:root{--bg:#f8f7f9;--bg-alt:#f0eff2;--text:#1a1e24;--subtle-text:#555;--accent:#8e44ad;--accent-secondary:#3fa8e0;--accent-gradient:linear-gradient(135deg,#8e44ad,#3fa8e0);--card-bg:#fff;--shadow:0 8px 30px #00000014;--shadow-lg:0 20px 60px #0000001f}@media (prefers-color-scheme:dark){:root{--bg:#1a1e24;--bg-alt:#14171c;--text:#f5f0f6;--subtle-text:#aaa;--card-bg:#242832;--shadow:0 6px 20px #0006;--shadow-lg:0 20px 60px #00000080}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,SF Pro Display,SF Pro Text,sans-serif;line-height:1.6;overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.hero{background:var(--bg);align-items:center;min-height:100vh;padding:2rem 0;display:flex}.hero .container{grid-template-columns:1fr 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0}.screenshot-gallery{flex-direction:column;align-items:center;gap:1.5rem}.screenshot-gallery .iphone-frame{width:200px;height:420px}.cta{padding:4rem 1.5rem}.footer-nav{gap:1.5rem}}@media (max-width:480px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.section-title{font-size:1.5rem}}.privacy-header{text-align:center;padding:5rem 1rem 2rem}.privacy-header .back-link{color:var(--subtle-text);margin-bottom:1rem;font-size:.95rem;text-decoration:none;transition:color .2s;display:inline-block}.privacy-header .back-link:hover{color:var(--text)}.privacy-header h1{margin:0 0 .5rem;font-size:2.5rem}.last-updated{color:var(--subtle-text);font-size:.95rem}.privacy-content{padding:3rem 1rem 4rem;line-height:1.7}.privacy-section{max-width:800px;margin-bottom:2.5rem;margin-left:auto;margin-right:auto}.privacy-section h2{margin-bottom:.75rem;font-size:1.5rem}.privacy-section p,.privacy-section li{color:var(--subtle-text)}.privacy-section 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.synopsis-content.collapsed{max-height:120px;position:relative;overflow:hidden}.book-synopsis .synopsis-content.collapsed:after{content:"";background:linear-gradient(to bottom,transparent,var(--bg));pointer-events:none;height:60px;position:absolute;bottom:0;left:0;right:0}.book-synopsis .synopsis-content.expanded{max-height:none}.book-synopsis .synopsis-content.expanded:after{display:none}.synopsis-content p{margin:0 0 1rem}.synopsis-content p:last-child{margin-bottom:0}.synopsis-content b,.synopsis-content strong{color:var(--text);font-weight:600}.synopsis-content i,.synopsis-content em{font-style:italic}.synopsis-toggle{color:var(--accent);cursor:pointer;background:0 0;border:none;margin-top:.5rem;padding:.5rem 0;font-size:.95rem;font-weight:500;transition:opacity .2s}.synopsis-toggle:hover{opacity:.8}.amazon-button{color:#fff;background:#232f3e;border-radius:8px;margin-bottom:2.5rem;padding:.75rem 1.5rem;font-size:.95rem;font-weight:500;text-decoration:none;transition:background .2s;display:inline-block}.amazon-button:hover{background:#37475a}.book-cta{background:var(--card-bg);box-shadow:var(--shadow);text-align:center;border-radius:20px;max-width:600px;padding:2.5rem}.book-cta h2{margin:0 0 .75rem;font-size:1.5rem}.book-cta p{color:var(--subtle-text);margin:0 0 1.5rem}.book-cta .cta-button{background:var(--accent-gradient);color:#fff;border-radius:12px;padding:1rem 2rem;font-size:1.1rem;font-weight:600;text-decoration:none;transition:transform .2s,box-shadow .2s;display:inline-block}.book-cta .cta-button:hover{transform:scale(1.05);box-shadow:0 8px 24px #8e44ad4d}.book-not-found{text-align:center;padding:4rem 0}.book-not-found h1{margin:0 0 1rem;font-size:2rem}.book-not-found p{color:var(--subtle-text);margin:0 0 2rem}.book-not-found .back-home{background:var(--accent-gradient);color:#fff;border-radius:8px;padding:.75rem 1.5rem;font-weight:500;text-decoration:none;transition:transform .2s;display:inline-block}.book-not-found .back-home:hover{transform:scale(1.05)}@media (max-width:768px){.book-nav{padding:.75rem 0}.book-nav .app-store-button img{height:32px}.book-content{padding:2rem 0}.book-header{text-align:center;grid-template-columns:1fr;gap:1.5rem;margin-bottom:2rem}.book-cover{width:140px;margin:0 auto}.book-title{font-size:1.5rem}.book-authors{margin-bottom:1rem;font-size:1rem}.book-meta{justify-content:center;gap:.25rem 1rem}.meta-item{font-size:.85rem}.meta-item:not(:last-child):after{margin-left:1rem}.book-isbn{font-size:.8rem}.book-synopsis{text-align:left;margin-bottom:2rem}.book-synopsis h2{font-size:1.1rem}.synopsis-content{font-size:.95rem;line-height:1.7}.book-cta{border-radius:16px;padding:1.75rem 1.25rem}.book-cta h2{font-size:1.2rem}.book-cta p{font-size:.9rem}.book-cta .cta-button{padding:.875rem 1.75rem;font-size:1rem}}@media (max-width:480px){.book-cover{width:120px}.book-title{font-size:1.35rem}.book-meta{flex-direction:column;gap:.25rem}.meta-item:not(:last-child):after{display:none}}