:root{
  --bg: #0b1220;
  --bg2:#0f1629;
  --card:#0f172a;
  --txt:#e5e7eb;
  --muted:#94a3b8;
  --accent:#60a5fa;
  --ok:#34d399;
  --bd:#1f2937;
  --ring: rgba(96,165,250,.35);
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#f8fafc; --bg2:#eef2ff; --card:#ffffff; --txt:#0f172a; --muted:#475569; --accent:#2563eb; --ok:#059669; --bd:#e5e7eb; --ring: rgba(37,99,235,.2);
  }
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color:var(--txt);
  background:
    radial-gradient(1200px 600px at 20% -10%, var(--bg2), transparent 60%),
    radial-gradient(1000px 600px at 120% 10%, var(--bg2), transparent 60%),
    var(--bg);
  display:grid;
  place-items:center;
  padding:24px;
}
.wrap{width:min(920px, 94vw)}
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00)),
             var(--card);
  border:1px solid var(--bd);
  border-radius:20px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  overflow:hidden;
}
header{padding:28px 28px 8px;}
.badge{display:inline-flex; gap:8px; align-items:center; padding:6px 10px; border:1px solid var(--bd); border-radius:999px; font-size:12px; color:var(--muted); background:rgba(255,255,255,.02);}
.title{margin:14px 0 6px; font-size:clamp(24px, 4.5vw, 36px); line-height:1.15; letter-spacing:-0.02em;}
.subtitle{color:var(--muted); margin:0 0 8px; font-size:15px}
.grid{display:grid; gap:14px; padding:0 24px 24px}
@media (min-width:720px){ .grid{grid-template-columns:1.2fr .8fr} }
.panel{border:1px solid var(--bd); background:rgba(255,255,255,.02); border-radius:16px; padding:16px 16px;}
.kword{font-weight:700; background: linear-gradient(90deg, var(--accent), var(--ok)); -webkit-background-clip:text; background-clip:text; color:transparent;}
.kv{display:grid; grid-template-columns:140px 1fr; gap:8px; font-size:14px}
.kv .k{color:var(--muted)}
code, pre{font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; font-size:13px}
details{border:1px dashed var(--bd); border-radius:12px; padding:10px 12px; background:rgba(255,255,255,.02)}
details[open]{box-shadow:0 0 0 6px var(--ring) inset}
summary{cursor:pointer; font-weight:600; color:var(--muted)}
.footer{display:flex; justify-content:space-between; align-items:center; padding:14px 20px; border-top:1px solid var(--bd); background:rgba(255,255,255,.02); font-size:13px; color:var(--muted)}
.pill{display:inline-block; padding:4px 8px; border-radius:999px; border:1px solid var(--bd)}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}

.gallery-wrap {
  margin: 40px auto;
  text-align: center;
  max-width: 900px;
}
.gallery-container {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--bd);
  box-shadow: 0 6px 20px rgba(0,0,0,.2);
}
.gallery-track {
  display: flex;
  transition: transform 0.4s ease;
}
.gallery-item {
  min-width: 100%;
  box-sizing: border-box;
}
.gallery-item img {
  width: 100%;
  height: 450px;
  object-fit: cover;
  display: block;
}
.gallery-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.4);
  border: none;
  color: #fff;
  font-size: 28px;
  padding: 8px 14px;
  cursor: pointer;
  border-radius: 50%;
  transition: background 0.3s;
}
.gallery-btn:hover {
  background: rgba(0,0,0,0.7);
}
.gallery-btn.left { left: 10px; }
.gallery-btn.right { right: 10px; }