:root {
  /* Palette: #27AE60, #16A085, #ECF0F1, #2C3D4F */
  --primary-color: #27AE60;
  --secondary-color: #16A085;
  --accent-color: #2ECC71;
  --light-color: #ECF0F1;
  --dark-color: #2C3D4F;
  --gradient-primary: linear-gradient(135deg, #27AE60 0%, #16A085 100%);
  --hover-color: #1E8449;
  --background-color: #F9FBF9;
  --text-color: #34495D;
  --border-color: rgba(39, 174, 96, 0.2);
  --divider-color: rgba(22, 160, 133, 0.1);
  --shadow-color: rgba(39, 174, 96, 0.15);
  --highlight-color: #F1C40F; /* Компліментарний */
  
  --main-font: 'Open Sans', sans-serif;
  --heading-font: 'Oswald', sans-serif;
}

body {
  font-family: var(--main-font);
  color: var(--text-color);
  background-color: var(--background-color);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
}

/* Background Pattern */
.bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2327AE60' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

/* Utilities utilizing CSS vars */
.text-primary { color: var(--primary-color); }
.bg-primary { background-color: var(--primary-color); }
.bg-gradient { background: var(--gradient-primary); }
.border-primary { border-color: var(--primary-color); }
.hover-bg-dark:hover { background-color: var(--hover-color); }
.shadow-custom { box-shadow: 0 4px 6px -1px var(--shadow-color), 0 2px 4px -1px var(--shadow-color); }