@import"https://fonts.googleapis.com/css2?family=Sora:wght@300;400;700;800&family=JetBrains+Mono:wght@400;600&family=Noto+Sans+JP:wght@400;700&display=swap";:root{--bg-primary: #0d0f14;--bg-secondary: #13161e;--bg-surface: #1a1d27;--bg-overlay: rgba(13, 15, 20, .85);--text-primary: #e2e8f0;--text-muted: #64748b;--text-dim: #334155;--accent: #5eead4;--accent-dim: rgba(94, 234, 212, .12);--accent-border: rgba(94, 234, 212, .3);--nav-height: 56px;--header-height: 52px;--thumb-width: 240px;--slide-gutter: clamp(.4rem, 1.5vw, 1.5rem);--border: 1px solid rgba(255, 255, 255, .06);--radius: 8px;--transition: .18s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;opacity:0}html,body{width:100%;height:100%;overflow:hidden;background:var(--bg-primary);color:var(--text-primary);font-family:Sora,Noto Sans JP,sans-serif;-webkit-font-smoothing:antialiased}#ptr-indicator{position:fixed;top:0;left:50%;transform:translate(-50%) translateY(-100%);z-index:300;width:40px;height:40px;margin-top:12px;border-radius:50%;background:var(--bg-surface);border:var(--border);display:flex;align-items:center;justify-content:center;pointer-events:none;will-change:transform}#ptr-indicator svg{width:20px;height:20px;stroke:var(--text-muted);transition:stroke var(--transition);transform-origin:center}#ptr-indicator.ready svg{stroke:var(--accent)}#ptr-indicator.releasing{transition:transform .3s cubic-bezier(.4,0,.2,1)}#ptr-indicator.hidden{display:none}@keyframes ptr-spin{to{transform:rotate(360deg)}}#ptr-indicator.spinning svg{animation:ptr-spin .7s linear infinite;stroke:var(--accent)}#landing{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:100;overflow:hidden;background:var(--bg-primary)}#landing:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 20% 40%,rgba(94,234,212,.08) 0%,transparent 55%),radial-gradient(ellipse at 80% 60%,rgba(99,102,241,.07) 0%,transparent 55%);pointer-events:none}.landing-card{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:2rem;animation:fadeUp .7s ease-out both}.landing-icon{width:72px;height:72px;border-radius:20px;background:var(--bg-surface);border:var(--border);display:flex;align-items:center;justify-content:center;animation:fadeUp .7s .1s ease-out both}.landing-icon svg{width:36px;height:36px;stroke:var(--accent)}.landing-title{font-size:2.25rem;font-weight:800;letter-spacing:-.03em;line-height:1.1;text-align:center;animation:fadeUp .7s .15s ease-out both}.landing-title span{color:var(--accent)}.landing-desc{font-size:.9rem;color:var(--text-muted);font-weight:300;text-align:center;animation:fadeUp .7s .2s ease-out both}.landing-btn{position:relative;display:inline-flex;align-items:center;gap:.6rem;padding:.75rem 1.75rem;background:var(--accent-dim);border:1px solid var(--accent-border);border-radius:var(--radius);color:var(--accent);font-family:inherit;font-size:.875rem;font-weight:600;cursor:pointer;transition:background var(--transition),box-shadow var(--transition);animation:fadeUp .7s .25s ease-out both}.landing-btn:hover{background:#5eead433;box-shadow:0 0 24px #5eead426}.landing-btn svg{width:16px;height:16px;stroke:currentColor}.landing-hint{font-size:.75rem;color:var(--text-dim);font-family:JetBrains Mono,monospace;animation:fadeUp .7s .3s ease-out both}#landing.hidden{display:none}#viewer{position:fixed;inset:0;display:flex;flex-direction:column;background:var(--bg-primary)}#viewer.hidden{display:none}#slide-area{position:relative;flex:1;min-height:0;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:var(--slide-gutter);background:var(--bg-primary)}#slide-wheel-overlay{position:absolute;inset:0;z-index:1;cursor:default;pointer-events:auto}#slide-frame{display:block;aspect-ratio:16 / 9;width:min(100%,calc((100vh - var(--header-height) - var(--nav-height) - (var(--slide-gutter) * 2)) * 16 / 9));height:auto;max-width:100%;max-height:100%;border:none;border-radius:var(--radius);box-shadow:0 8px 32px #00000080,0 0 0 1px #ffffff0a;background:#fff}#viewer.sidebar-open #slide-area{margin-left:var(--thumb-width)}#nav-bar{flex-shrink:0;height:var(--nav-height);display:flex;align-items:center;justify-content:space-between;padding:0 1rem;background:var(--bg-secondary);border-top:var(--border);gap:.5rem;z-index:10}.nav-group{display:flex;align-items:center;gap:.25rem}.nav-group--spacer{min-width:44px}.nav-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;background:transparent;border:none;border-radius:6px;color:var(--text-muted);cursor:pointer;transition:background var(--transition),color var(--transition)}.nav-btn:hover:not(:disabled){background:var(--accent-dim);color:var(--accent)}.nav-btn:disabled{opacity:.25;cursor:not-allowed}.nav-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}#page-indicator{font-family:JetBrains Mono,monospace;font-size:1rem;font-weight:600;color:var(--text-primary);letter-spacing:.04em;min-width:80px;text-align:center;padding:0 .75rem}#app-header{flex-shrink:0;height:var(--header-height);display:flex;align-items:center;justify-content:space-between;padding:0 .75rem;background:var(--bg-secondary);border-bottom:var(--border);z-index:10}.header-group{flex:1;display:flex;align-items:center;gap:.5rem}.header-group:last-child{justify-content:flex-end}.header-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;background:transparent;border:none;border-radius:var(--radius);color:var(--text-muted);cursor:pointer;transition:background var(--transition),color var(--transition)}.header-btn:hover{background:var(--accent-dim);color:var(--accent)}.header-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.header-title{font-size:.95rem;font-weight:700;letter-spacing:-.01em;color:var(--text-primary);-webkit-user-select:none;user-select:none}.header-title span{color:var(--accent)}#open-btn-viewer{display:inline-flex;align-items:center;gap:.4rem;height:36px;padding:0 1rem;background:transparent;border:1px solid var(--accent-border);border-radius:var(--radius);color:var(--accent);font-family:inherit;font-size:.8rem;font-weight:600;cursor:pointer;transition:background var(--transition),border-color var(--transition)}#open-btn-viewer:hover{background:var(--accent-dim);border-color:var(--accent)}#open-btn-viewer svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}#thumbnail-panel{position:fixed;top:var(--header-height);left:0;bottom:var(--nav-height);width:var(--thumb-width);background:#252935;border-right:var(--border);overflow-y:auto;overflow-x:hidden;z-index:20;transform:translate(-100%);transition:transform .28s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;gap:0}#thumbnail-panel.open{transform:translate(0)}.thumb-header{padding:.875rem 1rem;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);border-bottom:var(--border);position:sticky;top:0;background:#252935;z-index:1}.thumb-item{display:flex;align-items:center;gap:.75rem;padding:.6rem 1rem;cursor:pointer;border-bottom:var(--border);transition:background var(--transition);flex-shrink:0}.thumb-item:hover{background:var(--accent-dim)}.thumb-item.active{background:var(--accent-dim);border-left:3px solid var(--accent)}.thumb-item.active .thumb-num{color:var(--accent);font-weight:600}.thumb-num{font-family:JetBrains Mono,monospace;font-size:.65rem;color:var(--text-muted);min-width:20px;text-align:right;transition:color var(--transition)}.thumb-preview{flex:1;aspect-ratio:16 / 9;background:#ffffff0f;border-radius:4px;border:1px solid rgba(255,255,255,.12);overflow:hidden;pointer-events:none}.thumb-preview iframe{width:400%;height:400%;transform:scale(.25);transform-origin:top left;border:none;pointer-events:none}@keyframes fadeUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}#thumbnail-panel::-webkit-scrollbar{width:4px}#thumbnail-panel::-webkit-scrollbar-track{background:transparent}#thumbnail-panel::-webkit-scrollbar-thumb{background:var(--text-dim);border-radius:2px}@media(max-width:600px){:root{--slide-gutter: .4rem}.landing-title{font-size:1.75rem}#nav-bar{padding:0 .5rem}.nav-group--nav{gap:.75rem}#app-header{padding:0 .5rem}.header-title{font-size:.85rem}#open-btn-viewer{font-size:.75rem;padding:0 .65rem}#viewer.sidebar-open #slide-area{margin-left:0}#thumbnail-panel{width:80vw}#thumbnail-panel.open{box-shadow:8px 0 32px #00000080}#sidebar-overlay{display:none;position:fixed;inset:0;z-index:19}#viewer.sidebar-open #sidebar-overlay{display:block}}@media(orientation:landscape)and (max-height:500px){:root{--header-height: 40px;--nav-height: 44px}}#viewer:fullscreen #app-header{display:none}#viewer:fullscreen #slide-area{padding:0}#viewer:fullscreen #slide-frame{width:min(100%,calc((100vh - var(--nav-height)) * 16 / 9));border-radius:0;box-shadow:none}.modal-overlay{position:fixed;inset:0;z-index:200;background:#0d0f14cc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:16px}.modal-overlay.hidden{display:none}.modal{background:#1c1f2b;border:1px solid rgba(255,255,255,.1);border-radius:12px;width:100%;max-width:480px;max-height:80vh;display:flex;flex-direction:column;box-shadow:0 24px 64px #0009}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.08);flex-shrink:0}.modal-title{font-family:Sora,sans-serif;font-size:14px;font-weight:600;color:#e2e8f0;letter-spacing:.02em}.modal-close{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;background:transparent;color:#8892a4;border-radius:6px;cursor:pointer;padding:0;transition:background var(--transition),color var(--transition)}.modal-close:hover{background:#ffffff14;color:#e2e8f0}.modal-close svg{width:16px;height:16px;stroke:currentColor}.modal-body{overflow-y:auto;flex:1;padding:8px}.modal-empty{text-align:center;color:#8892a4;font-size:13px;padding:48px 16px;margin:0}.modal-file-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;cursor:pointer;transition:background var(--transition);border-left:3px solid transparent}.modal-file-item:hover{background:#ffffff0d}.modal-file-item.current{border-left-color:#5eead4;background:#5eead40f}.modal-file-icon{flex-shrink:0;color:#8892a4}.modal-file-icon svg{width:20px;height:20px;stroke:currentColor;display:block}.modal-file-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.modal-file-name{font-size:13px;font-weight:500;color:#e2e8f0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.modal-file-meta{font-size:11px;color:#8892a4;font-family:JetBrains Mono,monospace}.modal-file-item.current .modal-file-name{color:#5eead4}.modal-delete-btn{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;background:transparent;color:#8892a4;border-radius:6px;cursor:pointer;padding:0;opacity:0;transition:opacity var(--transition),background var(--transition),color var(--transition)}.modal-file-item:hover .modal-delete-btn{opacity:1}.modal-delete-btn:hover{background:#ff6b6b1f;color:#ff6b6b}.modal-delete-btn svg{width:14px;height:14px;stroke:currentColor;display:block}@media(hover:none){.modal-file-item .modal-delete-btn{opacity:1}}