.game-grid:has(.rule-card){grid-template-columns:repeat(3,minmax(0,1fr))}.rule-visual{background:radial-gradient(ellipse at center,#235b5b99,transparent 70%),linear-gradient(135deg,#132a30,#0d141c)}.rule-card-art{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;transform:rotate(-5deg)}.rule-card-art span,.rule-card-art b{width:52px;height:52px;display:grid;place-items:center;border:1px solid #477a77;border-radius:9px;background:linear-gradient(140deg,#23474a,#17282f);box-shadow:0 5px 0 #071216;font-size:25px;color:#8fe2d4}.rule-card-art span:nth-child(2n){color:#c7aaff}.rule-card-art span:nth-child(3n){color:#ffc27c}.rule-card-art b{color:#f4f7f0;border-color:#8fe2d4;font-size:23px;box-shadow:0 0 22px #8fe2d433,0 5px 0 #071216}#modal.rule-open{width:min(880px,calc(100vw - 28px));max-width:880px;max-height:94dvh;overflow:auto;background:radial-gradient(ellipse at 5% 0,#254a5145,transparent 42%),radial-gradient(ellipse at 95% 5%,#6b4d8340,transparent 42%),#101821;border:1px solid #47616b;color:#eef5f4;padding:clamp(18px,3vw,34px)}
.rule-open .modal-top{position:sticky;top:-1px;z-index:3;background:#101821ee;padding-bottom:12px;margin-bottom:10px;backdrop-filter:blur(8px)}.rg-intro{text-align:center;padding:6px 8px 10px}.rg-kicker{font:700 10px/1.5 system-ui;letter-spacing:2px;color:#8fe2d4}.rg-intro h2,.rg-game h2,.rg-result h2{font-size:clamp(28px,4vw,42px);margin:12px 0;color:#f4f5f0}.rg-intro h2 span,.rg-game h2 span,.rg-result h2 span{color:#8fe2d4}.rg-intro>p{font-size:13px;line-height:1.9;color:#b2c2c8}.rg-demo{display:flex;justify-content:center;align-items:center;gap:12px;margin:25px auto 18px;position:relative;max-width:330px}.rg-demo .rg-card-wrap{width:76px}.rg-demo-arrow{color:#8fe2d4;font-size:24px}.rg-demo-label{position:absolute;bottom:-24px;font-size:10px;color:#839ca3}.rg-menu-stats{display:flex;justify-content:center;gap:clamp(16px,4vw,44px);margin:36px 0 18px;color:#91a8ae;font-size:11px}.rg-menu-stats b{display:block;font:700 26px/1.2 ui-monospace,monospace;color:#eaf6f3;margin-bottom:4px}.rg-best-line{color:#b2c9c9;font-size:12px}.rg-best-line b{color:#8fe2d4}.rg-primary,.rg-secondary{width:100%;display:block;border-radius:12px;padding:15px 18px;border:1px solid transparent;font-weight:800;font-size:14px;text-align:center;transition:transform .15s,filter .15s,background .15s}.rg-primary{color:#08201f;background:linear-gradient(120deg,#a7f2e4,#72d4c6);box-shadow:0 5px 0 #2b7775}.rg-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}.rg-primary:active{transform:translateY(2px);box-shadow:0 2px 0 #2b7775}.rg-primary:disabled,.rg-secondary:disabled,.rg-hint:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}.rg-secondary{margin-top:12px;background:#18242f;color:#c6d9d8;border-color:#425661}.rg-primary small,.rg-secondary small{display:block;font-weight:400;font-size:10px;margin-top:5px;opacity:.8}.rg-footnote{font-size:10px;line-height:1.8;color:#7f969e;margin:16px 0 0}.rg-game-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.rg-game-top h2{font-size:clamp(25px,3vw,34px);margin:7px 0}.rg-exit,.rg-text{border:0;background:none;color:#8da4ad;font-size:11px;padding:8px}.rg-hud{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;padding:13px 14px;border:1px solid #2d424a;background:#14232a;border-radius:10px;margin:12px 0 15px;color:#8da9b0;font:10px system-ui;letter-spacing:1px}.rg-hud>span:nth-child(2){text-align:center}.rg-hud>span:last-child{text-align:right}.rg-hud b{color:#ecf8f4;font:700 16px ui-monospace,monospace;letter-spacing:0;margin-left:5px}.rg-lives{color:#ff9ba5!important;font-size:17px!important;letter-spacing:2px!important}.rg-lives i{font-style:normal;color:#5c6871}.rg-instruction{font-size:12px;line-height:1.8;color:#b2c5c9;margin:12px 0 18px}.rg-instruction b{color:#e9f5f1}.rg-example-columns{display:grid;grid-template-columns:1fr 1fr;gap:12px}.rg-example-columns section{background:#111f27;border:1px solid #2d424b;border-radius:12px;padding:13px}.rg-example-columns h3,.rg-candidate-head h3{font-size:13px;margin:0 0 12px;letter-spacing:0;color:#e5f0ed}.rg-example-columns h3 span{float:right;font:9px system-ui;letter-spacing:1.5px;color:#77949c}.rg-example-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px 7px}.rg-card-wrap{min-width:0;position:relative;padding-top:12px}.rg-card{width:100%;min-width:0;aspect-ratio:1.05;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;position:relative;border:1px solid #42565e;border-radius:9px;background:linear-gradient(145deg,#253a42,#18262e);color:#e9f5f1;transition:transform .18s,border-color .18s,background .18s,box-shadow .18s;overflow:hidden;padding:5px 2px}.rg-card:not(:disabled){cursor:pointer}.rg-card:not(:disabled):hover{transform:translateY(-3px);border-color:#8fe2d4}.rg-card small{font-size:9px;color:#a6bbc0}.rg-card:disabled{opacity:1;cursor:default}.rg-glyph{display:flex;align-items:center;justify-content:center;gap:2px;font-size:clamp(19px,3vw,31px);line-height:1;white-space:nowrap}.rg-mint .rg-glyph{color:#8fe2d4;text-shadow:0 0 16px #8fe2d433}.rg-violet .rg-glyph{color:#c7aaff;text-shadow:0 0 16px #c7aaff33}.rg-orange .rg-glyph{color:#ffc27c;text-shadow:0 0 16px #ffc27c33}.rg-card.is-outline:after{content:'';position:absolute;inset:4px;border:1px solid currentColor;opacity:.35;border-radius:6px;pointer-events:none}.rg-outline-mark{font-style:normal;font-size:7px;position:absolute;right:5px;top:4px;color:#8ea8ad;letter-spacing:0}.rg-example-tag{position:absolute;z-index:2;top:0;left:50%;transform:translateX(-50%);padding:2px 8px;border-radius:12px;font-size:8px;font-weight:800;white-space:nowrap}.rg-example-tag.pass{background:#c6f8e9;color:#0c5148}.rg-example-tag.fail{background:#38464c;color:#c0d0d2}.rg-candidate-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:22px 0 12px}.rg-candidate-head h3{margin:0;font-size:15px}.rg-candidate-head span{font-size:10px;color:#8fe2d4}.rg-candidate-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}.rg-candidate-grid .rg-card{aspect-ratio:.9}.rg-card.is-selected{border:2px solid #8fe2d4;background:#24474b;box-shadow:0 0 0 3px #8fe2d41c,0 8px 20px #0003;transform:translateY(-4px)}.rg-card.is-selected:before{content:'✓';position:absolute;top:4px;left:5px;width:18px;height:18px;display:grid;place-items:center;border-radius:50%;background:#a7f2e4;color:#102c2a;font-size:11px;font-weight:900}.rg-card.is-correct{border-color:#8fe2b3;background:#1c4c42;animation:rg-correct .42s ease-out}.rg-card.is-fail,.rg-card.is-wrong{border-color:#f2a0a0;background:#452d36}.rg-hint-box{min-height:0;margin-top:8px;font-size:11px;color:#b6d6d4;line-height:1.7}.rg-hint-box:empty{display:none}.rg-hint-box>span{font-weight:800;color:#8fe2d4;margin-right:6px}.rg-hint-box small{display:block;color:#81999f}.rg-actions{display:grid;grid-template-columns:minmax(110px,.7fr) minmax(0,1.5fr);gap:10px;margin-top:13px}.rg-hint{border:1px solid #41565e;border-radius:10px;background:#17262e;color:#bfd1d3;font-size:11px;padding:12px}.rg-actions .rg-primary{font-size:12px;padding:13px}.rg-feedback{min-height:0;margin-top:12px;font-size:12px;line-height:1.7}.rg-feedback:empty{display:none}.rg-feedback b,.rg-feedback span{display:block}.rg-feedback.is-good{color:#9df0d0}.rg-feedback.is-bad{color:#ffb1b1}.rg-result{text-align:center;padding:8px 12px 14px}.rg-result-mark{font-size:56px;color:#8fe2d4;margin:20px 0 8px;text-shadow:0 0 35px #8fe2d455}.rg-result>p{font-size:12px;color:#afc3c7;line-height:1.8}.rg-final-score{display:block;font:800 clamp(58px,10vw,82px)/1.2 ui-monospace,monospace;color:#a8f1e2;margin:20px 0}.rg-final-score small{display:block;font:10px system-ui;letter-spacing:3px;color:#71949a;margin-top:6px}.rg-result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;border-top:1px solid #2e434a;border-bottom:1px solid #2e434a;padding:17px 0;margin:20px 0}.rg-result-stats span{font-size:10px;color:#90a8ae}.rg-result-stats b{display:block;font:700 21px ui-monospace,monospace;color:#e6f4f0;margin-bottom:5px}.rg-result-note{font-size:10px!important}.rg-result .rg-text{display:block;margin:8px auto}.rule-feature{max-width:1240px;margin:18px auto 38px;padding:30px 38px;border:1px solid #44716d;border-radius:22px;background:radial-gradient(ellipse at 85% 40%,#2d8d8140,transparent 48%),linear-gradient(110deg,#152c31,#151c2a);display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:24px;overflow:hidden}.rule-feature .rg-kicker{letter-spacing:2px}.rule-feature h2{font-size:clamp(28px,3.5vw,40px);margin:12px 0;color:#e6f5f0}.rule-feature h2 em{font-style:normal;color:#8fe2d4}.rule-feature p{color:#afc7c9;font-size:13px;line-height:1.9}.rule-feature .rg-actions-home{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.rule-feature .rg-primary,.rule-feature .rg-secondary{width:auto;min-width:175px;margin:0;font-size:12px;padding:13px 17px}.rule-feature-art{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:310px;justify-self:center;transform:rotate(4deg)}.rule-feature-art span{display:grid;place-items:center;aspect-ratio:1;width:78px;border:1px solid #548d85;border-radius:13px;background:linear-gradient(145deg,#24474a,#172a32);font-size:33px;box-shadow:0 7px 0 #0b161c;color:#8fe2d4;animation:rg-float 4s ease-in-out infinite}.rule-feature-art span:nth-child(2n){color:#c7aaff;animation-delay:.4s}.rule-feature-art span:nth-child(3n){color:#ffc27c;animation-delay:.8s}.rule-feature-art span:nth-child(5){transform:translateY(-5px);border-color:#a5e9dd;box-shadow:0 0 25px #8fe2d422,0 7px 0 #0b161c}.rule-open button:focus-visible{outline:3px solid #a8f1e2;outline-offset:3px}@keyframes rg-correct{50%{transform:scale(1.05)}}@keyframes rg-float{50%{transform:translateY(-6px) rotate(2deg)}}@media(max-width:900px){.rule-feature{margin:18px 24px 30px;padding:26px;grid-template-columns:1fr}.rule-feature-art{display:none}.game-grid:has(.rule-card){grid-template-columns:repeat(2,minmax(0,1fr))}.rg-candidate-grid{gap:7px}.rg-glyph{font-size:clamp(16px,2.8vw,27px)}}@media(max-width:620px){#modal.rule-open{padding:16px 12px;width:calc(100vw - 12px);max-height:96dvh}.rg-example-columns{gap:7px}.rg-example-columns section{padding:8px}.rg-example-grid{gap:9px 5px}.rg-candidate-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.rg-candidate-grid .rg-card{aspect-ratio:1}.rg-glyph{font-size:25px}.rg-card small{font-size:8px}.rg-actions{grid-template-columns:1fr}.rg-hint{padding:10px}.rg-hud{padding:11px 8px;letter-spacing:.3px}.rg-hud b{font-size:13px}.rg-lives{font-size:14px!important}.rg-instruction{font-size:11px}.rg-menu-stats{gap:15px}.rg-menu-stats b{font-size:23px}.rg-demo .rg-card-wrap{width:64px}.rg-demo .rg-card{min-height:66px}.rg-demo .rg-glyph{font-size:20px}.rg-demo-label{font-size:9px;white-space:nowrap}.rg-intro>p{font-size:11px}.rg-example-columns h3{font-size:11px}.rg-example-tag{font-size:7px;padding:2px 5px}.rule-feature{margin:18px 16px 28px;padding:24px 20px;grid-template-columns:1fr}.rule-feature h2{font-size:30px}.rule-feature p{font-size:12px}.rule-feature .rg-actions-home{gap:8px}.rule-feature .rg-primary,.rule-feature .rg-secondary{min-width:0;flex:1}.game-grid:has(.rule-card){grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){.rule-feature-art span{animation:none}.rg-card,.rg-primary,.rg-secondary{transition:none}.rg-card.is-correct{animation:none}}