/* Layout: barra utilitaria, cabecera con mega-menú, hero con carrusel, selector guiado, tarjetas, noticias, contacto, footer extenso. Paleta tomada del logo: naranja IECE y azul marino. */
:root{
  --f-display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --f-body:"Barlow",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --bg:#F5F3F0; --surface:#FFFFFF; --surface2:#EEE9E3; --fg:#101B3A; --muted:#506078; --line:#E0D9D0;
  --brand:#102858; --brand-ink:#FFFFFF; --link:#102858; --accent:#EE8133; --accent-ink:#101B3A; --accent-text:#C4600F;
  --hero:#0B1C45; --hero2:#142F6B; --hero-fg:#FFFFFF; --hero-muted:#B8C4DE; --focus:#EE8133;
  --shadow:0 14px 34px rgba(16,40,88,.12);
  --r:6px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#08122B; --surface:#0E1C42; --surface2:#142757; --fg:#EAEFF9; --muted:#9FB0D0; --line:#22366B;
    --brand:#F08A45; --brand-ink:#101B3A; --link:#FFA566; --accent:#F08A45; --accent-ink:#101B3A; --accent-text:#FFA566;
    --hero:#060E24; --hero2:#0F2557; --shadow:0 14px 34px rgba(0,0,0,.45); color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#08122B; --surface:#0E1C42; --surface2:#142757; --fg:#EAEFF9; --muted:#9FB0D0; --line:#22366B;
  --brand:#F08A45; --brand-ink:#101B3A; --link:#FFA566; --accent:#F08A45; --accent-ink:#101B3A; --accent-text:#FFA566;
  --hero:#060E24; --hero2:#0F2557; --shadow:0 14px 34px rgba(0,0,0,.45); color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--bg);color:var(--fg);font:400 17px/1.55 var(--f-body);-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--surface)}
img,svg{max-width:100%}
a{color:var(--link)}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.05;margin:0;text-wrap:balance;letter-spacing:.005em}
h2{font-size:clamp(2rem,4.2vw,3rem);font-weight:700}
h3{font-size:1.55rem;font-weight:600}
p{margin:0}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:2px}
.wrap{max-width:1240px;margin-inline:auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:8px;top:-60px;background:var(--accent);color:var(--accent-ink);padding:10px 14px;z-index:100;font-weight:700}
.skip:focus{top:8px}
.eyebrow{font:500 .78rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:.55em;font:700 .95rem/1 var(--f-body);letter-spacing:.06em;text-transform:uppercase;text-decoration:none;
  padding:15px 22px;border-radius:var(--r);border:2px solid transparent;cursor:pointer;transition:transform .15s,background .15s,color .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-accent{background:var(--accent);color:var(--accent-ink)}
.btn-ghost{border-color:currentColor;background:transparent;color:inherit}
.btn svg{width:1.1em;height:1.1em}

/* Barra utilitaria */
.util{background:var(--hero);color:var(--hero-muted);font-size:.85rem}
.util .wrap{display:flex;align-items:center;gap:20px;min-height:42px;flex-wrap:wrap;padding-block:4px}
.util a{color:var(--hero-fg);text-decoration:none}
.util a:hover{text-decoration:underline}
.util .sp{flex:1}
.util .tel{font-family:var(--f-mono);font-size:.82rem}
.search{position:relative}
.search input{width:min(260px,52vw);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);color:var(--hero-fg);padding:8px 12px 8px 34px;border-radius:999px;font:inherit;font-size:.88rem}
.search input::placeholder{color:var(--hero-muted)}
.search svg{position:absolute;left:11px;top:50%;translate:0 -50%;width:15px;height:15px;color:var(--hero-muted)}
.results{position:absolute;right:0;top:calc(100% + 8px);width:min(360px,92vw);background:var(--surface);color:var(--fg);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);z-index:80;padding:6px;max-height:60vh;overflow:auto}
.results a{display:block;padding:10px 12px;color:var(--fg);border-radius:4px;text-decoration:none}
.results a:hover,.results a:focus{background:var(--surface2)}
.results small{display:block;color:var(--muted);font-size:.8rem}
.results p{padding:10px 12px;color:var(--muted);font-size:.92rem}
.pal{display:flex;gap:4px;align-items:center}
.pal button,.themebtn{background:transparent;border:1px solid rgba(255,255,255,.3);color:var(--hero-fg);border-radius:999px;font:600 .75rem/1 var(--f-mono);padding:6px 10px;cursor:pointer}
.pal button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}

/* Cabecera */
.head{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--surface);border-bottom:1px solid var(--line)}
.head .wrap{display:flex;align-items:center;gap:24px;min-height:76px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--fg)}
.logo svg{width:40px;height:40px;flex:none}
.logo b{font:700 1.9rem/1 var(--f-display);letter-spacing:.06em}
.logo span{display:block;font:500 .62rem/1.15 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);max-width:140px}
.nav{display:flex;gap:2px;margin-left:auto;align-items:center}
.nav>a,.nav>button{background:none;border:0;font:600 .95rem/1 var(--f-body);letter-spacing:.05em;text-transform:uppercase;color:var(--fg);padding:30px 14px;cursor:pointer;text-decoration:none;position:relative}
.nav>a::after,.nav>button::after{content:"";position:absolute;left:14px;right:14px;bottom:18px;height:3px;background:var(--accent);scale:0 1;transition:scale .2s;transform-origin:left}
.nav>a:hover::after,.nav>button:hover::after,.nav>button[aria-expanded="true"]::after,.nav>a.on::after{scale:1 1}
.head .cta{margin-left:8px;padding:13px 18px}
.burger{display:none;margin-left:auto;background:none;border:2px solid var(--line);border-radius:var(--r);width:46px;height:46px;color:var(--fg);cursor:pointer}
.mega{position:absolute;left:0;right:0;top:100%;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
.mega .wrap{display:grid;grid-template-columns:1.1fr repeat(3,1fr);gap:32px;padding-block:32px}
.mega h4{font:600 .8rem/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.mega ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.mega a{color:var(--fg);text-decoration:none;font-weight:500}
.mega a:hover{color:var(--link);text-decoration:underline}
.mega .feat{background:var(--hero);color:var(--hero-fg);padding:22px;border-radius:var(--r)}
.mega .feat h3{font-size:1.7rem;margin-bottom:8px}
.mega .feat p{color:var(--hero-muted);font-size:.95rem;margin-bottom:16px}

/* Hero */
.hero{background:var(--hero);color:var(--hero-fg);position:relative;overflow:hidden;isolation:isolate}
.slides{display:grid}
.slide{grid-area:1/1;opacity:0;visibility:hidden;transition:opacity .6s,visibility .6s;position:relative}
.slide.on{opacity:1;visibility:visible}
.slide .art{position:absolute;inset:0;z-index:-1;background:linear-gradient(115deg,var(--hero) 35%,var(--hero2))}
.slide .art svg{position:absolute;right:0;top:0;height:100%;width:62%;opacity:.9}
.slide .wrap{padding-block:84px 120px;display:grid;grid-template-columns:minmax(0,640px);min-height:520px;align-content:center}
.slide h1{font-size:clamp(2.8rem,7vw,5.4rem);font-weight:700;text-transform:uppercase;letter-spacing:.01em;margin:16px 0 20px}
.slide h1 em{font-style:normal;color:var(--accent)}
.slide p.lead{font-size:1.2rem;color:var(--hero-muted);max-width:52ch;margin-bottom:30px}
.slide .eyebrow{color:var(--accent)}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.hero .ctl{position:absolute;left:0;right:0;bottom:0}
.hero .ctl .wrap{display:flex;align-items:center;gap:14px;padding-block:22px}
.dots{display:flex;gap:8px}
.dots button{width:38px;height:6px;border:0;background:rgba(255,255,255,.3);cursor:pointer;padding:0;border-radius:3px;position:relative;overflow:hidden}
.dots button[aria-current="true"]{background:rgba(255,255,255,.35)}
.dots button[aria-current="true"]::after{content:"";position:absolute;inset:0;background:var(--accent);transform-origin:left;animation:fill var(--t,7s) linear forwards}
.hero.paused .dots button[aria-current="true"]::after{animation-play-state:paused}
@keyframes fill{from{scale:0 1}to{scale:1 1}}
.pp{margin-left:auto;background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:8px 14px;font:600 .78rem var(--f-mono);cursor:pointer}
.facts{background:var(--hero2);border-top:1px solid rgba(255,255,255,.12)}
.facts .wrap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
.facts div{padding:18px 20px;border-left:1px solid rgba(255,255,255,.12)}
.facts div:first-child{border-left:0;padding-left:0}
.facts b{display:block;font:700 1.5rem/1.1 var(--f-display);color:var(--hero-fg);letter-spacing:.03em}
.facts span{font:500 .72rem/1.3 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--hero-muted)}
.flow{stroke-dasharray:6 10;animation:dash 1.6s linear infinite}
@keyframes dash{to{stroke-dashoffset:-32}}

/* Acceso rápido flotante */
.quick{position:fixed;right:0;top:50%;translate:0 -50%;z-index:40;display:grid;gap:2px;padding-right:env(safe-area-inset-right,0px)}
.quick a{display:flex;align-items:center;gap:10px;background:var(--accent);color:var(--accent-ink);text-decoration:none;padding:12px 14px;font:700 .78rem/1.1 var(--f-body);letter-spacing:.06em;text-transform:uppercase;border-radius:var(--r) 0 0 var(--r);width:48px;overflow:hidden;white-space:nowrap;transition:width .25s}
.quick a:nth-child(2){background:var(--brand);color:var(--brand-ink)}
.quick a:hover,.quick a:focus-visible{width:210px}
.quick svg{width:20px;height:20px;flex:none}

/* Secciones */
section{padding-block:96px}
.sec-head{display:grid;gap:14px;margin-bottom:44px;max-width:760px}
.sec-head p{color:var(--muted);font-size:1.1rem}
.alt{background:var(--surface)}
.wizard{margin-top:-1px;background:var(--surface);border-bottom:1px solid var(--line);padding-block:56px}
.seg{display:inline-flex;border:2px solid var(--fg);border-radius:var(--r);overflow:hidden;margin:18px 0 26px;flex-wrap:wrap}
.seg button{background:transparent;border:0;color:var(--fg);padding:12px 18px;font:700 .85rem var(--f-body);letter-spacing:.05em;text-transform:uppercase;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.tile{background:var(--bg);border:2px solid var(--line);border-radius:var(--r);padding:18px;text-align:left;cursor:pointer;color:var(--fg);font:600 1rem/1.25 var(--f-body);display:grid;gap:12px;min-height:118px;align-content:space-between}
.tile svg{width:30px;height:30px;color:var(--link)}
.tile:hover{border-color:var(--brand)}
.tile[aria-pressed="true"]{border-color:var(--accent);background:var(--surface2);box-shadow:inset 0 0 0 1px var(--accent)}
.wiz-foot{display:flex;gap:16px;align-items:center;margin-top:24px;flex-wrap:wrap}
.wiz-foot span{color:var(--muted);font-size:.95rem}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;display:flex;flex-direction:column;gap:14px;min-width:0}
.alt .card{background:var(--bg)}
.card .ic{width:54px;height:54px;border-radius:var(--r);background:var(--brand);color:var(--brand-ink);display:grid;place-items:center}
.card .ic svg{width:30px;height:30px}
.card p{color:var(--muted);font-size:.98rem}
.card ul{margin:0;padding:0;list-style:none;display:grid;gap:6px;font-size:.93rem}
.card li::before{content:"";display:inline-block;width:8px;height:8px;background:var(--accent);margin-right:10px;rotate:45deg}
.card .more{margin-top:auto;font-weight:700;letter-spacing:.05em;text-transform:uppercase;font-size:.85rem;text-decoration:none;color:var(--link)}
.card .more:hover{text-decoration:underline}

/* Mantenimiento tabs */
.tabs{display:grid;grid-template-columns:300px minmax(0,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--surface)}
.tablist{display:grid;align-content:start;background:var(--surface2)}
.tablist button{background:none;border:0;border-bottom:1px solid var(--line);text-align:left;padding:22px 24px;cursor:pointer;color:var(--fg);font:600 1.05rem/1.25 var(--f-body);display:grid;gap:4px;border-left:6px solid transparent}
.tablist button small{font:500 .74rem var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.tablist button[aria-selected="true"]{background:var(--surface);border-left-color:var(--accent)}
.panel{padding:40px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:40px;align-items:center}
.panel[hidden]{display:none}
.panel h3{font-size:2.2rem;margin-bottom:14px}
.panel p{color:var(--muted);margin-bottom:20px}
.panel dl{margin:0;display:grid;gap:0;border-top:1px solid var(--line)}
.panel dl div{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line)}
.panel dt{font:500 .78rem var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.panel dd{margin:0;font-weight:600;text-align:right}
.panel svg{width:100%;height:auto;max-height:260px;color:var(--link)}

/* Nosotros */
.about{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.about p{color:var(--muted);margin-bottom:16px}
.values{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.values div{border:1px solid var(--line);background:var(--surface);padding:22px;border-radius:var(--r)}
.values b{display:block;font:700 1.35rem var(--f-display);margin-bottom:6px;letter-spacing:.03em}
.values span{color:var(--muted);font-size:.95rem}

/* Ejemplos */
.badge{display:inline-block;font:600 .7rem/1 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;padding:6px 8px;border:1px dashed var(--muted);color:var(--muted);border-radius:3px}
.proj{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;min-width:0}
.pcard .ph{aspect-ratio:16/9;background:linear-gradient(135deg,var(--hero),var(--hero2));position:relative;overflow:hidden}
.pcard .ph svg{position:absolute;inset:0;width:100%;height:100%}
.pcard .body{padding:22px;display:grid;gap:12px}
.pcard h3{font-size:1.45rem}
.pcard dl{margin:0;display:grid;gap:6px;font-size:.92rem}
.pcard dl div{display:flex;gap:10px}
.pcard dt{font:500 .72rem var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);flex:0 0 84px;padding-top:3px}
.pcard dd{margin:0}

/* Noticias */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.chips button{background:var(--surface);border:1px solid var(--line);color:var(--fg);padding:9px 16px;border-radius:999px;font:600 .88rem var(--f-body);cursor:pointer}
.chips button[aria-pressed="true"]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.news{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.news article{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;display:flex;flex-direction:column;gap:12px;min-width:0}
.news article:first-child{grid-column:span 2;background:var(--hero);color:var(--hero-fg);border-color:var(--hero)}
.news article:first-child p{color:var(--hero-muted)}
.news article:first-child .eyebrow{color:var(--accent)}
.news h3{font-size:1.6rem}
.news p{color:var(--muted);font-size:.98rem}
.news article:first-child h3{font-size:2.3rem}
.news a{margin-top:auto;font-weight:700;letter-spacing:.05em;text-transform:uppercase;font-size:.82rem;color:inherit}
.news article:first-child a{color:var(--accent)}
.news [hidden]{display:none}

/* Contacto */
.contact{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px}
.info{display:grid;gap:18px;align-content:start}
.info .row{display:grid;gap:4px;border-top:1px solid var(--line);padding-top:16px}
.info .val{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font:500 1.15rem var(--f-mono);word-break:break-word}
.copy{background:var(--surface2);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font:600 .72rem var(--f-mono);cursor:pointer;color:var(--fg)}
form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:32px;display:grid;gap:18px;box-shadow:var(--shadow)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:grid;gap:6px;font:600 .82rem var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);min-width:0}
input,select,textarea{font:400 1rem var(--f-body);color:var(--fg);background:var(--bg);border:2px solid var(--line);border-radius:var(--r);padding:12px 14px;width:100%;letter-spacing:0;text-transform:none}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--brand);outline:none}
.out{display:grid;gap:10px;padding:16px;border:2px dashed var(--accent);border-radius:var(--r);background:var(--bg)}
.out[hidden]{display:none}
.out pre{margin:0;white-space:pre-wrap;font:400 .9rem/1.5 var(--f-mono)}
.note{font-size:.88rem;color:var(--muted)}
.err{color:#B42318;font-size:.85rem;font-weight:600}
:root[data-theme="dark"] .err{color:#FF9C92}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .err{color:#FF9C92}}

/* Footer */
footer{background:var(--hero);color:var(--hero-muted);padding-block:64px 28px;font-size:.95rem}
.fgrid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}
footer h4{font:600 .78rem/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--hero-fg);margin-bottom:16px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
footer a{color:var(--hero-muted);text-decoration:none}
footer a:hover{color:var(--hero-fg);text-decoration:underline}
footer .logo{color:var(--hero-fg);margin-bottom:16px}
footer .logo span{color:var(--hero-muted)}
.legal{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between;border-top:1px solid rgba(255,255,255,.15);margin-top:44px;padding-top:22px;font-size:.85rem}

@media (max-width:1080px){
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mega .wrap{grid-template-columns:1fr 1fr}
  .proj,.news{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news article:first-child{grid-column:span 2}
}
@media (max-width:900px){
  .burger{display:grid;place-items:center}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:8px max(16px,env(safe-area-inset-left,0px)) 20px;margin:0;max-height:75vh;overflow:auto}
  .nav.open{display:flex}
  .nav>a,.nav>button{padding:16px 4px;text-align:left;border-bottom:1px solid var(--line)}
  .nav>a::after,.nav>button::after{display:none}
  .head .cta{margin:14px 0 0;justify-content:center}
  .mega{position:static;box-shadow:none;border:0}
  .mega .wrap{grid-template-columns:1fr;padding:16px 0}
  .tabs{grid-template-columns:1fr}
  .tablist{grid-auto-flow:column;overflow-x:auto}
  .tablist button{border-left:0;border-bottom:4px solid transparent;min-width:170px}
  .tablist button[aria-selected="true"]{border-bottom-color:var(--accent)}
  .panel{grid-template-columns:1fr;padding:26px}
  .about,.contact{grid-template-columns:1fr}
  .slide .art svg{width:100%;opacity:.35}
  .fgrid{grid-template-columns:1fr 1fr}
  .quick{display:none}
  section{padding-block:68px}
}
@media (max-width:640px){
  body{font-size:16px}
  .cards,.proj,.news,.two,.values{grid-template-columns:1fr}
  .news article:first-child{grid-column:auto}
  .facts .wrap{grid-template-columns:1fr 1fr}
  .facts div:nth-child(3){border-left:0;padding-left:0}
  .fgrid{grid-template-columns:1fr}
  .slide .wrap{padding-block:56px 110px;min-height:480px}
  .util .sp{display:none}
  .logo span{display:none}
  form{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}