:root{--ink:#173b35;--paper:#f5f1e8;--paper2:#fffdf8;--coral:#e8755d;--blue:#3576b8;--line:rgba(23,59,53,.14);--muted:#647d76}
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@media(prefers-reduced-motion:reduce){*{transition:none!important}}
.shelf-heading{padding:34px 0 24px;display:flex;align-items:flex-end;justify-content:space-between;gap:30px}.shelf-heading .eyebrow{margin-bottom:8px}.shelf-heading h1{margin:0;font-family:Georgia,"Noto Serif SC",serif;font-size:clamp(28px,3vw,42px);line-height:1.2}.shelf-heading>p{max-width:520px;margin:0 0 4px;color:#617871;font-size:14px;line-height:1.7;text-align:right}.shelf{position:relative;z-index:1}.book{min-height:620px}@media(max-width:800px){.shelf-heading{padding:26px 0 18px;display:block}.shelf-heading>p{margin-top:10px;text-align:left}.book{min-height:520px}}
.book{cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}.book:hover{transform:translateY(-3px);box-shadow:0 24px 65px rgba(26,56,49,.13)}.book:focus-visible{outline:3px solid var(--coral);outline-offset:4px}
.brain-book{background:linear-gradient(145deg,#356d86 0%,#284f67 100%);color:white;border-color:rgba(255,255,255,.12)}.brain-book::after{color:rgba(255,255,255,.045)}.brain-book .book-index{color:#bfe2f0}.brain-book>p{color:#d8e8ee}.brain-book .tags span{border-color:rgba(255,255,255,.25);color:#e4f0f4}.brain-book .progress-row small{color:#bad0da}.brain-book .progress-track{background:rgba(255,255,255,.18)}.brain-book .progress-track i{background:#f2bf62}.brain-book .book-button{background:white;color:#214457}
.opening-book{overflow:hidden}.shelf-loader{position:fixed;z-index:500;inset:0;display:grid;place-items:center;background:var(--paper)}.shelf-loader[hidden]{display:none}.shelf-loader-inner{text-align:center;transform:translateY(-3vh)}.shelf-loader strong{font:900 34px/1 Arial,sans-serif;letter-spacing:-1px}.shelf-loader strong span{color:var(--coral)}.shelf-loader p{margin:18px 0 12px;color:#6b857d;font-size:13px;letter-spacing:.12em;line-height:1.65}.shelf-loader p small{display:block;margin-top:4px;color:#8da099;font-size:11px;letter-spacing:.08em}.shelf-loader-track{width:170px;height:3px;border-radius:99px;background:rgba(23,59,53,.12);overflow:hidden}.shelf-loader-track i{display:block;width:42%;height:100%;border-radius:inherit;background:var(--coral);animation:shelf-loader-slide 2.2s ease-in-out infinite alternate}@keyframes shelf-loader-slide{from{transform:translateX(-10%)}to{transform:translateX(150%)}}