*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0f1923;--surface: #1a2634;--surface-hover: #243447;--primary: #00d4aa;--primary-hover: #00b894;--danger: #e74c3c;--danger-hover: #c0392b;--text: #e8e8e8;--text-muted: #8899a6;--border: #2d3f50;--positive: #00d4aa;--negative: #e74c3c;--radius: 12px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100dvh;-webkit-font-smoothing:antialiased}#root{max-width:480px;margin:0 auto;padding:16px;padding-top:calc(env(safe-area-inset-top,0px) + 16px);padding-bottom:calc(env(safe-area-inset-bottom,0px) + 16px);min-height:100dvh;display:flex;flex-direction:column}h1{font-size:1.8rem;font-weight:700;text-align:center;margin-bottom:8px}h2{font-size:1.3rem;font-weight:600;margin-bottom:12px}.subtitle{color:var(--text-muted);text-align:center;margin-bottom:32px;font-size:.95rem}button{display:block;width:100%;padding:14px 20px;border:none;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s}button.primary{background:var(--primary);color:var(--bg)}button.primary:hover{background:var(--primary-hover)}button.primary:disabled{background:var(--border);color:var(--text-muted);cursor:not-allowed}button.danger{background:var(--danger);color:#fff}button.danger:hover{background:var(--danger-hover)}button.secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}button.secondary:hover{background:var(--surface-hover)}input{display:block;width:100%;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);font-size:1rem;outline:none;transition:border-color .2s}input:focus{border-color:var(--primary)}input::placeholder{color:var(--text-muted)}.input-group{margin-bottom:16px}.input-group label{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:6px;font-weight:500}.card{background:var(--surface);border-radius:var(--radius);padding:16px;margin-bottom:12px;border:1px solid var(--border)}.game-code{font-size:2.5rem;font-weight:800;text-align:center;letter-spacing:.3em;color:var(--primary);font-family:SF Mono,Fira Code,monospace;margin:16px 0}.player-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border)}.player-row:last-child{border-bottom:none}.player-name{font-weight:600}.player-name .host-badge{font-size:.7rem;background:var(--primary);color:var(--bg);padding:2px 6px;border-radius:4px;margin-left:8px;font-weight:700;vertical-align:middle}.player-amount{font-weight:700;font-family:SF Mono,Fira Code,monospace}.player-amount.positive{color:var(--positive)}.player-amount.negative{color:var(--negative)}.settlement-card{background:var(--surface);border-radius:var(--radius);padding:16px;margin-bottom:12px;border:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.settlement-info{flex:1}.settlement-arrow{color:var(--text-muted);font-size:.85rem}.settlement-amount{font-size:1.2rem;font-weight:700;color:var(--primary);font-family:SF Mono,Fira Code,monospace}.venmo-btn{display:inline-block;background:#008cff;color:#fff;padding:8px 16px;border-radius:8px;text-decoration:none;font-weight:600;font-size:.85rem;margin-top:8px;width:auto}.venmo-btn:hover{background:#0070cc}.section{margin-bottom:24px}.spacer{flex:1}.btn-group{display:flex;gap:12px;margin-top:16px}.btn-group button{flex:1}.error{color:var(--danger);font-size:.85rem;margin-top:8px;text-align:center}.loading{text-align:center;color:var(--text-muted);padding:40px 20px}.txn-log{max-height:200px;overflow-y:auto;font-size:.85rem}.txn-row{display:flex;justify-content:space-between;padding:6px 0;color:var(--text-muted);border-bottom:1px solid var(--border)}.txn-row:last-child{border-bottom:none}.quick-amounts{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}.quick-amounts button{flex:1;min-width:60px;padding:10px;font-size:.9rem}.screen{animation:fadeIn .2s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}