:root{
  --bg:#f7f8fa;
  --surface:#ffffff;
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#64748b;
  --line:#e5e7eb;
  --line-2:#f1f5f9;
  --brand:#0f766e;
  --brand-ink:#134e4a;
  --accent:#dc2626;
  --ok:#16a34a;
  --warn:#f59e0b;
  --radius:6px;
  --radius-lg:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:'Peyda',system-ui,-apple-system,sans-serif;
  font-size:14px;line-height:1.6;color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer;border:0;background:transparent;color:inherit}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 20px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;color:var(--ink)}
.brand img{border-radius:6px}
.topnav{display:flex;align-items:center;gap:6px}
.nav-link{
  padding:8px 14px;border-radius:var(--radius);
  font-size:13px;font-weight:500;color:var(--ink-2);
  transition:background .15s;
}
.nav-link:hover{background:var(--line-2)}
.cart-btn{
  position:relative;padding:8px;border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;
  transition:background .15s;
}
.cart-btn:hover{background:var(--line-2)}
.cart-count{
  position:absolute;top:2px;right:2px;
  background:var(--brand);color:#fff;
  font-size:10px;font-weight:700;
  min-width:18px;height:18px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  padding:0 5px;
}
.cart-count[data-zero="1"]{opacity:0;pointer-events:none}

main{max-width:1200px;margin:0 auto;padding:24px 20px 80px}

/* Page title */
.page-title{
  font-size:22px;font-weight:700;margin-bottom:4px;letter-spacing:-.2px;
}
.page-sub{color:var(--muted);font-size:13px;margin-bottom:24px}

/* Category pills */
.cats{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px;padding-bottom:4px}
.cat-pill{
  padding:8px 16px;border:1px solid var(--line);
  border-radius:999px;background:var(--surface);
  font-size:13px;font-weight:500;color:var(--ink-2);
  transition:all .15s;white-space:nowrap;
}
.cat-pill:hover{border-color:var(--ink)}
.cat-pill.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* Product grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;
  transition:border-color .15s, transform .15s;
  cursor:pointer;
}
.card:hover{border-color:var(--ink-2)}
.card-img{
  aspect-ratio:1/1;background:var(--line-2);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);position:relative;
}
.card-img svg{width:48px;height:48px;opacity:.5}
.card-body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-cat{font-size:11px;color:var(--muted);font-weight:500;letter-spacing:.3px;text-transform:uppercase}
.card-name{font-size:14px;font-weight:600;line-height:1.4;color:var(--ink)}
.card-desc{font-size:12px;color:var(--muted);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  padding:12px 14px;border-top:1px solid var(--line-2);
  display:flex;justify-content:space-between;align-items:center;
}
.card-price{font-size:13px;font-weight:600;color:var(--brand-ink)}
.card-price small{color:var(--muted);font-weight:400;margin-right:4px;font-size:11px}
.card-action{
  font-size:12px;font-weight:500;color:var(--brand);
  display:flex;align-items:center;gap:4px;
}
.card-action svg{width:14px;height:14px}

/* Product detail */
.pd{display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media (max-width:768px){ .pd{grid-template-columns:1fr;gap:24px} }
.pd-img{
  aspect-ratio:1/1;background:var(--line-2);
  border-radius:var(--radius-lg);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);
}
.pd-img svg{width:80px;height:80px;opacity:.4}
.pd-crumb{font-size:12px;color:var(--muted);margin-bottom:8px}
.pd-crumb a:hover{color:var(--ink)}
.pd-name{font-size:24px;font-weight:700;margin-bottom:8px;letter-spacing:-.3px;line-height:1.3}
.pd-desc{color:var(--ink-2);font-size:13px;line-height:1.8;margin-bottom:24px}

/* Option group */
.opt-group{margin-bottom:22px}
.opt-label{font-size:12px;font-weight:600;color:var(--ink);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.opt-label .req{color:var(--accent);font-size:10px}
.opt-opts{display:flex;flex-wrap:wrap;gap:8px}
.opt-btn{
  padding:9px 14px;border:1px solid var(--line);
  border-radius:var(--radius);background:var(--surface);
  font-size:13px;font-weight:500;color:var(--ink-2);
  display:flex;align-items:center;gap:8px;
  transition:all .15s;
}
.opt-btn:hover{border-color:var(--ink-2)}
.opt-btn.selected{border-color:var(--brand);background:#f0fdfa;color:var(--brand-ink)}
.opt-btn .opt-add{font-size:11px;color:var(--muted);font-weight:400}
.opt-btn.selected .opt-add{color:var(--brand)}

/* Quantity */
.qty{display:flex;align-items:center;gap:2px;border:1px solid var(--line);border-radius:var(--radius);width:fit-content}
.qty button{width:36px;height:36px;display:flex;align-items:center;justify-content:center;color:var(--ink-2);font-size:16px}
.qty button:hover{background:var(--line-2)}
.qty input{
  width:48px;height:36px;border:0;text-align:center;
  font-size:14px;font-weight:600;color:var(--ink);
  background:transparent;font-family:inherit;
}
.qty input:focus{outline:0}

/* Price bar */
.price-bar{
  margin-top:28px;padding:20px;
  background:var(--line-2);border-radius:var(--radius-lg);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.price-bar-left{display:flex;flex-direction:column;gap:4px}
.price-lbl{font-size:11px;color:var(--muted);font-weight:500;letter-spacing:.3px;text-transform:uppercase}
.price-val{font-size:22px;font-weight:700;color:var(--ink);letter-spacing:-.3px}
.price-val small{font-size:13px;color:var(--muted);font-weight:400;margin-right:4px}
.price-val.loading{opacity:.4}
.add-btn{
  padding:12px 24px;background:var(--ink);color:#fff;
  border-radius:var(--radius);font-size:14px;font-weight:600;
  display:flex;align-items:center;gap:8px;
  transition:background .15s;
}
.add-btn:hover{background:var(--brand-ink)}
.add-btn:disabled{opacity:.5;cursor:not-allowed}
.add-btn svg{width:16px;height:16px}

/* Drawer */
.drawer-overlay{position:fixed;inset:0;background:rgba(15,23,42,.4);opacity:0;pointer-events:none;transition:opacity .25s;z-index:90}
.drawer-overlay.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:min(420px,100%);
  background:var(--surface);z-index:100;
  transform:translateX(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
}
.drawer.open{transform:none}
.drawer-head{padding:20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.drawer-head h2{font-size:16px;font-weight:700}
.drawer-close{padding:6px;border-radius:var(--radius);color:var(--muted)}
.drawer-close:hover{background:var(--line-2);color:var(--ink)}
.drawer-body{flex:1;overflow-y:auto;padding:20px}
.drawer-empty{text-align:center;padding:40px 20px;color:var(--muted)}
.drawer-empty svg{width:48px;height:48px;opacity:.4;margin:0 auto 16px}

/* Cart item */
.cart-item{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line-2)}
.cart-item:last-child{border:0}
.ci-thumb{width:64px;height:64px;background:var(--line-2);border-radius:var(--radius);flex:none;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.ci-thumb svg{width:28px;height:28px;opacity:.5}
.ci-main{flex:1;min-width:0}
.ci-name{font-size:13px;font-weight:600;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ci-opts{font-size:11px;color:var(--muted);margin-bottom:6px;line-height:1.4}
.ci-foot{display:flex;justify-content:space-between;align-items:center;gap:8px}
.ci-qty{display:flex;align-items:center;gap:1px;border:1px solid var(--line);border-radius:var(--radius)}
.ci-qty button{width:24px;height:24px;font-size:12px;color:var(--ink-2)}
.ci-qty span{width:28px;text-align:center;font-size:12px;font-weight:600}
.ci-price{font-size:13px;font-weight:600;color:var(--brand-ink)}
.ci-remove{color:var(--muted);padding:4px;border-radius:4px}
.ci-remove:hover{color:var(--accent);background:#fef2f2}

.drawer-foot{padding:20px;border-top:1px solid var(--line)}
.total-row{display:flex;justify-content:space-between;margin-bottom:12px;font-size:13px}
.total-row.main{font-size:16px;font-weight:700;padding-top:12px;border-top:1px solid var(--line-2)}
.checkout-btn{
  width:100%;padding:14px;background:var(--ink);color:#fff;
  border-radius:var(--radius);font-size:14px;font-weight:600;
  display:flex;align-items:center;justify-content:center;gap:8px;
  transition:background .15s;
}
.checkout-btn:hover{background:var(--brand-ink)}
.checkout-btn:disabled{opacity:.5;cursor:not-allowed}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px;opacity:0;pointer-events:none;transition:opacity .2s}
.modal-overlay.open{opacity:1;pointer-events:auto}
.modal{background:var(--surface);border-radius:var(--radius-lg);max-width:420px;width:100%;padding:24px;transform:scale(.96);transition:transform .2s}
.modal-overlay.open .modal{transform:scale(1)}
.modal h3{font-size:17px;font-weight:700;margin-bottom:6px}
.modal .sub{font-size:13px;color:var(--muted);margin-bottom:20px;line-height:1.6}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:12px;font-weight:600;margin-bottom:6px;color:var(--ink-2)}
.form-field input{
  width:100%;padding:11px 14px;border:1px solid var(--line);
  border-radius:var(--radius);font-size:14px;font-family:inherit;
  color:var(--ink);transition:border-color .15s;
}
.form-field input:focus{outline:0;border-color:var(--ink)}
.form-field input:disabled{background:var(--line-2);color:var(--muted)}
.otp-row{display:flex;gap:8px;align-items:center}
.otp-row input{flex:1;letter-spacing:6px;text-align:center;font-weight:700;font-size:18px}
.otp-timer{font-size:12px;color:var(--muted);white-space:nowrap}
.otp-resend{color:var(--brand);font-size:12px;font-weight:500;background:none;border:0;padding:0}
.btn-primary{
  width:100%;padding:12px;background:var(--ink);color:#fff;
  border-radius:var(--radius);font-size:14px;font-weight:600;
  transition:background .15s;
}
.btn-primary:hover{background:var(--brand-ink)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed}
.btn-ghost{
  width:100%;padding:10px;background:transparent;color:var(--ink-2);
  border-radius:var(--radius);font-size:13px;font-weight:500;
  margin-top:8px;
}
.btn-ghost:hover{background:var(--line-2)}

/* Success */
.success{text-align:center;padding:8px 0}
.success-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:#f0fdf9;color:var(--ok);display:flex;align-items:center;justify-content:center}
.success-icon svg{width:32px;height:32px}
.success h3{font-size:18px;margin-bottom:8px}
.success .sub{margin-bottom:24px}
.order-nums{background:var(--line-2);border-radius:var(--radius);padding:14px;text-align:right;font-size:12px;color:var(--ink-2);margin-bottom:20px}
.order-nums b{color:var(--ink);font-weight:600}
.order-num{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--line)}
.order-num:last-child{border:0}

/* Toast */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translate(-50%,16px);
  background:var(--ink);color:#fff;padding:10px 20px;
  border-radius:var(--radius);font-size:13px;font-weight:500;
  opacity:0;pointer-events:none;transition:all .25s;z-index:300;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* Loading / empty */
.skeleton{background:linear-gradient(90deg,var(--line-2) 0%,#e8ecf1 50%,var(--line-2) 100%);background-size:200% 100%;animation:sh 1.4s ease-in-out infinite;border-radius:var(--radius)}
@keyframes sh{0%{background-position:200% 0}100%{background-position:-200% 0}}
.empty{text-align:center;padding:60px 20px;color:var(--muted)}
.empty svg{width:56px;height:56px;opacity:.4;margin:0 auto 16px}
.empty h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:6px}
.empty p{font-size:13px}

/* Utility */
.hide{display:none!important}
.num{font-variant-numeric:tabular-nums}
[dir="ltr"]{direction:ltr;display:inline-block}

@media (max-width:640px){
  .topbar{padding:10px 14px}
  .m-hide{display:none}
  main{padding:16px 14px 80px}
  .page-title{font-size:19px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .card-body{padding:10px}
  .card-name{font-size:13px}
  .pd-name{font-size:20px}
  .price-bar{padding:16px}
  .price-val{font-size:18px}
  .drawer{width:100%}
}

/* == fix: cart remove button visible == */
.ci-remove{
  display:flex; align-items:center; justify-content:center;
  width:32px; height:32px; flex:none;
  color:var(--muted); border-radius:6px;
  transition:all .15s;
}
.ci-remove svg{width:16px; height:16px; display:block}
.ci-remove:hover{color:var(--accent); background:#fef2f2}
.ci-remove:active{transform:scale(.9)}

/* == product images == */
.card-img img, .pd-img img{width:100%; height:100%; object-fit:cover}

/* == order tracking == */
.track-box{max-width:440px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px}
.track-err{margin-top:16px;padding:12px;background:#fef2f2;color:var(--accent);border-radius:var(--radius);font-size:13px;text-align:center}
.track-card{margin-top:24px;border-top:1px solid var(--line-2);padding-top:16px}
.tc-row{display:flex;justify-content:space-between;font-size:13px;padding:6px 0;color:var(--muted)}
.tc-row b{color:var(--ink);font-weight:600}
.stepper{display:flex;margin:28px 0 8px}
.step{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px;position:relative}
.step .dot{width:30px;height:30px;border-radius:50%;border:2px solid var(--line);background:var(--surface);color:var(--muted);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;position:relative;z-index:1}
.step .lbl{font-size:10px;color:var(--muted);text-align:center}
.step:not(:last)::after{content:'';position:absolute;top:15px;left:-50%;width:100%;height:2px;background:var(--line)}
.step.on .dot{background:var(--brand);border-color:var(--brand);color:#fff}
.step.on .lbl{color:var(--ink);font-weight:600}
.step.on:not(:last)::after{background:var(--brand)}
.seo-footer{margin-top:64px;background:#0f172a;color:#cbd5e1;padding:32px 0;font-size:13px}
.seo-footer .wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.seo-footer strong{color:#fff;font-size:15px}
.seo-footer p{margin-top:8px;line-height:2}

/* == gallery + file box == */
.pd-thumbs{display:flex;gap:8px;margin-top:10px}
.pd-th{width:56px;height:56px;border-radius:8px;overflow:hidden;border:2px solid transparent;padding:0;cursor:pointer}
.pd-th.on{border-color:var(--brand)}
.pd-th img{width:100%;height:100%;object-fit:cover}
.file-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;margin:20px 0}
.fb-title{font-weight:700;font-size:14px;margin-bottom:10px}
.fb-guide{font-size:12px;color:var(--muted);line-height:2;background:#f8fafc;border-radius:8px;padding:10px;white-space:pre-line}
.fb-tpl{display:inline-block;margin-top:8px;font-size:12px;color:var(--brand);font-weight:600}
.fb-samples span{font-size:12px;color:var(--muted)}
.fb-srow{display:flex;gap:8px;margin-top:6px}
.fb-sample{width:64px;height:64px;border-radius:8px;overflow:hidden;border:2px solid transparent;padding:0;cursor:pointer}
.fb-sample.sel{border-color:var(--brand)}
.fb-sample img{width:100%;height:100%;object-fit:cover}
.fb-modes{display:flex;gap:10px;margin:14px 0}
.fb-mode{font-size:12px;border:1px solid var(--line);border-radius:8px;padding:8px 12px;cursor:pointer;display:flex;gap:6px;align-items:center}
.fb-mode.on{border-color:var(--brand);background:#f0fdfa;color:var(--brand);font-weight:600}
.fb-upload{display:block;border:2px dashed var(--line);border-radius:10px;padding:14px;text-align:center;font-size:12px;color:var(--muted);cursor:pointer}
.fb-upload:hover{border-color:var(--brand);color:var(--brand)}
.fb-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.chip{font-size:11px;background:#f1f5f9;border-radius:6px;padding:4px 8px;direction:ltr}
#fbNotes{width:100%;min-height:70px;border:1px solid var(--line);border-radius:8px;padding:10px;font-size:12px;margin-bottom:10px;font-family:inherit}

/* == product layout v2 == */
.pd-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}
@media(max-width:900px){.pd-layout{grid-template-columns:1fr}}
.pd-side{display:flex;flex-direction:column;gap:14px;position:sticky;top:80px}
@media(max-width:900px){.pd-side{position:static}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:16px}
.side-title{font-weight:700;font-size:13px;margin-bottom:8px}
.side-card p{font-size:12px;color:var(--muted);line-height:2;white-space:pre-line}
.fb-samples.auto{margin-top:18px}
.fb-srow .fb-sample{width:84px;height:84px;position:relative}
.fb-srow .fb-sample .sn{position:absolute;bottom:0;right:0;left:0;background:rgba(15,23,42,.72);color:#fff;font-size:9px;padding:2px 4px;text-align:center}
.file-box.mode-design{border-color:#8b5cf6}
.file-box.mode-design .fb-title{color:#8b5cf6}
.file-box.mode-ready{border-color:var(--brand)}
.fb-hint{font-size:11px;color:var(--muted);margin-top:6px}

/* == v3: dropzones + similar + thumbs top == */
.pd-thumbs{margin:0 0 10px}
.drop-zone{border:2px dashed var(--line);border-radius:12px;padding:14px;text-align:center;cursor:pointer;background:#fafafa;transition:.2s;margin-bottom:10px}
.drop-zone:hover,.drop-zone.drag{border-color:var(--brand);background:#f0fdfa}
.dz-icon{font-size:20px}
.dz-label{font-size:12px;font-weight:700;margin:4px 0 2px}
.dz-hint{font-size:10px;color:var(--muted)}
.similar-sec{margin:30px 0 10px}
.similar-sec h3{font-size:15px;font-weight:800;margin-bottom:14px}
.sim-row{display:flex;gap:14px;overflow-x:auto;padding-bottom:6px}
.sim-card{min-width:160px;max-width:160px;background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;cursor:pointer;text-align:center}
.sim-card img{width:100%;height:110px;object-fit:cover}
.sim-card .sn2{font-size:11px;font-weight:700;padding:8px 6px 2px}
.sim-card .sp{font-size:10px;color:var(--muted);padding:0 6px 8px}
.sim-card .refbtn{font-size:10px;color:var(--brand);background:#f0fdfa;border:none;border-top:1px solid var(--line);width:100%;padding:6px 0;cursor:pointer}