/* ===================== SaleToBuy · styles ===================== */
:root{
  --teal:#e8622a; --teal-600:#e2620f; --teal-500:#ff7a1a; --teal-300:#ffc199;
  --ink:#15294c; --slate:#42556b; --muted:#6f7f96;
  --bg:#f6f7fb; --card:#ffffff; --line:#e5e9f1;
  --amber:#f59e0b; --gold:#ffd166; --coral:#ff6b6b; --green:#12805c;
  --shadow:0 6px 24px rgba(11,43,47,.08); --shadow-lg:0 18px 48px rgba(11,43,47,.16);
  --radius:16px; --radius-sm:11px;
  --font:'Poppins','Segoe UI',system-ui,-apple-system,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;font-family:inherit;font-weight:600;
  padding:12px 22px;border-radius:999px;font-size:.95rem;transition:transform .15s,box-shadow .15s,background .2s;text-align:center}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,var(--teal-500),var(--teal-600));color:#fff;box-shadow:0 8px 20px rgba(12,107,116,.28)}
.btn-primary:hover{box-shadow:0 12px 26px rgba(12,107,116,.4)}
.btn-ghost{background:#fff1e8;color:var(--teal-600)}
.btn-ghost:hover{background:#ffe4d3}
.btn-amber{background:linear-gradient(135deg,#ffbf3c,var(--amber));color:#3b2600;box-shadow:0 8px 20px rgba(245,158,11,.32)}
.btn-buy{background:linear-gradient(135deg,#18b76b,var(--green));color:#fff;box-shadow:0 8px 20px rgba(18,128,92,.34)}
.btn-buy:hover{box-shadow:0 12px 26px rgba(18,128,92,.46)}
.btn-lg{padding:14px 30px;font-size:1.05rem}
.btn-block{width:100%;justify-content:center}
.btn-sm{padding:8px 15px;font-size:.85rem}
.btn-danger{background:#fdecec;color:#c0392b}
.btn-danger:hover{background:#fbdada}

/* ---------- announcement ---------- */
.announce{background:var(--ink);color:#dbe7f6;font-size:.82rem;text-align:center;padding:8px 12px;letter-spacing:.02em}
.announce b{color:var(--gold)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;height:70px}
.brand img{height:36px;width:auto}
.main-nav{display:flex;gap:4px;margin-left:6px;flex:1}
.main-nav a{padding:9px 13px;border-radius:9px;font-size:.92rem;font-weight:500;color:var(--slate);transition:background .15s,color .15s}
.main-nav a:hover,.main-nav a.active{background:#fff1e8;color:var(--teal-600)}
.header-actions{display:flex;align-items:center;gap:10px}
.search-form{display:flex;align-items:center;background:#fff1e8;border-radius:999px;padding:7px 8px 7px 15px}
.search-form input{border:0;background:transparent;outline:none;font-family:inherit;font-size:.9rem;width:150px;color:var(--ink)}
.search-form button{border:0;background:var(--teal-500);color:#fff;width:32px;height:32px;border-radius:50%;cursor:pointer;font-size:.9rem}
.icon-link{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:#fff1e8;color:var(--teal-600);font-size:1.05rem}
.menu-toggle{display:none;place-items:center;align-items:center;justify-content:center;background:#fff1e8;border:0;border-radius:10px;width:42px;height:42px;font-size:1.3rem;line-height:1;padding:0;cursor:pointer;color:var(--teal-600)}

/* ---------- hero carousel ---------- */
.hero{position:relative;overflow:hidden;border-radius:0 0 30px 30px}
.hero-track{position:relative;height:440px}
.slide{position:absolute;inset:0;opacity:0;transform:scale(1.06);transition:opacity 1s ease,transform 6s ease;display:flex;align-items:center}
.slide.active{opacity:1;transform:scale(1)}
.slide-bg{position:absolute;inset:0;z-index:0}
.slide-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,32,35,.78) 0%,rgba(6,32,35,.35) 55%,rgba(6,32,35,.05) 100%)}
.slide .container{position:relative;z-index:1}
.slide-content{max-width:560px;color:#fff}
.slide-kicker{display:inline-block;background:rgba(255,209,102,.2);color:var(--gold);border:1px solid rgba(255,209,102,.5);
  padding:5px 14px;border-radius:999px;font-size:.78rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}
.slide-content h1{font-size:2.9rem;line-height:1.08;margin:0 0 14px;font-weight:800;letter-spacing:-.02em}
.slide-content p{font-size:1.08rem;color:#dcefee;margin:0 0 26px;max-width:460px}
.slide-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:9px;z-index:3}
.hero-dots button{width:11px;height:11px;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer;transition:.2s;padding:0}
.hero-dots button.active{background:var(--gold);width:28px;border-radius:999px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:46px;height:46px;border-radius:50%;
  background:rgba(255,255,255,.18);border:0;color:#fff;font-size:1.3rem;cursor:pointer;backdrop-filter:blur(4px);transition:background .2s}
.hero-arrow:hover{background:rgba(255,255,255,.34)}
.hero-arrow.prev{left:22px}.hero-arrow.next{right:22px}

/* ---------- section ---------- */
.section{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:26px;gap:16px;flex-wrap:wrap}
.section-head h2{font-size:1.7rem;margin:0;font-weight:750;letter-spacing:-.01em}
.section-head .eyebrow{color:var(--teal-500);font-weight:600;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 4px}
.section-head p.sub{color:var(--muted);margin:6px 0 0;font-size:.95rem}
.see-all{color:var(--teal-600);font-weight:600;font-size:.9rem;white-space:nowrap}

/* ---------- product grid & card ---------- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);
  display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card-media{position:relative;aspect-ratio:1/1;overflow:hidden;background:#eef1f7}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card-media img{transform:scale(1.07)}
.card-badges{position:absolute;top:12px;left:12px;display:flex;flex-direction:column;gap:7px;z-index:2}
.badge{font-size:.72rem;font-weight:700;padding:5px 10px;border-radius:999px;letter-spacing:.02em}
.badge-sale{background:var(--coral);color:#fff}
.badge-coupon{background:var(--gold);color:#4a3200}
.badge-feat{background:var(--teal-600);color:#fff}
.card-body{padding:16px 16px 18px;display:flex;flex-direction:column;flex:1}
.card-brand{font-size:.74rem;text-transform:uppercase;letter-spacing:.07em;color:var(--teal-500);font-weight:600}
.card-title{font-size:1rem;font-weight:650;margin:4px 0 8px;color:var(--ink);line-height:1.3}
.stars{color:var(--gold);font-size:.85rem;letter-spacing:1px}
.stars .count{color:var(--muted);font-size:.78rem;margin-left:5px}
.card-price{display:flex;align-items:baseline;gap:8px;margin:10px 0 14px}
.price-now{font-size:1.2rem;font-weight:750;color:var(--ink)}
.price-was{font-size:.9rem;color:var(--muted);text-decoration:line-through}
.card .btn{margin-top:auto}

/* ---------- product row carousel ---------- */
.prow{position:relative}
.prow-track{display:flex;gap:22px;overflow-x:auto;scroll-behavior:smooth;scroll-snap-type:x proximity;
  padding:6px 2px 14px;-ms-overflow-style:none;scrollbar-width:none}
.prow-track::-webkit-scrollbar{display:none}
.prow-track .card{flex:0 0 272px;scroll-snap-align:start}
.prow-arrow{position:absolute;top:42%;transform:translateY(-50%);z-index:4;width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--teal-600);font-size:1.5rem;cursor:pointer;
  box-shadow:var(--shadow-lg);display:grid;place-items:center;transition:background .15s,transform .15s;line-height:1}
.prow-arrow:hover{background:var(--teal-500);color:#fff;transform:translateY(-50%) scale(1.06)}
.prow-arrow.prev{left:-18px}
.prow-arrow.next{right:-18px}
@media(max-width:640px){
  .prow-track .card{flex:0 0 78%}
  .prow-arrow{display:none}
}

/* ---------- coupon auto-deduct line ---------- */
.coupon-deal{margin-top:12px;background:#eafaf0;border-radius:11px;padding:11px 14px;color:var(--ink);font-size:1rem}
.coupon-deal b{color:var(--green);font-size:1.25rem;margin:0 4px}
.coupon-deal .cd-was{color:var(--muted);text-decoration:line-through;margin-left:4px}
.coupon-deal .cd-off{display:inline-block;background:var(--green);color:#fff;font-size:.76rem;font-weight:700;padding:3px 9px;border-radius:999px;margin-left:8px}

/* ---------- customer reviews ---------- */
.cr-summary{display:grid;grid-template-columns:200px 1fr;gap:30px;align-items:center;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px 28px;margin-top:8px}
.cr-score{text-align:center;border-right:1px solid var(--line);padding-right:20px}
.cr-big{font-size:3rem;font-weight:800;line-height:1;color:var(--ink)}
.cr-stars{color:var(--gold);letter-spacing:2px}
.cr-stars.big{font-size:1.3rem;margin:6px 0}
.cr-count{color:var(--muted);font-size:.85rem}
.cr-bars{display:flex;flex-direction:column;gap:7px}
.cr-bar{display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--muted)}
.cr-bar span{width:26px}
.cr-bar i{flex:1;height:9px;background:#e7f0f0;border-radius:999px;overflow:hidden;display:block}
.cr-bar i b{display:block;height:100%;background:var(--gold);border-radius:999px}
.cr-bar em{width:20px;text-align:right;font-style:normal}
.cr-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:18px}
.cr-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 22px}
.cr-head{display:flex;gap:12px;align-items:center;margin-bottom:10px}
.cr-avatar{width:44px;height:44px;border-radius:50%;color:#fff;font-weight:700;display:grid;place-items:center;font-size:.95rem;flex-shrink:0}
.cr-name{font-weight:650;font-size:.95rem;color:var(--ink)}
.cr-verified{display:inline-block;font-size:.7rem;font-weight:600;color:var(--green);background:#eafaf0;padding:2px 8px;border-radius:999px;margin-left:4px}
.cr-card .cr-stars{font-size:.9rem}
.cr-date{color:var(--muted);font-size:.78rem;margin-left:6px;letter-spacing:normal}
.cr-title{font-weight:650;color:var(--ink);margin-bottom:5px}
.cr-body{color:var(--slate);font-size:.94rem;margin:0}
@media(max-width:640px){
  .cr-grid{grid-template-columns:1fr}
  .cr-summary{grid-template-columns:1fr;gap:18px}
  .cr-score{border-right:0;border-bottom:1px solid var(--line);padding:0 0 16px}
}

/* ---------- category tiles ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.cat-tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px 14px;text-align:center;
  box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.cat-tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.cat-emoji{font-size:1.9rem;display:block;margin-bottom:8px}
.cat-tile .n{font-weight:650;font-size:.95rem}
.cat-tile .c{color:var(--muted);font-size:.8rem}

/* ---------- banner strip ---------- */
.value-strip{background:linear-gradient(120deg,var(--teal-600),var(--teal-500));color:#fff;border-radius:22px;padding:40px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:26px;box-shadow:var(--shadow-lg)}
.value-item{display:flex;gap:14px;align-items:flex-start}
.value-item .vi-ic{font-size:1.6rem;background:rgba(255,255,255,.16);width:52px;height:52px;border-radius:14px;display:grid;place-items:center;flex-shrink:0}
.value-item h4{margin:2px 0 4px;font-size:1.05rem}
.value-item p{margin:0;color:#cdd9ee;font-size:.9rem}

/* ---------- product detail ---------- */
.breadcrumb{color:var(--muted);font-size:.88rem;padding:22px 0 0}
.breadcrumb a:hover{color:var(--teal-600)}
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:46px;padding:26px 0 10px}
.gallery-main{border-radius:var(--radius);overflow:hidden;background:#eef1f7;border:1px solid var(--line);aspect-ratio:1/1}
.gallery-main img{width:100%;height:100%;object-fit:cover}
.gallery-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.gallery-thumbs img{width:74px;height:74px;object-fit:cover;border-radius:11px;border:2px solid transparent;cursor:pointer;opacity:.75;transition:.15s}
.gallery-thumbs img:hover{opacity:1}
.gallery-thumbs img.active{border-color:var(--teal-500);opacity:1}
.pd-brand{color:var(--teal-500);font-weight:600;text-transform:uppercase;letter-spacing:.07em;font-size:.82rem}
.pd h1{font-size:2rem;margin:6px 0 10px;font-weight:780;line-height:1.15}
.pd-rating{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.pd-price{display:flex;align-items:baseline;gap:12px;margin:8px 0 20px}
.pd-price .price-now{font-size:2rem}
.pd-price .disc{background:#eafaf0;color:var(--green);font-weight:700;font-size:.82rem;padding:4px 10px;border-radius:999px}
.pd-desc{color:var(--slate);font-size:1.02rem;margin-bottom:22px}
.coupon-box{border:2px dashed var(--teal-300);background:#fff4ec;border-radius:var(--radius);padding:18px 20px;margin-bottom:20px}
.coupon-box .cb-label{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--teal-600);font-weight:700}
.coupon-row{display:flex;align-items:center;gap:12px;margin-top:8px}
.coupon-code{flex:1;font-size:1.35rem;font-weight:800;letter-spacing:.12em;color:var(--ink);background:#fff;border:1px solid var(--line);
  border-radius:11px;padding:12px 16px;text-align:center;border-style:dashed}
.coupon-note{color:var(--muted);font-size:.85rem;margin-top:9px}
.copied-tip{color:var(--green);font-weight:600;font-size:.85rem;margin-left:8px;opacity:0;transition:.2s}
.copied-tip.show{opacity:1}
.pd-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.pd-meta{margin-top:22px;border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:.88rem;display:flex;gap:22px;flex-wrap:wrap}
.review-section{padding:20px 0 10px}
.review-section h2{font-size:1.4rem;margin-bottom:6px}
.review-content{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 30px;box-shadow:var(--shadow);color:var(--slate);font-size:1.02rem}
.review-content p{margin:0 0 14px}
.review-content h3{color:var(--ink);margin:20px 0 8px;font-size:1.15rem}
.review-content ul{margin:0 0 14px;padding-left:20px}

/* ---------- page heading ---------- */
.page-hero{background:linear-gradient(120deg,var(--teal-600),var(--teal-500));color:#fff;padding:46px 0;border-radius:0 0 26px 26px}
.page-hero h1{margin:0;font-size:2.1rem;font-weight:780}
.page-hero p{margin:8px 0 0;color:#cdd9ee}
.empty{text-align:center;padding:70px 20px;color:var(--muted)}
.empty .em{font-size:3rem;display:block;margin-bottom:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#c6dedd;margin-top:60px;padding:52px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;margin-bottom:34px}
.site-footer img{height:34px;margin-bottom:14px}
.site-footer h5{color:#fff;font-size:.95rem;margin:0 0 14px;letter-spacing:.02em}
.site-footer a{display:block;color:#9fb0c9;font-size:.9rem;padding:5px 0;transition:color .15s}
.site-footer a:hover{color:var(--gold)}
.footer-about p{color:#9fb0c9;font-size:.9rem;max-width:280px}
.footer-social{display:flex;gap:10px;margin-top:14px}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center;font-size:1rem;padding:0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;color:#7e90b0;font-size:.83rem}
.footer-bottom .disc{max-width:760px;margin:0 auto 8px;font-size:.78rem;color:#6b9291}

/* ===================== admin ===================== */
.admin-body{background:#eef1f7}
.admin-topbar{background:var(--ink);color:#fff;padding:0}
.admin-topbar .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.admin-topbar .brand{display:flex;align-items:center;gap:12px;font-weight:700}
.admin-topbar .brand img{height:30px}
.admin-topbar .tb-tag{background:var(--teal-500);font-size:.7rem;padding:3px 9px;border-radius:6px;letter-spacing:.05em}
.admin-topbar a{color:#b9c6df;font-size:.9rem}
.admin-topbar a:hover{color:#fff}
.admin-wrap{max-width:1100px;margin:34px auto;padding:0 20px}
.admin-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;gap:14px;flex-wrap:wrap}
.admin-head h1{font-size:1.6rem;margin:0}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;box-shadow:var(--shadow)}
.stat .s-n{font-size:1.8rem;font-weight:780;color:var(--teal-600)}
.stat .s-l{color:var(--muted);font-size:.85rem}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
table.admin-table{width:100%;border-collapse:collapse}
.admin-table th{text-align:left;font-size:.76rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:14px 16px;border-bottom:1px solid var(--line);background:#f5f7fb}
.admin-table td{padding:13px 16px;border-bottom:1px solid var(--line);font-size:.92rem;vertical-align:middle}
.admin-table tr:last-child td{border-bottom:0}
.admin-table .thumb{width:46px;height:46px;border-radius:9px;object-fit:cover;background:#eef1f7}
.admin-table .row-actions{display:flex;gap:8px;justify-content:flex-end}
.tag{display:inline-block;font-size:.72rem;padding:3px 9px;border-radius:999px;background:#fff1e8;color:var(--teal-600);font-weight:600}
.tag.on{background:#eafaf0;color:var(--green)}

/* forms */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 30px;max-width:820px;margin:0 auto}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:16px;display:flex;flex-direction:column}
.field.full{grid-column:1/-1}
.field label{font-size:.85rem;font-weight:600;color:var(--slate);margin-bottom:6px}
.field .hint{font-size:.78rem;color:var(--muted);font-weight:400}
.field input,.field select,.field textarea{font-family:inherit;font-size:.95rem;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:#fbfdfd;outline:none;transition:border .15s,box-shadow .15s;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--teal-500);box-shadow:0 0 0 3px rgba(18,163,173,.12)}
.field textarea{resize:vertical;min-height:120px}
.check{flex-direction:row;align-items:center;gap:9px}
.check input{width:18px;height:18px}
.form-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:10px;padding-top:18px;border-top:1px solid var(--line)}
.img-manage{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.img-manage figure{margin:0;position:relative;width:110px}
.img-manage img{width:110px;height:110px;object-fit:cover;border-radius:11px;border:1px solid var(--line)}
.img-manage .del-img{position:absolute;top:-8px;right:-8px;background:var(--coral);color:#fff;border:0;width:26px;height:26px;border-radius:50%;cursor:pointer;font-size:.9rem;box-shadow:var(--shadow)}
.dropzone{border:2px dashed var(--teal-300);border-radius:12px;padding:22px;text-align:center;color:var(--muted);background:#fff8f2;cursor:pointer;transition:.15s}
.dropzone:hover{background:#fff1e8;border-color:var(--teal-500)}
.dropzone.drag{background:#ffe4d3;border-color:var(--teal-500)}
.preview-list{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.preview-list img{width:84px;height:84px;object-fit:cover;border-radius:9px;border:1px solid var(--line)}

/* login */
.login-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#e2620f,#15294c);padding:20px}
.login-card{background:#fff;border-radius:20px;box-shadow:var(--shadow-lg);padding:38px 36px;width:100%;max-width:400px;text-align:center}
.login-card img{height:40px;margin:0 auto 8px}
.login-card h1{font-size:1.35rem;margin:6px 0 4px}
.login-card p.s{color:var(--muted);font-size:.9rem;margin:0 0 22px}
.login-card .field{text-align:left}
.alert{background:#fdecec;color:#c0392b;border-radius:10px;padding:11px 14px;font-size:.88rem;margin-bottom:16px}
.flash{position:fixed;top:80px;right:24px;background:var(--green);color:#fff;padding:13px 20px;border-radius:12px;box-shadow:var(--shadow-lg);z-index:100;font-weight:600;font-size:.9rem;animation:flashIn .3s}
@keyframes flashIn{from{transform:translateX(30px);opacity:0}to{transform:translateX(0);opacity:1}}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .cat-grid{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .pd{grid-template-columns:1fr;gap:26px}
  .main-nav{display:none}
  .menu-toggle{display:grid}
  .value-strip{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .grid,.grid-3{grid-template-columns:repeat(2,1fr);gap:14px}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .slide-content h1{font-size:2rem}
  .hero-track{height:400px}
  .search-form{display:none}
  .form-grid{grid-template-columns:1fr}
  .section{padding:40px 0}
  .footer-grid{grid-template-columns:1fr}
  .hero-arrow{display:none}
}
/* mobile nav drawer */
.mobile-nav{display:none;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:8px 20px 16px}
.mobile-nav.open{display:flex}
.mobile-nav a{padding:11px 8px;border-radius:9px;font-weight:500;color:var(--slate);border-bottom:1px solid var(--line)}

/* ===================== mobile + search suggest + file chip ===================== */
.m-search{display:flex;align-items:center;gap:8px;background:#fff1e8;border-radius:999px;padding:8px 8px 8px 16px;margin:6px 0 10px}
.m-search input{flex:1;border:0;background:transparent;outline:none;font-family:inherit;font-size:1rem;color:var(--ink);min-width:0}
.m-search button{border:0;background:var(--teal-500);color:#fff;width:38px;height:38px;border-radius:50%;font-size:1.1rem;cursor:pointer;flex-shrink:0}

.buybar{display:none}
.buybar-info{flex:1;min-width:0}
.buybar-price{font-size:1.35rem;font-weight:800;color:var(--ink);line-height:1.05}
.buybar-note{font-size:.72rem;color:var(--green);font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.file-chip{display:inline-flex;align-items:center;gap:6px;background:#fff1e8;border:1px solid var(--teal-300);
  color:var(--teal-600);font-weight:600;font-size:.88rem;padding:9px 14px;border-radius:10px;word-break:break-all}

.search-suggest{display:none;position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:80;
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);overflow:hidden;max-height:70vh;overflow-y:auto}
.search-suggest.open{display:block}
.header-actions .search-suggest{left:auto;right:0;width:340px}
.ss-item{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line)}
.ss-item:hover{background:#fff4ec}
.ss-item img{width:44px;height:44px;border-radius:9px;object-fit:cover;background:#eef1f7;flex-shrink:0}
.ss-txt{display:flex;flex-direction:column;flex:1;min-width:0}
.ss-txt b{font-size:.92rem;font-weight:650;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ss-txt i{font-style:normal;font-size:.74rem;color:var(--teal-500);text-transform:uppercase;letter-spacing:.04em}
.ss-price{font-weight:750;color:var(--ink);font-size:.92rem;white-space:nowrap}
.ss-all{display:block;padding:11px 14px;text-align:center;font-weight:600;font-size:.85rem;color:var(--teal-600);background:#f5f7fb}
.ss-all:hover{background:#fff1e8}
.ss-empty{padding:16px 14px;color:var(--muted);font-size:.9rem;text-align:center}

@media(max-width:640px){
  .container{padding:0 16px}
  .announce{font-size:.72rem;padding:7px 12px;line-height:1.35}
  .header-inner{height:62px;gap:12px}
  .brand img{height:32px}
  .header-actions{margin-left:auto}
  .hero{border-radius:0 0 22px 22px}
  .hero-track{height:360px}
  .slide-content{max-width:100%}
  .slide-kicker{margin-bottom:12px;font-size:.72rem}
  .slide-content h1{font-size:1.72rem;line-height:1.12;margin-bottom:10px}
  .slide-content p{font-size:.96rem;margin-bottom:18px}
  .slide-cta{gap:10px}
  .slide-cta .btn{padding:11px 18px;font-size:.9rem}
  .hero-dots{bottom:14px}
  .section-head h2{font-size:1.35rem}
  .section-head{margin-bottom:18px}
  .section-head .eyebrow{font-size:.74rem}
  .value-strip{padding:26px 22px;gap:18px;border-radius:18px}
  .grid,.grid-3{grid-template-columns:1fr;gap:16px}
  .card{flex-direction:row}
  .card-media{width:132px;flex-shrink:0;aspect-ratio:auto;height:auto}
  .card-media img{height:100%}
  .card-body{padding:12px 14px}
  .card-title{font-size:.98rem}
  .card .btn-block{margin-top:10px}
  .prow-track .card{flex-direction:column;flex:0 0 78%}
  .prow-track .card-media{width:100%;aspect-ratio:1/1;height:auto}
  .pd{padding:18px 0 6px}
  .pd h1{font-size:1.5rem;line-height:1.18}
  .pd-price .price-now{font-size:1.6rem}
  .gallery-thumbs img{width:62px;height:62px}
  .coupon-row{flex-wrap:wrap}
  .coupon-code{flex:1 1 100%;font-size:1.2rem}
  .coupon-row .btn{flex:1}
  .coupon-deal{font-size:.92rem}
  .review-content{padding:20px 18px;font-size:.96rem}
  .breadcrumb{font-size:.8rem}
  .cr-card{padding:16px 16px}
  .page-hero{padding:32px 0;border-radius:0 0 20px 20px}
  .page-hero h1{font-size:1.6rem}
  .buybar{display:flex;align-items:center;gap:12px;position:fixed;left:0;right:0;bottom:0;z-index:60;
    background:#fff;border-top:1px solid var(--line);
    padding:9px 14px calc(9px + env(safe-area-inset-bottom,0px));box-shadow:0 -6px 20px rgba(21,41,76,.16)}
  .buybar .btn-buy{flex:0 0 auto;padding:13px 24px;font-size:1rem}
  body.has-buybar{padding-bottom:76px}
}
@media(max-width:380px){
  .slide-content h1{font-size:1.5rem}
  .card-media{width:112px}
  .buybar .btn-buy{padding:12px 18px}
  .buybar-price{font-size:1.2rem}
}