* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #0d0d1a;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 400px;
  background: #121233;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
  text-align: center;
}

h1 {
  margin-bottom: 20px;
  font-size: 24px;
  color: #00ffff;
  text-shadow: 0 0 10px #00ffff;
}

form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

input[type="number"] {
  padding: 12px;
  border-radius: 10px;
  border: none;
  font-size: 16px;
  background: #1c1c3c;
  color: #fff;
}

input::placeholder {
  color: #aaa;
}

button {
  padding: 12px;
  font-size: 16px;
  background: #00aaff;
  border: none;
  color: white;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 0 10px #00ffff;
  transition: 0.2s;
}

button:hover {
  background: #008ecc;
}

/* ... (semua styling yang sebelum ini masih sama) ... */

.popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.85);
  display: none;
  justify-content: center;
  align-items: center;
  padding: 20px;
  z-index: 99;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.popup.show {
  display: flex;
  opacity: 1;
}

.popup-box {
  background: #1a1a40;
  padding: 25px 30px;
  border-radius: 15px;
  box-shadow: 0 0 20px #00ffff;
  text-align: center;
  max-width: 90%;
  animation: fadeInPopup 0.4s ease;
}

@keyframes fadeInPopup {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.popup-box span {
  font-size: 18px;
  color: #fff;
  display: block;
}

.popup-buttons {
  margin-top: 20px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.popup-buttons button {
  padding: 10px 15px;
  font-size: 15px;
  border: none;
  border-radius: 10px;
  background: #00aaff;
  color: white;
  cursor: pointer;
  box-shadow: 0 0 10px #00ffff;
  transition: 0.2s;
}

.popup-buttons button:hover {
  background: #008ecc;
}

.sticky-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(30, 41, 59, 0.8);
  backdrop-filter: blur(10px);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

/* Garis bawah gradient */
.sticky-header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(to right, #38bdf8, #60a5fa);
  z-index: -1;
}


.logo img {
  width: 135px;
  height: 40px;
  border-radius: 8px;
}

/* Search bar */
.search-container {
  position: relative;
}

.search-container input {
  padding: 10px 35px 10px 14px;
  border-radius: 8px;
  border: 2px solid transparent;
  background-color: #334155;
  color: #f1f5f9;
  font-size: 14px;
  width: 180px;
  transition: all 0.3s ease;
  outline: none;
  box-shadow: 0 0 0px rgba(56, 189, 248, 0.5);
}

.search-container input:focus {
  border-color: #38bdf8;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.6);
}

.search-container input::placeholder {
  color: #cbd5e1;
  transition: all 0.3s ease;
}

/* Ikon search */
.search-container .search-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 16px;
  pointer-events: none;
}

/* Responsive masih kekal */