:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --bg: #f3f4f6;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --danger: #dc2626;
  --success: #16a34a;
  --warn: #d97706;
  --sidebar-w: 230px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.app { display: flex; min-height: 100vh; }

/* ---- Sidebar / mobile topbar ---- */
.topbar {
  display: none; /* hanya muncul di layar kecil */
  align-items: center; justify-content: space-between;
  background: #111827; color: #fff; padding: 12px 16px;
  position: sticky; top: 0; z-index: 40;
}
.topbar .brand { padding: 0; border: none; margin: 0; font-size: 16px; }
.hamburger-btn {
  background: none; border: none; color: #fff; font-size: 22px; line-height: 1;
  cursor: pointer; padding: 6px 8px;
}
.sidebar-overlay { display: none; }

.sidebar {
  width: var(--sidebar-w);
  background: #111827;
  color: #e5e7eb;
  display: flex;
  flex-direction: column;
  padding: 20px 0;
  flex-shrink: 0;
}
.brand { font-weight: 700; font-size: 18px; padding: 0 20px 20px; border-bottom: 1px solid #1f2937; margin-bottom: 10px;}
.sidebar nav { display: flex; flex-direction: column; flex: 1; }
.sidebar nav a {
  color: #d1d5db;
  text-decoration: none;
  padding: 12px 20px;
  font-size: 14px;
}
.sidebar nav a:hover, .sidebar nav a.active { background: #1f2937; color: #fff; border-left: 3px solid var(--primary); }
.user-box { padding: 12px 20px; font-size: 12px; color: #9ca3af; border-top: 1px solid #1f2937; }
.user-box:hover { background: #1f2937; color: #fff; }
.content { flex: 1; padding: 28px; max-width: 1200px; min-width: 0; }

h1, h2, h3 { margin-top: 0; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 20px; }

.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-4, .grid-2 { grid-template-columns: 1fr 1fr; } }

.stat { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 18px; }
.stat .num { font-size: 26px; font-weight: 700; }
.stat .label { color: var(--muted); font-size: 13px; margin-top: 4px; }

/* ---- Tabel: bisa di-scroll horizontal di layar kecil, tidak merusak layout ---- */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 10px;
}
table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; white-space: nowrap; }
th { background: #f9fafb; font-weight: 600; color: var(--muted); }
tr:hover td { background: #f9fafb; }
/* Kolom yang isinya teks panjang (nama, alamat) tetap boleh membungkus baris */
td.wrap { white-space: normal; min-width: 140px; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-active { background: #dcfce7; color: var(--success); }
.badge-isolir { background: #fee2e2; color: var(--danger); }
.badge-nonaktif { background: #f3f4f6; color: var(--muted); }
.badge-gratis { background: #ede9fe; color: #7c3aed; }
.badge-unsold { background: #fef3c7; color: var(--warn); }
.badge-sold { background: #dbeafe; color: var(--primary-dark); }
.badge-used { background: #f3f4f6; color: var(--muted); }

.btn { display: inline-block; padding: 9px 16px; border-radius: 8px; border: none; cursor: pointer; font-size: 14px; text-decoration: none; font-weight: 600; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-secondary { background: #e5e7eb; color: var(--text); }
.btn-sm { padding: 5px 10px; font-size: 12px; }

form .field { margin-bottom: 14px; }
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: var(--muted); }
input, select, textarea {
  width: 100%; padding: 9px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 16px; font-family: inherit;
}
/* font-size 16px pada input mencegah Safari/Chrome di iOS otomatis zoom-in saat fokus ke field */
select { font-size: 14px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

/* ---- Show/hide password toggle ---- */
.password-wrap { position: relative; }
.password-wrap input { padding-right: 42px; }
.toggle-password {
  position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; font-size: 16px; padding: 6px 8px;
  line-height: 1; color: var(--muted);
}
.toggle-password:hover { color: var(--text); }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 14px; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 10px; flex-wrap: wrap; }
.toolbar .search { max-width: 260px; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg,#1e3a8a,#2563eb); padding: 20px; }
.login-box { background: #fff; padding: 36px; border-radius: 12px; width: 340px; max-width: 100%; box-shadow: 0 10px 40px rgba(0,0,0,.2); }
.login-box h1 { font-size: 20px; text-align: center; margin-bottom: 6px; }
.login-box p.sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 22px; }

/* ---- Device selector combo box ---- */
.device-selector { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.device-selector label { margin: 0; font-size: 13px; white-space: nowrap; color: var(--text); font-weight: 600; }
.device-selector select { width: auto; min-width: 220px; }

/* ---- Total nominal summary ---- */
.totals-summary {
  display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; padding: 14px 16px;
  background: #f9fafb; border: 1px solid var(--border); border-radius: 10px;
}
.totals-item { flex: 1; min-width: 140px; display: flex; flex-direction: column; gap: 2px; }
.totals-label { font-size: 12px; color: var(--muted); }
.totals-value { font-size: 16px; font-weight: 700; }

/* ---- Pagination ---- */
.pagination-bar {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: 12px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border);
}
.pagination-perpage { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.pagination-perpage select { width: auto; padding: 6px 8px; }
.pagination-info { font-size: 13px; color: var(--muted); }
.pagination-links { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---- Voucher print grid ---- */
.voucher-sheet { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.voucher-card {
  border: 1px dashed #999; border-radius: 8px; padding: 10px; text-align: center; font-family: monospace;
}
.voucher-card .vc-title { font-weight: 700; font-size: 12px; margin-bottom: 4px; }
.voucher-card .vc-code { font-size: 18px; font-weight: 700; letter-spacing: 2px; margin: 6px 0; }
.voucher-card .vc-info { font-size: 11px; color: #444; }

/* =========================================================
   RESPONSIF / MOBILE
   ========================================================= */
@media (max-width: 860px) {
  .app { flex-direction: column; }
  .topbar { display: flex; width: 100%; }

  .sidebar {
    position: fixed; top: 0; left: 0; height: 100vh; z-index: 50;
    transform: translateX(-100%);
    transition: transform .2s ease;
    box-shadow: 4px 0 20px rgba(0,0,0,.2);
  }
  .app.sidebar-open .sidebar { transform: translateX(0); }
  .app.sidebar-open .sidebar-overlay {
    display: block; position: fixed; inset: 0; top: 0;
    background: rgba(0,0,0,.4); z-index: 45;
  }

  .content { padding: 16px; max-width: 100%; }

  h1 { font-size: 22px; }
  h2 { font-size: 19px; }
  h3 { font-size: 16px; }

  .card { padding: 16px; }

  .grid-4, .grid-2 { grid-template-columns: 1fr; }

  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar .search { max-width: none; }
  .toolbar > div { flex-wrap: wrap; }

  .device-selector { display: flex; flex-wrap: wrap; }
  .device-selector select { width: 100%; min-width: 0; flex: 1; }

  th, td { padding: 8px 10px; font-size: 13px; }

  .totals-summary { flex-direction: column; }
  .totals-item { min-width: 0; }

  .pagination-bar { flex-direction: column; align-items: stretch; text-align: center; }
  .pagination-links { justify-content: center; }

  /* Jaring pengaman: baris flex apa pun (termasuk yang pakai inline style) ikut melipat
     ke bawah di layar kecil, supaya tombol/field tidak terpotong di luar layar. */
  [style*="display:flex"] { flex-wrap: wrap !important; }

  .voucher-sheet { grid-template-columns: repeat(2, 1fr); }

  /* Form dua kolom (mis. Host/Port) tetap ditumpuk di HP supaya label & input tidak terlalu sempit */
  form .grid-2 .field { margin-bottom: 14px; }
}

@media (max-width: 420px) {
  .voucher-sheet { grid-template-columns: 1fr; }
  .login-box { padding: 24px; }
}

@media print {
  .sidebar, .topbar, .sidebar-overlay, .no-print { display: none !important; }
  .content { padding: 0; max-width: none; }
  body { background: #fff; }
  .voucher-sheet { gap: 6px; }
  .table-responsive { overflow: visible; }
}