.practice-preview-version{text-align:center;color:#526276;background:#edf5f8;margin:0;padding:6px 20px;font-size:12px}.practice-page{background:var(--background);min-height:100vh;color:var(--foreground)}.practice-container{width:min(1160px,100% - 40px);margin:auto;padding-bottom:64px}.practice-header{z-index:40;background:var(--background);border-bottom:1px solid var(--border);color:var(--foreground);position:sticky;top:0}.practice-header-inner{justify-content:space-between;align-items:center;gap:18px;max-width:1200px;margin:auto;padding:16px 24px;display:flex}.practice-brand{white-space:nowrap;align-items:center;gap:10px;font-size:22px;font-weight:800;display:flex}.practice-brand img{object-fit:contain;width:34px;height:34px}.practice-header nav{align-items:center;gap:24px;font-size:14px;font-weight:650;display:flex}.practice-header a:hover{text-decoration:underline}.practice-skip{position:absolute;top:-100px;left:10px}.practice-skip:focus{z-index:50;background:var(--background);padding:12px;top:8px}.practice-page :focus-visible,.practice-header :focus-visible{outline:3px solid var(--primary);outline-offset:4px}.practice-primary,.practice-secondary{cursor:pointer;min-height:46px;font:inherit;border:1px solid var(--primary);border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:12px 18px;font-weight:700;text-decoration:none;display:inline-flex}.practice-primary{background:var(--primary);color:var(--primary-foreground)}.practice-secondary{background:var(--card);color:var(--foreground);border-color:var(--border)}.practice-page button:disabled{opacity:.55;cursor:default}.practice-page [hidden]{display:none!important}.practice-intro{max-width:800px;padding:55px 0 30px}.practice-eyebrow{letter-spacing:.12em;color:var(--primary);margin-bottom:12px;font-size:12px;font-weight:800;display:block}.practice-page h1{letter-spacing:-.04em;overflow-wrap:anywhere;margin:0 0 20px;font-size:clamp(34px,5vw,56px);font-weight:800;line-height:1.08}.practice-page h2{margin:0 0 16px;font-size:26px;font-weight:750;line-height:1.25}.practice-page h3{margin:0 0 12px;font-size:20px;font-weight:700;line-height:1.3}.practice-page p{margin:0 0 16px;line-height:1.65}.practice-intro>p{color:var(--muted-foreground);font-size:18px}.practice-finder{border:1px solid var(--border);background:var(--card);border-radius:20px;padding:22px}.practice-finder label,.practice-setup>label{margin-bottom:8px;font-weight:650;display:block}.practice-finder input,.practice-text-answer,.practice-setup select{width:100%;min-width:0;min-height:50px;font:inherit;background:var(--background);border:1px solid var(--border);color:var(--foreground);border-radius:12px;padding:12px 14px}.practice-filters{flex-wrap:wrap;gap:8px;display:flex}.practice-finder .practice-filters{margin-top:16px}.practice-filters button{border:1px solid var(--border);background:var(--card);min-height:44px;color:var(--muted-foreground);font:inherit;cursor:pointer;border-radius:24px;padding:9px 15px;font-weight:600}.practice-filters button[aria-pressed=true]{background:var(--primary);color:var(--primary-foreground);border-color:var(--primary)}.practice-catalog{padding:35px 0}.practice-catalog-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:22px;display:flex}.practice-catalog-heading h2{margin-bottom:3px}.practice-catalog-heading p{color:var(--muted-foreground);margin:0;font-size:14px}.practice-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.practice-topic-list{flex-wrap:wrap;gap:8px;display:flex}.practice-topic-link{border:1px solid var(--border);background:var(--card);max-width:100%;min-height:44px;color:var(--foreground);border-radius:10px;align-items:center;gap:8px;padding:10px 14px;font-size:14px;font-weight:650;text-decoration:none;display:inline-flex}.practice-topic-link:hover{border-color:var(--primary);background:var(--secondary)}.practice-topic-level{color:var(--muted-foreground);white-space:nowrap;font-size:12px;font-weight:500}.practice-card{background:var(--card);border:1px solid var(--border);border-radius:20px;flex-direction:column;min-width:0;padding:24px;display:flex}.practice-card p{color:var(--muted-foreground)}.practice-card-top{justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px;display:flex}.practice-icon{background:var(--secondary);width:48px;height:48px;color:var(--secondary-foreground);border-radius:13px;place-items:center;font-weight:800;display:grid}.practice-tag{border:1px solid var(--border);white-space:nowrap;border-radius:24px;padding:6px 9px;font-size:12px}.practice-card-link{color:var(--primary);text-underline-offset:4px;margin-top:auto;padding-top:18px;font-weight:700;text-decoration:underline}.practice-empty{text-align:center;padding:45px 20px}.practice-teacher-cta{background:var(--secondary);color:var(--secondary-foreground);border-radius:20px;justify-content:space-between;align-items:center;gap:28px;padding:28px;display:flex}.practice-teacher-cta h2{font-size:24px}.practice-teacher-cta p{max-width:650px;margin:0}.practice-teacher-cta a{flex-shrink:0}.practice-footer{border-top:1px solid var(--border);text-align:center;color:var(--muted-foreground);padding:30px 20px;font-size:13px}.practice-session{max-width:860px;padding-top:35px}.practice-back{color:var(--primary);text-underline-offset:3px;margin:0 0 28px;font-weight:650;text-decoration:underline;display:block}.practice-setup{background:var(--card);border:1px solid var(--border);border-radius:20px;max-width:660px;padding:26px}.practice-setup fieldset{border:1px solid var(--border);border-radius:12px;margin-bottom:20px;padding:16px}.practice-setup legend{padding:0 6px;font-weight:700}.practice-radio{align-items:center;gap:10px;min-height:44px;font-weight:600;display:flex!important}.practice-page input[type=radio],.practice-page input[type=checkbox]{accent-color:var(--primary);flex-shrink:0;width:20px;height:20px}.practice-setup select{margin-bottom:20px}.practice-mode-help{color:var(--muted-foreground);font-size:14px}.practice-question{background:var(--card);border:1px solid var(--border);border-radius:20px;margin:22px 0;padding:26px}.practice-question-count{color:var(--muted-foreground);font-size:13px;font-weight:650}.practice-options{border:0;gap:12px;min-width:0;margin:0;padding:0;display:grid}.practice-option{border:1px solid var(--border);cursor:pointer;border-radius:12px;align-items:center;gap:12px;padding:15px;display:flex}.practice-option:has(input:checked){border-color:var(--primary);background:var(--secondary)}.practice-question .practice-secondary{margin-top:16px}.practice-answer-zone,.practice-tokens{border:1px dashed var(--border);border-radius:12px;flex-wrap:wrap;gap:10px;min-height:62px;margin-bottom:16px;padding:14px;display:flex}.practice-answer-zone button,.practice-tokens button{border:1px solid var(--border);background:var(--background);min-height:44px;font:inherit;cursor:pointer;border-radius:10px;padding:10px 14px;font-weight:650}.practice-answer-zone button{background:var(--secondary)}.practice-order-help{color:var(--muted-foreground);font-size:13px}.practice-hint{background:var(--secondary);border-radius:12px;padding:16px;margin-top:16px!important}.practice-feedback:empty{display:none}.practice-feedback{background:var(--secondary);border-radius:12px;padding:16px;margin-top:18px!important}.practice-correct{border-left:4px solid var(--primary)}.practice-actions{flex-wrap:wrap;justify-content:space-between;gap:16px;margin:20px 0 32px;display:flex}.practice-session progress{width:100%;height:10px;accent-color:var(--primary)}.practice-score{color:var(--primary);margin:24px 0;font-size:60px;font-weight:800;display:block}.practice-review{margin-top:24px;padding-left:22px;list-style:decimal}.practice-review li{background:var(--card);border:1px solid var(--border);overflow-wrap:anywhere;border-radius:16px;margin-bottom:18px;padding:22px}.practice-result>h2:not(:first-child){margin-top:40px}.practice-lesson{padding-top:30px}.practice-lesson>section,.practice-lesson>#lesson-explanation>section{border-bottom:1px solid var(--border);padding:40px 0}.practice-lesson li{line-height:1.9}.practice-lesson em{color:var(--primary);font-style:normal}.practice-lesson ul{padding-left:22px;list-style:outside}.practice-lesson section[id]{scroll-margin-top:110px}.practice-examples{border-left:3px solid;padding-left:28px}.practice-mistake{margin-bottom:22px}.practice-built-sentence{font-size:32px}.practice-builder .practice-filters{margin:12px 0 24px}@media(max-width:850px){.practice-grid{grid-template-columns:1fr 1fr}.practice-teacher-cta{flex-direction:column;align-items:flex-start}.practice-header-inner{flex-wrap:wrap}.practice-header nav{gap:18px}.practice-catalog-heading{flex-direction:column;align-items:flex-start}}@media(max-width:560px){.practice-container{width:calc(100% - 32px)}.practice-header-inner{gap:10px;padding:12px 16px}.practice-brand{font-size:18px}.practice-brand img{width:28px;height:28px}.practice-header nav{justify-content:space-between;gap:12px;width:100%;font-size:13px}.practice-header nav .practice-primary{min-height:40px;padding:8px 13px}.practice-intro{padding-top:32px}.practice-grid{grid-template-columns:1fr}.practice-question,.practice-setup,.practice-finder{padding:20px}.practice-actions{flex-direction:column-reverse;align-items:stretch}.practice-session{padding-top:26px}.practice-teacher-cta{padding:22px}.practice-teacher-cta a{width:100%}.practice-built-sentence{font-size:25px}}.practice-shared-instructions{color:#142849;background:#edf5f8;border-left:3px solid #087c73;border-radius:0 10px 10px 0;margin:18px 0 24px;padding:12px 18px}.practice-shared-instructions p{margin:5px 0;font-size:15px;line-height:1.5}.practice-item-clue{color:#526276;margin:8px 0 16px;font-size:14px;line-height:1.5;display:block}