:root{--bg:#f8fafc;--card:#ffffff;--text:#0f172a;--muted:#64748b;--accent:#0ea5e9;--border:#e2e8f0}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Arial,"Apple Color Emoji","Segoe UI Emoji";background:var(--bg);color:var(--text)}
.container{max-width:1120px;margin:0 auto;padding:16px}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.8);backdrop-filter:saturate(160%) blur(6px);border-bottom:1px solid var(--border)}
.header .bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px}
.brand{display:flex;gap:12px;align-items:center}.logo{width:36px;height:36px;border-radius:12px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:700}
.brand .sub{font-size:12px;color:var(--muted)}
.lang{display:flex;gap:8px;align-items:center}.lang select{padding:6px 8px;border:1px solid var(--border);border-radius:10px;background:var(--card)}
main{padding:24px 0}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;box-shadow:0 1px 2px rgba(0,0,0,.04)}.card h2{margin:0 0 10px;font-size:18px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.input,.select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff}
.btn{padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff;cursor:pointer}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.result{background:#f1f5f9;border:1px solid var(--border);padding:12px;border-radius:12px;font-weight:600}
.hero{background:linear-gradient(#fff,var(--bg));border-bottom:1px solid var(--border);padding:28px 0}.hero h1{margin:0 0 8px}
footer{border-top:1px solid var(--border);background:#fff}.footer-in{display:flex;align-items:center;justify-content:space-between;padding:18px 16px;color:var(--muted);font-size:14px}
.ad-slot{min-height:90px;border:1px dashed var(--border);border-radius:12px;background:#fff;display:grid;place-items:center;color:var(--muted);font-size:12px}
small.muted{color:var(--muted);font-size:12px}table{width:100%;border-collapse:collapse}td,th{border:1px solid var(--border);padding:8px}kbd{background:#0f172a;color:#fff;padding:2px 6px;border-radius:6px;font-size:12px}


/* Header pills & tag links */
.header nav{display:flex;gap:.5rem;overflow-x:auto;padding:.5rem 16px;white-space:nowrap;scrollbar-width:none;-ms-overflow-style:none}
.header nav::-webkit-scrollbar{display:none}
.header nav a{display:inline-flex;align-items:center;padding:.45rem .8rem;border-radius:999px;border:1px solid var(--border);background:#fff;
  text-decoration:none;color:var(--text);font-weight:600;box-shadow:0 1px 0 rgba(17,25,40,.06);transition:background .15s,border-color .15s}
.header nav a:hover{background:#f6f8fc;border-color:#d5dbe6}

/* FAQ grid */
.faq-title{margin:24px 0 8px;font-size:22px}
.faq-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;margin-bottom:12px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px}
.faq-item h3{margin:0 0 6px;font-size:16px}
.related-title{margin:8px 0;font-size:18px}
.related-links{display:flex;flex-wrap:wrap;gap:8px}
.related-links a{padding:.4rem .7rem;border:1px solid var(--border);border-radius:999px;background:#fff;text-decoration:none;color:var(--text)}


/* === Calcora: Header 2-button mega menus === */
.menubar{display:flex;gap:.5rem;padding:.5rem 16px;flex-wrap:wrap}
.menu{position:relative}
.menu-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;
  border:1px solid var(--border);border-radius:999px;background:#fff;font-weight:600;cursor:pointer}
.menu-panel{position:absolute;inset-inline-start:0;top:calc(100% + 8px);
  min-width:280px;max-width:min(92vw,720px);max-height:60vh;overflow:auto;display:none;
  background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:0 12px 30px rgba(17,25,40,.12);padding:10px;z-index:50}
.menu.open .menu-panel{display:block}
.menu-panel .section-title{margin:6px 8px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.menu-panel a{display:flex;justify-content:space-between;gap:12px;
  padding:.55rem .7rem;border-radius:10px;text-decoration:none;color:var(--text)}
.menu-panel a:hover{background:#f6f8fc}
.related-title{font-size:1.25rem;margin:10px 0}
.related-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.related-links a{display:block;padding:.65rem .8rem;border:1px solid var(--border);border-radius:12px;text-decoration:none;color:var(--text)}
.related-links a:hover{background:#f6f8fc}