:root{--cc-ink:#20312e;--cc-teal:#086b68;--cc-yellow:#ffe16a;--cc-line:#c8dad5;--cc-paper:#fffdf7;color:var(--cc-ink);background:var(--cc-paper);font-family:"Avenir Next",Avenir,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,select,summary{cursor:pointer}a{color:inherit;text-underline-offset:4px}button{min-height:46px;padding:11px 16px;border:1px solid var(--cc-line);border-radius:12px;background:#fff;color:var(--cc-ink);font-weight:750}button:hover:not(:disabled){border-color:var(--cc-teal);background:#eef8f3}button:disabled{opacity:.5;cursor:default}input,select{min-height:46px;border:1px solid #6a8c82;background:#fff;padding:10px 12px;border-radius:10px;color:var(--cc-ink);max-width:100%}h1,h2,h3,p{margin-top:0}p,li{line-height:1.65}img{display:block;max-width:100%;height:auto}[hidden]{display:none!important}:focus-visible{outline:3px solid 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0}.cc-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:24px}.cc-mini-card{min-width:0;border:1px solid var(--cc-line);border-radius:12px;padding:0 17px}.cc-mini-card summary{padding:17px 0;line-height:1.5}.cc-mini-card summary span{display:inline-block;margin-right:8px;font-weight:850;color:var(--cc-teal)}.cc-mini-card p{font-size:1rem}.cc-mini-card a{display:inline-block;padding-bottom:18px;font-weight:800;min-height:44px}.cc-teach{padding:36px;border-radius:24px;background:#fff1b6}.cc-teach>div:first-child{max-width:850px}.cc-teach-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;margin:30px 0 15px}.cc-teach-grid h3{font-size:1.2rem;margin:15px 0 10px}.cc-big-number{font-size:2rem;font-weight:800;color:#84660a}.cc-teach-grid p{font-size:1rem}.cc-guide-details details{border-top:1px solid #cfbd71;padding-block:8px}.cc-guide-details summary{padding-block:12px;font-size:1rem;font-weight:800;line-height:1.5}.cc-guide-details p,.cc-guide-details li{font-size:1rem}.cc-guide-details li{margin-bottom:10px}.cc-original-rules{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px}.cc-material{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);align-items:center;gap:55px;padding:65px 10px}.cc-material img{border-radius:20px}.cc-material a{display:inline-flex;min-height:48px;align-items:center;font-weight:800}.cc-footer{border-top:1px solid var(--cc-line);display:flex;justify-content:space-between;gap:20px;padding:25px 0 35px;font-size:.875rem;flex-wrap:wrap}.cc-footer a{min-height:44px}.cc-skip{position:fixed;top:-100px;left:16px;padding:15px;background:#fff;z-index:100}.cc-skip:focus{top:12px}@media(max-width:900px){.cc-stage{grid-template-columns:1fr}.cc-physical{display:grid;grid-template-columns:200px 1fr;gap:12px 20px;align-items:center}.cc-physical>.cc-eyebrow{grid-column:1/-1}.cc-physical>p:not(.cc-eyebrow){margin:0}.cc-physical>.cc-choice{grid-column:1/-1}.cc-step{display:block}.cc-step>div{margin-top:16px}.cc-teach-grid{gap:18px}.cc-toolbar{gap:15px}.cc-random{margin-left:0}}@media(max-width:600px){.cc-page{width:calc(100% - 28px)}.cc-heading{padding-top:28px}.cc-heading h1{font-size:3.6rem}.cc-paths{gap:8px}.cc-paths a{font-size:.875rem;gap:12px}.cc-workspace{padding:16px;border-radius:18px}.cc-toolbar>div{width:100%}.cc-toolbar select{width:100%}.cc-number-row input{width:78px}.cc-number-row button{flex:1}.cc-random{width:100%}.cc-stage{gap:25px}.cc-question{padding:23px 20px}.cc-question h2{font-size:1.95rem}.cc-physical{grid-template-columns:1fr}.cc-physical>a{max-width:350px}.cc-round{padding:18px}.cc-turns{grid-template-columns:repeat(2,minmax(0,1fr))}.cc-step>div{flex-wrap:wrap}.cc-step>div button{flex:1}.cc-card-grid,.cc-teach-grid,.cc-material,.cc-original-rules{grid-template-columns:1fr}.cc-all-cards{padding:0 16px}.cc-teach{padding:26px 22px}.cc-teach-grid{gap:6px}.cc-material{padding:40px 0;gap:30px}.cc-material img{max-width:350px}.cc-library{padding-block:38px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.cc-paths,.cc-toolbar,.cc-round,.cc-speech,.cc-library,.cc-footer,.cc-picker-status{display:none!important}.cc-stage,.cc-material{display:block}.cc-question,.cc-teach,.cc-workspace{box-shadow:none;background:white}.cc-physical{display:none}.cc-page{width:100%}}
.cc-voice-settings{width:100%;min-width:0;margin:4px 0 10px}.cc-voice-settings summary{font-size:.875rem;font-weight:750;line-height:1.5;padding:12px 0;min-height:44px}.cc-voice-options{display:flex;flex-wrap:wrap;gap:12px;padding:4px 0 12px}.cc-voice-options label{display:block;font-size:.875rem;font-weight:750;min-width:0;flex:1 1 160px}.cc-voice-options select{display:block;width:100%;margin-top:6px;font-size:1rem}
/* Progressive disclosure: the question and the next turn come before reference material. */
.cc-heading{padding:24px 0 18px}.cc-heading h1{font-size:clamp(2rem,4vw,3rem);letter-spacing:-.045em;margin-bottom:10px}.cc-heading .cc-eyebrow{margin-bottom:8px}.cc-heading>p:last-child{font-size:1rem}.cc-paths{margin-bottom:20px;gap:8px}.cc-paths a{font-size:.875rem;padding:10px 14px;gap:12px}.cc-toolbar{gap:14px}.cc-topic-filter{position:relative;min-width:0}.cc-topic-filter summary{min-height:46px;padding:12px 8px;font-size:.9375rem;font-weight:750}.cc-topic-filter[open]{flex-basis:100%}.cc-topic-filter select{width:min(100%,360px)}.cc-topic-filter label{margin-top:8px}.cc-main{min-width:0}.cc-question{padding:26px}.cc-question-top{margin-bottom:16px}.cc-question h2{font-size:clamp(1.7rem,2.8vw,2.25rem);margin-bottom:18px}.cc-speech [data-cc-listen]{background:var(--cc-teal);color:white;border-color:var(--cc-teal)}.cc-speech [data-cc-listen]:hover{background:#075350}.cc-speech [data-cc-stop]:disabled{display:none}.cc-speech-status:empty,.cc-picker-status:empty{display:none}.cc-voice-settings{margin-bottom:2px}.cc-voice-settings summary{font-weight:600}.cc-help-group{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.cc-help{flex:1 1 130px;min-width:0;border:1px solid var(--cc-line);border-radius:10px;padding:0 12px;background:#f5faf7}.cc-help summary{font-size:.9375rem;padding:12px 0}.cc-help[open]{flex-basis:100%}.cc-sensitive{margin-top:14px}.cc-round{margin-top:18px;padding:18px}.cc-round-heading h3{font-size:1.0625rem}.cc-round-heading p{margin-bottom:8px}.cc-turns{gap:6px;margin-bottom:12px}.cc-turns li{padding:8px;font-size:.875rem;gap:6px}.cc-step{display:block}.cc-step>div{margin-top:14px;flex-wrap:wrap}.cc-step p{font-size:1rem}.cc-round-note{margin-top:14px}.cc-physical-help summary{padding:12px 0;min-height:44px;font-size:.9375rem;font-weight:750}.cc-physical-help p{font-size:.9375rem}.cc-library{padding-block:28px}.cc-section-heading h2{font-size:1.35rem;margin-bottom:12px}.cc-teach{padding:0 24px;border-radius:16px}.cc-section-fold>summary{padding:22px 0;font-size:1.2rem;font-weight:800;line-height:1.4}.cc-section-fold>summary span{display:block;margin:6px 0 0;font-size:.9375rem;font-weight:400}.cc-fold-body{padding:12px 0 20px}.cc-teach h2{font-size:1.7rem}.cc-material{display:block;padding:0 24px;margin:16px 0 28px;border:1px solid var(--cc-line);border-radius:16px;background:white}.cc-material-body{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:30px;align-items:center;padding:12px 0 22px}.cc-material h2{font-size:1.7rem}
@media(max-width:900px){.cc-physical-help{grid-column:1/-1}.cc-step>div{margin-top:14px}}
@media(max-width:600px){.cc-heading h1{font-size:2rem}.cc-heading{padding-top:20px}.cc-question{padding:20px 16px}.cc-question h2{font-size:1.8rem}.cc-turns{grid-template-columns:repeat(2,minmax(0,1fr))}.cc-round{padding:16px}.cc-material-body{grid-template-columns:1fr;gap:20px}.cc-teach,.cc-material{padding-inline:18px}.cc-topic-filter{width:100%}.cc-help{flex-basis:100%}.cc-stage{gap:22px}.cc-physical img{max-width:300px}}
@media(max-width:600px){.cc-topic-filter{width:auto;flex:1 1 110px}.cc-topic-filter[open]{flex-basis:100%}.cc-toolbar>.cc-random{width:auto;flex:1 1 130px;margin:0;font-size:.9375rem}.cc-heading h1{font-size:clamp(1.5rem,6vw,2rem)}}
.cc-step>[data-cc-builder-slot]{display:block;width:100%}.cc-builder{width:100%;border:1px solid #b3d3c7;border-radius:12px;background:#f2faf6}.cc-builder>summary{padding:14px;font-weight:800;line-height:1.5;min-height:48px}.cc-builder>summary span{font-weight:400;font-size:.875rem;margin-left:8px;color:#496057}.cc-builder-body{padding:0 14px 16px;min-width:0}.cc-builder-body>p{font-size:.9375rem;margin:0 0 12px}.cc-builder-answer{display:flex;flex-wrap:wrap;gap:6px;list-style:none;min-height:96px;border:2px dashed #82ad9d;background:white;border-radius:12px;padding:12px;margin:0 0 16px;align-content:start}.cc-builder-answer li{max-width:100%}.cc-builder-answer button{background:#e1f2eb;border-color:#87b6a3;min-height:44px;padding:8px 10px;font-size:1rem;overflow-wrap:anywhere}.cc-builder-empty{font-size:1rem;color:#53675c;padding:10px 0}.cc-builder-bank{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.cc-builder-bank button{min-height:44px;padding:8px 12px;font-size:1rem;font-weight:700;background:#fff5cc;border-color:#d8c676}.cc-builder-actions{display:flex;flex-wrap:wrap;gap:8px}.cc-builder-actions button{font-size:.9375rem}.cc-builder-body .cc-builder-feedback{margin:14px 0 0;line-height:1.6;font-size:1rem;max-width:none}.cc-builder-feedback[data-kind="verified"]{border-left:4px solid #287251;padding:10px;background:#e4f5e9}.cc-builder-feedback[data-kind="hint"],.cc-builder-feedback[data-kind="unconfirmed"]{border-left:4px solid #b5891c;padding:10px;background:#fff5cf}.cc-builder-body small{display:block;font-size:.875rem;line-height:1.5;color:#496057;margin-top:14px}.cc-builder-feedback:empty{display:none}@media(max-width:600px){.cc-builder-actions button{flex:1 1 calc(50% - 8px)}.cc-builder-body{padding:0 10px 12px}}
.cc-builder-answer button[aria-pressed="true"]{background:var(--cc-teal);color:white;border-color:var(--cc-teal);box-shadow:0 0 0 2px #ffe16a}.cc-builder-editor{border:1px solid #87b6a3;border-radius:12px;background:white;padding:12px;margin:-4px 0 16px}.cc-builder-editor p{font-size:1rem;margin:0 0 10px;line-height:1.5}.cc-builder-edit-actions{display:flex;flex-wrap:wrap;gap:8px}.cc-builder-edit-actions button{min-height:44px;font-size:.875rem;padding:8px 10px}.cc-builder-edit-actions button[aria-pressed="true"]{background:var(--cc-teal);border-color:var(--cc-teal);color:white}@media(max-width:600px){.cc-builder-edit-actions button{flex:1 1 calc(50% - 8px)}}