:root{
  --green:#16a34a; --green-d:#15803d; --ink:#0f172a; --muted:#64748b;
  --bg:#f1f5f9; --card:#ffffff; --line:#e2e8f0; --warn:#dc2626;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font:16px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink)}
.screen{max-width:480px;margin:0 auto;min-height:100vh;padding:24px 20px 40px;display:flex;flex-direction:column;justify-content:safe center}
h1{font-size:1.05rem;letter-spacing:.14em;text-transform:uppercase;color:var(--green-d);margin:.2rem 0 1rem;text-align:center}
.sub{color:var(--muted);margin:-.6rem 0 1.2rem;text-align:center}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
label{display:block;font-weight:600;margin:0 0 .4rem;text-align:center}
input[type=tel],input[type=number],input[type=text]{
  width:100%;padding:.55em .6em;border:2px solid var(--line);border-radius:12px;
  background:#fff;font-size:1.4rem}
input[type=tel],input[type=number]{font-size:2rem;text-align:center;letter-spacing:.3em}
input:focus{outline:none;border-color:var(--green)}
::placeholder{color:#94a3b8;opacity:1}            /* large grey hint */
input:focus::placeholder{color:transparent}        /* clears on tap / click */
.btn{display:flex;align-items:center;justify-content:center;width:100%;min-height:58px;border:0;border-radius:14px;text-decoration:none;
  font-size:1.15rem;font-weight:700;color:#fff;background:var(--green);cursor:pointer;margin-top:14px}
.btn:active{background:var(--green-d)}
.btn.secondary{background:#fff;color:var(--ink);border:2px solid var(--line)}
.btn.ghost{background:transparent;color:var(--muted);min-height:auto;font-size:1rem;margin-top:8px}
.btn.danger{background:var(--warn);color:#fff}
.btn.danger:active{background:#b91c1c}
.row{display:flex;gap:10px}
.row .btn{margin-top:0}
.choice{display:flex;gap:10px;flex-wrap:wrap;margin:.3rem 0 1rem}
.choice button{flex:1;min-width:90px;min-height:64px;border:2px solid var(--line);background:#fff;
  border-radius:14px;font-size:1.1rem;font-weight:700;cursor:pointer}
.choice button[aria-pressed=true]{border-color:var(--green);background:#ecfdf5;color:var(--green-d)}
.err{background:#fef2f2;color:var(--warn);border:1px solid #fecaca;border-radius:12px;padding:12px;margin:0 0 14px;font-weight:600;text-align:center}
.namepick button{width:100%;text-align:center;min-height:60px;font-size:1.1rem;margin-top:10px}
/* guided machine */
.crumbs{color:var(--muted);font-size:.92rem;margin-bottom:.5rem}
.machine{font-size:1.9rem;font-weight:800;margin:.2rem 0 .8rem;line-height:1.1}
.specs{display:grid;grid-template-columns:auto 1fr;gap:.45rem 1rem;font-size:1.15rem;margin:0 0 1rem}
.specs dt{color:var(--muted)} .specs dd{margin:0;font-weight:700;text-align:right}
.weight{font-size:2.4rem;color:var(--green-d)}
.last{color:var(--muted);font-size:.95rem;margin:.2rem 0 1rem}
.bar{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin-top:16px}
.bar>span{display:block;height:100%;background:var(--green)}
.grad{color:var(--green-d);font-weight:700}
ul.summary{list-style:none;padding:0;margin:0}
ul.summary li{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line)}
.spacer{flex:1}
.brand{text-align:center;color:var(--muted);font-size:.8rem;margin-top:18px;letter-spacing:.1em}