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.footer a{color:inherit;text-decoration:none}.footer a:hover{text-decoration:underline}
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@media(max-width:370px){.app-shell{padding:0 14px}.welcome h1{font-size:26px}.mascot{transform:scale(.4);right:-4px;top:44px}.welcome p{font-size:9px}.lesson-copy strong{font-size:11px}.small-tag{font-size:8px}.scoreboard>div{font-size:10px}.lesson-controls{left:14px;right:14px}}
.game-result{text-align:center}.game-result .eyebrow{justify-content:center;margin:12px 0 0}.game-result h2{font-size:29px;margin:10px 0 22px}.result-badge{display:grid;place-items:center;width:72px;height:72px;margin:auto;border-radius:50%;background:#e2edbd;color:#607a40;font-size:44px}.final-scores{display:grid;grid-template-columns:1fr 1fr;gap:12px}.final-scores>div{display:flex;flex-direction:column;align-items:center;gap:10px;background:#f0f2e8;border-radius:18px;padding:20px 12px;font-size:11px}.final-scores>div:last-child{background:#f4e7d9}.final-scores strong{font-size:42px;font-weight:500;line-height:1.2}.final-scores small{font-size:12px;margin-left:5px}.game-result .result-difference{font-size:17px;font-weight:700;color:#546344;margin:20px 0 8px}.game-result .muted{display:block;margin-bottom:16px}
.counting-stone{transform-box:fill-box;transform-origin:center;animation:counting-stone-pulse .24s cubic-bezier(.2,.8,.3,1.2) both}.stone-count-number{font-size:14px;font-weight:900;font-family:system-ui,sans-serif;paint-order:stroke;stroke-width:2.5px;pointer-events:none}.stone-count-number.is-new{animation:stone-count-appear .2s cubic-bezier(.2,.8,.3,1.15) both}.stone-count-number.color-1{fill:#fffdf3;stroke:#354037}.stone-count-number.color-2{fill:#354037;stroke:#fffdf3}@keyframes counting-stone-pulse{0%{transform:scale(1)}48%{transform:scale(1.18)}100%{transform:scale(1)}}@keyframes stone-count-appear{from{opacity:0;font-size:2px}70%{opacity:1;font-size:15.7px}to{opacity:1;font-size:14px}}
.tip>svg{width:21px;height:21px;color:#b4bf96;stroke-width:1.7}
.dialog-symbol>svg{width:32px;height:32px;stroke-width:1.7}
.training-progress{display:inline-block;margin-top:18px}.training-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 28px;padding-bottom:20px}.training-group{padding:25px;background:#fffef9;border:1px solid var(--border);border-radius:22px}.training-group-heading{display:flex;align-items:flex-start;gap:17px;margin-bottom:20px}.training-group-heading .large-symbol{font-size:32px;line-height:1;color:#afbd80}.training-group-heading h2{font-size:21px;margin:6px 0 8px}.training-group-heading p{font-size:11px;line-height:1.8;color:#7d876f}.training-group .lesson-row{min-height:82px;padding:15px}.training-group .lesson-number{width:38px;height:38px}.training-group .lesson-copy strong{font-size:12px}
.achievement-navigation{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:5px}.achievement-navigation .button{width:auto;min-width:0;margin-top:0;padding:11px 9px}.achievement-navigation+.button{margin-top:9px!important}
.lesson-page-navigation{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:36px 0 8px;padding-top:26px;border-top:1px solid var(--border)}.lesson-page-link{width:100%;min-width:0;min-height:82px;display:flex;align-items:center;gap:15px;padding:16px 19px;border:1px solid #dfe3d2;border-radius:17px;background:#f0f1e8;text-align:left;overflow:hidden}.lesson-page-link.next{justify-content:flex-end;text-align:right}.lesson-page-link:hover:not(:disabled){background:#e7eadc;transform:translateY(-2px)}.lesson-page-link span{min-width:0;display:flex;flex:1;flex-direction:column;gap:6px;overflow:hidden}.lesson-page-link small{font-size:9px;font-weight:800;letter-spacing:1.4px;color:#788075}.lesson-page-link strong{display:block;max-width:100%;font-size:13px;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson-page-link svg{width:22px;height:22px;color:#788075}
@media(max-width:800px){.training-groups{grid-template-columns:1fr}}
@media(max-width:650px){.training-group{padding:18px 14px;border-radius:18px}.training-group-heading{padding:2px 5px;margin-bottom:15px}.training-group-heading h2{font-size:19px}.training-group .lesson-row{padding:14px 12px}}
.board-coordinate{position:absolute;z-index:2;color:#766947;font-size:9px;font-weight:600;line-height:1;pointer-events:none}.column-coordinate{top:-18px;transform:translateX(-50%)}.row-coordinate{left:-5px;transform:translate(-50%,-50%)}
.board-panel>.scoreboard{margin-bottom:28px}
.atari-faces{pointer-events:none}.atari-face{fill:none;stroke:#fff4d7;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 1px 1px #18201980);animation:atari-face-in .2s ease-out both}.atari-face ellipse{fill:#fff4d7;stroke:none}.atari-warning{position:absolute;z-index:4;top:10px;left:50%;translate:-50% 0;display:flex;align-items:center;gap:6px;padding:6px 11px 6px 7px;border:1px solid #e7b396;border-radius:99px;background:#fff8edeb;color:#a34f34;box-shadow:0 4px 14px #74462a26;backdrop-filter:blur(5px);font-size:11px;font-weight:800;letter-spacing:.08em;pointer-events:none;animation:atari-warning-in .16s ease-out both}.atari-warning span{display:grid;place-items:center;width:18px;height:18px;border-radius:50%;background:#d77952;color:#fffaf0;font-family:Georgia,serif;font-size:12px}@keyframes atari-face-in{from{opacity:0}to{opacity:1}}@keyframes atari-warning-in{from{opacity:0;translate:-50% -5px}to{opacity:1;translate:-50% 0}}
.captured-stones{pointer-events:none}.captured-stone.color-1{fill:#354037}.captured-stone.color-2{fill:#fffdf3;stroke:#d9dbcc;stroke-width:1}.captured-body{opacity:0;transform-box:fill-box;transform-origin:center;animation:stone-metamorphose .42s cubic-bezier(.2,.75,.25,1) calc(var(--capture-index)*20ms) both}.capture-particle{opacity:0;transform-box:fill-box;transform-origin:center;animation:capture-particle .34s ease-out calc(90ms + var(--capture-index)*20ms) both}.particle-two{animation-delay:calc(125ms + var(--capture-index)*20ms)}@keyframes stone-metamorphose{0%{opacity:1;transform:translateY(0) scale(1) rotate(0)}20%{opacity:1;transform:translateY(2px) scale(1.14,.76) rotate(-5deg)}43%{opacity:.94;transform:translateY(-5px) scale(.72,1.22) rotate(8deg)}68%{opacity:.7;transform:translateY(-17px) scale(.38,1.05) rotate(-13deg)}100%{opacity:0;transform:translateY(-38px) scale(.06,1.5) rotate(24deg)}}@keyframes capture-particle{0%{opacity:.75;transform:translate(0,0) scale(1)}100%{opacity:0;transform:translate(-8px,-27px) scale(.2)}}

dialog.achievement-dialog{max-width:440px;padding:34px 32px 30px;overflow:hidden;border-color:#d8e3b8;background:linear-gradient(160deg,#fffef8 55%,#f1f6df);box-shadow:0 24px 100px #27322542}
.achievement{text-align:center;position:relative}.achievement .eyebrow{justify-content:center;color:#81925b;margin-top:17px}.achievement h2{font-size:27px;letter-spacing:1px;margin:8px 0 5px;color:#35452f}.achievement-badge{position:relative;display:grid;place-items:center;width:82px;height:82px;margin:2px auto 0;border-radius:50%;color:#fffef7;background:#91aa5e;box-shadow:0 0 0 9px #e6efc9,0 12px 28px #718e4938;animation:achievement-pop .7s cubic-bezier(.18,.89,.32,1.28) both}.achievement-badge:after{content:"";position:absolute;inset:-17px;border:1px solid #cbdba1;border-radius:50%;animation:achievement-ring 1.2s ease-out .2s both}.achievement-badge svg{width:38px;height:38px;stroke-width:2.4}.achievement-title{font-weight:700!important;color:#5f6b56!important;margin:2px 0 17px!important}.achievement-progress{display:flex;justify-content:center;align-items:center;gap:9px;width:max-content;max-width:100%;margin:0 auto;padding:10px 16px;border-radius:99px;background:#e6efca;color:#5a713a;font-size:12px}.achievement-progress>span{color:#c77c4f;font-size:17px;animation:achievement-twinkle .8s ease-in-out .35s both}.achievement-message{margin:18px auto 8px!important;max-width:320px;font-size:12px!important;line-height:1.9!important;color:#7c8374!important}.celebration{position:absolute;inset:-34px -15px auto;height:130px;pointer-events:none}.celebration i{position:absolute;top:-20px;width:8px;height:14px;border-radius:4px;background:#d77952;animation:confetti-fall 1.05s cubic-bezier(.2,.7,.35,1) both}.celebration i:nth-child(1){left:4%;transform:rotate(18deg);animation-delay:.05s}.celebration i:nth-child(2){left:20%;width:10px;height:10px;border-radius:50%;background:#a6ba73;animation-delay:.18s}.celebration i:nth-child(3){left:36%;background:#e2b457;animation-delay:.02s}.celebration i:nth-child(4){right:34%;width:9px;height:9px;border-radius:50%;background:#d58e9d;animation-delay:.24s}.celebration i:nth-child(5){right:17%;background:#91aa5e;animation-delay:.1s}.celebration i:nth-child(6){right:3%;width:10px;height:10px;background:#e2b457;animation-delay:.3s}@keyframes achievement-pop{0%{opacity:0;transform:scale(.45) rotate(-10deg)}65%{transform:scale(1.12) rotate(3deg)}100%{opacity:1;transform:scale(1) rotate(0)}}@keyframes achievement-ring{0%{opacity:0;transform:scale(.6)}45%{opacity:1}100%{opacity:0;transform:scale(1.32)}}@keyframes achievement-twinkle{0%{opacity:0;transform:scale(.4) rotate(-30deg)}70%{transform:scale(1.35) rotate(8deg)}100%{opacity:1;transform:scale(1) rotate(0)}}@keyframes confetti-fall{0%{opacity:0;translate:0 0;rotate:0deg}15%{opacity:1}100%{opacity:0;translate:var(--drift,8px) 125px;rotate:230deg}}.celebration i:nth-child(even){--drift:-12px}.achievement-dialog[open]{animation:achievement-dialog-in .32s ease-out both}@keyframes achievement-dialog-in{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}
@media(max-width:650px){dialog.achievement-dialog{padding:30px 22px 24px}.achievement-badge{width:74px;height:74px}.achievement h2{font-size:23px}.achievement-message{font-size:11px!important}}
@media(max-width:650px){.board-panel{padding:10px;border-radius:16px}.board-panel>.scoreboard{margin:0 2px 28px}.board-panel>.scoreboard strong{font-size:21px}.board-panel>.board-caption{margin-top:10px}}
.course-tabs button{flex-wrap:wrap;row-gap:5px}
.course-tab-description{flex-basis:100%;font-size:9px;font-weight:500;line-height:1.5;color:#989d91}
.course-tabs button.active .course-tab-description{color:#71796c}
@media(max-width:650px){
  .lesson-shell{min-height:100dvh;padding:0 20px}
  .lesson-shell .header,.lesson-shell .footer,.lesson-shell .mobile-nav{display:none}
  .lesson-shell main{min-height:100dvh}
  .lesson-shell .workspace-heading{height:64px;padding:6px 0 4px;display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;column-gap:8px}
  .lesson-shell .workspace-heading .text-button{margin:0;padding:4px 0;min-height:28px;justify-content:flex-start}
  .lesson-shell .workspace-heading .text-button svg{width:16px;height:16px}
  .lesson-shell .workspace-heading .small-tag{justify-self:end;max-width:100%;overflow:hidden;text-overflow:ellipsis}
  .lesson-shell .workspace-heading h1{grid-column:1/-1;margin:0;font-size:16px;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .lesson-workspace{min-height:calc(100dvh - 64px);padding:0 0 64px;gap:8px;grid-template-rows:auto minmax(0,1fr);align-items:start}
  .lesson-workspace .board-panel{width:min(100%,calc(100dvh - 310px));padding:10px;border-radius:16px}
  .lesson-workspace .scoreboard{margin:0 2px 7px}
  .lesson-workspace .scoreboard strong{font-size:21px}
  .lesson-workspace .board-caption{margin-top:10px}
  .lesson-workspace .lesson-panel{min-height:0;padding:0;display:grid;grid-template-rows:auto minmax(0,1fr)}
  .lesson-workspace .coach{min-height:28px}
  .lesson-workspace .message{min-height:0;padding:5px 0 2px;font-size:clamp(12px,1.8vh,14px);line-height:1.6;overflow:hidden}
  .lesson-workspace .note-box{display:none}
  .lesson-controls{left:20px;right:20px;bottom:max(7px,env(safe-area-inset-bottom));display:grid;grid-template-columns:1fr 1.25fr 1fr 1fr;gap:6px;padding:7px;border-radius:14px}
  .lesson-controls.free-play-controls{grid-template-columns:repeat(3,minmax(0,1fr))}
  .lesson-controls>.button,.lesson-controls .button-row>.button{min-height:43px;padding:7px 4px;gap:4px;font-size:10px;white-space:nowrap}
  .lesson-controls svg{width:15px;height:15px}
  .lesson-controls>[data-action="previous"]{grid-column:1;grid-row:1}
  .lesson-controls>[data-action="next"]{grid-column:2;grid-row:1}
  .lesson-controls>[data-action="home"]{grid-column:1/4}
  .lesson-controls .button-row{display:contents;margin:0}
  .lesson-controls .practice-hint{display:none}
  .lesson-page-navigation{grid-template-columns:1fr 1fr;gap:7px;margin:24px 0 calc(76px + max(7px,env(safe-area-inset-bottom)));padding-top:20px}.lesson-page-link{min-height:52px;padding:8px 10px;gap:7px;border-radius:13px}.lesson-page-link small{font-size:8px}.lesson-page-link strong{font-size:10px}.lesson-page-link svg{width:16px;height:16px}
}

/* Page navigation uses real links while retaining the existing button styling. */
a{color:inherit;text-decoration:none}
a:focus-visible{outline:3px solid #c47749;outline-offset:4px}
a:active{transform:translateY(1px)}
[aria-disabled="true"]{cursor:default;opacity:.4;pointer-events:none}
.course-tabs [data-course]{display:flex;align-items:center;justify-content:center;gap:10px;flex:1;flex-wrap:wrap;row-gap:5px;background:none;padding:12px 7px;border-radius:10px;font-size:12px;font-weight:700;color:#7e8479}
.course-tabs [data-course].active{background:var(--paper);color:var(--ink);box-shadow:0 2px 4px #27352808}
.course-tabs [data-course].active .course-tab-description{color:#71796c}
.course-tabs .course-tab-description{text-align:center}
.lesson-page-link:hover:not([aria-disabled="true"]){background:#e7eadc;transform:translateY(-2px)}
@media(max-width:650px){.lesson-workspace .scoreboard{margin-bottom:28px}}
@media(max-width:370px){.lesson-shell{padding-left:14px;padding-right:14px}.lesson-controls{left:14px;right:14px}}

.level-select-intro{padding:52px 0 34px;text-align:center}.level-select-intro .eyebrow{justify-content:center}.level-select-intro h1{font-size:34px;line-height:1.55;letter-spacing:2px;margin:13px 0 10px}.level-select-intro p{font-size:12px;line-height:2;color:#7c8475}.level-select{max-width:900px;margin:0 auto 40px}.level-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-top:22px}.level-card{min-height:190px;display:flex;flex-direction:column;text-align:left;padding:20px;border:1px solid var(--border);border-radius:19px;background:var(--paper);box-shadow:0 3px 0 #303c3505}.level-card:hover{border-color:#b9c991;background:#f6f9eb;transform:translateY(-2px)}.level-card.recommended{border-color:#cddca9;background:#f2f6e4}.level-card-top{display:flex;align-items:center;justify-content:space-between;gap:7px}.level-number{font-family:Georgia,serif;font-size:10px;color:#7d8674;letter-spacing:1px}.level-number strong{font-size:25px;font-weight:400;color:#3f4e3b;margin-left:2px}.level-status{padding:5px 7px;border-radius:99px;background:#f0f1e8;color:#848b7c;font-size:8px;white-space:nowrap}.level-status.complete{background:#deebba;color:#58703b}.level-name{font-size:14px;line-height:1.6;margin:15px 0 5px}.level-detail{font-size:10px;color:#8b9186;line-height:1.6}.level-cta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:18px;color:#647b43;font-size:10px;font-weight:700}.level-cta svg{width:15px;height:15px}.level-footnote{text-align:center;color:#8c9287;font-size:10px;line-height:1.8;margin-top:20px}.current-level{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 16px;border:1px solid #e0e4d5;border-radius:15px;background:#fffef9}.current-level>div{display:flex;flex-direction:column;gap:7px;min-width:0}.current-level strong{font-size:12px;line-height:1.5}.current-level .button{min-height:36px;padding:8px 12px;white-space:nowrap}.battle-start{text-align:center}.battle-start-stones{position:relative;width:92px;height:63px;margin:0 auto 7px}.battle-start-stones .score-stone{position:absolute;width:51px;height:51px;box-shadow:0 7px 15px #303c3520}.battle-start-stones .black{left:5px;top:0}.battle-start-stones .white{right:5px;bottom:0;border-width:2px}.battle-start .eyebrow{justify-content:center;margin-top:8px;color:#788b54}.battle-start h2{font-size:27px;line-height:1.4;margin:8px 0 20px}.battle-start h2 span{font-size:14px;color:#707966;font-weight:600}.battle-start-rule{display:flex;align-items:center;gap:12px;text-align:left;padding:15px 16px;border-radius:14px;background:#eff3e1}.battle-start-rule .score-stone{width:26px;height:26px}.battle-start-rule p{margin:0;font-size:11px;line-height:1.7;color:#737c6b}.battle-start-rule strong{font-size:13px;color:#3e4c3b}.battle-start .battle-start-note{margin:15px 0 4px;font-size:11px;line-height:1.7}.battle-start-dialog[open]{animation:achievement-dialog-in .25s ease-out both}
@media(max-width:850px){.level-grid{grid-template-columns:repeat(2,1fr)}.level-card{min-height:170px}}
@media(max-width:650px){.level-select-intro{padding:34px 0 25px}.level-select-intro h1{font-size:27px}.level-select-intro p{font-size:10px}.level-select{margin-bottom:100px}.level-grid{gap:10px;margin-top:16px}.level-card{min-height:158px;padding:15px;border-radius:16px}.level-name{font-size:12px;margin-top:12px}.level-number strong{font-size:21px}.level-status{font-size:7px;padding:4px 6px}.level-detail{font-size:9px}.level-cta{padding-top:13px;font-size:9px}.current-level{padding:12px}.current-level strong{font-size:11px}dialog.battle-start-dialog{padding:26px 24px}.battle-start h2{font-size:23px}}
@media(max-width:370px){.level-grid{grid-template-columns:1fr}.level-card{min-height:140px}}

.level-select{max-width:760px}.level-grid{grid-template-columns:1fr}.level-card{min-height:132px;display:grid;grid-template-columns:104px minmax(0,1fr) auto;align-items:center;gap:22px;padding:15px 20px}.level-card-copy{min-width:0;display:flex;flex-direction:column;align-items:flex-start}.level-card-top{justify-content:flex-start}.level-name{margin:7px 0 4px}.level-thumbnail{display:block;width:104px;aspect-ratio:1;border:1px solid #decca2;border-radius:12px;background:#ead8ae;box-shadow:0 3px 0 #dfcda4;overflow:hidden}.level-thumbnail svg{display:block;width:100%;height:100%}.thumbnail-grid{fill:none;stroke:#ad9d78;stroke-width:.65}.thumbnail-stones{fill:#354037;stroke:#354037;stroke-width:.5;filter:drop-shadow(0 1px 1px #0003)}.level-cta{min-width:126px;margin:0;padding:0;gap:14px;justify-content:flex-end}.battle-start-dialog #dialog-close{display:none}.battle-start .eyebrow{line-height:1.6}.battle-start h2{font-size:29px;margin:10px 0 22px}
@media(max-width:650px){.level-card{min-height:126px;grid-template-columns:82px minmax(0,1fr);gap:7px 14px;padding:13px 14px}.level-thumbnail{width:82px;grid-row:1/3}.level-card-top{gap:5px}.level-name{margin-top:5px}.level-cta{grid-column:2;min-width:0;justify-content:flex-start;gap:8px;padding-top:2px}.battle-start h2{font-size:26px}}

.battle-controls{display:flex;flex-direction:column;gap:11px}.fill-action{display:flex;align-items:stretch;gap:7px}.fill-action>.button{flex:1}.fill-help-button{width:45px;min-width:45px;border:1px solid #dfe3d2;border-radius:12px;background:var(--paper);color:#6f7967;font-size:16px;font-weight:800}.fill-help-button:hover{background:#f0f3e5}
.board-review-controls{margin-top:16px;padding:14px;border-radius:14px;background:#f0f1e8}.review-slider-heading{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#69755d}.review-slider-heading output{font-variant-numeric:tabular-nums;color:#7d856f}.review-slider-row{display:flex;align-items:center;gap:10px;margin:10px 2px 13px;color:#8c9384;font-size:9px}.review-slider-row input{width:100%;accent-color:#819b56;cursor:pointer}.review-button-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}.review-button-grid .button{min-width:0;padding:9px 6px;font-size:10px;white-space:nowrap}.review-button-grid svg{width:15px;height:15px}.review-replay-action{margin-top:18px}
@media(min-width:651px){.battle-controls{margin-top:18px}}
@media(max-width:650px){.battle-workspace{padding-bottom:205px}.battle-workspace.review-workspace{padding-bottom:0}.battle-controls{position:fixed;left:20px;right:20px;bottom:calc(80px + env(safe-area-inset-bottom));z-index:4;display:grid;grid-template-columns:repeat(6,1fr);gap:7px;padding:9px;background:#fffef7f2;border:1px solid #e2e5d6;border-radius:16px;box-shadow:0 -8px 30px #303c351a;backdrop-filter:blur(12px)}.battle-controls .battle-actions,.battle-controls .button-row{display:contents}.battle-controls>.full{grid-column:1/-1;margin:0}.battle-controls .battle-actions>.button:first-child{grid-column:1/4}.battle-controls .fill-action{grid-column:4/7;min-width:0}.battle-controls .fill-action>.button{min-width:0}.battle-controls .fill-help-button{width:39px;min-width:39px}.battle-controls .button-row>.button:nth-child(1){grid-column:1/3}.battle-controls .button-row>.button:nth-child(2){grid-column:3/5}.battle-controls .button-row>.button:nth-child(3){grid-column:5/7}.battle-controls .button{min-height:43px;padding:7px 4px;gap:4px;font-size:10px;white-space:nowrap}.battle-controls svg{width:15px;height:15px}.battle-result-control .button{grid-column:1/-1}.battle-panel>.note-box{margin-top:18px}.review-button-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.board-review-controls{padding:12px 10px}.review-replay-action{margin-top:12px}}
@media(max-width:370px){.battle-controls{left:14px;right:14px}}

/* Long-form site name */
.board-input.turn-2 .intersection:hover:not(:disabled) span{background:#fffdf3b8;box-shadow:inset 0 0 0 1px #d9dbccaa}
.header{gap:22px}
.brand{min-width:0;font-size:inherit;letter-spacing:normal}
.brand-mark{flex:0 0 45px}
.brand-copy{display:flex;min-width:0;flex-direction:column;gap:4px}
.brand-promise{font-size:10px;line-height:1.2;letter-spacing:1.4px;font-weight:700;color:#7d856f}
.brand-title{font-size:17px;line-height:1.4;letter-spacing:.7px;font-weight:900;white-space:nowrap}
.desktop-nav{margin-left:auto;flex-shrink:0}
.help-button{flex-shrink:0}
@media(max-width:1000px) and (min-width:651px){
  .header{gap:13px}
  .brand{gap:9px}
  .brand-mark{width:38px;flex-basis:38px;transform:scale(.86);transform-origin:left center}
  .brand-title{font-size:14px;letter-spacing:.2px}
  .brand-promise{font-size:9px;letter-spacing:.8px}
  .desktop-nav{gap:4px}
  .desktop-nav .nav-item{padding:12px 11px;gap:6px}
}
@media(max-width:650px){
  .header{gap:12px}
  .brand{gap:7px;max-width:calc(100% - 48px)}
  .brand-mark{flex-basis:38px}
  .brand-copy{gap:2px}
  .brand-promise{font-size:8px;letter-spacing:.8px}
  .brand-title{font-size:13px;line-height:1.35;letter-spacing:.25px;white-space:normal}
  .help-button{margin-left:auto}
  .footer span:last-child{text-align:center;line-height:1.7}
}
@media(max-width:370px){
  .header{gap:8px}
  .brand{max-width:calc(100% - 42px)}
  .brand-mark{width:34px;flex-basis:34px;transform:scale(.76)}
  .brand-title{font-size:11.5px}
  .brand-promise{font-size:7.5px}
  .welcome{overflow:hidden}
  .home-aside,.progress-card,.play-card,.tip{min-width:0;width:100%}
  .progress-dots{gap:4px}
}

.ssg-hero{padding:64px 0 42px;max-width:760px}.ssg-hero h1{font-size:40px;line-height:1.55;margin:14px 0}.ssg-hero p,.ssg-section>p,.ssg-lesson p{color:#747d70;line-height:2}.ssg-section{margin:0 0 42px}.ssg-section h2{font-size:25px;margin-bottom:10px}.ssg-section>p{font-size:13px;margin-bottom:20px}.ssg-levels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:24px 0 50px}.ssg-levels .level-card{min-height:120px;display:flex}.ssg-levels .level-card span{font-size:15px;margin-top:10px}.ssg-levels .level-card small{color:#647b43;margin-top:auto}.ssg-lesson{padding:32px 0 20px}.ssg-breadcrumb{display:flex;gap:10px;font-size:11px;color:#788075;margin-bottom:32px}.ssg-breadcrumb a:hover{text-decoration:underline}.ssg-lesson-grid{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:54px;align-items:center}.ssg-lesson h1{font-size:36px;line-height:1.55;margin:14px 0 24px}.ssg-lesson p{font-size:14px;margin:0 0 14px}.ssg-launch{padding:15px 17px;background:#eef2df;border-radius:13px;margin-top:24px!important}.ssg-board{width:100%;background:#ead8ae;border:1px solid #decca2;border-radius:22px;box-shadow:0 7px 0 #dfcda4}.ssg-board>rect{fill:#ead8ae}.ssg-grid{fill:none;stroke:#ad9d78;stroke-width:1.2}.ssg-board .stone-1{fill:#354037;stroke:#354037}.ssg-board .stone-2{fill:#fffdf3;stroke:#d5d6ca;stroke-width:2}.ssg-error{max-width:600px;margin:15vh auto;padding:30px;text-align:center}.ssg-error p{margin:20px}.ssg-error .button{margin-top:10px}
@media(max-width:650px){.ssg-hero{padding:38px 0 28px}.ssg-hero h1{font-size:28px}.ssg-levels{grid-template-columns:1fr}.ssg-lesson-grid{grid-template-columns:1fr;gap:28px}.ssg-lesson h1{font-size:26px}.ssg-board{max-width:430px;margin:auto;order:-1}.ssg-shell .header{height:82px}.ssg-shell .desktop-nav{display:none}}

.failure-message{display:flex;flex-direction:column;justify-content:center;gap:12px;color:#8f2727}
.failure-message strong{display:flex;align-items:center;gap:12px;color:#c73535;font-size:clamp(34px,4vw,48px);font-weight:900;line-height:1.15;letter-spacing:.12em}
.failure-message strong svg{width:1em;height:1em;stroke-width:2.4}
.failure-message p{color:#7d4646;font-size:14px;font-weight:600;line-height:1.8;letter-spacing:.3px}
@media(max-width:650px){.failure-message{padding:14px 0 18px!important}.failure-message strong{font-size:34px}.failure-message p{font-size:13px}}

/* Social sharing */
.share-panel{display:flex;align-items:center;justify-content:center;gap:18px;margin:50px 0 0;padding:24px;border:1px solid var(--border);border-radius:20px;background:#fffef9}.share-label{font-size:11px;font-weight:800;letter-spacing:.08em;color:#737c6d}.share-buttons{display:flex;align-items:center;gap:8px}.share-button{min-height:39px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:8px 12px;border:1px solid #e0e3d6;border-radius:11px;background:#f7f7f0;color:#5f685c;font-size:10px;font-weight:700;text-decoration:none;transition:background .16s,transform .16s,border-color .16s}.share-button:hover{background:#eef2df;border-color:#cbd7ad;transform:translateY(-1px);text-decoration:none}.share-button svg{width:19px;height:19px;color:currentColor}.share-status{min-width:114px;font-size:9px;color:#6d7d54}
.grid .star-point,.thumbnail-grid .star-point,.ssg-grid .star-point{fill:#8f805f;stroke:none}
@media(max-width:650px){.share-panel{margin-top:30px;padding:18px 12px;flex-direction:column;gap:12px}.share-buttons{width:100%;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.share-button{min-width:0;padding:8px 4px;flex-direction:column;gap:4px;font-size:8px}.share-status{min-height:12px;text-align:center}.lesson-shell .workspace-heading .small-tag{display:none}.lesson-shell .share-panel{position:fixed;z-index:6;top:7px;right:20px;margin:0;padding:0;border:0;background:transparent}.lesson-shell .share-panel>.share-label,.lesson-shell .share-panel>.share-status,.lesson-shell .share-button>span{display:none}.lesson-shell .share-buttons{display:flex;width:auto;gap:4px}.lesson-shell .share-button{width:31px;height:31px;min-height:31px;padding:4px;border-radius:9px;background:#fffef7e8;box-shadow:0 2px 8px #303c3512;backdrop-filter:blur(8px)}.lesson-shell .share-line b{width:23px}}
@media(max-width:370px){.lesson-shell .share-panel{right:14px}.lesson-shell .share-buttons{gap:3px}.lesson-shell .share-button{width:29px;height:29px;min-height:29px}}
@media(max-width:650px){.welcome{overflow:hidden}}