:root{--color-nav: #141414;--color-nav-hover: #262626;--color-bg: #EDEDEA;--color-surface: #FFFFFF;--color-border: #DEDBD5;--color-text: #141414;--color-text-muted: #6B6862;--color-accent: #BE1E2D;--color-accent-hover: #971721;--color-success: #3D8361;--color-success-bg: #E7F3EC;--color-warning: #C08A2E;--color-warning-bg: #FBF1E1;--color-danger: #BE1E2D;--color-danger-bg: #FAE9EA;--font-sans: "IBM Plex Sans", -apple-system, sans-serif;--font-display: "Oswald", var(--font-sans);--font-mono: "IBM Plex Mono", ui-monospace, monospace;--radius: 4px;--shadow-sm: 0 1px 2px rgba(20, 20, 20, .08)}*{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);background:linear-gradient(#ededeaed,#ededeaed),url(/res.avif) center / cover fixed no-repeat;color:var(--color-text);font-size:15px;line-height:1.5}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--color-nav);color:#e7ecef;display:flex;flex-direction:column;padding:24px 0}.sidebar-brand{display:flex;align-items:center;padding:16px 20px 24px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:12px}.sidebar-brand-logo-box{background:#fff;border-radius:6px;padding:10px 14px;display:inline-flex;align-items:center;justify-content:center}.sidebar-brand img{max-width:100%;max-height:44px;width:auto;height:auto;object-fit:contain;display:block}.sidebar-nav{display:flex;flex-direction:column;gap:2px;padding:0 10px}.sidebar-link{display:block;padding:9px 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