/* ============================================
   DeiviTech - Design System
   ============================================ */

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

/* ============================================
   CSS Variables
   ============================================ */
:root {
  /* Core Palette */
  --bg-dark: #080810;
  --bg-surface: #0f0f1a;
  --bg-card: #16162a;
  --bg-hover: #1e1e35;
  
  /* Text Colors */
  --text-primary: #f5f5fc;
  --text-secondary: #9898b0;
  --text-muted: #5a5a70;
  
  /* Accent Colors - Diversificadas */
  --accent-cyan: #00d4ff;
  --accent-purple: #9d5cfa;
  --accent-green: #10e07a;
  --accent-orange: #ff7a2f;
  --accent-pink: #ff4fa0;
  --accent-yellow: #ffd03f;
  --accent-red: #ff4757;
  
  /* Gradients */
  --gradient-main: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  --gradient-fire: linear-gradient(135deg, var(--accent-orange), var(--accent-pink));
  --gradient-cool: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  --gradient-success: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
  --gradient-gold: linear-gradient(135deg, var(--accent-yellow), var(--accent-orange));
  
  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-glow-cyan: 0 0 40px rgba(0,212,255,0.25);
  --shadow-glow-purple: 0 0 40px rgba(157,92,250,0.25);
  
  /* Borders */
  --border-subtle: 1px solid rgba(255,255,255,0.05);
  --border-accent: 1px solid rgba(0,212,255,0.2);
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Fonts */
  --font-display: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.3rem); }

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-glow {
  text-shadow: 0 0 40px rgba(0,212,255,0.5);
}

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-2xl) 0;
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(8,8,16,0.85);
  backdrop-filter: blur(20px);
  border-bottom: var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 40px;
  height: 40px;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

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

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

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

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient-main);
  color: #000;
  box-shadow: var(--shadow-glow-cyan);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px rgba(0,212,255,0.4);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: var(--border-accent);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--accent-cyan);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0,212,255,0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(157,92,250,0.1), transparent),
    radial-gradient(ellipse 50% 30% at 20% 80%, rgba(16,224,122,0.08), transparent);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero h1 span {
  display: block;
}

.hero-description {
  font-size: 1.15rem;
  max-width: 700px;
  margin-bottom: var(--space-xl);
}

.hero-description strong {
  color: var(--text-primary);
}

/* Stats */
.hero-stats {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: rgba(255,255,255,0.03);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  width: fit-content;
}

.stat {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* Service Tags */
.hero-services {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.service-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.6rem 1rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.service-tag:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--accent-cyan);
}

.service-tag-icon {
  font-size: 1.1rem;
}

/* Hero CTA */
.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  margin-bottom: var(--space-sm);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  font-size: 1.05rem;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--bg-card);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  transition: all var(--transition-normal);
}

.card:hover {
  background: var(--bg-hover);
  border-color: rgba(0,212,255,0.2);
  transform: translateY(-4px);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
}

.card-icon-cyan { background: rgba(0,212,255,0.1); }
.card-icon-purple { background: rgba(157,92,250,0.1); }
.card-icon-green { background: rgba(16,224,122,0.1); }
.card-icon-orange { background: rgba(255,122,47,0.1); }
.card-icon-pink { background: rgba(255,79,160,0.1); }
.card-icon-yellow { background: rgba(255,208,63,0.1); }

.card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.2rem;
}

.card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================
   Features Grid
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

/* ============================================
   Audience / Public Cards
   ============================================ */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.audience-card {
  background: var(--bg-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-normal);
}

.audience-card:hover {
  border-color: var(--accent-purple);
  transform: translateY(-4px);
}

.audience-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.audience-card h4 {
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.audience-card p {
  font-size: 0.95rem;
}

/* ============================================
   Process Steps
   ============================================ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple), var(--accent-green));
  opacity: 0.3;
}

.process-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: var(--bg-card);
  border: 2px solid var(--accent-cyan);
  border-radius: 50%;
  color: var(--accent-cyan);
  position: relative;
  z-index: 1;
}

.process-step:nth-child(2) .step-number {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

.process-step:nth-child(3) .step-number {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.process-step h4 {
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

/* ============================================
   Pricing Cards
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-4px);
}

.pricing-card.featured {
  background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(157,92,250,0.1));
  border-color: var(--accent-cyan);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.3rem 1rem;
  background: var(--gradient-main);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #000;
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.pricing-features {
  margin: var(--space-lg) 0;
  text-align: left;
}

.pricing-features li {
  padding: var(--space-sm) 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.pricing-features li::before {
  content: '✓';
  color: var(--accent-green);
  font-weight: 600;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-info {
  background: var(--bg-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.contact-info h3 {
  margin-bottom: var(--space-lg);
}

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

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,212,255,0.1);
  border-radius: var(--radius-md);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-item-text strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.contact-item-text span,
.contact-item-text a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-item-text a:hover {
  color: var(--accent-cyan);
}

/* WhatsApp CTA */
.whatsapp-cta {
  background: linear-gradient(135deg, rgba(37,211,102,0.1), rgba(16,224,122,0.05));
  border: 1px solid rgba(37,211,102,0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
}

.whatsapp-cta h3 {
  color: #25d366;
  margin-bottom: var(--space-sm);
}

.whatsapp-cta p {
  margin-bottom: var(--space-lg);
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 1rem 2rem;
  background: #25d366;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.whatsapp-btn:hover {
  background: #20bd5a;
  transform: scale(1.02);
}

/* ============================================
   FAQ
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.faq-item {
  background: var(--bg-surface);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  background: var(--bg-hover);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent-cyan);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--bg-surface);
  border-top: var(--border-subtle);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}

.footer-brand-icon {
  width: 32px;
  height: 32px;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-copy {
  width: 100%;
  text-align: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-timestamp {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

/* ============================================
   WhatsApp Floating Button
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 99;
  opacity: 0.6;
  transition: opacity var(--transition-normal);
}

.whatsapp-float:hover {
  opacity: 1;
}

.whatsapp-float a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.25rem;
  background: #25d366;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 100px;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: all var(--transition-normal);
}

.whatsapp-float a:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 30px rgba(37,211,102,0.5);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0,212,255,0.3); }
  50% { box-shadow: 0 0 40px rgba(0,212,255,0.5); }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-glow {
  animation: glow-pulse 2s ease-in-out infinite;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

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

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 968px) {
  .nav {
    display: none;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
    width: 100%;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .process-steps::before {
    display: none;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  h1 { font-size: clamp(2rem, 8vw, 3rem); }
  h2 { font-size: clamp(1.6rem, 6vw, 2.2rem); }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .whatsapp-float a span {
    display: none;
  }
}