*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0d0d0d;--surface: #161616;--surface-raised: #1e1e1e;--border: #2a2a2a;--accent-light: #9b7fd4;--accent-dark: #7b5bb0;--text: #e8e8e8;--text-muted: #888;--danger: #e74c3c}body{background:var(--bg);color:var(--text);font-family:Segoe UI,system-ui,sans-serif;min-height:100vh}button{cursor:pointer;font-family:inherit}.btn-primary{background:linear-gradient(135deg,var(--accent-light),var(--accent-dark));color:#fff;border:none;padding:10px 24px;border-radius:8px;font-size:14px;font-weight:600}.btn-primary:disabled{opacity:.4;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border);padding:8px 16px;border-radius:6px;font-size:13px}