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

body {
  background: #f0f4f8;
  color: #0f172a;
  font-size: 17px;
  padding-bottom: 95px;
  line-height: 1.7;
}

.container {
  max-width: 540px;
  margin: 0 auto;
  padding: 20px;
}

h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 24px 0;
  color: #0f172a;
  text-align: center;
}

h3 {
  font-size: 22px;
  font-weight: 600;
  margin: 20px 0 14px;
  color: #1e293b;
}

h4 {
  font-size: 19px;
  font-weight: 600;
  margin: 14px 0;
  color: #0f172a;
}

/* Kartu Lebih Mewah */
.card {
  background: #ffffff;
  border-radius: 18px;
  padding: 26px;
  margin-bottom: 24px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.08);
  border: 1px solid #e2e8f0;
}

/* Input Lebih Besar & Jelas */
input, select, textarea {
  width: 100%;
  padding: 18px 20px;
  margin: 14px 0 20px;
  border: 2px solid #cbd5e1;
  border-radius: 14px;
  font-size: 19px;
  background: #ffffff;
  transition: all 0.2s;
}

input:focus, select:focus, textarea:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  outline: none;
}

/* Nomor E-Wallet Sangat Besar */
input.large {
  font-size: 26px;
  font-weight: bold;
  text-align: center;
  letter-spacing: 2px;
  color: #1e40af;
  background: #eff6ff;
  border: 2px solid #3b82f6;
}

/* Tombol Besar & Menarik */
.btn {
  width: 100%;
  padding: 18px;
  border: none;
  border-radius: 14px;
  font-size: 19px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 3px 8px rgba(0,0,0,0.12);
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
}
.btn-primary:active {
  background: #1e40af;
  transform: scale(0.98);
}

.btn-success {
  background: linear-gradient(135deg, #16a34a, #15803d);
  color: #ffffff;
}
.btn-danger {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #ffffff;
}
.btn-warning {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #000000;
}

/* Menu Bawah Lebih Besar */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #0f172a;
  display: flex;
  justify-content: space-around;
  padding: 14px 0;
  box-shadow: 0 -3px 12px rgba(0,0,0,0.15);
  z-index: 999;
}

.bottom-nav a {
  color: #cbd5e1;
  text-align: center;
  font-size: 14px;
  text-decoration: none;
  padding: 10px 8px;
  border-radius: 10px;
  min-width: 75px;
  font-weight: 500;
}

.bottom-nav a.active {
  background: #2563eb;
  color: white;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.content-section {
  display: none;
}
.content-section.active {
  display: block;
}

/* Pesan Notifikasi */
.msg {
  padding: 16px;
  border-radius: 12px;
  margin: 14px 0;
  text-align: center;
  font-weight: 500;
  font-size: 17px;
}
.success { background: #dcfce7; color: #15803d; border: 1px solid #bbf7d0; }
.error { background: #fee2e2; color: #b91c1c; border: 1px solid #fecaca; }
.info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* Tabel */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
  margin-top: 12px;
}
table th, table td {
  padding: 14px 10px;
  border-bottom: 1px solid #e2e8f0;
  text-align: left;
}
table th {
  background: #f1f5f9;
  font-weight: 600;
}

/* Popup Detail Akun */
.popup {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 20px;
}
.popup-content {
  background: white;
  padding: 30px;
  border-radius: 18px;
  width: 100%;
  max-width: 450px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}
.popup-content h3 {
  text-align: center;
  color: #166534;
  font-size: 24px;
}