:root{--bg: #0f1117;--bg-card: #1a1d27;--bg-card-hover: #22263a;--border: #2a2e3e;--text: #e4e6ef;--text-secondary: #8b8fa3;--primary: #6366f1;--primary-hover: #818cf8;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--info: #3b82f6;--radius: 8px;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--sidebar-width: 240px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-hover)}.app-layout{display:flex;min-height:100vh}.mobile-header{display:none;position:fixed;top:0;left:0;right:0;height:56px;background:var(--bg-card);border-bottom:1px solid var(--border);align-items:center;padding:0 16px;gap:12px;z-index:30}.mobile-menu-btn{background:none;border:none;color:var(--text);cursor:pointer;padding:6px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center}.mobile-menu-btn:hover{background:var(--bg-card-hover)}.mobile-header-title{font-size:16px;font-weight:700;color:var(--primary)}.sidebar{width:var(--sidebar-width);background:var(--bg-card);border-right:1px solid var(--border);padding:24px 0;display:flex;flex-direction:column;position:fixed;top:0;left:0;height:100vh;overflow-y:auto;z-index:40;transition:transform .25s ease}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:35}.sidebar-close-btn{display:none;background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:var(--radius)}.sidebar-close-btn:hover{color:var(--text)}.sidebar-brand{padding:0 20px 24px;border-bottom:1px solid var(--border);margin-bottom:16px}.sidebar-brand 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