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

body {
  background-color: #000;
  background: linear-gradient(to bottom, #000000 0%, #1a1a1a 100%);
  background-attachment: fixed;
  color: #eee;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

/* --- HEADER --- */
.custom-header {
  width: 100%;
  background: linear-gradient(to bottom, #76b5c5, #ffffff);
  padding: 30px 0;
  text-align: center;
  position: relative;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.main-logo { max-width: 250px; margin-bottom: 20px; }
.cat-nav { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; }
.cat-nav img { height: 90px; transition: transform 0.3s; }
.cat-nav img:hover { transform: scale(1.1); }

/* --- FOOTER --- */
footer { width: 100%; padding: 60px 20px; text-align: center; background: #050505; }