:root{
  --bg:#efebe5;--paper:#f8f5ef;--stone:#e7e1d8;--ink:#11100f;--muted:#6f6962;
  --line:rgba(17,16,15,.11);--line-strong:rgba(17,16,15,.18);--shadow:0 24px 70px rgba(45,38,30,.08);
  --brand-gradient:linear-gradient(135deg,#226afe,#8058fd 27%,#e550b3 52%,#fe635b 73%,#fec548);
  --wrap:min(1320px,calc(100% - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit}
.app-wrap{width:var(--wrap);margin-inline:auto;min-width:0}
.serif{font-family:"Source Serif 4",Georgia,serif;font-style:italic;font-weight:500}
.app-header{position:sticky;top:0;z-index:50;background:rgba(239,235,229,.93);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.04em}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--brand-gradient);color:#fff;display:grid;place-items:center;font-size:10px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.22)}
.nav-actions{display:flex;align-items:center;gap:12px}.nav-actions a{font-size:12px;font-weight:800}.install-btn{min-height:40px;padding:0 15px;border:1px solid #111;border-radius:999px;background:#111;color:#fff;font-size:12px;font-weight:800;cursor:pointer}
.tool-main{min-height:100vh}
.tool-intro{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:36px;align-items:end;padding-top:42px;padding-bottom:30px}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:10px;font-weight:800;letter-spacing:.15em;text-transform:uppercase;color:#5e5851}.eyebrow:before{content:"";width:20px;height:2px;border-radius:99px;background:var(--brand-gradient)}
.tool-intro h1{font-size:clamp(40px,4.4vw,68px);line-height:.94;letter-spacing:-.06em;margin:13px 0 15px;max-width:880px}.tool-intro p{font-size:15px;line-height:1.65;color:var(--muted);max-width:760px;margin:0}
.tool-intro-actions a{display:inline-flex;align-items:center;min-height:42px;padding:0 16px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(255,255,255,.4);font-size:12px;font-weight:800}
.install-help{grid-column:1/-1;padding:13px 15px;border:1px solid var(--line);border-radius:14px;background:var(--paper);font-size:12px;line-height:1.55}
.app-workspace{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:680px;border:1px solid var(--line);border-radius:30px;overflow:hidden;background:var(--paper);box-shadow:var(--shadow)}
.step-sidebar{padding:24px 18px;border-right:1px solid var(--line);background:#ece6de;display:flex;flex-direction:column;min-width:0}
.step-sidebar-head{display:flex;justify-content:space-between;gap:10px;padding:4px 8px 18px;text-transform:uppercase;letter-spacing:.11em;font-size:9px;color:var(--muted);font-weight:800}.step-sidebar-head strong{color:var(--ink);letter-spacing:0;text-transform:none;font-size:10px}
.step-list{list-style:none;padding:0;margin:0;display:grid;gap:6px}.step-nav{width:100%;display:grid;grid-template-columns:34px 1fr;gap:11px;align-items:center;text-align:left;padding:11px;border:1px solid transparent;border-radius:14px;background:transparent;color:inherit;cursor:pointer}.step-nav>span{width:32px;height:32px;border:1px solid var(--line);border-radius:10px;display:grid;place-items:center;font-size:9px;font-weight:800;background:rgba(255,255,255,.3)}.step-nav div{min-width:0}.step-nav b{display:block;font-size:12px;letter-spacing:-.02em}.step-nav small{display:block;margin-top:3px;font-size:9px;line-height:1.35;color:var(--muted)}.step-nav.is-active{background:var(--paper);border-color:var(--line);box-shadow:0 8px 24px rgba(35,30,25,.05)}.step-nav.is-active>span{background:#111;color:#fff;border-color:#111}.step-nav.is-complete>span{font-size:0}.step-nav.is-complete>span:after{content:"✓";font-size:11px}
.sidebar-note{margin-top:auto;padding:16px;border-top:1px solid var(--line);font-size:11px}.sidebar-note b{font-size:11px}.sidebar-note p{margin:6px 0 0;color:var(--muted);line-height:1.5}
.app-panel{min-width:0;background:var(--paper)}
.mobile-stepbar{display:none}
.app-checker-form{border:0!important;border-radius:0!important;box-shadow:none!important;background:transparent!important;padding:0!important;min-height:100%;display:flex;flex-direction:column}
.app-step{padding:34px 38px 22px;min-width:0}.app-step[hidden]{display:none}.app-step-head{display:grid;grid-template-columns:minmax(0,.9fr) minmax(240px,.7fr);gap:40px;align-items:end;padding-bottom:28px;margin-bottom:26px;border-bottom:1px solid var(--line)}.step-kicker{display:block;font-size:9px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}.app-step-head h2{font-size:clamp(30px,3vw,44px);line-height:.96;letter-spacing:-.05em;margin:0}.app-step-head p{font-size:12px;line-height:1.55;color:var(--muted);margin:0;max-width:470px}
.app-checker-form .checker-field{margin-bottom:24px}.app-checker-form .checker-field legend{font-size:12px;margin-bottom:10px}.app-checker-form .checker-options{gap:10px}.app-checker-form .checker-option>span{min-height:70px;padding:14px 16px;border-radius:16px;background:#fbfaf7}.app-checker-form .checker-option b{font-size:12px}.app-checker-form .checker-option small{font-size:10px}.app-checker-form .checker-option input:checked+span{background:#fff;border-color:#111;box-shadow:inset 0 0 0 1px #111,0 8px 20px rgba(20,18,16,.04);position:relative;padding-right:42px}.app-checker-form .checker-option input:checked+span:after{content:"✓";position:absolute;right:13px;top:50%;transform:translateY(-50%);width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:#111;color:#fff;font-size:11px;font-weight:800}
.result-step{padding-bottom:28px}.result-head{margin-bottom:18px}.app-results{position:relative!important;top:auto!important;padding:0!important;border:0!important;border-radius:0!important;box-shadow:none!important;background:transparent!important}.app-results .checker-results-head{padding:20px 22px;border:1px solid var(--line);border-radius:20px;background:#fff}.app-results .checker-results-head h3{font-size:clamp(25px,2.7vw,38px);margin:12px 0 8px}.app-results .checker-result-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding:12px 0}.app-results .checker-result{background:#fbfaf7;min-width:0}.app-results .checker-official-note{margin-top:2px;padding:20px 22px;border:0;border-radius:20px;background:#111;color:#fff}.app-results .checker-official-note p{color:#c8c2bb}.app-results .checker-official-note a{display:inline-flex;margin-top:2px;padding:10px 13px;border-radius:999px;background:#fff;color:#111;text-decoration:none;font-weight:800}
.app-actionbar{margin-top:auto;position:sticky;bottom:0;z-index:15;display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:14px 20px;border-top:1px solid var(--line);background:rgba(248,245,239,.94);backdrop-filter:blur(16px)}.action-primary,.action-secondary{min-width:116px;min-height:44px;border-radius:999px;font-weight:800;font-size:12px;cursor:pointer}.action-primary{border:1px solid #111;background:#111;color:#fff}.action-secondary{border:1px solid var(--line-strong);background:#fff;color:#111}.action-secondary:disabled{opacity:.35;cursor:default}.actionbar-center{display:flex;justify-content:center;align-items:center;gap:12px;font-size:10px;color:var(--muted)}.reset-link{border:0;background:transparent;padding:6px;color:#111;font-size:10px;font-weight:800;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.checker-disclaimer{font-size:10px;line-height:1.5;color:var(--muted);margin-top:14px;margin-bottom:0}
.official-links{padding:38px 0 60px}.link-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.link-grid a{min-height:92px;padding:16px;border:1px solid var(--line);border-radius:18px;background:var(--paper);display:flex;flex-direction:column;justify-content:space-between}.link-grid b{font-size:13px}.link-grid span{font-size:10px;color:var(--muted)}
@media (hover:hover) and (pointer:fine){.step-nav:hover{background:rgba(248,245,239,.7)}.checker-option:hover>span{transform:translateY(-1px)}.link-grid a:hover{border-color:var(--line-strong)}}
@media(max-width:1100px){:root{--wrap:min(100% - 28px,1320px)}.app-workspace{grid-template-columns:210px minmax(0,1fr)}.app-step{padding:30px 28px 20px}.app-step-head{gap:28px}.checker-options-3{grid-template-columns:repeat(2,minmax(0,1fr))}.app-results .checker-result-list{grid-template-columns:1fr}}
@media(max-width:820px){.tool-intro{grid-template-columns:1fr;padding-top:28px}.tool-intro-actions{display:none}.app-workspace{display:block;border-radius:24px;min-height:0}.step-sidebar{display:none}.mobile-stepbar{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);font-size:10px;font-weight:800;color:var(--muted)}.mobile-progress{height:5px;flex:1;border-radius:999px;background:#e4ded6;overflow:hidden}.mobile-progress i{display:block;width:25%;height:100%;background:#111;border-radius:inherit;transition:width .22s ease}.app-step{padding:24px 20px 14px}.app-step-head{grid-template-columns:1fr;gap:10px;padding-bottom:22px;margin-bottom:22px}.app-step-head p{max-width:620px}.app-actionbar{padding:12px 14px}.action-primary,.action-secondary{min-width:100px}.actionbar-center>span{display:none}.checker-two-up{grid-template-columns:1fr}.link-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){:root{--wrap:min(100% - 20px,1320px)}.nav{min-height:62px}.nav-actions>a{display:none}.install-btn{min-height:38px}.tool-intro{padding-top:24px;padding-bottom:22px}.tool-intro h1{font-size:clamp(38px,12vw,54px)}.tool-intro p{font-size:14px}.app-workspace{width:100%;border-left:0;border-right:0;border-radius:0}.app-step{padding:22px 14px 10px}.app-step-head h2{font-size:32px}.checker-options,.checker-options-3,.checker-options.compact{grid-template-columns:1fr}.app-checker-form .checker-option>span{min-height:64px}.app-actionbar{grid-template-columns:1fr 1fr;gap:9px}.actionbar-center{grid-column:1/-1;grid-row:1;justify-content:space-between}.action-secondary{grid-column:1;grid-row:2}.action-primary{grid-column:2;grid-row:2}.action-primary,.action-secondary{width:100%;min-width:0}.link-grid{grid-template-columns:1fr}.official-links{padding-bottom:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-progress i,.checker-option>span{transition:none!important}.checker-option:hover>span{transform:none}}