/* ============================================================
   VDev Solutions — style.css
   Fábrica de Software Empresarial
   Autor: VDev Solutions
   Versión: 1.0.0
   ============================================================ */

/* ---- 1. CSS VARIABLES ---- */
:root {
  /* Paleta principal */
  --blue-deepest:   #060d1a;   /* Fondo más oscuro */
  --blue-deep:      #0a1628;   /* Fondo oscuro principal */
  --blue-mid:       #0f2040;   /* Cards / secciones oscuras */
  --blue-navy:      #152a52;   /* Bordes sutiles, separadores */
  --blue-primary:   #1a3468;   /* Azul marino corporativo U de Chile */
  --blue-light:     #2b4d8c;   /* Hover states */

  /* Acento eléctrico */
  --accent:         #00c8ff;   /* Cian brillante */
  --accent-dim:     #0099cc;   /* Acento hover */
  --accent-glow:    rgba(0, 200, 255, 0.15);
  --accent-glow-strong: rgba(0, 200, 255, 0.3);

  /* Neutros */
  --white:          #ffffff;
  --gray-100:       #f0f4f8;
  --gray-200:       #dde5ef;
  --gray-400:       #8fa0b8;
  --gray-600:       #4a6080;

  /* Textos */
  --text-primary:   #e8edf5;
  --text-secondary: #8fa0b8;
  --text-muted:     #566a85;

  /* Tipografía */
  --font-display:   'Orbitron', sans-serif;
  --font-body:      'Exo 2', sans-serif;

  /* Espaciado */
  --space-xs:    0.5rem;
  --space-sm:    1rem;
  --space-md:    1.5rem;
  --space-lg:    2.5rem;
  --space-xl:    4rem;
  --space-2xl:   6rem;
  --space-3xl:   8rem;

  /* Bordes */
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-xl:   32px;

  /* Sombras */
  --shadow-sm:   0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:   0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg:   0 24px 64px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(0,200,255,0.2);

  /* Transiciones */
  --t-fast:   0.15s ease;
  --t-normal: 0.3s ease;
  --t-slow:   0.6s cubic-bezier(0.16, 1, 0.3, 1);

  /* Glassmorphism */
  --glass-bg:     rgba(15, 32, 64, 0.7);
  --glass-border: rgba(0, 200, 255, 0.12);
  --glass-blur:   blur(16px);

  /* Layout */
  --navbar-h:    72px;
  --max-width:   1200px;
}

/* ---- 2. RESET & BASE ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--blue-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: none; /* Cursor personalizado */
}

@media (pointer: coarse) {
  body { cursor: auto; }
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ---- 3. CURSOR PERSONALIZADO ---- */
.cursor-dot,
.cursor-ring {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  top: 0; left: 0;
}

.cursor-ring {
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--accent);
  opacity: 0.5;
  top: 0; left: 0;
  transition: width 0.2s, height 0.2s, opacity 0.3s;
}

body:hover .cursor-dot { opacity: 1; }
body:hover .cursor-ring { opacity: 0.5; }

a:hover ~ .cursor-ring,
button:hover ~ .cursor-ring {
  width: 48px;
  height: 48px;
}

@media (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* ---- 4. TIPOGRAFÍA ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  font-weight: 700;
}

.title-accent {
  color: var(--accent);
  position: relative;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.section-tag::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--space-md);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.75;
}

/* ---- 5. LAYOUT HELPERS ---- */
.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header .section-tag {
  justify-content: center;
}

.section-header .section-desc {
  margin: 0 auto;
}

/* ---- 6. BOTONES ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--t-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--t-fast);
}
.btn:hover::before { opacity: 1; }

.btn-primary {
  background: var(--accent);
  color: var(--blue-deepest);
  box-shadow: 0 0 24px rgba(0,200,255,0.35);
}
.btn-primary:hover {
  background: #33d4ff;
  box-shadow: 0 0 40px rgba(0,200,255,0.55);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--blue-navy);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: var(--blue-deepest);
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: all var(--t-normal);
  box-shadow: 0 0 20px rgba(0,200,255,0.25);
}
.btn-accent:hover {
  background: #33d4ff;
  box-shadow: 0 0 32px rgba(0,200,255,0.45);
  transform: translateY(-1px);
}

/* WhatsApp submit button */
.btn-whatsapp {
  background: #25d366;
  color: #fff;
  box-shadow: 0 0 24px rgba(37,211,102,0.3);
}
.btn-whatsapp:hover {
  background: #1fba57;
  box-shadow: 0 0 40px rgba(37,211,102,0.5);
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* Estado loading del botón */
.btn-loading { display: none; }
.btn.is-loading .btn-text { display: none; }
.btn.is-loading .btn-loading { display: inline; }
.btn.is-loading .btn-arrow { display: none; }

/* ---- 7. ANIMACIONES DE ENTRADA ---- */
.animate-fade-up {
  opacity: 0;
  transform: translateY(32px);
  animation: fadeUp 0.8s var(--t-slow) forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* Intersección Observer — clases para scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--t-slow), transform 0.7s var(--t-slow);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- 8. NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--navbar-h);
  transition: background var(--t-normal), box-shadow var(--t-normal), border-color var(--t-normal);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom-color: var(--glass-border);
  box-shadow: 0 4px 32px rgba(0,0,0,0.4);
}

.navbar__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  transition: opacity var(--t-fast);
}
.navbar__logo:hover { opacity: 0.85; }

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  height: 36px;
  background: var(--accent);
  color: var(--blue-deepest);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  box-shadow: 0 0 16px rgba(0,200,255,0.4);
}

.logo-text { color: var(--white); }
.logo-accent { color: var(--accent); }

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--t-fast);
  position: relative;
  padding-bottom: 4px;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--t-normal);
}
.nav-link:hover,
.nav-link.active {
  color: var(--white);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Hamburger */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--t-fast);
}
.navbar__toggle:hover { background: rgba(255,255,255,0.05); }
.navbar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--t-normal), opacity var(--t-normal);
}
.navbar__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle.open span:nth-child(2) { opacity: 0; }
.navbar__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menú móvil */
.navbar__mobile {
  display: none;
  flex-direction: column;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--space-sm) var(--space-lg) var(--space-md);
  gap: var(--space-sm);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--t-slow), padding 0.3s;
}
.navbar__mobile.open {
  display: flex;
  max-height: 400px;
}

.mobile-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: color var(--t-fast), padding-left var(--t-fast);
}
.mobile-link:hover {
  color: var(--accent);
  padding-left: 8px;
}
.mobile-cta {
  margin-top: var(--space-xs);
  background: var(--accent);
  color: var(--blue-deepest);
  text-align: center;
  font-weight: 700;
  border-radius: var(--radius-md);
  padding: 12px 24px;
  border-bottom: none;
  transition: background var(--t-normal), box-shadow var(--t-normal);
}
.mobile-cta:hover {
  background: #33d4ff;
  padding-left: 0;
  box-shadow: 0 0 24px rgba(0,200,255,0.4);
}

/* ---- 9. HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--blue-deepest);
  padding-top: var(--navbar-h);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.6;
}

/* Malla de fondo sutil */
.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,200,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 80%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 820px;
  padding: 0 var(--space-lg);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,200,255,0.08);
  border: 1px solid rgba(0,200,255,0.2);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: var(--space-md);
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,200,255,0.5); }
  50% { box-shadow: 0 0 0 6px rgba(0,200,255,0); }
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  line-height: 1.8;
}

.hero__cta {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

/* ---- Hero projects pills ---- */
.hero__projects {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.projects-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.projects-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--blue-navy);
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  transition: border-color var(--t-normal), color var(--t-normal);
}
.pill:hover {
  border-color: rgba(0,200,255,0.3);
  color: var(--text-primary);
}

.pill--accent {
  background: rgba(0,200,255,0.08);
  border-color: rgba(0,200,255,0.25);
  color: var(--accent);
}

.pill--dim {
  opacity: 0.7;
}

.pill-badge {
  background: var(--accent);
  color: var(--blue-deepest);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 100px;
  letter-spacing: 0.04em;
}

/* ---- Card tag (estado del proyecto) ---- */
.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
  padding: 4px 0;
  opacity: 0.85;
}
.card-tag::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse 2s infinite;
}

.card-tag--building {
  color: var(--text-muted);
}
.card-tag--building::before {
  background: var(--text-muted);
  animation: none;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 2;
  opacity: 0.6;
  transition: opacity var(--t-normal);
}
.hero__scroll:hover { opacity: 1; }

.scroll-text {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.scroll-arrow {
  display: block;
  width: 20px;
  height: 28px;
  border: 1.5px solid var(--text-muted);
  border-radius: 10px;
  position: relative;
}

.scroll-arrow::after {
  content: '';
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  animation: scrollBounce 1.8s infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  80% { transform: translateX(-50%) translateY(10px); opacity: 0; }
}

/* ---- 10. MÓDULOS ---- */
.modules {
  background: var(--blue-deepest);
  position: relative;
  overflow: hidden;
}

.modules::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.3;
}

.modules__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

/* Tarjeta wide ocupa columna completa en la última fila */
.module-card--wide {
  grid-column: 1 / -1;
}

/* ---- CARDS ---- */
.module-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  overflow: hidden;
  transition: transform var(--t-normal), border-color var(--t-normal), box-shadow var(--t-normal);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.module-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,200,255,0.35);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4), var(--shadow-glow);
}

/* Brillo de fondo en hover */
.card-glow {
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--t-slow);
  pointer-events: none;
}
.module-card:hover .card-glow { opacity: 1; }

/* Card destacada */
.module-card--featured {
  border-color: rgba(0,200,255,0.25);
  background: linear-gradient(135deg, rgba(15,32,64,0.9), rgba(26,52,104,0.7));
}

.card-badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: var(--accent);
  color: var(--blue-deepest);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
}

.card-badge--special {
  background: linear-gradient(90deg, var(--accent), #7b2ff7);
  color: var(--white);
}

.card-icon {
  width: 52px;
  height: 52px;
  color: var(--accent);
  margin-bottom: var(--space-md);
}
.card-icon svg { width: 100%; height: 100%; }

.card-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.card-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.card-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
  margin-bottom: var(--space-md);
}

.arm-features {
  grid-template-columns: repeat(3, 1fr);
}

.card-features li {
  font-size: 0.825rem;
  color: var(--text-muted);
  padding-left: 14px;
  position: relative;
}
.card-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.7;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--t-fast), opacity var(--t-fast);
}
.card-cta:hover {
  gap: 10px;
  opacity: 0.85;
}

/* ---- 11. NOSOTROS / PROCESO ---- */
.about {
  background: var(--blue-deep);
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 100% 50%, rgba(0,200,255,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.about__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about__text .section-title {
  margin-top: var(--space-xs);
}

.about__desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.about__pillars {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.pillar {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.pillar-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.pillar strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--white);
  margin-bottom: 2px;
}
.pillar p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Proceso */
.about__process {
  display: flex;
  flex-direction: column;
  position: relative;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: border-color var(--t-normal), transform var(--t-normal);
}

.process-step:hover {
  border-color: rgba(0,200,255,0.3);
  transform: translateX(6px);
}

.process-connector {
  width: 2px;
  height: 24px;
  background: linear-gradient(to bottom, rgba(0,200,255,0.3), rgba(0,200,255,0.1));
  margin-left: 30px;
}

.step-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.5;
  line-height: 1;
  min-width: 40px;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}
.step-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- 12. CONTACTO ---- */
.contact {
  background: var(--blue-deepest);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-navy), transparent);
}

.contact::after {
  content: '';
  position: absolute;
  top: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,200,255,0.04), transparent 70%);
  pointer-events: none;
}

.contact__layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-2xl);
  align-items: start;
  position: relative;
  z-index: 1;
}

.contact__desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.contact__channels {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.channel {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 12px 16px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  transition: border-color var(--t-normal), color var(--t-normal), transform var(--t-fast);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.channel:hover {
  border-color: rgba(0,200,255,0.3);
  color: var(--accent);
  transform: translateX(4px);
}

/* Canal WhatsApp con acento verde */
.channel--whatsapp:hover {
  border-color: rgba(37,211,102,0.4);
  color: #25d366;
}
.channel--whatsapp .channel-icon { color: #25d366; }

.channel-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--accent);
}
.channel-icon svg { width: 100%; height: 100%; }

/* Formulario */
.contact-form {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.form-group label {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}
.form-group label span { color: var(--accent); }

.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(10,22,40,0.6);
  border: 1.5px solid var(--blue-navy);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: border-color var(--t-normal), box-shadow var(--t-normal);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,200,255,0.1);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #ff4d6d;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Select custom */
.select-wrapper {
  position: relative;
}
.select-wrapper select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  padding-right: 40px;
  cursor: pointer;
}
.select-arrow {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  pointer-events: none;
}
.select-wrapper select option {
  background: var(--blue-mid);
  color: var(--text-primary);
}

.field-error {
  font-size: 0.78rem;
  color: #ff4d6d;
  min-height: 16px;
}
.field-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Success state */
.form-success {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid rgba(0,200,255,0.2);
  border-radius: var(--radius-xl);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  background: rgba(0,200,255,0.1);
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.success-icon svg { width: 28px; height: 28px; }

.form-success h3 {
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: var(--space-xs);
}
.form-success p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ---- 13. FOOTER ---- */
.footer {
  background: var(--blue-deepest);
  border-top: 1px solid var(--blue-navy);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg) var(--space-xl);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
}

.footer-logo { margin-bottom: var(--space-sm); }

.footer__brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer__links h4,
.footer__social h4 {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.footer__links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--t-fast), padding-left var(--t-fast);
}
.footer__links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.social-links {
  display: flex;
  gap: var(--space-sm);
}
.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--blue-navy);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  transition: border-color var(--t-normal), color var(--t-normal), transform var(--t-fast), box-shadow var(--t-fast);
}
.social-link svg { width: 18px; height: 18px; }
.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,200,255,0.2);
}

.footer__bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--blue-navy);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ---- 14. BACK TO TOP ---- */
.back-to-top {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: var(--blue-deepest);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity var(--t-normal), transform var(--t-normal);
  box-shadow: 0 4px 20px rgba(0,200,255,0.3);
  cursor: pointer;
}
.back-to-top svg { width: 20px; height: 20px; }
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  background: #33d4ff;
  transform: translateY(-2px);
}

/* ---- 15. SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--blue-deepest); }
::-webkit-scrollbar-thumb {
  background: var(--blue-navy);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

/* ---- 16. SELECCIÓN DE TEXTO ---- */
::selection {
  background: rgba(0,200,255,0.25);
  color: var(--white);
}

/* ================================================================
   RESPONSIVE
   ================================================================ */

/* Tablet (≤ 1024px) */
@media (max-width: 1024px) {
  .modules__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .module-card--wide {
    grid-column: 1 / -1;
  }
  .about__layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .contact__layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

/* Mobile (≤ 768px) */
@media (max-width: 768px) {
  :root {
    --navbar-h: 64px;
    --space-3xl: 5rem;
    --space-2xl: 4rem;
    --space-xl: 3rem;
  }

  .navbar__links { display: none; }
  .navbar__toggle { display: flex; }

  .hero__title { font-size: clamp(2rem, 8vw, 3rem); }
  .hero__cta { flex-direction: column; align-items: center; }

  .hero__stats { gap: var(--space-md); }
  .stat-num { font-size: 1.6rem; }

  .modules__grid { grid-template-columns: 1fr; }
  .card-features { grid-template-columns: 1fr 1fr; }
  .arm-features { grid-template-columns: 1fr 1fr; }

  .section-container { padding: var(--space-2xl) var(--space-sm); }

  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: var(--space-lg) var(--space-md); }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .footer__bottom { flex-direction: column; text-align: center; }

  .back-to-top { bottom: var(--space-sm); right: var(--space-sm); }
}

/* Extra small (≤ 480px) */
@media (max-width: 480px) {
  .hero__badge { font-size: 0.7rem; }
  .process-step { padding: var(--space-sm); }
  .stat-divider { display: none; }
}