:root {
  /* Palette: #2980B9, #34495D, #E67E22, #ECF0F1 */
  --primary-color: #2980B9;
  --secondary-color: #34495D;
  --accent-color: #3498DB;
  --light-color: #FFFFFF;
  --dark-color: #2C3D4F;
  --gradient-primary: linear-gradient(180deg, #2980B9 0%, #21618C 100%);
  --hover-color: #1A5276;
  --background-color: #F2F2F2;
  --text-color: #4B5563;
  --border-color: #BDC3C7;
  --divider-color: #E5E7EB;
  --shadow-color: rgba(41, 128, 185, 0.2);
  --highlight-color: #E67E22; /* Компліментарний */
  
  --main-font: 'Lato', sans-serif;
  --heading-font: 'Montserrat', 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);
}

.bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 20.5V18h2v2.5h-2zM20 22v-2.5h2V22h-2zm-2-1.5h-2.5v2H18v-2zm-2.5 0h2.5v-2h-2.5v2zM20 20.5h2.5v2H20v-2zm2.5 0h-2.5v-2h2.5v2zM20 18h-2v2.5h2V18zm-2 0h2v-2.5h-2V18z' fill='%232980B9' fill-opacity='1' fill-rule='evenodd'/%3E%3C/svg%3E");
  pointer-events: none;
}

.card-shadow { box-shadow: 0 10px 15px -3px var(--shadow-color); }
.btn-primary { background: var(--gradient-primary); color: white; }
.btn-primary:hover { background: var(--hover-color); }