:root{
  --bg:#0b1220;
  --card:#0f172a;
  --text:#e5e7eb;
  --muted:#94a3b8;
  --primary:#22c55e;
  --primary2:#38bdf8;
  --border:rgba(255,255,255,.10);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 18px;
  --radius2: 24px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
}
*{box-sizing:border-box}
body{font-family:var(--font)}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1rem;border-radius:16px;border:1px solid var(--border);background:rgba(255,255,255,.06);color:var(--text);text-decoration:none;font-weight:700}
.btn:hover{background:rgba(255,255,255,.10)}
.btn-primary{background:#fff;color:#0b1220;border-color:transparent}
.btn-primary:hover{filter:brightness(.95)}
.card{background:rgba(255,255,255,.05);border:1px solid var(--border);border-radius:var(--radius2);box-shadow:var(--shadow)}
.badge{display:inline-flex;align-items:center;gap:.5rem;font-size:12px;padding:.35rem .6rem;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--text)}
.input,.select,textarea{width:100%;padding:.65rem .8rem;border-radius:14px;border:1px solid rgba(15,23,42,.4);background:#0b1220;color:var(--text);outline:none}
.label{font-size:12px;color:var(--muted);margin-bottom:6px;display:block}
.hr{height:1px;background:var(--border);margin:14px 0}
.grid2{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width: 980px){.grid2{grid-template-columns:420px 1fr;gap:18px}}
.builder-shell{min-height: calc(100vh - 60px);}
.builder-left{position:sticky;top:70px;max-height:calc(100vh - 90px);overflow:auto;padding:16px}
.builder-right{padding:16px}
.section-row{display:flex;gap:8px;align-items:center;justify-content:space-between}
.section-row .meta{min-width:0}
.section-row .meta b{display:block}
.section-row .meta span{font-size:12px;color:var(--muted)}
.iconbtn{width:38px;height:38px;border-radius:12px;border:1px solid var(--border);background:rgba(255,255,255,.06);color:var(--text);cursor:pointer}
.iconbtn:hover{background:rgba(255,255,255,.10)}
.flipbook{position:relative;max-width:980px;margin:0 auto}
.flip-stage{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.page{background:rgba(255,255,255,.05);border:1px solid var(--border);border-radius:20px;min-height:520px;padding:18px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.page:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg, rgba(34,197,94,.10), rgba(56,189,248,.08), rgba(217,70,239,.06));opacity:.35;pointer-events:none}
.page h2{position:relative;margin:0 0 8px 0;font-size:20px}
.page .items{position:relative;display:grid;grid-template-columns:1fr;gap:10px}
.item{display:flex;gap:12px;align-items:flex-start;border:1px dashed rgba(255,255,255,.12);border-radius:16px;padding:10px;background:rgba(2,6,23,.35)}
.item img{width:70px;height:70px;border-radius:14px;object-fit:cover;border:1px solid rgba(255,255,255,.12)}
.item .name{font-weight:800}
.item .desc{font-size:12px;color:var(--muted);margin-top:2px}
.item .price{margin-left:auto;font-weight:900;white-space:nowrap}
.flip-controls{display:flex;justify-content:center;gap:10px;margin-top:14px}
.small{font-size:12px;color:var(--muted)}