/* ===================================
   Leve Vida - CSS Responsivo
   =================================== */

/* ===== RESET E VARIÁVEIS ===== */
:root {
  /* Cores */
  --primary-color: #0066cc;
  --primary-dark: #004999;
  --secondary-color: #ff6b35;
  --text-color: #333333;
  --text-light: #666666;
  --bg-color: #ffffff;
  --bg-light: #f8f9fa;
  --border-color: #e0e0e0;
  --success-color: #28a745;
  --warning-color: #ffc107;
  
  /* Tipografia */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: "Georgia", serif;
  
  /* Espaçamento */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Bordas */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Sombras */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
  
  /* Transições */
  --transition: 0.3s ease;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--text-color);
  background-color: var(--bg-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== TIPOGRAFIA ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--text-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-light);
}

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

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

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

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

/* ===== BOTÕES ===== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

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

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

.btn-secondary:hover {
  background-color: #e55a2c;
  border-color: #e55a2c;
  color: white;
}

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

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

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-block {
  display: block;
  width: 100%;
}

.btn-text {
  background: none;
  border: none;
  color: var(--primary-color);
  padding: 0;
  font-weight: 600;
}

.btn-text:hover {
  text-decoration: underline;
}

/* ===== HEADER ===== */
.site-header {
  background-color: white;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
}

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

.site-logo img {
  height: 50px;
  width: auto;
}

.desktop-nav {
  display: none;
}

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

.nav-link {
  color: var(--text-color);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

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

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

.header-cta {
  display: none;
}

/* Menu Mobile */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger-icon span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  margin: 3px 0;
  transition: all var(--transition);
}

.mobile-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: white;
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md);
  display: none;
}

.mobile-nav[aria-hidden="false"] {
  display: block;
}

.mobile-menu {
  list-style: none;
}

.mobile-menu-item {
  border-bottom: 1px solid var(--border-color);
}

.mobile-menu-link {
  display: block;
  padding: var(--spacing-sm);
  color: var(--text-color);
  font-weight: 500;
}

.mobile-social {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

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

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

.social-links a:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

/* ===== HERO SECTION ===== */
.hero-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.hero-title {
  font-size: 2.5rem;
  color: white;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--spacing-lg);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 400px;
  margin: 0 auto var(--spacing-lg);
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.badge-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
}

/* ===== FEATURES SECTION ===== */
.features-section {
  padding: var(--spacing-xxl) 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-xl);
}

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

.feature-card {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
}

/* ===== POSTS SECTION ===== */
.latest-posts-section,
.blog-list {
  padding: var(--spacing-xxl) 0;
  background-color: var(--bg-light);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

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

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

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.post-image {
  position: relative;
  overflow: hidden;
  height: 250px;
}

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

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

.post-badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background-color: var(--primary-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
}

.post-content {
  padding: var(--spacing-md);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
}

.post-category {
  background-color: var(--bg-light);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.post-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.post-title a {
  color: var(--text-color);
}

.post-title a:hover {
  color: var(--primary-color);
}

.post-excerpt {
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
}

.post-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.read-more {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* ===== EBOOK CTA SECTION ===== */
.ebook-cta-section {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  color: white;
  padding: var(--spacing-xxl) 0;
}

.ebook-cta-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  align-items: center;
}

.ebook-text h2 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.ebook-benefits {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.ebook-benefits li {
  padding: 0.5rem 0;
  font-size: 1.125rem;
}

.ebook-price {
  display: flex;
  flex-direction: column;
  margin: var(--spacing-md) 0;
}

.price-label {
  font-size: 1rem;
  opacity: 0.9;
}

.price-value {
  font-size: 3rem;
  font-weight: 700;
}

.ebook-image img {
  max-width: 300px;
  filter: drop-shadow(0 10px 20px rgba(0,0,0,0.3));
}

/* ===== TESTIMONIALS ===== */
.testimonials-section {
  padding: var(--spacing-xxl) 0;
}

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

.testimonial-card {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.testimonial-rating {
  color: #ffc107;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
}

.testimonial-author strong {
  display: block;
  color: var(--text-color);
}

.testimonial-author span {
  font-size: 0.875rem;
  color: var(--text-light);
}

/* ===== NEWSLETTER SECTION ===== */
.newsletter-section {
  background-color: var(--primary-color);
  color: white;
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.newsletter-content h2 {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.newsletter-content p {
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--spacing-md);
}

.newsletter-form-inline {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 500px;
  margin: 0 auto var(--spacing-sm);
}

.newsletter-form-inline input {
  padding: 0.75rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
}

.newsletter-note {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.8);
}

/* ===== FOOTER ===== */
.site-footer {
  background-color: #2c3e50;
  color: rgba(255,255,255,0.8);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-column h3 {
  color: white;
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255,255,255,0.8);
}

.footer-links a:hover {
  color: white;
}

.social-icons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.newsletter-form input {
  padding: 0.75rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.875rem;
}

.footer-legal {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.footer-legal a {
  color: rgba(255,255,255,0.8);
}

/* ===== SCROLL TO TOP ===== */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-4px);
}

/* ===== RESPONSIVE ===== */
@media (min-width: 768px) {
  .desktop-nav {
    display: block;
  }
  
  .header-cta {
    display: block;
  }
  
  .mobile-menu-toggle,
  .mobile-nav {
    display: none;
  }
  
  .hero-cta {
    flex-direction: row;
    max-width: none;
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .ebook-cta-content {
    flex-direction: row;
    text-align: left;
  }
  
  .newsletter-form-inline {
    flex-direction: row;
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .posts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-content {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .hero-title {
    font-size: 3rem;
  }
}

/* ===== UTILITÁRIOS ===== */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-md); }