:root{
  --bg:#0a0c11;--bg2:#0f121a;--card:#141824;--card2:#181d2b;--line:#232a3b;--line2:#2f3850;
  --fg:#eef1f7;--mut:#a3acbe;--dim:#7d869a;
  --acc:#7c9cff;--acc2:#5ee6c4;--warn:#ff8a8a;--fill:#ffcf5c;
  --r:14px;--shadow:0 20px 60px -20px rgba(0,0,0,.6);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased}
a{color:var(--acc)}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em}
h2{font-size:clamp(28px,4vw,40px);margin:0 0 16px;max-width:820px}
h3{font-size:18px;margin:0 0 8px}
p{margin:0 0 12px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:800px}
.center{text-align:center}
.muted{color:var(--mut)}
:focus-visible{outline:2px solid var(--acc2);outline-offset:3px;border-radius:6px}

.skip{position:absolute;left:-9999px;top:8px;background:var(--fg);color:var(--bg);padding:8px 14px;border-radius:8px;z-index:20}
.skip:focus{left:8px}

/* Header */
header.top{position:sticky;top:0;z-index:10;background:rgba(10,12,17,.82);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:24px;height:64px}
.logo{font-weight:800;letter-spacing:-.01em;color:var(--fg);text-decoration:none;font-size:17px}
.logo span{color:var(--acc2)}
nav{margin-left:auto;display:flex;gap:22px}
nav a{color:var(--mut);text-decoration:none;font-size:14px}
nav a:hover{color:var(--fg)}

/* Buttons: primary style, shown disabled until launch */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:700;border:0;border-radius:12px;color:#0a0c11;background:linear-gradient(90deg,var(--acc),var(--acc2));box-shadow:0 10px 30px -10px rgba(94,230,196,.5);cursor:pointer}
.btn:disabled{cursor:not-allowed;opacity:.92}
.btn:disabled::before{content:"";width:8px;height:8px;border-radius:50%;background:#0a0c11;opacity:.55}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;box-shadow:none}
.btn-lg{padding:16px 32px;font-size:18px}
.cta-note{font-size:14px;color:var(--dim);margin:12px 0 0}
.link-arrow{color:var(--fg);text-decoration:none;font-weight:600;border-bottom:1px solid var(--line2);padding-bottom:2px}
.link-arrow::after{content:" \2193";color:var(--acc2)}
.link-arrow:hover{border-color:var(--acc2)}

/* Hero */
.hero{padding:88px 0 64px;background:
  radial-gradient(900px 480px at 15% -10%,rgba(124,156,255,.22),transparent 70%),
  radial-gradient(700px 420px at 95% 10%,rgba(94,230,196,.12),transparent 70%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--acc2);background:rgba(94,230,196,.08);border:1px solid rgba(94,230,196,.25);padding:6px 12px;border-radius:999px;margin-bottom:22px}
.hero h1{font-size:clamp(38px,5.6vw,64px);line-height:1.04;margin:0 0 22px;letter-spacing:-.035em}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--acc),var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{font-size:clamp(18px,2vw,20px);color:var(--mut);max-width:620px;margin-bottom:30px}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:22px}
.facts{list-style:none;padding:0;margin:30px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.facts li{font-size:14px;color:var(--mut);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 14px}
.facts strong{color:var(--fg);margin-right:4px}
.center-facts{justify-content:center;margin:0 0 30px}

/* Flow diagram */
.flow{margin:0;background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line2);border-radius:20px;padding:26px 26px 22px;box-shadow:var(--shadow)}
.flow-title{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);margin-bottom:16px}
.flow ol{list-style:none;margin:0;padding:0;position:relative}
.flow ol::before{content:"";position:absolute;left:9px;top:12px;bottom:12px;width:2px;background:linear-gradient(var(--acc),var(--acc2))}
.step{display:flex;gap:16px;align-items:flex-start;padding:9px 0;position:relative}
.step .dot{flex:0 0 20px;height:20px;border-radius:50%;background:var(--bg);border:2px solid var(--acc);margin-top:2px;position:relative;z-index:1}
.step b{display:block;font-size:16px}
.step span{display:block;color:var(--mut);font-size:15px;line-height:1.45}
.step.gate{background:rgba(255,207,92,.07);border:1px solid rgba(255,207,92,.35);border-radius:12px;padding:10px 12px;margin:6px -12px}
.step.gate .dot{border-color:var(--fill);background:var(--fill)}
.step.gate b{color:var(--fill)}
.proof{margin:16px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:14px;color:var(--mut)}
.proof b{color:var(--acc2)}

/* Sections */
section{padding:88px 0;border-top:1px solid var(--line)}
section.hero{border-top:0}
.band{background:var(--bg2)}
.kicker{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--acc);margin-bottom:12px}
.lead{font-size:19px;color:var(--mut);max-width:720px;margin-bottom:36px}
.source-note{text-align:center;color:var(--mut);font-style:italic;margin:32px 0 0}
.source-note.left{text-align:left;margin-top:16px}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.card p{color:var(--mut);margin:0}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.two{display:grid;gap:20px;grid-template-columns:1fr 1fr}

/* Lists with marks */
.marks{list-style:none;padding:0;margin:0}
.marks li{position:relative;padding-left:32px;margin:12px 0}
.marks li::before{position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:800}
.marks.check li::before{content:"\2713";color:#0a0c11;background:var(--acc2)}
.marks.x li::before{content:"\2715";color:var(--warn);background:rgba(255,138,138,.12);border:1px solid rgba(255,138,138,.35)}
.marks.file li::before{content:"";width:12px;height:15px;top:6px;left:4px;border-radius:2px;border:2px solid var(--acc)}
ol.list{padding-left:22px;margin:0}
ol.list li{margin:10px 0;padding-left:4px}
ol.list li::marker{color:var(--acc);font-weight:700}

/* Compare */
.compare{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px}
.col{border-radius:var(--r);padding:28px;border:1px solid var(--line)}
.col h3{font-size:20px;margin-bottom:12px}
.before{background:linear-gradient(180deg,rgba(255,138,138,.06),transparent 60%),var(--card)}
.before li{color:var(--mut)}
.after{background:linear-gradient(180deg,rgba(94,230,196,.07),transparent 60%),var(--card);border-color:rgba(94,230,196,.3)}

/* Steps */
.steps{list-style:none;padding:0;margin:0;display:grid;gap:16px;grid-template-columns:repeat(4,1fr);counter-reset:s}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.steps li::before{content:counter(s,decimal-leading-zero);display:block;font-size:14px;font-weight:800;color:var(--acc);margin-bottom:14px}
.steps p{color:var(--mut);margin:0}

/* Gates */
.gates{display:grid;gap:16px;grid-template-columns:repeat(4,1fr);margin:36px 0 24px}
.gate-card{background:var(--card);border:1px solid rgba(255,207,92,.28);border-radius:var(--r);padding:24px}
.gate-card p{color:var(--mut);margin:0;font-size:15px}
.lock{display:block;width:18px;height:14px;border:2px solid var(--fill);border-radius:3px;margin:10px 0 16px;position:relative}
.lock::before{content:"";position:absolute;left:2px;top:-10px;width:10px;height:9px;border:2px solid var(--fill);border-bottom:0;border-radius:6px 6px 0 0}

/* Fit */
.yes{border-color:rgba(94,230,196,.3)}
.no{border-color:rgba(255,138,138,.25)}
.no li{color:var(--mut)}

/* Modules */
.mod{transition:border-color .2s,transform .2s}
.mod:hover{border-color:var(--line2);transform:translateY(-2px)}
.num{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--acc);margin-bottom:8px}
.unlock{display:grid;grid-template-columns:1.4fr .6fr;gap:20px;margin-top:40px}
.unlock h3{font-size:20px;margin-bottom:8px}
.snippet{margin:20px 0 0;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px;font:13px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--acc2)}

/* Need */
.need{border-color:var(--line2)}
.need .muted{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}

/* Author */
.author{display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:start;max-width:880px}
.avatar{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:30px;color:#0a0c11;background:linear-gradient(135deg,var(--acc),var(--acc2))}
.author p{color:var(--mut)}

/* FAQ */
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin:10px 0}
details[open]{border-color:var(--line2)}
summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--acc);font-weight:800;font-size:20px;line-height:1}
details[open] summary::after{content:"\2212"}
details p{color:var(--mut);margin:12px 0 0}

/* Placeholders: must stay visible until Madson fills them */
.fill{border:2px dashed var(--fill);color:var(--fill);background:rgba(255,207,92,.07);border-radius:10px;padding:12px 16px;margin:28px auto 0;max-width:720px;font-size:14px;text-align:left}
.fill::before{content:"PLACEHOLDER: ";font-weight:800}
details .fill{margin:12px 0 0;max-width:none}

/* Final */
.final{text-align:center;padding:104px 0;background:radial-gradient(700px 360px at 50% 120%,rgba(124,156,255,.22),transparent 70%)}
.final h2{margin:0 auto 12px;font-size:clamp(32px,5vw,48px)}
.final .lead{margin:0 auto 26px}

footer{padding:32px 0;color:var(--dim);font-size:13px;border-top:1px solid var(--line);text-align:center}

/* Responsive */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .steps,.gates{grid-template-columns:repeat(2,1fr)}
  .unlock,.compare{grid-template-columns:1fr}
}
@media (max-width:720px){
  body{font-size:16px}
  nav{display:none}
  .bar{justify-content:space-between}
  .hero{padding:56px 0 48px}
  section{padding:64px 0}
  .two,.steps,.gates{grid-template-columns:1fr}
  .author{grid-template-columns:1fr;gap:20px}
  .avatar{width:72px;height:72px;font-size:24px}
  .btn-lg{width:100%}
  .cta-row{gap:16px}
  .link-arrow{margin:0 auto}
  .hero .cta-note{text-align:center}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .mod{transition:none}
  .mod:hover{transform:none}
}