:root{
  --bg:#0f1113;
  --ink:#f4f4f1;
  --line:#272b2f;
  --blue:#0062CC;
  --red:#e73950;
  --page-gutter:clamp(10px,1.6vw,28px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"DM Sans",sans-serif;-webkit-font-smoothing:antialiased;position:relative;min-height:100vh;overflow-x:hidden;transition:background .35s ease,color .35s ease}
body::before{content:"";position:fixed;inset:0;background:url('../img/fondo-aurora.jpg') center/cover no-repeat;z-index:-1;pointer-events:none}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;height:100%;object-fit:cover}
button{font:inherit}

/* LAYOUT */
.shell{position:relative;z-index:2;width:calc(100% - (var(--page-gutter) * 2));margin:0 auto}
.panel{position:relative;overflow:hidden;background:rgba(5,5,5,.84);border:1px solid rgba(255,255,255,.08);border-top:0;border-bottom-color:rgba(255,255,255,.10)}
.intro,.seo{background:rgba(244,247,251,.94);color:#0b0d10;display:grid}
.intro-copy,.seo-copy{display:flex;flex-direction:column;justify-content:space-between;border-right:1px solid rgba(11,13,16,.14)}

/* TIPOGRAFÍA COMÚN */
.serif{font-family:"Instrument Serif",serif;font-weight:400}
.eyebrow{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:#b6b7b2}
.micro{font-size:13px;line-height:1.55;letter-spacing:.08em;text-transform:uppercase;color:#969994;margin-top:6px}
.intro .eyebrow,.seo .eyebrow{font-weight:600}
.reveal{opacity:0;transform:translateY(24px);transition:.8s cubic-bezier(.2,.7,.2,1)}
.reveal.show{opacity:1;transform:none}

/* HERO */
.hero{min-height:880px;display:grid;grid-template-rows:auto 1fr auto}
.nav{display:flex;align-items:center;justify-content:space-between;padding:20px 26px;border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;justify-content:center;min-width:160px;max-width:220px}
.brand-logo{display:block;height:auto;width:clamp(150px, 16vw, 220px);max-width:100%;filter:brightness(0) invert(1)}
.nav-actions{display:flex;align-items:center;gap:24px}
.navlinks{display:flex;gap:30px;font-size:14px;color:#c7c8c4}
.navlinks a{transition:.2s}
.navlinks a:hover{color:#fff}
.hero-stage{position:relative;min-height:700px;padding:70px 48px 50px}
.hero-kicker{display:flex;align-items:center;gap:16px;position:relative;z-index:5}
.hero-kicker::after{content:"";width:86px;height:1px;background:#686a66}
.hero-title{position:relative;z-index:5;margin:32px 0 0;max-width:870px;font-size:clamp(78px,10.6vw,158px);line-height:.76;letter-spacing:-.055em}
.hero-title span{display:block}
.hero-title .indent{margin-left:13vw}
.hero-copy{position:relative;z-index:5;max-width:520px;margin-top:38px;font-size:18px;line-height:1.5;color:#d1d2ce;text-align:justify}
.stack{position:absolute;right:-4%;bottom:-2%;width:min(44vw,600px);height:min(64.8vw,612px);z-index:0;display:flex;align-items:flex-end;justify-content:flex-end;pointer-events:none;overflow:visible}
.brand-mark-image{display:block;height:90%;width:auto;max-width:100%;max-height:100%;object-fit:cover;object-position:left center;margin-bottom:40px}
.hero-bottom{display:grid;grid-template-columns:1.2fr repeat(3,.75fr);gap:18px;padding:20px 26px 22px;border-top:1px solid var(--line);align-items:end}
.hero-bottom .micro:last-child{text-align:right}
.hero-bottom h2{font-family:"Manrope";margin:0;font-size:clamp(28px,3.6vw,50px);line-height:.92;letter-spacing:-.055em}

/* THEME TOGGLE */
.theme-toggle{appearance:none;border:0;background:transparent;color:inherit;cursor:pointer;display:inline-flex;align-items:center;gap:8px;padding:4px 0;font-size:11px;letter-spacing:.09em;text-transform:uppercase}
.theme-toggle__track{width:38px;height:22px;border-radius:999px;padding:3px;display:inline-flex;align-items:center;background:#22272c;border:1px solid #3a4046;transition:.3s ease}
.theme-toggle__thumb{width:14px;height:14px;border-radius:50%;display:block;transition:transform .3s ease,background .3s ease;object-fit:cover;filter:brightness(0) invert(1);background:#f5f5f2;border:1px solid rgba(255,255,255,.35)}
.theme-toggle__icon{width:12px;height:12px;display:inline-flex;align-items:center;justify-content:center;line-height:1}
.theme-toggle__icon img{display:block;width:100%;height:100%;filter:brightness(0) invert(1);opacity:.9}
.theme-toggle__label{min-width:31px;text-align:left}

/* INTRO */
.intro{grid-template-columns:1.05fr .95fr;min-height:650px;border:0}
.intro-copy{padding:46px 44px}
.intro .eyebrow{color:#49515a}
.intro h2{font-family:"Manrope";font-weight:500;font-size:clamp(48px,6.1vw,86px);line-height:.9;letter-spacing:-.065em;margin:54px 0 30px}
.intro h2 em{font-style:normal;color:var(--red)}
.intro p{max-width:560px;color:#4b5660;line-height:1.7;font-size:17px;margin:0;text-align:justify}
.intro .intro-copy>.micro{margin-top:44px;color:#56606a}
.intro-art{position:relative;background:#10151b;overflow:hidden}
.intro-art img{transition:transform .8s ease}
.intro-art:hover img{transform:scale(1.04)}
.intro-art .overlay-copy{position:absolute;left:22px;right:22px;bottom:20px;color:#fff;font-family:"Manrope";font-size:clamp(48px,5.4vw,78px);line-height:.84;letter-spacing:-.07em;text-transform:uppercase}

/* SERVICES */
.services{padding:70px 44px 52px}
.services-head{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:end}
.services h2{font-size:clamp(58px,6.5vw,98px);line-height:.88;letter-spacing:-.04em;margin:10px 0 0;max-width:680px}
.services-head p{margin:0;max-width:560px;color:#a8aaa5;line-height:1.65;font-size:17px;text-align:justify}
.service-list{margin-top:44px;border-top:1px solid var(--line)}
.service{display:grid;grid-template-columns:58px 1.15fr 1fr;gap:18px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.service::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#101823,#0b0d10);transform:translateY(101%);transition:.35s ease}
.service>*{position:relative;z-index:1;transition:.25s ease}
.service:hover::before{transform:none}
.service .n{font-size:13px;color:#878b88}
.service h3{margin:0;font-family:"Manrope";font-size:clamp(24px,2.8vw,42px);font-weight:500;letter-spacing:-.045em}
.service p{margin:0;font-size:15px;line-height:1.65;color:#8f938f}
.service:hover p,.service:hover .n{color:#d5d7d4}

/* PROJECTS */
.projects-top{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;padding:70px 44px 44px}
.projects-top h2{font-size:clamp(52px,6vw,92px);line-height:.88;letter-spacing:-.04em;margin:10px 0 0}
.project-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 22px;padding:0 44px 60px}
.project{display:flex;flex-direction:column}
.project:first-child{grid-column:span 2;grid-row:span 2}
.project:first-child .project-img{flex:1;aspect-ratio:auto;min-height:0}
.project-img{aspect-ratio:3/2;overflow:hidden;background:#17191b}
.project img{transition:transform .9s cubic-bezier(.2,.7,.2,1);cursor:pointer}
.project:hover img{transform:scale(1.04)}
.project-cap{display:grid;grid-template-columns:auto 1fr;align-items:end;gap:14px;padding:16px 0 0}
.project-cap h4{font-family:"Manrope";font-size:clamp(16px,1.3vw,20px);font-weight:500;letter-spacing:-.03em;margin:0}
.project-cat{margin:6px 0 0;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:#8e8f89}
.project-number{font-family:"Instrument Serif",serif;font-size:clamp(38px,3.4vw,52px);line-height:.8;color:var(--red)}

.lightbox{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:32px;background:rgba(7,10,13,.88);z-index:100;opacity:0;visibility:hidden;transition:opacity .25s ease, visibility .25s ease}
.lightbox.show{opacity:1;visibility:visible}
.lightbox-content{position:relative;max-width:min(92vw,1100px);max-height:88vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px}
.lightbox-content img{display:block;max-width:min(92vw,1100px);max-height:82vh;width:auto;height:auto;border-radius:12px;box-shadow:0 26px 60px rgba(0,0,0,.38);object-fit:contain;background:#0b0d10}
.lightbox-content p{margin:0;color:#f4f4f1;font-size:15px;letter-spacing:.02em;text-align:center}
.lightbox-close,.lightbox-nav{position:absolute;top:24px;display:grid;place-items:center;width:44px;height:44px;border:1px solid rgba(255,255,255,.18);border-radius:50%;background:rgba(255,255,255,.04);color:#f4f4f1;font-size:28px;line-height:1;cursor:pointer;transition:.2s ease}
.lightbox-close:hover,.lightbox-nav:hover{background:#fff;color:#0b0d10;border-color:#fff}
.lightbox-close{right:24px}
.lightbox-nav{top:50%;transform:translateY(-50%)}
.lightbox-prev{left:24px}
.lightbox-next{right:24px}

/* SEO — ÍNDICE INTERACTIVO */
.seo{grid-template-columns:.78fr 1.22fr;min-height:600px}
.seo-copy{padding:56px 44px}
.seo .eyebrow{color:#4f5963}
.seo-copy h2{font-family:"Manrope";font-size:clamp(48px,6.1vw,86px);line-height:.9;letter-spacing:-.065em;font-weight:500;margin:18px 0}
.seo-copy p{max-width:500px;font-size:16px;line-height:1.7;color:#52606c;text-align:justify}
.seo-index{padding:56px 44px 40px;display:flex;flex-direction:column}
.seo-index-head{padding-bottom:20px}
.seo-index-head h3{font-family:"Manrope";font-size:clamp(24px,2.8vw,40px);font-weight:500;letter-spacing:-.04em;margin:7px 0 0}
.seo-list{border-top:1px solid rgba(11,13,16,.18)}
.seo-row{border-bottom:1px solid rgba(11,13,16,.18)}
.seo-row summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:52px 1fr 38px;gap:18px;align-items:center;padding:15px 0;position:relative;overflow:hidden}
.seo-row summary::-webkit-details-marker{display:none}
.seo-row summary::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,98,204,.10),rgba(255,255,255,0));transform:translateY(102%);transition:.28s ease}
.seo-row summary>*{position:relative;z-index:1}
.seo-row summary:hover::before,.seo-row[open] summary::before{transform:none}
.seo-row .n{font-size:13px;color:#7e8790}
.seo-row h4{margin:0;font-family:"Manrope";font-size:clamp(15px,1.7vw,26px);font-weight:500;letter-spacing:-.045em}
.seo-row .plus{font-size:24px;text-align:right;color:var(--blue);transition:.25s ease}
.seo-row[open] .plus{transform:rotate(45deg)}
.seo-detail{padding:6px 56px 22px 70px;color:#5e6871;font-size:15px;line-height:1.7;max-width:760px}

/* CTA */
.cta{padding:96px 44px 72px;background:radial-gradient(circle at 78% 20%,rgba(0,98,204,.20),transparent 34%),rgba(5,5,5,.90)}
.cta::after{content:"HABLEMOS";position:absolute;right:-1vw;bottom:-.12em;font-family:"Manrope";font-size:clamp(110px,18vw,270px);font-weight:600;letter-spacing:-.08em;color:rgba(255,255,255,.025);pointer-events:none}
.cta-row{width:100%;display:grid;grid-template-columns:1.2fr .8fr;gap:90px;align-items:end;position:relative;z-index:1}
.cta h2{font-size:clamp(78px,9vw,140px);line-height:.79;letter-spacing:-.055em;margin:18px 0 0;max-width:850px}
.cta p{color:#b1b5b0;line-height:1.7;max-width:500px;font-size:17px;text-align:justify}
.cta-email-row{display:flex;align-items:center;gap:16px;margin-top:24px}
.copy-email{position:relative;display:grid;place-items:center;width:52px;height:52px;border-radius:4px;border:1px solid #6c7177;background:rgba(255,255,255,.03);cursor:pointer;transition:.2s ease;flex-shrink:0}
.copy-email img{display:block;width:20px;height:20px;filter:brightness(0) invert(1);transition:.2s ease}
.copy-email:hover{background:var(--red);border-color:var(--red);transform:translateY(-1px)}
.copy-tooltip{position:absolute;left:50%;bottom:calc(100% + 10px);transform:translate(-50%,6px);padding:6px 8px;border:1px solid rgba(255,255,255,.14);border-radius:4px;background:rgba(8,10,12,.9);color:#f4f4f1;font-size:11px;white-space:nowrap;opacity:0;pointer-events:none;transition:.2s ease}
.copy-email:hover .copy-tooltip{opacity:1;transform:translate(-50%,0)}
.email-text{font-size:17px;font-weight:500;letter-spacing:-.02em;color:#f4f4f1}
.contact-links{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:30px}
.contact-btn{display:flex;align-items:center;justify-content:space-between;gap:24px;min-width:0;padding:20px;border:1px solid #3b4045;background:rgba(255,255,255,.03);font-size:15px;transition:.25s ease}
.contact-btn span:last-child{font-size:18px}
.arrow-icon{display:inline-block;width:1em;height:1em;vertical-align:middle;transform:rotate(45deg);filter:brightness(0) invert(1);transition:filter .25s ease}
.contact-btn.whatsapp{background:var(--red);border-color:var(--red);color:#f4f4f1}
.contact-btn:hover,.contact-btn.whatsapp:hover{transform:translateY(-2px)}

/* WHATSAPP FLOTANTE */
.whatsapp-float{position:fixed;right:clamp(20px,2.6vw,40px);bottom:clamp(16px,1.8vw,28px);z-index:80;width:70px;height:70px;border-radius:50%;display:grid;place-items:center;background:#25D366;color:#fff;border:1px solid #25D366;transition:.25s ease;padding:12px}
.whatsapp-float:hover{transform:translateY(-3px);background:#1fbd5a;border-color:#1fbd5a}
.whatsapp-float img{filter:brightness(0) invert(1)}

/* FOOTER */
.footer{display:flex;justify-content:space-between;align-items:flex-end;padding:24px 28px;color:#9a9d98;font-size:13px}

/* =========================================================
   LIGHT THEME
   ========================================================= */
html[data-theme="light"]{
  --bg:#dfe6ed;
  --ink:#111417;
  --line:#d9dde1;
}
html[data-theme="light"] .brand-logo{filter:none}
html[data-theme="light"] .panel{background:rgba(249,250,248,.94);color:#111417;border-color:rgba(17,20,23,.10);border-bottom-color:rgba(17,20,23,.12)}
html[data-theme="light"] .intro,
html[data-theme="light"] .seo{background:rgba(236,241,246,.96)}
html[data-theme="light"] .navlinks{color:#525960}
html[data-theme="light"] .navlinks a:hover{color:#111417}
html[data-theme="light"] .eyebrow{color:#5f6870}
html[data-theme="light"] .micro{color:#697179}
html[data-theme="light"] .hero-copy{color:#4f5962}
html[data-theme="light"] .hero-kicker::after{background:#8c949a}
html[data-theme="light"] .cta p,
html[data-theme="light"] .services-head p,
html[data-theme="light"] .service p{color:#616970}
html[data-theme="light"] .service::before{background:linear-gradient(90deg,#edf3f9,#f8f9f7)}
html[data-theme="light"] .service:hover p,
html[data-theme="light"] .service:hover .n{color:#20262b}
html[data-theme="light"] .project-cat{color:#687079}
html[data-theme="light"] .theme-toggle__track{background:#d7dde2;border-color:#b8c0c8}
html[data-theme="light"] .theme-toggle__thumb{transform:translateX(16px);background:#111417}
html[data-theme="light"] .theme-toggle__icon img{filter:brightness(0) saturate(0)}
html[data-theme="light"] .copy-email{border-color:#2a2f35;background:rgba(17,20,23,.04)}
html[data-theme="light"] .copy-email img{filter:brightness(0) saturate(0) opacity(.9)}
html[data-theme="light"] .email-text{color:#2a2f35}
html[data-theme="light"] .contact-btn:hover{background:#111417;border-color:#111417;color:#f4f4f1}
html[data-theme="light"] .contact-btn .arrow-icon{filter:brightness(0) saturate(0)}
html[data-theme="light"] .contact-btn:hover .arrow-icon,
html[data-theme="light"] .contact-btn.whatsapp .arrow-icon{filter:brightness(0) invert(1)}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media(max-width:1050px){
  .hero-title{font-size:clamp(70px,12vw,124px)}
  .stack{width:58vw;right:0;top:25%}
  .hero-bottom{grid-template-columns:1fr 1fr}
  .hero-bottom h2{grid-column:1/-1}
  .intro,.seo{grid-template-columns:1fr}
  .intro-copy,.seo-copy{border-right:0;border-bottom:1px solid rgba(11,13,16,.14)}
  .service{grid-template-columns:50px 1fr}
  .service p{display:none}
  .project-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .project:first-child{grid-row:auto}
  .project:last-child{grid-column:span 2}
  .project:last-child .project-img{aspect-ratio:21/9}
  .project:first-child .project-img{flex:none;aspect-ratio:3/2}
  .cta-row{grid-template-columns:1fr}
}
@media(max-width:900px){
  :root{--page-gutter:0px}
  .nav-actions{gap:12px}
  .navlinks{display:none}
  .hero{min-height:auto}
  .intro,.seo{min-height:0}
}
@media(max-width:700px){
  .hero-copy{font-size:17px}
}
@media(max-width:680px){
  .hero-stage{min-height:540px;padding:54px 18px 34px}
  .hero-title{font-size:17vw}
  .hero-title .indent{margin-left:0}
  .hero-copy{max-width:88%;margin-top:30px}
  .stack{width:92%;height:300px;right:-12%;top:auto;bottom:0}
  .brand-mark-image{opacity:.10}
  .hero-bottom,.services-head,.project-strip,.contact-links{grid-template-columns:1fr}
  .hero-bottom .micro:nth-child(2){text-align:right}
  .intro-copy,.services,.seo-copy{padding-left:18px;padding-right:18px}
  .intro-copy{padding-bottom:22px}
  .seo-copy{padding-bottom:24px}
  .seo-copy p{margin-bottom:0}
  .service-list{margin-top:28px}
  .projects-top{padding:48px 18px 28px}
  .project:first-child,.project:last-child{grid-column:auto}
  .project:last-child .project-img{aspect-ratio:3/2}
  .project-strip{padding:0 18px 36px}
  .seo-index{padding:24px 18px}
  .seo-row h4{font-size:22px}
  .seo-detail{padding-left:50px}
  .cta{padding:72px 18px 64px}
  .cta h2{font-size:19vw}
  .footer{align-items:flex-start;gap:20px;flex-direction:column}
}

/* =========================================================
   MOVIMIENTO REDUCIDO
   ========================================================= */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  .intro-art:hover img,.project:hover img{transform:none}
}