:root{--color-bg: #0f0f0f;--color-bg-secondary: #1a1a1a;--color-bg-tertiary: #242424;--color-text: #e5e5e5;--color-text-muted: #888;--color-accent: #f47c20;--color-accent-hover: #ff9340;--color-border: #333;--color-success: #22c55e;--color-error: #ef4444;--radius: 8px;--font-mono: "SF Mono", Monaco, "Courier New", monospace}*{box-sizing:border-box;margin:0;padding:0}html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.6}body{min-height:100vh}a{color:var(--color-accent);text-decoration:none}a:hover{color:var(--color-accent-hover);text-decoration:underline}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.header{border-bottom:1px solid var(--color-border);padding:1rem 0;position:sticky;top:0;background:var(--color-bg);z-index:100}.header-content{display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;color:var(--color-text)}.logo:hover{text-decoration:none;color:var(--color-accent)}.logo-icon{font-size:1.75rem}.nav{display:flex;gap:2rem}.nav a{color:var(--color-text-muted);font-weight:500}.nav a:hover,.nav a.active{color:var(--color-accent);text-decoration:none}.hero{text-align:center;padding:4rem 0}.hero h1{font-size:3rem;margin-bottom:1rem;background:linear-gradient(135deg,var(--color-text),var(--color-accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:1.25rem;color:var(--color-text-muted);max-width:600px;margin:0 auto 2rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500}.input{width:100%;padding:.75rem 1rem;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);font-size:1rem}.input:focus{outline:none;border-color:var(--color-accent)}.input::placeholder{color:var(--color-text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;border:none;border-radius:var(--radius);cursor:pointer;transition:all .2s}.btn-primary{background:var(--color-accent);color:#000}.btn-primary:hover{background:var(--color-accent-hover)}.btn-secondary{background:var(--color-bg-tertiary);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-bg-secondary);border-color:var(--color-text-muted)}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.5rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.epub-card{display:flex;flex-direction:column;gap:.75rem}.epub-card h3{font-size:1.25rem;color:var(--color-text)}.epub-card .meta{font-size:.875rem;color:var(--color-text-muted);display:flex;flex-wrap:wrap;gap:1rem}.epub-card .meta span{display:flex;align-items:center;gap:.25rem}.epub-card .actions{margin-top:auto;padding-top:1rem;border-top:1px solid var(--color-border)}.generate-form{max-width:600px;margin:0 auto}.url-input-group{display:flex;gap:.5rem}.url-input-group .input{flex:1}.status{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .75rem;border-radius:999px;font-size:.875rem;font-weight:500}.status-pending{background:#2d2d00;color:#fbbf24}.status-processing{background:#002d2d;color:#22d3ee}.status-completed{background:#002d00;color:var(--color-success)}.status-failed{background:#2d0000;color:var(--color-error)}.progress{height:8px;background:var(--color-bg-tertiary);border-radius:999px;overflow:hidden}.progress-bar{height:100%;background:var(--color-accent);transition:width .3s}.search-bar{display:flex;gap:1rem;margin-bottom:2rem}.search-bar .input{flex:1}.footer{border-top:1px solid var(--color-border);padding:2rem 0;margin-top:4rem;text-align:center;color:var(--color-text-muted)}.spinner{width:20px;height:20px;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:4rem 2rem;color:var(--color-text-muted)}.empty-state h3{margin-bottom:.5rem;color:var(--color-text)}.section{padding:3rem 0}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem}.section-header h2{font-size:1.75rem}