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@media(max-width:850px){.header-inner{min-height:80px}.menu-toggle{display:block}.navigation{display:none;position:absolute;left:0;right:0;top:100%;background:#fbfaf6;padding:12px 32px 22px;border-bottom:1px solid var(--line);box-shadow:0 12px 20px #112a3610}.navigation.open{display:flex;flex-direction:column;gap:0;align-items:stretch}.navigation>a{padding:15px 0;border-bottom:1px solid var(--line)}.navigation .nav-cta{margin-top:12px;border-bottom:0}.hero-shade{background:linear-gradient(90deg,#0c2635ee,#0b2639bd 60%,#09213366)}.hero-image{object-position:67% center}.hero h1{font-size:62px}.section{padding-block:70px}.section-heading{gap:35px;align-items:start}.section-heading>p{max-width:310px;font-size:12px}h2{font-size:39px}.sector-tabs{gap:15px}.sector-panel{grid-template-columns:1fr;gap:35px}.sector-copy>p{max-width:600px;min-height:0}.sector-copy h3{font-size:36px}.supervision-layout{grid-template-columns:1fr;gap:40px}.supervision-intro{max-width:600px}.experience-grid{gap:23px}.experience-grid h3{font-size:21px}.process-grid{gap:23px}.process-grid p{font-size:11px}.contact{grid-template-columns:1fr;gap:35px}.contact-intro>p:not(.eyebrow){max-width:540px}.brief-card{max-width:620px;width:100%}.contact-phone{margin-top:22px}.faq-section{grid-template-columns:1fr;gap:30px}.footer-main{flex-wrap:wrap}.footer-main>p{font-size:19px}.footer-main>a:last-child{margin-left:auto}.service-end{font-size:0;gap:0}.service-end b{font-size:20px}.approach-grid{padding-block:27px}.approach-grid>div{padding-right:18px}.approach-grid>div+div{padding-left:18px}.approach-grid>div+div span{left:18px}.approach-grid strong{font-size:11px}.approach-grid p{font-size:9px}.approach-grid strong,.approach-grid p{margin-left:23px}}
@media(max-width:540px){.shell{width:calc(100% - 40px)}.header-inner{min-height:75px;gap:15px}.brand img{width:42px;height:42px}.brand b{font-size:25px}.brand small{font-size:6.7px;letter-spacing:.8px}.hero-inner{min-height:635px;padding-block:50px 80px}.hero .eyebrow{font-size:7px;letter-spacing:1.2px;gap:9px;margin-bottom:27px}.hero .line{width:23px}.hero h1{font-size:49px;letter-spacing:-2px;margin-bottom:26px}.hero-description{font-size:13px;line-height:1.8;max-width:340px}.hero-actions{gap:22px}.button{min-height:46px;padding:0 18px;font-size:10px;gap:22px}.hero-link{font-size:10px}.hero-sectors{gap:9px;font-size:7px;letter-spacing:1px;margin-top:38px}.hero-footer-inner{height:55px;font-size:7px;letter-spacing:1px;gap:16px}.hero-footer a{font-size:8px}.hero-footer a span{margin-left:10px}.approach-grid{grid-template-columns:1fr;gap:21px;padding-block:27px}.approach-grid>div,.approach-grid>div+div{padding:0 0 0 0;border:0}.approach-grid>div+div span{left:0}.approach-grid strong,.approach-grid p{margin-left:29px}.approach-grid strong{font-size:12px}.approach-grid p{font-size:10px;margin-top:5px}.section{padding-block:58px}.section-heading{flex-direction:column;gap:22px;margin-bottom:33px}.section-heading>p{max-width:none;font-size:12px;line-height:1.9}.eyebrow{font-size:8px;letter-spacing:1.6px}.section-heading .eyebrow{margin-bottom:16px}h2{font-size:35px;letter-spacing:-1px;line-height:1.15}.service-row{gap:12px;padding-block:23px;align-items:start}.service-number{font-size:9px;min-width:27px;padding-top:4px}.service-body strong{font-size:18px;line-height:1.3;letter-spacing:-.4px;margin-bottom:10px}.service-body>span{font-size:11px;line-height:1.8}.service-end b{width:30px;height:30px;font-size:17px}.sector-tabs{gap:8px;margin-bottom:30px}.sector-tabs button{font-size:11px;padding:0 10px 16px}.sector-copy h3{font-size:32px}.sector-copy>p{font-size:12px}.sector-copy ul{font-size:11px}.text-button{font-size:11px;max-width:100%;line-height:1.7}.supervision-layout{gap:35px}.supervision-intro{font-size:12px}.control-list summary{font-size:13px;gap:12px;padding-block:21px}.control-list details p{font-size:11px;margin-left:32px}.experience-grid{grid-template-columns:1fr;gap:24px}.experience-grid article{padding-top:20px}.experience-grid h3{font-size:25px;margin-block:17px 12px}.experience-grid article p{max-width:none;margin-bottom:0}.infrastructure-note{padding:20px;gap:12px;align-items:start;flex-wrap:wrap}.infrastructure-note .label{flex:0 0 100%;font-size:8px}.infrastructure-note p{font-size:11px}.infrastructure-note>span:last-child{font-size:23px}.process-grid{grid-template-columns:1fr 1fr;gap:29px 22px}.process-grid h3{margin-top:22px;font-size:17px}.process-grid p{font-size:11px}.contact{gap:28px}.contact-intro>p:not(.eyebrow){font-size:12px}.contact-phone{font-size:27px}.brief-card{padding:22px 18px;box-shadow:6px 6px 0 #e8e9e1}.brief-top{font-size:7px;letter-spacing:.7px;margin-bottom:24px}.brief-top>span:last-child{font-size:8px}.choice-grid{gap:8px}.choice-grid label>span{padding:16px 10px 15px 29px;min-height:115px}.choice-grid input{left:9px;top:14px}.choice-grid strong{font-size:11px}.choice-grid small{font-size:8px}.choice-list label{font-size:11px;padding:13px;gap:10px}legend{font-size:24px}.form-actions{gap:15px}.field{font-size:11px}.brief-card h3{font-size:26px}.form-note{font-size:9px}.faq-section{padding-bottom:58px;gap:26px}.faq-section h2{font-size:32px}.faq-section summary{font-size:11px}.footer{padding-top:35px}.footer-main{flex-direction:column;align-items:start;gap:25px;padding-bottom:30px}.footer-main>p{font-size:23px}.footer-main>a:last-child{margin-left:0;font-size:10px}.footer-bottom{flex-direction:column;gap:9px;font-size:8px}.navigation{padding-inline:20px}dialog{padding:24px 20px}dialog h2{font-size:30px}dialog p{font-size:12px}dialog ul{font-size:11px}}
@media(max-width:360px){.shell{width:calc(100% - 32px)}.brand small{font-size:5.9px;letter-spacing:.6px}.brand b{font-size:24px}.brand img{width:38px;height:38px}.brand{gap:6px}.menu-toggle{width:38px;height:38px;padding:9px}.hero h1{font-size:43px}.hero-actions{gap:16px}.hero-actions .button{padding:0 15px;gap:14px}.hero-sectors{font-size:6px;gap:8px}.hero-description{font-size:12px}.hero .eyebrow{font-size:6px}.hero-footer-inner{font-size:6px;gap:10px}.hero-footer a{font-size:7px}.section-heading h2,h2{font-size:32px}.brief-card{padding:20px 15px}.brief-top{font-size:6px}.service-body strong{font-size:16px}.service-end b{width:26px;height:26px}.service-number{min-width:24px}.choice-grid strong{font-size:10px}.choice-grid label>span{padding-left:26px}.contact-phone{font-size:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media print{.header,.hero,.approach-strip,.services,.sectors,.supervision,.experience,.process,.faq-section,.footer,.contact-intro,.brief-top,.form-note,.result-actions,#sendBrief{display:none!important}.contact{display:block;padding:0}body{background:white}.brief-card{border:0;box-shadow:none}#briefSummary{max-height:none}}

/* Portada y galería de servicios */
.hero-frames,
.hero-frame {
  position: absolute;
  inset: 0;
}

.hero-frame {
  opacity: 0;
  transition: opacity 650ms ease;
}

.hero-frame.is-active { opacity: 1; }

.hero-frame.is-active .hero-image {
  animation: hero-zoom 4s ease-in-out both;
}

@keyframes hero-zoom {
  0%, 100% { transform: scale(1); }
  55% { transform: scale(1.09); }
}

.hero-shade {
  background: linear-gradient(90deg, #06182ef2 0%, #071f3fdb 28%, #08254e70 52%, transparent 76%),
              linear-gradient(0deg, #061a36eb 0%, transparent 32%);
}

.hero-inner { padding-bottom: 126px; }
.hero-gallery {
  position: absolute;
  bottom: 72px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: end;
  justify-content: flex-end;
  gap: 18px;
  pointer-events: none;
}

.hero-gallery-caption {
  display: grid;
  gap: 4px;
  color: white;
  text-align: right;
  font-size: 14px;
  font-weight: 700;
  text-shadow: 0 1px 5px #06182e;
}

.hero-gallery-caption .image-note {
  font-size: 9px;
  font-weight: 400;
  color: #d3e8ff;
}

.hero-controls {
  display: flex;
  gap: 5px;
  padding: 4px;
  border: 1px solid #b7e4ff5c;
  border-radius: 8px;
  background: #071d3ae8;
  pointer-events: auto;
}

.hero-controls button {
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  color: #fff;
  background: transparent;
  font-size: 12px;
  font-weight: 700;
}

.hero-controls button:hover { background: #215085; }
.hero-controls button[aria-current] { background: #62f5ea; color: #071d3a; }
.hero-controls button:focus-visible { outline: 2px solid #ffac32; outline-offset: -2px; }

.approach-strip {
  color: #fff;
  background: linear-gradient(112deg, #073f9a, #0058b9 55%, #00646b);
  border-bottom: 0;
}

.approach-grid > div + div { border-color: #fff6; }
.approach-grid span { color: #ffcc66; font-weight: 700; }
.approach-grid p { color: #e4f7ff; }

.service-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 28px);
  border: 0;
}

.service-row {
  --card-accent: #075dde;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 0 0 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 4px solid var(--card-accent);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 12px 28px #0b254611;
}

.service-row[data-service="construccion"] { --card-accent: #e87810; }
.service-row[data-service="supervision"] { --card-accent: #008880; }

.service-row .concept-media { border-radius: 0; }
.service-row .service-number {
  padding: 5px 8px;
  position: absolute;
  top: 12px;
  left: 13px;
  color: #fff;
  background: #071d3aeb;
  border-radius: 3px;
  min-width: 0;
}

.service-row .service-body { padding: 20px 18px 12px; }
.service-row .service-end {
  justify-content: space-between;
  margin: 0 18px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  font-weight: 700;
}

.sector-tabs { border-bottom-color: #8fbfbf; }
.sector-tabs button { color: #205361; }
.sector-tabs button[aria-selected=true] {
  border-bottom: 3px solid #0055c7;
  color: #0055c7;
}

.sector-visual figure {
  margin: 0;
  padding: 10px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 9px 9px 0 #69d7cc;
}

.sector-visual figcaption {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 4px 2px;
  font-size: 10px;
  color: var(--muted);
}

.sector-visual figcaption span { color: #0055c7; font-weight: 700; }
.sector-copy > p { color: #254456; }

.concept-media {
  display: block;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border-radius: 7px;
  background: #d4e5f4;
}

.concept-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms ease;
}

.concept-media.is-in-view img,
.sector-visual figure:not([hidden]) img { animation: concept-reveal 900ms ease-out; }
.concept-media:hover img,
.service-row:hover .concept-media img,
.service-row:focus-visible .concept-media img { transform: scale(1.07); }

@keyframes concept-reveal {
  from { transform: scale(1.13); }
}

.supervision { background: linear-gradient(120deg, #071d3a, #102d6e 64%, #04576e); }
.supervision .concept-media { margin-top: 27px; aspect-ratio: 16 / 9; }
.experience-grid article > .concept-media { margin-bottom: 17px; }
.experience-grid article > span:not(.concept-media) { color: #0055c7; }
.process-grid li > .concept-media { margin-bottom: 12px; }
.process-grid li > .process-number { color: #0055c7; }
.process-grid h3 { margin-top: 14px; }

@media (max-width: 850px) {
  .hero-shade {
    background: linear-gradient(90deg, #06182ef0, #071f3f96 59%, #08254e25),
                linear-gradient(0deg, #061a36ed, transparent 33%);
  }
  .hero-gallery { gap: 10px; }
  .service-row .service-body { padding-inline: 14px; }
  .service-row .service-end { margin-inline: 14px; }
}

@media (max-width: 620px) {
  .hero-gallery { left: 50%; bottom: 68px; flex-direction: column; align-items: start; }
  .hero-gallery-caption { text-align: left; }
  .hero-gallery-caption .image-note { order: 1; }
  .hero-inner { padding-bottom: 156px; }
  .hero-shade {
    background: linear-gradient(90deg, #06182edb, #071f3f84 78%, #08254e45),
                linear-gradient(0deg, #061a36f5, transparent 35%);
  }
  .service-list { grid-template-columns: 1fr; gap: 18px; }
  .service-row .concept-media { aspect-ratio: 16 / 9; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-frame,
  .concept-media img { transition: none; }
  .hero-frame.is-active .hero-image,
  .concept-media.is-in-view img,
  .sector-visual figure:not([hidden]) img { animation: none; }
  .concept-media:hover img,
  .service-row:hover .concept-media img,
  .service-row:focus-visible .concept-media img { transform: none; }
}