:root{
  --bg:#07090a;--bg2:#0b0e10;--surface:#10151a;--surface2:#151c22;--border:rgba(255,255,255,.08);--border2:rgba(70,212,34,.28);
  --text:#eef2f0;--muted:#9aa5a0;--green:#46d422;--green-dark:#2f9017;--glow:rgba(70,212,34,.35);--red:#ef4444;
  --r:14px;--rs:9px;--head:'Rajdhani',system-ui,sans-serif;--body:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 15px/1.5 var(--body);padding-bottom:92px}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}

.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:22px;padding:0 20px;height:64px;background:rgba(7,9,10,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px;font:700 22px var(--head);letter-spacing:.04em}
.topbar nav{display:flex;gap:6px;flex:1;overflow-x:auto;scrollbar-width:none}
.topbar nav a{padding:8px 12px;border-radius:8px;color:var(--muted);white-space:nowrap;font-weight:500;font-size:14px}
.topbar nav a:hover,.topbar nav a.cur{color:var(--text);background:var(--surface2)}
.topbar nav a.cur{color:var(--green)}
.wa{background:#1fae52;color:#fff;font-weight:600;font-size:13px;padding:8px 14px;border-radius:999px}

.cfg{max-width:1280px;margin:0 auto;padding:28px 20px 20px}
.cfg-head{text-align:center;margin-bottom:26px}
.eyebrow{margin:0 0 4px;color:var(--green);font:600 13px var(--head);letter-spacing:.28em}
.cfg-head h1{margin:0;font:700 clamp(30px,5vw,52px)/1.05 var(--head);letter-spacing:.02em}
.sub{margin:10px auto 0;max-width:640px;color:var(--muted)}

.cfg-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:26px;align-items:start}
.stage{position:sticky;top:80px}
.stage-box{aspect-ratio:62/100;max-height:calc(100vh - 200px);width:100%;margin:0 auto;border-radius:var(--r);border:1px solid var(--border2);
  background:#f7f7f7;box-shadow:0 0 60px -20px var(--glow);padding:6px;overflow:hidden;position:relative}
.stage-box canvas.chair-cv{display:block;width:100%;height:100%;object-fit:contain}
.stage-tip{position:absolute;z-index:3;pointer-events:none;background:rgba(10,14,17,.92);color:#fff;font-size:12px;font-weight:600;padding:6px 10px;border-radius:8px;white-space:nowrap;border:1px solid var(--border2)}
.stage-box[data-loading]::after{content:'Koltuk yükleniyor…';position:absolute;inset:0;display:grid;place-items:center;color:#51606a;font:600 15px var(--body)}
.stage-box[data-loading=err]::after{content:'Önizleme yüklenemedi. Sayfayı yenileyin.'}
.stage-tools{display:flex;gap:8px;justify-content:center;margin-top:12px;flex-wrap:wrap}
.stage-note{text-align:center;color:var(--muted);font-size:12px;margin:10px 0 0}

.panel{display:flex;flex-direction:column;gap:14px;min-width:0}
.group{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:16px 16px 18px}
.g-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap}
.g-head h2{margin:0;font:700 20px var(--head);letter-spacing:.06em;text-transform:uppercase}
.g-val{color:var(--green);font-size:13px;font-weight:600}
.g-hint{margin:2px 0 12px;color:var(--muted);font-size:13px}

.sw-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:10px}
.sw{aspect-ratio:1;border-radius:50%;border:2px solid rgba(255,255,255,.14);position:relative;padding:0;transition:transform .12s}
.sw.light{border-color:rgba(0,0,0,.25)}
.sw:hover:not(:disabled){transform:scale(1.1)}
.sw.on{outline:2px solid var(--green);outline-offset:3px;box-shadow:0 0 14px var(--glow)}
.sw.on::after{content:"✓";position:absolute;inset:0;display:grid;place-items:center;font-weight:800;font-size:15px;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.8)}
.sw.light.on::after{color:#111;text-shadow:none}
.sold{opacity:.35;cursor:not-allowed}

.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(138px,1fr));gap:10px}
.card{display:flex;flex-direction:column;gap:6px;text-align:left;background:var(--surface2);border:1px solid var(--border);border-radius:var(--rs);padding:8px;transition:border-color .15s,transform .12s}
.card:hover:not(:disabled){border-color:var(--border2);transform:translateY(-1px)}
.card.on{border-color:var(--green);box-shadow:0 0 0 1px var(--green),0 0 18px -4px var(--glow)}
.thumb{aspect-ratio:16/11;border-radius:7px;overflow:hidden;background:radial-gradient(ellipse at 50% 40%,#fff,#d9e0e4);display:grid;place-items:center}
.thumb svg,.thumb img,.thumb canvas{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.c-name{font-weight:600;font-size:13px;line-height:1.25}
.c-price{font-size:12px;color:var(--muted)}
.card.on .c-price{color:var(--green)}

.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg button{flex:1;min-width:110px;padding:10px 12px;border-radius:var(--rs);border:1px solid var(--border);background:var(--surface2);font-weight:600;font-size:13px}
.seg button.on{border-color:var(--green);color:var(--green);background:rgba(70,212,34,.08)}
.seg.small{margin:12px 0}
.seg.small button{min-width:80px;padding:8px}
.logo-up{margin-top:14px}
.drop{display:block;border:1.5px dashed var(--border2);border-radius:var(--rs);padding:16px;text-align:center;color:var(--muted);cursor:pointer;position:relative}
.drop:hover{border-color:var(--green);color:var(--text)}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.rng{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;margin:8px 0}
.rng input{flex:1;accent-color:var(--green)}

.ghost{background:var(--surface2);border:1px solid var(--border);border-radius:999px;padding:9px 16px;font-weight:600;font-size:13px}
.ghost:hover{border-color:var(--border2)}
.cta{background:var(--green);color:#06210a;border:0;border-radius:999px;padding:13px 26px;font:700 16px var(--head);letter-spacing:.06em;text-transform:uppercase;display:inline-block;text-align:center}
.cta:hover{background:#5be834;box-shadow:0 0 22px var(--glow)}
.cta:disabled{opacity:.6;cursor:wait}
.cta.wide{width:100%;margin-top:6px}

.bar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;align-items:center;justify-content:center;gap:14px;padding:12px 18px;background:rgba(10,14,17,.96);backdrop-filter:blur(10px);border-top:1px solid var(--border2)}
.bar-price{display:flex;flex-direction:column;line-height:1.1;margin-right:auto;max-width:1280px}
.bar-price small{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.12em}
.bar-price strong{font:700 28px var(--head);color:var(--green);white-space:nowrap}

.dlg{background:var(--surface);color:var(--text);border:1px solid var(--border2);border-radius:var(--r);padding:24px;width:min(460px,calc(100vw - 28px));max-height:90vh;overflow:auto}
.dlg::backdrop{background:rgba(0,0,0,.72)}
.dlg h3{margin:0 0 6px;font:700 24px var(--head);letter-spacing:.04em;text-transform:uppercase}
.dlg .x{position:absolute;right:12px;top:10px;background:none;border:0;font-size:18px;color:var(--muted)}
.dlg label{display:block;margin:10px 0;font-size:13px;color:var(--muted);font-weight:500}
.dlg input,.dlg textarea{display:block;width:100%;margin-top:4px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--rs);color:var(--text);padding:11px 12px;font:inherit}
.dlg input:focus,.dlg textarea:focus{outline:2px solid var(--green);outline-offset:0}
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0}
.err{color:#ff8a8a;font-size:13px;min-height:18px;margin:4px 0}
.sum{list-style:none;padding:0;margin:12px 0}
.sum li{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--border);font-size:14px}
.sum li b{color:var(--green);white-space:nowrap;font-weight:600}
.sum-total{display:flex;justify-content:space-between;align-items:baseline;font:700 18px var(--head)}
.sum-total strong{font-size:30px;color:var(--green)}
.code{font:700 24px var(--head);letter-spacing:.08em;color:var(--green)}

@media (max-width:900px){
  .cfg-grid{grid-template-columns:minmax(0,1fr)}
  .stage{position:sticky;top:64px;z-index:20;background:var(--bg);padding:8px 0}
  .stage-box{max-height:42vh;aspect-ratio:auto;height:42vh;padding:4px}
  .stage-tools,.stage-note{display:none}
  .topbar{gap:10px;padding:0 12px}
  .wa{display:none}
}
@media (max-width:520px){
  .bar{gap:8px;padding:10px 12px}
  .bar-price strong{font-size:22px}
  .cta{padding:12px 16px;font-size:14px}
}

/* ---- v3: bölümler, hazır kombinler, liste seçenekleri ---- */
.mini-title{margin:0 0 8px;color:var(--muted);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase}
.presets-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:12px 14px}
.presets{display:flex;gap:8px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 85%,transparent);mask-image:linear-gradient(90deg,#000 85%,transparent)}
.presets::-webkit-scrollbar,.sec-tabs::-webkit-scrollbar{display:none}
.preset{flex:0 0 auto;display:flex;align-items:center;gap:8px;background:var(--surface2);border:1px solid var(--border);border-radius:999px;padding:6px 12px 6px 6px;font-size:13px;font-weight:600;white-space:nowrap}
.preset:hover{border-color:var(--border2)}
.preset.on{border-color:var(--green);color:var(--green)}
.pdot{display:flex;width:26px;height:26px;border-radius:50%;overflow:hidden;border:1px solid rgba(255,255,255,.2);transform:rotate(-35deg)}
.pdot i{flex:1}
.sec-tabs{position:sticky;top:64px;z-index:15;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;background:rgba(7,9,10,.94);backdrop-filter:blur(8px);padding:8px 0;margin:-4px 0}
.sec-tabs button{flex:0 0 auto;display:flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:8px 14px;font-weight:600;font-size:13px;color:var(--muted)}
.sec-tabs button .n{display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--surface2);font-size:11px}
.sec-tabs button.on{color:#06210a;background:var(--green);border-color:var(--green)}
.sec-tabs button.on .n{background:rgba(0,0,0,.18);color:#06210a}
#groups{display:flex;flex-direction:column;gap:14px}
.group.flash{animation:flash 1.2s ease}
@keyframes flash{0%,40%{box-shadow:0 0 0 2px var(--green),0 0 30px -6px var(--glow)}100%{box-shadow:none}}
.sw-grid{grid-template-columns:repeat(auto-fill,minmax(36px,1fr));gap:9px}
.list-grid{display:flex;flex-direction:column;gap:8px}
.li{display:flex;align-items:center;gap:12px;text-align:left;background:var(--surface2);border:1px solid var(--border);border-radius:var(--rs);padding:11px 12px}
.li:hover:not(:disabled){border-color:var(--border2)}
.li.on{border-color:var(--green);box-shadow:0 0 0 1px var(--green)}
.li-radio{flex:0 0 18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.3)}
.li.on .li-radio{border-color:var(--green);background:radial-gradient(circle,var(--green) 0 4px,transparent 5px)}
.li-img{flex:0 0 56px;height:42px;object-fit:cover;border-radius:6px}
.li-txt{flex:1;display:flex;flex-direction:column;gap:2px}
.li-txt b{font-size:14px}
.li-txt small{color:var(--muted);font-size:12px}
.li .c-price{white-space:nowrap}
.li.on .c-price{color:var(--green)}
.c-note{font-size:11px;color:var(--muted);line-height:1.3}
.thumb{background:#f7f7f7}
.thumb{position:relative}
.thumb canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;mix-blend-mode:normal}
.seg.small button{min-width:0;flex:1 1 calc(50% - 6px)}
@media (max-width:900px){
  .stage-box{aspect-ratio:auto}
  .sec-tabs{top:calc(64px + 42vh + 16px)}
}