:root{--bg: #0b0d10;--surface: #14171b;--surface-hover: #1b1f24;--border: #23272d;--text: #e6e9ed;--text-muted: #8b929c;--accent: #4fd8c4;--accent-dim: #2c8f81;--signature: #f2a93b;--danger: #e0605a;--danger-dim: #3a1c1a;--font-display: "Space Grotesk", sans-serif;--font-body: "Inter", sans-serif;--font-mono: "JetBrains Mono", monospace}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:var(--font-body);-webkit-font-smoothing:antialiased}.hidden{display:none!important}.mono{font-family:var(--font-mono);font-size:12px}.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at 20% 20%,rgba(79,216,196,.08),transparent 45%),radial-gradient(circle at 80% 70%,rgba(242,169,59,.06),transparent 40%),var(--bg);position:relative;overflow:hidden}.auth-screen:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:42px 42px;mask-image:radial-gradient(circle at 50% 40%,black,transparent 70%);pointer-events:none}.auth-card{position:relative;width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:36px 32px}.brand{display:flex;align-items:center;gap:10px;margin-bottom:6px}.brand-mark{font-size:22px;color:var(--accent)}.brand-name{font-family:var(--font-display);font-weight:600;font-size:20px;letter-spacing:-.01em}.brand-sub{color:var(--text-muted);font-size:13.5px;line-height:1.5;margin:10px 0 26px}.brand-sub code{font-family:var(--font-mono);font-size:12px;background:var(--bg);border:1px solid var(--border);padding:2px 6px;border-radius:4px;color:var(--accent)}.auth-form{display:flex;flex-direction:column;gap:8px}.auth-form label{font-size:12.5px;color:var(--text-muted);font-weight:500}.auth-form input{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--text);font-family:var(--font-mono);font-size:14px;margin-bottom:16px;outline:none;transition:border-color .15s ease}.auth-form input:focus{border-color:var(--accent)}.auth-error{color:var(--danger);font-size:13px;margin-top:16px;margin-bottom:0}.auth-status{color:var(--text-muted);margin-top:14px}.btn-primary{background:var(--accent);color:#06201c;border:none;border-radius:10px;padding:12px 18px;font-family:var(--font-body);font-weight:600;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:transform .1s ease,background .15s ease}.btn-primary:hover{background:#63e3d1}.btn-primary:active{transform:scale(.98)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text-muted);border-radius:10px;padding:10px 14px;cursor:pointer;font-size:15px;transition:border-color .15s ease,color .15s ease,background .15s ease}.btn-ghost:hover{border-color:var(--text-muted);color:var(--text)}.btn-ghost:disabled{opacity:.5;cursor:not-allowed}.btn-ghost.btn-danger:hover{border-color:var(--danger);color:var(--danger);background:#e0605a0f}.btn-danger-solid{background:var(--danger);color:#1a0a09;border:none;border-radius:10px;padding:12px 18px;font-family:var(--font-body);font-weight:600;font-size:14px;cursor:pointer;transition:transform .1s ease,background .15s ease}.btn-danger-solid:hover{background:#ea7570}.btn-danger-solid:active{transform:scale(.98)}.btn-danger-solid:disabled{opacity:.5;cursor:not-allowed}.app{min-height:100vh}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:16px 28px;background:#0b0d10d9;backdrop-filter:blur(10px);border-bottom:1px solid var(--border);gap:16px}.topbar-center{flex:1;display:flex;justify-content:center}.storage-info{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;background:var(--surface);border:1px solid var(--border);border-radius:999px;font-family:var(--font-mono);font-size:12px;color:var(--text-muted)}.storage-icon{font-size:13px;color:var(--accent)}.storage-text{letter-spacing:.02em}.topbar-actions{display:flex;align-items:center;gap:10px}.icon{font-size:15px;line-height:1}.batch-progress{position:sticky;top:65px;z-index:9;padding:12px 28px;background:var(--surface);border-bottom:1px solid var(--border)}.batch-progress-info{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--text-muted);font-family:var(--font-mono);margin-bottom:8px}.batch-progress-count{color:var(--accent)}.batch-progress-bar{height:4px;width:100%;background:#ffffff0f;border-radius:2px;overflow:hidden}.batch-progress-fill{height:100%;width:0%;background:var(--accent);transition:width .2s ease;border-radius:2px}.grid-container{padding:28px;max-width:1200px;margin:0 auto}.date-group{margin-bottom:32px}.date-heading{font-family:var(--font-mono);font-size:12.5px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin:0 0 12px 2px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:12px}.file-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 14px 12px;cursor:pointer;display:flex;flex-direction:column;gap:10px;transition:border-color .15s ease,background .15s ease,transform .1s ease}.file-card:hover{border-color:var(--accent-dim);background:var(--surface-hover);transform:translateY(-1px)}.file-card .lock{position:absolute;top:10px;right:10px;font-size:12px;color:var(--text-muted);transition:color .15s ease}.file-card:hover .lock{color:var(--accent)}.card-delete{position:absolute;top:8px;right:30px;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;background:#14171be6;border:1px solid var(--border);border-radius:8px;color:var(--text-muted);font-size:13px;cursor:pointer;opacity:0;transform:translateY(-4px);transition:opacity .15s ease,transform .15s ease,color .15s ease,border-color .15s ease;padding:0}.file-card:hover .card-delete{opacity:1;transform:translateY(0)}.card-delete:hover{color:var(--danger);border-color:var(--danger)}.thumb-wrap{width:100%;height:108px;border-radius:10px;overflow:hidden;background:#4fd8c412;display:flex;align-items:center;justify-content:center}.thumb-wrap .file-icon{font-size:26px;color:var(--accent);background:none;width:auto;height:auto}.thumb-img{width:100%;height:100%;object-fit:cover;display:block}.file-name{font-size:13.5px;font-weight:500;line-height:1.3;word-break:break-word;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.file-meta{font-family:var(--font-mono);font-size:11px;color:var(--text-muted)}.file-card.uploading{opacity:.7;pointer-events:none}.upload-progress{height:3px;width:100%;background:#ffffff14;border-radius:2px;overflow:hidden;margin-top:2px}.upload-progress-fill{height:100%;width:0%;background:var(--accent);transition:width .15s ease}.empty-state{text-align:center;padding:100px 20px;color:var(--text-muted)}.empty-mark{font-size:40px;color:var(--accent-dim);margin-bottom:16px}.empty-state h2{font-family:var(--font-display);color:var(--text);font-size:19px;margin:0 0 8px}.empty-state p{font-size:13.5px;max-width:320px;margin:0 auto}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--surface);border:1px solid var(--border);color:var(--text);padding:12px 18px;border-radius:10px;font-size:13.5px;box-shadow:0 8px 24px #00000059;z-index:100;max-width:90vw;word-break:break-word}.toast.error{border-color:var(--danger);color:var(--danger)}.preview-modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:24px}.preview-backdrop{position:absolute;inset:0;background:#060709d1;backdrop-filter:blur(4px)}.preview-panel{position:relative;width:100%;max-width:900px;max-height:88vh;background:var(--surface);border:1px solid var(--border);border-radius:16px;display:flex;flex-direction:column;overflow:hidden}.preview-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border);gap:12px}.preview-name{font-size:13.5px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}.preview-actions{display:flex;gap:8px;flex-shrink:0}.preview-actions .btn-ghost{padding:8px 12px}.preview-body{flex:1;overflow:auto;display:flex;align-items:center;justify-content:center;padding:20px;min-height:200px}.preview-body img{max-width:100%;max-height:76vh;border-radius:8px}.preview-body video,.preview-body audio{max-width:100%;max-height:76vh}.preview-body iframe{width:100%;height:76vh;border:none;border-radius:8px}.preview-body pre{width:100%;max-height:76vh;overflow:auto;font-family:var(--font-mono);font-size:13px;white-space:pre-wrap;word-break:break-word;margin:0}.preview-fallback{text-align:center;color:var(--text-muted);font-size:13.5px}.preview-fallback .icon-big{font-size:40px;display:block;margin-bottom:12px}.preview-loading{color:var(--text-muted);font-family:var(--font-mono);font-size:13px}.confirm-panel{position:relative;width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px 28px 24px;text-align:center}.confirm-icon{font-size:40px;margin-bottom:12px}.confirm-panel h3{font-family:var(--font-display);font-size:18px;margin:0 0 8px;color:var(--text)}.confirm-message{font-size:13.5px;color:var(--text-muted);line-height:1.55;margin:0 0 22px}.confirm-message code{font-family:var(--font-mono);font-size:12.5px;color:var(--text);background:var(--bg);border:1px solid var(--border);padding:2px 8px;border-radius:6px;word-break:break-all}.confirm-actions{display:flex;gap:10px;justify-content:flex-end}.confirm-actions .btn-ghost{flex:0 0 auto}.sync-overlay{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;background:#060709e6;backdrop-filter:blur(6px)}.sync-card{text-align:center;color:var(--text-muted)}.sync-spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 16px}@keyframes spin{to{transform:rotate(360deg)}}.sync-card h3{font-family:var(--font-display);font-size:16px;color:var(--text);margin:0 0 6px}.sync-card p{font-size:13px;margin:0}.btn-sync{background:transparent;border:1px solid var(--border);color:var(--text-muted);border-radius:10px;padding:10px 14px;cursor:pointer;font-size:14px;transition:border-color .15s ease,color .15s ease;line-height:1}.btn-sync:hover{border-color:var(--accent-dim);color:var(--accent)}.btn-sync:disabled{opacity:.5;cursor:not-allowed}.sync-indicator{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:#4fd8c414;border:1px solid var(--accent-dim);border-radius:999px;font-family:var(--font-mono);font-size:11px;color:var(--accent);animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.scroll-sentinel{height:1px;width:100%;margin-top:40px}.load-more-spinner{text-align:center;padding:24px;color:var(--text-muted);font-family:var(--font-mono);font-size:12px}@media(max-width:600px){.topbar{padding:12px 16px;gap:8px;flex-wrap:wrap}.topbar-center{order:3;flex-basis:100%;justify-content:flex-start}.grid-container{padding:16px}.btn-primary span.icon{margin:0}.batch-progress{top:110px;padding:10px 16px}.preview-actions .btn-ghost{padding:8px 10px}}