/* ============================================
   ESTILOS PRINCIPAIS - MOBILE FIRST
   ============================================ */

/* Variáveis CSS */
:root {
  --color-primary: #2c5530;
  --color-primary-dark: #1e3a21;
  --color-secondary: #25D366;
  --color-secondary-dark: #20ba5a;
  --color-text: #333;
  --color-text-light: #666;
  --color-bg: #fff;
  --color-bg-light: #f5f5f5;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --border-radius: 4px;
  --shadow: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
}

/* ============================================
   NAVEGAÇÃO
   ============================================ */

.nav-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background: #fff;
  box-shadow: -2px 0 10px rgba(0,0,0,0.1);
  transition: right 0.3s ease;
  z-index: 1000;
  padding: 4rem 2rem 2rem;
  overflow-y: auto;
}

.nav-menu.active {
  right: 0;
}

.nav-menu ul {
  list-style: none;
}

.nav-menu li {
  margin-bottom: 1rem;
}

.nav-menu a {
  display: block;
  padding: 0.75rem;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--border-radius);
  transition: background 0.3s;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav-menu a:hover,
.nav-menu a:focus {
  background: var(--color-bg-light);
  outline: none;
}

/* Overlay quando menu aberto */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 999;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Menu toggle animado */
.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: var(--spacing-lg) var(--spacing-sm);
  text-align: center;
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   BOTÕES
   ============================================ */

.btn-primary {
  display: inline-block;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  background: var(--color-secondary);
  color: #fff;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: background 0.3s, transform 0.2s;
  min-height: 44px;
  border: none;
  cursor: pointer;
  text-align: center;
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--color-secondary-dark);
  outline: none;
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  background: transparent;
  color: var(--color-primary);
  text-decoration: none;
  border: 2px solid var(--color-primary);
  border-radius: var(--border-radius);
  transition: all 0.3s;
  min-height: 44px;
  text-align: center;
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--color-primary);
  color: #fff;
  outline: none;
}

/* ============================================
   SEÇÕES
   ============================================ */

section {
  padding: var(--spacing-lg) var(--spacing-sm);
}

section h2 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
  text-align: center;
  color: var(--color-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* ============================================
   MATERIAIS GRID
   ============================================ */

.materiais-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.material-card {
  background: var(--color-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.material-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.material-card h3 {
  padding: var(--spacing-sm);
  font-size: 1.25rem;
  color: var(--color-primary);
}

.material-card p {
  padding: 0 var(--spacing-sm) var(--spacing-sm);
  color: var(--color-text-light);
}

.material-card .btn-secondary {
  margin: 0 var(--spacing-sm) var(--spacing-sm);
  display: block;
  text-align: center;
}

/* ============================================
   BENEFÍCIOS GRID
   ============================================ */

.beneficios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.beneficio {
  text-align: center;
  padding: var(--spacing-md);
  background: var(--color-bg-light);
  border-radius: var(--border-radius);
}

.beneficio h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.beneficio p {
  color: var(--color-text-light);
}

/* ============================================
   CTA FINAL
   ============================================ */

.cta-final {
  background: var(--color-bg-light);
  text-align: center;
}

.cta-final h2 {
  margin-bottom: var(--spacing-sm);
}

.cta-final p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background: var(--color-primary-dark);
  color: #fff;
  padding: var(--spacing-lg) var(--spacing-sm);
}

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

.footer-section h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  line-height: 1.8;
}

.footer-section a:hover,
.footer-section a:focus {
  color: #fff;
  text-decoration: underline;
  outline: none;
}

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

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

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255,255,255,0.2);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

.footer-bottom p {
  margin-bottom: 0.5rem;
}

.footer-bottom a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* ============================================
   WHATSAPP FLOAT
   ============================================ */

.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  background: var(--color-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform 0.3s, box-shadow 0.3s;
  text-decoration: none;
}

.whatsapp-float:hover,
.whatsapp-float:focus {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.6);
  outline: none;
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  fill: #fff;
}

/* ============================================
   RESPONSIVE - TABLET
   ============================================ */

@media (min-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .materiais-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .beneficios-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
  
  section h2 {
    font-size: 2rem;
  }
}

/* ============================================
   RESPONSIVE - DESKTOP
   ============================================ */

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
  
  .nav-menu {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    box-shadow: none;
    padding: 0;
    overflow: visible;
  }
  
  .nav-menu ul {
    display: flex;
    gap: var(--spacing-sm);
  }
  
  .nav-menu li {
    margin-bottom: 0;
  }
  
  .nav-menu a {
    padding: 0.5rem 1rem;
    min-height: auto;
  }
  
  .hero {
    padding: var(--spacing-xl) var(--spacing-sm);
  }
  
  .hero h1 {
    font-size: 3rem;
  }
  
  .materiais-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .beneficios-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   ACESSIBILIDADE
   ============================================ */

/* Foco visível */
*:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* Reduzir animações se preferido */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   FORMULÁRIO DE CONTATO
   ============================================ */

.contato-section {
  padding: var(--spacing-lg) var(--spacing-sm);
}

.contato-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.contato-info h2,
.contato-form-wrapper h2 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.info-item {
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background: var(--color-bg-light);
  border-radius: var(--border-radius);
}

.info-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.info-item p {
  color: var(--color-text);
  line-height: 1.8;
}

.info-item a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.info-item a:hover,
.info-item a:focus {
  text-decoration: underline;
  outline: none;
}

/* Formulário */
.contact-form {
  background: var(--color-bg);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px;
  font-size: 16px; /* Evita zoom no iOS */
  border: 2px solid #ddd;
  border-radius: var(--border-radius);
  transition: border-color 0.3s;
  font-family: inherit;
  background: var(--color-bg);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group input.error,
.form-group textarea.error,
.form-group select.error {
  border-color: #dc3545;
}

.error-message {
  display: block;
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.25rem;
  min-height: 1.25rem;
}

.form-success {
  margin-top: var(--spacing-md);
  padding: var(--spacing-sm);
  background: #d4edda;
  border: 1px solid #c3e6cb;
  border-radius: var(--border-radius);
  color: #155724;
  text-align: center;
}

.form-success p {
  margin: 0;
}

/* Mapa */
.mapa-wrapper {
  margin-top: var(--spacing-lg);
}

.mapa-wrapper h2 {
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.mapa-container {
  width: 100%;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.mapa-container iframe {
  width: 100%;
  height: 400px;
  border: 0;
  display: block;
}

/* Responsive - Formulário */
@media (min-width: 768px) {
  .contato-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .mapa-container iframe {
    height: 450px;
  }
}

@media (min-width: 1024px) {
  .contato-grid {
    gap: var(--spacing-xl);
  }
  
  .mapa-container iframe {
    height: 500px;
  }
}

/* ============================================
   UTILITÁRIOS
   ============================================ */

.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;
}

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ============================================
   PÁGINA SOBRE
   ============================================ */

.sobre-section {
  padding: var(--spacing-lg) var(--spacing-sm);
}

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

.sobre-texto h2 {
  font-size: 1.5rem;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.sobre-texto h2:first-child {
  margin-top: 0;
}

.sobre-texto p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  line-height: 1.8;
}

.valores-list {
  list-style: none;
  margin: var(--spacing-md) 0;
  padding-left: 0;
}

.valores-list li {
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  background: var(--color-bg-light);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--color-primary);
}

.diferenciais-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.diferencial {
  padding: var(--spacing-md);
  background: var(--color-bg-light);
  border-radius: var(--border-radius);
  text-align: center;
}

.diferencial h3 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.diferencial p {
  color: var(--color-text-light);
  margin: 0;
}

@media (min-width: 768px) {
  .diferenciais-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .diferenciais-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}