:root{--primary: #6d28d9;--primary-dark: #5b21b6;--primary-light: #ede9fe;--accent: #f59e0b;--accent-light: #fef3c7;--bg: #f5f3ff;--bg-card: #ffffff;--bg-dark: #1e1b4b;--bg-dark-secondary: #312e81;--text: #1e1b4b;--text-muted: #6b7280;--text-light: #9ca3af;--border: #e5e7eb;--border-light: #f3f4f6;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -4px rgba(0, 0, 0, .04);--radius: 8px;--radius-lg: 12px;--max-width: 1200px;--header-height: 64px;--sidebar-width: 300px;--transition: .2s ease;--grade4: #10b981;--grade5: #06b6d4;--grade6: #3b82f6;--middle1: #6366f1;--middle2: #8b5cf6;--middle3: #a855f7;--high1: #ec4899;--high2: #f43f5e;--high3: #ef4444}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--primary);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--primary-dark)}img{max-width:100%;height:auto}code,pre{font-family:JetBrains Mono,Fira Code,monospace}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.6rem 1.5rem;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-size:.95rem;font-weight:500;transition:all var(--transition)}.btn:hover{background:var(--primary-dark);text-decoration:none;color:#fff;transform:translateY(-1px)}.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:#c4b5fd;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#a78bfa}::selection{background:var(--primary-light);color:var(--primary-dark)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}