@font-face{font-family:Inter;font-style:normal;font-weight:100 900;font-display:swap;src:url(/fonts/inter.woff2) format("woff2")}:root{--bg:#ffffff;--fg:#16202a;--muted:#586573;--accent:#0d7680;--accent-2:#0a5b63;--accent-fg:#fff;--ink:#0c2226;--panel:#f5f8f8;--border:#e3e9ea;--rule:#eef2f2;--warn-bg:#fbf3ea;--warn-bd:#f0d3b4;--warn-fg:#8a4b16;--info-bg:#eef6f6;--info-bd:#cfe4e5;--shadow:0 1px 2px rgba(12,34,38,.04),0 14px 34px -22px rgba(12,34,38,.22);--radius:12px;--max:1180px;--font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--color-bg:var(--bg);--color-fg:var(--fg);--color-muted:var(--muted);--color-accent:var(--accent);--color-panel:var(--panel)}*,*:before,*:after{box-sizing:border-box}html{color-scheme:light}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font);font-size:16px;line-height:1.62;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--accent);text-decoration:none}strong{font-weight:650}.wrap{max-width:var(--max);margin-inline:auto;padding-inline:22px}.skip-link{position:absolute;left:-999px}.skip-link:focus{left:1rem;top:1rem;background:#fff;padding:.5rem;z-index:50}.i{display:inline-block;vertical-align:middle;width:1.1em;height:1.1em;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}.topbar{background:var(--ink);color:#e8f2f2;position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(255,255,255,.06)}.topbar .wrap{display:flex;align-items:center;gap:20px;height:64px}.logo{font-weight:800;font-size:18px;color:#fff;white-space:nowrap;letter-spacing:-.01em}.logo b{color:#54c6cf}.topnav{display:flex;gap:20px;font-size:14px;font-weight:550}.topnav a{color:#a9c6c8}.topnav a:hover{color:#fff}.search{margin-left:auto;flex:1 1 300px;max-width:420px;position:relative;display:flex;align-items:center}.search .i{position:absolute;left:14px;color:#7f9698;width:17px;height:17px}.search input{width:100%;border:1px solid rgba(255,255,255,.12);border-radius:9px;padding:10px 14px 10px 40px;font-size:14px;background:#ffffff0f;color:#fff}.search input::placeholder{color:#8aa3a5}.search input:focus{outline:2px solid var(--accent);background:#fff;color:var(--fg)}.btn-ghost{display:inline-flex;align-items:center;gap:7px;border:1px solid rgba(255,255,255,.28);color:#fff;font-weight:600;font-size:13.5px;padding:8px 14px;border-radius:9px;white-space:nowrap}.btn-ghost:hover{background:#ffffff14}.btn-ghost .i{width:15px;height:15px}.nav-wrap{display:flex;align-items:center;gap:20px;flex:1;min-width:0}.nav-toggle{display:none;background:none;border:0;color:#e8f2f2;cursor:pointer;padding:6px;margin-left:auto}.nav-toggle .i{width:24px;height:24px}.nav-toggle .ic-close{display:none}.crumbs{background:var(--panel);border-bottom:1px solid var(--border);font-size:13px;color:var(--muted)}.crumbs .wrap{padding-block:11px}.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--accent)}.crumbs b{color:var(--fg);font-weight:600}.docs{display:grid;grid-template-columns:238px minmax(0,1fr) 250px;gap:34px;align-items:start;padding-block:30px 54px}.side{position:sticky;top:88px}.side h4,.side-h{font-size:11.5px;text-transform:uppercase;letter-spacing:.11em;color:var(--muted);margin:0 0 11px;font-weight:700}.cat-nav{list-style:none;margin:0 0 28px;padding:0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow)}.cat-nav li a{display:flex;align-items:center;gap:11px;padding:11px 14px;color:var(--fg);font-size:14px;font-weight:550;border-bottom:1px solid var(--rule)}.cat-nav li:last-child a{border-bottom:0}.cat-nav li a:hover{background:var(--panel)}.cat-nav li a.active{background:var(--accent);color:#fff}.cat-nav .i{width:18px;height:18px;color:var(--accent)}.cat-nav a.active .i{color:#fff}.pop{list-style:none;margin:0;padding:0}.pop li{border-bottom:1px solid var(--rule)}.pop li:last-child{border-bottom:0}.pop a{display:block;padding:9px 0;font-size:13.5px;font-weight:550}.pop .code{display:inline-block;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;font-weight:700;color:var(--accent);min-width:56px}.doc-main{min-width:0}.kicker{font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 9px}h1{font-size:clamp(27px,3.6vw,37px);line-height:1.12;letter-spacing:-.022em;margin:0 0 16px;font-weight:800}.chip{display:inline-block;background:var(--accent);color:#fff;font-family:ui-monospace,Menlo,Consolas,monospace;font-weight:700;padding:2px 9px;border-radius:6px;font-size:.78em;vertical-align:middle}.disc{font-size:12.5px;color:var(--muted);margin:0 0 22px}h2{font-size:clamp(19px,2.3vw,23px);line-height:1.22;letter-spacing:-.015em;margin:32px 0 13px;scroll-margin-top:84px;font-weight:750}.h2-note{font-weight:500;font-size:13px;color:var(--muted);letter-spacing:0;margin-left:8px}.doc-main p{margin:0 0 12px}.hero{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:0 0 22px}.fact{background:#fff;border:1px solid var(--border);border-radius:13px;box-shadow:var(--shadow);padding:15px 17px}.fact .l{display:block;font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--accent);margin-bottom:6px}.fact .v{display:block;font-size:15px;line-height:1.45;color:var(--fg)}.alert{display:flex;gap:12px;border-radius:11px;padding:13px 15px;margin:0 0 22px;font-size:14.5px;border:1px solid;align-items:flex-start}.alert .i{width:20px;height:20px;margin-top:1px}.alert.warn{background:var(--warn-bg);border-color:var(--warn-bd);color:var(--warn-fg)}.alert.info{background:var(--info-bg);border-color:var(--info-bd)}.causes{list-style:none;margin:0;padding:0}.causes li{display:flex;align-items:center;gap:14px;padding:10px 0;border-bottom:1px solid var(--rule)}.causes li:last-child{border-bottom:0}.causes .nm{flex:1;font-weight:550;font-size:15px}.meter{flex:0 0 138px;background:#e6eded;border-radius:5px}.meter i{display:block;height:7px;background:var(--accent);border-radius:5px;min-width:6%}.checks{list-style:none;counter-reset:s;margin:0;padding:0}.checks li{counter-increment:s;position:relative;padding:3px 0 14px 42px;line-height:1.55}.checks li:before{content:counter(s);position:absolute;left:0;top:0;width:28px;height:28px;display:grid;place-items:center;background:var(--accent);color:#fff;border-radius:8px;font-weight:700;font-size:13px}.diagram{margin:8px 0 22px;padding:22px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius)}.diagram svg.fig{display:block;width:100%;max-width:330px;height:auto;margin:0 auto 10px}.diagram figcaption{font-size:13px;color:var(--muted);text-align:center}.d-line{stroke:#aebcbd;stroke-width:2.2;fill:none}.d-soft{fill:#e9f1f1}.d-ac{stroke:var(--accent);stroke-width:2.4;fill:none}.d-acf{fill:var(--accent)}.d-t{fill:var(--muted);font-size:9px;font-weight:700;letter-spacing:.08em}.d-ta{fill:var(--accent);font-size:9px;font-weight:700}.cta{margin:6px 0 24px}.btn{display:inline-flex;align-items:center;gap:9px;background:var(--accent);color:#fff;font-weight:700;font-size:15px;padding:13px 22px;border-radius:10px;box-shadow:0 10px 24px -12px #0d7680b3}.btn:hover{background:var(--accent-2)}.btn .i{width:17px;height:17px}.cta .n{display:block;margin-top:8px;font-size:13px;color:var(--muted)}.faq details{border:1px solid var(--border);border-radius:11px;margin:0 0 10px;background:#fff;overflow:hidden}.faq summary{cursor:pointer;padding:14px 16px;font-weight:650;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}.faq summary::-webkit-details-marker{display:none}.faq summary .i{width:18px;height:18px;color:var(--accent);transition:transform .2s}.faq details[open] summary .i{transform:rotate(45deg)}.faq .a{padding:0 16px 14px;color:var(--fg)}.trust{margin:24px 0;padding:20px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius)}.au{display:flex;gap:13px;align-items:flex-start;margin-bottom:14px}.av{flex:0 0 44px;width:44px;height:44px;border-radius:999px;display:grid;place-items:center;background:var(--accent);color:#fff;font-weight:700;letter-spacing:.02em}.au .nm{font-weight:750;font-size:15px}.au .ro{font-size:13px;color:var(--muted)}.au .bi{font-size:14px;margin-top:5px}.tmeta{display:flex;flex-wrap:wrap;gap:9px 16px;align-items:center;font-size:13px;color:var(--muted);border-top:1px solid var(--rule);padding-top:12px}.tmeta .mi{display:inline-flex;align-items:center;gap:6px}.tmeta .i{width:14px;height:14px;color:var(--muted)}.badge{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--accent);border:1.5px solid var(--accent);padding:4px 10px;border-radius:999px}.badge .i{width:13px;height:13px}.pn{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}.pn a{border:1px solid var(--border);border-radius:11px;padding:13px 15px;background:#fff}.pn .s{font-size:12px;color:var(--muted)}.pn .t{font-weight:650;font-size:14px;margin-top:3px}.pn a:last-child{text-align:right}.toc{border:1px solid var(--border);border-radius:var(--radius);background:#fff;padding:15px 16px;box-shadow:var(--shadow);margin-bottom:18px}.toc h4,.toc .side-h{margin-top:0}.toc ul{list-style:none;margin:0;padding:0}.toc li{margin:0 0 8px}.toc a{font-size:13.5px;color:var(--muted)}.toc a:hover{color:var(--accent)}.helpful{border:1px solid var(--border);border-radius:var(--radius);background:#fff;padding:16px;text-align:center;margin-bottom:18px;box-shadow:var(--shadow)}.helpful p{font-weight:650;margin:0 0 11px;font-size:14px}.helpful button{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--border);background:#fff;border-radius:8px;padding:7px 13px;margin:0 3px;font-weight:650;cursor:pointer;color:var(--fg);font-size:13.5px}.helpful button:hover{border-color:var(--accent);color:var(--accent)}.helpful button .i{width:15px;height:15px}.helpful-thanks{color:var(--accent);font-weight:650;margin:0}.ad{min-height:240px;display:grid;place-items:center;border:1px dashed var(--border);border-radius:var(--radius);background:repeating-linear-gradient(45deg,#fafbfb,#fafbfb 10px,#f3f5f6 10px 20px);color:#9aa6a7;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.home-hero{background:linear-gradient(170deg,var(--ink),#0f4147);color:#fff;text-align:center;padding:58px 22px 64px}.home-hero h1{color:#fff;margin:0 0 10px;font-size:clamp(27px,4vw,40px)}.home-hero p{color:#bfe0e1;margin:0 auto 24px;max-width:560px}.home-search{max-width:520px;margin:0 auto;position:relative;display:flex;align-items:center}.home-search .i{position:absolute;left:18px;color:#8aa3a5;width:19px;height:19px}.home-search input{width:100%;border:0;border-radius:11px;padding:15px 18px 15px 46px;font-size:16px}.home-search input:focus{outline:3px solid rgba(84,198,207,.5)}.section-h{text-align:center;font-size:clamp(21px,2.6vw,27px);margin:46px 0 6px;font-weight:800;letter-spacing:-.02em}.section-sub{text-align:center;color:var(--muted);margin:0 0 28px}.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{display:block;border:1px solid var(--border);border-radius:var(--radius);background:#fff;padding:22px;box-shadow:var(--shadow);transition:.15s}.card:hover{border-color:var(--accent);transform:translateY(-2px)}.card .ci{width:46px;height:46px;border-radius:11px;display:grid;place-items:center;margin-bottom:13px;background:#e8f2f2;color:var(--accent)}.card .ci .i{width:24px;height:24px}.card h3{margin:0 0 5px;font-size:16.5px;color:var(--fg);font-weight:700}.card p{margin:0;font-size:13.5px;color:var(--muted)}.codes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.code-card{border:1px solid var(--border);border-radius:11px;padding:16px;background:#fff;transition:.15s}.code-card:hover{border-color:var(--accent)}.code-card .c{font-family:ui-monospace,Menlo,Consolas,monospace;font-weight:700;color:var(--accent);font-size:14px}.code-card .t{font-weight:550;font-size:14px;margin-top:4px;color:var(--fg);display:block}.foot{background:var(--ink);color:#a9c6c8;margin-top:52px;padding:42px 0 30px;font-size:14px}.foot-cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}.foot h5,.foot-h,.foot-brand{color:#fff;font-size:14px;margin:0 0 13px;font-weight:700}.foot a{color:#a9c6c8;display:block;margin:0 0 8px}.foot a:hover{color:#fff}.foot .lead{color:#8fb4b6;max-width:330px}.foot-fine{border-top:1px solid #173b40;margin-top:28px;padding-top:18px;color:#6f9698;font-size:12.5px}.list-filter{width:100%;max-width:420px;margin:0 auto 22px;display:block;border:1px solid var(--border);border-radius:10px;padding:11px 15px;font-size:15px;font-family:inherit}.list-filter:focus{outline:2px solid var(--accent);border-color:var(--accent)}.list-empty{text-align:center;color:var(--muted);padding:20px 0}.legal{max-width:760px;margin-inline:auto;padding:34px 22px 54px}.legal h1{margin-bottom:6px}.legal .updated{color:var(--muted);font-size:13px;margin:0 0 26px}.legal h2{font-size:20px;margin:28px 0 10px}.legal p,.legal ul{margin:0 0 14px}.legal ul{padding-left:20px}.legal li{margin:0 0 6px}.band{background:var(--ink);color:#fff;text-align:center;padding:38px 22px}.band h3{margin:0 0 7px;font-weight:750}.band p{color:#bfe0e1;margin:0 0 18px}.btn-cta{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--ink);font-weight:700;font-size:15px;padding:12px 22px;border-radius:10px}.btn-cta:hover{background:#eafafa}.btn-cta .i{width:16px;height:16px}@media(max-width:980px){.docs{grid-template-columns:1fr;gap:0}.side{position:static}.side-left{order:2;margin-top:32px}.side-right{order:3;margin-top:10px}.toc{display:none}.cat-grid,.codes-grid{grid-template-columns:repeat(2,1fr)}.foot-cols{grid-template-columns:1fr 1fr}}@media(max-width:820px){.topbar .wrap{position:relative;flex-wrap:wrap}.nav-toggle{display:inline-flex;align-items:center}.nav-wrap{display:none;position:absolute;top:100%;left:0;right:0;flex:none;flex-direction:column;align-items:stretch;gap:0;background:var(--ink);border-top:1px solid rgba(255,255,255,.08);box-shadow:0 16px 30px #00000059;padding:6px 0}.nav-wrap.open{display:flex}.topnav{flex-direction:column;gap:0}.topnav a{padding:13px 22px}.search{margin:8px 18px;max-width:none;flex:none}.btn-ghost{margin:6px 18px 10px;justify-content:center}.nav-toggle[aria-expanded=true] .ic-open{display:none}.nav-toggle[aria-expanded=true] .ic-close{display:inline-block}}@media(max-width:620px){.hero,.cat-grid,.codes-grid,.pn,.foot-cols{grid-template-columns:1fr}.meter{flex-basis:96px}}