@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-dark:#0f1115;--bg-sidebar:#16181d;--bg-panel:#1e2128;--text-main:#f3f4f6;--text-muted:#9ca3af;--accent:#3b82f6;--accent-hover:#2563eb;--success:#10b981;--success-hover:#059669;--border-color:#ffffff14;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-main);font-family:Inter,sans-serif;overflow:hidden}.app-container{width:100vw;height:100vh;display:flex}.sidebar{background-color:var(--bg-sidebar);border-right:1px solid var(--border-color);width:280px;box-shadow:var(--shadow-sm);z-index:10;flex-direction:column;display:flex}.logo-container{border-bottom:1px solid var(--border-color);align-items:center;gap:12px;height:64px;padding:0 24px;display:flex}.logo-icon{color:var(--accent)}.logo-text{letter-spacing:-.025em;background:linear-gradient(90deg,#60a5fa,#a78bfa);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.25rem;font-weight:700}.tools-section{flex-direction:column;gap:12px;padding:24px;display:flex}.tools-section h3{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:8px;font-size:.75rem;font-weight:600}.divider{background-color:var(--border-color);height:1px;margin:8px 0}.tool-btn{border:1px solid var(--border-color);background-color:var(--bg-panel);width:100%;color:var(--text-main);cursor:pointer;border-radius:8px;align-items:center;gap:10px;padding:12px 16px;font-family:inherit;font-size:.875rem;font-weight:500;transition:all .2s;display:flex}.tool-btn:hover:not(:disabled){background-color:#ffffff0d;transform:translateY(-1px)}.tool-btn:active:not(:disabled){transform:translateY(0)}.tool-btn:disabled{opacity:.5;cursor:not-allowed;filter:grayscale()}.tool-btn.primary{background-color:var(--accent);border-color:var(--accent);color:#fff}.tool-btn.primary:hover:not(:disabled){background-color:var(--accent-hover);box-shadow:0 4px 12px #3b82f64d}.tool-btn.success{background-color:var(--success);border-color:var(--success);color:#fff}.tool-btn.success:hover:not(:disabled){background-color:var(--success-hover);box-shadow:0 4px 12px #10b9814d}.tool-btn.active-tool{border-color:var(--accent);color:var(--accent);background-color:#3b82f633}.btn-large{background-color:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;margin-top:16px;padding:12px 32px;font-family:inherit;font-size:1rem;font-weight:500;transition:all .2s}.btn-large:hover{background-color:var(--accent-hover);transform:translateY(-2px);box-shadow:0 4px 12px #3b82f666}.main-content{background-color:var(--bg-dark);flex-direction:column;flex:1;display:flex}.top-bar{background-color:var(--bg-sidebar);border-bottom:1px solid var(--border-color);justify-content:center;align-items:center;height:64px;padding:0 24px;display:flex}.file-info{background-color:var(--bg-panel);border:1px solid var(--border-color);white-space:nowrap;text-overflow:ellipsis;border-radius:20px;max-width:400px;padding:6px 16px;font-size:.875rem;overflow:hidden}.file-name.placeholder{color:var(--text-muted);font-style:italic}.pdf-viewer-container{flex:1;padding:24px;display:flex;position:relative}.empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;max-width:400px;height:100%;margin:auto;animation:.5s ease-out fadeIn;display:flex}.empty-state-icon-bg{background-color:#3b82f61a;border-radius:50%;justify-content:center;align-items:center;width:96px;height:96px;margin-bottom:24px;display:flex}.empty-state-icon{color:var(--accent)}.empty-state h2{margin-bottom:12px;font-size:1.5rem;font-weight:600}.empty-state p{color:var(--text-muted);margin-bottom:16px;line-height:1.5}.loading-state{color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex}.spinner{color:var(--accent);animation:1s linear infinite spin}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}