.pcalc-page{max-width:1500px;margin:0 auto;padding:24px;color:#193647}
.pcalc-page-head{margin-bottom:20px;padding:26px 30px;border:1px solid #dce8e6;border-radius:18px;background:linear-gradient(125deg,#f2faf7,#fff 65%)}
.pcalc-page-head>a{color:#116a60;text-decoration:none;font-weight:700;font-size:.85rem}
.pcalc-page-head h1{margin:12px 0 6px;font-size:clamp(1.7rem,3vw,2.4rem);color:#143343}
.pcalc-page-head p{max-width:800px;margin:0;color:#58717d;line-height:1.55}
.pcalc-page-head nav{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}
.pcalc-page-head nav a{padding:9px 13px;border:1px solid #cfe1db;border-radius:9px;background:#fff;color:#19594e;text-decoration:none;font-weight:700;font-size:.85rem}
.pcalc-page-head nav a[aria-current="page"]{background:#145e53;color:#fff;border-color:#145e53}
.pcalc-browser{display:grid;grid-template-columns:minmax(250px,300px) minmax(0,1fr);min-height:620px;border:1px solid #dce5e7;border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 8px 28px #1433430a}
.pcalc-sidebar{background:#f8fafb;border-right:1px solid #dce5e7;padding:18px;max-height:calc(100vh - 160px);overflow:auto}
.pcalc-search{width:100%;min-height:44px;padding:10px 12px;border:1px solid #bdcfd1;border-radius:9px;background:#fff;font:inherit}
.pcalc-tool-group{margin-top:18px}
.pcalc-tool-group h2{margin:0 0 8px;color:#617985;font-size:.72rem;text-transform:uppercase;letter-spacing:.075em}
.pcalc-tool-choice{display:block;width:100%;margin:2px 0;padding:10px 11px;text-align:left;border:1px solid transparent;border-radius:9px;background:transparent;color:#274657;font:inherit;font-size:.84rem;cursor:pointer}
.pcalc-tool-choice[hidden],.pcalc-tool-group[hidden]{display:none!important}
.pcalc-tool-choice:hover{background:#eaf2f0}
.pcalc-tool-choice[aria-current="true"]{background:#e2f2ec;border-color:#c7e2d8;color:#164b45;font-weight:800}
.pcalc-workspace{min-width:0;padding:30px clamp(18px,4vw,48px)}
.pcalc-eyebrow{color:#087869;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.pcalc-workspace-head h2{margin:7px 0;font-size:1.55rem;color:#123c4b}
.pcalc-workspace-head p{margin:0 0 22px;color:#5f7480;line-height:1.5}
.pcalc-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.pcalc-field{display:flex;flex-direction:column;gap:6px;color:#344f5d;font-size:.85rem;font-weight:650}
.pcalc-field input:not([type="checkbox"]),.pcalc-field select{width:100%;min-height:43px;padding:9px 11px;border:1px solid #bfd0d5;border-radius:9px;background:#fff;color:#173646;font:inherit;font-weight:450}
.pcalc-field input:focus,.pcalc-field select:focus,.pcalc-search:focus{outline:2px solid #2e9b86;outline-offset:1px}
.pcalc-field.pcalc-check{flex-direction:row;align-items:flex-start;gap:9px;padding:11px 12px;border:1px solid #dce5e7;border-radius:9px;background:#f9fbfb;line-height:1.4}
.pcalc-check input{margin-top:3px;accent-color:#087869}
.pcalc-actions{display:flex;gap:9px;margin-top:22px}
.pcalc-actions button{min-height:42px;padding:8px 20px;border-radius:9px;font:inherit;font-size:.86rem;font-weight:750;cursor:pointer}
.pcalc-run{border:1px solid #145e53;background:#145e53;color:#fff}
.pcalc-reset{border:1px solid #cbdad9;background:#fff;color:#315d5a}
.pcalc-result{margin-top:20px;padding:17px 19px;border:1px solid #cfe4db;border-left:5px solid #19816d;border-radius:11px;background:#f0faf5;color:#1a4b45;line-height:1.5}
.pcalc-result.pcalc-error{border-color:#edcaca;border-left-color:#b74141;background:#fff4f4;color:#9a3030}
.pcalc-answer-line{margin:0;font-weight:700}
.pcalc-answer-line+.pcalc-answer-line{margin-top:5px}
.pcalc-answer-note{margin:12px 0 0;color:#526a68;font-size:.82rem;font-weight:450}
.pcalc-references{margin-top:28px;padding-top:19px;border-top:1px solid #e4eded}
.pcalc-references h3{margin:0 0 10px;color:#284956;font-size:.9rem}
.pcalc-references ul{margin:0;padding-left:20px}.pcalc-references li{margin:6px 0;font-size:.81rem}.pcalc-references a{color:#075d77}
@media(max-width:850px){.pcalc-browser{grid-template-columns:minmax(0,1fr)}.pcalc-sidebar{max-height:260px;border-right:0;border-bottom:1px solid #dce5e7}.pcalc-fields{grid-template-columns:minmax(0,1fr)}}