:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--bg-primary: #f0f2f5;--bg-secondary: #e4e6eb;--border-color: #ced4da;--text-main: #1c1e21;--text-sub: #65676b;--sidebar-bg: #18191a;--sidebar-text: #e4e6eb;--accent: #2d88ff;--hover: #3a3b3c;--card-bg: #ffffff;--shadow: 0 1px 2px rgba(0, 0, 0, .1);--danger: #fa3e3e}body,html,#root{margin:0;padding:0;height:100%;font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg-primary);color:var(--text-main)}.app-container{display:flex;height:100vh;width:100vw;overflow:hidden}.sidebar{width:280px;background-color:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;padding:16px 8px;box-shadow:2px 0 5px #0000000d}.logo{display:flex;align-items:center;padding:8px 16px;margin-bottom:24px;gap:12px}.logo-icon{background:linear-gradient(135deg,#2d88ff,#00c6ff);color:#fff;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:22px}.logo span{font-weight:700;font-size:20px;letter-spacing:-.5px}nav{display:flex;flex-direction:column;flex-grow:1}nav button{background:transparent;border:none;color:var(--sidebar-text);padding:12px 16px;margin:2px 0;text-align:left;display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600;cursor:pointer;border-radius:8px;transition:background-color .2s}nav button:hover{background-color:var(--hover)}nav button.active{background-color:#2d88ff1a;color:var(--accent)}.sidebar-footer{padding:12px 16px;font-size:13px;opacity:.6;display:flex;align-items:center;gap:8px}.content{flex-grow:1;display:flex;flex-direction:column;overflow-y:auto}header{padding:24px 40px;display:flex;justify-content:space-between;align-items:center;background:#fff;border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:10}header h1{font-size:24px;font-weight:700;margin:0}.refresh-btn{background-color:var(--bg-secondary);border:none;padding:8px 16px;border-radius:6px;font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px;cursor:pointer;transition:filter .2s}.refresh-btn:hover{filter:brightness(.95)}.main-section{padding:24px 40px}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.file-card{background-color:var(--card-bg);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s;border:1px solid var(--border-color)}.file-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.file-preview-area{height:160px;background-color:#f0f2f5;display:flex;align-items:center;justify-content:center;overflow:hidden;cursor:pointer;position:relative}.thumbnail{width:100%;height:100%;object-fit:cover}.file-type-icon{color:var(--text-sub);opacity:.5}.file-info-compact{padding:12px;display:flex;justify-content:space-between;align-items:flex-start;gap:8px}.file-details{flex-grow:1;min-width:0}.file-details h3{margin:0 0 2px;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-details p{margin:0;font-size:12px;color:var(--text-sub)}.file-actions{display:flex;gap:4px}.action-btn{background:transparent;border:none;padding:6px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-sub);transition:background-color .2s,color .2s}.action-btn:hover{background-color:var(--bg-secondary);color:var(--text-main)}.action-btn.delete:hover{color:var(--danger);background-color:#fa3e3e1a}.modal-overlay{position:fixed;inset:0;background-color:#000000d9;display:flex;align-items:center;justify-content:center;z-index:1000;padding:40px}.modal-content{max-width:100%;max-height:100%;position:relative;display:flex;flex-direction:column;align-items:center}.modal-content img{max-width:100%;max-height:calc(100vh - 120px);object-fit:contain;border-radius:4px;box-shadow:0 0 40px #00000080}.close-modal{position:absolute;top:-40px;right:-40px;background:transparent;border:none;color:#fff;cursor:pointer;opacity:.7}.close-modal:hover{opacity:1}.modal-footer{margin-top:16px;color:#fff;text-align:center}.modal-footer h3{margin:0 0 8px;font-size:16px}.modal-footer .download-link{color:var(--accent);text-decoration:none;font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px}.markdown-container{background-color:#fff;padding:40px;border-radius:12px;box-shadow:var(--shadow);border:1px solid var(--border-color)}.empty-state{grid-column:1 / -1;padding:80px;text-align:center;background:#fff;border-radius:12px;color:var(--text-sub);border:2px dashed var(--border-color)}.spinning{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.text-preview-hint{display:flex;flex-direction:column;align-items:center;gap:8px;opacity:.4;transition:opacity .2s}.text-preview-hint span{font-size:13px;font-weight:600}.file-preview-area:hover .text-preview-hint{opacity:.8}.text-modal-content{background:#fff;border-radius:12px;width:90vw;max-width:800px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 60px #00000080}.text-modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border-color);background:#fafafa;gap:12px}.text-modal-header h3{margin:0;font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.text-modal-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.text-modal-btn{display:flex;align-items:center;gap:6px;padding:6px 14px;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;border:1px solid var(--border-color);background:#fff;color:var(--text-main);text-decoration:none;transition:background-color .2s;white-space:nowrap}.text-modal-btn:hover{background-color:var(--bg-secondary)}.text-modal-btn.copy{background-color:var(--accent);color:#fff;border-color:var(--accent)}.text-modal-btn.copy:hover{filter:brightness(.9)}.text-modal-close{background:transparent;border:none;color:var(--text-sub);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center}.text-modal-close:hover{background-color:var(--bg-secondary);color:var(--text-main)}.text-modal-body{flex:1;overflow:auto;padding:0}.text-content{margin:0;padding:20px;font-family:SF Mono,Fira Code,Cascadia Code,Consolas,monospace;font-size:13px;line-height:1.6;white-space:pre-wrap;word-wrap:break-word;color:var(--text-main);background:#fff}.text-loading{padding:40px;text-align:center;color:var(--text-sub)}@media(max-width:640px){.text-modal-content{width:100vw;max-width:100vw;max-height:100vh;border-radius:0}.text-modal-header{padding:12px 16px}.text-modal-btn span{display:none}.text-content{font-size:12px;padding:16px}.modal-overlay{padding:0}}