/* ════════════════════════════════════════════════════════════════
   Toolbox design system — token-driven (primitive → semantic),
   light/dark (auto), mobile-first. No framework.
   ════════════════════════════════════════════════════════════════ */
:root {
  /* primitive */
  --gray-50:#f8fafc; --gray-100:#f1f5f9; --gray-200:#e2e8f0; --gray-300:#cbd5e1;
  --gray-400:#94a3b8; --gray-500:#64748b; --gray-600:#475569; --gray-700:#334155;
  --gray-800:#1e293b; --gray-900:#0f172a; --gray-950:#070b14;
  --indigo-500:#6366f1; --indigo-600:#4f46e5; --violet-500:#8b5cf6; --violet-600:#7c3aed;

  /* semantic — light */
  --bg:#f6f7fb;
  --bg-soft:#eef1f8;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --fg:#0f172a;
  --fg-muted:#5b6678;
  --border:#e6e9f0;
  --primary:#4f46e5;
  --primary-2:#8b5cf6;       /* gradient partner */
  --primary-fg:#ffffff;
  --ring:rgba(99,102,241,.35);
  --ok:#16a34a; --warn:#d97706; --danger:#dc2626;
  --glass:rgba(255,255,255,.72);
  --glow: radial-gradient(60rem 30rem at 50% -10rem, rgba(124,58,237,.16), transparent 60%);

  /* scale */
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:22px; --r-full:9999px;
  --sh-sm:0 1px 2px rgba(15,23,42,.06);
  --sh-md:0 6px 20px rgba(15,23,42,.08);
  --sh-lg:0 18px 50px rgba(15,23,42,.14);
  --dur:.18s;
  --maxw:1100px; --header-h:64px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-display:var(--font);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg:#0a0e1a; --bg-soft:#0f1424; --surface:#121829; --surface-2:#0e1322;
    --fg:#eaeef7; --fg-muted:#97a2b6; --border:#222a3d;
    --primary:#6366f1; --primary-2:#a78bfa; --ring:rgba(139,92,246,.4);
    --glass:rgba(18,24,41,.66);
    --glow: radial-gradient(60rem 30rem at 50% -10rem, rgba(124,58,237,.28), transparent 60%);
    --sh-sm:0 1px 2px rgba(0,0,0,.4);
    --sh-md:0 6px 20px rgba(0,0,0,.45);
    --sh-lg:0 18px 50px rgba(0,0,0,.55);
  }
}

* { box-sizing:border-box; }
html,body { margin:0; padding:0; }
body {
  background:var(--bg);
  background-image:var(--glow);
  background-repeat:no-repeat;
  color:var(--fg);
  font-family:var(--font);
  font-size:16px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a { color:var(--primary); text-decoration:none; }
a:hover { text-decoration:underline; }
h1,h2,h3 { font-family:var(--font-display); letter-spacing:-.02em; line-height:1.15; }
:focus-visible { outline:none; box-shadow:0 0 0 4px var(--ring); border-radius:var(--r-sm); }

/* ── Header (glass) ─────────────────────────────────────────── */
.site-header {
  position:sticky; top:0; z-index:30;
  background:var(--glass);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--border);
}
.site-header .bar, .site-footer .bar, .page {
  max-width:var(--maxw); margin:0 auto; padding-left:20px; padding-right:20px;
}
.site-header .bar { height:var(--header-h); display:flex; align-items:center; justify-content:space-between; }
.brand { font-family:var(--font-display); font-weight:800; font-size:1.18rem; color:var(--fg); display:flex; align-items:center; gap:9px; }
.brand .logo {
  width:30px; height:30px; border-radius:9px; display:grid; place-items:center; font-size:1rem;
  background:linear-gradient(135deg,var(--primary),var(--primary-2)); box-shadow:var(--sh-sm);
}
.brand b { background:linear-gradient(135deg,var(--primary),var(--primary-2)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.nav a { color:var(--fg-muted); font-weight:600; font-size:.92rem; margin-left:20px; }
.nav a:hover { color:var(--fg); text-decoration:none; }

/* ── Hero ───────────────────────────────────────────────────── */
.hero { text-align:center; padding:72px 20px 40px; max-width:760px; margin:0 auto; }
.hero .eyebrow {
  display:inline-block; font-weight:700; font-size:.78rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--primary); background:color-mix(in srgb,var(--primary) 12%, transparent);
  padding:5px 12px; border-radius:var(--r-full); margin-bottom:18px;
}
.hero h1 { font-size:clamp(2.1rem,6vw,3.4rem); margin:0 0 14px; font-weight:800; }
.hero h1 .grad { background:linear-gradient(115deg,var(--primary),var(--primary-2)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero p { font-size:1.12rem; color:var(--fg-muted); margin:0 auto 26px; max-width:560px; }
.search { position:relative; max-width:460px; margin:0 auto; }
.search input {
  width:100%; padding:14px 16px 14px 44px; font-size:1rem; border-radius:var(--r-full);
  border:1px solid var(--border); background:var(--surface); color:var(--fg); box-shadow:var(--sh-md);
}
.search::before { content:"🔍"; position:absolute; left:16px; top:50%; transform:translateY(-50%); opacity:.55; }
.trust-row { display:flex; flex-wrap:wrap; gap:10px 22px; justify-content:center; margin-top:22px; color:var(--fg-muted); font-size:.9rem; font-weight:500; }
.trust-row span { display:inline-flex; align-items:center; gap:7px; }

/* ── Page + tool layout ─────────────────────────────────────── */
.page { padding-top:28px; padding-bottom:40px; }
.tool-layout { display:grid; grid-template-columns:minmax(0,1fr) 300px; gap:28px; align-items:start; }
@media (max-width:920px){ .tool-layout { grid-template-columns:1fr; } }
.back-link { display:inline-flex; align-items:center; gap:6px; color:var(--fg-muted); font-weight:600; font-size:.9rem; margin-bottom:14px; }

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-xl);
  box-shadow:var(--sh-md); padding:26px;
}
.card + .card { margin-top:20px; }
h1 { font-size:1.7rem; margin:0 0 6px; }
.lede { color:var(--fg-muted); margin:0 0 22px; font-size:1.02rem; }
h2 { font-size:1.12rem; margin:26px 0 10px; }
label { display:block; font-weight:600; font-size:.9rem; margin:16px 0 7px; color:var(--fg); }

input[type=text],input[type=number],input[type=password],select,textarea {
  width:100%; padding:11px 13px; border:1px solid var(--border); border-radius:var(--r-md);
  font:inherit; background:var(--surface-2); color:var(--fg); transition:border var(--dur),box-shadow var(--dur);
}
input:focus,select:focus,textarea:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 4px var(--ring); background:var(--surface); }
input[type=range]{ width:100%; accent-color:var(--primary); }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px; cursor:pointer;
  border:1px solid transparent; border-radius:var(--r-md); padding:11px 18px; min-height:44px;
  font:inherit; font-weight:700; color:var(--primary-fg);
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:var(--sh-sm); transition:transform var(--dur),box-shadow var(--dur),opacity var(--dur);
}
.btn:hover { transform:translateY(-1px); box-shadow:var(--sh-md); text-decoration:none; }
.btn:active { transform:translateY(0); }
.btn:disabled { opacity:.45; cursor:not-allowed; transform:none; box-shadow:none; }
.btn.secondary { background:var(--surface-2); color:var(--fg); border-color:var(--border); box-shadow:none; }
.btn.secondary:hover { background:var(--bg-soft); }
.btn-row { display:flex; flex-wrap:wrap; gap:10px; margin-top:16px; }

.checks { display:flex; flex-wrap:wrap; gap:12px 18px; margin-top:10px; align-items:center; }
.checks label { display:inline-flex; align-items:center; gap:8px; font-weight:500; margin:0; cursor:pointer; }
.checks input { width:auto; accent-color:var(--primary); }

/* ── Dropzone ───────────────────────────────────────────────── */
.dropzone {
  border:2px dashed var(--border); border-radius:var(--r-lg); padding:40px 20px; text-align:center;
  color:var(--fg-muted); cursor:pointer; background:var(--surface-2);
  transition:border var(--dur),background var(--dur),transform var(--dur);
}
.dropzone:hover { border-color:var(--primary); }
.dropzone.drag { border-color:var(--primary); background:color-mix(in srgb,var(--primary) 8%, var(--surface)); transform:scale(1.005); }
.dropzone p { margin:4px 0; }

/* ── Results ────────────────────────────────────────────────── */
.result-list { list-style:none; padding:0; margin:18px 0 0; display:grid; gap:12px; }
.result-item {
  display:flex; align-items:center; gap:14px; border:1px solid var(--border);
  border-radius:var(--r-md); padding:12px; background:var(--surface-2); animation:rise .25s ease both;
}
.result-item img { width:54px; height:54px; object-fit:cover; border-radius:var(--r-sm); border:1px solid var(--border); background:var(--bg-soft); }
.result-item .meta { flex:1; min-width:0; }
.result-item .meta b { display:block; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.result-item .meta small { color:var(--fg-muted); }

.muted { color:var(--fg-muted); }
.err { color:var(--danger); font-size:.85rem; margin-top:6px; min-height:1em; }
.pill { display:inline-flex; align-items:center; gap:6px; font-size:.74rem; font-weight:700; padding:4px 10px; border-radius:var(--r-full); background:color-mix(in srgb,var(--ok) 14%, transparent); color:var(--ok); }
.mono { font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; }

/* strength meter */
.meter { height:8px; border-radius:var(--r-full); background:var(--bg-soft); overflow:hidden; margin-top:10px; }
.meter > span { display:block; height:100%; width:0; border-radius:var(--r-full); transition:width .25s,background .25s; }

/* ── Tool grid (bento) ──────────────────────────────────────── */
.section-title { font-size:1.1rem; font-weight:700; margin:6px 4px 14px; color:var(--fg-muted); text-transform:uppercase; letter-spacing:.06em; font-size:.82rem; }
.tool-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:16px; }
.tool-tile {
  position:relative; display:block; background:var(--surface); border:1px solid var(--border);
  border-radius:var(--r-lg); padding:20px; box-shadow:var(--sh-sm); overflow:hidden;
  transition:transform var(--dur),box-shadow var(--dur),border-color var(--dur);
}
.tool-tile:hover { transform:translateY(-3px); box-shadow:var(--sh-lg); border-color:color-mix(in srgb,var(--primary) 50%, var(--border)); text-decoration:none; }
.tool-tile .ico {
  width:46px; height:46px; border-radius:12px; display:grid; place-items:center; font-size:1.4rem; margin-bottom:12px;
  background:color-mix(in srgb,var(--primary) 12%, transparent);
}
.tool-tile h3 { margin:0 0 4px; font-size:1.05rem; color:var(--fg); }
.tool-tile p { margin:0; color:var(--fg-muted); font-size:.88rem; }
.tool-tile .arrow { position:absolute; right:18px; top:20px; color:var(--primary); opacity:0; transform:translateX(-4px); transition:.18s; }
.tool-tile:hover .arrow { opacity:1; transform:translateX(0); }
.tool-tile.soon { opacity:.55; pointer-events:none; }
.tool-tile .badge-soon { position:absolute; right:14px; top:14px; font-size:.66rem; font-weight:700; color:var(--fg-muted); background:var(--bg-soft); padding:3px 8px; border-radius:var(--r-full); }

/* ── Ad slot ────────────────────────────────────────────────── */
.ad-rail { position:sticky; top:calc(var(--header-h) + 18px); }
.ad-slot {
  border:1px dashed var(--border); border-radius:var(--r-lg); background:var(--surface-2);
  min-height:250px; display:grid; place-items:center; color:var(--fg-muted); opacity:.6;
  font-size:.72rem; letter-spacing:.14em; text-transform:uppercase;
}
@media (max-width:920px){ .ad-rail { display:none; } }

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer { border-top:1px solid var(--border); margin-top:56px; color:var(--fg-muted); font-size:.86rem; }
.site-footer .bar { padding-top:22px; padding-bottom:22px; display:flex; flex-wrap:wrap; gap:8px 16px; align-items:center; justify-content:space-between; }
.site-footer a { color:var(--fg-muted); }
.cookie-settings { display:none; cursor:pointer; } /* revealed by consent.js only when the CMP is active */

/* ── Motion ─────────────────────────────────────────────────── */
@keyframes rise { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }
.card { animation:rise .3s ease both; }
@media (prefers-reduced-motion: reduce) { * { animation:none !important; transition:none !important; } }

/* ── QR maker fields ────────────────────────────────────────── */
.qr-field-wrapper { margin-top:12px; }
.qr-checkbox-label { display:inline-flex; align-items:center; gap:8px; font-weight:500; cursor:pointer; }
.qr-field-error { color:var(--danger); font-size:.82rem; margin-top:4px; }
.qr-input-error { border-color:var(--danger) !important; }
#qr-preview { display:grid; place-items:center; padding:18px; background:#fff; border:1px solid var(--border); border-radius:var(--r-lg); min-height:120px; margin-top:8px; }
#qr-preview canvas, #qr-preview img { border-radius:8px; }

/* ── Output grids (case converter etc.) ─────────────────────── */
.out-grid { display:grid; gap:10px; margin-top:8px; }
.out-row { display:flex; align-items:center; gap:10px; border:1px solid var(--border); border-radius:var(--r-md); padding:8px 12px; background:var(--surface-2); }
.out-row .label { font-size:.78rem; font-weight:700; color:var(--fg-muted); width:120px; flex:none; }
.out-row .val { flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

/* ── Data tables (subnet designer etc.) ─────────────────────── */
.table-wrap { overflow-x:auto; margin-top:10px; border:1px solid var(--border); border-radius:var(--r-md); }
.data-table { width:100%; border-collapse:collapse; font-size:.88rem; }
.data-table th, .data-table td { text-align:left; padding:9px 12px; border-bottom:1px solid var(--border); white-space:nowrap; }
.data-table thead th { color:var(--fg-muted); font-weight:700; font-size:.74rem; text-transform:uppercase; letter-spacing:.05em; background:var(--surface-2); }
.data-table td { font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; }
.data-table tr:last-child td { border-bottom:none; }

/* ── FAQ ────────────────────────────────────────────────────── */
.faq h3 { font-family:var(--font); font-size:.98rem; font-weight:700; margin:16px 0 4px; }
.faq h3:first-child { margin-top:0; }
.faq p { margin:0; color:var(--fg-muted); font-size:.92rem; }

/* ── Mobile tweaks ──────────────────────────────────────────── */
@media (max-width:600px){
  .hero { padding-top:48px; }
  .card { padding:20px; }
  .nav a { margin-left:14px; }
}