/* =========================================================================
   Red 5G — Sistema visual (LIGHT por default, DARK en hero + footer)
   Fuentes self-host, sin dependencias externas.
   ========================================================================= */

@font-face{font-family:'Manrope';src:url('../fonts/manrope-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Manrope';src:url('../fonts/manrope-600.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Manrope';src:url('../fonts/manrope-700.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Manrope';src:url('../fonts/manrope-800.woff2') format('woff2');font-weight:800;font-style:normal;font-display:swap}

:root{
  --red:        #E2231A;
  --red-600:    #B51A13;
  --red-soft:   rgba(226,35,26,.08);
  --ink:        #0F0F0F;
  --ink-2:      #1A1A1A;
  --ink-light:  #5A5A5A;
  --gray:       #8A8A8A;
  --gray-2:     #B5B5B5;
  --line:       #EDEDED;
  --line-2:     #E3E3E3;
  --bg:         #FFFFFF;
  --bg-2:       #F7F7F7;
  --bg-3:       #F0F0F0;
  --dark:       #0F0F0F;
  --dark-2:     #151515;
  --dark-card:  #1A1A1A;

  --font-display: 'Manrope', -apple-system, Segoe UI, Roboto, sans-serif;
  --font-body:    'Manrope', -apple-system, Segoe UI, Roboto, sans-serif;

  --ease: .25s cubic-bezier(.4,0,.2,1);
  --shadow-sm: 0 2px 8px rgba(15,15,15,.06);
  --shadow-md: 0 12px 32px rgba(15,15,15,.08);
  --shadow-lg: 0 24px 60px rgba(15,15,15,.12);

  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 24px; --r-pill: 999px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);font-size:16px;line-height:1.6;color:var(--ink);
  background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,video{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:100px 0;position:relative}

/* Accesibilidad */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--red);color:#fff;padding:10px 16px;z-index:1000;border-radius:0 0 8px 0;font-weight:700}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--red);outline-offset:2px}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* =========================================================================
   Fondo sutil con circuitos (decoración de páginas light)
   ========================================================================= */
.circuit-bg{position:relative}
.circuit-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(to right, rgba(15,15,15,.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15,15,15,.03) 1px, transparent 1px);
  background-size:80px 80px;
  mask-image:radial-gradient(ellipse at center, black 40%, transparent 80%);
}

/* =========================================================================
   NAV PILL (flotante, centrada)
   ========================================================================= */
.navbar{position:fixed;top:18px;left:0;right:0;z-index:100;display:flex;justify-content:center;pointer-events:none}
.nav-inner{
  pointer-events:auto;
  display:flex;align-items:center;gap:6px;
  background:rgba(26,26,26,.92);backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-radius:var(--r-pill);padding:6px 6px 6px 22px;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 12px 36px rgba(0,0,0,.22);
  max-width:calc(100vw - 32px);
}
.nav-logo{display:flex;align-items:center;padding-right:12px;border-right:1px solid rgba(255,255,255,.1);margin-right:6px}
.nav-logo img{height:34px;width:auto}
.nav-links{display:flex;gap:4px}
.nav-links a{color:rgba(255,255,255,.78);padding:10px 16px;border-radius:var(--r-pill);font-size:14px;font-weight:500;transition:var(--ease);white-space:nowrap}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;background:var(--red);color:#fff;border-radius:var(--r-pill);font-size:13px;font-weight:700;transition:var(--ease);margin-left:6px}
.nav-cta:hover{background:var(--red-600);transform:translateY(-1px)}
.hamburger{display:none;width:40px;height:40px;border-radius:var(--r-pill);background:var(--red);align-items:center;justify-content:center;gap:3px;flex-direction:column;margin-left:6px}
.hamburger span{display:block;width:16px;height:2px;background:#fff;border-radius:2px;transition:var(--ease)}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.mobile-nav{display:none;position:fixed;top:80px;left:16px;right:16px;background:#1A1A1A;border-radius:var(--r-lg);padding:16px;flex-direction:column;gap:4px;z-index:99;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.08)}
.mobile-nav.open{display:flex}
.mobile-nav a{color:rgba(255,255,255,.85);padding:12px 16px;border-radius:var(--r-md);font-size:15px;font-weight:500}
.mobile-nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.mobile-nav .nav-cta{margin:8px 0 0;text-align:center;justify-content:center}

/* =========================================================================
   HERO (DARK, video de fondo)
   ========================================================================= */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden;background:#000}
.hero-video{position:absolute;inset:0;z-index:0}
.hero-video video{width:100%;height:100%;object-fit:cover}
.hero-video::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.35) 0%,rgba(0,0,0,.55) 100%)}
.hero-content{position:relative;z-index:1;max-width:920px;padding:140px 32px 60px}
.hero-content h1{font-family:var(--font-display);font-size:clamp(34px,5.5vw,72px);font-weight:800;line-height:1.1;letter-spacing:-.02em}
.hero-content h1 span{display:block}
.hero-content .tagline{margin-top:28px;font-size:13px;font-weight:500;letter-spacing:3px;text-transform:uppercase;color:rgba(255,255,255,.85)}

/* Banda roja "Programando el futuro, hoy." */
.hero-band{background:var(--red);color:#fff;padding:16px 20px;text-align:center;font-weight:500;letter-spacing:3px;font-size:13px;text-transform:uppercase;position:relative;z-index:2}

/* =========================================================================
   QUUO (LIGHT, mockup flotante con tarjeta banking)
   ========================================================================= */
.quuo{background:var(--bg);position:relative;padding:120px 0}
.quuo .container{position:relative;z-index:2}
.quuo-inner{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.quuo-text h2{font-family:var(--font-display);font-size:clamp(44px,5.5vw,72px);font-weight:800;line-height:1.05;margin-bottom:24px;letter-spacing:-.02em}
.quuo-text h2 span{color:var(--red)}
.quuo-text p{font-size:17px;color:var(--ink-light);line-height:1.7;max-width:460px;text-wrap:pretty}
.quuo-text p + p{margin-top:14px}
.quuo-phones{position:relative;width:100%;aspect-ratio:1/1;max-width:560px;margin:0 auto;display:block}
.quuo-phones img{position:absolute;display:block}

/* Card blanca (decorativa) — detrás a la izquierda */
.quuo-white-card{
  width:52%;left:0;top:8%;z-index:1;
  filter:drop-shadow(0 20px 40px rgba(20,40,80,.08));
}

/* Phone principal — GRANDE y centrado */
.quuo-phone{
  width:58%;left:22%;top:4%;z-index:3;
  filter:drop-shadow(0 30px 50px rgba(0,0,0,.15));
}

/* Card "Crédito" — abajo a la derecha */
.quuo-credito{
  width:30%;right:0;bottom:6%;z-index:4;
  filter:drop-shadow(0 20px 40px rgba(20,40,80,.1));
}

/* Cubo 3D — arriba a la derecha */
.quuo-cube{
  width:22%;right:4%;top:0;z-index:5;
  filter:drop-shadow(0 16px 30px rgba(31,58,133,.25));
}

@media (max-width:768px){
  .quuo-phones{max-width:400px}
}
@media (max-width:480px){
  .quuo-phones{max-width:320px}
}

@keyframes float-a{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-14px) rotate(.4deg)}}
@keyframes float-b{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-10px) rotate(.6deg)}}
@keyframes float-c{0%,100%{transform:translateY(0) rotate(1deg)}50%{transform:translateY(-18px) rotate(-.5deg)}}
@media (prefers-reduced-motion: reduce){
  .quuo-phone-main,.quuo-phone-back,.quuo-card-float,.quuo-cube{animation:none}
}
/* Dot accent flotante */
.quuo::before{
  content:"";position:absolute;top:10%;right:-6%;width:140px;height:140px;
  background:radial-gradient(circle,var(--red) 0,var(--red) 30%,transparent 31%);
  opacity:.08;border-radius:50%;
}

/* =========================================================================
   SERVICIOS — TIMELINE vertical con línea roja central
   ========================================================================= */
.services{background:var(--bg);padding:100px 0 120px;position:relative;overflow:hidden}
.services::before{
  /* trama sutil */
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.4;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(226,35,26,.04), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(226,35,26,.03), transparent 40%),
    linear-gradient(to right, rgba(15,15,15,.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15,15,15,.025) 1px, transparent 1px);
  background-size:auto,auto,100px 100px,100px 100px;
  mask-image:radial-gradient(ellipse at center, black 30%, transparent 85%);
}
.services-header{text-align:center;max-width:720px;margin:0 auto 70px;position:relative;z-index:2}
.services-header h2{font-family:var(--font-display);font-size:clamp(44px,6vw,76px);font-weight:800;line-height:1.05;margin-bottom:14px;letter-spacing:-.02em}
.services-header p{font-size:19px;color:var(--ink-light)}

/* Línea roja central del timeline */
.timeline{position:relative;max-width:1100px;margin:0 auto;padding:0 32px}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;
  background:var(--red);
  transform:translateX(-50%);
}
.timeline-row{position:relative;display:grid;grid-template-columns:1fr 80px 1fr;gap:0;margin-bottom:100px;align-items:center}
.timeline-row:last-child{margin-bottom:0}
.timeline-dot{
  grid-column:2;justify-self:center;
  width:18px;height:18px;border-radius:50%;background:var(--red);
  border:4px solid var(--bg);z-index:2;position:relative;
  box-shadow:0 0 0 2px var(--red);
}
.timeline-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 34px;box-shadow:var(--shadow-sm);max-width:420px;transition:var(--ease);
  position:relative;
}
.timeline-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:rgba(226,35,26,.2)}
.timeline-card .num{font-family:var(--font-display);font-size:13px;font-weight:700;color:var(--red);letter-spacing:3px;margin-bottom:10px;display:block}
.timeline-card h3{font-family:var(--font-display);font-size:22px;font-weight:700;margin-bottom:12px;line-height:1.2}
.timeline-card p{color:var(--ink-light);font-size:15px;line-height:1.7;margin-bottom:12px}
.timeline-card ul{margin-top:8px;display:grid;gap:6px}
.timeline-card li{font-size:14px;color:var(--ink-light);padding-left:18px;position:relative;line-height:1.5}
.timeline-card li::before{content:"•";color:var(--red);font-weight:700;position:absolute;left:6px;top:-1px}
.timeline-illust{display:flex;align-items:center;justify-content:center;padding:20px}
.timeline-illust img{max-width:100%;width:300px;height:auto}
/* alternancia */
.timeline-row.left  .timeline-illust{grid-column:1}
.timeline-row.left  .timeline-card  {grid-column:3;justify-self:start}
.timeline-row.right .timeline-card  {grid-column:1;justify-self:end}
.timeline-row.right .timeline-illust{grid-column:3}

/* =========================================================================
   STACK TECNOLÓGICO (LIGHT)
   ========================================================================= */
.stack{background:var(--bg-2);padding:110px 0}
.stack-header{text-align:center;max-width:720px;margin:0 auto 56px}
.stack-header .eyebrow{display:inline-block;font-family:var(--font-display);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:3px;color:var(--red);margin-bottom:20px;padding:6px 14px;border:1px solid rgba(226,35,26,.35);border-radius:var(--r-pill);background:var(--red-soft)}
.stack-header h2{font-family:var(--font-display);font-size:clamp(32px,4.2vw,52px);font-weight:800;line-height:1.1;margin-bottom:18px;letter-spacing:-.02em}
.stack-header p{color:var(--ink-light);font-size:17px;line-height:1.7;text-wrap:pretty}
.stack-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.stack-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 20px;text-align:center;transition:var(--ease)}
.stack-card:hover{border-color:rgba(226,35,26,.3);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.stack-logo{width:56px;height:56px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center}
.stack-logo img{width:100%;height:100%;object-fit:contain;display:block}
.stack-card h3{font-family:var(--font-display);font-size:15px;font-weight:700;margin-bottom:4px}
.stack-card .stack-cat{font-size:12px;color:var(--gray);margin:0}

/* =========================================================================
   PROYECTOS (DARK — como el bloque de casos de éxito del original)
   ========================================================================= */
.projects{background:var(--dark);color:#fff;padding:110px 0}
.projects-header{text-align:center;margin-bottom:40px}
.projects-header h2{font-family:var(--font-display);font-size:clamp(44px,6vw,76px);font-weight:800;line-height:1.05;margin-bottom:8px;letter-spacing:-.02em}
.projects-header p{font-size:19px;color:rgba(255,255,255,.65)}
.projects-tabs{display:flex;justify-content:center;gap:0;margin:0 auto 60px;background:rgba(255,255,255,.06);border-radius:var(--r-pill);padding:4px;width:fit-content}
.projects-tabs .tab-btn{padding:12px 32px;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:rgba(255,255,255,.65);transition:var(--ease)}
.projects-tabs .tab-btn.active{background:var(--red);color:#fff}
.tab-panel{display:none}
.tab-panel.active{display:block}
.projects-scroll{display:none} /* legacy — ya no se usa */

/* Carrusel de proyectos */
.proj-carousel{position:relative;max-width:1180px;margin:0 auto;padding:0 72px}
.proj-viewport{overflow:hidden;border-radius:var(--r-lg)}
.proj-track{display:flex;transition:transform .6s cubic-bezier(.65,0,.35,1);will-change:transform}
.proj-slide{min-width:100%;display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:center;padding:40px 20px}
.proj-copy{max-width:440px}
.proj-kicker{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--red);margin-bottom:16px}
.proj-copy h3{font-family:var(--font-display);font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.1;letter-spacing:-.02em;margin-bottom:18px;color:#fff}
.proj-copy p{font-size:16px;line-height:1.75;color:rgba(255,255,255,.72)}
.proj-media{position:relative;display:flex;align-items:center;justify-content:center}
.proj-media img{max-width:100%;max-height:520px;width:auto;height:auto;display:block;filter:drop-shadow(0 30px 60px rgba(0,0,0,.5))}
.proj-media.phone img{max-height:560px;max-width:280px}

.proj-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;background:transparent;border:none;color:var(--red);display:grid;place-items:center;cursor:pointer;z-index:2;transition:var(--ease)}
.proj-arrow:hover{background:rgba(226,35,26,.12)}
.proj-arrow svg{width:28px;height:28px}
.proj-arrow.prev{left:8px}
.proj-arrow.next{right:8px}

.proj-dots{display:flex;justify-content:center;gap:10px;margin-top:24px}
.proj-dots button{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.2);border:none;cursor:pointer;padding:0;transition:var(--ease)}
.proj-dots button.active{background:var(--red);width:24px;border-radius:4px}

@media (max-width:768px){
  .proj-carousel{padding:0 44px}
  .proj-slide{grid-template-columns:1fr;gap:28px;padding:20px 8px;text-align:center}
  .proj-copy{max-width:none;margin:0 auto}
  .proj-arrow{width:36px;height:36px}
  .proj-arrow svg{width:22px;height:22px}
  .proj-arrow.prev{left:0}
  .proj-arrow.next{right:0}
}

/* =========================================================================
   CLIENTES (LIGHT, marquee)
   ========================================================================= */
.clients{background:var(--bg);padding:90px 0;overflow:hidden}
.clients-header{text-align:center;margin-bottom:50px}
.clients-header h2{font-family:var(--font-display);font-size:clamp(32px,4vw,48px);font-weight:800;letter-spacing:-.02em}
.clients-header p{color:var(--ink-light);margin-top:8px}
.marquee{position:relative;overflow:hidden;mask-image:linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%)}
.marquee + .marquee{margin-top:32px}
.marquee-track{display:flex;gap:70px;align-items:center;animation:scroll 45s linear infinite;width:max-content;will-change:transform}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee.reverse .marquee-track{animation-direction:reverse;animation-duration:50s}
.marquee-track img{height:42px;width:auto;opacity:.55;filter:grayscale(1);transition:var(--ease);flex-shrink:0}
.marquee-track img:hover{opacity:1;filter:grayscale(0)}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* =========================================================================
   TESTIMONIOS (LIGHT, card blanca + flechas punteadas)
   ========================================================================= */
.testimonials{background:var(--bg-2);padding:110px 0;position:relative}
.test-header{text-align:center;margin-bottom:50px}
.test-header h2{font-family:var(--font-display);font-size:clamp(36px,5vw,56px);font-weight:800;letter-spacing:-.02em}
.test-stage{position:relative;max-width:780px;margin:0 auto;padding:0 80px}
.test-slider{overflow:hidden;border-radius:var(--r-xl)}
.test-track{display:flex;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.test-slide{min-width:100%}
.test-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:48px 56px;box-shadow:var(--shadow-sm);
}
.test-box blockquote{font-size:17px;color:var(--ink);line-height:1.75;margin-bottom:28px;font-style:italic;font-weight:500;text-wrap:pretty}
.test-author{display:flex;align-items:center;gap:16px}
.test-author .avatar{width:52px;height:52px;border-radius:50%;object-fit:cover;display:block;border:2px solid #fff;box-shadow:0 0 0 2px var(--red)}
.test-author strong{display:block;font-family:var(--font-display);font-size:15px;font-weight:700;color:var(--ink)}
.test-author span{font-size:13px;color:var(--ink-light)}

.test-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:56px;height:56px;border-radius:50%;
  border:2px dashed var(--red);background:transparent;color:var(--red);
  display:flex;align-items:center;justify-content:center;transition:var(--ease);
}
.test-arrow.prev{left:0}
.test-arrow.next{right:0}
.test-arrow:hover{background:var(--red);color:#fff}
.test-arrow svg{width:18px;height:18px}
.test-dots{display:flex;justify-content:center;gap:8px;margin-top:32px}
.test-dots button{width:8px;height:8px;border-radius:50%;background:var(--gray-2);padding:0;transition:var(--ease)}
.test-dots button.active{background:var(--red);width:28px;border-radius:var(--r-pill)}

/* =========================================================================
   TECH BAR (reconocimientos)
   ========================================================================= */
.tech{background:var(--bg-2);padding:50px 0 60px;border-top:1px solid var(--line)}
.tech-logos{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:36px 56px}
.tech-logos img{height:60px;width:auto;max-width:130px;object-fit:contain;opacity:.9;transition:var(--ease)}
.tech-logos img:hover{opacity:1;transform:translateY(-2px)}

/* =========================================================================
   FOOTER (DARK)
   ========================================================================= */
.footer{background:var(--dark);color:#fff;padding:80px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand img{height:40px;margin-bottom:20px;width:auto}
.footer-brand p{color:rgba(255,255,255,.6);font-size:14px;line-height:1.7}
.footer-col h4{font-family:var(--font-display);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:2.5px;margin-bottom:20px;color:#fff}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:14px;padding:6px 0;transition:var(--ease)}
.footer-col a:hover{color:var(--red)}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;padding:0;transition:var(--ease)}
.footer-social a:hover{background:var(--red);transform:translateY(-2px)}
.footer-social svg{width:15px;height:15px;fill:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;text-align:center;color:rgba(255,255,255,.5);font-size:13px}

/* =========================================================================
   Páginas legales (light)
   ========================================================================= */
.page-hero{padding:160px 0 50px;text-align:center;background:var(--bg-2);border-bottom:1px solid var(--line)}
.page-hero h1{font-family:var(--font-display);font-size:clamp(32px,5vw,52px);font-weight:800;letter-spacing:-.02em}
.page-hero p{color:var(--ink-light);margin-top:12px;font-size:16px}
.legal{padding:60px 0 100px}
.legal .container{max-width:780px}
.legal h2{font-family:var(--font-display);font-size:22px;font-weight:700;margin:40px 0 16px;color:var(--ink)}
.legal p{color:var(--ink-light);font-size:15px;margin-bottom:14px;line-height:1.8}
.legal a{color:var(--red);text-decoration:underline;text-underline-offset:3px}
.legal strong{color:var(--ink);font-weight:700}
.legal code{background:var(--bg-2);padding:2px 6px;border-radius:4px;font-size:13px;font-family:ui-monospace,SFMono-Regular,monospace}

/* =========================================================================
   Reveal on scroll
   ========================================================================= */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width:992px){
  .nav-links,.nav-cta{display:none}
  .hamburger{display:flex}
  .quuo-inner{grid-template-columns:1fr;gap:60px}
  .quuo-phones{max-width:460px;margin:0 auto;width:100%}
  .timeline::before{left:24px}
  .timeline-row,.timeline-row.left,.timeline-row.right{grid-template-columns:48px 1fr;gap:0;margin-bottom:56px}
  .timeline-dot{grid-column:1}
  .timeline-card,.timeline-row.left .timeline-card,.timeline-row.right .timeline-card{grid-column:2;justify-self:stretch;max-width:none}
  .timeline-illust,.timeline-row.left .timeline-illust,.timeline-row.right .timeline-illust{display:none}
  .stack-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .services-header h2,.projects-header h2{font-size:clamp(38px,6vw,56px)}
  .projects{padding:90px 0}
  .testimonials{padding:90px 0}
}
@media (max-width:768px){
  .section{padding:70px 0}
  .quuo{padding:80px 0}
  .services{padding:70px 0 90px}
  .hero-content{padding:120px 20px 50px}
  .hero-band{font-size:11px;letter-spacing:2px;padding:14px 20px}
  .test-stage{padding:0 10px}
  .test-arrow{top:auto;bottom:-70px;transform:none}
  .test-arrow.prev{left:calc(50% - 70px)}
  .test-arrow.next{right:calc(50% - 70px)}
  .test-dots{margin-top:80px}
  .test-box{padding:32px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-brand{grid-column:1 / -1}
  .container{padding:0 20px}
  .stack-grid{grid-template-columns:repeat(2,1fr)}
  .timeline-card{padding:26px 24px}
  .timeline-card h3{font-size:20px}
  .services-header{margin-bottom:50px}
  .projects-tabs{width:100%;overflow-x:auto;justify-content:flex-start;padding:4px;scrollbar-width:none}
  .projects-tabs::-webkit-scrollbar{display:none}
  .projects-tabs .tab-btn{flex-shrink:0;padding:10px 20px;font-size:13px}
  .test-header h2{font-size:clamp(30px,5vw,40px)}
}
@media (max-width:480px){
  .nav-logo img{height:22px}
  .nav-inner{padding:5px 5px 5px 16px}
  .stack-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .hero-content{padding:110px 18px 40px}
  .hero-content .tagline{letter-spacing:2px;font-size:12px}
  .quuo-text h2,.services-header h2,.projects-header h2{font-size:34px}
  .container{padding:0 16px}
  .test-box{padding:28px 20px}
  .test-quote{font-size:17px}
  .proj-carousel{padding:0 36px}
  .proj-arrow{width:32px;height:32px}
  .timeline-card{padding:22px 20px}
}

/* Dotted circle decoration (usado en varios sitios para acompañar el timeline) */
.dot-circle{width:44px;height:44px;border:2px dashed var(--red);border-radius:50%;display:inline-block}