:root{
  --bg:#0c0f1a;
  --bg-2:#11162a;
  --panel:#161c33;
  --panel-2:#1c2440;
  --line:#27304f;
  --text:#eaf0ff;
  --muted:#94a0c4;
  --brand:#6c5cff;       /* mor */
  --brand-2:#00e6c3;     /* turkuaz */
  --accent:#ff7a45;      /* turuncu vurgu */
  --good:#36e07a;
  --radius:18px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:radial-gradient(1200px 600px at 80% -10%,rgba(108,92,255,.18),transparent 60%),
              radial-gradient(900px 500px at -10% 10%,rgba(0,230,195,.12),transparent 55%),var(--bg);
  color:var(--text);font-family:"Inter",system-ui,sans-serif;line-height:1.55;
}
a{color:inherit;text-decoration:none}
.wrap{width:min(1180px,92%);margin-inline:auto}
.hidden{display:none!important}
h1,h2,h3,h4{font-family:"Sora",sans-serif;margin:0;line-height:1.15}
.grad{background:linear-gradient(90deg,var(--brand-2),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent}

/* Topbar */
.topbar{background:linear-gradient(90deg,var(--brand),#4a3fd6);font-size:.82rem}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;padding:.5rem 0;gap:1rem}
.topbar-tag{color:#e9e6ff}
.topbar-links{display:flex;align-items:center;gap:1rem}
.topbar-links a{color:#fff;opacity:.9}
.store-btn{background:var(--accent);color:#1a0f08!important;padding:.35rem .8rem;border-radius:999px;font-weight:700;opacity:1!important}
.store-btn:hover{filter:brightness(1.08)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(12,15,26,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:1.2rem;padding:.85rem 0}
.brand{display:flex;align-items:center;gap:.5rem;font-family:"Sora";font-weight:800;font-size:1.25rem}
.brand-mark{color:var(--brand-2);letter-spacing:-3px}
.brand-name span{color:var(--brand-2)}
.main-nav{display:flex;gap:1.1rem;margin-left:.5rem;flex-wrap:wrap}
.main-nav a{color:var(--muted);font-weight:500;font-size:.92rem;padding:.3rem 0;position:relative}
.main-nav a:hover{color:var(--text)}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--brand-2);transition:width .2s}
.main-nav a:hover::after{width:100%}
.slogan{font-family:"Sora",sans-serif;font-weight:600;font-size:1rem;background:linear-gradient(90deg,var(--brand-2),var(--brand));-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap}
.nav-cta{margin-left:auto;background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#0b0f1a;font-weight:700;padding:.5rem 1.1rem;border-radius:999px}
.burger{display:none;background:none;border:0;color:var(--text);font-size:1.5rem;margin-left:auto;cursor:pointer}

/* Hero */
.hero{padding:4.5rem 0 3rem}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:2.5rem;align-items:center}
.pill{display:inline-block;background:var(--panel);border:1px solid var(--line);color:var(--brand-2);padding:.35rem .8rem;border-radius:999px;font-size:.82rem;font-weight:600}
.hero h1{font-size:clamp(2.1rem,5vw,3.4rem);font-weight:800;margin:1rem 0}
.hero p{color:var(--muted);font-size:1.05rem;max-width:46ch}
.hero-actions{display:flex;gap:.8rem;margin:1.6rem 0}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:.8rem 1.4rem;border-radius:12px;font-weight:700;cursor:pointer;border:1px solid transparent;transition:transform .15s,filter .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#0b0f1a}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn.full{width:100%;margin-top:.4rem}
.hero-stats{display:flex;gap:2rem;margin-top:1.8rem}
.hero-stats strong{display:block;font-family:"Sora";font-size:1.6rem;color:var(--text)}
.hero-stats span{color:var(--muted);font-size:.85rem}

/* Hero art */
.hero-art{display:grid;place-items:center;min-height:300px;perspective:900px}
.cube{position:relative;width:160px;height:160px;transform-style:preserve-3d;animation:spin 14s linear infinite}
.cube span{position:absolute;width:160px;height:160px;background:linear-gradient(135deg,rgba(108,92,255,.55),rgba(0,230,195,.35));border:1px solid rgba(255,255,255,.25);opacity:.9}
.cube span:nth-child(1){transform:translateZ(80px)}
.cube span:nth-child(2){transform:rotateY(180deg) translateZ(80px)}
.cube span:nth-child(3){transform:rotateY(90deg) translateZ(80px)}
.cube span:nth-child(4){transform:rotateY(-90deg) translateZ(80px)}
.cube span:nth-child(5){transform:rotateX(90deg) translateZ(80px)}
.cube span:nth-child(6){transform:rotateX(-90deg) translateZ(80px)}
@keyframes spin{from{transform:rotateX(-20deg) rotateY(0)}to{transform:rotateX(-20deg) rotateY(360deg)}}

/* Sections */
.section-head{text-align:center;max-width:620px;margin:0 auto 2.2rem}
.section-head h2{font-size:clamp(1.6rem,3.5vw,2.3rem)}
.section-head p{color:var(--muted);margin-top:.5rem}

/* Calculator */
.calc{padding:3.5rem 0}
.calc-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:1.5rem}
.calc-panel{background:linear-gradient(180deg,var(--panel),var(--bg-2));border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;box-shadow:var(--shadow)}
.viewer-panel{position:relative;overflow:hidden}

/* Tarama göstergesi */
.scan-overlay{position:absolute;inset:0;z-index:5;display:grid;place-items:center;background:rgba(10,13,24,.88);backdrop-filter:blur(4px);border-radius:var(--radius)}
.scan-box{text-align:center;position:relative;width:200px;padding:1rem}
.scan-cube{font-size:2.6rem;letter-spacing:-6px;color:var(--brand-2);animation:scanpulse 1.2s ease-in-out infinite}
.scan-line{position:absolute;left:10%;right:10%;top:0;height:2px;background:linear-gradient(90deg,transparent,var(--brand-2),transparent);box-shadow:0 0 12px var(--brand-2);animation:scanmove 1.3s ease-in-out infinite}
.scan-text{font-family:"Sora",sans-serif;font-weight:600;margin:.9rem 0 .2rem;color:var(--text)}
.scan-sub{color:var(--muted);font-size:.8rem;margin:0}
@keyframes scanmove{0%{top:8%}50%{top:72%}100%{top:8%}}
@keyframes scanpulse{0%,100%{opacity:.55;transform:scale(.96)}50%{opacity:1;transform:scale(1.04)}}
.dropzone{border:2px dashed var(--line);border-radius:14px;min-height:340px;display:grid;place-items:center;text-align:center;transition:border-color .2s,background .2s;cursor:pointer}
.dropzone.drag{border-color:var(--brand-2);background:rgba(0,230,195,.06)}
.dz-icon{font-size:2.4rem}
.dz-title{font-family:"Sora";font-weight:600;font-size:1.15rem;margin:.6rem 0 .2rem}
.dz-sub{color:var(--muted);margin:.2rem 0}
.dz-hint{color:var(--muted);font-size:.78rem;margin-top:.6rem}
.linkbtn{background:none;border:0;color:var(--brand-2);font-weight:600;cursor:pointer;padding:0;font-size:inherit}
.viewer-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:.6rem}
.file-name{font-weight:600;font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:70%}
.canvas-holder{width:100%;height:330px;border-radius:12px;overflow:hidden;background:#0a0d18;border:1px solid var(--line)}
.canvas-holder canvas{display:block}
.dims{display:flex;gap:1rem;justify-content:center;color:var(--muted);font-size:.82rem;margin-top:.7rem;flex-wrap:wrap}
.dims b{color:var(--text)}

/* Options */
.field{margin-bottom:1.1rem}
.field>label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.45rem}
select,input[type=number]{width:100%;background:var(--panel-2);border:1px solid var(--line);color:var(--text);padding:.7rem .8rem;border-radius:10px;font:inherit}
select:focus,input:focus{outline:2px solid var(--brand)}
.note{display:block;color:var(--muted);font-size:.78rem;margin-top:.35rem}
.seg{display:flex;background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:.25rem;gap:.25rem}
.seg-btn{flex:1;background:none;border:0;color:var(--muted);padding:.55rem;border-radius:8px;font-weight:600;cursor:pointer}
.seg-btn.active{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#0b0f1a}
.swatches{display:flex;flex-wrap:wrap;gap:.5rem}
.swatch{width:30px;height:30px;border-radius:8px;border:2px solid transparent;cursor:pointer;position:relative}
.swatch.active{border-color:#fff;box-shadow:0 0 0 2px var(--brand)}
.badge{background:var(--panel-2);border:1px solid var(--line);padding:.05rem .5rem;border-radius:999px;font-size:.78rem;color:var(--brand-2)}
input[type=range]{width:100%;accent-color:var(--brand)}

/* Result */
.result{margin-top:.6rem;background:var(--panel-2);border:1px solid var(--line);border-radius:14px;padding:1.1rem}
.result-empty{color:var(--muted);text-align:center;padding:1rem 0}
.result-empty-sub{display:block;font-size:.8rem;margin-top:.5rem;color:var(--brand-2)}
.result-row{display:flex;justify-content:space-between;padding:.5rem 0;border-bottom:1px dashed var(--line)}
.result-row span{color:var(--muted)}
.result-row.total{border-bottom:0;margin-top:.3rem}
.result-row.total span{color:var(--text);font-weight:600}
.result-row.total strong{font-family:"Sora";font-size:1.5rem;color:var(--brand-2)}
.result-note{color:var(--muted);font-size:.76rem;margin:.6rem 0}

/* How */
.how{padding:3rem 0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.step-no{font-family:"Sora";font-weight:800;color:var(--brand);font-size:1.4rem}
.step h3{margin:.4rem 0;font-size:1.2rem}
.step p{color:var(--muted);margin:0}

/* Materials */
.materials{padding:3rem 0 4rem}
.mat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.mat-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1.1rem;transition:transform .15s,border-color .15s}
.mat-card:hover{transform:translateY(-4px);border-color:var(--brand-2)}
.mat-card h4{font-size:1rem}
.mat-card .tag{display:inline-block;font-size:.72rem;color:var(--brand-2);background:rgba(0,230,195,.1);padding:.15rem .5rem;border-radius:999px;margin-bottom:.5rem}
.mat-card p{color:var(--muted);font-size:.84rem;margin:.3rem 0 0}

/* Footer */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding-top:2.5rem;margin-top:2rem}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1.4fr 1fr;gap:1.5rem;padding-bottom:2rem}
.footer-col h4{margin-bottom:.7rem;font-size:1rem}
.footer-col p{color:var(--muted);font-size:.88rem;margin:.35rem 0}
.footer-col a:hover{color:var(--brand-2)}
.footer-tag{margin:.6rem 0 .9rem}
.footer-bottom{display:flex;justify-content:space-between;color:var(--muted);font-size:.8rem;border-top:1px solid var(--line);padding:1rem 0}

/* Responsive */
@media (max-width:980px){
  .hero-grid,.calc-grid{grid-template-columns:1fr}
  .hero-art{order:-1}
  .mat-cards{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .main-nav,.nav-cta{display:none}
  .main-nav.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--bg-2);padding:1rem;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .header-inner{position:relative}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr}
  .mat-cards,.footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:1.2rem}
  .footer-bottom{flex-direction:column;gap:.4rem}
}