*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#0a2540;--accent:#0070f3;--accent2:#00c6a2;
  --bg:#f0f4f8;--card:#fff;--text:#1a1a2e;--muted:#6b7280;
  --border:#e2e8f0;--radius:14px;--shadow:0 4px 20px rgba(0,0,0,.08);
}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden}
html{overflow-x:hidden}

/* HEADER */
header{background:var(--primary);color:#fff;padding:0 2rem;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,.3)}
.hdr{max-width:1400px;margin:0 auto;display:flex;align-items:center;height:130px;gap:1rem}
.logo{font-size:1.4rem;font-weight:800;white-space:nowrap}
.logo-img{height:120px;vertical-align:middle}
.logo span{color:var(--accent2)}
.srch{flex:1;max-width:460px;position:relative}
.srch input{width:100%;padding:.5rem 1rem .5rem 2.4rem;border-radius:8px;border:none;background:rgba(255,255,255,.13);color:#fff;font-size:.9rem;outline:none}
.srch input::placeholder{color:rgba(255,255,255,.5)}
.srch svg{position:absolute;left:.7rem;top:50%;transform:translateY(-50%);opacity:.6}
.hbadge{background:var(--accent2);color:var(--primary);font-size:.72rem;font-weight:700;padding:.22rem .6rem;border-radius:20px;white-space:nowrap}
.hdr-auth-links{display:flex;gap:.5rem;align-items:center}
.cart-btn{position:relative;background:none;border:none;cursor:pointer;padding:.4rem;margin-right:.5rem}
.cart-btn svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:2}
.cartCount{position:absolute;top:2px;right:2px;background:#ff4444;color:#fff;font-size:.65rem;font-weight:800;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px}
.cartCount:empty,.cartCount[data-n="0"]{display:none}

/* HERO */
.hero{background:linear-gradient(135deg,#0a2540 0%,#1a3a6b 55%,#0070f3 100%);color:#fff;padding:3rem 2rem;text-align:center}
.hero h1{font-size:clamp(1.5rem,4vw,2.6rem);font-weight:800;margin-bottom:.6rem}
.hero p{opacity:.85;max-width:540px;margin:0 auto 1.2rem;font-size:1rem}
.hstats{display:flex;justify-content:center;gap:2.5rem;flex-wrap:wrap;margin-top:1.2rem}
.hstat strong{display:block;font-size:1.7rem;font-weight:800;color:var(--accent2)}
.hstat span{font-size:.78rem;opacity:.75}

/* FILTERS */
.fbar{background:var(--card);border-bottom:1px solid var(--border);padding:.8rem 2rem;position:sticky;top:130px;z-index:90}
.finner{max-width:1400px;margin:0 auto;display:flex;align-items:center;gap:.7rem;flex-wrap:wrap}
.flabel{font-size:.78rem;font-weight:600;color:var(--muted);white-space:nowrap}
.fbtn{padding:.35rem .85rem;border-radius:20px;border:1.5px solid var(--border);background:transparent;font-size:.82rem;cursor:pointer;transition:all .18s;color:var(--text)}
.fbtn:hover,.fbtn.on{background:var(--accent);border-color:var(--accent);color:#fff}
.fsort{margin-left:auto;padding:.38rem .75rem;border-radius:8px;border:1.5px solid var(--border);font-size:.82rem;background:var(--card);color:var(--text);cursor:pointer}

/* MAIN */
.main{max-width:1400px;margin:0 auto;padding:1.8rem 2rem}
.rinfo{font-size:.88rem;color:var(--muted);margin-bottom:1.2rem}
.rinfo strong{color:var(--text)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(285px,1fr));gap:1.4rem}

/* CARD */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;border:1px solid var(--border)}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 36px rgba(0,0,0,.13)}

/* IMAGE AREA */
.cimg{background:#eef2f7;height:195px;position:relative;overflow:hidden;cursor:pointer}
.cimg img{width:100%;height:100%;object-fit:contain;padding:10px;transition:transform .3s}
.card:hover .cimg img{transform:scale(1.06)}
.bstock{position:absolute;top:.65rem;right:.65rem;font-size:.68rem;font-weight:700;padding:.18rem .5rem;border-radius:20px}
.bstock.ok{background:#dcfce7;color:#166534}
.bstock.low{background:#fef9c3;color:#854d0e}
.bstock.out{background:#fee2e2;color:#991b1b}

/* BODY */
.cbody{padding:1rem;flex:1;display:flex;flex-direction:column;gap:.4rem}
.cbrand{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--accent)}
.ctitle{font-size:.9rem;font-weight:700;line-height:1.35;color:var(--text)}
.cmodel{font-size:.7rem;color:var(--muted);font-family:monospace}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:.28rem .45rem;margin-top:.3rem}
.spec{font-size:.68rem;color:var(--muted);display:flex;flex-direction:column}
.spec strong{color:var(--text);font-size:.74rem}

/* FOOTER CARD */
.cfoot{padding:.9rem 1rem;border-top:1px solid var(--border);display:flex;align-items:flex-end;justify-content:space-between;gap:.5rem}
.pmain{font-size:1.25rem;font-weight:800;color:var(--primary);line-height:1}
.pnote{font-size:.62rem;color:var(--accent2);font-weight:600;margin-top:.12rem}
.bcot{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:.5rem .9rem;font-size:.8rem;font-weight:600;cursor:pointer;transition:background .18s,transform .1s;white-space:nowrap}
.bcot:hover{background:#0058c7}
.bcot:active{transform:scale(.97)}
.bcot.added{background:#00c6a2}

/* LIGHTBOX */
.lb{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:999;align-items:center;justify-content:center;padding:1rem}
.lb.open{display:flex}
.lbbox{background:#fff;border-radius:16px;max-width:580px;width:100%;overflow:hidden;position:relative}
.lbmain{width:100%;height:340px;object-fit:contain;background:#f0f4f8;padding:12px;display:block}
.lbclose{position:absolute;top:.6rem;right:.8rem;background:rgba(0,0,0,.5);color:#fff;border:none;border-radius:50%;width:30px;height:30px;font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:2}
.lbnav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.45);color:#fff;border:none;border-radius:50%;width:34px;height:34px;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:2}
.lbnav.prev{left:.5rem}
.lbnav.next{right:.5rem}
.lbnav:disabled{opacity:.2;cursor:default}
.lbthumbs{display:flex;gap:.4rem;padding:.5rem .8rem;overflow-x:auto;background:#f8fafc}
.lbthumbs img{width:52px;height:40px;object-fit:contain;border-radius:6px;border:2px solid transparent;cursor:pointer;background:#eef2f7;flex-shrink:0}
.lbthumbs img.active{border-color:var(--accent)}
.lbinfo{padding:.8rem 1rem}
.lbinfo h3{font-size:.95rem;font-weight:700;margin-bottom:.2rem}
.lbinfo p{font-size:.8rem;color:var(--muted)}

/* NO RESULTS */
.nores{text-align:center;padding:4rem 1rem;color:var(--muted);display:none}
.nores p{font-size:1rem;margin-top:.8rem}

/* FOOTER */
footer{background:var(--primary);color:rgba(255,255,255,.6);text-align:center;padding:1.8rem;font-size:.82rem;margin-top:3rem}
footer strong{color:#fff}

/* TOAST */
.toast{position:fixed;bottom:1.5rem;right:1.5rem;background:#0a2540;color:#fff;padding:.7rem 1.1rem;border-radius:8px;font-size:.86rem;font-weight:600;box-shadow:0 4px 16px rgba(0,0,0,.25);z-index:9999;max-width:300px;line-height:1.4;animation:fadeup .3s ease}
@keyframes fadeup{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* CART OVERLAY */
.cart-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:1000;display:none}
.cart-overlay.open{display:block}

/* CART PANEL */
.cart-panel{position:fixed;top:0;right:-380px;width:380px;max-width:100%;height:100%;background:var(--card);z-index:1001;transition:right .3s ease;display:flex;flex-direction:column;box-shadow:-4px 0 24px rgba(0,0,0,.2)}
.cart-panel.open{right:0}
.cph{background:var(--primary);color:#fff;padding:1rem 1.2rem;display:flex;align-items:center;justify-content:space-between}
.cph h3{margin:0;font-size:1.1rem}
.cpclose{background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer;padding:.2rem}
.cpbody{flex:1;overflow-y:auto;padding:1rem}
.cpitem{display:flex;gap:.8rem;padding:.7rem;border-bottom:1px solid var(--border);align-items:center}
.cpitem-img{width:60px;height:45px;object-fit:contain;background:#f0f4f8;border-radius:6px;flex-shrink:0}
.cpitem-info{flex:1;min-width:0}
.cpitem-info h4{font-size:.8rem;font-weight:600;margin:0 0 .2rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cpitem-info p{font-size:.7rem;color:var(--muted);margin:0}
.cpitem-qty{display:flex;align-items:center;gap:.4rem;margin-top:.3rem}
.cpitem-qty button{width:22px;height:22px;border-radius:4px;border:1px solid var(--border);background:var(--card);font-size:.9rem;cursor:pointer;display:flex;align-items:center;justify-content:center}
.cpitem-qty button:hover{background:var(--bg)}
.cpitem-qty span{font-size:.8rem;min-width:20px;text-align:center}
.cpitem-rm{background:none;border:none;color:#ff4444;font-size:1.1rem;cursor:pointer;padding:.3rem}
.cpfoot{padding:1rem;border-top:1px solid var(--border);background:var(--card)}
.cptotal{display:flex;justify-content:space-between;align-items:center;margin-bottom:.8rem}
.cptotal span{font-size:.85rem;color:var(--muted)}
.cptotal strong{font-size:1.3rem;font-weight:800;color:var(--primary)}
.cpbtn{width:100%;padding:.7rem;background:var(--accent);color:#fff;border:none;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer}
.cpbtn:hover{background:#0058c7}
.cpempty{text-align:center;padding:2rem 1rem;color:var(--muted)}
.cpempty svg{width:48px;height:48px;opacity:.3;margin-bottom:.8rem}

/* HAMBURGER BUTTON (hidden on desktop) */
.hburger{display:none;background:none;border:none;cursor:pointer;padding:.6rem;flex-direction:column;gap:5px;align-items:center;justify-content:center;min-width:40px;min-height:40px}
.hburger span{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:transform .25s,opacity .25s}
.hburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hburger.open span:nth-child(2){opacity:0}
.hburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* MOBILE NAV DRAWER */
.mob-nav{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:var(--primary);z-index:500;flex-direction:column;padding:5rem 2rem 2rem;gap:1rem;overflow-y:auto}
.mob-nav.open{display:flex}
.mob-nav .mob-srch{position:relative;margin-bottom:.5rem}
.mob-nav .mob-srch input{width:100%;padding:.6rem 1rem .6rem 2.4rem;border-radius:8px;border:none;background:rgba(255,255,255,.13);color:#fff;font-size:1rem;outline:none}
.mob-nav .mob-srch input::placeholder{color:rgba(255,255,255,.5)}
.mob-nav .mob-srch svg{position:absolute;left:.7rem;top:50%;transform:translateY(-50%);opacity:.6}
.mob-nav-links{display:flex;flex-direction:column;gap:.5rem;margin-top:.5rem}
.mob-nav-links a{color:#fff;text-decoration:none;font-size:1.1rem;font-weight:600;padding:.9rem 0;border-bottom:1px solid rgba(255,255,255,.1)}
.mob-nav-close{position:absolute;top:1rem;right:1.2rem;background:none;border:none;color:#fff;font-size:1.8rem;cursor:pointer;padding:.3rem;line-height:1}

/* TABLET (769px – 1024px) */
@media(min-width:769px) and (max-width:1024px){
  header{padding:0 1.2rem}
  .hdr{height:70px}
  .logo-img{height:55px}
  .srch{max-width:280px}
  .hbadge{display:none}
  .hdr-auth-links{display:none}
  .hburger{display:flex}
  .fbar{top:70px}
}

@media(max-width:768px){
  /* Header */
  header{padding:0 1rem}
  .hdr{height:60px;gap:.5rem}
  .logo img{height:44px !important}
  .logo-img{height:44px}
  .srch{max-width:100%;flex:1}
  .hbadge{display:none}
  .hdr-auth-links{display:none}
  .hburger{display:flex}

  /* Filter bar sticks below 60px header */
  .fbar{top:60px;padding:.6rem 1rem;overflow-x:auto;max-width:100vw}
  .finner{flex-wrap:nowrap;gap:.5rem}
  .flabel{display:none}
  .fsort{margin-left:0;min-width:160px}

  /* Hero */
  .hero{padding:2rem 1rem}
  .hstats{gap:1rem}
  .hstat strong{font-size:1.3rem}

  /* Grid: 1 column on small screens */
  .grid{grid-template-columns:1fr}
  .main{padding:1rem}

  /* Lightbox */
  .lbmain{height:220px}
  .lbbox{border-radius:10px}

  /* Cart panel full width */
  .cart-panel{width:100%;right:-100%}

  /* Toast */
  .toast{left:1rem;right:1rem;bottom:1rem;max-width:none}
}

@media(max-width:480px){
  .grid{grid-template-columns:1fr}
  .hstats{gap:.8rem}
  .hstat strong{font-size:1.1rem}
  .hstat span{font-size:.7rem}
}