:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-card: #0f3460;--accent: #e94560;--text-primary: #eee;--text-secondary: #aaa;--success: #4ecca3;--warning: #f0a500}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);min-height:100dvh}#root{min-height:100dvh;display:flex;flex-direction:column}button{cursor:pointer;border:none;border-radius:8px;padding:12px 24px;font-size:1rem;font-weight:600;transition:opacity .2s}button:active{opacity:.8}input,textarea{background:var(--bg-secondary);border:1px solid #333;border-radius:8px;padding:12px 16px;color:var(--text-primary);font-size:1rem;width:100%}input:focus,textarea:focus{outline:none;border-color:var(--accent)}.btn-primary{background:var(--accent);color:#fff}.btn-secondary{background:var(--bg-card);color:var(--text-primary)}