/* ========================================
   Design Tokens & CSS Variables
   ======================================== */
:root {
  /* Colors */
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-text: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-border: #334155;
  --color-background: #020617;
  --color-surface: #0f172a;
  
  /* Typography */
  --font-family-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-family-mono: 'Courier New', monospace;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 42px;
  --font-size-4xl: 56px;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Header */
  --header-height: 60px;
  --header-height-mobile: 56px;
}

/* ========================================
   Global Styles
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  font-size: var(--font-size-base);
  overflow-x: hidden;
}

@media (max-width: 768px) {
  
}
/* Screen reader only text for accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ========================================
   Container & Layout
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  /* Add transition for smooth shrink effect */
  transition: all var(--transition-base);
  height: var(--header-height);
}

.header.shrink {
  height: calc(var(--header-height) * 0.75);
  padding: var(--spacing-sm) 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
  /* Add smooth transition for header shrink */
  transition: padding var(--transition-fast);
}

.header.shrink .nav-container {
  padding: var(--spacing-sm) var(--spacing-md);
}

.logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -1px;
  /* Smooth logo size transition */
  transition: font-size var(--transition-fast);
}

.header.shrink .logo {
  font-size: var(--font-size-xl);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-2xl);
  list-style: none;
}

.nav-menu a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-weight: 500;
}

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: var(--transition-fast);
}

/* Mobile Menu - Consolidated for proper mobile display */
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    flex-direction: column;
    gap: var(--spacing-sm);
    background-color: var(--color-surface);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }

  .nav-menu.active {
    max-height: 300px;
  }

  /* Hero section with increased height attached to header */
  @media (max-width: 768px) {
    #hero {
        padding-top: var(--header-height-mobile); /* Usa 56px no mobile */
    }
}
  .hero {
    margin-top: 0;
    padding-top: 60px;
    position: relative;
    height: 160vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: 100px;
    padding-top: var(--header-height);
  }

  /* Reduce orbit size to fit screen */
  .hero-images {
    width: 200px;
    height: 200px;
  }

  .orbit-item {
    width: 40px;
    height: 40px;
    font-size: 18px;
    transform: translateX(-50%) rotateY(0deg) translateZ(100px);
  }

  @keyframes orbitItem {
    0% { transform: translateX(-50%) rotateZ(0deg) translateY(-100px) rotateZ(0deg); }
    100% { transform: translateX(-50%) rotateZ(360deg) translateY(-100px) rotateZ(-360deg); }
  }

  .hero-scroll {
    display: none;
  }

  .about,
  .contact {
    padding: var(--spacing-2xl) 0;
  }

  .projects {
    padding: var(--spacing-2xl) 0;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  }

  .social-links {
    gap: var(--spacing-md);
  }

  .social-link {
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
    flex-direction: column;
  }

  .social-link i {
    font-size: 24px;
  }

  .container {
    padding: 0 var(--spacing-md);
  }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-3xl);
}

.hero-text {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -2px;
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 500px;
  line-height: 1.6;
}

/* ========================================
   Styles for logo images in hero
   ======================================== */
.tech-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: brightness(1.1) drop-shadow(0 0 8px rgba(59, 130, 246, 0.4));
}

.cta-button {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-2xl);
  background-color: var(--color-accent);
  color: var(--color-background);
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: all var(--transition-fast);
  border: 2px solid var(--color-accent);
  cursor: pointer;
  width: fit-content;
  text-align: center;
}

.cta-button:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

/* Scroll Indicator */
.hero-scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  animation: bounce 2s infinite;
}

.scroll-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.scroll-icon {
  width: 30px;
  height: 50px;
  border: 2px solid var(--color-text-secondary);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-wheel {
  width: 4px;
  height: 8px;
  background-color: var(--color-text-secondary);
  border-radius: 2px;
  animation: scroll-pulse 1.5s infinite;
}

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

@keyframes scroll-pulse {
  0%, 100% { opacity: 1; transform: translateY(0); }
  50% { opacity: 0.3; transform: translateY(8px); }
}

/* ========================================
   Hero Images Orbit
   ======================================== */
.hero-images {
  position: absolute;
  width: 400px;
  height: 400px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
}

.image-orbit {
  position: relative;
  width: 100%;
  height: 100%;
  animation: rotate 20s linear infinite;
}

.orbit-item {
  position: absolute;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-accent), rgba(59, 130, 246, 0.5));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--color-background);
  top: 0;
  left: 50%;
  transform: translateX(-50%) rotateY(0deg) translateZ(150px);
  transform-origin: 0 0 150px;
  animation: orbitItem 20s linear infinite backwards;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.orbit-item:nth-child(1) { animation-delay: calc(-20s * 0 / 4); }
.orbit-item:nth-child(2) { animation-delay: calc(-20s * 1 / 4); }
.orbit-item:nth-child(3) { animation-delay: calc(-20s * 2 / 4); }
.orbit-item:nth-child(4) { animation-delay: calc(-20s * 3 / 4); }

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

@keyframes orbitItem {
  0% { transform: translateX(-50%) rotateZ(0deg) translateY(-150px) rotateZ(0deg); }
  100% { transform: translateX(-50%) rotateZ(360deg) translateY(-150px) rotateZ(-360deg); }
}

/* ========================================
   About Section
   ======================================== */
/* ========================================
   About Section - COM SLIDESHOW DE FUNDO
   ======================================== */
   .about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    
    position: relative; 
    overflow: hidden; 
  }
  
  .about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    
    background-image: 
      url('imagens/img_slid1.jpg'), 
      url('imagens/img_slid2.jpg'), 
      url('imagens/img_slid3.jpg'), 
      url('imagens/img_slid4.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    
    animation: backgroundSlide 15s infinite ease-in-out;
    
    /* Sobreposição escura para garantir a legibilidade do texto */
    background-color: rgba(2, 6, 23, 0.9);
    mix-blend-mode: multiply;
  }
  
  /* Garante que o conteúdo fique acima do background */
  .about h2,
  .about-content,
  .skills-section {
    position: relative;
    z-index: 1; 
  }
  
  /* Keyframes para a animação do background-image */
  @keyframes backgroundSlide {
    0% { opacity: 1; background-image: url('imagens/img_slid1.jpg'); }
    20% { opacity: 1; background-image: url('imagens/img_slid1.jpg'); }
    25% { opacity: 1; background-image: url('imagens/img_slid2.jpg'); }
    45% { opacity: 1; background-image: url('imagens/img_slid2.jpg'); }
    50% { opacity: 1; background-image: url('imagens/img_slid3.jpg'); }
    70% { opacity: 1; background-image: url('imagens/img_slid3.jpg'); }
    75% { opacity: 1; background-image: url('imagens/img_slid4.jpeg'); }
    95% { opacity: 1; background-image: url('imagens/img_slid4.jpeg'); }
    100% { opacity: 1; background-image: url('imagens/img_slid1.jpg'); }
  }

.about h2,
.projects h2,
.contact h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-2xl);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.section-number {
  color: var(--color-accent);
  font-size: var(--font-size-2xl);
  font-weight: 700;
}

.about-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
  align-items: start;
}

.about-text p {
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: var(--font-size-base);
}

.about-text strong {
  color: var(--color-accent);
  font-weight: 600;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.stat-card {
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(59, 130, 246, 0.02));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(59, 130, 246, 0.03));
}

.stat-number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.skills-section {
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-2xl);
}

.skills-section h3 {
  font-size: var(--font-size-xl);
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-lg);
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  background-color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  cursor: pointer;
}

.skill-item:hover {
  border-color: var(--color-accent);
  transform: translateY(-6px);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(59, 130, 246, 0.02));
}

.skill-item i {
  font-size: 32px;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

/* Styles for skill logo images */
.skill-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  margin-bottom: var(--spacing-sm);
  filter: brightness(1.2);
}

.skill-item span {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

/* ========================================
   Projects Section
   ======================================== */
.projects {
  padding: var(--spacing-3xl) 0;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-2xl);
}

.project-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
}

.project-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-8px);
}

.project-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background-color: var(--color-primary);
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-info {
  padding: var(--spacing-lg);
}

.project-info h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.project-info p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: var(--color-primary);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  border: 1px solid var(--color-accent);
}

.project-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-fast);
  display: inline-block;
}

.project-link:hover {
  gap: var(--spacing-sm);
}

/* Styles for project cards with link wrapper */
.project-link-wrapper {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(59, 130, 246, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.github-link {
  color: var(--color-text);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-lg);
}

/* ========================================
   Contact Section
   ======================================== */
   .contact {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    }
    
    .contact-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    }
    
    /* Layout Principal: GRID para 2 COLUNAS */
    .contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr; /* Imagem/Info (1) e Formulário (1.2) */
    gap: var(--spacing-3xl);
    align-items: center; 
    }
    
    /* Coluna da Esquerda: FLEX para alinhamento vertical */
    .contact-details-and-image {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl); 
    align-items: center; /* Centraliza horizontalmente */
    text-align: center; 
    }
    
    /* Estilo do Wrapper da Imagem */
    .contact-image-wrapper {
    max-width: 300px; /* Controla o tamanho máximo da coluna da imagem */
    width: 100%;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    background-color: var(--color-primary-light); /* Fundo sutil */
    border: 1px solid var(--color-border);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5); 
    text-align: center;
    }
    
    .contact-profile-image {
    /* CONTROLE DO TAMANHO DA IMAGEM */
    width: 100%;
    height: auto;
    max-height: 250px; /* Limite explícito de altura */
    object-fit: cover;
    border-radius: 50%; /* Circular */
    margin-bottom: var(--spacing-sm);
    border: 3px solid var(--color-accent);
    }
    
    .contact-quote {
    color: var(--color-text-secondary);
    font-style: italic;
    font-size: var(--font-size-sm);
    }
    
    /* Bloco de Informações de Contato */
    .contact-info {
    text-align: center;
    margin-top: 0; 
    padding-top: 0; 
    border-top: none; 
    width: 100%;
    }
    
    .contact-label {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    display: block;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    }
    
    /* Estilos para os links sociais */
    .social-links {
    display: flex;
    flex-direction: column; /* Links em coluna no desktop */
    justify-content: center;
    gap: var(--spacing-md);
    }
    
    .social-link {
    display: flex;
    align-items: center;
    justify-content: center; 
    gap: var(--spacing-sm);
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-primary-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    }
    
    .social-link:hover {
    background-color: var(--color-accent-hover);
    color: var(--color-background);
    transform: translateY(-2px);
    border-color: var(--color-accent-hover);
    }
    
    .social-link i {
    font-size: var(--font-size-lg);
    }
    
    /* Estilos do Formulário (Ocupa a segunda coluna) */
    .contact-form {
    background-color: var(--color-primary-light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    margin: 0; 
    max-width: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    }
    
    .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    }
    
    .form-group label {
    font-weight: 600;
    color: var(--color-text);
    }
    
    .form-group input,
    .form-group textarea {
    padding: var(--spacing-md);
    background-color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-family-sans);
     font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
    }
    
    .form-group input:focus,
    .form-group textarea:focus {
     outline: none;
     border-color: var(--color-accent);
     box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }
    
    .submit-btn {
     padding: var(--spacing-md) var(--spacing-2xl);
     background-color: var(--color-accent);
     color: var(--color-background);
     border: none;
     border-radius: var(--radius-lg);
     font-weight: 600;
     font-size: var(--font-size-base);
     cursor: pointer;
     transition: all var(--transition-fast);
    }
    
    .submit-btn:hover {
     background-color: var(--color-accent-hover);
     transform: translateY(-2px);
    }

/* ========================================
   Contact Info Section
   ======================================== */
.contact-info {
  text-align: center;
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--color-border);
}

.contact-label {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  display: block;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.social-link:hover {
  background-color: rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

.social-link i {
  font-size: 18px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: var(--color-primary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  position: relative;
  overflow: hidden;
}

.footer-content {
  position: relative;
  z-index: 1;
}

.footer p {
  margin: var(--spacing-sm) 0;
}

/* Footer effect - animated gradient background */
.footer-effect {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.05) 0%,
    rgba(59, 130, 246, 0) 50%,
    rgba(59, 130, 246, 0.05) 100%
  );
  background-size: 200% 200%;
  animation: gradientShift 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* ========================================
   Responsiveness
   ======================================== */
@media (max-width: 480px) {
  :root {
    --spacing-lg: 16px;
    --spacing-md: 12px;
  }

  .nav-menu {
    gap: var(--spacing-lg);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }
}