:root{--sidebar:280px;--bg:#f3f6fb;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--brand:#f97316;--dark:#111827;--card:#fff;--radius:18px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}.app-shell{display:flex;min-height:100vh}.app-sidebar{width:var(--sidebar);background:linear-gradient(180deg,#111827,#1f2937);color:#fff;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:1000}.brand-block{display:flex;gap:12px;align-items:center;padding:22px;border-bottom:1px solid rgba(255,255,255,.08)}.brand-logo{width:44px;height:44px;border-radius:14px;background:var(--brand);display:grid;place-items:center;font-weight:900;color:#111827}.brand-title{font-weight:800;line-height:1.1}.brand-subtitle{font-size:12px;opacity:.65;margin-top:3px}.nav-menu{padding:14px;flex:1}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;color:rgba(255,255,255,.78);text-decoration:none;margin-bottom:5px;font-weight:600}.nav-item i{font-size:18px}.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}.nav-item.active{background:#fff;color:#111827}.sidebar-footer{padding:14px;border-top:1px solid rgba(255,255,255,.08)}.app-main{margin-left:var(--sidebar);width:calc(100% - var(--sidebar));min-height:100vh}.app-topbar{height:78px;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:500}.app-topbar h1{font-size:22px;margin:0;font-weight:850}.topbar-muted{font-size:13px;color:var(--muted)}.topbar-actions{display:flex;align-items:center;gap:12px}.user-pill{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px 6px 6px}.avatar{width:36px;height:36px;border-radius:50%;background:#111827;color:white;display:grid;place-items:center;font-weight:800}.user-pill strong{display:block;font-size:13px}.user-pill span{display:block;font-size:12px;color:var(--muted)}.app-content{padding:28px}.page-heading{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:22px}.page-heading h2{font-size:28px;font-weight:850;margin:0}.page-heading p{color:var(--muted);margin:.25rem 0 0}.card{border:0;border-radius:var(--radius);box-shadow:0 6px 18px rgba(15,23,42,.06)}.stat-card{padding:22px}.stat-value{font-size:30px;font-weight:850}.stat-label{color:var(--muted);font-weight:600}.stat-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:24px}.table thead th{font-size:13px;color:#374151;font-weight:800;background:#f9fafb}.table td,.table th{padding:14px 18px;vertical-align:middle}.btn{border-radius:12px;font-weight:700}.form-control,.form-select{border-radius:12px;min-height:44px}.alert-soft{border-radius:16px;border:0}.toolbar-card{padding:18px}.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.empty-state{padding:46px;text-align:center;color:var(--muted)}@media(max-width:991px){.app-sidebar{transform:translateX(-100%);transition:.2s}.app-sidebar.open{transform:translateX(0)}.app-main{margin-left:0;width:100%}.app-topbar{padding:0 16px}.topbar-actions .btn{display:none}.app-content{padding:18px}.quick-grid,.content-grid{grid-template-columns:1fr}.page-heading{display:block}.user-pill div:not(.avatar){display:none}}