.header {
  width: 100%;
  padding: 15px 40px;
  background: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.menu {
  display: flex;
  gap: 25px;
}

.menu a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: 0.3s;
}

.menu a:hover {
  color: #2196f3;
}

/* ===================== */
/* MOBILE BOTTOM NAV */
/* ===================== */

.navigation {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 70px;
  background: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 -5px 15px rgba(0,0,0,0.08);
  z-index: 999;
}

.navigation ul {
  display: flex;
  width: 100%;
  max-width: 500px;
  padding: 0;
  margin: 0;
  justify-content: space-around;
}

.navigation ul li {
  list-style: none;
  flex: 1;
  text-align: center;
}

.navigation ul li a {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: #777;
  transition: 0.3s;
}

.icon {
  font-size: 22px;
}

.text {
  font-size: 12px;
  opacity: 0;
  transform: translateY(5px);
  transition: 0.3s;
}

/* ACTIVE */
.navigation ul li.active a {
  color: #2196f3;
}

.navigation ul li.active .icon {
  transform: translateY(-5px);
}

.navigation ul li.active .text {
  opacity: 1;
  transform: translateY(0);
}

/* ===================== */
/* RESPONSIVE */
/* ===================== */

/* Desktop → alt menü gizle */
@media (min-width: 768px) {
  .navigation {
    display: none;
  }
}

/* Mobil → header gizle */
@media (max-width: 767px) {
  .header {
    display: none;
  }
}