:root {
  --navy: #0B1F3A;
  --navy-light: #142c52;
  --navy-lighter: #1c3a6b;
  --gold: #D4AF37;
  --gold-dark: #b8942c;
  --bg: #F3F4F7;
  --card-bg: #FFFFFF;
  --text: #1F2430;
  --text-muted: #6B7280;
  --border: #E5E7EB;
  --success: #16A34A;
  --success-bg: #DCFCE7;
  --warning: #D97706;
  --warning-bg: #FEF3C7;
  --danger: #DC2626;
  --danger-bg: #FEE2E2;
  --info: #2563EB;
  --info-bg: #DBEAFE;
  --va-bg: #FDF6E3;
  --va-text: #8a6d1a;
  --gold-bg: #FFF9EC;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

a { color: inherit; text-decoration: none; }

/* ---- App shell ---- */
.app-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 60px;
  background: var(--navy);
  border-bottom: 3px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 100;
  color: #fff;
}

.app-header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.3px;
}

.app-header .brand .brand-mark {
  color: var(--gold);
}

.app-header .header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
}

.app-header select#headerSekolahSelect {
  background: var(--navy-light);
  color: #fff;
  border: 1px solid var(--navy-lighter);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
}

.app-header .sekolah-locked {
  background: var(--navy-light);
  border: 1px solid var(--navy-lighter);
  border-radius: 6px;
  padding: 6px 10px;
  color: #d9dfea;
}

.app-header .user-chip {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
  text-align: right;
}

.app-header .user-chip strong { color: #fff; font-size: 13px; }
.app-header .user-chip span { color: #9fb0cc; font-size: 11px; text-transform: uppercase; letter-spacing: 0.4px; }

.app-header button.btn-logout {
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
}
.app-header button.btn-logout:hover { background: var(--gold); color: var(--navy); }

.app-sidebar {
  position: fixed;
  top: 60px; left: 0; bottom: 0;
  width: 220px;
  background: var(--navy);
  padding: 16px 0;
  overflow-y: auto;
}

.app-sidebar nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  color: #c3cee2;
  font-size: 13.5px;
  border-left: 3px solid transparent;
}

.app-sidebar nav a:hover { background: var(--navy-light); color: #fff; }

.app-sidebar nav a.active {
  background: var(--navy-light);
  border-left-color: var(--gold);
  color: #fff;
  font-weight: 600;
}

.app-sidebar nav a.disabled {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}

.app-sidebar nav .menu-icon { width: 18px; text-align: center; }

.app-sidebar nav .badge-soon {
  margin-left: auto;
  font-size: 9px;
  background: var(--navy-lighter);
  color: #9fb0cc;
  padding: 1px 6px;
  border-radius: 10px;
}

.app-main {
  margin-left: 220px;
  margin-top: 60px;
  padding: 24px 28px;
  min-height: calc(100vh - 60px);
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--navy);
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0 0 20px;
}

/* ---- Cards ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  border-top: 3px solid var(--navy);
}
.summary-card.accent-gold { border-top-color: var(--gold); }
.summary-card.accent-success { border-top-color: var(--success); }
.summary-card.accent-warning { border-top-color: var(--warning); }

.summary-card .label {
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 6px;
}
.summary-card .value {
  font-size: 24px;
  font-weight: 700;
  color: var(--navy);
}
.summary-card .sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 22px;
  margin-bottom: 20px;
}
.panel h2 {
  font-size: 15px;
  margin: 0 0 14px;
  color: var(--navy);
}

/* ---- Forms ---- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
  margin-bottom: 16px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
}
.field input, .field select, .field textarea {
  padding: 7px 10px;
  border: 1px solid #d5d8de;
  border-radius: 6px;
  font-size: 13.5px;
  min-width: 140px;
}
.field.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 6px;
  padding-bottom: 6px;
}

button, .btn {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  background: var(--navy);
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
}
button:hover { background: var(--navy-light); }
button.btn-gold { background: var(--gold); color: var(--navy); font-weight: 700; }
button.btn-gold:hover { background: var(--gold-dark); }
button.btn-secondary { background: #fff; color: var(--navy); border: 1px solid var(--border); }
button.btn-secondary:hover { background: #f0f1f4; }
button.btn-danger { background: var(--danger); }
button.btn-danger:hover { background: #b91c1c; }
button.btn-sm { padding: 5px 10px; font-size: 12px; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---- Tables ---- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  text-align: left;
  background: #f7f8fa;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
tbody td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
tbody tr:hover { background: #fafbfc; }
tbody tr.detail-row:hover { background: transparent; }

/* ---- Badges ---- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-lunas { background: var(--success-bg); color: var(--success); }
.badge-belum_bayar { background: var(--warning-bg); color: var(--warning); }
.badge-cicilan { background: var(--info-bg); color: var(--info); }
.badge-batal { background: var(--danger-bg); color: var(--danger); }
.badge-va { background: var(--va-bg); color: var(--va-text); border: 1px solid var(--gold); }
.badge-tunai { background: var(--success-bg); color: var(--success); }
.badge-transfer_manual { background: var(--info-bg); color: var(--info); }

/* ---- Alerts / messages ---- */
.msg { font-size: 13px; padding: 8px 0; min-height: 18px; }
.msg-ok { color: var(--success); }
.msg-err { color: var(--danger); }

.alert {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}
.alert-info { background: var(--info-bg); color: var(--info); }
.alert-warning { background: var(--warning-bg); color: var(--warning); }

.hint { color: var(--text-muted); font-size: 12px; }

pre.result-box {
  white-space: pre-wrap;
  font-size: 12px;
  background: #f7f8fa;
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 8px;
}

/* ---- Login page ---- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--navy) 0%, #14284d 60%, var(--navy) 100%);
}
.login-card {
  background: #fff;
  width: 100%;
  max-width: 380px;
  border-radius: 12px;
  padding: 32px 32px 28px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  border-top: 4px solid var(--gold);
}
.login-card .brand {
  text-align: center;
  margin-bottom: 24px;
}
.login-card .brand .brand-mark {
  color: var(--gold);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 0.5px;
}
.login-card .brand .brand-sub {
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 2px;
}
.login-card form { display: flex; flex-direction: column; gap: 14px; }
.login-card label { font-size: 12px; color: var(--text-muted); display: flex; flex-direction: column; gap: 5px; }
.login-card input, .login-card select {
  padding: 10px 12px;
  border: 1px solid #d5d8de;
  border-radius: 8px;
  font-size: 14px;
}
.login-card button[type=submit] {
  margin-top: 6px;
  padding: 11px;
  border-radius: 8px;
  font-size: 14px;
}
.login-card .demo-accounts {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- Portal wali (public) ---- */
.portal-page {
  min-height: 100vh;
  background: var(--bg);
}
.portal-header {
  background: var(--navy);
  border-bottom: 3px solid var(--gold);
  color: #fff;
  padding: 18px 20px;
  text-align: center;
}
.portal-header .brand-mark { color: var(--gold); font-weight: 800; font-size: 18px; }
.portal-header .brand-sub { color: #c3cee2; font-size: 12px; margin-top: 2px; }
.portal-container {
  max-width: 560px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}
.portal-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 18px;
}
.portal-card h2 { font-size: 15px; margin: 0 0 12px; color: var(--navy); }
.portal-form { display: flex; flex-direction: column; gap: 12px; }
.portal-form label { font-size: 12.5px; color: var(--text-muted); display: flex; flex-direction: column; gap: 5px; }
.portal-form input {
  padding: 10px 12px;
  border: 1px solid #d5d8de;
  border-radius: 8px;
  font-size: 14px;
}
.va-box {
  background: var(--va-bg);
  border: 1px solid var(--gold);
  border-radius: 10px;
  padding: 16px;
  margin-top: 12px;
}
.va-box .va-number {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--navy);
  margin: 6px 0;
}
.rincian-item { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.rincian-total { display: flex; justify-content: space-between; padding-top: 10px; font-weight: 700; color: var(--navy); }

/* ---- Panel kerja utama kasir: lebih menonjol dari panel biasa ---- */
.panel-kasir {
  background: var(--gold-bg);
  border: 1px solid var(--border);
  border-top: 4px solid var(--gold);
  border-radius: 14px;
  padding: 28px 30px;
  margin-bottom: 20px;
  box-shadow: 0 12px 32px rgba(11, 31, 58, 0.08);
}
.panel-kasir h2 { font-size: 16px; }

/* ---- Kasir: pencarian siswa (autocomplete), pilih tagihan, kartu rincian ---- */
.search-wrap { position: relative; }
.search-wrap input { width: 100%; }
.suggestion-list {
  position: absolute;
  z-index: 30;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-height: 300px;
  overflow-y: auto;
  box-shadow: 0 14px 36px rgba(11, 31, 58, 0.18);
}
.suggestion-item {
  padding: 11px 14px;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 8px;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.suggestion-item:hover, .suggestion-item.active {
  background: var(--gold-bg);
  border-color: var(--gold);
}
.suggestion-item .nama { font-weight: 600; color: var(--navy); font-size: 13.5px; }
.suggestion-item .meta { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.suggestion-empty {
  padding: 11px 14px;
  color: var(--text-muted);
  font-size: 12.5px;
}

.bill-pick-list { display: flex; flex-direction: column; gap: 8px; margin: 12px 0; }
.bill-pick-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  background: var(--card-bg);
  transition: border-color 0.12s ease, background 0.12s ease, transform 0.12s ease;
}
.bill-pick-item:hover {
  border-color: var(--gold);
  background: var(--gold-bg);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(11, 31, 58, 0.1);
}
.bill-pick-item .periode { font-weight: 600; color: var(--navy); font-size: 13px; }
.bill-pick-item .nominal { font-size: 13px; color: var(--text-muted); }

/* ---- Rincian item dgn checkbox (pembayaran per-item) ---- */
.rincian-item-checkable label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.rincian-item-checkable input[type="checkbox"] { cursor: pointer; width: 16px; height: 16px; }
.rincian-item-paid { opacity: 0.65; }
.rincian-item-paid .item-label { display: flex; align-items: center; gap: 6px; }

.detail-card {
  background: #f7f8fa;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  margin: 14px 0;
}
.detail-card .siswa-nama { font-size: 15px; font-weight: 700; color: var(--navy); }
.detail-card .siswa-meta { font-size: 12.5px; color: var(--text-muted); margin: 2px 0 12px; }
.detail-card .btn-ganti { margin-left: auto; }
.detail-card .card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }

@media (max-width: 720px) {
  .app-sidebar { transform: translateX(-100%); transition: transform 0.2s; }
  .app-sidebar.open { transform: translateX(0); }
  .app-main { margin-left: 0; }
}