:root{
  --bg:#f6f8ff;
  --panel:#ffffff;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#4b5563;
  --line:#e5e7eb;
  --accent:#6d28d9;
  --accent2:#06b6d4;
  --good:#16a34a;
  --shadow: 0 10px 30px rgba(2,6,23,.10);
  --radius: 18px;
  --radius2: 14px;
  --max: 1080px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html,body{
  margin:0;padding:0;
  background:
    radial-gradient(900px 500px at 20% 0%, rgba(109,40,217,.12), transparent 60%),
    radial-gradient(900px 500px at 80% 20%, rgba(6,182,212,.10), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:var(--font);
}

a{color:var(--text); text-decoration:none; opacity:.85}
a:hover{opacity:1}

.container{max-width:var(--max); margin:0 auto; padding: 18px 16px}

.topbar{
  position:sticky; top:0; z-index:50;
  background: rgba(246,248,255,.82);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(229,231,235,.9);
}
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between; gap:16px
}

.brand{display:flex; gap:12px; align-items:center}
.logo{
  width:44px; height:44px; border-radius:14px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, rgba(109,40,217,.18), rgba(6,182,212,.14));
  border:1px solid rgba(109,40,217,.18);
  box-shadow: var(--shadow);
}
.title{margin:0; font-size:18px; letter-spacing:.2px}
.subtitle{margin:2px 0 0; font-size:13px; color:var(--muted)}
.nav{display:flex; gap:14px; align-items:center}

.hero{
  display:grid;
  grid-template-columns: 1.05fr 1.25fr;
  gap: 18px;
  padding-top: 18px;
}
.hero h2{font-size:32px; line-height:1.1; margin: 8px 0 8px}
.lead{color:var(--muted); margin:0 0 14px; font-size:15px}
.trust{
  display:inline-block; margin-top:10px; padding:8px 10px;
  border:1px solid rgba(229,231,235,1);
  background: rgba(255,255,255,.85);
  border-radius: 999px;
  color: #111827;
  font-size: 12.5px;
}

.examples{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
.example-btn{
  cursor:pointer;
  border:1px solid rgba(229,231,235,1);
  background: rgba(255,255,255,.85);
  color: var(--text);
  padding:10px 12px;
  border-radius: 999px;
  font-size: 13px;
}
.example-btn:hover{border-color: rgba(109,40,217,.35); background: rgba(255,255,255,1)}

.card{
  background: rgba(255,255,255,.92);
  border:1px solid rgba(229,231,235,1);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}

.controls{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  padding: 6px 4px 12px;
  border-bottom:1px solid rgba(229,231,235,1);
  margin-bottom: 12px;
}
.control label{display:block; font-size:12px; color:var(--muted); margin-bottom:6px}
select, textarea, input[type="range"]{width:100%; font-family:var(--font)}
select{
  padding:10px 10px;
  border-radius: 12px;
  border:1px solid rgba(229,231,235,1);
  background: rgba(248,250,252,1);
  color: var(--text);
}
textarea{
  padding:12px 12px;
  border-radius: 14px;
  border:1px solid rgba(229,231,235,1);
  background: rgba(248,250,252,1);
  color: var(--text);
  resize: vertical;
  min-height: 150px;
}
textarea:focus, select:focus{
  outline:none;
  border-color: rgba(109,40,217,.55);
  box-shadow: 0 0 0 3px rgba(109,40,217,.12);
}
.density-labels{display:flex; justify-content:space-between; color:var(--muted); font-size:11px; margin-top:6px}

.text-areas{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.area label{display:block; font-size:12px; color:var(--muted); margin-bottom:6px}
.area-actions{display:flex; gap:10px; margin-top:10px}
.output-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:6px}
.meta{font-size:12px; color:var(--muted)}
.actions{display:flex; gap:10px; margin-top:10px}

.btn{
  cursor:pointer;
  padding:10px 12px;
  border-radius: 14px;
  border:1px solid rgba(229,231,235,1);
  background: rgba(255,255,255,1);
  color: var(--text);
  font-weight: 700;
}
.btn:hover{border-color: rgba(109,40,217,.35); background: rgba(248,250,252,1)}
.btn.primary{
  background: linear-gradient(135deg, rgba(109,40,217,.92), rgba(6,182,212,.75));
  border-color: rgba(109,40,217,.35);
  color: white;
}
.btn.ghost{opacity:.95}

.toast{
  display:none;
  margin: 10px 0 0;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(22,163,74,.10);
  border: 1px solid rgba(22,163,74,.22);
  color: #065f46;
  font-weight: 700;
  font-size: 13px;
}

.fineprint{margin: 12px 4px 2px; color: var(--muted); font-size: 12.5px}

.section{padding: 28px 0 6px}
.section h3{margin:0 0 14px; font-size: 20px}
.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.mini-card{
  background: rgba(255,255,255,.92);
  border:1px solid rgba(229,231,235,1);
  border-radius: var(--radius2);
  padding: 14px;
  box-shadow: 0 8px 22px rgba(2,6,23,.06);
}
.mini-card h4{margin:0 0 6px; font-size:15px}
.mini-card p{margin:0; color: var(--muted); font-size: 13px; line-height: 1.5}

.faq details{
  background: rgba(255,255,255,.92);
  border:1px solid rgba(229,231,235,1);
  border-radius: var(--radius2);
  padding: 12px 14px;
  margin-bottom:10px;
  box-shadow: 0 8px 22px rgba(2,6,23,.06);
}
.faq summary{cursor:pointer; font-weight: 800}
.faq p{color: var(--muted); margin: 8px 0 0; line-height: 1.6}

.footer{
  margin-top: 22px;
  padding: 18px 0 30px;
  border-top: 1px solid rgba(229,231,235,1);
}
.footer-grid{
  display:flex; justify-content:space-between; gap:12px; align-items:flex-start;
}
.footer-links{display:flex; gap:14px; flex-wrap:wrap}
.muted{color: var(--muted)}
.tiny{font-size: 12px; margin: 10px 0 0}

/* ---------------------------
   Ad Slots (AdSense-friendly)
   --------------------------- */
.ad-slot{
  margin: 14px 0;
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(229,231,235,1);
  border-radius: var(--radius2);
  box-shadow: 0 8px 22px rgba(2,6,23,.06);
  overflow:hidden;
}
.ad-label{
  font-size: 11px;
  color: var(--muted);
  padding: 8px 12px;
  border-bottom: 1px solid rgba(229,231,235,1);
  background: rgba(248,250,252,1);
}
.ad-box{
  display:grid;
  place-items:center;
  padding: 18px 12px;
  color: rgba(75,85,99,.9);
  font-weight: 700;
}

/* Suggested heights (placeholders). Real AdSense will size itself if responsive. */
.ad-header .ad-box{min-height: 90px;}
.ad-in-tool .ad-box{min-height: 90px;}
.ad-mid .ad-box{min-height: 90px;}
.ad-footer .ad-box{min-height: 90px;}
.ad-side{margin-top: 16px;}
.ad-side .ad-box{min-height: 250px;}

.modal{display:none}
.modal[aria-hidden="false"]{display:block}
.modal-backdrop{
  position:fixed; inset:0;
  background: rgba(2,6,23,.45);
  backdrop-filter: blur(6px);
  z-index: 90;
}
.modal-card{
  position:fixed;
  left:50%; top:50%;
  transform: translate(-50%,-50%);
  width:min(720px, calc(100% - 24px));
  background: rgba(255,255,255,.98);
  border:1px solid rgba(229,231,235,1);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 100;
}
.modal-head{
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 14px 10px;
  border-bottom: 1px solid rgba(229,231,235,1);
}
.modal-body{padding: 14px; color: var(--muted); line-height: 1.6}
.icon-btn{
  cursor:pointer;
  width:40px; height:40px;
  border-radius: 12px;
  border:1px solid rgba(229,231,235,1);
  background: rgba(248,250,252,1);
  color: var(--text);
}

/* Responsive */
@media (max-width: 920px){
  .hero{grid-template-columns: 1fr}
  .controls{grid-template-columns: 1fr}
  .text-areas{grid-template-columns: 1fr}
  .grid{grid-template-columns: 1fr}
  .topbar-inner{flex-direction:column; align-items:flex-start}
  .ad-side{display:none;} /* protect mobile UX */
}