*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }

body{
  font-family: Arial, Tahoma, sans-serif;
  line-height: 1.8;
  background:#0b1220;
  color:#e9eefc;
}

.container{
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header{
  padding: 38px 0 20px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0));
}

h1{ margin:0 0 8px; font-size: 32px; }
.subtitle{ margin:0 0 14px; opacity:0.9; }

.actions{
  display:flex;
  gap:10px;
  flex-wrap: wrap;
}

.btn{
  display:inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  text-decoration:none;
  color:#0b1220;
  background:#e9eefc;
  font-weight:700;
}

.btn-ghost{
  background: transparent;
  color:#e9eefc;
  border:1px solid rgba(255,255,255,0.2);
}

.hero{
  padding: 18px 0 10px;
}

.hero img{
  width:100%;
  max-height: 920px;
  object-fit: cover;
  border-radius: 16px;
  border:1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
}

.note, .refs{
  margin-top: 16px;
  padding: 14px 14px;
  border-radius: 16px;
  border:1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.06);
  text-align: left;
}

.note h2, .refs h2{
  margin: 0 0 8px;
  font-size: 18px;
  text-align: left;
}

.pdf-wrap{
  margin-top: 16px;
  border-radius: 16px;
  overflow: hidden;
  border:1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
}

.pdf{
  width:100%;
  height: 78vh;
  border:0;
}

.pdf-fallback{
  margin: 0;
  padding: 10px 14px;
  opacity: 0.9;
  text-align: left;
}

.site-footer{
  margin-top: 22px;
  padding: 16px 0;
  border-top: 1px solid rgba(255,255,255,0.10);
  opacity: 0.9;
}

a{ color:#cfe0ff; }

@media (max-width: 560px){
  h1{ font-size: 26px; }
  .pdf{ height: 72vh; }
}