:root{color-scheme:dark;--deep:#023e8a;--blue:#0077b6;--light:#90e0ef;--white:#fff;--soft:#caf0f8;--glass:rgba(255,255,255,.12);--line:rgba(255,255,255,.32);font-family:Arial,sans-serif}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:linear-gradient(135deg,var(--deep) 0%,var(--blue) 50%,var(--light) 100%);color:var(--white)}
.landing-shell{width:min(1080px,calc(100% - 40px));min-height:100vh;margin:auto;padding:38px 0 26px;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:13px;width:max-content;filter:drop-shadow(0 8px 20px rgba(0,0,0,.2))}.brand-mark{width:42px;height:42px;flex:none}.brand-name{font-size:2rem;font-weight:700;letter-spacing:-.04em}.brand-product{margin-left:3px;padding-left:15px;border-left:1px solid rgba(255,255,255,.5);font-size:.98rem;letter-spacing:.08em;color:rgba(255,255,255,.82)}
.intro{max-width:720px;margin:clamp(64px,10vh,110px) 0 38px}.eyebrow,.role-label{margin:0 0 12px;font-size:.72rem;font-weight:700;letter-spacing:.18em;color:var(--soft)}.intro h1{margin:0 0 20px;font-size:clamp(2.8rem,7vw,5.2rem);line-height:.96;letter-spacing:-.055em;text-shadow:0 8px 25px rgba(0,0,0,.12)}.intro>p:last-child{max-width:610px;margin:0;color:rgba(255,255,255,.84);font-size:clamp(1rem,2vw,1.17rem);line-height:1.55}
.role-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:18px}.role-card{position:relative;min-height:305px;padding:29px;border:1px solid var(--line);border-radius:20px;background:var(--glass);box-shadow:0 18px 55px rgba(0,52,112,.18);backdrop-filter:blur(14px);display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}.role-card:before{content:"";position:absolute;inset:0;background:linear-gradient(145deg,rgba(255,255,255,.09),transparent 55%);pointer-events:none}.role-card>*{position:relative}.role-number{position:absolute;right:24px;top:14px;font-size:3.7rem;font-weight:700;color:rgba(255,255,255,.12)}.role-card h2{margin:0 0 9px;font-size:clamp(1.55rem,3vw,2.08rem);letter-spacing:-.035em}.role-card>div>p:last-child{max-width:450px;margin:0;color:rgba(255,255,255,.78);line-height:1.5}.role-card form{margin-top:26px}.role-card label{display:block;margin-bottom:8px;font-size:.72rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:rgba(255,255,255,.88)}
.code-entry{display:flex;gap:9px}.code-entry input{width:180px;min-width:0;padding:13px 15px;border:1px solid rgba(255,255,255,.58);border-radius:10px;outline:none;background:rgba(1,45,100,.32);color:#fff;font:700 1.28rem/1 monospace;letter-spacing:.18em;text-transform:uppercase}.code-entry input::placeholder{color:rgba(255,255,255,.42)}.code-entry input:focus{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.18)}.code-entry input[aria-invalid=true]{border-color:#ffd5d5}.code-entry button,.facilitator-link{display:inline-flex;align-items:center;justify-content:center;gap:15px;padding:14px 18px;border:1px solid #ffffff69;border-radius:10px;background:#ffffff0d;color:var(--white);font:700 .94rem/1.1 Arial,sans-serif;text-decoration:none;cursor:pointer;transition:background .15s ease,border-color .15s ease}.code-entry button:hover,.facilitator-link:hover{background:#ffffff1c;border-color:#ffffffa6}.code-entry button:focus-visible,.facilitator-link:focus-visible{outline:2px solid var(--white);outline-offset:4px;background:#ffffff1c}.code-entry button:disabled{opacity:.6;cursor:wait}.role-card form>p{margin:9px 0 0;color:rgba(255,255,255,.66);font-size:.78rem}.role-card form>p.error{color:#ffe1e1}.facilitator-link{align-self:flex-start;min-width:210px;margin-top:26px}.facilitator{background:rgba(0,69,145,.16)}
.landing-shell>footer{display:flex;justify-content:space-between;margin-top:auto;padding-top:30px;color:rgba(255,255,255,.68);font-size:.76rem}
@media(max-width:760px){.landing-shell{width:min(100% - 28px,560px);padding-top:25px}.intro{margin:58px 0 28px}.role-grid{grid-template-columns:1fr}.role-card{min-height:280px;padding:23px}.code-entry{flex-direction:column}.code-entry input,.code-entry button,.facilitator-link{width:100%}.landing-shell>footer{flex-direction:column;gap:10px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.guide-navigation{margin-top:24px}.guide-navigation a{display:inline-flex;align-items:center;gap:12px;min-height:44px;color:var(--white);font-size:.95rem;font-weight:700;text-underline-offset:5px}.guide-navigation a:hover{color:var(--soft)}.guide-navigation a:focus-visible{outline:2px solid var(--white);outline-offset:5px;border-radius:3px}
.ecg-availability{margin-top:20px;max-width:820px;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:rgba(2,62,138,.25);font-size:.9rem;line-height:1.55}.ecg-availability strong{display:block;color:var(--white)}.ecg-availability p{margin:6px 0 0;color:var(--white)}