/* Sigma Desarrollos Eléctricos: shared styles (tokens, header, buttons, CTA band, footer, mobile bar) */
@font-face{font-family:"Saira";src:url(../fonts/saira-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Saira";src:url(../fonts/saira-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Saira";src:url(../fonts/saira-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(../fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(../fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(../fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}

:root{
  --blue:#0A6EA8;
  --blue-deep:#085A8A;
  --hero-bg:#F7FAFC;
  --grid:#E3ECF2;
  --soft:#F5F8FB;
  --field:#C9D5DE;
  --tint:#D3EEF9;
  --cyan:#3FC1E8;
  --graphite:#26303A;
  --graphite-2:#1F262C;
  --ink:#2E363D;
  --body:#46515A;
  --muted:#5F6B75;
  --sky:#EAF5FB;
  --line:#E1E8EE;
  --white:#FFFFFF;
  --wa:#157A3C;
  --display:"Saira",system-ui,sans-serif;
  --text:"IBM Plex Sans",system-ui,sans-serif;
  --pad:20px;
  --sec:64px;
  --ease:cubic-bezier(.16,1,.3,1);
}
@media (min-width:768px){:root{--pad:40px;--sec:112px}}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;-webkit-tap-highlight-color:rgba(10,110,168,.12);font:400 16px/1.6 var(--text);color:var(--body);background:var(--white);-webkit-font-smoothing:antialiased}
::selection{background:var(--cyan);color:var(--ink)}
img{max-width:100%;display:block}
a{color:var(--blue);text-underline-offset:3px}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.on-dark :focus-visible{outline-color:var(--cyan)}
h1,h2,h3{overflow-wrap:break-word;font-family:var(--display);color:var(--ink);text-wrap:balance;margin:0;font-weight:700;letter-spacing:-.025em}
h2{font-size:clamp(36px,5.6vw,68px);line-height:1}
p{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 max(var(--pad),env(safe-area-inset-right)) 0 max(var(--pad),env(safe-area-inset-left))}
.sec{padding:var(--sec) 0}
.lead{font-size:17px;max-width:54ch}
@media (min-width:768px){.lead{font-size:19px}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 24px;border-radius:8px;font:600 15px/1 var(--text);text-decoration:none;border:2px solid transparent;transition:background-color .2s ease-out,color .2s ease-out,transform .15s ease-out}
.btn:active{transform:translateY(1px)}
.btn svg{width:20px;height:20px;flex:none;transition:transform .2s var(--ease)}
.btn:hover svg.arr{transform:translateX(3px)}
.btn-light{background:#fff;border:1px solid var(--field);color:var(--ink)}
.btn-light:hover{border-color:var(--blue);color:var(--blue)}
.btn-light .wa{color:#1DA851}
.btn-cyan{background:var(--cyan);color:#10181D}
.btn-cyan:hover{background:#74D4F0;color:#10181D}
.btn-outline-w{border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-w:hover{background:#fff;color:var(--ink)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-deep);color:#fff}
.btn-wa{background:var(--wa);color:#fff}

/* header */
.hdr{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);transition:background-color .2s ease-out,box-shadow .2s ease-out}
.hdr.scrolled{box-shadow:0 6px 20px rgba(20,40,55,.08)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
@media (min-width:768px){.hdr .wrap{height:80px}}
.hdr img{height:40px}
@media (min-width:768px){.hdr img{height:46px}}
.nav{display:none}
.nav a{color:var(--ink);text-decoration:none;font-weight:500;font-size:15px;padding:12px 0;position:relative}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.nav a:hover::after{transform:scaleX(1)}
.hdr-cta{display:none}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border:1px solid var(--field);background:#fff;border-radius:8px;color:var(--ink);cursor:pointer}
.menu-btn svg{width:22px;height:22px}
@media (min-width:1000px){.nav{display:flex;gap:32px}.hdr-cta{display:inline-flex;min-height:48px}.menu-btn{display:none}}
.mnav{display:none;background:#fff}
.mnav.open{display:block}
.mnav a{display:block;padding:14px var(--pad);color:var(--ink);text-decoration:none;font:600 26px/1.2 var(--display);letter-spacing:-.02em;border-top:1px solid var(--line)}
@media (min-width:1000px){.mnav{display:none!important}}


.more{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-weight:600;text-decoration:none}
.more svg{width:18px;height:18px;transition:transform .2s var(--ease)}
.more:hover svg{transform:translateX(3px)}

/* CTA: light band, faint blueprint grid */
.cta{background-color:var(--sky);background-image:linear-gradient(#D6EAF5 1px,transparent 1px),linear-gradient(90deg,#D6EAF5 1px,transparent 1px);background-size:40px 40px;color:var(--body)}
.cta h2 em{font-style:normal;color:var(--blue)}
.cta h2{font-size:clamp(40px,7vw,96px);line-height:.95;max-width:14ch}
.cta-row{display:grid;gap:28px;margin-top:32px}
@media (min-width:900px){.cta-row{grid-template-columns:minmax(0,1fr) auto;align-items:end}}
.cta p{font-size:19px;max-width:48ch;color:var(--body)}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px}

.ftr{background:var(--graphite-2);color:#B3BDC5;padding:56px 0 100px;font-size:15px}
@media (min-width:768px){.ftr{padding-bottom:32px}}
.ftr-grid{display:grid;gap:36px}
@media (min-width:768px){.ftr-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,.9fr) minmax(0,.9fr) minmax(0,1.5fr)}}
.ftr h2{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin-bottom:12px;font-weight:600}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.ftr a{color:#B3BDC5;transition:color .15s ease-out;text-decoration:none;display:inline-block;padding:4px 0}
.ftr a:hover{color:var(--cyan)}
.ftr img{height:44px;margin-bottom:16px}
.ftr-bot{margin-top:40px;padding-top:20px;border-top:1px solid #343D44;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px;font-size:13px;color:#98A4AD}

.bar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.97);border-top:1px solid var(--line)}
.bar .btn{min-height:48px}
@media (min-width:768px){.bar{display:none}}
.float{display:none;position:fixed;right:calc(28px + env(safe-area-inset-right));bottom:calc(28px + env(safe-area-inset-bottom));z-index:40;width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;align-items:center;justify-content:center;box-shadow:0 10px 26px rgba(20,40,30,.28);transition:transform .2s ease-out}.float:hover{transform:translateY(-2px)}.float svg{width:28px;height:28px}
@media (min-width:768px){.float{display:inline-flex}}


@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* utilities */
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:fixed;left:12px;top:-60px;z-index:100;background:var(--ink);color:#fff;padding:12px 18px;border-radius:8px;font-weight:600;text-decoration:none;transition:transform .15s ease-out}
.skip:focus{transform:translateY(72px);color:#fff}
.nav a[aria-current="page"]::after{transform:scaleX(1)}

/* inner-page head on the blueprint grid */
.phero{position:relative;overflow:hidden;background-color:var(--hero-bg);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:40px 40px;border-bottom:1px solid var(--line);padding:28px 0 56px}
.phero .wrap{position:relative}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--muted);margin:0 0 32px;padding:0;list-style:none}
.crumbs a{color:var(--muted);text-decoration:none;display:inline-block;padding:6px 0}
.crumbs a:hover{color:var(--blue)}
.crumbs li:not(:last-child)::after{content:"/";margin-left:8px;color:var(--field)}
.crumbs [aria-current]{color:var(--ink);font-weight:500;padding:6px 0;display:inline-block}
.hl{font-style:normal;color:var(--blue);background:linear-gradient(transparent 22%,var(--tint) 22%,var(--tint) 92%,transparent 92%);padding:0 .1em;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.swoosh{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hdr img,.ftr img{width:auto}

/* ── Responsive & touch refinements ─────────────────────────────────── */
.hdr .wrap>a:first-child{display:inline-flex;align-items:center;min-height:44px}
.bar{grid-template-columns:repeat(2,minmax(0,1fr));padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right))}
.bar .btn{padding:0 12px;white-space:nowrap}
.btn{max-width:100%;text-align:center}
.crumbs li{white-space:nowrap}

/* Phones: primary actions go full width, easy to reach with the thumb */
@media (max-width:519px){
  .hero-ctas .btn,.ctas .btn,.cta-btns .btn{flex:1 1 100%}
}
/* Very narrow phones (folded screens, old SE) */
@media (max-width:359px){
  :root{--pad:16px}
  .bar{gap:6px}
  .bar .btn{padding:0 8px;gap:6px;font-size:15px}
}
/* Touch screens: every link in lists gets a 44px tall hit area */
@media (pointer:coarse){
  .ftr ul{gap:0}
  .ftr a{padding:10px 0}
  .crumbs a,.crumbs [aria-current]{padding:12px 0}
  .ftr-bot a{display:inline-block;padding:12px 0}
}
/* Landscape phones: slimmer header, no bottom bar eating the short screen */
@media (orientation:landscape) and (max-height:500px){
  .hdr .wrap{height:56px}
  .hdr img{height:34px}
  html{scroll-padding-top:64px}
  .bar{display:none}
  .float{display:inline-flex;width:52px;height:52px;right:calc(16px + env(safe-area-inset-right));bottom:calc(16px + env(safe-area-inset-bottom))}
  .ftr{padding-bottom:32px}
  body .hero h1{font-size:44px}
  body .s-hero h1,body .phero h1{font-size:40px}
}
.ftr a,.mail{overflow-wrap:break-word}

/* legal / long-form text */
.prose{max-width:72ch}
.prose h2{font-size:clamp(26px,3vw,34px);line-height:1.15;margin:44px 0 12px}
.prose h2:first-child{margin-top:0}
.prose p,.prose ul{font-size:17px;margin:0 0 14px}
.prose ul{padding-left:22px}
.prose li{margin-bottom:6px}
.prose a{overflow-wrap:break-word}
.ftr-bot a{color:inherit;text-decoration:underline;text-underline-offset:3px}

/* sister company: Sigma / Power switch above the header, and footer row */
:root{--pw-navy:#22406A;--pw-orange:#F29F2E}
.ext{width:14px;height:14px;display:inline-block;vertical-align:-2px;margin-left:4px;flex:none}
.sw{background:var(--sky);border-bottom:1px solid var(--line)}
.sw .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:8px;padding-bottom:8px}
.sw-track{position:relative;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:min(100%,420px);margin:0;padding:4px;list-style:none;border-radius:999px;background:#fff;border:1px solid var(--line)}
.sw-knob{position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:999px;background:var(--blue);box-shadow:0 4px 12px rgba(20,40,55,.18);transition:transform .2s var(--ease)}
/* pointing at Power, the switch leans towards it */
.sw-track:has(a:hover) .sw-knob,.sw-track:has(a:focus-visible) .sw-knob{transform:translateX(10px)}
.sw-opt{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 12px;border-radius:999px;font:600 15px/1 var(--display);color:var(--ink);text-decoration:none;white-space:nowrap}
.sw-opt small{font:500 13px/1 var(--text);color:inherit}
.sw-opt[aria-current]{color:#fff}
.sw-opt .mk{width:22px;height:22px;flex:none;border-radius:6px}
.sw-opt .ext{margin-left:0}
a.sw-opt{transition:color .2s ease-out}
@media (hover:hover){a.sw-opt:hover{color:var(--pw-navy)}}
@media (max-width:419px){.sw-opt small{display:none}}
.sw-note{display:none;font-size:14px;color:var(--muted)}
@media (min-width:900px){.sw-note{display:block}}
@media (orientation:landscape) and (max-height:500px){.sw .wrap{padding-top:4px;padding-bottom:4px}}
.ftr-sis{margin-top:40px;padding-top:24px;border-top:1px solid #343D44;display:grid;gap:8px 32px}
@media (min-width:768px){.ftr-sis{grid-template-columns:minmax(0,1fr) auto;align-items:baseline}}
.ftr-sis h2{margin:0 0 4px}
.ftr-sis p{max-width:60ch}
.ftr .ftr-sis a{color:#fff;font-weight:600;white-space:nowrap}
.ftr .ftr-sis a:hover{color:var(--cyan)}