/* ==========================================================================
   Bargin Engenharia — Design System (portado de Tailwind v4 / OKLCH tokens)
   ========================================================================== */

:root {
  --radius: 0.375rem;

  --background: oklch(0.985 0.003 60);
  --foreground: oklch(0.16 0.01 60);
  --card: oklch(1 0 0);

  --primary: oklch(0.18 0.015 60);
  --primary-foreground: oklch(0.985 0.003 60);

  --secondary: oklch(0.95 0.008 60);
  --secondary-foreground: oklch(0.18 0.015 60);

  --muted: oklch(0.95 0.008 60);
  --muted-foreground: oklch(0.5 0.015 60);

  --accent: oklch(0.68 0.16 55);
  --accent-foreground: oklch(0.16 0.01 60);

  --border: oklch(0.9 0.008 60);

  --gradient-hero: linear-gradient(180deg, oklch(0.16 0.01 60 / 0.2) 0%, oklch(0.12 0.01 60 / 0.85) 100%);
  --shadow-elegant: 0 20px 60px -20px oklch(0.16 0.01 60 / 0.25);
  --shadow-card: 0 2px 12px -4px oklch(0.16 0.01 60 / 0.08);
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset mínimo -------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background-color: var(--background);
  color: var(--foreground);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }

/* Layout ---------------------------------------------------------------- */
.container {
  max-width: 80rem; /* 7xl */
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.min-h-screen { min-height: 100vh; }

.section { padding-block: 6rem; }
.section-b-border { border-bottom: 1px solid var(--border); }
.bg-secondary { background-color: var(--secondary); }
.bg-secondary-soft { background-color: color-mix(in oklch, var(--secondary) 40%, transparent); }

/* Tipografia --------------------------------------------------------- */
.eyebrow {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.text-muted { color: var(--muted-foreground); }
.lead { font-size: 1.125rem; line-height: 1.7; }

h1, h2, h3 { font-weight: 700; letter-spacing: -0.02em; }

/* Botões --------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: var(--primary-foreground); }
.btn-primary:hover { background: color-mix(in oklch, var(--primary) 90%, transparent); }
.btn-accent { background: var(--accent); color: var(--accent-foreground); }
.btn-accent:hover { opacity: 0.9; }
.btn-outline-light { border-color: rgb(255 255 255 / 0.4); color: #fff; }
.btn-outline-light:hover { background: rgb(255 255 255 / 0.1); }

/* Grid helpers --------------------------------------------------------- */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
.grid-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px) {
  .md\:grid-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Cards ------------------------------------------------------------------ */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

/* Utilitários pontuais usados nas páginas -------------------------------- */
.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }