/* DinCox Shoes — site.css (web bán hàng) */
:root{
  --navy:#1a2a4f; --navy-2:#24376b; --orange:#f26a21; --orange-2:#ff8a3d; --red:#e53935;
  --gray:#f5f6f8; --gray-2:#e8eaee; --text:#2c2f36; --muted:#6b7280; --white:#fff;
  --green:#1d7a3f; --radius:14px; --shadow:0 6px 24px rgba(26,42,79,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Roboto Slab',Georgia,"Segoe UI",serif;color:var(--text);background:var(--white);line-height:1.6}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;font-weight:700;
  font-size:.95rem;padding:12px 22px;border-radius:30px;font-family:inherit;transition:.2s}
.btn-orange{background:var(--orange);color:#fff}.btn-orange:hover{background:var(--orange-2)}
.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{background:var(--navy-2)}
.btn-out{background:#fff;color:var(--navy);border:2px solid var(--navy)}.btn-out:hover{background:var(--navy);color:#fff}
.btn-full{width:100%}
/* HEADER */
.topbar{background:var(--navy-2);color:#fff;font-size:.8rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:34px;gap:12px;flex-wrap:wrap}
.topbar a{color:#fff}.topbar strong{color:#ffcf9e}
.navbar{position:sticky;top:0;z-index:200;background:var(--navy);color:#fff;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;letter-spacing:.5px;color:#fff}
.logo img{height:38px;width:auto}
.logo span{color:var(--orange)}
.menu{display:flex;gap:20px;font-weight:600;font-size:.92rem;align-items:center}
.menu a{color:#fff;padding:6px 2px;border-bottom:2px solid transparent}
.menu a:hover,.menu a.on{color:var(--orange-2);border-color:var(--orange-2)}
.hd-act{display:flex;align-items:center;gap:14px}
.hd-hl{color:#fff;font-size:.85rem;text-align:right;line-height:1.25}
.hd-hl strong{display:block;color:#ffcf9e;font-size:1rem}
.cart-btn{position:relative;background:var(--orange);color:#fff;border-radius:30px;padding:9px 16px;font-weight:700;font-size:.88rem}
.cart-badge{position:absolute;top:-6px;right:-6px;background:var(--red);color:#fff;border-radius:20px;min-width:20px;
  height:20px;font-size:.72rem;display:flex;align-items:center;justify-content:center;padding:0 5px}
.burger{display:none;background:none;border:none;color:#fff;font-size:1.6rem;cursor:pointer}
/* HERO */
.hero{position:relative;background:var(--navy);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;object-fit:cover;opacity:.32;width:100%;height:100%}
.hero-in{position:relative;display:grid;gap:18px;padding:74px 0;max-width:640px}
.hero .tag{background:rgba(242,106,33,.9);display:inline-block;padding:5px 14px;border-radius:20px;font-size:.78rem;font-weight:700;width:fit-content}
.hero h1{font-size:2.5rem;line-height:1.2}
.hero p{font-size:1.05rem;opacity:.95}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.hero-usp{display:flex;gap:22px;flex-wrap:wrap;font-size:.85rem;opacity:.95}
/* SECTIONS */
.sec{padding:56px 0}
.sec.alt{background:var(--gray)}
.sec-head{text-align:center;margin-bottom:34px}
.sec-head .tag{color:var(--orange);font-weight:800;letter-spacing:2px;font-size:.75rem;text-transform:uppercase}
.sec-head h2{font-size:1.9rem;color:var(--navy);margin-top:6px}
.sec-head p{color:var(--muted);margin-top:8px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
/* PRODUCT CARD */
.prd{background:#fff;border:1px solid var(--gray-2);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.prd:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.prd-img{position:relative;display:block;background:var(--gray);aspect-ratio:1/1;overflow:hidden}
.prd-img img{width:100%;height:100%;object-fit:cover}
.prd-badge{position:absolute;top:10px;left:10px;background:var(--orange);color:#fff;font-size:.7rem;font-weight:800;
  padding:4px 10px;border-radius:20px;letter-spacing:.5px}
.prd-badge.b2{background:var(--navy);left:auto;right:10px}
.prd-body{padding:14px;display:flex;flex-direction:column;gap:8px;flex:1}
.prd-body h3{font-size:.98rem;color:var(--navy);line-height:1.35;min-height:42px}
.prd-price{color:var(--red);font-weight:800;font-size:1.1rem}
.prd-price s{color:var(--muted);font-weight:500;font-size:.85rem;margin-left:6px}
.prd-size{font-size:.8rem;color:var(--muted)}
.prd-btns{display:flex;gap:8px;margin-top:auto}
.prd-btns .btn{flex:1;padding:9px 10px;font-size:.82rem;border-radius:10px}
/* FILTER BAR */
.filters{display:flex;gap:12px;flex-wrap:wrap;align-items:center;background:#fff;border:1px solid var(--gray-2);
  border-radius:var(--radius);padding:14px;margin-bottom:24px}
.filters select,.filters input{font-family:inherit;font-size:.9rem;padding:10px 12px;border:1px solid var(--gray-2);border-radius:10px;background:#fff}
.filters input{flex:1;min-width:180px}
.filters .chip{border:1px solid var(--gray-2);border-radius:30px;padding:8px 16px;font-size:.85rem;font-weight:600;cursor:pointer;background:#fff}
.filters .chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.count{color:var(--muted);font-size:.88rem;margin-bottom:14px}
/* BREADCRUMB */
.crumb{font-size:.85rem;color:var(--muted);padding:16px 0}
.crumb a:hover{color:var(--orange)}
/* DETAIL */
.detail{display:grid;grid-template-columns:1.05fr 1fr;gap:38px;padding-bottom:40px}
.gal-main{border:1px solid var(--gray-2);border-radius:var(--radius);overflow:hidden;background:var(--gray);aspect-ratio:1/1}
.gal-main img{width:100%;height:100%;object-fit:cover}
.gal-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.gal-thumbs img{border:2px solid var(--gray-2);border-radius:10px;cursor:pointer;aspect-ratio:1/1;object-fit:cover;background:#fff}
.gal-thumbs img.on{border-color:var(--orange)}
.d-info h1{font-size:1.7rem;color:var(--navy);margin-bottom:10px}
.d-price{color:var(--red);font-weight:800;font-size:1.7rem;margin-bottom:6px}
.d-meta{font-size:.85rem;color:var(--muted);margin-bottom:16px}
.d-box{border:1px solid var(--gray-2);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.d-box h4{font-size:.9rem;margin-bottom:10px;color:var(--navy)}
.sizes{display:flex;gap:8px;flex-wrap:wrap}
.sizes button{border:1px solid var(--gray-2);background:#fff;border-radius:10px;min-width:46px;padding:9px 6px;cursor:pointer;font-weight:700;font-family:inherit}
.sizes button.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.qty{display:inline-flex;align-items:center;border:1px solid var(--gray-2);border-radius:10px;overflow:hidden}
.qty button{width:38px;height:38px;border:none;background:var(--gray);font-size:1.1rem;cursor:pointer;font-family:inherit}
.qty input{width:56px;height:38px;border:none;text-align:center;font-family:inherit;font-weight:700}
.d-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.d-note{background:#fff7f0;border:1px solid #ffd9bd;border-radius:10px;padding:12px;font-size:.86rem;margin-top:16px;color:#8a4b1d}
.trust{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px;font-size:.85rem;color:var(--muted)}
.tabs{margin-top:10px}
.tabs .tab-btns{display:flex;gap:8px;border-bottom:2px solid var(--gray-2);flex-wrap:wrap}
.tabs .tab-btns button{border:none;background:none;font-family:inherit;font-weight:700;padding:12px 16px;cursor:pointer;color:var(--muted)}
.tabs .tab-btns button.on{color:var(--navy);border-bottom:3px solid var(--orange);margin-bottom:-2px}
.tabs .tab-pane{display:none;padding:18px 0;font-size:.95rem}
.tabs .tab-pane.on{display:block}
.tabs .tab-pane ul{margin:8px 0 8px 20px}
/* CART */
.cart-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:start}
.cart-tb{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--gray-2);border-radius:var(--radius);overflow:hidden}
.cart-tb th{background:var(--gray);text-align:left;padding:12px;font-size:.85rem;color:var(--navy)}
.cart-tb td{padding:12px;border-top:1px solid var(--gray-2);vertical-align:middle;font-size:.92rem}
.cart-it{display:flex;gap:12px;align-items:center}
.cart-it img{width:64px;height:64px;object-fit:cover;border-radius:10px;background:var(--gray)}
.rm{background:none;border:none;color:var(--red);cursor:pointer;font-size:1.1rem}
.sum{background:#fff;border:1px solid var(--gray-2);border-radius:var(--radius);padding:18px;position:sticky;top:90px}
.sum h3{color:var(--navy);margin-bottom:12px;font-size:1.1rem}
.sum-row{display:flex;justify-content:space-between;padding:8px 0;font-size:.95rem}
.sum-row.total{border-top:2px solid var(--gray-2);margin-top:8px;padding-top:12px;font-weight:800;font-size:1.15rem;color:var(--red)}
.empty{text-align:center;padding:50px 20px;color:var(--muted)}
/* FORM */
.fld{margin-bottom:14px}
.fld label{display:block;font-size:.85rem;font-weight:700;margin-bottom:6px;color:var(--navy)}
.fld input,.fld select,.fld textarea{width:100%;font-family:inherit;font-size:.95rem;padding:11px 12px;border:1px solid var(--gray-2);border-radius:10px;background:#fff}
.fld .hint{font-size:.78rem;color:var(--muted);margin-top:5px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.note-box{background:#fff7f0;border:1px solid #ffd9bd;border-radius:10px;padding:12px;font-size:.87rem;color:#8a4b1d;margin:10px 0}
.stat{font-size:.92rem;margin-top:10px;font-weight:600}
/* BLOG */
.post-card{background:#fff;border:1px solid var(--gray-2);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.post-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.post-card .pc-b{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-card h3{color:var(--navy);font-size:1.05rem;line-height:1.4}
.post-card .dt{font-size:.78rem;color:var(--muted)}
.post-card p{font-size:.9rem;color:var(--muted)}
.post{max-width:820px;margin:0 auto;font-size:1.02rem}
.post h1{font-size:2rem;color:var(--navy);margin-bottom:10px;line-height:1.25}
.post .dt{color:var(--muted);font-size:.85rem;margin-bottom:20px}
.post h2{font-size:1.35rem;color:var(--navy);margin:26px 0 10px}
.post h3{font-size:1.1rem;color:var(--navy);margin:20px 0 8px}
.post p{margin-bottom:12px}
.post ul,.post ol{margin:0 0 14px 22px}
.post li{margin-bottom:6px}
.post img{border-radius:var(--radius);margin:16px 0}
.post blockquote{border-left:4px solid var(--orange);background:var(--gray);padding:12px 16px;border-radius:10px;margin:16px 0;font-style:italic}
.post table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.92rem}
.post table th,.post table td{border:1px solid var(--gray-2);padding:9px 10px;text-align:left}
.post table th{background:var(--gray);color:var(--navy)}
/* INFO PAGES */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--gray-2);border-radius:var(--radius);padding:20px}
.card h3{color:var(--navy);margin-bottom:10px;font-size:1.05rem}
.card p,.card li{font-size:.92rem;color:var(--muted)}
.card ul{margin-left:18px}
.store{background:#fff;border:1px solid var(--gray-2);border-radius:var(--radius);padding:18px}
.store h4{color:var(--navy);font-size:1rem;margin-bottom:8px}
.store p{font-size:.88rem;color:var(--muted);margin-bottom:4px}
.cta-band{background:var(--navy);color:#fff;border-radius:var(--radius);padding:34px;text-align:center}
.cta-band h2{font-size:1.6rem;margin-bottom:10px}
.cta-band p{opacity:.9;margin-bottom:18px}
/* FOOTER */
footer{background:var(--navy);color:#fff;margin-top:40px;padding:46px 0 20px}
.ft-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:26px}
.ft-grid h4{font-size:1rem;margin-bottom:12px;color:#ffcf9e}
.ft-grid a{display:block;color:#d7dce8;font-size:.9rem;padding:3px 0}
.ft-grid a:hover{color:var(--orange-2)}
.ft-grid p{color:#c6cddb;font-size:.9rem}
.ft-bot{border-top:1px solid rgba(255,255,255,.15);margin-top:28px;padding-top:16px;font-size:.82rem;color:#b9c1d1;text-align:center}
/* FLOATING */
.float{position:fixed;right:16px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:300}
.float a,.float button{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,.25);border:none;cursor:pointer;position:relative}
.f-zalo{background:#0068ff}.f-msg{background:#0084ff}.f-top{background:var(--navy);color:#fff;font-size:1.2rem}
.float .lbl{position:absolute;right:62px;background:var(--navy);color:#fff;font-size:.78rem;padding:6px 10px;border-radius:8px;white-space:nowrap;opacity:0;pointer-events:none;transition:.2s}
.float a:hover .lbl,.float button:hover .lbl{opacity:1}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:26px;background:var(--navy);color:#fff;padding:12px 22px;
  border-radius:30px;font-weight:700;z-index:400;opacity:0;pointer-events:none;transition:.25s}
.toast.on{opacity:1;bottom:40px}
/* RESPONSIVE */
@media(max-width:1080px){.grid{grid-template-columns:repeat(3,1fr)}.ft-grid{grid-template-columns:1fr 1fr}}
@media(max-width:900px){
  .menu{display:none;position:absolute;top:66px;left:0;right:0;background:var(--navy);flex-direction:column;padding:16px;gap:12px}
  .menu.open{display:flex}
  .burger{display:block}
  .hero h1{font-size:1.9rem}
  .detail{grid-template-columns:1fr;gap:24px}
  .cart-wrap{grid-template-columns:1fr}
  .info-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .row2{grid-template-columns:1fr}
  .hd-hl{display:none}
}
@media(max-width:620px){
  .grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .grid-3{grid-template-columns:1fr}
  .prd-body h3{font-size:.9rem;min-height:38px}
  .prd-btns{flex-direction:column}
  .sec{padding:38px 0}
  .topbar .container{height:auto;padding:6px 20px;justify-content:center}
}