.reader-shell{display:grid;grid-template-columns:var(--rail-width,280px) minmax(0,1fr);grid-gap:var(--s-8);gap:var(--s-8);align-items:start;max-width:var(--content-max);margin:0 auto}@media (max-width:1024px){.reader-shell{gap:var(--s-6)}}@media (max-width:768px){.reader-shell{grid-template-columns:1fr;gap:var(--s-6)}}.reader-rail-wrap{position:-webkit-sticky;position:sticky;top:var(--s-6);display:flex;flex-direction:column;gap:var(--s-4);max-height:calc(100vh - var(--s-12));overflow-y:auto;padding-right:var(--s-2)}.reader-back{display:flex;padding-bottom:var(--s-3);border-bottom:1px solid var(--hairline)}.reader-back-link{display:inline-flex;align-items:center;gap:4px;font-size:var(--t-label);font-family:var(--font-ui);text-transform:uppercase;letter-spacing:var(--tracking-wide);color:var(--fg-muted);text-decoration:none;transition:color var(--motion-fast)}.reader-back-link:hover{color:var(--accent)}.reader-rail{gap:var(--s-6)}.reader-rail,.reader-rail-section{display:flex;flex-direction:column}.reader-rail-section{gap:var(--s-2)}.reader-rail-heading{font-family:var(--font-display);font-size:var(--t-label);font-weight:600;text-transform:uppercase;letter-spacing:var(--tracking-wide);color:var(--fg);margin:0 0 4px}.reader-rail-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.reader-rail-item{display:block;padding:7px 12px;border-radius:var(--r-md);font-family:var(--font-ui);font-size:13px;color:var(--fg-muted);text-decoration:none;line-height:1.4;transition:background var(--motion-fast),color var(--motion-fast)}.reader-rail-item:hover{background:var(--bg-sunken);color:var(--fg)}.reader-rail-item.is-current{background:var(--accent-soft);color:var(--accent);font-weight:500}.reader-rail-empty{margin:0;padding:4px 12px;font-size:12px;color:var(--fg-subtle);font-style:italic}.reader-main{gap:var(--s-6);min-width:0}.reader-header,.reader-main{display:flex;flex-direction:column}.reader-header{gap:var(--s-3);padding-top:var(--s-4);padding-bottom:var(--s-5);padding-right:132px;border-bottom:1px solid var(--hairline);position:-webkit-sticky;position:sticky;top:0;z-index:6;background:var(--bg-canvas)}.reader-title{font-family:var(--font-display);font-size:var(--t-page);font-weight:600;letter-spacing:var(--tracking-page);line-height:1.15;color:var(--fg);margin:0}.reader-desc{font-family:var(--font-ui);font-size:16px;line-height:1.55;color:var(--fg-muted);max-width:64ch;margin:0}.reader-video-sentinel{height:1px;margin:0;pointer-events:none}.reader-video-spacer{display:block;flex-shrink:0;pointer-events:none}.reader-video-frame{position:relative;z-index:5;align-self:stretch;border-radius:var(--r-xl);overflow:hidden;background:#000;border:1px solid var(--border);box-shadow:var(--shadow-card);transition:max-width .24s ease-out,margin .24s ease-out}.reader-video-stage{position:relative;width:100%}.reader-video{width:100%;display:block;aspect-ratio:16/9}.reader-video-play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.28);border:none;padding:0;cursor:pointer;z-index:3;transition:background var(--motion-fast)}.reader-video-play-overlay:hover{background:rgba(0,0,0,.38)}.reader-video-play-icon{display:flex;align-items:center;justify-content:center;width:112px;height:112px;border-radius:50%;background:var(--accent);color:#ffffff;padding-left:8px;transition:transform var(--motion-fast),background var(--motion-fast),box-shadow var(--motion-fast);box-shadow:0 12px 36px color-mix(in srgb,var(--accent) 55%,transparent),0 0 0 6px color-mix(in srgb,var(--accent) 14%,transparent),inset 0 1px 0 rgba(255,255,255,.18)}.reader-video-play-overlay:hover .reader-video-play-icon{transform:scale(1.05);background:var(--accent-hover);box-shadow:0 16px 44px color-mix(in srgb,var(--accent) 65%,transparent),0 0 0 8px color-mix(in srgb,var(--accent) 18%,transparent),inset 0 1px 0 rgba(255,255,255,.22)}.reader-video-play-icon svg{width:44px;height:44px}.reader-video-frame.is-stuck .reader-video-play-icon{width:72px;height:72px;padding-left:5px}.reader-video-frame.is-stuck .reader-video-play-icon svg{width:28px;height:28px}.reader-video-frame.is-stuck{position:fixed;top:auto;bottom:var(--s-6);left:max(0px,calc((100vw - var(--content-max)) / 2));right:auto;width:calc(var(--rail-width, 280px) + var(--s-8) / 2);max-width:100vw;margin:0;z-index:100;box-shadow:0 12px 36px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.06);animation:reader-video-dock-enter .32s ease-out both;-webkit-user-select:none;-moz-user-select:none;user-select:none}.reader-video-frame.is-stuck.is-dragging{transition:none;box-shadow:0 16px 48px rgba(0,0,0,.65),0 0 0 1px rgba(255,255,255,.1)}.reader-video-dock-handle{display:flex;align-items:center;justify-content:space-between;height:28px;padding:0 var(--s-2) 0 var(--s-3);background:rgba(15,18,27,.85);border-bottom:1px solid rgba(255,255,255,.06);cursor:-webkit-grab;cursor:grab;touch-action:none}.reader-video-frame.is-stuck.is-dragging .reader-video-dock-handle{cursor:-webkit-grabbing;cursor:grabbing}.reader-video-dock-grip{display:inline-flex;align-items:center;gap:3px;color:rgba(255,255,255,.42);pointer-events:none}.reader-video-dock-grip-dot{width:3px;height:3px;border-radius:50%;background:currentColor}.reader-video-frame.is-stuck .reader-video{cursor:auto}@keyframes reader-video-dock-enter{0%{opacity:0}to{opacity:1}}@media (prefers-reduced-motion:reduce){.reader-video-frame.is-stuck{animation:none}}@media (max-width:1024px){.reader-video-frame.is-stuck{width:360px}}@media (max-width:640px){.reader-video-frame.is-stuck{width:calc(100vw - var(--s-6) * 2);left:var(--s-3);right:var(--s-3);bottom:var(--s-3)}}.reader-video-frame.is-dismissed,.reader-video-frame.is-stuck .reader-chapters{display:none}@media (prefers-reduced-motion:reduce){.reader-video-frame{transition:none}}.reader-video-dismiss{display:flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:transparent;color:rgba(255,255,255,.62);border:none;cursor:pointer;font-size:14px;line-height:1;padding:0;transition:background var(--motion-fast),color var(--motion-fast)}.reader-video-dismiss:hover{background:rgba(255,255,255,.12);color:#ffffff}.reader-video-empty{color:var(--fg-subtle);font-size:13px}.reader-empty-version,.reader-video-empty{padding:var(--s-12) var(--s-6);text-align:center;background:var(--bg-elevated);border:1px dashed var(--border-strong);border-radius:var(--r-xl)}.reader-empty-version{color:var(--fg-muted)}.reader-empty-version p{margin:0 auto;font-size:14px;line-height:1.6;max-width:60ch}.reader-chapters{display:flex;align-items:stretch;gap:0;width:100%;height:26px;padding:0;margin:0;border-radius:0;background:#0a0a0a;border:none;border-top:1px solid rgba(255,255,255,.08)}.reader-chapter{position:relative;flex-shrink:0;border:none;padding:0;margin:0;cursor:pointer;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-feature-settings:"tnum";font-size:10px;letter-spacing:.02em;color:rgba(255,255,255,.42);background-color:rgba(255,255,255,.04);transition:background-color var(--motion-fast),color var(--motion-fast),box-shadow var(--motion-fast);outline-offset:-2px;min-width:0;box-shadow:inset 1px 0 0 rgba(0,0,0,.4)}.reader-chapter:first-child{box-shadow:none}.reader-chapter:hover{background-color:rgba(255,255,255,.1);color:rgba(255,255,255,.85)}.reader-chapter.is-active{background-color:var(--accent);color:var(--accent-fg);font-weight:600;z-index:1}.reader-chapter-num{display:block;white-space:nowrap;overflow:hidden;text-overflow:clip}.reader-mode-toggle{position:absolute;top:var(--s-4);right:0;display:inline-flex;align-items:center;gap:4px;padding:4px 12px;background:transparent;color:var(--fg-muted);border:1px solid var(--border);border-radius:var(--r-pill);font-family:var(--font-ui);font-size:12px;font-weight:500;cursor:pointer;transition:background var(--motion-fast),border-color var(--motion-fast),color var(--motion-fast)}.reader-mode-toggle:hover{border-color:var(--border-strong);color:var(--fg)}.reader-mode-toggle.is-active{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 45%,transparent);color:var(--accent)}.article-body{gap:1px;max-width:100%;border:1px solid var(--border);border-radius:var(--r-xl);overflow:hidden}.article-body,.article-step{display:flex;flex-direction:column;background:var(--bg-elevated)}.article-step{scroll-margin-top:96px;transition:background var(--motion-fast)}.article-step-row{display:grid;grid-template-columns:72px minmax(0,1fr) 110px;grid-gap:var(--s-4);gap:var(--s-4);align-items:center;width:100%;padding:var(--s-3) var(--s-5);background:transparent;border:none;border-left:3px solid transparent;cursor:pointer;text-align:left;transition:background var(--motion-fast),border-color var(--motion-fast)}.article-step-row:hover{background:var(--bg-sunken)}.article-step.is-active .article-step-row{border-left-color:var(--accent)}.article-step.is-expanded .article-step-row{padding-bottom:var(--s-2);cursor:default;grid-template-columns:72px minmax(0,1fr)}.article-step-num{font-family:var(--font-mono);font-feature-settings:"tnum";font-size:var(--t-label);font-weight:500;color:var(--fg-subtle);text-transform:uppercase;letter-spacing:var(--tracking-wide);white-space:nowrap}.article-step.is-active .article-step-num{color:var(--accent)}.article-step-title{font-family:var(--font-display);font-size:15px;font-weight:500;color:var(--fg);letter-spacing:var(--tracking-tight);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.article-step.is-expanded .article-step-title{font-size:22px;font-weight:600;letter-spacing:var(--tracking-section);white-space:normal;line-height:1.3;color:var(--accent)}.article-step-thumb{display:block;width:100%;max-width:110px;border-radius:var(--r-sm);overflow:hidden;background:#000;border:1px solid var(--border);justify-self:end}.article-step-thumb-svg{display:block;width:100%;height:100%}.article-step-thumb-bare{display:block;width:100%;max-width:110px;height:auto;border-radius:var(--r-sm);border:1px solid var(--border);justify-self:end}.article-step-thumb-empty{display:block;width:110px;height:1px;justify-self:end}.article-step-expansion{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease-out}.article-step.is-expanded .article-step-expansion{grid-template-rows:1fr}@media (prefers-reduced-motion:reduce){.article-step-expansion{transition:none}}.article-step-expansion-inner{overflow:hidden;min-height:0}.article-step.is-expanded .article-step-expansion-inner{display:flex;flex-direction:column;gap:var(--s-4);padding:0 var(--s-5) var(--s-6) calc(var(--s-5) + 72px + var(--s-4))}.article-step-footer{display:flex;align-items:center;gap:var(--s-3)}.article-step-watch{display:inline-flex;align-items:center;gap:4px;background:transparent;border:none;padding:0;font-family:var(--font-ui);font-size:12px;color:var(--fg-subtle);cursor:pointer;transition:color var(--motion-fast)}.article-step-watch:hover{color:var(--accent)}.article-step-tryit{display:inline-flex;align-items:center;gap:4px;margin-left:var(--s-3);padding:3px 9px;background:transparent;color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 55%,transparent);border-radius:var(--r-md);font-family:var(--font-ui);font-size:11px;font-weight:500;text-decoration:none;flex-shrink:0;white-space:nowrap;transition:background var(--motion-fast),border-color var(--motion-fast)}.article-step-tryit:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.article-step-prose{font-family:var(--font-ui);font-size:16px;line-height:1.7;color:var(--fg);letter-spacing:var(--tracking-normal);margin:0;max-width:64ch}.article-step-screenshot,.article-step-screenshot-bare{position:relative;display:block;width:100%;max-width:640px;margin:0 auto;padding:0;background:transparent;border:none;border-radius:var(--r-lg);overflow:hidden;cursor:pointer;box-shadow:0 2px 6px rgba(0,0,0,.35),0 16px 40px rgba(0,0,0,.28);transition:box-shadow var(--motion-fast),transform var(--motion-fast)}.article-step-screenshot-bare:hover,.article-step-screenshot:hover{box-shadow:0 4px 12px rgba(0,0,0,.42),0 20px 48px rgba(0,0,0,.36)}.article-step-image{display:block;width:100%;height:auto}.article-step-overlay{display:block;width:100%;height:100%;pointer-events:none}.article-step-target-rect{fill:none;stroke:var(--accent);stroke-width:4;filter:drop-shadow(0 0 8px color-mix(in srgb,var(--accent) 60%,transparent))}.article-step-arrow-line{fill:none;stroke:var(--accent);stroke-width:5;stroke-linecap:round}.article-step-arrow-head{fill:var(--accent)}.article-step-secondary-rect{fill:none;stroke:var(--accent);stroke-width:1.5;stroke-dasharray:6 4;opacity:.55}.article-step-caption-pill{position:absolute;z-index:2;display:inline-block;padding:5px 10px;border-radius:6px;background:rgba(11,13,18,.96);border:1px solid color-mix(in srgb,var(--accent) 85%,transparent);color:#ffffff;font-family:var(--font-ui);font-size:12px;font-weight:500;letter-spacing:var(--tracking-normal);line-height:1.35;white-space:nowrap;max-width:60%;text-overflow:ellipsis;overflow:hidden;pointer-events:none;box-shadow:0 3px 12px rgba(0,0,0,.32),0 0 10px color-mix(in srgb,var(--accent) 20%,transparent)}.article-step-caption-pill--left{transform:translate(-100%,-50%)}.article-step-caption-pill--right{transform:translateY(-50%)}.article-step-caption-pill--top{transform:translate(-50%,-100%)}.article-step-caption-pill--bottom{transform:translate(-50%)}.article-step-inset-bg{fill:color-mix(in srgb,var(--bg-sunken) 80%,transparent)}.article-step-inset-border{fill:none;stroke:color-mix(in srgb,var(--accent) 80%,transparent);stroke-width:2.5;filter:drop-shadow(0 3px 10px rgba(0,0,0,.28))}.article-step-inset-label{font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.02em;fill:rgba(255,255,255,.95);paint-order:stroke;stroke:rgba(15,18,27,.78);stroke-width:4;stroke-linejoin:round}.article-step-stale-chip{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;margin-left:var(--s-2);background:color-mix(in srgb,var(--warning) 14%,transparent);color:var(--warning);border:1px solid color-mix(in srgb,var(--warning) 28%,transparent);border-radius:var(--r-pill);font-family:var(--font-ui);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:var(--tracking-wide);vertical-align:middle}.reader-stale-banner{display:flex;align-items:flex-start;gap:var(--s-3);margin-top:var(--s-4);padding:var(--s-3) var(--s-4);background:color-mix(in srgb,var(--warning) 10%,var(--bg-elevated));border:1px solid color-mix(in srgb,var(--warning) 28%,var(--border));border-radius:var(--r-md);font-family:var(--font-ui);font-size:13px;line-height:1.55;color:var(--fg)}.reader-stale-banner-icon{font-size:16px;line-height:1.2;color:var(--warning);flex-shrink:0}.reader-feedback{margin-top:var(--s-8);padding:var(--s-8) 0 var(--s-8);border-top:1px solid var(--border);display:flex;flex-direction:column;align-items:center;gap:var(--s-3);text-align:center}.reader-feedback-thumbs-row{display:inline-flex;align-items:center;gap:var(--s-3);flex-wrap:wrap;justify-content:center}.reader-feedback-prompt{font-size:13px;color:var(--fg-muted);font-weight:500;letter-spacing:var(--tracking-tight)}.reader-feedback-thumb{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 var(--s-3);background:transparent;border:1px solid var(--border);border-radius:var(--r-pill);color:var(--fg);font-size:12px;font-weight:500;cursor:pointer;transition:border-color var(--motion-fast),color var(--motion-fast),background var(--motion-fast)}.reader-feedback-thumb:hover{color:var(--fg);border-color:var(--border-strong)}.reader-feedback-thumb.is-active{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 50%,var(--border));background:var(--accent-soft)}.reader-feedback-thumb svg{flex-shrink:0}.reader-feedback-vote-error{font-size:12px;color:var(--error);margin:0}.reader-feedback-comment-toggle{background:none;border:none;padding:0;color:var(--fg-muted);font-size:12px;font-weight:500;cursor:pointer;transition:color var(--motion-fast)}.reader-feedback-comment-toggle:hover{color:var(--fg)}.reader-feedback-comment-toggle.is-open{color:var(--fg-subtle)}.reader-feedback-form{width:100%;max-width:520px;display:flex;flex-direction:column;gap:var(--s-2);text-align:left;margin-top:var(--s-2)}.reader-feedback-input,.reader-feedback-textarea{width:100%;padding:var(--s-3);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--r-md);color:var(--fg);font-family:inherit;font-size:13px;line-height:1.55;transition:border-color var(--motion-fast),box-shadow var(--motion-fast)}.reader-feedback-textarea{resize:vertical;min-height:72px}.reader-feedback-input::placeholder,.reader-feedback-textarea::placeholder{color:var(--fg-subtle)}.reader-feedback-input:focus,.reader-feedback-textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 14%,transparent)}.reader-feedback-input:disabled,.reader-feedback-textarea:disabled{opacity:.6;cursor:not-allowed}.reader-feedback-form-row{display:flex;gap:var(--s-2);align-items:stretch}.reader-feedback-form-row .reader-feedback-input{flex:1 1;min-width:0}.reader-feedback-form-meta{display:flex;justify-content:space-between;align-items:center;gap:var(--s-2);min-height:1.1em}.reader-feedback-status{font-size:11px;color:var(--fg-muted)}.reader-feedback-status-error{color:var(--error)}.reader-feedback-status-sent{color:var(--success)}.reader-feedback-charcount{font-size:11px;color:var(--fg-subtle);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.reader-feedback-charcount.is-low{color:var(--warning)}.reader-feedback-submit{padding:0 var(--s-5);background:var(--accent);color:var(--accent-fg);border:none;border-radius:var(--r-md);font-weight:600;font-size:12px;cursor:pointer;white-space:nowrap;transition:background var(--motion-fast)}.reader-feedback-submit:hover:not(:disabled){background:var(--accent-hover)}.reader-feedback-submit:disabled{background:var(--bg-elevated);color:var(--fg-subtle);border:1px solid var(--border);cursor:not-allowed}.reader-feedback-next{display:inline-flex;align-items:baseline;gap:var(--s-3);padding-top:var(--s-4);margin-top:var(--s-2);border-top:1px solid var(--hairline);text-decoration:none;color:var(--fg-muted);font-size:13px;transition:color var(--motion-fast)}.reader-feedback-next:hover{color:var(--accent)}.reader-feedback-next-label{font-size:11px;text-transform:uppercase;letter-spacing:var(--tracking-wide);color:var(--fg-subtle);font-weight:600}.reader-feedback-next-title{color:var(--fg);font-weight:500;letter-spacing:var(--tracking-tight)}.reader-feedback-next:hover .reader-feedback-next-title{color:var(--accent)}.reader-feedback-next-arrow{color:var(--fg-subtle);transition:transform var(--motion-fast),color var(--motion-fast)}.reader-feedback-next:hover .reader-feedback-next-arrow{color:var(--accent);transform:translateX(2px)}.reader-mode-toggle-group{position:absolute;top:var(--s-4);right:0;display:inline-flex;gap:6px;align-items:center}.reader-mode-toggle-group .reader-mode-toggle{position:static;top:auto;right:auto}.cinema-shell{position:fixed;inset:0;background:var(--bg-canvas);z-index:90;display:flex;flex-direction:column}.cinema-toolbar{position:absolute;top:16px;right:16px;z-index:2}.cinema-scroller{flex:1 1;overflow-y:auto;scroll-snap-type:y mandatory}.cinema-section{position:relative;height:100vh;scroll-snap-align:start;overflow:hidden;display:flex;align-items:flex-end}.cinema-section-intro{align-items:center;justify-content:center}.cinema-section-bg{position:absolute;inset:0;z-index:0;background:var(--bg-sunken)}.cinema-section-bg-empty{background:radial-gradient(circle at 30% 40%,rgba(96,165,250,.08),transparent 60%),var(--bg-sunken)}.cinema-section-bg-img{width:100%;height:100%;object-fit:cover;filter:blur(12px) saturate(.85);opacity:.6;transform:scale(1.05)}.cinema-section-bg-veil{position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,10,14,.85) 0,rgba(8,10,14,.35) 60%,rgba(8,10,14,.05))}.cinema-section-content{position:relative;z-index:1;padding:72px 96px;max-width:980px;display:flex;flex-direction:column;gap:24px}.cinema-section-content-center{text-align:center;align-items:center}.cinema-step-num{font-family:var(--font-mono);font-size:96px;font-weight:700;line-height:1;color:var(--accent);opacity:.65;letter-spacing:-.05em}.cinema-step-body{display:flex;flex-direction:column;gap:14px;max-width:64ch}.cinema-title{font-size:64px;font-weight:600;line-height:1.05;letter-spacing:-.025em;color:var(--fg);margin:0}.cinema-description{font-size:22px;line-height:1.5;color:var(--fg-muted);max-width:60ch;margin:0}.cinema-heading{font-size:42px;font-weight:600;line-height:1.15;letter-spacing:-.015em;color:var(--fg);margin:0}.cinema-prose{font-size:19px;line-height:1.55;color:var(--fg);margin:0}.cinema-hint{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--fg-subtle);margin-top:24px}.cinema-pip{position:fixed;right:24px;bottom:24px;width:360px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--r-md,6px);box-shadow:0 16px 36px rgba(0,0,0,.5);overflow:hidden;z-index:3;transition:width .24s ease,opacity .24s ease}.cinema-pip.is-intro{width:240px}.cinema-pip-video{width:100%;display:block}.cinema-pip-dismiss{position:absolute;top:4px;right:4px;width:24px;height:24px;background:rgba(0,0,0,.6);border:0;border-radius:50%;color:#fff;font-size:14px;line-height:1;cursor:pointer}@media (max-width:720px){.cinema-section-content{padding:32px 24px}.cinema-step-num{font-size:56px}.cinema-title{font-size:40px}.cinema-heading{font-size:28px}.cinema-description,.cinema-prose{font-size:16px}.cinema-pip{right:12px;bottom:12px;width:200px}.cinema-pip.is-intro{width:140px}}