:root{--text:#625a72;--text-h:#322848;--bg:#fffaf5;--border:#eadff2;--code-bg:#fff;--accent:#8b5cf6;--accent-bg:#f1eafe;--accent-border:#a78bfa;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (width<=1024px){:root{font-size:16px}}#root{text-align:center;box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}body{background:radial-gradient(circle at 10% 10%,#fbbf2433,#0000 24rem),radial-gradient(circle at 90% 18%,#f472b62e,#0000 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h1{overflow-wrap:anywhere;color:#0000;background:linear-gradient(90deg,#7c3aed,#ec4899,#f59e0b);-webkit-background-clip:text;background-clip:text;margin:0 0 8px;font-size:clamp(32px,7vw,56px);font-weight:900;line-height:1.2}.app-header p{color:var(--text)}.app-error{color:#e5484d}.app-note{box-sizing:border-box;width:100%;max-width:720px;color:var(--text);text-align:left;background:#fffbebe6;border:1px solid #fde68a;border-radius:14px;align-items:flex-start;gap:8px;padding:12px 16px;font-size:14px;line-height:1.6;display:flex}.image-uploader{width:100%;max-width:720px}.image-uploader__label{color:var(--text-h);margin-bottom:10px;font-weight:800}.preset-list{grid-template-columns:repeat(5,1fr);gap:10px;display:grid}.image-uploader .preset-button{color:var(--text-h);cursor:pointer;background:#fff;border:2px solid #ead7ff;border-radius:14px;padding:0;overflow:hidden;box-shadow:0 6px 16px #4c1d951a}.preset-button img{aspect-ratio:4/3;object-fit:cover;width:100%;display:block}.preset-button span{padding:7px 4px;font-weight:800;display:block}.image-uploader .preset-button:hover:not(:disabled),.image-uploader .preset-button--selected{border-color:#8b5cf6;transform:translateY(-2px)}.image-uploader__divider{color:var(--text);align-items:center;gap:12px;margin:16px 0;font-size:14px;display:flex}.image-uploader__divider:before,.image-uploader__divider:after{content:"";background:var(--border);flex:1;height:1px}.image-uploader .upload-button{font:inherit;color:#fff;cursor:pointer;background:linear-gradient(135deg,#8b5cf6,#ec4899);border:2px solid #7c3aed;border-radius:999px;padding:12px 24px;font-weight:800;transition:border-color .2s,opacity .2s;box-shadow:0 7px #6d28d9,0 12px 24px #7c3aed33}.image-uploader .upload-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 9px #6d28d9,0 15px 28px #7c3aed3d}.image-uploader button:disabled{opacity:.5;cursor:not-allowed}.app-stage{flex-direction:column;align-items:center;gap:20px;width:100%;max-width:720px;display:flex}.canvas-stage{aspect-ratio:8/5;cursor:crosshair;touch-action:manipulation;border:5px solid #fff;border-radius:24px;width:100%;max-width:100%;height:auto;box-shadow:0 14px 35px #4c1d9526,0 0 0 2px #e9d5ff}.canvas-stage--disabled{cursor:wait;opacity:.85}.quiz-panel{box-sizing:border-box;text-align:left;background:#ffffffd6;border:2px solid #ead7ff;border-radius:24px;width:100%;padding:24px;box-shadow:0 12px 30px #4c1d951a}.quiz-panel h3{color:var(--text-h);margin:0 0 12px;font-size:18px}.quiz-choices{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.quiz-choice{font:inherit;border:2px solid var(--border);min-height:58px;color:var(--text-h);cursor:pointer;text-align:center;background:#fff;border-radius:14px;padding:10px 14px;font-weight:700;transition:border-color .2s,background .2s;position:relative}.quiz-choice:hover:not(:disabled){border-color:var(--accent-border)}.quiz-choice:disabled{cursor:default}.quiz-choice--selected{background:#fff7ed;border-color:#f97316}.quiz-choice--ai-top{box-shadow:none;background:#f0f9ff;border-color:#0ea5e9}.quiz-choice--selected.quiz-choice--ai-top{background:#f0fdf4;border-color:#22c55e}.quiz-choice__badges{vertical-align:middle;gap:5px;margin-left:9px;display:inline-flex}.choice-badge{color:#fff;border-radius:999px;padding:2px 7px;font-size:11px;font-weight:800;line-height:1.5}.choice-badge--user{background:#f97316}.choice-badge--ai{background:#0ea5e9}.quiz-feedback{flex-direction:column;gap:10px;margin-top:16px;display:flex}.quiz-feedback button{font:inherit;border:1px solid var(--border);color:var(--text-h);cursor:pointer;background:0 0;border-radius:999px;align-self:flex-start;padding:8px 16px;font-weight:700}@media (width<=600px){.app{padding-inline:14px}.preset-list{grid-template-columns:repeat(2,1fr)}.quiz-choices{grid-template-columns:1fr}.quiz-panel{padding:18px}.canvas-stage{border-width:3px;border-radius:18px}}.loading-overlay{z-index:10;background:#00000073;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.loading-card{background:var(--bg);border:1px solid var(--border);box-sizing:border-box;text-align:center;border-radius:12px;width:90%;max-width:360px;padding:24px}.loading-card p{color:var(--text-h);font-weight:700}.loading-progress{background:#eadff2;border-radius:999px;height:10px;margin-top:16px;overflow:hidden}.loading-progress span{border-radius:inherit;background:linear-gradient(90deg,#8b5cf6,#ec4899);height:100%;display:block}.loading-progress--indeterminate span{width:40%;animation:1.1s ease-in-out infinite loading-progress}@keyframes loading-progress{0%{transform:translate(-100%)}to{transform:translate(250%)}}@media (prefers-reduced-motion:reduce){.loading-progress--indeterminate span{animation-duration:2.5s}}