.ab-calc{--calc-accent:var(--ab-accent-cyan);display:flex;flex-direction:column;gap:var(--ab-space-3);min-height:0;overflow:hidden}.ab-calc__head{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"title copy" "strip strip";gap:var(--ab-space-2) var(--ab-space-4);align-items:end}.ab-calc__head--hub{grid-template-columns:minmax(0,1fr);grid-template-areas:"title"}.ab-calc__title{grid-area:title;min-width:0}.ab-calc__eyebrow{margin:0;font-size:var(--ab-text-micro);letter-spacing:.14em;text-transform:uppercase;color:var(--calc-accent);font-weight:600}.ab-calc__title h1{margin:2px 0 0;font-family:var(--ab-font-display);font-size:clamp(1.35rem,2.4vw,2rem);line-height:1.1;letter-spacing:-.01em;color:var(--ab-text-primary);text-wrap:balance}.ab-calc__lede{margin:4px 0 0;color:var(--ab-text-secondary);max-width:70ch;font-size:var(--ab-text-body-sm)}.ab-calc__copy,.ab-calc__method-btn{grid-area:copy;border:1px solid var(--ab-border-soft);background:transparent;color:var(--ab-text-secondary);border-radius:var(--ab-radius-md);padding:6px 12px;font:inherit;font-size:var(--ab-text-label);cursor:pointer;min-height:36px;white-space:nowrap}.ab-calc__copy:hover,.ab-calc__method-btn:hover{border-color:var(--calc-accent);color:var(--ab-text-primary)}.ab-calc-strip{grid-area:strip;display:flex;gap:6px;overflow-x:auto;scrollbar-width:thin;padding-bottom:2px;min-width:0}.ab-calc-strip a{--chip-accent:var(--ab-accent-cyan);flex:none;display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;border:1px solid color-mix(in srgb,var(--chip-accent) 40%,transparent);color:var(--ab-text-secondary);font-size:var(--ab-text-label-sm);text-decoration:none;background:color-mix(in srgb,var(--chip-accent) 7%,transparent)}.ab-calc-strip a .ab-calc-icon{color:var(--chip-accent)}.ab-calc-strip a:hover{border-color:var(--chip-accent);color:var(--ab-text-primary)}.ab-calc-strip a[aria-current=page]{background:var(--chip-accent);border-color:var(--chip-accent);color:var(--ab-text-inverse);font-weight:600}.ab-calc-strip a[aria-current=page] .ab-calc-icon{color:var(--ab-text-inverse)}.ab-calc__notice{margin:0;padding:6px 10px;border-radius:var(--ab-radius-sm);background:var(--ab-status-caution-soft);color:var(--ab-status-caution);font-size:var(--ab-text-label-sm)}.ab-calc__bench{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:minmax(270px,330px) minmax(0,1fr);gap:var(--ab-space-3)}.ab-calc__console{min-height:0;overflow-y:auto;overscroll-behavior:contain;border:1px solid var(--ab-border-subtle);border-radius:var(--ab-radius-lg);background:linear-gradient(180deg,var(--ab-panel-fill-a),var(--ab-panel-fill-b));padding:4px 14px 12px}.ab-calc__section{padding:10px 0;border-bottom:1px solid var(--ab-border-subtle);display:grid;gap:8px}.ab-calc__section:last-of-type{border-bottom:0}.ab-calc__section h2{margin:0;font-size:var(--ab-text-micro);letter-spacing:.14em;text-transform:uppercase;color:var(--calc-accent);font-weight:600}.ab-calc-field__head{display:flex;justify-content:space-between;align-items:center;gap:8px}.ab-calc-field__head label{font-size:var(--ab-text-label-sm);color:var(--ab-text-secondary)}.ab-calc-field__num{display:inline-flex;align-items:center;border:1px solid var(--ab-border-soft);border-radius:var(--ab-radius-sm);background:var(--ab-bg-deep-recess);padding-right:8px}.ab-calc-field__num input{width:78px;background:transparent;border:0;color:var(--ab-text-primary);font:500 .92rem var(--ab-font-mono);text-align:right;padding:4px 6px;outline:none}.ab-calc-field__num span{color:var(--ab-text-muted);font-size:var(--ab-text-micro)}.ab-calc-field__num:focus-within{border-color:var(--calc-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--calc-accent) 22%,transparent)}.ab-calc-field.is-bad .ab-calc-field__num{border-color:var(--ab-status-blocker)}.ab-calc-field__err{margin:2px 0 0;color:var(--ab-status-blocker);font-size:var(--ab-text-micro)}.ab-calc-field input[type=range]{appearance:none;width:100%;height:22px;background:transparent;margin:2px 0 0;cursor:pointer}.ab-calc-field input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:2px;background:linear-gradient(90deg,var(--calc-accent) var(--p,50%),var(--ab-border-soft) var(--p,50%))}.ab-calc-field input[type=range]::-moz-range-track{height:4px;border-radius:2px;background:var(--ab-border-soft)}.ab-calc-field input[type=range]::-moz-range-progress{height:4px;border-radius:2px;background:var(--calc-accent)}.ab-calc-field input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--ab-text-primary);border:3px solid var(--calc-accent);margin-top:-6px}.ab-calc-field input[type=range]::-moz-range-thumb{width:11px;height:11px;border-radius:50%;background:var(--ab-text-primary);border:3px solid var(--calc-accent)}.ab-calc-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px}.ab-calc-row__label{font-size:var(--ab-text-label-sm);color:var(--ab-text-secondary)}.ab-calc-chips{display:flex;flex-wrap:wrap;gap:5px}.ab-calc-chips button{border:1px solid var(--ab-border-soft);background:var(--ab-bg-deep-recess);color:var(--ab-text-secondary);border-radius:999px;padding:3px 10px;font:inherit;font-size:var(--ab-text-micro-lg);cursor:pointer;min-height:28px}.ab-calc-chips button[aria-pressed=true]{background:color-mix(in srgb,var(--calc-accent) 22%,transparent);border-color:var(--calc-accent);color:var(--ab-text-primary)}.ab-calc-hint{margin:0;color:var(--ab-text-muted);font-size:var(--ab-text-micro-lg)}.ab-calc-gear{position:relative}.ab-calc-gear__btn{width:100%;display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-areas:"label label" "name name" "sub sub";text-align:left;gap:1px;border:1px solid var(--ab-border-soft);background:var(--ab-bg-deep-recess);color:var(--ab-text-primary);border-radius:var(--ab-radius-md);padding:7px 10px;font:inherit;cursor:pointer}.ab-calc-gear__btn:hover,.ab-calc-gear__btn[aria-expanded=true]{border-color:var(--calc-accent)}.ab-calc-gear__label{grid-area:label;font-size:var(--ab-text-nano);letter-spacing:.12em;text-transform:uppercase;color:var(--ab-text-muted)}.ab-calc-gear__name{grid-area:name;font-size:var(--ab-text-label);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ab-calc-gear__sub{grid-area:sub;font:.72rem var(--ab-font-mono);color:var(--ab-text-muted)}.ab-calc-menu{position:absolute;z-index:30;left:0;right:0;top:calc(100% + 4px);border:1px solid var(--calc-accent);border-radius:var(--ab-radius-md);background:var(--ab-bg-overlay);box-shadow:var(--ab-shadow-1);overflow:hidden;min-width:240px}.ab-calc-menu input{width:100%;border:0;border-bottom:1px solid var(--ab-border-soft);background:var(--ab-bg-strong);color:var(--ab-text-primary);padding:8px 10px;font:inherit;outline:none}.ab-calc-menu ul{list-style:none;margin:0;padding:0;max-height:240px;overflow-y:auto}.ab-calc-menu li button{width:100%;text-align:left;border:0;border-bottom:1px solid var(--ab-border-subtle);background:transparent;color:var(--ab-text-secondary);padding:7px 10px;font:inherit;font-size:var(--ab-text-label-sm);cursor:pointer}.ab-calc-menu li button:focus-visible,.ab-calc-menu li button:hover{background:color-mix(in srgb,var(--calc-accent) 14%,transparent);color:var(--ab-text-primary)}.ab-calc-menu__foot{margin:0;padding:6px 10px;font-size:var(--ab-text-micro);color:var(--ab-text-muted)}.ab-calc-object{position:relative;display:grid;gap:4px}.ab-calc-object__label{font-size:var(--ab-text-label-sm);color:var(--ab-text-secondary)}.ab-calc-object input{width:100%;border:1px solid var(--ab-border-soft);border-radius:var(--ab-radius-md);background:var(--ab-bg-deep-recess);color:var(--ab-text-primary);padding:8px 10px;font:inherit}.ab-calc-object input:focus{outline:none;border-color:var(--calc-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--calc-accent) 22%,transparent)}.ab-calc-object__list{position:absolute;z-index:30;top:100%;left:0;right:0;list-style:none;margin:4px 0 0;padding:0;border:1px solid var(--calc-accent);border-radius:var(--ab-radius-md);background:var(--ab-bg-overlay);box-shadow:var(--ab-shadow-1);max-height:260px;overflow-y:auto}.ab-calc-object__list button{width:100%;display:grid;text-align:left;gap:1px;border:0;border-bottom:1px solid var(--ab-border-subtle);background:transparent;color:var(--ab-text-primary);padding:7px 10px;font:inherit;font-size:var(--ab-text-label-sm);cursor:pointer}.ab-calc-object__list button small{color:var(--ab-text-muted);font-size:var(--ab-text-micro)}.ab-calc-object__list button.is-active,.ab-calc-object__list button:hover{background:color-mix(in srgb,var(--calc-accent) 14%,transparent)}.ab-calc-object__state{padding:7px 10px;color:var(--ab-text-muted);font-size:var(--ab-text-micro-lg)}.ab-calc__view{min-width:0;min-height:0;display:flex;flex-direction:column;border:1px solid color-mix(in srgb,var(--calc-accent) 35%,var(--ab-border-subtle));border-radius:var(--ab-radius-lg);overflow:hidden;background:var(--ab-bg-void)}.ab-calc__stage{position:relative;flex:1 1 auto;min-height:0}.ab-calc-canvas,.ab-calc-sky{position:absolute;inset:0;width:100%;height:100%;display:block}.ab-calc-sky__overlay{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:2}.ab-calc-sky .ab-atlas__credit{z-index:3}.ab-calc__fix{position:absolute;inset:0;margin:0;display:grid;place-items:center;padding:20px;text-align:center;color:var(--ab-status-blocker);background:var(--ab-bg-overlay);font-weight:600;z-index:4}.ab-calc__verdict{position:absolute;top:10px;left:10px;z-index:4;padding:4px 12px;border-radius:999px;font-size:var(--ab-text-label-sm);font-weight:600;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border:1px solid}.ab-calc__verdict--good{color:var(--ab-status-ready);background:var(--ab-status-ready-soft)}.ab-calc__verdict--warn{color:var(--ab-status-caution);background:var(--ab-status-caution-soft)}.ab-calc__verdict--info{color:var(--calc-accent);background:color-mix(in srgb,var(--calc-accent) 16%,transparent)}.ab-calc__readout{flex:none;margin:0;display:flex;flex-wrap:wrap;align-items:flex-end;gap:6px 28px;padding:10px 16px 12px;border-top:1px solid var(--ab-border-subtle);background:linear-gradient(180deg,color-mix(in srgb,var(--calc-accent) 8%,transparent),transparent)}.ab-calc__readout div{min-width:0}.ab-calc__readout dt{font-size:var(--ab-text-nano);letter-spacing:.12em;text-transform:uppercase;color:var(--ab-text-muted)}.ab-calc__readout dd{margin:0;font:500 1.05rem var(--ab-font-mono);color:var(--ab-text-primary)}.ab-calc__readout dd span{font-size:.55em;margin-left:3px;color:var(--calc-accent)}.ab-calc__readout .is-big dd{font-size:clamp(1.6rem,3.2vw,2.5rem);line-height:1;font-weight:600;color:var(--calc-accent);letter-spacing:-.02em}.ab-calc__foot{flex:none;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 14px;align-items:center}.ab-calc__foot .ab-calc__method-btn{grid-row:1/span 2;grid-column:2}.ab-calc__say{margin:0;color:var(--ab-text-primary);font-size:var(--ab-text-body-sm)}.ab-calc__formula{margin:0;font:.8rem var(--ab-font-mono);color:var(--ab-text-secondary);overflow-x:auto;white-space:nowrap}.ab-calc-method{display:grid;gap:6px}.ab-calc-method h3{margin:6px 0 0;font-size:var(--ab-text-micro);letter-spacing:.12em;text-transform:uppercase;color:var(--ab-text-muted)}.ab-calc-method p{margin:0}.ab-calc-method .ab-calc__formula{white-space:normal}.ab-calc-method__related{display:flex;flex-wrap:wrap;gap:6px 12px}.ab-calc-setup{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;align-items:center;border:1px solid var(--ab-border-subtle);border-radius:var(--ab-radius-lg);padding:10px;background:linear-gradient(180deg,var(--ab-panel-fill-a),var(--ab-panel-fill-b))}.ab-calc-setup--sheet{grid-template-columns:minmax(0,1fr);border:0;padding:0;background:none}.ab-calc-setup-summary{display:none}.ab-calc-tiles{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));gap:10px}.ab-calc-tile{--calc-accent:var(--ab-accent-cyan);position:relative;min-height:0;min-width:0;display:flex;flex-direction:column;border-radius:var(--ab-radius-lg);overflow:hidden;border:1px solid color-mix(in srgb,var(--calc-accent) 35%,var(--ab-border-subtle));background:var(--ab-bg-void);color:var(--ab-text-primary);text-decoration:none;transition:border-color var(--ab-motion-fast),transform var(--ab-motion-fast)}.ab-calc-tile:focus-visible,.ab-calc-tile:hover{border-color:var(--calc-accent);transform:translateY(-2px)}.ab-calc-tile__art{position:relative;flex:1 1 auto;min-height:0}.ab-calc-tile__text{flex:none;display:flex;justify-content:space-between;align-items:baseline;gap:6px;padding:7px 10px;background:linear-gradient(180deg,color-mix(in srgb,var(--calc-accent) 12%,transparent),transparent);border-top:1px solid var(--ab-border-subtle)}.ab-calc-tile__name{display:inline-flex;align-items:center;gap:6px;font-size:var(--ab-text-label-sm);font-weight:600;min-width:0}.ab-calc-tile__name .ab-calc-icon{color:var(--calc-accent);flex:none}.ab-calc-tile__value{font:600 .95rem var(--ab-font-mono);color:var(--calc-accent);white-space:nowrap}.ab-calc-tile__value small{font-size:.65em;margin-left:2px}@media (max-width:1100px){.ab-calc-setup{grid-template-columns:repeat(3,minmax(0,1fr))}.ab-calc-tiles{grid-template-columns:repeat(4,minmax(0,1fr));grid-template-rows:repeat(3,minmax(0,1fr))}}@media (max-width:767px){.ab-calc{gap:var(--ab-space-2)}.ab-calc__lede{display:none}.ab-calc__bench{display:flex;flex-direction:column;gap:var(--ab-space-2)}.ab-calc__view{order:-1;flex:0 0 auto;height:50%;min-height:0}.ab-calc__readout{gap:2px 16px;padding:6px 10px 8px}.ab-calc__readout .is-big dd{font-size:1.5rem}.ab-calc__console{flex:1 1 auto}.ab-calc__foot .ab-calc__formula{display:none}.ab-calc__say{font-size:var(--ab-text-label-sm);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.ab-calc-setup:not(.ab-calc-setup--sheet){display:none}.ab-calc-setup-summary{display:grid;gap:1px;text-align:left;border:1px solid var(--ab-border-soft);border-radius:var(--ab-radius-md);background:var(--ab-bg-deep-recess);color:var(--ab-text-primary);padding:7px 10px;font:inherit;cursor:pointer}.ab-calc-setup-summary span{font-size:var(--ab-text-nano);letter-spacing:.12em;text-transform:uppercase;color:var(--ab-text-muted)}.ab-calc-setup-summary b{font-weight:500;font-size:var(--ab-text-label-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ab-calc-tiles{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(5,minmax(0,1fr));gap:8px}.ab-calc-tile__text{padding:5px 8px;flex-wrap:wrap}.ab-calc-tile__name{font-size:var(--ab-text-micro-lg)}.ab-calc-tile__value{font-size:.8rem}}@media (prefers-reduced-motion:reduce){.ab-calc-tile{transition:none}.ab-calc-tile:hover{transform:none}}.ab-calc-row .ab-calc-field{flex:1 1 100%}