:root{--bg:#fff;--bg2:#f7f7f6;--bg3:#f5f5f5;--bg-info:#e6f1fb;--bg-ok:#eaf3de;--bg-warn:#faeeda;--bg-err:#fcebeb;--tx:#1a1a1a;--tx2:#6b6b6b;--tx3:#a0a09a;--tx-info:#185fa5;--tx-ok:#3b6d11;--tx-warn:#854f0b;--tx-err:#a32d2d;--bd:#0000001c;--bd2:#0003;--bd-info:#85b7eb;--bd-warn:#d4a843;--bd-err:#f09595;--r:8px;--rl:12px;--font:"Inter", "Noto Sans JP", system-ui, sans-serif;--mono:"JetBrains Mono", monospace;--acc:#1a1a1a;--acc-tx:#fff;--sidebar-w:210px;--topbar-h:50px;--bottomnav-h:64px}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:var(--font);color:var(--tx);background:var(--bg3);-webkit-tap-highlight-color:transparent;font-size:14px}.app{height:100%;display:flex;overflow:hidden}.screen{width:100%;height:100%;display:none}.screen.active{display:flex}.ico{flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.ico svg{display:block}.login-wrap{background:var(--bg3);justify-content:center;align-items:center;width:100%;min-height:100%;padding:20px;display:flex;position:relative}.login-card{background:var(--bg);border:1px solid var(--bd);border-radius:var(--rl);width:100%;max-width:380px;padding:28px 28px 24px}.login-logo{align-items:center;gap:10px;margin-bottom:6px;display:flex}.login-logo h1{flex-wrap:wrap;align-items:center;gap:2px;font-size:17px;font-weight:700;line-height:1.3;display:flex}.login-sub{color:var(--tx2);margin-bottom:20px;font-size:12px;line-height:1.5}.login-err{background:var(--bg-err);color:var(--tx-err);border-radius:var(--r);margin-bottom:12px;padding:8px 10px;font-size:12px;display:none}.login-hint{color:var(--tx3);text-align:center;margin-top:12px;font-size:11px}.login-topright{position:absolute;top:14px;right:16px}.login-divider{color:var(--tx3);align-items:center;gap:10px;margin:14px 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10px;font-size:12px}.btn-icon{border-radius:var(--r);min-width:34px;min-height:34px;padding:7px}.btn-danger{color:var(--tx-err);border-color:var(--bd-err)}.btn-danger:active{background:var(--bg-err)}.btn-warning{color:var(--tx-warn);border-color:var(--bd-warn)}.btn-warning:active{background:var(--bg-warn)}.btn-ghost{background:0 0;border-color:#0000}.btn-ghost:active{background:var(--bg2)}.lang-pill{border:1px solid var(--bd2);border-radius:var(--r);display:flex;overflow:hidden}.lang-opt{cursor:pointer;color:var(--tx2);background:var(--bg);-webkit-user-select:none;user-select:none;padding:5px 11px;font-size:12px;font-weight:600;transition:background .1s}.lang-opt.active{background:var(--acc);color:var(--acc-tx)}.admin-wrap{flex-direction:column;width:100%;height:100%;display:flex;position:relative}.topbar{background:var(--bg);border-bottom:1px solid var(--bd);height:var(--topbar-h);z-index:50;flex-shrink:0;justify-content:space-between;align-items:center;padding:0 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span{color:var(--tx2);font-size:11px}.ud-item{cursor:pointer;color:var(--tx);align-items:center;gap:8px;padding:10px 14px;font-size:13px;display:flex}.ud-item:active{background:var(--bg2)}.ud-item.danger{color:var(--tx-err)}.ud-divider{border:none;border-top:1px solid var(--bd)}.layout{flex:1;display:flex;position:relative;overflow:hidden}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--bg);border-right:1px solid var(--bd);flex-direction:column;flex-shrink:0;transition:transform .22s;display:flex;overflow-y:auto}.sidebar-section{padding:12px 8px 6px}.nav-lbl{color:var(--tx3);letter-spacing:.07em;text-transform:uppercase;padding:0 8px 5px;font-size:10px;font-weight:700}.nav-item{border-radius:var(--r);cursor:pointer;color:var(--tx2);-webkit-user-select:none;user-select:none;align-items:center;gap:9px;padding:9px 10px;font-size:13px;font-weight:500;transition:background 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(width<=640px){.hamburger{display:flex}.sidebar{z-index:110;position:absolute;top:0;bottom:0;left:0;transform:translate(-100%);box-shadow:4px 0 20px #00000026}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:none}.sidebar-overlay.open{display:block}.bottom-nav{display:flex}.table-wrap{display:none}.card-list{display:flex}.search-row{flex-direction:column}.search-row input,.search-row select{width:100%}.page-header{flex-wrap:wrap}.page-actions{width:100%;margin-top:8px}.modal-overlay{padding:0}.modal{border-radius:var(--rl) var(--rl) 0 0;max-width:100%}.field-row{grid-template-columns:1fr}.toast-container{bottom:72px}.topbar{height:var(--topbar-h);flex-wrap:nowrap;padding:0 8px;overflow:visible}.topbar-title span:last-child{display:none}.bn-item{white-space:normal;text-align:center;gap:1px;padding:0 2px;font-size:9px;overflow:visible}.bn-item span{white-space:normal;word-break:break-all;max-width:100%;line-height:1.2}.bottom-nav,.bottom-nav-inner{width:100%}.user-dropdown{max-width:calc(100vw - 16px);left:auto;right:0}}@media (width>=641px){.modal-overlay{align-items:center;padding:20px}.modal{border-radius:var(--rl);max-width:480px}.modal-drag{display:none}.stats-row{grid-template-columns:repeat(4,1fr)}}.sdk-grid{border:2px solid var(--tx);aspect-ratio:1;box-sizing:border-box;border-radius:4px;grid-template-columns:repeat(9,1fr);width:100%;max-width:100%;margin:4px auto 0;display:grid;overflow:hidden}.sdk-cell{aspect-ratio:1;border:none;border-right:1px solid var(--bd2);border-bottom:1px solid var(--bd2);text-align:center;width:100%;min-width:0;min-height:0;font-size:clamp(10px,3.5vw,16px);font-weight:700;font-family:var(--mono);color:var(--tx);background:var(--bg);cursor:pointer;-webkit-appearance:none;caret-color:#0000;outline:none;padding:0;transition:background .1s}.sdk-cell.sdk-cell-shaded{background:var(--bg2)}.sdk-cell:focus{color:#1d4ed8;z-index:1;background:#dbeafe;position:relative}.sdk-cell.sdk-cell-conflict{background:var(--bg-err)!important;color:var(--tx-err)!important}.sdk-cell:nth-child(9n){border-right:none}.sdk-cell:nth-child(n+73){border-bottom:none}.sdk-cell:nth-child(3n),.sdk-cell:nth-child(9n+3){border-right:2px solid var(--tx)}.sdk-cell:nth-child(n+19):nth-child(-n+27),.sdk-cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid var(--tx)}.sdk-cell-readonly{cursor:default;justify-content:center;align-items:center;display:flex}.sdk-cell-readonly.sdk-cell-given{color:var(--tx);font-weight:800}.sdk-cell-readonly.sdk-cell-solved{color:var(--tx-info);font-weight:700}.sdk-cell-readonly.sdk-cell-new{animation:.5s sdk-step-pop}@keyframes sdk-step-pop{0%{transform:scale(1.2);background:var(--bg-ok)!important}to{transform:scale(1)}}.steps-sim-progress{background:var(--bg2);border-radius:2px;height:4px;margin:10px 0 8px;overflow:hidden}.steps-sim-progress-bar{background:var(--tx-info);width:0%;height:100%;transition:width .2s linear}.steps-sim-controls{align-items:center;gap:6px;margin-bottom:8px;display:flex}.steps-sim-status{color:var(--tx2);min-height:34px;padding:6px 0;font-size:12px;line-height:1.5}.steps-list-rows{border-top:1px solid var(--bd2);max-height:160px;margin-top:4px;padding-top:6px;overflow-y:auto}.steps-list-row{border-bottom:1px solid var(--bd2);cursor:pointer;border-radius:4px;padding:4px 6px}.steps-list-row:hover{background:var(--bg2)}.steps-list-row.active{background:var(--bg-info)}.modal-check-play{max-width:520px}@media (width>=900px){.modal-check-play{max-width:880px}}.check-play-grid{grid-template-columns:1fr;gap:20px;display:grid}@media (width>=900px){.check-play-grid{grid-template-columns:minmax(0,1fr) 280px;align-items:start}}.check-play-tabs{gap:6px;margin-bottom:12px;display:flex}.check-play-tab{border:1px solid var(--bd2);border-radius:var(--r);background:var(--bg);color:var(--tx2);cursor:pointer;text-align:center;flex:1;padding:8px 12px;font-size:12px;font-weight:600}.check-play-tab.active{background:var(--acc);border-color:var(--acc);color:var(--acc-tx)}.check-play-tab-disabled{cursor:default;opacity:.4}.sdk-cell-play.sdk-cell-correct{color:var(--tx-ok);font-weight:700;background:var(--bg-ok)!important}.sdk-cell-play.sdk-cell-wrong{color:var(--tx-err);font-weight:700;background:var(--bg-err)!important}.sdk-cell-answer-view{color:var(--tx-ok)}.check-item{border-radius:var(--r);background:var(--bg2);border:1px solid var(--bd);align-items:center;gap:8px;margin-bottom:6px;padding:8px 10px;font-size:12px;display:flex}.check-item .check-dot{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:16px;height:16px;font-size:10px;font-weight:700;display:flex}.check-item.ok .check-dot{background:var(--bg-ok);color:var(--tx-ok)}.check-item.ng .check-dot{background:var(--bg-warn);color:var(--tx-warn)}.check-play-side-card{background:var(--bg);border:1px solid var(--bd2);border-radius:var(--r);margin-bottom:14px;padding:14px 16px}.check-play-side-card .cp-label{color:var(--tx2);letter-spacing:.05em;text-transform:uppercase;margin-bottom:10px;font-size:10px;font-weight:700}.check-play-info-row{border-bottom:1px solid var(--bd);justify-content:space-between;padding:6px 0;font-size:12px;display:flex}.check-play-info-row:last-child{border-bottom:none}#gm-check-mount{margin-top:-16px}#gm-check-mount .check-play-grid,#pool-check-mount .check-play-grid{grid-template-columns:470px minmax(0,1fr);gap:24px}#gm-check-mount .bottom-back-row,#pool-check-mount .bottom-back-row{border-top:0;padding-top:0}#gm-check-mount #bottom-back{color:#52525b;background:0 0;font-size:12px;font-weight:500}#gm-check-mount>.page-header,#pool-check-mount>.page-header{background:0 0;border-bottom:0;padding:8px 16px}#gm-check-mount>.page-header h3,#pool-check-mount>.page-header h3{font-size:13px}#gm-check-mount>.content{padding-top:8px}#gm-puzzles-mount>.puzzles-page-header--pack-detail{background:0 0;border-bottom:0;padding:8px 16px}#gm-puzzles-mount>.puzzles-page-header--pack-detail h3{font-size:13px}#gm-puzzles-mount>.puzzles-page-header--pack-detail p{display:none}#gm-puzzles-mount .pack-detail-card{background:var(--bg);border:1px solid var(--bd);border-radius:var(--rl);margin-bottom:20px;padding:14px 18px}#gm-puzzles-mount .pack-detail-card-header{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;display:flex}#gm-puzzles-mount .pack-detail-card-name{font-size:16px;font-weight:700}#gm-puzzles-mount .pack-detail-card-meta{border-top:1px solid var(--bd);color:var(--tx2);flex-wrap:wrap;align-items:center;gap:24px;padding-top:10px;font-size:12px;display:flex}#gm-puzzles-mount .pack-detail-card-meta b{color:var(--tx)}#gm-puzzles-mount .pack-detail-card-separator{background:var(--bd2);width:1px;height:14px}#gm-puzzles-mount .pack-detail-summary{margin-bottom:14px}#gm-puzzles-mount .puzzles-filter-row--pack-detail .search-wrap{flex:360px}#gm-puzzles-mount .puzzles-filter-row--pack-detail select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='m4 6 4 4 4-4' stroke='%236B7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-position:right 10px center;background-repeat:no-repeat;flex:none;min-width:142px;padding:8px 36px 8px 12px}#gm-puzzles-mount .puzzles-bulk-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}#gm-puzzles-mount .puzzles-bulk-row .puzzles-sel-bar{flex:1}#gm-puzzles-mount .puzzles-bulk-row--pack-detail{justify-content:flex-start}#gm-puzzles-mount .puzzles-bulk-row--pack-detail .puzzles-sel-bar{border-color:var(--bd);flex:none;margin-bottom:0;padding:8px 14px}#gm-puzzles-mount .puzzles-bulk-row--pack-detail .btn:disabled{opacity:1;background:var(--bg)}#gm-puzzles-mount .puzzles-bulk-note{color:var(--tx3);white-space:nowrap;margin-left:8px;font-size:11px}#gm-puzzles-mount .puzzle-test-status{color:var(--tx2);align-items:center;gap:5px;font-size:12px;font-weight:600;display:inline-flex}#gm-puzzles-mount .puzzle-test-status .dot{width:7px;height:7px}#gm-puzzles-mount #puzzles-bottom-back{border-top:0;padding-top:0}#gm-puzzles-mount .puzzles-bottom-back-btn--pack-detail{color:var(--tx2);background:0 0;font-size:12px;font-weight:500}#gm-check-mount #grid-play .sdk-cell-play::placeholder,#pool-check-mount #grid-play .sdk-cell-play::placeholder{color:#d4d4d8;opacity:1;font-size:11px;font-weight:400}#gm-check-mount #grid-play .sdk-cell,#pool-check-mount #grid-play .sdk-cell{border-bottom-color:#94a3b8;border-right-color:#94a3b8}#gm-check-mount #grid-play .sdk-cell:nth-child(3n),#gm-check-mount #grid-play .sdk-cell:nth-child(9n+3),#pool-check-mount #grid-play .sdk-cell:nth-child(3n),#pool-check-mount #grid-play .sdk-cell:nth-child(9n+3){border-right-color:#94a3b8}#gm-check-mount #grid-play .sdk-cell:nth-child(n+19):nth-child(-n+27),#gm-check-mount #grid-play .sdk-cell:nth-child(n+46):nth-child(-n+54),#pool-check-mount #grid-play .sdk-cell:nth-child(n+19):nth-child(-n+27),#pool-check-mount #grid-play .sdk-cell:nth-child(n+46):nth-child(-n+54){border-bottom-color:#94a3b8}#gm-check-mount #grid-answer .sdk-cell,#pool-check-mount #grid-answer .sdk-cell{border-bottom-color:#94a3b8;border-right-color:#94a3b8}#gm-check-mount #grid-answer .sdk-cell:nth-child(3n),#gm-check-mount #grid-answer .sdk-cell:nth-child(9n+3),#pool-check-mount #grid-answer .sdk-cell:nth-child(3n),#pool-check-mount #grid-answer .sdk-cell:nth-child(9n+3){border-right-color:#94a3b8}#gm-check-mount #grid-answer .sdk-cell:nth-child(n+19):nth-child(-n+27),#gm-check-mount #grid-answer .sdk-cell:nth-child(n+46):nth-child(-n+54),#pool-check-mount #grid-answer .sdk-cell:nth-child(n+19):nth-child(-n+27),#pool-check-mount #grid-answer .sdk-cell:nth-child(n+46):nth-child(-n+54){border-bottom-color:#94a3b8}#gm-check-mount .check-play-answer-checks .check-item{background:#fafafa;border-color:#f1f1f3;border-radius:7px;gap:8px;margin-bottom:8px;padding:8px 10px}#gm-check-mount .check-play-answer-checks .check-item.ok .check-dot{color:#16a34a;background:#dcfce7}#gm-check-mount #check-side-panel .check-play-side-card,#pool-check-mount #check-side-panel .check-play-side-card{border:1px solid #e4e4e7;border-radius:12px;margin-bottom:16px;padding:18px 20px}#gm-check-mount #check-side-panel .check-play-side-card:first-child .check-play-info-row,#pool-check-mount #check-side-panel .check-play-side-card:first-child .check-play-info-row{border-bottom-color:#f1f1f3;padding:7px 0;font-size:13px}#gm-check-mount #check-side-panel .check-play-side-card:first-child .check-play-info-row>span:first-child,#pool-check-mount #check-side-panel .check-play-side-card:first-child .check-play-info-row>span:first-child{color:#71717a!important}#gm-check-mount #check-side-panel .check-play-side-card .cp-label,#pool-check-mount #check-side-panel .check-play-side-card .cp-label{color:#71717a;letter-spacing:.05em;margin-bottom:14px;font-size:11px}#gm-check-mount .pack-management-card .btn,#pool-check-mount .pack-management-card .btn{min-height:0;padding:8px 14px;font-size:12px;font-weight:500}.pack-management-card p strong{color:var(--tx);font-weight:700}#gm-check-mount .pack-operation-card .check-play-tabs,#pool-check-mount .pack-operation-card .check-play-tabs{gap:8px}#gm-check-mount .pack-operation-card .check-play-tab,#pool-check-mount .pack-operation-card .check-play-tab{color:#18181b;border-radius:7px;padding:8px 14px;font-weight:500}#gm-check-mount .pack-operation-card .check-play-tab.active,#pool-check-mount .pack-operation-card .check-play-tab.active{color:var(--acc-tx)}.pack-replace-modal{max-width:440px;padding:0;overflow:hidden}.pack-replace-body{padding:22px 24px}.pack-replace-body h4{margin-bottom:8px;font-size:15px;font-weight:700}.pack-replace-body>p{color:#52525b;font-size:13px;line-height:1.7}.pack-replace-id{font-family:var(--mono)}.pack-replace-summary{color:#3f3f46;background:#fafafa;border:1px solid #e4e4e7;border-radius:8px;margin-top:16px;padding:12px 14px;font-size:12px;line-height:1.8}.pack-replace-summary>div{justify-content:space-between;gap:16px;display:flex}.pack-replace-summary>div>span:first-child{color:#71717a}.pack-replace-note{margin-top:12px;color:#a1a1aa!important;font-size:11px!important;line-height:1.6!important}.pack-replace-actions{border-top:1px solid #f1f1f3;justify-content:flex-end;gap:8px;padding:16px 24px;display:flex}.pack-replace-actions .btn{min-height:0;padding:8px 14px;font-size:12px;font-weight:500}#pack-replace-confirm{color:#fff;background:#18181b;border-color:#18181b}.crumb-back{color:var(--tx2);cursor:pointer;align-items:center;gap:6px;font-size:15px;font-weight:400;display:inline-flex}.crumb-back:hover{color:var(--tx)}.crumb-sep{color:var(--tx3);margin:0 8px;font-weight:400}.inline-summary{color:#52525b;align-items:center;gap:16px;margin-bottom:14px;font-size:13px;display:flex}.inline-summary .is-item{align-items:center;gap:6px;display:inline-flex}.inline-summary b{color:#18181b;font-variant-numeric:tabular-nums;font-size:15px;font-weight:700}.inline-summary .is-sep{background:#d4d4d8;width:1px;height:14px}.packs-page-header--locked{background:0 0;border-bottom:0;padding:0 8px}.packs-page-header--locked+.content{flex:none;min-height:auto;padding:0 8px;overflow:visible}#gm-body.gm-body--pack-list,#gm-pack-mount{flex-direction:column;flex:none;min-height:auto;display:flex;overflow:visible}#gm-check-mount,#pool-check-mount,#pool-body{flex-direction:column;flex:1;min-height:0;display:flex}.packs-page-header--locked+.content #packs-table-wrap{flex:none}.packs-summary-row{justify-content:space-between;align-items:center;gap:16px;margin:18px 0 16px;display:flex}.packs-summary-row .inline-summary{margin-bottom:0}.packs-summary-actions{align-items:center;gap:6px;display:flex}.packs-summary-actions .btn{height:32px;min-height:32px;padding:5px 10px}.packs-summary-actions #btn-new-pack{font-weight:400}.dot{border-radius:50%;width:8px;height:8px;display:inline-block}.dot-on,.dot-done{background:#22c55e}.dot-off{background:#d4d4d8}.dot-warn{background:#f59e0b}.bottom-back-row{border-top:1px solid var(--bd);justify-content:flex-start;margin-top:24px;padding-top:16px;display:flex}#packs-bottom-back{border-top:0;margin-top:5px}#packs-bottom-back .btn{background:var(--bg2);color:var(--tx2);font-weight:400}.packs-footer{flex-shrink:0;margin-top:auto}.packs-guide-note{color:var(--tx2);background:#fafafa;border:1px solid #ececec;border-left:3px solid #a1a1aa;margin-top:20px;padding:10px 12px;font-size:11px;line-height:1.6}.packs-guide-note strong{color:var(--tx);font-weight:700}.gm-tabs{border-bottom:0;gap:2px;margin:-8px -4px 25px;padding:0 4px;display:flex}.gm-tab{color:var(--tx2);cursor:pointer;border-bottom:2px solid #0000;align-items:center;gap:7px;padding:10px 18px;font-size:13px;font-weight:500;display:flex}.gm-tab.active{color:var(--tx);border-bottom-color:var(--tx);font-weight:700}.gm-tab-cnt{background:var(--bg3);color:var(--tx2);border-radius:10px;padding:1px 7px;font-size:11px;font-weight:600}.gm-tab.active .gm-tab-cnt{background:var(--acc);color:var(--acc-tx)}.diff-card{background:var(--bg);border:1px solid var(--bd2);border-radius:var(--rl);cursor:pointer;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.diff-card:hover{background:var(--bg2);border-color:var(--tx3)}.diff-card-disabled{cursor:default;opacity:.55}.diff-card-disabled:hover{background:var(--bg);border-color:var(--bd2)}.diff-card-num{background:var(--bg3);width:28px;height:28px;color:var(--tx2);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.pass-wrap{align-items:center;display:flex;position:relative}.pass-wrap input{box-sizing:border-box;width:100%;padding-right:42px}.pass-toggle{cursor:pointer;color:var(--tx3);background:0 0;border:none;align-items:center;padding:4px;line-height:1;display:flex;position:absolute;top:50%;right:10px;transform:translateY(-50%)}.pass-toggle:hover{color:var(--tx)}#page-loader{z-index:9999;background:var(--bg);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}#page-loader.hidden{display:none}.page-loader-spinner{border:3px solid var(--bd2);border-top-color:var(--acc);border-radius:50%;width:40px;height:40px;animation:.7s linear infinite spin}.filter-row{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.filter-row select{border:1px solid var(--bd2);border-radius:var(--r);background:var(--bg);min-width:120px;color:var(--tx);font-size:13px;font-family:var(--font);-webkit-appearance:none;cursor:pointer;flex:1;padding:9px 11px}.packs-filter-row--locked .search-wrap{flex:360px}.packs-filter-row--locked select{text-align:left;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='m4 6 4 4 4-4' stroke='%236B7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;flex:none;min-width:0;padding:5px 36px 5px 12px}.page-header-right{align-items:flex-start;gap:12px;display:flex}.dashboard-toolbar{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.date-range-picker{align-items:center;gap:6px;display:flex}.difficulty-tabs{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.diff-tab{border:1px solid var(--bd);background:var(--bg);color:var(--tx2);cursor:pointer;font-size:13px;font-weight:500;font-family:var(--font);border-radius:20px;padding:6px 16px}.diff-tab:hover{border-color:var(--acc);color:var(--tx)}.diff-tab.active{color:#fff}.quick-range-btn{border:1px solid var(--bd);background:var(--bg);color:var(--tx2);cursor:pointer;font-size:12px;font-weight:500;font-family:var(--font);border-radius:20px;padding:5px 14px;transition:all .15s}.quick-range-btn:hover{border-color:var(--acc);color:var(--tx)}.quick-range-btn:active{opacity:.7}.dashboard-row{gap:12px;margin-bottom:16px;display:grid}.dashboard-row:not(.full-width){grid-template-columns:repeat(3,1fr)}.dashboard-row.full-width{grid-template-columns:1fr}.kpi-card{background:var(--bg);border:1px solid var(--bd);border-radius:var(--r);padding:16px 18px}.kpi-label{color:var(--tx2);text-transform:uppercase;letter-spacing:.03em;margin-bottom:8px;font-size:12px;font-weight:600}.kpi-value{font-size:26px;font-weight:700;line-height:1.2}.chart-card{background:var(--bg);border:1px solid var(--bd);border-radius:var(--r);padding:16px 18px}.chart-card.full-width{grid-column:1/-1}.chart-card.half{flex:1;min-width:0}.chart-title{color:var(--tx);margin-bottom:12px;font-size:13px;font-weight:600}.difficulty-metrics-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;display:grid}.loading-state{color:var(--tx3);align-items:center;gap:8px;font-size:13px;display:flex}.loading-state .spinner{border:2px solid var(--bd);border-top-color:var(--acc);border-radius:50%;width:16px;height:16px;animation:.6s linear infinite spin}.nav-item-expandable{align-items:center;display:flex}.nav-chevron{margin-left:auto;transition:transform .15s}.nav-chevron.open{transform:rotate(180deg)}.nav-sublist{display:none}.nav-sublist.open{display:block}.nav-subitem{padding-left:34px;font-size:13px}.rules-row{border-bottom:1px solid var(--bd);align-items:flex-start;gap:12px;padding:14px 0;display:flex}.rules-row:last-of-type{border-bottom:none}.rules-row .btn-icon{flex-shrink:0;margin-top:2px}.rules-slide-num{background:var(--bg2);width:22px;height:22px;color:var(--tx2);font-family:var(--mono);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;margin-top:1px;font-size:11px;display:flex}.rules-slide-num.fixed{color:var(--tx3);background:0 0;width:auto;font-size:13px}.rules-row-body{flex:1;min-width:0}.rules-row-top{align-items:center;gap:8px;margin-bottom:3px;display:flex}.rules-row-title{color:var(--tx);font-size:13.5px;font-weight:600}.rules-row-desc{color:var(--tx2);font-size:12.5px;line-height:1.5}.rules-field-title{color:var(--tx);font-size:13.5px;font-weight:600;font-family:var(--font);background:0 0;border:none;border-radius:4px;outline:none;width:100%;padding:2px 4px}.rules-field-title:focus{background:var(--bg2)}.rules-field-desc{color:var(--tx2);resize:vertical;width:100%;font-size:12.5px;line-height:1.5;font-family:var(--font);background:0 0;border:none;border-radius:4px;outline:none;padding:2px 4px}.rules-field-desc:focus{background:var(--bg2);color:var(--tx)}.rules-badge-select{cursor:pointer;font-size:11px;font-weight:700;font-family:var(--font);appearance:none;border:none;border-radius:100px;padding:3px 9px}.rules-save-bar{align-items:center;gap:10px;margin-top:14px;display:flex}.rules-dirty-dot{background:var(--tx-warn);border-radius:50%;width:6px;height:6px}.rules-save-state{color:var(--tx2);font-size:12px}#ai-gen-form .modal-actions{border-top:1px solid var(--bd);justify-content:flex-end;margin-top:12px;padding-top:12px}#ai-gen-form .modal-actions .btn{flex:none;width:auto;min-height:32px;padding:6px 12px;font-size:12px}#ai-gen-form .modal-hd{border-bottom:1px solid var(--bd);padding-bottom:16px}