:root{
  --bg:#f7f8fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --border:#e2e8f0;
  --primary:#0f172a;
  --primaryText:#ffffff;
  --focus:#94a3b8;
  --radius:14px;
  --max:980px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.45;
}
a{color:inherit}
.container{max-width:var(--max);margin:0 auto;padding:18px}
header{
  position:sticky;top:0;z-index:5;
  background:rgba(247,248,251,.85);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;gap:14px;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand strong{letter-spacing:.2px}
.navlinks{display:flex;gap:14px;flex-wrap:wrap}
.navlinks a{text-decoration:none;color:var(--muted);padding:8px 10px;border-radius:10px}
.navlinks a:hover{background:#eef2ff;color:var(--text)}

main{padding:18px 0 28px}
.hero{padding:18px 0 6px}
.hero h1{margin:0 0 8px;font-size:clamp(26px,4vw,38px)}
.hero p{margin:0;color:var(--muted);max-width:72ch}

.grid{display:grid;gap:12px;grid-template-columns:repeat(1,minmax(0,1fr));margin-top:16px}
@media (min-width:720px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:980px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  display:flex;
  flex-direction:column;
}
.card h2{margin:0 0 6px;font-size:18px}
.card p{margin:0 0 12px;color:var(--muted);font-size:14px}
.card a.btn{display:inline-flex;margin-top:auto}

.section{margin-top:16px}
.section h2{margin:0 0 10px;font-size:18px}
.small{font-size:13px;color:var(--muted)}

.ad-slot{
  background:rgba(15,23,42,.04);
  border:1px dashed var(--border);
  border-radius:12px;
  padding:12px;
  color:var(--muted);
  text-align:center;
  font-size:13px;
  display:none;
}
html[data-ads="1"] .ad-slot{display:block}

.tool-head{padding:18px 0 8px}
.tool-head h1{margin:0 0 6px;font-size:clamp(24px,4vw,34px)}
.tool-head p{margin:0;color:var(--muted);max-width:75ch}

.kv{display:grid;grid-template-columns:1fr;gap:10px}
@media (min-width:720px){.kv{grid-template-columns:1.2fr .8fr}}
.panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:14px}

.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.hr{height:1px;background:var(--border);margin:10px 0}

.btn{
  border:1px solid var(--border);
  background:#fff;
  color:var(--text);
  padding:10px 14px;
  border-radius:12px;
  cursor:pointer;
  text-decoration:none;
  font-weight:600;
  display:inline-flex;
  gap:8px;
  align-items:center;
}
.btn:hover{background:#f8fafc}
.btn.primary{background:var(--primary);color:var(--primaryText);border-color:var(--primary)}
.btn.primary:hover{filter:brightness(1.05)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn:focus-visible{outline:3px solid rgba(148,163,184,.6);outline-offset:2px}

/* Tag next to the brand (pill) */
.pill{font-size:12px;border:1px solid var(--border);padding:6px 10px;border-radius:999px;color:var(--muted);background:#fff}

label{display:block;font-weight:700;font-size:13px;margin:0 0 6px}
input[type=text], input[type=tel], input[type=email], textarea, select{
  width:100%;
  padding:11px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  outline:none;
  background:#fff;
  color:var(--text);
}
textarea{min-height:110px;resize:vertical}
input:focus, textarea:focus, select:focus{border-color:rgba(148,163,184,.8);box-shadow:0 0 0 4px rgba(148,163,184,.18)}

.form-grid{display:grid;grid-template-columns:1fr;gap:12px}
@media (min-width:720px){.form-grid.two{grid-template-columns:1fr 1fr}}

.qr-wrap{display:grid;gap:10px}
.qr-preview{
  background:conic-gradient(from 90deg,#f8fafc 0 25%,#fff 0 50%,#f8fafc 0 75%,#fff 0);
  background-size:18px 18px;
  border:1px solid var(--border);
  border-radius:12px;
  padding:14px;
  display:grid;
  place-items:center;
  min-height:260px;
}
.qr-preview canvas,
.qr-preview img,
.qr-preview table{max-width:100%;height:auto}

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

.footer{border-top:1px solid var(--border);padding:18px 0;margin-top:18px}
.footer .row{justify-content:space-between}

/* Mobile tools sheet */
.tools-menu-btn{display:none}

.tools-sheet{
  position:fixed;
  inset:0;
  z-index:50;
  display:none;
  align-items:end;
}
.tools-sheet:not([hidden]){display:grid}
.tools-sheet__backdrop{position:absolute;inset:0;background:rgba(15,23,42,.26)}
.tools-sheet__panel{
  position:relative;
  background:var(--card);
  border-top:1px solid var(--border);
  border-radius:20px 20px 0 0;
  padding:14px;
  max-height:min(72vh,520px);
  overflow:auto;
}
.tools-sheet__header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:4px 2px 10px}
.tools-sheet__title{font-weight:800;letter-spacing:.2px}
.tools-sheet__list{display:grid;gap:6px}
.tools-sheet__list a{
  text-decoration:none;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:#fff;
  font-weight:700;
}
.tools-sheet__list a[aria-current="page"]{border-color:rgba(15,23,42,.28);background:#f1f5f9}

html[data-tools-open="1"],
html[data-tools-open="1"] body{overflow:hidden}

/* Cookie banner */
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:60;padding:12px}
.cookie-banner__inner{
  max-width:var(--max);
  margin:0 auto;
  background:#0b1220;
  color:#fff;
  border-radius:16px;
  padding:14px;
  display:flex;
  gap:12px;
  align-items:flex-start;
  justify-content:space-between;
  box-shadow:0 14px 40px rgba(2,6,23,.32);
}
.cookie-banner__inner a{color:#fff}
.cookie-banner__text{max-width:70ch}
.cookie-banner__text strong{display:block;margin-bottom:4px}
.cookie-banner__actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.cookie-banner__actions .btn{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.35);
}
.cookie-banner__actions .btn:hover{background:rgba(255,255,255,.10);color:#fff}
.cookie-banner__actions .btn.primary{background:#fff;color:#0b1220;border-color:#fff}
.cookie-banner__actions .btn.primary:hover{filter:brightness(0.97)}

@media (max-width: 767px){
  .container{padding:14px}
  main{padding:10px 0 18px}
  .hero{padding:10px 0 2px}
  .section{margin-top:12px}

  /* Navigation: replace horizontal links with Tools icon button */
  .navlinks{display:none}
  .tools-menu-btn{display:inline-flex}
  .tools-menu-btn{
    width:44px;
    height:44px;
    min-width:44px;
    min-height:44px;
    padding:0;
    border-radius:999px;
    justify-content:center;
    align-items:center;
    background:var(--primary);
    border-color:var(--primary);
    color:var(--primaryText);
    box-shadow:0 6px 18px rgba(15,23,42,.12);
    -webkit-tap-highlight-color:transparent;
    user-select:none;
    touch-action:manipulation;
  }
  .tools-menu-btn::before{
    content:'☰';
    font-size:22px;
    line-height:1;
    font-weight:800;
    transform:translateY(-1px);
  }
  .tools-menu-btn:hover,
  .tools-menu-btn:focus,
  .tools-menu-btn:focus-visible{
    background:var(--primary);
    border-color:var(--primary);
    color:var(--primaryText);
    filter:brightness(1.03);
  }
  .tools-menu-btn:active{
    background:var(--primary);
    border-color:var(--primary);
    color:var(--primaryText);
    filter:brightness(.96);
    transform:translateY(1px);
  }
  .tools-menu-btn:focus-visible{outline:3px solid rgba(148,163,184,.8);outline-offset:3px}

  .cookie-banner{padding:10px}
  .cookie-banner__inner{flex-direction:column;align-items:stretch}
  .cookie-banner__actions{justify-content:flex-start}
}