*,::after,::before{box-sizing:border-box;margin:0;padding:0}:root{--ink:#0a1628;--paper:#f7f8fa;--gold:#f59e0b;--rule:#e2e8f0;--muted:#64748b;--mono:'Barlow',Arial,sans-serif;--head:'Barlow Condensed',sans-serif}body{background:var(--paper);font-family:var(--mono);min-height:100vh;line-height:1.5;overflow-x:hidden}.topbar{background:#1e3c72;color:#fff;font-size:11px;padding:4px 0;text-align:center}.topbar a{color:#fff;text-decoration:none;margin:0 6px}.topbar-sep{color:rgba(255,255,255,.5);margin:0 4px}.topbar-current{color:#fcd34d;font-weight:600;margin:0 6px}.main-header{background:linear-gradient(135deg,#0d2347 0,#1e3c72 55%,#2a5298 100%);padding:13px 15px}.header-content{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}.logo,.tool-card h1{font-family:var(--head)}.logo{text-decoration:none;display:inline-flex;align-items:center;font-size:26px;font-weight:900;color:#fff}.logo img{height:28px;width:28px;margin-right:7px}.logo span{color:#f2a900}.logo-suffix{color:#ffcb4d;margin-left:5px}.tool-wrap{max-width:640px;margin:6px auto;padding:0 16px 2px}.back{color:#475569;text-decoration:none;font-size:.8rem;display:inline-block;margin-bottom:2px}.back:hover,body{color:var(--ink)}.tool-card{background:#fff;border:1px solid var(--rule);border-radius:10px;padding:14px 16px 10px;box-shadow:0 2px 10px rgba(0,0,0,.05);margin-top:6px}.tool-card h1{font-size:1.7rem;margin-bottom:6px}.tool-card .lede{color:var(--muted);margin-bottom:10px;font-size:.95rem}.field{margin-bottom:14px}.field label{display:block;font-size:.7rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:#475569;margin-bottom:5px}.field input,.field select,.field textarea{width:100%;padding:10px 12px;border:1.5px solid var(--rule);border-radius:6px;font-family:inherit;font-size:.95rem;background:#fff}.field input:focus,.field select:focus{border-color:var(--gold);outline:0}.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width:480px){.row{grid-template-columns:1fr}}.btn{background:var(--ink);color:#fff;border:0;padding:10px 22px;border-radius:6px;font-weight:700;cursor:pointer;font-family:inherit}.btn:hover{background:#1e3c72}.result-box{background:linear-gradient(135deg,#fffbeb,#fef3c7);border:1.5px solid var(--gold);border-radius:8px;padding:16px 20px;margin:16px 0;text-align:center}.result-num{font-family:var(--head);font-size:2.2rem;font-weight:900;color:#92400e;line-height:1.1}.result-lbl{font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:#92400e;font-weight:700;margin-top:4px}.affiliate-cta{background:#f0fdf4;border:1.5px solid #16a34a;border-radius:8px;padding:6px 10px;margin-top:6px;display:flex;justify-content:space-between;align-items:center;gap:9px;flex-wrap:nowrap}.affiliate-cta-text{flex:1;min-width:0;font-size:.76rem;line-height:1.25;color:#15803d}.affiliate-cta-btn{background:#15803d;color:#fff;text-decoration:none;padding:5px 11px;border-radius:6px;font-weight:700;font-size:.74rem;white-space:nowrap;flex-shrink:0}.affiliate-cta-btn:hover{background:#166534}.note{font-size:.74rem;color:var(--muted);margin-top:4px;line-height:1.4}.note a{text-decoration:underline}.donate-pill{display:inline-flex;align-items:center;gap:6px;background:#fbbf24;color:#1f2937;padding:5px 12px;border-radius:6px;font-size:12px;font-weight:700;text-decoration:none;font-family:"Barlow",sans-serif;white-space:nowrap;margin-left:auto}.donate-pill:hover{background:#f59e0b}@media (max-width:768px){.donate-pill{font-size:11px;padding:4px 10px}}.partner-block{max-width:640px;margin:8px auto 0;padding:14px 16px;border:1px solid var(--rule);border-radius:10px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.04)}.partner-label{font-family:var(--head);font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}.partner-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.partner-card{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--rule);border-radius:8px;text-decoration:none;color:inherit;background:#fafcff;transition:all .12s}.partner-card:hover,.tool-top-card:hover{border-color:#93c5fd;background:#eff6ff;transform:translateY(-1px)}.partner-icon{font-size:1.3rem;flex-shrink:0;line-height:1}.partner-text{display:flex;flex-direction:column;min-width:0}.partner-name{font-family:var(--head);font-weight:700;font-size:.92rem;color:var(--ink);line-height:1.2;margin-bottom:2px}.partner-sub{font-size:.72rem;color:var(--muted);line-height:1.3}.partner-note{font-size:.7rem;color:var(--muted);text-align:center;margin-top:8px;font-style:italic}@media (max-width:520px){.partner-grid{grid-template-columns:1fr}}.tool-top-banner{max-width:640px;margin:4px auto 0;padding:10px 12px;border:1px solid var(--rule);border-radius:10px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.04);display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px}.tool-top-card{display:flex;align-items:center;gap:9px;padding:8px 10px;border:1px solid var(--rule);border-radius:8px;background:#fafcff;text-decoration:none;color:inherit;transition:all .12s}.tool-top-icon{font-size:1.25rem;flex-shrink:0;line-height:1}.tool-top-img{width:36px;height:48px;object-fit:cover;border-radius:3px;flex-shrink:0;box-shadow:0 1px 4px rgba(0,0,0,.15)}.tool-top-text{display:flex;flex-direction:column;min-width:0}.tool-top-name{font-family:var(--head);font-weight:700;font-size:.85rem;color:var(--ink);line-height:1.2}.tool-top-sub{font-size:.68rem;color:var(--muted);line-height:1.3}@media (max-width:720px){.tool-top-banner{grid-template-columns:1fr;gap:6px}}.tool-side-banner{display:none}@media (min-width:960px){.tool-side-banner,.tool-side-card{display:flex;flex-direction:column;border:1px solid var(--rule)}.tool-side-banner{gap:8px;position:sticky;top:90px;width:180px;height:fit-content;align-self:flex-start;flex-shrink:0;padding:12px 10px;border-radius:10px;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.04)}.tool-side-card{gap:3px;padding:8px;border-radius:6px;background:#fafcff;text-decoration:none;color:inherit;transition:all .12s}.tool-side-card:hover{border-color:#93c5fd;background:#eff6ff;transform:translateY(-1px)}.tool-side-icon{font-size:1.1rem;line-height:1}.tool-side-name{font-family:var(--head);font-weight:700;font-size:.78rem;color:var(--ink);line-height:1.2}.tool-side-sub{font-size:.66rem;color:var(--muted);line-height:1.3}.tool-side-label{font-size:9px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);text-align:center;margin-bottom:4px}.tool-page-row{display:flex;justify-content:center;align-items:flex-start;gap:18px;max-width:1300px;margin:0 auto}.tool-page-row .tool-wrap{flex:1;max-width:640px;margin:6px 0}}

/* === SHARED TOP-PICKS BAR (.tool-top-picks) === */
/* Used by sudoku.html, flashcard.html etc. — small affiliate strip
   above the tool card. Narrow max-width keeps it visually intentional
   instead of sprawling full-page like a banner ad. 3-col at desktop,
   stacks at narrow. */
.tool-top-picks{
  max-width:640px;
  margin:18px auto 6px;
  padding:14px 16px;
  border:1px solid var(--rule);
  border-radius:10px;
  background:#fff;
  box-shadow:0 1px 4px rgba(0,0,0,.04);
  font-family:var(--mono);
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
}
.tool-top-picks-label{
  grid-column:1 / -1;
  font-family:var(--head);
  font-size:11px;
  font-weight:800;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:2px;
}
.tool-top-pick-card{
  display:flex;
  flex-direction:column;
  gap:3px;
  padding:10px 12px;
  border:1px solid var(--rule);
  border-radius:8px;
  background:#fafcff;
  text-decoration:none;
  color:inherit;
  transition:all .12s;
}
.tool-top-pick-card:hover{
  border-color:#93c5fd;
  background:#eff6ff;
  transform:translateY(-1px);
}
.tool-top-pick-icon{
  font-size:1.4rem;
  line-height:1;
  margin-bottom:2px;
}
.tool-top-pick-name{
  font-family:var(--head);
  font-weight:700;
  font-size:.92rem;
  color:var(--ink);
  line-height:1.2;
}
.tool-top-pick-sub{
  font-size:.72rem;
  color:var(--muted);
  line-height:1.3;
}
@media (max-width:520px){
  .tool-top-picks{grid-template-columns:1fr;gap:8px}
  .tool-top-picks-label{margin-bottom:0}
}