:root{--ink:#050912;--panel:#0d1524;--white:#f5f8ff;--muted:#a9b9d0;--red:#ff334b;--blue:#27b7ff;--stroke:#263a52}
*{box-sizing:border-box}body{margin:0;background:var(--ink);color:var(--white);font:16px/1.65 Inter,system-ui,sans-serif}a{color:inherit;text-decoration:none}
.shell{width:min(980px,calc(100% - 36px));margin:auto}
.top{position:sticky;top:0;z-index:20;background:#080e19ed;backdrop-filter:blur(15px);border-bottom:1px solid var(--stroke)}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font:900 28px/.9 'Barlow Condensed',Impact,sans-serif;letter-spacing:.7px}.logo b{color:var(--red);text-shadow:0 0 21px #ff334b77}.logo em{color:var(--blue);font-style:normal}
.navlinks{display:flex;align-items:center;gap:18px;font-size:13px;font-weight:700}.navlinks a:hover{color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border:1px solid #ff5969;background:linear-gradient(135deg,#ff3954,#bb112a);color:#fff;border-radius:10px;font-weight:800;font-size:14px;transition:transform .2s}.btn:hover{transform:translateY(-2px);color:#fff}
.guide{padding:40px 0 70px}.crumbs{font-size:13px;color:var(--muted);margin:0 0 6px}.crumbs a:hover{color:var(--blue)}
h1{font:900 clamp(38px,6vw,64px)/1 'Barlow Condensed',Impact,sans-serif;text-transform:uppercase;margin:6px 0 16px}
h2{font:800 24px/1.1 'Barlow Condensed',sans-serif;text-transform:uppercase;color:var(--blue);margin:34px 0 10px;letter-spacing:.5px}
h3{font:800 20px/1.15 'Barlow Condensed',sans-serif;text-transform:uppercase;margin:0 0 4px}
.lead{font-size:18px;color:#c8d6e7;max-width:760px}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:24px 0}.facts div{background:var(--panel);border:1px solid var(--stroke);border-radius:12px;padding:12px 14px;font-weight:700}
.facts b{display:block;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);font-weight:800}
.safety{border:2px solid var(--red);border-radius:14px;padding:4px 20px 10px;background:#ff334b12;margin-top:20px}.safety h2{color:var(--red)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:24px}ul{padding-left:20px}li{margin:6px 0;color:#d9e3f0}li::marker{color:var(--red)}
.steps{list-style:none;padding:0;counter-reset:s}.steps li{counter-increment:s;position:relative;background:var(--panel);border:1px solid var(--stroke);border-radius:14px;padding:16px 18px 14px 64px;margin:12px 0}
.steps li::before{content:counter(s);position:absolute;left:16px;top:14px;width:34px;height:34px;border-radius:50%;background:var(--red);color:#fff;font:900 18px/34px 'Barlow Condensed',sans-serif;text-align:center}
.steps p{margin:0;color:#c8d6e7}.pro{border-left:5px solid #ffd23f;padding-left:16px}.pro h2{color:#ffd23f}
.cta{margin-top:40px;background:linear-gradient(150deg,#14263c,#0b1523);border:1px solid #36536d;border-radius:18px;padding:24px 26px}.cta h2{margin-top:0;color:#fff}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}
.card{display:block;background:var(--panel);border:1px solid var(--stroke);border-radius:16px;padding:20px;transition:transform .2s,border-color .2s}.card:hover{transform:translateY(-3px);border-color:var(--blue)}
.card .tag{font-size:11px;font-weight:800;letter-spacing:2px;text-transform:uppercase}.card p{color:var(--muted);font-size:14px;margin:6px 0 10px}.card .meta{font-size:12px;font-weight:700;color:#c8d6e7}
.foot{border-top:1px solid var(--stroke);padding:24px 0;font-size:12px;color:var(--muted)}.foot .shell{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}.foot a:hover{color:var(--blue)}
@media(max-width:700px){.facts{grid-template-columns:1fr 1fr}.two,.grid{grid-template-columns:1fr}.navlinks a:first-child{display:none}}
.diagram{margin:10px 0 12px;background:#fff;border-radius:12px;overflow:hidden;border:1px solid var(--stroke)}.diagram img{display:block;width:100%;height:auto}.diagram figcaption{background:#fff;color:#444;font-size:12px;padding:6px 12px 8px}
.steps li.crit{border-color:var(--red);box-shadow:0 0 0 1px #ff334b55}
.backapp{position:fixed;left:16px;bottom:16px;z-index:30;align-items:center;gap:6px;padding:12px 18px;border-radius:999px;background:var(--blue);color:#04121f;font-weight:800;font-size:14px;box-shadow:0 8px 24px #000a}
.backapp:hover{color:#04121f;transform:translateY(-2px)}