:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e9ef;
  --muted: #9aa3b2;
  --accent: #4ea1ff;
  --ok: #34d399;
  --warn: #fbbf24;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
  display: flex;
  flex-direction: column;
}

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.logo { color: var(--accent); font-size: 22px; }
.brand-name { font-weight: 700; font-size: 20px; }
.tagline { color: var(--muted); font-size: 13px; }
.header-badges { display: flex; gap: 8px; }
.hbadge {
  font-size: 12px; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted);
}
.hbadge.ok { color: var(--ok); border-color: rgba(52,211,153,0.4); }

/* Layout */
.layout { flex: 1; display: grid; grid-template-columns: 340px 1fr; min-height: 0; }
.sidebar { border-right: 1px solid var(--border); display: flex; flex-direction: column; min-height: 0; }

/* Search */
.searchbox { padding: 14px; border-bottom: 1px solid var(--border); }
#q {
  width: 100%; padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--panel2); color: var(--text);
  font-size: 14px; outline: none;
}
#q:focus { border-color: var(--accent); }
.result-count { color: var(--muted); font-size: 12px; margin-top: 8px; }

/* List */
.list { overflow-y: auto; padding: 10px; display: flex; flex-direction: column; gap: 8px; }
.card {
  text-align: left; cursor: pointer; width: 100%;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px; color: var(--text); transition: border-color .15s, background .15s;
}
.card:hover { border-color: var(--accent); }
.card.active { border-color: var(--accent); background: var(--panel2); }
.card-name { font-weight: 600; font-size: 14px; }
.card-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.badges { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 4px; }
.badge {
  font-size: 10px; padding: 2px 6px; border-radius: 4px;
  background: var(--panel2); border: 1px solid var(--border); color: var(--muted);
}

/* Detail */
.detail { display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.viewer { position: relative; height: 46%; min-height: 240px; background: radial-gradient(circle at 50% 40%, #1b2030, #0d0f14); }
.viewer canvas { display: block; }
.viewer-msg {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 14px;
}
.info { padding: 22px 26px; overflow-y: auto; }
.info.hidden, .viewer-msg.hidden { display: none; }
h1 { font-size: 22px; margin: 0 0 6px; }
.desc { color: var(--muted); margin: 0 0 14px; line-height: 1.5; }
h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 20px 0 10px; }
.nologin { color: var(--ok); text-transform: none; letter-spacing: 0; }

.warn {
  background: rgba(251,191,36,0.08); border: 1px solid rgba(251,191,36,0.35);
  color: var(--warn); padding: 10px 12px; border-radius: 8px; font-size: 13px;
}
.warn.hidden { display: none; }

.specs { border-collapse: collapse; width: 100%; max-width: 420px; }
.specs td { padding: 6px 10px; border-bottom: 1px solid var(--border); font-size: 13px; }
.specs td:first-child { color: var(--muted); width: 130px; }

.downloads { display: flex; flex-wrap: wrap; gap: 10px; }
.dl {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 14px; border-radius: 8px; font-size: 13px; transition: border-color .15s;
}
.dl:hover { border-color: var(--accent); }
.dl .ext { color: var(--accent); font-weight: 600; }

.buy {
  display: inline-block; text-decoration: none;
  background: var(--accent); color: #08111f; font-weight: 600;
  padding: 11px 18px; border-radius: 8px; font-size: 14px;
}
.affiliate-note { color: var(--muted); font-size: 11px; margin-top: 8px; }

/* 부품 단독 페이지 (SEO) */
.part-page { max-width: 820px; margin: 0 auto; padding: 24px 26px 48px; }
.crumb { color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.crumb a { color: var(--accent); text-decoration: none; }
.part-viewer { position: relative; height: 360px; border: 1px solid var(--border); border-radius: 12px; margin: 16px 0; }

/* 문서 페이지 (소개 / 가이드) */
.doc-page { max-width: 760px; margin: 0 auto; padding: 26px 26px 48px; line-height: 1.65; }
.doc-page h1 { font-size: 24px; }
.doc-page h2 { font-size: 14px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin-top: 26px; }
.doc-page ul, .doc-page ol { padding-left: 22px; }
.doc-page li { margin: 6px 0; }
.doc-page a { color: var(--accent); }
.doc-page code { background: var(--panel2); border: 1px solid var(--border); padding: 1px 6px; border-radius: 4px; font-size: 13px; }

/* 푸터 */
.site-footer { border-top: 1px solid var(--border); padding: 20px 26px; color: var(--muted); font-size: 13px;
  display: flex; flex-wrap: wrap; gap: 10px 20px; align-items: center; justify-content: space-between; }
.foot-nav { display: flex; gap: 16px; }
.site-footer a { color: var(--accent); text-decoration: none; }
.foot-lic { font-size: 11px; width: 100%; opacity: .8; }

/* 모바일 반응형 */
@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  .list { max-height: 40vh; }
  .viewer { height: 300px; }
  .tagline { display: none; }
  .topbar { flex-wrap: wrap; gap: 8px; }
  .info { padding: 18px 16px; }
  .part-page { padding: 18px 16px 40px; }
  .part-viewer { height: 280px; }
}