:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;color:#192942;background:#edf1f7;font-synthesis:none;font-size:16px;--navy:#101e3b;--blue:#225cdb;--green:#00775e;--red:#c03848;--muted:#63728a;--line:#dfe5ef}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer;min-height:48px;border:0;border-radius:14px;padding:12px 16px;font-weight:700;background:#eaf0fc;color:#244986}button:hover{filter:brightness(.96)}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #62aaff;outline-offset:3px}input,select,textarea{width:100%;min-height:52px;border:1px solid #cbd5e3;border-radius:12px;padding:12px;background:white;color:var(--navy);font-size:1.05rem}input[inputmode]{font-variant-numeric:tabular-nums}input:focus{border-color:var(--blue)}label{display:block;font-size:.9rem;font-weight:650;margin-bottom:8px}h1,h2,h3,p{margin:0}h1{font-size:1.85rem;letter-spacing:-.045em;line-height:1.5}h2{font-size:1.2rem;line-height:1.5}h3{font-size:1.03rem}p{line-height:1.8}small,.small{font-size:.875rem}a{color:var(--blue)}.shell{max-width:560px;min-height:100dvh;margin:auto;background:#f6f8fc;box-shadow:0 0 80px #1828400b}.app-header{display:flex;align-items:center;justify-content:space-between;padding:22px 20px;background:#fff;border-bottom:1px solid var(--line)}.app-header a{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:800;letter-spacing:.03em}.app-header small{display:block;color:var(--muted);font-size:.75rem;letter-spacing:.03em;margin-top:3px;font-weight:500}.brand-icon{display:grid;place-items:center;font-size:2rem;background:var(--navy);color:#86c7ff;border-radius:13px;width:46px;height:46px}.icon-btn{padding:10px 14px;background:#f2f5fa;color:#485875;font-size:.875rem}main{padding:24px 20px 12px}footer{text-align:center;color:var(--muted);font-size:.8rem;padding:26px 16px 32px}.eyebrow{font-size:.75rem;font-weight:800;letter-spacing:.16em;color:#547bac;margin-bottom:12px}.muted{color:var(--muted)}.intro{margin:12px 0 28px;color:var(--muted);font-size:.95rem}.hero-card{position:relative;overflow:hidden;background:var(--navy);color:white;border-radius:24px;padding:28px 24px;box-shadow:0 14px 30px #10234b18;margin:24px 0}.hero-card:after{content:'＝';position:absolute;right:-12px;top:22px;transform:rotate(-24deg);font-size:9rem;line-height:1;color:#ffffff07;pointer-events:none}.hero-card .muted{color:#b6c8e4}.hero-card .eyebrow{color:#8fc7ff}.hero-card h2{font-size:1.3rem}.hero-card p{font-size:.95rem;margin:10px 0 24px}.primary{background:var(--blue);color:white;box-shadow:0 5px 12px #225cdb16}.hero-card .primary{background:#81c5ff;color:#0e2544;box-shadow:none}.wide{width:100%}.row{display:flex;align-items:center;gap:10px}.between{justify-content:space-between}.stack{display:grid;gap:14px}.mt{margin-top:20px}.mb{margin-bottom:20px}.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;margin-top:16px}.card.flat{box-shadow:none}.steps{display:flex;justify-content:space-between;gap:8px;padding:14px 0 22px;font-size:.8rem;color:var(--muted)}.step{display:flex;gap:7px;align-items:center}.step b{width:25px;height:25px;border-radius:50%;display:grid;place-items:center;background:#e8edf5;color:#6a7b91}.step.active{color:var(--blue);font-weight:700}.step.active b{background:var(--blue);color:white}.count-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:20px 0}.count-grid button{padding:12px 0;font-size:1.1rem;background:#f0f4fa;color:#52637c}.count-grid .selected{background:var(--navy);color:white}.avatar{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:#edf2fc;color:#2c5db4;font-weight:800;flex:none}.name-row{display:flex;align-items:center;gap:12px;margin-top:14px}.name-row label{width:66px;flex:none;margin:0;font-size:.875rem}.summary{background:var(--navy);color:white;border-radius:22px;padding:22px;margin:18px 0 22px}.summary .muted{color:#bac9df}.summary .profit{color:#80e4ce}.summary .loss{color:#ff9aa5}.summary dl{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:16px}.summary dt{font-size:.875rem;color:#bac9df}.summary dd{margin:6px 0 0;font-weight:750;font-size:1.25rem;font-variant-numeric:tabular-nums}.summary .total{margin-top:20px;border-top:1px solid #ffffff20;padding-top:20px;display:flex;align-items:center;justify-content:space-between;gap:8px}.money{font-variant-numeric:tabular-nums;letter-spacing:-.035em;white-space:nowrap}.large-money{font-size:clamp(1.5rem,7.5vw,2.2rem);font-weight:800}.profit{color:var(--green)}.loss{color:var(--red)}.neutral{color:var(--muted)}.participant-list{display:flex;gap:8px;overflow-x:auto;padding:4px 0 14px;scrollbar-width:thin}.participant-list button{white-space:nowrap;background:white;color:#586780;border:1px solid var(--line);min-width:78px}.participant-list .selected{background:var(--navy);color:white;border-color:var(--navy)}.tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:5px;border-radius:14px;background:#edf1f7;margin:20px 0}.tabs button{background:transparent;color:#687993;box-shadow:none}.tabs .selected{background:white;color:var(--blue);box-shadow:0 2px 6px #1b315810}.mini-totals{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}.mini-totals p{font-weight:750;font-size:1.2rem}.quick{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0 18px}.quick button{padding:12px 4px;font-size:.95rem}.input-action{display:grid;grid-template-columns:1fr auto;gap:10px}.input-action input{min-width:0}.sticky{position:sticky;bottom:0;padding:14px 0 calc(10px + env(safe-area-inset-bottom));background:linear-gradient(#f6f8fcdd,#f6f8fc);margin-top:20px;z-index:5}.sticky button{min-height:56px;font-size:1.06rem}.text-btn{background:transparent;color:var(--muted);font-size:.875rem}.danger{color:var(--red);background:#fff0f2}.tag{font-size:.75rem;padding:5px 9px;background:#edf3ff;color:#3b61a6;border-radius:7px}.history-entry{padding:14px 0;border-bottom:1px solid var(--line)}.history-entry:last-child{border:0}.history-entry .row{flex-wrap:wrap}.history-entry button{font-size:.875rem;padding:8px 12px;min-height:44px}.notice{padding:16px;border-radius:14px;background:#fff7e3;color:#805a0b;font-size:.9rem;line-height:1.7;margin:16px 0}.notice.error{background:#fff0f2;color:#a32c3d}.notice.success{background:#e6f6f1;color:#006953}.payment{background:white;border:1px solid var(--line);border-radius:18px;padding:18px;margin:12px 0}.payment .route{display:grid;grid-template-columns:1fr 28px 1fr;gap:8px;align-items:center;font-weight:700}.payment .route span{overflow-wrap:anywhere}.payment .route span:last-child{text-align:right}.payment .amount{text-align:right;color:var(--blue);font-size:1.65rem;font-weight:800;margin-top:12px}.result-person{border-top:1px solid var(--line);margin-top:16px;padding-top:16px}.result-person dl{display:grid;grid-template-columns:1fr 1fr;margin:12px 0;gap:9px;font-size:.9rem}.result-person dt{color:var(--muted)}.result-person dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}.result-person .final{display:flex;justify-content:space-between;gap:12px;background:#f4f7fc;padding:12px;border-radius:12px}.wrap{overflow-wrap:anywhere;min-width:0}.adjust-row{display:grid;grid-template-columns:minmax(70px,1fr) minmax(100px,160px) 20px;gap:10px;align-items:center;margin-top:12px}.adjust-row label{margin:0;overflow-wrap:anywhere}.adjust-row input{text-align:right}.checkbox{display:flex;gap:10px;align-items:flex-start;font-weight:500;line-height:1.7}.checkbox input{width:22px;min-height:22px;flex:none;margin-top:3px;accent-color:var(--blue)}details{margin:18px 0}summary{cursor:pointer;min-height:48px;display:flex;align-items:center;font-size:.95rem;font-weight:650}.empty{text-align:center;padding:34px 8px;color:var(--muted)}.history-card{width:100%;background:white;color:var(--navy);text-align:left;border:1px solid var(--line);border-radius:18px;margin-top:12px;padding:18px}.history-card small{display:block;margin-bottom:8px;color:var(--muted)}dialog{max-width:440px;width:calc(100% - 32px);border:0;border-radius:22px;padding:24px;max-height:85dvh;color:var(--navy);box-shadow:0 20px 100px #0003}dialog::backdrop{background:#0b193e88;backdrop-filter:blur(3px)}dialog h2{margin-bottom:14px}dialog .actions{display:flex;gap:10px;margin-top:22px}dialog .actions button{flex:1}dialog textarea{min-height:240px;font-size:.9rem}#toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);background:#101e3bef;color:#fff;border-radius:12px;padding:14px 20px;max-width:calc(100% - 32px);width:max-content;font-size:.9rem;z-index:20;opacity:0;pointer-events:none;transition:opacity .2s}#toast.show{opacity:1}.home-note{display:grid;grid-template-columns:32px 1fr;gap:12px;align-items:start;margin:22px 4px}.home-note b{display:block;margin-bottom:4px;font-size:.95rem}.home-note p{font-size:.875rem;color:var(--muted)}.home-note .number{color:#3d6aa8;font-size:.85rem;font-weight:800;padding-top:3px}.back{padding-left:0;background:transparent;font-size:.9rem;min-height:44px}.help{padding:0 4px;color:var(--muted);font-size:.875rem}.help ol{padding-left:22px;line-height:1.9}.saved-badge{display:inline-block;color:#00765c;background:#e5f6f1;padding:6px 10px;border-radius:8px;font-size:.8rem;margin-bottom:12px}@media(min-width:600px){.shell{margin:24px auto;border-radius:28px;overflow:clip;min-height:calc(100dvh - 48px)}main{padding:28px}.app-header{padding:24px 28px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}@media(max-width:360px){main{padding:20px 14px}.card{padding:16px}.quick button{font-size:.85rem}.summary{padding:18px}.app-header{padding:18px 14px}}
