:root,[data-theme=light]{--bg: #f4f7f5;--bg-elevated: #ffffff;--bg-soft: #e8efea;--text: #14201a;--text-muted: #5a6b62;--border: rgba(20, 32, 26, .1);--shadow: 0 12px 40px rgba(20, 32, 26, .08);--accent: #1f6f5b;--accent-soft: rgba(31, 111, 91, .12);--danger: #b42318;--radius: 20px;--font: "DM Sans", system-ui, sans-serif;--mono: "IBM Plex Mono", ui-monospace, monospace;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}[data-theme=dark]{--bg: #0f1419;--bg-elevated: #171e25;--bg-soft: #1d262f;--text: #e8f0eb;--text-muted: #93a39a;--border: rgba(232, 240, 235, .1);--shadow: 0 16px 48px rgba(0, 0, 0, .35);--accent: #5dceb0;--accent-soft: rgba(93, 206, 176, .14);--danger: #f97066}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);background:radial-gradient(1200px 600px at 10% -10%,var(--accent-soft),transparent 55%),radial-gradient(900px 500px at 100% 0%,rgba(47,108,168,.08),transparent 50%),var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,a{font:inherit}.page{min-height:100%}.page--topics{max-width:560px;margin:0 auto;padding:calc(20px + var(--safe-top)) 20px calc(40px + var(--safe-bottom))}.topics-header__row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.eyebrow{margin:0 0 6px;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}.topics-header h1{margin:0;font-size:clamp(2rem,6vw,2.6rem);letter-spacing:-.03em;line-height:1.1}.lede{margin:14px 0 0;color:var(--text-muted);line-height:1.5;max-width:36ch}.topics-main{margin-top:28px}.topic-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}.topic-card{display:grid;grid-template-columns:6px 1fr;overflow:hidden;border-radius:var(--radius);background:var(--bg-elevated);border:1px solid var(--border);box-shadow:var(--shadow);text-decoration:none;color:inherit;transition:transform .16s ease,border-color .16s ease}.topic-card:hover,.topic-card:focus-visible{transform:translateY(-2px);border-color:color-mix(in srgb,var(--topic-accent, var(--accent)) 45%,var(--border));outline:none}.topic-card__accent{background:linear-gradient(180deg,var(--topic-accent, var(--accent)),color-mix(in srgb,var(--topic-accent, var(--accent)) 40%,transparent))}.topic-card__body{padding:18px 18px 16px}.topic-card__subtitle{margin:0 0 4px;font-size:.78rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--topic-accent, var(--accent))}.topic-card h2{margin:0;font-size:1.25rem;letter-spacing:-.02em}.topic-card__desc{margin:8px 0 0;color:var(--text-muted);font-size:.95rem;line-height:1.45}.topic-card__cta{display:inline-flex;margin-top:14px;font-size:.9rem;font-weight:600;color:var(--topic-accent, 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var(--border);color:var(--text);text-decoration:none;font-size:.9rem;font-weight:600;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.progress-rail{position:absolute;top:calc(64px + var(--safe-top));right:10px;z-index:15;display:flex;flex-direction:column;gap:5px;width:3px;height:min(40vh,220px)}.progress-rail__seg{flex:1;border-radius:999px;background:color-mix(in srgb,var(--text) 14%,transparent);transition:background .18s ease,flex .18s ease}.progress-rail__seg.is-done{background:color-mix(in srgb,var(--topic-accent, var(--accent)) 55%,transparent)}.progress-rail__seg.is-active{flex:1.6;background:var(--topic-accent, var(--accent))}.reel-scroller{height:100%;overflow-y:auto;scroll-snap-type:y mandatory;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;outline:none}.post-slide{height:100%;scroll-snap-align:start;scroll-snap-stop:always;display:flex;flex-direction:column;padding:calc(72px + var(--safe-top)) 28px calc(28px + var(--safe-bottom)) 20px;position:relative}.post-slide__chrome{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:18px}.post-slide__topic{display:block;font-size:.75rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--topic-accent, var(--accent));margin-bottom:4px}.post-slide__title{margin:0;font-size:1.35rem;letter-spacing:-.02em;line-height:1.2}.post-slide__count{font-family:var(--mono);font-size:.78rem;color:var(--text-muted);padding-top:2px}.post-slide__body{flex:1;min-height:0;overflow-y:auto;padding-right:8px}.post-slide__status{color:var(--text-muted)}.post-slide__status--error{color:var(--danger)}.post-slide__hint{margin-top:12px;text-align:center;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:color-mix(in srgb,var(--text-muted) 70%,transparent)}.post-content{font-size:1.05rem;line-height:1.55;color:var(--text)}.post-content h3{margin:0 0 12px;font-size:1.15rem;letter-spacing:-.02em}.post-content p{margin:0 0 12px}.post-content ul,.post-content ol{margin:0 0 14px;padding-left:1.2rem}.post-content li{margin-bottom:6px}.post-content li::marker{color:var(--topic-accent, var(--accent))}.post-content .callout{margin:14px 0;padding:12px 14px;border-radius:14px;background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--topic-accent, var(--accent)) 28%,transparent)}.post-content .callout strong{color:var(--topic-accent, var(--accent))}.post-content .kicker{display:inline-block;margin-bottom:8px;font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--topic-accent, var(--accent))}.post-content code,.post-content .mono{font-family:var(--mono);font-size:.9em}.post-content pre{margin:12px 0;padding:12px 14px;overflow-x:auto;border-radius:14px;background:var(--bg-soft);border:1px solid var(--border);font-family:var(--mono);font-size:.85rem;line-height:1.45}.post-content .stack{display:flex;flex-direction:column;gap:10px}.post-content 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