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.2s}._input_1yjt2_82::placeholder{color:var(--text-muted);font-weight:400}._input_1yjt2_82:focus{border-bottom-color:#60c5f1}._passwordWrapper_1yjt2_105{align-items:flex-end;gap:12px;display:flex}._passwordWrapper_1yjt2_105 ._input_1yjt2_82{flex:1}._toggle_1yjt2_113{font-family:var(--font-mono);color:var(--text-muted);cursor:pointer;white-space:nowrap;letter-spacing:.05em;background:0 0;border:none;padding:8px 0;font-size:.72rem;font-weight:700;transition:color .2s}._toggle_1yjt2_113:hover{color:#60c5f1}._btn_1yjt2_129{color:#111d35;font-family:var(--font-display);letter-spacing:.04em;cursor:pointer;background:#60c5f1;border:none;margin:28px 40px 8px;padding:14px;font-size:1rem;font-weight:800;transition:all .2s;box-shadow:0 4px 20px #60c5f14d}._btn_1yjt2_129:hover:not(:disabled){background:#85d4f7;transform:translateY(-2px);box-shadow:0 6px 28px 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16px;font-size:.88rem;font-weight:600;line-height:1.4}._wrap_153lx_1{--heat-0:#1a2433;--heat-1:#43d9a247;--heat-2:#43d9a285;--heat-3:#60c5f1b8;--heat-4:#43d9a2;border-bottom:1px solid var(--border);background:radial-gradient(circle at 0 0,#43d9a20f,#0000 45%),#0000001f;padding:20px 32px}._title_153lx_15{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:#43d9a2;margin:0 0 14px;font-size:.78rem;font-weight:700}._calendarFrame_153lx_25{background:linear-gradient(160deg,#111d35b8,#080e1aeb);border:1px solid #43d9a261;border-radius:14px;padding:16px 18px 14px;position:relative;box-shadow:0 0 0 1px #60c5f11a,inset 0 1px #ffffff12,inset 0 0 28px #43d9a20a,0 10px 28px #00000047}._calendarFrame_153lx_25:before{content:"";pointer-events:none;border:1px solid #43d9a21f;border-radius:10px;position:absolute;inset:5px}._chart_153lx_48{z-index:1;width:100%;position:relative}._monthRow_153lx_54{grid-template-columns:repeat(var(--week-count), 1fr);gap:3px;margin-bottom:6px;display:grid}._monthLabel_153lx_61{font-family:var(--font-mono);color:#a8d4f0;white-space:nowrap;text-overflow:ellipsis;font-size:.62rem;font-weight:600;overflow:hidden}._grid_153lx_71{grid-template-columns:repeat(var(--week-count), 1fr);gap:3px;display:grid}._weekCol_153lx_77{grid-template-rows:repeat(7,1fr);gap:3px;display:grid}._cell_153lx_83{aspect-ratio:1;border:1px solid #ffffff0a;border-radius:3px;width:100%;transition:transform .15s,box-shadow .15s}._cell_153lx_83:hover{z-index:1;transform:scale(1.12);box-shadow:0 0 8px #43d9a273}._legend_153lx_97{z-index:1;font-family:var(--font-mono);color:#a8d4f0;border-top:1px solid #43d9a224;justify-content:flex-end;align-items:center;gap:4px;margin-top:14px;padding-top:12px;font-size:.62rem;font-weight:600;display:flex;position:relative}._legendCell_153lx_113{border:1px solid #ffffff0a;border-radius:3px;width:13px;height:13px}@media (width<=480px){._wrap_153lx_1{padding-left:24px;padding-right:24px}}._main_slnar_1{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;padding:100px 24px 48px;display:flex;position:relative}._main_slnar_1:before{content:"";z-index:0;pointer-events:none;background-image:radial-gradient(#60c5f10d 1px,#0000 1px);background-size:32px 32px;position:fixed;inset:0}._card_slnar_21{z-index:1;background:var(--bg-card);border:1px solid var(--border);border-radius:20px;width:100%;max-width:640px;position:relative;overflow:hidden;box-shadow:0 24px 64px #0006}._cardHeader_slnar_33{border-bottom:1px solid var(--border);padding:36px 40px 28px}._headerLine_slnar_38{background:#60c5f1;width:40px;height:3px;margin-bottom:20px}._title_slnar_45{font-family:var(--font-display);color:var(--text-primary);margin-bottom:6px;font-size:1.7rem;font-weight:900}._sub_slnar_53{color:var(--text-secondary);font-size:.9rem;font-weight:600;line-height:1.45}._profileHero_slnar_60{border-bottom:1px solid var(--border);background:radial-gradient(circle at 100% 0,#60c5f138,#0000 55%),radial-gradient(circle at 0 100%,#43d9a21f,#0000 50%),linear-gradient(135deg,#111d3533,#111d35a6);align-items:center;gap:20px;padding:32px 32px 28px;display:flex;position:relative;overflow:hidden}._heroGlow_slnar_74{filter:blur(24px);pointer-events:none;background:#60c5f124;border-radius:50%;width:180px;height:180px;position:absolute;inset:auto -40px -60px auto}._avatar_slnar_85{z-index:1;width:72px;height:72px;font-family:var(--font-display);color:#111d35;background:linear-gradient(145deg,#85d4f7,#60c5f1);border-radius:20px;flex-shrink:0;place-items:center;font-size:1.8rem;font-weight:900;display:grid;position:relative;box-shadow:0 10px 28px #60c5f159,inset 0 1px #ffffff59}._heroText_slnar_104{z-index:1;min-width:0;position:relative}._eyebrow_slnar_110{font-family:var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:#60c5f1;margin-bottom:8px;font-size:.68rem;font-weight:700;display:block}._heroName_slnar_121{font-family:var(--font-display);color:var(--text-primary);word-break:break-word;margin:0 0 6px;font-size:clamp(1.5rem,4vw,1.9rem);font-weight:900;line-height:1.1}._heroSub_slnar_131{color:var(--text-secondary);margin:0;font-size:.88rem;font-weight:600;line-height:1.45}._dashboard_slnar_139{gap:14px;padding:24px 32px 8px;display:grid}._progressCard_slnar_145,._infoCard_slnar_146{border:1px solid var(--border);background:#ffffff05;border-radius:16px}._progressCard_slnar_145{padding:18px 18px 16px}._progressTop_slnar_156{align-items:center;gap:18px;display:flex}._progressCopy_slnar_162{flex-direction:column;gap:4px;min-width:0;display:flex}._progressLabel_slnar_169,._infoLabel_slnar_170,._metaLabel_slnar_171{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:#a8d4f0;font-size:.74rem;font-weight:700}._progressLabel_slnar_169{letter-spacing:.12em;font-size:.68rem}._progressValue_slnar_185{font-family:var(--font-display);color:#60c5f1;font-size:1.35rem;font-weight:900;line-height:1.1}._progressPct_slnar_193{font-family:var(--font-mono);color:var(--text-secondary);font-size:.78rem;font-weight:700}._progressTrack_slnar_200{background:#ffffff14;border-radius:999px;height:8px;margin-top:16px;overflow:hidden}._progressFill_slnar_208{border-radius:inherit;background:linear-gradient(90deg,#43d9a2,#60c5f1);height:100%;transition:width .45s}._infoCard_slnar_146{align-items:center;gap:14px;padding:16px 18px;display:flex}._infoIcon_slnar_222{width:42px;height:42px;font-family:var(--font-display);color:#60c5f1;background:#60c5f11f;border:1px solid #60c5f138;border-radius:12px;flex-shrink:0;place-items:center;font-size:1.1rem;font-weight:800;display:grid}._infoCopy_slnar_237{flex-direction:column;gap:4px;min-width:0;display:flex}._infoLabel_slnar_170{letter-spacing:.12em;font-size:.68rem}._infoValue_slnar_249{font-family:var(--font-display);color:var(--text-primary);word-break:break-word;font-size:.98rem;font-weight:700}._metaLabel_slnar_171{letter-spacing:.12em;font-size:.72rem}._badgesSection_slnar_262{border-bottom:1px solid var(--border);padding:20px 40px}._badgeGrid_slnar_267{flex-wrap:wrap;gap:12px;margin:12px 0 0;padding:0;list-style:none;display:flex}._badgeItem_slnar_276{border:1px solid color-mix(in srgb, var(--badge-accent) 35%, var(--border));background:var(--badge-icon-bg);width:56px;height:56px;box-shadow:0 4px 16px color-mix(in srgb, var(--badge-accent) 20%, transparent);border-radius:14px;justify-content:center;align-items:center;transition:transform .2s,box-shadow .2s;display:flex}._badgeItem_slnar_276:hover{box-shadow:0 6px 20px color-mix(in srgb, var(--badge-accent) 30%, transparent);transform:translateY(-2px)}._badgesEmpty_slnar_294{color:var(--text-muted);margin:10px 0 0;font-size:.92rem;font-weight:600;line-height:1.45}._actions_slnar_302{flex-direction:column;gap:12px;padding:28px 32px 32px;display:flex}._btnPrimary_slnar_309{text-align:center;color:#111d35;font-family:var(--font-display);letter-spacing:.04em;background:#60c5f1;border-radius:12px;padding:14px;font-size:1rem;font-weight:800;transition:background .2s,transform .2s;display:block;box-shadow:0 4px 20px #60c5f14d}._btnPrimary_slnar_309:hover{background:#85d4f7;transform:translateY(-1px)}._btnGhost_slnar_329{text-align:center;border:1px solid var(--border-bright);color:var(--text-secondary);font-family:var(--font-display);cursor:pointer;background:0 0;border-radius:12px;padding:12px;font-size:.95rem;font-weight:700;transition:border-color .2s,color .2s;display:block}._btnGhost_slnar_329:hover{color:#60c5f1;border-color:#60c5f1}@media (width<=480px){._cardHeader_slnar_33,._badgesSection_slnar_262,._actions_slnar_302,._profileHero_slnar_60,._dashboard_slnar_139{padding-left:24px;padding-right:24px}._profileHero_slnar_60{text-align:left;flex-direction:column;align-items:flex-start}}._main_1iz5b_1{background:var(--bg-primary);min-height:100vh;padding:100px 10vw 80px;position:relative}._main_1iz5b_1:before{content:"";z-index:0;pointer-events:none;background-image:radial-gradient(#60c5f10d 1px,#0000 1px);background-size:32px 32px;position:fixed;inset:0}._header_1iz5b_18{z-index:1;margin-bottom:28px;position:relative}._eyebrow_1iz5b_24{font-family:var(--font-mono);letter-spacing:.18em;text-transform:uppercase;color:#60c5f1;margin-bottom:12px;font-size:.7rem;font-weight:700;display:block}._title_1iz5b_35{font-family:var(--font-display);color:var(--text-primary);margin-bottom:10px;font-size:clamp(2rem,4vw,3.2rem);font-weight:900}._sub_1iz5b_43{color:var(--text-secondary);max-width:42rem;font-size:1rem;font-weight:600;line-height:1.55}._status_1iz5b_51{z-index:1;font-family:var(--font-mono);color:var(--text-muted);padding-top:40px;font-size:.9rem;position:relative}._grid_1iz5b_60{z-index:1;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;display:grid;position:relative}._card_1iz5b_68{--card-accent:#60c5f1;--card-icon-bg:#60c5f12e;text-align:left;background:var(--bg-card);border:1px solid var(--border);cursor:pointer;color:inherit;border-radius:16px;flex-direction:column;gap:10px;padding:20px 18px 18px;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex;box-shadow:0 8px 28px #0000002e}._card_1iz5b_68:hover{border-color:color-mix(in srgb, var(--card-accent) 55%, transparent);transform:translateY(-3px)scale(1.01);box-shadow:0 14px 36px #00000047}._card_1iz5b_68:focus-visible{outline:2px solid var(--card-accent);outline-offset:3px}._cardTop_1iz5b_96{align-items:flex-start;display:flex}._iconTile_1iz5b_101{background:var(--card-icon-bg);border:1px solid color-mix(in srgb, var(--card-accent) 35%, transparent);border-radius:12px;justify-content:center;align-items:center;width:44px;height:44px;display:inline-flex}._chapterTitle_1iz5b_112{font-family:var(--font-display);color:var(--text-primary);margin-top:4px;font-size:1.05rem;font-weight:800;line-height:1.35}._lessonCount_1iz5b_121{color:var(--text-muted);margin-top:-2px;font-size:.85rem;font-weight:600}._cardBottom_1iz5b_128{align-items:center;gap:12px;margin-top:auto;padding-top:10px;display:flex}._frac_1iz5b_136{font-family:var(--font-mono);align-items:baseline;gap:3px;font-size:.9rem;font-weight:700;display:flex}._done_1iz5b_145{color:var(--card-accent)}._sep_1iz5b_149{color:var(--text-muted)}._total_1iz5b_153{color:var(--text-secondary)}@media (width<=768px){._main_1iz5b_1{padding:100px 16px 60px}._grid_1iz5b_60{grid-template-columns:1fr}}._main_1qri4_1{background:var(--bg-primary);min-height:100vh;padding:100px 10vw 80px;position:relative}._main_1qri4_1:before{content:"";z-index:0;pointer-events:none;background-image:radial-gradient(#60c5f10d 1px,#0000 1px);background-size:32px 32px;position:fixed;inset:0}._header_1qri4_18{z-index:1;margin-bottom:36px;position:relative}._backLink_1qri4_24{font-family:var(--font-mono);color:var(--text-muted);margin-bottom:20px;font-size:.78rem;font-weight:700;transition:color .2s;display:inline-block}._backLink_1qri4_24:hover{color:var(--accent-electric)}._headerRow_1qri4_38{align-items:flex-start;gap:16px;display:flex}._iconTile_1qri4_44{border:1px solid;border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;display:inline-flex}._diffBadge_1qri4_55{font-family:var(--font-mono);letter-spacing:.06em;text-transform:lowercase;border:1px solid;border-radius:999px;margin-bottom:8px;padding:4px 9px;font-size:.62rem;font-weight:700;display:inline-block}._title_1qri4_68{font-family:var(--font-display);color:var(--text-primary);max-width:900px;margin-bottom:8px;font-size:clamp(1.5rem,3.2vw,2.35rem);font-weight:900;line-height:1.25}._sub_1qri4_78{color:var(--text-secondary);font-size:.95rem;font-weight:600;font-family:var(--font-mono)}._status_1qri4_85,._empty_1qri4_86,._hint_1qri4_87{z-index:1;font-family:var(--font-mono);color:var(--text-muted);font-size:.9rem;position:relative}._hint_1qri4_87{max-width:520px;color:var(--text-secondary);margin:12px 0 20px;line-height:1.5}._list_1qri4_102{--path-accent:#60c5f1;z-index:1;flex-direction:column;gap:10px;width:100%;max-width:none;margin:0;padding:0;list-style:none;display:flex;position:relative}._row_1qri4_116{text-align:left;width:100%;color:inherit;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;grid-template-columns:auto 1fr auto;align-items:center;gap:12px 18px;padding:18px 22px;transition:transform .18s,border-color .18s,background .18s;display:grid}._row_1qri4_116:hover{border-color:color-mix(in srgb, var(--path-accent) 50%, transparent);background:var(--bg-secondary);transform:translateY(-1px)}._row_1qri4_116:focus-visible{outline:2px solid var(--path-accent);outline-offset:2px}._rowSolved_1qri4_142{background:#43d9a20f;border-color:#43d9a259}._rowCurrent_1qri4_147{border-color:color-mix(in srgb, var(--path-accent) 55%, transparent);box-shadow:0 8px 24px #0003}._code_1qri4_152{font-family:var(--font-mono);letter-spacing:.06em;color:var(--text-muted);white-space:nowrap;font-size:.78rem;font-weight:700}._rowSolved_1qri4_142 ._code_1qri4_152{color:#43d9a2e6}._problemTitle_1qri4_165{font-family:var(--font-display);font-size:1rem;font-weight:400;line-height:1.35}._solvedTag_1qri4_172{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;color:#43d9a2;border:1px solid #43d9a266;border-radius:999px;padding:3px 8px;font-size:.62rem;font-weight:700}._go_1qri4_185{color:var(--text-muted);font-family:var(--font-mono)}@media (width<=768px){._main_1qri4_1{padding:100px 16px 60px}._row_1qri4_116{grid-template-rows:auto auto;grid-template-columns:1fr auto;gap:6px 12px;padding:16px}._code_1qri4_152{grid-area:1/1}._problemTitle_1qri4_165{grid-area:2/1;font-size:.92rem}._solvedTag_1qri4_172,._go_1qri4_185{grid-area:1/2/3;align-self:center}}._wrapper_1usum_1{flex-direction:column;align-items:center;gap:16px;width:100%;max-width:100%;display:flex}._simulatorWithLabels_1usum_10{width:fit-content;max-width:100%;padding-top:1.4rem;overflow:visible}._wrapperSimulator_1usum_17{--board-aspect-w:1082;--board-aspect-h:757;flex-direction:column;align-items:flex-end;width:fit-content;max-width:100%;display:flex;overflow:visible}._simColLabels_1usum_29{z-index:4;pointer-events:none;height:1.25rem;position:absolute;top:0;left:0;right:0;transform:translateY(calc(-100% - 4px))}._simColLabel_1usum_29{font-family:var(--font-mono);color:#5a8ab8;letter-spacing:.04em;-webkit-user-select:none;user-select:none;pointer-events:none;text-shadow:0 0 6px #00000073;font-size:.8rem;font-weight:700;line-height:1;position:absolute;transform:translate(-50%)}._boardAndRowLabels_1usum_54{width:fit-content;max-width:100%;height:clamp(240px, min(calc(100svh - var(--board-v-offset,180px)), calc((100vw - var(--board-h-gutter,3rem) - var(--pin-label-gutter,1.75rem) - 8px) * var(--board-aspect-h) / var(--board-aspect-w))), calc(100svh - var(--board-v-offset,180px)));align-items:stretch;gap:4px;margin-inline:0;display:flex;overflow:visible}._simRowLabels_1usum_77{width:var(--pin-label-gutter,1.75rem);flex-shrink:0;align-self:stretch;min-height:0;position:relative}._simRowLabel_1usum_77{font-family:var(--font-mono);color:#5a8ab8;letter-spacing:.04em;-webkit-user-select:none;user-select:none;pointer-events:none;text-shadow:0 0 6px #00000073;font-size:.8rem;font-weight:700;line-height:1;position:absolute;right:0;transform:translateY(-50%)}._boardStage_1usum_100{width:auto;height:100%;max-width:calc(100% - var(--pin-label-gutter,1.75rem) - 8px);aspect-ratio:1082/757;flex:none;min-width:0;position:relative;overflow:visible}._boardImage_1usum_111{object-fit:contain;pointer-events:none;-webkit-user-select:none;user-select:none;border-radius:16px;width:100%;height:100%;display:block}._dotLayer_1usum_121{z-index:2;position:absolute;inset:0;overflow:visible}._hitPin_1usum_128{pointer-events:auto;cursor:crosshair;background:0 0;border-radius:50%;width:28px;height:28px;position:absolute;transform:translate(-50%,-50%)}._componentsLayer_1usum_139{z-index:3;pointer-events:none;position:absolute;inset:0;overflow:visible}._boardArea_1usum_147{align-items:stretch;gap:12px;width:100%;display:flex}._rowLabels_1usum_154{flex-direction:column;flex-shrink:0;min-width:1.75rem;padding-top:36px;display:flex}._rowLabel_1usum_154{font-family:var(--font-mono);color:var(--text-muted);flex:1.1;justify-content:center;align-items:center;font-size:.9rem;font-weight:700;display:flex}._rowLabelSpacer_1usum_173{flex:1}._gridWrap_1usum_177{flex-direction:column;flex:1;gap:8px;min-width:0;display:flex}._colLabels_1usum_185,._pinRow_1usum_186,._circleRow_1usum_187{grid-template-columns:repeat(19,minmax(0,1fr));display:grid}._colLabels_1usum_185{padding:0 16px}._colLabel_1usum_185{font-family:var(--font-mono);color:var(--text-muted);justify-self:center;font-size:.9rem;font-weight:700}._grid_1usum_177{--snap-circle-size:52px;background:#b8d4ec;border:2px solid #9ec0e0;border-radius:16px;flex-direction:column;width:100%;min-height:480px;padding:16px;display:flex;position:relative;overflow:visible;box-shadow:inset 0 1px 4px #fff6,0 8px 24px #0003}._pinRow_1usum_186{flex:1.1;align-items:center;min-height:0;overflow:visible}._circleRow_1usum_187{flex:1;align-items:center;min-height:0;overflow:visible}._pin_1usum_186{z-index:2;background:#4a7db0;border-radius:50%;place-self:center;width:6px;height:6px;box-shadow:0 0 0 1px #2d5a8259}._snapCircle_1usum_247{width:var(--snap-circle-size);height:var(--snap-circle-size);z-index:1;background:#ffffffb3;border-radius:50%;flex-shrink:0;place-self:center;transform:translateY(-11px)}._label_1usum_259{font-family:var(--font-mono);color:var(--text-secondary);letter-spacing:.06em;font-size:1rem;font-weight:700}@media (width<=768px){._grid_1usum_177{--snap-circle-size:40px;min-height:280px;padding:10px}._pin_1usum_186{width:4px;height:4px}._rowLabel_1usum_154,._colLabel_1usum_185,._simRowLabel_1usum_77,._simColLabel_1usum_29{font-size:.7rem}._simColLabels_1usum_29{height:1.1rem}._simulatorWithLabels_1usum_10{--pin-label-gutter:1.35rem}}._workbench_wu2ub_1{--palette-rail-w:280px;--board-v-offset:300px;--board-h-gutter:3rem;--board-overhang:32px;flex-direction:column;gap:14px;width:100%;max-width:100%;display:flex;overflow:visible}@media (width<=768px){._workbench_wu2ub_1{--board-v-offset:340px;--board-h-gutter:1.5rem}}@media (width>=1100px){._workbench_wu2ub_1{--board-v-offset:250px;--board-h-gutter:calc(11vw + 16rem);--pin-label-gutter:1.2rem;grid-template-columns:minmax(320px,1fr) minmax(0,auto);align-items:start;gap:0 16px;width:100%;display:grid}._palette_wu2ub_38{--palette-card-w:100%;--palette-item-h:110px;box-sizing:border-box;flex-direction:column;grid-column:1;width:100%;min-width:0;max-width:none;padding-top:0;display:flex;position:sticky;top:80px;overflow:visible}._paletteHeader_wu2ub_55{box-sizing:border-box;flex-direction:column;justify-content:flex-start;align-items:flex-start;gap:6px;height:auto;min-height:0;margin:0 0 10px;padding:0}._paletteTitle_wu2ub_67{align-items:center;height:1.4rem;margin:0;line-height:1;display:flex;transform:none}._paletteHint_wu2ub_76{display:block}._clearBtn_wu2ub_80{margin:0}._paletteItems_wu2ub_84{grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch;gap:10px;margin-top:0;display:grid}._paletteCard_wu2ub_92{width:100%;min-width:0}._connectorCard_wu2ub_97,._ledCard_wu2ub_98{grid-column:1/-1;width:100%}._paletteItem_wu2ub_84{height:auto;min-height:100px}._stage_wu2ub_108{flex-direction:column;grid-column:2;justify-self:end;align-items:stretch;gap:16px;width:max-content;min-width:0;max-width:min(100%,78vw);display:flex;overflow:visible}._boardHost_wu2ub_121{width:max-content;max-width:100%;padding:var(--board-overhang);box-sizing:content-box;justify-content:flex-end;margin-left:auto;overflow:visible}._boardBar_wu2ub_132{align-items:flex-end;width:100%;max-width:none}._actionBtns_wu2ub_138{justify-content:flex-end}._message_wu2ub_142{text-align:right}}@media (width>=1400px){._workbench_wu2ub_1{column-gap:16px}._paletteItems_wu2ub_84{grid-template-columns:repeat(3,minmax(0,1fr))}._connectorCard_wu2ub_97,._ledCard_wu2ub_98{grid-column:span 2}}._palette_wu2ub_38{--palette-card-w:96px;--palette-item-h:104px;background:0 0;border:none;padding:0;overflow:hidden visible}._paletteHeader_wu2ub_55{flex-direction:column;align-items:stretch;gap:6px;margin-bottom:12px;display:flex}._paletteTitle_wu2ub_67{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:#60c5f1;margin:0;font-size:.72rem;font-weight:700}._paletteHint_wu2ub_76{color:var(--text-muted);margin:0;padding-left:6px;font-size:.68rem;line-height:1.45}._clearBtn_wu2ub_80{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;cursor:pointer;white-space:nowrap;border:1px solid var(--border-bright,#3a5278);color:var(--text-secondary,#9db0cc);background:0 0;border-radius:6px;align-self:flex-start;padding:5px 10px;font-size:.62rem;font-weight:700;transition:color .15s,border-color .15s,background .15s}._clearBtn_wu2ub_80:hover:not(:disabled){color:#f0a0a0;background:#e07a7a1a;border-color:#e07a7a73}._clearBtn_wu2ub_80:disabled{opacity:.35;cursor:not-allowed}._paletteItems_wu2ub_84{flex-wrap:wrap;align-items:stretch;gap:8px;display:flex;overflow-x:hidden}._boardBar_wu2ub_132{flex-direction:column;align-items:center;gap:10px;width:100%;max-width:42rem;display:flex}._actionBtns_wu2ub_138{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}._simulateBtn_wu2ub_251,._submitBtn_wu2ub_252{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;cursor:pointer;white-space:nowrap;border-radius:10px;padding:12px 28px;font-size:.8rem;font-weight:800;transition:background .15s,border-color .15s,box-shadow .15s,transform .12s}._simulateBtn_wu2ub_251{color:#0e1a2e;background:#60c5f1;border:1px solid #60c5f1;box-shadow:0 4px 18px #60c5f159}._simulateBtn_wu2ub_251:hover:not(:disabled){background:#85d4f7;border-color:#85d4f7;transform:translateY(-1px);box-shadow:0 6px 22px #60c5f173}._simulateBtn_wu2ub_251:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}._submitBtn_wu2ub_252{color:#9ee0b5;background:#6fcf9738;border:1px solid #6fcf97;box-shadow:0 4px 16px #6fcf972e}._submitBtn_wu2ub_252:hover:not(:disabled){color:#b8f0cb;background:#6fcf9761;border-color:#8fdbb0;transform:translateY(-1px);box-shadow:0 6px 20px #6fcf9747}._submitBtn_wu2ub_252:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}._stage_wu2ub_108{flex-direction:column;align-items:center;gap:14px;width:100%;min-width:0;display:flex}._paletteCard_wu2ub_92{width:var(--palette-card-w);box-sizing:border-box;flex-direction:column;gap:4px;display:flex}._connectorCard_wu2ub_97,._ledCard_wu2ub_98{width:calc(var(--palette-card-w) * 2)}._ledOptionsRow_wu2ub_331{flex-wrap:nowrap;justify-content:center}._paletteItem_wu2ub_84{min-height:var(--palette-item-h);height:var(--palette-item-h);box-sizing:border-box;cursor:grab;width:100%;color:var(--text-primary);touch-action:none;-webkit-user-select:none;user-select:none;background:#111d358c;border:1px solid #60c5f124;border-radius:10px;flex-direction:column;flex:1;justify-content:space-between;align-items:center;gap:5px;padding:8px 8px 6px;transition:border-color .15s,background .15s,opacity .15s;display:flex}._paletteItem_wu2ub_84:hover{background:#60c5f114;border-color:#60c5f18c}._paletteItemDisabled_wu2ub_363{opacity:.4;cursor:not-allowed}._palettePreview_wu2ub_368{flex-shrink:0;justify-content:center;align-items:center;width:72px;height:42px;display:flex;overflow:hidden}._palettePreviewWide_wu2ub_378{width:100%;max-width:140px;height:36px}._paletteItemStandard_wu2ub_385 ._paletteLabel_wu2ub_385{flex-shrink:0}._paletteItemStandard_wu2ub_385 ._palettePreview_wu2ub_368{flex:1;width:100%;height:auto;min-height:52px;max-height:76px}._paletteItemStandard_wu2ub_385 ._palettePreviewWide_wu2ub_378{width:100%;max-width:none;height:auto;min-height:52px}._paletteItemStandard_wu2ub_385 ._paletteCount_wu2ub_404{flex-shrink:0}._paletteImg_wu2ub_408{object-fit:contain;pointer-events:none;transform-origin:50%;max-width:68px;max-height:36px}._paletteImgWide_wu2ub_416{max-width:120px;max-height:28px}._paletteImgRotated_wu2ub_421{max-width:26px;max-height:26px}._paletteItemStandard_wu2ub_385 ._paletteImg_wu2ub_408{max-width:72px;max-height:40px}._paletteItemStandard_wu2ub_385 ._paletteImgWide_wu2ub_416{max-width:68px;max-height:30px}._paletteItemStandard_wu2ub_385 ._paletteImgWide_wu2ub_416._paletteImgRotated_wu2ub_421{max-width:44px;max-height:60px}._paletteItemStandard_wu2ub_385 ._paletteImg_wu2ub_408._paletteImgRotated_wu2ub_421:not(._paletteImgWide_wu2ub_416){max-width:44px;max-height:44px}._paletteFallback_wu2ub_446{font-family:var(--font-mono);color:var(--text-muted);font-size:.9rem;font-weight:700}._paletteLabel_wu2ub_385{text-align:center;width:100%;font-size:.72rem;font-weight:600;line-height:1.2}._paletteCount_wu2ub_404{font-family:var(--font-mono);color:var(--text-muted);font-size:.65rem}._rotateBtn_wu2ub_467{width:100%;font-family:var(--font-mono);color:#60c5f1;background:var(--bg-primary);border:1px solid var(--border);cursor:pointer;border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;gap:3px;padding:4px 6px;font-size:.65rem;font-weight:700;display:flex}._rotateBtn_wu2ub_467:hover{background:#60c5f11a;border-color:#60c5f1}._rotateDeg_wu2ub_490{color:var(--text-muted);font-size:.62rem}._connectorLengthPicker_wu2ub_495{flex-direction:column;flex-shrink:0;align-items:center;gap:4px;width:100%;display:flex}._connectorLengthLabel_wu2ub_504{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:.6rem;font-weight:600}._connectorLengthOptions_wu2ub_512{flex-wrap:wrap;justify-content:center;gap:4px;max-width:100%;display:flex}._lengthOption_wu2ub_520{min-width:1.4rem;font-family:var(--font-mono);color:var(--text-muted);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:4px;padding:2px 6px;font-size:.65rem;font-weight:700}._lengthOption_wu2ub_520:hover{color:#60c5f1;border-color:#60c5f1}._lengthOptionActive_wu2ub_538{color:#60c5f1;background:#60c5f126;border-color:#60c5f1}._ledOptionRedActive_wu2ub_544{color:#ff6b6b;background:#ff6b6b26;border-color:#e04040}._ledOptionGreenActive_wu2ub_550{color:#6bcf7f;background:#6bcf7f26;border-color:#3cb371}._ledOptionBlueActive_wu2ub_556{color:#6bb5ff;background:#6bb5ff26;border-color:#4080e0}._boardHost_wu2ub_121{width:100%;max-width:100%;padding:var(--board-overhang,28px);box-sizing:content-box;touch-action:none;justify-content:center;align-items:flex-start;display:flex;overflow:visible}._boardHostDragging_wu2ub_575 ._placedPart_wu2ub_575,._boardHostDragging_wu2ub_575 ._placedPartDragging_wu2ub_579{pointer-events:none}._dropPreview_wu2ub_583,._placedPart_wu2ub_575{box-sizing:border-box;pointer-events:auto;position:absolute}._paletteItemAccessory_wu2ub_590{cursor:grab;touch-action:none}._paletteItemAccessory_wu2ub_590:active{cursor:grabbing}._dropPreviewTorch_wu2ub_599{outline-color:#ffdc50d9}._dropPreviewCover_wu2ub_603{outline-color:#282828bf}._accessoryPreview_wu2ub_607{pointer-events:none;opacity:.92;overflow:visible}._dropPreview_wu2ub_583{opacity:.55;outline-offset:2px;pointer-events:none;outline:2px dashed #60c5f1;overflow:visible}._placedPart_wu2ub_575{cursor:grab;touch-action:none;overflow:visible}._placedPartAccessory_wu2ub_627{cursor:grab}._placedPartAccessoryDragging_wu2ub_631{cursor:grabbing;filter:brightness(1.08)}._boardHostDragging_wu2ub_575 ._placedPartAccessory_wu2ub_627{pointer-events:auto}._placedPartInteractive_wu2ub_641{cursor:pointer;touch-action:none;-webkit-user-select:none;user-select:none}._placedPartPressed_wu2ub_647{outline-offset:2px;outline:2px solid #6fcf97}._placedPartDragging_wu2ub_579{visibility:hidden;pointer-events:none}._partInner_wu2ub_657{justify-content:center;align-items:center;width:100%;height:100%;display:flex}._rotateHandle_wu2ub_666{z-index:40;color:#08131f;cursor:pointer;opacity:0;pointer-events:none;touch-action:none;background:#60c5f1;border:1px solid #2f6f92;border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;padding:0;font-size:12px;line-height:1;transition:opacity .12s;display:flex;position:absolute;box-shadow:0 1px 4px #0006}._placedPart_wu2ub_575:hover ._rotateHandle_wu2ub_666{opacity:1;pointer-events:auto}._rotateHandle_wu2ub_666:hover{background:#7ed2f7}._boardHostDragging_wu2ub_575 ._rotateHandle_wu2ub_666{opacity:0;pointer-events:none}._partInnerLedFade_wu2ub_703,._partInnerOverlay_wu2ub_704{position:relative}._ledGlowOverlay_wu2ub_708{object-fit:fill;pointer-events:none;-webkit-user-select:none;user-select:none;width:100%;height:100%;display:block;position:absolute;inset:0}._motorFanOverlay_wu2ub_719{aspect-ratio:1;pointer-events:none;-webkit-user-select:none;user-select:none;z-index:2;will-change:transform;width:42%;height:auto;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}._motorDirBadge_wu2ub_733{z-index:3;pointer-events:none;-webkit-user-select:none;user-select:none;border-radius:50%;justify-content:center;align-items:center;width:1.15rem;height:1.15rem;font-size:.95rem;font-weight:700;line-height:1;display:flex;position:absolute;top:2%;right:2%;box-shadow:0 0 0 1px #00000040}._motorDirCw_wu2ub_752{color:#143d14;background:#f0a020}._motorDirCcw_wu2ub_757{color:#fff;background:#2a6fd4}._potSliderWrap_wu2ub_763{z-index:4;pointer-events:auto;touch-action:none;justify-content:center;align-items:center;display:flex;position:absolute;inset:auto 30% 14%}._potSliderLabel_wu2ub_777{cursor:default;width:100%;box-shadow:none;background:0 0;border:none;border-radius:0;flex-direction:column;justify-content:center;align-items:stretch;gap:.06rem;margin:0;padding:0;display:flex}._potSliderValue_wu2ub_793{letter-spacing:.01em;color:#1a1a1a;-webkit-user-select:none;user-select:none;white-space:nowrap;text-overflow:ellipsis;background:#ffffffe6;border:1px solid #0003;border-radius:2px;align-self:center;max-width:100%;padding:.06rem .25rem;font-size:.58rem;font-weight:700;line-height:1.1;overflow:hidden}._potSlider_wu2ub_763{appearance:none;cursor:pointer;background:#1a3a6e;border:none;border-radius:999px;outline:none;width:100%;height:.38rem;margin:0;padding:0}._potSlider_wu2ub_763::-webkit-slider-thumb{appearance:none;width:.7rem;height:.7rem;box-shadow:none;cursor:pointer;background:#f0f0f0;border:1px solid #00000073;border-radius:50%}._potSlider_wu2ub_763::-moz-range-thumb{width:.7rem;height:.7rem;box-shadow:none;cursor:pointer;background:#f0f0f0;border:1px solid #00000073;border-radius:50%}._potSlider_wu2ub_763::-moz-range-track{background:#1a3a6e;border:none;border-radius:999px;height:.38rem}._partImgAligned_wu2ub_854{object-fit:fill;pointer-events:none;-webkit-user-select:none;user-select:none;width:100%;height:100%;display:block}._partFallback_wu2ub_863{text-align:center;border:1px solid var(--border);background:#60c5f126;justify-content:center;align-items:center;width:100%;height:100%;padding:4px;font-size:.65rem;font-weight:700;display:flex}._message_wu2ub_142{font-family:var(--font-mono);color:#f0a050;text-align:center;white-space:pre-line;max-width:36rem;margin:0;font-size:.8rem;line-height:1.45}._messagePass_wu2ub_888{color:#6fcf97}._messageFail_wu2ub_892{color:#e07070}._wireToolBtn_wu2ub_897{cursor:pointer;font:inherit}._wireToolArmed_wu2ub_902{outline:2px solid var(--accent,#60c5f1);outline-offset:2px}._wireToolHint_wu2ub_907{color:var(--text-muted);text-align:center;font-size:.6rem;line-height:1.2}._wirePalettePin_wu2ub_914{object-fit:contain;pointer-events:none;width:48px;height:48px}._boardHostWireTool_wu2ub_921{cursor:crosshair}._wireLayer_wu2ub_925{z-index:100;pointer-events:none;position:absolute;inset:0}._wireSvg_wu2ub_933{pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:visible}._wireHitStroke_wu2ub_942{pointer-events:stroke;cursor:pointer}._wirePlaced_wu2ub_947{pointer-events:none;position:absolute;inset:0}._wirePin_wu2ub_953{aspect-ratio:1;object-fit:contain;pointer-events:none;-webkit-user-select:none;user-select:none;z-index:101;filter:drop-shadow(0 1px 1px #00000059);width:7.2%;height:auto;position:absolute}._quiz_3t4in_1{flex-direction:column;gap:20px;width:100%;padding:4px 0 8px;display:flex}._header_3t4in_9{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:10px;display:flex}._title_3t4in_17{font-family:var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:#60c5f1;margin:0;font-size:.68rem;font-weight:700}._score_3t4in_27{font-family:var(--font-mono);color:var(--accent-green,#3ecf8e);margin:0;font-size:.82rem;font-weight:700}._question_3t4in_35{border-top:1px solid #60c5f124;flex-direction:column;gap:10px;padding-top:14px;display:flex}._prompt_3t4in_43{color:var(--text-primary);margin:0;font-size:1.02rem;font-weight:700;line-height:1.45}._options_3t4in_51{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}._option_3t4in_51{cursor:pointer;text-align:left;font:inherit;color:var(--text-secondary);background:0 0;border:1px solid #60c5f133;border-radius:8px;align-items:flex-start;gap:10px;margin:0;padding:10px 12px;transition:border-color .15s,background .15s,color .15s;display:flex}._option_3t4in_51:hover:not(:disabled){background:#60c5f10f;border-color:#60c5f173}._option_3t4in_51:disabled{cursor:default}._optionSelected_3t4in_88{color:var(--text-primary);background:#60c5f11a;border-color:#60c5f1b3}._optionCorrect_3t4in_94{color:var(--accent-green,#3ecf8e);background:#3ecf8e1f;border-color:#3ecf8ebf}._optionWrong_3t4in_100{color:#e85d75;background:#e85d751a;border-color:#e85d758c}._key_3t4in_106{font-family:var(--font-mono);flex-shrink:0;min-width:1.4em;font-size:.78rem;font-weight:700}._label_3t4in_114{flex:1;font-size:.95rem;font-weight:400;line-height:1.45}._explanation_3t4in_121{border-left:3px solid var(--accent-green,#3ecf8e);color:var(--text-secondary);background:#3ecf8e0f;margin:2px 0 0;padding:10px 12px;font-size:.92rem;font-weight:400;line-height:1.55}._actions_3t4in_132{flex-wrap:wrap;align-items:center;gap:12px;padding-top:4px;display:flex}._submitBtn_3t4in_140,._retryBtn_3t4in_141{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;cursor:pointer;border:1px solid #0000;border-radius:8px;padding:10px 18px;font-size:.78rem;font-weight:700;transition:background .15s,border-color .15s,opacity .15s}._submitBtn_3t4in_140{color:#0b1220;background:#60c5f1}._submitBtn_3t4in_140:hover:not(:disabled){filter:brightness(1.08)}._submitBtn_3t4in_140:disabled{opacity:.45;cursor:not-allowed}._retryBtn_3t4in_141{color:var(--text-secondary);background:0 0;border-color:#60c5f159}._retryBtn_3t4in_141:hover{color:var(--text-primary);border-color:#60c5f1a6}._hint_3t4in_182{font-family:var(--font-mono);color:var(--text-muted);margin:0;font-size:.75rem}._main_1tnhh_1{background:var(--bg-primary);min-height:100vh;padding:100px 10vw 80px;position:relative}._main_1tnhh_1:before{content:"";z-index:0;pointer-events:none;background-image:radial-gradient(#60c5f10d 1px,#0000 1px);background-size:32px 32px;position:fixed;inset:0}._layout_1tnhh_18{z-index:1;flex-direction:column;gap:48px;width:100%;max-width:100%;display:flex;position:relative}._contentColumn_1tnhh_28{flex-direction:column;min-width:0;display:flex}._boardColumn_1tnhh_34{justify-content:center;width:100%;margin-top:8px;display:flex}._mainWithWorkbench_1tnhh_42{padding:80px clamp(24px,5vw,64px) 40px}._mainWithWorkbench_1tnhh_42 ._layout_1tnhh_18{gap:0}._mainWithWorkbench_1tnhh_42 ._header_1tnhh_50{margin-bottom:18px}._mainWithWorkbench_1tnhh_42 ._boardColumn_1tnhh_34{justify-content:stretch;width:100%;margin-top:40px;overflow:visible}._mainWithWorkbench_1tnhh_42 ._boardColumn_1tnhh_34>*{--board-v-offset:min(340px, calc(100svh * .36));width:100%}._mainWithWorkbench_1tnhh_42 ._contentColumn_1tnhh_28{overflow:visible}@media (width>=1100px){._mainWithWorkbench_1tnhh_42{padding:76px clamp(28px,5.5vw,72px) 40px}._mainWithWorkbench_1tnhh_42 ._boardColumn_1tnhh_34{margin-top:40px}._mainWithWorkbench_1tnhh_42 ._boardColumn_1tnhh_34>*{--board-v-offset:min(280px, calc(100svh * .28));--board-h-gutter:calc(12vw + 18rem);--pin-label-gutter:1.2rem}}@media (width<=768px){._mainWithWorkbench_1tnhh_42{padding:80px 20px 32px}._mainWithWorkbench_1tnhh_42 ._boardColumn_1tnhh_34>*{--board-v-offset:min(360px, calc(100svh * .38))}}._header_1tnhh_50{z-index:1;margin-bottom:28px;position:relative}._backLink_1tnhh_102{font-family:var(--font-mono);color:var(--text-muted);margin-bottom:16px;font-size:.78rem;font-weight:700;transition:color 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#60c5f138;border-radius:8px;width:100%;height:auto}._figureCaption_1tnhh_221{font-family:var(--font-mono);letter-spacing:.04em;color:var(--text-muted,#8aa0b8);font-size:.72rem}._afterBoard_1tnhh_229{flex-direction:column;gap:22px;width:100%;max-width:none;margin-top:36px;display:flex}._hintPanel_1tnhh_238{flex-direction:column;align-items:flex-start;gap:10px;width:100%;display:flex}._hintRevealBtn_1tnhh_246{font-family:var(--font-mono);letter-spacing:.06em;color:#f0b060;cursor:pointer;background:#f0a05014;border:1px dashed #f0a0508c;border-radius:10px;padding:12px 20px;font-size:.78rem;font-weight:700;transition:background .15s,border-color .15s,transform .12s}._hintRevealBtn_1tnhh_246:hover{background:#f0a05029;border-color:#f0b060;transform:translateY(-1px)}._hintCard_1tnhh_266{background:#f0a05012;border:1px solid #f0a05059;border-radius:12px;width:100%;padding:18px 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