.intro-seq{position:absolute;left:0;bottom:0;z-index:2;padding:0 2rem 2.5rem;max-width:min(90vw,42rem);display:flex;flex-direction:column;align-items:stretch;gap:.7rem;pointer-events:none;transition:opacity .2s ease}.intro-seq__sizer{visibility:hidden;height:0;overflow:hidden;pointer-events:none;margin-bottom:-.7rem}.intro-seq__sizer-row{display:block;white-space:nowrap;font-family:var(--font-space-mono),monospace;font-size:clamp(.7rem,1.4vw,.85rem);letter-spacing:.04em}.intro-seq__sizer-row--line2{display:flex;align-items:baseline;justify-content:space-between;gap:.6ch}.intro-seq__line1,.intro-seq__line3{margin:0;width:100%;font-family:var(--font-space-mono),monospace;font-size:clamp(.7rem,1.4vw,.85rem);line-height:1.5;letter-spacing:.04em;color:rgba(0,0,0,.72);min-height:1.5em}.intro-seq__line3{will-change:transform}.intro-seq__highlight{background:#000;color:#fff;padding:.05em .35em;border-radius:.15em}.intro-seq__cursor{display:inline-block;width:.55ch;height:1.05em;margin-left:.1ch;background:rgba(0,0,0,.72);transform:translateY(.18em);animation:introSeqCursorBlink 1.05s step-end infinite}@keyframes introSeqCursorBlink{0%,50%{opacity:1}50.01%,to{opacity:0}}.intro-seq__line2{margin:0;font-family:var(--font-space-mono),monospace;font-size:clamp(.7rem,1.4vw,.85rem);line-height:1.5;letter-spacing:.04em;color:rgba(0,0,0,.72);width:100%;display:flex;align-items:baseline;justify-content:space-between;gap:.6ch}.intro-seq__line2-tail{position:relative;white-space:nowrap}.intro-seq__line2-tail-ghost{visibility:hidden}.intro-seq__line2-tail-text{position:absolute;left:0;top:0;white-space:nowrap}@media (max-width:480px){.intro-seq{padding:0 1.25rem 1.75rem;gap:.5rem}.intro-seq__sizer{margin-bottom:-.5rem}.intro-seq__line1,.intro-seq__line2,.intro-seq__line3,.intro-seq__sizer-row{font-size:.65rem}}@media (prefers-reduced-motion:reduce){.intro-seq__cursor{animation:none;opacity:.6}}.point-cloud{position:absolute;inset:0;z-index:0;pointer-events:none;background:#fff}.point-cloud canvas{display:block;width:100%;height:100%}.story-progress{position:fixed;right:1.75rem;bottom:2.25rem;z-index:10;width:9px;height:min(160px,32vh);pointer-events:none}.sp-track{position:relative;width:9px;height:100%}.sp-track-line{bottom:0;background:var(--color-border-subtle)}.sp-track-fill,.sp-track-line{position:absolute;left:50%;top:0;width:1px;transform:translateX(-50%)}.sp-track-fill{background:var(--color-accent)}.sp-node{position:absolute;left:50%;width:5px;height:5px;transform:translate(-50%,-50%) rotate(45deg);background:var(--color-bg);border:1px solid var(--color-border-subtle)}.sp-node--passed{border-color:var(--color-accent);background:var(--color-accent)}.sp-node--active{border-color:var(--color-accent);background:var(--color-bg)}.sp-node--end{border-color:var(--color-border-subtle)}.sp-node--end.sp-node--passed{border-color:var(--color-accent);background:var(--color-accent)}.sp-group{margin-right:6px;width:4px;border:1px solid var(--color-border-subtle);border-right:none}.sp-act-label,.sp-group{position:absolute;right:100%;pointer-events:none}.sp-act-label{margin-right:12px;transform:translateY(-50%);font-family:var(--font-space-mono),monospace;font-size:8px;line-height:1;letter-spacing:.08em;color:var(--color-fg-muted-45);white-space:nowrap}.sp-marker{position:absolute;left:50%;width:7px;height:7px;transform:translate(-50%,-50%) rotate(45deg);background:var(--color-accent);box-shadow:0 0 0 3px rgba(196,92,38,.18)}@media (max-width:860px){.story-progress{display:none}}