@font-face{font-family:Doodle;src:url('./assets/doodle-font.ttf') format('truetype');font-display:swap}
:root{--bg:#faf9f6;--ink:#49392f;--muted:#78766f;--line:#e6e0d8;--peach:#fce7d8;--sage:#e4efd9;--lavender:#e6e1f5;--accent:#ffcfaf;--good:#3e7550;--radius:25px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Doodle,'Microsoft JhengHei',system-ui,sans-serif;font-size:18px;line-height:1.5}button,select,a{-webkit-tap-highlight-color:transparent}button,select{font:inherit;color:inherit}button,a,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}a{color:inherit;text-decoration:none}button{border:0;background:none}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid #397895;outline-offset:4px}h1,h2,h3,p{margin:0}h1,h2,h3,.brand{font-weight:700}h1{font-size:clamp(34px,4.7vw,65px);line-height:1.35;letter-spacing:1px}h2{font-size:32px}h3{font-size:30px}p{color:var(--muted)}.site-header{max-width:1440px;margin:auto;min-height:88px;padding:18px 48px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid transparent}.brand{display:flex;align-items:center;gap:13px;font-size:29px;white-space:nowrap}.site-header nav{display:flex;gap:28px;align-items:center;font-size:18px}.settings-button{border:1.5px solid #86827d;border-radius:30px;padding:8px 20px;white-space:nowrap}.settings-button span{font-family:system-ui;font-size:23px;margin-right:5px}.site-header nav a:hover,.site-header nav button:hover{color:#a45d38}#app{max-width:1440px;margin:auto;padding:0 48px}.intro{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:290px;padding:18px 32px 24px}.intro-copy{max-width:760px;z-index:1}.intro p{font-size:22px;line-height:1.8;margin-top:18px}.intro-art{position:relative;display:flex;align-items:end;gap:28px;flex-shrink:0;width:390px;justify-content:center}.intro-art .rocket{transform:rotate(24deg);margin-bottom:25px}.intro-art:before,.intro-art:after{content:'✦';color:#ecc461;position:absolute;font-size:36px;right:20px;top:-10px}.intro-art:after{left:10px;top:20px;font-size:24px}.art{display:inline-block;background-repeat:no-repeat;flex-shrink:0;mix-blend-mode:multiply;vertical-align:middle}.activities{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.activity-card{border-radius:var(--radius);min-height:424px;padding:28px 22px 26px;text-align:center;display:flex;flex-direction:column;align-items:center;transition:transform .2s}.activity-card:hover{transform:translateY(-4px)}.peach{background:var(--peach)}.sage{background:var(--sage)}.lavender{background:var(--lavender)}.card-art{height:206px;display:flex;align-items:center;justify-content:center;width:100%;margin-bottom:12px}.fish-preview{position:relative;width:270px;height:196px}.fish-preview .art{position:absolute}.fish-preview .art:nth-child(1){left:3px;top:12px;transform:rotate(-9deg)}.fish-preview .art:nth-child(2){right:1px;top:3px;transform:rotate(8deg)}.fish-preview .art:nth-child(3){left:81px;top:81px;transform:rotate(-6deg)}.fish-preview .art:nth-child(4){left:6px;bottom:3px;transform:rotate(8deg)}.fish-preview .art:nth-child(5){right:0;bottom:0;transform:rotate(-9deg)}.activity-card p{font-size:18px;margin:5px 0 22px}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:54px;border:1.5px solid var(--line);border-radius:32px;padding:10px 26px;background:#fffefa;font-size:20px;font-weight:700;transition:background .15s,transform .15s}.button:hover:not(:disabled){transform:translateY(-2px);background:#fff}.button.primary{background:var(--accent);border-color:#c58e67}.button.primary:hover:not(:disabled){background:#ffc196}.activity-card .button{margin-top:auto;min-width:185px}.arrow{width:22px;height:22px;flex-shrink:0}.number-preview{display:grid;grid-template-columns:repeat(3,1fr);width:248px;gap:7px}.number-preview>span{height:75px;display:flex;align-items:center;justify-content:center;background:#fffefa;border:1.5px solid #bfc8b2;border-radius:12px;font-size:37px}.clock{font-family:Doodle,'Microsoft JhengHei',sans-serif;font-size:22px;width:100%;max-width:330px;overflow:visible}.clock-preview{width:200px}.footprints{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:30px 30px 8px}.footprints-left{display:flex;align-items:center;gap:30px}.footprints h2{font-size:24px}.footprints .metric{display:flex;align-items:center;gap:11px;white-space:nowrap;color:var(--muted)}.metric strong{font-size:30px;color:var(--ink)}.metric-icon{display:flex;align-items:center;justify-content:center;width:55px;height:55px;border-radius:50%;background:#fff0c9;color:#c7963e;font-size:32px}.metric-icon.heart{background:#fce9e8;color:#d88791}.footprints-note{display:flex;align-items:center;gap:18px;font-size:16px}.site-footer{text-align:center;font-size:15px;color:var(--muted);margin:25px 0 24px}.site-footer:before,.site-footer:after{content:'';display:inline-block;width:28px;border-top:1px solid #aaa49b;vertical-align:middle;margin:0 16px}.activity-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:10px 0 22px}.back-button{display:inline-flex;align-items:center;gap:10px;white-space:nowrap}.back-button .arrow{transform:rotate(180deg)}.tabs{display:flex;gap:10px}.tabs button{border-radius:20px;padding:9px 24px;background:#efebe5;font-weight:700}.tabs button[aria-current=page]{background:var(--accent)}.lesson-heading{text-align:center;position:relative;margin-bottom:24px}.lesson-heading h1{font-size:42px}.lesson-heading p{font-size:21px;margin-top:8px;padding:0 135px}.lesson-meta{position:absolute;right:0;top:6px;text-align:right;font-size:17px;color:var(--muted)}.lesson-meta strong{display:block;border-radius:22px;padding:5px 18px;background:var(--lavender);margin-bottom:10px;color:var(--ink)}.lesson-canvas{background:#fff;border:3px solid var(--peach);border-radius:28px;padding:30px 35px;min-height:386px}.equation{display:grid;grid-template-columns:minmax(0,1fr) 55px minmax(0,1fr) 55px 150px;align-items:center;gap:16px;max-width:1100px;margin:auto}.fish-group{padding:18px 16px;border-radius:22px;background:#fff1e5;min-height:210px;display:flex;align-content:center;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px}.fish-group.second{background:#e8f2fa}.fish-button{position:relative;padding:3px;border:2px solid transparent;border-radius:16px;min-width:50px;min-height:50px}.fish-button:hover{border-color:#c3b4a4}.fish-button.counted{border-color:#bd8c64;background:#ffffff9c}.count-label{position:absolute;right:-7px;top:-11px;background:#fffefa;border:1px solid #bd8c64;border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;font-size:17px}.operation{font-size:54px;text-align:center;font-family:system-ui}.answer-box{border:2px dashed #b0a399;border-radius:17px;min-height:140px;display:flex;align-items:center;justify-content:center;font-size:60px;color:#a3978b}.answer-box.done{color:var(--good);border-color:#83a88e;background:#edf6ee}.choices{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin:30px auto 0}.choice{width:102px;min-height:83px;display:flex;align-items:center;justify-content:center;border:2px solid #876c59;border-radius:17px;background:#fdf9f0;font-size:38px;font-weight:700}.choice:hover:not(:disabled){background:#fff0df}.choice[aria-pressed=true]{background:var(--accent);box-shadow:0 0 0 2px #71513d}.choice:disabled{opacity:1}.lesson-controls{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 5px;border-bottom:1px solid var(--line)}.feedback{text-align:center;flex:1;min-height:32px;color:var(--muted);font-size:19px}.feedback.success{color:var(--good);font-weight:700}.feedback.retry{color:#a45233}.lesson-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 0 0}.progress-wrap{display:flex;align-items:center;gap:20px}.progress-dots{display:flex;gap:9px;margin-bottom:7px}.progress-dots span{height:23px;width:23px;border:1.5px solid #b59b84;border-radius:50%}.progress-dots span.filled{background:var(--accent)}.progress-caption{font-size:15px;color:var(--muted)}.lesson-bottom .button{min-width:170px}.number-layout{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:36px;align-items:center;max-width:950px;margin:auto}.number-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:7px}.number-grid.small{grid-template-columns:repeat(5,1fr)}.number-cell{height:59px;display:flex;justify-content:center;align-items:center;border:1.5px solid #d1d8c8;border-radius:9px;background:#f8fbf5;font-size:31px;line-height:1}.number-cell.hidden{background:#fff;position:relative}.number-cell.active{outline:3px solid #75975e;outline-offset:0;background:#eef6e8}.number-cell.filled{color:var(--good);background:#e7f2e3}.number-question{text-align:center}.number-question h2{font-size:26px;margin-bottom:12px}.number-question p{font-size:17px}.number-question .choices{gap:10px;margin-top:18px}.number-question .choice{width:61px;min-height:58px;font-size:29px;border-color:#769066}.numbers .lesson-canvas{border-color:#d8e7cb}.numbers .tabs button[aria-current=page]{background:var(--sage)}.clock-lesson .lesson-canvas{border-color:#e2daf2}.clock-lesson .tabs button[aria-current=page]{background:var(--lavender)}.clock-layout{display:flex;align-items:center;justify-content:center;gap:80px}.clock-work{width:330px;flex-shrink:0}.clock-work svg{touch-action:none;cursor:grab;user-select:none}.clock-work svg:active{cursor:grabbing}.clock-task{max-width:340px;text-align:center}.clock-task h2{font-size:28px}.target-time{font-size:56px;font-weight:700;letter-spacing:3px;margin:6px 0 12px}.hand-legend{display:flex;gap:20px;justify-content:center;font-size:16px;color:var(--muted)}.legend-line{width:22px;border-top:5px solid #53a870;display:inline-block;vertical-align:middle;margin-right:6px;border-radius:8px}.legend-line.minute{border-color:#ef9b44}.time-selectors{display:flex;align-items:end;justify-content:center;gap:12px;margin:25px 0 12px}.time-selectors label{display:grid;gap:7px;text-align:left;font-size:16px}.time-selectors select{border:1.5px solid #c8bfd6;border-radius:12px;padding:8px 15px;background:#fff;min-height:48px;font-size:25px;min-width:105px}.clock-task .small-note{font-size:15px;max-width:300px;margin:auto}.clock-caption{text-align:center;font-size:16px;color:var(--muted);margin-top:10px}.count-help{font-size:17px;margin-top:13px;text-align:center;color:var(--muted)}dialog{border:1.5px solid var(--line);border-radius:26px;max-width:520px;width:calc(100% - 32px);padding:30px;color:var(--ink);background:var(--bg);box-shadow:0 20px 80px #49392f22}dialog::backdrop{background:#49392f55;backdrop-filter:blur(4px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:10px}.dialog-heading h2{font-size:29px}.close-button{font-size:32px;line-height:1;width:44px;height:44px;border-radius:50%;background:#efebe5}dialog label{display:grid;gap:8px;margin:20px 0;font-weight:700}dialog select{background:#fff;border:1px solid #cfc7ba;border-radius:12px;padding:10px 14px;min-height:48px;width:100%;font-size:18px}.small-note{font-size:14px;line-height:1.7;color:var(--muted);margin:17px 0}.full-width{width:100%}.sticker-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:25px 0}.sticker-item{display:flex;align-items:center;justify-content:center;flex-direction:column;min-height:145px;gap:8px;padding:8px;background:#fffefa;border:1px solid var(--line);border-radius:17px;text-align:center}.sticker-item.locked .art{filter:grayscale(1);opacity:.23}.sticker-item .art{max-width:100%}.sticker-item span:last-child{font-size:15px;color:var(--muted)}.reward-note{font-size:19px;color:var(--good);text-align:center}.storage-notice{font-size:14px;color:#a45233}.noscript{text-align:center;padding:30px}.saved-toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);z-index:20;background:#49392f;color:#fff;border-radius:24px;padding:12px 24px;box-shadow:0 8px 24px #49392f26}.reward-pop{animation:pop .35s ease-out}@keyframes pop{from{transform:scale(.97)}to{transform:scale(1)}}
@media(min-width:1450px){.intro{min-height:330px}.activity-card{min-height:450px}.card-art{height:220px}}
@media(max-width:1100px){.site-header{padding:16px 30px}.brand{font-size:24px}.site-header nav{gap:18px;font-size:16px}#app{padding:0 30px}.intro{padding:20px 12px;min-height:250px}.intro-art{width:285px;gap:10px}.intro-art .art:first-child{zoom:.85}.intro-art .rocket{zoom:.78}.intro p{font-size:18px}.activity-card{padding:22px 15px;min-height:390px}h3{font-size:25px}.activity-card p{font-size:16px}.card-art{height:180px}.fish-preview{zoom:.85}.number-preview{zoom:.82}.clock-preview{width:180px}.footprints{padding:25px 5px}.footprints-note{display:none}.footprints-left{justify-content:space-between;width:100%}.lesson-heading p{padding:0 135px 0 30px}.equation{grid-template-columns:minmax(0,1fr) 36px minmax(0,1fr) 36px 100px;gap:8px}.fish-group{min-height:200px;gap:4px;padding:12px 8px}.answer-box{min-height:100px;font-size:48px}.clock-layout{gap:40px}}
@media(max-width:760px){.site-header{padding:14px 20px;gap:10px;flex-wrap:wrap;justify-content:center}.brand{font-size:26px}.brand img{width:40px;height:40px}.site-header nav{width:100%;justify-content:center;gap:23px}.settings-button{padding:5px 12px}.settings-button span{font-size:20px}#app{padding:0 20px}.intro{padding:28px 3px 30px;gap:12px;min-height:235px}.intro h1{font-size:35px}.intro p{font-size:17px;max-width:310px}.intro-art{width:150px}.intro-art .art:first-child{zoom:.62}.intro-art .rocket{display:none}.activities{grid-template-columns:1fr;gap:16px}.activity-card{min-height:190px;display:grid;grid-template-columns:140px 1fr;text-align:left;padding:22px;column-gap:20px}.card-art{grid-row:1/4;height:150px;margin:0}.fish-preview{zoom:.55}.number-preview{zoom:.56}.clock-preview{width:133px}.activity-card h3{font-size:27px;align-self:end}.activity-card p{margin:2px 0 12px}.activity-card .button{min-width:0;min-height:44px;font-size:17px;padding:7px 18px;justify-self:start}.footprints{padding:25px 3px 0}.footprints-left{gap:12px;flex-wrap:wrap}.footprints h2{width:100%;font-size:23px}.metric-icon{width:42px;height:42px;font-size:26px}.metric strong{font-size:26px}.footprints .metric{font-size:16px;gap:9px}.site-footer{font-size:13px;margin-top:24px}.site-footer:before,.site-footer:after{width:16px;margin:0 10px}.activity-nav{display:block;margin-top:18px}.back-button{font-size:16px;margin-bottom:15px}.tabs{gap:7px;justify-content:center}.tabs button{padding:8px 13px;font-size:16px;border-radius:15px;flex:1;white-space:nowrap}.lesson-heading{margin-bottom:18px}.lesson-heading h1{font-size:34px}.lesson-heading p{font-size:17px;padding:0;line-height:1.7}.lesson-meta{position:static;display:flex;justify-content:center;align-items:center;gap:12px;margin-top:12px;font-size:15px}.lesson-meta strong{margin:0;padding:4px 13px}.lesson-canvas{padding:20px 16px;min-height:0;border-width:2px;border-radius:22px}.equation{grid-template-columns:minmax(0,1fr) 22px minmax(0,1fr);gap:7px}.fish-group{min-height:140px;border-radius:16px;padding:9px 4px;gap:3px}.fish-group .art{zoom:.8}.fish-button{padding:0;border-radius:11px;min-width:42px;min-height:44px}.operation{font-size:35px}.equation .equal{grid-column:2;grid-row:2}.answer-box{grid-column:3;grid-row:2;min-height:58px;font-size:35px;max-width:100px;justify-self:center;width:100%;margin-top:8px}.choices{gap:9px;margin-top:20px}.choice{width:52px;min-height:58px;border-radius:12px;font-size:29px}.lesson-controls{flex-wrap:wrap;gap:14px;padding:17px 0}.lesson-controls .button{min-height:46px;font-size:17px;padding:9px 18px}.feedback{order:3;flex-basis:100%;font-size:17px;min-height:28px}.lesson-bottom{gap:10px;align-items:center}.progress-wrap{gap:10px}.progress-wrap .art{zoom:.65}.progress-dots{gap:5px}.progress-dots span{width:18px;height:18px}.progress-caption{font-size:12px;max-width:165px}.lesson-bottom .button{min-width:100px;font-size:16px;padding:8px 16px;min-height:45px}.number-layout{display:block}.number-grid{gap:4px}.number-cell{height:46px;font-size:25px;border-radius:7px}.number-cell .art{zoom:.75}.number-question{margin-top:23px}.number-question h2{font-size:22px}.number-question .choices{margin-top:14px}.clock-layout{flex-direction:column;gap:18px}.clock-work{width:245px}.clock-task{max-width:100%;width:100%}.clock-task h2{font-size:24px}.target-time{font-size:40px;margin:2px 0 7px}.time-selectors{margin:13px 0}.clock-caption{margin-top:0;font-size:14px}.clock-task .small-note{max-width:100%;font-size:14px}.clock-task .hand-legend{font-size:14px}.clock-lesson .lesson-canvas{padding:20px 12px}.clock-task{display:flex;flex-direction:column}.clock-task .target-title{display:flex;justify-content:center;align-items:center;gap:12px;order:-2}.clock-task .hand-legend{order:-1}dialog{padding:24px}.dialog-heading h2{font-size:25px}.sticker-grid{gap:10px}.sticker-item{min-height:120px}.sticker-item .art{zoom:.8}}
@media(max-width:420px){.intro-art{display:none}.intro h1{font-size:36px}.intro p{max-width:100%}.intro{min-height:0;padding:28px 2px}.activity-card{grid-template-columns:110px 1fr;gap:12px;padding:18px;min-height:175px}.card-art{height:120px}.fish-preview{zoom:.45}.number-preview{zoom:.44}.clock-preview{width:108px}.activity-card h3{font-size:25px}.activity-card p{font-size:15px}.tabs button{font-size:14px;padding:8px 5px}.number-cell{height:41px;font-size:22px}.number-cell .art{zoom:.65}.lesson-heading h1{font-size:31px}.brand{font-size:25px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.art{mix-blend-mode:normal}.intro-art .rocket,.fish-preview .art{transform:none!important}.intro-art:before,.intro-art:after{display:none}.brand-picture{display:inline-block;width:53px;height:46px;background:url(./assets/sticker-sheet.jpg) no-repeat;background-size:254px auto;background-position:-152px -155px;flex-shrink:0}.locked-placeholder{width:82px;height:82px;border:2px dashed #cfc7ba;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#b5a99a;font-size:36px}.original-art{margin:22px 0 5px}.original-art summary{cursor:pointer;font-size:17px;color:#756353}.original-art img{display:block;width:100%;height:auto;margin-top:16px;border-radius:12px}.nav-spacer{width:120px}@media(max-width:760px){.nav-spacer{display:none}.clock-caption{max-width:240px;margin:auto}.brand-picture{width:46px;height:41px;background-size:222px auto;background-position:-133px -136px}}
.intro-art>.art{border-radius:22px}.fish-preview{background:white;border-radius:22px}.clock{border-radius:50%;overflow:hidden}.brand-picture{border-radius:10px}.number-preview .art,.number-cell .art{border-radius:8px}
@media(max-width:760px){.number-question .choices{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px}.number-question .choice{width:100%;min-width:0}}
@media(min-width:1101px){.site-header,#app{max-width:1505px}.brand{font-size:32px}.intro{min-height:300px}.intro h1{font-size:clamp(60px,5.2vw,74px)}.intro p{font-size:22px}.intro-art{width:420px}.activity-card{min-height:472px}.activity-card h3{font-size:clamp(30px,2.6vw,38px)}.activity-card p{font-size:20px}.lesson-heading h1{font-size:52px}.lesson-canvas{min-height:450px;padding:35px}.fish-group{min-height:260px}.choice{width:120px;min-height:95px;font-size:44px}.number-question .choice{width:61px;min-height:58px;font-size:29px}.clock-layout{min-height:365px}}

/* ZQ-WONDER portal integration */
:root{--ink:#254655;--muted:#687c83;--bg:#fffdf7}.wonder-brand>img{width:170px!important;height:auto!important}.portal-home-link{color:#1689aa}.site-header nav{gap:20px}@media(max-width:760px){.wonder-brand>img{width:140px!important}.site-header nav{gap:9px;font-size:13px;flex-wrap:wrap}}