:root{--bg: #0f172a;--panel: #1e293b;--panel-2: #273449;--line: #334155;--text: #f1f5f9;--muted: #94a3b8;--up: #22c55e;--up-press: #16a34a;--down: #f97316;--down-press: #ea580c;--accent: #38bdf8;--danger: #ef4444;--radius: 18px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Segoe UI,sans-serif;overscroll-behavior:none;user-select:none;-webkit-user-select:none}.app{height:100%;width:100%;overflow:hidden;display:flex;flex-direction:column;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.topbar{flex:0 0 auto;display:flex;align-items:center;gap:14px;padding:10px 18px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:19px;flex:0 0 auto}.brand-icon{font-size:22px}.brand-name{letter-spacing:.04em}.tabs{flex:1 1 auto;display:flex;align-items:stretch;gap:10px;overflow-x:auto;padding:4px 2px;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tab{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-start;gap:2px;min-width:116px;padding:8px 16px;background:var(--panel);border:1px solid var(--line);border-radius:14px;color:var(--text);cursor:pointer;transition:background .12s,border-color .12s}.tab-active{background:var(--panel-2);border-color:var(--accent)}.tab-name{font-size:14px;font-weight:600;white-space:nowrap;max-width:160px;overflow:hidden;text-overflow:ellipsis}.tab-head{display:flex;align-items:center;gap:6px;max-width:200px}.tab-edit{flex:0 0 auto;font-size:12px;color:var(--accent);opacity:.85}.tab-count{font-size:18px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}.tab-add{min-width:54px;align-items:center;justify-content:center;font-size:26px;color:var(--muted);font-weight:400}.icon-btn{flex:0 0 auto;width:48px;height:48px;display:grid;place-items:center;font-size:22px;background:var(--panel);border:1px solid var(--line);border-radius:14px;color:var(--text);cursor:pointer}.icon-btn:active{background:var(--panel-2)}.stage{flex:1 1 auto;display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:18px;min-height:0}.display{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:20px;min-width:0;min-height:0;overflow:hidden}.count-box{flex:1 1 auto;width:100%;min-height:0;display:grid;place-items:center;overflow:hidden}.count{font-size:100px;line-height:1;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:#fff;white-space:nowrap}.unit{font-size:clamp(18px,3vw,30px);color:var(--muted);font-weight:600;margin-bottom:14px}.actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.action{padding:14px 22px;font-size:17px;font-weight:600;background:var(--panel-2);border:1px solid var(--line);border-radius:14px;color:var(--text);cursor:pointer;min-height:54px}.action:active:not(:disabled){background:#31415a}.action:disabled{opacity:.38;cursor:default}.action-reset{color:var(--down);border-color:#5a3a26}.pad{display:flex;flex-direction:column;gap:14px;min-width:0;min-height:0}.step-row{flex:1 1 0;display:grid;grid-template-columns:1fr 1fr;gap:14px;min-height:0}.big-btn{display:flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:var(--radius);color:#fff;cursor:pointer;font-weight:800;box-shadow:0 6px #00000040;transition:transform .05s,box-shadow .05s,filter .1s;-webkit-user-select:none;user-select:none}.big-btn:active{transform:translateY(4px);box-shadow:0 2px #00000040;filter:brightness(1.08)}.big-btn .sign{font-size:clamp(28px,5vw,48px);font-weight:600;opacity:.9}.big-btn .num{font-size:clamp(40px,8vw,76px);font-variant-numeric:tabular-nums}.up{background:linear-gradient(180deg,#2ee06a,var(--up))}.down{background:linear-gradient(180deg,#fb8c3e,var(--down))}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:grid;place-items:center;padding:24px;z-index:10;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.sheet{width:min(560px,100%);max-height:90vh;overflow-y:auto;background:var(--panel);border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 60px #00000080}.sheet-head{position:sticky;top:0;background:var(--panel);display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}.sheet-head h2{margin:0;font-size:20px}.sheet-body{padding:20px;display:flex;flex-direction:column;gap:22px}.field-grid{display:grid;grid-template-columns:2fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:8px}.field-label{font-size:14px;color:var(--muted);font-weight:600}.field input,.step-edit input{background:var(--bg);border:1px solid var(--line);border-radius:12px;color:var(--text);font-size:18px;padding:14px;width:100%}.field input:focus,.step-edit input:focus{outline:2px solid var(--accent);outline-offset:-1px}.field-hint{font-size:13px;color:var(--muted);line-height:1.5}.initial-edit{display:flex;gap:12px;align-items:stretch}.initial-edit input{width:140px;font-weight:700;text-align:center;font-size:20px}.apply-initial{flex:1 1 auto;padding:0 18px;border-radius:12px;border:1px solid var(--accent);background:transparent;color:var(--accent);font-weight:700;font-size:16px;cursor:pointer;font-variant-numeric:tabular-nums}.apply-initial:active:not(:disabled){background:#38bdf81f}.apply-initial:disabled{opacity:.4;cursor:default}.steps-edit{display:flex;flex-wrap:wrap;gap:12px}.step-edit{display:flex;align-items:center;gap:6px}.step-edit input{width:110px;font-weight:700;text-align:center}.step-del{width:40px;height:48px;border-radius:12px;border:1px solid var(--line);background:var(--panel-2);color:var(--muted);cursor:pointer;font-size:15px}.step-del:disabled{opacity:.3}.step-add{padding:14px 18px;border-radius:12px;border:1px dashed var(--line);background:transparent;color:var(--accent);font-weight:600;font-size:16px;cursor:pointer}.danger{align-self:flex-start;padding:14px 20px;border-radius:12px;border:1px solid #5a2626;background:transparent;color:var(--danger);font-weight:600;font-size:16px;cursor:pointer}.danger:active{background:#ef44441f}.history-meta{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:15px;color:var(--muted);flex-wrap:wrap}.history-meta b{color:var(--text)}.history-total{font-variant-numeric:tabular-nums;white-space:nowrap}.history-empty{text-align:center;color:var(--muted);font-size:16px;line-height:1.7;padding:30px 0;margin:0}.history-list{display:flex;flex-direction:column;gap:18px}.history-group{display:flex;flex-direction:column}.history-date{position:sticky;top:0;background:var(--panel);font-size:13px;font-weight:700;color:var(--accent);padding:6px 2px;letter-spacing:.04em}.history-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:11px 6px;border-bottom:1px solid var(--line)}.history-time{font-variant-numeric:tabular-nums;font-size:15px;color:var(--muted)}.history-op{justify-self:start;font-weight:800;font-size:17px;font-variant-numeric:tabular-nums;padding:4px 12px;border-radius:999px;background:var(--panel-2)}.h-up{color:var(--up)}.h-down,.h-reset{color:var(--down)}.h-set{color:var(--accent)}.h-undo,.h-redo{color:var(--muted)}.history-result{font-variant-numeric:tabular-nums;font-weight:700;font-size:19px}.history-result small{color:var(--muted);font-weight:500;font-size:13px}.dialog{width:min(440px,100%);background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:26px 26px 22px;box-shadow:0 24px 60px #00000080;text-align:center}.dialog-title{margin:0 0 12px;font-size:22px}.dialog-message{margin:0 0 24px;font-size:17px;line-height:1.6;color:var(--muted)}.dialog-message b{color:var(--text);font-variant-numeric:tabular-nums}.dialog-input{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:12px;color:var(--text);font-size:19px;padding:15px 14px;margin-bottom:22px;text-align:center}.dialog-input:focus{outline:2px solid var(--accent);outline-offset:-1px}.dialog-btn:disabled{opacity:.4;cursor:default}.dialog-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.dialog-btn{padding:16px;font-size:17px;font-weight:700;border-radius:14px;border:1px solid var(--line);background:var(--panel-2);color:var(--text);cursor:pointer;min-height:56px}.dialog-btn:active{filter:brightness(1.1)}.dialog-primary{background:var(--accent);border-color:var(--accent);color:#07223a}.dialog-danger{background:var(--danger);border-color:var(--danger);color:#fff}@media (max-aspect-ratio: 1/1){.stage{grid-template-columns:1fr;grid-template-rows:auto 1fr;overflow-y:auto}.display{min-height:38vh}.step-row{min-height:96px}}