html,body{margin:0}body{min-height:100vh}
[hidden]{display:none!important}

/* Layout: identidad Termo Calderas (negro + rojo del logotipo) sobre lámina clara; bandas grafito a todo lo ancho; datos técnicos en mono como en una placa de caldera. */
:root{
  --bg:#F3F4F5;
  --surface:#FFFFFF;
  --ink:#111315;          /* negro del logotipo */
  --muted:#575D63;
  --line:#D9DDE0;
  --band:#2A2F35;         /* grafito medio, bandas oscuras */
  --band-ink:#ECEEF0;
  --red:#D7141A;          /* rojo del logotipo, ajustado para contraste */
  --red-ink:#FFFFFF;
  --logo-ink:#111315;
  --gas-cool:#3E7CA6;
  --gas-mid:#E8A33D;
  --ok:#2E7D4F;
  --font-display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --font-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --maxw:1200px;
  --r:4px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0F1113;--surface:#171A1D;--ink:#E9ECEE;--muted:#9AA2A9;--line:#2A2F34;
  --band:#23282D;--band-ink:#EEF0F2;--red:#E5262C;--red-ink:#FFFFFF;--logo-ink:#E9ECEE;--gas-cool:#6FA6CC;--ok:#5DBB86;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0F1113;--surface:#171A1D;--ink:#E9ECEE;--muted:#9AA2A9;--line:#2A2F34;
  --band:#23282D;--band-ink:#EEF0F2;--red:#E5262C;--red-ink:#FFFFFF;--logo-ink:#E9ECEE;--gas-cool:#6FA6CC;--ok:#5DBB86;color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{display:block;max-width:100%}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.02;letter-spacing:.005em;margin:0;text-wrap:balance;text-transform:uppercase}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.eyebrow{font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:#FFFFFF;background:var(--red);padding:4px 9px;border-radius:3px;justify-self:start;width:fit-content;line-height:1.5}
.lead{font-size:1.125rem;color:var(--muted);max-width:62ch}
:focus-visible{outline:2px solid var(--red);outline-offset:2px}
.logo{--logo-k:var(--logo-ink);--logo-r:#E30613}
.on-band .logo,footer .logo{--logo-k:var(--band-ink);--logo-r:#FF2A2F}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;padding:13px 22px;border:2px solid transparent;border-radius:var(--r);cursor:pointer;line-height:1;transition:transform .12s, background .12s}
.btn:hover{transform:translateY(-1px)}
.btn-red{background:var(--red);color:var(--red-ink)}
.btn-line{border-color:currentColor;background:transparent;color:inherit}
.btn svg{width:18px;height:18px;flex:none}

/* Barra superior y encabezado */
.topbar{background:var(--band);color:var(--band-ink);font-size:13px}
.topbar .wrap{display:flex;gap:20px;justify-content:space-between;align-items:center;padding-block:7px;flex-wrap:wrap}
.topbar a{text-decoration:none}
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 93%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:10px;position:relative}
.brand{display:block;text-decoration:none;line-height:0}
.brand svg{height:44px;width:auto}
nav.main{display:flex;gap:2px;align-items:center}
nav.main a{font-family:var(--font-display);font-weight:600;font-size:1.05rem;letter-spacing:.05em;text-transform:uppercase;text-decoration:none;padding:8px 10px;border-radius:var(--r);color:var(--muted)}
nav.main a:hover,nav.main a[aria-current="page"]{color:var(--ink)}
nav.main a[aria-current="page"]{box-shadow:inset 0 -2px 0 var(--red)}
nav.main .btn{margin-left:8px;padding:10px 16px;color:var(--red-ink)}
nav.main .btn[aria-current]{color:var(--red-ink);box-shadow:none}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:var(--r);padding:8px 12px;color:var(--ink);font-family:var(--font-display);font-weight:700;letter-spacing:.08em;font-size:1rem;cursor:pointer}
@media (max-width:1020px){
  .menu-btn{display:block}
  nav.main{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;background:var(--bg);border-bottom:1px solid var(--line);padding:8px max(16px,env(safe-area-inset-right,0px)) 16px max(16px,env(safe-area-inset-left,0px))}
  nav.main.open{display:flex}
  nav.main a{padding:12px 4px;border-bottom:1px solid var(--line)}
  nav.main .btn{margin:12px 0 0;justify-content:center}
}

/* Secciones */
section.band{padding-block:clamp(56px,8vw,104px)}
section.band.tight{padding-block:clamp(36px,5vw,60px)}
.band.dark{background:var(--band);color:var(--band-ink)}
.band.dark .lead{color:color-mix(in srgb,var(--band-ink) 72%,transparent)}
.band.surface{background:var(--surface);border-block:1px solid var(--line)}
.sec-head{display:grid;gap:14px;margin-bottom:40px;max-width:780px}
.sec-head h2{font-size:clamp(2.2rem,4.6vw,3.6rem)}
.page[hidden]{display:none!important}

/* Hero con foto real */
.hero{position:relative;background:var(--band);color:var(--band-ink);overflow:hidden}
.hero .photo{position:absolute;inset:0 0 0 38%}
.hero .slide{position:absolute;inset:0;background:center/cover no-repeat;opacity:0;transition:opacity 1.2s ease}
.hero .slide.on{opacity:1}
.hero .photo::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--band) 0%,color-mix(in srgb,var(--band) 55%,transparent) 28%,transparent 60%)}
.hero .wrap{position:relative;padding-block:clamp(56px,9vw,128px)}
.hero .copy{max-width:600px;display:grid;gap:20px}
.hero h1{font-size:clamp(3rem,6.8vw,5.8rem);font-weight:800;line-height:.92}
.hero h1 em{font-style:normal;color:var(--red)}
.hero .lead{color:color-mix(in srgb,var(--band-ink) 80%,transparent)}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero .note{font-size:13px;color:color-mix(in srgb,var(--band-ink) 65%,transparent)}
.hero .dots{position:absolute;right:max(16px,env(safe-area-inset-right,0px));bottom:44px;display:flex;gap:8px;z-index:2}
.hero .dots button{width:28px;height:6px;border-radius:3px;border:0;padding:0;background:rgba(255,255,255,.45);cursor:pointer}
.hero .dots button[aria-current="true"]{background:var(--red)}
.hero .cap{z-index:2;position:absolute;right:max(16px,env(safe-area-inset-right,0px));bottom:14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:rgba(0,0,0,.55);padding:4px 8px;border-radius:3px}
@media (max-width:860px){
  .hero .photo{position:relative;inset:auto;height:56vw;max-height:420px}
  .hero .photo::after{background:linear-gradient(0deg,var(--band) 0%,transparent 45%)}
  .hero .cap{top:12px;bottom:auto}
  .hero .dots{top:calc(min(56vw,420px) - 22px);bottom:auto}
  .hero .wrap{padding-block:8px 48px}
}

/* Clientes */
.clients{display:flex;flex-wrap:wrap;gap:8px 30px;align-items:baseline}
.clients span{font-family:var(--font-display);font-weight:700;font-size:1.3rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.clients .eyebrow{font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.12em;color:#FFFFFF;line-height:1.5}
.clients .lbl{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;font-weight:500;color:#FFFFFF;background:var(--red);padding:4px 9px;border-radius:3px;flex-basis:auto;margin-right:100%}

/* Cifras */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid color-mix(in srgb,var(--band-ink) 22%,transparent)}
.stat{padding:26px 22px 4px 0;display:grid;gap:6px;align-content:start}
.stat + .stat{padding-left:22px;border-left:1px solid color-mix(in srgb,var(--band-ink) 22%,transparent)}
.stat b{font-family:var(--font-display);font-size:clamp(2.6rem,5vw,4rem);font-weight:800;line-height:1;color:var(--red)}
.stat span{font-size:14px;color:color-mix(in srgb,var(--band-ink) 78%,transparent)}
@media (max-width:760px){.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.stat:nth-child(3){padding-left:0;border-left:0}.stat:nth-child(n+3){border-top:1px solid color-mix(in srgb,var(--band-ink) 22%,transparent)}}

/* Corte animado */
.how{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(24px,4vw,56px);align-items:center}
.boiler{background:var(--band);border-radius:6px;padding:18px;color:var(--band-ink)}
.boiler svg{display:block;width:100%;height:auto}
.boiler .cap{display:flex;gap:14px;flex-wrap:wrap;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:color-mix(in srgb,var(--band-ink) 75%,transparent);margin-top:10px}
.legend{display:inline-flex;align-items:center;gap:6px}.legend i{width:14px;height:4px;border-radius:2px;display:inline-block}
.gas{fill:none;stroke-width:5;stroke-linecap:round;stroke-dasharray:10 14;animation:flow 1.6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-48}}
.flick{animation:flick .18s ease-in-out infinite alternate;transform-origin:70px 196px}
@keyframes flick{from{transform:scaleX(.94)}to{transform:scaleX(1.05)}}
@media (max-width:860px){.how{grid-template-columns:1fr}}

/* Servicios con foto */
.svc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.svc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:grid;grid-template-rows:auto 1fr;text-decoration:none}
.svc .ph{aspect-ratio:16/10;background:var(--line) center/cover no-repeat;max-width:100%}
.svc .bd{padding:20px 22px 22px;display:grid;gap:10px;align-content:start}
.svc h3{font-size:1.6rem}
.svc p{color:var(--muted);font-size:15px}
.svc .more{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--red);margin-top:2px}
a.svc:hover h3{color:var(--red)}
@media (max-width:900px){.svc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.svc-grid{grid-template-columns:1fr}}

/* Placas de producto */
.plates{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.plate{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);display:grid;grid-template-rows:auto auto 1fr auto;overflow:hidden}
.plate .ph{background:#fff;aspect-ratio:5/4;display:grid;place-items:center;padding:10px;position:relative}
.plate .ph img{max-height:100%;width:auto;object-fit:contain}
.plate .ph button{position:absolute;right:8px;bottom:8px;font:500 11px var(--font-mono);letter-spacing:.06em;text-transform:uppercase;border:1px solid #c9ced2;background:#fff;color:#111315;border-radius:999px;padding:4px 10px;cursor:pointer}
.plate-top{display:flex;justify-content:space-between;align-items:baseline;gap:10px;padding:12px 18px;background:var(--band);color:var(--band-ink)}
.plate-top h3{font-size:1.75rem}
.plate-top .mono{font-size:11px;letter-spacing:.12em;text-transform:uppercase;opacity:.75}
.plate-body{padding:16px 18px;display:grid;gap:12px;align-content:start}
.plate-body p{color:var(--muted);font-size:15px}
.spec{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-family:var(--font-mono);font-size:12.5px;margin:0}
.spec dt{color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.spec dd{margin:0}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;padding:3px 8px;border:1px solid var(--line);border-radius:999px;color:var(--muted)}
.chip.v{border-color:var(--red);background:var(--red);color:#FFFFFF}
.chip.hw{border-color:color-mix(in srgb,var(--gas-cool) 70%,transparent);color:var(--gas-cool)}
.plate-foot{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px;padding:12px 18px;border-top:1px dashed var(--line);font-family:var(--font-mono);font-size:12px}
.plate-foot a,.plate-foot button{text-decoration:none;color:var(--red);font:500 12px var(--font-mono);background:none;border:0;padding:0;cursor:pointer}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.filters button{font-family:var(--font-display);font-weight:600;font-size:1rem;letter-spacing:.05em;text-transform:uppercase;background:transparent;border:1px solid var(--line);color:var(--muted);padding:8px 14px;border-radius:var(--r);cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}

/* Selector de capacidades */
.picker{display:flex;flex-wrap:wrap;gap:16px;align-items:end;margin-bottom:20px}
.picker label{display:grid;gap:6px;font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.picker select{font:500 1.05rem var(--font-mono);padding:9px 12px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);color:var(--ink);min-width:180px}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:14.5px}
th,td{text-align:left;padding:11px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:500}
td.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right}
th.num{text-align:right}
tr:last-child td{border-bottom:0}
tr.hl td{background:color-mix(in srgb,var(--red) 9%,transparent)}
.foot-note{font-size:12.5px;color:var(--muted);margin-top:10px;max-width:90ch}

/* Calculadora */
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border:1px solid color-mix(in srgb,var(--band-ink) 25%,transparent);border-radius:6px;overflow:hidden}
.calc .in{padding:26px;display:grid;gap:16px;align-content:start}
.calc .out{padding:26px;background:color-mix(in srgb,var(--band-ink) 7%,transparent);display:grid;gap:14px;align-content:start}
.calc label{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;display:grid;gap:8px}
.calc input,.calc select{font:500 1.3rem var(--font-mono);padding:10px 12px;border-radius:var(--r);border:1px solid color-mix(in srgb,var(--band-ink) 30%,transparent);background:color-mix(in srgb,var(--band-ink) 6%,transparent);color:var(--band-ink);width:100%}
.calc select option{color:#111315}
.readout{display:flex;justify-content:space-between;align-items:baseline;gap:12px;border-bottom:1px solid color-mix(in srgb,var(--band-ink) 18%,transparent);padding-bottom:10px}
.readout span{font-size:14px;color:color-mix(in srgb,var(--band-ink) 75%,transparent)}
.readout b{font-family:var(--font-display);font-size:2rem;font-weight:700;color:var(--band-ink)}
.readout.main b{color:var(--red);font-size:2.8rem}
.fits{display:flex;flex-wrap:wrap;gap:6px}
.fits .chip{color:var(--band-ink);border-color:color-mix(in srgb,var(--band-ink) 35%,transparent)}
.calc small{font-size:12.5px;color:color-mix(in srgb,var(--band-ink) 65%,transparent)}
@media (max-width:760px){.calc{grid-template-columns:1fr}}

/* Casos */
.cases{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.case{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:grid;grid-template-rows:auto 1fr;text-decoration:none}
.case .ph{aspect-ratio:4/3;background:var(--line) center/cover no-repeat;max-width:100%}
.case .bd{padding:20px;display:grid;gap:12px;align-content:start}
.case .sector{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.case h3{font-size:1.75rem}
.case p{color:var(--muted);font-size:15px}
.case .kv{display:flex;flex-wrap:wrap;gap:6px}
.case .read{font-family:var(--font-mono);font-size:12.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--red)}
a.case:hover{border-color:var(--red)}
@media (max-width:900px){.cases{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.cases{grid-template-columns:1fr}}

/* Galería de obras */
.works{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.work{position:relative;margin:0;border-radius:var(--r);overflow:hidden;background:var(--line);aspect-ratio:1/1;max-width:100%}
.work img{width:100%;height:100%;object-fit:cover}
.work figcaption{position:absolute;inset:auto 0 0 0;padding:28px 12px 10px;background:linear-gradient(0deg,rgba(0,0,0,.78),transparent);color:#fff;display:grid;gap:1px}
.work figcaption b{font-family:var(--font-display);font-size:1.15rem;letter-spacing:.03em;text-transform:uppercase;line-height:1.05}
.work figcaption span{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;opacity:.85}
@media (max-width:900px){.works{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:620px){.works{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* Blog */
.posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.post{background:var(--surface);padding:22px;display:grid;gap:10px;align-content:start;text-decoration:none;min-width:0}
.post .tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.post .tag.caso{color:#FFFFFF;background:var(--red);padding:2px 7px;border-radius:3px;justify-self:start}.post .tag.mto{color:var(--gas-cool)}.post .tag.ing{color:var(--ok)}.post .tag.neg{color:var(--muted)}
.post h3{font-family:var(--font-body);text-transform:none;font-weight:600;font-size:1.06rem;line-height:1.35;letter-spacing:0}
.post p{font-size:14px;color:var(--muted)}
a.post:hover h3{color:var(--red)}
@media (max-width:900px){.posts{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.posts{grid-template-columns:1fr}}

/* Genéricos */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,64px);align-items:start}
@media (max-width:820px){.split{grid-template-columns:1fr}}
.photo-frame{border-radius:6px;overflow:hidden;aspect-ratio:4/3;max-width:100%}
.photo-frame img{width:100%;height:100%;object-fit:cover}
.list{list-style:none;padding:0;margin:0;display:grid}
.list li{display:grid;grid-template-columns:28px 1fr;gap:10px;padding:13px 0;border-bottom:1px solid var(--line)}
.list li:first-child{border-top:1px solid var(--line)}
.list li svg{width:20px;height:20px;color:var(--red);margin-top:3px}
.band.dark .list li{border-color:color-mix(in srgb,var(--band-ink) 20%,transparent)}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;padding:0;margin:0}
.steps li{list-style:none;counter-increment:s;display:grid;gap:8px;align-content:start;border-top:3px solid var(--red);padding-top:16px}
.steps li::before{content:"PASO " counter(s);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--muted)}
.steps h4{font-size:1.4rem}
.steps p{font-size:14.5px;color:var(--muted)}
@media (max-width:820px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:480px){.steps{grid-template-columns:1fr}}
.phead{padding-block:clamp(40px,6vw,72px) clamp(28px,4vw,44px);border-bottom:1px solid var(--line)}
.phead h1{font-size:clamp(2.2rem,6vw,4.8rem);font-weight:800;margin-top:10px;hyphens:auto;overflow-wrap:break-word}
h1,h2{hyphens:auto;overflow-wrap:break-word}
.phead .lead{margin-top:16px}
.pm-band{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.pm-band img{height:44px;width:auto}
.pm-band p{max-width:70ch;color:color-mix(in srgb,var(--band-ink) 80%,transparent)}

/* Contacto */
form.quote{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
form.quote .full{grid-column:1/-1}
form.quote label{display:grid;gap:6px;font-size:13px;font-weight:600}
form.quote input,form.quote select,form.quote textarea{font:400 15px var(--font-body);padding:11px 12px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);color:var(--ink);width:100%}
form.quote textarea{min-height:120px;resize:vertical}
.form-ok{grid-column:1/-1;padding:14px 16px;border:1px solid var(--ok);border-radius:var(--r);color:var(--ok);font-size:14.5px}
@media (max-width:560px){form.quote{grid-template-columns:1fr}}
.contact-card{display:grid;gap:18px}
.cline{display:grid;gap:2px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.cline span{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.cline b{font-size:1.15rem;font-weight:600;user-select:all}
.cline a{text-decoration:none}
.notice{font-size:13.5px;color:var(--muted);border-left:3px solid var(--red);padding-left:12px}

.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(2rem,4.2vw,3.2rem);max-width:20ch}

footer.site{background:var(--band);color:var(--band-ink);padding-block:56px 32px;font-size:14px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
footer h4{font-size:1.15rem;letter-spacing:.06em;margin-bottom:12px}
footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
footer a{text-decoration:none;color:color-mix(in srgb,var(--band-ink) 78%,transparent)}
footer a:hover{color:var(--red)}
footer p,footer li{color:color-mix(in srgb,var(--band-ink) 72%,transparent)}
footer .brand svg{height:52px}
footer .legal{margin-top:40px;padding-top:18px;border-top:1px solid color-mix(in srgb,var(--band-ink) 18%,transparent);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-family:var(--font-mono);font-size:12px;color:color-mix(in srgb,var(--band-ink) 60%,transparent)}
@media (max-width:820px){footer .cols{grid-template-columns:1fr 1fr}}
@media (max-width:480px){footer .cols{grid-template-columns:1fr}}

/* Prueba de fondos: cada paleta fija todos los colores, sin importar el modo claro/oscuro del equipo */
:root[data-pal="grafito"]{--bg:#F3F4F5;--surface:#FFFFFF;--ink:#111315;--muted:#575D63;--line:#D9DDE0;--band:#2A2F35;--band-ink:#ECEEF0;--red:#D7141A;--red-ink:#FFFFFF;--logo-ink:#111315;--gas-cool:#3E7CA6;--ok:#2E7D4F;color-scheme:light}
:root[data-pal="negro"]{--bg:#FFFFFF;--surface:#F4F4F4;--ink:#0B0B0B;--muted:#4F5357;--line:#E1E3E5;--band:#0B0B0B;--band-ink:#FFFFFF;--red:#E0121A;--red-ink:#FFFFFF;--logo-ink:#0B0B0B;--gas-cool:#3E7CA6;--ok:#2E7D4F;color-scheme:light}
:root[data-pal="acero"]{--bg:#F1F4F6;--surface:#FFFFFF;--ink:#0F1A22;--muted:#51606B;--line:#D3DCE2;--band:#1E3A4F;--band-ink:#EAF1F5;--red:#D7141A;--red-ink:#FFFFFF;--logo-ink:#0F1A22;--gas-cool:#6FA6CC;--ok:#2E7D4F;color-scheme:light}
:root[data-pal="claro"]{--bg:#FFFFFF;--surface:#F5F6F7;--ink:#111315;--muted:#575D63;--line:#DDE0E3;--band:#E7EAED;--band-ink:#111315;--red:#D7141A;--red-ink:#FFFFFF;--logo-ink:#111315;--gas-cool:#2F6E98;--ok:#2E7D4F;color-scheme:light}
:root[data-pal="oscuro"]{--bg:#0F1113;--surface:#171A1D;--ink:#E9ECEE;--muted:#9AA2A9;--line:#2A2F34;--band:#23282D;--band-ink:#EEF0F2;--red:#E5262C;--red-ink:#FFFFFF;--logo-ink:#E9ECEE;--gas-cool:#6FA6CC;--ok:#5DBB86;color-scheme:dark}
:root[data-pal="claro"] .pm-band img{filter:invert(1)}
:root[data-pal="claro"] .hero .photo::after{background:linear-gradient(90deg,var(--band) 0%,color-mix(in srgb,var(--band) 80%,transparent) 30%,transparent 62%)}
.palbox{position:fixed;left:calc(14px + env(safe-area-inset-left,0px));bottom:calc(14px + env(safe-area-inset-bottom,0px));z-index:40;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 28px rgba(0,0,0,.22);padding:10px 12px;display:grid;gap:8px;max-width:calc(100vw - 28px)}
.palbox b{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:500}
.palbox .row{display:flex;gap:6px;flex-wrap:wrap}
.palbox button{display:flex;align-items:center;gap:6px;font:500 12.5px var(--font-body);padding:5px 9px 5px 5px;border:1px solid var(--line);border-radius:999px;background:var(--bg);color:var(--ink);cursor:pointer}
.palbox button[aria-pressed="true"]{border-color:var(--red);box-shadow:0 0 0 1px var(--red)}
.palbox i{width:22px;height:22px;border-radius:50%;display:inline-block;border:1px solid rgba(0,0,0,.15)}
.palbox .x{border:0;background:none;padding:0 2px;font-size:16px;color:var(--muted);justify-self:end}
@media (max-width:560px){.palbox{right:calc(14px + env(safe-area-inset-right,0px))}}