:root{
  --navy:#0a1929;
  --navy-dark:#061018;
  --gold:#C9A961;
  --serif:'Georgia','Times New Roman',serif;
  --sans:'Helvetica Neue','Arial',sans-serif;
  --text:#1a1a1a;
  --border:#e0ddd6;
  --bg:#fdfcfa;
}
*{box-sizing:border-box;}
body{margin:0;font-family:var(--serif);color:var(--text);background:var(--bg);line-height:1.6;}
a{color:var(--navy);text-decoration:none;}
a:hover{color:var(--gold);}
.pnav{background:var(--navy);color:#fff;padding:14px 24px;}
.pnav-inner{max-width:960px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.pnav-logo{font-family:var(--sans);font-weight:700;letter-spacing:1px;color:#fff;font-size:15px;}
.pnav-logo span{color:var(--gold);}
.pnav-title{font-family:var(--sans);font-size:13px;color:#c9c9c9;}
.pmain{max-width:960px;margin:0 auto;padding:32px 24px 64px;min-height:60vh;}
.pfooter{background:var(--navy-dark);color:#9aa5ad;text-align:center;padding:24px;font-family:var(--sans);font-size:12px;}
.pfooter a{color:var(--gold);}
.pheader h1{font-family:var(--serif);color:var(--navy);font-size:32px;margin-bottom:6px;}
.pheader p{font-family:var(--sans);color:#666;}
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;margin:28px 0;}
.module-card{border:1px solid var(--border);border-radius:8px;padding:20px;background:#fff;}
.module-num{font-family:var(--sans);color:var(--gold);font-weight:700;font-size:12px;letter-spacing:1px;text-transform:uppercase;}
.module-card h3{font-family:var(--serif);color:var(--navy);margin:6px 0 14px;font-size:20px;}
.module-links{display:flex;gap:14px;font-family:var(--sans);font-size:14px;margin-bottom:10px;}
.module-progress{font-family:var(--sans);font-size:12px;color:#999;}
.module-progress.done{color:#2e7d32;font-weight:600;}
.capstone-cta{text-align:center;margin-top:32px;padding:20px;background:#f4f1ea;border-radius:8px;}
.capstone-cta a{font-family:var(--sans);font-weight:600;color:var(--navy);}
.back-link{font-family:var(--sans);font-size:13px;display:inline-block;margin-bottom:16px;}
.lesson-header{border-bottom:2px solid var(--gold);padding-bottom:14px;margin-bottom:24px;}
.module-tag{font-family:var(--sans);color:var(--gold);font-weight:700;font-size:12px;letter-spacing:1px;text-transform:uppercase;}
.lesson-header h1{font-family:var(--serif);color:var(--navy);font-size:28px;margin:6px 0 0;}
.lesson-pager{display:flex;justify-content:space-between;gap:10px;font-family:var(--sans);font-size:13px;margin:16px 0;flex-wrap:wrap;}
.lesson-pager a{padding:8px 12px;border:1px solid var(--border);border-radius:6px;}
.lesson-body h2{font-family:var(--serif);color:var(--navy);border-top:1px solid var(--border);padding-top:20px;margin-top:32px;}
.lesson-body h3{font-family:var(--sans);color:#333;font-size:16px;text-transform:uppercase;letter-spacing:.5px;}
.lesson-body table{border-collapse:collapse;width:100%;margin:16px 0;font-family:var(--sans);font-size:14px;}
.lesson-body th,.lesson-body td{border:1px solid var(--border);padding:8px 10px;text-align:left;}
.lesson-body th{background:#f4f1ea;}
.lesson-body pre{background:#0a1929;color:#e8e8e8;padding:14px;border-radius:6px;overflow-x:auto;font-size:13px;}
.lesson-body code{font-family:Consolas,monospace;}
.mark-complete-btn{font-family:var(--sans);background:var(--navy);color:#fff;border:none;padding:12px 20px;border-radius:6px;cursor:pointer;margin-top:20px;font-size:14px;}
.mark-complete-btn:disabled{background:#2e7d32;}
.slide-note{font-family:var(--sans);font-size:13px;background:#fff4d6;border:1px solid #e8d18a;padding:10px 14px;border-radius:6px;}
.slide-deck{border:1px solid var(--border);border-radius:8px;min-height:360px;position:relative;background:#fff;}
.slide{display:none;padding:40px;}
.slide.active{display:block;}
.slide-inner h2{font-family:var(--serif);color:var(--navy);font-size:26px;margin-top:0;border-bottom:2px solid var(--gold);padding-bottom:10px;}
.slide-inner table{border-collapse:collapse;width:100%;font-family:var(--sans);font-size:14px;}
.slide-inner th,.slide-inner td{border:1px solid var(--border);padding:6px 10px;}
.slide-inner pre{background:#0a1929;color:#e8e8e8;padding:12px;border-radius:6px;font-size:12px;overflow-x:auto;}
.slide-nav{display:flex;align-items:center;justify-content:center;gap:20px;margin-top:16px;font-family:var(--sans);}
.slide-nav button{background:var(--navy);color:#fff;border:none;padding:10px 18px;border-radius:6px;cursor:pointer;font-size:14px;}
.slide-nav button:hover{background:var(--gold);color:var(--navy);}
#slideCounter{font-size:13px;color:#666;}
.quiz-q{border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:16px;background:#fff;}
.quiz-q-head{font-family:var(--sans);font-weight:600;margin-bottom:10px;}
.q-num{color:var(--gold);margin-right:8px;}
.quiz-options{list-style:none;padding:0;font-family:var(--sans);font-size:14px;margin:0 0 12px;}
.quiz-options li{padding:6px 0;}
.reveal-btn{font-family:var(--sans);background:#fff;border:1px solid var(--navy);color:var(--navy);padding:8px 14px;border-radius:6px;cursor:pointer;font-size:13px;}
.reveal-btn:hover{background:var(--navy);color:#fff;}
.quiz-answer{display:none;margin-top:12px;padding:12px;background:#f0f7f0;border-radius:6px;font-family:var(--sans);font-size:14px;}
.quiz-answer.shown{display:block;}
.quiz-explain{margin:8px 0 0;color:#444;}
.login-box,.hero-box{max-width:440px;margin:40px auto;text-align:center;background:#fff;border:1px solid var(--border);border-radius:10px;padding:36px;}
.login-box h1,.hero-box h1{font-family:var(--serif);color:var(--navy);font-size:26px;}
.login-box p,.hero-box p{font-family:var(--sans);color:#555;font-size:14px;}
.login-box form{display:flex;gap:8px;margin:20px 0;flex-wrap:wrap;}
.login-box input{flex:1;min-width:180px;padding:12px;border:1px solid var(--border);border-radius:6px;font-family:var(--sans);}
.login-box button,.btn-primary{background:var(--navy);color:#fff;border:none;padding:12px 20px;border-radius:6px;cursor:pointer;font-family:var(--sans);font-weight:600;display:inline-block;}
.btn-primary{margin:10px 0;}
.login-msg{font-family:var(--sans);font-size:13px;color:var(--navy);min-height:18px;}
.login-fine{font-size:12px;color:#888;}
@media (max-width:640px){
  .pmain{padding:20px 16px 48px;}
  .lesson-pager{flex-direction:column;}
  .slide{padding:24px 18px;}
  .module-grid{grid-template-columns:1fr;}
}
@media print{
  .pnav,.pfooter,.slide-nav,.back-link,.lesson-pager,.mark-complete-btn{display:none !important;}
  .slide{display:block !important;page-break-after:always;}
}