/* v2-category.css - CSS rieng cho trang DANH MUC san pham (v2).
   Trich tu layout-v2/nuochoaoto-danh-muc.html, chi giu nhung quy tac CHUA co
   trong v2-base.css de khong lap lai. Nap sau v2-base.css.
   Cac bien mau (--navy, --gold...) dung chung tu v2-base.css. */

.promo .hl{color:var(--gold-2)}
.promo .countdown{display:flex;align-items:center;gap:4px;white-space:nowrap;font-size:12px;color:#D6E0EF}
/* ---------- breadcrumb ---------- */
.crumb{padding:12px 0 6px;font-size:12.5px;color:var(--ink-3)}
.crumb b{color:var(--ink);font-weight:600}
.crumb .n{color:var(--red);font-weight:700}
.seen-card .thumb{width:44px;height:52px;border-radius:7px;background:var(--chip);display:grid;place-items:center;flex:0 0 auto}
.seen-card .nm{font-size:12.5px;line-height:1.35;font-weight:500}
.seen-card .pr{color:var(--red);font-weight:700;font-size:13px;margin-top:3px}
/* ---------- 5. BANNERS ---------- */
.banners{display:grid;grid-template-columns:1.05fr 1fr;gap:12px;margin-bottom:12px}
.bn{border-radius:var(--r);padding:20px 22px;color:#fff;position:relative;overflow:hidden;min-height:168px;display:flex;flex-direction:column;justify-content:center}
.bn-a{background:radial-gradient(120% 140% at 88% 12%, #2F5EA8 0%, var(--navy) 55%, var(--navy-2) 100%)}
.bn-b{background:linear-gradient(120deg,#FFE7AE,#F2A81D 60%,#DE8C0A);color:var(--navy-2)}
.bn .eyebrow{font-size:12px;font-weight:600;opacity:.9}
.bn h3{margin:4px 0 6px;font-size:23px;font-weight:800;line-height:1.15;letter-spacing:-.3px}
.bn .big{font-size:38px;font-weight:800;color:var(--gold-2);line-height:1;letter-spacing:-1px}
.bn-b .big{color:var(--navy-2)}
.bn .sub{font-size:12.5px;opacity:.92;margin-top:8px;max-width:30ch}
.bn .bbtn{align-self:flex-start;margin-top:12px;background:var(--gold);color:var(--navy-2);font-weight:700;font-size:13px;border-radius:999px;padding:9px 18px}
.bn-b .bbtn{background:var(--navy);color:#fff}
.bn .deco{position:absolute;right:-30px;bottom:-40px;opacity:.5}
.bn-b .deco{opacity:.35}
/* ---------- 6. FILTER + SORT ---------- */
.filterbar{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.btn-filter{display:flex;align-items:center;gap:7px;border:1px solid var(--navy);color:var(--navy);background:var(--card);font-weight:600;border-radius:var(--r-sm);padding:7px 14px;font-size:13px}
:root[data-theme="dark"] .btn-filter,@media(prefers-color-scheme:dark){.btn-filter{color:var(--gold-2);border-color:var(--gold-2)}}
.chips{display:flex;gap:8px;padding:2px 0 4px}
.chip{border:1px solid var(--line);background:var(--card);border-radius:var(--r-sm);padding:7px 13px;font-size:12.5px;white-space:nowrap;color:var(--ink-2)}
.chip:hover{border-color:var(--gold)}
.chip.on{border-color:var(--navy);background:var(--navy);color:#fff;font-weight:600}
.sortbar{display:flex;align-items:center;gap:6px;margin:4px 0 12px;font-size:13px;color:var(--ink-3)}
.sort{padding:6px 12px;border-radius:999px;white-space:nowrap;color:var(--ink-2)}
.sort.on{background:var(--gold-tint);color:var(--navy);font-weight:700}
:root[data-theme="dark"] .sort.on{color:var(--gold-2)}
.count-note{margin-left:auto;font-size:12.5px;color:var(--ink-3);white-space:nowrap}
.ribbon{font-size:10.5px;color:var(--ink-3);height:16px;line-height:16px;margin-bottom:2px;overflow:hidden;white-space:nowrap}
.ribbon.new{color:var(--red);font-weight:700}
:root[data-theme="dark"] .vr.on{color:var(--gold-2);border-color:var(--gold-2)}
.empty{grid-column:1/-1;text-align:center;padding:44px 16px;color:var(--ink-2)}
.empty b{display:block;font-size:15px;color:var(--ink);margin-bottom:6px}
.empty button{margin-top:12px;background:var(--gold);color:var(--navy-2);font-weight:700;border-radius:8px;padding:9px 18px}
.trust .t{display:flex;gap:10px;align-items:flex-start}
.trust .ic{width:36px;height:36px;border-radius:9px;background:var(--gold-tint);display:grid;place-items:center;flex:0 0 auto;color:var(--navy)}
:root[data-theme="dark"] .trust .ic{color:var(--gold-2)}
/* ---------- 9. SURVEY ---------- */
.survey{border:1px solid var(--gold);background:var(--gold-tint);border-radius:var(--r);padding:14px 18px;display:flex;align-items:center;gap:18px;justify-content:center;margin:16px auto;max-width:640px;flex-wrap:wrap}
.survey p{margin:0;font-size:13px;max-width:34ch;color:var(--ink)}
.survey button{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11.5px;color:var(--ink-2)}
.survey button span{font-size:22px}
/* ---------- 9b. CẨM NANG CHỌN MUA (long-form) ---------- */
.guide-card{background:var(--card);border-radius:14px;box-shadow:var(--shadow);padding:28px 30px;margin-bottom:12px}
.guide-card > h2{margin:0;font-size:26px;font-weight:800;letter-spacing:-.7px;line-height:1.25}
.guide-rule{width:54px;height:3px;border-radius:99px;background:var(--gold);margin:14px 0 22px}
.gbody{position:relative;max-height:430px;overflow:hidden}
.gbody.open{max-height:none}
.gbody .fade{position:absolute;left:0;right:0;bottom:0;height:110px;background:linear-gradient(transparent,var(--card));pointer-events:none}
.gbody.open .fade{display:none}
.gbody p{font-size:13.5px;line-height:1.8;color:var(--ink-2);max-width:78ch;margin:0 0 16px}
.gbody p b,.gbody li b{color:var(--ink)}
.gsub{border-left:3px solid var(--gold);padding:2px 0 2px 13px;margin:26px 0 12px;font-size:14.5px;font-weight:700;line-height:1.4}
.gbody ul{list-style:none;margin:0 0 16px;padding:0}
.gbody ul li{position:relative;padding:0 0 11px 20px;font-size:13.5px;line-height:1.75;color:var(--ink-2);max-width:78ch}
.gbody ul li::before{content:"";position:absolute;left:3px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--gold)}
.gbody ul ul{margin:9px 0 0;padding-left:20px}
.gbody ul ul li{padding-bottom:9px;font-size:13px}
.gbody ul ul li::before{width:5px;height:5px;background:var(--gold-2)}
.gbody .note{background:var(--gold-tint);border-radius:10px;padding:13px 16px;font-size:13px;color:var(--ink-2);line-height:1.7;max-width:78ch;margin:0 0 16px}
:root[data-theme="dark"] .gbody .note{color:var(--ink-2)}
.gbody table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:13px}
.gbody th,.gbody td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}
.gbody th{background:var(--chip);font-weight:700;font-size:12.5px}
.gtoggle{display:block;margin:22px auto 0;border:1.5px solid var(--gold);color:var(--ink);background:var(--card);font-weight:700;font-size:13px;border-radius:999px;padding:11px 24px}
.gtoggle:hover{background:var(--gold-tint)}
.gcta{margin-top:24px;background:var(--gold-tint);border:1px solid var(--gold);border-radius:12px;padding:18px 22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.gcta b{display:block;font-size:15px;margin-bottom:4px}
.gcta p{margin:0;font-size:12.5px;color:var(--ink-2);line-height:1.6;max-width:46ch}
.gcta .btn{margin-left:auto;background:var(--navy-2);color:#fff;font-weight:700;font-size:13px;border-radius:9px;padding:12px 22px;white-space:nowrap}
:root[data-theme="dark"] .gcta .btn{background:var(--gold);color:var(--navy-2)}
/* ---------- 10. SEO + FAQ ---------- */
.seo{position:relative}
.seo h2{text-align:center;font-size:14px;letter-spacing:.4px;color:var(--navy);border:1px solid var(--navy);border-radius:999px;display:inline-block;padding:8px 22px;margin:0 auto 14px;font-weight:700}
:root[data-theme="dark"] .seo h2{color:var(--gold-2);border-color:var(--gold-2)}
.seo .center{text-align:center}
.seo-body{max-height:112px;overflow:hidden;position:relative;color:var(--ink-2);font-size:13px;line-height:1.75}
.seo-body.open{max-height:none}
.seo-body p{margin:0 0 10px;max-width:78ch}
.seo-body h3{font-size:14px;color:var(--ink);margin:14px 0 6px}
.seo-body a{color:var(--navy);font-weight:600}
:root[data-theme="dark"] .seo-body a{color:var(--gold-2)}
.fade{position:absolute;left:0;right:0;bottom:0;height:56px;background:linear-gradient(transparent,var(--card))}
.seo-toggle{display:block;margin:10px auto 0;color:var(--navy);font-weight:600;font-size:13px}
:root[data-theme="dark"] .seo-toggle{color:var(--gold-2)}
.faq{border-top:1px solid var(--line-2);margin-top:14px}
.faq details{border-bottom:1px solid var(--line-2)}
.faq summary{padding:12px 0;font-weight:600;font-size:13.5px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold);font-weight:800;font-size:18px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin:0 0 12px;color:var(--ink-2);font-size:13px;max-width:78ch}
:root[data-theme="dark"] .fcols .tel{color:var(--gold-2)}
.cmpbar{position:fixed;left:0;right:0;bottom:0;z-index:75;background:var(--navy);color:#fff;transform:translateY(110%);transition:transform .2s ease;padding:11px 14px calc(11px + env(safe-area-inset-bottom))}
.cmpbar.show{transform:none}
.cmpbar .inner{max-width:var(--w);margin:0 auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cmpbar .items{flex:1;font-size:12.5px;color:#D7E1F0;min-width:180px}
.cmpbar .go{background:var(--gold);color:var(--navy-2);font-weight:700;border-radius:8px;padding:8px 18px;font-size:13px}
.cmpbar .clear{font-size:12.5px;color:#AFC0DA;text-decoration:underline}
/* drawer */
.drawer{position:fixed;inset:0;z-index:80;display:none}
.drawer.open{display:block}
.drawer .mask{position:absolute;inset:0;background:rgba(11,27,54,.5)}
.drawer .sheet{position:absolute;right:0;top:0;bottom:0;width:min(360px,88vw);background:var(--card);padding:16px;overflow-y:auto}
.drawer h3{margin:0 0 4px;font-size:16px}
.drawer .grp{margin-top:16px}
.drawer .grp b{font-size:13px;display:block;margin-bottom:8px}
.drawer .opts{display:flex;flex-wrap:wrap;gap:8px}
.drawer .apply{position:sticky;bottom:0;background:var(--card);padding-top:12px;margin-top:20px;display:flex;gap:8px}
.drawer .apply button{flex:1;border-radius:9px;padding:11px 0;font-weight:700;font-size:13.5px}
.drawer .apply .ok{background:var(--navy);color:#fff}
.drawer .apply .rs{border:1px solid var(--line);color:var(--ink-2)}
/* ===== BO SUNG: H1 + SAPO DANH MUC =====
   Mockup khong co H1 (bat dau thang bang breadcrumb) nen khong co san CSS.
   Them H1 theo rule B4, cho kich thuoc can doi voi cac tieu de khac. */
.cate-h1{margin:2px 0 6px;font-size:26px;font-weight:800;letter-spacing:-.6px;line-height:1.2}
.cate-sapo{margin:0 0 14px;font-size:13px;color:var(--ink-2);line-height:1.6;max-width:80ch}
@media(max-width:700px){.cate-h1{font-size:20px}}
/* Mockup khong co breakpoint cho .banners: o dien thoai 2 cot chi con ~180px
   moi ben nen so tien "500.000d" bi cat va chu xuong dong lien tuc.
   Duoi 760px xep doc, chu co lai cho vua. */
@media(max-width:760px){
  .banners{grid-template-columns:1fr}
  .bn{min-height:0;padding:18px}
  .bn .big{font-size:26px}
  .bn .deco{display:none}
}
/* ===== TRANG TAT CA SAN PHAM (/san-pham) =====
   Moi nhom san pham la mot .panel rieng co tieu de H2 = ten danh muc. */
.v2-groupnav{padding:12px 14px;margin-bottom:12px}
.v2-group{margin-bottom:14px}
.v2-group .sec-head h2{font-size:18px}
.v2-group .sec-head h2 a{color:inherit}
.v2-group .sec-head h2 a:hover{color:var(--navy)}
:root[data-theme="dark"] .v2-group .sec-head h2 a:hover{color:var(--gold-2)}
/* ===== LUOI SAN PHAM TRANG DANH MUC =====
   Mockup danh muc dung 5 cot, khac trang chu (6 cot trong v2-base.css).
   Luc tach file, quy tac nay bi loc bo vi trung ten selector .grid - phai
   khai lai o day de de len v2-base.css (nap sau nen thang). */
.grid{grid-template-columns:repeat(5,minmax(0,1fr))}
/* Cac selector trung ten voi v2-base.css nhung GIA TRI khac trong mockup
   danh muc - cung bi loc bo luc tach file, khai lai o day. */
.cd-num{background:var(--gold);color:var(--navy-2);border-radius:5px;padding:2px 6px;min-width:26px;font-size:13px}
.more{margin:16px auto 6px}
/* Chep dung mockup. Mockup KHONG dat display:block cho .nm/.pr - chung
   xuong dong nho <span> boc ngoai duoc dat display:block. Dat block thang
   len .pr lam no rong ca hang (205px thay vi 65px). */
.seen-card > span:last-child{display:block}
.seen-card .nm{font-size:12.5px;line-height:1.35;font-weight:500}
.seen-card .pr{display:inline-block}
.seen-card .pr{color:var(--red);font-weight:700;font-size:13px;margin-top:3px}
.seen{display:flex;gap:10px;padding-bottom:2px}
/* Tieu de trong .panel: mockup 15px/700, khong phai 16px/800 cua .sec-h-sm. */
.panel .sec-head h2,.panel h2{margin:0 0 10px;font-size:15px;font-weight:700}
/* Bang loc chi tiet: an san, nut "Loc" mo ra. Dung lai sidebar_filter cua
   ban cu nen phai go bo rang buoc cot cua bootstrap ben trong. */
.v2-filter-panel{margin:12px 0 4px;padding:14px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--chip)}
.v2-filter-panel .col-lg-3,.v2-filter-panel aside{width:100%;max-width:none;flex:0 0 100%;padding:0}
/* Nhan banner: mockup dung <h3>, o day dung <div class="bn-h"> cho dung
   rule B2 (khong dung the H cho nhan quang cao). Giu nguyen kich thuoc. */
.bn .bn-h{margin:4px 0 6px;font-size:23px;font-weight:800;line-height:1.15;letter-spacing:-.3px}
@media(max-width:760px){.bn .bn-h{font-size:19px}}
/* Mockup danh muc: .panel co margin-bottom:12px, v2-base.css (trang chu)
   thi khong - vi trang chu dung .sec de tao khoang cach. Quy tac nay bi loc
   bo luc tach file vi trung ten selector, lam cac khoi dinh sat nhau (0px). */
.panel{margin-bottom:12px}

/* ===== SO COT LUOI - RIENG TUNG TRANG =====
   Moi thu khac cua the san pham nam o v2-base.css (dung chung). Rieng SO COT
   thi moi mockup mot khac nen phai khai o day.
   Mockup danh muc: 5 cot. */
.grid{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:1080px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:860px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:620px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}}