:root{--primary:#5347e8;--dark:#0f172a;--bg:#f4f7ff;--muted:#64748b;--card:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Segoe UI",Tahoma,Arial,sans-serif;background:linear-gradient(180deg,#f7f9ff,#eef3ff);color:var(--dark);direction:rtl}
a{text-decoration:none;color:inherit}button,input,textarea,select{font:inherit}.container{max-width:1240px;margin:auto;padding:0 24px}
.header{background:#ffffffef;backdrop-filter:blur(14px);border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:20}.header-row{min-height:86px;display:flex;align-items:center;gap:16px}.logo{width:56px;height:56px;border-radius:16px;object-fit:contain;background:white;border:1px solid #e2e8f0}.brand h2{margin:0;font-size:22px}.brand p{margin:3px 0 0;color:var(--muted)}.spacer{flex:1}
.btn{border:0;border-radius:12px;padding:11px 17px;cursor:pointer;background:var(--primary);color:white;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:7px}.btn.secondary{background:#e8edf6;color:#172033}.btn.danger{background:#dc2626}.btn.outline{background:white;color:var(--primary);border:1px solid var(--primary)}
.hero{position:relative;padding:66px 0 36px;overflow:hidden}.hero:before{content:attr(data-watermark);position:absolute;inset:0;display:grid;place-items:center;font-size:min(14vw,190px);font-weight:950;opacity:.035;transform:rotate(-16deg);pointer-events:none}.hero h1{font-size:46px;margin:0 0 12px;letter-spacing:-1px}.hero p{font-size:19px;color:var(--muted);margin:0 0 26px}.search{width:100%;height:58px;border:1px solid #d5ddec;border-radius:16px;padding:0 20px;background:#fff;box-shadow:0 10px 28px #1e293b0d}
.section{padding:24px 0 48px}.section-title{display:flex;align-items:end;justify-content:space-between;margin-bottom:20px}.section-title h1,.section-title h2{margin:0}.section-title p{color:var(--muted);margin:5px 0 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(245px,1fr));gap:20px}.card{background:var(--card);border:1px solid #dde5f2;border-radius:20px;overflow:hidden;box-shadow:0 12px 35px #0f172a0d;transition:.2s}.card:hover{transform:translateY(-5px);box-shadow:0 18px 42px #0f172a18}.card-img{width:100%;height:210px;object-fit:cover;background:linear-gradient(135deg,#e9edff,#f8fafc)}.card-body{padding:18px}.card-title{font-size:19px;font-weight:900;margin:0 0 6px}.muted{color:var(--muted)}.price{font-size:24px;font-weight:950;color:var(--primary)}.old{text-decoration:line-through;color:#94a3b8;margin-right:8px}.badge{display:inline-block;border-radius:999px;padding:5px 10px;background:#dcfce7;color:#166534;font-size:12px;font-weight:800}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.between{justify-content:space-between}
.breadcrumb{padding:20px 0;color:var(--muted)}.empty{padding:40px;background:white;border-radius:18px;text-align:center;color:var(--muted)}
.product-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;background:#fff;border:1px solid #e2e8f0;border-radius:24px;padding:24px}.main-photo{width:100%;height:470px;object-fit:contain;background:#f8fafc;border-radius:18px}.thumbs{display:flex;gap:10px;margin-top:12px;overflow:auto}.thumb{width:76px;height:76px;object-fit:cover;border:2px solid transparent;border-radius:12px;cursor:pointer}.thumb.active{border-color:var(--primary)}.specs{white-space:pre-wrap;background:#f8fafc;border-radius:14px;padding:16px;line-height:1.8}
.admin{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{background:#0f172a;color:white;padding:24px;position:sticky;top:0;height:100vh}.sidebar h2{margin-top:0}.sidebar .btn{width:100%;margin:6px 0}.main{padding:30px}.panel{background:white;border:1px solid #e2e8f0;border-radius:18px;padding:22px}
table{width:100%;border-collapse:collapse;background:white;border-radius:15px;overflow:hidden}th,td{padding:13px;border-bottom:1px solid #e5e7eb;text-align:right}th{background:#f8fafc}.tiny-img{width:52px;height:52px;border-radius:10px;object-fit:cover;background:#eef2ff}
.modal{position:fixed;inset:0;background:#0f172ac4;z-index:50;display:grid;place-items:center;padding:20px}.modal-box{width:min(950px,96vw);max-height:92vh;overflow:auto;background:white;border-radius:22px;padding:24px}.hidden{display:none!important}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field input,.field select,.field textarea{border:1px solid #cbd5e1;border-radius:11px;padding:11px;background:white}.field textarea{min-height:100px}.preview-grid{display:flex;gap:10px;flex-wrap:wrap}.preview-grid img{width:100px;height:100px;object-fit:cover;border-radius:12px;border:1px solid #ddd}
.login{min-height:100vh;display:grid;place-items:center}.login-box{width:min(430px,92vw);background:white;border-radius:22px;padding:30px;box-shadow:0 25px 60px #0002}
@media(max-width:820px){.hero h1{font-size:34px}.product-layout{grid-template-columns:1fr}.admin{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.form-grid{grid-template-columns:1fr}.header-row{flex-wrap:wrap;padding:14px 0}}


/* V3 appearance + watermark system */
body.theme-light{
 --page-bg:#ffffff;--surface:#ffffff;--surface-2:#f7f8fb;--text:#0f172a;--muted2:#64748b;--line:#e2e8f0;
 background:#ffffff;color:var(--text)
}
body.theme-dark{
 --page-bg:#070b14;--surface:#101827;--surface-2:#111c2e;--text:#f8fafc;--muted2:#a7b2c5;--line:#263449;
 background:#070b14;color:var(--text)
}
body.theme-dark .header{background:#0b1220ef;border-color:var(--line)}
body.theme-dark .brand p,body.theme-dark .muted,body.theme-dark .breadcrumb{color:var(--muted2)}
body.theme-dark .card,body.theme-dark .panel,body.theme-dark .modal-box,body.theme-dark .login-box,body.theme-dark table,body.theme-dark .product-layout{background:var(--surface);border-color:var(--line);color:var(--text)}
body.theme-dark th{background:var(--surface-2)}
body.theme-dark th,body.theme-dark td{border-color:var(--line)}
body.theme-dark .search,body.theme-dark .field input,body.theme-dark .field select,body.theme-dark .field textarea{background:#0c1423;color:#f8fafc;border-color:#314158}
body.theme-dark .secondary{background:#263449;color:#f8fafc}
body.theme-dark .main-photo,body.theme-dark .specs,body.theme-dark .card-img{background:#0b1322}
body.theme-dark .empty{background:var(--surface);color:var(--muted2)}
body.theme-light .header{background:#fffffff2}
body.theme-light .card,body.theme-light .panel,body.theme-light .modal-box,body.theme-light .login-box,body.theme-light table,body.theme-light .product-layout{background:#fff}

.page-watermark{
 position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;
 display:grid;place-items:center;
}
.page-watermark::before{
 content:attr(data-text);position:absolute;
 font-size:clamp(70px,16vw,260px);font-weight:950;letter-spacing:8px;
 opacity:var(--wm-opacity,.055);transform:rotate(-22deg);
 white-space:nowrap;color:currentColor;
}
body.theme-dark .page-watermark{color:#ffffff}
body.theme-light .page-watermark{color:#0f172a}
body>*:not(.page-watermark){position:relative;z-index:1}

.image-watermark{position:relative;overflow:hidden}
.image-watermark::after{
 content:attr(data-watermark);position:absolute;inset:0;
 display:grid;place-items:center;text-align:center;
 font-weight:950;font-size:clamp(16px,2.2vw,32px);
 letter-spacing:2px;transform:rotate(-24deg);
 color:#fff;text-shadow:0 1px 5px #000;
 opacity:var(--img-wm-opacity,.10);pointer-events:none;
 background:repeating-linear-gradient(-24deg,transparent 0 60px,rgba(255,255,255,.03) 60px 62px);
}
.card .image-watermark{height:210px}
.card .image-watermark img{width:100%;height:100%;object-fit:cover}
.product-photo-wrap{position:relative;overflow:hidden;border-radius:18px}
.product-photo-wrap.image-watermark::after{font-size:clamp(22px,4vw,56px)}


/* V4 definitive blue-black dark theme */
body.theme-dark{
 --page-bg:#050a12;
 --surface:#0b1422;
 --surface-2:#101d30;
 --text:#f4f8ff;
 --muted2:#91a6c1;
 --line:#203451;
 background:
   radial-gradient(circle at 15% 5%,rgba(21,94,190,.22),transparent 34%),
   radial-gradient(circle at 90% 10%,rgba(0,132,255,.12),transparent 30%),
   linear-gradient(180deg,#050a12 0%,#07101d 55%,#040912 100%);
 color:var(--text);
 min-height:100vh
}
body.theme-dark .header{
 background:rgba(6,13,24,.92);
 border-color:#1c3150;
 box-shadow:0 8px 30px rgba(0,0,0,.28)
}
body.theme-dark .card{
 background:linear-gradient(180deg,#0d1828,#091321);
 border-color:#203858;
 box-shadow:0 14px 38px rgba(0,0,0,.28)
}
body.theme-dark .card:hover{border-color:#1687ff;box-shadow:0 18px 44px rgba(0,91,190,.25)}
body.theme-dark .panel,
body.theme-dark .modal-box,
body.theme-dark .login-box,
body.theme-dark table,
body.theme-dark .product-layout{
 background:linear-gradient(180deg,#0c1727,#091321);
 border-color:#203858
}
body.theme-dark th{background:#10213a;color:#dcecff}
body.theme-dark td{color:#edf5ff}
body.theme-dark .search,
body.theme-dark .field input,
body.theme-dark .field select,
body.theme-dark .field textarea{
 background:#07111f;
 color:#f4f8ff;
 border-color:#28476d;
 box-shadow:inset 0 0 0 1px rgba(22,135,255,.03)
}
body.theme-dark .search:focus,
body.theme-dark .field input:focus,
body.theme-dark .field select:focus,
body.theme-dark .field textarea:focus{
 outline:none;border-color:#1687ff;box-shadow:0 0 0 3px rgba(22,135,255,.16)
}
body.theme-dark .sidebar{
 background:linear-gradient(180deg,#050b14,#071426 55%,#040912);
 border-left:1px solid #19304d
}
body.theme-dark .btn{background:linear-gradient(135deg,#1687ff,#075ec7)}
body.theme-dark .btn.secondary{background:#14243a;color:#edf5ff;border:1px solid #28476d}
body.theme-dark .btn.outline{background:transparent;color:#65b3ff;border-color:#1687ff}
body.theme-dark .price{color:#55adff}
body.theme-dark .badge{background:#0d3b2b;color:#8ff0be}
body.theme-dark .page-watermark{color:#5daeff}
body.theme-dark .image-watermark::after{color:#d7ecff;text-shadow:0 2px 8px #000}

/* V5 FIXED: true blue-black dark theme */
body.theme-dark{
 background:
 radial-gradient(circle at 10% 0%,rgba(0,110,255,.22),transparent 32%),
 radial-gradient(circle at 95% 5%,rgba(0,155,255,.10),transparent 28%),
 linear-gradient(180deg,#03070c,#06111d 55%,#02060b);
 color:#f5f9ff;
 min-height:100vh;
}
body.theme-dark .header{background:rgba(4,10,18,.94);border-color:#183250}
body.theme-dark .card,
body.theme-dark .panel,
body.theme-dark .modal-box,
body.theme-dark .login-box,
body.theme-dark table,
body.theme-dark .product-layout{
 background:linear-gradient(180deg,#0a1625,#07111d);
 border-color:#1d3a5c;
 color:#f5f9ff;
}
body.theme-dark th{background:#0e2138;color:#ddecff}
body.theme-dark td{color:#eef6ff;border-color:#1c314d}
body.theme-dark .sidebar{background:linear-gradient(180deg,#02070d,#061425,#02060b)}
body.theme-dark .search,
body.theme-dark .field input,
body.theme-dark .field select,
body.theme-dark .field textarea{
 background:#040c16;color:#f5f9ff;border-color:#24466e;
}
body.theme-dark .search:focus,
body.theme-dark .field input:focus,
body.theme-dark .field select:focus,
body.theme-dark .field textarea:focus{
 outline:none;border-color:#1495ff;box-shadow:0 0 0 3px rgba(20,149,255,.18)
}
body.theme-dark .btn{background:linear-gradient(135deg,#1495ff,#0864c8)}
body.theme-dark .btn.secondary{background:#11243a;color:#eef6ff;border:1px solid #27496f}
body.theme-dark .card:hover{border-color:#1495ff;box-shadow:0 18px 44px rgba(0,100,210,.22)}
body.theme-dark .price{color:#61b7ff}
body.theme-dark .page-watermark{color:#69baff}