@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

*{box-sizing:border-box;margin:0;padding:0;font-family:'Poppins',sans-serif;}

:root{
  --primary:#1E2A78;
  --primary-light:#2D439C;
  --accent:#F4CF2D;
  --white:#fff;
  --bg:#f1f5fb;
  --card:#fff;
  --border:rgba(30,42,120,.12);
  --text:#0f172a;
  --muted:#6b7280;
  --danger:#ef4444;
  --success:#22c55e;
  --warning:#f59e0b;
  --shadow:0 4px 20px rgba(30,42,120,.10);
  --radius:16px;
  --radius-sm:10px;
}

body{background:var(--bg);color:var(--text);min-height:100vh;}

/* ── NAV ── */
.topnav{
  background:var(--white);
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 32px;position:sticky;top:0;z-index:900;
  box-shadow:0 2px 12px rgba(30,42,120,.09);
}
.topnav-logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
.topnav-logo img{height:44px;}
.topnav-logo .brand{font-weight:800;font-size:1rem;color:var(--primary);line-height:1.2;}
.topnav-logo .brand small{display:block;font-weight:500;font-size:.72rem;color:var(--muted);}

.topnav-links{display:flex;gap:6px;list-style:none;}
.topnav-links a{
  text-decoration:none;color:var(--muted);font-weight:600;font-size:.9rem;
  padding:8px 14px;border-radius:8px;transition:.2s;
}
.topnav-links a:hover,.topnav-links a.active{background:rgba(30,42,120,.08);color:var(--primary);}

.topnav-right{display:flex;align-items:center;gap:14px;}
.btn-nav{
  padding:9px 18px;border-radius:999px;font-weight:700;font-size:.88rem;
  text-decoration:none;border:none;cursor:pointer;transition:.2s;
}
.btn-nav-outline{border:2px solid var(--primary);color:var(--primary);background:transparent;}
.btn-nav-fill{background:var(--primary);color:#fff;}
.btn-nav-fill:hover{background:var(--primary-light);}
.btn-nav-outline:hover{background:rgba(30,42,120,.06);}

.hamburger{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--primary);}

/* ── SIDEBAR LAYOUT ── */
.layout{display:flex;min-height:calc(100vh - 68px);}

.sidebar{
position:relative;
   width:240px;min-width:240px;background:var(--white);
   border-right:1px solid var(--border);padding:28px 16px;
   display:flex;flex-direction:column;gap:6px;
 }
.sidebar .s-title{font-size:.72rem;font-weight:800;color:var(--muted);
  text-transform:uppercase;letter-spacing:.1em;padding:12px 12px 6px;}
.sidebar a{
  display:flex;align-items:center;gap:10px;padding:10px 14px;
  text-decoration:none;color:var(--text);font-weight:600;font-size:.92rem;
  border-radius:10px;transition:.2s;
}
.sidebar a:hover{background:rgba(30,42,120,.07);color:var(--primary);}
.sidebar a.active{background:var(--primary);color:#fff;}
.sidebar a .s-icon{width:20px;text-align:center;font-size:1rem;}
.sidebar .s-sep{border:none;border-top:1px solid var(--border);margin:10px 0;}

.main{flex:1;padding:32px 36px;max-width:1300px;}

/* ── CARDS ── */
.card{background:var(--card);border-radius:var(--radius);padding:24px;
  box-shadow:0 1px 4px rgba(0,0,0,.05);border:1px solid rgba(0,0,0,.04);}
.card-title{font-size:1.05rem;font-weight:700;color:var(--primary);margin-bottom:16px;
  display:flex;align-items:center;gap:8px;}

/* ── STAT CARDS ── */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:28px;}
.stat-card{border-radius:20px;padding:22px 24px;color:#fff;position:relative;overflow:hidden;min-height:140px;
  display:flex;flex-direction:column;justify-content:space-between;}
.stat-card .sc-bg{position:absolute;right:-16px;bottom:-16px;font-size:6rem;opacity:.13;}
.stat-card .sc-label{font-size:.85rem;font-weight:600;opacity:.9;}
.stat-card .sc-val{font-size:2rem;font-weight:800;line-height:1;}
.stat-card .sc-sub{font-size:.8rem;opacity:.75;}
.sc-blue{background:linear-gradient(135deg,#3B82F6,#1D4ED8);}
.sc-indigo{background:linear-gradient(135deg,#6366F1,#4338CA);}
.sc-green{background:linear-gradient(135deg,#10B981,#059669);}
.sc-orange{background:linear-gradient(135deg,#F59E0B,#D97706);}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;
  border-radius:10px;font-weight:700;font-size:.9rem;cursor:pointer;
  border:none;text-decoration:none;transition:.2s;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-light);}
.btn-danger{background:var(--danger);color:#fff;}
.btn-success{background:var(--success);color:#fff;}
.btn-outline{background:#fff;color:var(--primary);border:2px solid var(--primary);}
.btn-outline:hover{background:rgba(30,42,120,.06);}
.btn-sm{padding:7px 14px;font-size:.82rem;}
.btn-block{width:100%;justify-content:center;}

/* ── FORMS ── */
.form-group{margin-bottom:16px;}
.form-label{display:block;font-weight:600;font-size:.88rem;margin-bottom:6px;color:var(--text);}
.form-control{
  width:100%;padding:10px 14px;border:2px solid #e2e8f0;border-radius:10px;
  font-size:.92rem;outline:none;transition:.2s;background:#fff;
}
.form-control:focus{border-color:var(--primary);background:#f8fafc;}
select.form-control{cursor:pointer;}
textarea.form-control{resize:vertical;min-height:90px;}


.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:.9rem;}
thead tr{background:rgba(30,42,120,.06);}
th{padding:12px 16px;text-align:left;font-weight:700;color:var(--primary);white-space:nowrap;}
td{padding:12px 16px;border-bottom:1px solid var(--border);}
tr:last-child td{border-bottom:none;}
tr:hover td{background:rgba(30,42,120,.03);}


.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:700;}
.badge-green{background:#dcfce7;color:#166534;}
.badge-red{background:#fee2e2;color:#991b1b;}
.badge-blue{background:#dbeafe;color:#1e40af;}
.badge-yellow{background:#fef9c3;color:#854d0e;}
.badge-gray{background:#f1f5f9;color:#475569;}


.alert{padding:14px 18px;border-radius:12px;margin-bottom:16px;font-size:.9rem;display:flex;align-items:center;gap:10px;}
.alert-success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0;}
.alert-danger{background:#fee2e2;color:#991b1b;border:1px solid #fecaca;}
.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #bfdbfe;}
.alert-warning{background:#fef9c3;color:#854d0e;border:1px solid #fde68a;}


.page-header{margin-bottom:28px;}
.page-header h1{font-size:1.9rem;font-weight:800;color:var(--primary);margin-bottom:4px;}
.page-header p{color:var(--muted);font-size:.95rem;}

.hero-section{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);
  color:#fff;padding:80px 5% 100px;text-align:center;position:relative;overflow:hidden;
}
.hero-section::before{
  content:'';position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-section h1{font-size:3rem;font-weight:800;margin-bottom:16px;position:relative;}
.hero-section p{font-size:1.1rem;opacity:.9;max-width:600px;margin:0 auto 32px;position:relative;}
.hero-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative;}
.hero-btn{padding:14px 30px;border-radius:999px;font-weight:700;font-size:1rem;text-decoration:none;transition:.2s;}
.hero-btn-white{background:#fff;color:var(--primary);}
.hero-btn-white:hover{background:#f1f5fb;}
.hero-btn-outline{border:2px solid rgba(255,255,255,.6);color:#fff;background:transparent;}
.hero-btn-outline:hover{background:rgba(255,255,255,.1);}

.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;padding:60px 5%;max-width:1200px;margin:0 auto;}
.feat-card{background:#fff;border-radius:20px;padding:28px;text-align:center;box-shadow:var(--shadow);}
.feat-icon{font-size:2.4rem;margin-bottom:14px;}
.feat-card h3{font-size:1.05rem;font-weight:700;color:var(--primary);margin-bottom:8px;}
.feat-card p{font-size:.9rem;color:var(--muted);line-height:1.6;}


.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;}
.course-card{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.07);border:1px solid var(--border);transition:.2s;}
.course-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(30,42,120,.12);}
.course-card-header{background:linear-gradient(135deg,var(--primary),var(--primary-light));padding:28px 20px;color:#fff;}
.course-card-header .cc-code{font-size:.8rem;opacity:.8;font-weight:600;letter-spacing:.05em;}
.course-card-header .cc-name{font-size:1.1rem;font-weight:700;margin-top:4px;}
.course-card-body{padding:18px 20px;}
.course-card-body p{font-size:.88rem;color:var(--muted);line-height:1.6;margin-bottom:14px;}
.cc-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;}
.cc-tag{font-size:.78rem;background:rgba(30,42,120,.07);color:var(--primary);padding:4px 10px;border-radius:999px;font-weight:600;}


.quiz-option{
  display:flex;align-items:center;gap:14px;padding:14px 18px;
  border:2px solid var(--border);border-radius:12px;cursor:pointer;transition:.2s;
  margin-bottom:10px;font-weight:500;
}
.quiz-option:hover{border-color:var(--primary);background:rgba(30,42,120,.04);}
.quiz-option input[type=radio]{accent-color:var(--primary);width:18px;height:18px;}
.quiz-option.correct{border-color:var(--success);background:#dcfce7;}
.quiz-option.wrong{border-color:var(--danger);background:#fee2e2;}

footer{background:var(--primary);color:rgba(255,255,255,.8);text-align:center;padding:22px;font-size:.88rem;margin-top:auto;}
footer a{color:var(--accent);text-decoration:none;}

.sidebar-close {
  display: none;
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--primary);
  cursor: pointer;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.mobile-hamburger {
  display: none;
  position: fixed;
  bottom: 25px;
  right: 25px;
  z-index: 999;
  background: var(--primary);
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.4rem;
  color: var(--white);
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(30,42,120,0.4);
}

@media(max-width:900px){
  .mobile-hamburger { display: block; }

  .sidebar {
    position: fixed;
    top: 0;
    left: -260px;
    width: 260px;
    height: 100vh;
    z-index: 1000;
    transition: 0.3s ease-in-out;
    box-shadow: 10px 0 20px rgba(0,0,0,0.1);
    display: flex;
    padding-top: 56px; 
  }

  .sidebar.open {
    left: 0;
  }

  .sidebar-close {
    display: flex;
  }

  .main {
    padding: 20px;
    width: 100%;
  }

  .sidebar.open::after {
    content: '';
    position: fixed;
    top: 0;
    left: 260px;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.3);
    z-index: -1;
  }
}

@media(max-width:640px) {
  .topnav-links{display:none;}
  .hamburger{display:block;}
  .hero-section h1{font-size:2rem;}
  .stat-grid{grid-template-columns:1fr 1fr;}
}