:root{--bg:#0b1020;--panel:#0e1426;--border:#1b2744;--card:#0f162b;--text:#e5e7eb;--muted:#9fb3dc;--primary:#3b82f6;--accent:#22c55e;--warn:#f59e0b}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,var(--bg),#0a0f1c);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,"Noto Sans Myanmar","Myanmar Khyay","Padauk",sans-serif}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:1rem}
header{position:sticky;top:0;z-index:50;background:rgba(14,20,38,.8);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;gap:.8rem;padding:.6rem 1rem}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:800}
.brand .logo{width:28px;height:28px;border-radius:8px;overflow:hidden;border:1px solid var(--border);background:#0b1220;display:grid;place-items:center}
.brand .logo svg{width:80%;height:80%}
.sp{flex:1}
.menu{display:flex;gap:.4rem;align-items:center}.menu a{padding:.45rem .6rem;border-radius:8px}.menu a.active,.menu a:hover{background:#0f1830}
.burger{display:none}
@media (max-width:820px){.menu{display:none;position:absolute;left:0;right:0;top:60px;background:#0d1428;border-bottom:1px solid var(--border);flex-direction:column;padding:.6rem}.menu.open{display:flex}.burger{display:inline-flex;background:#0f1830;border:1px solid var(--border);padding:.4rem .6rem;border-radius:8px;cursor:pointer}}
.hero{padding:3rem 1rem;background:radial-gradient(1200px 600px at 20% -10%, rgba(59,130,246,.12), transparent 60%),radial-gradient(900px 500px at 100% 0%, rgba(34,197,94,.10), transparent 60%)}
.hero .wrap{max-width:900px;margin:0 auto;text-align:center}.hero h1{margin:.2rem 0 0;font-size:2.3rem;line-height:1.2}.hero p{color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.6rem .9rem;border-radius:10px;border:1px solid var(--border);background:#101a34;color:var(--text);cursor:pointer;text-decoration:none;font-weight:600}
.btn.primary{background:linear-gradient(135deg,#2563eb,#3b82f6);border-color:#2b5fd1}
.btn.acc{background:linear-gradient(135deg,#16a34a,#22c55e);border-color:#1e9b49}
.btn.warn{background:linear-gradient(135deg,#d97706,#f59e0b);border-color:#d28a16}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1rem}
.muted{color:var(--muted)}
.input,select,textarea{width:100%;padding:.6rem .7rem;border-radius:10px;border:1px solid var(--border);background:#0f1830;color:var(--text)}
.table{width:100%;border-collapse:collapse}.table th,.table td{border:1px solid var(--border);padding:.6rem;text-align:left}
.shop-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}
.product{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:.9rem;display:grid;gap:.5rem}
.product .price{font-weight:800}
.cart-bar{position:sticky;top:64px;background:#0e152b;border-bottom:1px solid var(--border);z-index:5}.cart-bar .wrap{display:flex;align-items:center;gap:.6rem;padding:.6rem 1rem}
.notice{padding:.8rem;border:1px dashed var(--border);border-radius:10px;background:#0f1830;color:var(--muted)}
/* Checkout Gate / QR / Download */
.gate{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1rem;margin-top:1rem}
.qr-box{display:none;margin-top:.8rem}.qr-img{width:240px;max-width:100%;border-radius:12px;border:1px solid var(--border);background:#fff;display:block}
.hint{color:var(--muted);font-size:.9rem}
.dl-row{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap}
.dl-btn[aria-disabled="true"],.dl-btn[disabled]{opacity:.5;cursor:not-allowed;pointer-events:none}
.gate label{display:inline-flex;align-items:center;gap:.35rem;margin:.25rem 0}
@media(max-width:520px){.qr-img{width:200px}}