:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --bg: #f4f6f9;
  --sidebar-bg: #ffffff;
  --sidebar-bg-hover: #f1f5f9;
  --sidebar-bg-active: #eff6ff;
  --sidebar-text: #334155;
  --sidebar-text-muted: #64748b;
  --sidebar-text-active: #1d4ed8;
  --sidebar-border: #e2e8f0;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
h1, h2, h3 { margin: 0; }

/* ---------- LOGIN ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #0f172a 0%, #1e3a8a 55%, #2563eb 100%);
  padding: 20px;
}
.login-box {
  background: #fff;
  padding: 36px 32px;
  border-radius: 16px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.login-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #1e40af);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-md);
}
.login-logo-img {
  width: 96px;
  height: 96px;
  object-fit: contain;
  margin-bottom: 12px;
  display: block;
}
.login-box h1 { font-size: 21px; font-weight: 700; margin-bottom: 4px; color: var(--text); }
.login-box p.sub { color: var(--text-muted); margin-bottom: 26px; font-size: 14px; }
.login-footer-note { text-align: center; margin-top: 20px; font-size: 12px; color: #94a3b8; }

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

.sidebar {
  width: 240px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 0 0 20px;
  flex-shrink: 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  z-index: 40;
  transition: transform 0.25s ease;
  border-right: 1px solid var(--sidebar-border);
}
.sidebar .brand {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  padding: 18px 20px;
  border-bottom: 1px solid var(--sidebar-border);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  position: sticky;
  top: 0;
  background: var(--sidebar-bg);
}
.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  font-size: 14.5px;
  font-weight: 500;
  border-left: 3px solid transparent;
  color: var(--sidebar-text);
  transition: background 0.15s, color 0.15s;
}
.sidebar nav a:hover { background: var(--sidebar-bg-hover); color: var(--sidebar-text); }
.sidebar nav a .nav-badge {
  margin-left: auto;
  background: #ef4444;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  line-height: 1.5;
  white-space: nowrap;
}
.sidebar nav a.active {
  background: var(--sidebar-bg-active);
  color: var(--sidebar-text-active);
  border-left-color: var(--primary);
  font-weight: 600;
}
.sidebar .group-title {
  padding: 16px 20px 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sidebar-text-muted);
  letter-spacing: .06em;
}

/* ---------- SIDEBAR: GRUP BISA DILIPAT (native <details>, tanpa JS) ---------- */
.sidebar details.nav-group { border-top: 1px solid var(--sidebar-border); }
.sidebar details.nav-group:first-of-type { border-top: none; }
.sidebar details.nav-group summary.group-title {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
  padding-right: 16px;
}
.sidebar details.nav-group summary.group-title:hover { color: var(--sidebar-text); background: var(--sidebar-bg-hover); }
.sidebar summary::-webkit-details-marker { display: none; }
.sidebar summary::marker { content: ''; }
.sidebar .chevron {
  font-size: 11px;
  transition: transform 0.18s ease;
  color: var(--sidebar-text-muted);
  flex-shrink: 0;
}
.sidebar details[open] > summary.group-title .chevron { transform: rotate(90deg); }

.sidebar details.nav-subgroup {
  margin: 2px 0 4px;
}
.sidebar summary.subgroup-title {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  user-select: none;
  padding: 9px 20px 9px 20px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--sidebar-text);
}
.sidebar summary.subgroup-title:hover { background: var(--sidebar-bg-hover); color: var(--sidebar-text); }
.sidebar details[open] > summary.subgroup-title .chevron { transform: rotate(90deg); }
.sidebar details.nav-subgroup nav a,
.sidebar details.nav-subgroup a { padding-left: 34px; font-size: 13.5px; }

.main {
  flex: 1;
  min-width: 0;
  margin-left: 240px;
  transition: margin-left 0.25s ease;
}

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar .page-title { font-weight: 700; font-size: 16px; }
.topbar .user-info { font-size: 13px; color: var(--text-muted); text-align: right; white-space: nowrap; }
.topbar .user-info strong { color: var(--text); }
.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--text);
  padding: 4px 8px;
}
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 30;
}

.content { padding: 20px 24px 40px; max-width: 1200px; }

/* ---------- COMPONENTS ---------- */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}
.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-sm);
}
.stat-card .num { font-size: 28px; font-weight: 800; color: var(--text); }
.stat-card .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { background: #f8fafc; font-weight: 600; color: #475569; font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: #f8fafc; }
td { white-space: normal; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.15s, transform 0.05s;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: #fef2f2; color: var(--danger); }
.btn-danger:hover { background: #fee2e2; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; }
.btn-secondary { background: #f1f5f9; color: #334155; }
.btn-secondary:hover { background: #e2e8f0; }
.btn-sm { padding: 6px 12px; font-size: 12.5px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13.5px; font-weight: 600; color: #334155; }
.form-control {
  width: 100%;
  padding: 10px 13px;
  border: 1.5px solid #e2e8f0;
  border-radius: 8px;
  font-size: 14.5px;
  font-family: inherit;
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.alert { padding: 13px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 14px; font-weight: 500; }
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.alert-danger { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }

.badge { padding: 4px 11px; border-radius: 999px; font-size: 12px; font-weight: 700; text-transform: capitalize; }
.badge-success { background: #dcfce7; color: #166534; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-gray { background: #f1f5f9; color: #475569; }

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 10px;
}
.page-header h2 { font-size: 19px; font-weight: 700; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); font-size: 14px; }

/* ---------- MOBILE RESPONSIVE ---------- */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 4px 0 20px rgba(0,0,0,0.3); }
  .main { margin-left: 0; }
  .hamburger { display: inline-block; }
  .sidebar-overlay.show { display: block; }
  .content { padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .topbar .user-info { display: none; }
  .topbar { padding: 12px 16px; }
  .card { padding: 16px; }
  .login-box { padding: 28px 22px; }
}

/* ---------- CETAK / PRINT ---------- */
@media print {
  .sidebar, .sidebar-overlay, .topbar, .hamburger,
  .btn, .page-header a, form, .no-print { display: none !important; }
  .main { margin-left: 0 !important; }
  .content { padding: 0 !important; }
  .card { box-shadow: none !important; border: none !important; page-break-inside: avoid; }
  body { background: #fff !important; }
  .page-break { page-break-before: always; }
}

/* ---------- MODAL POP-UP PENGUMUMAN ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,0.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
}
.modal-box {
  background: #fff; border-radius: 14px; max-width: 480px; width: 100%;
  max-height: 85vh; overflow-y: auto; box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.modal-box-header {
  padding: 18px 22px; border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.modal-box-header h3 { margin: 0; font-size: 17px; }
.modal-box-body { padding: 18px 22px; }
.modal-announcement { padding: 12px 0; border-bottom: 1px solid var(--border); }
.modal-announcement:last-child { border-bottom: none; }
.modal-box-footer { padding: 14px 22px; border-top: 1px solid var(--border); text-align: right; }
@media (max-width: 600px) {
  .modal-box { max-height: 90vh; }
}