/* ===== Cửa hàng (README §4) ===== */
.hw-shop-banner{background:var(--soft);padding:clamp(40px,5vw,80px) 0 clamp(32px,4vw,56px)}
.hw-shop-banner .hw-h1{color:var(--ink);font-size:clamp(30px,3.4vw,56px);letter-spacing:.04em}
.hw-shop-banner .hw-crumb{margin:0 0 14px;color:var(--steel)}
.hw-shop-banner .hw-crumb a{color:var(--steel)}
.hw-shop-banner .hw-crumb a:hover{color:var(--ink)}
.hw-shop-banner--brand{background:var(--ink);color:#E4E6E8;text-align:center}
.hw-shop-banner--brand .hw-h1{color:#fff}
.hw-shop-banner__logo{display:block;max-height:64px;max-width:min(220px,70vw);width:auto!important;height:auto!important;margin:0 auto 22px;object-fit:contain;filter:brightness(0) invert(1)}
.hw-shop-banner__desc{max-width:760px;margin:0 auto;font-size:15px;line-height:1.75;color:#C9CDD1}
.hw-shop-banner__desc p{margin:0 0 .6em}

.hw-shop__body{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(28px,3.5vw,64px);padding-top:clamp(32px,4vw,56px);padding-bottom:clamp(64px,7vw,120px);align-items:start}
.hw-shop__ftoggle{display:none}
.hw-filters{position:sticky;top:84px;max-height:calc(100vh - 100px);overflow-y:auto;scrollbar-width:thin}
.hw-filters__head{display:none}
.hw-fgroup{border-top:1px solid var(--line2);padding:18px 0 14px}
.hw-fgroup:first-child{border-top:0;padding-top:0}
.hw-fgroup__t{font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);margin-bottom:12px}
.hw-fgroup__list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.hw-fgroup__list--scroll{max-height:290px;overflow-y:auto;padding-right:6px;scrollbar-width:thin}
.hw-fopt{display:flex;align-items:center;gap:10px;padding:6px 0;font-size:14px;color:var(--text2);text-decoration:none!important}
.hw-fopt:hover{color:var(--ink)}
.hw-fopt__box{flex:0 0 14px;width:14px;height:14px;border:1px solid var(--line);background:#fff;position:relative}
.hw-fopt.is-on{color:var(--ink);font-weight:500}
.hw-fopt.is-on .hw-fopt__box{background:var(--ink);border-color:var(--ink)}
.hw-fopt.is-on .hw-fopt__box::after{content:"";position:absolute;left:4px;top:1px;width:4px;height:8px;border:solid #fff;border-width:0 1.5px 1.5px 0;transform:rotate(45deg)}
.hw-fopt__l{flex:1}
.hw-fopt__n{font-size:12px;color:var(--steel)}

.hw-shop__bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line2);margin-bottom:18px}
.hw-shop__count{font-size:13px;color:var(--steel);letter-spacing:.04em}
.hw-sort select{height:40px;border:1px solid var(--line);background:#fff;padding:0 34px 0 14px;font-size:13px;color:var(--ink);border-radius:0;appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);background-position:calc(100% - 17px) 17px,calc(100% - 12px) 17px;background-size:5px 5px;background-repeat:no-repeat;cursor:pointer}
.hw-chips{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.hw-chip{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 12px;border:1px solid var(--line);font-size:13px;color:var(--ink);text-decoration:none!important}
.hw-chip span{font-size:16px;line-height:1;color:var(--steel)}
.hw-chip:hover{border-color:var(--ink)}
.hw-chips__clear{font-size:13px;color:var(--steel);margin-left:6px}
.hw-chips__clear:hover{color:var(--ink)}

.hw-sgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(28px,3vw,48px) clamp(16px,2vw,28px)}
.hw-sc{position:relative}
.hw-sc__media{position:relative;aspect-ratio:1/1;background:#F7F7F8;overflow:hidden}
.hw-sc__img{display:block;width:100%;height:100%}
.hw-sc__img img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.hw-sc:hover .hw-sc__img img{transform:scale(1.06)}
.hw-sc__tag{position:absolute;top:0;left:0;z-index:2;background:var(--ink);color:#fff;font-size:11px;font-weight:600;letter-spacing:.06em;padding:4px 8px}
.hw-cmp-btn{position:absolute;top:10px;right:10px;width:34px;height:34px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:15px;line-height:1;cursor:pointer;opacity:0;transition:opacity .25s,background .2s,color .2s}
.hw-sc:hover .hw-cmp-btn,.hw-cmp-btn.is-on,.hw-cmp-btn:focus-visible{opacity:1}
.hw-cmp-btn.is-on{background:var(--ink);color:#fff;border-color:var(--ink)}
.hw-sc__add{position:absolute;left:0;right:0;bottom:0;height:46px;display:flex;align-items:center;justify-content:center;background:var(--ink);color:#fff!important;font-size:12px;font-weight:600;letter-spacing:.14em;text-decoration:none!important;transform:translateY(100%);transition:transform .35s cubic-bezier(.2,.7,.2,1),background .2s}
.hw-sc:hover .hw-sc__add,.hw-sc__add:focus-visible{transform:none}
.hw-sc__add:hover{background:var(--footer)}
.hw-sc__add.loading{opacity:.7}
.hw-sc__add.added::after{content:" ✓"}
.hw-sc .added_to_cart{display:none}
.hw-sc__name{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3.2em;margin-top:16px;font-size:15px;line-height:1.6;color:var(--ink);text-decoration:none!important}
.hw-sc__price{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-top:8px}
.hw-sc__now{font-size:16px;font-weight:600;color:var(--ink)}
.hw-sc__old{font-size:13px;color:var(--steel)}
.hw-more{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:clamp(40px,5vw,64px)}
.hw-more .hw-btn{min-width:240px}
.hw-more__n{font-size:12px;color:var(--steel);letter-spacing:.06em}
.hw-more.is-loading .hw-btn{opacity:.5;pointer-events:none}
.hw-empty{padding:60px 0;text-align:center;color:var(--text2)}

/* ===== So sánh (README §6) ===== */
.hw-cmp-tray{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);z-index:70;width:min(760px,calc(100% - 24px));background:#fff;border:1px solid var(--line);box-shadow:0 10px 40px rgba(26,28,30,.14);display:flex;align-items:center;gap:16px;padding:12px}
.hw-cmp-tray[hidden]{display:none}
.hw-cmp-tray__slots{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:10px;min-width:0}
.hw-cmp-slot{display:flex;align-items:center;gap:10px;min-width:0;height:56px;border:1px dashed var(--line);padding:4px 8px;font-size:12px;color:var(--steel)}
.hw-cmp-slot.is-full{border-style:solid;color:var(--ink)}
.hw-cmp-slot img{width:46px;height:46px;object-fit:contain;background:#F7F7F8;flex:0 0 46px}
.hw-cmp-slot span{flex:1;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.4}
.hw-cmp-slot button{border:0;background:none;font-size:18px;color:var(--steel);cursor:pointer;padding:0 4px}
.hw-cmp-tray__act{display:flex;flex-direction:column;align-items:center;gap:6px}
.hw-cmp-tray__act .hw-btn{min-height:44px;padding:0 20px}
.hw-btn[disabled]{opacity:.35;pointer-events:none}
.hw-cmp-tray__clear{border:0;background:none;font-size:12px;color:var(--steel);cursor:pointer}
.hw-modal{position:fixed;inset:0;z-index:90;background:rgba(14,15,16,.62);display:flex;align-items:center;justify-content:center;padding:16px}
.hw-modal[hidden]{display:none}
.hw-modal__box{position:relative;background:#fff;width:100%;max-width:760px;max-height:calc(100vh - 32px);overflow:auto;padding:clamp(24px,4vw,48px)}
.hw-modal__box--wide{max-width:980px}
.hw-modal__x{position:absolute;top:10px;right:14px;border:0;background:none;font-size:28px;line-height:1;color:var(--ink);cursor:pointer}
.hw-cmp__head{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.hw-cmp__head .hw-h2{margin:0;font-family:var(--serif);font-size:var(--h2);text-transform:uppercase;letter-spacing:.04em}
.hw-switch{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text2);cursor:pointer}
.hw-switch input{accent-color:var(--ink)}
.hw-cmp-t{width:100%;border-collapse:collapse;font-size:14px}
.hw-cmp-t th,.hw-cmp-t td{border-bottom:1px solid var(--line2);padding:12px 10px;text-align:left;vertical-align:top}
.hw-cmp-t th{width:24%;font-weight:500;color:var(--steel);font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.hw-cmp-t thead td{border-bottom:0}
.hw-cmp-t thead img{width:140px;aspect-ratio:1;object-fit:contain;background:#F7F7F8;margin-bottom:10px}
.hw-cmp-t thead a{font-weight:500;color:var(--ink);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.hw-better{display:inline-block;margin-left:8px;font-size:10px;font-weight:600;letter-spacing:.1em;color:#fff;background:var(--ink);padding:2px 6px;vertical-align:middle}
.hw-cmp-t tr.is-same{display:none}
.hw-cmp-t.show-all tr.is-same{display:table-row}

@media (max-width:960px){
  .hw-shop__body{grid-template-columns:1fr}
  .hw-shop__ftoggle{display:flex;align-items:center;justify-content:center;height:46px;border:1px solid var(--ink);background:#fff;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--ink);cursor:pointer}
  .hw-filters{position:fixed;inset:0 auto 0 0;top:0;width:min(340px,88vw);max-height:none;height:100%;background:#fff;z-index:80;padding:20px;transform:translateX(-100%);transition:transform .35s ease-out;box-shadow:0 0 0 100vmax rgba(14,15,16,0);}
  .hw-filters.is-open{transform:none;box-shadow:0 0 0 100vmax rgba(14,15,16,.5)}
  .hw-filters__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-size:13px;letter-spacing:.14em}
  .hw-filters__x{border:0;background:none;font-size:28px;line-height:1;cursor:pointer}
  .hw-sgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 12px}
  .hw-sc__add{transform:none;height:38px;font-size:11px;letter-spacing:.1em}
  .hw-cmp-btn{opacity:1;width:30px;height:30px}
  .hw-sc__name{font-size:14px}
  .hw-cmp-tray{flex-direction:column;align-items:stretch;gap:10px}
  .hw-cmp-tray__act{flex-direction:row;justify-content:space-between}
  .hw-cmp-t thead img{width:90px}
  .hw-cmp-t th{width:30%}
}
@media (prefers-reduced-motion:reduce){.hw-sc__img img,.hw-sc__add,.hw-filters{transition:none}}

/* brand bst */
.hw-bst{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin-top:24px}
.hw-bst__t{width:100%;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--steel);margin-bottom:4px}
.hw-bst a{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 16px;border:1px solid var(--line);font-size:13px;color:var(--ink)}
.hw-bst a:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.hw-bst small{font-size:11px;color:var(--steel)}
.hw-bst a:hover small{color:#ccc}



/* ===== Cửa hàng v2 (13/10): lưới 4×5, cột lọc chọn nhiều + Áp dụng, CTA quiz ===== */
.hw-sgrid{grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(24px,2.6vw,40px) clamp(14px,1.6vw,22px)}
@media (max-width:1180px){.hw-sgrid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:960px){.hw-sgrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 14px}}
@media (max-width:640px){.hw-sgrid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 12px}}
.hw-sc__name{font-size:14px}
/* Cột lọc: cuộn riêng phần nhóm, chừa khe cho thanh cuộn, nút Áp dụng dính đáy */
.hw-filters{display:flex;flex-direction:column;overflow:hidden;max-height:calc(100vh - 100px)}
.hw-filters__scroll{flex:1 1 auto;min-height:0;overflow-y:auto;padding-right:14px;scrollbar-width:thin;scrollbar-gutter:stable;scrollbar-color:var(--line) transparent}
.hw-filters__scroll::-webkit-scrollbar{width:6px}.hw-filters__scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}
.hw-fopt__n{min-width:2.2em;text-align:right;font-variant-numeric:tabular-nums}
.hw-filters__foot{flex:0 0 auto;display:flex;align-items:center;gap:12px;padding:14px 0 4px;border-top:1px solid var(--line2);background:#fff}
.hw-filters__apply{flex:1;min-height:44px;padding:0 14px;font-size:12px;letter-spacing:.12em}
.hw-filters__clear{font-size:13px;color:var(--steel);white-space:nowrap}
.hw-filters__clear:hover{color:var(--ink)}
.hw-filters.is-dirty .hw-filters__apply{box-shadow:0 0 0 2px var(--gold,#C9A24B)}
/* Thẻ CTA đầu cột lọc */
.hw-fcta{flex:0 0 auto;display:block;width:100%;text-align:left;border:0;cursor:pointer;background:var(--ink);color:#fff;padding:14px 16px;margin:0 0 20px;font:inherit}
.hw-fcta__k{display:block;font-size:10px;font-weight:600;letter-spacing:.18em;color:var(--gold,#C9A24B);margin-bottom:6px}
.hw-fcta__t{display:block;font-size:14px;line-height:1.45;color:#F3E3B5}
.hw-fcta:hover .hw-fcta__t{color:#fff}
/* Ô CTA chèn trong lưới (ô thứ 9) */
.hw-sc--cta{display:flex}
.hw-sccta{flex:1;display:flex;flex-direction:column;justify-content:center;gap:10px;aspect-ratio:1/1;width:100%;border:0;cursor:pointer;text-align:left;padding:clamp(16px,2vw,28px);background:var(--ink);color:#fff;font:inherit;transition:background .25s}
.hw-sccta:hover{background:var(--footer,#222)}
.hw-sccta__k{font-size:10px;font-weight:600;letter-spacing:.18em;color:var(--gold,#C9A24B)}
.hw-sccta__t{font-family:var(--serif);font-size:clamp(18px,1.7vw,24px);line-height:1.25;color:#F3E3B5}
.hw-sccta__d{font-size:13px;line-height:1.55;color:#C9CDD1}
.hw-sccta__b{margin-top:4px;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--gold,#C9A24B)}
@media (max-width:640px){.hw-sccta__d{display:none}.hw-sccta{gap:8px;padding:14px}}
/* Đang tải AJAX */
#hwMain{transition:opacity .2s}
#hwMain.is-busy{opacity:.45;pointer-events:none}
@media (max-width:960px){
  .hw-filters{display:flex;max-height:none;padding:20px 20px 0}
  .hw-fcta{display:none}
  .hw-filters__scroll{padding-right:8px}
  .hw-filters__foot{padding:12px 0 calc(12px + env(safe-area-inset-bottom))}
}