/* =============================================
   VISION DIGITAL - LANDING PAGE
   Paleta: Azul noche + Blanco + Azul electrico
   ============================================= */

/* --- CSS Variables --- */
:root {
  --bg-primary: #060B18;
  --bg-secondary: #0B1120;
  --bg-tertiary: #111B2E;
  --bg-card: #131E33;
  --bg-card-hover: #182540;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --accent: #4F8CFF;
  --accent-light: #7BAFFF;
  --accent-glow: rgba(79, 140, 255, 0.25);
  --accent-soft: rgba(79, 140, 255, 0.10);
  --border: rgba(79, 140, 255, 0.12);
  --border-light: rgba(148, 163, 184, 0.10);
  --white: #FFFFFF;
  --nav-height: 72px;
  --max-width: 1200px;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul {
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* --- Section Titles --- */
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 580px;
  margin: 0 auto 56px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-primary:hover::after {
  opacity: 1;
}

.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  box-shadow: 0 8px 32px rgba(79, 140, 255, 0.35), 0 0 0 8px rgba(79, 140, 255, 0.05);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(6, 11, 24, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  transition: color var(--transition);
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  transition: color var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* =============================================
   SCROLL PROGRESS BAR
   ============================================= */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light), #6366F1);
  z-index: 1002;
  transition: width 0.15s linear;
  border-radius: 0 2px 2px 0;
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 750px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(79, 140, 255, 0.25);
  border-radius: 100px;
  padding: 8px 20px;
  margin-bottom: 28px;
}

.hero-logo {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--text-primary) 0%, #94A3B8 40%, var(--accent-light) 50%, #94A3B8 60%, var(--text-primary) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}

@keyframes shimmer {
  from { background-position: 0% center; }
  to { background-position: 200% center; }
}

.hero-tagline {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 16px;
  max-width: 620px;
  margin-inline: auto;
}

.hero-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

/* --- Hero Background Decorations --- */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
}

.hero-glow--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79, 140, 255, 0.3), transparent);
  top: -200px;
  right: -150px;
  animation: floatGlow 8s ease-in-out infinite;
}

.hero-glow--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(79, 140, 255, 0.15), transparent);
  bottom: -100px;
  left: -100px;
  animation: floatGlow 10s ease-in-out infinite reverse;
}

@keyframes floatGlow {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(30px, -20px); }
  66% { transform: translate(-20px, 10px); }
}

.hero-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(79, 140, 255, 0.08);
}

.hero-ring--1 {
  width: 500px;
  height: 500px;
  top: 15%;
  left: -8%;
  animation: rotateSlow 30s linear infinite;
}

.hero-ring--2 {
  width: 300px;
  height: 300px;
  bottom: 20%;
  right: -5%;
  border-color: rgba(79, 140, 255, 0.05);
  animation: rotateSlow 25s linear infinite reverse;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79, 140, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 140, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.6;
}

.hero-dot {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.3;
}

.hero-dot--1 { top: 20%; left: 15%; animation: pulse 3s ease-in-out infinite; }
.hero-dot--2 { top: 60%; right: 20%; animation: pulse 3s ease-in-out 1s infinite; }
.hero-dot--3 { bottom: 25%; left: 60%; animation: pulse 3s ease-in-out 2s infinite; }

.hero-triangle {
  position: absolute;
  width: 0;
  height: 0;
  border-left: 12px solid transparent;
  border-right: 12px solid transparent;
  border-bottom: 20px solid rgba(79, 140, 255, 0.06);
  pointer-events: none;
}

.hero-triangle--1 {
  top: 12%;
  left: 8%;
  animation: spinFloat 14s linear infinite;
}

.hero-triangle--2 {
  top: 70%;
  right: 10%;
  border-bottom-color: rgba(79, 140, 255, 0.04);
  animation: spinFloat 18s linear infinite reverse;
}

.hero-line {
  position: absolute;
  pointer-events: none;
}

.hero-line--1 {
  width: 180px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 140, 255, 0.12), transparent);
  top: 30%;
  right: 12%;
  animation: lineSway 8s ease-in-out infinite;
}

.hero-line--2 {
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 140, 255, 0.08), transparent);
  top: 55%;
  left: 8%;
  animation: lineSway 10s ease-in-out 2s infinite;
}

@keyframes spinFloat {
  from { transform: rotate(0deg) translateY(0); }
  50% { transform: rotate(180deg) translateY(-20px); }
  to { transform: rotate(360deg) translateY(0); }
}

@keyframes lineSway {
  0%, 100% { transform: translateX(0) scaleX(1); opacity: 0.6; }
  50% { transform: translateX(20px) scaleX(0.7); opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.5); }
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-scroll-indicator span {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid rgba(148, 163, 184, 0.3);
  border-radius: 100px;
  position: relative;
  animation: fadeIndicator 2s ease-in-out infinite;
}

.hero-scroll-indicator span::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  border-radius: 100px;
  background: var(--accent);
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollDot {
  0% { top: 8px; opacity: 1; }
  100% { top: 22px; opacity: 0; }
}

@keyframes fadeIndicator {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* =============================================
   PROPUESTA DE VALOR
   ============================================= */
.propuesta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 16px;
}

.propuesta-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.propuesta-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, var(--accent) 50%, transparent 60%);
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.propuesta-card:hover::before {
  opacity: 1;
  animation: borderGlow 3s linear infinite;
}

.propuesta-card:hover {
  border-color: transparent;
  background: var(--bg-card-hover);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(79, 140, 255, 0.08);
}

@keyframes borderGlow {
  0% { background-position: 0% 0%; }
  100% { background-position: 300% 300%; }
}

.propuesta-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 1.5rem;
  color: var(--accent);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.propuesta-card:hover .propuesta-icon {
  background: var(--accent);
  color: var(--white);
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 0 30px var(--accent-glow);
}

.propuesta-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.propuesta-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* =============================================
   SERVICIOS
   ============================================= */
.servicios {
  background: var(--bg-secondary);
}

.servicios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.servicio-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.servicio-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(105deg, transparent 40%, rgba(79, 140, 255, 0.04) 50%, transparent 60%);
  transition: left 0.6s ease;
}

.servicio-card:hover::after {
  left: 100%;
}

.servicio-card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.servicio-card:hover .servicio-icon {
  background: var(--accent);
  color: var(--white);
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--accent-glow);
}

.servicio-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 16px;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.servicio-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.servicio-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* =============================================
   POR QUE VISION DIGITAL
   ============================================= */
.por-que-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.por-que-card {
  display: flex;
  gap: 20px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.por-que-card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.por-que-card:hover .por-que-icon {
  background: var(--accent);
  color: var(--white);
  transform: rotate(-8deg) scale(1.1);
}

.por-que-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.por-que-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.por-que-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Stats */
.por-que-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
  padding: 48px 0 0;
  border-top: 1px solid var(--border);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-number {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--accent);
  line-height: 1;
}

.stat-value {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-left: 2px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* =============================================
   PROCESO DE TRABAJO
   ============================================= */
.proceso {
  background: var(--bg-secondary);
}

.timeline {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  background: var(--border);
}

.timeline-step {
  display: flex;
  align-items: flex-start;
  gap: 48px;
  margin-bottom: 48px;
  position: relative;
}

.timeline-step:last-child {
  margin-bottom: 0;
}

.timeline-step:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  z-index: 2;
  position: relative;
  transition: all var(--transition);
}

.timeline-step:hover .timeline-number {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 0 24px var(--accent-glow);
}

.timeline-content {
  flex: 1;
  max-width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  transition: all var(--transition);
}

.timeline-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* =============================================
   CTA FINAL
   ============================================= */
.cta-final {
  position: relative;
  text-align: center;
  padding: 100px 24px;
  background: var(--bg-tertiary);
  overflow: hidden;
}

.cta-bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(79, 140, 255, 0.12), transparent 70%);
  pointer-events: none;
}

.cta-final h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 36px;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-location {
  margin-top: 28px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  margin-bottom: 24px;
}

.footer-brand {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.footer-contact {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-link i {
  color: var(--accent);
  font-size: 1rem;
}

.footer-link:hover {
  color: var(--accent);
}

.footer-location {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* =============================================
   WHATSAPP FLOATING
   ============================================= */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.4);
  transition: all var(--transition);
  animation: pulseWhatsApp 2s ease-in-out infinite;
}

.whatsapp-float::before,
.whatsapp-float::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.4);
  animation: ringPulse 2s ease-out infinite;
}

.whatsapp-float::after {
  animation-delay: 0.5s;
}

@keyframes pulseWhatsApp {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes ringPulse {
  0% { transform: scale(0.9); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

.whatsapp-float:hover {
  transform: scale(1.15);
  box-shadow: 0 12px 36px rgba(37, 211, 102, 0.55);
  animation: none;
}

.whatsapp-float:hover::before,
.whatsapp-float:hover::after {
  animation: none;
}

/* =============================================
   SECTION PARTICLES BACKGROUND
   ============================================= */
.particles-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.particles-bg span {
  position: absolute;
  display: block;
  width: 3px;
  height: 3px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 8s linear infinite;
}

.particles-bg span:nth-child(1) { left: 5%;  animation-delay: 0s;    animation-duration: 7s; }
.particles-bg span:nth-child(2) { left: 15%; animation-delay: 1s;    animation-duration: 9s; }
.particles-bg span:nth-child(3) { left: 25%; animation-delay: 2s;    animation-duration: 6s; }
.particles-bg span:nth-child(4) { left: 35%; animation-delay: 0.5s;  animation-duration: 8s; }
.particles-bg span:nth-child(5) { left: 45%; animation-delay: 3s;    animation-duration: 10s; }
.particles-bg span:nth-child(6) { left: 55%; animation-delay: 1.5s;  animation-duration: 7.5s; }
.particles-bg span:nth-child(7) { left: 65%; animation-delay: 2.5s;  animation-duration: 8.5s; }
.particles-bg span:nth-child(8) { left: 75%; animation-delay: 0.8s;  animation-duration: 6.5s; }
.particles-bg span:nth-child(9) { left: 85%; animation-delay: 3.5s;  animation-duration: 9.5s; }
.particles-bg span:nth-child(10) { left: 92%; animation-delay: 1.8s; animation-duration: 7.8s; }

@keyframes particleFloat {
  0% { top: 100%; opacity: 0; transform: translateX(0); }
  10% { opacity: 0.4; }
  90% { opacity: 0.3; }
  100% { top: -5%; opacity: 0; transform: translateX(40px); }
}

/* =============================================
   SCROLL REVEAL ANIMATIONS (Enhanced)
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reveal variants */
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered delays for grid children */
.propuesta-card:nth-child(1).reveal,
.propuesta-card:nth-child(1).reveal-scale { --delay: 0ms; }
.propuesta-card:nth-child(2).reveal,
.propuesta-card:nth-child(2).reveal-scale { --delay: 100ms; }
.propuesta-card:nth-child(3).reveal,
.propuesta-card:nth-child(3).reveal-scale { --delay: 200ms; }

.propuesta-card.reveal.visible,
.propuesta-card.reveal-scale.visible {
  transition-delay: var(--delay, 0ms);
}

.servicio-card:nth-child(1).reveal,
.servicio-card:nth-child(1).reveal-scale  { --delay: 0ms; }
.servicio-card:nth-child(2).reveal,
.servicio-card:nth-child(2).reveal-scale  { --delay: 60ms; }
.servicio-card:nth-child(3).reveal,
.servicio-card:nth-child(3).reveal-scale  { --delay: 120ms; }
.servicio-card:nth-child(4).reveal,
.servicio-card:nth-child(4).reveal-scale  { --delay: 180ms; }
.servicio-card:nth-child(5).reveal,
.servicio-card:nth-child(5).reveal-scale  { --delay: 240ms; }
.servicio-card:nth-child(6).reveal,
.servicio-card:nth-child(6).reveal-scale  { --delay: 300ms; }
.servicio-card:nth-child(7).reveal,
.servicio-card:nth-child(7).reveal-scale  { --delay: 360ms; }
.servicio-card:nth-child(8).reveal,
.servicio-card:nth-child(8).reveal-scale  { --delay: 420ms; }
.servicio-card:nth-child(9).reveal,
.servicio-card:nth-child(9).reveal-scale  { --delay: 480ms; }

.por-que-card:nth-child(1).reveal-left { --delay: 0ms; }
.por-que-card:nth-child(2).reveal-right { --delay: 100ms; }
.por-que-card:nth-child(3).reveal-left { --delay: 200ms; }
.por-que-card:nth-child(4).reveal-right { --delay: 300ms; }

.timeline-step:nth-child(1).reveal { --delay: 0ms; }
.timeline-step:nth-child(2).reveal { --delay: 150ms; }
.timeline-step:nth-child(3).reveal { --delay: 300ms; }
.timeline-step:nth-child(4).reveal { --delay: 450ms; }

/* Generic staggered delay for .visible on variant classes */
.reveal-scale.visible,
.reveal-left.visible,
.reveal-right.visible {
  transition-delay: var(--delay, 0ms);
}

/* =============================================
   RESPONSIVE - Tablet
   ============================================= */
@media (max-width: 1024px) {
  .servicios-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .propuesta-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .propuesta-card {
    padding: 28px 20px;
  }

  .por-que-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
}

/* =============================================
   RESPONSIVE - Mobile
   ============================================= */
@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  /* Nav mobile */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: rgba(11, 17, 32, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-left: 1px solid var(--border);
  }

  .nav-links.active {
    right: 0;
  }

  .nav-link {
    font-size: 1.1rem;
  }

  /* Hero */
  .hero-content {
    padding: 0 16px;
  }

  /* Propuesta */
  .propuesta-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Servicios */
  .servicios-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .servicio-card {
    padding: 24px 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
  }

  .servicio-icon {
    margin-bottom: 0;
    flex-shrink: 0;
  }

  /* Por que */
  .por-que-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .por-que-card {
    padding: 24px;
    flex-direction: column;
    gap: 16px;
  }

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

  .stat-number {
    font-size: 2.25rem;
  }

  /* Timeline */
  .timeline::before {
    left: 28px;
  }

  .timeline-step,
  .timeline-step:nth-child(even) {
    flex-direction: row;
    gap: 20px;
  }

  .timeline-number {
    width: 44px;
    height: 44px;
    font-size: 1.1rem;
  }

  .timeline-content {
    max-width: none;
    padding: 20px 20px;
  }

  /* CTA */
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cta-buttons .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  /* Footer */
  .footer-contact {
    flex-direction: column;
    gap: 10px;
  }

  /* WhatsApp float smaller on mobile */
  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    font-size: 1.4rem;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-glow--1 {
    width: 300px;
    height: 300px;
    top: -80px;
    right: -60px;
  }

  .hero-glow--2 {
    width: 200px;
    height: 200px;
  }

  .hero-ring--1 {
    width: 250px;
    height: 250px;
  }

  .hero-ring--2 {
    width: 180px;
    height: 180px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .por-que-stats {
    grid-template-columns: 1fr 1fr;
  }

  .stat-number {
    font-size: 2rem;
  }

  .timeline-content {
    padding: 18px 16px;
  }
}