:root{--bg:#fafafa;--surface:#fff;--surface-2:#fbfcfd;--border:#e5e7eb;--border-strong:#d1d5db;--hour-line:#e1e5eb;--halfhour-line:#ecf0f4;--quarter-line:#f4f6f9;--text:#1f2937;--muted:#6b7280;--accent:#2563eb;--accent-hover:#1d4ed8;--danger:#dc2626;--hover:#f3f4f6;--gutter-w:56px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--bg:#0f172a;--surface:#1e293b;--surface-2:#182030;--border:#334155;--border-strong:#475569;--hour-line:#334155;--halfhour-line:#2c3a52;--quarter-line:#283248;--text:#e2e8f0;--muted:#94a3b8;--accent:#60a5fa;--accent-hover:#3b82f6;--danger:#f87171;--hover:#334155;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji;font-size:14px;line-height:1.4}button{font:inherit;background:var(--surface);border:1px solid var(--border-strong);cursor:pointer;color:var(--text);border-radius:6px;padding:6px 12px;transition:background .1s,border-color .1s}button:hover{background:var(--hover)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover{background:var(--accent-hover)}button.danger{background:var(--surface);color:var(--danger);border-color:#fca5a5}button.danger:hover{background:#fef2f2}:root[data-theme=dark] button.danger{border-color:#7f1d1d}:root[data-theme=dark] button.danger:hover{background:#3b1414}input[type=text],input[type=date],input[type=time],input[type=datetime-local],textarea{font:inherit;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:6px;padding:6px 8px}input:focus,textarea:focus{outline-offset:0;border-color:var(--accent);outline:2px solid #bfdbfe}.app{flex-direction:column;height:100vh;min-height:100vh;display:flex}.app-header{border-bottom:1px solid var(--border);background:var(--surface);align-items:baseline;gap:12px;padding:12px 20px;display:flex}.app-header h1{letter-spacing:-.01em;margin:0;font-size:20px}.app-header .subtitle{color:var(--muted);font-size:13px}.app-main{flex:1;min-height:0;padding:16px 20px;display:flex;overflow:hidden}.app-footer{color:var(--muted);border-top:1px solid var(--border);background:var(--surface);padding:8px 20px;font-size:12px}.toolbar{border-bottom:1px solid var(--border);background:var(--surface);flex-wrap:wrap;align-items:end;gap:16px;padding:10px 20px;display:flex}.toolbar-group{align-items:end;gap:8px;display:flex}.toolbar label{color:var(--muted);flex-direction:column;gap:4px;font-size:12px;display:flex}.toolbar-actions{align-items:center;margin-left:auto}.icon-btn{justify-content:center;align-items:center;gap:2px;min-width:36px;height:32px;padding:0 8px;font-size:16px;line-height:1;display:inline-flex}.icon-btn .caret{color:var(--muted);font-size:10px}.io-menu-wrap{position:relative}.io-menu-trigger{align-items:center;gap:6px;display:inline-flex}.io-menu-trigger .caret{color:var(--muted);font-size:10px}.io-menu{z-index:30;background:var(--surface);border:1px solid var(--border);border-radius:6px;flex-direction:column;min-width:160px;padding:4px;display:flex;position:absolute;top:calc(100% + 4px);right:0;box-shadow:0 8px 24px #0f172a1f}.io-menu button{text-align:left;color:inherit;cursor:pointer;background:0 0;border:none;border-radius:4px;padding:8px 12px;font-size:13px}.io-menu button:hover,.io-menu button:focus-visible{background:var(--hover,#f3f4f6);outline:none}.io-menu button.danger{color:var(--danger)}.io-menu button[disabled]{opacity:.5;cursor:not-allowed}.share-menu-wrap{position:relative}.share-btn{gap:6px;width:auto;padding:0 10px}.share-btn[disabled]{opacity:.5;cursor:not-allowed}.share-btn .share-label{font-size:13px;font-weight:500}.share-btn.share-active{color:#15803d;background:#f0fdf4;border-color:#16a34a}.share-btn.share-active:hover{background:#dcfce7}.share-dot{background:#16a34a;border-radius:50%;width:8px;height:8px;display:inline-block;box-shadow:0 0 0 2px #16a34a2e}.app-header .info-btn{width:28px;height:28px;color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:50%;justify-content:center;align-items:center;padding:0;font-size:16px;display:inline-flex}.app-header .info-btn:hover{background:var(--hover);color:var(--text);border-color:var(--border)}.modal.about-modal{gap:8px;width:520px}.about-modal .about-content h2{margin:0 0 6px;font-size:22px}.about-modal .about-content h3{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:14px 0 4px;font-size:13px}.about-modal .about-content p,.about-modal .about-content ul{margin:0 0 8px;font-size:14px;line-height:1.5}.about-modal .about-content ul{padding-left:20px}.about-modal .about-content li{margin-bottom:4px}.about-modal .about-content a{color:var(--accent);text-decoration:none}.about-modal .about-content a:hover{text-decoration:underline}.about-modal .about-content code{background:var(--hover);border-radius:3px;padding:1px 4px;font-size:12.5px}.about-modal .about-version{color:var(--muted);margin-top:12px;font-size:12px}.app-header .read-only-badge{color:#92400e;background:#fef3c7;border:1px solid #fde68a;border-radius:999px;align-items:center;gap:6px;margin-left:auto;padding:3px 10px;font-size:12px;display:inline-flex}.share-error-banner{color:#991b1b;background:#fef2f2;border-bottom:1px solid #fecaca;align-items:center;gap:12px;padding:8px 16px;font-size:13px;display:flex}.share-error-banner .grow{flex:1}.share-error-banner button{font-size:12px}.viewer-error{text-align:center;color:var(--muted);flex:1;justify-content:center;align-items:center;padding:40px 20px;display:flex}.viewer-error h2{color:var(--text);margin:0 0 8px;font-size:18px}.conf-name-input{width:220px;font:inherit;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:6px;padding:6px 8px}.conf-name-input::placeholder{color:#9ca3af}.conf-name-input:disabled{background:var(--hover);color:var(--muted);cursor:not-allowed}.tz-select{min-width:240px;position:relative}.tz-trigger{width:100%;font:inherit;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);cursor:pointer;text-align:left;border-radius:6px;justify-content:space-between;align-items:center;gap:8px;padding:6px 8px;display:flex}.tz-trigger:hover{background:var(--hover)}.tz-trigger-id{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.tz-trigger-caret{color:var(--muted);flex:none;font-size:11px}.tz-popover{background:var(--surface);border:1px solid var(--border-strong);z-index:80;border-radius:6px;flex-direction:column;min-width:280px;display:flex;position:absolute;top:0;left:0;right:0;box-shadow:0 8px 24px #00000024}.tz-search{font:inherit;border:none;border-bottom:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:6px 6px 0 0;outline:none;padding:8px 10px}.tz-menu{max-height:280px;margin:0;padding:4px;list-style:none;overflow:auto}.tz-empty{color:var(--muted);padding:10px;font-size:12px}.tz-option{cursor:pointer;border-radius:4px;align-items:center;gap:8px;padding:6px 8px;font-size:13px;display:flex}.tz-option-id{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.tz-option-offset{color:var(--muted);font-variant-numeric:tabular-nums;flex:none;font-size:12px}.tz-option.highlight{background:var(--hover)}.tz-option.selected{background:#eef2ff;font-weight:600}.calendar-grid{background:var(--surface);border:1px solid var(--border);min-width:900px;min-height:0;min-width:calc(var(--gutter-w) + var(--num-days,7) * 130px);border-radius:8px;flex-direction:column;flex:1;display:flex;overflow:hidden}.grid-header{grid-template-columns:var(--gutter-w) repeat(var(--num-days,7), 1fr);border-bottom:1px solid var(--border);background:var(--surface-2);display:grid}.gutter-corner{border-right:1px solid var(--border)}.day-header{border-right:1px solid var(--border);text-align:center;padding:8px 12px}.day-header:last-child{border-right:none}.day-header-name{font-size:13px;font-weight:600}.day-header-date{color:var(--muted);font-size:12px}.grid-body{flex:1;min-height:0;display:flex;position:relative;overflow:hidden auto}.time-gutter{width:var(--gutter-w);flex:0 0 var(--gutter-w);border-right:1px solid var(--border);background:var(--surface-2);position:relative}.time-tick{color:var(--muted);font-size:11px;position:absolute;right:6px;transform:translateY(-50%)}.day-columns{grid-template-columns:repeat(var(--num-days,7), 1fr);background-image:linear-gradient(to bottom, var(--hour-line) 1px, transparent 1px), linear-gradient(to bottom, var(--halfhour-line) 1px, transparent 1px), linear-gradient(to bottom, var(--quarter-line) 1px, transparent 1px);background-position:0 0,0 0,0 0;background-repeat:repeat-y;flex:1;display:grid;position:relative}.day-column{border-right:1px solid var(--border);cursor:crosshair;-webkit-user-select:none;user-select:none;position:relative}.day-column:last-child{border-right:none}.session-block{color:#fff;cursor:move;opacity:.92;border-left:3px solid;border-radius:5px;padding:3px 6px 3px 8px;font-size:12px;transition:opacity .1s,box-shadow .1s;position:absolute;box-shadow:0 1px 2px #0000000f}.session-block:hover{opacity:1;box-shadow:0 2px 6px #0000001a}.session-block-inner{pointer-events:none;border-radius:3px;flex-direction:column;gap:1px;height:100%;display:flex;position:relative;overflow:hidden}.session-title{-webkit-line-clamp:2;text-overflow:ellipsis;word-break:break-word;-webkit-box-orient:vertical;padding-right:60px;font-weight:600;display:-webkit-box;overflow:hidden}.session-time{opacity:.92;font-variant-numeric:tabular-nums;font-size:11px;position:absolute;bottom:0;right:0}.session-block.hatched{color:#1f2937;text-shadow:none;background-color:#fff;background-image:repeating-linear-gradient(45deg,#d1d5db 0 4px,#fff 4px 8px);border-left-color:#9ca3af!important}.session-block.hatched .session-time,.session-block.hatched .session-location{opacity:1}.session-location{opacity:.85;white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.resize-handle{cursor:ns-resize;z-index:2;height:6px;position:absolute;left:0;right:0}.resize-handle.top{top:0}.resize-handle.bottom{bottom:0}.move-grip{cursor:grab;z-index:4;color:#ffffffd9;opacity:0;pointer-events:auto;background:#ffffff2e;border-radius:3px;justify-content:center;align-items:center;width:12px;transition:opacity .1s;display:flex;position:absolute;top:6px;bottom:6px;right:2px}.move-grip:active{cursor:grabbing}.move-grip-dots{letter-spacing:-2px;-webkit-user-select:none;user-select:none;font-size:10px;line-height:1}.session-block:hover .move-grip{opacity:1}.session-block.tiny .move-grip{opacity:.95;background:#ffffff59;width:14px;top:0;bottom:0}.session-block.hatched .move-grip{color:#1f2937;background:#1f293726}.session-block.hatched.tiny .move-grip{background:#1f293759}.hover-actions{z-index:5;opacity:0;pointer-events:none;gap:3px;transition:opacity 80ms;display:flex;position:absolute;top:2px;right:16px}.session-block:hover .hover-actions{opacity:1;pointer-events:auto}.session-block.tiny .hover-actions{background:0 0;padding-bottom:2px;top:-20px;right:0}.hover-action{color:#1f2937;cursor:pointer;background:#fffffff2;border:1px solid #0000001f;border-radius:3px;justify-content:center;align-items:center;width:18px;height:18px;padding:0;font-size:12px;line-height:1;display:flex;box-shadow:0 1px 2px #00000014}.hover-action:hover{background:#fff}.hover-action.delete:hover{color:var(--danger);background:#fef2f2;border-color:#fca5a5}.ghost-block{pointer-events:none;background:#2563eb26;border:1px dashed #2563eb99;border-radius:4px;position:absolute;left:4px;right:4px}.modal-backdrop{z-index:50;background:#0f172a59;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:10px;flex-direction:column;gap:12px;width:460px;max-width:calc(100vw - 24px);padding:20px;display:flex;box-shadow:0 20px 50px #0000002e}.modal h2{margin:0 0 4px;font-size:16px}.modal label{color:var(--muted);flex-direction:column;gap:4px;font-size:12px;display:flex}.modal input[type=text],.modal textarea,.modal input[type=datetime-local]{width:100%}.modal .time-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.modal .palette{color:var(--muted);flex-direction:column;gap:6px;font-size:12px;display:flex}.swatches{gap:8px;display:flex}.swatch{cursor:pointer;border:2px solid #0000;border-radius:50%;width:26px;height:26px;padding:0}.swatch.selected{border-color:#1f2937;box-shadow:inset 0 0 0 2px #fff}.swatch.hatched,.autopop-color-swatch.hatched{background-color:#fff;background-image:repeating-linear-gradient(45deg,#111827 0 3px,#fff 3px 6px)}.modal-actions{align-items:center;gap:8px;margin-top:8px;display:flex}.error{color:var(--danger);font-size:12px}.hint{color:var(--muted);font-size:12px}.autopop-modal{width:760px}.autopop-modal .hint{color:var(--muted);margin:0;font-size:12px}.autopop-rows{flex-direction:column;gap:6px;margin-top:4px;display:flex}.autopop-row{grid-template-columns:28px 100px 90px 1fr 130px 140px 32px;align-items:center;gap:8px;display:grid}.autopop-row-head{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:2px;font-size:11px}.autopop-idx{color:var(--muted);text-align:center;font-variant-numeric:tabular-nums}.autopop-row select,.autopop-row input[type=time],.autopop-row input[type=number]{width:100%}.autopop-row select{font:inherit;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:6px;padding:6px 8px}.autopop-remove{width:28px;height:28px;color:var(--muted);padding:0;font-size:18px;line-height:1}.autopop-remove:disabled{opacity:.4;cursor:not-allowed}.autopop-actions-row{gap:8px;margin-top:4px;display:flex}.autopop-replace{color:var(--text);align-items:center;gap:8px;font-size:13px;display:flex;flex-direction:row!important}.autopop-color-picker{align-items:center;min-width:0;display:flex;position:relative}.autopop-color-swatch{border:1px solid #00000026;border-radius:4px;flex:0 0 16px;width:16px;height:16px;display:inline-block}.autopop-color-trigger{width:100%;font:inherit;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);text-align:left;cursor:pointer;border-radius:6px;align-items:center;gap:8px;padding:6px 8px;display:flex}.autopop-color-trigger:hover{background:var(--hover)}.autopop-color-name{text-transform:capitalize;white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.autopop-color-caret{color:var(--muted);flex:none;font-size:11px}.autopop-color-menu{background:var(--surface);border:1px solid var(--border-strong);z-index:70;border-radius:6px;max-height:240px;margin:0;padding:4px;list-style:none;position:absolute;top:calc(100% + 4px);left:0;right:0;overflow:auto;box-shadow:0 6px 20px #0000001f}.autopop-color-option{cursor:pointer;text-transform:capitalize;border-radius:4px;align-items:center;gap:8px;padding:6px 8px;display:flex}.autopop-color-option:hover{background:var(--hover)}.autopop-color-option.selected{background:#eef2ff;font-weight:600}.autopop-colors{min-width:0}.autopop-colors-pair{flex-direction:column;gap:4px;display:flex}.autopop-colors-row{align-items:center;gap:6px;display:flex}.autopop-colors-label{color:var(--muted);flex:0 0 14px;width:14px;font-size:12px}.confirm-backdrop{z-index:60}.confirm-modal{width:360px}.confirm-modal p{color:var(--text);margin:0;font-size:13px}.confirm-modal .danger{background:var(--danger);border-color:var(--danger);color:#fff}.confirm-modal .danger:hover{background:#b91c1c}@media (width<=900px){.app-main{padding:8px}.calendar-grid{min-width:900px}}:root[data-theme=dark] .tz-option.selected,:root[data-theme=dark] .autopop-color-option.selected{background:#1e3a8a}:root[data-theme=dark] .session-block.hatched{color:#e2e8f0;background-color:#1e293b;background-image:repeating-linear-gradient(45deg,#475569 0 4px,#1e293b 4px 8px)}:root[data-theme=dark] .hover-actions{background:#0f172ab3}:root[data-theme=dark] .hover-action{color:#e2e8f0;background:#1e293bf2;border-color:#ffffff1f}:root[data-theme=dark] .hover-action:hover{background:#334155}:root[data-theme=dark] .hover-action.delete:hover{background:#3b1414;border-color:#7f1d1d}:root[data-theme=dark] .read-only-badge{color:#fde68a!important;background:#422006!important;border-color:#78350f!important}:root[data-theme=dark] .share-error-banner{color:#fecaca;background:#3b1414;border-bottom-color:#7f1d1d}:root[data-theme=dark] .share-btn.share-active{color:#86efac;background:#052e16;border-color:#15803d}:root[data-theme=dark] .share-btn.share-active:hover{background:#064e3b}:root[data-theme=dark] .ghost-block{background:#60a5fa2e;border:1px dashed #60a5fa99}:root[data-theme=dark] .session-block:hover{box-shadow:0 2px 6px #00000080}:root[data-theme=dark] input:focus,:root[data-theme=dark] textarea:focus{outline-color:#1e40af}.app-header .theme-btn{width:28px;height:28px;color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:50%;justify-content:center;align-items:center;padding:0;font-size:14px;display:inline-flex}.app-header .theme-btn:hover{background:var(--hover);color:var(--text);border-color:var(--border)}