:root{
  --bg:#0a0a0a;
  --panel:#121216;
  --text:#f5f5f5;
  --muted:#9aa0a6;
  --brand:#e30613;
  --brand-2:#ff3b3b;
  --shadow:0 10px 40px rgba(227,6,19,.25);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:radial-gradient(60vw 60vw at 50% -10%, rgba(227,6,19,.12), transparent 50%), var(--bg);color:var(--text);font-family:Inter,system-ui,Segoe UI,Roboto,Arial,sans-serif}
a{color:#fff;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
header{position:sticky;top:0;z-index:50;background:rgba(10,10,10,.75);backdrop-filter:saturate(130%) blur(8px);border-bottom:1px solid #1f1f1f}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;gap:14px;align-items:center}
.brand img{height:40px;width:auto;filter:drop-shadow(0 6px 18px rgba(0,0,0,.5))}
.brand .name{font-weight:800;letter-spacing:.5px}
.nav a.link{margin:0 14px;color:#ddd}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:999px;background:linear-gradient(180deg,var(--brand),var(--brand-2));box-shadow:var(--shadow);border:none;color:#fff;font-weight:700;cursor:pointer;transition:transform .2s ease, box-shadow .2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 50px rgba(227,6,19,.35)}
.hero{position:relative;min-height:72vh;display:grid;place-items:center;overflow:hidden;border-bottom:1px solid #1f1f1f}
.hero-inner{position:relative;z-index:2;text-align:center;padding:88px 0}
.hero h1{font-size:54px;line-height:1.05;margin:0 0 14px}
.hero p{max-width:900px;margin:0 auto 22px;color:#cfd3d7;font-size:18px}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.badge{display:inline-block;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);padding:8px 14px;border-radius:999px;color:#cfd3d7;margin:8px auto 0}
/* spinning gear */
.gear-bg{position:absolute;inset:-20% -10% auto -10%;height:120vh;pointer-events:none;opacity:.18;filter:drop-shadow(0 14px 40px rgba(227,6,19,.18))}
/* floating tool outlines */
.tools{position:absolute;inset:0;pointer-events:none;opacity:.22}
.tool{position:absolute;stroke:#fff;stroke-opacity:.5;fill:none}
.tool svg{height:120px;width:auto;opacity:.9;filter:drop-shadow(0 6px 14px rgba(0,0,0,.6))}
.tool.t1{top:18%;left:8%}
.tool.t2{top:62%;left:14%}
.tool.t3{top:28%;right:12%}
/* inspector + lathe placeholders (silhouette aesthetic) */
.figure{position:absolute;bottom:60px;right:8%;height:260px;width:220px;opacity:.7;filter:grayscale(1) contrast(1.1) drop-shadow(0 10px 30px rgba(0,0,0,.6))}
.figure .helmet{position:absolute;top:18px;left:50%;transform:translateX(-50%);height:28px;width:46px;background:linear-gradient(180deg,#ffde59,#caa300);border-radius:6px}
.figure .body{position:absolute;bottom:0;left:0;right:0;height:82%;background:linear-gradient(180deg,#2b2f36,#131519);border-radius:14px}
.figure .tool{position:absolute;top:38%;right:-10px;height:8px;width:120px;background:#b9c2c9;border-radius:4px;box-shadow:inset 0 0 0 2px #8b949e}
.figure.animate{animation:bob 5s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.lathe{position:relative;margin:-40px auto 40px;max-width:980px;padding:24px;border-radius:20px;background:linear-gradient(180deg,#0d0d10,#0b0b0b);border:1px solid #1d1d21;box-shadow:0 10px 50px rgba(0,0,0,.5)}
.lathe::before{content:"";position:absolute;inset:-2px;z-index:-1;border-radius:22px;background:radial-gradient(60% 30% at 10% 0%,rgba(227,6,19,.35),transparent 60%),radial-gradient(40% 20% at 100% 0%,rgba(227,6,19,.25),transparent 60%)}
.lathe .bar{height:8px;background:linear-gradient(90deg,#333,#666,#333);border-radius:999px;overflow:hidden;margin:8px 0}
.lathe .bar .chip{height:100%;width:18%;background:#bbb;animation:move 2.6s linear infinite}
@keyframes move{0%{transform:translateX(-20%)}100%{transform:translateX(520%)}}
.section{padding:60px 0}
h2{font-size:32px;margin:0 0 12px}
.card{background:var(--panel);border:1px solid #1f1f24;border-radius:18px;box-shadow:0 10px 40px rgba(0,0,0,.3);padding:20px}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.col-6{grid-column:span 6}
.col-12{grid-column:span 12}
@media (max-width:900px){.col-6{grid-column:span 12} .hero h1{font-size:40px} .figure{display:none}}
/* upload funnel */
.stepper{display:flex;gap:10px;margin:12px 0 24px}
.step{height:6px;flex:1;background:#232327;border-radius:99px;overflow:hidden}
.step.fill{background:linear-gradient(90deg,var(--brand),#8a0c14)}
.input, select, .drop{width:100%;background:#1a1a1f;color:#fff;border:1px solid #2a2a31;border-radius:12px;padding:14px 16px;outline:none}
.drop{display:flex;align-items:center;justify-content:center;border-style:dashed;gap:8px}
.actions{display:flex;gap:12px;margin-top:16px}
.error{color:#ff8080;font-size:13px;margin-top:6px;display:none}
/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:100}
.modal .sheet{background:#0e0e12;border:1px solid #1b1b21;border-radius:20px;box-shadow:0 20px 80px rgba(0,0,0,.6);padding:24px;max-width:520px;width:90%}
footer{border-top:1px solid #1f1f1f;background:#0a0a0a;padding:22px 0;color:#c2c6cb}
.small{color:#9aa0a6;font-size:14px}