.book-talk[data-astro-cid-re7jrbzc]{margin:1.6rem 0 0;padding-top:1rem;border-top:1px solid var(--line);font-size:.86rem;color:var(--ink-2)}.book-talk[data-astro-cid-re7jrbzc] a[data-astro-cid-re7jrbzc]{color:var(--ink);text-decoration:underline;text-underline-offset:3px}.book[data-astro-cid-re7jrbzc]{padding:clamp(1.4rem,4vw,2.6rem) 0 0}.prog[data-astro-cid-re7jrbzc]{margin-bottom:clamp(1.6rem,4vw,2.4rem)}.prog-now[data-astro-cid-re7jrbzc]{display:flex;align-items:baseline;gap:.6rem;margin:0 0 .6rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}.prog-count[data-astro-cid-re7jrbzc]{color:var(--flux)}.prog-name[data-astro-cid-re7jrbzc]{color:var(--ink-3)}.prog-name[data-astro-cid-re7jrbzc]:before{content:"·";margin-right:.6rem}.prog-list[data-astro-cid-re7jrbzc]{display:grid;grid-template-columns:repeat(5,1fr);gap:.35rem;list-style:none;margin:0;padding:0}.prog-seg[data-astro-cid-re7jrbzc]{display:block;color:inherit}.prog-bar[data-astro-cid-re7jrbzc]{display:block;height:4px;border-radius:4px;background:var(--line);transition:background .3s}.prog-label[data-astro-cid-re7jrbzc]{display:none;margin-top:.45rem;font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}@media(min-width:560px){.prog-label[data-astro-cid-re7jrbzc]{display:block}.prog-name[data-astro-cid-re7jrbzc]{display:none}}.prog-step[data-astro-cid-re7jrbzc].is-done .prog-bar[data-astro-cid-re7jrbzc]{background:var(--pass)}.prog-step[data-astro-cid-re7jrbzc].is-done .prog-label[data-astro-cid-re7jrbzc]{color:var(--ink-2)}.prog-step[data-astro-cid-re7jrbzc].is-current .prog-bar[data-astro-cid-re7jrbzc]{background:var(--flux);box-shadow:0 0 12px var(--flux-glow)}.prog-step[data-astro-cid-re7jrbzc].is-current .prog-label[data-astro-cid-re7jrbzc]{color:var(--ink)}a[data-astro-cid-re7jrbzc].prog-seg:hover .prog-label[data-astro-cid-re7jrbzc]{color:var(--ink);text-decoration:underline;text-underline-offset:3px}.book-head[data-astro-cid-re7jrbzc]{max-width:50ch;margin-bottom:clamp(1.4rem,3vw,2rem)}.book-title[data-astro-cid-re7jrbzc]{font-family:var(--display);font-weight:700;letter-spacing:-.03em;line-height:1.05;font-size:clamp(1.75rem,5vw,2.7rem);margin:0}.book-intro[data-astro-cid-re7jrbzc]{color:var(--ink-2);line-height:1.6;margin:.7rem 0 0;font-size:.98rem}.book-ctx{display:inline-flex;align-items:center;gap:.55rem;flex-wrap:wrap;margin:0 0 1.2rem;padding:.42rem .5rem .42rem .8rem;background:var(--surface);border:1px solid var(--line);border-radius:100px;font-size:.86rem;color:var(--ink)}.book-ctx[hidden]{display:none}.book-ctx-k{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}.book-ctx a{font-size:.76rem;font-weight:600;color:var(--flux);padding:.2rem .6rem;border:1px solid color-mix(in srgb,var(--flux) 45%,transparent);border-radius:100px}.book-ctx a:hover{background:var(--flux-glow)}.book-sec-h{font-family:var(--display);font-weight:700;font-size:1.12rem;letter-spacing:-.025em;margin:0 0 .9rem}.book-sec-h small{display:block;font-family:var(--body);font-weight:400;font-size:.84rem;color:var(--ink-3);letter-spacing:0;margin-top:.2rem}.actbar[data-astro-cid-re7jrbzc]{position:sticky;bottom:0;z-index:40;margin:2rem calc(var(--gutter) * -1) 0;padding:.8rem 0 max(.8rem,env(safe-area-inset-bottom));background:#0a0c0de0;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--line)}.actbar-in[data-astro-cid-re7jrbzc]{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}.actbar-sum[data-astro-cid-re7jrbzc]{display:flex;align-items:baseline;gap:.7rem;min-width:0;flex:1 1 14rem}.actbar-state[data-astro-cid-re7jrbzc]{margin:0;font-size:.9rem;color:var(--ink-3);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color .3s}.actbar-state[data-astro-cid-re7jrbzc].is-set{color:var(--ink)}.actbar-price[data-astro-cid-re7jrbzc]{margin:0;flex:none;font-family:var(--display);font-weight:700;font-size:1.05rem;letter-spacing:-.02em;color:var(--flux)}.actbar-price[data-astro-cid-re7jrbzc][hidden]{display:none}.actbar-btns[data-astro-cid-re7jrbzc]{display:flex;align-items:center;gap:.6rem;margin-left:auto}.actbar-next[data-astro-cid-re7jrbzc][disabled]{opacity:.38;cursor:not-allowed;box-shadow:none;transform:none}.actbar-next[data-astro-cid-re7jrbzc][disabled]:hover{transform:none;box-shadow:none}@media(max-width:520px){.actbar-sum[data-astro-cid-re7jrbzc]{width:100%;flex:1 1 100%;justify-content:space-between}.actbar-btns[data-astro-cid-re7jrbzc]{width:100%}.actbar-next[data-astro-cid-re7jrbzc]{flex:1 1 auto;justify-content:center}}