:root{
  --bg-main:#121316; --card-bg:#1c1e24; --panel:#17191e;
  --accent:#2563eb; --accent-hover:#1d4ed8;
  --text-main:#f3f4f6; --text-dim:#9ca3af; --border:#2e323b;
  --good:#16a34a; --warn:#d97706; --bad:#dc2626;
  --fab-size:60px; --fab-gap:24px;
  /* space the fab + panel need so they never sit over content */
  --fab-safe:calc(var(--fab-size) + var(--fab-gap) * 2);
}
*{box-sizing:border-box;margin:0;padding:0;font-family:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif}
html{scroll-padding-top:80px}
body{background:var(--bg-main);color:var(--text-main);line-height:1.5;display:flex;flex-direction:column;min-height:100vh}
a{color:inherit}
img{max-width:100%;display:block}
.skip-link{position:absolute;left:-999px}
.skip-link:focus{left:1rem;top:1rem;background:var(--accent);padding:.5rem 1rem;border-radius:4px;z-index:2000}

/* ---------- header ---------- */
.site-header{background:#0b0c0e;border-bottom:2px solid var(--accent);position:sticky;top:0;z-index:100;
  padding:1rem 1.5rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.logo{font-size:1.4rem;font-weight:800;text-transform:uppercase;letter-spacing:.5px;text-decoration:none}
.logo span{color:var(--accent)}
.main-nav{display:flex;gap:1.25rem;align-items:center;flex-wrap:wrap}
.main-nav a{color:var(--text-main);text-decoration:none;font-weight:600;font-size:.95rem}
.main-nav a:hover{color:var(--accent)}
.nav-admin{color:var(--warn)!important}
.nav-cart{background:var(--card-bg);padding:.35rem .7rem;border-radius:6px;border:1px solid var(--border)}
.cart-count{display:inline-block;min-width:1.3em;text-align:center;background:var(--accent);color:#fff;border-radius:999px;font-size:.8rem;padding:0 .35em}
.nav-toggle{display:none;background:none;border:none;color:var(--text-main);font-size:1.5rem;cursor:pointer}

/* ---------- layout ---------- */
.site-main{flex:1;padding-bottom:var(--fab-safe)}       /* keep fab off content */
.site-footer{background:#0b0c0e;border-top:1px solid var(--border);color:var(--text-dim);font-size:.85rem;
  padding:2.5rem 1.5rem;padding-right:max(1.5rem,var(--fab-safe))}  /* keep fab off footer links */
.footer-cols{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem}
.footer-cols a{display:block;color:var(--text-dim);text-decoration:none;padding:.15rem 0}
.footer-cols a:hover{color:var(--text-main)}
.footer-cols strong{color:var(--text-main);display:block;margin-bottom:.5rem}
.copyright{text-align:center;margin-top:2rem}

.flash{max-width:1100px;margin:1rem auto 0;padding:.8rem 1rem;border-radius:6px;font-weight:600}
.flash-success{background:#0f2f1c;color:#8ef0b8;border:1px solid var(--good)}
.flash-error{background:#3a1618;color:#ffb3b8;border:1px solid var(--bad)}
.flash-info{background:#12233f;color:#bcd4ff;border:1px solid var(--accent)}

/* ---------- hero / home ---------- */
.hero{padding:4rem 1.5rem;text-align:center;background:var(--panel);border-bottom:1px solid var(--border)}
.hero h1{font-size:2.4rem;font-weight:800;margin-bottom:.5rem}
.hero h1 span{color:var(--accent)}
.hero p{color:var(--text-dim);font-size:1.1rem;margin-bottom:1.5rem}
.section{max-width:1200px;margin:3rem auto;padding:0 1.5rem}
.section h2{font-size:1.5rem;margin-bottom:1.5rem}

/* ---------- product grid / cards ---------- */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1.5rem}
.product-card{background:var(--card-bg);border:1px solid var(--border);border-radius:8px;padding:1rem;display:flex;flex-direction:column}
.product-card .thumb{width:100%;aspect-ratio:1;background:#272a33;border-radius:6px;display:flex;align-items:center;justify-content:center;
  color:var(--text-dim);font-size:.8rem;margin-bottom:.8rem;overflow:hidden;object-fit:cover}
.product-card h3{font-size:1rem;font-weight:600;margin-bottom:.25rem}
.product-card h3 a{text-decoration:none}
.product-card .meta{color:var(--text-dim);font-size:.8rem;margin-bottom:.5rem}
.product-card .price{color:var(--accent);font-size:1.2rem;font-weight:700;margin:.3rem 0 .8rem}
.product-card .price s{color:var(--text-dim);font-size:.9rem;font-weight:400;margin-left:.4rem}
.btn{background:var(--accent);color:#fff;font-weight:600;padding:.65rem 1rem;text-decoration:none;border:none;border-radius:6px;
  cursor:pointer;text-align:center;display:inline-block;font-size:.95rem}
.btn:hover{background:var(--accent-hover)}
.btn.block{width:100%}
.btn.ghost{background:transparent;border:1px solid var(--border);color:var(--text-main)}
.btn.danger{background:var(--bad)}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ---------- shop page ---------- */
.shop-wrap{display:grid;grid-template-columns:290px 1fr;gap:2rem;max-width:1400px;margin:2rem auto;padding:0 1.5rem;align-items:start}
.shop-sidebar{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:1rem;position:sticky;top:80px}
.shop-sidebar h2{font-size:1rem;text-transform:uppercase;margin-bottom:.75rem}
.cat-filter{width:100%;padding:.55rem .7rem;border-radius:6px;border:1px solid var(--border);background:var(--bg-main);color:var(--text-main);margin-bottom:.75rem}
.cat-tree{max-height:calc(100vh - 220px);overflow-y:auto;padding-right:.25rem}
.cat-tree::-webkit-scrollbar{width:6px}
.cat-tree::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
.dept{border:1px solid var(--border);border-radius:6px;margin-bottom:.4rem;overflow:hidden;background:var(--card-bg)}
.dept>summary{padding:.6rem .8rem;font-weight:700;cursor:pointer;list-style:none;font-size:.9rem}
.dept>summary::-webkit-details-marker{display:none}
.dept>summary::after{content:'+';float:right;color:var(--accent)}
.dept[open]>summary::after{content:'–'}
.cat{border-top:1px solid var(--border)}
.cat>summary{padding:.45rem .8rem .45rem 1.1rem;cursor:pointer;font-size:.85rem;list-style:none;color:var(--text-main)}
.cat>summary::-webkit-details-marker{display:none}
.cat>summary::after{content:'+';float:right;color:var(--text-dim)}
.cat[open]>summary::after{content:'–'}
.cat-links{padding:.25rem .8rem .5rem 1.5rem;display:flex;flex-direction:column}
.cat-links a{color:var(--text-dim);text-decoration:none;font-size:.8rem;padding:.15rem 0}
.cat-links a:hover,.cat-links a.active{color:var(--accent)}
.cat-links .grp{color:var(--accent);font-size:.72rem;text-transform:uppercase;font-weight:700;margin-top:.4rem}
.cat-tree .hit{outline:1px solid var(--accent)}
.cat-tree .dimmed{display:none}

.shop-main .shop-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-bottom:1.25rem}
.shop-main h1{font-size:1.6rem}
.shop-chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.25rem}
.chip{background:var(--card-bg);border:1px solid var(--border);border-radius:999px;padding:.35rem .8rem;font-size:.8rem;text-decoration:none;color:var(--text-dim)}
.chip:hover,.chip.active{color:#fff;border-color:var(--accent);background:var(--accent)}
.toolbar{display:flex;gap:.75rem;flex-wrap:wrap}
.toolbar select,.toolbar input{padding:.5rem .7rem;border-radius:6px;border:1px solid var(--border);background:var(--bg-main);color:var(--text-main)}
.pagination{display:flex;gap:.5rem;justify-content:center;margin:2rem 0;flex-wrap:wrap}
.pagination a,.pagination span{padding:.5rem .8rem;border:1px solid var(--border);border-radius:6px;text-decoration:none;font-size:.9rem}
.pagination .current{background:var(--accent);border-color:var(--accent)}
.empty{text-align:center;color:var(--text-dim);padding:4rem 1rem}

/* ---------- product detail ---------- */
.pd{max-width:1100px;margin:2rem auto;padding:0 1.5rem;display:grid;grid-template-columns:1fr 1fr;gap:2.5rem}
.pd-gallery .main-img{width:100%;aspect-ratio:1;background:#272a33;border-radius:10px;object-fit:cover;display:flex;align-items:center;justify-content:center;color:var(--text-dim)}
.pd-thumbs{display:flex;gap:.5rem;margin-top:.6rem;flex-wrap:wrap}
.pd-thumbs img{width:70px;height:70px;object-fit:cover;border-radius:6px;border:1px solid var(--border);cursor:pointer}
.pd h1{font-size:1.8rem;margin-bottom:.5rem}
.pd .price{font-size:1.8rem;color:var(--accent);font-weight:800;margin:.5rem 0}
.pd .tags{display:flex;gap:.5rem;flex-wrap:wrap;margin:.75rem 0}
.tag{background:var(--card-bg);border:1px solid var(--border);border-radius:6px;padding:.2rem .6rem;font-size:.78rem;color:var(--text-dim)}
.pd .desc{color:var(--text-dim);margin:1rem 0;white-space:pre-wrap}
.pd .buybox{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:1.25rem;margin-top:1rem}

/* ---------- cart / checkout ---------- */
.box{max-width:1000px;margin:2rem auto;padding:0 1.5rem}
.box h1{font-size:1.7rem;margin-bottom:1.25rem}
.cart-row{display:grid;grid-template-columns:80px 1fr auto auto;gap:1rem;align-items:center;padding:1rem 0;border-bottom:1px solid var(--border)}
.cart-row img,.cart-row .noimg{width:80px;height:80px;object-fit:cover;border-radius:6px;background:#272a33}
.summary{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:1.25rem;margin-top:1.5rem}
.summary .line{display:flex;justify-content:space-between;padding:.3rem 0}
.summary .total{font-size:1.2rem;font-weight:800;border-top:1px solid var(--border);margin-top:.5rem;padding-top:.5rem}
.co-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:2rem;align-items:start}
.field{margin-bottom:1rem}
.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.3rem}
.field input,.field select,.field textarea{width:100%;padding:.6rem .7rem;border-radius:6px;border:1px solid var(--border);background:var(--bg-main);color:var(--text-main)}
.radio-card{border:1px solid var(--border);border-radius:8px;padding:.9rem;margin-bottom:.6rem;cursor:pointer;display:flex;gap:.6rem;align-items:flex-start}
.radio-card.sel{border-color:var(--accent);background:#12233f}
.two{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
#sq-card{background:#fff;border-radius:6px;padding:.5rem;min-height:52px}
.err-text{color:#ffb3b8;font-size:.85rem;margin-top:.5rem;min-height:1.2em}
.card-line{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--border);border-radius:8px;padding:.8rem 1rem;margin-bottom:.6rem}

/* ---------- account ---------- */
.acct{max-width:1000px;margin:2rem auto;padding:0 1.5rem}
.acct-nav{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem;border-bottom:1px solid var(--border);padding-bottom:1rem}
.acct-nav a{text-decoration:none;color:var(--text-dim);font-weight:600}
.acct-nav a.active,.acct-nav a:hover{color:var(--accent)}
table.data{width:100%;border-collapse:collapse;font-size:.9rem}
table.data th,table.data td{text-align:left;padding:.6rem .5rem;border-bottom:1px solid var(--border)}
table.data th{color:var(--text-dim);font-size:.78rem;text-transform:uppercase}
.badge{display:inline-block;padding:.15rem .55rem;border-radius:999px;font-size:.72rem;font-weight:700}
.badge.paid,.badge.available,.badge.picked_up,.badge.shipped,.badge.completed{background:#0f2f1c;color:#8ef0b8}
.badge.pending,.badge.reserved,.badge.unfulfilled,.badge.ready_for_pickup{background:#3a2c12;color:#ffd591}
.badge.failed,.badge.canceled,.badge.refunded,.badge.archived{background:#3a1618;color:#ffb3b8}
.badge.hidden,.badge.draft{background:#23262e;color:var(--text-dim)}
.auth-card{max-width:420px;margin:3rem auto;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:2rem}
.auth-card h1{font-size:1.5rem;margin-bottom:1rem}

.page-content{max-width:900px;margin:3rem auto;padding:0 1.5rem}
.page-content h1{font-size:2rem;margin-bottom:1rem}
.page-content p,.page-content li{color:var(--text-dim);margin-bottom:.75rem}
.page-content h2{margin:1.5rem 0 .5rem}
.store-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:1.25rem;margin-bottom:1rem}

/* ---------- HELP BOT ---------- */
.helpbot{position:fixed;right:var(--fab-gap);bottom:var(--fab-gap);z-index:1000}
.helpbot-fab{width:var(--fab-size);height:var(--fab-size);border-radius:50%;border:none;cursor:pointer;
  background:var(--accent);color:#fff;box-shadow:0 6px 24px rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;
  transition:transform .15s,background .15s}
.helpbot-fab:hover{background:var(--accent-hover);transform:scale(1.06)}
.helpbot-fab-icon{font-size:1.8rem;font-weight:800;font-family:Georgia,'Times New Roman',serif;line-height:1}
.helpbot.open .helpbot-fab{transform:rotate(90deg)}
.helpbot-panel{position:absolute;right:0;bottom:calc(var(--fab-size) + 14px);width:min(360px,calc(100vw - 32px));
  height:min(520px,calc(100vh - 120px));background:var(--card-bg);border:1px solid var(--border);border-radius:14px;
  display:flex;flex-direction:column;overflow:hidden;box-shadow:0 12px 40px rgba(0,0,0,.5)}
.helpbot-panel[hidden]{display:none}
.helpbot-head{background:var(--panel);padding:.9rem 1rem;font-weight:700;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border)}
.helpbot-x{background:none;border:none;color:var(--text-dim);font-size:1.4rem;cursor:pointer;line-height:1}
.helpbot-log{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.6rem}
.hb-msg{max-width:85%;padding:.55rem .8rem;border-radius:12px;font-size:.9rem;white-space:pre-wrap}
.hb-msg.bot{background:var(--panel);align-self:flex-start;border-bottom-left-radius:3px}
.hb-msg.customer{background:var(--accent);color:#fff;align-self:flex-end;border-bottom-right-radius:3px}
.helpbot-chips{display:flex;flex-wrap:wrap;gap:.4rem;padding:0 1rem .5rem}
.helpbot-chips button{background:var(--panel);border:1px solid var(--border);color:var(--text-dim);border-radius:999px;
  padding:.3rem .7rem;font-size:.78rem;cursor:pointer}
.helpbot-chips button:hover{color:#fff;border-color:var(--accent)}
.helpbot-form{display:flex;gap:.5rem;padding:.75rem 1rem;border-top:1px solid var(--border)}
.helpbot-form input{flex:1;padding:.55rem .7rem;border-radius:8px;border:1px solid var(--border);background:var(--bg-main);color:var(--text-main)}
.helpbot-form button{background:var(--accent);border:none;color:#fff;border-radius:8px;padding:0 .9rem;cursor:pointer}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .shop-wrap{grid-template-columns:1fr}
  .shop-sidebar{position:static}
  .cat-tree{max-height:420px}
  .pd{grid-template-columns:1fr}
  .co-grid{grid-template-columns:1fr}
  .nav-toggle{display:block;order:3}
  .main-nav{display:none;width:100%;flex-direction:column;align-items:flex-start}
  body.nav-open .main-nav{display:flex}
}
@media(max-width:560px){
  :root{--fab-size:52px;--fab-gap:16px}
  .cart-row{grid-template-columns:60px 1fr;grid-auto-rows:auto}
}