:root{
  --bg:#07090e;--bg2:#0b0f17;--panel:#0f141f;--panel2:#141b29;--line:#1c2536;--line2:#27324a;
  --text:#e9eef7;--muted:#8a95ab;--dim:#5d6780;
  --green:#22e3a0;--green2:#0fbf83;--red:#ff4d6d;--amber:#ffb547;--blue:#4da3ff;
  --radius:16px;--mono:'JetBrains Mono',ui-monospace,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:15px/1.65 Inter,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:'Space Grotesk',Inter,sans-serif;letter-spacing:-.02em;line-height:1.15}
::selection{background:var(--green);color:#02140d}
.wrap{width:min(1200px,100% - 32px);margin-inline:auto}
.section{padding:72px 0}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(7,9,14,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font:700 1.1rem 'Space Grotesk',sans-serif}
.nav-links{display:flex;gap:26px}
.nav-links a{text-decoration:none;color:var(--muted);font-weight:500;font-size:.92rem;transition:color .2s}
.nav-links a:hover{color:var(--green)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:12px;font:600 .95rem Inter,sans-serif;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .15s,box-shadow .2s,border-color .2s,background .2s}
.btn-primary{background:var(--green);color:#03140d;box-shadow:0 8px 30px -8px rgba(34,227,160,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px -8px rgba(34,227,160,.7)}
.btn-ghost{background:var(--panel);color:var(--text);border-color:var(--line2)}
.btn-ghost:hover{border-color:var(--green);color:var(--green)}
.btn-danger{background:transparent;color:var(--red);border-color:rgba(255,77,109,.35)}
.btn-danger:hover{background:rgba(255,77,109,.1)}
.btn-sm{padding:8px 14px;font-size:.85rem;border-radius:10px}

/* hero */
.hero{position:relative;overflow:hidden;padding:110px 0 90px;border-bottom:1px solid var(--line)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 30%,transparent 80%);opacity:.55}
.hero::after{content:"";position:absolute;width:720px;height:720px;right:-200px;top:-260px;background:radial-gradient(circle,rgba(34,227,160,.16),transparent 65%);pointer-events:none}
.hero-line{position:absolute;left:0;right:0;bottom:0;width:100%;height:260px;opacity:.5}
.hero-line path{fill:none;stroke:var(--green);stroke-width:2;stroke-dasharray:2400;stroke-dashoffset:2400;animation:draw 3.2s ease-out forwards;filter:drop-shadow(0 0 8px rgba(34,227,160,.6))}
@keyframes draw{to{stroke-dashoffset:0}}
.hero-in{position:relative;z-index:1}
.pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid var(--line2);border-radius:99px;background:rgba(15,20,31,.7);font-size:.82rem;color:var(--muted);font-weight:500}
.dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(34,227,160,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(34,227,160,0)}100%{box-shadow:0 0 0 0 rgba(34,227,160,0)}}
.hero h1{font-size:clamp(2.2rem,5.4vw,4.2rem);margin:22px 0 18px;max-width:880px}
.hero h1 em{font-style:normal;color:var(--green)}
.lead{color:var(--muted);font-size:1.08rem;max-width:620px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:32px 0 48px}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,150px));gap:12px}
.stats div{background:rgba(15,20,31,.75);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.stats b{display:block;font:700 1.6rem 'Space Grotesk',sans-serif}
.stats span{color:var(--dim);font-size:.8rem;text-transform:uppercase;letter-spacing:.08em}

/* toolbar */
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.tabs{display:flex;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px}
.tab{background:none;border:0;color:var(--muted);font:600 .9rem Inter,sans-serif;padding:9px 18px;border-radius:9px;cursor:pointer;transition:all .2s}
.tab:hover{color:var(--text)}
.tab.active{background:var(--panel2);color:var(--green);box-shadow:inset 0 0 0 1px var(--line2)}
.search{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:0 14px;color:var(--dim);min-width:280px;transition:border-color .2s}
.search:focus-within{border-color:var(--green)}
.search input{background:none;border:0;outline:0;color:var(--text);font:inherit;padding:11px 0;width:100%}

/* grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:20px}
.card{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;transition:transform .2s,border-color .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:0 20px 40px -20px rgba(0,0,0,.8),0 0 0 1px rgba(34,227,160,.15)}
.thumb{position:relative;aspect-ratio:16/9;background:var(--bg2);overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .thumb img{transform:scale(1.04)}
.thumb-ph{width:100%;height:100%;background:linear-gradient(135deg,#0d1522,#0a0e16);position:relative}
.thumb-ph::after{content:"";position:absolute;inset:25% 10%;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 40'%3E%3Cpath d='M0 32 L15 26 L25 30 L40 16 L55 22 L70 8 L85 14 L100 4' fill='none' stroke='%2322e3a0' stroke-width='1.5' opacity='.6'/%3E%3C/svg%3E") center/contain no-repeat}
.badge{position:absolute;top:12px;left:12px;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 10px;border-radius:8px;backdrop-filter:blur(8px)}
.detail .badge,.chips .badge{position:static}
.badge-kripto{background:rgba(255,181,71,.15);color:var(--amber);border:1px solid rgba(255,181,71,.35)}
.badge-bist{background:rgba(77,163,255,.15);color:var(--blue);border:1px solid rgba(77,163,255,.35)}
.badge-her-ikisi{background:rgba(34,227,160,.13);color:var(--green);border:1px solid rgba(34,227,160,.35)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.cat{font-size:.75rem;color:var(--green);font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.card h3{font-size:1.2rem;margin:6px 0 8px}
.card p{color:var(--muted);font-size:.9rem;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line2);font:500 .8rem var(--mono);color:var(--dim)}
.empty{text-align:center;padding:70px 20px;border:1px dashed var(--line2);border-radius:var(--radius);color:var(--muted)}
.empty h3{color:var(--text);font-size:1.4rem;margin-bottom:6px}
.empty.small{padding:30px;margin-top:10px}
.empty a{color:var(--green)}

/* steps */
.sec-title{font-size:clamp(1.6rem,3vw,2.3rem);margin-bottom:28px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.step b{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:rgba(34,227,160,.12);color:var(--green);font:700 1rem var(--mono);margin-bottom:14px}
.step h4{font-size:1.05rem;margin-bottom:6px}
.step p{color:var(--muted);font-size:.9rem}

/* detail */
.back{display:inline-block;color:var(--muted);text-decoration:none;margin-bottom:26px;font-size:.9rem}
.back:hover{color:var(--green)}
.detail{padding-top:40px}
.detail-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap;margin-bottom:30px}
.detail-head h1{font-size:clamp(2rem,4.2vw,3.2rem);margin:14px 0 10px}
.detail-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.detail-actions small{width:100%;color:var(--dim);font-family:var(--mono);font-size:.78rem}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:.78rem;padding:5px 10px;border-radius:8px;background:var(--panel2);border:1px solid var(--line);color:var(--muted)}
.gallery{margin-bottom:40px}
.g-main{display:block;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--bg2);cursor:zoom-in}
.g-main img{width:100%;max-height:640px;object-fit:contain;margin:auto}
.g-thumbs{display:flex;gap:10px;margin-top:12px;overflow-x:auto;padding-bottom:4px}
.g-thumbs button{flex:0 0 120px;aspect-ratio:16/10;border-radius:10px;overflow:hidden;border:2px solid var(--line);background:none;cursor:pointer;opacity:.6;transition:all .2s}
.g-thumbs button.active,.g-thumbs button:hover{opacity:1;border-color:var(--green)}
.g-thumbs img{width:100%;height:100%;object-fit:cover}
.detail-body{display:grid;grid-template-columns:1fr 300px;gap:40px;margin-bottom:40px}
.prose h2{font-size:1.5rem;margin:0 0 14px;padding-top:6px}
.prose h2:not(:first-child){margin-top:36px}
.prose h3{font-size:1.15rem;margin:22px 0 8px}
.prose p{color:#c3cbdb;margin-bottom:14px}
.prose ul,.prose ol{margin:0 0 16px 22px;color:#c3cbdb}
.prose li{margin-bottom:6px}
.prose li::marker{color:var(--green)}
.prose strong{color:var(--text)}
.prose code{font-family:var(--mono);font-size:.86em;background:var(--panel2);padding:2px 6px;border-radius:6px;color:var(--green)}
.side{display:flex;flex-direction:column;gap:16px}
.side-box{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.side-box h4{margin-bottom:12px;font-size:1rem}
.side-box ol{margin-left:18px;color:var(--muted);font-size:.9rem}
.side-box li{margin-bottom:4px}
.code-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#05070b}
.code-bar{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:var(--panel);border-bottom:1px solid var(--line);font:500 .82rem var(--mono);color:var(--muted)}
.code-bar>span{display:flex;align-items:center;gap:6px}
.d{width:10px;height:10px;border-radius:50%;display:inline-block}.d.r{background:#ff5f57}.d.y{background:#febc2e}.d.g{background:#28c840;margin-right:8px}
.code-bar div{display:flex;gap:8px}
.mini{background:var(--panel2);border:1px solid var(--line2);color:var(--text);font:500 .8rem Inter,sans-serif;padding:6px 12px;border-radius:8px;cursor:pointer;text-decoration:none}
.mini:hover{border-color:var(--green);color:var(--green)}
pre{max-height:620px;overflow:auto;padding:20px;font:13px/1.7 var(--mono);color:#cfd8e8;tab-size:4}
pre .kw{color:#ff7ab2}pre .fn{color:#5ec8ff}pre .str{color:#a5e36b}pre .num{color:#ffb547}pre .com{color:#5d6780;font-style:italic}
.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,120px);background:var(--green);color:#03140d;font-weight:600;padding:12px 20px;border-radius:12px;transition:transform .3s;z-index:100}
.toast.show{transform:translate(-50%,0)}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);display:grid;place-items:center;z-index:200;padding:20px;cursor:zoom-out}
.lightbox[hidden]{display:none}
.lightbox img{max-width:100%;max-height:100%;border-radius:10px}

/* footer */
.foot{border-top:1px solid var(--line);padding:36px 0;margin-top:40px;background:var(--bg2)}
.foot-in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.foot p{color:var(--dim);font-size:.86rem}
.foot .disc{max-width:520px}

/* ======= admin ======= */
.admin-shell{padding:40px 0 80px}
.admin-top{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.admin-top h1{font-size:1.8rem}
.admin-top .row{display:flex;gap:10px;flex-wrap:wrap}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.login-box{max-width:400px;margin:90px auto}
.login-box h1{font-size:1.6rem;margin-bottom:6px}
.login-box p{color:var(--muted);margin-bottom:22px;font-size:.92rem}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.field label{font-weight:600;font-size:.88rem}
.field small{color:var(--dim);font-size:.8rem}
.field input,.field select,.field textarea{background:var(--bg2);border:1px solid var(--line2);border-radius:10px;padding:11px 13px;color:var(--text);font:inherit;outline:0;transition:border-color .2s;width:100%}
.field textarea{min-height:140px;resize:vertical}
.field textarea.code{font:13px/1.6 var(--mono);min-height:360px;tab-size:4;white-space:pre}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--green)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}
.form-grid .full{grid-column:1/-1}
.alert{padding:12px 16px;border-radius:10px;margin-bottom:20px;font-size:.92rem}
.alert-ok{background:rgba(34,227,160,.1);border:1px solid rgba(34,227,160,.35);color:var(--green)}
.alert-err{background:rgba(255,77,109,.1);border:1px solid rgba(255,77,109,.35);color:var(--red)}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.table th{color:var(--dim);font-size:.78rem;text-transform:uppercase;letter-spacing:.07em;font-weight:600}
.table td img{width:72px;height:44px;object-fit:cover;border-radius:6px;border:1px solid var(--line)}
.table .act{display:flex;gap:6px;justify-content:flex-end}
.table form{display:inline}
.dropzone{border:2px dashed var(--line2);border-radius:12px;padding:26px;text-align:center;color:var(--muted);cursor:pointer;transition:all .2s;position:relative}
.dropzone:hover,.dropzone.over{border-color:var(--green);background:rgba(34,227,160,.05);color:var(--text)}
.dropzone input{position:absolute;inset:0;opacity:0;cursor:pointer}
.previews,.existing{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.previews img{width:120px;height:75px;object-fit:cover;border-radius:8px;border:1px solid var(--line2)}
.existing label{position:relative;cursor:pointer}
.existing img{width:140px;height:88px;object-fit:cover;border-radius:8px;border:2px solid var(--line2)}
.existing input{position:absolute;top:6px;left:6px;accent-color:var(--red);width:18px;height:18px}
.existing input:checked+img{opacity:.35;border-color:var(--red)}
.hint{color:var(--dim);font-size:.82rem;margin-top:4px}

@media (max-width:900px){
  .steps{grid-template-columns:1fr 1fr}
  .detail-body{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .nav-links{gap:14px}.nav-links a:last-child{display:none}
  .hero{padding:70px 0 60px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .search{min-width:0;width:100%}
  .tabs{width:100%}.tab{flex:1}
  .section{padding:48px 0}
  .table .hide-sm{display:none}
}