:root{--bg:#f5f6fa;--panel:#fff;--text:#151527;--muted:#73758b;--line:#e7e7ef;--purple:#7137f0;--purple2:#9f2fe4;--cyan:#14b8d4;--dark:#0c0820;--success:#15965a;--danger:#d54646;--shadow:0 14px 34px rgba(31,22,67,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--text);background:var(--bg)}a{text-decoration:none;color:inherit}button,input,select,textarea{font:inherit}.app-shell{min-height:100vh;display:flex}.sidebar{position:fixed;inset:0 auto 0 0;width:250px;background:linear-gradient(180deg,#10072a,#160b33 60%,#0d0821);color:#dcd7ef;padding:22px 16px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:11px}.brand img{width:38px;height:38px;object-fit:contain}.brand strong{display:block;font-size:20px;color:#fff}.brand small{display:block;color:#a99fca;font-size:11px;text-transform:uppercase;letter-spacing:1.4px}.store-card{display:flex;gap:10px;align-items:center;margin:24px 0 16px;padding:12px;border:1px solid #33235e;border-radius:14px;background:#1a0e3c}.store-card .store-icon{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--purple),var(--purple2));color:#fff}.store-card strong,.store-card small{display:block;max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.store-card small{color:#a99fca;font-size:11px;margin-top:3px}.sidebar nav{display:flex;flex-direction:column;gap:4px;overflow:auto}.nav-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:10px;color:#bbb3d0;font-size:14px}.nav-item i{font-size:18px}.nav-item:hover,.nav-item.active{color:#fff;background:linear-gradient(90deg,rgba(113,55,240,.34),rgba(159,47,228,.12));box-shadow:inset 3px 0 var(--purple)}.logout{margin-top:auto}.app-main{margin-left:250px;width:calc(100% - 250px)}.topbar{height:86px;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:0 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