:root{
  /* Palet 60-30-10 */
  --prim-60:#B2A6BE;  /* latar/panel utama */
  --sec-30:#9997BC;   /* elemen sekunder: border/heading */
  --acc-10:#555184;   /* aksen tombol/ikon penting */

  --bg:#f7f6f9;
  --card:#ffffff;
  --ink:#2f2a38;
  --muted:#6c6a7c;

  --ring:rgba(153,151,188,.35);
  --radius:16px;
  --shadow:0 10px 28px rgba(85,81,132,.12);
  --ok:#e9f6ef;
  --ok-border:#bfe7d0;
  --bad:#fff0f0;
  --bad-border:#ffcfcf;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color:var(--ink);
  background:
    radial-gradient(900px 600px at -10% -10%, #eeeaf5, transparent 60%),
    radial-gradient(900px 600px at 110% 0%, #eceaf7, transparent 55%),
    var(--bg);
}

/* Layout */
.container{
  max-width:1000px;
  margin:0 auto;
  padding:28px 16px 40px;
  display:grid;
  gap:18px;
}
.header h1{margin:0 0 6px 0; font-size:1.9rem; color:var(--acc-10)}
.subtitle{margin:0; color:var(--muted)}

.panel{
  background:var(--card);
  border:1px solid var(--sec-30);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px;
  display:grid;
  gap:16px;
}

/* Bar atas: input 70% + side 30% (2x 15%) */
.top-row{
  display:grid;
  grid-template-columns: 7fr 3fr; /* 70% : 30% */
  gap:14px;
}
.input{
  width:100%;
  min-height:160px;
  resize:vertical;
  border:2px solid var(--prim-60);
  border-radius:12px;
  background:#faf9fc;
  padding:12px 14px;
  font-size:1rem;
  line-height:1.5;
  color:var(--ink);
}
.input:focus{outline:none; box-shadow:0 0 0 4px var(--ring)}
.side{
  display:grid;
  grid-template-rows: 1fr 1fr;
  gap:12px;
}
.field{display:grid; gap:6px}
.label{font-size:.92rem; color:var(--muted)}
.select{
  height:42px;
  border:2px solid var(--prim-60);
  border-radius:12px;
  background:#fff;
  color:var(--ink);
  padding:0 10px;
  font-size:1rem;
}
.select:focus{outline:none; box-shadow:0 0 0 4px var(--ring)}


/* Actions */
.actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  height:42px; padding:0 14px;
  border-radius:12px; border:1px solid transparent;
  cursor:pointer; font-weight:600;
  transition:transform .06s ease, filter .2s ease, background .2s ease;
}
.btn span{white-space:nowrap}
.btn:focus{outline:2px solid var(--ring); outline-offset:2px}
.btn:active{transform:translateY(1px)}

.btn.primary{ background:var(--acc-10); color:#fff }
.btn.primary:hover{ filter:brightness(.95) }

.btn.ghost{ background:#fff; color:var(--ink); border-color:var(--prim-60) }
.btn.ghost:hover{ filter:brightness(.97) }

.btn.accent{ background:var(--sec-30); color:#fff }
.btn.accent:hover{ filter:brightness(.97) }

.btn.icon{
  width:42px; padding:0; display:inline-grid; place-items:center;
  background:#fff; color:var(--acc-10); border:1px solid var(--sec-30);
}

/* Result */
.result-wrap{display:grid; gap:8px}
.result-head{
  display:flex; align-items:center; justify-content:space-between;
}
.result-title{margin:0; font-size:1.1rem; color:var(--acc-10)}
.result{
  min-height:120px;
  border:2px dashed var(--prim-60);
  border-radius:12px;
  background:#fcfbff;
  padding:12px 14px;
  overflow:auto;
  white-space:pre-wrap;
  word-break:break-word;
}
.helper{margin:0; color:var(--muted); font-size:.92rem}

/* Aksesibilitas */
.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); border:0;
}

/* Responsif */
@media (max-width:860px){
  .top-row{ grid-template-columns: 1fr; }
  .side{ grid-template-columns: 1fr 1fr; grid-template-rows:auto; }
}
@media (max-width:520px){
  .side{ grid-template-columns: 1fr; }
}