/* ════════════════════════════════════════════════════════════
   OBTechnologies — Sistema de diseño compartido (light premium)
   Sustituye al CSS inline duplicado en cada página.
   Mismas clases y variables que el tema anterior: el CSS
   específico de cada página que use var(--*) se adapta solo.
   ════════════════════════════════════════════════════════════ */

:root {
  /* Superficies */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F6F8FA;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FAFBFC;

  /* Marca */
  --accent-blue: #0D9488;       /* teal de marca (se mantiene) */
  --accent-blue-dark: #0B7C72;
  --accent-cyan: #0E7490;       /* cyan oscurecido para contraste sobre blanco */
  --accent-glow: rgba(13,148,136,0.12);

  /* Texto */
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;

  /* Bordes y sombras */
  --border: #E5EAF1;
  --border-active: rgba(13,148,136,0.45);
  --shadow-xs: 0 1px 2px rgba(16,24,40,0.05);
  --shadow-sm: 0 1px 3px rgba(16,24,40,0.07), 0 1px 2px rgba(16,24,40,0.05);
  --shadow-md: 0 8px 24px rgba(16,24,40,0.08);
  --shadow-lg: 0 20px 48px rgba(16,24,40,0.12);

  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── SCROLL PROGRESS ───────────────────────────── */
#progress-bar {
  position: fixed; top: 0; left: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), #14B8A6);
  z-index: 1000; width: 0%; transition: width 0.1s;
}

/* ── NAV ──────────────────────────────────────── */
nav:not(.topbar):not(.topbar-nav):not(.breadcrumb) {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
  padding: 0 5%; height: 68px;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
nav.scrolled { background: rgba(255,255,255,0.96); box-shadow: var(--shadow-sm); }
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--text-primary);
  font-size: 1.2rem; font-weight: 800; letter-spacing: -0.5px;
  white-space: nowrap;
}
.nav-logo span { color: var(--accent-blue); }
.logo-icon {
  width: 36px; height: 36px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent-blue), #14B8A6);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 900; color: white;
  box-shadow: var(--shadow-xs);
}
.nav-links {
  display: flex; align-items: center; gap: 1.75rem;
  list-style: none;
}
.nav-links a {
  text-decoration: none; color: var(--text-secondary);
  font-size: 0.875rem; font-weight: 500;
  white-space: nowrap;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-right { display: flex; align-items: center; gap: 0.875rem; flex-shrink: 0; }

/* Language toggle */
.lang-toggle {
  display: flex; align-items: center; gap: 4px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 20px; padding: 3px;
  cursor: pointer;
}
.lang-btn {
  padding: 4px 10px; border-radius: 16px; border: none;
  font-size: 0.75rem; font-weight: 600; cursor: pointer;
  transition: var(--transition); background: transparent;
  color: var(--text-muted);
}
.lang-btn.active { background: var(--accent-blue); color: white; }
.nav-cta {
  padding: 9px 20px; border-radius: 9px;
  background: var(--accent-blue); color: white;
  text-decoration: none; font-size: 0.85rem; font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.nav-cta:hover { background: var(--accent-blue-dark); transform: translateY(-1px); box-shadow: var(--shadow-sm); }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }

/* ── HERO ─────────────────────────────────────── */
#hero {
  min-height: 92vh;
  display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,0.9fr);
  align-items: center; gap: 3rem;
  position: relative; overflow: hidden;
  padding: 130px 5% 80px;
}
@media(max-width:900px){ #hero { grid-template-columns: 1fr; gap: 3rem; padding-bottom: 60px; min-height: auto; } }
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 75% 15%, rgba(13,148,136,0.09) 0%, transparent 70%),
    radial-gradient(ellipse 50% 45% at 15% 85%, rgba(14,116,144,0.07) 0%, transparent 65%),
    linear-gradient(180deg, #FBFDFE 0%, #FFFFFF 100%);
}
.hero-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(15,23,42,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 75% 75% at 60% 35%, black 10%, transparent 90%);
  -webkit-mask-image: radial-gradient(ellipse 75% 75% at 60% 35%, black 10%, transparent 90%);
}
.hero-content { position: relative; z-index: 1; }
.hero-company-name {
  font-size: 0.95rem; font-weight: 800; letter-spacing: 3px;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: 1.2rem;
  display: flex; align-items: center; gap: 10px;
}
.hero-company-name::after {
  content: ''; flex: 1; max-width: 60px; height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), #14B8A6);
  border-radius: 2px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(13,148,136,0.08); border: 1px solid rgba(13,148,136,0.25);
  border-radius: 20px; padding: 6px 16px; margin-bottom: 2rem;
  font-size: 0.8rem; font-weight: 600; color: var(--accent-blue-dark);
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-blue); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(1.3)} }
.hero-title {
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight: 800; line-height: 1.06; letter-spacing: -0.035em;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}
.hero-title .highlight {
  background: linear-gradient(120deg, var(--accent-blue) 20%, var(--accent-cyan) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-h1-kicker {
  display: block;
  font-size: 1rem; font-weight: 700; letter-spacing: 0.3px;
  line-height: 1.3; color: var(--accent-blue-dark);
  margin-bottom: 0.7rem;
}
.hero-subtitle {
  font-size: 1.18rem; color: var(--text-secondary);
  max-width: 560px; margin-bottom: 2.5rem; font-weight: 400;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3.5rem; }

/* ── BOTONES ──────────────────────────────────── */
.btn-primary {
  padding: 14px 28px; border-radius: 10px;
  background: var(--accent-blue); color: white;
  text-decoration: none; font-weight: 700; font-size: 0.95rem;
  transition: var(--transition); display: inline-flex; align-items: center; gap: 8px;
  box-shadow: 0 1px 2px rgba(16,24,40,0.06), 0 4px 14px rgba(13,148,136,0.25);
}
.btn-primary:hover { background: var(--accent-blue-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(13,148,136,0.35); }
.btn-secondary {
  padding: 14px 28px; border-radius: 10px;
  border: 1px solid var(--border); color: var(--text-primary);
  background: var(--bg-card);
  text-decoration: none; font-weight: 600; font-size: 0.95rem;
  transition: var(--transition); display: inline-flex; align-items: center; gap: 8px;
  box-shadow: var(--shadow-xs);
}
.btn-secondary:hover { border-color: var(--accent-blue); color: var(--accent-blue-dark); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

.hero-stats {
  display: flex; gap: 2.5rem; flex-wrap: wrap;
  padding-top: 2rem; border-top: 1px solid var(--border);
}
.hero-stat .number {
  font-size: 2rem; font-weight: 800; line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.hero-stat .label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; margin-top: 4px; }

/* Hero columna visual */
.hero-visual { position: relative; z-index: 1; display: block; }
@media(max-width:900px){ .hero-visual{ display: none; } }
.tech-badges { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tech-badge {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px;
  display: flex; align-items: center; gap: 12px;
  animation: float 4s ease-in-out infinite;
  box-shadow: var(--shadow-md);
}
.tech-badge:nth-child(2){ animation-delay: 0.5s; }
.tech-badge:nth-child(3){ animation-delay: 1s; }
.tech-badge:nth-child(4){ animation-delay: 1.5s; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
.tech-badge-icon { width: 36px; height: 36px; border-radius: 8px; display:flex; align-items:center; justify-content:center; font-size:1.2rem; }
.tech-badge-text { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }
.tech-badge-title { font-size: 0.9rem; font-weight: 700; color: var(--text-primary); }

/* ── SECCIONES ────────────────────────────────── */
section { padding: 104px 5%; }
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent-blue-dark); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 1rem;
}
.section-label::before { content:''; display:block; width:24px; height:2px; background: var(--accent-blue); }
.section-title {
  font-size: clamp(1.9rem, 3.5vw, 2.9rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.15;
  margin-bottom: 1rem;
  color: var(--text-primary);
}
.section-subtitle { color: var(--text-secondary); font-size: 1.08rem; max-width: 620px; line-height: 1.7; }

/* ── ABOUT ────────────────────────────────────── */
#about { background: var(--bg-secondary); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem;
  align-items: center; margin-top: 4rem;
}
@media(max-width:900px){ .about-grid{ grid-template-columns:1fr; gap:3rem; } }
.about-text p { color: var(--text-secondary); margin-bottom: 1.2rem; font-size: 1rem; line-height: 1.8; }
.about-text strong { color: var(--text-primary); }
.about-certs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 1.5rem; }
.cert-badge {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 7px; padding: 5px 12px;
  font-size: 0.75rem; font-weight: 600; color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  box-shadow: var(--shadow-xs);
}
.about-highlights { display: flex; flex-direction: column; gap: 1.25rem; }
.highlight-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  transition: var(--transition); position: relative; overflow: hidden;
  box-shadow: var(--shadow-xs);
}
.highlight-card::before {
  content:''; position:absolute; left:0; top:0; bottom:0; width:3px;
  background: linear-gradient(180deg, var(--accent-blue), #14B8A6);
}
.highlight-card:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.highlight-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.highlight-card p { font-size: 0.875rem; color: var(--text-secondary); }

/* ── CLIENTS ──────────────────────────────────── */
#clients { background: var(--bg-secondary); }
.clients-intro { margin-top: 4rem; margin-bottom: 3rem; }
.clients-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.client-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 16px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; transition: var(--transition); min-height: 90px;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-xs);
}
.client-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.client-initials {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1rem; margin-bottom: 8px;
  font-family: 'JetBrains Mono', monospace;
}
.client-name { font-size: 0.78rem; font-weight: 600; color: var(--text-secondary); }
.client-sector { font-size: 0.68rem; color: var(--text-muted); margin-top: 2px; }
.client-logo-wrap {
  width: 120px; height: 52px; display: flex;
  align-items: center; justify-content: center;
  margin-bottom: 0.6rem;
  background: transparent;
  border-radius: 8px; padding: 8px 12px;
}
.client-logo-img {
  max-width: 96px; max-height: 36px;
  object-fit: contain; width: auto; height: auto;
  transition: transform var(--transition);
}
.client-card:hover .client-logo-img { transform: scale(1.05); }

/* ── PROJECTS ─────────────────────────────────── */
#projects { background: var(--bg-primary); }
.projects-grid { display: flex; flex-direction: column; gap: 1.5rem; margin-top: 4rem; }
.project-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
  display: grid; grid-template-columns: 1fr auto;
  gap: 2rem; align-items: start;
  transition: var(--transition); position: relative; overflow: hidden;
  box-shadow: var(--shadow-xs);
}
@media(max-width:768px){ .project-card{ grid-template-columns:1fr; } }
.project-card:hover { box-shadow: var(--shadow-md); border-color: rgba(13,148,136,0.3); }
.project-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:2px;
  background: linear-gradient(90deg, var(--accent-blue), #14B8A6);
  opacity:0; transition: var(--transition);
}
.project-card:hover::before { opacity:1; }
.project-header { display:flex; align-items:center; gap:12px; margin-bottom:1rem; flex-wrap: wrap; }
.project-client-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(13,148,136,0.07); border: 1px solid rgba(13,148,136,0.2);
  border-radius: 6px; padding: 4px 12px;
  font-size: 0.75rem; font-weight: 700; color: var(--accent-blue-dark);
  font-family: 'JetBrains Mono', monospace;
}
.project-year { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); font-family: 'JetBrains Mono', monospace; }
.project-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.75rem; }
.project-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.75; }
.project-tech { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 1.2rem; }
.project-tech span {
  font-size: 0.72rem; font-weight: 600; padding: 4px 10px;
  border-radius: 5px; background: var(--bg-secondary);
  color: var(--text-secondary); border: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace;
}
.project-meta { text-align: right; }
.project-impact {
  background: rgba(13,148,136,0.06); border: 1px solid rgba(13,148,136,0.18);
  border-radius: var(--radius); padding: 16px 20px; text-align:center;
}
.project-impact .impact-number {
  font-size: 1.8rem; font-weight: 800; line-height:1;
  color: var(--accent-blue-dark);
}
.project-impact .impact-label { font-size: 0.72rem; color: var(--text-muted); font-weight: 600; margin-top:4px; }
.portfolio-note {
  margin-top: 2rem; padding: 20px 24px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius); display: flex; align-items: center; gap: 12px;
  font-size: 0.875rem; color: var(--text-secondary);
}
.portfolio-note svg { color: var(--accent-blue); flex-shrink:0; }

/* ── TECH STACK ───────────────────────────────── */
#stack { background: var(--bg-secondary); }
.stack-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1rem; margin-top: 3rem;
}
.stack-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 12px;
  text-align: center; transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.stack-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.stack-item .stack-icon { font-size: 1.8rem; margin-bottom: 8px; }
.stack-item .stack-name { font-size: 0.75rem; font-weight: 600; color: var(--text-secondary); }
.stack-icon-img {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 10px auto;
}
.tech-icon-badge {
  width: 52px; height: 52px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  overflow: hidden;
}
.tech-icon-badge img {
  width: 28px; height: 28px; object-fit: contain; display: block;
  filter: brightness(0) invert(1);
}
.tech-icon-badge.local {
  background: #ffffff !important;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  width: 64px; height: 52px; border-radius: 10px;
  padding: 6px;
}
.tech-icon-badge.local img { width: 100%; height: 100%; object-fit: contain; filter: none; }
.tech-badge-label {
  font-size: 0.78rem; font-weight: 900; color: white;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: -0.5px; line-height: 1.1; text-align: center; padding: 4px;
}
.stack-item:hover .tech-icon-badge { transform: scale(1.1); box-shadow: var(--shadow-md); }

/* ── CONTACT ──────────────────────────────────── */
#contact { background: var(--bg-primary); }
.contact-wrapper {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; margin-top: 4rem; align-items: start;
}
@media(max-width:900px){ .contact-wrapper{ grid-template-columns:1fr; gap:3rem; } }
.contact-info h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; }
.contact-info p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.8; margin-bottom: 2rem; }
.contact-items { display: flex; flex-direction: column; gap: 1rem; }
.contact-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  text-decoration: none; color: var(--text-primary);
  transition: var(--transition); font-size: 0.9rem;
  box-shadow: var(--shadow-xs);
}
.contact-item:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.contact-item-icon {
  width: 38px; height: 38px; border-radius: 8px;
  background: rgba(13,148,136,0.1); display: flex;
  align-items: center; justify-content: center; flex-shrink:0;
}
.contact-form {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
  box-shadow: var(--shadow-md);
}

/* ── FORMULARIOS ──────────────────────────────── */
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; background: var(--bg-primary); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 16px; color: var(--text-primary);
  font-family: 'Inter', sans-serif; font-size: 0.9rem;
  transition: var(--transition); outline: none;
  box-shadow: var(--shadow-xs);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-muted); opacity: 0.7; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--accent-blue); box-shadow: 0 0 0 3px rgba(13,148,136,0.15);
}
.form-group input.valid, .form-group textarea.valid { border-color: var(--accent-blue); }
.form-group input.invalid, .form-group textarea.invalid {
  border-color: #DC2626; box-shadow: 0 0 0 3px rgba(220,38,38,0.08);
}
.form-group .field-error { font-size: 0.75rem; color: #DC2626; margin-top: 4px; display: none; }
.form-group .field-error.show { display: block; }
.form-group label .required { color: #DC2626; margin-left: 2px; }
.form-success-state { text-align: center; padding: 3rem 2rem; }
.form-success-state .success-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(13,148,136,0.1); border: 2px solid var(--accent-blue);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.5rem; font-size: 2rem;
}
.form-success-state h4 { font-size: 1.3rem; font-weight: 800; margin-bottom: 0.5rem; color: var(--text-primary); }
.form-success-state p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 1.5rem; }
.form-success-state .btn-new-msg {
  padding: 10px 24px; border-radius: 8px;
  background: transparent; border: 1px solid var(--border);
  color: var(--text-primary); font-weight: 600; font-size: 0.85rem;
  cursor: pointer; transition: var(--transition);
}
.form-success-state .btn-new-msg:hover { border-color: var(--accent-blue); color: var(--accent-blue-dark); }
.form-group textarea { min-height: 130px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
select option { background: var(--bg-primary); color: var(--text-primary); }

/* GDPR */
.form-gdpr { margin-top: 0.5rem; }
.form-gdpr .gdpr-label {
  display: flex; align-items: flex-start; gap: 0.6rem;
  font-size: 0.85rem; color: var(--text-secondary);
  cursor: pointer; line-height: 1.5; margin-bottom: 0.5rem;
}
.form-gdpr .gdpr-label input[type="checkbox"] {
  margin-top: 3px; flex-shrink: 0; width: 16px; height: 16px;
  accent-color: var(--accent-blue); cursor: pointer;
}
.form-gdpr .gdpr-text a { color: var(--accent-blue-dark); text-decoration: underline; }
.form-gdpr .gdpr-text a:hover { color: var(--text-primary); }
.form-gdpr .gdpr-info {
  font-size: 0.72rem; color: var(--text-muted); line-height: 1.5;
  margin-top: 0.3rem; padding-left: 1.8rem;
}
.form-gdpr .gdpr-info a { color: var(--text-secondary); text-decoration: underline; }
.form-gdpr.invalid .gdpr-label { color: #DC2626; }
.btn-submit {
  width: 100%; padding: 14px; border-radius: 10px;
  background: var(--accent-blue); color: white; border: none;
  font-weight: 700; font-size: 0.95rem; cursor: pointer;
  transition: var(--transition); font-family: 'Inter', sans-serif;
  box-shadow: 0 1px 2px rgba(16,24,40,0.06), 0 4px 14px rgba(13,148,136,0.25);
}
.btn-submit:hover { background: var(--accent-blue-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(13,148,136,0.35); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }
.form-feedback {
  padding: 12px 16px; border-radius: 8px; font-size: 0.875rem;
  font-weight: 600; margin-bottom: 1rem; text-align: center;
}
.form-feedback.success {
  background: rgba(13,148,136,0.08); border: 1px solid rgba(13,148,136,0.3);
  color: var(--accent-blue-dark);
}
.form-feedback.error {
  background: rgba(220,38,38,0.06); border: 1px solid rgba(220,38,38,0.25);
  color: #DC2626;
}

/* ── FOOTER ───────────────────────────────────── */
footer {
  background: #0F172A; border-top: 1px solid #1E293B;
  padding: 3.5rem 5%; text-align: center;
}
.footer-logo { font-size: 1.3rem; font-weight: 800; margin-bottom: 0.75rem; color: #F1F5F9; }
.footer-logo span { color: #2DD4BF; }
.footer-tagline { color: #94A3B8; font-size: 0.85rem; margin-bottom: 1.5rem; }
.footer-links { display: flex; justify-content: center; gap: 2rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.footer-links a { color: #94A3B8; font-size: 0.85rem; text-decoration: none; transition: color var(--transition); }
.footer-links a:hover { color: #F1F5F9; }
.footer-copy { font-size: 0.78rem; color: #64748B; }
.footer-version {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 0.75rem; font-size: 0.7rem; font-weight: 600;
  color: #64748B; font-family: 'JetBrains Mono', monospace;
  opacity: 0.7;
}
.footer-version::before {
  content: ''; display: inline-block; width: 6px; height: 6px;
  border-radius: 50%; background: #2DD4BF; opacity: 0.6;
}

/* ── ANIMACIONES ──────────────────────────────── */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  animation: fu-fallback 0.6s ease 1.5s forwards;
}
@keyframes fu-fallback { to { opacity: 1; transform: translateY(0); } }
.fade-up.visible { opacity: 1; transform: translateY(0); animation: none; }
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }

/* ── MOBILE NAV ───────────────────────────────── */
.mobile-menu {
  display: none; flex-direction: column; gap: 1rem;
  position: fixed; top: 68px; left: 0; right: 0;
  background: var(--bg-primary); border-bottom: 1px solid var(--border);
  padding: 2rem 5%; z-index: 850;
  box-shadow: var(--shadow-lg);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { color: var(--text-primary); text-decoration: none; font-weight: 500; font-size: 1rem; }
.mobile-lang {
  display: flex; gap: 8px;
  padding-top: 1rem; margin-top: 0.25rem;
  border-top: 1px solid var(--border);
}
.mobile-lang .lang-btn-m {
  flex: 1; padding: 10px 0; border-radius: 8px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 0.875rem; font-weight: 700;
  cursor: pointer; transition: var(--transition); font-family: 'Inter', sans-serif;
}
.mobile-lang .lang-btn-m.active { background: var(--accent-blue); color: white; border-color: transparent; }

/* ── HERO IMAGE ───────────────────────────────── */
.hero-img-wrap {
  position: relative; border-radius: var(--radius-lg);
  overflow: hidden; width: 100%;
  box-shadow: 0 0 0 1px var(--border), var(--shadow-lg);
}
.hero-photo {
  width: 100%; height: 500px; object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.hero-img-wrap:hover .hero-photo { transform: scale(1.03); }
.hero-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(15,23,42,0.72) 0%, transparent 55%);
  display: flex; align-items: flex-end; padding: 24px;
}
.hero-img-badges { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-img-badge {
  display: flex; flex-direction: column; align-items: center;
  background: rgba(255,255,255,0.14); backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 10px; padding: 10px 18px; min-width: 80px;
}
.hero-img-badge .badge-num { font-size: 1.4rem; font-weight: 800; color: #5EEAD4; }
.hero-img-badge .badge-lbl { font-size: 0.7rem; color: #E2E8F0; text-align: center; margin-top: 2px; }
@media(max-width:768px){ .hero-img-wrap { display: none; } }

/* ── SKIP LINK ────────────────────────────────── */
.skip-link {
  position: absolute; top: -100px; left: 50%; transform: translateX(-50%);
  background: var(--accent-blue); color: white; padding: 12px 24px;
  border-radius: 0 0 8px 8px; font-weight: 700; font-size: 0.9rem;
  z-index: 9999; transition: top 0.3s;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

/* ── CHATBOT ──────────────────────────────────── */
#obt-chat-btn {
  position: fixed; bottom: 28px; right: 28px; z-index: 9999;
  width: 60px; height: 60px; border-radius: 50%;
  background: linear-gradient(135deg, #0D9488, #14B8A6);
  border: none; cursor: pointer; box-shadow: 0 4px 20px rgba(13,148,136,0.35);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
#obt-chat-btn:hover { transform: scale(1.08); box-shadow: 0 6px 28px rgba(13,148,136,0.45); }
#obt-chat-btn svg { width: 28px; height: 28px; fill: white; }
#obt-chat-btn .chat-badge {
  position: absolute; top: -2px; right: -2px;
  width: 16px; height: 16px; border-radius: 50%;
  background: #F59E0B; border: 2px solid #FFFFFF;
  animation: pulse-badge 2s infinite;
}
@keyframes pulse-badge { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
#obt-chat-window {
  position: fixed; bottom: 100px; right: 28px; z-index: 9998;
  width: 380px; max-height: 520px; border-radius: 16px;
  background: #FFFFFF; border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: none; flex-direction: column; overflow: hidden;
  font-family: 'Inter', system-ui, sans-serif;
}
#obt-chat-window.open { display: flex; animation: chatSlideUp 0.25s ease-out; }
@keyframes chatSlideUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.chat-header {
  padding: 16px 18px; display: flex; align-items: center; gap: 12px;
  background: linear-gradient(135deg, rgba(13,148,136,0.08), rgba(20,184,166,0.04));
  border-bottom: 1px solid var(--border);
}
.chat-header-avatar {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, #0D9488, #14B8A6);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 0.75rem; color: white; flex-shrink: 0;
}
.chat-header-info h4 { margin: 0; font-size: 0.88rem; font-weight: 700; color: var(--text-primary); }
.chat-header-info p { margin: 2px 0 0; font-size: 0.7rem; color: var(--text-muted); }
.chat-close {
  margin-left: auto; background: none; border: none; cursor: pointer;
  color: var(--text-muted); font-size: 1.2rem; padding: 4px 8px; border-radius: 6px;
}
.chat-close:hover { background: var(--bg-secondary); color: var(--text-primary); }
.chat-messages {
  flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px;
  min-height: 280px; max-height: 340px;
  scrollbar-width: thin; scrollbar-color: rgba(13,148,136,0.25) transparent;
}
.chat-msg {
  max-width: 85%; padding: 10px 14px; border-radius: 14px;
  font-size: 0.82rem; line-height: 1.5; color: var(--text-primary); word-wrap: break-word;
}
.chat-msg.bot {
  align-self: flex-start;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.chat-msg.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #0D9488, #0E7490);
  border-bottom-right-radius: 4px; color: white;
}
.chat-msg.typing { font-style: italic; color: var(--text-muted); }
.chat-msg.typing::after {
  content: ''; display: inline-block; width: 4px; height: 4px;
  background: var(--text-muted); border-radius: 50%; margin-left: 4px;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 0% { opacity: 1; } 100% { opacity: 0.2; } }
.chat-input-area {
  padding: 12px 14px; border-top: 1px solid var(--border);
  display: flex; gap: 8px; background: var(--bg-primary);
}
.chat-input-area input {
  flex: 1; background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 14px; color: var(--text-primary);
  font-size: 0.82rem; font-family: inherit; outline: none;
  transition: border-color 0.2s;
}
.chat-input-area input:focus { border-color: var(--accent-blue); }
.chat-input-area input::placeholder { color: var(--text-muted); }
.chat-send {
  width: 40px; height: 40px; border-radius: 10px; border: none;
  background: linear-gradient(135deg, #0D9488, #14B8A6); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.2s; flex-shrink: 0;
}
.chat-send:disabled { opacity: 0.4; cursor: not-allowed; }
.chat-send svg { width: 18px; height: 18px; fill: white; }
.chat-powered { text-align: center; padding: 6px; font-size: 0.62rem; color: var(--text-muted); }

/* ── RESPONSIVE ───────────────────────────────── */
/* El nav se rompía en anchos medios: pasamos a hamburguesa antes (1024px) */
@media(max-width:1024px){
  .nav-links, .nav-cta, nav .lang-toggle { display: none; }
  .hamburger { display: flex; }
}
@media(max-width:900px){
  section { padding: 70px 5%; }
  .hero-grid-layout { grid-template-columns: 1fr; }
}
@media(max-width:768px){
  .hero-content { max-width: 100%; }
  .hero-title { font-size: clamp(2rem, 8vw, 3.2rem); }
  .hero-stats { gap: 1rem; flex-wrap: wrap; }
  .hero-stat .number { font-size: 1.6rem; }
  .tech-badges { grid-template-columns: 1fr; gap: 12px; }
  .clients-grid { grid-template-columns: repeat(2, 1fr); }
  .stack-grid { grid-template-columns: repeat(3, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; gap: 1rem; justify-content: center; }
}
@media (max-width: 480px) {
  .hero-stats { justify-content: flex-start; gap: 1.5rem; }
  .hero-badge { font-size: 0.75rem; }
  .clients-grid { grid-template-columns: repeat(2, 1fr); }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .about-certs { gap: 8px; }
  #obt-chat-window { width: calc(100vw - 24px); right: 12px; bottom: 90px; max-height: 70vh; }
  #obt-chat-btn { bottom: 18px; right: 18px; width: 54px; height: 54px; }
}

/* ════════════════════════════════════════════════
   DINAMISMO — aurora, marquee, glow, contadores
   ════════════════════════════════════════════════ */

/* ── AURORA ANIMADA (hero) ────────────────────── */
.hero-bg::before, .hero-bg::after {
  content: ''; position: absolute; border-radius: 50%;
  filter: blur(90px); opacity: 0.55; will-change: transform;
}
.hero-bg::before {
  width: 560px; height: 560px; top: -180px; right: -80px;
  background: radial-gradient(circle at 30% 30%, rgba(13,148,136,0.35), rgba(14,116,144,0.18) 60%, transparent 75%);
  animation: aurora-a 16s ease-in-out infinite alternate;
}
.hero-bg::after {
  width: 480px; height: 480px; bottom: -200px; left: -120px;
  background: radial-gradient(circle at 70% 70%, rgba(99,102,241,0.18), rgba(13,148,136,0.16) 55%, transparent 75%);
  animation: aurora-b 20s ease-in-out infinite alternate;
}
@keyframes aurora-a {
  0%   { transform: translate(0,0) scale(1); }
  50%  { transform: translate(-90px,60px) scale(1.15); }
  100% { transform: translate(40px,-30px) scale(0.95); }
}
@keyframes aurora-b {
  0%   { transform: translate(0,0) scale(1); }
  50%  { transform: translate(80px,-50px) scale(1.2); }
  100% { transform: translate(-50px,30px) scale(1); }
}

/* Gradiente animado en el titular */
.hero-title .highlight {
  background: linear-gradient(110deg, #0D9488 10%, #0E7490 35%, #6366F1 60%, #0D9488 90%);
  background-size: 250% 100%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-shift 7s ease-in-out infinite alternate;
}
@keyframes gradient-shift { from { background-position: 0% 50%; } to { background-position: 100% 50%; } }

/* Orbes decorativos en secciones alternas */
#about, #stack {
  position: relative;
  background:
    radial-gradient(ellipse 45% 40% at 105% 0%, rgba(13,148,136,0.06), transparent 70%),
    radial-gradient(ellipse 40% 45% at -5% 100%, rgba(99,102,241,0.05), transparent 70%),
    var(--bg-secondary);
}
#clients {
  background:
    radial-gradient(ellipse 50% 45% at -5% 0%, rgba(14,116,144,0.05), transparent 70%),
    var(--bg-secondary);
}
#contact {
  background:
    radial-gradient(ellipse 55% 50% at 110% 100%, rgba(13,148,136,0.07), transparent 70%),
    var(--bg-primary);
}

/* ── MARQUEE DE LOGOS ─────────────────────────── */
.logo-marquee {
  position: relative; overflow: hidden;
  padding: 28px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
  mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
}
.logo-marquee-track {
  display: flex; align-items: center; gap: 4.5rem;
  width: max-content;
  animation: marquee 32s linear infinite;
}
.logo-marquee:hover .logo-marquee-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.logo-marquee-track img {
  height: 34px; width: auto; object-fit: contain;
  opacity: 0.95;
  transition: opacity 0.25s, transform 0.25s;
}
.logo-marquee-track img:hover { opacity: 1; transform: scale(1.1); }
.logo-marquee-label {
  text-align: center; font-size: 0.72rem; font-weight: 700;
  letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 14px;
}

/* ── GLOW QUE SIGUE AL CURSOR ─────────────────── */
.glow-card { position: relative; }
.glow-card::after {
  content: ''; position: absolute; inset: 0;
  border-radius: inherit; pointer-events: none;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(13,148,136,0.09), transparent 65%);
  opacity: 0; transition: opacity 0.3s;
}
.glow-card:hover::after { opacity: 1; }

/* Respeto a usuarios con movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  .hero-bg::before, .hero-bg::after, .hero-title .highlight,
  .logo-marquee-track, .tech-badge { animation: none !important; }
}