:root{--paper:#f8f5ef;--white:#fffefa;--ink:#203c30;--muted:#66756b;--line:#dcded1;--orange:#c85f23;--orange-dark:#a84918;--soft:#edf0e6;--wind:#547fa2;--dry:#d69c2f;--sand:#92704f}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}a{color:inherit}button:focus-visible,a:focus-visible,textarea:focus-visible,svg [role=button]:focus-visible{outline:3px solid #2d6e84;outline-offset:4px}[hidden]{display:none!important}.site-header{padding:23px max(22px,calc((100vw - 1120px)/2));border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:20px;background:var(--white)}.brand{text-decoration:none;font-size:18px;font-weight:700;letter-spacing:.02em}.site-header>span{font-size:12px;color:var(--muted)}.modules{display:flex;gap:6px;max-width:1120px;margin:22px auto 0;border-bottom:1px solid var(--line);padding-bottom:10px}.modules a{display:flex;align-items:center;gap:10px;padding:13px 22px;text-decoration:none;font-size:15px;border-radius:8px;min-height:48px}.modules a span{font-size:11px;font-variant-numeric:tabular-nums;opacity:.7}.modules a[aria-current]{background:var(--ink);color:#fff}.modules a:not([aria-current]):hover{background:var(--soft)}main{max-width:1120px;margin:auto;padding:32px 0 34px}.page-intro{max-width:800px}.eyebrow{font-size:12px;font-weight:650;letter-spacing:.12em;color:var(--orange);margin:0 0 12px}h1{font-size:clamp(27px,3.5vw,38px);letter-spacing:-.035em;font-weight:650;margin:0 0 14px;line-height:1.4}.page-intro>p:last-child{font-size:14px;line-height:1.9;color:var(--muted);margin:0}.page-intro strong{color:var(--ink);font-weight:600}.steps{list-style:none;display:flex;padding:0;margin:28px 0;gap:6px;justify-content:space-between}.steps li{flex:1;min-width:0}.steps button{width:100%;border:0;border-top:3px solid var(--line);padding:14px 5px 8px;background:none;text-align:left;font-size:13px;color:var(--muted);display:flex;gap:9px;align-items:center;min-height:50px}.steps button b{font-size:11px;display:inline-grid;place-items:center;width:23px;height:23px;border:1px solid var(--line);border-radius:50%;flex:none}.steps button[aria-current]{color:var(--ink);border-color:var(--orange);font-weight:650}.steps button[aria-current] b{background:var(--orange);border-color:var(--orange);color:white}.steps button.done{border-color:#75927a}.task-head{display:flex;gap:12px;align-items:flex-start;justify-content:space-between;margin-bottom:18px}.task-head h2{font-size:23px;line-height:1.5;letter-spacing:-.025em;margin:0 0 8px}.task-head p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;max-width:760px}.task-head .task-number{font-size:13px;white-space:nowrap;color:var(--orange);padding-top:5px}.task-grid{display:grid;grid-template-columns:1.06fr 1fr;gap:22px;align-items:start}.panel{background:var(--white);border:1px solid var(--line);border-radius:15px;overflow:hidden;min-width:0}.panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:15px 18px}.panel-title h3{font-size:15px;margin:0;font-weight:650}.small-button{border:1px solid var(--line);background:none;color:var(--ink);border-radius:6px;padding:8px 12px;min-height:44px;font-size:12px}.small-button:hover{background:var(--soft)}.material-figure{margin:0;padding:15px}.material-image{display:block;width:100%;height:370px;object-fit:contain;background:#fff;cursor:zoom-in}.material-caption{font-size:11px;line-height:1.8;color:var(--muted);margin-top:12px}.question{padding:0 18px 18px}.question h4{font-size:14px;margin:0 0 8px}.question p{font-size:13px;line-height:1.8;color:var(--muted);margin:0}.map-wrap{padding:5px 8px 0}.selection-map{display:block;width:100%;height:auto;overflow:visible}.base-region{fill:#f1eee4;stroke:var(--white);stroke-width:1.15;stroke-linejoin:round}.map-region{cursor:pointer}.map-region:hover .base-region{fill:#e4e8dc}.map-region.picked .base-region{fill:#e8b482;stroke:#985b27;stroke-width:1.8}.map-region .region-dot{fill:var(--white);stroke:#8c998d;stroke-width:1.3}.map-region.picked .region-dot{fill:var(--orange);stroke:var(--white);stroke-width:1.7}.region-label{fill:var(--ink);font-size:11px;text-anchor:middle;paint-order:stroke;stroke:var(--white);stroke-width:3px;stroke-linejoin:round;pointer-events:none}.base-inset{fill:#ede9db;stroke:#72857b;stroke-width:.65}.map-inset-box{fill:none;stroke:var(--line);stroke-width:1}.map-note{fill:var(--muted);font-size:10px}.selection-count{font-size:12px;color:var(--orange);font-weight:600}.regions{display:grid;grid-template-columns:1fr 1fr;gap:7px;padding:0 15px 15px}.region-button{display:flex;justify-content:space-between;align-items:center;text-align:left;padding:10px 11px;border:1px solid var(--line);border-radius:7px;background:transparent;color:var(--ink);font-size:12px;min-height:44px;gap:6px}.region-button span:last-child{color:var(--muted);font-size:15px}.region-button[aria-pressed=true]{background:#faeddd;border-color:#b56c39}.region-button[aria-pressed=true] span:last-child{color:var(--orange)}.map-disclaimer{font-size:11px;line-height:1.8;color:var(--muted);margin:0;padding:0 16px 15px}.source-link{color:var(--muted);text-underline-offset:3px}.task-actions{display:flex;align-items:center;gap:12px;justify-content:space-between;padding-top:23px;margin-top:23px;border-top:1px solid var(--line)}.task-actions>div{display:flex;gap:9px;align-items:center}.primary,.secondary{min-height:48px;padding:12px 19px;font-size:14px;font-weight:650;border-radius:9px;border:1px solid transparent}.primary{background:var(--orange);color:white}.primary:hover:not(:disabled){background:var(--orange-dark)}.secondary{border-color:var(--line);color:var(--ink);background:transparent}.secondary:hover:not(:disabled){background:var(--soft)}.action-hint{font-size:12px;line-height:1.7;color:var(--muted);max-width:420px}.live{font-size:12px;line-height:1.8;color:var(--muted);min-height:22px;margin:12px 0 0}.session-note{font-size:11px;color:var(--muted);line-height:1.8;margin:24px 0 0}.layer-controls{display:grid;gap:9px;padding:16px}.layer-button{display:flex;align-items:center;gap:11px;background:none;border:1px solid var(--line);border-radius:8px;padding:12px;text-align:left;min-height:56px;color:var(--ink);font-size:13px}.layer-button[aria-pressed=true]{border-color:var(--ink);background:var(--soft)}.swatch{display:inline-block;width:13px;height:13px;border-radius:3px;flex:none}.layer-button small{display:block;font-size:11px;margin-top:5px;color:var(--muted);line-height:1.6}.layer-button .layer-label{flex:1}.layer-tick{font-size:17px;color:var(--muted)}.legend{display:flex;gap:14px;flex-wrap:wrap;padding:0 16px 14px;font-size:11px;color:var(--muted);line-height:1.8}.legend>span{display:flex;align-items:center;gap:6px}.intersection-info{border-top:1px solid var(--line);padding:15px 18px;font-size:13px;line-height:1.9}.intersection-info strong{display:block;font-size:14px;margin-bottom:6px}.intersection-info p{margin:0;color:var(--muted)}.reflection-panel{padding:18px;margin-top:20px;border:1px solid var(--line);border-radius:12px;background:var(--white)}.reflection-panel label{font-weight:650;font-size:15px;display:block;margin-bottom:9px}.reflection-panel p{font-size:13px;color:var(--muted);line-height:1.9;margin:0 0 12px}.reflection-panel textarea{width:100%;min-height:105px;resize:vertical;border:1px solid #bfc8ba;background:#fffefa;color:var(--ink);border-radius:7px;padding:13px;line-height:1.8;font-size:16px}.layer-fill{stroke:var(--white);stroke-width:.8}.overlap-region{stroke:var(--white);stroke-width:1.3}.overlap-label{font-size:10px;fill:var(--ink);text-anchor:middle;paint-order:stroke;stroke:var(--white);stroke-width:3px}.prediction-only .base-region{stroke:var(--white)}.feedback{margin-top:20px;padding:21px 23px;background:#eef0e5;border-left:3px solid #688369;border-radius:0 9px 9px 0}.feedback h3{font-size:17px;margin:0 0 12px}.feedback p,.feedback li{font-size:14px;line-height:1.9;margin:0}.feedback p+p{margin-top:10px}.feedback ul{padding-left:20px;margin:12px 0}.student-note{border-top:1px solid #cfd6c4;margin-top:15px;padding-top:15px}.student-note blockquote{margin:7px 0 0;font-size:14px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere}.completion-line{color:var(--orange);font-size:12px;margin:0 0 10px}.reset{border:0;background:transparent;color:var(--muted);text-decoration:underline;text-underline-offset:4px;min-height:44px;padding:10px;font-size:12px}footer{max-width:1120px;margin:0 auto;padding:20px 0 28px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:15px}dialog{border:1px solid var(--line);padding:0;background:var(--white);color:var(--ink);border-radius:13px;width:min(1100px,96vw);max-height:94dvh}dialog::backdrop{background:#15291ee0}.dialog-head{padding:12px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.dialog-head h2{font-size:15px;margin:0}.dialog-head button,.zoom-tools button{background:transparent;border:1px solid var(--line);color:var(--ink);border-radius:6px;min-height:44px;min-width:44px;font-size:14px}.dialog-head button{padding:8px 13px}.zoom-tools{display:flex;align-items:center;gap:12px;padding:8px 16px;font-size:12px}.zoom-tools>span:last-child{margin-left:auto;color:var(--muted);font-size:11px}.zoom-scroll{overflow:auto;max-height:72dvh;background:#fff;padding:12px;touch-action:pan-x pan-y pinch-zoom}.zoom-scroll img{display:block;width:100%;max-width:none;height:auto}.initial-note{padding:40px 0;color:var(--muted)}
@media(max-width:1180px){.modules{margin-left:24px;margin-right:24px}main{padding-left:24px;padding-right:24px}footer{margin:0 24px}}@media(max-width:760px){.site-header{padding:17px 20px}.brand{font-size:16px}.site-header>span{font-size:11px}.modules{margin:15px 18px 0;gap:5px}.modules a{padding:11px 13px;font-size:13px;flex:1;gap:7px;justify-content:center}main{padding:24px 18px 29px}h1{font-size:28px}.page-intro>p:last-child{font-size:13px}.steps{margin:22px 0;gap:4px}.steps button{flex-direction:column;align-items:flex-start;font-size:11px;gap:8px;padding:10px 3px}.steps button b{width:22px;height:22px}.task-head{gap:8px}.task-head h2{font-size:21px}.task-head p{font-size:13px}.task-number{font-size:11px!important}.task-grid{grid-template-columns:1fr;gap:16px}.material-image{height:auto;max-height:430px}.material-figure{padding:12px}.panel-title{padding:12px 14px}.panel-title h3{font-size:14px}.task-actions{align-items:stretch;flex-direction:column-reverse;gap:13px;padding-top:17px;margin-top:20px}.task-actions>div{display:grid;grid-template-columns:auto 1fr}.task-actions .action-hint{max-width:none;font-size:11px}.regions{gap:7px;padding:0 12px 13px}.region-button{font-size:12px}.map-wrap{padding:6px 0 0}.map-disclaimer{padding-left:12px;padding-right:12px}.feedback{padding:18px 16px}.feedback p,.feedback li,.student-note blockquote{font-size:13px}.reflection-panel{padding:15px}.layer-controls{padding:13px}.layer-button{padding:11px}.zoom-tools{gap:8px;padding:8px 12px}.zoom-tools>span:last-child{max-width:115px;line-height:1.5}footer{margin:0 18px;flex-direction:column;gap:7px}.session-note{font-size:11px}.map-region .region-label,.overlap-label{font-size:12px}.map-region .region-dot{r:5}.small-button{white-space:nowrap}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.back-link{display:inline-flex;align-items:center;gap:9px;min-height:44px;color:var(--ink);font-size:14px;text-decoration:none}.back-link:hover{text-decoration:underline;text-underline-offset:4px}.back-link svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* Four classroom inquiries share navigation; materials are supplied by the teacher. */
.distribution-page{max-width:960px;padding-top:36px}.distribution-page h1{letter-spacing:normal}.distribution-page .page-intro>p:last-child{font-size:16px;line-height:1.9}.disaster-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:28px 0 20px}.disaster-tabs button{min-height:48px;padding:12px 10px;border:1px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink);font-size:17px;line-height:1.5}.disaster-tabs button[aria-selected=true]{background:var(--ink);color:var(--white);border-color:var(--ink)}.distribution-panel{border:1px solid var(--line);border-radius:18px;background:var(--white);padding:30px}.distribution-panel h2{font-size:25px;line-height:1.5;font-weight:600;margin:0 0 16px}.material-status{display:inline-block;font-size:14px;line-height:1.6;color:#8b4b27;background:#f7eadf;padding:6px 12px;border-radius:6px;margin:0 0 16px}.inquiry-purpose{font-size:16px;line-height:1.9;color:var(--muted);margin:0 0 24px}.inquiry-outline{list-style:none;counter-reset:inquiry;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0;padding:20px 0 0;border-top:1px solid var(--line)}.inquiry-outline li{counter-increment:inquiry;font-size:15px;line-height:1.7}.inquiry-outline li::before{content:counter(inquiry,decimal-leading-zero);display:block;color:var(--orange-dark);font-size:13px;margin-bottom:6px}@media(max-width:600px){.distribution-page{padding-top:24px}.disaster-tabs{gap:8px;margin-top:24px}.disaster-tabs button{font-size:16px;padding:11px 6px}.distribution-panel{padding:24px 20px}.distribution-panel h2{font-size:23px}.inquiry-outline{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px}}
.flood-active{padding:24px}.flood-steps{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;margin:22px 0}.flood-steps li{min-width:0}.flood-steps span{display:flex;align-items:center;gap:8px;font-size:13px;line-height:1.7;color:var(--muted)}.flood-steps span[aria-current]{color:var(--ink);font-weight:600}.flood-steps span b{display:grid;place-items:center;flex:none;width:25px;height:25px;border-radius:50%;border:1px solid var(--line);font-size:12px}.flood-steps [aria-current] b{background:var(--ink);border-color:var(--ink);color:var(--white)}.flood-active .task-head h3{font-size:23px;line-height:1.6;margin:0;font-weight:600}.flood-note{font-size:15px;line-height:1.9;color:var(--muted);margin:0 0 20px}.flood-options{display:grid;gap:10px;margin:16px 0}.flood-options button{min-height:48px;text-align:left;font-size:15px}.flood-choice-note{margin-top:14px!important}.flood-summary{margin-top:0}.flood-limits{margin-top:20px;font-size:14px;line-height:1.9;color:var(--muted)}.flood-limits summary{cursor:pointer;min-height:44px;display:list-item;padding:10px 0}.flood-image-scroll{overflow:auto;max-height:78dvh;padding:12px}.flood-image-scroll img{display:block;max-width:none;width:max(100%,1000px);height:auto}@media(max-width:600px){.flood-active{padding:20px 12px}.flood-active>h2{padding:0 6px}.flood-steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px 4px;padding:0 4px}.flood-steps span{font-size:12px;gap:5px}.flood-active .task-head h3{font-size:20px}.flood-active .material-image{max-height:none}.flood-active .selection-map{height:auto}.flood-active .region-button{min-height:44px}.flood-active .task-actions>div{grid-template-columns:auto minmax(0,1fr)}.flood-active .task-actions button{font-size:13px;padding:12px 10px}}
/* Classroom flow: terrain first, two maps on one page, one prediction. */
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/* Flood inquiry uses distinct evidence questions and one final spatial judgement. */
.flood-reasoning-steps{grid-template-columns:repeat(5,minmax(0,1fr))}.flood-evidence-question,.flood-evidence-bank{padding:22px;border:1px solid var(--line);border-radius:12px;background:#f7f8f0;align-self:start}.flood-evidence-question h4,.flood-evidence-bank h4{font-size:18px;line-height:1.8;margin:0 0 14px}.flood-evidence-question .flood-options button{display:block;white-space:normal;line-height:1.9;text-align:left;padding:13px 15px;font-size:16px}.flood-evidence-question .flood-guide-feedback{font-size:15px;line-height:1.9}.flood-evidence-bank ol{margin:0;padding-left:22px}.flood-evidence-bank li{padding:5px 0 12px;font-size:16px;line-height:1.9}.flood-evidence-bank li:last-child{padding-bottom:0}.flood-evidence-bank p{color:var(--muted);font-size:15px;line-height:1.9;margin:6px 0 0}@media(max-width:600px){.flood-reasoning-steps{grid-template-columns:repeat(3,minmax(0,1fr))}.flood-evidence-question,.flood-evidence-bank{padding:20px 16px}.flood-evidence-question h4,.flood-evidence-bank h4{font-size:17px}}
/* Shared short inquiries and the teacher's spatial / temporal conclusions. */
.inquiry-three-steps{grid-template-columns:repeat(3,minmax(0,1fr))}.inquiry-material{padding:24px;border:1px solid var(--line);border-radius:12px;background:#f7f8f0;margin-bottom:24px}.inquiry-material>h3,.inquiry-season h3{font-size:19px;line-height:1.8;font-weight:600;margin:0 0 16px}.inquiry-flow{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:0 0 22px;padding:0}.inquiry-flow li{position:relative;border:1px solid #bdccba;border-radius:8px;padding:14px 12px;font-size:16px;line-height:1.8;background:var(--white)}.inquiry-flow li:not(:last-child)::after{content:'→';position:absolute;right:-20px;top:50%;transform:translateY(-50%);color:var(--orange-dark)}.inquiry-clues{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.inquiry-clues article{padding:14px 16px;background:var(--white);border-radius:8px}.inquiry-clues h4{font-size:16px;line-height:1.8;margin:0 0 7px}.inquiry-clues p,.inquiry-season>p{font-size:16px;line-height:1.9;color:var(--muted);margin:0}.inquiry-material-note{font-size:12px!important;line-height:1.8!important;color:var(--muted);margin:14px 0 0!important}.inquiry-question{padding:22px;border:1px solid var(--line);border-radius:12px;align-self:start;background:var(--white)}.inquiry-question h4{font-size:18px;line-height:1.8;margin:0 0 14px}.inquiry-question .region-button,.inquiry-season .region-button{display:block;font-size:16px;line-height:1.9;text-align:left;padding:13px 15px}.inquiry-question .flood-guide-feedback{font-size:15px;line-height:1.9}.inquiry-season{padding:22px;margin:24px 0 0;background:#f7f8f0;border:1px solid var(--line);border-radius:12px}.inquiry-season-strip{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:0;margin:18px 0 0}.inquiry-season-strip li{padding:12px 6px;line-height:1.7;font-size:16px;text-align:center;border:1px solid var(--line);border-radius:7px;background:var(--white);color:var(--muted)}.inquiry-season-strip li.season-active{background:#e7efe3;color:var(--ink);border-color:#8d9f85;font-weight:600}.classroom-conclusion{margin:0 0 24px;border:1px solid #a9b69d;border-radius:12px;overflow:hidden;background:#f3f6ec}.classroom-conclusion h3{font-size:21px;line-height:1.6;margin:0;padding:18px 22px;border-bottom:1px solid #c9d2bf;font-weight:600}.classroom-conclusion dl{margin:0}.classroom-conclusion dl>div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:18px;padding:17px 22px;font-size:17px;line-height:1.9}.classroom-conclusion dl>div+div{border-top:1px solid #d6ddce}.classroom-conclusion dt{color:var(--muted)}.classroom-conclusion dd{margin:0;font-weight:600}.inquiry-reference-map{height:auto}@media(max-width:600px){.inquiry-three-steps{grid-template-columns:repeat(3,minmax(0,1fr))}.inquiry-three-steps span{flex-direction:column;align-items:flex-start}.inquiry-material{padding:20px 16px}.inquiry-flow{grid-template-columns:1fr;gap:22px}.inquiry-flow li:not(:last-child)::after{content:'↓';right:50%;top:auto;bottom:-24px;transform:translateX(50%)}.inquiry-clues{grid-template-columns:1fr}.inquiry-question,.inquiry-season{padding:20px 16px}.inquiry-season-strip{gap:6px}.inquiry-season-strip li{font-size:15px}.classroom-conclusion h3{font-size:19px;padding:16px}.classroom-conclusion dl>div{grid-template-columns:76px minmax(0,1fr);gap:12px;font-size:16px;padding:16px}}
/* Teacher-provided cold-wave map: reading evidence before spatial and seasonal judgement. */
.coldwave-steps{grid-template-columns:repeat(4,minmax(0,1fr))}.coldwave-material{margin:0}.coldwave-map{display:block;width:100%;height:auto}.coldwave-map-caption{font-size:14px;line-height:1.8;color:var(--muted);margin:0;padding:12px 16px;border-top:1px solid var(--line)}.coldwave-questions{display:grid;gap:20px}.coldwave-evidence{padding:0 4px 18px}.coldwave-evidence h4{font-size:17px;margin:0 0 12px}.coldwave-evidence p{font-size:16px;line-height:1.9;margin:8px 0}.coldwave-season{margin:0 0 24px}.coldwave-season-strip{grid-template-columns:repeat(3,minmax(0,1fr))}.coldwave-reasoning h3{font-size:20px;margin:30px 0 18px;line-height:1.6}.coldwave-reasoning dl{margin:0}.coldwave-reasoning dl>div{display:grid;grid-template-columns:80px minmax(0,1fr);gap:18px;padding:16px 0;border-bottom:1px solid var(--line);font-size:16px;line-height:1.9}.coldwave-reasoning dt{font-weight:600}.coldwave-reasoning dd{margin:0;color:var(--muted)}.coldwave-reasoning>p{font-size:15px;line-height:1.9;color:var(--muted);margin:20px 0}#coldwave-dialog{width:min(96vw,1400px);max-height:92dvh;border:1px solid var(--line);border-radius:12px;background:var(--white);color:var(--ink);padding:0}#coldwave-dialog::backdrop{background:rgba(20,35,28,.6)}#coldwave-dialog img{max-width:none;width:1290px;height:auto}#coldwave-dialog .dialog-head h2{font-size:18px;line-height:1.6}
@media(max-width:600px){.coldwave-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.coldwave-reading{gap:20px}.coldwave-material .panel-title{padding:12px;gap:8px}.coldwave-material .small-button{min-height:44px;padding:8px 10px;white-space:nowrap}.coldwave-material .panel-title h3{font-size:15px;line-height:1.8}.coldwave-reasoning dl>div{grid-template-columns:64px minmax(0,1fr);gap:12px}}

/* Coldwave: students annotate the source map, without answer choices. */
.coldwave-drawing-task{margin-top:20px}.coldwave-drawing-task h4{font-family:var(--book-sans),sans-serif;font-size:19px;margin:0 0 10px}.sketch-task-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:8px 0 22px}.sketch-task-tabs button{display:flex;align-items:center;gap:14px;min-height:48px;text-align:left;padding:12px 16px;border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:6px}.sketch-task-tabs button[aria-pressed=true]{background:#e6e9d8;border-color:#626e4f;font-weight:600}.sketch-task-tabs span{font-size:12px;font-weight:400}.sketch-toolbar{padding:12px;background:#f6f2e8;border:1px solid var(--line);border-bottom:0;border-radius:8px 8px 0 0}.sketch-tools,.sketch-settings,.sketch-history,.sketch-colors{display:flex;align-items:center;flex-wrap:wrap;gap:7px}.sketch-settings{margin-top:10px;gap:12px}.sketch-toolbar button,.sketch-toolbar select{min-height:44px;border:1px solid #b9b5a3;border-radius:5px;background:#fffaf1;color:#293b2b;padding:8px 13px;font-size:14px}.sketch-toolbar button[aria-pressed=true]{border-color:#626e4f;background:#e6e9d8;box-shadow:inset 0 -3px #626e4f;font-weight:600}.sketch-toolbar button:hover:not(:disabled){background:#e6e9d8}.sketch-toolbar button:disabled{opacity:.45;cursor:default}.sketch-colors button{width:44px;padding:8px;display:grid;place-items:center}.sketch-colors span{display:block;background:var(--sketch-color);width:22px;height:22px;border-radius:50%}.sketch-settings label{display:flex;align-items:center;gap:7px;font-size:14px}.sketch-history{margin-left:auto}.sketch-stage{border:1px solid var(--line);background:#fff;overflow:auto;max-height:78dvh}.sketch-sheet{max-width:960px;margin:auto;min-width:0}.sketch-surface{display:block;width:100%!important;height:auto!important;fill:initial;stroke:none;touch-action:none;user-select:none;-webkit-user-select:none;overflow:hidden}.sketch-season{min-width:720px}.sketch-below{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:10px 0}.sketch-below p{margin:0 auto 0 0;font-size:14px;color:var(--muted);line-height:1.8}.sketch-help{font-size:13px;color:var(--muted);line-height:1.9;margin:4px 0 18px}.sketch-note-label{display:block;font-size:15px;margin:0 0 8px}.coldwave-drawing-task textarea{display:block;box-sizing:border-box;width:100%;max-width:100%;font:inherit;line-height:1.8;padding:12px;border:1px solid #b9b5a3;border-radius:5px;background:#fffaf1;color:#293b2b;resize:vertical}.coldwave-drawing-task textarea::placeholder{color:#606958}.coldwave-portfolio{margin:24px 0}.coldwave-portfolio details{padding:12px 0;border-top:1px solid var(--line)}.coldwave-portfolio summary{cursor:pointer;min-height:44px;line-height:1.9}.coldwave-portfolio .sketch-sheet{border:1px solid var(--line);overflow:auto}.sketch-expanded .sketch-stage{max-height:82dvh}.sketch-expanded .sketch-sheet{min-width:1000px;max-width:none}.sketch-expanded .sketch-season{min-width:1100px}.coldwave-drawing-task .coldwave-evidence{max-width:75ch;padding:0 0 16px}.coldwave-drawing-task button:focus-visible,.coldwave-drawing-task select:focus-visible,.coldwave-drawing-task textarea:focus-visible,.sketch-task-tabs button:focus-visible{outline:3px solid #a74723;outline-offset:3px}
@media(max-width:600px){.sketch-task-tabs{display:grid;grid-template-columns:1fr}.sketch-task-tabs button{justify-content:space-between}.sketch-toolbar{padding:10px}.sketch-tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.sketch-tools button{padding:8px 5px}.sketch-settings{gap:10px}.sketch-history{margin-left:0;width:100%}.sketch-history button{flex:1}.sketch-stage{max-height:70dvh}.sketch-season{min-width:760px}.sketch-below p{flex-basis:100%}.coldwave-drawing-task h4{font-size:17px}.sketch-task-tabs button,.sketch-toolbar button{touch-action:manipulation}}
.distribution-empty{min-height:180px;padding:28px}.distribution-empty #inquiry-title{font-family:var(--book-sans);font-size:22px;font-weight:600;margin:0 0 14px}.distribution-empty .initial-note{font-size:15px;color:var(--muted);line-height:1.9;margin:0}
.fieldbook-explore .disaster-tabs{grid-template-columns:repeat(5,minmax(0,1fr))}.fieldbook-explore .disaster-tabs button{white-space:nowrap}@media(max-width:600px){.fieldbook-explore .disaster-tabs{gap:6px}.fieldbook-explore .disaster-tabs button{font-size:14px;padding:11px 3px}}