:root{--ink:#2b201d;--muted:#786a64;--paper:#fbf6ed;--panel:#f2e7d7;--green:#5b241c;--green-2:#7a3325;--gold:#d59b43;--copper:#bd5a2e;--line:rgba(60,32,25,.17);--reader:1.06rem;--serif:Georgia,"Times New Roman",serif;--sans:Arial,sans-serif;color-scheme:light}
:root[data-theme=dark]{--ink:#f5eee8;--muted:#d2c0b7;--paper:#241713;--panel:#38221b;--green:#efbc62;--green-2:#f2cc85;--gold:#f0c86d;--copper:#f18a51;--line:rgba(255,255,255,.16);color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:76px;overflow-x:hidden}body{margin:0;overflow-x:hidden;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.7}a{color:inherit}.skip{position:fixed;top:8px;left:8px;z-index:1000;padding:10px 16px;background:#fff;color:#111;transform:translateY(-150%)}.skip:focus{transform:none}
.topbar{position:fixed;z-index:80;inset:0 0 auto 0;height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;background:color-mix(in srgb,var(--paper) 93%,transparent);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.brand{display:flex;flex-direction:column;text-align:center;text-decoration:none;line-height:1.2}.brand span,.eyebrow,.section-kicker{color:var(--copper);font-size:.68rem;font-weight:700;letter-spacing:.2em}.brand strong{font-family:var(--serif);letter-spacing:.08em}.toolbar{display:flex;gap:7px}.round{width:38px;height:38px;border:1px solid var(--line);border-radius:50%;background:transparent;color:var(--ink);cursor:pointer}.menu{display:none}
.sidebar{position:fixed;z-index:60;top:72px;bottom:0;left:0;width:300px;padding:24px 20px 80px;overflow:auto;background:var(--panel);border-right:1px solid var(--line)}.sidebar label,.downloads>span{display:block;margin:18px 0 7px;color:var(--muted);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.sidebar input{width:100%;padding:12px;border:1px solid var(--line);background:var(--paper);color:var(--ink)}.search-status{min-height:1.2em;margin:6px 0;font-size:.75rem}.sidebar ol{margin:24px 0;padding:0;list-style:none}.sidebar li{margin:0}.sidebar a{display:block;padding:8px 9px;text-decoration:none;border-left:2px solid transparent;font-size:.82rem}.sidebar a:hover,.sidebar a.active{color:var(--copper);border-color:var(--copper)}.nav-divider a{margin-top:15px;font-weight:700}.downloads a{margin:3px 0;padding:8px 10px;background:var(--green);color:#fff}.progress-card{margin:18px 0;padding:15px;background:var(--paper);border:1px solid var(--line)}.progress-card>span{font-size:.73rem}.progress-card strong{float:right}.bar{clear:both;height:5px;margin-top:12px;background:var(--line)}.bar i{display:block;height:100%;width:0;background:var(--gold);transition:.2s}
.main{min-width:0;margin-left:300px}.hero{min-width:0;min-height:100vh;display:flex;overflow:hidden;flex-direction:column;justify-content:center;padding:110px clamp(32px,8vw,130px);background:radial-gradient(circle at 76% 28%,rgba(189,90,46,.18),transparent 28%),linear-gradient(135deg,var(--paper),var(--panel))}.hero h1{max-width:100%;margin:14px 0 10px;font:clamp(4rem,8.3vw,7.5rem)/.86 var(--serif);letter-spacing:-.05em}.hero h1 em{color:var(--copper);font-weight:400}.subtitle{max-width:700px;overflow-wrap:anywhere;font:italic clamp(1.25rem,2.4vw,2rem)/1.35 var(--serif)}.hero blockquote{max-width:760px;margin:32px 0;padding-left:22px;overflow-wrap:anywhere;border-left:2px solid var(--gold);font:italic 1.1rem/1.6 var(--serif)}.primary,.secondary{display:inline-flex;width:max-content;max-width:100%;align-items:center;justify-content:center;padding:13px 20px;border:0;background:var(--green);color:#fff;text-decoration:none;font-weight:700;cursor:pointer}.architecture{display:flex;max-width:100%;align-items:center;gap:14px;flex-wrap:wrap;margin:26px 0 0}.architecture span{min-width:0;padding:11px 14px;border:1px solid var(--line);font-family:var(--serif)}.architecture small{display:block;color:var(--muted);font:normal .67rem var(--sans)}.architecture i{color:var(--gold)}
.part-divider{min-height:62vh;display:flex;flex-direction:column;justify-content:center;padding:90px clamp(32px,10vw,150px);background:var(--green);color:#fff}.part-divider p{color:#efd194;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase}.part-divider h2{max-width:900px;margin:10px 0 18px;font:clamp(2.6rem,6vw,5.6rem)/.95 var(--serif)}.part-divider span{font:italic 1.1rem var(--serif)}
.book-section{max-width:980px;margin:0 auto;padding:100px clamp(28px,7vw,95px);font-size:var(--reader)}.book-section h1{font:clamp(2.6rem,5vw,4.5rem)/1.02 var(--serif);color:var(--green)}.book-section h2{margin-top:2.1em;color:var(--green);font:2rem/1.15 var(--serif)}.book-section h3{margin-top:1.7em;color:var(--copper);font:1.35rem var(--serif)}.book-section p{text-align:justify}.book-section blockquote{margin:28px 0;padding:18px 24px;background:var(--panel);border-left:4px solid var(--gold);font:italic 1.1em/1.65 var(--serif)}.book-section li{margin:.45em 0}.book-section hr{margin:50px 0;border:0;border-top:1px solid var(--line)}.chapter{border-bottom:1px solid var(--line)}.chapter-actions{display:flex;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);font-size:.78rem}.favorite{border:0;background:none;color:var(--copper);cursor:pointer}.notes{margin-top:60px;padding:24px;background:var(--panel)}.notes label{display:block;font-weight:700}.notes textarea{width:100%;margin-top:10px;padding:13px;resize:vertical;background:var(--paper);color:var(--ink);border:1px solid var(--line);font:inherit}.saved{display:block;min-height:1.2em;color:var(--muted);font-size:.75rem}.page-nav{display:flex;justify-content:space-between;gap:20px;margin-top:45px;padding-top:20px;border-top:1px solid var(--line)}.page-nav a{color:var(--copper);font-size:.82rem;font-weight:700}.table-scroll{overflow-x:auto}.book-section table{width:100%;border-collapse:collapse;font-size:.9em}.book-section th,.book-section td{padding:12px;text-align:left;vertical-align:top;border:1px solid var(--line)}.book-section th{background:var(--panel)}
.floating-actions{position:fixed;z-index:50;right:20px;bottom:88px}.secondary{background:var(--copper)}body.reader .sidebar,body.reader .topbar,body.reader .floating-actions{display:none}body.reader .main{margin-left:0}body.reader .book-section{max-width:800px}
[hidden]{display:none!important}
@media(max-width:900px){.menu{display:block}.brand strong{font-size:.8rem}.sidebar{transform:translateX(-105%);transition:.2s}.sidebar.open{transform:none;box-shadow:12px 0 40px rgba(0,0,0,.2)}.main{width:100%;margin-left:0}.hero{width:100%;padding-inline:16px}.hero h1{font-size:clamp(3.25rem,18vw,4.4rem)}.architecture{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);width:100%;gap:10px}.architecture i{display:none}.architecture span{width:100%}.book-section{width:100%;padding:78px 18px}.book-section p{text-align:left}.toolbar .reader-mode{display:none}.floating-actions{right:12px;bottom:84px}.secondary{padding:11px 13px;font-size:.75rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.sidebar{transition:none}}