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a{color:var(--color-primary);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease}.related-links a:hover,.related-links a:focus{color:var(--color-primary-dark)}@media(max-width:900px){.topics-how-wrapper{grid-template-columns:1fr;gap:32px}.topics-section,.how-it-works-section{margin-bottom:0;padding-top:0}.topics-section{border-top:1px solid var(--color-border);padding-top:32px}.topics-section h2:before,.how-it-works-section h2:before{display:block}}@media(max-width:640px){.grammar-practice-page{padding:40px 0 60px}.grammar-practice-page .container{padding:0 20px}.grammar-practice-page section{margin-bottom:48px;padding-top:24px}.grammar-practice-page h1{margin-bottom:20px}.grammar-practice-page h2{font-size:1.5rem}.grammar-practice-page h2:before{width:30px;height:2px}.interactive-demo-panel,.interactive-demo-panel.app-style{padding:24px 20px}.interactive-demo-panel.app-style .word-options{grid-template-columns:repeat(2,1fr)}.exercise-header{flex-direction:column;gap:8px}.english-example{padding:16px}.example-sentence{font-size:1rem}.sentence-builder{min-height:50px;padding:16px}.word-option{padding:8px 14px;font-size:.95rem}.word-explanation{min-height:60px;padding:16px}.how-it-works-step{padding:16px 18px;gap:14px}.how-it-works-step .step-num{width:32px;height:32px;font-size:.9rem}.how-it-works-extras{padding:20px}}