/* Local system font: no request to a font provider. */
:root{color-scheme:dark;--bg:#06101c;--surface:#0d1a2a;--text:#fdfbfc;--muted:#acc0d4;--blue:#009aff;--line:#31485e;--radius:12px;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-synthesis:none}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.6}
a{color:inherit;text-underline-offset:4px}
button,input,textarea{font:inherit}
button,a,label,input,textarea,summary{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.55}
img,video,canvas{max-width:100%;height:auto}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{line-height:1.2;letter-spacing:-.025em}
p{margin-bottom:1em}
h3{font-size:1.2rem}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #8dd3ff;outline-offset:5px}
::selection{background:#075e92;color:#fff}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;z-index:10;top:10px;left:16px;padding:12px;background:var(--text);color:var(--bg);transform:translateY(-150%)}
.skip-link:focus{transform:none}
.site-header{max-width:1344px;margin:auto;padding:24px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}
.wordmark{font-size:1.75rem;font-weight:800;letter-spacing:-.06em;line-height:1.15;text-decoration:none;white-space:nowrap}
.wordmark>span:first-child{color:var(--blue)}
.wordmark-caption{display:block;margin-top:6px;color:var(--muted);font-size:.61rem;font-weight:600;letter-spacing:.15em}
.site-header nav{display:flex;flex-wrap:wrap;gap:4px 20px}
.site-header nav a{text-decoration:none;font-size:.84rem;color:var(--muted);padding:8px 0;white-space:nowrap}
.site-header nav a:hover{color:var(--text);text-decoration:underline}
.section{max-width:1280px;margin:auto;padding:88px 32px;border-bottom:1px solid var(--line)}
.hero{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding-top:64px;padding-bottom:64px;min-height:670px}
.eyebrow{font-size:.7rem;font-weight:700;letter-spacing:.13em;color:var(--muted);line-height:1.6;margin-bottom:20px}
.eyebrow span{color:var(--blue);margin:0 6px}
.hero h1{font-size:clamp(2.75rem,4.2vw,4.5rem);line-height:1.08;letter-spacing:-.055em;margin-bottom:24px;font-weight:800}
.hero h1 span{color:var(--blue)}
.hero-description{font-size:1.1rem;color:var(--muted);max-width:440px}
.hero-note{max-width:400px;margin:28px 0 0;font-size:.85rem;color:var(--muted);padding-left:16px;border-left:2px solid var(--blue)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:48px;padding:12px 20px;border-radius:6px;border:1px solid transparent;text-decoration:none;font-size:.88rem;font-weight:700;line-height:1.5}
.primary{background:var(--blue);color:var(--bg)}
.primary:hover{background:#50baff}
.secondary{background:transparent;color:var(--text);border-color:var(--line)}
.secondary:hover{background:#173048}
.principles{list-style:none;margin:0;padding:0}
.principles li{display:flex;gap:20px;padding:18px 0;border-top:1px solid var(--line)}
.principles li:last-child{padding-bottom:0}
.principle-number{flex:0 0 26px;color:var(--blue);font-size:.8rem;line-height:1.5;font-weight:700}
.principles h2{font-size:1rem;line-height:1.4;margin-bottom:5px;letter-spacing:-.01em}
.principles h2 a{text-decoration:none}
.principles h2 a:hover{text-decoration:underline}
.principles p{font-size:.83rem;color:var(--muted);line-height:1.5;margin:0}
.section-heading{max-width:700px;margin-bottom:32px}
.section-heading .eyebrow{color:var(--blue);margin-bottom:12px}
.section-heading h2,.recording h2{font-size:clamp(1.8rem,3vw,2.7rem);letter-spacing:-.045em;margin-bottom:16px}
.section-heading>p:last-child{color:var(--muted);margin:0}
.prompt-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start}
.panel{background:var(--surface);padding:28px;border:1px solid var(--line);border-radius:var(--radius)}
label{display:block;font-weight:700;font-size:.9rem;margin-bottom:10px}
.field-number{display:inline-flex;justify-content:center;align-items:center;width:24px;height:24px;border-radius:50%;background:#123c5a;color:#9edaff;margin-right:6px;font-size:.75rem}
.field-hint{display:block;color:var(--muted);font-size:.82rem;font-weight:400;padding-left:34px;margin-top:2px}
textarea,input[type=text],input:not([type]){width:100%;background:var(--bg);border:1px solid #526e86;border-radius:6px;color:var(--text);padding:12px;margin-bottom:20px}
textarea{resize:vertical;min-height:82px}
input::placeholder,textarea::placeholder{color:#a3b8cb;opacity:1}
#participant-name{width:100%;background:var(--bg);border:1px solid #526e86;border-radius:6px;color:var(--text);padding:12px;margin-bottom:12px}
.action-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px}
.action-row p{font-size:.8rem;color:var(--muted);margin:0}
.prompt-aside{padding-top:8px}
.prompt-template{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;font:inherit;font-size:.9rem;line-height:1.7;background:var(--surface);padding:24px;border-left:3px solid var(--blue);border-radius:0 8px 8px 0;max-height:560px;overflow:auto}
.small-copy{font-size:.82rem;color:var(--muted)}
.prompt-aside h3{margin:28px 0 16px}
.prompt-aside h3:first-child{margin-top:0}
.field-guide dl{margin:0 0 20px}
.field-guide dt{color:var(--text);font-weight:700;margin-top:16px}
.field-guide dd{margin:4px 0 0}
.prompt-card .prompt-template{max-height:none;overflow:visible;margin-top:0;padding:20px;font-size:.9rem}
.prompt-card .prompt-check{color:var(--text)}
.test-note{font-size:.85rem;line-height:1.65;border-left:2px solid var(--line);padding-left:14px}
.role-takeaway,.challenge-after{margin:28px 0 0;color:var(--muted);font-size:.9rem}
details{border-bottom:1px solid var(--line);padding:0}
summary{cursor:pointer;padding:18px 6px;font-weight:600;line-height:1.5}
details>p,details>div{padding:0 8px 8px;color:var(--muted)}
.pending{font-size:.9rem;color:#c7d7e5;background:#142539;border:1px dashed #526e86;border-radius:6px;padding:16px;overflow-wrap:anywhere}
.role-picker{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:0;padding:0;margin:0;position:relative}
.role-picker>input{position:absolute;width:1px;height:1px;opacity:0}
.role-picker>label{margin:0;padding:16px;text-align:center;cursor:pointer;font-size:.95rem;color:var(--muted);border-bottom:2px solid var(--line)}
.role-picker>input:checked+label{color:var(--text);border-color:var(--blue);background:var(--surface)}
.role-picker>input:focus-visible+label{outline:3px solid #8dd3ff;outline-offset:-4px}
.role-content{grid-column:1/-1;display:none;padding:32px;background:var(--surface);border:1px solid var(--line);border-top:0;border-radius:0 0 var(--radius) var(--radius)}
#role-operation:checked~#role-operation-content,#role-management:checked~#role-management-content,#role-development:checked~#role-development-content{display:block}
.role-content h3{margin-bottom:18px}
.role-content pre{white-space:pre-wrap;overflow-wrap:anywhere}
.challenge-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.challenge-grid>li{padding:24px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.challenge-grid .eyebrow{color:var(--blue)}
.challenge-grid h3{font-size:1.1rem;line-height:1.4}
.challenge-grid>li>p:not(.eyebrow){font-size:.9rem}
.challenge-grid .challenge-check{color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-bottom:0}
.challenge-grid .pending{font-size:.8rem;padding:10px;margin:0}
.demo-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:36px 24px}
.demo video{display:block;width:100%;aspect-ratio:16/9;border-radius:8px;margin-bottom:20px;background:var(--surface)}
.demo .eyebrow{font-size:.65rem;margin-bottom:8px}
.demo h3{font-size:1.1rem;margin-bottom:10px}
.demo>p:not(.eyebrow){font-size:.85rem;color:var(--muted)}
.availability{font-size:.75rem!important;display:inline-block;border:1px solid var(--line);border-radius:99px;padding:4px 12px;color:var(--muted);white-space:nowrap;margin:0}
.certificate-layout{display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:40px}
.certificate-stage{min-width:0;border-radius:8px;overflow:hidden;background:#fdfbfc;color:var(--bg);border:1px solid var(--line)}
.certificate-placeholder{text-align:center;padding:30px 20px;border:8px solid #0d1a2a}
.certificate-placeholder .eyebrow{font-size:.6rem;letter-spacing:.18em;color:#355674;margin-bottom:16px}
.certificate-display-title{font-size:2.5rem;font-weight:800;line-height:1.2;margin-bottom:10px;letter-spacing:-.05em}
.certificate-placeholder>p:not(.eyebrow):not(.certificate-display-title){font-size:.75rem;color:#355674}
.name-placeholder{font-size:1.25rem;margin:28px 0;color:#355674;border-bottom:1px solid #a4b4c2;padding-bottom:12px}
.certificate-stage img{display:block;width:100%}
.certificate-stage:has(#certificate-preview:not([hidden])) .certificate-placeholder{display:none}
.error-message{color:#ffb9b9;font-size:.9rem}
.notice{border-left:3px solid var(--blue);padding-left:16px;font-size:.9rem}
.recording{display:flex;align-items:center;justify-content:space-between;gap:24px;background:linear-gradient(110deg,#0d1a2a,var(--bg));margin-top:0}
.recording p:last-child{color:var(--muted);margin-bottom:0}
.site-footer{max-width:1280px;margin:auto;padding:40px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-footer p{color:var(--muted);font-size:.75rem;margin:0}
.site-footer .wordmark{font-size:1.4rem}

@media(min-width:1600px){.hero{min-height:720px}
}

@media(max-width:1100px){.site-header{align-items:flex-start;gap:28px}
.site-header nav{gap:0 16px}
.hero{gap:32px}
.demo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.challenge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:760px){html{scroll-padding-top:24px}
.site-header{display:block;padding:22px 20px}
.site-header nav{margin-top:20px;gap:0 20px}
.site-header nav a{font-size:.8rem}
.section{padding:56px 20px}
.hero{grid-template-columns:1fr;gap:44px;padding-top:40px;min-height:0}
.hero h1{font-size:clamp(2.6rem,8.8vw,4rem)}
.hero-description{font-size:1rem}
.hero .eyebrow{font-size:.65rem}
.hero-note{margin-top:24px}
.principles li{padding:17px 0}
.principles h2{font-size:.95rem}
.section-heading h2,.recording h2{font-size:2rem}
.prompt-layout,.certificate-layout{grid-template-columns:1fr;gap:28px}
.panel{padding:20px}
.prompt-aside{padding:0}
.role-picker>label{font-size:.82rem;padding:14px 8px;display:flex;align-items:center;justify-content:center}
.role-content{padding:22px 18px}
.challenge-grid{grid-template-columns:1fr;gap:12px}
.challenge-grid>li{padding:20px 14px}
.demo-grid{gap:28px 16px}
.demo h3{font-size:1rem}
.demo .eyebrow{font-size:.59rem;letter-spacing:.07em}
.demo video{margin-bottom:16px}
.recording{display:block}
.recording .availability{margin-top:24px}
.site-footer{display:block;padding:32px 20px}
.site-footer p{margin-top:16px}
.certificate-placeholder{padding:28px 12px}
}

@media(max-width:400px){.hero h1{font-size:2.65rem}
.section-heading h2,.recording h2{font-size:1.8rem}
.challenge-grid,.demo-grid{grid-template-columns:1fr}
.demo-grid{gap:32px}
.demo video{max-height:220px}
.demo .eyebrow{font-size:.68rem}
.role-picker>label{font-size:.77rem}
.button{padding:12px 16px;font-size:.84rem}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
}

@media print{body{background:#fff;color:#000}
.site-header,.site-footer,.skip-link,.action-row,button,video{display:none!important}
.section{padding:24px 0;break-inside:avoid}
.hero{display:block}
.hero h1 span,.eyebrow,.principle-number{color:#12466b}
.role-content{display:block!important}
.role-picker>label{display:none}
.panel,.role-content,.challenge-grid>li{background:#fff;color:#000}
.pending{color:#000;background:#fff}
.small-copy,p{color:#333!important}
}