:root{
  --bg:#f6fbfd;
  --ink:#073746;
  --muted:#667985;
  --card:#123f53;
  --card2:#39799b;
  --yellow:#ffc928;
  --field:rgba(0,0,0,.26);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);font-family:Arial,Helvetica,sans-serif;color:#14222b}
.shell{min-height:100vh;display:grid;grid-template-columns:minmax(280px,34%) 1fr}
.intro{display:flex;align-items:center;justify-content:center;padding:48px}
.intro-inner{max-width:420px;text-align:center}
.intro h1{font-size:40px;line-height:1.12;color:var(--ink);margin:0 0 18px;font-weight:800}
.intro p{color:#757575;line-height:1.7;margin:0 0 32px}
.intro .brand{font-size:30px;font-weight:900;color:var(--ink);margin-top:28px}
.workspace{padding:28px;display:flex;align-items:flex-start;justify-content:center}
.generator{
  width:min(980px,100%);
  border-radius:24px;
  padding:26px;
  background:
    linear-gradient(rgba(3,31,47,.94),rgba(3,31,47,.88)),
    radial-gradient(circle at top right,#347da0 0,transparent 42%);
  box-shadow:0 18px 55px rgba(0,0,0,.18);
}
.logo-title{text-align:center;color:white;margin-bottom:22px}
.logo-title h2{margin:0;font-size:30px}
.logo-title p{margin:8px 0 0;color:#cfe7f1}
.panel{padding:24px;border-radius:24px;background:rgba(58,124,158,.72);margin-bottom:16px}
.row{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.col-12{grid-column:span 12}.col-8{grid-column:span 8}.col-7{grid-column:span 7}
.col-6{grid-column:span 6}.col-5{grid-column:span 5}.col-4{grid-column:span 4}
.col-3{grid-column:span 3}
label{display:block;color:#fff;font-size:12px;margin:0 0 7px}
small.hint{display:block;color:#d6edf7;margin-top:6px;line-height:1.45}
input,select{
  width:100%;height:42px;border:0;border-radius:8px;padding:0 12px;
  color:#fff;background:var(--field);outline:1px solid transparent;
}
input:focus,select:focus{outline-color:#ffe07a}
select option{color:#111}
input[type=color]{padding:4px}
hr{border:0;border-top:4px dotted #ffcc00;opacity:.75;margin:24px 0}
.actions{display:grid;grid-template-columns:1fr 160px;gap:10px}
button{border:0;border-radius:10px;padding:14px 18px;font-weight:800;cursor:pointer}
.generate{background:var(--yellow);color:#2a2100;font-size:16px}
.reset{background:#17232b;color:#fff}
.secondary{background:#eaf6fb;color:#0b445a}
.status{
  border-radius:12px;padding:12px 14px;background:rgba(0,0,0,.2);
  color:#e8f7fd;min-height:45px;line-height:1.55;margin-top:14px;white-space:pre-wrap
}
.preview{background:#071b26;border-radius:15px;padding:16px;color:#d6edf7;margin-top:15px;font-size:13px;line-height:1.65}
.preview b{color:#fff}
.preview .wait{color:#9eb8c5}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.hidden{display:none}
@media(max-width:920px){
  .shell{grid-template-columns:1fr}.intro{padding:30px 20px 8px}.intro h1{font-size:29px}
  .workspace{padding:18px}.row{grid-template-columns:1fr}.row>[class^="col-"]{grid-column:span 1}
  .actions{grid-template-columns:1fr}
}