@font-face{font-family:Kota;src:url('../assets/kota-book.woff') format('woff');font-weight:400;font-display:swap}@font-face{font-family:Kota;src:url('../assets/kota-demi.woff') format('woff');font-weight:600 900;font-display:swap}
:root{font-family:Kota,'Trebuchet MS',Arial,sans-serif;color:#073f46;background:#c9dfb6;--ink:#073f46;--teal:#075b60;--cream:#fffdf2;--line:#dce4cc;--radius:26px;font-synthesis:none}*{box-sizing:border-box}html,body{margin:0;min-height:100%;overscroll-behavior:none}body{background:linear-gradient(130deg,#d8e7bd,#aacfab)}button,input,select{font:inherit}button{color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{border:0}button:focus-visible,select:focus-visible,input:focus-visible,#board:focus-visible{outline:4px solid #2e65cc;outline-offset:3px}button:disabled{cursor:default;opacity:.43}button:not(:disabled):active{transform:translateY(2px)}svg{display:block}button svg{width:25px;height:25px;fill:currentColor;flex-shrink:0}[hidden]{display:none!important}.icon-library{position:absolute;width:0;height:0;overflow:hidden}.app-shell{height:100vh;height:100dvh;min-height:640px;display:grid;grid-template-rows:94px minmax(0,1fr) 150px 26px;gap:12px;padding:0 15px;max-width:2600px;margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:10px 23px;background:var(--cream);border-radius:0 0 var(--radius) var(--radius);margin:0 -15px;box-shadow:0 3px 0 #50764309}.brand{display:flex;align-items:center;gap:14px;min-width:0}.brand>svg{width:47px;height:58px;flex:none}.brand h1{font-size:clamp(26px,2.45vw,45px);text-transform:uppercase;line-height:1.05;letter-spacing:-.7px;margin:0 0 7px;font-weight:800;white-space:nowrap}.brand p{margin:0;font-size:clamp(14px,1.35vw,22px);font-weight:600;line-height:1.15}.mode-switch{display:flex;align-items:center;padding:5px;background:#edf2df;border:2px solid #dce7c7;border-radius:24px;flex-shrink:0}.mode-switch button{min-height:52px;padding:9px 28px;background:transparent;border-radius:18px;font-size:clamp(16px,1.38vw,23px);font-weight:800;white-space:nowrap;transition:background .15s}.mode-switch .active{background:var(--teal);color:#fff;box-shadow:0 3px 5px #07565a1c}.header-tools{display:flex;gap:12px;align-items:center}.level-button{padding:13px 17px;background:#e5efd5;border-radius:25px;font-size:18px;font-weight:800;white-space:nowrap}.icon-button{display:flex;align-items:center;justify-content:center;width:54px;height:54px;background:#eef3e2;border:2px solid #d3e1bd;border-radius:18px;flex:none}.icon-button svg{width:30px;height:30px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) clamp(300px,27vw,400px);gap:14px;min-height:0}.play-area{position:relative;overflow:hidden;border:2px solid #f5ffe72b;border-radius:var(--radius);background:#d9edd1 url('assets/playground.webp') center center/cover no-repeat;isolation:isolate;min-height:0;box-shadow:0 2px 0 #46735d0c}.play-area:has(.shape-piece:focus-visible){outline:3px solid #2e65cc}.play-area.placing{cursor:crosshair}#board{width:100%;height:100%;touch-action:none;user-select:none;-webkit-user-select:none;position:relative;z-index:1}.canvas-caption{position:absolute;top:16px;left:16px;right:16px;display:flex;gap:8px;align-items:center;justify-content:flex-start;width:fit-content;max-width:calc(100% - 32px);border-radius:18px;background:#fffdf3e8;padding:9px 15px;z-index:3;pointer-events:none;font-size:clamp(14px,1.16vw,19px);font-weight:600;box-shadow:0 3px 16px #274b3910;line-height:1.25}.small-spark{color:#c38708;font-size:21px}.cancel-placement{pointer-events:auto;padding:5px 9px;background:#e3ead6;border-radius:10px;font-size:14px;font-weight:800}.shape-piece{cursor:grab;touch-action:none;outline:none}.shape-piece:active{cursor:grabbing}.selection-ring{stroke:#07565a;stroke-width:3;stroke-dasharray:8 6;fill:none;pointer-events:none;vector-effect:non-scaling-stroke}.shape-piece:focus-visible .selection-ring{stroke:#2e65cc;stroke-width:4}.target-shape{stroke:#326a67;stroke-opacity:.65;stroke-width:3;stroke-dasharray:10 8;fill:#ffffff39}.target-label{font-family:Kota,Arial,sans-serif;font-weight:800;font-size:19px;fill:#346b62;paint-order:stroke;stroke:#faffed;stroke-width:5;stroke-linejoin:round}.free-prompt{position:absolute;left:50%;top:48%;transform:translate(-50%,-50%);width:max-content;max-width:90%;text-align:center;pointer-events:none;background:#fffef2c7;padding:24px 38px;border-radius:25px;z-index:2}.free-prompt>span{font-size:clamp(24px,2.8vw,42px);font-weight:800}.free-prompt p{font-size:20px;line-height:1.5;margin:13px 0 0}.piece-toolbar{position:absolute;bottom:15px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:20px;border:2px solid #d8e3c9;background:#fffef5f7;box-shadow:0 5px 20px #24484217;z-index:5;max-width:calc(100% - 20px)}#selectedName{text-transform:capitalize;font-size:16px;font-weight:800;margin:0 7px;white-space:nowrap}.swatches{display:flex;gap:7px}.swatches button{width:34px;height:34px;border:3px solid white;outline:1px solid #cbd8bf;border-radius:50%;background:var(--swatch);position:relative}.swatches button.chosen:after{content:'✓';color:#05343c;position:absolute;inset:0;font:800 22px Arial;display:grid;place-items:center}.tool-divider{width:1px;height:28px;background:#d8dfcf;margin:0 3px}.mini-tool{background:#ecf2df;min-width:42px;height:42px;padding:5px;border-radius:12px;font-size:27px;display:grid;place-items:center;font-weight:800}.mini-tool svg{width:22px;height:22px}.delete-tool{background:#ffebe2;color:#ae4334}.mission-panel{display:flex;flex-direction:column;gap:12px;background:var(--cream);border:2px solid #f5f7e6;border-radius:var(--radius);padding:21px 22px;min-height:0;overflow:auto;scrollbar-width:thin}.mission-controls{display:flex;align-items:center;justify-content:space-between;gap:8px}.badge{font-size:18px;line-height:1.2;font-weight:800;background:#e3edd0;padding:9px 14px;border-radius:18px;width:fit-content}.pager{display:flex;gap:6px}.pager button{width:37px;height:37px;border-radius:12px;font-size:31px;font-family:Arial;background:#edf1e2;line-height:1}.mission-panel h2{font-size:clamp(26px,2.35vw,38px);font-weight:800;line-height:1.12;letter-spacing:-.6px;margin:0}.mission-instruction{font-size:clamp(16px,1.32vw,21px);line-height:1.45;margin:0}.listen-button{display:flex;align-items:center;justify-content:center;gap:12px;align-self:center;background:#e4edce;border-radius:24px;min-height:48px;padding:10px 24px;font-size:19px;font-weight:800}.listen-button svg{width:30px;height:30px}.example-card{position:relative;flex:1;min-height:100px;max-height:255px;border:2px solid #e8e9d7;border-radius:21px;display:flex;flex-direction:column;align-items:center;background:#ffffff42;padding:4px 7px 8px}.example-card svg{flex:1;width:100%;min-height:0;max-height:100%;overflow:visible}.example-card>span{font-size:15px;font-weight:800;line-height:1.2}.mission-progress{font-size:14px;font-weight:800}.mission-progress>div:first-child{display:flex;justify-content:space-between;align-items:center;margin-bottom:7px}.progress-track{height:7px;border-radius:8px;background:#e7ecd9;overflow:hidden}.progress-track>div{height:100%;background:#40a190;border-radius:8px;transition:width .25s}.primary-button{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;min-height:60px;padding:12px 16px;border-radius:19px;background:var(--teal);color:white;font-size:clamp(19px,1.85vw,28px);font-weight:800;box-shadow:inset 0 -3px 0 #003a432b}.primary-button:hover{background:#087079}.primary-button svg{width:26px;height:26px}.free-note{font-size:17px;line-height:1.5;margin:2px 0 0;text-align:center}.bottom-dock{display:grid;grid-template-columns:minmax(0,1fr) clamp(300px,27vw,400px);gap:18px;min-height:0;background:var(--cream);padding:10px 12px;border-radius:var(--radius)}.shape-tray{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.shape-button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;border:2px solid #e7e9d7;border-radius:22px;background:#fffdf4;font-size:clamp(15px,1.5vw,24px);font-weight:800;position:relative;padding:5px 8px;touch-action:none;user-select:none;transition:background .15s,border-color .15s;min-height:0;line-height:1.18}.shape-button:hover{background:#f3f6e6;border-color:#b5ceb3}.shape-button.selected{border:3px solid #087177;background:#e8f3e5;box-shadow:0 0 0 2px #08717718}.shape-button svg{flex:1;width:100%;height:0;min-height:35px;max-height:86px;overflow:visible;filter:drop-shadow(0 3px 0 #28473412)}.shape-button span{white-space:nowrap}.board-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.action-button{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;border:2px solid #dde7cb;background:#edf3df;border-radius:22px;font-size:clamp(17px,1.5vw,24px);font-weight:800}.action-button svg{width:47px;height:47px}.action-button:hover:not(:disabled){background:#e0eccb}.app-shell>footer{text-align:center;font-family:Kota,Arial,sans-serif;font-size:14px;line-height:20px;color:#365a45;font-weight:600}.toast{position:absolute;z-index:7;left:50%;top:50%;transform:translate(-50%,-50%);width:max-content;max-width:min(88%,600px);padding:19px 26px;background:#fffdf3;border:2px solid #d1dfbd;border-radius:23px;box-shadow:0 9px 40px #27473425;font-size:clamp(18px,1.65vw,26px);line-height:1.5;text-align:center;font-weight:600;pointer-events:none;animation:appear .15s ease}.drag-preview{position:fixed;z-index:100;pointer-events:none;transform:translate(-50%,-50%);width:95px;height:95px;opacity:.9;filter:drop-shadow(0 5px 8px #25544633)}.drag-preview svg{width:100%;height:100%}dialog{color:var(--ink);border:2px solid #e0e8cf;background:var(--cream);border-radius:30px;max-width:calc(100vw - 28px);max-height:90vh;padding:28px;box-shadow:0 30px 100px #163f3840}dialog::backdrop{background:#123c416b;backdrop-filter:blur(4px)}.settings-dialog{width:640px}.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.eyebrow{font-size:14px;font-weight:800;letter-spacing:2px;color:#4b7865}.dialog-heading h2{font-size:33px;margin:6px 0 0}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:17px 0;border-top:1px solid #e0e6d0;font-size:20px;font-weight:800;cursor:pointer}.setting-row small{display:block;font-size:14px;line-height:1.5;font-weight:400;margin-top:5px}.setting-row select{max-width:190px;background:#edf2df;border:2px solid #cddbba;border-radius:12px;padding:12px;color:var(--ink);font-size:17px}.setting-row input[type=checkbox]{width:27px;height:27px;accent-color:var(--teal);flex-shrink:0}.teacher-note{padding:17px 20px;margin:13px 0 23px;border-radius:18px;background:#edf3df;font-size:16px;line-height:1.55}.teacher-note p{margin:8px 0 0}.teacher-note p:last-child{font-size:14px}.success-dialog{width:500px;text-align:center;padding:38px}.success-close{position:absolute;right:15px;top:15px;width:44px;height:44px}.success-symbol{font-size:95px;line-height:1.2;color:#ecaa18;text-shadow:0 4px 0 #c7850e22;margin:0 0 13px}.success-dialog h2{font-size:34px;line-height:1.2;margin:12px 0}.success-dialog p{font-size:20px;line-height:1.5}.discussion-question{background:#eaf1dc;border-radius:18px;padding:16px}.success-dialog .primary-button{font-size:21px;margin-top:24px}.text-button{background:transparent;text-decoration:underline;text-underline-offset:5px;font-weight:800;font-size:17px;padding:16px 8px 0;min-height:48px}.noscript{position:fixed;inset:0;background:var(--cream);z-index:200;display:grid;place-items:center;font-size:24px;padding:30px}@keyframes appear{from{opacity:0;margin-top:5px}to{opacity:1;margin-top:0}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}
@media(min-width:1650px) and (min-height:850px){.app-shell{grid-template-rows:112px minmax(0,1fr) 190px 30px;gap:16px;padding:0 20px}.topbar{margin:0 -20px;padding:15px 32px}.brand>svg{width:61px;height:70px}.mode-switch button{min-height:64px;padding:12px 39px}.header-tools{gap:17px}.icon-button{width:64px;height:64px}.level-button{font-size:23px}.workspace,.bottom-dock{grid-template-columns:minmax(0,1fr) 28%;gap:18px}.mission-panel{gap:17px;padding:25px 27px}.mission-panel h2{font-size:clamp(36px,2.4vw,51px)}.mission-instruction{font-size:clamp(21px,1.35vw,29px)}.badge{font-size:23px}.listen-button{min-height:60px;font-size:25px}.example-card{max-height:none;min-height:140px}.example-card>span{font-size:20px}.mission-progress{font-size:18px}.primary-button{min-height:76px;font-size:32px}.shape-button svg{max-height:116px}.shape-button,.action-button{font-size:27px}.action-button svg{width:62px;height:62px}.bottom-dock{padding:12px 14px}.app-shell>footer{font-size:17px}.canvas-caption{font-size:21px}.mini-tool{width:50px;height:50px}.swatches button{width:40px;height:40px}.piece-toolbar{gap:11px}#selectedName{font-size:20px}}
@media(max-width:1120px){.app-shell{grid-template-rows:83px minmax(0,1fr) 128px 23px;gap:9px;padding:0 10px}.topbar{padding:9px 16px;gap:15px;margin:0 -10px}.brand>svg{width:36px;height:46px}.brand{gap:9px}.brand h1{font-size:26px}.brand p{font-size:14px}.mode-switch button{padding:9px 16px;min-height:47px;font-size:16px}.mode-switch{padding:4px;border-radius:19px}.header-tools{gap:7px}.level-button{font-size:15px;padding:11px}.icon-button{width:45px;height:45px;border-radius:14px}.icon-button svg{width:25px;height:25px}.workspace,.bottom-dock{grid-template-columns:minmax(0,1fr) 285px;gap:10px}.mission-panel{padding:15px;gap:10px}.mission-panel h2{font-size:26px}.mission-instruction{font-size:16px}.listen-button{font-size:16px;min-height:43px;padding:8px 20px}.listen-button svg{width:23px;height:23px}.badge{font-size:15px;padding:8px 11px}.primary-button{min-height:51px;font-size:22px}.example-card{min-height:90px}.shape-tray{gap:8px}.shape-button{font-size:17px;border-radius:18px}.shape-button svg{max-height:69px}.bottom-dock{gap:10px;padding:8px}.action-button{font-size:19px}.action-button svg{width:37px;height:37px}.canvas-caption{font-size:14px;left:10px;top:10px;padding:7px 10px;max-width:calc(100% - 20px)}#selectedName{display:none}.piece-toolbar{gap:5px;padding:7px 9px;bottom:10px}.swatches{gap:5px}.swatches button{width:29px;height:29px}.mini-tool{min-width:36px;height:38px}}
@media(max-height:740px) and (min-width:761px){.app-shell{min-height:580px;grid-template-rows:78px minmax(0,1fr) 120px 22px;gap:8px}.topbar{padding:8px 20px}.brand h1{font-size:29px;margin-bottom:4px}.brand p{font-size:14px}.brand>svg{height:50px;width:40px}.mission-panel{padding:14px 17px;gap:8px}.mission-panel h2{font-size:26px}.mission-instruction{font-size:16px;line-height:1.35}.badge{font-size:15px;padding:7px 12px}.listen-button{font-size:16px;min-height:40px;padding:7px 20px}.listen-button svg{width:23px;height:23px}.example-card{min-height:72px}.example-card>span{font-size:13px}.primary-button{min-height:48px;font-size:21px}.mission-progress{font-size:13px}.shape-button svg{max-height:67px}.shape-button,.action-button{font-size:19px}.action-button svg{width:38px;height:38px}.canvas-caption{font-size:14px}.header-tools .icon-button{width:48px;height:48px}.level-button{font-size:16px}.mode-switch button{min-height:46px;font-size:17px;padding:9px 23px}}
@media(max-width:760px){.app-shell{height:auto;min-height:100dvh;display:flex;flex-direction:column;gap:10px;padding:0 10px 4px}.topbar{flex-wrap:wrap;padding:12px 13px;gap:12px;margin:0 -10px}.brand{flex:1}.brand h1{font-size:25px}.brand p{font-size:13px}.brand>svg{width:34px}.header-tools{gap:6px}.level-button{font-size:13px;padding:9px}.header-tools .icon-button{width:39px;height:39px;border-radius:12px}.header-tools .icon-button svg{width:22px;height:22px}.mode-switch{order:3;flex-basis:100%;justify-content:center;padding:3px;max-width:100%}.mode-switch button{flex:1;min-height:44px}.workspace{display:flex;flex-direction:column;gap:10px}.play-area{height:clamp(330px,56vw,480px);border-radius:22px;flex:none}.mission-panel{display:grid;grid-template-columns:1fr 130px;gap:10px 15px;padding:16px;overflow:visible}.mission-controls,.mission-panel h2,.mission-instruction,.listen-button{grid-column:1}.mission-controls{grid-row:1}.mission-panel h2{grid-row:2;font-size:26px}.mission-instruction{grid-row:3}.listen-button{grid-row:4;width:fit-content;align-self:center;justify-self:start}.example-card{grid-column:2;grid-row:1/5;min-height:150px;max-height:none}.mission-progress{grid-column:1}.primary-button{grid-column:1/-1;min-height:52px}.free-note{grid-column:1/-1}.bottom-dock{display:flex;flex-direction:column;gap:9px;padding:9px;position:relative}.shape-tray{min-height:103px;gap:7px}.shape-button{font-size:clamp(12px,2.7vw,17px);padding:6px 3px;border-radius:15px}.shape-button svg{max-height:60px;min-height:35px}.board-actions{display:flex;gap:9px}.action-button{flex:1;flex-direction:row;min-height:50px;border-radius:15px;font-size:17px;gap:10px}.action-button svg{width:25px;height:25px}.app-shell>footer{font-size:13px;line-height:22px}.free-prompt{padding:20px}.free-prompt p{font-size:17px}.free-prompt>span{font-size:25px}.canvas-caption{font-size:13px;top:10px;left:9px;max-width:calc(100% - 18px);padding:8px;gap:4px}.small-spark{font-size:16px}.piece-toolbar{padding:6px 7px;gap:4px}.tool-divider{margin:0 1px}.swatches{gap:4px}.swatches button{width:26px;height:26px}.mini-tool{min-width:31px;height:34px;font-size:24px}.mini-tool svg{width:20px;height:20px}.toast{font-size:17px;padding:15px 19px}.settings-dialog{padding:21px}.setting-row{gap:15px;font-size:18px}.setting-row select{font-size:15px;max-width:150px}.success-dialog{padding:30px 23px}.success-dialog h2{font-size:29px}.success-dialog p{font-size:18px}}
@media(max-height:850px) and (min-width:761px){.mission-panel{gap:8px;padding:14px 17px}.mission-panel h2{font-size:27px;line-height:1.12}.mission-instruction{font-size:17px;line-height:1.4}.badge{font-size:15px;padding:8px 11px}.listen-button{min-height:38px;font-size:17px;padding:7px 21px}.listen-button svg{width:25px;height:25px}.example-card{min-height:65px}.example-card>span{font-size:14px}.primary-button{min-height:48px;font-size:22px}.mission-progress{font-size:13px}.pager button{height:32px;width:32px}}