:root{
  --bg:#f4f6fa; --primary:#2563eb; --primary-dark:#1d4ed8; --primary-light:#dbeafe;
  --ink:#0f172a; --muted:#64748b; --line:#e2e8f0; --card:#ffffff; --danger:#dc2626;
  --ok:#16a34a; --warn:#d97706; --radius:14px; --sidebar-w:248px;
  --c-photo:#2563eb; --c-doca4:#0891b2; --c-idcard:#7c3aed; --c-handwriting:#ea580c;
  --c-cv:#16a34a; --c-papers:#e11d48; --bk:#e2136e;
  --font-head:'Anek Bangla','Hind Siliguri',sans-serif;
  --font-body:'Hind Siliguri','Noto Sans Bengali',sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:15px;line-height:1.6}
h1,h2,h3,h4,h5{font-family:var(--font-head);line-height:1.35;margin:0 0 10px}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--primary-light);border-color:var(--primary)}
label{font-weight:600;display:block;margin-bottom:6px}
.container{max-width:1180px;margin:0 auto;padding:0 16px}
.sk-app{display:flex;min-height:100vh}
.sk-sidebar{width:var(--sidebar-w);background:#fff;border-right:1px solid var(--line);position:fixed;top:0;bottom:0;left:0;z-index:40;display:flex;flex-direction:column;overflow-y:auto}
.sk-brand{display:flex;align-items:center;gap:10px;padding:16px;border-bottom:1px solid var(--line)}
.sk-brand img{height:38px;width:auto}
.sk-brand b{font-family:var(--font-head);font-size:19px;color:var(--ink)}
.sk-nav{padding:10px}
.sk-nav a{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:#334155;font-weight:600;margin-bottom:2px}
.sk-nav a:hover{background:var(--bg);text-decoration:none}
.sk-nav a.active{background:var(--primary-light);color:var(--primary)}
.sk-nav a svg,.sk-nav a img{width:22px;height:22px;flex:none}
.sk-nav .badge{margin-left:auto;background:var(--danger);color:#fff;font-size:11px;padding:1px 7px;border-radius:99px}
.sk-nav-sec{font-size:12px;color:var(--muted);padding:14px 12px 6px;text-transform:uppercase;letter-spacing:.04em}
.sk-main{flex:1;margin-left:var(--sidebar-w);min-width:0;display:flex;flex-direction:column}
.sk-topbar{position:sticky;top:0;z-index:30;background:var(--primary);color:#fff;display:flex;align-items:center;gap:12px;padding:10px 18px}
.sk-topbar .sk-logo-w{height:32px}
.sk-topbar .sk-search{flex:1;max-width:460px}
.sk-topbar .sk-search input{background:rgba(255,255,255,.16);border-color:transparent;color:#fff}
.sk-topbar .sk-search input::placeholder{color:rgba(255,255,255,.75)}
.sk-credit-chip{background:#fff;color:var(--primary);font-weight:700;border-radius:99px;padding:6px 14px;white-space:nowrap}
.sk-avatar{width:36px;height:36px;border-radius:50%;background:#fff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800}
.sk-content{padding:20px;max-width:1180px;width:100%;margin:0 auto}
.sk-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:0 1px 2px rgba(15,23,42,.04)}
.sk-grid{display:grid;gap:14px}
.sk-grid.tiles{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.sk-tile{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 12px;text-align:center;color:var(--ink)}
.sk-tile:hover{border-color:var(--primary);text-decoration:none;box-shadow:0 4px 14px rgba(37,99,235,.12)}
.sk-tile .ic{width:46px;height:46px;margin:0 auto 8px;display:flex;align-items:center;justify-content:center;border-radius:12px}
.sk-tile .ic svg,.sk-tile .ic img{width:30px;height:30px}
.sk-tile b{display:block;font-size:14px}
.sk-tile small{color:var(--muted)}
.sk-tile .tag{display:inline-block;margin-top:6px;font-size:11px;background:#fef3c7;color:#92400e;border-radius:99px;padding:1px 8px}
.sk-btn{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;border:0;border-radius:10px;padding:10px 18px;font-weight:700;font-size:15px}
.sk-btn:hover{background:var(--primary-dark);text-decoration:none}
.sk-btn.ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.sk-btn.green{background:var(--ok)} .sk-btn.red{background:var(--danger)}
.sk-btn.bk{background:var(--bk)} .sk-btn:disabled{opacity:.5;cursor:not-allowed}
.sk-btn.sm{padding:7px 12px;font-size:14px}
.sk-table{width:100%;border-collapse:collapse}
.sk-table th,.sk-table td{padding:10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.sk-table th{color:var(--muted);font-size:13px}
.sk-tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:16px}
.sk-tabs a,.sk-tabs button{white-space:nowrap;padding:8px 16px;border-radius:99px;border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:600}
.sk-tabs a.active,.sk-tabs button.active{background:var(--primary);color:#fff;border-color:var(--primary);text-decoration:none}
.sk-badge{display:inline-block;font-size:12px;font-weight:700;padding:2px 9px;border-radius:99px;background:var(--primary-light);color:var(--primary)}
.sk-badge.green{background:#dcfce7;color:#166534} .sk-badge.red{background:#fee2e2;color:#991b1b}
.sk-badge.amber{background:#fef3c7;color:#92400e}
.sk-alert{padding:12px 14px;border-radius:10px;margin-bottom:14px;background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af}
.sk-alert.warn{background:#fffbeb;border-color:#fde68a;color:#92400e}
.sk-alert.err{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.sk-alert.ok{background:#f0fdf4;border-color:#bbf7d0;color:#166534}
.sk-form-row{display:grid;gap:12px;grid-template-columns:1fr 1fr;margin-bottom:12px}
.sk-editor{display:grid;grid-template-columns:280px 1fr;gap:16px;align-items:start}
.sk-canvas-wrap{background:#0f172a;border-radius:12px;min-height:320px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.sk-canvas-wrap canvas,.sk-canvas-wrap img{max-width:100%;max-height:520px}
.sk-toolbar{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.sk-toolbar button{padding:8px 12px;border-radius:9px;border:1px solid var(--line);background:#fff;font-weight:600}
.sk-toolbar button.on{background:var(--primary);color:#fff;border-color:var(--primary)}
.sk-range{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.sk-range input{padding:0}
.sk-bottomnav{display:none}
.sk-auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(160deg,#1d4ed8,#2563eb 55%,#3b82f6)}
.sk-auth-card{background:#fff;border-radius:18px;padding:28px;width:100%;max-width:420px;box-shadow:0 20px 50px rgba(15,23,42,.25)}
.sk-auth-card img.logo{height:52px;display:block;margin:0 auto 10px}
.sk-hero{padding:56px 0 40px;text-align:center}
.sk-hero h1{font-size:40px}
.sk-hero p{color:var(--muted);font-size:18px}
.sk-price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.sk-price{border:2px solid var(--line);border-radius:16px;padding:20px;text-align:center;background:#fff}
.sk-price.hot{border-color:var(--primary)}
.sk-price .amt{font-size:30px;font-weight:800;color:var(--primary);font-family:var(--font-head)}
.sk-modal{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;align-items:center;justify-content:center;z-index:90;padding:16px}
.sk-modal.open{display:flex}
.sk-modal-box{background:#fff;border-radius:16px;max-width:520px;width:100%;padding:22px;max-height:88vh;overflow:auto}
.sk-toast{position:fixed;bottom:76px;left:50%;transform:translateX(-50%);background:#0f172a;color:#fff;padding:10px 18px;border-radius:99px;z-index:120;display:none;font-weight:600}
.sk-progress{height:8px;background:#e2e8f0;border-radius:99px;overflow:hidden}
.sk-progress i{display:block;height:100%;background:var(--primary)}
.sk-kv{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line)}
.sk-kv b{font-weight:700}
.sk-thumb{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px;background:linear-gradient(135deg,#dbeafe,#eff6ff)}
.sk-cat-chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:99px;padding:6px 12px;font-weight:600;margin:0 6px 8px 0}
.sk-cat-chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.sk-pagination{display:flex;gap:6px;flex-wrap:wrap;margin-top:18px}
.sk-pagination a,.sk-pagination span{padding:7px 12px;border:1px solid var(--line);border-radius:8px;background:#fff}
.sk-pagination .cur{background:var(--primary);color:#fff;border-color:var(--primary)}
.sk-footer{padding:18px;text-align:center;color:var(--muted);font-size:13px}
.sk-print-sheet{background:#fff;padding:16px;border:1px dashed var(--line);border-radius:10px}
.sk-a4{width:210mm;min-height:297mm;background:#fff;margin:0 auto;padding:14mm;box-shadow:0 2px 10px rgba(15,23,42,.12)}
.sk-idcard{width:86mm;height:54mm;border:1px solid var(--line);border-radius:8px;padding:8px;background:#fff}
.sk-hidden{display:none!important}
.sk-spin{animation:skspin 3s linear infinite}
@keyframes skspin{to{transform:rotate(360deg)}}
@media (max-width:900px){
  .sk-sidebar{display:none}
  .sk-main{margin-left:0}
  .sk-editor{grid-template-columns:1fr}
  .sk-bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);z-index:50;padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .sk-bottomnav a{flex:1;text-align:center;font-size:11px;color:#475569;font-weight:600;padding:4px 0}
  .sk-bottomnav a.active{color:var(--primary)}
  .sk-bottomnav svg,.sk-bottomnav img{width:22px;height:22px;display:block;margin:0 auto 2px}
  body{padding-bottom:64px}
  .sk-content{padding:14px}
  .sk-hero h1{font-size:28px}
  .sk-form-row{grid-template-columns:1fr}
  .sk-topbar .sk-search{display:none}
}
@media print{.sk-sidebar,.sk-topbar,.sk-bottomnav,.sk-no-print{display:none!important}.sk-main{margin:0}}
body.sk-dark{background:#0f172a;color:#e2e8f0}
body.sk-dark .sk-card,body.sk-dark .sk-sidebar,body.sk-dark .sk-tile,body.sk-dark .sk-price{background:#1e293b;border-color:#334155;color:#e2e8f0}
body.sk-dark input,body.sk-dark select,body.sk-dark textarea{background:#0f172a;color:#e2e8f0;border-color:#334155}
body.sk-dark .sk-nav a{color:#cbd5e1}