:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #182033;
  --muted: #687287;
  --primary: #133f7a;
  --primary-dark: #0c2a52;
  --border: #dde3ee;
  --success: #14824a;
  --warning: #a66a00;
  --danger: #b42318;
  --secondary: #667085;
  --dark: #1f2937;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
input, select, textarea, button { font: inherit; }
.login-page { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(135deg, #102a55, #f5f7fb); }
.login-card { width: min(420px, 92vw); background: #fff; border-radius: 18px; padding: 32px; box-shadow: 0 20px 60px rgba(0,0,0,.18); }
.login-card h1 { margin: 0 0 8px; }
.login-card label { display: block; margin-top: 16px; font-weight: 700; }
.login-card input, .form-grid input, .form-grid select, .form-grid textarea, .filters select, .filters input { width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: 11px 12px; margin-top: 6px; background: #fff; }
.demo-login { margin-top: 18px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.app { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.sidebar { background: #0f2b5f; color: #fff; padding: 22px; }
.sidebar .brand, .user-header .brand { font-size: 22px; font-weight: 800; margin-bottom: 26px; }
.sidebar nav { display: grid; gap: 8px; }
.sidebar a { padding: 12px 14px; border-radius: 10px; color: rgba(255,255,255,.88); }
.sidebar a:hover, .sidebar a.active { background: rgba(255,255,255,.12); color: #fff; }
.main { padding: 24px; overflow-x: auto; }
.topbar { display: flex; justify-content: flex-end; align-items: center; min-height: 54px; margin-bottom: 12px; }
.topbar span { color: var(--muted); margin-left: 10px; font-size: 14px; }
h1 { margin: 10px 0 22px; font-size: 30px; }
h2 { margin: 0 0 18px; font-size: 20px; }
.grid.cards { display: grid; grid-template-columns: repeat(6, minmax(140px, 1fr)); gap: 14px; margin-bottom: 22px; }
.card, .panel, .course-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; box-shadow: 0 8px 24px rgba(16,24,40,.04); }
.card span { color: var(--muted); display: block; font-size: 13px; }
.card strong { display: block; font-size: 34px; margin-top: 8px; }
.panel { margin-bottom: 22px; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { text-align: left; border-bottom: 1px solid var(--border); padding: 13px 10px; vertical-align: top; }
th { color: var(--muted); font-size: 13px; background: #f9fafb; }
small { color: var(--muted); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: none; background: var(--primary); color: #fff; border-radius: 10px; padding: 11px 16px; cursor: pointer; font-weight: 700; }
.btn:hover { background: var(--primary-dark); }
.btn.full { width: 100%; margin-top: 22px; }
.btn.light { background: #eef2f8; color: var(--text); }
.btn.light:hover { background: #e1e8f4; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 7px 10px; border-radius: 8px; font-size: 13px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions form { margin: 0; }
.alert { padding: 13px 16px; border-radius: 12px; margin: 10px 0 16px; }
.alert.success { background: #e8f7ef; color: #075e34; border: 1px solid #bde7cd; }
.alert.error { background: #fff0f0; color: #a40000; border: 1px solid #ffd0d0; }
.badge { display: inline-block; padding: 5px 9px; border-radius: 999px; font-size: 12px; font-weight: 700; text-transform: capitalize; }
.badge-success { color: #07623a; background: #dff7ea; }
.badge-warning { color: #8a5700; background: #fff3cd; }
.badge-danger { color: #9f1d16; background: #fde2df; }
.badge-secondary { color: #475467; background: #eef2f6; }
.badge-dark { color: #fff; background: #344054; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(220px, 1fr)); gap: 16px; align-items: start; }
.form-grid label { font-weight: 700; color: #27364f; }
.form-grid .span-2 { grid-column: span 2; }
.two-col { display: grid; grid-template-columns: 1.2fr .8fr; gap: 22px; align-items: start; }
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.filters select, .filters input { width: auto; min-width: 180px; }
.user-shell { min-height: 100vh; }
.user-header { display: flex; justify-content: space-between; align-items: center; background: #fff; border-bottom: 1px solid var(--border); padding: 18px 32px; position: sticky; top: 0; z-index: 10; }
.user-header .brand { margin: 0; color: var(--primary); }
.user-header nav { display: flex; gap: 16px; font-weight: 700; }
.user-main { padding: 28px 32px; }
.course-grid { display: grid; grid-template-columns: repeat(3, minmax(240px, 1fr)); gap: 18px; }
.course-top { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.course-card h2 { margin-bottom: 8px; }
.course-card p { color: var(--muted); min-height: 48px; }
.meta-list { padding-left: 18px; color: #35435c; line-height: 1.8; }
.player-head { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 16px; }
.player-head h1 { margin-bottom: 4px; }
.player-head p { margin: 0; color: var(--muted); }
.scorm-player-wrap { height: calc(100vh - 190px); min-height: 600px; background: #fff; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.scorm-player-wrap iframe { width: 100%; height: 100%; border: 0; }
.certificate-page { background: #eef2f8; padding: 40px; }
.certificate { background: #fff; border: 12px solid #0f2b5f; max-width: 980px; min-height: 620px; margin: auto; padding: 60px; text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,.12); }
.certificate h1 { font-size: 42px; color: #0f2b5f; }
.certificate h2 { font-size: 36px; margin: 22px 0; }
.certificate h3 { font-size: 28px; margin: 16px 0; }
.certificate p { font-size: 18px; color: #475467; }
.certificate-footer { display: flex; justify-content: space-between; align-items: end; margin-top: 70px; }
@media print { .certificate-page { padding: 0; background: #fff; } .btn { display: none; } .certificate { box-shadow: none; max-width: none; min-height: 100vh; } }
@media (max-width: 1100px) { .grid.cards { grid-template-columns: repeat(3, 1fr); } .course-grid { grid-template-columns: repeat(2, 1fr); } .two-col { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .app { grid-template-columns: 1fr; } .sidebar { position: static; } .main, .user-main { padding: 18px; } .grid.cards, .course-grid, .form-grid { grid-template-columns: 1fr; } .form-grid .span-2 { grid-column: span 1; } .user-header, .player-head { flex-direction: column; align-items: flex-start; } .scorm-player-wrap { min-height: 520px; } }