/* ===== Общий фон страницы ===== */
body {
  margin: 0;
  padding: 0;
  font-family: 'Arial', sans-serif;
  background: 
    linear-gradient(180deg, #f8fafc 0%, #e7f1fa 100%), /* мягкий градиент */
    repeating-linear-gradient(
      0deg,
      rgba(0,120,255,0.1),
      rgba(0,120,255,0.1) 2px,
      transparent 2px,
      transparent 30px
    ); /* горизонтальные линии как трассы, более заметные */
  background-size: cover;
  min-height: 100vh;
  position: relative;
}

/* ===== Диагональные линии ===== */
body::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    45deg,
    rgba(0,120,255,0.08),
    rgba(0,120,255,0.08) 2px,
    transparent 2px,
    transparent 40px
  );
  pointer-events: none;
  z-index: 0;
}

/* ===== Декоративные радиальные элементы ===== */
body::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 0; right: 0;
  background: 
    radial-gradient(circle at top left, rgba(0,120,255,0.08), transparent 150px),
    radial-gradient(circle at bottom right, rgba(0,120,255,0.08), transparent 150px);
  pointer-events: none;
  z-index: 0;
}

/* ===== Контент поверх узоров ===== */
.t-body, .t-container, .t-cover {
  position: relative;
  z-index: 1;
}