:root{--s-bg:#070b16;--s-bg-elev:#12182c;--s-bg-card:#171e38;--s-line:#2a3358;--s-text:#f4f6fb;--s-muted:#9aa3c7;--s-accent:#7b61ff}
*{box-sizing:border-box}html,body{margin:0;background:radial-gradient(900px 500px at 0% 0%,#24165a 0%,var(--s-bg) 50%);color:var(--s-text);font-family:Inter,system-ui,sans-serif}
.app{max-width:1180px;margin:0 auto;padding:20px 18px 80px}
.topbar{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand .mark{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--s-accent),#3dd6c6)}
.brand small{display:block;color:var(--s-muted);font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.icon-btn,button,.btn{border:1px solid var(--s-line);background:var(--s-bg-elev);color:var(--s-text);border-radius:12px;padding:8px 12px;cursor:pointer;font:inherit}
.icon-btn{width:42px;height:42px}
.btn.primary{background:linear-gradient(135deg,var(--s-accent),#5b8cff);border-color:transparent}
.drawer{position:fixed;inset:0 auto 0 0;width:min(320px,86vw);background:#0e1428;border-right:1px solid var(--s-line);transform:translateX(-105%);transition:transform .2s ease;z-index:40;padding:16px;display:flex;flex-direction:column;gap:6px}
.drawer.open{transform:none}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.menu-item{width:100%;text-align:left;border-radius:12px}
.menu-item.sub{padding-left:22px;background:transparent}
.scrim{position:fixed;inset:0;background:rgba(4,6,14,.55);z-index:30;display:none;pointer-events:none}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px;align-items:center}
.page-title{margin:0 0 12px;font-size:22px}
select,input,textarea{background:var(--s-bg-elev);color:var(--s-text);border:1px solid var(--s-line);border-radius:10px;padding:10px 12px;font:inherit}
textarea{width:100%;min-height:140px}
.banner{padding:10px 14px;border-radius:10px;margin-bottom:14px;background:#1e2748;color:var(--s-muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.card{background:var(--s-bg-card);border:1px solid var(--s-line);border-radius:16px;overflow:hidden;cursor:pointer;text-align:left;width:100%;color:inherit;padding:0}
.thumb{width:100%;height:150px;object-fit:cover;display:block;background:#0e1530}
.card .meta{padding:12px}.card h3{margin:0 0 4px;font-size:15px}.card p{margin:0;color:var(--s-muted);font-size:13px}
.list{display:flex;flex-direction:column;gap:8px;margin-top:16px}
.note-row{background:var(--s-bg-card);border:1px solid var(--s-line);border-radius:12px;padding:12px}
.viewer{position:fixed;inset:0;background:rgba(6,8,18,.86);display:flex;align-items:center;justify-content:center;z-index:50;padding:24px}
.viewer img{max-width:100%;max-height:72vh;border-radius:12px}
.editor{background:var(--s-bg-card);border:1px solid var(--s-line);border-radius:16px;padding:18px}
.row{display:flex;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.muted{color:var(--s-muted);font-size:13px}

.topbar{position:relative;z-index:45}
.scrim{pointer-events:none;display:none}
.scrim[data-show-on="true"],.drawer.open + .scrim{pointer-events:auto}
.banner{display:none}
.banner.is-on,.banner[style*="display: block"]{display:block}

/* layout: header fixed, main and drawer scroll */
html, body { height: 100%; margin: 0; overflow: hidden; }
.app { height: 100dvh; display: flex; flex-direction: column; overflow: hidden; }
.topbar { flex: 0 0 auto; }
#banner { flex: 0 0 auto; }
#main { flex: 1 1 auto; overflow-y: auto; -webkit-overflow-scrolling: touch; }
#viewer { flex: 0 0 auto; }
.drawer { position: fixed; top: 0; bottom: 0; left: 0; width: min(320px, 86vw); overflow: hidden; display: flex; flex-direction: column; }
.drawer-scroll { flex: 1 1 auto; overflow-y: auto; -webkit-overflow-scrolling: touch; padding-bottom: 24px; }
.menu-item { display: flex; align-items: center; gap: 10px; width: 100%; text-align: left; }
.menu-thumb { width: 28px; height: 28px; object-fit: cover; border-radius: 6px; flex: 0 0 auto; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; padding: 12px; }
.card-wrap { min-width: 0; }
.thumb { width: 100%; height: 140px; object-fit: cover; display: block; }

/* image-guard: discourage casual save / drag */
img.thumb,
.viewer img,
.menu-thumb,
.card img,
figure img {
  -webkit-user-drag: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}