:root{--black:#050505;--white:#fff;--ink:#111;--muted:#858585;--line:#d9d9d9;--font:"Inter",sans-serif;--display:"Space Grotesk",sans-serif}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:var(--font)}body{background:var(--black);color:var(--ink)}button,input{font:inherit}
.diagnostic-shell{min-height:100vh;display:grid;grid-template-columns:minmax(460px,44%) 1fr}
.brand-panel{position:relative;overflow:hidden;min-height:100vh;background:#030303;color:#fff;padding:42px 54px;display:flex;flex-direction:column}
.brand-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:80px 80px;mask-image:linear-gradient(to bottom,#000 0%,rgba(0,0,0,.82) 72%,transparent)}
.brand-lockup,.mobile-logo{position:relative;z-index:2;display:inline-flex;align-items:center;gap:11px;color:inherit;text-decoration:none;font-size:13px;font-weight:800;letter-spacing:3px}
.brand-lockup img,.mobile-logo img{width:30px;height:30px}.brand-lockup img{filter:invert(1)}.brand-copy{position:relative;z-index:2;margin:auto 0 auto 245px;max-width:355px;padding-left:0}
.eyebrow{display:flex;align-items:center;gap:16px;margin:0 0 24px;color:#919191;font-size:11px;font-weight:600;letter-spacing:4px}.eyebrow:before{content:"";width:38px;height:1px;background:#777}
.brand-copy h1{margin:0;max-width:490px;font:800 clamp(38px,3.4vw,52px)/.96 var(--display);letter-spacing:-2.5px}
.brand-copy>p:not(.eyebrow){max-width:410px;color:#aaa;font-size:15px;line-height:1.65}
.brand-copy ul{list-style:none;margin:38px 0 0;padding:0;display:grid;gap:18px;color:#e4e4e4;font-size:10px;font-weight:700;letter-spacing:2px}
.brand-mark{position:absolute;left:-98px;top:310px;width:350px;height:350px;color:#fff;opacity:.92;filter:invert(1) drop-shadow(0 0 5px #fff) drop-shadow(0 0 22px rgba(255,255,255,.65))}
.form-panel{min-height:100vh;background:#fff;padding:40px clamp(42px,6vw,92px) 28px;display:grid;grid-template-rows:auto 1fr auto auto}
.form-header{display:grid;grid-template-columns:auto 1fr;align-items:start;gap:18px}.back-button{border:0;background:transparent;padding:0;color:#8d8d8d;font-size:11px;font-weight:700;letter-spacing:2px;cursor:pointer}.back-button:hover{color:#111}.mobile-logo{display:none}
.progress-meta{justify-self:end;display:flex;align-items:baseline;gap:4px;font-size:11px}.progress-meta strong{font-size:20px}.progress-meta span{color:#777}
.progress-track{grid-column:1/-1;height:2px;background:#ddd;margin-top:2px}.progress-track span{display:block;width:16.666%;height:100%;background:#000;transition:width .35s ease}
#diagnosticForm{display:grid}.question-stage{align-self:center;max-width:760px;width:100%;margin:0 auto;padding:48px 0 26px}.question-kicker{margin:0 0 12px;color:#8d8d8d;font-size:15px}
.question-title{margin:0 0 42px;font:600 clamp(30px,2.4vw,36px)/1.12 var(--display);letter-spacing:-1.5px}
.field-label{display:block;margin-bottom:11px;font-size:10px;font-weight:800;letter-spacing:2px}.answer-input{width:100%;height:62px;border:1px solid #bfc3c8;background:#fff;color:#111;padding:0 20px;font-size:17px;outline:none;border-radius:0}.answer-input:focus{border:2px solid #111}.answer-input::placeholder{color:#a1a4aa}
.answer-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.option-button{min-height:62px;border:1px solid #c9c9c9;background:#fff;padding:16px 18px;text-align:left;font-size:14px;font-weight:600;cursor:pointer}.option-button:hover,.option-button[aria-pressed=true]{background:#070707;color:#fff;border-color:#070707}
.stage-actions{display:flex;justify-content:stretch;margin-top:18px}.continue-button{width:100%;min-width:210px;height:58px;border:1px solid #050505;background:#050505;color:#fff;font-size:11px;font-weight:800;letter-spacing:2.2px;cursor:pointer}.continue-button:hover{background:#242424}.continue-button:disabled{opacity:.42;cursor:not-allowed}.error-message{min-height:18px;color:#a31919;font-size:12px;margin:8px 0 0}
.proof{max-width:760px;width:100%;margin:0 auto 28px;padding:24px 26px;border-top:1px solid #ededed;border-bottom:1px solid #ededed}.proof-quote{margin:0;color:#5f5f5f;font-size:16px;line-height:1.55}.proof-source{margin:10px 0 0;color:#a0a0a0;font-size:11px}
.legal-copy{display:flex;justify-content:space-between;gap:30px;color:#858585;font-size:10px;line-height:1.45}.legal-copy p:first-child{max-width:520px}.legal-copy a{color:#333}
.success-state{padding:24px 0}.success-state h2{margin:0 0 18px;font:700 clamp(34px,4vw,58px)/1 var(--display);letter-spacing:-2px}.success-state p{max-width:560px;color:#6f6f6f;line-height:1.6}.success-link{display:inline-flex;margin-top:20px;background:#050505;color:#fff;padding:18px 24px;text-decoration:none;font-size:11px;font-weight:800;letter-spacing:2px}
@media(max-width:900px){.diagnostic-shell{display:block}.brand-panel{display:none}.form-panel{padding:24px;min-height:100svh;grid-template-rows:auto 1fr auto auto}.form-header{grid-template-columns:auto 1fr auto;align-items:center}.mobile-logo{display:inline-flex;justify-self:center;color:#111}.mobile-logo img{width:28px}.progress-meta{justify-self:end}.progress-track{grid-column:1/-1;margin-top:14px}.question-stage{padding:48px 0 24px}.question-title{font-size:34px;margin-bottom:34px}.answer-options{grid-template-columns:1fr}.proof{padding:20px 0;margin-bottom:26px}.legal-copy{display:block;text-align:center}.legal-copy p{margin:8px auto}.stage-actions{justify-content:stretch}.continue-button{width:100%}}
@media(max-width:480px){.form-panel{padding:20px 24px 18px}.mobile-logo span{display:none}.question-kicker{font-size:14px}.question-title{font-size:30px}.answer-input{height:58px}.proof-quote{font-size:15px}}