:root{
  --paper:#f5f6f4;--panel:#fff;--ink:#171a1f;--muted:#5b6270;--line:#d7dbd6;
  --accent:#0e6b62;--accent-ink:#0b5249;--amz:#f2b233;--bar:#20242b;--led:#7fe0cf;
  --w:72rem;--prose:70ch;--r:6px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent);text-underline-offset:.15em}
a:hover{color:var(--accent-ink)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
img{max-width:100%;height:auto}
h1,h2,h3{line-height:1.2;letter-spacing:-.02em;font-weight:700;margin:0 0 .5em}
h1{font-size:clamp(1.85rem,4.2vw,2.9rem)}
h2{font-size:clamp(1.35rem,2.6vw,1.9rem);margin-top:2.2em}
h3{font-size:1.15rem;margin-top:1.6em}
p,ul,ol{margin:0 0 1.1em}
ul,ol{padding-left:1.3em}
li{margin:.25em 0}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;background:#e9ebe8;padding:.05em .3em;border-radius:3px}

/* Layout */
.wrap{max-width:var(--w);margin:0 auto;padding:0 1.25rem}
main{padding:2rem 0 4rem}
.prose{max-width:var(--prose)}
.lead{font-size:1.2rem;color:#2d323a;max-width:var(--prose)}
.updated{color:var(--muted);font-size:.9rem;margin:0 0 1.5rem}

/* Header */
.site-head{background:var(--panel);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:3.75rem}
.logo{font-weight:800;font-size:1.25rem;letter-spacing:-.03em;color:var(--ink);text-decoration:none}
.logo b{color:var(--accent)}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:.25rem}
.nav a{display:block;padding:.55rem .7rem;color:var(--ink);text-decoration:none;border-radius:var(--r);font-size:.95rem}
.nav a:hover,.nav a[aria-current]{background:var(--paper);color:var(--accent-ink)}
.nav-btn{display:none;background:none;border:1px solid var(--line);border-radius:var(--r);padding:.45rem .7rem;font:inherit;color:var(--ink)}
@media(max-width:52rem){
  .nav-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:3.75rem;background:var(--panel);border-bottom:1px solid var(--line);z-index:10}
  .nav.open{display:block}
  .nav ul{flex-direction:column;padding:.5rem 1rem 1rem}
  .site-head{position:relative}
}

/* Breadcrumb */
.crumb{font-size:.88rem;color:var(--muted);margin:0 0 1.2rem}
.crumb ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.35rem}
.crumb li+li::before{content:"/";margin-right:.35rem;color:var(--line)}
.crumb a{color:var(--muted)}

/* Hero soundbar motif (home + pillars) */
.bar{position:relative;background:var(--bar);border-radius:14px;height:4.2rem;margin:1.5rem 0 2rem;overflow:hidden;
  background-image:radial-gradient(circle at 2px 2px,#3a3f47 1.1px,transparent 1.3px);background-size:7px 7px}
.bar::after{content:attr(data-led);position:absolute;right:1.4rem;top:50%;transform:translateY(-50%);
  font-family:ui-monospace,Menlo,monospace;font-size:.85rem;letter-spacing:.18em;color:var(--led);background:#0d1113;
  padding:.35rem .8rem;border-radius:3px;box-shadow:0 0 0 2px #14181c}
@media(max-width:40rem){.bar{height:3.2rem}.bar::after{font-size:.7rem;right:.8rem}}

/* Table of contents */
.toc{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:1rem 1.25rem;margin:1.5rem 0;max-width:var(--prose)}
.toc strong{display:block;margin-bottom:.4rem}
.toc ol{margin:0;padding-left:1.2em;columns:2;column-gap:2rem}
.toc li{break-inside:avoid;font-size:.95rem}
@media(max-width:40rem){.toc ol{columns:1}}

/* Product pick */
.pick{background:var(--panel);border:1px solid var(--line);border-left:5px solid var(--accent);border-radius:var(--r);padding:1.25rem 1.4rem;margin:1.5rem 0;max-width:var(--prose)}
.pick h3{margin-top:0}
.pick .who{color:var(--muted);margin:-.3rem 0 .8rem;font-size:.95rem}
.pick .pc{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:.8rem 0}
.pick .pc ul{margin:0;padding-left:1.1em;font-size:.95rem}
.pick .pc strong{display:block;margin-bottom:.2rem;font-size:.9rem}
@media(max-width:40rem){.pick .pc{grid-template-columns:1fr}}
.spec{color:var(--muted);font-size:.9rem;margin:0 0 .5rem}

/* Buttons */
.btn-amz{display:inline-block;background:var(--amz);color:var(--ink);font-weight:700;text-decoration:none;padding:.65rem 1.1rem;border-radius:var(--r);border:1px solid #c98f13;font-size:.98rem}
.btn-amz:hover{background:#eaa51b;color:var(--ink)}
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:600;text-decoration:none;padding:.65rem 1.1rem;border-radius:var(--r)}
.btn:hover{background:var(--accent-ink);color:#fff}
.actions{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin:.6rem 0}
.note{font-size:.85rem;color:var(--muted);border-left:3px solid var(--line);padding-left:.8rem;margin:1.2rem 0;max-width:var(--prose)}

/* Tables */
.tbl{overflow-x:auto;margin:1.5rem 0;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
table{border-collapse:collapse;width:100%;font-size:.95rem;min-width:36rem}
th,td{text-align:left;padding:.65rem .8rem;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--paper);font-weight:600;white-space:nowrap}
tr:last-child td{border-bottom:0}
td a.btn-amz{padding:.35rem .7rem;font-size:.85rem;white-space:nowrap}

/* Hub grids */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:1rem;list-style:none;padding:0;margin:1.5rem 0}
.grid li{margin:0}
.grid a{display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:1rem 1.1rem;color:var(--ink);text-decoration:none;height:100%}
.grid a:hover{border-color:var(--accent)}
.grid strong{display:block;color:var(--accent-ink);margin-bottom:.2rem}
.grid span{font-size:.9rem;color:var(--muted)}
.links{columns:3;column-gap:2rem;list-style:none;padding:0;margin:1rem 0 2rem}
.links li{break-inside:avoid;font-size:.95rem;margin:.2em 0}
@media(max-width:52rem){.links{columns:2}}
@media(max-width:36rem){.links{columns:1}}

/* FAQ */
details.faq{border-top:1px solid var(--line);padding:.6rem 0;max-width:var(--prose)}
details.faq:last-of-type{border-bottom:1px solid var(--line)}
details.faq summary{cursor:pointer;font-weight:600;padding:.3rem 0}
details.faq p{margin:.5rem 0 .3rem;color:#2d323a}

/* Section lists */
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;max-width:var(--prose)}
@media(max-width:40rem){.cols2{grid-template-columns:1fr}}
.verdict{background:#e6f2f0;border-radius:var(--r);padding:1rem 1.25rem;margin:1.5rem 0;max-width:var(--prose)}
.verdict p:last-child{margin:0}

/* Footer */
.site-foot{border-top:1px solid var(--line);background:var(--panel);padding:2rem 0;font-size:.9rem;color:var(--muted)}
.site-foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
.site-foot ul{list-style:none;padding:0;margin:0}
.site-foot a{color:var(--muted)}
@media(max-width:40rem){.site-foot .cols{grid-template-columns:1fr}}