:root{--accent: #4f46e5;--accent-dark: #4338ca;--accent-soft: #e0e7ff;--warm: #d97706;--warm-soft: #fef3c7;--ok: #15803d;--ok-soft: #dcfce7;--bad: #b91c1c;--bg: #fafaf9;--bg-raise: #ffffff;--bg-deep: #eef2ff;--ink: #1e1b4b;--ink-body: #3f3f46;--ink-muted: #71717a;--line: #e4e4e7;--line-accent: #c7d2fe;--shadow: 4px 4px 0 rgba(30, 27, 75, .09);--serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, "Times New Roman", serif}@media(prefers-color-scheme:dark){:root{--accent: #818cf8;--accent-dark: #a5b4fc;--accent-soft: #312e81;--warm: #fbbf24;--warm-soft: #451a03;--ok: #4ade80;--ok-soft: #14532d;--bad: #f87171;--bg: #18181b;--bg-raise: #27272a;--bg-deep: #1e1b3a;--ink: #f4f4f5;--ink-body: #d4d4d8;--ink-muted: #a1a1aa;--line: #3f3f46;--line-accent: #3730a3;--shadow: 4px 4px 0 rgba(0, 0, 0, .5)}}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--ink-body);line-height:1.7;-webkit-font-smoothing:antialiased}.shell{max-width:46rem;margin:0 auto;padding:0 1.25rem}a{color:var(--accent)}code.inline{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--accent-soft);color:var(--ink);padding:.08rem .4rem;font-size:.9em;font-weight:700}.code-bar{position:sticky;top:0;z-index:30;background:var(--ink);color:#fff;font-size:.85rem;padding:.55rem 1rem;display:flex;align-items:center;justify-content:center;gap:.75rem;flex-wrap:wrap}@media(prefers-color-scheme:dark){.code-bar{background:#0c0a1d;color:#f4f4f5}}.code-bar code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#ffffff24;padding:.1rem .55rem;font-weight:700;letter-spacing:.04em}.code-bar button{background:var(--accent);color:#fff;border:none;cursor:pointer;font:inherit;font-weight:700;font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;padding:.35rem .95rem}.code-bar button:hover{background:var(--accent-dark)}.code-bar button[data-state=copied]{background:var(--ok)}.code-bar button[data-state=error]{background:var(--bad)}@media(prefers-color-scheme:dark){.code-bar button[data-state=copied],.code-bar button[data-state=error]{color:#18181b}}.site-nav{border-bottom:1px solid var(--line);background:var(--bg-raise);font-size:.85rem}.site-nav .shell{display:flex;align-items:center;gap:.4rem 1.4rem;flex-wrap:wrap;padding-top:.8rem;padding-bottom:.8rem}.site-nav a{text-decoration:none;font-weight:600;color:var(--ink-muted);padding:.15rem 0}.site-nav a:hover{color:var(--ink)}.site-nav a[aria-current=page]{color:var(--accent);border-bottom:2px solid var(--accent)}.btn{display:inline-flex;align-items:center;gap:.45rem;background:var(--accent);color:#fff;border:2px solid var(--accent);cursor:pointer;font:inherit;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:.65rem 1.4rem;text-decoration:none;transition:background .2s,transform .15s,box-shadow .15s}.btn:hover{background:var(--accent-dark);border-color:var(--accent-dark);transform:translate(-2px,-2px);box-shadow:var(--shadow)}@media(prefers-color-scheme:dark){.btn{color:#18181b}}.btn.ghost{background:transparent;color:var(--accent);border:2px solid var(--accent)}.btn.ghost:hover{background:var(--accent-soft)}.btn[data-state=copied]{background:var(--ok);border-color:var(--ok);color:#fff}.btn[data-state=error]{background:var(--bad);border-color:var(--bad);color:#fff}@media(prefers-color-scheme:dark){.btn[data-state=copied],.btn[data-state=error]{color:#18181b}}.btn .keep-case{text-transform:none;letter-spacing:normal}@media(prefers-reduced-motion:reduce){.btn,.guide-card{transition:none}.btn:hover,.guide-card:hover{transform:none}}.page-head{padding:3rem 0 2rem;background:linear-gradient(180deg,var(--bg-deep),var(--bg))}.page-head .site-name{font-size:.78rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--accent)}h1{margin-top:1rem;font-size:clamp(1.8rem,5vw,2.7rem);font-family:var(--serif);line-height:1.18;letter-spacing:-.01em;color:var(--ink);font-weight:700}.page-head .sub{margin-top:1rem;max-width:36rem;font-size:1.04rem}.stamp{display:inline-flex;align-items:center;gap:.5rem;margin-top:1.3rem;font-size:.82rem;font-weight:600;color:var(--ok);background:var(--ok-soft);border:1px solid var(--ok);padding:.35rem 1rem}.stamp:before{content:"✓";font-weight:800}main.shell,article.shell{padding-top:.5rem;padding-bottom:3rem}.block{padding:2rem 0}.block+.block{border-top:1px solid var(--line)}h2{font-size:clamp(1.3rem,3.5vw,1.7rem);letter-spacing:-.005em;font-family:var(--serif);font-weight:700;color:var(--ink);line-height:1.25}h3{font-size:1.05rem;color:var(--ink)}.block>p,.block>div>p{margin-top:.9rem}.lead-answer{margin-top:1rem;border-left:4px solid var(--accent);background:var(--bg-deep);padding:1.1rem 1.3rem;font-size:1.02rem;color:var(--ink);font-family:var(--serif)}.code-panel{margin:1.8rem auto 0;max-width:26rem;background:var(--bg-raise);border:2px solid var(--ink);padding:1.6rem;box-shadow:var(--shadow);text-align:center}.code-panel .k{font-size:.7rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-muted)}.code-panel .v{margin-top:.45rem;font-size:2.4rem;font-weight:800;color:var(--ink);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.03em}.code-panel .cta-row{margin-top:1.1rem;display:flex;gap:.7rem;justify-content:center;flex-wrap:wrap}.code-panel .note{margin-top:.9rem;font-size:.82rem;color:var(--ink-muted)}.walk{margin-top:1.6rem;list-style:none;display:grid;gap:0;counter-reset:w}.walk li{position:relative;padding:0 0 1.8rem 3.2rem;counter-increment:w}.walk li:before{content:counter(w);position:absolute;left:0;top:0;width:2.1rem;height:2.1rem;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:700;font-size:1rem}@media(prefers-color-scheme:dark){.walk li:before{color:#18181b}}.walk li:not(:last-child):after{content:"";position:absolute;left:1rem;top:2.5rem;bottom:.3rem;width:2px;background:var(--line-accent)}.walk p{margin-top:.35rem;font-size:.95rem}.fix-list{margin-top:1.5rem;display:grid;gap:.9rem}.fix{background:var(--bg-raise);border:1px solid var(--line);border-left:4px solid var(--warm);padding:1.15rem 1.3rem;box-shadow:var(--shadow)}.fix .symptom{font-weight:700;color:var(--ink);font-size:.97rem;display:flex;gap:.6rem;align-items:baseline}.fix .symptom:before{content:"▸";color:var(--warm);flex:none}.fix .remedy{margin-top:.4rem;font-size:.92rem}.fix .remedy b{color:var(--ink)}.prov{margin-top:1.4rem;background:var(--warm-soft);border:1px solid var(--warm);padding:1.2rem 1.4rem;font-size:.95rem}.prov .who{font-weight:700;color:var(--ink);margin-bottom:.4rem}.qa{margin-top:1.4rem}.qa details{border-bottom:1px solid var(--line);padding:1rem .2rem}.qa summary{cursor:pointer;list-style:none;font-weight:650;color:var(--ink);display:flex;justify-content:space-between;gap:1rem;font-size:1rem}.qa summary::-webkit-details-marker{display:none}.qa summary:after{content:"+";color:var(--accent);font-weight:400;font-size:1.3rem;line-height:1;transition:transform .2s}.qa details[open] summary:after{transform:rotate(45deg)}.qa details p{margin-top:.7rem;font-size:.94rem}.guide-cards{margin-top:1.5rem;display:grid;gap:.9rem}@media(min-width:640px){.guide-cards{grid-template-columns:1fr 1fr 1fr}}.guide-card{display:block;text-decoration:none;background:var(--bg-raise);border:1px solid var(--line);border-top:3px solid var(--accent);padding:1.2rem 1.3rem;box-shadow:var(--shadow);transition:transform .2s,border-color .2s}.guide-card:hover{transform:translate(-2px,-2px);border-color:var(--accent)}.guide-card .t{font-weight:700;color:var(--ink);font-size:.98rem}.guide-card .d{margin-top:.4rem;font-size:.86rem;color:var(--ink-body)}.guide-card .go{margin-top:.7rem;font-size:.82rem;font-weight:700;color:var(--accent)}.final{margin-top:1rem;text-align:center;background:var(--bg-deep);border:2px solid var(--ink);padding:2.2rem 1.5rem}.final h2{font-size:1.4rem}.final p{margin-top:.6rem}.final .cta-row{margin-top:1.3rem;display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}footer{border-top:1px solid var(--line);padding:2.5rem 0 2rem;font-size:.84rem;color:var(--ink-muted);text-align:center}footer p+p{margin-top:.8rem}footer .fine{font-size:.76rem;max-width:38rem;margin-left:auto;margin-right:auto}footer nav{margin-top:1rem;display:flex;gap:1.2rem;justify-content:center;flex-wrap:wrap}footer nav a{color:var(--ink-muted);text-decoration:none}footer nav a:hover{color:var(--ink)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}