:root{
  --rcs-primary:#0f766e;
  --rcs-bg:#f8fafc;
  --rcs-card:#ffffff;
  --rcs-border:#e2e8f0;
  --rcs-text:#0f172a;
}
.rcs-wrap{background:var(--rcs-bg); border:1px solid var(--rcs-border); border-radius:14px; padding:20px; box-shadow:0 1px 0 rgba(0,0,0,.03)}
.rcs-row{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.rcs-row.full{grid-template-columns:1fr}
.rcs-field label{display:block; font-weight:600; color:var(--rcs-text); margin-bottom:6px}
.rcs-input, .rcs-select, .rcs-textarea{width:100%; border:1px solid var(--rcs-border); border-radius:10px; padding:10px 12px; background:var(--rcs-card)}
.rcs-button{display:inline-flex; align-items:center; gap:8px; padding:10px 14px; border-radius:10px; border:1px solid var(--rcs-primary); background:var(--rcs-primary); color:#fff; cursor:pointer}
.rcs-button[disabled]{opacity:.6; cursor:not-allowed}
.rcs-result{margin-top:16px; background:#0b1220; color:#e2e8f0; padding:16px; border-radius:12px; white-space:pre-wrap}
.rcs-hashtags{margin-top:8px; display:flex; flex-wrap:wrap; gap:8px}
.rcs-tag{background:#e2e8f0; color:#0f172a; padding:6px 10px; border-radius:999px; display:inline-block}
/* Optional utility classes for custom design */
.rcs-soft{box-shadow:0 10px 30px rgba(2,6,23,.08)}
.rcs-glass{backdrop-filter: blur(6px); background:rgba(255,255,255,.65)}