:root {
  --bg:#F4F6F3; --surface:#FFFFFF; --surface-2:#FBFCFB; --ink:#171B18; --ink-soft:#4C554E;
  --ink-faint:#7C857E; --line:#E1E5DF; --line-strong:#CBD1C8; --accent:#0A7A3A; --accent-ink:#FFFFFF;
  --accent-soft:#E2F1E7; --amber:#B0742A; --amber-soft:#F5EAD9; --blue-grid:#0A7A3A;
  --shadow:0 1px 2px rgba(23,27,24,.06),0 8px 24px rgba(23,27,24,.08);
  --font-ui:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0F1310;--surface:#171C18;--surface-2:#1C221D;--ink:#E9EDE8;--ink-soft:#AEB6AF;--ink-faint:#79817B;
  --line:#262C26;--line-strong:#333B33;--accent:#4FC47C;--accent-ink:#0C1410;--accent-soft:#14311F;
  --amber:#D79A4F;--amber-soft:#2B2416;--blue-grid:#4FC47C;--shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.5);}}
:root[data-theme="dark"]{--bg:#0F1310;--surface:#171C18;--surface-2:#1C221D;--ink:#E9EDE8;--ink-soft:#AEB6AF;--ink-faint:#79817B;
  --line:#262C26;--line-strong:#333B33;--accent:#4FC47C;--accent-ink:#0C1410;--accent-soft:#14311F;
  --amber:#D79A4F;--amber-soft:#2B2416;--blue-grid:#4FC47C;--shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.5);}
:root[data-theme="light"]{--bg:#F4F6F3;--surface:#FFFFFF;--surface-2:#FBFCFB;--ink:#171B18;--ink-soft:#4C554E;--ink-faint:#7C857E;
  --line:#E1E5DF;--line-strong:#CBD1C8;--accent:#0A7A3A;--accent-ink:#FFFFFF;--accent-soft:#E2F1E7;
  --amber:#B0742A;--amber-soft:#F5EAD9;--blue-grid:#0A7A3A;--shadow:0 1px 2px rgba(23,27,24,.06),0 8px 24px rgba(23,27,24,.08);}

*{box-sizing:border-box;} html,body{height:100%;}
body{margin:0;font-family:var(--font-ui);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.45;}
button{font-family:inherit;cursor:pointer;} img{max-width:100%;}
::selection{background:var(--accent-soft);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

.app{display:flex;flex-direction:column;min-height:100%;}
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:18px;padding:11px 20px;
  background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line);}
.brand{display:flex;align-items:center;gap:12px;}
.brand__mark{width:32px;height:32px;border-radius:8px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:800;font-size:14px;letter-spacing:.5px;}
.brand__name{font-weight:700;font-size:14px;}
.search{flex:1;max-width:560px;position:relative;margin:0 auto 0 8px;}
.search input{width:100%;padding:9px 12px 9px 36px;font-size:14px;font-family:inherit;color:var(--ink);background:var(--surface-2);border:1px solid var(--line-strong);border-radius:9px;}
.search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}
.search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--ink-faint);}
.topbar__actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.iconbtn{width:34px;height:34px;display:grid;place-items:center;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);}
.iconbtn:hover{background:var(--surface-2);color:var(--ink);}
.railbtn{display:none;}

.banner{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:9px 20px;font-size:12.5px;background:var(--amber-soft);color:var(--amber);border-bottom:1px solid var(--line);}
.banner b{color:var(--amber);} .banner .sep{opacity:.4;}

.shell{display:grid;grid-template-columns:250px 1fr;flex:1;min-height:0;}
.rail{border-right:1px solid var(--line);background:var(--surface);padding:18px 16px;overflow-y:auto;}
.rail__title{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:var(--ink-faint);font-weight:700;margin:0 0 10px;}
.rail__group{margin-bottom:22px;}
.filter{display:flex;align-items:center;gap:9px;padding:7px 8px;border-radius:8px;font-size:13px;color:var(--ink-soft);cursor:pointer;user-select:none;}
.filter:hover{background:var(--surface-2);}
.filter input{accent-color:var(--accent);width:15px;height:15px;}
.filter .cnt{margin-left:auto;font-size:11px;color:var(--ink-faint);font-variant-numeric:tabular-nums;}
.filter.on{color:var(--ink);font-weight:600;}
.toggle{display:flex;align-items:center;gap:9px;padding:8px;border-radius:8px;font-size:13px;color:var(--ink-soft);cursor:pointer;}
.toggle:hover{background:var(--surface-2);} .toggle input{accent-color:var(--accent);width:15px;height:15px;}
.rail__clear{font-size:12px;color:var(--accent);background:none;border:none;padding:4px 0;margin-top:2px;}
.feedback{margin-top:6px;font-size:12px;color:var(--ink-soft);line-height:1.5;}
.feedback a{color:var(--accent);font-weight:600;text-decoration:none;} .feedback a:hover{text-decoration:underline;}

.main{display:flex;flex-direction:column;min-width:0;}
.main__head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;padding:16px 22px 12px;border-bottom:1px solid var(--line);}
.main__head h1{font-size:17px;margin:0;letter-spacing:-.01em;} .main__head .count{color:var(--ink-faint);font-size:13px;}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-left:auto;}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:4px 8px 4px 10px;border-radius:20px;background:var(--accent-soft);color:var(--accent);font-weight:600;}
.chip button{background:none;border:none;color:inherit;font-size:14px;line-height:1;padding:0;opacity:.7;} .chip button:hover{opacity:1;}

.tablewrap{overflow-y:auto;flex:1;padding:20px 22px 40px;}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(224px,1fr));gap:16px;}
.card-item{display:flex;flex-direction:column;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;cursor:pointer;padding:0;color:inherit;transition:border-color .16s,box-shadow .16s,transform .16s;}
.card-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow);transform:translateY(-2px);}
@media (prefers-reduced-motion:reduce){.card-item{transition:none;}.card-item:hover{transform:none;}}
.card-item.sel{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}
.card-item__media{position:relative;aspect-ratio:4/3;background:var(--surface-2);border-bottom:1px solid var(--line);}
.card-item__media svg,.card-item__media img{width:100%;height:100%;display:block;object-fit:contain;}
.card-item__media.has-photo{background:#fff;} .card-item__media.has-photo img{padding:10px;}
.card-item__tag{position:absolute;top:10px;left:10px;font-size:11px;font-weight:600;padding:3px 8px;border-radius:6px;background:color-mix(in srgb,var(--surface) 78%,transparent);backdrop-filter:blur(4px);border:1px solid var(--line);color:var(--accent);}
.card-item__tag.fab{color:var(--amber);}
.card-item__unit{position:absolute;top:10px;right:10px;font-size:11px;font-weight:600;padding:3px 8px;border-radius:6px;background:color-mix(in srgb,var(--surface) 78%,transparent);backdrop-filter:blur(4px);border:1px solid var(--line);color:var(--ink-soft);}
.card-item__noimg{position:absolute;bottom:8px;left:10px;font-size:10px;color:var(--ink-faint);background:color-mix(in srgb,var(--surface) 70%,transparent);padding:2px 6px;border-radius:5px;}
.card-item__body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:4px;flex:1;}
.card-item__code{font-size:12px;color:var(--accent);font-weight:600;}
.card-item__name{font-weight:650;line-height:1.32;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-item__model{font-size:11.5px;color:var(--ink-faint);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:1px;}
.card-item__foot{margin-top:auto;padding-top:10px;display:flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-soft);border-top:1px solid var(--line);}
.loadmore{display:flex;justify-content:center;padding:24px 0 8px;}
.loadmore button{padding:10px 22px;border-radius:9px;border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);font-weight:600;font-size:13px;}
.loadmore button:hover{background:var(--surface-2);}
.tag{display:inline-block;font-size:11px;font-weight:600;padding:2px 8px;border-radius:5px;background:var(--accent-soft);color:var(--accent);white-space:nowrap;}
.tag--fab{background:var(--amber-soft);color:var(--amber);}
.empty{padding:60px 20px;text-align:center;color:var(--ink-faint);}
.spinner{width:26px;height:26px;border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:40px auto;}
@keyframes spin{to{transform:rotate(360deg);}}
@media (prefers-reduced-motion:reduce){.spinner{animation:none;}}

.drawer{position:fixed;top:0;right:0;height:100%;width:460px;max-width:92vw;background:var(--surface);border-left:1px solid var(--line);box-shadow:var(--shadow);transform:translateX(100%);transition:transform .28s cubic-bezier(.4,0,.2,1);z-index:50;display:flex;flex-direction:column;}
.drawer.open{transform:translateX(0);}
@media (prefers-reduced-motion:reduce){.drawer{transition:none;}}
.scrim{position:fixed;inset:0;background:rgba(10,14,11,.38);opacity:0;visibility:hidden;transition:opacity .28s;z-index:40;}
.scrim.open{opacity:1;visibility:visible;}
.drawer__head{display:flex;align-items:flex-start;gap:10px;padding:18px 20px 14px;border-bottom:1px solid var(--line);}
.drawer__head .close{margin-left:auto;width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);display:grid;place-items:center;font-size:18px;flex:none;}
.drawer__head .close:hover{background:var(--surface-2);color:var(--ink);}
.drawer__title{font-size:16px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.drawer__body{overflow-y:auto;padding:18px 20px 28px;}
.media{aspect-ratio:4/3;width:100%;border-radius:12px;border:1px solid var(--line);overflow:hidden;background:var(--surface-2);margin-bottom:10px;position:relative;}
.media svg,.media img{width:100%;height:100%;display:block;object-fit:contain;}
.media.has-photo{background:#fff;} .media.has-photo img{padding:14px;}
.media__note{position:absolute;bottom:10px;left:12px;font-size:11px;color:var(--ink-faint);background:color-mix(in srgb,var(--surface) 75%,transparent);padding:3px 8px;border-radius:6px;}
.specs{display:grid;grid-template-columns:120px 1fr;border:1px solid var(--line);border-radius:10px;overflow:hidden;margin-top:8px;}
.specs dt{padding:10px 12px;font-size:12px;color:var(--ink-faint);font-weight:600;background:var(--surface-2);border-bottom:1px solid var(--line);}
.specs dd{padding:10px 12px;margin:0;font-size:13px;color:var(--ink);border-bottom:1px solid var(--line);}
.specs dt:last-of-type,.specs dd:last-of-type{border-bottom:none;}
.code-row{display:flex;align-items:center;gap:8px;}
.copybtn{border:1px solid var(--line-strong);background:var(--surface);color:var(--ink-soft);border-radius:6px;padding:2px 8px;font-size:11px;font-weight:600;}
.copybtn:hover{background:var(--surface-2);color:var(--ink);} .copybtn.done{color:var(--accent);border-color:var(--accent);}
.sap-note{margin-top:16px;padding:12px 14px;border-radius:10px;background:var(--surface-2);border:1px dashed var(--line-strong);font-size:12.5px;color:var(--ink-soft);line-height:1.5;}
.sap-note .lab{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);font-weight:700;display:block;margin-bottom:4px;}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:var(--bg);padding:9px 16px;border-radius:9px;font-size:13px;box-shadow:var(--shadow);opacity:0;transition:all .25s;z-index:60;pointer-events:none;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
@media (max-width:900px){
  .shell{grid-template-columns:1fr;}
  .rail{position:fixed;inset:0 auto 0 0;z-index:45;width:270px;transform:translateX(-100%);transition:transform .25s;}
  .rail.open{transform:translateX(0);box-shadow:var(--shadow);}
  .railbtn{display:grid;}
}


/* ===== BAF brand header ===== */
:root{--brand:#0A6E34;--brand-2:#0E7E40;--brand-ink:#FFFFFF;}
.topbar{background:linear-gradient(90deg,var(--brand),var(--brand-2));border-bottom:1px solid rgba(0,0,0,.15);}
.topbar .iconbtn{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.25);color:#fff;}
.topbar .iconbtn:hover{background:rgba(255,255,255,.24);color:#fff;}
.brand{text-decoration:none;gap:10px;}
.brand__logo{height:30px;width:auto;display:block;}
.brand__divider{width:1px;height:22px;background:rgba(255,255,255,.35);}
.brand__name{color:#fff;font-weight:600;font-size:14px;letter-spacing:.2px;}
.search input{background:rgba(255,255,255,.96);border-color:transparent;}
.search svg{color:#6b746d;}
@media (max-width:640px){.brand__divider,.brand__name{display:none;}}

/* ===== Responsive: tablet & mobile ===== */
/* Tablet: lưới thẻ gọn hơn một chút */
@media (max-width:1024px){
  .cards{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;}
}
/* Mobile: topbar xuống dòng, ô tìm kiếm chiếm trọn hàng dưới */
@media (max-width:640px){
  .topbar{flex-wrap:wrap;gap:10px 12px;padding:10px 14px;}
  .railbtn{order:0;}
  .brand{order:1;gap:8px;}
  .brand__logo{height:26px;}
  .topbar__actions{order:2;margin-left:auto;}
  .search{order:3;flex:1 1 100%;max-width:none;margin:0;}
  .banner{padding:9px 14px;font-size:12px;}
  .main__head{padding:14px 16px 10px;}
  .main__head .chips{margin-left:0;flex-basis:100%;}
  .tablewrap{padding:16px 14px 36px;}
  .cards{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;}
  .drawer{width:100%;max-width:100%;}
  .rail{width:84vw;max-width:320px;}
}
/* điện thoại: 1 cột cho dễ đọc, tránh tràn ngang */
@media (max-width:480px){
  .cards{grid-template-columns:1fr;}
}
/* chặn tràn ngang toàn cục */
html,body{max-width:100%;overflow-x:hidden;}
/* Backdrop mờ khi mở rail trên mobile */
.rail-scrim{position:fixed;inset:0;background:rgba(10,14,11,.38);opacity:0;visibility:hidden;transition:opacity .25s;z-index:44;}
.rail-scrim.open{opacity:1;visibility:visible;}
@media (min-width:901px){.rail-scrim{display:none;}}