/* ===== FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  --bg-primary: #060e1a;
  --bg-secondary: #0a1628;
  --bg-card: rgba(255,255,255,0.03);
  --bg-card-hover: rgba(255,255,255,0.06);
  --bg-glass: rgba(255,255,255,0.04);
  --border-glass: rgba(255,255,255,0.08);
  --accent-1: #3d85b8;
  --accent-2: #5ba3cf;
  --accent-3: #88c5e0;
  --accent-gradient: linear-gradient(135deg, #1e4a7a, #3d85b8, #5ba3cf);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-glow: 0 0 60px rgba(61,133,184,0.10);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

/* ===== LIGHT THEME ===== */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: rgba(0,0,0,0.02);
  --bg-card-hover: rgba(0,0,0,0.05);
  --bg-glass: rgba(0,0,0,0.03);
  --border-glass: rgba(0,0,0,0.1);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --shadow-glow: 0 0 60px rgba(61,133,184,0.12);
}
[data-theme="light"] .navbar {
  background: rgba(248,250,252,0.8);
  border-bottom-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .navbar.scrolled {
  background: rgba(6,14,26,0.90);
  border-bottom-color: rgba(255,255,255,0.08);
}
[data-theme="light"] .navbar.scrolled .nav-logo {
  color: #f1f5f9;
}
[data-theme="light"] .navbar.scrolled .nav-links a {
  color: #94a3b8;
}
[data-theme="light"] .navbar.scrolled .nav-links a:hover {
  color: #f1f5f9;
}
[data-theme="light"] .navbar.scrolled .nav-links a.lang-switch {
  color: #88c5e0;
}
[data-theme="light"] .navbar.scrolled .theme-toggle {
  color: #f1f5f9;
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
}
[data-theme="light"] .hero-glow {
  background: radial-gradient(circle, rgba(61,133,184,0.15) 0%, transparent 70%);
}
[data-theme="light"] .hero-image-container {
  border-color: rgba(61,133,184,0.2);
  box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}
[data-theme="light"] .highlight-logo {
  filter: none;
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  background: var(--bg-card-hover);
  border-color: rgba(61,133,184,0.3);
  transform: rotate(30deg);
}

/* ===== RESET ===== */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; font-size: 16px; }
body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* ===== BACKGROUND EFFECTS ===== */
body::before {
  content: '';
  position: fixed;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at 20% 50%, rgba(61,133,184,0.06) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 20%, rgba(61,133,184,0.04) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(91,163,207,0.04) 0%, transparent 50%);
  z-index: -1;
  animation: bgFloat 20s ease-in-out infinite;
}
@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-2%, -1%); }
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1rem 2rem;
  transition: var(--transition);
  backdrop-filter: blur(0px);
}
.navbar.scrolled {
  background: rgba(6,14,26,0.90);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  padding: 0.7rem 2rem;
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}
.nav-logo-img {
  height: 44px;
  width: auto;
  flex-shrink: 0;
}
.nav-logo-eng {
  font-weight: 400;
  opacity: 0.55;
  font-size: 0.82em;
  letter-spacing: 0.1em;
}
.nav-links { display: flex; gap: 2rem; }
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent-gradient);
  transition: var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.lang-switch {
  padding: 0.3rem 0.75rem;
  background: rgba(61,133,184,0.12);
  border: 1px solid rgba(61,133,184,0.25);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-3);
  letter-spacing: 0.03em;
}
.nav-links a.lang-switch::after { display: none; }
.nav-links a.lang-switch:hover {
  background: rgba(61,133,184,0.2);
  color: var(--text-primary);
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text-secondary); transition: var(--transition); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 6rem 2rem 4rem;
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-text { z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent-3);
  font-weight: 500;
  margin-bottom: 1.5rem;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  min-height: 3.3em;
}
.hero h1 .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 520px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.hero-stat .number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: var(--font-main);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(61,133,184,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(61,133,184,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}
.btn-outline:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-1);
}

/* Hero Image */
.hero-image-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.hero-image-container {
  width: 360px; height: 420px;
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.hero-image-container img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
}
.hero-image-container::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-glass);
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61,133,184,0.15) 0%, transparent 70%);
  filter: blur(40px);
  z-index: -1;
}
.hero-image-title {
  text-align: center;
  margin-top: 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}
.hero-image-subtitle {
  text-align: center;
  margin-top: 0.2rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  opacity: 0.85;
}
.hero-float-card {
  position: absolute;
  background: rgba(15,15,25,0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 0.8rem 1.2rem;
  font-size: 0.8rem;
  z-index: 3;
  animation: float 6s ease-in-out infinite;
}
.hero-float-card.card-1 { bottom: 10%; left: -15%; animation-delay: 0s; }
.hero-float-card.card-2 { top: 10%; right: -10%; animation-delay: 2s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.float-card-label { color: var(--text-muted); font-size: 0.7rem; margin-bottom: 0.2rem; }
.float-card-value { color: var(--text-primary); font-weight: 700; }
.float-card-value.accent { color: var(--accent-3); }

/* ===== SECTIONS GENERAL ===== */
section { padding: 6rem 2rem; }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-1);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1rem;
}
.section-label::before {
  content: '';
  width: 24px; height: 2px;
  background: var(--accent-gradient);
}
.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
}
.section-subtitle.full-width { max-width: 100%; }

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}
.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.highlight-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.highlight-card.full-width {
  grid-column: 1 / -1;
  text-align: center;
}
.highlight-card.full-width .highlight-logo {
  margin-left: auto;
  margin-right: auto;
}
.highlight-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(61,133,184,0.2);
  transform: translateY(-4px);
}
.highlight-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}
.highlight-logo {
  height: 90px;
  width: auto;
  max-width: 260px;
  margin-bottom: 0.75rem;
  display: block;
  object-fit: contain;
  filter: brightness(1.4);
}
.highlight-number {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.highlight-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ===== EXPERIENCE TIMELINE ===== */
.timeline { position: relative; margin-top: 2rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-1), var(--accent-2), transparent);
}
.timeline-item {
  padding-left: 3rem;
  margin-bottom: 3rem;
  position: relative;
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px; top: 8px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent-1);
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 10px rgba(61,133,184,0.4);
}
.timeline-date {
  font-size: 0.8rem;
  color: var(--accent-3);
  font-weight: 600;
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}
.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition);
}
.timeline-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(61,133,184,0.15);
}
.timeline-role {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.timeline-company {
  font-size: 0.95rem;
  color: var(--accent-2);
  font-weight: 500;
  margin-bottom: 0.5rem;
}
.timeline-location {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.timeline-bullets { display: flex; flex-direction: column; gap: 0.5rem; }
.timeline-bullets li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 1.2rem;
  position: relative;
}
.timeline-bullets li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent-1);
  font-weight: 700;
}

/* ===== PROJECT GRID (Trayectoria) ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}
.project-chip {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  transition: var(--transition);
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}
.project-chip:hover {
  background: var(--bg-card-hover);
  border-color: rgba(61,133,184,0.2);
  transform: translateY(-3px);
}
.project-chip-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(61,133,184,0.08);
  border-radius: var(--radius-sm);
}
.project-chip-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.project-chip-text .project-org {
  font-size: 0.78rem;
  color: var(--accent-2);
  font-weight: 500;
  margin-bottom: 0.35rem;
}
.project-chip-text p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== PROJECT CHIP FEATURED ===== */
.project-chip--featured {
  border-color: rgba(61,133,184,0.4);
  background: linear-gradient(135deg, var(--bg-card), rgba(61,133,184,0.07));
  box-shadow: 0 0 0 1px rgba(61,133,184,0.15);
}
.project-chip--featured .project-chip-icon {
  background: rgba(61,133,184,0.2);
}

/* ===== SERVICES GRID ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  border-color: rgba(61,133,184,0.2);
  box-shadow: var(--shadow-glow);
}
.service-icon {
  font-size: 2rem;
  margin-bottom: 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(61,133,184,0.08);
  border: 1px solid rgba(61,133,184,0.15);
  border-radius: var(--radius-md);
}
.service-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.service-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: auto;
}
.service-tags li {
  padding: 0.3rem 0.75rem;
  background: rgba(61,133,184,0.08);
  border: 1px solid rgba(61,133,184,0.15);
  border-radius: 100px;
  font-size: 0.78rem;
  color: var(--accent-3);
  font-weight: 500;
}

/* ===== DATA CENTERS SECTION ===== */
.dc-intro {
  max-width: 800px;
  margin: 0 auto 3rem;
  text-align: center;
}
.dc-intro p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.dc-capabilities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.dc-cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  transition: var(--transition);
  text-align: center;
}
.dc-cap-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(61,133,184,0.2);
  transform: translateY(-4px);
}
.dc-cap-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.dc-cap-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.dc-cap-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
/* ===== B2B COLLABORATION SECTION ===== */
.b2b-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}
.b2b-card {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition);
}
.b2b-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(61,133,184,0.2);
}
.b2b-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 0.1rem; }
.b2b-card h4 { font-size: 0.95rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.35rem; }
.b2b-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; margin: 0; }
.b2b-cta { text-align: center; margin-top: 2.5rem; }
.b2b-availability {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 2rem;
  background: linear-gradient(135deg, rgba(61,133,184,0.08), rgba(61,133,184,0.04));
  border: 1px solid rgba(61,133,184,0.18);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.b2b-loc {
  flex: 1;
  padding: 1.5rem 2rem;
  text-align: center;
}
.b2b-loc-icon { font-size: 1.6rem; margin-bottom: 0.5rem; }
.b2b-loc-title { font-size: 0.9rem; font-weight: 700; color: var(--text-primary); margin-bottom: 0.35rem; }
.b2b-loc-desc { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.5; }
.b2b-loc-arrow {
  font-size: 1.2rem;
  color: var(--accent-2);
  opacity: 0.5;
  flex-shrink: 0;
  padding: 0 0.25rem;
}

.dc-location-banner {
  background: linear-gradient(135deg, rgba(61,133,184,0.08), rgba(61,133,184,0.08));
  border: 1px solid rgba(61,133,184,0.15);
  border-radius: var(--radius-lg);
  padding: 2rem 2.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 2.5rem;
}
.dc-location-badge {
  font-size: 3rem;
  flex-shrink: 0;
}
.dc-location-text h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.dc-location-text p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.dc-institutions {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-glass);
  font-size: 0.85rem;
  color: var(--text-muted);
}
/* ===== EXPERTISE GRID ===== */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.expertise-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.expertise-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transition: var(--transition);
}
.expertise-card:hover::before { transform: scaleX(1); }
.expertise-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  border-color: rgba(61,133,184,0.2);
}
.expertise-icon { font-size: 2rem; margin-bottom: 1rem; }
.expertise-name {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.expertise-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== EDUCATION ===== */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}
.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.edu-card::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 100px; height: 100px;
  background: radial-gradient(circle, rgba(61,133,184,0.08) 0%, transparent 70%);
}
.edu-card:hover {
  border-color: rgba(61,133,184,0.2);
  transform: translateY(-4px);
}
.edu-institution {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.edu-degree {
  color: var(--accent-3);
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}
.edu-year {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 0.75rem;
}
.edu-detail {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  background: rgba(61,133,184,0.06);
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--accent-1);
}

/* ===== CONTACT ===== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}
.contact-links { display: flex; flex-direction: column; gap: 1rem; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.contact-link:hover {
  background: var(--bg-card-hover);
  border-color: rgba(61,133,184,0.2);
  transform: translateX(4px);
}
.contact-link-icon {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(61,133,184,0.1);
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
}
.contact-link-text .cl-label { font-size: 0.75rem; color: var(--text-muted); }
.contact-link-text .cl-value { font-weight: 600; font-size: 0.95rem; }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-privacy { font-size: 0.75rem; color: var(--text-muted); text-align: center; margin: 0; }
.form-privacy a { color: var(--text-muted); text-decoration: underline; }
.form-privacy a:hover { color: var(--accent-2); }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.form-group input, .form-group textarea, .form-group select {
  padding: 0.85rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(61,133,184,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* ===== FOOTER ===== */
footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--border-glass);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}
.footer-logo img {
  height: 40px;
  width: auto;
}
.footer-logo-eng {
  font-weight: 400;
  opacity: 0.55;
  font-size: 0.82em;
  letter-spacing: 0.1em;
}
.footer-legal {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-legal a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-legal a:hover { color: var(--accent-2); }
.footer-text { font-size: 0.8rem; color: var(--text-muted); }
.footer-text .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* ===== LEGAL PAGES ===== */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
}
.legal-content h1 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.legal-content .legal-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
  font-family: var(--font-mono);
}
.legal-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 2.5rem 0 0.75rem;
  color: var(--accent-2);
}
.legal-content p, .legal-content li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 0.75rem;
}
.legal-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}
.legal-content a { color: var(--accent-2); text-decoration: underline; }
.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  transition: var(--transition);
}
.legal-back:hover { color: var(--accent-2); }

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 968px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-description { margin-left: auto; margin-right: auto; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); justify-content: center; }
  .hero-ctas { justify-content: center; }
  .hero-image-wrapper { order: -1; }
  .hero-image-container { width: 280px; height: 340px; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .dc-capabilities { grid-template-columns: 1fr; }
  .dc-location-banner { flex-direction: column; text-align: center; }
  .b2b-grid { grid-template-columns: 1fr; }
  .b2b-availability { flex-direction: column; }
  .b2b-loc-arrow { transform: rotate(90deg); padding: 0.25rem 0; }
}
@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; background: rgba(6,6,11,0.95); backdrop-filter: blur(20px); padding: 1.5rem 2rem; gap: 1rem; border-bottom: 1px solid var(--border-glass); }
  .nav-links.active { display: flex; }
  .nav-toggle { display: flex; }
  section { padding: 4rem 1.25rem; }
  .education-grid { grid-template-columns: 1fr; }
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .expertise-grid { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; align-items: center; }
}

/* ===== WHATSAPP FLOATING BUTTON ===== */
.whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37,211,102,0.40);
  z-index: 999;
  transition: transform var(--transition), box-shadow var(--transition);
}
.whatsapp-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 32px rgba(37,211,102,0.55);
}
@media (max-width: 600px) {
  .whatsapp-fab { width: 52px; height: 52px; bottom: 18px; right: 18px; }
}

/* ===== B2B "PARA QUIÉN" LABEL ===== */
.b2b-for {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 0.4rem;
}

/* ===== SELECT (form) ===== */
.form-group select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2394a3b8' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}