:root{--bg: #0f172a;--card: #1e293b;--card2: #273449;--text: #f1f5f9;--muted: #94a3b8;--accent: #22c55e;--accent-dim: #15803d;--warn: #f59e0b;--danger: #ef4444;--radius: 14px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}#root{max-width:480px;margin:0 auto;min-height:100dvh;padding:0 0 96px}a{color:inherit}button{font:inherit;cursor:pointer}.topbar{position:sticky;top:0;z-index:10;background:#0f172aeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:14px 16px;border-bottom:1px solid #1e293b;display:flex;align-items:center;gap:10px}.topbar .logo{font-weight:800;font-size:20px;letter-spacing:-.5px}.topbar .logo span{color:var(--accent)}.topbar .tripname{color:var(--muted);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.screen{padding:16px;display:flex;flex-direction:column;gap:14px}h1{font-size:24px;margin:4px 0;letter-spacing:-.5px}h2{font-size:17px;margin:8px 0 0}p.muted,.muted{color:var(--muted);font-size:14px}.card{background:var(--card);border-radius:var(--radius);padding:14px 16px;display:flex;flex-direction:column;gap:10px}.row{display:flex;align-items:center;gap:10px}.row.between{justify-content:space-between}.grow{flex:1}input[type=text],input[type=number],select,textarea{width:100%;background:var(--card2);border:1px solid #334155;color:var(--text);border-radius:10px;padding:12px;font-size:16px;font-family:inherit}input:focus,select:focus{outline:2px solid var(--accent);border-color:transparent}label.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:12px;padding:14px 18px;font-size:16px;font-weight:700;color:#052e16;background:var(--accent);width:100%}.btn:active{transform:scale(.98)}.btn.secondary{background:var(--card2);color:var(--text)}.btn.ghost{background:transparent;color:var(--muted);border:1px solid #334155}.btn.danger{background:var(--danger);color:#fff}.btn.small{width:auto;padding:9px 14px;font-size:14px}.btn:disabled{opacity:.45;cursor:default}.btnrow{display:flex;gap:10px}.btnrow .btn{flex:1}.chiprow{display:flex;flex-wrap:wrap;gap:8px}.chip{border:1px solid #334155;background:var(--card2);color:var(--text);border-radius:999px;padding:9px 14px;font-size:14px;font-weight:600}.chip.on{background:var(--accent);border-color:var(--accent);color:#052e16}.itemline{display:flex;align-items:center;gap:10px;padding:12px;background:var(--card2);border-radius:10px}.itemline .nm{flex:1}.itemline .nm small{display:block;color:var(--muted);font-size:12px}.itemline .amt{font-weight:700;font-variant-numeric:tabular-nums}.err{background:#3f1d1d;border:1px solid var(--danger);color:#fecaca;border-radius:10px;padding:12px;font-size:14px}.ok{background:#12351f;border:1px solid var(--accent-dim);color:#bbf7d0;border-radius:10px;padding:12px;font-size:14px}.settlerow{display:flex;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid #1e293b}.settlerow:last-child{border-bottom:none}.avatar{width:38px;height:38px;border-radius:50%;background:var(--accent-dim);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}.tabs{display:flex;gap:8px}.tabs .chip{flex:1;text-align:center}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.unitgrid{display:flex;flex-direction:column;gap:10px}.unit{background:var(--card2);border-radius:10px;padding:10px 12px}.unit .ulabel{font-weight:700;font-size:14px;margin-bottom:8px}.bottomnav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;background:#0f172af5;border-top:1px solid #1e293b;display:flex;padding:10px 12px calc(10px + env(safe-area-inset-bottom));gap:8px}.bottomnav .btn{padding:12px 8px;font-size:14px}.stepdots{display:flex;gap:6px;justify-content:center}.stepdots i{width:8px;height:8px;border-radius:50%;background:#334155}.stepdots i.on{background:var(--accent)}.linkbox{background:var(--card2);border:1px dashed #475569;border-radius:10px;padding:12px;font-size:13px;word-break:break-all;color:var(--muted)}.bigcode{font-size:30px;font-weight:800;letter-spacing:3px;text-align:center}.amt-big{font-size:34px;font-weight:800;font-variant-numeric:tabular-nums}.center{text-align:center}