:root{color-scheme:light dark;--bg:#f6f4ef;--bg-elevated:#fffdf8;--ink:#1a1c1e;--muted:#5c6370;--accent:#0b6bcb;--border:#d9d2c5;--radius:12px;--font:"IBM Plex Sans", "Segoe UI", system-ui, sans-serif;--mono:"IBM Plex Mono", ui-monospace, monospace;--max:42rem}@media (prefers-color-scheme:dark){:root{--bg:#121417;--bg-elevated:#1b1f24;--ink:#eef1f4;--muted:#a0a8b4;--accent:#6db3ff;--border:#2d343c}}*{box-sizing:border-box}html{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.55}body{background:radial-gradient(1200px 500px at 10% -10%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%), var(--bg);min-height:100vh;margin:0}a{color:var(--accent);text-underline-offset:.15em}.shell{width:min(100% - 2rem,56rem);margin:0 auto;padding:1.5rem 0 3rem}.topbar{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.75rem 1.25rem;margin-bottom:2rem;padding-bottom:1rem;display:flex}.brand{letter-spacing:-.02em;color:var(--ink);font-size:1.15rem;font-weight:700;text-decoration:none}.brand-row{flex-wrap:wrap;align-items:baseline;gap:.4rem .5rem;display:flex}.brand-sep{color:var(--muted)}.brand-sub{color:var(--muted);font-weight:500;text-decoration:none}.brand-sub:hover{color:var(--accent)}.brand span{color:var(--muted);font-weight:500}.langs{gap:.75rem;font-size:.9rem;display:flex}.langs a[aria-current=page]{color:var(--ink);font-weight:700;text-decoration:none}.lang-select-wrap{align-items:center;margin:0;display:inline-flex}.lang-select{font:inherit;color:var(--ink);background:var(--bg-elevated);border:1px solid var(--border);cursor:pointer;appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);background-position:calc(100% - 14px) 55%,calc(100% - 9px) 55%;background-repeat:no-repeat;background-size:5px 5px,5px 5px;border-radius:8px;padding:.35rem 1.75rem .35rem .65rem;font-size:.9rem;font-weight:500}.lang-select:focus{outline:2px solid color-mix(in srgb, var(--accent) 55%, transparent);outline-offset:2px}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.15rem}.topic-list{gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.topic-list a{color:inherit;text-decoration:none;display:block}.topic-list h2{margin:0 0 .25rem;font-size:1.05rem}.topic-list p{color:var(--muted);margin:0;font-size:.92rem}.prose{max-width:var(--max)}.prose h1{letter-spacing:-.03em;margin:0 0 .5rem;font-size:1.85rem;line-height:1.2}.prose .lede{color:var(--muted);margin:0 0 1.5rem}.prose h2{margin:1.75rem 0 .5rem;font-size:1.2rem}.prose p,.prose ul{margin:0 0 1rem}.prose ul{padding-left:1.2rem}.prose li+li{margin-top:.35rem}.prose figure{margin:1.25rem 0 1.5rem;padding:0}.prose figure img{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);width:100%;height:auto;display:block}.prose figcaption{color:var(--muted);margin-top:.55rem;font-size:.9rem;line-height:1.4}.prose figure.shot-phone{max-width:22rem;margin-left:auto;margin-right:auto}.back{margin-bottom:1rem;font-size:.92rem;display:inline-block}.footer{border-top:1px solid var(--border);color:var(--muted);margin-top:2.5rem;padding-top:1rem;font-size:.85rem}.footer-links{flex-wrap:wrap;align-items:center;gap:.35rem .5rem;margin:0;display:flex}.footer a{color:var(--muted);text-decoration:none}.footer a:hover{color:var(--accent)}.landing-body{min-height:100vh}.landing{flex-direction:column;width:min(100% - 2rem,40rem);min-height:100vh;margin:0 auto;padding:1.5rem 0 3.5rem;display:flex}.landing-top{justify-content:space-between;align-items:center;gap:1rem;margin-bottom:18vh;display:flex}.landing-locale{flex-direction:column;flex:1;min-height:0;display:flex}.landing-locale[hidden]{display:none!important}.landing-hero{flex:1}.landing-brand{letter-spacing:-.04em;color:var(--ink);margin:0 0 1rem;font-size:clamp(2.4rem,8vw,3.6rem);font-weight:700;line-height:1.05}.landing-hero h1{letter-spacing:-.02em;margin:0 0 .85rem;font-size:clamp(1.35rem,4vw,1.75rem);font-weight:500;line-height:1.25}.landing-support{color:var(--muted);max-width:28rem;margin:0 0 1.75rem;font-size:1.05rem}.landing-cta{flex-wrap:wrap;gap:.75rem;display:flex}.btn{border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;padding:.7rem 1.15rem;font-size:.95rem;font-weight:600;text-decoration:none;display:inline-flex}.btn-primary{background:var(--ink);color:var(--bg)}.btn-secondary{color:var(--ink);border-color:var(--border);background:0 0}.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}.landing-note{border-top:1px solid var(--border);color:var(--muted);margin-top:auto;padding-top:2.5rem;font-size:.95rem}.landing-note p{max-width:32rem;margin:0}.landing-footer{color:var(--muted);flex-wrap:wrap;align-items:center;gap:.35rem .5rem;margin-top:1.75rem;font-size:.85rem;display:flex}.landing-footer a{color:var(--muted);text-decoration:none}.landing-footer a:hover{color:var(--accent)}