:root{--ink:#0f1c2e;--muted:#5b7186;--primary:#4f46e5;--primary2:#0891b2;--bg:#f5f7fb;--card:#fff;--line:#e3eaf3;--gold:#f59e0b;--radius:16px;--shadow:0 6px 24px rgba(15,28,46,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
h1,h2,h3,.logo-text{font-family:'Sora','Inter',sans-serif;letter-spacing:-.01em}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
header.site{background:rgba(11,22,38,.97);backdrop-filter:blur(8px);color:#fff;position:sticky;top:0;z-index:60;box-shadow:0 2px 14px rgba(0,0,0,.25)}
header.site .wrap{display:flex;gap:20px;align-items:center;padding:10px 20px}
.brand{display:flex;align-items:center;gap:11px;color:#fff}.brand:hover{text-decoration:none}
.brand img{width:40px;height:40px;border-radius:10px}
.logo-text{font-weight:800;font-size:20px;line-height:1.05;color:#fff}.logo-text span{background:linear-gradient(90deg,#818cf8,#22d3ee);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-sub{font-size:11px;color:#9db4cc;letter-spacing:.14em;text-transform:uppercase}
nav.main{margin-left:auto;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
nav.main a{color:#dbeafe;padding:9px 13px;border-radius:10px;font-size:15px;font-weight:600}
nav.main a:hover{background:rgba(255,255,255,.1);text-decoration:none;color:#fff}
nav.main a.cta{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff}
.hero{background:radial-gradient(900px 420px at 15% -10%,#3730a3 0,transparent 60%),linear-gradient(135deg,#0b1626,#1e2a52 55%,#0e4a5f);color:#fff;padding:58px 0 44px}
.hero h1{font-size:clamp(28px,4.6vw,44px);line-height:1.15;margin:0 0 12px;max-width:820px}
.hero p{opacity:.93;max-width:740px;font-size:17px}
.searchbox{width:100%;max-width:600px;padding:15px 18px;border-radius:14px;border:0;font-size:16px;margin-top:14px;box-shadow:var(--shadow);font-family:inherit}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:16px;margin:24px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:block;color:var(--ink);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
a.card:hover{text-decoration:none;transform:translateY(-5px);box-shadow:0 16px 34px rgba(79,70,229,.16);border-color:#c3cbf5}
.card h3{margin:10px 0 6px;font-size:18px;line-height:1.3}.card p{margin:0;color:var(--muted);font-size:14px}
.card .go{display:inline-block;margin-top:12px;font-weight:700;font-size:14px;color:var(--primary)}
a.card:hover .go{text-decoration:underline}
.tile{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.35)}
.tile svg{width:27px;height:27px}
.tile.calculators{background:linear-gradient(135deg,#4f46e5,#7c3aed)}
.tile.image{background:linear-gradient(135deg,#db2777,#f59e0b)}
.tile.generators{background:linear-gradient(135deg,#0891b2,#22c55e)}
.tile.text{background:linear-gradient(135deg,#2563eb,#06b6d4)}
.tile.converters{background:linear-gradient(135deg,#ea580c,#f59e0b)}
.tile.default{background:linear-gradient(135deg,#334155,#64748b)}
.badge{display:inline-block;background:#eef2ff;color:var(--primary);border-radius:20px;padding:2px 11px;font-size:12px;font-weight:700;margin-top:10px}
.toolbox{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;margin:18px 0;box-shadow:var(--shadow)}
label{font-weight:600;display:block;margin-top:6px}
.hint{font-size:13px;color:var(--muted);margin:2px 0 6px}
input,select,textarea{width:100%;padding:12px 13px;border:1.5px solid #cbd7e4;border-radius:11px;font-size:16px;margin:4px 0 12px;background:#fff;font-family:inherit;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(79,70,229,.14)}
textarea{min-height:150px}
button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--primary),#4338ca);color:#fff;border:0;padding:12px 20px;border-radius:11px;font-size:16px;font-weight:600;cursor:pointer;margin:4px 6px 4px 0;min-height:46px;transition:transform .15s,box-shadow .15s,filter .15s;font-family:inherit}
button:hover,.btn:hover{filter:brightness(1.1);box-shadow:0 8px 20px rgba(79,70,229,.3);text-decoration:none}
button:active,.btn:active{transform:scale(.98)}
button.ghost,.btn.ghost{background:#eef2ff;color:var(--primary)}
button.gold,.btn.gold{background:linear-gradient(135deg,#f59e0b,#d97706);color:#1c1005}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.result{background:#ecfdf5;border:1px solid #a7f3d0;border-radius:12px;padding:15px;margin-top:14px;display:none;white-space:pre-wrap;word-break:break-word;font-weight:600}
.result.show{display:block}
.ad-slot{margin:16px auto;text-align:center;max-width:760px}
.ad-placeholder{border:1px dashed #b9c8d8;border-radius:10px;padding:10px;color:#7b8b9c;font-size:12px;background:#fbfcfe}
.support-box{background:#fffbeb;border:1px solid #fde68a;border-radius:14px;padding:16px;margin:16px 0;display:none}
.support-box.show{display:block}
section.content{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;margin:18px 0;box-shadow:0 3px 14px rgba(15,28,46,.04)}
section.content h2{margin-top:22px}section.content h2:first-child{margin-top:0}
h1.page{font-size:clamp(25px,3.6vw,34px);line-height:1.22;margin:8px 0 6px}
.page-head{display:flex;gap:16px;align-items:flex-start;margin-top:22px}
.page-head .tile{flex:0 0 auto;width:60px;height:60px;border-radius:16px}.page-head .tile svg{width:32px;height:32px}
.crumbs{font-size:13px;color:var(--muted);margin-top:18px}.crumbs a{color:var(--muted);font-weight:600}
.steps-strip{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 2px}
.step-chip{background:#fff;border:1px solid var(--line);border-radius:30px;padding:7px 14px;font-size:13.5px;font-weight:600;color:var(--ink)}
.step-chip b{color:var(--primary)}
.meta{color:var(--muted);font-size:15px}
.blog-hero{width:100%;height:auto;border-radius:14px;margin:6px 0 16px;display:block}
.qr-stage{background:#fff;border:1.5px dashed #c3cbf5;border-radius:14px;padding:18px;text-align:center;min-height:200px;display:flex;align-items:center;justify-content:center;flex-direction:column}
.qr-stage svg{width:240px;height:240px;max-width:80vw}
footer.site{background:#0b1626;color:#b9cbdd;margin-top:44px}
footer .top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px;padding:36px 0 8px}
footer h4{color:#fff;font-family:'Sora',sans-serif;margin:0 0 12px;font-size:16px}
footer a{color:#a9c3de;display:block;padding:3px 0;font-size:14.5px}
footer a:hover{color:#fff}
footer .brandline{display:flex;gap:11px;align-items:center}
footer .bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding:16px 0 22px;display:flex;gap:14px;flex-wrap:wrap;justify-content:space-between;font-size:13.5px;color:#8fa6bd}
.socials{display:flex;gap:9px;margin-top:14px}.socials a{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;padding:0}.socials svg{width:18px;height:18px;fill:#dbeafe}
.price{font-size:32px;font-weight:800;font-family:'Sora',sans-serif}
.small{font-size:13px;color:var(--muted)}
table{width:100%;border-collapse:collapse}td,th{border-bottom:1px solid var(--line);padding:9px;text-align:left}
canvas{max-width:100%;border:1px solid var(--line);border-radius:10px;background:#fff}
img.preview{max-width:100%;border-radius:12px}
.page-img{width:100%;border-radius:12px;margin:8px 0}
@media(max-width:900px){footer .top{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.row{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.wrap{padding:0 15px}header.site .wrap{padding:9px 15px}nav.main a{padding:8px 9px;font-size:14px}.toolbox{padding:18px}section.content{padding:19px}button,.btn{width:100%;margin-right:0}.support-box .btn{width:auto}footer .top{grid-template-columns:1fr}.hero{padding:40px 0 32px}}
/* ===== V3: professional mobile navigation + zero horizontal scroll ===== */
html,body{overflow-x:hidden;max-width:100%}
body{overflow-wrap:break-word}
img,svg,video,canvas,iframe,table{max-width:100%}
.burger{display:none;margin-left:auto;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.2);width:46px;height:46px;min-height:46px;padding:11px;border-radius:11px;cursor:pointer}
.burger svg{width:23px;height:23px;stroke:#fff;display:block}
nav.main a{white-space:nowrap}
@media(max-width:860px){
 .burger{display:flex;align-items:center;justify-content:center}
 header.site .wrap{flex-wrap:wrap;row-gap:4px}
 nav.main{display:none;width:100%;margin:8px 0 6px;flex-direction:column;align-items:stretch;gap:4px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:8px}
 nav.main.open{display:flex}
 nav.main a{display:block;padding:13px 14px;font-size:16px;border-radius:9px}
 nav.main a.cta{text-align:center;margin-top:2px}
 .grid{grid-template-columns:repeat(auto-fill,minmax(min(248px,100%),1fr))}
 .page-head{flex-direction:column}
}
@media(max-width:560px){
 .logo-text{font-size:17px}.logo-sub{font-size:9.5px;letter-spacing:.11em}
 .brand img{width:36px;height:36px}
 footer .top{grid-template-columns:1fr}
 .steps-strip{gap:7px}.step-chip{font-size:12.5px;padding:6px 11px}
}