:root{--bg:#f7f9fc;--card:#fff;--text:#172033;--muted:#667085;--primary:#2563eb;--primary2:#7c3aed;--border:#e5e7eb;--dark:#0f172a}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}.container{width:min(1160px,92%);margin:auto}
.header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.nav{height:72px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:900;font-size:1.3rem;color:var(--text);text-decoration:none;display:flex;align-items:center;gap:7px}.logo{background:var(--primary);color:white;border-radius:10px;padding:6px 9px;font-size:.8rem}.domain{color:var(--primary)}nav{display:flex;gap:22px}nav a{color:var(--muted);text-decoration:none}
.hero{padding:82px 0;background:linear-gradient(135deg,#edf5ff,#f7f0ff)}.hero-grid{display:grid;grid-template-columns:1.5fr .5fr;gap:60px;align-items:center}.eyebrow{color:var(--primary);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem}.hero h1{font-size:clamp(2.5rem,6vw,4.5rem);line-height:1.05;margin:14px 0}.hero h1 span{color:var(--primary)}.hero p{font-size:1.1rem;color:var(--muted);max-width:720px}.hero-actions{display:flex;gap:10px;margin-top:26px}.hero-card{background:#fff;border:1px solid var(--border);border-radius:24px;padding:28px;text-align:center;box-shadow:0 20px 50px #1e293b12}.hero-card #heroQr{margin:auto auto 15px;width:190px}.hero-card strong,.hero-card small{display:block}.hero-card small,.muted{color:var(--muted)}
.section{padding:76px 0}.alt{background:#eef2f7}.section-head{text-align:center;margin-bottom:34px}.section-head h2{font-size:2.2rem;margin:7px 0}.section-head p{color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.tool-card{background:#fff;border:1px solid var(--border);padding:22px;border-radius:17px;text-decoration:none;color:var(--text)}.tool-card b,.tool-card span{display:block}.tool-card span{color:var(--muted);margin-top:7px}
.quick-grid{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:20px}.quick-grid button,.actions button{border:1px solid var(--border);background:#fff;border-radius:9px;padding:10px 13px;cursor:pointer}.generator{display:grid;grid-template-columns:1fr 1fr;gap:20px}.panel,.mini-tool,.tool-console{background:#fff;border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:0 8px 28px #0f172a0a}.tabs{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:20px}.tab{border:1px solid transparent;background:#f1f5f9;padding:9px 12px;border-radius:9px;cursor:pointer}.tab.active{background:#dbeafe;color:#1d4ed8;border-color:#bfdbfe}.field{margin-bottom:13px}.field label,.two label{display:block;font-weight:700}.field input,.field textarea,.field select,.two input,.two select,.mini-tool input,.mini-tool textarea,.tool-console input,.tool-console select{width:100%;padding:11px;border:1px solid var(--border);border-radius:9px;font:inherit;margin-top:5px}.field textarea,.mini-tool textarea{min-height:90px;resize:vertical}.two{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}.btn{border:0;border-radius:10px;padding:11px 16px;font-weight:750;cursor:pointer;display:inline-block}.primary{background:var(--primary);color:#fff}.secondary{background:#fff;border:1px solid var(--border);color:var(--text)}.full{width:100%;margin-top:16px}.result{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:410px}.result #qrcode{min-height:270px;display:flex;align-items:center}.result canvas,.result img{max-width:270px}.actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:20px}.mini-tool h3{margin-top:0}.mini-tool video{width:100%;max-height:220px;margin-top:12px;display:none;border-radius:10px}.mini-tool canvas{max-width:100%;margin-top:12px}.tool-console{max-width:900px;margin:auto}.tool-console canvas{display:block;max-width:100%;margin:20px auto}.pdf-grid,.utility-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.utility-grid .mini-tool textarea{width:100%}.footer{background:var(--dark);color:#cbd5e1;padding:35px 0}.footer-inner{display:flex;justify-content:space-between;gap:20px}.footer p{color:#94a3b8;margin:4px 0}
@media(max-width:900px){nav{display:none}.hero-grid,.generator{grid-template-columns:1fr}.tool-grid{grid-template-columns:1fr 1fr}.feature-grid,.pdf-grid,.utility-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.tool-grid,.feature-grid,.pdf-grid,.utility-grid{grid-template-columns:1fr}.hero{padding:55px 0}.section{padding:55px 0}.footer-inner{flex-direction:column}.two{grid-template-columns:1fr}.hero-actions{flex-direction:column}}