:root{--bg: #f4f7fa;--panel: #ffffff;--ink: #0e2438;--muted: #5d7080;--accent: #1f6feb;--accent-soft: #e7f0ff;--ok: #1d8a4b;--ok-soft: #e2f5ea;--warn: #b54708;--border: #d9e1ea;--danger: #b42318;--radius: 10px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.45}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}header.app-header{background:var(--panel);border-bottom:1px solid var(--border);padding:16px 24px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}.app-title{font-size:20px;font-weight:700}.app-subtitle{color:var(--muted);font-size:13px}nav.tabs{display:flex;gap:6px;margin-left:auto}nav.tabs button{background:transparent;border:1px solid transparent;color:var(--ink);padding:8px 14px;border-radius:var(--radius);cursor:pointer;font-size:14px}nav.tabs button.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.user-block{display:flex;align-items:center;gap:8px}.user-block .user-name{font-weight:600}.lang-toggle{display:flex;gap:4px;background:var(--bg);border-radius:var(--radius);padding:3px;border:1px solid var(--border)}.lang-toggle button{background:transparent;border:none;padding:5px 12px;font-size:13px;border-radius:7px;cursor:pointer;text-transform:uppercase;color:var(--muted)}.lang-toggle button.active{background:var(--panel);color:var(--ink);font-weight:600}main{padding:24px;max-width:1100px;margin:0 auto}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:18px}.panel h2{margin:0 0 12px;font-size:18px}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.spread{justify-content:space-between}button.primary{background:var(--accent);color:#fff;border:none;padding:8px 14px;border-radius:var(--radius);cursor:pointer;font-size:14px}button.primary:hover{filter:brightness(1.05)}button.ghost{background:transparent;border:1px solid var(--border);padding:7px 12px;border-radius:var(--radius);cursor:pointer;font-size:13px;color:var(--ink)}button.ghost:hover{background:var(--bg)}button.danger{background:transparent;color:var(--danger);border:1px solid var(--danger);padding:6px 11px;border-radius:var(--radius);cursor:pointer;font-size:13px}button.danger:hover{background:#fdecea}input,select,textarea{font:inherit;padding:8px 10px;border-radius:var(--radius);border:1px solid var(--border);background:#fff;min-width:0}label.field{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);min-width:160px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);font-size:14px}th{font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}.card-list{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;cursor:pointer;transition:transform .05s,box-shadow .1s}.card:hover{box-shadow:0 2px 10px #0f243814;transform:translateY(-1px)}.card h3{margin:0 0 4px;font-size:16px}.card .meta{color:var(--muted);font-size:13px}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;background:var(--accent-soft);color:var(--accent);text-transform:uppercase;letter-spacing:.04em}.badge.beginner{background:#fff4d6;color:#946200}.badge.done{background:var(--ok-soft);color:var(--ok)}.progress-bar{background:var(--bg);border-radius:999px;height:8px;overflow:hidden;margin-top:6px}.progress-bar>div{background:var(--ok);height:100%;transition:width .2s}.exercise-row{display:flex;gap:14px;align-items:flex-start;padding:14px;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:10px;background:var(--panel)}.exercise-row.done{background:var(--ok-soft);border-color:#b5e3c6}.exercise-row .check{width:28px;height:28px;border-radius:50%;border:2px solid var(--border);flex-shrink:0;display:grid;place-items:center;cursor:pointer;background:#fff;font-size:15px;color:transparent}.exercise-row.done .check{border-color:var(--ok);background:var(--ok);color:#fff}.exercise-row .body{flex:1}.exercise-row .body h4{margin:0;font-size:15px}.exercise-row .body p{margin:4px 0 0;color:var(--muted);font-size:13px}.exercise-row .body .meta{margin-top:6px;font-size:12px;color:var(--muted)}.drill{margin-top:10px;padding:10px 12px;background:#fff7e1;border:1px solid #f1d99a;border-left:3px solid #c98c00;border-radius:8px;font-size:13px;color:#5c3d00;line-height:1.5}.drill-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:700;color:#946200;margin-bottom:4px;display:flex;align-items:center;gap:4px}.status-chip{padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--bg);color:var(--muted);border:1px solid var(--border);white-space:nowrap}.status-chip.done{background:var(--ok-soft);color:var(--ok);border-color:#b5e3c6}.status-chip.partial{background:#fff4d6;color:#946200;border-color:#f1d99a}.status-chip.muted-chip{font-style:italic}.exercise-badge{flex:0 0 auto;display:flex;align-items:flex-start}.exercise-badge .hex-badge{display:block}.badges-view{position:relative}.badges-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 12px;margin:-8px 0 16px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);position:sticky;top:0;z-index:10;box-shadow:0 1px 6px #0f24380d}.badges-toolbar .badges-title{margin:0;font-size:18px;flex:1}.badges-toolbar-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.badges-toolbar label.field.inline{flex-direction:row;align-items:center;gap:6px;min-width:0;margin:0}.back-button{white-space:nowrap}.badges-footer{margin-top:24px;padding-top:16px;border-top:1px dashed var(--border);display:flex;justify-content:center}.badges-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px;justify-items:center;align-items:start}.badge-cell{display:flex;justify-content:center}.hex-badge{filter:drop-shadow(0 2px 4px rgba(15,36,56,.12))}@media print{header.app-header,nav.tabs,.badges-toolbar,.badges-hint,.badges-footer,.modal-backdrop{display:none!important}body,main{background:#fff!important;padding:0!important;margin:0!important;max-width:none!important}@page{size:A4;margin:8mm}.badges-grid{grid-template-columns:repeat(3,60mm);gap:4mm;justify-content:center}.hex-badge{width:55mm!important;height:55mm!important;filter:none;page-break-inside:avoid;break-inside:avoid}.badge-cell{page-break-inside:avoid;break-inside:avoid}}@media (max-width: 720px){main{padding:14px 12px}header.app-header{padding:12px 14px;gap:10px;align-items:stretch}header.app-header>div:first-child{flex:1 1 auto}.app-subtitle{display:none}nav.tabs{margin-left:0;order:3;width:100%;overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;padding-bottom:2px}nav.tabs::-webkit-scrollbar{height:4px}nav.tabs button{flex:0 0 auto;padding:7px 12px;font-size:13px}.lang-toggle{order:2}.user-block{order:4;flex-wrap:wrap;gap:6px;width:100%;justify-content:flex-end}.user-block .user-name{font-size:14px}.panel{padding:14px 12px}.panel table,.panel thead,.panel tbody,.panel tr,.panel td{display:block;width:100%}.panel thead{display:none}.panel tr{border-bottom:1px solid var(--border);padding:10px 0}.panel tr:last-child{border-bottom:none}.panel td{border:none;padding:4px 0}.panel td:last-child{text-align:left!important;margin-top:6px;white-space:normal!important;display:flex;flex-wrap:wrap;gap:6px}.panel td:last-child button{flex:0 0 auto}.modal{width:calc(100vw - 16px);max-height:calc(100vh - 32px);overflow-y:auto;padding:16px}.modal .row{flex-direction:column;align-items:stretch;gap:8px}.modal .field{width:100%;min-width:0}.modal .actions{flex-wrap:wrap}.modal .actions button{flex:1 1 auto;min-width:100px}.exercise-row{padding:10px;gap:10px}.exercise-badge .hex-badge{width:56px!important;height:56px!important}.exercise-row .body h4{font-size:14px}.exercise-row .body p{font-size:13px}button.ghost,button.danger,button.primary{min-height:36px}input,select,textarea{width:100%}label.field{min-width:0}.row.spread{gap:8px}.card-list{grid-template-columns:1fr}.badges-toolbar{flex-direction:column;align-items:stretch;gap:8px}.badges-toolbar .badges-title{text-align:center;font-size:16px}.badges-toolbar-actions{flex-direction:column;align-items:stretch;gap:8px}.badges-toolbar-actions .field.inline{justify-content:space-between}.back-button{width:100%}.badges-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.badges-grid .hex-badge{width:100%!important;height:auto!important;max-width:200px}.panel .row{gap:8px}}@media (max-width: 380px){.app-title{font-size:17px}.exercise-badge .hex-badge{width:48px!important;height:48px!important}.badges-grid{grid-template-columns:1fr}}.error{color:var(--danger);margin:12px 0}.muted{color:var(--muted)}.small{font-size:12px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f243859;display:grid;place-items:center;z-index:100}.modal{background:var(--panel);border-radius:var(--radius);padding:20px;width:min(420px,90vw);box-shadow:0 8px 24px #0f24382e}.modal h3{margin:0 0 12px}.modal .actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}