:root {
  --biru-tua: #0b3d91;
  --biru: #1565c0;
  --biru-muda: #4dabf7;
  --oranye: #ff9800;
  --bg: #f4f7fb;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  font-family: 'Poppins', 'Segoe UI', sans-serif;
}

/* ---------- SIDEBAR ---------- */
.sidebar {
  min-height: 100vh;
  width: 250px;
  background: linear-gradient(180deg, var(--biru-tua) 0%, var(--biru) 100%);
  color: #fff;
  position: fixed;
  top: 0; left: 0;
  padding-top: 0;
  z-index: 1030;
  transition: transform .25s ease;
}

.sidebar .brand {
  padding: 22px 20px;
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.sidebar .brand h5 { margin: 0; font-weight: 700; }
.sidebar .brand small { opacity: .75; }

.sidebar .nav-link {
  color: rgba(255,255,255,.85);
  padding: 12px 22px;
  font-weight: 500;
  border-left: 4px solid transparent;
}
.sidebar .nav-link i { width: 22px; }
.sidebar .nav-link:hover,
.sidebar .nav-link.active {
  background: rgba(255,255,255,.12);
  color: #fff;
  border-left: 4px solid var(--oranye);
}

.content-wrap {
  margin-left: 250px;
  padding: 24px 28px 60px;
}

.topbar {
  background: #fff;
  border-radius: 14px;
  padding: 14px 20px;
  box-shadow: 0 4px 18px rgba(0,0,0,.06);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---------- CARDS ---------- */
.card-stat {
  border: none;
  border-radius: 16px;
  padding: 22px;
  color: #fff;
  box-shadow: 0 8px 20px rgba(0,0,0,.08);
  position: relative;
  overflow: hidden;
}
.card-stat i.bg-icon {
  position: absolute; right: -10px; bottom: -10px;
  font-size: 70px; opacity: .18;
}
.card-stat .angka { font-size: 30px; font-weight: 700; }
.bg-hadir { background: linear-gradient(135deg,#11998e,#38ef7d); }
.bg-telat { background: linear-gradient(135deg,#f7971e,#ffd200); }
.bg-alpa  { background: linear-gradient(135deg,#eb3349,#f45c43); }
.bg-total { background: linear-gradient(135deg,#0b3d91,#4dabf7); }

.card {
  border: none;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,.06);
}
.card-header {
  background: #fff;
  border-bottom: 1px solid #eef1f6;
  border-radius: 16px 16px 0 0 !important;
  font-weight: 600;
}

.btn-primary {
  background: var(--biru); border-color: var(--biru);
}
.btn-primary:hover { background: var(--biru-tua); border-color: var(--biru-tua); }

.btn-warning { color: #fff; }

/* ---------- LOGIN ---------- */
.login-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--biru-tua), var(--biru-muda));
}
.login-box {
  background: #fff;
  border-radius: 18px;
  padding: 40px 36px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.login-box .logo-circle {
  width: 72px; height: 72px; border-radius: 50%;
  background: linear-gradient(135deg,var(--biru),var(--oranye));
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
  color: #fff; font-size: 30px;
}

/* ---------- SCANNER ---------- */
#reader { border-radius: 14px; overflow: hidden; }
.scan-result-box {
  border-radius: 16px;
  padding: 18px;
  text-align: center;
  margin-top: 16px;
}

/* ---------- QR CARD CETAK ---------- */
.kartu-qr {
  width: 260px;
  border: 2px dashed #999;
  border-radius: 12px;
  padding: 14px;
  text-align: center;
  display: inline-block;
  margin: 8px;
  page-break-inside: avoid;
}

@media (max-width: 991px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.show { transform: translateX(0); }
  .content-wrap { margin-left: 0; padding: 16px; }
}