/* ==========================================================================
   Tecnología DTI
   ========================================================================== */

/* ---------- Variables ---------- */
:root{
  --orange:#ee4f27;
  --orange-dark:#d63e18;
  --ink:#1d1d1b;
  --ink-2:#3c3c3b;
  --grey:#f2f2f2;
  --grey-2:#d9d9d9;
  --grey-3:#8c8c8c;
  --white:#fff;
  --display:"Anton","Impact","Arial Narrow Bold",sans-serif;
  --body:"Montserrat",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --max:1240px;
  --gutter:clamp(16px,4vw,40px);
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--body);font-size:1rem;line-height:1.55;color:var(--ink);background:var(--white);overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
h1,h2,h3,p{margin:0}
.container{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--orange);color:#fff;padding:8px 14px;z-index:100}
.skip-link:focus{left:8px}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}

/* Titulares display (Anton, mayúsculas) */
.display{font-family:var(--display);font-weight:400;text-transform:uppercase;line-height:1.02;letter-spacing:.005em;font-size:clamp(2rem,4.2vw,3.4rem)}
.display span{display:block}
.display .dark{color:var(--ink)}
.display .accent{color:var(--orange)}
.display--sm{font-size:clamp(1.4rem,2.2vw,1.9rem)}
.display--outline{color:var(--ink);text-shadow:2px 2px 0 #fff,3px 3px 0 var(--ink)}

/* Botones */
.btn{display:inline-block;background:var(--orange);color:#fff;text-decoration:none;font-weight:700;text-transform:uppercase;border-radius:3px;transition:background .2s}
.btn:hover{background:var(--orange-dark)}
.btn--sm{font-size:.72rem;padding:5px 18px;letter-spacing:.03em}

/* ---------- Hero ---------- */
.hero{background:var(--ink);color:#fff;padding:clamp(24px,4vw,40px) 0 clamp(20px,3vw,32px)}
.hero__top{display:flex;align-items:center;gap:clamp(16px,4vw,48px)}
.hero__seal{width:clamp(90px,13vw,160px);filter:invert(1);flex:none}
.hero__title{font-family:var(--display);font-weight:400;text-transform:uppercase;line-height:1.05;font-size:clamp(1.7rem,5vw,4rem);text-shadow:3px 3px 0 #000,4px 4px 0 #6b6b6b}
.hero__title span{display:block}
.hero__title span:first-child{padding-left:clamp(0px,3vw,40px)}
.hero__title em{font-style:normal;color:var(--orange)}
.hero__bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:clamp(24px,4vw,44px)}
.hero__badge{font-family:var(--display);text-transform:uppercase;font-size:clamp(1.5rem,3.6vw,3rem);letter-spacing:.01em;padding-left:clamp(0px,8vw,150px)}
.hero__qs{width:clamp(150px,22vw,290px)}

/* ---------- Intro ---------- */
.intro{position:relative;overflow:hidden;min-height:clamp(420px,42vw,600px);display:flex;align-items:center;background:#e9e9e9}
.intro__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 62%}
.intro::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(100deg,rgba(236,236,236,.92) 0%,rgba(236,236,236,.8) 32%,rgba(236,236,236,.35) 50%,rgba(236,236,236,0) 62%)}
.intro__content{position:relative;z-index:2;padding-block:48px}
.intro .display{font-size:clamp(2.4rem,6vw,5rem);text-shadow:2px 2px 0 rgba(255,255,255,.55)}
.intro p{max-width:430px;margin-top:20px;font-size:clamp(.92rem,1.2vw,1.05rem);font-weight:500}
.intro__logo{position:absolute;z-index:2;top:clamp(16px,3vw,36px);right:clamp(16px,8vw,120px);width:clamp(130px,22vw,300px)}

/* ---------- Iconos ventajas ---------- */
.perks{padding:clamp(32px,5vw,64px) 0}
.perks__list{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;justify-items:center}
.perks a{display:flex;flex-direction:column;align-items:center;gap:10px;text-decoration:none;transition:transform .25s}
.perks a:hover{transform:translateY(-4px)}
.perks img{height:clamp(52px,8vw,100px);width:auto}
.perks span{font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--grey-3)}

/* ---------- Ventajas detalladas ---------- */
.feature{display:grid;grid-template-columns:1fr 1fr;align-items:stretch;margin-bottom:6px;scroll-margin-top:90px}
.feature__media{min-height:clamp(260px,24vw,360px);overflow:hidden}
.feature__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s ease}
.feature:hover .feature__media img{transform:scale(1.04)}
.feature__text{position:relative;display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,5vw,64px) clamp(20px,6vw,90px)}
.feature__text .display{font-size:clamp(2rem,3.4vw,2.9rem)}
.feature__text p{max-width:430px;margin-top:12px;font-weight:500}
.feature__icon{position:absolute;top:clamp(16px,3vw,28px);right:clamp(16px,5vw,60px);width:clamp(58px,7vw,90px)}
.feature--reverse .feature__media{order:2}
#elongacion .feature__media img{object-position:center 45%}

/* ---------- Partner ---------- */
.partner{padding:clamp(40px,6vw,80px) 0}
.partner__brand{width:min(560px,80%);margin:0 auto clamp(32px,5vw,56px)}
.partner__head{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:clamp(16px,3vw,32px)}
.partner__seal{width:clamp(80px,11vw,130px)}
.partner__head h2{font-size:clamp(1.7rem,3.6vw,3rem);text-align:center}
.partner__logos{display:flex;flex-direction:column;align-items:center;gap:10px;align-self:end}
.partner__logos img{width:clamp(110px,13vw,170px)}
.partner__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,40px);margin-top:clamp(24px,4vw,40px);align-items:start}
.partner__text{text-align:right}
.partner__text h3{font-size:clamp(1.5rem,2.6vw,2.15rem);margin:0 0 14px}
.partner__text h3:not(:first-child){margin-top:clamp(28px,4vw,44px)}
.partner__text h3 .lg{font-size:1.3em}
.partner__text p{margin-top:12px;font-size:.98rem}
.partner__media img{width:100%;aspect-ratio:3/4;object-fit:cover}

/* ---------- Instalaciones ---------- */
.plant{background:var(--grey);padding-top:6px}
.plant__grid{display:grid;grid-template-columns:1.6fr 1fr;gap:6px;max-width:1500px;margin-inline:auto}
.plant__hero{position:relative;overflow:hidden;min-height:440px;background:#cfd6de}
.plant__hero>img:first-child{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.plant__techs{position:absolute;left:0;right:0;bottom:0;display:flex;flex-wrap:wrap;gap:0;padding:28px 24px 18px;background:linear-gradient(transparent,rgba(255,255,255,.85) 40%)}
.plant__techs span{font-family:var(--body);font-weight:500;font-size:clamp(1rem,1.6vw,1.35rem);padding:0 14px;border-left:2px solid var(--ink);line-height:1}
.plant__techs span:first-child{border-left:0;padding-left:0}
.plant__techs sup{font-size:.5em}
.plant__techs small{display:block;font-size:.5em;text-transform:uppercase}
.plant__panel{background:#fbf8f3;padding:clamp(20px,3vw,30px);display:flex;flex-direction:column;gap:14px}
.plant__panel>p{font-size:.88rem}
.plant__icons{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center;font-size:.66rem;font-weight:700;text-transform:uppercase;line-height:1.25}
.plant__icons svg,.plant__quality svg{display:block;width:30px;height:30px;margin:0 auto 6px;fill:none;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.plant__thumb{position:relative}
.plant__thumb img{width:100%;aspect-ratio:2.4/1;object-fit:cover}
.plant__thumb figcaption{position:absolute;top:8px;left:8px;background:var(--ink);color:#fff;font-size:.65rem;font-weight:700;text-transform:uppercase;padding:3px 8px}
.plant__quality{display:flex;gap:16px;align-items:center;justify-content:space-between}
.plant__quality h3{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:1.2rem;position:relative;padding-bottom:6px;margin-bottom:6px}
.plant__quality h3::after{content:"";position:absolute;left:0;bottom:0;width:36px;height:3px;background:var(--orange)}
.plant__quality p{font-size:.8rem}
.plant__quality svg{width:40px;height:40px;flex:none;margin:0}

.trust{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(24px,5vw,64px);padding-block:clamp(36px,5vw,56px)}
.trust h3{margin-bottom:12px}
.trust p{font-size:.95rem}
.trust__checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px;margin-top:18px}
.trust__checks li{font-weight:700;font-size:.85rem;text-transform:uppercase;padding-left:30px;position:relative}
.trust__checks li::before{content:"";position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:4px;border:2px solid var(--ink);background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10l3.5 3.5L15 7' fill='none' stroke='%23ee4f27' stroke-width='2.4' stroke-linecap='round'/%3E%3C/svg%3E") center/16px no-repeat}
.trust__list li{padding:6px 0 6px 18px;position:relative;border-bottom:1px solid var(--grey-2);font-size:.95rem}
.trust__list li::before{content:"";position:absolute;left:0;top:50%;width:7px;height:7px;background:var(--orange);border-radius:50%;transform:translateY(-50%)}
.ribbon{background:var(--orange);color:#fff}
.ribbon__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px;flex-wrap:wrap;padding-block:14px}
.ribbon__cta{font-weight:500;text-transform:uppercase;text-decoration:none;font-size:clamp(1rem,1.6vw,1.25rem);line-height:1.15;padding-left:48px;position:relative}
.ribbon__cta::before{content:"→";position:absolute;left:0;top:50%;transform:translateY(-50%);font-size:1.6rem;width:36px;height:36px;border:2px solid #fff;border-radius:50%;display:grid;place-items:center;line-height:1}
.ribbon__cta strong{display:block;font-weight:700}
.ribbon ul{display:flex;flex-wrap:wrap}
.ribbon li{font-size:.8rem;font-weight:600;text-transform:uppercase;padding:0 18px;border-left:1px solid rgba(255,255,255,.55)}
.ribbon li:first-child{border-left:0}

/* ---------- 3 pasos ---------- */
.steps{position:relative;padding:clamp(300px,47vw,650px) 0 clamp(40px,5vw,64px);overflow:hidden}
.steps__bg{position:absolute;inset:0 0 auto;height:clamp(480px,64vw,880px)}
.steps__bg img{width:100%;height:100%;object-fit:cover;object-position:center 52%}
.steps__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 55%,rgba(255,255,255,.6) 75%,#fff 100%)}
.steps .container{position:relative}
.steps__title{text-align:center;font-weight:600;font-size:clamp(1.15rem,2.2vw,1.75rem);margin:0 auto clamp(24px,3vw,40px);width:fit-content;max-width:100%;background:rgba(255,255,255,.88);backdrop-filter:blur(4px);padding:10px 26px;border-radius:40px}
.steps__list{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2.5vw,32px)}
.step__card{position:relative;display:grid;place-items:center;text-align:center;min-height:clamp(150px,15vw,200px);background:rgba(217,217,217,.92);border-radius:10px;padding:40px 20px 24px;font-weight:500;font-size:clamp(1.05rem,1.7vw,1.4rem);line-height:1.3;box-shadow:0 10px 30px rgba(0,0,0,.08)}
.step--dark .step__card{background:rgba(140,140,140,.95);color:#fff}
.step__num{position:absolute;top:0;left:0;background:var(--orange);color:#fff;font-weight:600;font-size:1.3rem;width:46px;height:42px;display:grid;place-items:center;border-radius:10px 0 0 0}
.step p{margin-top:18px;font-size:.85rem;padding-inline:clamp(8px,2vw,20px)}
.step p strong{display:block;font-weight:600}

/* ---------- Promo ---------- */
.promo{padding-block:clamp(24px,4vw,48px)}
.promo__box{position:relative;overflow:hidden;background:#f6f2ec;display:grid;place-items:center;min-height:260px;padding:clamp(24px,3vw,36px) clamp(16px,15vw,210px);box-shadow:0 12px 40px rgba(0,0,0,.08)}
.promo__l,.promo__r{position:absolute;top:0;height:100%;width:auto;object-fit:cover;pointer-events:none}
.promo__l{left:0}
.promo__r{right:0}
.promo__body{position:relative;text-align:center}
.promo__title{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(2.2rem,6vw,4.6rem);line-height:1}
.promo__title span{color:var(--orange);text-transform:none}
.promo__sub{font-weight:800;font-size:clamp(1.3rem,3.2vw,2.4rem);line-height:1.1;letter-spacing:-.01em}
.promo__sub span{color:var(--orange)}
.promo__note{font-weight:600;margin-top:8px;font-size:clamp(.85rem,1.4vw,1.1rem)}
.promo__note mark{background:var(--orange);color:#fff;padding:1px 8px;border-radius:2px;transform:skew(-6deg);display:inline-block}
.promo__perks{display:flex;flex-wrap:wrap;justify-content:center;margin-top:18px;gap:10px 0}
.promo__perks li{display:flex;align-items:center;gap:8px;padding:0 12px;white-space:nowrap;border-left:1px solid var(--grey-3);font-size:.78rem;text-align:left;line-height:1.2}
.promo__perks li:first-child{border-left:0}
.promo__perks strong{display:block;font-weight:700}
.promo__perks svg{width:32px;height:32px;flex:none;fill:none;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.promo__perks svg .o{stroke:var(--orange)}

/* ---------- FAQ ---------- */
.faq{padding-block:clamp(24px,4vw,48px) clamp(48px,6vw,80px);max-width:900px}
.faq h2{text-align:center;margin-bottom:24px}
.faq details{border-bottom:1px solid var(--grey-2)}
.faq summary{cursor:pointer;list-style:none;padding:16px 36px 16px 0;font-weight:700;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--orange);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{padding:0 0 18px;font-size:.95rem}

/* ---------- Animaciones de entrada ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .feature__media img,.perks a{transition:none}
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:1024px){
  .plant__grid{grid-template-columns:1fr}
  }
@media (max-width:860px){
  .feature,.feature--reverse{grid-template-columns:1fr}
  .feature--reverse .feature__media{order:0}
  .partner__head{grid-template-columns:1fr;justify-items:center;text-align:center}
  .partner__logos{flex-direction:row;align-self:center}
  .partner__grid{grid-template-columns:1fr}
  .partner__text{text-align:left}
  .trust{grid-template-columns:1fr}
  .steps__list{grid-template-columns:1fr;max-width:480px;margin-inline:auto}
  .promo__box{padding-inline:20px}
  .promo__l,.promo__r{opacity:.18}
  .intro::before{background:linear-gradient(180deg,rgba(236,236,236,.9) 0%,rgba(236,236,236,.75) 60%,rgba(236,236,236,.35) 100%)}
}
@media (max-width:560px){
  .hero__top{flex-direction:column;align-items:flex-start}
  .hero__bottom{flex-direction:column;align-items:flex-start}
  .hero__badge{padding-left:0}
  .hero__title span:first-child{padding-left:0}
  .perks__list{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .plant__icons{grid-template-columns:repeat(2,1fr)}
      .ribbon li{padding:4px 12px}
  .promo__perks li{border-left:0;width:50%}
  .trust__checks{grid-template-columns:1fr}
  }