/* =========================================================
   FLASH SALE DEAL 1K – giao diện bán hàng uy tín
   ========================================================= */
:root{
  --red:#e53935; --red-dark:#c62828; --org:#ff6d00; --grn:#2e9e5b; --grn-d:#1b7a43;
  --bg:#f4f5f7; --card:#fff; --text:#212121; --soft:#6b6b6b; --mute:#9e9e9e;
  --line:#ececec; --star:#ffb300; --radius:14px; --shadow:0 2px 14px rgba(0,0,0,.07);
  --shadow-h:0 12px 30px rgba(229,57,53,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Roboto',-apple-system,'Segoe UI',Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 14px}
.wrap{width:100%;max-width:760px;margin:0 auto;padding:0 14px}

/* Trust bar */
.trustbar{background:var(--grn-d);color:#fff;font-size:12.5px;text-align:center;padding:6px 10px}
.trustbar b{font-weight:700}

/* Header */
.header{background:linear-gradient(90deg,var(--red),var(--org));color:#fff;position:sticky;top:0;z-index:40;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.header-in{display:flex;align-items:center;gap:12px;height:60px}
.logo{display:flex;align-items:center;gap:10px}
.logo .mk{width:40px;height:40px;border-radius:10px;background:#fff;color:var(--red);display:grid;place-items:center;font-size:20px;font-weight:900;box-shadow:0 3px 8px rgba(0,0,0,.16)}
.logo .nm{font-size:19px;font-weight:900;letter-spacing:.3px;line-height:1}
.logo .sb{font-size:10px;opacity:.92;font-weight:500}
.header .hactions{margin-left:auto;display:flex;gap:8px;align-items:center}
.badge-cod{background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.4);padding:6px 12px;border-radius:20px;font-size:12px;font-weight:700;white-space:nowrap}

/* Hero flash */
.hero{background:linear-gradient(120deg,var(--red-dark),var(--red) 55%,var(--org));color:#fff;padding:20px 0}
.hero-in{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero h1{font-size:23px;font-weight:900;line-height:1.15;text-shadow:0 2px 6px rgba(0,0,0,.15)}
.hero p{font-size:13px;opacity:.95;margin-top:4px}
.hero .cd{margin-left:auto;display:flex;gap:6px;align-items:center}
.hero .cd .b{background:rgba(0,0,0,.28);border-radius:8px;min-width:42px;text-align:center;padding:6px 4px;font-weight:800;font-size:18px;font-variant-numeric:tabular-nums}
.hero .cd small{display:block;font-size:9px;font-weight:400;opacity:.85}
.hero .cd .c{font-weight:800}

/* Trust strip */
.tstrip{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:16px 0}
.tstrip .t{background:#fff;border-radius:12px;padding:12px 8px;text-align:center;box-shadow:var(--shadow)}
.tstrip .t .i{font-size:24px}
.tstrip .t h4{font-size:13px;margin-top:4px}
.tstrip .t p{font-size:11px;color:var(--soft)}

/* Section head */
.shead{display:flex;align-items:center;gap:8px;margin:22px 0 12px;border-left:4px solid var(--red);padding-left:12px}
.shead h2{font-size:20px;font-weight:800}
.shead .s{font-size:13px;color:var(--soft)}

/* Product grid */
.grid{display:grid;gap:12px;grid-template-columns:repeat(5,1fr)}
.card{background:var(--card);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .16s,box-shadow .16s;position:relative}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.card .imgw{position:relative;aspect-ratio:1/1;background:#f3f3f3;overflow:hidden}
.card .imgw img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.card:hover .imgw img{transform:scale(1.06)}
.card .disc{position:absolute;top:0;right:0;background:#ffd400;color:var(--red-dark);font-weight:900;font-size:12px;padding:4px 5px 6px;border-bottom-left-radius:6px;line-height:1;text-align:center}
.card .disc small{display:block;font-size:8px;font-weight:700}
.card .flashtag{position:absolute;top:8px;left:0;background:var(--red);color:#fff;font-size:10px;font-weight:800;padding:3px 8px 3px 6px;border-radius:0 10px 10px 0}
.card .bd{padding:8px 9px 11px;display:flex;flex-direction:column;flex:1}
.card .ti{font-size:13px;line-height:1.35;height:35px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.card .pr{margin-top:8px;display:flex;align-items:baseline;gap:6px;flex-wrap:wrap}
.card .pr .now{color:var(--red);font-weight:900;font-size:18px}
.card .pr .now .c{font-size:11px}
.card .pr .old{color:var(--mute);font-size:12px;text-decoration:line-through}
.card .mt{display:flex;align-items:center;gap:6px;margin-top:5px;font-size:11px;color:var(--soft)}
.card .stars{color:var(--star);letter-spacing:-1px}
.card .sold{margin-left:auto}
.card .buy{margin-top:9px;display:block;text-align:center;background:linear-gradient(90deg,var(--red),var(--org));color:#fff;font-weight:800;font-size:13px;padding:9px;border-radius:8px;transition:filter .15s,transform .1s}
.card .buy:hover{filter:brightness(1.07);transform:scale(1.02)}
.empty{grid-column:1/-1;text-align:center;padding:50px 0;color:var(--mute)}

/* Skeleton */
.sk{background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.sk .si{aspect-ratio:1/1;background:linear-gradient(90deg,#eee 25%,#f5f5f5 37%,#eee 63%);background-size:400% 100%;animation:sh 1.3s ease infinite}
.sk .sl{height:12px;margin:9px;border-radius:4px;background:linear-gradient(90deg,#eee 25%,#f5f5f5 37%,#eee 63%);background-size:400% 100%;animation:sh 1.3s ease infinite}
@keyframes sh{0%{background-position:100% 0}100%{background-position:0 0}}

/* ===== Order page ===== */
.ord{padding:18px 0 40px}
.ord .box{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.ord .box h3{font-size:16px;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.psum{display:flex;gap:14px;align-items:center}
.psum img{width:88px;height:88px;border-radius:10px;object-fit:cover;flex-shrink:0}
.psum .nm{font-size:15px;font-weight:600;line-height:1.35}
.psum .pr{margin-top:6px}
.psum .pr .now{color:var(--red);font-weight:900;font-size:22px}
.psum .pr .old{color:var(--mute);font-size:13px;text-decoration:line-through;margin-left:8px}
label.f{font-size:13px;font-weight:700;display:block;margin:12px 0 5px}
label.f .req{color:var(--red)}
input.t,select.t,textarea.t{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:12px 13px;font-size:15px;font-family:inherit;outline:none;transition:border .15s;background:#fff}
input.t:focus,select.t:focus,textarea.t:focus{border-color:var(--red)}
input.t.err,select.t.err{border-color:var(--red);background:#fff5f5}
textarea.t{min-height:70px;resize:vertical}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.addr-toggle{display:flex;gap:8px;margin-bottom:6px}
.addr-toggle button{flex:1;border:1.5px solid var(--line);background:#fff;padding:10px;border-radius:10px;font-size:13px;font-weight:700;cursor:pointer;color:var(--soft);transition:all .15s}
.addr-toggle button.on{border-color:var(--red);background:#fff5f5;color:var(--red)}
.addr-toggle button small{display:block;font-weight:400;font-size:10px;color:var(--mute);margin-top:2px}
.err-msg{color:var(--red);font-size:12px;margin-top:4px;min-height:14px}

/* Bill */
.bill{font-size:14px}
.bill .r{display:flex;justify-content:space-between;padding:6px 0}
.bill .r .old{color:var(--mute);text-decoration:line-through;margin-right:6px;font-size:13px}
.bill .r .disc{color:var(--grn);font-weight:700}
.bill .r.ship .v{color:var(--grn);font-weight:800}
.bill .total{border-top:2px dashed var(--line);margin-top:6px;padding-top:10px;font-size:16px;font-weight:800}
.bill .total .v{color:var(--red);font-size:22px;font-weight:900}
.ship-note{background:#eafaf0;border:1px solid #bfe9cf;color:var(--grn-d);font-size:12px;padding:8px 10px;border-radius:8px;margin-top:8px}

.btn-order{width:100%;background:linear-gradient(90deg,var(--red),var(--org));color:#fff;border:0;font-weight:900;font-size:17px;padding:15px;border-radius:12px;cursor:pointer;box-shadow:0 8px 20px rgba(229,57,53,.28);transition:transform .12s,filter .15s;margin-top:6px}
.btn-order:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-order:disabled{opacity:.6;cursor:not-allowed;transform:none}
.cod-line{display:flex;align-items:center;gap:8px;background:#fff8e1;border:1px solid #ffe082;border-radius:10px;padding:10px 12px;font-size:13px;margin-top:10px}
.cod-line .ic{font-size:20px}

/* Success */
.success{text-align:center;padding:26px 18px}
.success .ck{width:78px;height:78px;border-radius:50%;background:var(--grn);color:#fff;display:grid;place-items:center;font-size:44px;margin:0 auto 14px;animation:pop .3s ease}
@keyframes pop{0%{transform:scale(.5);opacity:0}100%{transform:scale(1);opacity:1}}
.success h2{font-size:22px;color:var(--grn-d)}
.success .oid{font-size:14px;background:#f1f1f1;border-radius:8px;padding:8px 14px;display:inline-block;margin:10px 0;font-weight:700}
.success .det{text-align:left;background:#fafafa;border-radius:10px;padding:14px;margin-top:12px;font-size:14px}
.success .det div{padding:4px 0}

/* Footer */
.footer{background:#fff;margin-top:36px;border-top:3px solid var(--red)}
.footer .fin{padding:26px 14px;text-align:center;font-size:13px;color:var(--soft)}
.footer .fin b{color:var(--text)}
.footer .pol{border-top:1px solid var(--line);padding:14px;text-align:center;font-size:12px;color:var(--mute)}

/* Tracking */
.track-order{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:14px}
.track-head{display:flex;gap:12px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:12px}
.track-head img{width:60px;height:60px;border-radius:10px;object-fit:cover;flex-shrink:0}
.track-head .nm{font-size:14px;font-weight:600;line-height:1.35}
.track-head .meta{font-size:12px;color:var(--soft);margin-top:3px}
.track-head .tot{color:var(--red);font-weight:800;font-size:16px}
.trk-code{background:#eafaf0;border:1px solid #bfe9cf;border-radius:10px;padding:10px 12px;margin:12px 0;font-size:13px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.trk-code b{color:var(--grn-d);font-size:15px;letter-spacing:.5px}
.trk-code button{margin-left:auto;border:1px solid var(--grn);color:var(--grn-d);background:#fff;border-radius:14px;padding:4px 12px;font-size:12px;font-weight:700;cursor:pointer}
.trk-code.none{background:#fff8e1;border-color:#ffe082;color:#8a6d00}
.spx-btn{background:var(--grn);color:#fff;border-radius:14px;padding:6px 12px;font-size:12px;font-weight:700;text-decoration:none;white-space:nowrap}
.spx-btn:hover{background:var(--grn-d)}
.timeline{display:flex;justify-content:space-between;position:relative;margin:16px 4px 6px}
.timeline::before{content:"";position:absolute;top:13px;left:6%;right:6%;height:3px;background:var(--line)}
.timeline .prog{content:"";position:absolute;top:13px;left:6%;height:3px;background:var(--grn);transition:width .3s}
.tl-step{position:relative;z-index:1;text-align:center;flex:1}
.tl-step .dot{width:28px;height:28px;border-radius:50%;background:#fff;border:3px solid var(--line);margin:0 auto;display:grid;place-items:center;font-size:13px;color:var(--mute)}
.tl-step.done .dot{border-color:var(--grn);background:var(--grn);color:#fff}
.tl-step.cur .dot{border-color:var(--grn);background:#fff;color:var(--grn);box-shadow:0 0 0 4px rgba(46,158,91,.15)}
.tl-step .lb{font-size:11px;margin-top:5px;color:var(--soft);line-height:1.2}
.tl-step.done .lb,.tl-step.cur .lb{color:var(--grn-d);font-weight:700}
.trk-cancel{background:#ffebee;color:#c62828;border-radius:10px;padding:12px;text-align:center;font-weight:700}

/* Limit modal */
.limit-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center;z-index:200;padding:18px}
.limit-overlay.show{display:flex}
.limit-modal{background:#fff;border-radius:18px;max-width:400px;width:100%;padding:26px 22px;text-align:center;box-shadow:0 20px 50px rgba(0,0,0,.3);animation:pop .3s ease}
.limit-modal .lm-ic{font-size:52px}
.limit-modal h3{font-size:20px;color:var(--red-dark);margin:8px 0}
.limit-modal p{font-size:14.5px;color:var(--text);line-height:1.5;background:#fff5f5;border:1px solid #ffd7d7;border-radius:10px;padding:12px;margin:10px 0 16px}
.limit-modal .lm-close{background:none;border:0;color:var(--soft);font-size:14px;cursor:pointer;margin-top:12px;text-decoration:underline}

/* Toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);background:#323232;color:#fff;padding:12px 22px;border-radius:24px;font-size:14px;opacity:0;pointer-events:none;transition:all .25s;z-index:100;max-width:90%;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.err{background:var(--red-dark)}

/* Back link */
.backlink{display:inline-flex;align-items:center;gap:6px;color:var(--red);font-weight:700;font-size:14px;margin:14px 0}

@media(max-width:1024px){.grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:768px){.grid{grid-template-columns:repeat(3,1fr)}.tstrip{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .hero .cd{margin-left:0;width:100%}
  .hero h1{font-size:20px}
  .two{grid-template-columns:1fr}
  .logo .nm{font-size:16px}
  .header-in{height:54px}
}