/* Minimal modern look */
:root { --brand:#0d6efd; }
body { background:#f8fafc; font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji'; }
.navbar { background: var(--brand); }
.navbar-brand, .nav-link { color:#fff !important; font-weight:600; }
.header-hero {
  background: linear-gradient(135deg, #0d6efd 0%, #5b9bff 100%);
  color:#fff; border-radius:20px; padding:40px; margin-bottom:24px;
}
.card.tool { border:1px solid #eef2f7; border-radius:16px; }
pre { white-space: pre-wrap; word-wrap: break-word; }
footer { background: var(--brand); color:white; padding:24px; margin-top:32px; border-top-left-radius:16px; border-top-right-radius:16px; }
.ads { border:2px dashed #e2e8f0; padding:16px; text-align:center; border-radius:12px; background:#fff; }