.r4a-ending-trainer{--navy:#0b1b3d;--cyan:#00a0d2;--bg:#f5f8fc;--line:#dce4ee;--text:#10203c;--muted:#6f7c90;--good:#16784c;--bad:#b33434;max-width:1180px;margin:0 auto;color:var(--text);font-family:inherit;direction:rtl}.r4a-ending-trainer *{box-sizing:border-box}.r4a-et-hero{background:linear-gradient(135deg,var(--navy),#123d7c);color:#fff;border-radius:24px;padding:28px 30px;box-shadow:0 16px 44px rgba(11,27,61,.13)}.r4a-et-eyebrow{font-size:13px;font-weight:900;color:#8de6ff;margin-bottom:6px}.r4a-et-hero h2{margin:0 0 8px!important;color:#fff!important;font-size:clamp(28px,4vw,44px);line-height:1.25}.r4a-et-hero p{margin:0;max-width:780px;color:#e9f1ff;font-size:17px;line-height:1.8}.r4a-et-stats{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.r4a-et-stats span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:8px 13px;font-size:13px}.r4a-et-stats strong{font-size:17px;margin-left:4px}.r4a-et-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:18px 0}.r4a-et-tabs button{border:1px solid var(--line);background:#fff;color:var(--navy);min-height:50px;border-radius:14px;font:inherit;font-weight:900;cursor:pointer;padding:8px}.r4a-et-tabs button.is-active{background:var(--navy);color:#fff;border-color:var(--navy)}.r4a-et-panel{display:none;background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 10px 30px rgba(11,27,61,.05)}.r4a-et-panel.is-active{display:block}.r4a-et-toolbar{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:10px;align-items:end;margin-bottom:16px}.r4a-et-toolbar label span{display:block;font-size:12px;font-weight:900;color:var(--muted);margin-bottom:5px}.r4a-et-toolbar select,.r4a-et-toolbar button{min-height:46px;width:100%;border-radius:12px;font:inherit;font-size:16px}.r4a-et-toolbar select{border:1px solid var(--line);background:#fff;color:var(--text);padding:0 12px}.r4a-et-primary,.r4a-et-secondary,.r4a-et-danger,.r4a-et-link{font:inherit;font-weight:900;cursor:pointer;border-radius:12px;padding:11px 16px}.r4a-et-primary{border:0;background:var(--navy);color:#fff!important}.r4a-et-secondary{border:0;background:#e9f1fa;color:var(--navy)}.r4a-et-danger{border:1px solid #efc4c4;background:#fff1f1;color:#a62222}.r4a-et-link{border:0;background:transparent;color:#087ca4;text-decoration:underline}.r4a-et-quiz{border:1px solid var(--line);border-radius:18px;padding:20px;background:linear-gradient(#fff,#fbfdff)}.r4a-et-progressline{display:flex;gap:12px;align-items:center;font-size:12px;font-weight:900;color:var(--muted)}.r4a-et-progressline>b{height:7px;background:#e5edf5;border-radius:99px;flex:1;overflow:hidden}.r4a-et-progressline i{display:block;height:100%;background:var(--cyan);width:0;transition:width .2s}.r4a-et-source{margin:13px 0 4px;color:#67819b;font-size:12px}.r4a-et-instruction{font-weight:900;color:var(--navy);margin:12px 0 7px}.r4a-et-cue{display:inline-flex;align-items:center;gap:7px;background:#eaf8fd;border:1px solid #bde5f3;color:#075f7d;border-radius:999px;padding:6px 11px;font-weight:900;margin-bottom:9px}.r4a-et-cue b{direction:ltr}.r4a-et-russian{direction:ltr;text-align:left;font-family:Arial,"Noto Sans",sans-serif;font-size:clamp(24px,4vw,35px);font-weight:800;line-height:1.55;background:#f4f8fc;border:1px solid var(--line);padding:18px;border-radius:16px;overflow-wrap:anywhere}.r4a-et-russian mark{background:#d9f4ff;color:#073b60;border-radius:6px;padding:1px 4px}.r4a-et-arabic{font-size:15px;color:var(--muted);line-height:1.8;margin:10px 4px 15px}.r4a-et-inputrow{display:grid;grid-template-columns:1fr auto;gap:9px}.r4a-et-inputrow input{min-width:0;border:2px solid #cbd9e7;border-radius:13px;padding:11px 13px;font:700 20px Arial,"Noto Sans",sans-serif;color:var(--navy);background:#fff;outline:none;font-size:20px}.r4a-et-inputrow input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,160,210,.1)}.r4a-et-inputrow input.is-good{border-color:#6bbc92;background:#f2fbf6}.r4a-et-inputrow input.is-bad{border-color:#df9999;background:#fff6f6}.r4a-et-feedback{margin-top:14px;border-radius:14px;padding:14px 16px;line-height:1.75}.r4a-et-feedback.good{background:#effaf4;border:1px solid #b9e4cb}.r4a-et-feedback.bad{background:#fff5f5;border:1px solid #efc3c3}.r4a-et-feedback h4{margin:0 0 5px!important;font-size:17px}.r4a-et-feedback p{margin:5px 0;color:#334c66}.r4a-et-change{direction:ltr;text-align:left;background:#fff;border-radius:10px;padding:10px 12px;font:800 18px Arial,"Noto Sans",sans-serif;margin:8px 0}.r4a-et-change del{color:#aa3131;text-decoration-thickness:2px}.r4a-et-change ins{color:#13784b;text-decoration:none;background:#e7f8ef;border-radius:4px;padding:1px 3px}.r4a-et-answerline{direction:ltr;text-align:left;font-family:Arial,"Noto Sans",sans-serif;font-size:18px;font-weight:900}.r4a-et-actions{display:flex;justify-content:space-between;align-items:center;margin-top:12px;gap:10px}.r4a-et-section-head{display:flex;gap:20px;align-items:flex-end;justify-content:space-between;margin-bottom:18px}.r4a-et-section-head small{font-weight:900;color:var(--cyan)}.r4a-et-section-head h3{margin:2px 0 0!important;color:var(--navy)!important;font-size:26px}.r4a-et-section-head p{max-width:580px;margin:0;color:var(--muted);line-height:1.8}.r4a-et-mistake-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:14px}.r4a-et-mistake{border:1px solid var(--line);border-radius:15px;padding:13px;background:#fbfdff}.r4a-et-mistake b{display:block;color:var(--navy);direction:ltr;text-align:left}.r4a-et-mistake span{font-size:12px;color:var(--muted)}.r4a-et-empty{padding:18px;border:1px dashed #cbd8e5;border-radius:14px;color:var(--muted);text-align:center}.r4a-et-pattern-filters{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:13px}.r4a-et-chip{border:1px solid var(--line);background:#fff;color:var(--navy);border-radius:999px;padding:7px 11px;font:inherit;font-size:13px;font-weight:900;cursor:pointer}.r4a-et-chip.is-active{background:var(--navy);color:#fff;border-color:var(--navy)}.r4a-et-pattern-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.r4a-et-pattern{border:1px solid var(--line);border-radius:15px;padding:13px;background:#fff}.r4a-et-pattern .shift{direction:ltr;text-align:left;font:900 19px Arial,"Noto Sans",sans-serif;color:var(--navy)}.r4a-et-pattern .example{direction:ltr;text-align:left;margin-top:7px;background:#f5f8fb;border-radius:8px;padding:7px 9px;font-family:Arial,"Noto Sans",sans-serif}.r4a-et-pattern small{display:block;color:var(--muted);margin-top:6px}.r4a-et-rules{margin-top:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.r4a-et-rule{border:1px solid var(--line);border-radius:15px;padding:14px}.r4a-et-rule h4{margin:0 0 6px!important;color:var(--navy)!important;font-size:16px}.r4a-et-rule p{margin:0;color:#526b82;line-height:1.7}.r4a-et-rule .memory{margin-top:7px;background:#f5f8fb;border-radius:8px;padding:8px 9px;font-weight:800}.r4a-et-progress-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.r4a-et-progress-card{border:1px solid var(--line);border-radius:16px;padding:14px;background:#fbfdff}.r4a-et-progress-card b{display:block;color:var(--navy)}.r4a-et-progress-card strong{font-size:28px;color:var(--cyan)}.r4a-et-progress-card span{display:block;font-size:12px;color:var(--muted)}.r4a-et-progress-card .mini{height:6px;background:#e5edf5;border-radius:99px;overflow:hidden;margin-top:9px}.r4a-et-progress-card .mini i{display:block;height:100%;background:var(--cyan)}.r4a-et-progress-actions{margin-top:16px}@media(max-width:820px){.r4a-et-toolbar{grid-template-columns:1fr 1fr}.r4a-et-pattern-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.r4a-ending-trainer{width:100%;max-width:100%}.r4a-et-hero{border-radius:18px;padding:20px 17px}.r4a-et-hero p{font-size:15px}.r4a-et-tabs{grid-template-columns:1fr 1fr}.r4a-et-panel{padding:14px;border-radius:17px}.r4a-et-toolbar{grid-template-columns:1fr}.r4a-et-russian{font-size:24px;padding:14px}.r4a-et-inputrow{grid-template-columns:1fr}.r4a-et-inputrow input{font-size:18px;min-height:50px}.r4a-et-inputrow .r4a-et-primary{min-height:48px}.r4a-et-section-head{display:block}.r4a-et-section-head p{margin-top:7px}.r4a-et-mistake-list,.r4a-et-pattern-grid,.r4a-et-rules,.r4a-et-progress-grid{grid-template-columns:1fr}.r4a-et-actions{align-items:stretch}.r4a-et-actions .r4a-et-primary{flex:1}.r4a-et-stats{gap:6px}.r4a-et-stats span{font-size:12px;padding:7px 10px}}
/* v1.1.0 — course level / watched lesson scope */
.r4a-et-course-scope{border:1px solid #cfe5ef;background:linear-gradient(180deg,#f5fbfe,#fff);border-radius:18px;padding:16px;margin-bottom:16px}.r4a-et-course-scope-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:13px}.r4a-et-course-scope-head small{display:block;color:var(--cyan);font-weight:900;margin-bottom:3px}.r4a-et-course-scope-head h3{margin:0 0 4px!important;color:var(--navy)!important;font-size:19px}.r4a-et-course-scope-head p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}.r4a-et-course-summary{min-width:170px;background:var(--navy);color:#fff;border-radius:14px;padding:10px 12px;text-align:center}.r4a-et-course-summary strong{display:block;font-size:25px;line-height:1}.r4a-et-course-summary span{display:block;font-size:12px;font-weight:900;margin-top:3px}.r4a-et-course-summary small{display:block;color:#b9dbed;font-size:10px;margin-top:5px}.r4a-et-watched-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.r4a-et-watched-grid label span{display:block;font-size:11px;font-weight:900;color:#536d84;margin-bottom:4px}.r4a-et-watched-grid select{width:100%;min-height:42px;border:1px solid var(--line);background:#fff;border-radius:11px;padding:0 8px;color:var(--navy);font:inherit;font-size:13px}.r4a-et-scope-note{margin-top:10px;color:#6a7c8f;font-size:11px;line-height:1.7}.r4a-et-toolbar{grid-template-columns:1fr 1fr 1fr 1fr auto}.r4a-et-level-progress.is-locked{opacity:.62}.r4a-et-level-progress.is-open{border-color:#c7e7f2;background:#f7fcff}
@media(max-width:980px){.r4a-et-watched-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.r4a-et-toolbar{grid-template-columns:1fr 1fr 1fr}}
@media(max-width:620px){.r4a-et-course-scope{padding:13px}.r4a-et-course-scope-head{display:block}.r4a-et-course-summary{margin-top:10px;width:100%}.r4a-et-watched-grid{grid-template-columns:1fr 1fr}.r4a-et-toolbar{grid-template-columns:1fr}.r4a-et-watched-grid select{font-size:16px}}