:root{--bg-desktop: #4d6378;--bg-panel: #c0c0c0;--bg-panel-light: #d4d0c8;--bg-input: #ffffff;--bevel-light: #ffffff;--bevel-dark: #404040;--bevel-mid: #808080;--text: #000000;--text-muted: #555555;--title-bg: #000080;--title-bg-end: #1084d0;--title-fg: #ffffff;--accent: #000080;--font-ui: "Tahoma", "Verdana", "MS Sans Serif", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:var(--bg-desktop);color:var(--text);font-family:var(--font-ui);font-size:12px;user-select:none}button{font-family:inherit;font-size:inherit;color:var(--text);background:var(--bg-panel);border:1px solid;border-color:var(--bevel-light) var(--bevel-dark) var(--bevel-dark) var(--bevel-light);padding:3px 8px;cursor:pointer}button:active:not(:disabled){border-color:var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark)}button:disabled{color:var(--bevel-mid);cursor:not-allowed}button:focus{outline:1px dotted var(--bevel-dark);outline-offset:-4px}.material-symbols-outlined{font-family:Material Symbols Outlined;font-size:18px;line-height:1;vertical-align:middle}.bevel-out{border:2px solid;border-color:var(--bevel-light) var(--bevel-dark) var(--bevel-dark) var(--bevel-light)}.bevel-in{border:2px solid;border-color:var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark)}.muted{color:var(--text-muted);font-style:italic}.window{display:grid;grid-template-columns:1fr;grid-template-rows:auto auto auto 1fr auto auto;height:100vh;background:var(--bg-panel);border:1px solid var(--bevel-mid)}.window.with-sprites-panel{grid-template-columns:220px 1fr}.window>.titlebar,.window>.menubar{grid-column:1 / -1}.window>.sprites-aside{display:none}.window.with-sprites-panel>.sprites-aside{display:flex;flex-direction:column;grid-column:1;grid-row:3 / 7;background:var(--bg-panel);border-right:1px solid var(--bevel-mid);min-height:0;min-width:0;overflow:hidden}.window.with-sprites-panel>.topbar,.window.with-sprites-panel>.workspace,.window.with-sprites-panel>.bottom-strip,.window.with-sprites-panel>.statusbar{grid-column:2}.titlebar{display:flex;align-items:center;justify-content:space-between;padding:3px 4px;background:linear-gradient(to right,var(--title-bg),var(--title-bg-end));color:var(--title-fg)}.titlebar .title{font-weight:700;padding:0 4px}.titlebar-actions{display:flex;align-items:center;gap:6px}.titlebar-actions .btn{display:inline-flex;align-items:center;gap:4px}.login-status{font-size:11px;padding:2px 6px;color:#ffffffd9}.login-status.login-error{color:#ffd0a0}.user-avatar{width:22px;height:22px;border-radius:2px;border:1px solid var(--bevel-dark);display:inline-flex;align-items:center;justify-content:center;background:var(--bg-panel-light);color:var(--text);font-size:11px;font-weight:700;object-fit:cover}.user-name{font-size:11px;color:var(--title-fg);max-width:140px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.btn-logout{padding:2px 4px;display:inline-flex;align-items:center}#g-signin-button{min-height:32px;display:flex;align-items:center}.menubar{display:flex;gap:0;padding:2px 4px;background:var(--bg-panel);border-bottom:1px solid var(--bevel-mid)}.menubar .menu-item{padding:2px 8px;cursor:default;user-select:none}.menubar .menu-item:hover,.menubar .menu-item.open{background:var(--accent);color:var(--title-fg)}.menu-dropdown{position:fixed;background:var(--bg-panel);border:1px solid var(--bevel-mid);min-width:200px;padding:2px 0;z-index:999;box-shadow:2px 2px 4px #0000004d}.menu-row{display:flex;justify-content:space-between;align-items:center;padding:3px 16px 3px 24px;cursor:default;user-select:none}.menu-row:not(.disabled):hover{background:var(--accent);color:var(--title-fg)}.menu-row.disabled{color:var(--bevel-mid);cursor:not-allowed}.menu-shortcut{margin-left:16px;font-family:Courier New,monospace;font-size:11px;opacity:.85}.menu-separator{height:1px;background:var(--bevel-mid);margin:3px 4px}.topbar{display:flex;align-items:stretch;gap:6px;padding:4px 6px;background:var(--bg-panel);border-bottom:1px solid var(--bevel-mid);flex-wrap:wrap}.topbar-section{display:flex;align-items:center}.topbar-sep{width:1px;align-self:stretch;background:var(--bevel-mid)}#tool-panel{display:grid;grid-template-columns:repeat(4,28px);gap:2px}.tool-btn{width:28px;height:28px;display:flex;align-items:center;justify-content:center;padding:0}.tool-btn .material-symbols-outlined{font-size:18px}.tool-btn.active{border-color:var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);background:var(--bg-panel-light)}#options-panel{display:flex;flex-direction:column;gap:2px;justify-content:center}.opt-row{display:flex;gap:2px;align-items:center}.brush-btn{width:28px;height:28px;padding:0;font-family:Courier New,monospace;font-size:11px;display:inline-flex;align-items:center;justify-content:center}.brush-btn.active,.opt-btn.active{border-color:var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);background:var(--bg-panel-light)}.opt-btn{width:28px;height:28px;padding:0;display:inline-flex;align-items:center;justify-content:center}.opt-btn .material-symbols-outlined{font-size:16px}.zoom-label{display:inline-block;min-width:36px;padding:0 4px;text-align:center;font-family:Courier New,monospace;font-size:12px}.workspace{display:grid;grid-template-columns:1fr 220px;gap:4px;padding:4px;min-height:0}.panel{display:flex;flex-direction:column;background:var(--bg-panel);border:1px solid var(--bevel-mid);min-height:0}.panel-title{padding:2px 6px;font-weight:700;font-size:11px;background:var(--bg-panel-light);border-bottom:1px solid var(--bevel-mid);color:var(--text-muted)}.panel-body{padding:4px;overflow:auto}.panel-right .panel-body,.panel-canvas .panel-body{flex:1 1 auto}.canvas-host{display:flex;align-items:center;justify-content:center;background:var(--bg-desktop);padding:12px;overflow:auto}#edit-canvas{background:transparent;image-rendering:pixelated;image-rendering:crisp-edges;cursor:crosshair;outline:1px solid var(--bevel-dark)}#color-panel{display:flex;align-items:center;gap:6px}.color-current{display:flex;flex-direction:column;align-items:center;gap:2px}.swatch{width:24px;height:24px;border:1px solid;border-color:var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);cursor:pointer;padding:0}.swatch-current{width:28px;height:28px}#color-input{width:28px;height:18px;padding:0;border:1px solid var(--bevel-dark);background:transparent;cursor:pointer}.palette-grid{display:grid;grid-template-columns:repeat(16,12px);grid-auto-rows:12px;gap:1px}.palette-cell{width:12px;height:12px;padding:0;border:1px solid rgba(0,0,0,.45);box-sizing:border-box;cursor:pointer;background-color:transparent}.palette-cell:active:not(:disabled){border-color:#00000073}.palette-cell.active{outline:2px solid var(--accent);outline-offset:-1px;z-index:1}.transform-panel{display:flex;flex-direction:column;gap:2px;justify-content:center}.transform-row{display:flex;gap:2px}.transform-row button{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;padding:0}.transform-row button .material-symbols-outlined{font-size:16px}.transform-hint{display:none}.layers-panel{display:flex;flex-direction:column;height:100%}.layers-toolbar{display:flex;gap:2px;padding:2px;border-bottom:1px solid var(--bevel-mid);margin-bottom:4px}.layers-toolbar button{display:inline-flex;align-items:center;justify-content:center;padding:3px 4px}.layers-list{list-style:none;margin:0;padding:0;flex:1;overflow:auto;background:var(--bg-input);border:1px solid var(--bevel-mid)}.layer-row{display:flex;align-items:center;gap:4px;padding:2px 4px;cursor:default;border-bottom:1px solid var(--bg-panel-light)}.layer-row.active{background:var(--accent);color:var(--title-fg)}.layer-row .visibility{padding:0 2px;background:transparent;border:0;color:inherit;cursor:pointer}.layer-row .visibility .material-symbols-outlined{font-size:16px}.layer-row .layer-name{flex:1;padding:1px 2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.layer-row .layer-name-input{flex:1;font:inherit;color:var(--text);background:var(--bg-input);border:1px solid var(--bevel-dark);padding:0 2px}.bottom-strip{display:grid;grid-template-columns:1fr auto auto;gap:8px;align-items:center;padding:4px 6px;background:var(--bg-panel);border-top:1px solid var(--bevel-mid);min-height:80px}.bottom-section{display:flex;align-items:center;gap:4px;min-width:0}.bottom-sep{width:1px;height:64px;background:var(--bevel-mid)}.bottom-frames{overflow:hidden}.frames-toolbar{display:flex;gap:2px;flex:0 0 auto}.frames-toolbar button{display:inline-flex;align-items:center;justify-content:center;padding:3px 4px}.frames-separator{display:inline-block;width:1px;height:18px;background:var(--bevel-mid);margin:0 4px}.frames-list{display:flex;gap:4px;overflow-x:auto;overflow-y:hidden;flex:1 1 auto;align-items:center;padding:2px;min-width:0}.frame-thumb{position:relative;flex:0 0 auto;display:flex;flex-direction:column;align-items:center;padding:2px;background:var(--bg-panel-light);border:1px solid var(--bevel-mid);cursor:pointer}.frame-thumb.active{border-color:var(--accent);background:var(--accent)}.frame-thumb canvas{display:block;background:transparent;image-rendering:pixelated;pointer-events:none}.frame-thumb .frame-no{font-size:10px;font-family:Courier New,monospace;margin-top:2px;pointer-events:none}.frame-thumb.active .frame-no{color:var(--title-fg)}.bottom-preview{flex:0 0 auto}.preview-canvas{background:transparent;image-rendering:pixelated;border:1px solid var(--bevel-mid);flex:0 0 auto}.preview-controls{display:flex;align-items:center;gap:4px}.preview-controls button{width:24px;height:24px;padding:0;display:inline-flex;align-items:center;justify-content:center}.preview-controls button .material-symbols-outlined{font-size:16px}.preview-controls button.active{border-color:var(--bevel-dark) var(--bevel-light) var(--bevel-light) var(--bevel-dark);background:var(--bg-panel-light)}.fps-label{margin-left:4px;font-size:11px}#fps-slider{width:80px}.fps-value{display:inline-block;min-width:18px;text-align:right;font-family:Courier New,monospace;font-size:11px}.statusbar{display:flex;justify-content:space-between;gap:8px;padding:2px 8px;background:var(--bg-panel);border-top:1px solid var(--bevel-mid);font-size:11px}.save-status{font-size:11px;color:var(--text-muted)}.save-status-anon{color:var(--bevel-mid)}.save-status-dirty{color:#840;font-weight:700}.save-status-saving{color:#048}.save-status-error{color:#a00}.login-screen{position:fixed;inset:0;background:linear-gradient(135deg,#2c3e50,#4d6378 60%,#5e7a93);display:flex;align-items:center;justify-content:center;z-index:2000}.login-screen-window{background:var(--bg-panel);border:1px solid var(--bevel-mid);box-shadow:4px 4px 12px #0006;padding:28px 36px 24px;min-width:360px;max-width:440px;text-align:center}.login-screen-icon{display:flex;align-items:center;justify-content:center;margin:0 auto 8px;width:56px;height:56px;background:var(--accent);color:var(--title-fg);border:1px solid var(--bevel-dark)}.login-screen-icon .material-symbols-outlined{font-size:32px}.login-screen-title{margin:4px 0;font-size:22px;font-weight:700;color:var(--text)}.login-screen-desc{margin:0 0 20px;color:var(--text-muted);font-size:12px}.login-screen-options{display:flex;flex-direction:column;align-items:center;gap:8px}.login-screen-google-host{min-height:44px;display:flex;align-items:center;justify-content:center}.login-screen-note{margin:0;font-size:11px}.login-screen-divider{display:flex;align-items:center;gap:8px;width:100%;margin:4px 0;color:var(--text-muted);font-size:11px}.login-screen-divider:before,.login-screen-divider:after{content:"";flex:1;height:1px;background:var(--bevel-mid)}.login-screen-skip{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:var(--bg-panel-light);font-size:12px}.login-screen-skip:hover:not(:disabled){background:var(--bg-panel)}.modal-overlay{position:fixed;inset:0;background:#0000002e;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-overlay-passthrough{background:transparent;pointer-events:none}.modal-overlay-passthrough .modal-window{pointer-events:auto}.modal-window{min-width:320px;background:var(--bg-panel);border:1px solid var(--bevel-mid);display:flex;flex-direction:column;box-shadow:4px 4px 8px #0000004d}.modal-title{display:flex;align-items:center;justify-content:space-between;padding:3px 4px;background:linear-gradient(to right,var(--title-bg),var(--title-bg-end));color:var(--title-fg)}.modal-close{padding:0 4px;background:var(--bg-panel)}.modal-body{padding:12px;display:flex;flex-direction:column;gap:8px}.rotate-row{display:flex;align-items:center;gap:8px}.rotate-row label{min-width:64px}.rotate-row input[type=number]{width:80px;font:inherit;padding:2px 4px;border:1px solid var(--bevel-dark);background:var(--bg-input)}.rotate-row input[type=range]{flex:1}.modal-footer{display:flex;justify-content:flex-end;gap:6px;padding:8px;background:var(--bg-panel-light);border-top:1px solid var(--bevel-mid)}.modal-footer button{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;min-width:80px;justify-content:center}.modal-footer .btn-default{font-weight:700}.modal-wide{min-width:560px}.sprite-list-body{max-height:60vh;overflow-y:auto;display:flex;flex-direction:column;gap:4px}.sprite-list-item{display:flex;align-items:center;gap:8px;padding:6px;background:var(--bg-input);border:1px solid var(--bevel-mid);cursor:pointer}.sprite-list-item:hover{outline:1px dotted var(--accent);outline-offset:-2px}.sprite-thumb,.sprite-thumb-empty{width:48px;height:48px;border:1px solid var(--bevel-mid);background:var(--bg-panel-light);image-rendering:pixelated;flex:0 0 auto}.sprite-meta{flex:1;display:flex;flex-direction:column;min-width:0}.sprite-name{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sprite-info{font-size:10px}.sprite-actions{display:flex;gap:2px;flex:0 0 auto}.sprite-actions button{padding:3px 4px}.prompt-label{display:block;margin-bottom:4px}.prompt-input{width:100%;font:inherit;padding:3px 4px;border:1px solid var(--bevel-dark);background:var(--bg-input)}.form-group{display:flex;flex-direction:column;gap:4px}.form-label{font-weight:700}.radio-row{display:flex;gap:6px;flex-wrap:wrap}.radio-tile{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;background:var(--bg-panel-light);border:1px solid var(--bevel-mid);cursor:pointer;user-select:none;font-family:Courier New,monospace;font-size:12px}.radio-tile input{margin:0}.help-dialog-body{max-height:70vh;overflow-y:auto;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.help-section{padding:6px 8px;border:1px solid var(--bevel-mid);background:var(--bg-input)}.help-section-title{font-weight:700;margin-bottom:4px;border-bottom:1px solid var(--bevel-mid);padding-bottom:2px}.help-table{width:100%;border-collapse:collapse;font-size:11px}.help-table td{padding:2px 4px;vertical-align:top}.help-table .help-key{font-family:Courier New,monospace;white-space:nowrap;color:var(--accent);width:40%}.sprites-panel-header{display:flex;align-items:center;justify-content:space-between;padding:3px 6px;background:var(--bg-panel-light);border-bottom:1px solid var(--bevel-mid);flex:0 0 auto}.sprites-panel-title{font-weight:700;font-size:11px;color:var(--text-muted)}.sprites-panel-header button{padding:2px 4px;display:inline-flex;align-items:center;justify-content:center}.sprites-panel-header button .material-symbols-outlined{font-size:14px}.sprites-panel-export{padding:4px 6px;border-bottom:1px solid var(--bevel-mid);flex:0 0 auto}.sprites-panel-export button{width:100%;display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:4px 6px;font-size:11px}.sprites-panel-export button .material-symbols-outlined{font-size:14px}.sprites-panel-export button:disabled{opacity:.5;cursor:not-allowed}.sprites-panel-list{flex:1 1 auto;overflow-y:auto;padding:4px;display:flex;flex-direction:column;gap:4px;min-height:0}.sprites-panel-message{padding:8px;text-align:center;font-size:11px}.sprites-panel-item{display:grid;grid-template-columns:auto 40px 1fr;grid-template-rows:auto auto;grid-template-areas:"check thumb meta" "check thumb actions";align-items:center;gap:4px;padding:4px;background:var(--bg-input);border:1px solid var(--bevel-mid);cursor:pointer;font-size:11px}.sprites-panel-item:hover{outline:1px dotted var(--accent);outline-offset:-2px}.sprites-panel-item.active{border-color:var(--accent);background:var(--bg-panel-light)}.sprites-panel-check{grid-area:check;margin:0;cursor:pointer}.sprites-panel-item .sprite-thumb,.sprites-panel-item .sprite-thumb-empty{grid-area:thumb;width:40px;height:40px}.sprites-panel-meta{grid-area:meta;display:flex;flex-direction:column;min-width:0}.sprites-panel-meta .sprite-name{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sprites-panel-meta .sprite-info{font-size:10px}.sprites-panel-actions{grid-area:actions;display:flex;gap:2px;justify-content:flex-end}.sprites-panel-actions button{padding:2px 3px;display:inline-flex;align-items:center;justify-content:center}.sprites-panel-actions button .material-symbols-outlined{font-size:13px}