:root{--bg:#081019;--panel:#0d1a26;--panel-2:#112231;--text:#f4f8fb;--muted:#a8b9c8;--cyan:#47d7ff;--cyan-soft:#99eaff;--line:rgba(153,234,255,.18);--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 80% 0,rgba(71,215,255,.09),transparent 28rem),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.7}
a{color:inherit}.guide-nav,.guide-footer,.guide-shell{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
.guide-nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.guide-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;letter-spacing:-.02em}.guide-brand img{width:34px;height:34px}.guide-nav nav,.guide-footer nav{display:flex;align-items:center;gap:24px}.guide-nav nav a,.guide-footer a{color:var(--muted);text-decoration:none}.guide-nav nav a:hover,.guide-nav nav a:focus-visible,.guide-footer a:hover,.guide-footer a:focus-visible{color:var(--cyan)}
.guide-shell{padding:28px 0 72px}.breadcrumbs{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-bottom:46px}.breadcrumbs a{color:var(--cyan-soft);text-decoration:none}
.guides-hero,.article-header{max-width:850px;padding:42px 0 54px}.eyebrow{color:var(--cyan);font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.16em;margin:0 0 12px}
h1,h2,h3{line-height:1.15;letter-spacing:-.035em}h1{font-size:clamp(2.7rem,7vw,5.6rem);margin:.1em 0 .25em}.guides-hero>p:last-child,.lede{font-size:clamp(1.08rem,2vw,1.3rem);color:var(--muted);max-width:760px}
.section-heading{margin:24px 0}.section-heading h2,.related>h2{font-size:clamp(1.8rem,4vw,3rem);margin:0}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.guide-card{display:flex;flex-direction:column;min-height:280px;padding:28px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,rgba(17,34,49,.95),rgba(13,26,38,.75));text-decoration:none;transition:transform .2s,border-color .2s}.guide-card:hover,.guide-card:focus-visible{transform:translateY(-3px);border-color:var(--cyan)}.guide-card span{color:var(--cyan);font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;font-weight:800}.guide-card h3{font-size:1.55rem;margin:18px 0 10px}.guide-card p{color:var(--muted);margin:0 0 24px}.guide-card b{color:var(--cyan-soft);margin-top:auto}
.editorial,.note,.quick-plan{margin:50px 0 0;padding:28px;border-left:3px solid var(--cyan);background:var(--panel);border-radius:0 14px 14px 0}.editorial{max-width:850px}.editorial h2,.note h2,.quick-plan h2{margin-top:0}.editorial p,.note p{color:var(--muted);margin-bottom:0}
.guide-article{max-width:800px;margin-inline:auto}.article-header{padding-top:8px}.article-header h1{font-size:clamp(2.5rem,6vw,4.8rem)}.article-meta{color:var(--muted);font-size:.9rem}.guide-article>section{padding:30px 0;border-top:1px solid var(--line)}.guide-article>section h2{font-size:clamp(1.55rem,3vw,2.15rem);margin:0 0 16px}.guide-article>section p{color:#d3dee6}.quick-plan{margin:0 0 45px}.quick-plan ol{padding-left:22px;margin-bottom:0}.quick-plan li+li{margin-top:8px}.related{margin-top:70px;border-top:1px solid var(--line);padding-top:42px}.related .guide-grid{margin-top:24px}.related .guide-card{min-height:250px}
.guide-footer{display:grid;grid-template-columns:auto 1fr auto;gap:30px;align-items:center;padding:30px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}.guide-footer nav{justify-content:center;flex-wrap:wrap}
@media(max-width:760px){.guide-nav{align-items:flex-start;padding:18px 0;gap:18px}.guide-nav nav{flex-direction:column;align-items:flex-end;gap:5px}.guide-grid{grid-template-columns:1fr}.guide-card{min-height:0}.guide-footer{grid-template-columns:1fr}.guide-footer nav{justify-content:flex-start;gap:12px 20px}.guides-hero,.article-header{padding-top:20px}h1{font-size:2.7rem}}
@media(max-width:430px){.guide-nav,.guide-footer,.guide-shell{width:min(100% - 28px,var(--max))}.guide-brand img{width:30px;height:30px}.guide-nav nav{font-size:.85rem}.guide-card,.editorial,.note,.quick-plan{padding:22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.guide-card{transition:none}}