:root{
  --bg:#0b0c0f;
  --card:#11131a;
  --border:#242838;
  --text:#f3f4f6;
  --muted:#a7adbd;
  --focus:#ffffff;
  --danger:#ffffff;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: radial-gradient(1200px 700px at 15% 10%, #121627 0%, var(--bg) 55%);
  color:var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  line-height:1.5;
}

a{ color:inherit; }

.container{
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 18px 64px;
}

.header{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  margin-bottom: 16px;
}

.brand{
  display:flex;
  flex-direction:column;
  gap:6px;
}

.kicker{
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

h1{
  font-size: 28px;
  margin: 0;
  letter-spacing: -0.02em;
}

.subhead{
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 70ch;
}

.badge{
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.grid{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 14px;
  margin-top: 18px;
}

@media (max-width: 860px){
  .grid{ grid-template-columns: 1fr; }
  .badge{ display:none; }
}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 12px 35px rgba(0,0,0,0.35);
}

.card h2{
  margin: 0 0 10px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.card h3{
  margin: 18px 0 8px;
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
}

.list{
  margin: 0;
  padding-left: 18px;
  color: var(--text);
}

.list li{ margin: 6px 0; }

.p{
  margin: 8px 0 0;
  color: var(--muted);
}

.divider{
  height: 1px;
  background: var(--border);
  margin: 14px 0;
}

.row{
  display:flex;
  flex-wrap:wrap;
  gap: 10px 16px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(0,0,0,0.22);
}

.mono{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  color: var(--muted);
}

.label{
  display:block;
  margin: 12px 0 8px;
  color: var(--muted);
  font-size: 13px;
}

textarea{
  width:100%;
  min-height: 110px;
  resize: vertical;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.35);
  color: var(--text);
  outline: none;
}

textarea:focus{
  border-color: rgba(255,255,255,0.55);
  box-shadow: 0 0 0 3px rgba(255,255,255,0.08);
}

.check{
  display:flex;
  gap: 10px;
  align-items:flex-start;
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.check input{
  margin-top: 2px;
  width: 16px;
  height: 16px;
  accent-color: #fff;
}

.actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top: 14px;
}

.btn{
  appearance:none;
  border-radius: 12px;
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  cursor:pointer;
  font-weight: 600;
  letter-spacing: .01em;
}

.btn:hover{
  background: rgba(255,255,255,0.10);
}

.btn:disabled{
  opacity:.45;
  cursor:not-allowed;
}

.btn.primary{
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.28);
}

.btn.primary:hover{
  background: rgba(255,255,255,0.16);
}

.btn.danger{
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.32);
}

.note{
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.result{
  margin-top: 10px;
  font-size: 13px;
  color: var(--text);
}

.hidden{ display:none; }
.small{ font-size: 12px; color: var(--muted); }