:root{--bg-dark:#060814;--bg-panel:#0d1326e0;--bg-panel-solid:#0d1326;--bg-card:#16203cbf;--bg-card-hover:#1e2c52e6;--primary:#00d2ff;--primary-hover:#33dcff;--primary-glow:#00d2ff66;--accent-sun:#fa0;--accent-earth:#2b82c9;--accent-success:#2ed573;--accent-danger:#ff4757;--accent-warning:#ffa502;--text-main:#f3f6fc;--text-muted:#a6b5d6;--text-dim:#7182a6;--border-subtle:#ffffff1f;--border-bright:#00d2ff66;--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-full:9999px;--shadow-lg:0 12px 36px #0000008c;--shadow-glow:0 0 24px var(--primary-glow);--font-main:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-heading:"Trebuchet MS", var(--font-main);--touch-target-min:58px}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{background-color:var(--bg-dark);width:100%;height:100%;color:var(--text-main);font-family:var(--font-main);-webkit-user-select:none;user-select:none;font-size:18px;line-height:1.5;overflow:hidden}#app{flex-direction:column;width:100%;height:100%;display:flex;position:relative;overflow:hidden}.app-header{-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-subtle);z-index:100;background:#060a18d9;flex-shrink:0;align-items:center;height:72px;display:flex}.header-container{justify-content:space-between;align-items:center;gap:16px;width:100%;padding:0 24px;display:flex}.header-brand{cursor:pointer;border-radius:var(--radius-md);align-items:center;gap:12px;padding:8px 12px;transition:background .2s;display:flex}.header-brand:hover,.header-brand:focus-visible{background:#ffffff14}.brand-logo{font-size:32px}.brand-title{color:#fff;letter-spacing:-.3px;font-size:20px;font-weight:700}.brand-subtitle{color:var(--primary);font-size:14px;font-weight:600;display:block}.header-nav{align-items:center;gap:8px;display:flex}.nav-item-btn{height:48px;color:var(--text-muted);border-radius:var(--radius-full);cursor:pointer;background:0 0;border:1px solid #0000;align-items:center;gap:8px;padding:10px 18px;font-size:17px;font-weight:600;transition:all .2s;display:inline-flex}.nav-item-btn:hover{color:#fff;background:#ffffff0f}.nav-item-btn.active{color:#060814;background:var(--primary);border-color:var(--primary);box-shadow:0 0 16px var(--primary-glow)}.header-tools{align-items:center;gap:10px;display:flex}.tool-btn{border:1px solid var(--border-subtle);border-radius:var(--radius-full);height:48px;color:var(--text-main);cursor:pointer;background:#ffffff0f;align-items:center;gap:8px;padding:0 16px;font-size:16px;font-weight:600;transition:all .2s;display:inline-flex}.tool-btn:hover,.tool-btn:focus-visible{border-color:var(--primary);background:#ffffff1f}.main-viewport{flex:1;width:100%;height:calc(100% - 72px);position:relative;overflow:hidden}.canvas-container{z-index:1;touch-action:none;width:100%;height:100%;position:absolute;top:0;left:0}.canvas-container canvas{touch-action:none;cursor:grab;width:100%!important;height:100%!important}.canvas-container canvas:active{cursor:grabbing}.ui-overlay-container{z-index:10;pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0}.screen-home,.screen-earth,.screen-exploration,.screen-quiz-interactive{pointer-events:none}.screen-quiz-selection,.screen-home .home-hero,.screen-home .home-menu-grid,.screen-home .home-footer-info,.viewport-overlay,.earth-info-panel,.planet-profile-drawer,.quiz-form-pane,.quiz-3d-header,.quiz-3d-controls,.quiz-selection-header,.quiz-planets-grid,.planet-3d-label{pointer-events:auto}.btn{min-height:var(--touch-target-min);border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;gap:12px;padding:14px 26px;font-size:19px;font-weight:700;text-decoration:none;transition:transform .15s,background-color .2s,box-shadow .2s;display:inline-flex}.btn:active{transform:scale(.96)}.btn-primary{color:#fff;background:linear-gradient(135deg,#00d2ff,#07f);box-shadow:0 4px 18px #0096ff66}.btn-primary:hover{background:linear-gradient(135deg,#26dcff,#1a85ff);box-shadow:0 6px 24px #00b4ff99}.btn-secondary{color:#fff;border:1px solid var(--border-subtle);backdrop-filter:blur(8px);background:#ffffff1f}.btn-secondary:hover{background:#fff3;border-color:#ffffff4d}.btn-outline{color:var(--primary);border:2px solid var(--primary);background:0 0}.btn-outline:hover{background:#00d2ff1f}.btn-large{border-radius:var(--radius-lg);min-height:68px;padding:20px 42px;font-size:24px}.btn-pulse{animation:2.5s infinite pulse-glow}@keyframes pulse-glow{0%{box-shadow:0 0 #00d2ff99}70%{box-shadow:0 0 0 18px #00d2ff00}to{box-shadow:0 0 #00d2ff00}}.controls-bar{backdrop-filter:blur(10px);border-radius:var(--radius-full);border:1px solid var(--border-subtle);background:#0a1024d9;align-items:center;gap:10px;padding:10px 14px;display:flex}.ctrl-btn{border-radius:var(--radius-md);color:#fff;cursor:pointer;background:#ffffff14;border:1px solid #0000;flex-direction:column;justify-content:center;align-items:center;min-width:58px;min-height:58px;padding:6px 12px;transition:all .2s;display:flex}.ctrl-btn:hover,.ctrl-btn:focus-visible{border-color:var(--primary);background:#ffffff2e}.ctrl-btn:active{transform:scale(.92)}.ctrl-icon{font-size:20px}.ctrl-label{color:var(--text-muted);margin-top:2px;font-size:13px;font-weight:600}.screen-home{background:radial-gradient(circle at 50% 20%,#14234b73 0%,#060814f2 80%);flex-direction:column;justify-content:space-between;align-items:center;width:100%;height:100%;padding:36px 40px;display:flex;position:relative;overflow-y:auto}.home-hero{text-align:center;max-width:1100px;margin:0 auto}.hero-badge{border:1px solid var(--border-bright);border-radius:var(--radius-full);color:var(--primary);letter-spacing:.5px;background:#00d2ff1f;align-items:center;gap:8px;margin-bottom:20px;padding:8px 18px;font-size:16px;font-weight:700;display:inline-flex}.main-title{font-family:var(--font-heading);letter-spacing:-1px;color:#fff;text-shadow:0 4px 20px #000c,0 0 30px #00d2ff66;text-transform:uppercase;margin-bottom:8px;font-size:52px;font-weight:900;line-height:1.15}.sub-title{color:var(--accent-sun);text-shadow:0 2px 14px #fa06;margin-bottom:18px;font-size:32px;font-weight:700}.hero-desc{color:var(--text-muted);max-width:860px;margin:0 auto 28px;font-size:21px;line-height:1.6}.hero-action{margin-bottom:32px}.home-menu-grid{grid-template-columns:repeat(3,1fr);gap:28px;width:100%;max-width:1350px;margin:0 auto 24px;display:grid}.menu-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);cursor:pointer;-webkit-backdrop-filter:blur(12px);flex-direction:column;padding:32px 28px;transition:transform .25s,border-color .25s,box-shadow .25s;display:flex;position:relative;overflow:hidden}.menu-card:hover,.menu-card:focus-visible{border-color:var(--primary);box-shadow:0 16px 40px #0009, 0 0 24px var(--primary-glow);outline:none;transform:translateY(-8px)}.card-icon-wrap{border-radius:var(--radius-md);background:#ffffff14;justify-content:center;align-items:center;width:76px;height:76px;margin-bottom:20px;font-size:40px;display:flex}.card-title{color:#fff;margin-bottom:12px;font-size:28px;font-weight:800}.card-desc{color:var(--text-muted);flex:1;margin-bottom:20px;font-size:18px;line-height:1.55}.card-btn-link{color:var(--primary);align-items:center;gap:6px;font-size:18px;font-weight:700;display:inline-flex}.home-footer-info{color:var(--text-dim);text-align:center;padding:10px 0;font-size:15px}.screen-earth{justify-content:flex-end;width:100%;height:100%;display:flex;position:relative}.earth-info-panel{background:var(--bg-panel);-webkit-backdrop-filter:blur(18px);border-left:1px solid var(--border-subtle);z-index:20;flex-direction:column;width:520px;height:100%;padding:24px 28px;display:flex;box-shadow:-10px 0 35px #0009}.panel-header{margin-bottom:16px}.panel-tag{border-radius:var(--radius-sm);color:var(--primary);letter-spacing:.5px;background:#00d2ff26;margin-bottom:8px;padding:4px 10px;font-size:13px;font-weight:800;display:inline-block}.panel-title{color:#fff;font-size:28px;font-weight:800;line-height:1.25}.panel-subtitle{color:var(--text-muted);margin-top:4px;font-size:16px}.earth-tabs-nav{scrollbar-width:thin;gap:8px;margin-bottom:16px;padding-bottom:8px;display:flex;overflow-x:auto}.tab-btn{white-space:nowrap;border:1px solid var(--border-subtle);border-radius:var(--radius-md);min-height:44px;color:var(--text-muted);cursor:pointer;background:#ffffff14;padding:8px 14px;font-size:15px;font-weight:600;transition:all .2s}.tab-btn.active{background:var(--primary);color:#060814;border-color:var(--primary);font-weight:700}.earth-cards-container{flex:1;padding-right:6px;overflow-y:auto}.earth-material-card{border:1px solid var(--border-subtle);border-radius:var(--radius-md);background:#ffffff0d;padding:22px;display:none}.earth-material-card.active{animation:.3s fadeIn;display:block}.card-header-badge{border-radius:var(--radius-sm);color:var(--accent-sun);background:#ffaa0026;margin-bottom:10px;padding:4px 10px;font-size:14px;font-weight:700;display:inline-block}.material-title{color:#fff;margin-bottom:12px;font-size:24px;font-weight:800}.material-summary{color:var(--primary);margin-bottom:14px;font-size:18px;font-weight:600;line-height:1.45}.material-points{margin-bottom:18px;list-style:none}.material-points li{color:var(--text-main);margin-bottom:10px;font-size:17px;line-height:1.5}.material-tip{border-left:4px solid var(--primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-muted);background:#00d2ff14;gap:12px;padding:14px;font-size:16px;display:flex}.earth-panel-actions{border-top:1px solid var(--border-subtle);gap:12px;margin-top:16px;padding-top:14px;display:flex}.earth-panel-actions .btn{flex:1}.screen-exploration{width:100%;height:100%;position:relative}.planet-selector-bar{backdrop-filter:blur(12px);border-radius:var(--radius-full);border:1px solid var(--border-subtle);background:#0a1024d9;gap:8px;max-width:90%;padding:8px 14px;display:flex;overflow-x:auto}.planet-pill-btn{border-radius:var(--radius-full);min-height:48px;color:var(--text-main);cursor:pointer;white-space:nowrap;background:#ffffff0f;border:1px solid #0000;align-items:center;gap:8px;padding:8px 16px;font-size:16px;font-weight:600;transition:all .2s;display:inline-flex}.planet-pill-btn:hover{background:#ffffff26}.planet-pill-btn.active{border-color:var(--primary);color:#fff;background:#00d2ff33;font-weight:700}.pill-dot{border-radius:50%;width:14px;height:14px;display:inline-block;box-shadow:0 0 6px #fff6}.scale-disclaimer{backdrop-filter:blur(8px);border-radius:var(--radius-full);border:1px solid var(--border-subtle);color:var(--text-muted);background:#060a18d9;padding:8px 18px;font-size:15px}.planet-profile-drawer{background:var(--bg-panel);-webkit-backdrop-filter:blur(20px);border-left:1px solid var(--border-subtle);z-index:50;flex-direction:column;width:540px;height:100%;transition:transform .35s cubic-bezier(.16,1,.3,1);display:flex;position:absolute;top:0;right:0;box-shadow:-12px 0 40px #000000b3}.planet-profile-drawer.hidden{transform:translate(105%)}.planet-profile-drawer.visible{transform:translate(0)}.drawer-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:flex-start;padding:24px 28px;display:flex}.planet-order-tag{color:var(--accent-sun);margin-bottom:4px;font-size:14px;font-weight:700;display:inline-block}.drawer-planet-name{color:#fff;margin-bottom:6px;font-size:34px;font-weight:900;line-height:1.1}.planet-type-badge{border:1px solid var(--border-bright);border-radius:var(--radius-full);color:var(--primary);background:#00d2ff26;padding:4px 12px;font-size:14px;font-weight:700;display:inline-block}.drawer-close-btn{color:#fff;cursor:pointer;background:#ffffff1a;border:none;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;font-size:28px;transition:background .2s;display:flex}.drawer-close-btn:hover{background:#fff3}.drawer-body{flex-direction:column;flex:1;gap:20px;padding:24px 28px;display:flex;overflow-y:auto}.profile-section{flex-direction:column;gap:8px;display:flex}.info-callout{border-radius:var(--radius-md);border-left:4px solid var(--primary);background:#ffffff0d;padding:14px 18px;font-size:17px;line-height:1.5}.metrics-grid{grid-template-columns:1fr;gap:12px;display:grid}.metric-card{border:1px solid var(--border-subtle);border-radius:var(--radius-md);background:#ffffff0a;flex-direction:column;gap:4px;padding:16px;display:flex}.metric-icon{font-size:22px}.metric-label{color:var(--text-dim);font-size:14px;font-weight:600}.metric-value{color:#fff;font-size:22px;font-weight:800}.metric-note{color:var(--text-muted);font-size:14px;line-height:1.4}.section-title{color:#fff;align-items:center;gap:8px;margin-top:6px;font-size:20px;font-weight:800;display:flex}.section-text{color:var(--text-main);font-size:17px;line-height:1.55}.comp-detail-box{color:var(--text-muted);border-radius:var(--radius-sm);background:#0003;padding:10px 14px;font-size:15px}.fun-facts-list{flex-direction:column;gap:12px;list-style:none;display:flex}.fun-facts-list li{border-radius:var(--radius-md);background:#ffffff08;border:1px solid #ffffff0f;gap:12px;padding:12px 14px;font-size:17px;line-height:1.5;display:flex}.fact-bullet{flex-shrink:0;font-size:20px}.source-box{border-top:1px solid var(--border-subtle);color:var(--text-dim);margin-top:10px;padding-top:12px}.drawer-footer{border-top:1px solid var(--border-subtle);background:#0a0f1ecc;gap:12px;padding:20px 28px;display:flex}.drawer-footer .btn{flex:1}.screen-quiz-selection{flex-direction:column;gap:28px;width:100%;height:100%;padding:36px 48px;display:flex;overflow-y:auto}.quiz-selection-header{align-items:center;gap:24px;display:flex}.quiz-main-title{color:#fff;font-size:34px;font-weight:800}.quiz-sub-title{color:var(--text-muted);font-size:19px}.quiz-planets-grid{grid-template-columns:repeat(4,1fr);gap:24px;max-width:1400px;display:grid}.quiz-planet-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);cursor:pointer;text-align:center;backdrop-filter:blur(10px);flex-direction:column;align-items:center;padding:24px;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex}.quiz-planet-card:hover,.quiz-planet-card:focus-visible{border-color:var(--primary);box-shadow:0 12px 30px #00000080, 0 0 20px var(--primary-glow);outline:none;transform:translateY(-6px)}.card-planet-preview{justify-content:center;align-items:center;width:100px;height:100px;margin-bottom:16px;display:flex;position:relative}.planet-circle{border-radius:50%;width:76px;height:76px;position:relative;box-shadow:0 0 20px #fff3}.preview-rings{border:4px solid #dcbe8cb3;border-radius:50%;width:110px;height:30px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(-20deg)}.card-planet-order{color:var(--accent-sun);font-size:13px;font-weight:700;display:block}.card-planet-name{color:#fff;margin:2px 0 6px;font-size:26px;font-weight:800}.card-planet-type{color:var(--text-dim);margin-bottom:12px;font-size:14px;display:block}.card-planet-badge{border-radius:var(--radius-full);color:var(--primary);background:#00d2ff26;padding:4px 12px;font-size:13px;font-weight:700;display:inline-block}.screen-quiz-interactive{width:100%;height:100%;display:flex;position:relative}.quiz-3d-pane{pointer-events:none;flex-direction:column;flex:1;justify-content:space-between;padding:24px;display:flex;position:relative}.quiz-3d-pane>*{pointer-events:auto}.quiz-3d-header{align-items:center;gap:16px;display:flex}.planet-badge-group{backdrop-filter:blur(8px);border-radius:var(--radius-md);border:1px solid var(--border-subtle);background:#0a1024d9;padding:10px 20px}.badge-planet-order{color:var(--accent-sun);font-size:13px;font-weight:700}.badge-planet-title{color:#fff;font-size:26px;font-weight:800}.quiz-3d-controls{gap:8px;display:flex;position:absolute;bottom:60px;left:24px}.ctrl-btn-mini{border:1px solid var(--border-subtle);color:#fff;cursor:pointer;background:#0a1024d9;border-radius:50%;justify-content:center;align-items:center;width:52px;height:52px;font-size:18px;transition:background .2s;display:flex}.ctrl-btn-mini:hover{background:#fff3}.quiz-3d-footer-hint{border-radius:var(--radius-full);color:var(--text-muted);background:#0a1024cc;align-self:flex-start;padding:8px 16px;font-size:14px}.quiz-form-pane{background:var(--bg-panel);-webkit-backdrop-filter:blur(18px);border-left:1px solid var(--border-subtle);z-index:20;flex-direction:column;width:620px;height:100%;padding:24px 32px;display:flex;box-shadow:-10px 0 35px #0009}.quiz-form-header{margin-bottom:16px}.progress-title{color:var(--text-muted);font-size:18px;display:block}.progress-count{color:var(--primary);margin-top:4px;font-size:16px;font-weight:700;display:inline-block}.quiz-alert-banner{border:1px solid var(--accent-danger);border-radius:var(--radius-md);color:#ffb8b8;background:#ff475726;align-items:center;gap:12px;margin-bottom:16px;padding:14px 18px;font-size:16px;display:flex}.quiz-alert-banner.hidden{display:none}.quiz-score-banner{border-radius:var(--radius-md);border:1px solid #0000;margin-bottom:18px;padding:20px}.score-high{border-color:var(--accent-success);background:#2ed5732e}.score-mid{border-color:var(--accent-warning);background:#ffa5022e}.score-main{align-items:center;gap:16px;display:flex}.score-emoji{font-size:42px}.score-title{color:#fff;font-size:24px;font-weight:800}.score-desc{color:var(--text-main);margin-top:4px;font-size:18px}.quiz-questions-list{flex-direction:column;flex:1;gap:22px;padding-right:8px;display:flex;overflow-y:auto}.quiz-question-card{border:1px solid var(--border-subtle);border-radius:var(--radius-md);background:#ffffff0a;padding:22px;transition:border-color .2s}.quiz-question-card.highlight-unanswered{border-color:var(--accent-danger);box-shadow:0 0 16px #ff475780}.question-header{justify-content:space-between;margin-bottom:10px;display:flex}.question-number{color:var(--text-dim);font-size:15px;font-weight:700}.question-category-tag{color:var(--accent-sun);border-radius:var(--radius-full);background:#ffaa001f;padding:2px 10px;font-size:13px;font-weight:700}.question-text{color:#fff;margin-bottom:16px;font-size:20px;font-weight:700;line-height:1.45}.options-grid{flex-direction:column;gap:10px;display:flex}.option-btn{border-radius:var(--radius-md);min-height:58px;color:var(--text-main);text-align:left;cursor:pointer;background:#ffffff0f;border:2px solid #0000;align-items:center;gap:14px;padding:14px 18px;font-size:18px;font-weight:600;transition:all .15s;display:flex}.option-btn:hover:not(:disabled){background:#ffffff1f;border-color:#fff3}.option-btn:active:not(:disabled){transform:scale(.98)}.option-btn.option-selected{border-color:var(--primary);color:#fff;box-shadow:0 0 12px var(--primary-glow);background:#00d2ff2e}.opt-label{background:#ffffff1f;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;font-size:16px;font-weight:800;display:flex}.option-selected .opt-label{background:var(--primary);color:#060814}.opt-text{flex:1}.option-btn.option-correct{border-color:var(--accent-success);color:#fff;background:#2ed57338}.option-btn.option-correct .opt-label{background:var(--accent-success);color:#000}.option-btn.option-incorrect{border-color:var(--accent-danger);color:#ffb8b8;background:#ff475733}.option-btn.option-incorrect .opt-label{background:var(--accent-danger);color:#fff}.result-badge-correct{color:var(--accent-success);font-size:15px;font-weight:800}.result-badge-wrong{color:var(--accent-danger);font-size:15px;font-weight:800}.explanation-box{border-radius:var(--radius-md);margin-top:14px;padding:14px 18px;font-size:16px;line-height:1.5}.explanation-box.exp-correct{border-left:4px solid var(--accent-success);color:#d1fae5;background:#2ed5731f}.explanation-box.exp-wrong{border-left:4px solid var(--accent-warning);color:#fef3c7;background:#ffa5021f}.exp-header{align-items:center;gap:8px;margin-bottom:4px;font-weight:700;display:flex}.quiz-form-footer{border-top:1px solid var(--border-subtle);margin-top:20px;padding-top:16px}.quiz-form-footer .btn{width:100%}.quiz-post-actions{flex-direction:column;gap:10px;display:flex}.solar-system-labels-overlay{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0;overflow:hidden}.planet-3d-label{pointer-events:auto;backdrop-filter:blur(6px);color:#fff;border-radius:var(--radius-full);cursor:pointer;white-space:nowrap;background:#060c20d9;border:1px solid #00d2ff66;padding:4px 12px;font-size:14px;font-weight:700;transition:transform .15s,background-color .15s;position:absolute;top:0;left:0;box-shadow:0 4px 12px #00000080}.planet-3d-label:hover{background:var(--primary);color:#060814;transform:translate(-50%,-100%)scale(1.1)!important}.viewport-overlay{z-index:30;position:absolute}.viewport-overlay.top-left{top:24px;left:24px}.viewport-overlay.top-center{top:24px;left:50%;transform:translate(-50%)}.viewport-overlay.bottom-left{bottom:24px;left:24px}.viewport-overlay.bottom-center{bottom:24px;left:50%;transform:translate(-50%)}.hint-banner{backdrop-filter:blur(8px);border-radius:var(--radius-full);border:1px solid var(--border-subtle);color:var(--text-muted);background:#0a1024d9;align-items:center;gap:10px;padding:8px 18px;font-size:15px;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (width>=1921px){html,body{font-size:22px}.main-title{font-size:68px}.sub-title{font-size:40px}.hero-desc{max-width:1100px;font-size:26px}.btn{min-height:68px;padding:18px 34px;font-size:22px}.btn-large{min-height:82px;padding:24px 50px;font-size:28px}.earth-info-panel,.planet-profile-drawer{width:650px}.quiz-form-pane{width:740px}.ctrl-btn{min-width:68px;min-height:68px}.ctrl-icon{font-size:26px}.ctrl-label{font-size:15px}.option-btn{min-height:68px;font-size:21px}}@media (width<=1440px){.main-title{font-size:44px}.sub-title{font-size:28px}.hero-desc{font-size:19px}.home-menu-grid{gap:20px}.earth-info-panel{width:460px}.planet-profile-drawer{width:480px}.quiz-form-pane{width:540px}.quiz-planets-grid{grid-template-columns:repeat(4,1fr);gap:16px}}@media (width<=1200px){.main-title{font-size:38px}.sub-title{font-size:24px}.home-menu-grid{grid-template-columns:1fr;max-width:680px}.menu-card{padding:24px}.card-icon-wrap{width:60px;height:60px;font-size:32px}.quiz-planets-grid{grid-template-columns:repeat(2,1fr)}.screen-quiz-interactive{flex-direction:column;overflow-y:auto}.quiz-3d-pane{flex:none;height:380px}.quiz-form-pane{width:100%;height:auto;box-shadow:none;border-left:none;border-top:1px solid var(--border-subtle)}.screen-earth{flex-direction:column;overflow-y:auto}.earth-info-panel{width:100%;height:auto;box-shadow:none;border-left:none;border-top:1px solid var(--border-subtle)}.planet-profile-drawer{width:100%}}@media (pointer:coarse){.menu-card:hover{transform:none}.btn:active,.ctrl-btn:active,.option-btn:active{transform:scale(.95)}.planet-3d-label{padding:8px 16px;font-size:16px}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.btn-pulse{animation:none}}