:root{color-scheme:dark;--bg:#0b1418;--panel:#142329;--panel2:#172b31;--line:#b9e3eb22;--text:#f1f6f8;--muted:#a8bbc0;--cyan:#00c8dc;--max:1120px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.7 Inter,system-ui,-apple-system,"Segoe UI",sans-serif}.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}a{color:inherit}.topbar{border-bottom:1px solid var(--line);background:#0b1418eF}.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand img{display:block;width:156px;height:auto}.navlinks{display:flex;align-items:center;gap:22px;color:var(--muted);font-size:.9rem}.navlinks a{text-decoration:none}.navlinks a:hover,.breadcrumb a:hover{color:var(--cyan)}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 17px;border-radius:11px;background:var(--cyan);color:#04191e;text-decoration:none;font-weight:800}.pagehead{padding:54px 0 35px;background:radial-gradient(ellipse at 75% 15%,#164c5655,transparent 44%)}.breadcrumb{font-size:.82rem;color:var(--muted);margin:0 0 17px}.breadcrumb a{color:var(--muted)}.eyebrow{color:var(--cyan);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;font-weight:850}.pagehead h1{max-width:900px;font-size:clamp(2.1rem,5vw,3.7rem);line-height:1.08;letter-spacing:-.045em;margin:13px 0}.pagehead p{max-width:800px;color:var(--muted);font-size:1.08rem}.content{max-width:850px;padding-bottom:58px}.content h2{font-size:1.6rem;line-height:1.2;letter-spacing:-.025em;margin:37px 0 12px}.content h3{font-size:1.12rem;margin:23px 0 8px}.content p,.content li{color:#c3d0d3}.content ul,.content ol{padding-left:22px}.content li{padding:3px 0}.callout{border:1px solid #00c8dc44;background:linear-gradient(120deg,#123038,#14252b);border-radius:14px;padding:18px 20px;margin:25px 0;color:#c7d7da}.callout strong{color:var(--text)}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:13px 0 58px}.guide-card{display:flex;flex-direction:column;min-height:240px;padding:23px;border-radius:16px;border:1px solid var(--line);background:linear-gradient(145deg,var(--panel2),var(--panel));text-decoration:none}.guide-card:hover{border-color:#00c8dc88;transform:translateY(-2px)}.guide-card h2{font-size:1.2rem;line-height:1.25;margin:12px 0}.guide-card p{color:var(--muted);font-size:.92rem;margin:0 0 18px}.guide-card span:last-child{color:var(--cyan);font-size:.85rem;font-weight:800;margin-top:auto}.related{border-top:1px solid var(--line);padding:25px 0 45px}.related a{color:var(--cyan);margin-right:18px}.site-footer{border-top:1px solid var(--line);padding:25px 0 38px;color:var(--muted);font-size:.85rem}.footerrow{display:flex;align-items:center;justify-content:space-between;gap:20px}.footerrow nav{display:flex;flex-wrap:wrap;gap:17px}.footerrow a{color:var(--muted)}.article-meta{color:var(--muted);font-size:.88rem}.content table{width:100%;border-collapse:collapse}.content th,.content td{text-align:left;padding:10px;border-bottom:1px solid var(--line)}@media(max-width:720px){.container{width:min(var(--max),calc(100% - 30px))}.nav{min-height:68px}.brand img{width:132px}.navlinks{gap:12px;font-size:.8rem}.navlinks .hide-mobile{display:none}.pagehead{padding:40px 0 27px}.pagehead p{font-size:1rem}.guide-grid{grid-template-columns:1fr;padding-bottom:42px}.guide-card{min-height:0}.content h2{font-size:1.4rem}.footerrow{align-items:flex-start;flex-direction:column}}