/*--------------------------------------------------------------
# Zax Telecom - Modern Clean Design System
# Versão: 2.0
# Cor Principal: #fe6601 (Laranja Zax)
--------------------------------------------------------------*/

/*--------------------------------------------------------------
# Design System - Variáveis CSS
--------------------------------------------------------------*/
:root {
  /* Cores Primárias */
  --zax-primary: #fe6601;
  --zax-primary-dark: #e55a00;
  --zax-primary-light: #ff7a1f;
  --zax-primary-lightest: #fff4ed;

  /* Cores Neutras */
  --zax-white: #ffffff;
  --zax-black: #000000;
  --zax-neutral-50: #fafafa;
  --zax-neutral-100: #f5f5f5;
  --zax-neutral-200: #e5e5e5;
  --zax-neutral-300: #d4d4d4;
  --zax-neutral-400: #a3a3a3;
  --zax-neutral-500: #737373;
  --zax-neutral-600: #525252;
  --zax-neutral-700: #404040;
  --zax-neutral-800: #262626;
  --zax-neutral-900: #171717;

  /* Cores de Status */
  --zax-success: #10b981;
  --zax-warning: #f59e0b;
  --zax-error: #ef4444;
  --zax-info: #3b82f6;

  /* Tipografia */
  --zax-font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --zax-font-heading: 'Outfit', 'Inter', sans-serif;

  /* Tamanhos de Fonte */
  --zax-text-xs: 0.75rem;    /* 12px */
  --zax-text-sm: 0.875rem;   /* 14px */
  --zax-text-base: 1rem;     /* 16px */
  --zax-text-lg: 1.125rem;   /* 18px */
  --zax-text-xl: 1.25rem;    /* 20px */
  --zax-text-2xl: 1.5rem;    /* 24px */
  --zax-text-3xl: 1.875rem;  /* 30px */
  --zax-text-4xl: 2.25rem;   /* 36px */
  --zax-text-5xl: 3rem;      /* 48px */

  /* Espaçamentos */
  --zax-space-1: 0.25rem;   /* 4px */
  --zax-space-2: 0.5rem;    /* 8px */
  --zax-space-3: 0.75rem;   /* 12px */
  --zax-space-4: 1rem;      /* 16px */
  --zax-space-5: 1.25rem;   /* 20px */
  --zax-space-6: 1.5rem;    /* 24px */
  --zax-space-8: 2rem;      /* 32px */
  --zax-space-10: 2.5rem;   /* 40px */
  --zax-space-12: 3rem;     /* 48px */
  --zax-space-16: 4rem;     /* 64px */
  --zax-space-20: 5rem;     /* 80px */

  /* Bordas */
  --zax-radius-sm: 0.375rem;   /* 6px */
  --zax-radius-md: 0.5rem;     /* 8px */
  --zax-radius-lg: 0.75rem;    /* 12px */
  --zax-radius-xl: 1rem;       /* 16px */
  --zax-radius-2xl: 1.5rem;    /* 24px */
  --zax-radius-full: 9999px;

  /* Sombras */
  --zax-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --zax-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --zax-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --zax-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  --zax-shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

  /* Transições */
  --zax-duration-fast: 150ms;
  --zax-duration-base: 300ms;
  --zax-duration-slow: 500ms;
  --zax-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--zax-font-primary);
  font-size: var(--zax-text-base);
  line-height: 1.6;
  color: var(--zax-neutral-700);
  background: var(--zax-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--zax-font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--zax-neutral-900);
}

h1 { font-size: var(--zax-text-5xl); }
h2 { font-size: var(--zax-text-4xl); }
h3 { font-size: var(--zax-text-3xl); }
h4 { font-size: var(--zax-text-2xl); }
h5 { font-size: var(--zax-text-xl); }
h6 { font-size: var(--zax-text-lg); }

a {
  color: var(--zax-primary);
  text-decoration: none;
  transition: color var(--zax-duration-fast) var(--zax-ease);
}

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

/*--------------------------------------------------------------
# Header - Clean & Modern
--------------------------------------------------------------*/
.header {
  background: linear-gradient(135deg, var(--zax-primary) 0%, var(--zax-primary-dark) 100%);
  box-shadow: var(--zax-shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--zax-duration-base) var(--zax-ease);
}

.header.stikcy-menu {
  background: linear-gradient(135deg, var(--zax-primary) 0%, var(--zax-primary-dark) 100%);
  box-shadow: var(--zax-shadow-lg);
}

.header .logo img {
  width: 120px;
  height: auto;
  transition: transform var(--zax-duration-fast) var(--zax-ease);
}

.header .logo img:hover {
  transform: scale(1.05);
}

/* Navigation - Desktop */
@media (min-width: 1280px) {
  .navbar a,
  .navbar a:focus {
    color: var(--zax-white);
    font-weight: 500;
    font-size: var(--zax-text-base);
    padding: var(--zax-space-2) var(--zax-space-4);
    border-radius: var(--zax-radius-md);
    transition: all var(--zax-duration-fast) var(--zax-ease);
  }

  .navbar a:hover,
  .navbar .active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--zax-white);
  }

  .navbar .dropdown ul {
    background: var(--zax-white);
    border-radius: var(--zax-radius-lg);
    box-shadow: var(--zax-shadow-xl);
    border: none;
  }

  .navbar .dropdown ul a {
    color: var(--zax-neutral-700);
  }

  .navbar .dropdown ul a:hover {
    background: var(--zax-primary-lightest);
    color: var(--zax-primary);
  }
}

/*--------------------------------------------------------------
# Buttons - Modern Design
--------------------------------------------------------------*/
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--zax-space-2);
  padding: var(--zax-space-3) var(--zax-space-6);
  background: var(--zax-primary);
  color: var(--zax-white);
  font-weight: 600;
  font-size: var(--zax-text-base);
  border-radius: var(--zax-radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--zax-duration-base) var(--zax-ease);
  box-shadow: 0 4px 14px 0 rgba(254, 102, 1, 0.3);
}

.btn-primary:hover {
  background: var(--zax-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(254, 102, 1, 0.4);
  color: var(--zax-white);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--zax-space-2);
  padding: var(--zax-space-3) var(--zax-space-6);
  background: transparent;
  color: var(--zax-primary);
  font-weight: 600;
  font-size: var(--zax-text-base);
  border-radius: var(--zax-radius-lg);
  border: 2px solid var(--zax-primary);
  cursor: pointer;
  transition: all var(--zax-duration-base) var(--zax-ease);
}

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

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: var(--zax-space-2);
  padding: var(--zax-space-3) var(--zax-space-6);
  background: #25d366;
  color: var(--zax-white);
  font-weight: 600;
  font-size: var(--zax-text-base);
  border-radius: var(--zax-radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--zax-duration-base) var(--zax-ease);
  box-shadow: 0 4px 14px 0 rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #1fbd5a;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(37, 211, 102, 0.4);
  color: var(--zax-white);
}

/*--------------------------------------------------------------
# Hero Section - Modern & Clean
--------------------------------------------------------------*/
.hero {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  padding: var(--zax-space-20) 0;
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(254, 102, 1, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  animation: fadeInUp 0.8s ease-out;
}

.hero h1 {
  font-size: var(--zax-text-5xl);
  font-weight: 800;
  color: var(--zax-white);
  margin-bottom: var(--zax-space-6);
  line-height: 1.1;
}

.hero h2 {
  font-size: var(--zax-text-xl);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--zax-space-8);
  line-height: 1.6;
}

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

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

/*--------------------------------------------------------------
# Section Header - Clean Typography
--------------------------------------------------------------*/
.section-header {
  text-align: center;
  margin-bottom: var(--zax-space-16);
}

.section-header h2 {
  font-size: var(--zax-text-4xl);
  font-weight: 800;
  color: var(--zax-neutral-900);
  margin-top: var(--zax-space-4);
  margin-bottom: var(--zax-space-4);
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--zax-primary) 0%, var(--zax-primary-light) 100%);
  border-radius: var(--zax-radius-full);
}

.section-header p {
  font-size: var(--zax-text-lg);
  color: var(--zax-neutral-600);
  max-width: 700px;
  margin: var(--zax-space-6) auto 0;
}

/*--------------------------------------------------------------
# Service Cards - Modern Grid
--------------------------------------------------------------*/
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--zax-space-8);
}

.service-card {
  background: var(--zax-white);
  padding: var(--zax-space-8);
  border-radius: var(--zax-radius-2xl);
  box-shadow: var(--zax-shadow-lg);
  transition: all var(--zax-duration-base) var(--zax-ease);
  border: 1px solid var(--zax-neutral-100);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--zax-shadow-2xl);
  border-color: var(--zax-primary-light);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--zax-primary-lightest) 0%, #ffe9d9 100%);
  border-radius: var(--zax-radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--zax-space-6);
  transition: all var(--zax-duration-base) var(--zax-ease);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--zax-primary) 0%, var(--zax-primary-dark) 100%);
  transform: scale(1.1) rotate(5deg);
}

.service-icon i {
  font-size: var(--zax-text-3xl);
  color: var(--zax-primary);
  transition: color var(--zax-duration-base) var(--zax-ease);
}

.service-card:hover .service-icon i {
  color: var(--zax-white);
}

/*--------------------------------------------------------------
# Cards - Modern Design
--------------------------------------------------------------*/
.card {
  background: var(--zax-white);
  border-radius: var(--zax-radius-xl);
  box-shadow: var(--zax-shadow-lg);
  border: 1px solid var(--zax-neutral-100);
  overflow: hidden;
  transition: all var(--zax-duration-base) var(--zax-ease);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--zax-shadow-2xl);
  border-color: var(--zax-primary-light);
}

/*--------------------------------------------------------------
# Footer - Clean & Professional
--------------------------------------------------------------*/
.footer-section {
  background: linear-gradient(135deg, var(--zax-neutral-900) 0%, var(--zax-neutral-800) 100%);
  padding: var(--zax-space-20) 0 var(--zax-space-8) 0;
  color: var(--zax-white);
  position: relative;
}

.footer-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--zax-primary) 0%, var(--zax-primary-light) 100%);
}

.footer-widget-heading h3 {
  color: var(--zax-white);
  font-size: var(--zax-text-xl);
  font-weight: 700;
  margin-bottom: var(--zax-space-6);
  position: relative;
  padding-bottom: var(--zax-space-3);
}

.footer-widget-heading h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--zax-primary);
  border-radius: var(--zax-radius-full);
}

.footer-widget ul li a {
  color: var(--zax-neutral-300);
  font-size: var(--zax-text-base);
  transition: all var(--zax-duration-fast) var(--zax-ease);
  display: inline-block;
}

.footer-widget ul li a:hover {
  color: var(--zax-primary-light);
  transform: translateX(4px);
}

.footer-social-icon a {
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--zax-white);
  border-radius: var(--zax-radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--zax-space-3);
  transition: all var(--zax-duration-base) var(--zax-ease);
}

.footer-social-icon a:hover {
  background: var(--zax-primary);
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(254, 102, 1, 0.4);
}

/*--------------------------------------------------------------
# Scroll to Top - Modern
--------------------------------------------------------------*/
.scroll-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 50px;
  height: 50px;
  background: var(--zax-primary);
  color: var(--zax-white);
  border-radius: var(--zax-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--zax-text-2xl);
  box-shadow: var(--zax-shadow-xl);
  transition: all var(--zax-duration-base) var(--zax-ease);
  z-index: 999;
}

.scroll-top:hover {
  background: var(--zax-primary-dark);
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(254, 102, 1, 0.5);
}

/*--------------------------------------------------------------
# Preloader - Modern
--------------------------------------------------------------*/
#preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--zax-white);
  display: flex;
  align-items: center;
  justify-content: center;
}

#preloader::before {
  content: '';
  width: 60px;
  height: 60px;
  border: 4px solid var(--zax-primary-lightest);
  border-top-color: var(--zax-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/*--------------------------------------------------------------
# Utilities
--------------------------------------------------------------*/
.text-primary { color: var(--zax-primary); }
.bg-primary { background-color: var(--zax-primary); }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/*--------------------------------------------------------------
# Responsive Design
--------------------------------------------------------------*/
@media (max-width: 991px) {
  .hero {
    min-height: auto;
    padding: var(--zax-space-20) 0;
  }

  .hero h1 {
    font-size: var(--zax-text-3xl);
  }

  .hero h2 {
    font-size: var(--zax-text-lg);
  }

  .section-header h2 {
    font-size: var(--zax-text-3xl);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .hero h1 {
    font-size: var(--zax-text-2xl);
  }

  .hero h2 {
    font-size: var(--zax-text-base);
  }

  .section-header h2 {
    font-size: var(--zax-text-2xl);
  }

  .btn-primary,
  .btn-secondary,
  .btn-whatsapp {
    width: 100%;
    justify-content: center;
  }
}