.activity-corner { width: calc(100% - 70px); max-width: 1200px; margin: 0 auto; padding: 56px 0 65px; }
.activity-heading-row { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin-bottom: 32px; }
.activity-page-title { margin-bottom: 16px; font-size: clamp(36px, 4.2vw, 49px); line-height: 1.2; letter-spacing: -1.8px; }
.activity-heading-dot { color: #ce9b4c; }
.activity-intro { color: #647268; font-size: 17px; line-height: 1.7; margin: 0; }
.activity-print-note { display: flex; align-items: center; gap: 14px; padding: 16px 23px; border: 1px solid #e5e9df; border-radius: 17px; color: #76816e; font-size: 12px; line-height: 1.65; background: #fafbf4; }
.activity-print-note > svg { width: 27px; height: 27px; color: #6e8360; }
.activity-print-note strong { color: #4d6352; font-weight: 700; }
.activity-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 25px; }
.activity-filters { display: flex; gap: 8px; flex-wrap: wrap; }
.activity-filter { border: 1px solid #e1e5dc; background: #fffefb; border-radius: 100px; padding: 11px 22px; min-height: 44px; font: inherit; font-size: 13px; font-weight: 800; color: #637266; cursor: pointer; transition: background .2s, color .2s, transform .2s; }
.activity-filter:hover { background: #ecf2e7; }
.activity-filter.is-active { color: #fff; background: var(--green, #286744); border-color: var(--green, #286744); }
.activity-filter:focus-visible, .activity-preview:focus-visible, .activity-download:focus-visible, .worksheet-close:focus-visible, .worksheet-pagination button:focus-visible { outline: 3px solid #916fae; outline-offset: 4px; }
.activity-count { color: #6c7561; white-space: nowrap; font-size: 12px; font-weight: 700; }
.activity-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.activity-card { background: #fff; border: 1px solid #e9e9e0; border-radius: 20px; overflow: hidden; box-shadow: 0 4px 1px #273d2c02; transition: transform .2s, box-shadow .2s; }
.activity-card:hover { transform: translateY(-4px); box-shadow: 0 9px 22px #334c3510; }
.activity-preview { width: 100%; height: 213px; position: relative; padding: 21px 28px 0; overflow: hidden; border: 0; display: flex; justify-content: center; cursor: pointer; }
.activity-tone-peach { background: #fae9d7; }.activity-tone-blue { background: #e0edf2; }.activity-tone-lilac { background: #ede7f4; }.activity-tone-sage { background: #e8eddd; }.activity-tone-pink { background: #f6e3df; }.activity-tone-yellow { background: #f7efd4; }
.activity-sheet { display: block; width: 147px; flex-shrink: 0; transform: rotate(-5deg); transform-origin: center bottom; background: #fff; box-shadow: 2px 5px 14px #3b42241a; transition: transform .25s; }
.activity-card:nth-child(even) .activity-sheet { transform: rotate(5deg); }
.activity-preview:hover .activity-sheet { transform: rotate(0) translateY(-4px); }
.activity-sheet > svg { display: block; height: auto; width: 100%; }
.activity-preview-badge { position: absolute; top: 13px; left: 13px; border-radius: 7px; padding: 4px 8px; background: #fffdf2f0; color: #6c7566; font-family: inherit; font-size: 10px; font-weight: 800; }
.activity-preview-hint { position: absolute; bottom: 12px; right: 12px; border-radius: 100px; padding: 7px 10px; background: #fffefbf0; color: #465e49; font: 700 10px var(--body-font, 'Nunito', sans-serif); box-shadow: 0 2px 5px #00000008; }
.activity-card-copy { padding: 19px 19px 16px; }
.activity-card-label { color: #6b755e; text-transform: uppercase; font-size: 9px; letter-spacing: 1.35px; font-weight: 800; margin: 0 0 7px; }
.activity-card h3 { color: var(--ink, #233d35); font-size: 16px; line-height: 1.3; font-weight: 800; letter-spacing: -.35px; margin: 0 0 15px; min-height: 42px; }
.activity-download { min-height: 44px; display: flex; gap: 8px; align-items: center; width: 100%; padding: 11px 0 0; background: none; border: 0; border-top: 1px solid #edf0e8; font: 800 12px var(--body-font, 'Nunito', sans-serif); color: #42694c; cursor: pointer; text-align: left; }
.activity-download > span { margin-left: auto; font-size: 17px; }
.activity-download:hover { color: #224932; }
.activity-pack { display: flex; align-items: center; position: relative; gap: 55px; padding: 38px 65px; min-height: 288px; margin-top: 45px; border-radius: 26px; background: #f0f1df; overflow: hidden; border: 1px solid #e7e9d8; }
.activity-pack-art { width: 230px; height: 240px; flex-shrink: 0; position: relative; }
.activity-pack-sheet { position: absolute; width: 155px; left: 21px; top: 15px; transform: rotate(-9deg); background: white; box-shadow: 2px 8px 18px #52553520; }
.activity-pack-sheet > svg { width: 100%; height: auto; display: block; }
.activity-pack-sheet-back { left: 57px; top: 5px; transform: rotate(10deg); }
.activity-pack-sticker { position: absolute; right: 1px; bottom: 4px; width: 73px; height: 73px; display: grid; align-content: center; text-align: center; border-radius: 50%; transform: rotate(12deg); background: #dcae51; color: #fffdf6; border: 3px solid #f9e2a5; box-shadow: 0 3px 5px #43390015; font-size: 13px; font-weight: 900; line-height: 1.2; }
.activity-pack-copy { position: relative; z-index: 1; }
.activity-pack-copy .eyebrow { font-size: 9px; letter-spacing: 1.7px; color: #6b8053; margin: 0 0 10px; }
.activity-pack-copy h3 { font-size: clamp(22px, 2.6vw, 32px); line-height: 1.2; letter-spacing: -.8px; font-weight: 900; margin: 0 0 12px; color: #304b34; }
.activity-pack-copy > p:not(.eyebrow) { color: #626e58; font-size: 13px; line-height: 1.65; margin: 0 0 17px; }
.activity-pack-copy .btn { display: inline-flex; gap: 9px; align-items: center; font-size: 12px; min-height: 46px; }
.activity-pack-detail { display: block; margin: 10px 0 0; font-size: 10px; color: #657054; }
.activity-pack-flower { position: absolute; font-size: 150px; right: 15px; top: -28px; color: #dce0bd; line-height: 1; transform: rotate(18deg); }
.worksheet-dialog { padding: 0; width: min(1000px, calc(100vw - 36px)); max-width: 1000px; max-height: calc(100dvh - 36px); border: 0; border-radius: 25px; color: #233d35; background: #fffdf7; box-shadow: 0 18px 80px #17332645; }
.worksheet-dialog::backdrop { background: #163b2d80; backdrop-filter: blur(5px); }
.worksheet-dialog-inner { overflow: hidden; }
.worksheet-dialog-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; padding: 24px 28px 21px; border-bottom: 1px solid #e6e9df; }
.worksheet-dialog-header .eyebrow { margin: 0 0 7px; font-size: 9px; }
.worksheet-dialog-header h3 { font-size: 23px; line-height: 1.3; margin: 0; font-weight: 900; letter-spacing: -.5px; }
.worksheet-close { background: #eef1e8; border: 0; color: #405d48; border-radius: 50%; font: 26px/1 'Nunito', sans-serif; width: 44px; height: 44px; flex-shrink: 0; cursor: pointer; }
.worksheet-close:hover { background: #e3e9d8; }
.worksheet-dialog-body { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(260px, 1fr); }
.worksheet-exercise-choices { padding: 12px 24px 16px; background: #f3f7ee; border-bottom: 1px solid #d9e1ce; }
.worksheet-exercise-choices[hidden] { display: none; }
.worksheet-exercise-choices p { margin: 0 0 10px; font-weight: 800; }
.worksheet-exercise-choices button:focus-visible { outline: 3px solid #916fae; outline-offset: 3px; }
.worksheet-exercise-choices .worksheet-exercise-page { margin: 12px 0 0; font-size: 14px; font-weight: 600; }
.worksheet-preview { background: #edf0e5; padding: 28px; display: flex; align-items: flex-start; justify-content: center; min-width: 0; }
.worksheet-preview > svg { display: block; width: 100%; max-height: 540px; height: auto; filter: drop-shadow(0 4px 5px #23433112); }
.worksheet-options { padding: 36px 30px; }
.worksheet-free-tag { display: inline-block; background: #f6ebce; color: #8a7138; padding: 6px 10px; border-radius: 6px; font-size: 10px; font-weight: 800; }
.worksheet-options h4 { font-size: 25px; margin: 19px 0 10px; line-height: 1.2; font-weight: 900; }
.worksheet-description { font-size: 14px; color: #64715a; line-height: 1.7; }
.worksheet-options ul { padding: 0 0 0 19px; margin: 21px 0; font-size: 13px; color: #5f725f; line-height: 2; }
.worksheet-options .btn { display: flex; justify-content: center; align-items: center; gap: 9px; min-height: 47px; width: 100%; margin-top: 10px; font-size: 13px; }
.worksheet-format { color: #627257; font-size: 11px; line-height: 1.65; margin: 14px 0; }
.worksheet-pagination { display: flex; align-items: center; justify-content: center; gap: 16px; padding-top: 10px; }
.worksheet-pagination[hidden] { display: none; }
.worksheet-pagination button { border: 1px solid #d9e1ce; color: #436445; background: #f5f7ee; border-radius: 50%; width: 44px; height: 44px; font-size: 22px; cursor: pointer; }
.worksheet-pagination button:disabled { opacity: .35; cursor: default; }
.worksheet-page-count { font-size: 12px; font-weight: 800; }
.worksheet-status { min-height: 18px; font-size: 12px; color: #426847; line-height: 1.55; margin: 13px 0 0; }
@media (max-width: 1000px) {
  .activity-grid { gap: 16px; }
  .activity-card-copy { padding: 17px 14px 13px; }
  .activity-card h3 { font-size: 14px; }
  .activity-preview { height: 194px; padding-inline: 12px; }
  .activity-sheet { width: 133px; }
  .activity-download { font-size: 11px; gap: 5px; }
  .activity-pack { gap: 24px; padding: 30px 35px; }
}
@media (max-width: 760px) {
  .activity-corner { width: calc(100% - 44px); padding: 38px 0 45px; }
  .activity-heading-row { margin-bottom: 24px; }
  .activity-print-note { display: none; }
  .activity-intro { font-size: 14px; }
  .activity-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
  .activity-filter { font-size: 12px; padding: 10px 16px; }
  .activity-count { display: none; }
  .activity-preview { height: 232px; padding-top: 25px; }
  .activity-sheet { width: 162px; }
  .activity-card h3 { font-size: 16px; min-height: 42px; }
  .activity-card-copy { padding: 18px; }
  .activity-download { font-size: 12px; }
  .activity-pack { padding: 25px; gap: 25px; }
  .activity-pack-art { width: 175px; transform: scale(.85); transform-origin: center; margin-left: -18px; }
  .activity-pack-copy h3 { font-size: 24px; }
  .activity-pack-sticker { right: -21px; }
  .activity-pack-flower { font-size: 100px; }
  .worksheet-dialog-header { padding: 22px; }
  .worksheet-dialog-header h3 { font-size: 20px; }
  .worksheet-dialog-body { grid-template-columns: minmax(0, 1fr) minmax(230px, 1fr); }
  .worksheet-preview { padding: 20px; }
  .worksheet-options { padding: 24px 20px; }
}
@media (max-width: 540px) {
  .activity-filters { gap: 6px; }
  .activity-filter { font-size: 11px; padding-inline: 12px; }
  .activity-grid { gap: 12px; }
  .activity-preview { height: 181px; padding: 21px 10px 0; }
  .activity-sheet { width: 126px; }
  .activity-preview-badge { top: 9px; left: 9px; font-size: 9px; }
  .activity-preview-hint { font-size: 9px; padding: 6px 8px; right: 8px; }
  .activity-card-copy { padding: 15px 12px 12px; }
  .activity-card h3 { font-size: 14px; min-height: 37px; }
  .activity-card-label { font-size: 8px; letter-spacing: .9px; }
  .activity-download { gap: 5px; font-size: 10px; }
  .activity-download > svg { width: 14px; }
  .activity-download > span { font-size: 14px; }
  .activity-pack { flex-direction: column; text-align: center; gap: 6px; padding: 22px 23px 31px; margin-top: 27px; }
  .activity-pack-art { width: 210px; margin: 0; transform: scale(.87); height: 211px; }
  .activity-pack-sticker { right: 0; bottom: -13px; }
  .activity-pack-copy h3 { font-size: 25px; }
  .activity-pack-copy .eyebrow { font-size: 8px; }
  .worksheet-dialog { width: calc(100vw - 20px); max-height: calc(100dvh - 20px); border-radius: 18px; }
  .worksheet-dialog-header { padding: 20px 16px; gap: 10px; }
  .worksheet-dialog-header h3 { font-size: 19px; }
  .worksheet-dialog-header .eyebrow { font-size: 8px; }
  .worksheet-dialog-body { grid-template-columns: 1fr; }
  .worksheet-preview { padding: 20px; }
  .worksheet-preview > svg { max-height: 330px; }
  .worksheet-options { padding: 23px; }
  .worksheet-options h4 { margin-top: 13px; }
  .worksheet-options ul { margin: 13px 0; }
}
@media (prefers-reduced-motion: reduce) {
  .activity-card, .activity-sheet, .activity-filter { transition: none; }
  .activity-card:hover, .activity-preview:hover .activity-sheet { transform: none; }
}
.activity-together-tip{margin:-8px 0 28px;padding:16px 20px;border-left:4px solid #c3d5ae;border-radius:0 12px 12px 0;background:#f3f6ec;color:#52654d;font-size:14px;line-height:1.7}
.activity-together-tip strong{color:#304d36}
.activity-toolbar{align-items:flex-start}
.activity-filters{flex:1}
.activity-count{padding-top:14px}
.activity-card{display:flex;flex-direction:column}
.activity-preview{flex-shrink:0}
.activity-card-copy{display:flex;flex-direction:column;flex:1}
.activity-card .activity-card-description{font-size:12px;line-height:1.6;color:#596b5b;margin:-4px 0 16px}
.activity-card .activity-download{margin-top:auto}
.worksheet-grownup{margin:18px 0;padding:15px;border-radius:12px;background:#f0f4e9}
.worksheet-grownup h5{margin:0 0 7px;font-size:13px;color:#304d36}
.worksheet-grownup p{font-size:12px;color:#52654d;line-height:1.65}
.worksheet-options .worksheet-listen{width:auto;min-height:48px;padding-inline:18px}
@media(max-width:540px){.activity-together-tip{font-size:12px;padding:13px 15px}.activity-card .activity-card-description{font-size:11px}.activity-toolbar{margin-bottom:20px}}
.activity-topic-section{margin:32px 0 44px}
.activity-topic-heading{margin-bottom:20px}
.activity-topic-heading h2,.activity-library-heading{font-size:26px;letter-spacing:-.7px}
.activity-topic-heading p{font-size:14px;margin-top:9px;color:#60735f}
.activity-topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.activity-learning-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.activity-learning-grid .activity-topic-card{min-height:112px}
.activity-learning-grid .activity-topic-art{width:42px}
.activity-section-count{display:block;margin-top:8px;font-size:11px;font-weight:800;color:#365a41}
.activity-section-note{margin-top:14px;font-size:12px;color:#60735f;line-height:1.6}
.activity-section-description{margin:-12px 0 22px;font-size:14px;line-height:1.6;color:#60735f}
.activity-tracing-packs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0 0}
.activity-tracing-pack{display:flex;align-items:center;gap:16px;padding:18px 20px;border:1px solid #dce4d4;border-radius:16px;background:#fffefb;color:#304d36;text-align:left;font:inherit;cursor:pointer}
.activity-tracing-pack:hover{background:#f4f6ed;border-color:#387553}
.activity-tracing-pack:focus-visible{outline:3px solid #3768b6;outline-offset:4px}
.activity-tracing-pack .tracing-pack-symbol{display:grid;place-items:center;flex:0 0 54px;height:54px;border-radius:12px;background:#edf0fa;font-size:25px;font-weight:800}
.activity-tracing-pack strong{display:block;font-size:16px;line-height:1.4}
.activity-tracing-pack small{display:block;font-size:12px;line-height:1.6;color:#52654d;margin-top:4px}
.activity-tracing-pack .tracing-pack-arrow{margin-left:auto;font-size:22px}
.activity-tracing-hint{margin:12px 0 0;font-size:12px;color:#60735f}
@media(max-width:700px){.activity-tracing-packs{grid-template-columns:1fr}.activity-tracing-pack{padding:16px;gap:12px}}
.worksheet-options .worksheet-stage{font-size:12px;font-weight:800;color:#426044;margin:0 0 12px}
.activity-topic-card{display:flex;align-items:center;gap:12px;text-align:left;min-width:0;min-height:120px;padding:18px 15px;border:1px solid #dce4d4;border-radius:18px;background:var(--topic-tint);font:inherit;color:#2d4839;cursor:pointer}
.activity-topic-card:hover,.activity-topic-card[aria-pressed=true]{border-color:#387553;box-shadow:0 0 0 2px #38755325}
.activity-topic-card:focus-visible,.activity-topic-controls select:focus-visible,.activity-reset:focus-visible{outline:3px solid #3768b6;outline-offset:4px}
.activity-topic-art{display:block;flex-shrink:0;width:56px}.activity-topic-art svg{width:100%;height:auto}
.activity-topic-card strong{display:block;font-size:15px;line-height:1.4;letter-spacing:-.3px}
.activity-topic-card small{display:block;font-size:11px;line-height:1.55;margin-top:5px;color:#506249}
.activity-topic-arrow{align-self:flex-start;margin-left:auto;font-size:19px}
.activity-library-heading{scroll-margin-top:28px;margin-bottom:22px}
.activity-topic-controls{display:flex;flex-wrap:wrap;align-items:flex-end;gap:18px;margin-bottom:20px}
.activity-topic-controls label{font-size:13px;font-weight:800;color:#405a45}
.activity-topic-controls select{display:block;min-height:48px;min-width:240px;max-width:100%;padding:10px 36px 10px 12px;margin-top:7px;border:1px solid #bacbb2;background:#fffefb;color:#304d36;border-radius:12px;font:inherit}
.activity-reset{min-height:48px;border:0;background:transparent;text-decoration:underline;color:#326746;font:700 13px var(--font);padding:10px 8px}
.activity-reset:disabled{color:#73806d;text-decoration:none;cursor:default}
.activity-topic-controls .activity-count{display:block;margin-left:auto;padding:0;min-height:48px;line-height:48px}
.activity-empty{grid-column:1/-1;padding:36px 26px;text-align:center;background:#f1f5e9;border-radius:18px}
.activity-empty h3{font-size:21px;min-height:0;margin-bottom:12px}.activity-empty p{font-size:14px}
@media(max-width:1100px){.activity-topic-grid,.activity-learning-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.activity-topic-card{min-height:105px}.activity-topic-art{width:65px}}
@media(max-width:540px){.activity-topic-grid{gap:10px}.activity-topic-card{flex-direction:column;align-items:flex-start;gap:8px;padding:14px 12px;position:relative}.activity-topic-card strong{font-size:14px}.activity-topic-card small{font-size:11px}.activity-topic-art{width:52px}.activity-topic-arrow{position:absolute;top:10px;right:12px}.activity-topic-controls{gap:8px 12px}.activity-topic-controls label{width:100%}.activity-topic-controls select{width:100%;min-width:0}.activity-topic-heading h2,.activity-library-heading{font-size:23px}.activity-topic-section{margin-bottom:32px}}
@media(max-width:700px){.activity-learning-grid{gap:10px}.activity-learning-grid .activity-topic-card{flex-direction:column;align-items:flex-start;position:relative;min-height:150px;padding:14px 12px;gap:8px}.activity-learning-grid .activity-topic-art{width:40px}.activity-learning-grid .activity-topic-arrow{position:absolute;top:10px;right:12px}.activity-learning-grid .activity-topic-card strong{font-size:16px}.activity-learning-grid .activity-topic-card small{font-size:11px}}