:root{--bg: #ffffff;--fg: #1b1f24;--muted: #5b6470;--border: #e3e6ea;--surface: #f6f7f9;--surface-2: #ffffff;--c-principal: #8a8f98;--c-rate-a: #2f6fed;--c-rate-b: #1f9d6a;--c-rate-c: #d9731a;--c-warn: #b45309;--c-warn-bg: #fff7ed;--c-warn-border: #fcd9b6;--focus: #2f6fed;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 2px rgba(0, 0, 0, .06);--font-sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", Meiryo, system-ui, -apple-system, "Segoe UI", sans-serif}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #111418;--fg: #e8eaed;--muted: #9aa3ad;--border: #2a2f36;--surface: #181c22;--surface-2: #1f242b;--c-warn: #f4b36b;--c-warn-bg: #2b2014;--c-warn-border: #5a4020;--shadow: none;color-scheme:dark}}:root[data-theme=dark]{--bg: #111418;--fg: #e8eaed;--muted: #9aa3ad;--border: #2a2f36;--surface: #181c22;--surface-2: #1f242b;--c-warn: #f4b36b;--c-warn-bg: #2b2014;--c-warn-border: #5a4020;--shadow: none;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-sans);font-size:16px;line-height:1.6;font-variant-numeric:tabular-nums}h1,h2,h3{margin:0;line-height:1.3}button,input{font:inherit;color:inherit}:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.app{max-width:1280px;margin:0 auto;padding-block:16px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}.app-header{padding:0 0 16px}.fv{display:block;border-radius:var(--radius);overflow:hidden;background:var(--surface)}.fv img{display:block;width:100%;height:auto;max-width:100%}.app-main{display:grid;gap:20px;grid-template-columns:1fr}.results{display:grid;gap:20px;min-width:0}.results>*{min-width:0}@media(min-width:960px){.app{padding-block:24px;padding-left:max(24px,env(safe-area-inset-left,0px));padding-right:max(24px,env(safe-area-inset-right,0px))}.app-main{grid-template-columns:360px minmax(0,1fr);align-items:start}.input-panel{position:sticky;top:16px}}.card{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.section-title{font-size:1.05rem;font-weight:600}.muted{color:var(--muted)}.input-panel{display:grid;gap:18px}.input-panel .field-group{display:grid;gap:14px}.input-panel .group-title{font-size:.95rem;font-weight:600;margin-top:4px}.panel-actions{display:flex;flex-wrap:wrap;gap:8px}.btn{appearance:none;border:1px solid var(--border);background:var(--surface);border-radius:var(--radius-sm);padding:8px 14px;cursor:pointer;min-height:40px}.btn:hover{filter:brightness(.97)}.btn-primary{background:var(--c-rate-a);border-color:var(--c-rate-a);color:#fff}.btn-primary:hover{filter:brightness(1.05)}.csv-text{width:100%;min-height:160px;margin-top:8px;font-family:ui-monospace,Consolas,monospace;font-size:.8rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--fg);padding:8px}.copy-fallback{font-size:.85rem;word-break:break-all;user-select:all;padding:8px;background:var(--surface);border-radius:var(--radius-sm)}.snf{display:grid;gap:6px}.snf-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.snf-label{font-weight:600;display:inline-flex;align-items:center;gap:8px}.snf-swatch{width:12px;height:12px;border-radius:3px;display:inline-block}.snf-hint{color:var(--muted);font-size:.9rem}.snf-controls{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center}.snf-range{--track: var(--border);--fill: var(--accent, var(--c-rate-a));width:100%;min-width:0;margin:0;height:32px;background:transparent;-webkit-appearance:none;appearance:none;cursor:pointer}.snf-range::-webkit-slider-runnable-track{height:6px;border-radius:999px;background:linear-gradient(to right,var(--fill) 0%,var(--fill) var(--pct, 0%),var(--track) var(--pct, 0%),var(--track) 100%)}.snf-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;margin-top:-7px;border-radius:50%;background:var(--fill);border:2px solid var(--bg);box-shadow:0 0 0 1px var(--fill)}.snf-range::-moz-range-track{height:6px;border-radius:999px;background:var(--track)}.snf-range::-moz-range-progress{height:6px;border-radius:999px;background:var(--fill)}.snf-range::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--fill);border:2px solid var(--bg);box-shadow:0 0 0 1px var(--fill)}.snf-range:focus-visible{outline-offset:0}.snf-number-wrap{display:inline-flex;align-items:center;gap:4px}.snf-number{width:7.5em;padding:6px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);text-align:right;min-height:40px}.snf-number.is-wide{width:8.5em}.snf-unit{color:var(--muted)}.snf-message{color:var(--c-warn);font-size:.85rem;margin:0}.summary h2{font-size:1.15rem}.summary-sub{margin:2px 0 12px;color:var(--muted);font-size:.9rem}.summary-grid{display:grid;gap:12px;grid-template-columns:1fr}@media(min-width:640px){.summary-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}.pattern-card{border:1px solid var(--border);border-top:4px solid var(--accent);border-radius:var(--radius);padding:14px;background:var(--surface);display:grid;gap:6px;min-width:0}.pattern-card .pc-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.pattern-card .pc-label{font-weight:600;color:var(--accent)}.pattern-card .pc-rate{color:var(--muted);font-size:.95rem}.pattern-card .pc-final{font-size:1.6rem;font-weight:700;letter-spacing:-.01em;line-height:1.2;overflow-wrap:anywhere}.pattern-card .pc-final-yen{color:var(--muted);font-size:.85rem}.pattern-card dl{margin:6px 0 0;display:grid;grid-template-columns:auto 1fr;gap:2px 10px;font-size:.95rem}.pattern-card dt{color:var(--muted)}.pattern-card dd{margin:0;text-align:right}.pattern-card .pc-multiple{font-weight:600}.warnings{display:grid;gap:8px}.warning{background:var(--c-warn-bg);border:1px solid var(--c-warn-border);color:var(--c-warn);border-radius:var(--radius-sm);padding:10px 12px;margin:0;display:flex;gap:8px;align-items:flex-start}.charts-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.tab{appearance:none;border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:6px 14px;cursor:pointer}.tab[aria-selected=true]{background:var(--fg);color:var(--bg);border-color:var(--fg)}.chart-area{width:100%;height:320px}@media(max-width:639px){.chart-area{height:260px}}.chart-fallback{display:grid;place-items:center;height:160px;color:var(--muted);text-align:center;padding:16px}.segmented{display:inline-flex;gap:4px;margin-bottom:8px;flex-wrap:wrap}.seg{appearance:none;border:1px solid var(--border);background:var(--surface);border-radius:var(--radius-sm);padding:4px 10px;cursor:pointer}.seg[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}.recharts-tooltip-wrapper .tt{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 10px;font-size:.9rem;box-shadow:var(--shadow)}.tt-title{font-weight:600;margin-bottom:4px}.tt-row{display:flex;justify-content:space-between;gap:12px}.yearly summary{cursor:pointer;font-weight:600}.yearly .table-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-top:12px}.yearly .table-wrap{overflow-x:auto;margin-top:8px}.yearly table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:520px}.yearly th,.yearly td{padding:6px 8px;border-bottom:1px solid var(--border);text-align:right;white-space:nowrap}.yearly th:first-child,.yearly td:first-child,.yearly th:nth-child(2),.yearly td:nth-child(2){text-align:left}.yearly thead th{position:sticky;top:0;background:var(--surface-2)}.yearly tbody tr:nth-child(5n) td{border-bottom-color:var(--muted)}.yearly tfoot td{font-weight:600}.th-accent{border-top:3px solid var(--accent)}.disclaimer{margin-top:28px;padding:16px 0 24px;border-top:1px solid var(--border);color:var(--muted);font-size:.85rem}.disclaimer ul{margin:0;padding-left:1.2em}.disclaimer a{color:inherit}