* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #eef2f7;
  color: #1e293b;
  padding: 20px;
}
.container { max-width: 1200px; margin: auto; }

/* LOGIN */
.login-wrapper {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
}
.login-box {
  background: white; padding: 30px; border-radius: 12px;
  width: 100%; max-width: 400px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}
.login-box h2 { text-align: center; margin-bottom: 20px; color: #1e40af; }
.login-box label { display: block; margin: 12px 0 5px; font-weight: 600; font-size: 0.9rem; }
.login-box input {
  width: 100%; padding: 10px; border: 1px solid #cbd5e1;
  border-radius: 8px; font-size: 0.95rem;
}
.login-box button {
  width: 100%; margin-top: 20px; padding: 12px;
  background: #1e40af; color: white; border: none;
  border-radius: 8px; font-weight: 600; cursor: pointer; font-size: 1rem;
}
.login-box button:hover { background: #1e3a8a; }
.login-info {
  margin-top: 20px; padding-top: 15px;
  border-top: 1px solid #e2e8f0; font-size: 0.85rem; color: #475569;
}

/* HEADER */
header {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white; padding: 18px 25px; border-radius: 12px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px; margin-bottom: 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}
header h1 { font-size: 1.3rem; }
header small { opacity: 0.9; }
.header-right { display: flex; align-items: center; gap: 12px; }

/* CARD */
.card {
  background: white; padding: 20px; border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.07); margin-bottom: 20px;
}
.card h3 { color: #1e40af; margin-bottom: 15px; border-bottom: 2px solid #e2e8f0; padding-bottom: 8px; }

/* FORM */
.form-row { display: flex; gap: 15px; flex-wrap: wrap; }
.form-group { flex: 1; min-width: 200px; margin-bottom: 12px; }
.form-group label { display: block; font-weight: 600; font-size: 0.88rem; margin-bottom: 5px; color: #475569; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 9px; border: 1px solid #cbd5e1;
  border-radius: 8px; font-size: 0.92rem; font-family: inherit;
}
.form-group textarea { resize: vertical; }

/* BUTTONS */
.btn {
  display: inline-block; padding: 9px 16px; border: none; border-radius: 8px;
  font-weight: 600; cursor: pointer; font-size: 0.88rem;
  text-decoration: none; transition: 0.2s; margin: 2px;
}
.btn.sm { padding: 5px 10px; font-size: 0.75rem; }
.btn-primary   { background: #1e40af; color: white; }
.btn-primary:hover { background: #1e3a8a; }
.btn-success   { background: #059669; color: white; }
.btn-success:hover { background: #047857; }
.btn-warning   { background: #d97706; color: white; }
.btn-warning:hover { background: #b45309; }
.btn-danger    { background: #dc2626; color: white; }
.btn-danger:hover { background: #b91c1c; }
.btn-secondary { background: #64748b; color: white; }

/* TABLE */
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td { padding: 9px; border-bottom: 1px solid #e2e8f0; text-align: left; vertical-align: top; }
th { background: #f1f5f9; color: #334155; font-size: 0.78rem; text-transform: uppercase; }
td.small { max-width: 200px; font-size: 0.8rem; color: #475569; }
tr:hover td { background: #f8fafc; }
.empty { text-align: center; padding: 30px; color: #94a3b8; font-style: italic; }

/* BADGE */
.badge {
  display: inline-block; padding: 4px 10px; border-radius: 12px;
  font-size: 0.75rem; font-weight: 600;
}
.badge-belum { background: #fef3c7; color: #b45309; }
.badge-sudah { background: #d1fae5; color: #047857; }
.badge-admin { background: #dbeafe; color: #1e40af; }
.badge-guru  { background: #dcfce7; color: #166534; }
.badge-penilai { background: #fae8ff; color: #86198f; }

/* ALERT */
.alert-error {
  background: #fee2e2; color: #b91c1c; padding: 10px;
  border-radius: 8px; margin-bottom: 15px; font-size: 0.9rem;
}
.alert-success {
  background: #d1fae5; color: #047857; padding: 12px;
  border-radius: 8px; margin-bottom: 15px; font-size: 0.9rem;
  border-left: 4px solid #059669;
}
.print-action { text-align: center; }