/* MatterHub v2 — dark-first, glass, tech look. Light mode via [data-theme=light]. */
:root{--bg:#0B0F17;--bg2:#0f1522;--fg:#E6E9F2;--muted:#A3ABBD;--surface:rgba(255,255,255,.05);--surface2:rgba(255,255,255,.07);--line:rgba(255,255,255,.08);--line2:rgba(255,255,255,.14);
--violet:#7B4BFF;--cyan:#00CAFF;--link:#8FB4FF;--glow:0 0 0 1px rgba(123,75,255,.35),0 10px 40px -10px rgba(0,202,255,.35);--hdr:rgba(11,15,23,.6);--input:rgba(255,255,255,.06);
--imgbg:radial-gradient(120% 90% at 30% 10%,rgba(123,75,255,.18),transparent 60%),radial-gradient(120% 90% at 80% 100%,rgba(0,202,255,.14),transparent 60%),rgba(255,255,255,.03);
--grad:linear-gradient(92deg,#7B4BFF 0%,#00CAFF 100%);--r:16px;color-scheme:dark}
[data-theme=light]{--bg:#F5F7FB;--bg2:#ffffff;--fg:#0E1424;--muted:#4B5568;--surface:rgba(255,255,255,.85);--surface2:#fff;--line:rgba(14,20,36,.10);--line2:rgba(14,20,36,.18);
--link:#3A3FD0;--glow:0 0 0 1px rgba(123,75,255,.25),0 12px 30px -12px rgba(14,20,36,.25);--hdr:rgba(245,247,251,.72);--input:#fff;
--grad:linear-gradient(92deg,#5B2EE0 0%,#007FA8 100%);--imgbg:radial-gradient(120% 90% at 30% 10%,rgba(123,75,255,.10),transparent 60%),radial-gradient(120% 90% at 80% 100%,rgba(0,202,255,.10),transparent 60%),#fff;color-scheme:light}
*{box-sizing:border-box}
html{background:var(--bg)}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;background:var(--bg);color:var(--fg);line-height:1.5;-webkit-font-smoothing:antialiased;
background-image:radial-gradient(900px 500px at 10% -10%,rgba(123,75,255,.16),transparent 60%),radial-gradient(800px 500px at 100% 0%,rgba(0,202,255,.10),transparent 60%);background-repeat:no-repeat}
a{color:var(--link)}
.skip{position:absolute;left:-9999px}.skip:focus{left:8px;top:8px;background:var(--bg2);color:var(--fg);padding:8px 12px;z-index:50;border-radius:8px}
header{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 24px;background:var(--hdr);
backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.logo{font-weight:800;font-size:1.2em;letter-spacing:-.02em;color:var(--fg)!important;text-decoration:none}.logo b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
header nav{display:flex;align-items:center;flex-wrap:wrap;gap:2px}
header nav a{display:inline-block;padding:8px 10px;min-height:36px;border-radius:10px;color:var(--muted);text-decoration:none;font-size:.92em}
header nav a:hover{color:var(--fg);background:var(--surface2)}
header button,.iconbtn{min-height:36px;min-width:36px;margin-left:4px;padding:6px 10px;border-radius:10px;border:1px solid var(--line2);background:var(--surface);color:var(--fg);font:inherit;font-weight:600;cursor:pointer}
main{max-width:1200px;margin:auto;padding:24px}
footer{text-align:center;font-size:.85em;color:var(--muted);padding:32px 20px;border-top:1px solid var(--line);margin-top:40px}
footer a{color:var(--link)}
/* hero */
.hero{text-align:center;padding:40px 0 18px}
.eyebrow{display:inline-block;margin:0 0 12px;padding:4px 12px;border:1px solid var(--line2);border-radius:999px;font-size:.78em;letter-spacing:.06em;color:var(--muted);background:var(--surface)}
h1{letter-spacing:-.025em;line-height:1.1;min-height:1.1em}
.grad{font-size:clamp(2rem,5vw,3.4rem);margin:0 0 12px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{max-width:640px;margin:0 auto 22px;color:var(--muted);font-size:1.08em}
.search{position:relative;max-width:720px;margin:0 auto 12px}
.search .sicon{position:absolute;left:18px;top:50%;transform:translateY(-50%);font-size:1.4em;color:var(--muted)}
.search input{height:60px;padding:0 20px 0 52px;font-size:1.1em;border-radius:16px;border:1px solid var(--line2);background:var(--input);box-shadow:0 10px 40px -18px rgba(123,75,255,.6)}
.aff-note{font-size:.85em;color:var(--muted);margin:6px 0 0}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line2);border-radius:12px;font:inherit;color:var(--fg);background:var(--input)}
select option{background:var(--bg2);color:var(--fg)}
.filters{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:22px 0 10px}@media(max-width:900px){.filters{grid-template-columns:1fr 1fr}}
#count{min-height:1.4em;color:var(--muted);font-size:.85em}
.catnav{font-size:.85em;color:var(--muted);text-align:center;margin-top:10px}
/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;min-height:80vh}
.card{position:relative;display:flex;flex-direction:column;gap:8px;padding:14px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);min-height:360px;color:inherit;text-decoration:none;
transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover,.card:focus-within{transform:translateY(-3px);box-shadow:var(--glow);border-color:rgba(123,75,255,.45)}
a.card{min-height:0}
.card img{width:100%;height:170px;object-fit:contain;border-radius:12px;background:var(--imgbg);padding:10px}
.card h2.h3,.card h3{margin:0;font-size:1.02em;line-height:1.3}.plink{color:var(--fg);text-decoration:none}.plink:hover{text-decoration:underline}
.brand{color:var(--muted);font-size:.8em;text-transform:uppercase;letter-spacing:.06em}
.muted{color:var(--muted)}.small{font-size:.82em}
.badge{align-self:flex-start;background:rgba(255,184,0,.15);color:#FFD27A;border:1px solid #FFB800;border-radius:999px;padding:1px 8px;font-size:.72em;font-weight:700;text-transform:uppercase}
[data-theme=light] .badge{color:#7a5200}
/* pills */
.tags{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.tags .tl{font-size:.75em;color:var(--muted);margin-right:2px}
.tags span:not(.tl):not(.muted),.tags a{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.76em;font-weight:600;line-height:18px;text-decoration:none;
background:var(--tb,#2a2f39);color:var(--tc,#CBD5E1);border:1px solid var(--bc,#94A3B8)}
[data-theme=light] .tags span:not(.tl):not(.muted),[data-theme=light] .tags a{background:var(--tb,#eef0f4);color:var(--tc,#374151)}
.tags a{transition:box-shadow .15s ease}.tags a:hover{box-shadow:0 0 0 1px var(--bc,#94A3B8),0 0 10px -2px var(--bc,#94A3B8);text-decoration:underline;text-underline-offset:2px}
.compat{font-size:.9em;color:var(--muted)}
/* buy */
.buy{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.buy a{flex:1 1 45%;text-align:center;padding:8px;border-radius:12px;color:#fff;text-decoration:none;font-size:.82em;font-weight:600;transition:filter .15s}
.buy a:hover{filter:brightness(1.1)}
.s-Amazon{background:#FFB84D;color:#111!important}.s-Mercado-Libre{background:#2d3277}.s-AliExpress{background:#c0261b}.s-Temu{background:#c25400}
.mfr{display:inline-block;padding:8px 0;font-size:.85em}
.more{display:block;margin:24px auto;padding:12px 26px;border:1px solid var(--line2);border-radius:12px;background:var(--surface2);color:var(--fg);font:inherit;font-weight:600;cursor:pointer}
/* content pages */
.prose{max-width:820px;margin:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.page,.prose{overflow-wrap:anywhere;word-break:normal}.page a,.sources a{overflow-wrap:anywhere}
.page{max-width:960px}
.crumbs{font-size:.85em;margin-bottom:12px;color:var(--muted)}
.crumbs a,.sources a.src,.catnav a,nav[aria-label="Otras categorías"] a{display:inline-block;min-height:24px;padding:4px 0;line-height:16px}
.product .brand{margin:0}
.product h1{font-size:clamp(1.6rem,4vw,2.4rem);margin:.2em 0 .4em}
.product img.pimg{display:block;width:100%;max-width:520px;height:auto;max-height:340px;object-fit:contain;margin:8px auto 16px;border-radius:var(--r);background:var(--imgbg);padding:16px}
.product .buy a{flex:0 1 180px}
.specs{border-collapse:collapse;width:100%}.specs th,.specs td{border-bottom:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}.specs th{width:38%;color:var(--muted);font-weight:600}
.pc{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:600px){.pc{grid-template-columns:1fr}}
details{background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin:8px 0}summary{cursor:pointer;font-weight:600}
.sources li{margin:2px 0}
label{display:block;font-weight:600;margin-bottom:4px}
.hp{position:absolute;left:-9999px}
.btnlink{display:inline-block;padding:10px 0}
[hidden]{display:none!important}
/* focus + motion */
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;box-shadow:0 0 0 4px rgba(0,202,255,.25),0 0 18px rgba(123,75,255,.55);border-radius:8px}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}.card:hover,.card:focus-within{transform:none}}
@media(max-width:600px){header{padding:6px 12px;gap:4px}header nav{flex-wrap:nowrap;overflow-x:auto;width:100%;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent)}header nav::-webkit-scrollbar{display:none}header nav a{white-space:nowrap;font-size:.85em;padding:6px 8px}header button,.iconbtn{flex:none}.catnav{font-size:.8em}main{padding:16px}.hero{padding:22px 0 8px}.search input{height:54px}.prose{padding:18px}}
/* Tag colors: brand 15% bg over card, 100% border, text tint >=4.5:1 (computed per theme by _internal tooling). Unknown -> neutral gray. */
:root .tags [data-tag="matter"]{--tb:#2d2c43;--tc:#a78bfa;--bc:#A78BFA}
[data-theme=light] .tags [data-tag="matter"]{--tb:#f1edfe;--tc:#6d5aa2}
:root .tags [data-tag="thread"]{--tb:#21253e;--tc:#8888e1;--bc:#5B5BD6}
[data-theme=light] .tags [data-tag="thread"]{--tb:#e5e5f8;--tc:#5454c6}
:root .tags [data-tag="zigbee"]{--tb:#371827;--tc:#f25680;--bc:#EB0443}
[data-theme=light] .tags [data-tag="zigbee"]{--tb:#fbd8e2;--tc:#c20337}
:root .tags [data-tag="zwave"]{--tb:#182732;--tc:#5f9aae;--bc:#1B6E8C}
[data-theme=light] .tags [data-tag="zwave"]{--tb:#dce8ed;--tc:#1a6b88}
:root .tags [data-tag="wifi"]{--tb:#192641;--tc:#618ef0;--bc:#2563EB}
[data-theme=light] .tags [data-tag="wifi"]{--tb:#dde7fb;--tc:#2159d4}
:root .tags [data-tag="bluetooth"]{--tb:#142a43;--tc:#2d98fd;--bc:#0082FC}
[data-theme=light] .tags [data-tag="bluetooth"]{--tb:#d7ebfe;--tc:#0062bd}
:root .tags [data-tag="ethernet"]{--tb:#2b2f38;--tc:#9ca3af;--bc:#9CA3AF}
[data-theme=light] .tags [data-tag="ethernet"]{--tb:#eff0f2;--tc:#656a72}
:root .tags [data-tag="local"],:root .tags [data-tag="localcontrol"],:root .tags [data-tag="controllocal"]{--tb:#19342c;--tc:#22c55e;--bc:#22C55E}
[data-theme=light] .tags [data-tag="local"],[data-theme=light] .tags [data-tag="localcontrol"],[data-theme=light] .tags [data-tag="controllocal"]{--tb:#ddf5e6;--tc:#147638}
:root .tags [data-tag="tuya"],:root .tags [data-tag="smartlife"],:root .tags [data-tag="tuyasmartlife"]{--tb:#3a221d;--tc:#ff5f20;--bc:#FF4800}
[data-theme=light] .tags [data-tag="tuya"],[data-theme=light] .tags [data-tag="smartlife"],[data-theme=light] .tags [data-tag="tuyasmartlife"]{--tb:#fee3d8;--tc:#b93400}
:root .tags [data-tag="homeassistant"]{--tb:#173342;--tc:#18bcf2;--bc:#18BCF2}
[data-theme=light] .tags [data-tag="homeassistant"]{--tb:#dbf4fd;--tc:#0e7191}
:root .tags [data-tag="smartthings"]{--tb:#171d35;--tc:#7e89cb;--bc:#1428A0}
[data-theme=light] .tags [data-tag="smartthings"]{--tb:#dadef0;--tc:#1428a0}
:root .tags [data-tag="amazonalexa"],:root .tags [data-tag="alexa"]{--tb:#143544;--tc:#00caff;--bc:#00CAFF}
[data-theme=light] .tags [data-tag="amazonalexa"],[data-theme=light] .tags [data-tag="alexa"]{--tb:#d7f6fe;--tc:#006f8c}
:root .tags [data-tag="googlehome"]{--tb:#1c302a;--tc:#3eac5c;--bc:#34A853}
[data-theme=light] .tags [data-tag="googlehome"]{--tb:#dff1e5;--tc:#24763a}
:root .tags [data-tag="applehomekit"],:root .tags [data-tag="applehome"]{--tb:#3a331d;--tc:#ffb800;--bc:#FFB800}
[data-theme=light] .tags [data-tag="applehomekit"],[data-theme=light] .tags [data-tag="applehome"]{--tb:#fef3d8;--tc:#8c6500}

/* v2.1 */
[data-theme=light] :focus-visible{outline-color:#3A3FD0;box-shadow:0 0 0 4px rgba(58,63,208,.22)}
:root .tags [data-tag="smartthings"]{--bc:#5468D4}
[data-theme=light] .tags [data-tag="smartthings"]{--bc:#1428A0}
/* image stage: light rounded tile so white-background photos sit cleanly in dark mode */
.card img,.product img.pimg{background:linear-gradient(180deg,#ffffff 0%,#eef1f7 100%);box-shadow:inset 0 0 0 1px rgba(14,20,36,.06),0 6px 20px -12px rgba(0,0,0,.6)}
/* header: actions pinned next to logo */
.brandbar{display:flex;align-items:center;gap:8px;flex:1 1 auto}
.hdr-actions{display:flex;align-items:center;gap:6px;margin-left:auto}
header{flex-wrap:nowrap}
header nav{order:2}.brandbar{order:1}
@media(min-width:861px){header .brandbar{display:contents}header .logo{order:1;margin-right:auto}header nav{order:2}.hdr-actions{order:3;margin-left:8px}}
@media(max-width:860px){header{flex-wrap:wrap}.brandbar{width:100%}header nav{order:3;width:100%}}
.card .imglink{display:block;border-radius:12px}
.gridh{max-width:1200px;margin:28px auto 12px}.hublist{padding-left:1.2em}.hublist li{margin:8px 0}.hublist a,.fnav a,.taglinks a{display:inline-block;min-height:24px;padding:4px 0}
.taglinks{font-size:.9em;color:var(--muted)}
.pc{margin:18px 0}.pc>div{border-radius:12px;padding:12px 16px;border:1px solid}.pc h2{margin:0 0 6px;font-size:1.1rem}.pc ul{margin:0;padding:0;list-style:none}.pc li{padding:4px 0 4px 26px;position:relative}.pc li::before{position:absolute;left:0;font-weight:700}
.pc .pro{background:#052e16;border-color:#166534;color:#dcfce7}.pc .pro h2{color:#4ade80}.pc .pro li::before{content:"✓";color:#16a34a}
.pc .con{background:#350a0a;border-color:#991b1b;color:#fee2e2}.pc .con h2{color:#f87171}.pc .con li::before{content:"✗";color:#dc2626}
[data-theme=light] .pc .pro{background:#ecfdf3;border-color:#86efac;color:#14532d}[data-theme=light] .pc .pro h2{color:#15803d}[data-theme=light] .pc .con{background:#fef2f2;border-color:#fca5a5;color:#7f1d1d}[data-theme=light] .pc .con h2{color:#b91c1c}
.rel{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin:12px 0 20px}.rcard{display:flex;flex-direction:column;gap:4px;border:1px solid #8884;border-radius:12px;padding:10px;text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s}.rcard:hover{transform:translateY(-2px);box-shadow:0 4px 14px #0002}.rcard img{width:100%;height:120px;object-fit:contain;background:#fff;border-radius:8px}.rb{font-size:.75rem;opacity:.7;text-transform:uppercase;letter-spacing:.03em}.rn{font-weight:600;line-height:1.25}.rx{font-size:.8rem;opacity:.75}