/* =========================
   RESET
========================= */

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

html {
  scroll-behavior: smooth;
}

/* =========================
   BASE
========================= */

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.2px;
  background: #0E1113;
  color: #F2F4F5;
}

/* =========================
   VARIÁVEIS
========================= */

:root {
  --bg-dark: #0E1113;
  --bg-light: #F5F7F9;
  --bg-gray: #151A1D;

  --primary: #3A7C8F;
  --primary-hover: #2f6675;

  --text-primary: #F2F4F5;
  --text-dark: #0D0F10;
  --text-secondary: #A0B3C0;

  --container-width: 1200px;
}

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

h1, h2, h3 {
  letter-spacing: -0.5px;
}

h1 {
  font-size: 48px;
  line-height: 1.05;
}

h2 {
  font-size: 36px;
}

h3 {
  font-size: 18px;
}

p {
  line-height: 1.6;
}

/* =========================
   LINKS
========================= */

a {
  text-decoration: none;
}

/* =========================
   BOTÃO GLOBAL
========================= */

.btn-primary {
  background: linear-gradient(135deg, #3A7C8F, #2f6675);
  color: #fff;
  padding: 16px 28px;
  border-radius: 10px;
  font-weight: 600;
  display: inline-block;
  box-shadow: 0 10px 30px rgba(58,124,143,0.35);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(58,124,143,0.5);
}

/* EFEITO PREMIUM */
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: 0.6s;
}

.btn-primary:hover::after {
  left: 100%;
}