.sidebar{width:250px;background:var(--surface);border-right:1px solid var(--border);padding:20px;min-height:100vh}.sidebar-header h2{color:var(--primary);margin-bottom:30px}.sidebar-nav{display:flex;flex-direction:column;gap:10px;margin-bottom:30px}.nav-link{padding:12px;color:var(--text-muted);text-decoration:none;border-radius:6px;transition:all .2s}.nav-link:hover{background:var(--bg);color:var(--text)}.logout-btn{width:100%;padding:12px;background:var(--bg);color:var(--text-muted);border:1px solid var(--border);border-radius:6px;cursor:pointer}.logout-btn:hover{background:var(--primary);color:#fff}.app-container{display:flex;min-height:100vh}:root{--primary: #7c3aed;--secondary: #ec4899;--bg: #0f172a;--surface: #1e293b;--text: #f1f5f9;--text-muted: #94a3b8;--border: #334155}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}.loading{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg);font-size:18px;color:var(--text-muted)}