:root{
  --bg:#0b0f19;
  --card:#111827;
  --muted:#94a3b8;
  --text:#e5e7eb;
  --brand:#60a5fa;
  --brand2:#34d399;
  --border:rgba(148,163,184,.25);
  --shadow:0 8px 24px rgba(0,0,0,.25);
  --radius:14px;
  --tap:44px;
  --max:1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  line-height:1.5;
  color:var(--text);
  background:radial-gradient(1100px 500px at 10% 0%,rgba(96,165,250,.25),transparent 55%),
             radial-gradient(900px 500px at 90% 0%,rgba(52,211,153,.2),transparent 55%),
             var(--bg);
}

a{color:inherit}
a:hover{color:var(--brand)}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:16px}

.skip-link{
  position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-link:focus{
  left:16px;top:16px;width:auto;height:auto;padding:10px 12px;
  background:var(--card);border:1px solid var(--border);border-radius:10px;z-index:10;
}

.site-header{
  position:sticky;top:0;z-index:5;
  background:rgba(11,15,25,.86);
  backdrop-filter:saturate(140%) blur(12px);
  border-bottom:1px solid var(--border);
}
.header-row{display:flex;align-items:center;gap:12px;justify-content:space-between}
.brand{font-weight:800;letter-spacing:.2px;text-decoration:none}
.nav{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.nav a{font-size:14px;text-decoration:none;color:var(--muted);padding:10px 10px;border-radius:12px}
.nav a:hover{color:var(--text);background:rgba(148,163,184,.08)}

.hero{padding:18px 0}
.hero h1{font-size:28px;line-height:1.15;margin:0 0 10px}
.lead{margin:0 0 14px;color:var(--muted)}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}

.btn{
  min-height:var(--tap);
  padding:10px 14px;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(148,163,184,.06);
  color:var(--text);
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-weight:700;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:linear-gradient(135deg,rgba(96,165,250,.95),rgba(52,211,153,.75));
  border-color:transparent;
  box-shadow:var(--shadow);
}
.btn-ghost{background:rgba(148,163,184,.05)}

.tool-grid{display:grid;grid-template-columns:1fr;gap:12px;margin:14px 0 22px}
.card{
  border:1px solid var(--border);
  background:rgba(17,24,39,.75);
  border-radius:var(--radius);
  padding:14px;
}
.card h2{font-size:18px;margin:0 0 6px}
.card p{margin:0;color:var(--muted);font-size:14px}

.page-head{padding:10px 0 14px}
.page-head h1{margin:0 0 8px;font-size:28px;line-height:1.15}

.tool{
  border:1px solid var(--border);
  background:rgba(17,24,39,.75);
  border-radius:var(--radius);
  padding:14px;
  box-shadow:var(--shadow);
}
.mode-tabs{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  overflow:visible;
  padding-bottom:0;
  margin:-2px 0 10px;
}
.tab-btn{
  min-height:var(--tap);
  padding:10px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(148,163,184,.05);
  color:var(--muted);
  font-weight:900;
  white-space:nowrap;
}
.tab-btn[aria-selected="true"]{
  color:var(--text);
  border-color:rgba(96,165,250,.45);
  background:rgba(96,165,250,.12);
}
.tab-btn:active{transform:translateY(1px)}
.label{display:block;font-weight:800;margin:0 0 8px}
.textarea{
  width:100%;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(11,15,25,.65);
  color:var(--text);
  padding:12px 12px;
  resize:vertical;
  min-height:110px;
  font-size:16px;
}
.textarea:focus{outline:2px solid rgba(96,165,250,.55);outline-offset:2px}
.tool-actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 6px}

.results{margin-top:14px}
.section-title{margin:0 0 10px;font-size:18px}
.results-list{display:flex;flex-direction:column;gap:10px}

.result-item{
  border:1px solid var(--border);
  border-radius:14px;
  background:rgba(11,15,25,.55);
  overflow:hidden;
}
.result-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 12px;border-bottom:1px solid var(--border);
}
.style-name{margin:0;font-weight:900;font-size:14px;color:var(--muted)}
.copy-btn{
  min-height:var(--tap);
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(96,165,250,.35);
  background:rgba(96,165,250,.12);
  color:var(--text);
  font-weight:900;
}
.copy-btn:active{transform:translateY(1px)}
.copy-btn[aria-busy="true"]{opacity:.7}

.result-body{padding:12px}
.output{
  font-size:18px;
  word-break:break-word;
  overflow-wrap:anywhere;
}
.output.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}
.hint{margin-top:8px;font-size:12px;color:var(--muted)}

.content{margin:18px 0}
.steps{padding-left:18px;color:var(--muted)}
.bullets{padding-left:18px;color:var(--muted)}
.content a{color:var(--text);text-decoration:underline;text-decoration-color:rgba(96,165,250,.45)}
.content a:hover{text-decoration-color:rgba(52,211,153,.65)}

.faq{margin:18px 0}
.faq-item{
  border:1px solid var(--border);
  border-radius:14px;
  padding:10px 12px;
  background:rgba(17,24,39,.55);
  margin-bottom:10px;
}
.faq-item summary{cursor:pointer;font-weight:900}
.faq-item p{color:var(--muted);margin:10px 0 0}

.site-footer{
  border-top:1px solid var(--border);
  margin-top:26px;
  background:rgba(11,15,25,.6);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:16px;padding:18px 0}
.footer-title{margin:0 0 10px;font-size:16px}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.footer-links a{text-decoration:none;color:var(--muted)}
.footer-links a:hover{color:var(--text)}
.footer-meta{margin:0 0 18px;color:var(--muted);font-size:13px}

@media (min-width:720px){
  .container{padding:20px}
  .hero h1,.page-head h1{font-size:36px}
  .tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .nav a{font-size:15px}
}