*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0a0a14;--bg2: #0f0f1a;--card: #1a1a2e;--card-hover: #22223a;--border: rgba(255, 255, 255, .06);--accent1: #e94560;--accent2: #ff6b6b;--accent3: #ffd93d;--accent4: #00b4d8;--accent5: #06d6a0;--text: #eaeaea;--text2: #9a9ab8;--text3: #6a6a80;--radius: 16px;--radius-sm: 10px;--shadow: 0 8px 32px rgba(0, 0, 0, .4);--glass: rgba(26, 26, 46, .7);--glass-border: rgba(255, 255, 255, .08);--transition: .3s cubic-bezier(.4, 0, .2, 1)}html,body{height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overflow-x:hidden}h1,h2,h3,h4{font-family:Outfit,sans-serif}a{color:inherit;text-decoration:none}#app{min-height:100vh}.navbar{position:fixed;top:0;left:0;right:0;z-index:100;padding:0 2rem;height:64px;display:flex;align-items:center;justify-content:space-between;background:var(--glass);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid var(--glass-border)}.navbar-brand{display:flex;align-items:center;gap:.75rem;font-family:Outfit,sans-serif;font-weight:700;font-size:1.25rem;cursor:pointer}.navbar-brand .logo-icon{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--accent1),var(--accent4));display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800}.navbar-badge{font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;padding:3px 8px;border-radius:6px;background:#e9456026;color:var(--accent1);border:1px solid rgba(233,69,96,.25)}.hero{padding:120px 2rem 60px;text-align:center;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;left:50%;transform:translate(-50%);width:800px;height:800px;background:radial-gradient(circle,rgba(233,69,96,.08) 0%,transparent 60%);pointer-events:none}.hero:after{content:"";position:absolute;top:-30%;right:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(0,180,216,.06) 0%,transparent 60%);pointer-events:none}.hero h1{font-size:3rem;font-weight:800;line-height:1.15;margin-bottom:1rem;position:relative}.hero h1 span{background:linear-gradient(135deg,var(--accent1),var(--accent4));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:1.15rem;color:var(--text2);max-width:520px;margin:0 auto;line-height:1.6;position:relative}.ebook-grid{padding:2rem 2rem 4rem;max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.ebook-card{background:var(--card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;cursor:pointer;transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);position:relative}.ebook-card:hover{transform:translateY(-6px);box-shadow:var(--shadow),0 0 40px #e9456014;border-color:#e9456033}.ebook-card-cover{width:100%;aspect-ratio:16 / 10;overflow:hidden;position:relative;background:var(--bg2)}.ebook-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}.ebook-card:hover .ebook-card-cover img{transform:scale(1.05)}.ebook-card-cover .version-badge{position:absolute;top:12px;right:12px;font-size:.7rem;font-weight:600;padding:4px 10px;border-radius:20px;background:#06d6a033;color:var(--accent5);border:1px solid rgba(6,214,160,.3);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.ebook-card-body{padding:1.25rem 1.5rem 1.5rem}.ebook-card-body h3{font-size:1.2rem;font-weight:700;margin-bottom:.3rem;line-height:1.3}.ebook-card-body .subtitle{font-size:.85rem;color:var(--accent4);font-weight:500;margin-bottom:.75rem}.ebook-card-body .description{font-size:.85rem;color:var(--text2);line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.ebook-card-footer{padding:.75rem 1.5rem 1.25rem;display:flex;align-items:center;justify-content:space-between}.ebook-card-footer .author{font-size:.8rem;color:var(--text3)}.ebook-card-footer .read-btn{font-size:.8rem;font-weight:600;padding:6px 16px;border-radius:8px;background:linear-gradient(135deg,var(--accent1),#c0392b);color:#fff;border:none;cursor:pointer;transition:opacity var(--transition),transform var(--transition)}.ebook-card-footer .read-btn:hover{opacity:.9;transform:scale(1.03)}.viewer{height:100vh;display:flex;flex-direction:column}.viewer-topbar{height:56px;min-height:56px;display:flex;align-items:center;gap:1rem;padding:0 1.5rem;background:var(--glass);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid var(--glass-border);z-index:10}.viewer-back{display:flex;align-items:center;gap:6px;font-size:.85rem;font-weight:500;color:var(--text2);cursor:pointer;transition:color var(--transition);background:none;border:none;font-family:inherit}.viewer-back:hover{color:var(--text)}.viewer-back svg{width:18px;height:18px}.viewer-title{flex:1;font-family:Outfit,sans-serif;font-size:1rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.viewer-version-select{font-family:Inter,sans-serif;font-size:.8rem;font-weight:500;padding:5px 28px 5px 12px;border-radius:8px;background:var(--card);color:var(--text);border:1px solid var(--glass-border);cursor:pointer;outline:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%239a9ab8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}.viewer-version-select option{background:var(--card);color:var(--text)}.viewer-iframe-container{flex:1;position:relative;background:#fff}.viewer-iframe-container iframe{width:100%;height:100%;border:none}.loading{display:flex;align-items:center;justify-content:center;min-height:400px;color:var(--text2)}.loading-spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent1);border-radius:50%;animation:spin .8s linear infinite;margin-right:1rem}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text2)}.empty-state svg{width:64px;height:64px;margin-bottom:1.5rem;opacity:.3}.empty-state h3{font-size:1.25rem;margin-bottom:.5rem;color:var(--text3)}@media(max-width:768px){.hero{padding:100px 1.25rem 40px}.hero h1{font-size:2rem}.hero p{font-size:1rem}.ebook-grid{padding:1.25rem;grid-template-columns:1fr;gap:1.25rem}.navbar{padding:0 1.25rem}.viewer-topbar{padding:0 1rem}.viewer-title{font-size:.9rem}}.fade-in{animation:fadeIn .5s ease forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.ebook-card{opacity:0;animation:fadeIn .5s ease forwards}.ebook-card:nth-child(1){animation-delay:.05s}.ebook-card:nth-child(2){animation-delay:.1s}.ebook-card:nth-child(3){animation-delay:.15s}.ebook-card:nth-child(4){animation-delay:.2s}.ebook-card:nth-child(5){animation-delay:.25s}.ebook-card:nth-child(6){animation-delay:.3s}