:root{
  --bg: #eef4fb; --panel: #ffffff; --panel-alt: #f3f8fd;
  --border: #2f7fc4; --border-soft: #c3dcf1;
  --navy: #0f3f6e; --navy-bright: #1c6fb0;
  --green: #1f9d5c; --green-bg: #e5f7ec;
  --red: #d1483b; --red-bg: #fbe9e7;
  --amber: #b5761f; --amber-bg: #fff3e0;
  --text: #16283a; --text-muted: #5b7994;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}
*{ box-sizing:border-box; }
body{ margin:0; background: var(--bg); color: var(--text); font-family: var(--font-body); -webkit-font-smoothing:antialiased; }
a{ color: var(--navy-bright); }

.app{ display:flex; min-height:100vh; }

.sidebar{ width: 220px; background: var(--navy); color:#fff; flex-shrink:0; display:flex; flex-direction:column; padding: 20px 0; }
.sidebar .brand{ padding: 0 20px 20px; border-bottom: 1px solid rgba(255,255,255,0.15); margin-bottom: 12px; }
.sidebar .brand h1{ font-family: var(--font-display); font-size: 17px; margin:0; font-weight:700; }
.sidebar .brand p{ font-size: 11px; color: rgba(255,255,255,0.6); margin: 4px 0 0; font-family: var(--font-mono); }
.nav-item{ display:flex; align-items:center; gap:10px; padding: 12px 20px; cursor:pointer; font-size:14px; font-weight:600; color: rgba(255,255,255,0.75); border-left: 3px solid transparent; transition: all .15s ease; text-decoration:none; }
.nav-item:hover{ background: rgba(255,255,255,0.06); color:#fff; }
.nav-item.active{ background: rgba(255,255,255,0.1); color:#fff; border-left-color: #5cc6f2; }
.sidebar .logout{ margin-top:auto; padding: 12px 20px; }

.main{ flex:1; padding: 26px 30px; max-width: 1200px; }

.page-header{ display:flex; justify-content:space-between; align-items:flex-end; margin-bottom: 20px; flex-wrap:wrap; gap:10px; }
.page-header h2{ font-family: var(--font-display); font-size: 22px; margin:0; color: var(--navy); }
.page-header p{ font-size:12.5px; color: var(--text-muted); margin: 4px 0 0; }

.btn{ font-family: var(--font-body); font-weight:600; font-size:13px; padding: 9px 16px; border-radius: 8px; border: 2px solid var(--border-soft); background: var(--panel); color: var(--navy); cursor:pointer; transition: all .15s ease; text-decoration:none; display:inline-block; }
.btn:hover{ border-color: var(--navy-bright); }
.btn.primary{ background: var(--navy-bright); border-color: var(--navy-bright); color:#fff; }
.btn.primary:hover{ background: var(--navy); }
.btn.danger{ color: var(--red); border-color: #f0c4bf; }
.btn.danger:hover{ border-color: var(--red); background: var(--red-bg); }
.btn.small{ padding: 6px 10px; font-size:11.5px; }

.cards{ display:grid; grid-template-columns: repeat(auto-fit, minmax(190px,1fr)); gap: 14px; margin-bottom: 24px; }
.card{ background: var(--panel); border: 2px solid var(--border-soft); border-radius: 12px; padding: 18px; box-shadow: 3px 3px 0 rgba(47,127,196,0.06); }
.card .k{ font-size: 11.5px; color: var(--text-muted); font-weight:600; text-transform:uppercase; letter-spacing:0.03em; margin-bottom:8px; }
.card .v{ font-family: var(--font-mono); font-size: 26px; font-weight:700; color: var(--navy); }
.card.green .v{ color: var(--green); }
.card.red .v{ color: var(--red); }
.card.amber .v{ color: var(--amber); }

.panel-box{ background: var(--panel); border: 2px solid var(--border-soft); border-radius: 12px; padding: 20px; margin-bottom:20px; }
.panel-box h3{ font-family: var(--font-display); font-size:15px; margin: 0 0 14px; color: var(--navy); }

table{ width:100%; border-collapse: collapse; font-size: 13px; }
th, td{ text-align:left; padding: 10px 8px; border-bottom: 1px solid var(--border-soft); }
th{ font-size:11px; text-transform:uppercase; letter-spacing:0.03em; color: var(--text-muted); font-weight:600; background: var(--panel-alt); }
tr:hover td{ background: var(--panel-alt); }
td.num{ font-family: var(--font-mono); }

.badge{ display:inline-block; padding: 3px 10px; border-radius: 20px; font-size:11px; font-weight:700; }
.badge.aktif, .badge.lunas{ background: var(--green-bg); color: var(--green); }
.badge.nonaktif, .badge.belum{ background: var(--red-bg); color: var(--red); }

.empty-state{ text-align:center; padding: 40px 20px; color: var(--text-muted); font-size:13px; }

.field{ margin-bottom: 13px; }
.field label{ display:block; font-size:12px; font-weight:600; color: var(--text); margin-bottom:5px; }
.field input, .field select, .field textarea{ width:100%; padding: 9px 11px; border-radius: 8px; border: 2px solid var(--border-soft); font-size:13.5px; font-family: var(--font-body); background: var(--panel-alt); outline:none; color:var(--text); }
.field input:focus, .field select:focus, .field textarea:focus{ border-color: var(--navy-bright); }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:10px; }

.toolbar{ display:flex; gap:10px; margin-bottom:16px; flex-wrap:wrap; align-items:center; }
.search-input{ flex:1; min-width:180px; padding: 9px 12px; border-radius:8px; border:2px solid var(--border-soft); font-size:13px; outline:none; }
.search-input:focus{ border-color: var(--navy-bright); }

.alert{ padding: 12px 16px; border-radius: 10px; font-size:13px; margin-bottom:16px; border: 2px solid; }
.alert.success{ background: var(--green-bg); color: var(--green); border-color: #b7e6c8; }
.alert.error{ background: var(--red-bg); color: var(--red); border-color: #f0c4bf; }

.login-wrap{ min-height:100vh; display:flex; align-items:center; justify-content:center; }
.login-box{ background: var(--panel); border: 2.5px solid var(--border); border-radius: 16px; padding: 32px; width:100%; max-width:360px; box-shadow: 5px 5px 0 rgba(47,127,196,0.15); }
.login-box h1{ font-family: var(--font-display); color: var(--navy); font-size:22px; text-align:center; margin: 0 0 6px; }
.login-box p.sub{ text-align:center; color:var(--text-muted); font-size:12.5px; margin: 0 0 24px; }

.footer-note{ font-family: var(--font-mono); font-size:11px; color: var(--text-muted); margin-top: 20px; text-align:center; }

@media (max-width: 760px){
  .app{ flex-direction:column; }
  .sidebar{ width:100%; flex-direction:row; overflow-x:auto; padding: 10px; align-items:center; }
  .sidebar .brand, .sidebar .logout{ display:none; }
  .nav-item{ padding: 8px 14px; border-left:none; border-bottom:3px solid transparent; white-space:nowrap; }
  .nav-item.active{ border-bottom-color:#5cc6f2; border-left-color:transparent; }
  .main{ padding: 18px; }
  .field-row{ grid-template-columns:1fr; }
}