cd /Users/frank/Desktop/matanzapp/webapp && cat > css/app.css <<'CSS'
/* Racha WebApp - minimal UI */
:root{
  --bg:#0b1220;
  --card:rgba(255,255,255,.06);
  --text:#ffffff;
  --muted:rgba(255,255,255,.72);
  --muted2:rgba(255,255,255,.55);
  --line:rgba(255,255,255,.12);
  --primary:#2b6fff;
  --danger:#ff4d4f;
  --success:#2ecc71;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  background:var(--bg);
  color:var(--text);
}

a{color:inherit}
hr.sep{
  border:none;
  border-top:1px solid var(--line);
  margin:18px 0;
}

.app-shell{
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  background:rgba(0,0,0,.08);
  backdrop-filter: blur(6px);
}

.brand{display:flex;flex-direction:column;gap:2px}
.brand-title{font-weight:800;letter-spacing:.2px}
.brand-sub{font-size:12px;color:var(--muted2)}

.top-actions{display:flex;gap:10px;align-items:center}

.main{
  padding:24px 16px 40px;
  display:flex;
  flex-direction:column;
  align-items:center;
}

.card{
  width:min(720px, 100%);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 12px 34px rgba(0,0,0,.35);
  overflow:hidden;
}

.card-head{
  padding:18px 18px 0;
}
.card-head h1{
  margin:0;
  font-size:26px;
}

.card-body{
  padding:14px 18px 18px;
}

.footnote{
  width:min(720px, 100%);
  color:var(--muted2);
  font-size:13px;
  padding:12px 4px 0;
}

.form{display:flex;flex-direction:column;gap:10px}
.label{font-size:13px;color:var(--muted)}
input{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(0,0,0,.18);
  color:var(--text);
  outline:none;
}
input::placeholder{color:rgba(255,255,255,.35)}
input:focus{border-color:rgba(43,111,255,.65); box-shadow:0 0 0 3px rgba(43,111,255,.18)}

.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.stack{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.muted{margin-top:12px;font-size:13px;color:var(--muted2);line-height:1.45}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 14px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:var(--primary);
  color:#fff;
  text-decoration:none;
  font-weight:700;
  cursor:pointer;
}
.btn:hover{filter:brightness(1.06)}
.btn:disabled{opacity:.55;cursor:not-allowed}

.btn-ghost{
  background:transparent;
  color:var(--text);
}

.alert{
  padding:11px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--text);
  margin-bottom:10px;
}
.alert.danger{
  border-color:rgba(255,77,79,.45);
  background:rgba(255,77,79,.10);
}
.alert.success{
  border-color:rgba(46,204,113,.45);
  background:rgba(46,204,113,.10);
}
CSS