:root{
  --bg: #0b1020;
  --panel: rgba(255,255,255,.06);
  --panel-2: rgba(255,255,255,.09);
  --border: rgba(255,255,255,.12);
  --text: #eef2ff;
  --muted: rgba(238,242,255,.72);
  --link: #9bb7ff;
  --shadow: 0 14px 40px rgba(0,0,0,.45);
  --radius: 18px;
  --ring: 0 0 0 4px rgba(155,183,255,.25);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }

body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(900px 500px at 12% 10%, rgba(155,183,255,.18), transparent 60%),
    radial-gradient(700px 500px at 88% 25%, rgba(160,255,214,.10), transparent 55%),
    radial-gradient(900px 650px at 50% 100%, rgba(140,120,255,.10), transparent 65%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.wrap{
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 18px 80px;
}

a{
  color: var(--link);
  text-decoration:none;
  border-bottom: 1px dotted rgba(155,183,255,.45);
}
a:hover{ border-bottom-style: solid; }

.hero{
  display:flex;
  gap: 18px;
  align-items:flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.hero-left{
  min-width: 260px;
  max-width: 640px;
}

h1{
  margin: 0;
  font-size: clamp(34px, 4.5vw, 46px);
  letter-spacing: .2px;
  line-height: 1.05;
}

.hero-sub{
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.badge-row{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.badge{
  display:inline-flex;
  align-items:center;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 22px rgba(0,0,0,.22);
  font-size: 13px;
  color: rgba(238,242,255,.9);
}

.links{
  display:flex;
  gap:10px;
  flex-wrap: wrap;
  align-items:center;
  justify-content:flex-end;
  margin-top: 8px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 10px 14px;
  border-radius: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration:none;
  box-shadow: 0 10px 26px rgba(0,0,0,.22);
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
  border-bottom: none; /* keep button clean */
}

.btn:hover{
  background: var(--panel-2);
  border-color: rgba(155,183,255,.35);
  transform: translateY(-1px);
}

.btn:focus-visible{
  outline:none;
  box-shadow: var(--ring), 0 10px 26px rgba(0,0,0,.22);
}

.card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  margin-top: 14px;
}

.card h2{
  margin: 0 0 12px;
  font-size: 18px;
  letter-spacing: .2px;
}

.muted{ color: var(--muted); }

.list{
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.list li{
  padding: 12px 0;
  border-top: 1px solid rgba(255,255,255,.08);
}
.list li:first-child{ border-top: none; }

.row{
  display:flex;
  gap: 14px;
  align-items:flex-start;
  justify-content: space-between;
}

.desc{
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  max-width: 680px;
}

.pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(155,183,255,.35);
  background: rgba(155,183,255,.10);
  color: var(--text);
  text-decoration:none;
  white-space: nowrap;
  border-bottom: none;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.pill:hover{
  transform: translateY(-1px);
  background: rgba(155,183,255,.16);
  border-color: rgba(155,183,255,.55);
}

.course-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 14px;
  margin-top: 10px;
}

.course-item{
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}

footer{
  margin-top: 18px;
  text-align: center;
  font-size: 13px;
}

@media (max-width: 720px){
  .wrap{ padding-top: 40px; }
  .links{ justify-content: flex-start; }
}

@media (max-width: 680px){
  .course-grid{ grid-template-columns: 1fr; }
  .row{ flex-direction: column; }
  .pill{ align-self: flex-start; }
  .btn{ width: 100%; }
}