*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:linear-gradient(135deg,#f5f7fa,#c3cfe2);--bg-secondary:#fff;--text-primary:#111827;--text-secondary:#6b7280;--border-color:#e5e7eb;--sidebar-bg:linear-gradient(180deg,#667eea,#764ba2);--card-shadow:0 4px 20px #00000014}[data-theme=dark]{--bg-primary:linear-gradient(135deg,#1a1a2e,#16213e);--bg-secondary:#1e293b;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--border-color:#334155;--sidebar-bg:linear-gradient(180deg,#4c1d95,#581c87);--card-shadow:0 4px 20px #0000004d}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);background:var(--bg-primary);color:#111827;color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0;min-height:100vh;transition:background .3s ease,color .3s ease}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.App{min-height:100vh}.btn{align-items:center;border:none;border-radius:6px;cursor:pointer;display:inline-flex;font-size:14px;font-weight:500;gap:8px;padding:10px 20px;transition:all .3s ease}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 15px #667eea66;color:#fff}.btn-primary:hover{background:linear-gradient(135deg,#5568d3,#6a3d8f);box-shadow:0 6px 20px #667eea80;transform:translateY(-1px)}.btn-secondary{background-color:#6b7280;color:#fff}.btn-secondary:hover{background-color:#4b5563}.btn-danger{background-color:#dc2626;color:#fff}.btn-danger:hover{background-color:#b91c1c}.btn:disabled{cursor:not-allowed;opacity:.5}.form-group{margin-bottom:20px}.form-label{display:block;font-weight:500;margin-bottom:8px}.form-input,.form-label{color:var(--text-primary)}.form-input{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:6px;font-size:14px;padding:10px 12px;transition:border-color .3s ease;width:100%}.form-input:focus{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb1a;outline:none}.form-textarea{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);font-family:inherit;font-size:14px;min-height:120px;padding:10px 12px;resize:vertical;transition:border-color .3s ease;width:100%}.form-textarea:focus{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb1a;outline:none}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:16px;box-shadow:var(--card-shadow);color:var(--text-primary);margin-bottom:24px;padding:28px;transition:transform .3s ease,box-shadow .3s ease}.card:hover{box-shadow:0 8px 30px #00000026;transform:translateY(-2px)}.card-header{border-bottom:1px solid #e5e7eb;margin-bottom:20px;padding-bottom:16px}.card-title{color:var(--text-primary);font-size:20px;font-weight:600}.text-center{text-align:center}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}