:root {
  --primary-color: #2C3E50;
  --primary-dark: #1A252F;
  --primary-light: #3D566E;
  --secondary-color: #E74C3C;
  --accent-color: #F39C12;
  --text-color: #333333;
  --text-light: #7F8C8D;
  --bg-color: #FFFFFF;
  --bg-secondary: #ECF0F1;
  --border-color: #BDC3C7;
  
  /* Espaçamentos consistentes */
  --space-unit: 1rem;
  --space-xs: calc(0.5 * var(--space-unit));
  --space-sm: calc(0.75 * var(--space-unit));
  --space-md: calc(1.25 * var(--space-unit));
  --space-lg: calc(2 * var(--space-unit));
  --space-xl: calc(3.25 * var(--space-unit));
  --space-xxl: calc(5.25 * var(--space-unit));

  /* Tipografia responsiva */
  --text-base-size: 1rem;
  --text-scale-ratio: 1.2;
  --text-xs: calc(var(--text-base-size) / var(--text-scale-ratio));
  --text-sm: calc(var(--text-xs) * var(--text-scale-ratio));
  --text-md: calc(var(--text-sm) * var(--text-scale-ratio));
  --text-lg: calc(var(--text-md) * var(--text-scale-ratio));
  --text-xl: calc(var(--text-lg) * var(--text-scale-ratio));
  --text-xxl: calc(var(--text-xl) * var(--text-scale-ratio));
  --text-xxxl: calc(var(--text-xxl) * var(--text-scale-ratio));

  /* Efeitos */
  --shadow: 0 4px 12px rgba(44, 62, 80, 0.15);
  --shadow-hover: 0 6px 16px rgba(44, 62, 80, 0.2);
  --transition: all 0.3s ease;
  --border-radius: 10px;
}

.dark-theme {
  --primary-color: #3498DB;
  --primary-dark: #2980B9;
  --primary-light: #5DADE2;
  --secondary-color: #E74C3C;
  --accent-color: #F39C12;
  --text-color: #ECF0F1;
  --text-light: #BDC3C7;
  --bg-color: #2C3E50;
  --bg-secondary: #34495E;
  --border-color: #7F8C8D;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 6px 16px rgba(0, 0, 0, 0.4);
}

/* Reset e Estilos Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family:'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.6;
  transition: var(--transition);
}

h1, h2, h3, h4 {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 { font-size: var(--text-xxxl); }
h2 { font-size: var(--text-xxl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-sm);
  font-size: var(--text-md);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

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

/* Layout */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section-spacing {
  padding: var(--space-xxl) 0;
}

.section-header {
  margin-bottom: var(--space-xl);
  text-align: center;
}

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: calc(-1 * var(--space-xs));
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--primary-color);
}

.section-subtitle {
  color: var(--text-light);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--bg-color);
  box-shadow: var(--shadow);
  transition: var(--transition);
  padding: var(--space-sm) 0;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  font-size: var(--text-xl);
  font-weight: 700;
}

.logo span {
  color: var(--primary-color);
}

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

.nav-links a {
  font-weight: 600;
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.theme-toggle {
  background: none;
  border: none;
  font-size: var(--text-lg);
  color: var(--text-color);
  cursor: pointer;
  transition: var(--transition);
  padding: var(--space-xs);
  border-radius: 50%;
}

.theme-toggle:hover {
  color: var(--primary-color);
  transform: rotate(30deg);
}

.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  background: transparent;
  border: none;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--text-color);
  transition: var(--transition);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: 
    linear-gradient(135deg, rgba(44, 62, 80, 0.15) 0%, rgba(0, 0, 0, 0) 50%),
    linear-gradient(rgba(245, 247, 250, 0.9), rgba(236, 240, 241, 0.9)),
    url('https://source.unsplash.com/random/1600x900/?art-studio') no-repeat center center/cover;
  color: var(--primary-color);
  text-align: center;
  padding-top: 80px;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-xl);
  background-color: rgba(255, 255, 255, 0.85);
  border-radius: var(--border-radius);
  box-shadow: 0 8px 32px rgba(44, 62, 80, 0.1);
  backdrop-filter: blur(4px);
}

.hero h1 {
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.subtitle {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xl);
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-xl);
}

/* Portfolio Section */
.portfolio {
  background-color: var(--bg-secondary);
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.filter-btn {
  padding: var(--space-xs) var(--space-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-light);
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
  font-size: var(--text-sm);
}

.filter-btn:hover, .filter-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.portfolio-item {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 3/4;
  transition: var(--transition);
}

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

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(44, 62, 80, 0.8));
  padding: var(--space-md);
  color: white;
  transform: translateY(100%);
  transition: var(--transition);
  opacity: 0;
}

.portfolio-item:hover .portfolio-overlay {
  transform: translateY(0);
  opacity: 1;
}

.portfolio-item:hover img {
  transform: scale(1.05);
}

.portfolio-overlay h3 {
  margin-bottom: var(--space-xs);
}

.portfolio-overlay p {
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  opacity: 0.9;
}

/* About Section */
.about-content {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.about-text {
  flex: 1;
}

.about-image {
  flex: 1;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.skills {
  margin: var(--space-xl) 0;
}

.skills h3 {
  margin-bottom: var(--space-md);
}

.skills ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.skills li {
  position: relative;
  padding-left: var(--space-md);
}

.skills li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

/* Contact Section */
.contact {
  background-color: var(--bg-secondary);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

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

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

.form-group label {
  font-weight: 600;
  font-size: var(--text-sm);
}

.form-group input,
.form-group textarea {
  padding: var(--space-sm);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: inherit;
  transition: var(--transition);
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(44, 62, 80, 0.2);
}

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

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

.contact-info p {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.social-links {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: white;
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
}

.availability {
  background-color: var(--bg-color);
  padding: var(--space-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

/* Footer */
footer {
  background-color: var(--bg-secondary);
  padding: var(--space-xxl) 0 var(--space-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-logo a {
  font-size: var(--text-xl);
  font-weight: 700;
}

.footer-logo span {
  color: var(--primary-color);
}

.footer-links h3,
.footer-legal h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
  color: var(--text-color);
}

.footer-links li,
.footer-legal li {
  margin-bottom: var(--space-xs);
}

.footer-links a,
.footer-legal a {
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-color);
  font-size: var(--text-sm);
}

/* Botões */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 30px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  box-shadow: var(--shadow);
  font-size: var(--text-md);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: white;
  border: 2px solid white;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-sm);
}

.btn-outline:hover {
  background-color: white;
  color: var(--text-color);
}

/* Acessibilidade */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: white;
  padding: var(--space-xs) var(--space-sm);
  z-index: 100;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Responsividade */
@media (max-width: 1200px) {
  .hero h1 {
    font-size: var(--text-xxl);
  }
  
  .about-content {
    flex-direction: column-reverse;
    gap: var(--space-xl);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 992px) {
  :root {
    --text-base-size: 0.95rem;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--bg-color);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    transition: var(--transition);
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .hero h1 {
    font-size: var(--text-xl);
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
  }
}

@media (max-width: 576px) {
  :root {
    --text-base-size: 0.9rem;
    --text-scale-ratio: 1.15;
  }
  
  .hero h1 {
    font-size: var(--text-lg);
  }
  
  .subtitle {
    font-size: var(--text-md);
  }
  
  .section-title {
    font-size: var(--text-xl);
  }
  
  .skills ul {
    grid-template-columns: 1fr;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .section-spacing {
    padding: var(--space-xl) 0;
  }
}

/* Modal/Lightbox Styles */

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  overflow: auto;
  backdrop-filter: blur(5px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal.show {
  display: block;
  opacity: 1;
}

.modal-content {
  margin: auto;
  display: flex;
  flex-direction: column;
  max-width: 90%;
  max-height: 90vh;
  width: auto;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
  animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: translateY(-55%); }
  to { opacity: 1; transform: translateY(-50%); }
}

.modal-content img {
  max-height: 70vh;
  width: auto;
  margin: 0 auto;
  object-fit: contain;
  border-radius: var(--border-radius);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.modal-info {
  background-color: var(--bg-color);
  color: var(--text-color);
  padding: var(--space-md);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.close-modal {
  position: absolute;
  top: 15px;
  right: 35px;
  color: white;
  font-size: 40px;
  font-weight: bold;
  transition: var(--transition);
  cursor: pointer;
  z-index: 1;
  background: none;
  border: none;
  padding: 0;
}

.close-modal:hover,
.close-modal:focus {
  color: var(--accent-color);
  transform: scale(1.2);
}

/* Dark theme adj*/
.dark-theme .modal-info {
  background-color: var(--primary-dark);
  color: var(--text-color);
}

/* Responsividade do modal */
@media (max-width: 768px) {
  .modal-content {
      max-width: 95%;
  }
  
  .modal-content img {
      max-height: 60vh;
  }
  
  .close-modal {
      right: 20px;
      font-size: 30px;
  }
  
  .modal-info {
      padding: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .modal-content img {
      max-height: 50vh;
  }
  
  .modal-info h3 {
      font-size: var(--text-lg);
  }
  
  .modal-info p {
      font-size: var(--text-sm);
  }
}