:root{--bg: #ffffff;--fg: #111827;--muted: #6b7280;--line: #e5e7eb;--primary: #1f2937;--primary-fg: #ffffff;--accent: #2563eb;--warn-bg: #fef3c7;--warn-fg: #92400e;--ok-bg: #d1fae5;--ok-fg: #065f46;--radius: 10px;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-tap-highlight-color:transparent}main{max-width:560px;margin:0 auto;padding:0 16px calc(24px + env(safe-area-inset-bottom))}h1{font-size:1.25rem;margin:0}button{font:inherit;border:1px solid var(--line);background:#fff;color:var(--fg);border-radius:var(--radius);padding:10px 14px;min-height:44px;cursor:pointer}button:disabled{opacity:.5;cursor:default}button.primary{background:var(--primary);color:var(--primary-fg);border-color:var(--primary)}button.secondary{background:#f9fafb}button.link{border:0;background:none;color:var(--accent);padding:4px 6px;min-height:0;text-decoration:underline}button.icon{padding:0 10px;min-width:44px;color:var(--muted)}button.big{width:100%;font-size:1.1rem;min-height:56px}input[type=text],input[type=number]{font:inherit;border:1px solid var(--line);border-radius:var(--radius);padding:10px 12px;min-height:44px;width:100%;background:#fff;color:var(--fg)}.navbar{position:sticky;top:0;z-index:1;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:8px;padding:12px 0;background:var(--bg);border-bottom:1px solid var(--line);margin-bottom:16px}.navbar h1{text-align:center}.navbar button:last-child{justify-self:end}.navbar button:first-child{justify-self:start}.start{display:grid;gap:14px;padding-top:25vh;text-align:center}.start h1{font-size:1.75rem;margin-bottom:12px}.badge{border-radius:var(--radius);padding:10px 12px;margin:12px 0;font-size:.95rem}.badge.warn{background:var(--warn-bg);color:var(--warn-fg)}.badge.ok{background:var(--ok-bg);color:var(--ok-fg)}.hint{color:var(--muted)}.items{list-style:none;margin:0;padding:0;display:grid;gap:10px}.item-row{display:grid;grid-template-columns:1fr 64px 96px auto 44px;gap:6px;align-items:center}.item-row .line-total{text-align:right;min-width:64px;font-variant-numeric:tabular-nums}@media(max-width:420px){.item-row{grid-template-columns:1fr 56px 88px 44px}.item-row .line-total{grid-column:1 / -1;text-align:right;color:var(--muted);font-size:.9rem}}.totals{display:grid;grid-template-columns:1fr 140px;gap:8px 12px;align-items:center;margin:20px 0 0}.totals dt{color:var(--muted)}.totals dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}.chip{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 12px;min-height:36px;border:1px solid var(--line);background:#f9fafb;font-size:.95rem}.chip.on{background:var(--primary);color:var(--primary-fg);border-color:var(--primary)}.chip.everyone{border-style:dashed}.chip button{border:0;background:none;padding:0 2px;min-height:0;color:inherit}.people{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px}.people input{flex:1 1 140px;width:auto}.assign-row{border:1px solid var(--line);border-radius:var(--radius);padding:10px 12px;display:grid;gap:8px}.assign-row.unassigned{border-color:var(--warn-fg);background:var(--warn-bg)}.assign-row .head{display:flex;justify-content:space-between;gap:8px}.assign-row .who{display:flex;flex-wrap:wrap;gap:6px}.cards{list-style:none;margin:0;padding:0;display:grid;gap:10px}.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.card-head{width:100%;display:flex;justify-content:space-between;border:0;border-radius:0;padding:14px;font-size:1.05rem}.card-head .total{font-weight:600;font-variant-numeric:tabular-nums}.breakdown{display:grid;grid-template-columns:1fr auto;gap:4px 12px;margin:0;padding:0 14px 12px;color:var(--muted);font-size:.95rem}.breakdown dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}.actions{display:grid;gap:10px;margin-top:20px}