/* ================================
   CYBERPUNK AI EXPERT PORTFOLIO
   Design System & Components
   ================================ */

/* CSS Custom Properties - Design Tokens */
:root {
  /* Color Palette - Cyberpunk Theme */
  --primary-neon: #ff0080;
  --secondary-neon: #00ffff;
  --accent-purple: #8a2be2;
  --accent-pink: #ff69b4;
  --accent-blue: #4169e1;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #ff0080, #8a2be2, #4169e1);
  --gradient-secondary: linear-gradient(45deg, #00ffff, #ff69b4);
  --gradient-dark: linear-gradient(180deg, #0a0a0a, #1a1a2e, #16213e);
  --gradient-card: linear-gradient(145deg, rgba(255,0,128,0.1), rgba(138,43,226,0.1));
  
  /* Dark Theme Colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-glass: rgba(255, 255, 255, 0.08);
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #b8b8b8;
  --text-muted: #808080;
  --text-accent: #00ffff;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Orbitron', 'Inter', sans-serif;
  --font-mono: 'Fira Code', 'Consolas', monospace;
  
  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(2rem, 1.7rem + 1.5vw, 3rem);
  --text-4xl: clamp(2.5rem, 2rem + 2.5vw, 4rem);
  --text-5xl: clamp(3rem, 2.5rem + 2.5vw, 5rem);
  
  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.3);
  --shadow-neon: 0 0 20px rgba(255, 0, 128, 0.5);
  --shadow-cyber: 0 0 30px rgba(0, 255, 255, 0.3);
  
  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-base: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
  
  /* Z-Index Scale */
  --z-behind: -1;
  --z-base: 0;
  --z-elevated: 10;
  --z-modal: 50;
  --z-popover: 100;
  --z-tooltip: 200;
  --z-loading: 9999;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-secondary);
}

/* Selection Styling */
::selection {
  background: var(--primary-neon);
  color: var(--text-primary);
}

/* Focus Styling */
:focus-visible {
  outline: 2px solid var(--secondary-neon);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ================================
   TYPOGRAPHY SYSTEM
   ================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-top: 30px;
}

/* ================================
   CORREÇÃO PARA TÍTULO NO MOBILE
   ================================ */

/* Solução 1: Aumentar o margin-top do hero-title */
.hero-title {
  font-size: var(--text-5xl);
  font-weight: 900;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  margin-top: 120px; /* Aumentado de 80px para 120px */
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  margin-bottom: var(--space-2xl);
  margin-top: 11px;
}

.section-title.center {
  text-align: center;
  margin-top: 50px;
}

.title-small {
  display: block;
  font-size: var(--text-lg);
  color: var(--text-secondary);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.title-main,
.title-large {
  display: block;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 900;
}

/* ================================
   LAYOUT COMPONENTS
   ================================ */

/* Language Toggle */
.language-toggle {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: var(--z-elevated);
  display: flex;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  padding: var(--space-xs);
  gap: var(--space-xs);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn.active,
.lang-btn:hover {
  background: var(--gradient-primary);
  color: var(--text-primary);
  transform: scale(1.05);
}

/* Progress Bar */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--gradient-primary);
  z-index: var(--z-popover);
  transition: width var(--transition-fast);
  box-shadow: var(--shadow-neon);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-modal);
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);

}

.nav-brand {
  display: flex;
  flex-direction: column;
}

.brand-text {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 900;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--text-sm);
  position: relative;
  transition: all var(--transition-base);
 
}

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

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav-toggle-line {
  width: 24px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

/* Page Indicators */
.page-indicator {
  position: absolute;
  bottom: var(--space-xl);
  right: var(--space-xl);
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-accent);
  z-index: var(--z-elevated);
}

/* ================================
   SECTION LAYOUTS
   ================================ */

section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-4xl) var(--space-lg);
  overflow: hidden;
}

/* Hero Section */
.hero-section {
  background: var(--gradient-dark);
  position: relative;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: var(--z-behind);
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  z-index: var(--z-base);
}

.hero-text {
  animation: slideInLeft 1s ease-out;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.5;
}

.hero-buttons {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  animation: fadeInUp 1s ease-out 0.5s both;
}

.stat-card {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-cyber);
  border-color: var(--secondary-neon);
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  background: var(--gradient-secondary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* About Section */
.about-section {
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
}

.about-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.tech-stack {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

.tech-title {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.tech-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.tech-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.tech-icon {
  font-size: var(--text-lg);
}

.tech-name {
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.tech-level {
  font-size: var(--text-xs);
  color: var(--text-accent);
  background: rgba(0, 255, 255, 0.1);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 255, 255, 0.3);
}

/* Services Section */
.services-section {
  background: linear-gradient(225deg, var(--bg-secondary), var(--bg-tertiary));
}

.services-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.service-card {
  background: var(--gradient-card);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-neon);
  border-color: rgba(255, 0, 128, 0.5);
}

.service-icon {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-lg);
  display: block;
}

.service-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  background: var(--gradient-secondary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.service-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.service-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.feature-tag {
  background: rgba(255, 0, 128, 0.1);
  color: var(--primary-neon);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid rgba(255, 0, 128, 0.3);
}

.methodology-info {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
}

.methodology-text {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Portfolio Section */
.portfolio-section {
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-primary));
}

.portfolio-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.portfolio-card {
  background: var(--gradient-card);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.portfolio-card.featured {
  grid-row: span 2;
}

.portfolio-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-cyber);
  border-color: rgba(0, 255, 255, 0.5);
}

.portfolio-image {
  aspect-ratio: 16/9;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.portfolio-card.featured .portfolio-image {
  aspect-ratio: 16/12;
}

.image-placeholder {
  font-size: var(--text-3xl);
  font-weight: 900;
  color: var(--text-primary);
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.portfolio-info {
  padding: var(--space-xl);
}

.portfolio-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.portfolio-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.portfolio-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tech-badge {
  background: rgba(0, 255, 255, 0.1);
  color: var(--secondary-neon);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid rgba(0, 255, 255, 0.3);
}

.portfolio-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat-item {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-neon);
}

.stat-item .stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 900;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-sm);
}

.stat-item .stat-label {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Certifications Section */
.certifications-section {
  background: linear-gradient(225deg, var(--bg-primary), var(--bg-secondary));
}

.certifications-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.cert-category {
  background: var(--gradient-card);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.cert-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-cyber);
}

.cert-category-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  background: var(--gradient-secondary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.cert-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.cert-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(5px);
}

.cert-icon {
  font-size: var(--text-lg);
}

.cert-name {
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.cert-status {
  font-size: var(--text-xs);
  color: var(--text-accent);
  background: rgba(0, 255, 255, 0.1);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 255, 255, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.infrastructure-info {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
}

.infrastructure-text {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Contact Section */
.contact-section {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

.contact-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.contact-subtitle {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  background: var(--gradient-secondary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.contact-description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
}

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

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.contact-method:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-cyber);
  border-color: var(--secondary-neon);
}

.method-icon {
  font-size: var(--text-lg);
}

.method-text {
  color: var(--text-primary);
  font-weight: 500;
}

/* Contact Form */
.contact-form-container {
  background: var(--gradient-card);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
}

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

.form-group {
  position: relative;
}

.form-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-primary);
  font-size: var(--text-base);
  transition: all var(--transition-base);
  font-family: inherit;
}

.form-input:focus {
  outline: none;
  border-color: var(--secondary-neon);
  box-shadow: 0 0 0 1px var(--secondary-neon);
  background: rgba(255, 255, 255, 0.08);
}

.form-input:not(:placeholder-shown) {
  background: rgba(255, 255, 255, 0.08);
}

.form-label {
  position: absolute;
  left: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: var(--text-base);
  pointer-events: none;
  transition: all var(--transition-base);
  background: transparent;
  padding: 0 var(--space-xs);
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label {
  top: 0;
  font-size: var(--text-sm);
  color: var(--secondary-neon);
  background: var(--bg-secondary);
}

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

select.form-input {
  cursor: pointer;
}

select.form-input option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.form-error {
  display: block;
  color: var(--primary-neon);
  font-size: var(--text-sm);
  margin-top: var(--space-xs);
  margin-left: var(--space-lg);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.form-error.show {
  opacity: 1;
}

.form-submit {
  position: relative;
  overflow: hidden;
  margin-top: var(--space-md);
}

.form-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.btn-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.form-submit.loading .btn-text {
  opacity: 0;
}

.form-submit.loading .btn-loading {
  opacity: 1;
}

.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid var(--text-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.form-success {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(0, 255, 0, 0.1);
  border: 1px solid rgba(0, 255, 0, 0.3);
  border-radius: var(--radius-md);
  color: #00ff00;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-base);
}

.form-success.show {
  opacity: 1;
  transform: translateY(0);
}

.success-icon {
  font-size: var(--text-lg);
}

/* Thanks Section */
.thanks-section {
  background: var(--gradient-dark);
  text-align: center;
}

.thanks-content {
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

.thanks-title {
  font-size: var(--text-5xl);
  font-weight: 900;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-lg);
}

.thanks-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.5;
}

.thanks-cta {
  margin-bottom: var(--space-3xl);
}

.footer-info {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

.footer-separator {
  color: var(--text-muted);
}

/* ================================
   BUTTON COMPONENTS
   ================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-neon);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(255, 0, 128, 0.8);
}

.btn-secondary {
  background: transparent;
  color: var(--secondary-neon);
  border: 2px solid var(--secondary-neon);
  box-shadow: var(--shadow-cyber);
}

.btn-secondary:hover {
  background: var(--secondary-neon);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.8);
}

.btn-icon {
  font-size: var(--text-lg);
  transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  color: var(--text-primary);
  font-size: var(--text-lg);
  cursor: pointer;
  z-index: var(--z-elevated);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-neon);
}

.back-to-top.show {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 30px rgba(255, 0, 128, 0.8);
}

/* ================================
   BACKGROUND EFFECTS
   ================================ */

/* Circuit Pattern */
.circuit-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 0, 128, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 0, 128, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: circuitMove 20s linear infinite;
}

/* Data Streams */
.data-streams::before,
.data-streams::after {
  content: '';
  position: absolute;
  width: 2px;
  height: 100px;
  background: var(--gradient-primary);
  animation: dataFlow 3s linear infinite;
}

.data-streams::before {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.data-streams::after {
  top: 60%;
  right: 15%;
  animation-delay: 1.5s;
}

/* Floating Elements */
.floating-elements::before,
.floating-elements::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, var(--secondary-neon), transparent);
  animation: float 6s ease-in-out infinite;
}

.floating-elements::before {
  width: 300px;
  height: 300px;
  top: 10%;
  right: 10%;
  opacity: 0.1;
}

.floating-elements::after {
  width: 200px;
  height: 200px;
  bottom: 20%;
  left: 15%;
  opacity: 0.15;
  animation-delay: 3s;
}

/* Neural Network */
.neural-network {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 25% 25%, rgba(0, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 80px 80px;
  animation: neuralPulse 4s ease-in-out infinite;
}

/* Matrix Rain */
.matrix-rain {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 98px,
    rgba(0, 255, 0, 0.03) 100px
  );
  animation: matrixScroll 10s linear infinite;
}

/* Cyber Grid */
.cyber-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPulse 8s ease-in-out infinite;
}

/* Digital Rain */
.digital-rain::before {
  content: '01001001 01000001 01000101 01111000 01110000 01100101 01110010 01110100';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: rgba(0, 255, 255, 0.3);
  word-spacing: 2em;
  line-height: 2;
  animation: digitalFall 15s linear infinite;
  white-space: nowrap;
  overflow: hidden;
}

/* ================================
   LOADING SCREEN
   ================================ */

.loading-screen {
  position: fixed;
  inset: 0;
  background: var(--gradient-dark);
  z-index: var(--z-loading);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.5s ease-out;
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-content {
  text-align: center;
  max-width: 400px;
}

.loading-logo {
  margin-bottom: var(--space-xl);
}

.loading-text {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 900;
  background: var(--gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-lg);
}

.loading-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.loading-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transform: translateX(-100%);
  animation: loadingProgress 3s ease-out forwards;
}

.loading-status {
  margin-top: var(--space-lg);
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

/* ================================
   CURSOR EFFECTS
   ================================ */

.cursor-trail {
  position: fixed;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--primary-neon), transparent);
  pointer-events: none;
  z-index: var(--z-tooltip);
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* ================================
   ANIMATIONS
   ================================ */

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes circuitMove {
  to {
    background-position: 50px 50px;
  }
}

@keyframes dataFlow {
  0% {
    transform: translateY(-100px);
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  100% {
    transform: translateY(calc(100vh + 100px));
    opacity: 0;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes neuralPulse {
  0%, 100% {
    opacity: 0.1;
  }
  50% {
    opacity: 0.3;
  }
}

@keyframes matrixScroll {
  to {
    background-position: 0 100vh;
  }
}

@keyframes gridPulse {
  0%, 100% {
    opacity: 0.1;
  }
  50% {
    opacity: 0.3;
  }
}

@keyframes digitalFall {
  to {
    transform: translateY(100vh);
  }
}

@keyframes loadingProgress {
  to {
    transform: translateX(0);
  }
}

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

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

/* Tablet Styles */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-2xl);
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .services-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

/* Mobile Styles */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2xl);
    transition: left var(--transition-base);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active .nav-toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active .nav-toggle-line:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .nav-toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  section {
    padding: var(--space-2xl) var(--space-md);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .certifications-grid {
    grid-template-columns: 1fr;
  }
  
  .portfolio-stats {
    grid-template-columns: 1fr;
  }
  
  .tech-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-methods {
    gap: var(--space-md);
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-md);
    color: white;
  }
  
  .footer-links:a {
    text-decoration: none;
    color: white;
  }

  .language-toggle {
    top: var(--space-md);
    right: var(--space-md);
  }
  
  .page-indicator {
    bottom: var(--space-md);
    right: var(--space-md);
  }
  
  .back-to-top {
    bottom: var(--space-md);
    right: var(--space-md);
  }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 2.5rem;
    --space-4xl: 3rem;
  }
  
  /* Solução 2: Ajuste específico para mobile */
@media (max-width: 768px) {
  .hero-title {
    margin-top: 100px; /* Espaço adequado para mobile */
    font-size: var(--text-4xl);
  }
  
  /* Ajuste adicional para telas muito pequenas */
  @media (max-width: 480px) {
    .hero-title {
      margin-top: 90px; /* Ajuste para telas menores */
    }
  }
}
  
  .section-title {
    font-size: var(--text-3xl);
    margin-top: 40px;
  }
  
  .btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--text-sm);
  }
  
  .stat-card,
  .service-card,
  .portfolio-card,
  .cert-category {
    padding: var(--space-lg);
  }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .circuit-pattern,
  .cyber-grid,
  .neural-network {
    background-size: 25px 25px, 40px 40px, 40px 40px;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .loading-screen {
    display: none;
  }
}

/* Dark Mode (Default) */
@media (prefers-color-scheme: dark) {
  /* Already optimized for dark mode */
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --primary-neon: #ff00ff;
    --secondary-neon: #00ffff;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --bg-primary: #000000;
    --bg-secondary: #111111;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .language-toggle,
  .progress-bar,
  .back-to-top,
  .loading-screen,
  .cursor-trail {
    display: none !important;
  }
  
  section {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  
  .hero-background,
  .about-background,
  .services-background,
  .portfolio-background,
  .certifications-background,
  .contact-background,
  .thanks-background {
    display: none !important;
  }
}

/* ================================
   UTILITY CLASSES
   ================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden !important;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}

.pointer-events-none {
  pointer-events: none;
}

.select-none {
  user-select: none;
}

/* Focus Management */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-neon);
  color: var(--text-primary);
  padding: 8px;
  text-decoration: none;
  z-index: var(--z-tooltip);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 6px;
}

/* ================================
   PERFORMANCE OPTIMIZATIONS
   ================================ */

/* GPU Acceleration for Animations */
.hero-content,
.service-card,
.portfolio-card,
.cert-category,
.btn {
  will-change: transform;
}

/* Preload Critical Animations */
.loading-screen {
  animation: none;
}

/* Critical CSS Above the Fold */
body,
.navbar,
.hero-section {
  contain: layout style paint;
}

/* ================================
   BROWSER COMPATIBILITY
   ================================ */

/* Firefox Specific */
@-moz-document url-prefix() {
  .form-input {
    background-color: rgba(255, 255, 255, 0.05);
  }
}

/* Safari Specific */
@supports (-webkit-touch-callout: none) {
  .hero-title,
  .section-title .title-main,
  .section-title .title-large {
    background-attachment: fixed;
  }
}

/* Edge Specific */
@supports (-ms-ime-align: auto) {
  .gradient-text {
    background: var(--primary-neon);
    color: var(--primary-neon);
  }
}

@media (max-width: 768px) {
  .footer-links {
    flex-direction: column !important;
    gap: var(--space-md) !important;
    text-align: center !important;
  }
  
  .footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
    margin-bottom: var(--space-lg);
  }
  
  .thanks-section {
    padding: var(--space-2xl) var(--space-md) !important;
  }
}

/* Links brancos sem decoração */
.footer-website,
.footer-email,
.thanks-section a:not(.btn) {
  color: #ffffff !important;
  text-decoration: none !important;
}

.footer-website:hover,
.footer-email:hover,
.thanks-section a:not(.btn):hover {
  color: #00ffff !important;
  text-decoration: none !important;
}