:root{
  --bg:#09111f;
  --bg2:#111827;
  --card:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.08);
  --text:#f8fafc;
  --muted:#a7b4c8;
  --accent:#22c55e;
  --accent2:#38bdf8;
  --radius:22px;
  --shadow:0 14px 40px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
body{
  margin:0;
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56,189,248,.18), transparent 25%),
    radial-gradient(circle at top right, rgba(34,197,94,.18), transparent 20%),
    linear-gradient(180deg,#07101d,#101827 55%,#07101d);
}
.app-shell{max-width:760px;margin:0 auto;padding:18px 14px 28px}
.hero{
  background:linear-gradient(135deg, rgba(56,189,248,.20), rgba(34,197,94,.16));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  border-radius:28px;
  padding:22px 18px;
  margin-bottom:16px;
}
.hero-badge{display:inline-block;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.09);font-size:13px;margin-bottom:12px}
h1{font-size:30px;line-height:1.05;margin:0 0 8px}
p{margin:0;color:#d8e3f2;line-height:1.45}
.screen{display:none}
.screen.active{display:block}
.menu-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.menu-card,.info-card,.form-card,.empty-card,.result-card,.list-card{
  border:1px solid var(--line);
  background:var(--card);
  backdrop-filter:blur(10px);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.menu-card{
  min-height:138px;padding:16px;border:none;text-align:left;color:var(--text);cursor:pointer;
  display:flex;flex-direction:column;justify-content:space-between;
}
.menu-card.wide{grid-column:1/-1;min-height:110px}
.menu-card .emoji{font-size:30px}
.menu-card .label{font-size:18px;font-weight:800}
.menu-card .desc{font-size:13px;color:var(--muted);line-height:1.35}
.info-card{margin-top:14px;padding:16px;display:grid;gap:6px}
.screen-head{display:flex;align-items:center;gap:10px;margin:6px 0 14px}
.screen-head h2{margin:0;font-size:24px}
.back-btn{
  width:40px;height:40px;border-radius:14px;border:1px solid var(--line);background:var(--card);color:var(--text)
}
.form-card,.empty-card{padding:16px}
.empty-card{text-align:center}
.big-emoji{font-size:42px;margin-bottom:6px}
label{display:block;margin-bottom:12px}
label span{display:block;font-size:13px;color:#dbe4ef;margin-bottom:7px}
input,textarea,select{
  width:100%;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  padding:13px 14px;font:inherit;outline:none;
}
textarea{min-height:90px;resize:vertical}
.primary-btn,.secondary-btn{
  width:100%;padding:14px 16px;border:none;border-radius:18px;font-weight:800;font-size:15px;cursor:pointer
}
.primary-btn{background:linear-gradient(135deg,var(--accent),#16a34a);color:#08160c}
.secondary-btn{background:rgba(56,189,248,.14);color:#e8f8ff;border:1px solid rgba(56,189,248,.2)}
.hidden{display:none}
.result-card{padding:16px;margin-top:12px}
.result-card.ok{border-color:rgba(34,197,94,.3)}
.result-card.err{border-color:rgba(239,68,68,.35)}
.stack{display:grid;gap:12px}
.list-card{padding:16px}
.list-card h3{margin:0 0 8px;font-size:17px}
.muted{color:var(--muted);font-size:13px;line-height:1.4}
.badge{display:inline-block;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(56,189,248,.14);margin-top:10px}
@media (max-width:560px){
  .menu-grid{grid-template-columns:1fr}
}