/* Theme variables and base styles */
:root {
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --bg: #f0f2f5;
  --surface: #ffffff;
  --text: #333333;
  --muted: #65676b;
  --border: #ddd;
  --border-soft: #e0e0e0;

  --primary: #004d40; /* verde corporativo */
  --primary-contrast: #ffffff;
  --primary-hover: #00382d;

  --accent: #007bff;
  --accent-hover: #0056b3;

  --success: #28a745;
  --success-hover: #218838;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  --shadow-md: 0 2px 10px rgba(0,0,0,0.1);
}

/* CSS Reset básico e tipografia */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: var(--font-family);
  background-color: var(--bg);
  color: var(--text);
  margin: 0;
}

/* Utilitários */
.container {
  max-width: 1200px;
  margin: 0 auto;
}

.btn,
button {
  font: inherit;
}

.btn-primary {
  background-color: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 15px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
}
.btn-primary:hover { background-color: var(--accent-hover); }

.btn-success {
  background-color: var(--success);
  color: #fff;
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
}
.btn-success:hover { background-color: var(--success-hover); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.header-primary {
  background-color: var(--primary);
  color: var(--primary-contrast);
}