/* ===============================
   RESET & BASE
================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

a {
  text-decoration: none;
  color: inherit;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--negro);
  color: var(--gris-claro);
  line-height: 1.7;
  font-size: 16px;
  min-height: 100vh;
}

/* ===============================
   VARIABLES - PALETA ARQUEOBYTES
================================= */
:root {
  --negro: #0a0a0a;
  --negro-suave: #111111;
  --negro-card: #161616;
  --gris-oscuro: #1a1a1a;
  --gris-medio: #2a2a2a;
  --gris-borde: #333333;
  --gris-texto: #9a9a9a;
  --gris-claro: #BFC3C7;
  --blanco: #f5f5f5;

  /* Oro Arqueo */
  --oro: #C89B2B;
  --oro-claro: #DABB5C;
  --oro-oscuro: #A07D1F;

  /* Azul Byte */
  --azul: #1E88E5;
  --azul-claro: #4DA6F0;
  --azul-oscuro: #0F4C81;

  /* Aliases para compatibilidad */
  --ocre: var(--oro);
  --ocre-claro: var(--oro-claro);
  --ocre-oscuro: var(--oro-oscuro);
  --mostaza: var(--oro-claro);
  --mostaza-claro: var(--oro-claro);
  --mostaza-oscuro: var(--oro);
}

/* ===============================
   TEXTURA GRANULADA
================================= */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* ===============================
   UTILIDADES
================================= */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 16px;
  display: inline-block;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 500;
  color: var(--blanco);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--gris-texto);
  max-width: 600px;
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ===============================
   BOTONES
================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  transition: all .3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--ocre), var(--mostaza));
  color: var(--negro);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--ocre-claro), var(--mostaza-claro));
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(196, 136, 74, 0.3);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--azul);
  color: var(--azul);
}

.btn-secondary:hover {
  border-color: var(--ocre);
  color: var(--ocre);
}

/* ===============================
   HEADER
================================= */
.construction-banner {
  background: linear-gradient(135deg, var(--oro), var(--azul));
  color: #fff;
  text-align: center;
  padding: 8px 16px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10,10,10,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gris-medio);
  z-index: 1000;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  gap: 10px;
  flex-shrink: 0;
}

.logo .logo-icon {
  height: 36px;
  max-height: 36px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo .logo-text {
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.logo .logo-arqueo {
  color: var(--oro);
}

.logo .logo-bytes {
  color: var(--azul);
}

/* NAV DESKTOP */
.nav-main {
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav-main > a,
.nav-main .nav-parent {
  padding: 8px 12px;
  border-radius: 4px;
  text-decoration: none;
  color: var(--gris-texto);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all .25s ease;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.nav-main > a:hover,
.nav-main .nav-parent:hover {
  color: var(--blanco);
}

.nav-main > a.active,
.nav-main .nav-parent.active {
  color: var(--azul);
}

.nav-parent svg {
  width: 10px;
  height: 6px;
  transition: transform 0.2s ease;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: var(--negro-suave);
  border: 1px solid var(--gris-medio);
  border-radius: 6px;
  padding: 8px 0;
  padding-top: 12px;
  margin-top: 0;
  z-index: 1001;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}

/* Invisible bridge to keep hover active between link and menu */
.nav-dropdown::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 10px;
  display: none;
}

.nav-dropdown:hover::after {
  display: block;
}

.nav-dropdown:hover .dropdown-menu {
  display: block;
}

.nav-dropdown:hover .nav-parent svg {
  transform: rotate(180deg);
}

.dropdown-menu a {
  display: block;
  padding: 10px 20px;
  text-decoration: none;
  color: var(--gris-texto);
  font-size: 0.82rem;
  font-weight: 500;
  transition: all .2s ease;
}

.dropdown-menu a:hover {
  color: var(--ocre);
  background: rgba(196, 136, 74, 0.05);
}

.dropdown-menu a.active {
  color: var(--ocre);
}

/* CTA HEADER */
.nav-cta {
  display: flex;
  gap: 12px;
  align-items: center;
}

.header-btn {
  padding: 10px 20px;
  font-size: 0.85rem;
}

/* MOBILE MENU */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--gris-claro);
  transition: all .3s ease;
}

.mobile-nav {
  display: none;
  background: var(--negro-suave);
  border-top: 1px solid var(--gris-medio);
  padding: 20px 0;
}

.mobile-nav a {
  display: block;
  padding: 14px 24px;
  text-decoration: none;
  color: var(--gris-texto);
  font-size: 0.95rem;
  transition: color .2s ease;
}

.mobile-nav a.mobile-nav-child {
  padding-left: 44px;
  font-size: 0.88rem;
  color: var(--gris-texto);
  opacity: 0.8;
}

.mobile-nav a.mobile-nav-cta {
  margin: 12px 24px;
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--ocre), var(--mostaza));
  color: var(--negro);
  border-radius: 4px;
  text-align: center;
  font-weight: 500;
  display: block;
}

.mobile-nav a:hover {
  color: var(--ocre);
}

.mobile-nav.open {
  display: block;
}

@media (max-width: 900px) {
  .nav-main, .nav-cta {
    display: none !important;
  }
  .menu-toggle {
    display: flex;
  }
  .logo .logo-icon {
    height: 30px;
    max-height: 30px;
  }
  .logo .logo-text {
    font-size: 0.95rem;
  }
  .page-hero {
    padding: 160px 0 60px;
  }
  .construction-banner {
    font-size: 0.7rem;
    padding: 6px 12px;
  }
}

/* ===============================
   HERO
================================= */
.page-hero {
  padding: 180px 0 100px;
  background: linear-gradient(180deg, var(--negro-suave) 0%, var(--negro) 100%);
  position: relative;
}

.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gris-medio), transparent);
}

.page-hero-content {
  max-width: 700px;
}

.page-hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.6rem, 5vw, 3.6rem);
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--blanco);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.page-hero h1 .gold {
  color: var(--mostaza);
}

.page-hero p {
  color: var(--gris-texto);
  margin-bottom: 32px;
  font-size: 1.1rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===============================
   CARDS
================================= */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--negro-card);
  border-radius: 8px;
  padding: 32px;
  border: 1px solid var(--gris-medio);
  transition: all .35s ease;
  position: relative;
  display: block;
}

a.card-link {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.card:hover {
  border-color: var(--azul);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(30, 136, 229, 0.15);
}

.card .icon {
  font-size: 1.8rem;
  margin-bottom: 20px;
  filter: grayscale(0.3);
}

.card h3 {
  font-family: 'Playfair Display', serif;
  font-weight: 500;
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--blanco);
}

.card p {
  color: var(--gris-texto);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.card .link {
  color: var(--azul);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color .2s ease;
}

.card .link:hover {
  color: var(--azul-claro);
}

/* ===============================
   CTA SECTION
================================= */
.cta {
  background: linear-gradient(135deg, var(--ocre-oscuro), var(--mostaza));
  color: var(--negro);
  text-align: center;
  padding: 90px 24px;
  position: relative;
}

.cta h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 3vw, 2.2rem);
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--negro);
}

.cta p {
  margin-bottom: 28px;
  opacity: 0.85;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta .btn-primary {
  background: var(--negro);
  color: var(--mostaza);
}

.cta .btn-primary:hover {
  background: var(--negro-suave);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.cta .btn-secondary {
  border-color: var(--negro);
  color: var(--negro);
}

.cta .btn-secondary:hover {
  background: var(--negro);
  color: var(--mostaza);
}

/* ===============================
   FOOTER
================================= */
footer {
  background: var(--negro-suave);
  color: var(--gris-texto);
  padding: 60px 0 40px;
  border-top: 1px solid var(--gris-medio);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .logo .logo-icon {
  height: 28px;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 300px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  text-decoration: none;
  color: var(--gris-texto);
  font-size: 0.88rem;
  padding: 4px 0;
  transition: color .2s ease;
}

.footer-col a:hover {
  color: var(--ocre);
}

.footer-bottom {
  border-top: 1px solid var(--gris-medio);
  margin-top: 40px;
  padding-top: 24px;
  font-size: 0.8rem;
  text-align: center;
  color: var(--gris-texto);
}

/* ===============================
   RESPONSIVE
================================= */
@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand p {
    max-width: 100%;
  }
}

/* ===============================
   PAGE SPECIFIC
================================= */
.page-section {
  border-bottom: 1px solid var(--gris-medio);
}

/* ===============================
   SERVICE BLOCKS
================================= */
.service-block {
  padding: 80px 0;
}

.service-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.service-number {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  color: var(--ocre);
  opacity: 0.6;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.service-icon {
  font-size: 1.6rem;
  filter: grayscale(0.3);
}

.service-purpose {
  color: var(--gris-texto);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 650px;
  margin-bottom: 36px;
  font-style: italic;
}

.service-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.service-details h4,
.service-deliverables h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 16px;
}

.service-details ul {
  list-style: none;
  padding: 0;
}

.service-details ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  color: var(--gris-claro);
  font-size: 0.95rem;
  line-height: 1.7;
}

.service-details ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--ocre-oscuro);
}

.deliverable-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-block;
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 4px;
  padding: 8px 16px;
  font-size: 0.82rem;
  color: var(--gris-claro);
  letter-spacing: 0.02em;
  transition: border-color 0.2s ease, color 0.2s ease;
  text-decoration: none;
  cursor: pointer;
}

.tag:hover {
  border-color: var(--ocre);
  color: var(--ocre);
}

.service-cta-link {
  color: var(--ocre);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.service-cta-link:hover {
  color: var(--mostaza);
}

@media (max-width: 900px) {
  .service-content {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* ===============================
   EJEMPLO PAGES
================================= */
.ejemplo-placeholder {
  text-align: center;
  padding: 60px 20px;
  margin-bottom: 48px;
  border: 1px dashed var(--gris-medio);
  border-radius: 8px;
  background: var(--negro-card);
}

.ejemplo-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 20px;
  filter: grayscale(0.3);
}

.ejemplo-placeholder .section-title {
  margin-bottom: 12px;
}

.ejemplo-placeholder .section-subtitle {
  max-width: 500px;
  margin: 0 auto;
}

.ejemplo-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ejemplo-meta-item {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  padding: 24px;
}

.ejemplo-meta-item h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 10px;
}

.ejemplo-meta-item p {
  color: var(--gris-claro);
  font-size: 0.92rem;
  line-height: 1.6;
}

.ejemplo-meta-item a {
  color: var(--ocre);
  text-decoration: none;
  transition: color 0.2s ease;
}

.ejemplo-meta-item a:hover {
  color: var(--mostaza);
}

@media (max-width: 900px) {
  .ejemplo-meta {
    grid-template-columns: 1fr;
  }
}

/* Contact Form */
.contact-form {
  max-width: 500px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--gris-claro);
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 4px;
  color: var(--blanco);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color .2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--ocre);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* Project Cards */
.project-card {
  background: var(--negro-card);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--gris-medio);
  transition: all .35s ease;
}

.project-card:hover {
  border-color: var(--ocre-oscuro);
  transform: translateY(-4px);
}

.project-image {
  height: 200px;
  background: linear-gradient(135deg, var(--gris-medio), var(--gris-oscuro));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  filter: grayscale(0.3);
}

.project-content {
  padding: 28px;
}

.project-content h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  color: var(--blanco);
  margin-bottom: 8px;
}

.project-content p {
  color: var(--gris-texto);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===============================
   CONTENT PROSE
================================= */
.content-prose {
  max-width: 700px;
  color: var(--gris-claro);
  line-height: 1.8;
  font-size: 1rem;
}

.content-prose p {
  margin-bottom: 16px;
}

.content-prose h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.6rem;
  color: var(--blanco);
  margin-top: 40px;
  margin-bottom: 16px;
}

.content-prose h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  color: var(--blanco);
  margin-top: 32px;
  margin-bottom: 12px;
}

.content-prose ul {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
}

.content-prose ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  color: var(--gris-claro);
}

.content-prose ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--ocre-oscuro);
}

.content-prose a {
  color: var(--ocre);
  text-decoration: none;
  transition: color .2s ease;
}

.content-prose a:hover {
  color: var(--mostaza);
}

.content-prose strong {
  color: var(--blanco);
}

/* ===============================
   PROCESS STEPS
================================= */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.process-step {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  padding: 32px;
  transition: border-color 0.3s ease;
}

.process-step:hover {
  border-color: var(--ocre-oscuro);
}

.process-number {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  color: var(--ocre);
  opacity: 0.6;
  font-weight: 500;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 12px;
}

.process-step h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  color: var(--blanco);
  margin-bottom: 10px;
}

.process-step p {
  color: var(--gris-texto);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ===============================
   SKETCHFAB EMBED
================================= */
.sketchfab-card {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  overflow: hidden;
  transition: all .35s ease;
}

.sketchfab-card:hover {
  border-color: var(--ocre-oscuro);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}

.sketchfab-embed-wrapper {
  position: relative;
  width: 100%;
  background: var(--gris-oscuro);
}

.sketchfab-embed-wrapper iframe {
  display: block;
  width: 100%;
  height: 360px;
  border: none;
}

.sketchfab-info {
  padding: 20px 24px;
}

.sketchfab-info h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  color: var(--blanco);
  margin-bottom: 6px;
}

.sketchfab-info p {
  color: var(--gris-texto);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 8px;
}

.sketchfab-info .link {
  color: var(--ocre);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color .2s ease;
}

.sketchfab-info .link:hover {
  color: var(--mostaza);
}

/* ===============================
   LAB CARDS
================================= */
.lab-card {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  padding: 32px;
  transition: all .35s ease;
}

.lab-card:hover {
  border-color: var(--ocre-oscuro);
  transform: translateY(-4px);
}

.lab-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.lab-icon {
  font-size: 1.8rem;
}

.lab-status {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 4px;
  background: rgba(255,255,255,0.05);
}

.lab-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  color: var(--blanco);
  margin-bottom: 10px;
}

.lab-desc {
  color: var(--gris-texto);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.lab-objective {
  border-top: 1px solid var(--gris-medio);
  padding-top: 16px;
}

.lab-objective h4 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 6px;
}

.lab-objective p {
  color: var(--gris-claro);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===============================
   PROJECT CARDS (full detail)
================================= */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.project-card-full {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  padding: 40px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  transition: border-color 0.3s ease;
}

.project-card-full:hover {
  border-color: var(--ocre-oscuro);
}

.project-card-icon {
  font-size: 2.5rem;
  filter: grayscale(0.3);
  padding-top: 4px;
}

.project-card-body h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem;
  color: var(--blanco);
  margin-bottom: 24px;
}

.project-card-body .link {
  color: var(--ocre);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color .2s ease;
  margin-top: 16px;
  display: inline-block;
}

.project-card-body .link:hover {
  color: var(--mostaza);
}

.project-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 16px;
}

.project-meta-item h4 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 6px;
}

.project-meta-item p {
  color: var(--gris-claro);
  font-size: 0.9rem;
  line-height: 1.6;
}

.project-impact {
  border-top: 1px solid var(--gris-medio);
  padding-top: 16px;
}

.project-impact h4 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 6px;
}

.project-impact p {
  color: var(--gris-claro);
  font-size: 0.9rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .project-card-full {
    grid-template-columns: 1fr;
    padding: 28px;
  }
  .project-meta-grid {
    grid-template-columns: 1fr;
  }
}

/* ===============================
   FILTER BAR
================================= */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-btn {
  background: var(--negro-card);
  color: var(--gris-claro);
  border: 1px solid var(--gris-medio);
  border-radius: 4px;
  padding: 8px 18px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: inherit;
}

.filter-btn:hover {
  border-color: var(--oro-oscuro);
  color: var(--blanco);
}

.filter-btn--active {
  background: var(--oro);
  color: var(--negro);
  border-color: var(--oro);
  font-weight: 600;
}

/* ===============================
   CARD-ACCORDION — Producción
================================= */
.acc-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* --- Tarjeta padre (summary) --- */
.acc-card {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.acc-card:hover {
  border-color: var(--oro-oscuro);
}

.acc-card[open] {
  border-color: var(--oro);
  box-shadow: 0 0 0 1px rgba(200,155,43,0.08), 0 8px 32px rgba(0,0,0,0.25);
}

.acc-card-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 32px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.acc-card-summary::-webkit-details-marker { display: none; }
.acc-card-summary::marker { display: none; content: ""; }

.acc-card-left {
  flex: 1;
  min-width: 0;
}

.acc-card-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  color: var(--blanco);
  margin: 0;
  transition: color 0.2s ease;
}

.acc-card:hover .acc-card-title,
.acc-card[open] .acc-card-title {
  color: var(--oro-claro);
}

.acc-card-sub {
  font-size: 0.82rem;
  color: var(--gris-texto);
  margin: 6px 0 0;
  line-height: 1.5;
}

.acc-card-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  margin-left: 20px;
}

.acc-card-count {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gris-texto);
  white-space: nowrap;
}

.acc-card-arrow {
  color: var(--gris-texto);
  transition: transform 0.3s ease, color 0.3s ease;
}

.acc-card[open] .acc-card-arrow {
  transform: rotate(180deg);
  color: var(--oro);
}

/* --- Cuerpo desplegado --- */
.acc-card-body {
  padding: 0 32px 32px;
  display: grid;
  gap: 16px;
  animation: fadeIn 0.3s ease;
}

/* --- Tarjeta hija (item) --- */
.acc-item {
  background: var(--gris-oscuro);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  padding: 24px 28px;
  transition: border-color 0.25s ease, transform 0.2s ease;
}

.acc-item:hover {
  border-color: var(--oro-oscuro);
  transform: translateY(-1px);
}

.acc-item-head {
  margin-bottom: 10px;
}

.acc-item-title {
  font-family: 'Playfair Display', serif;
  font-size: 1.02rem;
  color: var(--blanco);
  margin: 0 0 8px;
}

.acc-item-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.acc-item-desc {
  color: var(--gris-claro);
  font-size: 0.88rem;
  line-height: 1.65;
  margin: 0 0 14px;
}

.acc-item-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--gris-medio);
}

@media (max-width: 768px) {
  .acc-card-summary {
    padding: 20px 22px;
    flex-wrap: wrap;
    gap: 8px;
  }
  .acc-card-right {
    margin-left: 0;
  }
  .acc-card-body {
    padding: 0 22px 22px;
  }
  .acc-item {
    padding: 18px 20px;
  }
  .acc-card-title {
    font-size: 1.1rem;
  }
}

/* ===============================
   PROJECT CARD — New layout
================================= */
.project-card-header {
  margin-bottom: 16px;
}

.project-card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.badge {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 3px;
  line-height: 1.6;
}

.badge--tipo {
  background: rgba(200,155,43,0.15);
  color: var(--oro-claro);
}

.badge--fecha {
  background: rgba(30,136,229,0.12);
  color: var(--azul-claro);
}

.badge--rol {
  background: rgba(255,255,255,0.06);
  color: var(--gris-claro);
}

.project-resumen {
  color: var(--gris-claro);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.tag {
  font-size: 0.68rem;
  padding: 2px 10px;
  background: var(--gris-oscuro);
  border: 1px solid var(--gris-medio);
  color: var(--gris-texto);
  border-radius: 3px;
  letter-spacing: 0.03em;
}

.project-evidencias {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--gris-medio);
}

.btn-evidence {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--oro);
  text-decoration: none;
  padding: 6px 14px;
  border: 1px solid var(--oro-oscuro);
  border-radius: 4px;
  transition: all 0.25s ease;
}

.btn-evidence:hover {
  background: var(--oro);
  color: var(--negro);
  border-color: var(--oro);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===============================
   ML CASE CARDS
================================= */
.ml-portfolio {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.ml-case-card {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  padding: 36px;
  transition: border-color 0.3s ease;
}

.ml-case-card:hover {
  border-color: var(--ocre-oscuro);
}

.ml-case-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.ml-case-header h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  color: var(--blanco);
}

.ml-status {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 4px;
  background: rgba(255,255,255,0.05);
  white-space: nowrap;
  color: var(--gris-texto);
}

.ml-status--mvp { color: var(--ocre); }
.ml-status--prototipo { color: var(--mostaza); }
.ml-status--investigación { color: var(--ocre-claro); }
.ml-status--en-desarrollo { color: var(--gris-claro); }

.ml-case-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 24px;
}

.ml-case-item h4 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 8px;
}

.ml-case-item p {
  color: var(--gris-claro);
  font-size: 0.9rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .ml-case-grid {
    grid-template-columns: 1fr;
  }
}

/* ===============================
   USE CASE BLOCKS
================================= */
.use-case-block {
  padding: 60px 0;
}

.use-case-block.page-section {
  border-bottom: 1px solid var(--gris-medio);
}

.use-case-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.use-case-icon {
  font-size: 2rem;
}

.use-case-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-top: 16px;
}

.use-case-narrative p {
  color: var(--gris-claro);
  font-size: 1rem;
  line-height: 1.8;
}

.use-case-benefits h4 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 12px;
}

.use-case-benefits ul {
  list-style: none;
  padding: 0;
}

.use-case-benefits ul li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  color: var(--gris-claro);
  font-size: 0.92rem;
  line-height: 1.6;
}

.use-case-benefits ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--ocre);
  font-size: 0.8rem;
}

@media (max-width: 768px) {
  .use-case-content {
    grid-template-columns: 1fr;
  }
}

/* ===============================
   BLOG CARDS
================================= */
.blog-card {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  overflow: hidden;
  transition: all .35s ease;
}

.blog-card:hover {
  border-color: var(--ocre-oscuro);
  transform: translateY(-4px);
}

.blog-card-image {
  height: 180px;
  background: linear-gradient(135deg, var(--gris-medio), var(--gris-oscuro));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.blog-placeholder-icon {
  font-size: 3rem;
  filter: grayscale(0.3);
}

.blog-category {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 3px;
  background: rgba(10,10,10,0.8);
  color: var(--ocre);
}

.blog-card-body {
  padding: 24px;
}

.blog-date {
  font-size: 0.78rem;
  color: var(--gris-texto);
  display: block;
  margin-bottom: 8px;
}

.blog-card-body h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  color: var(--blanco);
  margin-bottom: 10px;
  line-height: 1.4;
}

.blog-card-body h3 a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}

.blog-card-body h3 a:hover {
  color: var(--ocre);
}

.blog-card-body p {
  color: var(--gris-texto);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.blog-author {
  font-size: 0.78rem;
  color: var(--gris-texto);
}

.blog-card-footer .link {
  color: var(--ocre);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  transition: color .2s ease;
}

.blog-card-footer .link:hover {
  color: var(--mostaza);
}

.blog-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.blog-cat-label {
  font-size: 0.82rem;
  color: var(--gris-texto);
  margin-right: 8px;
}

/* ===============================
   SKILLS GRID (Sobre)
================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 16px;
}

.skill-group h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 12px;
}

.skill-group ul {
  list-style: none;
  padding: 0;
}

.skill-group ul li {
  padding: 4px 0;
  color: var(--gris-claro);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

/* ===============================
   CONTACT LAYOUT
================================= */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 60px;
  align-items: start;
}

.contact-info-card {
  background: var(--negro-card);
  border: 1px solid var(--gris-medio);
  border-radius: 8px;
  padding: 28px;
}

.contact-info-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  color: var(--blanco);
  margin-bottom: 20px;
}

.contact-info-item {
  margin-bottom: 16px;
}

.contact-info-item h4 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ocre);
  margin-bottom: 4px;
}

.contact-info-item p,
.contact-info-item a {
  color: var(--gris-claro);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color .2s ease;
}

.contact-info-item a:hover {
  color: var(--ocre);
}

.contact-info-card ul {
  list-style: none;
  padding: 0;
}

.contact-info-card ul li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 10px;
  color: var(--gris-claro);
  font-size: 0.9rem;
  line-height: 1.6;
}

.contact-info-card ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--ocre);
  font-size: 0.8rem;
}

@media (max-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ===============================
   LEGAL PAGES
================================= */
.legal-page {
  padding-top: 140px;
}

.legal-page .section-title {
  margin-bottom: 8px;
}

.legal-updated {
  color: var(--gris-texto);
  font-size: 0.85rem;
  margin-bottom: 40px;
}

.legal-content {
  max-width: 700px;
}

.legal-content h2 {
  font-size: 1.3rem;
  margin-top: 48px;
}

.legal-content h3 {
  font-size: 1.05rem;
  margin-top: 28px;
}

.legal-content p {
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.legal-content table {
  margin-bottom: 16px;
}

/* Cookie Table */
.cookie-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
}

.cookie-table th,
.cookie-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gris-medio);
  font-size: 0.88rem;
}

.cookie-table th {
  color: var(--ocre);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.cookie-table td {
  color: var(--gris-claro);
}

/* ===============================
   COOKIE BANNER
================================= */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--negro-card);
  border-top: 1px solid var(--gris-medio);
  padding: 20px 24px;
  z-index: 10000;
  box-shadow: 0 -8px 30px rgba(0,0,0,0.4);
}

.cookie-banner-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-banner p {
  color: var(--gris-claro);
  font-size: 0.88rem;
  line-height: 1.6;
  flex: 1;
  min-width: 300px;
}

.cookie-banner a {
  color: var(--ocre);
  text-decoration: none;
}

.cookie-banner a:hover {
  color: var(--mostaza);
}

.cookie-buttons {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.82rem;
}