:root{
  --navy:#061426;--navy2:#0a2440;--green:#11b89a;--green2:#0fa982;
  --ink:#102033;--muted:#64748b;--line:#dfe7ef;--soft:#f4f7fa;--white:#fff;
  --shadow:0 18px 55px rgba(5,20,38,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,Helvetica,sans-serif;background:#f6f8fb;color:var(--ink)}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
.container{width:min(1450px,calc(100% - 36px));margin:auto}
.topbar{background:linear-gradient(90deg,#07182c,#051426);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 6px 22px rgba(0,0,0,.18)}
.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;flex-direction:column;line-height:1}
.brand strong{font-size:34px;font-weight:950;letter-spacing:-1.5px}
.brand strong span{color:var(--green)}
.brand small{margin-top:5px;color:#d8e6f2;font-size:14px}
.navlinks{display:flex;align-items:center;gap:25px;font-weight:800}
.navlinks a:hover{color:#7be0cf}
.actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;padding:13px 18px;font-weight:900;border:1px solid transparent;cursor:pointer}
.btn-green{background:linear-gradient(180deg,var(--green),var(--green2));color:#fff;box-shadow:0 10px 25px rgba(17,184,154,.22)}
.btn-dark{background:rgba(255,255,255,.05);color:#fff;border-color:rgba(255,255,255,.28)}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-danger{background:#dc2626;color:#fff}
.page-hero{background:linear-gradient(135deg,#061426,#0a2d4d 62%,#0c6f78 140%);color:#fff;padding:48px 0 44px}
.page-hero h1{font-size:clamp(34px,4vw,58px);margin:0 0 10px;letter-spacing:-1.5px}
.page-hero p{margin:0;color:#dce8f2;font-size:18px;max-width:780px;line-height:1.55}
.page{padding:36px 0 64px}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 12px 32px rgba(15,35,55,.07)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;font-weight:850;margin-bottom:14px;color:#334155}
input,select,textarea{width:100%;margin-top:7px;border:1px solid #d7e0e8;border-radius:12px;padding:13px 14px;background:#fff;color:#102033;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(17,184,154,.12)}
textarea{min-height:150px}
.alert{padding:14px 16px;border-radius:13px;margin-bottom:16px;font-weight:800}
.alert.error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}
.alert.ok{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}
.muted{color:var(--muted)}
.price{font-size:28px;font-weight:950;color:var(--navy)}
.filterbar{display:grid;grid-template-columns:1.4fr repeat(3,1fr) auto;gap:10px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:var(--shadow);margin-top:-28px;position:relative;z-index:5}
.filterbar input,.filterbar select{margin:0;height:52px}
.filterbar .btn{height:52px}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 12px 28px rgba(15,35,55,.06);transition:.16s}
.product-card:hover{transform:translateY(-3px);box-shadow:0 18px 36px rgba(15,35,55,.11)}
.product-card img{width:100%;height:230px;object-fit:cover;background:linear-gradient(135deg,#e8edf2,#f8fafc)}
.product-body{padding:17px}
.product-body .brandline{color:#0a8c78;font-weight:950;font-size:13px;text-transform:uppercase;letter-spacing:.03em}
.product-body h2,.product-body h3{font-size:19px;margin:8px 0 9px;line-height:1.3}
.meta{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:13px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:7px 10px;background:#ecfdf5;color:#067461;font-weight:900;font-size:12px}
.detail-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(380px,.85fr);gap:24px;align-items:start}
.gallery-main{background:#fff;border:1px solid var(--line);border-radius:20px;padding:14px;box-shadow:var(--shadow)}
.gallery-main img{width:100%;max-height:620px;object-fit:contain;border-radius:14px;background:#eef2f6}
.buybox{position:sticky;top:100px}
.info-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0}
.info-item{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:12px}
.info-item span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}
.info-item strong{display:block}
.brand-grid,.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.brand-tile,.category-tile{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;text-align:center;box-shadow:0 10px 25px rgba(15,35,55,.06);transition:.16s}
.brand-tile:hover,.category-tile:hover{transform:translateY(-3px);border-color:#9adfd2}
.brand-logo{width:100px;height:100px;border-radius:50%;display:grid;place-items:center;margin:0 auto 14px;background:#fff;border:1px solid #e4eaf0;box-shadow:0 10px 22px rgba(15,35,55,.08);font-weight:950;font-size:17px}
.dashboard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 10px 28px rgba(15,35,55,.06)}
.stat .num{font-size:34px;font-weight:950;color:var(--green)}
.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 10px 28px rgba(15,35,55,.06)}
table{width:100%;border-collapse:collapse}
th,td{padding:14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
th{background:#f8fafc;color:#475569}
footer{background:#061426;color:#c7d2df;padding:34px 0;margin-top:40px}
.footer-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-grid strong{color:#fff;font-size:20px}
footer a{color:#8fe3d4}
@media(max-width:1150px){.navlinks{display:none}.product-grid{grid-template-columns:repeat(3,1fr)}.brand-grid,.category-grid{grid-template-columns:repeat(3,1fr)}.dashboard-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:850px){.detail-grid,.grid-2,.row{grid-template-columns:1fr}.product-grid{grid-template-columns:repeat(2,1fr)}.filterbar{grid-template-columns:1fr}.buybox{position:static}.actions .btn-dark{display:none}}
@media(max-width:560px){.container{width:min(100% - 22px,1450px)}.brand strong{font-size:27px}.brand small{font-size:12px}.nav{min-height:68px}.actions .btn{padding:11px 13px}.product-grid,.brand-grid,.category-grid,.dashboard-grid{grid-template-columns:1fr}.page-hero{padding:34px 0}.product-card img{height:210px}}