:root{
  --bg:#0b1120; --bg2:#070c17; --panel:#121a2b; --panel2:#182136; --line:#25304a; --line2:#2f3d5c;
  --tx:#e8eefb; --tx2:#8fa2c4; --tx3:#5f7196;
  --acc:#5eead4; --acc2:#7c9cff; --ok:#4ade80; --warn:#fbbf24; --err:#fb7185;
  --mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0}
html,body{height:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--tx);overflow:hidden;-webkit-font-smoothing:antialiased}
button,input,textarea,select{font-family:inherit;color:inherit}
::selection{background:rgba(94,234,212,.28)}

.app{display:grid;grid-template-columns:264px 1fr;height:100dvh}
/* sidebar */
.side{background:var(--bg2);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.brand{display:flex;align-items:center;gap:11px;padding:16px 18px;border-bottom:1px solid var(--line)}
.brand .m{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:19px;background:linear-gradient(150deg,var(--acc),var(--acc2))}
.brand b{font-size:16px;font-weight:800;letter-spacing:.01em;display:block;line-height:1.1}
.brand small{font-size:10px;color:var(--tx3);letter-spacing:.14em;text-transform:uppercase;font-weight:600}
.search{padding:12px 14px;border-bottom:1px solid var(--line)}
.search input{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:9px 12px;font-size:13px}
.search input:focus{outline:none;border-color:var(--acc)}
.nav{overflow-y:auto;padding:10px 10px 24px;scrollbar-width:thin;flex:1}
.nav::-webkit-scrollbar{width:8px}.nav::-webkit-scrollbar-thumb{background:#223049;border-radius:6px}
.grp{font-size:10px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--tx3);padding:14px 10px 6px}
.nlink{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:none;border:0;border-radius:9px;padding:9px 11px;cursor:pointer;color:var(--tx2);font-size:13.5px;font-weight:500;transition:.12s}
.nlink:hover{background:var(--panel);color:var(--tx)}
.nlink.on{background:linear-gradient(90deg,rgba(94,234,212,.16),rgba(124,156,255,.10));color:var(--tx);box-shadow:inset 2px 0 0 var(--acc)}
.nlink .e{width:20px;text-align:center;font-size:15px}
.side-foot{padding:12px 16px;border-top:1px solid var(--line);font-size:11px;color:var(--tx3);line-height:1.6}
.side-foot b{color:var(--tx2)}

/* main */
.main{overflow-y:auto;min-height:0}
.topbar{display:flex;align-items:center;gap:12px;padding:14px 26px;border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(11,17,32,.9);backdrop-filter:blur(8px);z-index:5}
.topbar h1{font-size:18px;font-weight:700}
.topbar .priv{margin-left:auto;font-size:11.5px;color:var(--tx3);display:flex;align-items:center;gap:7px}
.topbar .priv svg{width:15px;height:15px;color:var(--ok);fill:none;stroke:currentColor;stroke-width:2.4}
.wrap{padding:24px 26px 60px;max-width:1000px}
.desc{color:var(--tx2);font-size:14px;margin-bottom:20px;line-height:1.6}

/* controls */
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
label.lbl{font-size:12px;font-weight:600;color:var(--tx2);display:block;margin-bottom:6px}
textarea,input.f,select.f{width:100%;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 13px;font-size:13.5px;font-family:var(--mono);line-height:1.55}
textarea{resize:vertical;min-height:130px}
textarea:focus,input.f:focus,select.f:focus{outline:none;border-color:var(--acc)}
input.f{font-family:var(--mono)}
.btn{font-size:13px;font-weight:600;background:var(--panel2);border:1px solid var(--line2);border-radius:9px;padding:9px 15px;cursor:pointer;transition:.14s;white-space:nowrap}
.btn:hover{border-color:var(--acc);background:#1d2942}
.btn.acc{color:#04241d;background:linear-gradient(90deg,var(--acc),#42d3bd);border-color:transparent;font-weight:700}
.btn.acc:hover{box-shadow:0 0 16px rgba(94,234,212,.35)}
.btn.sm{padding:6px 11px;font-size:12px}
.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:3px;gap:2px}
.seg button{font-size:12.5px;font-weight:600;color:var(--tx2);background:none;border:0;border-radius:7px;padding:7px 13px;cursor:pointer}
.seg button.on{color:#04241d;background:linear-gradient(90deg,var(--acc),var(--acc2))}
.out{background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:13px;font-family:var(--mono);font-size:13px;line-height:1.6;white-space:pre-wrap;word-break:break-word;min-height:52px;position:relative}
.out.empty{color:var(--tx3)}
.cardrow{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:820px){.cardrow{grid-template-columns:1fr}}
.kv{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-family:var(--mono);font-size:13px}
.kv .k{color:var(--tx3)}
.kv .v{color:var(--tx);text-align:right;word-break:break-all}
.copy{position:absolute;top:8px;right:8px;font-size:11px;padding:5px 9px;border:1px solid var(--line2);border-radius:7px;background:var(--panel);color:var(--tx2);cursor:pointer}
.copy:hover{color:var(--tx);border-color:var(--acc)}
.pill{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}
.pill.ok{color:var(--ok);background:rgba(74,222,128,.12);border:1px solid rgba(74,222,128,.3)}
.pill.err{color:var(--err);background:rgba(251,113,133,.12);border:1px solid rgba(251,113,133,.3)}
.pill.warn{color:var(--warn);background:rgba(251,191,36,.12);border:1px solid rgba(251,191,36,.3)}
.note{font-size:12px;color:var(--tx3);margin-top:10px;line-height:1.6}
.hl{background:rgba(94,234,212,.28);border-radius:2px}
mark{background:rgba(124,156,255,.35);color:#fff;border-radius:2px;padding:0 1px}
.chk{display:flex;align-items:center;gap:7px;font-size:12.5px;color:var(--tx2);cursor:pointer;user-select:none}
.chk input{accent-color:var(--acc);width:15px;height:15px}
.mono{font-family:var(--mono)}
.big{font-family:var(--mono);font-size:15px;letter-spacing:.02em}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);opacity:0;background:var(--acc);color:#04241d;font-weight:700;font-size:13px;padding:10px 18px;border-radius:10px;z-index:30;transition:.2s;pointer-events:none}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
/* kotak tujuan per-alat */
.purpose{display:flex;gap:12px;background:linear-gradient(90deg,rgba(94,234,212,.09),rgba(124,156,255,.05));border:1px solid var(--line2);border-left:3px solid var(--acc);border-radius:10px;padding:13px 15px;margin-bottom:18px}
.purpose .pi{font-size:18px;line-height:1.3}
.purpose .pt{font-size:13px;color:var(--tx2);line-height:1.65}
.purpose .pt b{color:var(--tx)}
.purpose .ex{margin-top:8px}
.purpose .ex button{font-size:11.5px;padding:5px 11px;border:1px solid var(--line2);border-radius:8px;background:var(--panel);color:var(--acc);cursor:pointer;font-weight:600}
.purpose .ex button:hover{border-color:var(--acc)}
/* beranda */
.home-hero{padding:8px 0 24px}
.home-hero h2{font-size:26px;font-weight:800;letter-spacing:-.01em;margin-bottom:10px}
.home-hero h2 .g{background:linear-gradient(90deg,var(--acc),var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.home-hero p{color:var(--tx2);font-size:14.5px;line-height:1.7;max-width:680px}
.home-badges{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 6px}
.hb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--tx2);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:9px 13px}
.hb b{color:var(--tx)}
.home-grp{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--tx3);margin:26px 0 12px}
.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.hcard{text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:15px;cursor:pointer;transition:.14s;display:flex;gap:12px;align-items:flex-start}
.hcard:hover{border-color:var(--acc);transform:translateY(-2px);background:var(--panel2)}
.hcard .e{font-size:22px;line-height:1}
.hcard b{font-size:14px;display:block;margin-bottom:3px}
.hcard span{font-size:12px;color:var(--tx2);line-height:1.5}
/* file drop */
.drop{border:2px dashed var(--line2);border-radius:12px;padding:34px;text-align:center;color:var(--tx2);cursor:pointer;transition:.14s}
.drop:hover,.drop.over{border-color:var(--acc);background:rgba(94,234,212,.05);color:var(--tx)}
.drop .big{font-size:15px;font-weight:600;color:var(--tx)}
/* qr */
#qrbox{display:flex;justify-content:center;padding:20px;background:#fff;border-radius:12px;margin-top:12px}
#qrbox svg,#qrbox img{width:260px;height:260px}
/* diff */
.diffline{font-family:var(--mono);font-size:12.5px;white-space:pre-wrap;word-break:break-word;padding:1px 8px;border-radius:3px}
.diffline.add{background:rgba(74,222,128,.14);color:#bbf7d0}
.diffline.del{background:rgba(251,113,133,.14);color:#fecdd3}
.diffline.same{color:var(--tx3)}
/* mobile */
.menutgl{display:none}
@media (max-width:760px){
  .app{grid-template-columns:1fr}
  .side{position:fixed;inset:0 auto 0 0;width:264px;z-index:40;transform:translateX(-100%);transition:.2s}
  body.nav-open .side{transform:none}
  body.nav-open::after{content:"";position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:39}
  .menutgl{display:grid;place-items:center;width:38px;height:38px;border-radius:9px;border:1px solid var(--line2);background:var(--panel);cursor:pointer}
}

/* menu & kartu sebagai <a> (rute berbasis path) */
a.nlink{text-decoration:none}
a.hcard{text-decoration:none;color:var(--tx)}

/* ===== v3.1: beranda skalabel + kartu + alat baru ===== */
/* hitungan di sidebar */
.grp{display:flex;align-items:center}
.grp-cnt{margin-left:auto;font-size:9.5px;font-weight:700;color:var(--tx3);background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:1px 6px}
/* hero beranda */
.home-eyebrow{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.01em;color:var(--acc);background:rgba(94,234,212,.08);border:1px solid var(--line2);padding:5px 12px;border-radius:999px;margin-bottom:14px}
.home-search{position:relative;margin:20px 0 4px;max-width:540px}
.home-search .hs-ic{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:18px;height:18px;fill:none;stroke:var(--tx3);stroke-width:2.2;stroke-linecap:round}
.home-search input{width:100%;background:var(--panel);border:1px solid var(--line2);border-radius:12px;padding:13px 44px;font-size:14px;font-family:var(--sans)}
.home-search input:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 3px rgba(94,234,212,.12)}
.home-search kbd{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-family:var(--mono);font-size:11px;color:var(--tx3);border:1px solid var(--line2);border-bottom-width:2px;border-radius:6px;padding:1px 7px;background:var(--bg2)}
/* chip filter kategori */
.home-filter{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 18px}
.chip{font-size:12.5px;font-weight:600;color:var(--tx2);background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:7px 13px;cursor:pointer;transition:.13s;display:inline-flex;align-items:center;gap:7px}
.chip:hover{border-color:var(--line2);color:var(--tx)}
.chip.on{color:#04241d;background:linear-gradient(90deg,var(--acc),var(--acc2));border-color:transparent}
.chip .cnt{font-size:10.5px;font-weight:700;border-radius:999px;padding:1px 7px;background:var(--panel2);color:var(--tx3)}
.chip.on .cnt{background:rgba(0,0,0,.18);color:#04241d}
.home-grp{display:flex;align-items:center;gap:9px}
.hg-cnt{font-size:10px;font-weight:700;color:var(--tx3);background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:1px 7px}
.empty-note{color:var(--tx2);background:var(--panel);border:1px dashed var(--line2);border-radius:12px;padding:30px;text-align:center;font-size:14px}
/* kartu beranda (markup baru: .hc-t/.hc-d/.hc-go) */
.hcard{align-items:center}
.hcard .hc-t{display:flex;flex-direction:column;gap:1px;flex:1;min-width:0}
.hcard .hc-t b{margin-bottom:2px}
.hcard .hc-d{display:block;font-size:12px;color:var(--tx2);line-height:1.45;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.hcard .hc-go{font-size:17px;font-weight:800;color:var(--acc);opacity:0;transform:translateX(-5px);transition:.16s;flex:none}
.hcard:hover .hc-go{opacity:1;transform:none}
/* alat: color picker kecil */
.cpick{width:46px;height:42px;min-width:46px;border:1px solid var(--line);border-radius:9px;background:none;cursor:pointer;padding:2px}
/* alat: kontras warna */
.contrast-prev{margin-top:14px;border:1px solid var(--line);border-radius:12px;padding:24px 16px;font-size:17px;text-align:center;transition:.1s;color:#111;background:#fff}
/* alat: data uri pratinjau */
.uri-prev{margin-top:12px;display:flex;justify-content:center;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--bg2)}
.uri-prev img{max-width:100%;max-height:220px;border-radius:6px}
/* alat: pratinjau Google (SERP) */
.serp{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-top:2px;overflow:hidden}
.serp-url{color:#202124;font-size:12px;margin-bottom:3px;word-break:break-all}
.serp-title{color:#1a0dab;font-size:18px;line-height:1.3;margin:2px 0;font-weight:500}
.serp-desc{color:#4d5156;font-size:13px;line-height:1.5}
.serp-empty{color:#9aa0a6;font-size:13px;text-align:center;padding:6px 0}
@media (max-width:820px){.home-hero h2{font-size:22px}}

/* ===== v3.2: poles beranda (tile kategori, dot, hero glow, footer) ===== */
.wrap:has(.home-hero){max-width:1180px}
.home-hero{position:relative;padding-top:6px}
.home-hero::before{content:"";position:absolute;right:0;top:-30px;width:60%;max-width:560px;height:290px;background:radial-gradient(58% 90% at 76% 0,rgba(124,156,255,.16),transparent 72%);z-index:0;pointer-events:none}
.home-hero>*{position:relative;z-index:1}
.home-hero h2{font-size:30px;line-height:1.16;letter-spacing:-.015em;max-width:840px}
@media (max-width:820px){.home-hero h2{font-size:23px}}
/* tile emoji kategori pada kartu */
.hcard .e{width:40px;height:40px;min-width:40px;border-radius:11px;display:grid;place-items:center;font-size:20px;line-height:1;background:var(--panel2);border:1px solid var(--line)}
.hcard[data-grp=keamanan] .e{background:rgba(94,234,212,.13);border-color:rgba(94,234,212,.30)}
.hcard[data-grp=encode] .e{background:rgba(124,156,255,.13);border-color:rgba(124,156,255,.30)}
.hcard[data-grp=format] .e{background:rgba(192,132,252,.13);border-color:rgba(192,132,252,.30)}
.hcard[data-grp=generator] .e{background:rgba(251,191,36,.14);border-color:rgba(251,191,36,.30)}
.hcard[data-grp=konversi] .e{background:rgba(251,113,133,.13);border-color:rgba(251,113,133,.30)}
.hcard:hover{border-color:var(--line2);transform:translateY(-3px);background:var(--panel2);box-shadow:0 10px 28px -14px rgba(0,0,0,.55)}
/* dot kategori pada judul grup (beranda + sidebar) */
.gdot{width:8px;height:8px;border-radius:50%;display:inline-block;flex:none;background:var(--tx3)}
.gdot[data-grp=keamanan]{background:#5eead4}.gdot[data-grp=encode]{background:#7c9cff}.gdot[data-grp=format]{background:#c084fc}.gdot[data-grp=generator]{background:#fbbf24}.gdot[data-grp=konversi]{background:#fb7185}
.grp .gdot{margin-right:8px}
.home-grp .gdot{margin-right:3px}
/* ===== v3.4: isi penuh lebar layar (desktop) + tetap mobile-friendly ===== */
/* halaman alat: sedikit lebih lega tapi tetap nyaman dibaca */
.wrap{max-width:1120px}
/* beranda: mengisi penuh lebar (grid katalog memang enak lebar) */
.wrap:has(.home-hero){max-width:none}
/* kartu menambah kolom otomatis saat layar lebar; jadi 1 kolom di HP */
.home-grid{grid-template-columns:repeat(auto-fill,minmax(258px,1fr))}
@media (min-width:1500px){ .wrap:has(.home-hero){padding-left:32px;padding-right:34px} .home-grid{gap:14px} }
@media (min-width:2000px){ .home-grid{grid-template-columns:repeat(auto-fill,minmax(268px,1fr))} }
/* jaga: konten lebar (out/tabel) tak pernah bikin halaman geser horizontal */
.out,.serp,.diffline{max-width:100%}

/* footer beranda */
.home-foot{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);color:var(--tx3);font-size:12.5px;line-height:1.7}
.home-foot a{color:var(--tx2);text-decoration:none}
.home-foot a:hover{color:var(--acc)}

/* ===== v3.3: sidebar kategori collapsible (hindari duplikasi dengan kartu tengah) ===== */
.nav .navhome{margin-bottom:4px}
.nav button.grp{display:flex;align-items:center;width:100%;background:none;border:0;cursor:pointer;font-family:inherit;color:var(--tx3);font-size:10px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;padding:12px 10px 12px;border-radius:9px;transition:.12s;margin-top:2px}
.nav button.grp:hover{color:var(--tx);background:var(--panel)}
.nav button.grp .gdot{margin-right:9px}
.nav button.grp .grp-name{flex:1;text-align:left}
.nav button.grp .grp-cnt{margin-left:0;font-size:9.5px}
.nav button.grp .grp-chev{width:12px;height:12px;margin-left:9px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;opacity:.6;transition:transform .16s}
.nav button.grp.open{color:var(--tx2)}
.nav button.grp.open .grp-chev{transform:rotate(90deg);opacity:.85}
.nav .grp-items{display:none;padding-left:4px}
.nav .grp-items.open{display:block;animation:navExpand .16s ease}
@keyframes navExpand{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:none}}