/* Digital Vox Telecom - CSS Principal */
/* Baseado na análise do site atual e otimizações do PDF */

/* ===== RESET E BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

/* ===== VARIÁVEIS CSS ===== */
:root {
  /* Cores baseadas no site atual */
  --primary-orange: #FF6B35;
  --primary-blue: #1E3A8A;
  --primary-green: #4CAF50;
  --dark-bg: #1a1a1a;
  --light-gray: #f8f9fa;
  --text-dark: #333;
  --text-light: #666;
  --white: #ffffff;
  --border-light: #e9ecef;
  
  /* Espaçamentos */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Bordas */
  --border-radius: 8px;
  --border-radius-lg: 12px;
  
  /* Sombras */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  
  /* Transições */
  --transition: all 0.3s ease;
}

/* ===== HEADER (otimizado para ser mais fino) ===== */
.header {
  background-color: var(--white);
  padding: 0.5rem 0;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  border-bottom: 1px solid #e5e7eb;
}

.header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
}

.logo {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  position: relative;
}

.nav-menu a {
  color: var(--text-dark);
  text-decoration: none;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  font-weight: 500;
  display: block;
  font-size: 0.95rem;
}

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

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  min-width: 220px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
  border-radius: 8px;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1001;
  border: 1px solid #e5e7eb;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  padding: 0.75rem 1.5rem;
  color: var(--text-dark);
  font-weight: 400;
  border-radius: 0;
  transition: all 0.2s ease;
  border-bottom: 1px solid #f3f4f6;
}

.dropdown-menu a:last-child {
  border-bottom: none;
}

.dropdown-menu a:hover {
  background-color: #f8fafc;
  color: var(--primary-orange);
  padding-left: 2rem;
}

.cta-button {
  background-color: var(--primary-green);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.cta-button:hover {
  background-color: #45a049;
  transform: translateY(-2px);
}

/* ===== LAYOUT PRINCIPAL ===== */
.main-content {
  margin-top: 70px; /* Compensar header fixo mais fino */
}

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

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

.section-alt {
  background-color: var(--light-gray);
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  background: url('../assets/banner_hero_digitalvox.png') center/cover no-repeat;
  color: var(--white);
  text-align: center;
  padding: var(--spacing-xxl) 0;
  min-height: 500px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg, 
    rgba(255, 107, 53, 0.8) 0%, 
    rgba(30, 58, 138, 0.7) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
  font-size: clamp(1.1rem, 2.5vw, 1.3rem);
  margin-bottom: var(--spacing-xl);
  text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
  opacity: 0.95;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== HERO INTERNO (PÁGINAS INTERNAS) ===== */
.hero-internal {
  position: relative;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  color: var(--text-dark);
  text-align: center;
  padding: var(--spacing-xxl) 0;
  min-height: 400px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-internal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg, 
    rgba(255, 107, 53, 0.1) 0%, 
    rgba(30, 58, 138, 0.1) 100%
  );
  z-index: 1;
}

.hero-internal .hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.hero-internal .hero-content h1 {
  color: var(--text-dark);
  text-shadow: none;
}

.hero-internal .hero-content p {
  color: var(--text-light);
  text-shadow: none;
  opacity: 1;
}

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

.hero-internal .btn-primary:hover {
  background: #e55a2b;
}

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

.hero-internal .btn-secondary:hover {
  background: var(--primary-blue);
  color: var(--white);
}

/* ===== TÍTULOS ===== */
.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
  font-weight: bold;
}

.section-title .subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== CARDS DE SERVIÇOS ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.service-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-orange), #ff8c42);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 2rem;
  color: var(--white);
}

.service-card h3 {
  font-size: 1.5rem;
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.service-card p {
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.service-features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--spacing-md);
}

.service-features li {
  padding: var(--spacing-xs) 0;
  color: var(--text-light);
  position: relative;
  padding-left: 1.5rem;
}

.service-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary-green);
  font-weight: bold;
}

.price {
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--primary-orange);
  margin-bottom: var(--spacing-sm);
}

/* ===== PLANOS ===== */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.plan-card {
  background: var(--white);
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.plan-card.featured {
  border-color: var(--primary-orange);
  transform: scale(1.05);
}

.plan-card.featured::before {
  content: "MAIS POPULAR";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-orange);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: bold;
}

.plan-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.plan-card.featured:hover {
  transform: scale(1.05) translateY(-5px);
}

.plan-name {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
}

.plan-price {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--primary-orange);
  margin-bottom: var(--spacing-xs);
}

.plan-price-old {
  font-size: 1rem;
  color: var(--text-light);
  text-decoration: line-through;
  margin-bottom: var(--spacing-md);
}

.plan-features {
  list-style: none;
  text-align: left;
  margin: var(--spacing-lg) 0;
}

.plan-features li {
  padding: var(--spacing-xs) 0;
  color: var(--text-light);
  position: relative;
  padding-left: 1.5rem;
}

.plan-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary-green);
  font-weight: bold;
}

/* ===== BOTÕES ===== */
.btn {
  display: inline-block;
  padding: 15px 30px;
  border: none;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.1rem;
  line-height: 1.5;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: var(--white);
  color: var(--primary-orange);
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.3);
  background: #f8f9fa;
}

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

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

.btn-primary:hover {
  background: #e55a2b;
  border-color: #e55a2b;
  transform: translateY(-2px);
}

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

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

.btn-whatsapp {
  background: #25D366;
  color: var(--white);
  border-color: #25D366;
}

.btn-whatsapp:hover {
  background: #128C7E;
  border-color: #128C7E;
}

/* ===== DEPOIMENTOS ===== */
.testimonials {
  background: var(--light-gray);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

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

.testimonial-text {
  font-style: italic;
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
  line-height: 1.6;
}

.testimonial-author {
  font-weight: bold;
  color: var(--text-dark);
}

/* ===== CONTATO ===== */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.contact-item {
  text-align: center;
  padding: var(--spacing-lg);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 1.5rem;
  color: var(--white);
}

.contact-item h3 {
  color: var(--text-dark);
  margin-bottom: var(--spacing-xs);
}

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

.contact-item a {
  color: var(--primary-orange);
  text-decoration: none;
  font-weight: 600;
}

.contact-item a:hover {
  text-decoration: underline;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark-bg);
  color: var(--white);
  text-align: center;
  padding: var(--spacing-xl) 0;
}

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

.footer a {
  color: var(--primary-orange);
  text-decoration: none;
}

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

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
  .header .container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  
  .nav-menu {
    display: none;
  }
  
  .main-content {
    margin-top: 70px;
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
    min-height: 60vh;
  }
  
  .services-grid,
  .plans-grid {
    grid-template-columns: 1fr;
  }
  
  .plan-card.featured {
    transform: none;
  }
  
  .plan-card.featured:hover {
    transform: translateY(-5px);
  }
  
  .section {
    padding: var(--spacing-xl) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-xs);
  }
  
  .service-card,
  .plan-card {
    padding: var(--spacing-md);
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
}

/* ===== ANIMAÇÕES ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* ===== UTILITÁRIOS ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* ===== WHATSAPP FLUTUANTE ===== */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: #25D366;
  color: var(--white);
  border-radius: 50%;
  text-align: center;
  font-size: 30px;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: var(--transition);
}

.whatsapp-float:hover {
  background-color: #128C7E;
  transform: scale(1.1);
}

@media (max-width: 768px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    font-size: 24px;
    bottom: 20px;
    right: 20px;
  }
}


/* ===== MENU MOBILE AVANÇADO ===== */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-dark);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.mobile-menu-toggle:hover {
  background-color: #f3f4f6;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--white);
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  z-index: 999;
  max-height: calc(100vh - 70px);
  overflow-y: auto;
  transform: translateY(-10px);
  opacity: 0;
  transition: all 0.3s ease;
}

.mobile-menu.active {
  display: block;
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav-menu {
  list-style: none;
  padding: 1rem 0;
  margin: 0;
}

.mobile-nav-menu li {
  border-bottom: 1px solid #f3f4f6;
}

.mobile-nav-menu a {
  display: block;
  padding: 1rem 1.5rem;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.mobile-nav-menu a:hover,
.mobile-nav-menu a:focus {
  background-color: #f8fafc;
  color: var(--primary-orange);
  padding-left: 2rem;
}

.mobile-dropdown-menu {
  background-color: #f8fafc;
  padding-left: 1rem;
}

.mobile-dropdown-menu a {
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
  min-height: 40px;
}

/* ===== OTIMIZAÇÕES MOBILE ESPECÍFICAS ===== */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  /* Hero responsivo */
  .hero,
  .hero-internal {
    min-height: 350px;
    padding: var(--spacing-lg) 0;
  }
  
  .hero-content h1,
  .hero-internal .hero-content h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
  }
  
  .hero-content p,
  .hero-internal .hero-content p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .hero-cta .btn {
    width: 100%;
    max-width: 280px;
  }
  
  /* Touch-friendly buttons */
  .btn {
    min-height: 44px;
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }
  
  /* Melhor espaçamento para touch */
  .service-card {
    margin-bottom: 1rem;
  }
  
  /* Cards mais legíveis em mobile */
  .service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
  }
  
  .service-card p {
    font-size: 0.95rem;
    line-height: 1.5;
  }
  
  /* Formulários mobile-friendly */
  input[type="text"],
  input[type="email"],
  input[type="tel"],
  textarea {
    font-size: 16px; /* Previne zoom no iOS */
    padding: 1rem;
    border-radius: 8px;
    border: 2px solid #e5e7eb;
    width: 100%;
    box-sizing: border-box;
  }
  
  /* WhatsApp float otimizado */
  .whatsapp-float {
    width: 56px;
    height: 56px;
    font-size: 24px;
    bottom: 20px;
    right: 20px;
  }
}

/* ===== PERFORMANCE E LOADING ===== */
/* Lazy loading para imagens */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
  opacity: 1;
}

/* Preload crítico */
.hero {
  contain: layout style paint;
}

/* Otimização de scroll */
.section {
  contain: layout style;
}

/* ===== ACESSIBILIDADE ===== */
/* Focus visível */
*:focus {
  outline: 2px solid var(--primary-orange);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-orange);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 1001;
}

.skip-link:focus {
  top: 6px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .btn {
    border: 2px solid currentColor;
  }
  
  .service-card {
    border: 2px solid var(--text-dark);
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .header,
  .whatsapp-float,
  .mobile-menu-toggle,
  .mobile-menu {
    display: none !important;
  }
  
  .main-content {
    margin-top: 0;
  }
  
  .section {
    page-break-inside: avoid;
  }
}