.testing-page{--pt-ink:#142a46;--pt-blue:#183ba3;--pt-muted:#506178;--pt-line:#d9e2ef;color:var(--pt-ink);line-height:1.75}.pt-container{width:min(100%,1280px);margin-inline:auto;padding-inline:32px}.testing-page *,.testing-page :before,.testing-page :after{box-sizing:border-box}.testing-page [id]{scroll-margin-top:167px}.testing-page h1,.testing-page h2,.testing-page h3,.testing-page h4,.testing-page h5{letter-spacing:-.035em;font-weight:650;line-height:1.2}.testing-page h2{margin:0 0 20px;font-size:clamp(1.8rem,3vw,2.6rem)}.testing-page p{margin:0 0 16px}.testing-page a{border-radius:3px}.testing-page a:focus-visible,.testing-page summary:focus-visible,.pt-stage-wrap:focus-visible{outline:3px solid var(--pt-blue);outline-offset:4px}.testing-page a:hover{color:#b91c2b}.pt-hero{border-bottom:1px solid var(--pt-line);background:linear-gradient(115deg,#f7f9fc,#edf2f9);padding:26px 0 35px}.pt-breadcrumb ol{color:#586a83;flex-wrap:wrap;gap:10px;margin:0 0 45px;padding:0;font-size:.75rem;list-style:none;display:flex}.pt-breadcrumb li+li:before{content:"/";color:#8a99ad;margin-right:10px}.pt-breadcrumb a{padding-block:8px;display:inline-block}.pt-hero-grid{grid-template-columns:1.05fr 1fr;align-items:center;gap:70px;display:grid}.testing-page .pt-eyebrow{color:var(--pt-blue);letter-spacing:.14em;margin-bottom:18px;font-size:.66rem;font-weight:750;line-height:1.7}.testing-page h1{letter-spacing:-.05em;margin:0 0 24px;font-size:clamp(2.45rem,4.3vw,3.7rem);line-height:1.08}.pt-lead{max-width:35ch;font-size:1.2rem;line-height:1.55}.pt-intro{color:var(--pt-muted);max-width:51ch;font-size:.94rem}.pt-actions{flex-wrap:wrap;align-items:center;gap:18px 24px;margin-top:29px;display:flex}.pt-button{color:#fff;background:#bd1d2b;justify-content:space-between;align-items:center;gap:20px;min-height:48px;padding:13px 19px;font-size:.85rem;font-weight:650;display:inline-flex}.testing-page .pt-button:hover{color:#fff;background:#a51824}.pt-text-link{color:var(--pt-blue);padding:10px 0;font-size:.82rem}.pt-plan-panel{color:#fff;background:#132943;border:1px solid #233c5a;border-radius:8px;overflow:hidden;box-shadow:0 15px 35px #1a365415}.pt-panel-label{letter-spacing:.11em;color:#b8cbe1;border-bottom:1px solid #3a506d;justify-content:space-between;gap:15px;padding:17px 24px;font-size:.6rem;display:flex}.pt-plan-panel h2{letter-spacing:-.01em;margin:23px 24px 17px;font-size:1.05rem}.pt-hero-values{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:0;padding:0 24px 23px;display:grid}.pt-hero-values dt{color:#b8cbe1;font-size:.69rem}.pt-hero-values dd{letter-spacing:-.04em;white-space:nowrap;margin:4px 0 0;font-size:2.6rem;font-weight:600;line-height:1.3}.pt-hero-values dd span{font-size:.42em;font-weight:450}.pt-mini-sequence{gap:9px;margin:0;padding:0 24px 24px;font-size:.79rem;list-style:none;display:grid}.pt-mini-sequence li{align-items:center;gap:12px;display:flex}.pt-mini-sequence span{color:#b6cce8;border:1px solid #617793;border-radius:50%;padding:2px 5px;font-size:.66rem}.pt-panel-note{color:#3e536f;background:#fff;padding:20px 24px;font-size:.77rem;line-height:1.7}.pt-panel-note p{margin-bottom:9px}.pt-panel-note a{color:var(--pt-blue);padding-block:5px;font-weight:650;display:inline-block}.testing-page .pt-plan-status{color:#51637c;border-top:1px solid #d6dfec;margin:32px 0 0;padding-top:22px;font-size:.8rem}.pt-section{border-bottom:1px solid var(--pt-line);padding:66px 0}.pt-heading{grid-template-columns:1fr .85fr;align-items:end;gap:80px;margin-bottom:30px;display:grid}.pt-heading h2{margin-bottom:0}.pt-heading>p{color:var(--pt-muted);margin:0;font-size:.91rem}.pt-reading-flow{border:1px solid var(--pt-line);border-radius:7px;grid-template-columns:repeat(5,minmax(0,1fr));margin:34px 0 27px;padding:0;list-style:none;display:grid;overflow:hidden}.pt-reading-flow li{background:#f8fafd;padding:22px 19px}.pt-reading-flow li+li{border-left:1px solid var(--pt-line)}.pt-reading-flow span{color:#637b9d;margin-bottom:15px;font-size:.66rem;display:block}.pt-reading-flow strong{margin-bottom:7px;font-size:.88rem;display:block}.pt-reading-flow p{color:var(--pt-muted);margin:0;font-size:.77rem}.pt-source-note,.pt-reading-note{color:var(--pt-muted);background:#f5f7fb;border-left:3px solid #6785b3;padding:16px 20px;font-size:.82rem}.pt-source-note cite{font-style:normal}.pt-stages-heading{grid-template-columns:.7fr 1.3fr;gap:45px;margin:40px 0 20px;display:grid}.pt-stages-heading h3{margin:0;font-size:1.3rem}.pt-stages-heading p{color:var(--pt-muted);margin:0;font-size:.83rem}.pt-stage-wrap{border:1px solid var(--pt-line);border-radius:6px;overflow:auto}.pt-stage-table{border-collapse:collapse;text-align:left;width:100%;font-size:.85rem}.pt-stage-table caption{text-align:left;color:#556a87;background:#f6f8fc;padding:14px 18px;font-size:.74rem}.pt-stage-table th,.pt-stage-table td{border-top:1px solid var(--pt-line);padding:12px 18px}.pt-stage-table thead{background:#eef3fa}.pt-stage-table th{font-weight:650}.pt-stage-table tbody th{color:var(--pt-blue)}.testing-page .pt-small{color:#5a6d86;margin-top:14px;font-size:.77rem}.pt-cycle-card{background:#f3f6fc;border:1px solid #cedbef;border-radius:8px;grid-template-columns:1fr 1fr;gap:20px 40px;padding:30px;display:grid}.pt-cycle-card h3{margin:0 0 15px;font-size:1.5rem}.pt-cycle-card p{color:#455c79;font-size:.86rem}.pt-cycle-card .pt-eyebrow{font-size:.61rem}.pt-cycle-card figure{align-self:center;margin:0}.pt-cycle{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:0;padding:0;list-style:none;display:grid}.pt-cycle li{background:#fff;border-top:3px solid #244d96;padding:20px 14px}.pt-cycle li:nth-child(2){border-color:#c52a35}.pt-cycle li:nth-child(3){border-color:#6f7f95}.pt-cycle span,.pt-cycle strong,.pt-cycle em{display:block}.pt-cycle span{letter-spacing:.1em;color:#596f8b;font-size:.58rem}.pt-cycle strong{letter-spacing:-.035em;white-space:nowrap;margin:12px 0;font-size:clamp(1.1rem,1.9vw,1.6rem)}.pt-cycle em{color:#546a87;font-size:.77rem;font-style:normal}.pt-cycle-card figcaption{color:#647690;margin-top:13px;font-size:.67rem}.pt-cycle-note{border-top:1px solid #cfdaea;grid-column:1/-1;padding-top:18px;margin:0!important}.pt-cycle-note a,.pt-example-grid a{color:var(--pt-blue);padding:6px 0;font-weight:650;display:inline-block}.pt-example-grid{grid-template-columns:1fr 1fr;gap:24px;margin-top:24px;display:grid}.pt-example-grid article{border:1px solid var(--pt-line);border-radius:7px;padding:28px}.pt-example-grid h3{margin:0 0 18px;font-size:1.35rem}.pt-example-grid p{color:var(--pt-muted);font-size:.86rem}.pt-example-grid .pt-eyebrow{font-size:.57rem}.pt-example-grid .pt-formula{color:#244a89;background:#f3f6fb;padding:16px;font-size:.94rem;font-weight:600;line-height:1.75}.pt-example-grid a{margin-right:20px;font-size:.8rem}.pt-group-nav{border-top:1px solid var(--pt-line);border-left:1px solid var(--pt-line);grid-template-columns:repeat(3,minmax(0,1fr));margin:32px 0 23px;display:grid}.pt-group-nav a{border-right:1px solid var(--pt-line);border-bottom:1px solid var(--pt-line);grid-template-columns:1fr auto;gap:8px;padding:23px;display:grid}.pt-group-nav a:hover{background:#f3f6fb}.pt-group-nav a>span:first-child{letter-spacing:.08em;color:#617797;grid-column:1/-1;font-size:.59rem}.pt-group-nav strong{font-size:.9rem;line-height:1.5}.pt-family{margin-top:45px}.pt-family-heading{align-items:center;gap:18px;margin-bottom:18px;display:flex}.pt-family-heading>span{color:#385c94;border:1px solid var(--pt-line);background:#eef3fa;border-radius:5px;padding:7px 11px;font-size:1.2rem}.pt-family-heading h3{margin:0 0 6px;font-size:1.35rem}.pt-family-heading p{color:var(--pt-muted);margin:0;font-size:.81rem}.pt-family-heading>a{white-space:nowrap;color:var(--pt-blue);margin-left:auto;padding:10px 0 10px 12px;font-size:.74rem}.pt-test-list{border:1px solid var(--pt-line);border-radius:7px;overflow:hidden}.pt-test+.pt-test{border-top:1px solid var(--pt-line)}.pt-test>summary{cursor:pointer;align-items:center;gap:20px;padding:18px 23px;list-style:none;display:flex}.pt-test>summary::-webkit-details-marker{display:none}.pt-faq summary::-webkit-details-marker{display:none}.pt-test>summary:hover{background:#f7f9fd}.pt-test>summary:focus-visible{outline-offset:-4px}.pt-test:target{box-shadow:inset 4px 0 #183ba3}.pt-test[open]>summary{background:#f0f4fb}.pt-test h4{letter-spacing:-.01em;margin:0;font-size:.99rem;font-weight:650;line-height:1.5}.pt-summary-stages{color:#536a8a;white-space:nowrap;margin-left:auto;font-size:.65rem}.pt-plus{color:#31568e;background:#e8eef9;border-radius:50%;flex:0 0 27px;justify-content:center;align-items:center;width:27px;height:27px;display:inline-flex}.pt-test[open] .pt-plus{transform:rotate(45deg)}.pt-test-body{padding:23px 28px 18px}.pt-source-ref{color:#5d718f;font-size:.69rem}.pt-test-stages{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;max-width:700px;margin:18px 0 25px;display:grid}.pt-test-stages>div{background:#f8f9fb;border:1px solid #e2e7ef;border-radius:4px;padding:9px 12px}.pt-test-stages dt{color:#536781;font-size:.76rem;font-weight:650}.pt-test-stages dd{color:#5c6d84;margin:3px 0 0;font-size:.63rem;line-height:1.5}.pt-test-stages .is-marked{background:#edf3ff;border-color:#b7c9ec}.pt-test-stages .is-marked dt,.pt-test-stages .is-marked dd{color:#254783}.pt-test-columns{grid-template-columns:1.25fr 1fr;gap:35px;display:grid}.pt-test h5{text-transform:uppercase;letter-spacing:.065em;margin:0 0 13px;font-size:.76rem}.pt-test ul{color:#3b506d;margin:0;padding-left:19px;font-size:.87rem}.pt-test li+li{margin-top:11px}.pt-evaluation{border-left:1px solid var(--pt-line);padding-left:28px}.pt-entry-notes{background:#fbf8f1;border-left:3px solid #b08b48;margin-top:23px;padding:17px 19px}.pt-entry-notes h5{color:#73591f;margin:0 0 9px}.pt-entry-notes p{color:#65573d;margin:0;font-size:.79rem}.pt-entry-notes p+p{margin-top:8px}.pt-back{color:var(--pt-blue);padding:14px 0 5px;font-size:.72rem;display:inline-block}.pt-bond-examples{flex-wrap:wrap;align-items:start;gap:25px;margin-top:25px;display:flex}.pt-bond-examples figure{margin:0}.pt-bond-examples img{object-fit:contain;width:auto;max-width:100%}.pt-bond-examples figcaption{color:#536783;margin-top:8px;font-size:.71rem}.pt-bond-examples>p{max-width:37ch;color:var(--pt-muted);font-size:.77rem}.pt-related{grid-template-columns:1fr 1fr;gap:25px;margin-top:30px;display:grid}.pt-related a{border:1px solid var(--pt-line);padding:26px}.pt-related h3{margin:0 0 14px;font-size:1.2rem}.pt-related p{color:var(--pt-muted);font-size:.87rem}.pt-related span{color:var(--pt-blue);font-size:.79rem}.pt-faq{border-top:1px solid var(--pt-line);margin-top:28px}.pt-faq details{border-bottom:1px solid var(--pt-line)}.pt-faq summary{cursor:pointer;justify-content:space-between;gap:20px;padding:20px 4px;font-size:.98rem;font-weight:600;list-style:none;display:flex}.pt-faq details>p{color:var(--pt-muted);max-width:95ch;padding:0 4px 10px;font-size:.9rem}.pt-project{background:#eaf0fa;padding:67px 0}.pt-project-grid{grid-template-columns:1.1fr 1fr;gap:80px;display:grid}.pt-project p{color:#435b7b;font-size:.92rem}.pt-project .pt-button{margin-top:10px}.pt-project ol{counter-reset:brief;margin:0;padding:0;list-style:none}.pt-project li{counter-increment:brief;border-bottom:1px solid #ccd8eb;padding:15px 0 15px 40px;position:relative}.pt-project li:before{content:"0" counter(brief);color:#617da4;font-size:.75rem;position:absolute;top:15px;left:0}.pt-project li:first-child{padding-top:0}.pt-project li:first-child:before{top:0}.pt-project li strong,.pt-project li span{display:block}.pt-project li strong{margin-bottom:6px;font-size:.94rem}.pt-project li span{color:#4d6381;font-size:.83rem}@media (width<=1119px){.testing-page [id]{scroll-margin-top:136px}.pt-hero-grid,.pt-heading{gap:35px}.pt-hero-values dd{font-size:2.1rem}.pt-reading-flow{grid-template-columns:repeat(3,minmax(0,1fr))}.pt-reading-flow li:nth-child(4){border-left:0}.pt-reading-flow li:nth-child(n+4){border-top:1px solid var(--pt-line)}.pt-project-grid{gap:40px}}@media (width<=859px){.pt-container{padding-inline:24px}.pt-hero-grid{grid-template-columns:1fr;gap:35px}.pt-hero-grid>div:first-child{max-width:620px}.pt-plan-panel{max-width:640px}.pt-heading,.pt-stages-heading,.pt-cycle-card,.pt-project-grid{grid-template-columns:1fr;gap:20px}.pt-cycle-card figure{max-width:600px}.pt-cycle strong{font-size:1.6rem}.pt-test-columns{grid-template-columns:1fr;gap:25px}.pt-evaluation{border-left:0;border-top:1px solid var(--pt-line);padding:22px 0 0}.pt-group-nav{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=600px){.pt-container{padding-inline:16px}.pt-hero{padding-top:13px}.pt-breadcrumb ol{gap:6px;margin-bottom:27px;font-size:.66rem}.pt-breadcrumb li+li:before{margin-right:6px}.testing-page h1{font-size:2.55rem}.pt-lead{font-size:1.1rem}.pt-intro{font-size:.9rem}.pt-section{padding:45px 0}.pt-panel-label{padding:15px 18px}.pt-plan-panel h2{margin:21px 18px 15px;font-size:.98rem}.pt-hero-values{gap:9px;padding:0 18px 21px}.pt-hero-values dd{font-size:2rem}.pt-hero-values dt{font-size:.62rem}.pt-mini-sequence{padding-inline:18px}.pt-panel-note{padding:19px 18px}.pt-reading-flow{grid-template-columns:1fr}.pt-reading-flow li{grid-template-columns:27px 1fr;gap:0 10px;padding:16px 18px;display:grid}.pt-reading-flow li+li{border-left:0;border-top:1px solid var(--pt-line)}.pt-reading-flow span{grid-row:1/3;margin:0}.pt-reading-flow p{grid-column:2}.pt-stage-table{font-size:.78rem}.pt-stage-table th,.pt-stage-table td{padding:11px 10px}.pt-stage-table caption{padding:12px 10px;font-size:.66rem}.pt-cycle-card{padding:22px 17px}.pt-cycle{gap:6px}.pt-cycle li{padding:16px 9px}.pt-cycle strong{font-size:1.15rem}.pt-cycle em{font-size:.7rem}.pt-example-grid,.pt-related{grid-template-columns:1fr}.pt-example-grid article{padding:23px 20px}.pt-group-nav a{padding:18px 13px}.pt-group-nav strong{font-size:.82rem}.pt-family-heading{flex-wrap:wrap;gap:10px}.pt-family-heading>div{flex:1;min-width:180px}.pt-family-heading>span{font-size:1rem}.pt-family-heading h3{font-size:1.13rem}.pt-family-heading>a{margin:0 0 0 50px;padding:0 0 7px}.pt-test>summary{grid-template-columns:1fr 27px;gap:4px 12px;padding:16px;display:grid}.pt-test h4{font-size:.94rem}.pt-summary-stages{grid-column:1;margin:0;font-size:.63rem}.pt-plus{grid-area:1/2/3}.pt-test-body{padding:20px 17px 14px}.pt-test-stages{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.pt-test-stages>div{padding:8px}.pt-source-ref{overflow-wrap:anywhere;font-size:.65rem}.pt-test ul{font-size:.85rem}.pt-entry-notes{padding:15px}.pt-project{padding:45px 0}.pt-project .pt-button{width:100%;font-size:.8rem}.pt-faq summary{font-size:.91rem}}@media (prefers-reduced-motion:reduce){.testing-page *{scroll-behavior:auto}}
