:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",Meiryo,sans-serif;color:#152536;background:#f5f7fa;font-synthesis:none;font-optical-sizing:auto;--ink:#152536;--muted:#5a6978;--line:#dfe6ed;--paper:#fff;--blue:#1959bd;--green:#147650;--red:#b5473d}*{box-sizing:border-box}body{margin:0;line-height:1.55}[hidden]{display:none!important}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:3}.site-head,main,footer{width:min(1160px,calc(100% - 32px));margin-inline:auto}.site-head{display:flex;align-items:center;gap:14px;padding:22px 0 18px}.brand-mark{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:#deebff;color:var(--blue);font-weight:800;font-size:1.3rem}.site-head h1{font-size:1.18rem;margin:0}.eyebrow{text-transform:none;letter-spacing:.04em;color:var(--blue);font-size:.78rem;font-weight:750;margin:0 0 4px}.edition{margin-left:auto;color:#526272;border:1px solid var(--line);background:white;border-radius:99px;padding:4px 12px;font-size:.83rem}.intro{background:#e9f1fc;border-radius:20px;padding:30px;display:flex;align-items:center;justify-content:space-between;gap:26px;margin:6px 0 20px}.intro h2{font-size:clamp(1.5rem,3.5vw,2.35rem);line-height:1.24;margin:0 0 10px;max-width:730px}.intro p{max-width:730px;color:#405568;margin:0}.hero-note{min-width:210px;max-width:270px;background:#fff;border-radius:14px;padding:16px;display:grid;gap:5px;font-size:.88rem}.hero-note span,.help,.fieldset-help,.unit{font-size:.81rem;color:var(--muted)}.panel{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:24px;margin:18px 0;box-shadow:0 4px 18px #15253608}.section-title{display:flex;align-items:flex-start;gap:12px;margin-bottom:20px}.section-title h2{margin:0;font-size:1.35rem}.section-title p{margin:3px 0 0;color:var(--muted);font-size:.9rem}.step{width:30px;height:30px;flex:0 0 30px;border-radius:50%;display:grid;place-items:center;background:#e8f0fb;color:var(--blue);font-weight:800}.step.paid{background:#e6f5ed;color:var(--green)}fieldset{border:0;border-top:1px solid var(--line);padding:18px 0 8px;margin:0}legend{padding:0 8px 0 0;font-weight:750;font-size:1.02rem}.fieldset-help{margin:-5px 0 14px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px 18px}.form-grid>label{display:grid;grid-template-columns:auto auto;align-content:start;gap:5px 8px;font-size:.9rem;font-weight:650}.form-grid>label input,.form-grid>label select{grid-column:1/-1;width:100%}.unit{font-weight:400}.help{grid-column:1/-1;font-weight:400;line-height:1.4;margin-top:-1px}.field-note{padding:12px 15px;background:#f3f6f9;border-radius:9px;font-size:.86rem}.field-note p{margin:5px 0 0;color:var(--muted)}input,select{font:inherit;color:var(--ink);border:1px solid #aab8c6;border-radius:8px;padding:10px 11px;background:#fff;min-height:42px}input:focus,select:focus,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #74a5f4;outline-offset:2px}.check-card{grid-column:1/-1;border:1px solid var(--line);border-radius:10px;padding:12px;display:flex!important;align-items:flex-start;gap:10px!important}.check-card input{width:18px;height:18px;min-height:auto;margin:2px 0 0}.check-card span{display:grid;gap:4px}.check-card small{font-weight:400;color:var(--muted);line-height:1.45}.advanced{padding:13px 0;border-top:1px solid var(--line)}.advanced summary{font-weight:700;cursor:pointer}.advanced .form-grid{margin-top:15px}.form-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px}.button{border:0;border-radius:9px;padding:10px 15px;font:inherit;font-weight:720;cursor:pointer;min-height:42px}.button.primary{background:var(--blue);color:#fff}.button.primary:hover:not(:disabled){background:#10489a}.button.secondary{border:1px solid #c9d4df;background:#fff;color:var(--ink)}.button:disabled{opacity:.54;cursor:not-allowed}.error{color:#a72a24;font-size:.9rem}.results{border-color:#cbdcf3}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.summary{border:1px solid var(--line);border-radius:12px;padding:16px;display:grid;gap:3px}.summary>span{font-size:.87rem;color:var(--muted)}.summary strong{font-size:clamp(1.35rem,3vw,2rem);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.summary small{color:var(--muted);font-size:.77rem}.summary.emphasis{border-color:#8cb1ea;background:#f0f6ff}.positive{color:var(--green)}.negative{color:var(--red)}.disclaimer{margin:14px 0;background:#fff6df;border-left:4px solid #d59817;border-radius:4px;padding:13px 16px}.disclaimer p{margin:4px 0 0;color:#4e4a3d;font-size:.9rem}.results-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;margin:24px 0}.results h3{margin:0 0 7px;font-size:1.08rem}.waterfall{display:grid;gap:9px;margin-top:14px}.waterfall-row{display:grid;grid-template-columns:minmax(125px,190px) minmax(70px,1fr) 115px;gap:10px;align-items:center;font-size:.82rem}.waterfall-label{line-height:1.3}.waterfall-label small{display:block;color:var(--muted);font-size:.72rem;font-weight:400;line-height:1.3;margin-top:3px}.bar-track{height:14px;background:#edf1f5;border-radius:4px;position:relative;overflow:hidden}.bar{height:100%;border-radius:4px;min-width:2px}.bar.plus{background:#21815e}.bar.minus{background:#c4574e}.waterfall-amount{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.free-factors{display:grid;gap:5px;margin-top:14px}.free-factor{display:flex;justify-content:space-between;gap:12px;padding:9px 11px;margin:0;border-bottom:1px solid var(--line)}.free-factor strong{white-space:nowrap;font-variant-numeric:tabular-nums}.sensitivity-panel,.paid-waterfall{border:1px solid var(--line);border-radius:12px;padding:18px;margin:18px 0}.sensitivity-panel h3,.paid-waterfall h3{margin:0 0 5px}.sensitivity-chart{width:100%;margin:10px 0}.sensitivity-chart svg{display:block;width:100%;height:auto;overflow:visible}.duration-control{max-width:520px;display:grid;gap:5px;font-weight:650}.duration-control input{width:100%;padding:0;accent-color:var(--blue)}.assumptions{padding-left:20px;color:#435565;font-size:.86rem}.assumptions li{margin:7px 0}.source-list{font-size:.8rem;display:grid;gap:5px}.source-list a{color:#1658aa;overflow-wrap:anywhere}.premium-preview{border:1px solid #ccd7e4;border-radius:14px;padding:20px;display:flex;align-items:center;justify-content:space-between;gap:22px;background:#f8fafc}.premium-preview h3{font-size:1.2rem;margin:3px 0}.premium-preview p{color:#526272;margin:5px 0}.purchase-box{flex:0 0 250px;background:white;border:1px solid var(--line);border-radius:11px;padding:13px;display:grid;gap:5px}.purchase-box span{font-size:.78rem;color:var(--muted)}.text-button{background:none;color:#1555a6;border:0;padding:4px;text-decoration:underline;cursor:pointer;justify-self:center}.scenario-actions{display:flex;align-items:end;gap:10px;flex-wrap:wrap;margin:14px 0}.scenario-actions label{display:grid;gap:4px;font-size:.82rem}.scroll-table{overflow:auto;margin:17px 0}table{width:100%;border-collapse:collapse;font-size:.82rem;white-space:nowrap}caption{text-align:left;font-weight:750;color:var(--ink);padding:8px 0}th,td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:left}thead{background:#f1f5f8}th{font-weight:700}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}tfoot{font-weight:750;background:#f7f9fb}.row-actions{display:flex;gap:6px}.row-actions button{font:inherit;border:1px solid #c6d1db;background:white;border-radius:6px;padding:4px 7px;cursor:pointer}.notice{background:#e9f4ff;border:1px solid #b3d3f5;border-radius:10px;padding:14px;margin:12px 0}footer{border-top:1px solid var(--line);padding:16px 0 26px;font-size:.83rem;color:var(--muted)}footer nav{display:flex;gap:15px;flex-wrap:wrap}footer a{color:#1555a6}.version{font-size:.75rem}.hidden{display:none!important}@media(max-width:760px){.intro{align-items:flex-start;display:block;padding:22px}.hero-note{margin-top:18px;max-width:none}.results-grid{grid-template-columns:1fr}.summary-grid{grid-template-columns:1fr}.summary{grid-template-columns:1fr auto;align-items:center}.summary strong{grid-column:2;grid-row:1/3}.summary small{grid-column:1}.premium-preview{align-items:stretch;flex-direction:column}.purchase-box{flex:auto}.waterfall-row{grid-template-columns:minmax(100px,150px) minmax(50px,1fr) 104px}}@media(max-width:520px){.site-head,main,footer{width:calc(100% - 22px)}.panel{padding:16px 13px}.intro h2{font-size:1.52rem}.form-grid{grid-template-columns:1fr}.form-grid>label{grid-template-columns:1fr}.form-grid>label input,.form-grid>label select{grid-column:1}.check-card{grid-template-columns:20px 1fr!important}.form-actions .button{flex:1}.waterfall-row{grid-template-columns:minmax(98px,1.1fr) minmax(35px,.7fr) 90px;gap:6px;font-size:.73rem}.waterfall-amount{font-size:.73rem}.scenario-actions>*{width:100%}.summary{padding:12px}}@media print{body{background:white}.site-head,main,footer{width:100%}.intro,.panel{box-shadow:none;break-inside:avoid}.form-actions,.purchase-box,.scenario-actions,.edition,.skip{display:none!important}.panel{border-color:#999}.premium-preview{display:none}#premium[hidden]{display:block!important}.scroll-table{overflow:visible}table{font-size:8pt}.results{display:block!important}}

/* Soft, playful color accents while keeping charts and inputs easy to read. */
:root{--ink:#28314b;--muted:#64708a;--line:#e4e5f1;--blue:#5965d8;--green:#218a72;--red:#df6872}
body{background:radial-gradient(ellipse at 5% 0%,#fff1e9 0,transparent 30rem),radial-gradient(ellipse at 100% 18%,#eaf1ff 0,transparent 34rem),#f8f8fc;color:var(--ink)}
.brand-mark{background:linear-gradient(140deg,#ffe2bf,#ffd7e5);color:#8750a1;box-shadow:0 5px 12px #75519920}
.eyebrow{color:#7752b9}
.edition{border-color:#e4d8fb;background:#f5efff;color:#7552a8;font-weight:700}
.intro{background:linear-gradient(115deg,#fff0df 0%,#fce7f0 48%,#e9edff 100%);box-shadow:0 10px 25px #7054a110;position:relative;overflow:hidden}
.intro:after{content:"";position:absolute;width:160px;height:160px;border-radius:50%;background:#ffffff60;right:18%;top:-100px;pointer-events:none}
.hero-note{box-shadow:0 6px 18px #47385712;border:1px solid #fff9}
.panel{border-color:#e8e5f0;box-shadow:0 8px 24px #30375d0a}
.step{background:#e8e9ff;color:#5965d8}
.step.paid{background:#e0f6ed;color:#20866f}
fieldset{border-top-color:#ece9f2}
legend{color:#514a70}
input,select{border-color:#d1d2e2;box-shadow:0 1px 2px #22253d08}
.button.primary{background:linear-gradient(115deg,#6673e8,#8a63ce);box-shadow:0 5px 12px #6571d933}
.button.primary:hover:not(:disabled){background:linear-gradient(115deg,#5562d3,#7652bd)}
.button.secondary{border-color:#dedbec;background:#fffafd}
.results{border-color:#dedafa;background:linear-gradient(180deg,#fff 0%,#fdfcff 100%)}
.comparison-periods{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:14px}
.period-result{padding:16px;border:1px solid #e9e3f5;border-radius:16px;background:#fffaf4}
.period-result h3{font-size:1rem;margin:0 0 11px;color:#574c78}
.period-range{font-size:.75rem;color:#67748a;margin:-6px 0 10px;font-variant-numeric:tabular-nums}
.period-two{background:#f6f7ff;border-color:#e1e3fa}
.period-three{background:#f1fbf6;border-color:#d9eee3}
.comparison-periods .summary-grid{grid-template-columns:1fr;gap:8px}
.comparison-periods .summary{background:#fff;border-color:#f0e7df;padding:9px 11px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:0 8px}
.comparison-periods .summary strong{grid-column:2;grid-row:1/3;white-space:nowrap;font-size:clamp(1rem,1.7vw,1.35rem)}
.comparison-periods .summary small{grid-column:1}
.period-two .summary{border-color:#e6e7f6}
.period-three .summary{border-color:#dbeee3}
.summary.emphasis{background:linear-gradient(135deg,#eefcf6,#e9f7ff);border-color:#bee8dd}
.period-two .summary.emphasis{background:linear-gradient(135deg,#f0f1ff,#f8edff);border-color:#d5cff6}
.period-three .summary.emphasis{background:linear-gradient(135deg,#e5f8ed,#e9f8f6);border-color:#b9e5d0}
.disclaimer{background:#fff7e8;border-left-color:#f0b45c;border-radius:9px}
.sensitivity-panel{background:linear-gradient(135deg,#f3faff,#f6f3ff);border-color:#dedcf5}
.paid-waterfall{background:linear-gradient(135deg,#fff7ef,#fff4f7);border-color:#f2e1e2}
.bar-track{background:#f1edf7;border-radius:99px;overflow:visible}
.zero-line{position:absolute;top:-3px;bottom:-3px;width:2px;background:#9a8daf;z-index:1}
.bar{position:absolute;top:0;box-shadow:0 1px 3px #34314a25}
.bar.plus{background:linear-gradient(90deg,#4cc59e,#3a9bd4)}
.bar.minus{background:linear-gradient(90deg,#f1a05f,#e76f86)}
.waterfall-final{padding:9px 10px;border-radius:10px;background:#f1efff;color:#4d4c89}
.waterfall-final .bar.plus{background:linear-gradient(90deg,#8270e5,#b167d3)}
.free-factor{border:0;border-radius:9px;background:#f8f6ff}
.free-factor:nth-child(3n+2){background:#fff6ec}
.free-factor:nth-child(3n){background:#eefaf5}
.premium-preview{background:linear-gradient(115deg,#fff7ed,#f4f3ff);border-color:#e7def2}
.purchase-box{border-color:#e7def2;box-shadow:0 5px 16px #614d8210}
.notice{background:#f1efff;border-color:#d9d4fa}
@media(max-width:900px){.comparison-periods{grid-template-columns:1fr}}
@media(max-width:760px){.summary-grid{grid-template-columns:1fr}.summary{grid-template-columns:1fr auto;align-items:center}.summary strong{grid-column:2;grid-row:1/3}.summary small{grid-column:1}}
@media(max-width:520px){.date-range{grid-template-columns:1fr;gap:5px}.date-range-separator{display:none}.period-result{padding:12px 10px}}
.date-range-field{display:grid;align-content:start;gap:5px;font-size:.9rem;font-weight:650}
.date-range-title{color:var(--ink)}
.date-range{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:end;gap:9px}
.date-range label{display:grid;gap:5px;font-size:.8rem;font-weight:600;color:var(--muted)}
.date-range input{width:100%;min-width:0}
.date-range-separator{padding-bottom:10px;color:#9b83bb;font-weight:800}
.waterfall-amount{display:grid;gap:1px;align-content:center}
.waterfall-amount small{font-size:.68rem;color:var(--muted);font-weight:500;white-space:normal}
@media(max-width:520px){.date-range{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:6px}.date-range-separator{display:block;padding-bottom:10px}.date-range label{font-size:.75rem}.waterfall-row{grid-template-columns:minmax(0,1fr) minmax(35px,.7fr) minmax(72px,.9fr);gap:5px}.waterfall-amount{white-space:normal;overflow-wrap:anywhere;line-height:1.25}}

.work-calendar-panel{margin:18px 0;padding:18px;border:1px solid #d9d9f1;border-radius:14px;background:linear-gradient(135deg,#f2f7ff,#fff7f2)}
.work-calendar-panel h3{margin:0 0 5px}
.calendar-leave-range{display:inline-block;margin:10px 0;padding:7px 12px;border-radius:99px;background:#e9e4ff;color:#51429a;font-weight:700;font-size:.85rem}
.calendar-leave-months{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 12px}
.calendar-month-tab{border:1px solid #d6d2ee;background:#fff;border-radius:99px;padding:4px 10px;color:#5b5681;font:inherit;font-size:.75rem;cursor:pointer}
.calendar-month-tab.active{background:#7064c2;border-color:#7064c2;color:#fff}
.calendar-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:8px 0 13px}
.calendar-toolbar strong{min-width:95px;text-align:center}
.calendar-toolbar .button{min-height:36px;padding:5px 11px}
.calendar-legend{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0;font-size:.75rem}
.calendar-legend span{padding:2px 9px;border-radius:99px;border:1px solid #dedcec;background:#fff}
.calendar-legend-leave{box-shadow:inset 0 -4px #ab99eb}
.calendar-legend-holiday{color:#a84859}
.calendar-legend-workday{color:#326d5c}
.calendar-legend-edited{outline:2px solid #e9a150;outline-offset:-2px}
.work-calendar{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:5px;max-width:620px}
.calendar-weekday{text-align:center;font-weight:700;font-size:.75rem;color:#5e607c;padding:3px}
.calendar-weekday:first-child,.calendar-weekday:last-of-type{color:#b15366}
.calendar-day{position:relative;min-height:56px;border-radius:9px;border:1px solid #d7e7df;background:#f2fbf6;color:#275b4d;cursor:pointer;display:grid;place-content:center;gap:0;font:inherit;line-height:1.2}
.calendar-day strong{font-size:.95rem}.calendar-day small{font-size:.64rem;font-weight:650}
.calendar-day.is-holiday{background:#fff0f0;border-color:#f5d5da;color:#a3485c}
.calendar-day.is-leave{box-shadow:inset 0 -5px #a594e6}
.calendar-day.is-edited{outline:2px solid #e9a150;outline-offset:-2px}
.calendar-day:hover{filter:brightness(.96)}
@media(max-width:520px){.work-calendar-panel{padding:13px 10px}.work-calendar{gap:3px}.calendar-day{min-height:48px}.calendar-day strong{font-size:.82rem}.calendar-day small{font-size:.57rem}}
.ranking-panel{border:1px solid #d9e2ee;border-radius:14px;padding:18px;margin:18px 0;background:linear-gradient(135deg,#f5faff,#fff9f6)}
.ranking-panel h3{margin:0 0 5px}
.explore-controls{display:flex;align-items:end;gap:10px;flex-wrap:wrap;margin:14px 0}
.explore-controls label{display:grid;gap:3px;font-size:.82rem;font-weight:700}
.explore-controls input{width:142px;max-width:100%;min-height:42px;padding:7px 9px;border:1px solid #c7d3df;border-radius:8px;background:white;font:inherit}
#ranking-top table{width:100%;white-space:normal}
#ranking-top tr:first-child{background:#eaf8f0}
#ranking-all summary{cursor:pointer;font-weight:700;margin-top:10px}
.ranking-panel tbody button{font:inherit;border:1px solid #c7d3df;border-radius:7px;background:white;padding:5px 8px;cursor:pointer}
.scatter-panel{border:1px solid #d5e7df;border-radius:14px;padding:18px;margin:18px 0;background:linear-gradient(145deg,#f2fbf7,#fff)}
.scatter-panel h3{margin:0 0 5px}
.scatter-legend{display:flex;gap:10px 18px;flex-wrap:wrap;margin:15px 0 8px;font-size:.79rem;font-weight:700;color:#38515a}
.scatter-legend span{display:inline-flex;align-items:center;gap:6px}
.scatter-legend i{display:inline-block;width:17px;height:17px;flex:none;border-radius:4px}
.scatter-density-low{background:#dceee8;border:1px solid #b7d3c8}
.scatter-density-high{background:#168373}
.scatter-pareto{background:#e7a72b;transform:rotate(45deg);width:13px!important;height:13px!important;margin:2px 4px}
.scatter-toolbar{display:flex;gap:14px 24px;align-items:end;flex-wrap:wrap;margin:12px 0 14px}
.scatter-toggle{display:inline-flex;align-items:center;gap:8px;margin:0 0 4px;font-weight:700;font-size:.85rem;cursor:pointer}
.scatter-toggle input{width:18px;height:18px;accent-color:#23846d}
.scatter-chart-wrap{border:1px solid #d4e3dc;border-radius:10px;background:#fff;padding:8px;overflow:auto}
#scatter-canvas{display:block;width:960px;height:520px;max-width:none;cursor:crosshair;touch-action:manipulation}
.scatter-recommendation{margin-top:12px;padding:12px 14px;background:#f5f0ff;border-left:4px solid #765ab8;border-radius:7px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.scatter-recommendation p{margin:0;font-weight:700;flex:1 1 260px}
.scatter-selected{margin-top:12px;padding:12px 14px;background:#eaf6f0;border-left:4px solid #27866e;border-radius:7px}
.scatter-selected p{margin:0 0 10px;font-weight:700}
.scatter-actions{display:flex;gap:8px;flex-wrap:wrap}
.scatter-actions .button{font-size:.78rem;padding:8px 10px}
@media(max-width:520px){.ranking-panel{padding:14px 10px}.explore-controls .button{flex:1 1 130px}}
@media(max-width:520px){.scatter-panel{padding:14px 10px}.scatter-actions .button{flex:1 1 140px}}