.stack-page{max-width:800px;margin:0 auto}.stack-page h2{font-family:var(--font-display);color:var(--dark);margin:56px 0 12px;font-size:28px;font-weight:600}.stack-page>h2:first-child{margin-top:0}.stack-page p{color:var(--body-text);margin:12px 0;font-size:16px;line-height:1.75}.stack-video{aspect-ratio:16/9;border:1px solid var(--card-border);border-radius:var(--radius);background:var(--dark);width:100%;margin:20px 0;position:relative;overflow:hidden}.stack-video iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.stack-cards{grid-template-columns:repeat(2,1fr);gap:16px;margin:20px 0;display:grid}.stack-card{border:1px solid var(--card-border);border-radius:var(--radius);background:var(--white);padding:20px 22px}.stack-card-n{letter-spacing:.12em;color:var(--blue);font-size:12px;font-weight:600}.stack-card-title{font-family:var(--font-display);color:var(--dark);margin:6px 0 4px;font-size:18px;font-weight:600}.stack-card p{margin:0;font-size:15px;line-height:1.6}.stack-guide{margin-top:56px}.stack-machines{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.stack-machine{text-align:left;border:2px solid var(--card-border);border-radius:var(--radius);background:var(--white);cursor:pointer;flex-direction:column;gap:4px;padding:18px 20px;display:flex}.stack-machine.is-active{border-color:var(--blue);background:var(--tint)}.stack-machine-name{font-family:var(--font-display);color:var(--dark);font-size:20px;font-weight:600}.stack-machine-needs{color:var(--grey-mid);font-size:14px}.stack-prompt{border-radius:var(--radius-sm);background:var(--dark);margin:16px 0;overflow:hidden}.stack-prompt-head{border-bottom:1px solid var(--dark-border);letter-spacing:.1em;text-transform:uppercase;color:var(--mint);justify-content:space-between;align-items:center;padding:10px 16px 10px 24px;font-size:12px;display:flex}.stack-copy{border:1px solid var(--dark-border);border-radius:var(--radius-btn);background:var(--dark-card);color:var(--white);cursor:pointer;padding:6px 14px;font-size:13px}.stack-prompt pre{max-height:420px;margin:0;padding:20px 24px;overflow:auto}.stack-prompt code{color:var(--white);white-space:pre-wrap;font-size:13px;line-height:1.7}.stack-warn{border-left:4px solid var(--blue);background:var(--tint);border-radius:var(--radius-sm);color:var(--body-text);margin:16px 0;padding:14px 18px;font-size:15px;line-height:1.6}.stack-tracker{border:1px solid var(--card-border);border-radius:var(--radius);background:var(--white);margin:20px 0;padding:24px}.stack-rail{grid-template-columns:repeat(11,1fr);gap:6px;margin:0 0 20px;padding:0;list-style:none;display:grid}.stack-rail button{cursor:pointer;border-radius:var(--radius-sm);background:var(--tint);width:100%;height:32px;color:var(--grey-mid);border:0;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex}.stack-rail button:hover{outline:2px solid var(--blue)}.stack-rail button.is-done{background:var(--mint);color:var(--dark)}.stack-rail button.is-here{background:var(--blue);color:var(--white)}.stack-here-label{letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-size:12px;font-weight:600}.stack-here-title{font-family:var(--font-display);color:var(--dark);margin:6px 0 16px;font-size:22px;font-weight:600;line-height:1.35}.stack-next{margin-bottom:12px}.stack-tracker-actions{flex-wrap:wrap;gap:20px;display:flex}.stack-link{color:var(--blue);cursor:pointer;background:0 0;border:0;padding:0;font-size:15px;text-decoration:underline}.stack-stuck{border-top:1px solid var(--card-border);margin-top:20px;padding-top:20px}.stack-stuck-head{font-family:var(--font-display);color:var(--dark);font-size:18px;font-weight:600}.stack-pt{background:var(--tint);border-radius:var(--radius-sm);margin-top:12px;padding:16px 18px}.stack-pt-sit{color:var(--dark);font-size:15px;font-weight:600}.stack-page .stack-pt-txt{margin:6px 0 10px;font-size:15px;line-height:1.6}.stack-pt .stack-copy{background:var(--dark)}.stack-tip{background:var(--tint);border-radius:var(--radius-sm);padding:14px 18px}.stack-map{border:1px solid var(--card-border);border-radius:var(--radius);margin:16px 0 8px;display:block;overflow:hidden}.stack-map img{width:100%;height:auto;display:block}.stack-page .stack-map-open{margin:0;font-size:14px}.stack-btn-row{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:28px;display:flex}.stack-hero-note{color:var(--grey-mid);margin-top:16px;font-size:15px}.stack-anchor{scroll-margin-top:100px}.stack-cards--3{grid-template-columns:repeat(3,1fr);margin:0 0 8px}.stack-ctas{grid-template-columns:repeat(2,1fr);gap:16px;margin-top:64px;display:grid}.stack-cta{border-radius:var(--radius);background:var(--tint);flex-direction:column;align-items:flex-start;padding:32px;display:flex}.stack-cta h2{margin-top:0;font-size:24px}.stack-cta .btn{margin-top:auto}.stack-cta--dark{background:var(--dark)}.stack-page .stack-cta--dark h2{color:var(--white)}.stack-page .stack-cta--dark p{color:var(--white);opacity:.8}.stack-page .stack-cta-sub{margin:12px 0 0;font-size:14px}.stack-cta-sub a{color:var(--mint)}@media (max-width:640px){.stack-cards,.stack-cards--3,.stack-machines,.stack-ctas{grid-template-columns:1fr}.stack-rail{grid-template-columns:repeat(6,1fr)}}