/* ==============================================
   VOANDO NA LEITURA - DESIGN SYSTEM
   Design profissional com variáveis CSS
   ============================================== */

/* Importar fonte Roboto do Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&family=Poppins:wght@600;700&display=swap');

/* ==============================================
   VARIÁVEIS CSS (Design Tokens)
   ============================================== */

:root {
  /* Cores Primárias */
  --primary-color: #2e7d6e;
  --primary-dark: #246556;
  --primary-light: #3d9981;
  
  /* Cor de Destaque */
  --accent-color: #fdb813;
  --accent-dark: #e5a50f;
  
  /* Cores de Texto */
  --text-dark: #333333;
  --text-medium: #666666;
  --text-light: #f8f9fa;
  
  /* Cores de Fundo */
  --bg-light: #ffffff;
  --bg-grey: #f5f5f5;
  --bg-dark: #1a1a1a;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 12px 28px rgba(46, 125, 110, 0.15);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Espaçamentos */
  --spacing-xs: 0.5rem;   /* 8px */
  --spacing-sm: 0.75rem;  /* 12px */
  --spacing: 1rem;        /* 16px */
  --spacing-md: 1.5rem;   /* 24px */
  --spacing-lg: 2rem;     /* 32px */
  --spacing-xl: 3rem;     /* 48px */
  --spacing-2xl: 4rem;    /* 64px */
  
  /* Transições */
  --transition-fast: 0.15s ease;
  --transition: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1050;
  --z-tooltip: 1070;
}

/* ==============================================
   RESET E BASE
   ============================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-grey);
  background-image: 
    repeating-linear-gradient(45deg, transparent, transparent 35px, rgba(46,125,110,0.03) 35px, rgba(46,125,110,0.03) 70px),
    repeating-linear-gradient(-45deg, transparent, transparent 35px, rgba(253,184,19,0.02) 35px, rgba(253,184,19,0.02) 70px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==============================================
   TIPOGRAFIA
   ============================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

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);
}

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

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

/* ==============================================
   CONTAINER
   ============================================== */

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing);
  }
}

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

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

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

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

/* ==============================================
   ANIMAÇÕES
   ============================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* ==============================================
   RESPONSIVIDADE - BREAKPOINTS
   ============================================== */

/* Mobile: até 767px */
/* Tablet: 768px - 1023px */
/* Desktop: 1024px+ */

@media (max-width: 767px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }
}