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0;max-width:34em;min-height:2.7em;color:var(--text-muted);font-size:12.5px;line-height:1.35}.visually-hidden-desc{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.upset-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.upset-svg{display:block;max-width:none}body.upset-wide #leftColumn{max-width:none}body.upset-wide #rightColumn{display:none}.upset-wide-toggle[aria-pressed=true]{background:var(--accent-soft)}@media (max-width: 1200px){.upset-wide-toggle{display:none}}.upset-virtual{position:relative}.upset-virtual>.upset-svg{position:sticky;left:0}.upset-virtual~.upset-note{position:sticky;left:0;box-sizing:border-box;max-width:100%}.upset-bar{cursor:pointer;outline:none}.upset-bar:focus-visible .upset-hit{stroke:light-dark(#1a5fb4,#8cc4ff);stroke-width:2}.upset-note{margin:4px 12px 8px;font-size:.85rem;color:var(--text-muted)}.upset-show-more{display:flex;align-items:center;flex-wrap:wrap;gap:6px}.upset-show-more 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.tour-row-status{color:light-dark(#8a4b00,#f0b86e)}.tour-row-extra.btn{padding:2px 8px;font-size:12.5px}.tour-row-desc{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.tour-list-hint{min-height:2.9em;margin:6px 2px 0;font-size:13px;line-height:1.45;color:var(--text-muted)}.tour-shield{position:fixed;top:0;right:0;bottom:0;left:0;background:transparent;cursor:progress}.tour-demo-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:10px;padding-top:8px;border-top:1px solid var(--hairline)}.tour-demo-status{margin:0;min-width:0;font-size:13px;line-height:1.35;color:var(--text-muted)}.tour-demo-bar .btn{flex:none}.tour-cursor{position:fixed;left:0;top:0;z-index:1;width:0;height:0;pointer-events:none;transition-property:transform;transition-timing-function:cubic-bezier(.3,.1,.2,1)}.tour-cursor[data-motion=jump]{transition:none}.tour-cursor-arrow{position:absolute;left:0;top:0;fill:var(--text);stroke:var(--surface);stroke-width:1.5;stroke-linejoin:round}.tour-ripple{position:absolute;left:-14px;top:-14px;width:28px;height:28px;box-sizing:border-box;border-radius:50%;border:2px solid var(--text);background:transparent;animation:tour-ripple .45s ease-out forwards}.tour-ripple[data-static]{animation:none}@keyframes tour-ripple{0%{transform:scale(.3);opacity:.9}to{transform:scale(1.6);opacity:0}}@media (prefers-reduced-motion: reduce){.tour-cursor{transition:none}.tour-ripple{animation:none}}:root{color-scheme:light dark}:root[data-theme=light]{color-scheme:light}:root[data-theme=dark]{color-scheme:dark}@media print{:root,:root[data-theme=dark]{color-scheme:light}}:root{--page: light-dark(#fafaf8, #16181d);--surface: light-dark(#ffffff, #1b2029);--surface-2: light-dark(#f3f3f0, #232a35);--header-surface: light-dark(#fafaf8, #16181d);--hairline: light-dark(#e2e2dd, #2e3746);--border-strong: light-dark(#7d8189, #6b798c);--text: light-dark(#17191c, #e3e9f0);--text-muted: light-dark(#5a5f66, #9eabbb);--accent: light-dark(#1d2126, #e6e8ec);--accent-hover: light-dark(#000000, #ffffff);--accent-soft: light-dark(#eeeeea, #262a31);--accent-fill: light-dark(#1d2126, #e6e8ec);--accent-fill-hover: light-dark(#000000, #ffffff);--on-accent: light-dark(#ffffff, #16181d);--page-glow: radial-gradient(900px 420px at 8% -8%, light-dark(rgba(0, 114, 178, .1), rgba(0, 114, 178, .16)), transparent 60%), radial-gradient(700px 380px at 100% -6%, light-dark(rgba(230, 159, 0, .09), rgba(230, 159, 0, .1)), transparent 60%);--radius: 6px;--radius-card: 8px;--focus-ring: 2px solid var(--accent);--diagram-background: light-dark(#ffffff, #16181d);--body-background: var(--page);--content-background: var(--surface);--right-column-background: var(--surface);--primary-text: var(--text);--secondary-text: var(--text-muted);--link-color: var(--accent);--link-hover-color: var(--accent-hover);--border-color: var(--hairline);--input-border: var(--border-strong);--input-background: var(--surface);--focus-border: var(--accent);--primary-button: var(--accent-fill);--primary-button-hover: var(--accent-fill-hover);--success: light-dark(#38a169, #2a965f);--warning: light-dark(#d69e2e, #aa7500);--error: light-dark(#e53e3e, #e0393a)}.btn{--btn-tone: var(--border-strong);display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:36px;padding:6px 14px;font:inherit;font-size:14px;font-weight:500;line-height:1.2;color:var(--text);background:var(--surface);border:1px solid var(--btn-tone);border-radius:var(--radius);box-shadow:none;cursor:pointer;text-decoration:none;transition:background-color .15s ease,border-color .15s ease,color .15s ease}.btn:hover:not(:disabled):not([aria-disabled=true]){background:var(--surface-2)}.btn:focus-visible{outline:var(--focus-ring);outline-offset:2px}.btn:disabled,.btn[aria-disabled=true]{opacity:.55;cursor:not-allowed}.btn .icon{flex:none;color:var(--text-muted)}.btn-primary{color:var(--on-accent);background:var(--accent-fill);border-color:var(--accent-fill)}.btn-primary:hover:not(:disabled):not([aria-disabled=true]){color:var(--on-accent);background:var(--accent-fill-hover);border-color:var(--accent-fill-hover)}.btn-primary .icon{color:currentColor}.btn-danger{--btn-tone: light-dark(#c53030, #f7857c);color:light-dark(#c53030,#f7857c)}.btn-danger .icon{color:currentColor}.btn-danger:hover:not(:disabled):not([aria-disabled=true]){background:light-dark(#fff5f5,#2a1f22)}.btn-icon{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;color:var(--text-muted);background:transparent;border:none;border-radius:var(--radius);cursor:pointer;transition:background-color .12s ease,color .12s ease}.btn-icon .icon{width:18px;height:18px}.btn-icon:hover{background:var(--surface-2);color:var(--text)}.btn-icon:focus{outline:none}.btn-icon:focus-visible{outline:var(--focus-ring);outline-offset:2px}.icon.inline-icon{vertical-align:-.15em;color:var(--text-muted)}.icon.inline-icon.ok{color:light-dark(#2f855a,#6cbf91)}.icon.inline-icon.bad{color:light-dark(#c53030,#f7857c)}.duplicate-title{display:flex;align-items:center;gap:8px}.duplicate-title .icon{color:light-dark(#c53030,#f7857c);flex:none}.btn.shuffle-button{white-space:nowrap}.btn.btn-small{min-height:28px;gap:6px;padding:3px 10px;font-size:12px}