:root{
  --bg:#071f36;
  --panel:#0d2c49;
  --paper:#f7f8fb;
  --text:#eaf4ff;
  --muted:#aac0d2;
  --accent:#00d6c9;
  --line:rgba(255,255,255,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,Segoe UI,Arial,sans-serif;
  background:linear-gradient(180deg,#061a2d,#08243c 42%,#061a2d);
  color:var(--text);
}
.top{
  position:sticky;
  top:0;
  z-index:5;
  background:rgba(7,31,54,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.top-inner{
  max-width:1120px;
  margin:auto;
  padding:14px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.brand,.actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.brand a,.btn{
  color:var(--text);
  text-decoration:none;
  border:1px solid var(--line);
  border-radius:999px;
  padding:9px 12px;
  font-size:13px;
}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#052234;font-weight:800}
header{
  max-width:1120px;
  margin:0 auto;
  padding:58px 20px 34px;
}
.eyebrow{
  font-family:ui-monospace,Consolas,monospace;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
  font-size:12px;
}
h1{
  max-width:900px;
  margin:16px 0 14px;
  font-size:clamp(30px,5vw,56px);
  line-height:1.04;
}
.lead{
  max-width:820px;
  color:#cce2f4;
  font-size:18px;
  line-height:1.65;
}
.meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
  color:var(--muted);
  font-size:13px;
}
.meta span{
  border:1px solid var(--line);
  border-radius:999px;
  padding:7px 10px;
}
.viewer{
  max-width:1120px;
  margin:0 auto 70px;
  padding:0 20px 20px;
}
.note{
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  border-radius:8px;
  padding:14px 16px;
  color:#d7e8f6;
  line-height:1.55;
  margin-bottom:22px;
}
.pages{
  display:grid;
  gap:24px;
}
.page{
  background:var(--paper);
  border-radius:6px;
  padding:10px;
  box-shadow:0 18px 45px rgba(0,0,0,.32);
}
.page img{
  display:block;
  width:100%;
  height:auto;
  border-radius:2px;
}
.page-caption{
  color:#45566a;
  font-size:12px;
  text-align:center;
  margin-top:8px;
}
footer{
  max-width:1120px;
  margin:0 auto;
  padding:0 20px 48px;
  color:var(--muted);
  font-size:13px;
}
@media(max-width:720px){
  .top-inner{align-items:flex-start;flex-direction:column}
  header{padding-top:36px}
  .page{padding:5px}
}