/* Study surfaces inherit the confirmed Conversation Workshop tokens. */
.ru-vi-study-entry{margin:24px 0 0;padding:24px 0;border-top:1px solid var(--card-border)}.ru-vi-study-entry h3{font-size:22px}.ru-vi-study-entry>div{display:flex;gap:12px;flex-wrap:wrap}.ru-vi-study-entry p{color:var(--ink-soft);max-width:65ch}
.ru-vi-study-overview{max-width:960px}.ru-vi-study-group{margin:30px 0}.ru-vi-study-group h3{margin-bottom:16px}.ru-vi-study-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.ru-vi-study-list>button{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:20px;min-height:44px;text-align:left;border:1px solid var(--card-border);border-radius:16px;background:var(--card);color:var(--ink);font:inherit;cursor:pointer}.ru-vi-study-list>button:hover{background:var(--accent-bg)}.ru-vi-study-list strong{font-size:19px;line-height:1.4}.ru-vi-study-list span{font-size:15px;color:var(--ink-soft);line-height:1.65}.ru-vi-study-list small{font-size:13px;color:var(--ink-soft);margin-top:auto}
.ru-vi-study-stage{max-width:800px;padding:28px;border:1px solid var(--card-border);border-radius:18px;background:var(--card);margin:24px 0}.ru-vi-study-heading h3{font-size:28px;line-height:1.4;margin:18px 0 12px}.ru-vi-study-heading>p{color:var(--ink-soft)}.ru-vi-study-reference{margin:24px 0;padding:16px 0;border-block:1px solid var(--card-border)}.ru-vi-study-reference>summary,.ru-vi-study-sources>summary{min-height:44px;display:list-item;cursor:pointer;color:var(--accent);font-weight:650;line-height:1.7;padding:8px 0}.ru-vi-study-guide-part{margin:24px 0}.ru-vi-study-guide-part h4{font-size:19px;margin:0 0 10px}.ru-vi-study-guide-part p{margin:0 0 12px;line-height:1.8}.ru-vi-study-examples{list-style:none;padding:0;display:flex;gap:10px;flex-wrap:wrap}.ru-vi-study-examples li{padding:8px 12px;border:1px solid var(--card-border);border-radius:8px}.ru-vi-study-examples li>span{display:block}.ru-vi-study-examples [lang=vi]{font-size:21px;letter-spacing:0;line-height:1.8}.ru-vi-study-examples li>span+span{font-size:14px;color:var(--ink-soft)}
.ru-vi-study-stage progress{width:100%;height:9px;accent-color:var(--accent);margin:0 0 22px}.ru-vi-study-position{font-size:14px;color:var(--ink-soft)}.ru-vi-study-prompt{font-size:23px;line-height:1.55;margin:0 0 20px;letter-spacing:0}.ru-vi-study-options{display:grid;gap:12px}.ru-vi-study-options button{text-align:left;justify-content:flex-start;min-height:54px;font-size:17px;letter-spacing:0}.ru-vi-study-options .selected{background:var(--accent-bg);border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.ru-vi-study-actions{margin:24px 0}.ru-vi-study-reading{white-space:normal;border:0;margin:20px 0 26px;padding:20px;background:var(--accent-bg);border-radius:12px;font-size:21px;line-height:1.9;letter-spacing:0;color:var(--ink)}#study-help,.ru-vi-study-note{font-size:14px;color:var(--ink-soft);line-height:1.7}.ru-vi-study-note{margin-top:24px}.ru-vi-study-stage .ru-vi-answer-feedback{margin-top:20px}.ru-vi-study-stage [aria-invalid=true]{border-color:var(--warning)}.ru-vi-study-sources{margin:24px 0 0}.ru-vi-study-sources li{margin:18px 0;overflow-wrap:anywhere}.ru-vi-study-sources li p{font-size:13px;color:var(--ink-soft);line-height:1.7}.ru-vi-study-result{text-align:center}.ru-vi-study-result .ru-vi-study-heading,.ru-vi-study-result .ru-vi-study-sources{text-align:left}.ru-vi-study-result h4{font-size:26px}.ru-vi-study-result>.primary-btn,.ru-vi-study-result>.secondary-btn{margin:8px}
@media(max-width:700px){.ru-vi-study-list{grid-template-columns:1fr}.ru-vi-study-list>button{padding:18px}.ru-vi-study-stage{padding:20px}.ru-vi-study-heading h3{font-size:25px}.ru-vi-study-prompt{font-size:21px}.ru-vi-study-stage .ru-vi-answer-feedback{padding:16px}.ru-vi-study-actions .primary-btn{width:100%}.ru-vi-study-reading{font-size:20px;padding:16px}.ru-vi-study-entry>div{display:grid;grid-template-columns:1fr}.ru-vi-study-entry button{width:100%;text-align:left;justify-content:flex-start}}
.ru-vi-study-resource{display:inline-flex;align-items:center;min-height:44px;color:var(--accent);font-weight:600;text-underline-offset:4px;overflow-wrap:anywhere}