@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Montserrat:wght@400;500;600;700;800;900&display=swap');

:root {
  /* Brand Colors */
  --color-primary-dark: #086888; /* Azul petróleo escuro */
  --color-primary: #187898;      /* Azul principal */
  --color-accent: #3CA6BC;       /* Azul médio */
  --color-accent-light: #A4D0D9; /* Azul claro */
  
  /* Neutral Colors */
  --color-bg-main: #FFFFFF;
  --color-bg-alt: #F8FAFC; /* Very light slate */
  --color-text-main: #1A1A1A;
  --color-text-muted: #64748B;
  
  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing & Layout */
  --max-width: 1200px;
  --spacing-section: 6rem;
  
  /* Shadows */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  --shadow-glow: 0 0 20px rgba(21, 169, 207, 0.2);
  
  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-primary-dark);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
}

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

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

/* Utility Classes */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

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

.text-accent {
  color: var(--color-accent);
}

.section-subtitle {
  font-family: var(--font-heading);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 0.875rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  display: block;
}