* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #f7f7f7;
  color: #111;
}

/* HEADER */
.header {
  background: #fff;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo {
  font-weight: bold;
  font-size: 20px;
}

.nav {
  display: flex;
  gap: 20px;
}

.nav a {
  text-decoration: none;
  color: #333;
}

/* MOBILE MENU BUTTON */
.menu-btn {
  display: none;
  font-size: 22px;
  cursor: pointer;
}

/* MOBILE MENU */
.mobile-menu {
  position: fixed;
  bottom: -100%;
  left: 0;
  width: 100%;
  background: #fff;
  padding: 20px;
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  transition: 0.3s;
  z-index: 2000;
}

.mobile-menu.active {
  bottom: 0;
}

.mobile-menu a {
  display: block;
  padding: 15px 0;
  text-decoration: none;
  color: #111;
  border-bottom: 1px solid #eee;
}

/* FOOTER */
.footer {
  background: #111;
  color: #fff;
  text-align: center;
  padding: 20px;
  margin-top: 50px;
}

/* MOBILE */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .menu-btn {
    display: block;
  }
}