:root{--bg: #131313;--bg-elevated: #1e1e1e;--border: #333;--text: #e6edf3;--text-muted: #888;--accent: #58a6ff;--danger: #f85149}*,*:before,*:after{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Helvetica,Arial,sans-serif;font-size:16px;overscroll-behavior:none;-webkit-font-smoothing:antialiased}[hidden]{display:none!important}#app{display:flex;flex-direction:column;height:100vh;height:100dvh;overflow:hidden}#signin-view{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;gap:1.25rem;padding:2rem}.signin-logo{font-size:1.75rem;font-weight:700;letter-spacing:-.02em}.auth-prompt{margin:0;color:var(--text-muted);font-size:.95rem}.btn-primary,.btn-secondary{display:inline-block;padding:.65rem 1.5rem;border:none;border-radius:6px;font-size:1rem;font-family:inherit;cursor:pointer}.btn-primary{background:var(--accent);color:#000;font-weight:600}.btn-primary:disabled{opacity:.5;cursor:default}.btn-secondary{background:var(--bg-elevated);color:var(--text-muted);border:1px solid var(--border)}#signedin-view{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}.toolbar{display:flex;align-items:center;gap:2px;padding:0 6px;padding-top:env(safe-area-inset-top);background:var(--bg-elevated);border-bottom:1px solid var(--border);flex:0 0 auto;min-height:44px;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;-webkit-overflow-scrolling:touch}.toolbar::-webkit-scrollbar{display:none}.toolbar-btn{background:transparent;border:none;color:var(--text);padding:6px 10px;font-size:.9rem;font-family:inherit;cursor:pointer;border-radius:4px;white-space:nowrap;min-height:32px;display:flex;align-items:center;gap:5px;-webkit-user-select:none;user-select:none}.toolbar-btn:active{background:#ffffff1f}.folder-btn{max-width:180px}.folder-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.folder-chevron{color:var(--text-muted);font-size:.8rem;flex:0 0 auto}.folder-icon{flex:0 0 auto}.settings-btn{font-size:1.2rem;padding:6px 8px}.toolbar-sep{width:1px;height:20px;background:var(--border);margin:0 2px;flex:0 0 auto}.toolbar-spacer{flex:1}.chart-view{flex:1 1 auto;min-height:0;min-width:0;display:flex;align-items:center;justify-content:center;background:#000;position:relative;overflow:hidden}.viewer-img{max-width:100%;max-height:100%;object-fit:contain;-webkit-user-select:none;user-select:none;display:block}.viewer-spinner{position:absolute;color:var(--text-muted);font-size:.9rem}.viewer-error{position:absolute;color:var(--danger);font-size:.9rem;text-align:center;padding:1rem;max-width:80%}.statusbar{display:flex;align-items:center;gap:.75rem;padding:0 10px;padding-bottom:max(6px,env(safe-area-inset-bottom));background:var(--bg-elevated);border-top:1px solid var(--border);flex:0 0 auto;min-height:44px;overflow:hidden}.statusbar-left{display:flex;align-items:center;gap:.5rem;flex:1;min-width:0;overflow:hidden}.status-counter{flex:0 0 auto;font-size:.82rem;color:var(--text-muted);font-variant-numeric:tabular-nums;white-space:nowrap}.status-filename{flex:1 1 auto;font-size:.82rem;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,monospace;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}.status-counter:not(:empty)+.status-filename:not(:empty):before{content:"· ";color:var(--text-muted)}.statusbar-nav{display:flex;align-items:center;gap:2px;flex:0 0 auto}.nav-btn{background:transparent;border:none;color:var(--text);padding:4px 8px;font-size:.85rem;font-family:ui-monospace,monospace;cursor:pointer;border-radius:4px;min-width:34px;min-height:32px;display:flex;align-items:center;justify-content:center;-webkit-user-select:none;user-select:none;white-space:nowrap}.nav-btn:active{background:#ffffff1f}.nav-btn:disabled{opacity:.25;cursor:default}#signedin-view.chrome-hidden .toolbar,#signedin-view.chrome-hidden .statusbar{display:none}.list-status{color:var(--text-muted);font-size:.9rem;padding:.5rem 0}.list-status.error{color:var(--danger)}.folder-picker{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:flex-end;justify-content:center;z-index:100}.picker-sheet{width:100%;max-width:640px;max-height:80dvh;background:var(--bg);border-top:1px solid var(--border);border-radius:16px 16px 0 0;display:flex;flex-direction:column;padding-bottom:env(safe-area-inset-bottom)}.picker-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--border);flex-shrink:0}.picker-header h2{margin:0;font-size:1.1rem;font-weight:600}.picker-close{background:transparent;border:none;color:var(--text-muted);font-size:1.4rem;cursor:pointer;padding:.25rem .5rem;line-height:1}.picker-section{padding:.75rem 1.25rem;border-bottom:1px solid var(--border);overflow-y:auto;flex-shrink:0}.picker-section:last-of-type{flex:1 1 auto;min-height:0}.picker-section-title{margin:0 0 .5rem;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.picker-breadcrumb{display:flex;flex-wrap:wrap;gap:.25rem;font-size:.85rem;margin-bottom:.5rem}.picker-breadcrumb button{background:transparent;border:none;color:var(--accent);padding:.15rem .3rem;font-size:inherit;cursor:pointer;border-radius:4px}.picker-breadcrumb .crumb-sep{color:var(--text-muted)}.picker-list{list-style:none;margin:0;padding:0}.picker-item{display:flex;align-items:center;gap:.6rem;padding:.65rem .25rem;border-bottom:1px solid var(--border);cursor:pointer}.picker-item:last-child{border-bottom:none}.picker-item:active{background:#58a6ff14}.picker-item.selected{background:#58a6ff1f}.picker-item-name{flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.picker-item-meta{flex:0 0 auto;font-size:.8rem;color:var(--text-muted)}.picker-item-remove{background:transparent;border:none;color:var(--text-muted);font-size:1rem;padding:.25rem .5rem;cursor:pointer}.picker-footer{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.75rem 1.25rem;border-top:1px solid var(--border);flex-shrink:0}.picker-current-path{flex:1 1 auto;font-size:.85rem;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sheet-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:flex-end;justify-content:center;z-index:100}.sheet{width:100%;max-width:480px;max-height:80dvh;background:var(--bg);border-top:1px solid var(--border);border-radius:16px 16px 0 0;display:flex;flex-direction:column;padding-bottom:env(safe-area-inset-bottom)}.sheet-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--border)}.sheet-header h2{margin:0;font-size:1.1rem;font-weight:600}.sheet-close{background:transparent;border:none;color:var(--text-muted);font-size:1.4rem;cursor:pointer;padding:.25rem .5rem;line-height:1}.sheet-body{padding:1rem 1.25rem 1.25rem;display:flex;flex-direction:column;gap:.5rem;overflow-y:auto;flex:1 1 auto;min-height:0}.sheet-section-title{margin:.75rem 0 .35rem;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.sheet-section-title:first-child{margin-top:0}.sheet-options{list-style:none;margin:0 -.25rem;padding:0}.sheet-option{padding:.85rem .75rem;border-bottom:1px solid var(--border);cursor:pointer;font-size:1rem;display:flex;align-items:center;gap:.75rem;-webkit-user-select:none;user-select:none;color:var(--text)}.sheet-option:last-child{border-bottom:none}.sheet-option:active{background:#58a6ff14}.sheet-option:before{content:"";width:18px;height:18px;border-radius:50%;border:1.5px solid var(--text-muted);flex:0 0 auto;display:inline-block}.sheet-option.selected:before{border-color:var(--accent);background:radial-gradient(var(--accent) 0 45%,transparent 55% 100%)}.sheet-option.selected{color:var(--text)}.settings-user{margin:0;color:var(--text-muted);font-size:.9rem}.settings-version{margin:0;color:var(--text-muted);font-size:.8rem}