:root{--bg: #f4f7fb;--surface: #ffffff;--surface-soft: #f8fafc;--line: #e5eaf1;--text: #172033;--muted: #667085;--primary: #1f6feb;--primary-dark: #1558bd;--nav: #111827;--nav-soft: #1f2937;--success: #12805c;--success-bg: #e9f8f2;--warning: #b75a00;--warning-bg: #fff4e5;--danger: #c43232;--danger-bg: #fff0f0;--shadow: 0 10px 35px rgba(18, 32, 57, .08)}*{box-sizing:border-box}html{min-height:100%;background:var(--bg)}body{margin:0;min-height:100vh;color:var(--text);background:var(--bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}.app-shell{min-height:100vh;display:grid;grid-template-columns:250px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;padding:24px 16px;color:#dbe4f0;background:linear-gradient(180deg,#101827,#111f35);display:flex;flex-direction:column;z-index:20}.brand{display:flex;gap:12px;align-items:center;padding:4px 8px 28px}.brand-mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#fff;background:linear-gradient(135deg,#2b7fff,#56a6ff);box-shadow:0 8px 25px #2b7fff4d}.brand-name{font-size:15px;font-weight:750;color:#fff}.brand-subtitle{margin-top:2px;font-size:11px;color:#8ea0b8}.nav-label{padding:0 10px 8px;color:#708299;font-size:10px;font-weight:750;letter-spacing:.12em;text-transform:uppercase}.nav-list{display:grid;gap:5px}.nav-item{min-height:44px;padding:10px 12px;border-radius:10px;display:flex;align-items:center;gap:11px;color:#aebcd0;font-size:14px;font-weight:620;transition:.18s ease}.nav-item:hover{background:#ffffff0f;color:#fff}.nav-item.active{color:#fff;background:#3082ff2e;box-shadow:inset 3px 0 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