*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #0f172a;--color-surface: #1e293b;--color-surface-hover: #334155;--color-border: #334155;--color-text: #f1f5f9;--color-text-muted: #94a3b8;--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-danger: #ef4444;--color-success: #22c55e;--color-warning: #f59e0b;--color-gray: #9ca3af;--radius: 8px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .3)}html,body,#root{height:100%;width:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text)}button{cursor:pointer;border:none;border-radius:var(--radius);padding:8px 16px;font-size:14px;font-weight:500;transition:background .15s}button.primary{background:var(--color-primary);color:#fff}button.primary:hover{background:var(--color-primary-hover)}button.danger{background:var(--color-danger);color:#fff}button.danger:hover{background:#dc2626}button.secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}button.secondary:hover{background:var(--color-surface-hover)}input,select,textarea{background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-text);border-radius:var(--radius);padding:8px 12px;font-size:14px;width:100%}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-primary)}label{display:block;font-size:13px;color:var(--color-text-muted);margin-bottom:4px}.form-group{margin-bottom:12px}