/* =========================================================
   TOKENS
========================================================= */
:root{
  --concrete: #EAE7E0;
  --concrete-2: #DCD7CC;
  --ink: #12233B;
  --ink-2: #1B3252;
  --steel: #55606B;
  --line: #C7C2B8;
  --line-dark: rgba(234,231,224,0.16);
  --signal: #E8551F;
  --signal-dark: #C74312;
  --paper: #FFFFFF;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --container: 1180px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--concrete);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
.mono{ font-family: var(--font-mono); }

h1,h2,h3{ font-family: var(--font-display); margin:0; color: var(--ink); font-weight:600; }
p{ margin: 0 0 1rem; color: var(--steel); }
ul{ list-style:none; margin:0; padding:0; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior:auto !important; }
}

:focus-visible{
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.section-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
.section{ padding: 96px 0; }

.kicker{
  color: var(--signal);
  letter-spacing: 3px;
  font-size: 12px;
  margin-bottom: 14px;
  display:block;
}
.section-title{
  font-size: clamp(28px, 3.4vw, 42px);
  max-width: 720px;
  margin-bottom: 18px;
}
.section-lead{
  max-width: 620px;
  font-size: 17px;
}

/* =========================================================
   SCALE DIVIDER (signature structural device)
========================================================= */
.scale-divider{
  position: relative;
  height: 46px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  display:flex;
  align-items:center;
}
.scale-divider::before{
  content:"";
  position:absolute;
  left:32px; right:32px; top:50%;
  height:1px;
  background: repeating-linear-gradient(
    to right,
    var(--line) 0, var(--line) 1px,
    transparent 1px, transparent 10px
  );
}
.scale-divider::after{
  content:"";
  position:absolute;
  left:32px; top:calc(50% - 5px);
  width:1px; height:10px;
  background: var(--line);
}
.scale-divider span{
  position:relative;
  background: var(--concrete);
  padding-right: 10px;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--steel);
  z-index:1;
}

/* =========================================================
   HEADER / NAV
========================================================= */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 100;
  background: rgba(18,35,59,0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line-dark);
}
.nav-wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 32px;
  display:flex;
  align-items:center;
  gap: 28px;
}
.logo-slot img{ height: 40px; width:auto; }
.main-nav{
  display:flex;
  align-items:center;
  gap: 30px;
  margin-left: 8px;
  flex:1;
}
.nav-link{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--concrete);
  opacity: 0.8;
  position: relative;
  padding: 6px 0;
}
.nav-link:hover{ opacity:1; }
.nav-link::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:0; height:1px;
  background: var(--signal);
  transition: width .25s ease;
}
.nav-link:hover::after{ width:100%; }
.nav-cta{
  border: 1px solid var(--signal);
  padding: 7px 16px;
  border-radius: 2px;
  opacity: 1;
}
.nav-cta::after{ display:none; }

.nav-social{ display:flex; gap:14px; }
.social-icon{
  width: 30px; height:30px;
  display:flex; align-items:center; justify-content:center;
  color: var(--concrete);
  opacity: .75;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
}
.social-icon svg{ width:15px; height:15px; }
.social-icon:hover{ opacity:1; border-color: var(--signal); color: var(--signal); }

.menu-toggle{
  display:none;
  background:none; border:none; cursor:pointer;
  width: 32px; height: 24px;
  flex-direction: column; justify-content: space-between;
  padding:0;
}
.menu-toggle span{
  display:block; height:2px; width:100%;
  background: var(--concrete);
}

/* =========================================================
   HERO
========================================================= */
.hero{
  position: relative;
  min-height: 100vh;
  display:flex;
  align-items:center;
  padding: 140px 32px 80px;
  background: var(--ink);
  color: var(--concrete);
  overflow:hidden;
}
.hero-grid-bg{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 30% 40%, black 20%, transparent 75%);
}
.hero-content{
  position:relative;
  z-index:2;
  max-width: 620px;
  flex: 1 1 480px;
}
.eyebrow{
  color: var(--signal);
  font-size: 12px;
  letter-spacing: 2px;
  margin-bottom: 22px;
}
.hero-title{
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.08;
  color: var(--paper);
  margin-bottom: 22px;
}
.hero-sub{
  color: #C9CDD3;
  font-size: 17px;
  max-width: 520px;
  margin-bottom: 34px;
}
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom: 56px; }

.btn{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1px;
  padding: 14px 26px;
  border-radius: 2px;
  border: 1px solid transparent;
  display:inline-block;
  transition: transform .2s ease, background .2s ease, color .2s ease;
}
.btn-primary{
  background: var(--signal);
  color: var(--paper);
}
.btn-primary:hover{ background: var(--signal-dark); transform: translateY(-2px); }
.btn-ghost{
  border-color: var(--line-dark);
  color: var(--concrete);
}
.btn-ghost:hover{ border-color: var(--signal); color: var(--signal); transform: translateY(-2px); }
.btn-block{ width:100%; text-align:center; border:none; cursor:pointer; }

.hero-stats{
  display:grid;
  grid-template-columns: repeat(4, minmax(110px,1fr));
  gap: 20px;
  border-top: 1px solid var(--line-dark);
  padding-top: 26px;
}
.stat{ display:flex; flex-direction:column; gap:4px; }
.stat-num{ font-size: 22px; color: var(--signal); }
.stat-label{ font-size: 10.5px; letter-spacing: .5px; color: #97A1AC; line-height:1.4; }

.hero-visual{
  position: relative;
  z-index: 2;
  flex: 1 1 380px;
  display:flex;
  align-items:center;
  justify-content:center;
  min-width: 320px;
}
.blueprint-building{ width: 100%; max-width: 380px; height:auto; }

.stamp-badge{
  position:absolute;
  right: 4%;
  bottom: 4%;
  width: 130px; height:130px;
  animation: rotateStamp 40s linear infinite;
}
.stamp-badge svg{ width:100%; height:100%; }
@keyframes rotateStamp{
  from{ transform: rotate(0deg); }
  to{ transform: rotate(360deg); }
}


/* =========================================================
   PERFIL
========================================================= */
.perfil-grid{
  display:grid;
  grid-template-columns: 340px 1fr;
  gap: 64px;
  align-items: start;
}
.perfil-photo{ position:relative; }
.perfil-photo img{ width:100%; border-radius:2px; }
.perfil-photo-frame{
  position:absolute;
  top:14px; left:14px; right:-14px; bottom:-14px;
  border: 1px solid var(--signal);
  border-radius:2px;
  z-index:-1;
}
.perfil-lead{ font-size: 18px; color: var(--ink-2); }

.credentials{
  margin-top: 28px;
  border-top: 1px solid var(--line);
}
.credentials li{
  display:flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
}
.credentials li span:first-child{ color: var(--steel); white-space:nowrap; }
.credentials li span:last-child{ color: var(--ink); text-align:right; }

/* =========================================================
   SERVICIOS
========================================================= */
.servicios{ background: var(--paper); }
.servicios-grid{
  margin-top: 48px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.servicio-card{
  background: var(--paper);
  padding: 36px 30px;
}
.servicio-icon{
  width: 40px; height:40px;
  color: var(--signal);
  margin-bottom: 22px;
}
.servicio-card h3{
  font-size: 18px;
  margin-bottom: 10px;
}
.servicio-card p{ font-size: 14.5px; margin:0; }

/* =========================================================
   PORTAFOLIO
========================================================= */
.filter-row{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin: 40px 0 44px;
}
.filter-btn{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .5px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--steel);
  border-radius: 20px;
  cursor:pointer;
  transition: all .2s ease;
}
.filter-btn:hover{ border-color: var(--signal); color: var(--signal); }
.filter-btn.active{
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.portafolio-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.proyecto-card{
  background: var(--paper);
  border: 1px solid var(--line);
  overflow:hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.proyecto-card:hover{
  transform: translateY(-4px);
  box-shadow: 0 16px 30px rgba(18,35,59,0.12);
}
.proyecto-card.is-hidden{ display:none; }
.proyecto-img{ aspect-ratio: 4/3; overflow:hidden; background: var(--ink); }
.proyecto-img img{ width:100%; height:100%; object-fit:cover; }
.proyecto-info{ padding: 24px 26px 28px; }
.chip{
  display:inline-block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 1px;
  color: var(--signal-dark);
  background: rgba(232,85,31,0.1);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.proyecto-info h3{ font-size: 20px; margin-bottom: 6px; }
.proyecto-loc{ font-size: 11.5px; color: var(--steel); margin-bottom: 12px; letter-spacing: .5px; }
.proyecto-info p:last-child{ font-size: 14px; margin:0; }

/* =========================================================
   CONTACTO
========================================================= */
.contacto{ background: var(--ink); color: var(--concrete); }
.contacto h2{ color: var(--paper); font-size: clamp(28px,3.4vw,40px); margin-bottom:16px; }
.contacto .section-lead{ color: #B9BFC7; }
.contacto-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items:start;
}
.contact-list{ margin-top: 34px; border-top: 1px solid var(--line-dark); }
.contact-list li{
  display:flex;
  justify-content:space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 13px;
}
.contact-label{ color: #8891A0; letter-spacing:1px; }
.contact-list a{ color: var(--concrete); }
.contact-list a:hover{ color: var(--signal); }
.contact-social{ margin-top: 30px; }

.contacto-form{
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  padding: 34px;
  display:flex;
  flex-direction:column;
  gap: 20px;
  border-radius: 2px;
}
.contacto-form label{
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size: 11.5px;
  letter-spacing: 1px;
  color: #9AA3AF;
}
.contacto-form input,
.contacto-form select,
.contacto-form textarea{
  font-family: var(--font-body);
  font-size: 14.5px;
  padding: 12px 14px;
  background: rgba(234,231,224,0.05);
  border: 1px solid var(--line-dark);
  border-radius: 2px;
  color: var(--paper);
  resize: vertical;
}
.contacto-form input::placeholder,
.contacto-form textarea::placeholder{ color: #6E7885; }
.contacto-form input:focus,
.contacto-form select:focus,
.contacto-form textarea:focus{ border-color: var(--signal); outline:none; }

/* =========================================================
   FOOTER
========================================================= */
.site-footer{
  background: var(--ink);
  color: var(--concrete);
  border-top: 1px solid var(--line-dark);
}
.footer-inner{
  max-width: var(--container);
  margin:0 auto;
  padding: 40px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap: 24px;
}
.footer-logo img{ height:34px; }
.footer-nav{ display:flex; gap:24px; flex-wrap:wrap; }
.footer-nav a{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .5px;
  color: var(--concrete);
  opacity: .8;
}
.footer-nav a:hover{ opacity:1; color: var(--signal); }
.footer-bottom{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px 32px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap: 8px;
  font-size: 10.5px;
  letter-spacing: 1px;
  color: #7C8695;
}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width: 980px){
  .perfil-grid{ grid-template-columns: 1fr; }
  .perfil-photo{ max-width: 320px; }
  .contacto-grid{ grid-template-columns: 1fr; }
  .servicios-grid{ grid-template-columns: repeat(2,1fr); }
  .portafolio-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 860px){
  .main-nav{
    position: fixed;
    top: 66px; left:0; right:0;
    background: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 32px 20px;
    border-bottom: 1px solid var(--line-dark);
    transform: translateY(-130%);
    opacity:0;
    transition: transform .3s ease, opacity .3s ease;
  }
  .main-nav.open{ transform: translateY(0); opacity:1; }
  .main-nav .nav-link{ width:100%; padding: 14px 0; border-bottom: 1px solid var(--line-dark); }
  .nav-cta{ border:none; margin-top: 6px; }
  .nav-social{ display:none; }
  .menu-toggle{ display:flex; }
  .hero{ flex-direction: column; text-align:left; }
  .hero-visual{ margin-top: 50px; }
  .stamp-badge{ position:static; margin-top: 30px; width:100px; height:100px; }
  .servicios-grid{ grid-template-columns: 1fr; }
}

@media (max-width: 560px){
  .section{ padding: 64px 0; }
  .hero-stats{ grid-template-columns: repeat(2,1fr); }
  .hero{ padding-top: 120px; }
}