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var(--edu-line);background:rgba(255,255,255,.96)}.edu-brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-size:19px;font-weight:800;letter-spacing:.6px;flex-shrink:0}.edu-brand img{width:42px;height:42px}.edu-brand small{display:block;font-size:12px;font-weight:600;letter-spacing:1.8px;text-transform:uppercase;color:var(--edu-primary)}.edu-header-actions{display:flex;align-items:center;gap:20px;min-width:0}.edu-header-actions form{margin:0}.edu-back-site{font-size:12px;color:var(--edu-muted);text-decoration:none}.edu-user-pill{display:flex;align-items:center;gap:9px;font-size:13px;text-decoration:none;min-width:0}.edu-user-pill>span:last-child{max-width:200px;overflow-wrap:anywhere}.edu-user-pill small{display:block;font-size:11px;color:var(--edu-muted)}.edu-avatar{width:36px;height:36px;background:var(--edu-soft);color:var(--edu-primary);display:grid;place-items:center;border-radius:50%;font-weight:700;flex-shrink:0}.edu-shell{display:grid;grid-template-columns:224px minmax(0,1fr);max-width:1680px;margin:auto;min-height:calc(100vh - 82px)}.edu-sidebar{padding:36px 18px;border-right:1px solid var(--edu-line)}.edu-eyebrow{font-size:10px;letter-spacing:1.6px;text-transform:uppercase;font-weight:750;color:var(--edu-muted);margin-bottom:14px}.edu-sidebar .edu-eyebrow{padding:0 12px;font-size:9px}.edu-sidebar nav{display:grid;gap:5px}.edu-sidebar nav a{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:600;font-size:13px;padding:13px 12px;border-radius:12px;min-height:46px}.edu-sidebar nav a span{font-size:18px;width:20px;text-align:center;color:var(--edu-muted)}.edu-sidebar nav a:hover,.edu-sidebar nav 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17px;text-decoration:none;font-weight:650;font-size:13px;white-space:normal;text-align:center}.edu-button-primary{background:var(--edu-primary);border-color:var(--edu-primary);color:#fff;box-shadow:0 4px 10px #6752cc16}.edu-button:hover{filter:brightness(.97)}.edu-button-quiet{background:transparent;border-color:transparent}.edu-button-danger{color:#ad3246;background:#fff2f4;border-color:#f3d8dd}.edu-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.edu-actions form{margin:0}.edu-text-link{font-size:13px;font-weight:700;color:var(--edu-primary);text-decoration:none}.edu-badge{display:inline-flex;align-items:center;gap:5px;background:var(--edu-soft);color:var(--edu-primary);border-radius:7px;padding:5px 9px;font-size:10px;font-weight:750;line-height:1.4}.edu-badge-green{background:#e5f5ee;color:var(--edu-green)}.edu-badge-warm{background:#fff1dc;color:#98621b}.edu-small{font-size:12px;color:var(--edu-muted);line-height:1.6}.edu-form{display:grid;gap:18px}.edu-form label{display:grid;gap:7px;font-size:12px;font-weight:650;min-width:0}.edu-form input:not([type=checkbox]):not([type=radio]):not([type=color]),.edu-form select,.edu-form textarea{width:100%;min-width:0;border:1px solid #dcd9e8;border-radius:10px;min-height:46px;padding:11px 13px;background:#fff;color:var(--edu-ink);font-size:14px}.edu-form textarea{resize:vertical;min-height:110px;line-height:1.6}.edu-form small{font-size:11px;color:var(--edu-muted);font-weight:400}.edu-form .edu-check{display:flex;align-items:center;gap:12px;min-height:44px;font-size:14px}.edu-check input{width:20px;height:20px;accent-color:var(--edu-primary);flex:none}.edu-two-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.edu-narrow{max-width:650px;margin:24px auto}.edu-narrow>.edu-text-link{display:inline-block;margin-bottom:24px}.edu-narrow h1{font-size:32px}.edu-login-layout{display:grid;grid-template-columns:1fr 440px;gap:70px;max-width:1120px;margin:30px auto 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p{font-size:13px;min-height:42px}.edu-lesson-number{font-size:23px;font-weight:750;letter-spacing:-1px;color:var(--edu-primary)}.edu-notice{padding:14px 18px;border-radius:12px;background:#e6f4ee;color:#256f57;margin-bottom:20px;border:1px solid #c4e5d5;font-size:13px;overflow-wrap:anywhere}.edu-notice-error{background:#fff0f1;color:#a23142;border-color:#f1ced4}.edu-footer{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:10px;color:var(--edu-muted);margin-top:55px;padding-top:20px;border-top:1px solid var(--edu-line)}.edu-footer span{margin-right:auto}.edu-footer a{text-decoration:none}.edu-mobile-nav{display:none}.edu-empty{padding:36px;border:1px dashed #d7d2e8;border-radius:18px;background:#fcfbff;grid-column:1/-1}.edu-empty p{margin-bottom:18px}.edu-empty 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