/* Independent Studio 2.1 modules; original theme remains unchanged. */
.studio21{padding-bottom:30px}
.studio21 h3{margin:20px 0 14px;line-height:1.5}
.studio21 p{line-height:1.85}
.s21-status,.s21-filter{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:18px 0}
.s21-status>span{flex:1;min-width:220px;font-size:13px;color:var(--green)}
.s21-backups{padding:20px;background:#edf1e5;border:1px solid var(--line);border-radius:16px;margin:20px 0}
.s21-backups p{font-size:13px;color:var(--ink)}
.s21-nav{display:flex;gap:12px;border:0;margin-bottom:25px}
.s21-nav button{flex:1;font-size:14px}
.studio21 form{padding:24px;border:1px solid var(--line);background:#fffef9;border-radius:16px;margin:18px 0}
.studio21 label{margin:16px 0 8px;font-size:14px;min-width:0}
.studio21 select{max-width:100%;width:100%;margin-top:8px;font-size:16px}
.studio21 input,.studio21 textarea{font-size:16px}
.studio21 textarea{display:block;resize:vertical;width:100%;min-height:120px;margin-top:10px;padding:14px;border:1px solid var(--line);border-radius:10px;background:white;color:var(--ink);font:16px/1.8 -apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;box-sizing:border-box}
.studio21 textarea:focus{outline:2px solid #99b28b;outline-offset:1px}
.studio21 textarea[readonly]{background:#f1f3eb}
.studio21 textarea:disabled{opacity:.6}
.s21-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
#s21-original,#s21-revised{min-height:330px;font-family:Georgia,serif;line-height:1.9}
.studio21 fieldset{border:1px solid var(--line);border-radius:12px;margin:22px 0;padding:18px;min-width:0}
.studio21 legend{font-size:15px;color:var(--green);padding:0 8px}
.s21-card{background:#fffef9;border:1px solid var(--line);border-radius:14px;padding:22px;margin:16px 0;overflow-wrap:anywhere}
.studio21 details{margin:12px 0}
.studio21 summary{cursor:pointer;min-height:44px;line-height:1.7;padding:10px 0;color:var(--green)}
.studio21 .s21-pre{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--ink);font-size:15px}
.s21-card button{margin:12px 10px 0 0;font-size:13px}
#s21-practice{padding:24px;border:2px solid #8ba97c;border-radius:16px;background:#f1f5e9;margin:22px 0}
#s21-practice button{margin:12px 10px 0 0}
.s21-filter label{min-width:220px}
#s21-entry{font-size:13px;line-height:1.5}
@media(max-width:760px){.s21-columns{grid-template-columns:1fr;gap:4px}.studio21 form,.s21-card,#s21-practice{padding:18px}.s21-nav{flex-wrap:wrap}.s21-nav button{flex:1 0 40%}#s21-original,#s21-revised{min-height:250px}}