:root{
  --bg:#F5F6F8;
  --surface:#FFFFFF;
  --surface-2:#EEF1F4;
  --border:#DCE2E8;
  --ink:#122029;
  --ink-soft:#51606C;
  --ink-faint:#8695A1;
  --accent:#B97B25;
  --accent-ink:#6E4816;
  --accent-soft:#F6E9D6;
  --primary:#134A5C;
  --primary-soft:#E3EDF0;
  --error-bg:#FBEAEA;
  --error-border:#E5B7B7;
  --error-ink:#8A2A2A;
  --success-bg:#E9F5EF;
  --success-border:#BFE0CE;
  --success-ink:#1E6E4C;
  --shadow: 0 1px 2px rgba(18,32,41,0.06), 0 8px 24px -12px rgba(18,32,41,0.12);
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0F171D;
    --surface:#162129;
    --surface-2:#1C2932;
    --border:#2B3A44;
    --ink:#E8EDF0;
    --ink-soft:#AAB9C2;
    --ink-faint:#748491;
    --accent:#E0A857;
    --accent-ink:#F5DDAE;
    --accent-soft:#332512;
    --primary:#7FB2C4;
    --primary-soft:#17323B;
    --error-bg:#2B1818;
    --error-border:#5C2C2C;
    --error-ink:#E9A6A6;
    --success-bg:#12231C;
    --success-border:#2C5C42;
    --success-ink:#7FD8AC;
    --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 8px 24px -12px rgba(0,0,0,0.5);
  }
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Public Sans", -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height:1.6;
}
h1,h2,h3{
  font-family:"Newsreader", Georgia, "Times New Roman", serif;
  color:var(--ink);
  text-wrap:balance;
  font-weight:600;
  line-height:1.15;
  margin:0 0 14px;
}
p{margin:0 0 12px;color:var(--ink-soft);}
a{color:var(--primary);}
.mono{font-family:"IBM Plex Mono","SFMono-Regular",Consolas,Menlo,monospace;}

.eyebrow{
  font-family:"IBM Plex Mono", monospace;
  font-size:12px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--accent-ink);
  background:var(--accent-soft);
  display:inline-block;
  padding:4px 10px;
  border-radius:3px;
  margin-bottom:14px;
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:10;
  background:var(--bg);
  border-bottom:1px solid var(--border);
}
.nav{
  max-width:1040px;
  margin:0 auto;
  padding:16px 24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  font-size:19px;
}
.brand svg{width:36px; height:36px; flex:none; border-radius:8px;}
.brand-word{
  font-family:"Space Grotesk", -apple-system, "Segoe UI", Roboto, sans-serif;
  letter-spacing:-0.01em;
}
.brand-light{font-weight:400; color:var(--ink-soft);}
.brand-bold{font-weight:700; color:var(--ink);}
.nav-links{display:flex; align-items:center; gap:22px;}
.nav-links a{
  color:var(--ink-soft);
  text-decoration:none;
  font-size:14px;
}
.nav-links a:hover{color:var(--ink);}
.nav-cta{
  color:var(--surface) !important;
  background:var(--primary);
  padding:7px 14px;
  border-radius:5px;
  font-weight:600;
}
.nav-cta:hover{opacity:0.9;}

/* Flash messages */
.flash-stack{margin:20px 0 0; max-width:520px;}
.flash{
  padding:10px 14px;
  border-radius:6px;
  font-size:14px;
  margin-bottom:10px;
  border:1px solid;
}
.flash-success{background:var(--success-bg); border-color:var(--success-border); color:var(--success-ink);}
.flash-error{background:var(--error-bg); border-color:var(--error-border); color:var(--error-ink);}

/* Layout */
.section{
  max-width:1040px;
  margin:0 auto;
  padding:72px 24px;
}
.section-alt{background:var(--surface);}
.section h2{font-size:clamp(24px,3vw,32px);}
.section-sub{max-width:60ch; font-size:16px;}
.contact-alt{font-size:14px; color:var(--ink-faint); margin-top:-6px;}
.contact-alt a{color:var(--primary); text-decoration:none; font-size:13px;}
.contact-alt a:hover{text-decoration:underline;}
.group-label{
  font-family:"IBM Plex Mono", monospace;
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:0.06em;
  color:var(--ink-faint);
  margin:28px 0 10px;
}
.group-label:first-of-type{margin-top:6px;}
.group-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:6px 16px;
}
.group-head .group-label{margin-bottom:10px;}
.group-hint{
  font-size:12.5px;
  color:var(--ink-faint);
  margin:0 0 10px;
}

/* Hero */
.hero{
  max-width:1040px;
  margin:0 auto;
  padding:88px 24px 56px;
}
.hero h1{font-size:clamp(32px,5vw,48px); max-width:16ch; line-height:1.08;}
.hero-sub{font-size:17px; max-width:56ch;}
.hero-stats{
  display:flex;
  gap:32px;
  flex-wrap:wrap;
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--border);
}
.hero-stats > div{display:flex; flex-direction:column; gap:2px; font-family:"IBM Plex Mono",monospace;}
.hero-stats .num{font-size:20px; color:var(--primary); font-weight:600;}
.hero-stats .lbl{font-size:11.5px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:0.04em; max-width:20ch;}

/* Cards */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:16px;
}
.card-grid-2{grid-template-columns:repeat(2, 1fr);}
.card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:8px;
  padding:20px;
  box-shadow:var(--shadow);
  transition:transform .15s ease, box-shadow .15s ease;
}
.card-kind{
  position:absolute;
  top:14px;
  right:14px;
  font-family:"IBM Plex Mono", monospace;
  font-size:10px;
  text-transform:uppercase;
  letter-spacing:0.05em;
  padding:2px 7px;
  border-radius:3px;
}
.kind-proceso{color:var(--accent-ink); background:var(--accent-soft);}
.kind-infra{color:var(--ink-soft); background:var(--surface-2);}
.section-alt .kind-infra{background:var(--bg);}
.card:hover{
  transform:translateY(-3px);
  box-shadow:0 4px 10px rgba(18,32,41,0.10), 0 16px 30px -14px rgba(18,32,41,0.22);
}
.section-alt .card{background:var(--bg);}
.card.card-featured{border-color:var(--accent);}

/* Carousel: continuous right-to-left marquee, ~2 cards visible per view */
.carousel{position:relative;}
.carousel-track{
  display:flex;
  gap:16px;
  overflow-x:auto;
  scroll-behavior:auto;
  padding:2px 2px 10px;
  margin:0 -2px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.carousel-track::-webkit-scrollbar{display:none;}
.carousel-track .card{
  flex:0 0 calc(50% - 8px);
}
@media (max-width:720px){
  .carousel-track .card{flex:0 0 85%;}
}
.carousel-btn{
  position:absolute;
  top:calc(50% - 8px);
  transform:translateY(-50%);
  width:36px;
  height:36px;
  border-radius:50%;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--ink);
  font-size:18px;
  line-height:1;
  cursor:pointer;
  box-shadow:var(--shadow);
  display:flex;
  align-items:center;
  justify-content:center;
}
.carousel-btn:hover{background:var(--primary-soft);}
.carousel-prev{left:-16px;}
.carousel-next{right:-16px;}

@media (prefers-reduced-motion: reduce){
  .card{transition:none;}
  .carousel-track{scroll-behavior:auto;}
}

@media (max-width:720px){
  .carousel-btn{display:none;}
  .carousel-track{margin:0; padding:2px 0 10px;}
}
.card .tag{
  font-family:"IBM Plex Mono", monospace;
  font-size:11px;
  letter-spacing:0.04em;
  color:var(--primary);
  background:var(--primary-soft);
  padding:2px 8px;
  border-radius:3px;
  display:inline-block;
  margin-bottom:10px;
}
.card .tag.tag-accent{color:var(--accent-ink); background:var(--accent-soft);}
.card h3{font-size:16.5px; font-family:"Public Sans",sans-serif; font-weight:700; margin-bottom:6px;}
.card p{font-size:14px; margin:0;}

/* About */
.about-body{max-width:68ch;}
.about-body p{font-size:16px; color:var(--ink);}

/* Buttons */
.btn-primary{
  display:inline-block;
  background:var(--accent);
  color:#2A1A05;
  font-weight:600;
  font-size:15px;
  padding:12px 24px;
  border-radius:6px;
  text-decoration:none;
  border:none;
  cursor:pointer;
}
.btn-primary:hover{opacity:0.92;}

/* Thank-you page */
.thanks{
  max-width:640px;
  padding-top:120px;
  padding-bottom:120px;
  text-align:center;
}
.thanks .eyebrow{margin-left:auto; margin-right:auto;}
.thanks h1{font-size:clamp(30px,4vw,40px);}
.thanks-sub{font-size:16px; max-width:48ch; margin-left:auto; margin-right:auto;}
.thanks .btn-primary{margin-top:10px;}

/* Contact form */
.contact-form{
  display:flex;
  flex-direction:column;
  gap:6px;
  max-width:520px;
  margin-top:24px;
}
.contact-form label{
  font-size:13px;
  font-weight:600;
  color:var(--ink-soft);
  margin-top:10px;
}
.contact-form input,
.contact-form textarea{
  font:inherit;
  font-size:15px;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:6px;
  background:var(--surface);
  color:var(--ink);
}
.contact-form input:focus,
.contact-form textarea:focus{
  outline:2px solid var(--primary);
  outline-offset:1px;
}
.contact-form textarea{resize:vertical;}
.contact-form .btn-primary{margin-top:16px; width:fit-content;}
.hp-field{
  position:absolute;
  width:1px; height:1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
}

/* Footer */
.site-footer{
  max-width:1040px;
  margin:0 auto;
  padding:32px 24px 56px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--ink-faint);
}

@media (max-width:720px){
  .nav-links{gap:14px;}
  .nav-links a:not(.nav-cta){display:none;}
  .card-grid, .card-grid-2{grid-template-columns:1fr;}
}