/* ===================================
   MULTISISTEMAS - Soluciones Tecnológicas
   Design System & Styles
   =================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary-light: #4A90D9;
  --primary: #2563EB;
  --primary-dark: #1E3A8A;
  --accent: #3B82F6;
  --dark: #0f172a;
  --dark-surface: #1e293b;
  --dark-card: #1a2332;
  --dark-border: #334155;
  --light: #f8fafc;
  --gray-400: #94a3b8;
  --gray-300: #cbd5e1;
  --gray-600: #475569;
  --white: #ffffff;
  --gradient-primary: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;
  --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.3);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font-family);
  background-color: var(--dark);
  color: var(--light);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== Section Title ===== */
.section-title { text-align: center; margin-bottom: 4rem; }
.section-title .label {
  display: inline-block; font-size: 0.85rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 3px; color: var(--accent);
  margin-bottom: 1rem; padding: 0.4rem 1.2rem;
  background: rgba(37,99,235,0.1); border-radius: var(--radius-full);
  border: 1px solid rgba(37,99,235,0.2);
}
.section-title h2 {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; line-height: 1.2;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--white), var(--gray-300));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.section-title p { font-size: 1.125rem; color: var(--gray-400); max-width: 600px; margin: 0 auto; }

/* ===== Navbar ===== */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  padding: 0.6rem 0; 
  background: rgba(15,23,42,0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(51,65,85,0.3);
  transition: all var(--transition-normal);
}
.navbar.scrolled {
  background: rgba(15,23,42,0.95);
  border-bottom: 1px solid rgba(37,99,235,0.3);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; }
.nav-logo img { 
  height: 50px; 
  width: auto; 
  border-radius: var(--radius-md); 
  filter: drop-shadow(0 0 10px rgba(37, 99, 235, 0.2)); 
}
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
  font-size: 0.95rem; font-weight: 500; color: var(--gray-400);
  position: relative; padding: 0.25rem 0; transition: color var(--transition-fast);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
  background: var(--gradient-primary); border-radius: 1px;
  transition: width var(--transition-normal);
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
  padding: 0.6rem 1.5rem !important; background: var(--gradient-primary);
  border-radius: var(--radius-full); color: var(--white) !important;
  font-weight: 600 !important; border: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast) !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 5px; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: all var(--transition-normal); }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden; padding-top: 80px;
}
.hero-carousel {
  position: absolute; inset: 0; z-index: 0;
}
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1.5s ease-in-out;
}
.hero-slide.active {
  opacity: 1;
}
.hero-slide img {
  width: 100%; height: 100%; object-fit: cover; opacity: 0.6;
  transform: scale(1.1);
}
.hero-slide.active img {
  animation: kenBurns 20s linear infinite alternate;
}
@keyframes kenBurns {
  from { transform: scale(1); }
  to { transform: scale(1.15); }
}
.hero-carousel::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(15,23,42,0.3) 0%, rgba(15,23,42,0.95) 100%);
  z-index: 1;
}
.hero-orbs {
  position: absolute; inset: 0; z-index: 0; overflow: hidden;
}
.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.4;
  animation: float-orb 15s ease-in-out infinite;
}
.hero-orb:nth-child(1) { width: 500px; height: 500px; background: var(--primary); top: -10%; right: -5%; animation-delay: 0s; }
.hero-orb:nth-child(2) { width: 350px; height: 350px; background: var(--primary-light); bottom: -5%; left: -5%; animation-delay: -5s; }
.hero-orb:nth-child(3) { width: 250px; height: 250px; background: var(--primary-dark); top: 40%; left: 30%; animation-delay: -10s; }
@keyframes float-orb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 720px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(37,99,235,0.1); border: 1px solid rgba(37,99,235,0.25);
  border-radius: var(--radius-full); padding: 0.4rem 1rem;
  font-size: 0.85rem; color: var(--accent); font-weight: 500; margin-bottom: 1.5rem;
}
.hero-badge .dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4rem); font-weight: 900; line-height: 1.1;
  margin-bottom: 1.5rem; letter-spacing: -1px;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary-light), var(--accent), var(--primary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero p { font-size: 1.2rem; color: var(--gray-400); margin-bottom: 2.5rem; max-width: 540px; line-height: 1.7; }
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.9rem 2rem; background: var(--gradient-primary);
  color: var(--white); border-radius: var(--radius-full);
  font-weight: 600; font-size: 1rem; border: none; cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(37,99,235,0.4); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.9rem 2rem; background: transparent;
  color: var(--white); border-radius: var(--radius-full);
  font-weight: 600; font-size: 1rem; border: 1px solid var(--dark-border); cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); background: rgba(37,99,235,0.05); }
.hero-stats {
  display: flex; gap: 3rem; margin-top: 4rem; padding-top: 2rem;
  border-top: 1px solid rgba(51,65,85,0.4);
}
.stat h3 { font-size: 2rem; font-weight: 800; color: var(--accent); }
.stat p { font-size: 0.85rem; color: var(--gray-400); margin-top: 0.25rem; }

/* ===== Services ===== */
.services { padding: 7rem 0; position: relative; }
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.service-card {
  position: relative; padding: 2.5rem 2rem; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(30,41,59,0.6), rgba(15,23,42,0.4));
  border: 1px solid rgba(51,65,85,0.4);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); 
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-primary); opacity: 0; transition: opacity var(--transition-normal);
}
.service-card:hover { 
  transform: translateY(-12px) scale(1.02); 
  border-color: rgba(37,99,235,0.5);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3), 0 0 20px rgba(37,99,235,0.1);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 64px; height: 64px; border-radius: var(--radius-md);
  background: rgba(37,99,235,0.1); display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem; transition: all 0.5s ease;
  position: relative;
  z-index: 2;
}
.service-icon svg { width: 32px; height: 32px; stroke: var(--accent); fill: none; stroke-width: 1.5; }
.service-card:hover .service-icon { 
  background: var(--primary); 
  transform: rotateY(180deg);
  box-shadow: 0 0 15px var(--primary);
}
.service-card:hover .service-icon svg { stroke: var(--white); }
.service-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 1rem; color: var(--white); }
.service-card p { font-size: 0.95rem; color: var(--gray-400); line-height: 1.6; }
.card-glow {
  position: absolute; width: 100%; height: 100%; top: 0; left: 0;
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(37,99,235,0.15) 0%, transparent 50%);
  opacity: 0; transition: opacity 0.3s ease; pointer-events: none;
}
.service-card:hover .card-glow { opacity: 1; }

/* ===== Logo Separator ===== */
.logo-separator {
  padding: 4rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.separator-content {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}
.separator-content img {
  max-width: 300px;
  height: auto;
  opacity: 0.8;
  filter: drop-shadow(0 0 20px rgba(37, 99, 235, 0.3));
  transition: all var(--transition-normal);
}
.separator-content:hover img {
  opacity: 1;
  transform: scale(1.05);
  filter: drop-shadow(0 0 30px rgba(37, 99, 235, 0.5));
}
.logo-separator::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(51, 65, 85, 0.5), transparent);
  top: 50%;
  left: 0;
  z-index: -1;
}

/* ===== Pricing ===== */
.pricing { padding: 7rem 0; position: relative; background: linear-gradient(180deg, var(--dark) 0%, rgba(30,41,59,0.3) 50%, var(--dark) 100%); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; align-items: start; }
.pricing-card {
  padding: 2.5rem 2rem; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(30,41,59,0.7), rgba(15,23,42,0.5));
  border: 1px solid rgba(51,65,85,0.4);
  transition: all var(--transition-normal); position: relative;
}
.pricing-card.popular {
  border-color: var(--primary); transform: scale(1.05);
  background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(30,41,59,0.7));
}
.popular-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--gradient-primary); color: var(--white);
  padding: 0.3rem 1.2rem; border-radius: var(--radius-full);
  font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
  white-space: nowrap;
}
.pricing-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.5rem; }
.pricing-card .price {
  font-size: 2.5rem; font-weight: 900; margin: 1rem 0;
  background: linear-gradient(135deg, var(--white), var(--gray-300));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.pricing-card .price span { font-size: 1rem; font-weight: 400; }
.pricing-card .price-desc { font-size: 0.9rem; color: var(--gray-400); margin-bottom: 1.5rem; }
.pricing-features { margin-bottom: 2rem; }
.pricing-features li {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.6rem 0; font-size: 0.95rem; color: var(--gray-300);
  border-bottom: 1px solid rgba(51,65,85,0.2);
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features li svg { width: 18px; height: 18px; flex-shrink: 0; }
.pricing-features li svg.check { stroke: #22c55e; }
.pricing-features li svg.x { stroke: var(--gray-600); }
.pricing-features li.disabled { color: var(--gray-600); }
.pricing-card .btn-primary, .pricing-card .btn-secondary { width: 100%; justify-content: center; }
.pricing-card:hover { transform: translateY(-5px); }
.pricing-card.popular:hover { transform: scale(1.05) translateY(-5px); }

/* ===== Contact ===== */
.contact { padding: 7rem 0; }
.contact-wrapper {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
  background: linear-gradient(135deg, rgba(30,41,59,0.6), rgba(15,23,42,0.4));
  border: 1px solid rgba(51,65,85,0.4); border-radius: var(--radius-lg);
  padding: 3rem; overflow: hidden; position: relative;
}
.contact-info h3 { font-size: 1.8rem; font-weight: 800; margin-bottom: 1rem; }
.contact-info p { color: var(--gray-400); margin-bottom: 2rem; line-height: 1.7; }
.contact-detail {
  display: flex; align-items: center; gap: 1rem; margin-bottom: 1.25rem;
}
.contact-detail-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  background: rgba(37,99,235,0.1); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-detail-icon svg { width: 20px; height: 20px; stroke: var(--accent); fill: none; stroke-width: 1.5; }
.contact-detail-text span { font-size: 0.85rem; color: var(--gray-400); display: block; }
.contact-detail-text strong { font-size: 0.95rem; color: var(--white); }
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--gray-300); }
.form-group input, .form-group textarea {
  padding: 0.8rem 1rem; border-radius: var(--radius-sm);
  background: rgba(15,23,42,0.6); border: 1px solid var(--dark-border);
  color: var(--white); font-family: var(--font-family); font-size: 0.95rem;
  transition: border-color var(--transition-fast);
  outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--gray-600); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-success {
  display: none; padding: 1rem; border-radius: var(--radius-sm);
  background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3);
  color: #22c55e; text-align: center; font-weight: 500;
}
.form-success.show { display: block; }

/* ===== Footer ===== */
.footer {
  padding: 3rem 0 1.5rem; border-top: 1px solid rgba(51,65,85,0.3);
  background: rgba(15,23,42,0.5);
}
.footer-content {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1.5rem; margin-bottom: 2rem;
}
.footer-logo { display: flex; align-items: center; }
.footer-logo img { 
  height: 55px; 
  border-radius: var(--radius-sm); 
  filter: drop-shadow(0 0 8px rgba(37, 99, 235, 0.15)); 
}
.footer-links { display: flex; gap: 2rem; }
.footer-links a { font-size: 0.9rem; color: var(--gray-400); transition: color var(--transition-fast); }
.footer-links a:hover { color: var(--white); }
.footer-bottom { text-align: center; padding-top: 1.5rem; border-top: 1px solid rgba(51,65,85,0.2); }
.footer-bottom p { font-size: 0.85rem; color: var(--gray-600); }

/* ===== Floating Bubbles ===== */
.floating-bubbles { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 999; display: flex; flex-direction: column; gap: 0.75rem; }
.bubble {
  width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3); transition: transform var(--transition-fast);
  position: relative;
}
.bubble:hover { transform: scale(1.1); }
.bubble svg { width: 28px; height: 28px; fill: white; }
.bubble-whatsapp { background: #25D366; }
.bubble-linkedin { background: #0077B5; }
.bubble::before {
  content: ''; position: absolute; inset: -4px; border-radius: 50%;
  border: 2px solid currentColor; opacity: 0; animation: bubble-pulse 3s ease-in-out infinite;
}
.bubble-whatsapp::before { border-color: #25D366; }
.bubble-linkedin::before { border-color: #0077B5; }
@keyframes bubble-pulse {
  0%, 100% { transform: scale(1); opacity: 0; }
  50% { transform: scale(1.3); opacity: 0.4; }
}

/* ===== Scroll Reveal ===== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ===== Mobile Nav ===== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: rgba(15,23,42,0.98); backdrop-filter: blur(20px);
    flex-direction: column; justify-content: center; gap: 2rem;
    transition: right var(--transition-normal); padding: 2rem;
  }
  .nav-links.open { right: 0; }
  .menu-toggle { display: flex; z-index: 1001; }
  .menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .menu-toggle.active span:nth-child(2) { opacity: 0; }
  .menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
  .nav-cta { text-align: center; }
  .hero h1 { font-size: 2.2rem; }
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
  .services-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .pricing-card.popular { transform: none; }
  .pricing-card.popular:hover { transform: translateY(-5px); }
  .contact-wrapper { grid-template-columns: 1fr; padding: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }
  .stat h3 { font-size: 1.5rem; }
  .nav-logo img { height: 50px; }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .pricing-card.popular { transform: scale(1.02); }
}

/* Overlay for mobile menu */
.nav-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 998;
  opacity: 0; pointer-events: none; transition: opacity var(--transition-normal);
}
.nav-overlay.show { opacity: 1; pointer-events: all; }