:root{--win-bg:#c2c9d2;--win-panel:#b0b8c4;--win-footer:#525a66;--win-face:silver;--win-light:#fff;--win-light-inner:#e6ebf0;--win-shadow:#7e8794;--win-dark:#1e242b;--win-title:navy;--win-title-gradient:#1084d0;--canvas-bg:#e6ebeb;--font-system:"MS Sans Serif", Tahoma, "Segoe UI", Arial, sans-serif}*{box-sizing:border-box;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;touch-action:manipulation;margin:0;padding:0}html,body{width:100%;height:100dvh;font-family:var(--font-system);color:#000;background-color:#2b3a4a;background-image:radial-gradient(#3c4f63 15%,#0000 16%);background-size:16px 16px;justify-content:center;align-items:center;font-size:13px;display:flex;overflow:hidden}#app{width:100%;height:100%;padding:max(8px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));justify-content:center;align-items:center;display:flex}.retro-window{background:var(--win-bg);border-top:2px solid var(--win-light);border-left:2px solid var(--win-light);border-right:2px solid var(--win-dark);border-bottom:2px solid var(--win-dark);box-shadow:inset 1px 1px 0 var(--win-light-inner), inset -1px -1px 0 var(--win-shadow), 0 8px 24px #0000008c;flex-direction:column;width:100%;max-width:960px;height:100%;max-height:740px;display:flex}.retro-title-bar{background:linear-gradient(90deg, var(--win-title), var(--win-title-gradient));color:#fff;letter-spacing:.4px;justify-content:space-between;align-items:center;padding:4px 6px;font-size:12px;font-weight:700;display:flex}.retro-window-buttons{gap:2px;display:flex}.retro-window-buttons span,.retro-btn-close{background:var(--win-face);color:#000;cursor:pointer;border-top:1px solid var(--win-light);border-left:1px solid var(--win-light);border-right:1px solid var(--win-dark);border-bottom:1px solid var(--win-dark);width:18px;height:16px;box-shadow:inset -1px -1px 0 var(--win-shadow);justify-content:center;align-items:center;font-size:11px;font-weight:700;display:inline-flex}.retro-window-buttons span:active,.retro-btn-close:active{border-top:1px solid var(--win-dark);border-left:1px solid var(--win-dark);border-right:1px solid var(--win-light);border-bottom:1px solid var(--win-light);box-shadow:inset 1px 1px 0 var(--win-shadow);transform:translate(1px,1px)}.retro-inset-box{background:var(--canvas-bg);border-top:2px solid var(--win-shadow);border-left:2px solid var(--win-shadow);border-right:2px solid var(--win-light);border-bottom:2px solid var(--win-light);box-shadow:inset 1px 1px 0 var(--win-dark), inset -1px -1px 0 var(--win-light-inner)}.retro-btn{background:var(--win-bg);border-top:2px solid var(--win-light);border-left:2px solid var(--win-light);border-right:2px solid var(--win-dark);border-bottom:2px solid var(--win-dark);box-shadow:inset 1px 1px 0 var(--win-light-inner), inset -1px -1px 0 var(--win-shadow);cursor:pointer;color:#000;outline:none;padding:6px 14px;font-family:inherit;font-size:12px;font-weight:700}.retro-btn:active{border-top:2px solid var(--win-dark);border-left:2px solid var(--win-dark);border-right:2px solid var(--win-light);border-bottom:2px solid var(--win-light);box-shadow:inset 1px 1px 0 var(--win-shadow);transform:translate(1px,1px)}.menu-body,.playfield-body{background:var(--win-bg);flex:1;gap:6px;padding:6px 6px 4px;display:flex;overflow:hidden}.menu-sidebar{flex-shrink:0;grid-template-rows:repeat(4,1fr);gap:6px;width:96px;display:grid}.playfield-sidebar{flex-shrink:0;grid-template-rows:repeat(4,1fr);gap:4px;width:128px;display:grid}.empty-panel{border-top:1px solid var(--win-shadow);border-left:1px solid var(--win-shadow);border-right:1px solid var(--win-light);border-bottom:1px solid var(--win-light);background:#0000000d;border-radius:2px}.menu-content,.playfield-content{flex-direction:column;flex:1;gap:6px;display:flex;overflow:hidden}.grid-container{background:var(--win-panel);flex:1;align-items:center;padding:14px 18px;display:flex;overflow-y:auto}.puzzle-grid{grid-template-columns:repeat(4,1fr);gap:12px 14px;width:100%;display:grid}.puzzle-card{cursor:pointer;background:0 0;border:1px solid #0000;border-radius:3px;flex-direction:column;align-items:center;padding:6px 4px;transition:background .15s,transform .1s;display:flex;position:relative}.puzzle-card:hover{background:#ffffff40;border:1px solid #fff6;box-shadow:0 2px 6px #0000001a}.puzzle-card:active{background:#0000001a;transform:translate(1px,1px)}.card-canvas-wrap{justify-content:center;width:100%;display:flex;position:relative}.card-canvas-wrap canvas{width:100%;max-width:120px;height:82px;display:block}.solved-badge{color:#fff;border-top:1px solid var(--win-light);border-left:1px solid var(--win-light);border-right:1px solid var(--win-dark);border-bottom:1px solid var(--win-dark);background:#107c28;justify-content:center;align-items:center;width:18px;height:18px;font-size:11px;font-weight:700;display:flex;position:absolute;top:0;right:6px}.card-title{text-align:center;color:#111;text-shadow:0 1px #ffffff59;margin-top:4px;font-size:12px;font-weight:600}.kiosk-title-box{background:var(--win-bg);border-top:2px solid var(--win-light);border-left:2px solid var(--win-light);border-right:2px solid var(--win-dark);border-bottom:2px solid var(--win-dark);height:44px;box-shadow:inset 1px 1px 0 var(--win-light-inner);justify-content:space-between;align-items:center;padding:0 10px;display:flex;position:relative}.status-puzzle-title,.menu-status-text{letter-spacing:.3px;color:#111;text-align:center;flex:1;font-size:14px;font-weight:700}.page-tab-btn{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:6px 4px;font-size:11px;line-height:1.2;display:flex}.page-tab-btn span:first-child{letter-spacing:.5px;font-size:11px;font-weight:800}.page-tab-btn span:last-child{color:#333;font-size:10px}.page-tab-btn.active{border-top:2px solid var(--win-shadow);border-left:2px solid var(--win-shadow);border-right:2px solid var(--win-light);border-bottom:2px solid var(--win-light);box-shadow:inset 1px 1px 0 var(--win-dark);background:#d4d0c8}.page-tab-btn.active span:first-child{color:#0b2e13}.page-nav-btn{flex-shrink:0;justify-content:center;align-items:center;min-width:36px;height:28px;padding:4px 12px;font-size:13px;display:inline-flex}.kiosk-footer-bar{background:var(--win-footer);border-top:2px solid var(--win-light);border-left:2px solid var(--win-shadow);border-right:2px solid var(--win-dark);border-bottom:2px solid var(--win-dark);justify-content:flex-end;align-items:center;height:36px;padding:0 10px;display:flex}.status-icons,.status-action-icons{gap:8px;display:flex}.status-btn{background:var(--win-footer);color:#d8dee8;cursor:pointer;border:1px solid #1e242b;border-color:#9aa4b4 #1e242b #1e242b #9aa4b4;border-radius:2px;justify-content:center;align-items:center;width:26px;height:24px;font-family:inherit;font-size:14px;font-weight:700;display:flex;box-shadow:inset -1px -1px #39404a}.status-btn:hover{color:#fff;background:#6c7687}.status-btn:active{border:1px solid #9aa4b4;border-color:#1e242b #9aa4b4 #9aa4b4 #1e242b;transform:translate(1px,1px);box-shadow:inset 1px 1px #39404a}.canvas-wrapper{flex:1;display:flex;position:relative;overflow:hidden}#game-canvas{cursor:grab;touch-action:none;width:100%;height:100%}#game-canvas:active{cursor:grabbing}.mce-menu-btn{background:var(--win-panel);flex-direction:column;justify-content:space-between;align-items:center;width:100%;height:100%;padding:6px;display:flex;position:relative;overflow:hidden}.mce-iso-cluster{justify-content:center;align-items:center;width:100%;height:62px;display:flex;position:relative}.iso-block-letter{color:#eef3f7;text-shadow:-1px 1px #7b8491,-2px 2px #5b6370,-3px 3px #3d434d,-4px 4px #1f242a,-6px 6px 2px #0000008c,1px -1px #fff;font-family:Arial Black,Impact,sans-serif;font-size:26px;font-weight:900;line-height:1;position:absolute}.iso-m{top:2px;left:14px;transform:skewY(-22deg)rotate(-8deg)}.iso-c{font-size:24px;top:4px;left:48px;transform:skewY(18deg)rotate(12deg)}.iso-e{font-size:32px;top:12px;right:12px;transform:skewY(-18deg)}.menu-label{letter-spacing:2.5px;color:#fff;text-shadow:-1px -1px #000,1px -1px #000,-1px 1px #000,1px 1px #000,0 2px #000;z-index:2;font-family:Arial Narrow,Arial,sans-serif;font-size:14px;font-weight:900}.sidebar-controls{background:var(--win-panel);border-top:2px solid var(--win-light);border-left:2px solid var(--win-light);border-right:2px solid var(--win-dark);border-bottom:2px solid var(--win-dark);flex-direction:column;justify-content:center;gap:4px;padding:6px;display:flex}.retro-tool-btn{background:var(--win-bg);border-top:2px solid var(--win-light);border-left:2px solid var(--win-light);border-right:2px solid var(--win-dark);border-bottom:2px solid var(--win-dark);box-shadow:inset 1px 1px 0 var(--win-light-inner), inset -1px -1px 0 var(--win-shadow);color:#000;cursor:pointer;flex:1;justify-content:center;align-items:center;gap:5px;padding:6px 4px;font-family:inherit;font-size:11px;font-weight:700;display:flex}.retro-tool-btn:hover{background:#bcc4d0}.retro-tool-btn:active{border-top:2px solid var(--win-dark);border-left:2px solid var(--win-dark);border-right:2px solid var(--win-light);border-bottom:2px solid var(--win-light);box-shadow:inset 1px 1px 0 var(--win-shadow);transform:translate(1px,1px)}.retro-tool-btn .icon{font-size:13px;line-height:1}.victory-banner{pointer-events:none;z-index:100;justify-content:center;display:flex;position:absolute;bottom:12px;left:12px;right:12px}.victory-banner.hidden{display:none}.victory-content{pointer-events:auto;background:var(--win-bg);border-top:2px solid var(--win-light);border-left:2px solid var(--win-light);border-right:2px solid var(--win-dark);border-bottom:2px solid var(--win-dark);box-shadow:inset 1px 1px 0 var(--win-light-inner), inset -1px -1px 0 var(--win-shadow), 0 6px 18px #00000073;justify-content:space-between;align-items:center;gap:16px;width:100%;max-width:520px;padding:10px 16px;display:flex}.victory-text-group{text-align:left}.victory-title{color:#0b5c1c;font-size:15px;font-weight:700}.victory-sub{color:#222;font-size:12px}.victory-actions{flex-shrink:0;gap:8px;display:flex}@media (pointer:coarse){.retro-btn,.retro-tool-btn{min-height:44px;padding:8px 12px;font-size:12px}.status-btn{width:44px;height:36px;font-size:16px}.kiosk-footer-bar{height:46px}.retro-window-buttons span,.retro-btn-close{width:28px;height:24px;font-size:14px}}@media (width<=768px){#app{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.retro-window{max-width:100%;height:100%;max-height:100%}.puzzle-grid{grid-template-columns:repeat(2,1fr);gap:8px}.menu-sidebar{display:none}.playfield-body{flex-direction:column;gap:4px;padding:4px}.playfield-sidebar{flex-direction:row;gap:4px;width:100%;height:auto;display:flex}.playfield-sidebar .empty-panel{display:none}.mce-menu-btn{flex-direction:row;gap:6px;width:auto;min-width:88px;height:48px;padding:4px 8px}.mce-iso-cluster{transform-origin:0;width:46px;height:36px;transform:scale(.65)}.sidebar-controls{background:0 0;border:none;flex-direction:row;flex:1;padding:0}.retro-tool-btn{flex-direction:column;gap:2px;min-height:48px;padding:4px 6px;font-size:10px}.kiosk-title-box{height:36px}.victory-content{text-align:center;flex-direction:column;gap:10px}.victory-text-group{text-align:center}}@media (height<=500px) and (orientation:landscape){.retro-title-bar{display:none}.playfield-sidebar{grid-template-rows:auto 1fr;width:112px}.playfield-sidebar .empty-panel{display:none}.kiosk-title-box{height:28px}.status-puzzle-title{font-size:13px}.kiosk-footer-bar{height:34px}}.dev-overlay{z-index:999;background:#000000a6;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.dev-panel{background:var(--win-bg);width:90%;max-width:550px;max-height:85vh;overflow-y:auto}.dev-title-bar{background:maroon!important}.dev-content{flex-direction:column;gap:10px;padding:12px;display:flex}.dev-row{align-items:center;gap:8px;display:flex}.dev-row select{flex:1;padding:4px}.dev-table{border-collapse:collapse;width:100%;font-size:11px}.dev-table th,.dev-table td{border:1px solid var(--win-shadow);text-align:left;padding:4px 6px}.dev-table th{background:#dfdfdf}pre{background:#eee;border:1px solid #ccc;padding:6px;font-size:11px;overflow-x:auto}