.tb-root{container:toolbox/inline-size;display:grid;gap:18px}.tb-panel,.tb-root,.tb-stage{min-width:0}.tb-panel-head{margin-bottom:22px}.tb-panel-head h2,.tb-panel-head h3{font-size:22px;font-weight:650;letter-spacing:-.02em;color:var(--ink-strong)}.tb-panel-head p{margin-top:4px;font-size:13px;line-height:1.6;color:var(--muted)}.tb-root.compact .tb-panel-head{margin-bottom:14px}.tb-root.compact .tb-panel-head h3{font-size:17px}.tb-root.compact .tb-panel-head p{display:none}.tb-hint{font-size:12.5px;line-height:1.6}.tb-hint,.tb-unit{color:var(--muted)}.tb-unit{font-weight:500}.tb-times{font-weight:400}.tb-icon-button{display:inline-grid;place-items:center;flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--sage-100);color:var(--ink);transition:background .15s}.tb-icon-button:hover:not(:disabled){background:var(--sage-200)}.tb-text-button{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 14px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;color:var(--clay);transition:background .15s}.tb-text-button:hover:not(:disabled){background:var(--sage-100)}.tb-chips{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.tb-chips button.studio-chip{min-height:44px}.tb-chips-label{margin-inline-end:4px;font-size:12px;font-weight:600;color:var(--muted)}.studio-tabs.tb-tabs{max-width:100%}.studio-tabs.tb-tabs button{min-height:44px}.studio-tabs.tb-tabs button:not([aria-pressed=true]):hover{background:var(--sage-100)}.studio-tabs.tb-tabs svg{flex-shrink:0}@container toolbox (max-width: 799px){.studio-tabs.tb-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));width:100%;overflow:visible;border-radius:24px}.studio-tabs.tb-tabs button{justify-content:center;padding-inline:8px;border-radius:19px}}@container toolbox (max-width: 479px){.studio-tabs.tb-tabs button{flex-direction:column;gap:3px;min-height:58px;padding:8px 4px;font-size:12px;line-height:1.2;text-align:center}}.tb-calc{display:grid;gap:28px;align-items:start}@container toolbox (min-width: 760px){.tb-calc{grid-template-columns:minmax(0,480px) minmax(0,1fr)}}.tb-calc-main{display:grid;gap:12px;min-width:0}.tb-display{display:grid;gap:4px;padding:12px 16px 14px;border:1px solid var(--sage-300);border-radius:var(--radius-field);background:var(--sage-50);box-shadow:inset 0 2px 0 rgba(38,62,53,.05);font-variant-numeric:tabular-nums;transition:border-color .15s,box-shadow .15s}.tb-display:focus-within{border-color:var(--sage-600);box-shadow:inset 0 2px 0 rgba(38,62,53,.05),0 0 0 3px var(--sage-200)}.tb-display-top{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:22px;font-size:12px;color:var(--muted)}.tb-angle-badge{padding:2px 9px;border-radius:var(--radius-pill);background:var(--forest);color:var(--surface);font-size:11px;font-weight:650}.tb-calc-input{width:100%;min-width:0;min-height:44px;border:0;background:transparent;color:var(--ink-strong);font-size:22px;font-variant-numeric:tabular-nums}.tb-calc-input:focus,.tb-calc-input:focus-visible{outline:none}.tb-calc-input::placeholder{color:var(--muted-soft)}.tb-calc-out{display:flex;align-items:baseline;justify-content:flex-end;gap:10px;min-height:46px;overflow-wrap:anywhere}.tb-calc-eq{font-size:22px;color:var(--muted)}.tb-calc-result{font-size:clamp(24px,7cqi,38px);font-weight:650;line-height:1.15;text-align:end;color:var(--forest)}.tb-calc-result.nonreal{font-size:20px;color:var(--clay)}.tb-calc-note{font-size:13px}.tb-calc-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px}.tb-seg{display:inline-flex;gap:4px;padding:4px;background:var(--sage-100)}.tb-seg,.tb-seg button{border-radius:var(--radius-pill)}.tb-seg button{min-height:44px;padding:6px 16px;font-size:13px;font-weight:600;color:var(--ink);transition:background .15s}.tb-seg button[aria-pressed=true]{background:var(--forest);color:var(--surface)}.tb-keypad{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.tb-key{display:grid;place-items:center;min-width:0;min-height:50px;padding:4px;border:1px solid var(--sage-300);border-radius:16px;background:var(--surface);box-shadow:0 3px 0 var(--sage-300);color:var(--ink-strong);font-size:18px;font-weight:600;line-height:1;touch-action:manipulation;-webkit-user-select:none;user-select:none;transition:background .15s,transform .08s,box-shadow .08s}.tb-key:hover{background:var(--sage-50)}.tb-key:active{transform:translateY(2px);box-shadow:0 1px 0 var(--sage-300)}.tb-key sup{font-size:.62em}.tb-key.fn{background:var(--sage-100);font-size:15px}.tb-key.fn:hover,.tb-key.op{background:var(--sage-200)}.tb-key.op{border-color:var(--sage-400);box-shadow:0 3px 0 var(--sage-400);font-size:20px}.tb-key.op:hover{background:var(--sage-300)}.tb-key.op:active{box-shadow:0 1px 0 var(--sage-400)}.tb-key.clear{border-color:var(--coral-soft);background:var(--coral-soft);box-shadow:0 3px 0 var(--coral);color:var(--clay);font-size:15px}.tb-key.clear:active{box-shadow:0 1px 0 var(--coral)}.tb-key.eq{border-color:var(--coral);background:var(--coral);box-shadow:0 3px 0 var(--clay);color:var(--ink-strong);font-size:24px}.tb-key.eq:hover{background:var(--coral-hover)}.tb-key.eq:active{box-shadow:0 1px 0 var(--clay)}.tb-root.compact .tb-key{min-height:46px}.tb-history{min-width:0}.tb-history h3{font-size:16px;font-weight:650;color:var(--ink-strong)}.tb-history .tb-hint{margin-top:2px}.tb-history ol{display:grid;gap:6px;margin-top:12px}.tb-history button{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;width:100%;min-height:44px;padding:10px 14px;border-radius:var(--radius-small);background:var(--sage-50);font-size:14px;text-align:start;font-variant-numeric:tabular-nums;transition:background .15s}.tb-history button:hover{background:var(--sage-100)}.tb-history-expr{min-width:0;color:var(--muted);overflow-wrap:anywhere}.tb-history-value{margin-inline-start:auto;font-weight:650;color:var(--forest)}.tb-graph{display:grid;gap:20px;align-items:start}@container toolbox (min-width: 860px){.tb-graph{grid-template-columns:minmax(250px,300px) minmax(0,1fr)}}.tb-lines{display:grid;gap:10px;align-content:start;min-width:0}.tb-line{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:8px}.tb-line-name{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;color:var(--ink);font:italic 17px var(--font-serif)}.tb-line-name i,.tb-readout i{display:inline-block;flex-shrink:0;width:12px;height:12px;border-radius:50%}.tb-line-input.studio-field{min-height:48px;font-size:16px;font-variant-numeric:tabular-nums}.tb-line-error{grid-column:1/-1;padding:8px 12px;border-radius:var(--radius-small);background:var(--warn-bg);color:var(--warn);font-size:12.5px;line-height:1.55}.tb-add.studio-button{justify-self:start;gap:8px;min-height:44px}.tb-graph-main{display:grid;gap:10px;min-width:0}.tb-plot{position:relative;overflow:hidden;border:1px solid var(--sage-300);border-radius:var(--radius-field);background:var(--surface);-webkit-user-select:none;user-select:none}.tb-plot svg{display:block;width:100%;height:auto;touch-action:none;cursor:grab}.tb-plot svg:active{cursor:grabbing}.tb-plot svg:focus-visible{outline:3px solid var(--focus);outline-offset:-3px}.tb-grid line{stroke:var(--sage-300);stroke-width:1;opacity:.5}.tb-axis{stroke:var(--sage-600);stroke-width:1.25}.tb-ticks text{fill:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}.tb-axis-name{fill:var(--ink);font:italic 15px var(--font-serif)}.tb-curve{fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}.tb-trace line{stroke:var(--ink);stroke-width:1;stroke-dasharray:3 4;opacity:.45}.tb-trace circle{stroke:var(--surface);stroke-width:2}.tb-graph-bar{flex-wrap:wrap;justify-content:space-between;gap:8px 12px}.tb-graph-bar,.tb-readout{display:flex;align-items:center}.tb-readout{flex:1 1 220px;flex-wrap:wrap;gap:4px 16px;min-height:44px;color:var(--ink);font-size:13.5px;font-variant-numeric:tabular-nums}.tb-readout>span{display:inline-flex;align-items:center;gap:6px}.tb-readout>.tb-hint{display:block;flex:1 1 100%}.tb-zoom{display:inline-flex;gap:6px}.tb-units{display:grid;gap:20px}.tb-units-form{display:grid;gap:12px;align-items:end}@container toolbox (min-width: 640px){.tb-units-form{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr) auto minmax(0,1fr)}}.tb-field{display:grid;gap:6px;min-width:0;color:var(--muted);font-size:12px;font-weight:600}.tb-field .studio-field{min-height:48px;color:var(--ink);font-size:16px;font-weight:500}.tb-swap{justify-self:center;margin-bottom:2px}@container toolbox (max-width: 639px){.tb-swap svg{transform:rotate(90deg)}}.tb-units-answer{display:grid;align-content:center;justify-items:start;gap:4px;min-height:104px;padding:20px 22px;border-radius:var(--radius-panel);background:var(--sage-100)}.tb-units-question{color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums}.tb-units-result{max-width:100%;color:var(--forest);font-size:clamp(26px,6.5cqi,40px);font-weight:650;line-height:1.15;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.tb-units-result .tb-unit{font-size:.6em}.tb-constants{border-top:1px solid var(--sage-300)}.tb-constant{display:grid;grid-template-columns:72px minmax(0,1fr) auto;align-items:center;gap:8px 16px;padding:16px 4px;border-bottom:1px solid var(--sage-300)}.tb-const-symbol{text-align:center;color:var(--clay);font:italic 24px var(--font-serif)}.tb-const-symbol sub{font-size:.55em;font-style:normal}.tb-const-text{display:grid;gap:3px;min-width:0}.tb-const-text strong{color:var(--ink-strong);font-size:14px;font-weight:600}.tb-const-value{justify-self:start;max-width:100%;color:var(--forest);font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.tb-const-text small{color:var(--muted);font-size:12px;line-height:1.5}.tb-const-use.studio-button{gap:8px;min-height:44px;white-space:nowrap}@container toolbox (max-width: 560px){.tb-constant{grid-template-columns:52px minmax(0,1fr)}.tb-const-use.studio-button{grid-column:2;justify-self:start}}.tb-timer{display:grid;justify-items:center;gap:18px;padding-block:8px;text-align:center}.tb-timer-presets{display:flex;flex-wrap:wrap;gap:10px 24px}.tb-timer .tb-chips,.tb-timer-presets{justify-content:center}.tb-timer-phase{color:var(--clay);font-size:13px;font-weight:650}.tb-timer-time{color:var(--ink-strong);font-size:clamp(64px,19cqi,132px);font-weight:650;line-height:1;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.tb-timer-meter.studio-meter{width:min(440px,100%)}.tb-timer-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.tb-timer-actions .studio-button{justify-content:center;gap:10px;min-width:150px;min-height:52px}.tb-timer-note{min-height:22px;color:var(--ok);font-size:14px;font-weight:600}.tb-timer .tb-hint{max-width:420px}.tb-drawer{position:fixed;z-index:60;inset-block:12px;inset-inline-end:12px;display:flex;flex-direction:column;width:min(440px,calc(100vw - 24px));overflow:hidden;border:1px solid var(--sage-300);border-radius:var(--radius-panel);background:var(--paper);box-shadow:0 30px 70px -30px rgba(38,62,53,.5);animation:tb-drawer-in .28s cubic-bezier(.22,1,.36,1)}[dir=rtl] .tb-drawer{animation-name:tb-drawer-in-rtl}.tb-drawer:focus{outline:none}.tb-drawer:focus-visible{outline:3px solid var(--focus);outline-offset:-3px}.tb-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:12px;padding-inline:22px 12px;border-bottom:1px solid var(--sage-300);background:var(--surface)}.tb-drawer-head h2{color:var(--ink-strong);font-size:17px;font-weight:650}.tb-drawer-body{flex:1;min-height:0;padding:16px;overflow-y:auto;overscroll-behavior:contain}@media (max-width:480px){.tb-drawer{inset:0;width:100%;border:0;border-radius:0}}@keyframes tb-drawer-in{0%{opacity:0;transform:translateX(28px)}}@keyframes tb-drawer-in-rtl{0%{opacity:0;transform:translateX(-28px)}}@media (prefers-reduced-motion:reduce){.tb-drawer{animation:none}.tb-key:active{transform:none}}