/* Research tools: shared layout, outputs and accessible navigation. */
.tools-hero{display:grid;grid-template-columns:1fr 210px;gap:50px;align-items:center}.tools-hero h1>span{color:var(--teal)}.tools-hero .tools-intro{max-width:750px}.tools-seal{display:flex;flex-direction:column;align-items:center;gap:20px;color:var(--teal);text-align:center;font-size:.65rem;letter-spacing:.18em}.tools-seal .brand-fingerprint{width:91px;height:130px;background:var(--teal)}.tools-meta{display:flex;gap:25px;flex-wrap:wrap;margin:30px 0 40px;font-size:.8rem;color:var(--muted)}.tools-meta span:before{content:'✓';color:var(--teal);margin-right:8px}.tool-categories{display:flex;gap:8px;padding:7px;border:1px solid var(--line);background:var(--surface);border-radius:12px}.tool-categories button{flex:1;border:0;background:transparent;border-radius:7px;min-height:58px;padding:12px 18px;font-weight:600;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:.96rem;line-height:1.4}.tool-categories button>span{font-size:.76rem;border:1px solid var(--line);border-radius:50%;min-width:25px;height:25px;text-align:center;line-height:23px}.tool-categories button[aria-selected=true]{background:var(--ink);color:var(--surface)}.tool-categories button:hover:not([aria-selected=true]){background:var(--soft);color:var(--teal)}.category-description{margin:25px 0 16px;font-size:.96rem}.tool-shortcuts{margin:0 0 25px;gap:9px}.tool-shortcuts a{font-size:.86rem;background:transparent}.tool-shortcuts a[aria-current=true]{color:var(--teal);background:var(--soft);border-color:var(--teal)}.calculator-card{margin-top:0;padding:32px}.calculator-heading{margin-bottom:22px}.calculator-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:28px;padding-bottom:22px;border-bottom:1px solid var(--line)}.calculator-toolbar button{padding:9px 13px;border:1px solid var(--line);border-radius:6px;background:var(--bg);font-size:.83rem;min-height:40px}.calculator-toolbar button:hover{color:var(--teal);border-color:var(--teal)}.calculator-toolbar [data-clear]{background:var(--soft);color:var(--teal);border-color:transparent}.data-mode{margin-left:auto;font-size:.74rem;color:var(--teal);padding:5px 10px;border-radius:4px;background:var(--soft)}.calculator-body{grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);gap:35px;align-items:start}.calculator-body form{min-width:0}.calculator-fields{gap:19px 16px}.calculator-fields>*{min-width:0}.wide-field{grid-column:1/-1}.calculator-card textarea{font-family:var(--body);font-variant-numeric:tabular-nums;line-height:1.7}.calculator-card input{min-width:0}.numeric-hint{margin-top:17px;font-size:.76rem}.file-field input{font-size:.8rem;padding:10px}.analysis-result{min-width:0;background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:28px}.result-summary{font-family:var(--heading);font-size:clamp(1.5rem,2.3vw,2rem);letter-spacing:-.04em;line-height:1.3;color:var(--teal);overflow-wrap:anywhere;margin-bottom:25px}.result-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px 16px;margin:0 0 25px}.result-metrics>div{min-width:0}.result-metrics dt{font-size:.74rem;color:var(--muted);line-height:1.5}.result-metrics dd{font-family:var(--heading);font-size:1.35rem;margin:7px 0 0;line-height:1.4;letter-spacing:-.03em;overflow-wrap:anywhere}.result-explanation{margin-top:25px;border-top:1px solid var(--line);padding-top:22px}.result-explanation h3{font-size:.95rem;letter-spacing:-.025em;margin-bottom:10px;display:flex;align-items:center;gap:9px}.result-explanation h3:before{content:'';width:18px;height:25px;flex-shrink:0;background:var(--teal);mask:url('../images/fingerprint.png') center/contain no-repeat}.result-explanation p{font-size:.9rem;line-height:1.8}.result-caution{font-size:.8rem;line-height:1.75;border-left:2px solid var(--teal);padding-left:12px;margin-top:17px}.result-content svg{width:100%;height:auto;display:block;margin-block:10px 20px;overflow:visible}.chart-grid{stroke:var(--line);stroke-width:1}.chart-label{font-family:var(--body);font-size:11px;fill:var(--muted)}.chart-target{stroke:var(--muted);stroke-width:1.5;stroke-dasharray:5 5}.chart-series{fill:none;stroke:var(--teal);stroke-width:2.7;stroke-linejoin:round}.chart-dot{fill:var(--surface);stroke:var(--teal);stroke-width:2}.result-bars{display:flex;flex-direction:column;gap:17px;margin-block:24px}.result-bar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px 12px;font-size:.8rem}.result-bar>span{color:var(--muted)}.result-bar>strong{font-weight:500;color:var(--ink)}.bar-track{grid-column:1/-1;border-radius:3px;height:7px;background:var(--line);overflow:hidden}.bar-track>span{display:block;height:100%;background:var(--teal);border-radius:3px}.interval-visual{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1fr);gap:10px 5px;font-size:.76rem;margin:30px 0 22px;align-items:center;font-variant-numeric:tabular-nums}.interval-visual>*:nth-child(3),.interval-visual>*:nth-child(7){text-align:right}.interval-visual>*:nth-child(2),.interval-visual>*:nth-child(6){text-align:center}.interval-visual>*{overflow-wrap:anywhere}.interval-visual strong{font-size:1.2rem;color:var(--teal)}.interval-line{grid-column:1/-1;margin:5px 8px;height:5px;position:relative;background:var(--teal);border-radius:5px;overflow:visible}.interval-line:before,.interval-line:after{content:'';position:absolute;top:-5px;height:15px;width:2px;background:var(--teal)}.interval-line:before{left:0}.interval-line:after{right:0}.interval-line i{width:13px;height:13px;border:2px solid var(--surface);border-radius:50%;background:var(--teal);position:absolute;top:-4px;transform:translateX(-50%)}.result-details{margin-top:22px;padding-top:17px;border-top:1px solid var(--line)}.result-details summary{font-size:.85rem;cursor:pointer;color:var(--teal)}.result-table-wrap{overflow:auto;max-height:390px;margin-top:17px;overscroll-behavior:contain}.result-table-wrap table{width:100%;border-collapse:collapse;font-size:.78rem;line-height:1.55}.result-table-wrap caption{text-align:left;color:var(--muted);font-size:.74rem;padding-bottom:12px}.result-table-wrap th,.result-table-wrap td{padding:10px 9px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;overflow-wrap:anywhere;min-width:64px}.result-table-wrap th{font-weight:600;background:var(--surface)}.result-table-wrap td{color:var(--muted)}.result-table-wrap th:nth-child(n+3){min-width:100px}.nav-tools-panel{min-width:285px;max-height:72vh;overflow:auto}.nav-tools-panel>span{font-size:.61rem;color:var(--teal);letter-spacing:.09em;padding:15px 12px 4px}.nav-tools-panel>a{padding-block:8px}.tool-categories button,.calculator-toolbar button,.tool-shortcuts a{transition:background .15s,color .15s}
@media(max-width:1050px){.tools-hero{grid-template-columns:1fr 150px;gap:25px}.tool-categories button{font-size:.84rem;padding:12px}.calculator-body{gap:24px}.analysis-result{padding:23px}.result-metrics{gap:20px 12px}.result-metrics dd{font-size:1.17rem}.nav-tools-panel{min-width:0;max-height:50vh}}
@media(max-width:760px){.tools-hero{grid-template-columns:1fr}.tools-seal{display:none}.tools-meta{gap:9px 18px;margin:24px 0 28px;font-size:.73rem}.tool-categories{gap:4px;padding:5px}.tool-categories button{flex-direction:column;align-items:flex-start;justify-content:space-between;gap:9px;min-height:91px;font-size:.74rem;padding:10px 9px}.tool-categories button>span{min-width:22px;height:22px;line-height:20px;font-size:.66rem}.category-description{font-size:.88rem;line-height:1.7;margin-top:20px}.tool-shortcuts{gap:7px;margin-bottom:20px}.tool-shortcuts a{font-size:.76rem;padding:9px 12px}.calculator-card{padding:22px}.calculator-toolbar{gap:7px;margin-bottom:22px;padding-bottom:19px}.calculator-toolbar button{font-size:.75rem;padding-inline:10px}.data-mode{font-size:.65rem}.calculator-body{grid-template-columns:minmax(0,1fr);gap:25px}.analysis-result{padding:22px}.result-summary{font-size:1.75rem}.result-metrics dd{font-size:1.25rem}.result-metrics dt{font-size:.73rem}.result-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 15px}.result-explanation h3{font-size:.89rem}.result-explanation p{font-size:.86rem}.result-bar{font-size:.74rem}.interval-visual{font-size:.72rem}.chart-label{font-size:13px}.tools-page .calculator-heading h2{font-size:1.38rem}.tools-page .calculator-heading .service-icon{flex-shrink:0}.file-field input{font-size:.72rem}.calculator-fields{gap:18px 12px}}
@media(max-width:380px){.tool-categories button{font-size:.67rem;padding:8px 6px}.calculator-card{padding:18px}.analysis-result{padding:18px}.calculator-fields{grid-template-columns:minmax(0,1fr)}.calculator-toolbar .data-mode{margin-left:0}.tools-page .calculator-heading h2{font-size:1.25rem}.result-summary{font-size:1.55rem}}
@media(prefers-reduced-motion:reduce){.tool-categories button,.calculator-toolbar button,.tool-shortcuts a{transition:none}}

.tool-categories{position:sticky;top:99px;z-index:25;box-shadow:0 8px 22px #00000008}.calculator-card{scroll-margin-top:195px}@media(max-width:1250px){.tool-categories{top:89px}}@media(max-width:760px){.tool-categories{top:78px}.calculator-card{scroll-margin-top:205px}}