:root{--font-family: "Inter", system-ui, -apple-system, sans-serif;--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: rgba(30, 41, 59, .6);--glass-bg: rgba(30, 41, 59, .6);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent-primary: #3b82f6;--accent-hover: #2563eb;--accent-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);--border-color: rgba(255, 255, 255, .1);--sidebar-width: 260px;--header-height: 64px}:root.light-mode{--bg-primary: #f1f5f9;--bg-secondary: #ffffff;--bg-tertiary: rgba(255, 255, 255, .8);--glass-bg: rgba(255, 255, 255, .6);--text-primary: #0f172a;--text-secondary: #334155;--text-muted: #64748b;--border-color: rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{cursor:pointer;border:none;background:none;font-family:var(--font-family)}.glass-panel{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:16px}.app-container{display:flex;min-height:100vh}.main-content{flex:1;display:flex;flex-direction:column;margin-left:var(--sidebar-width);min-height:100vh}.page-container{padding:2rem;flex:1;max-width:1200px;margin:0 auto;width:100%}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .4s ease-out forwards}.btn-primary{background:var(--accent-gradient);color:#fff;padding:.75rem 1.5rem;border-radius:8px;font-weight:500;transition:transform .2s,box-shadow .2s;box-shadow:0 4px 12px #3b82f64d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 16px #3b82f666}