/* Estilos Gerais */
:root {
  --primary-color: #4CAF50;
  --primary-dark: #388E3C;
  --primary-light: #A5D6A7;
  --secondary-color: #FF5722;
  --text-color: #333;
  --light-text: #666;
  --background-color: #f9f9f9;
  --white: #fff;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 80px 0;
}

h1, h2, h3, h4 {
  margin-bottom: 20px;
  line-height: 1.2;
}

h2 {
  text-align: center;
  font-size: 2.5rem;
  position: relative;
  padding-bottom: 15px;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--primary-color);
  border-radius: 2px;
}

p {
  margin-bottom: 15px;
}

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

a:hover {
  color: var(--primary-dark);
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--primary-color);
  color: var(--white);
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  text-align: center;
}

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

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

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

/* Header */
header {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

.logo h1 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 0;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin-left: 30px;
}

nav ul li a {
  color: var(--text-color);
  font-weight: 500;
  position: relative;
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

nav ul li a:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  color: var(--white);
  text-align: center;
  padding: 150px 0;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.hero .btn {
  padding: 15px 30px;
  font-size: 1.1rem;
}

/* Calculator Section */
.calculator-section {
  background-color: var(--white);
}

.calculator-container {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 50px;
}

#calorie-calculator {
  flex: 1;
  min-width: 300px;
  background-color: var(--background-color);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: 1rem;
}

.result-container {
  flex: 1;
  min-width: 300px;
  background-color: var(--background-color);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  display: none;
}

.result-container.active {
  display: block;
}

.result-box {
  background-color: var(--white);
  padding: 20px;
  border-radius: var(--border-radius);
  margin-top: 20px;
}

.result-box p {
  font-size: 1.1rem;
  margin-bottom: 15px;
}

.result-box span {
  font-weight: 600;
  color: var(--primary-color);
}

.macros {
  margin-top: 30px;
}

.macro-box {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 15px;
}

.macro-item {
  flex: 1;
  min-width: 100px;
  text-align: center;
  background-color: var(--background-color);
  padding: 15px;
  border-radius: var(--border-radius);
}

.macro-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto 10px;
}

.protein {
  background-color: #FF5722;
}

.carbs {
  background-color: #4CAF50;
}

.fat {
  background-color: #2196F3;
}

/* Recipes Section */
.recipes-section {
  background-color: var(--background-color);
}

.filter-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 40px 0;
  justify-content: center;
}

.filter-group {
  min-width: 200px;
}

.recipes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.recipe-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.recipe-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.recipe-image {
  height: 200px;
  overflow: hidden;
}

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

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

.recipe-content {
  padding: 20px;
}

.recipe-title {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.recipe-meta {
  display: flex;
  justify-content: space-between;
  color: var(--light-text);
  margin-bottom: 15px;
  font-size: 0.9rem;
}

.recipe-description {
  margin-bottom: 20px;
  color: var(--light-text);
}

.recipe-nutrition {
  display: flex;
  justify-content: space-between;
  background-color: var(--background-color);
  padding: 10px;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
}

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

.nutrition-value {
  font-weight: 600;
  color: var(--primary-color);
}

/* About Section */
.about-section {
  background-color: var(--white);
}

.about-content {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 50px;
  align-items: center;
}

.about-text {
  flex: 1;
  min-width: 300px;
}

.about-image {
  flex: 1;
  min-width: 300px;
}

.about-image img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

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

.contact-container {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 50px;
}

#contact-form {
  flex: 1;
  min-width: 300px;
  background-color: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

textarea {
  resize: vertical;
}

.contact-info {
  flex: 1;
  min-width: 300px;
  background-color: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.info-item {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.info-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-right: 15px;
}

.social-media {
  display: flex;
  gap: 15px;
  margin-top: 30px;
}

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

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

/* Footer */
footer {
  background-color: #333;
  color: var(--white);
  padding: 60px 0 20px;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo {
  flex: 1;
  min-width: 200px;
}

.footer-logo h3 {
  color: var(--primary-color);
  font-size: 1.5rem;
}

.footer-links {
  flex: 1;
  min-width: 200px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #ccc;
}

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

.footer-newsletter {
  flex: 1;
  min-width: 200px;
}

.footer-newsletter form {
  display: flex;
  margin-top: 15px;
}

.footer-newsletter input {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.footer-newsletter .btn {
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  padding: 10px 15px;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #444;
}

/* Responsividade */
@media (max-width: 768px) {
  header .container {
    flex-direction: column;
    padding: 15px;
  }
  
  nav ul {
    margin-top: 15px;
  }
  
  nav ul li {
    margin-left: 15px;
    margin-right: 15px;
  }
  
  .hero {
    padding: 100px 0;
  }
  
  .hero h2 {
    font-size: 2.2rem;
  }
  
  section {
    padding: 60px 0;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .calculator-container,
  .about-content,
  .contact-container {
    flex-direction: column;
  }
  
  .filter-container {
    flex-direction: column;
    align-items: center;
  }
  
  .filter-group {
    width: 100%;
    max-width: 400px;
  }
  
  .recipes-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 480px) {
  nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero h2 {
    font-size: 1.8rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .recipes-grid {
    grid-template-columns: 1fr;
  }
}