/* Base Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: sans-serif;
  background: black;
  color: white;
  overflow-x: hidden;
}

/* HEADER SECTION */
.main-header {
  position: relative;
  width: 100%;
  height: 65vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  z-index: 1;
}

/* Dynamic radial gradient effect */
.gradient-layer {
  position: fixed;
  /* stays fixed on screen */
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, #4facfe, #107bab, #00354d);
  background-size: 150% 150%;
  filter: blur(60px);
  mix-blend-mode: screen;
  z-index: -1;
  /* pushes it behind all content */
  transition: background 0.2s ease-out;
}


/* Keep text above gradient */
.main-header>* {
  position: relative;
  z-index: 2;
}

/* CONTENT SECTIONS BELOW */
.content {
  display: flex;
  flex-direction: column;
  margin-top: -100px;
}