom:1px solid var(--line);padding-bottom:1rem}.calculator-panel h2{font-family:"Barlow Condensed";font-size:2rem;margin:0}.calculator-panel header button{font-size:1.7rem;border:0;background:none}.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:1.5rem 0}.calc-grid label{font-size:.72rem;font-weight:800}.calc-grid input{width:100%;margin-top:.4rem;padding:.8rem;border:1px solid var(--line);background:white}.calc-result{background:var(--ink);color:white;padding:1.2rem;line-height:1.8}.calc-result strong{color:var(--yellow)}#toast{position:fixed;right:1rem;bottom:1rem;z-index:100;background:var(--ink);color:white;padding:.9rem 1.2rem;box-shadow:var(--shadow);opacity:0;transform:translateY(1rem);pointer-events:none;transition:.2s}#toast.show{opacity:1;transform:none}.skeleton{height:160px;margin:1rem;background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(255,255,255,.13),rgba(255,255,255,.05));background-size:200% 100%;animation:shine 1.2s infinite}@keyframes shine{to{background-position:-200% 0}}
.account-page{min-height:100vh;background:var(--ink)}.account-page .site-header{position:relative}.account-shell{min-height:calc(100vh - 88px);display:grid;grid-template-columns:1.25fr .75fr}.account-copy{color:white;padding:8vw 6vw;background:linear-gradient(130deg,rgba(49,72,59,.92),rgba(29,41,36,.98)),url('/assets/construction.jpg') center/cover}.account-copy h1{font-size:clamp(3.8rem,7vw,7.5rem)}.account-copy h1 em{color:var(--yellow)}.account-copy>p{max-width:650px;line-height:1.8;color:#d6ddd8}.account-points{display:flex;gap:1rem;flex-wrap:wrap;margin-top:3rem}.account-points span{border:1px solid rgba(255,255,255,.2);padding:.7rem .9rem;font-size:.72rem}.login-card{background:var(--white);display:flex;flex-direction:column;justify-content:center;padding:clamp(2rem,5vw,5rem)}.login-card>img{width:90px;height:90px;object-fit:contain}.login-card>p{font-size:.65rem;font-weight:800;letter-spacing:.15em;margin:2rem 0 .5rem;color:#887500}.login-card h2{font-family:"Barlow Condensed";font-size:2.7rem;margin:0 0 2rem}.login-card small{max-width:360px;line-height:1.6;margin-top:2rem;color:var(--muted)}.login-card>a{font-size:.75rem;font-weight:800;margin-top:.7rem}.profile-card img{width:64px;height:64px;border-radius:50%}.profile-card button{display:block;margin-top:1rem;border:0;background:var(--ink);color:white;padding:.8rem 1rem}
.admin-page{background:#eeece3}.admin-shell{display:grid;grid-template-columns:310px 1fr;min-height:calc(100vh - 88px)}.admin-nav{background:var(--ink);color:white;padding:2.2rem;display:flex;flex-direction:column}.admin-nav h1{font-size:2.5rem}.admin-tab,.admin-nav>a{border:0;border-top:1px solid rgba(255,255,255,.13);background:transparent;color:#d9dfda;padding:1rem 0;text-align:left;display:flex;justify-content:space-between;text-decoration:none;font-size:.8rem;cursor:pointer}.admin-tab.active{color:var(--yellow)}.admin-nav footer{margin-top:auto;color:#9eaaa3;font-size:.7rem}.admin-main{padding:3vw;min-width:0}.admin-heading{display:flex;justify-content:space-between;align-items:end;border-bottom:3px solid var(--ink);padding-bottom:1.2rem}.admin-heading h2{font-family:"Barlow Condensed";font-size:3rem;margin:0}.primary-button{background:var(--yellow);border:0;padding:.9rem 1.1rem;font-weight:800;cursor:pointer}.admin-content{margin-top:1.5rem}.data-table{width:100%;border-collapse:collapse;background:var(--white)}.data-table th{text-align:left;font-size:.65rem;letter-spacing:.1em;background:#e2e0d6;padding:.9rem}.data-table td{padding:.9rem;border-bottom:1px solid var(--line);font-size:.76rem}.data-table button{border:0;background:none;text-decoration:underline;cursor:pointer;font-weight:800}.status{display:inline-block;padding:.3rem .55rem;background:#e6eadf;font-size:.62rem;font-weight:800}.status.draft{background:#eee1b3}.admin-topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.admin-topic-card{background:var(--white);border:1px solid var(--line);padding:1.2rem}.admin-topic-card h3{margin:.3rem 0}.admin-topic-card p{font-size:.73rem;color:var(--muted);min-height:42px}dialog{border:0;padding:0;width:min(850px,calc(100% - 2rem));max-height:92vh;box-shadow:var(--shadow);background:var(--white)}dialog::backdrop{background:rgba(16,25,20,.72)}.dialog-close{position:absolute;right:1rem;top:.7rem;border:0;background:none;font-size:2rem;z-index:2}.editor-form{padding:2rem}.editor-form h2{font-family:"Barlow Condensed";font-size:2.7rem;margin:0 0 1.5rem}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-grid .wide{grid-column:1/-1}.editor-form label{display:block;font-size:.7rem;font-weight:800}.editor-form input,.editor-form textarea,.editor-form select{width:100%;padding:.75rem;margin-top:.35rem;border:1px solid var(--line);background:white}.editor-form textarea{min-height:100px;resize:vertical}.editor-form textarea.body-editor{min-height:240px}.form-actions{display:flex;justify-content:flex-end;gap:.7rem;border-top:1px solid var(--line);margin-top:1.5rem;padding-top:1.2rem}.form-actions button{padding:.75rem 1rem;border:1px solid var(--line);background:white;font-weight:800}.form-actions .save{background:var(--ink);color:white;border-color:var(--ink)}
@media(max-width:1000px){.site-header nav{display:none}.workspace{grid-template-columns:1fr}.knowledge-sidebar{position:fixed;top:76px;bottom:0;left:0;width:min(390px,88vw);z-index:30;transform:translateX(-105%);transition:.25s}.knowledge-sidebar.open{transform:none}.site-header{height:76px;padding:0 1rem}.brand{min-width:0}.brand img{width:48px;height:48px}.brand>span{display:none}.menu-button{display:block}.topic-content{padding:1.2rem}.tool-grid{grid-template-columns:1fr}.account-shell{grid-template-columns:1fr}.account-copy{padding:4rem 1.4rem}.login-card{padding:3rem 1.4rem}.admin-shell{grid-template-columns:1fr}.admin-nav{padding:1.3rem}.admin-nav h1,.admin-nav>p{display:none}.admin-nav footer{display:none}.admin-main{padding:1.2rem}.admin-topic-grid{grid-template-columns:1fr}}
@media(max-width:620px){.site-header{gap:.4rem}.header-actions{margin-left:auto}.account-button{font-size:0;padding:.7rem}.account-button:after{content:"Giriş";font-size:.7rem}.welcome-panel{padding:2rem 1.2rem}.welcome-panel h2{font-size:3.6rem}.topic-hero h1{font-size:3.3rem}.tool-card{grid-template-columns:44px 1fr}.tool-card>:last-child{grid-column:2}.article-card{grid-template-columns:52px 1fr}.article-card>:last-child{display:none}.calc-grid,.form-grid{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}.data-table{display:block;overflow:auto}.admin-heading h2{font-size:2.2rem}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
.topic-content{position:relative}.topic-content.is-loading{cursor:progress}.topic-content.is-loading:before{content:"";position:absolute;z-index:8;top:0;left:4.2vw;right:4.2vw;height:3px;background:linear-gradient(90deg,transparent,var(--yellow),transparent);background-size:45% 100%;animation:content-load .9s linear infinite}.topic-content.is-loading>*{opacity:.62;transition:opacity .15s ease}@keyframes content-load{from{background-position:-60% 0}to{background-position:160% 0}}@media(max-width:1000px){.topic-content.is-loading:before{left:1.2rem;right:1.2rem}}@media(prefers-reduced-motion:reduce){.topic-content.is-loading>*{opacity:.8}.topic-content.is-loading:before{animation:none;background:var(--yellow)}}

.mobile-articles-link{display:none}
@media(max-width:1000px){.mobile-articles-link{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 .8rem;border:1px solid var(--ink);background:var(--yellow);color:var(--ink);font-size:.7rem;font-weight:800;letter-spacing:.03em;text-decoration:none}}
@media(max-width:360px){.header-actions{gap:.35rem}.mobile-articles-link{padding:0 .5rem;font-size:.67rem}}