:root{--font-body: "Inter", system-ui, -apple-system, sans-serif;--color-bg: #f8fafc;--color-primary: #3b82f6;--color-primary-dark: #2563eb;--color-secondary: #8b5cf6;--color-glass: rgba(255, 255, 255, .85);--color-text: #1e293b;--color-text-muted: #64748b;--color-border: #e2e8f0}body{margin:0;font-family:var(--font-body);background-color:var(--color-bg);color:var(--color-text);background-image:radial-gradient(at 0% 0%,hsla(210,100%,93%,1) 0,transparent 50%),radial-gradient(at 100% 0%,hsla(250,100%,94%,1) 0,transparent 50%);min-height:100vh;display:flex;justify-content:center;align-items:center}h1,h2,h3{font-weight:700;letter-spacing:-.025em;color:#0f172a}button{cursor:pointer}.glass-panel{background:var(--color-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid white;border-radius:20px;box-shadow:0 4px 6px -1px #0000000d,0 10px 15px -3px #0000000d,0 0 0 1px #00000005;padding:2.5rem;max-width:600px;width:90%;margin:1rem}.btn-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));border:none;border-radius:12px;color:#fff;padding:.875rem 2rem;font-size:1.125rem;font-weight:600;transition:all .2s ease;box-shadow:0 4px 6px -1px #2563eb33}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 8px -1px #2563eb4d}.btn-primary:active{transform:translateY(0)}.btn-option{width:100%;text-align:left;padding:1.25rem;margin-bottom:.75rem;background:#fff;border:2px solid var(--color-border);border-radius:12px;color:var(--color-text);font-size:1.1rem;transition:all .2s cubic-bezier(.4,0,.2,1);font-weight:500}.btn-option:hover{border-color:var(--color-primary);background:#eff6ff}.btn-option.selected{background:#eff6ff;border-color:var(--color-primary);color:var(--color-primary-dark);box-shadow:0 0 0 4px #3b82f61a;position:relative;z-index:1}.btn-secondary{background:transparent;color:var(--color-text-muted);border:none;font-weight:600}.btn-secondary:hover{color:var(--color-text)}@keyframes svelte-1lto2fu-fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in.svelte-1lto2fu{animation:svelte-1lto2fu-fadeIn .4s ease-out forwards}.start-screen.svelte-1lto2fu{text-align:center;padding:1rem 0}.icon-header.svelte-1lto2fu{font-size:4rem;margin-bottom:1rem}h1.svelte-1lto2fu{font-size:2.25rem;color:var(--color-primary-dark);margin-bottom:1rem;line-height:1.2}.description.svelte-1lto2fu{font-size:1.125rem;line-height:1.6;color:var(--color-text-muted);margin-bottom:2.5rem}.info-badges.svelte-1lto2fu{display:flex;justify-content:center;gap:1rem;margin-bottom:2.5rem}.badge.svelte-1lto2fu{background:#e2e8f0;color:var(--color-text-muted);padding:4px 12px;border-radius:9999px;font-size:.875rem;font-weight:500}.start-btn.svelte-1lto2fu{width:100%;max-width:300px}.quiz-header.svelte-1lto2fu{margin-bottom:2rem}.progress-text.svelte-1lto2fu{display:block;font-size:.875rem;color:var(--color-text-muted);margin-bottom:.5rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.progress-bar.svelte-1lto2fu{height:6px;background:#e2e8f0;border-radius:3px;overflow:hidden}.progress-fill.svelte-1lto2fu{height:100%;background:var(--color-primary);transition:width .3s ease}h2.svelte-1lto2fu{font-size:1.5rem;margin-bottom:2rem;line-height:1.4}.options-grid.svelte-1lto2fu{display:flex;flex-direction:column;gap:.25rem}.quiz-footer.svelte-1lto2fu{margin-top:2.5rem;display:flex;justify-content:flex-end}button.svelte-1lto2fu:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(.5)}.loading.svelte-1lto2fu,.error.svelte-1lto2fu{text-align:center;padding:3rem}.spinner.svelte-1lto2fu{margin:0 auto 1rem;width:40px;height:40px;border:3px solid rgba(0,0,0,.1);border-radius:50%;border-top-color:var(--color-primary);animation:svelte-1lto2fu-spin 1s linear infinite}@keyframes svelte-1lto2fu-spin{to{transform:rotate(360deg)}}.fade-in.svelte-ukthap{animation:svelte-ukthap-fadeIn .5s ease-out}@keyframes svelte-ukthap-fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.results-panel.svelte-ukthap{display:flex;flex-direction:column;align-items:center;max-width:700px}.score-section.svelte-ukthap{text-align:center;margin-bottom:2rem}.score-circle.svelte-ukthap{width:140px;height:140px;border-radius:50%;background:#fff;border:6px solid var(--color-primary);display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto 1.5rem;box-shadow:0 0 20px #3b82f633}.score-number.svelte-ukthap{font-size:3rem;font-weight:700;color:var(--color-primary-dark);line-height:1}.score-label.svelte-ukthap{font-size:.875rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:1px;margin-top:5px}h2.svelte-ukthap{margin:0 0 .5rem;color:var(--color-primary-dark)}.summary.svelte-ukthap{color:var(--color-text-muted);margin:0}.breakdown.svelte-ukthap{width:100%;margin-bottom:2rem;text-align:left}h3.svelte-ukthap{font-size:1.25rem;margin-bottom:1rem;border-bottom:2px solid #e2e8f0;padding-bottom:.5rem}.result-item.svelte-ukthap{padding:1rem;border-radius:12px;margin-bottom:1rem;background:#fff;border:1px solid #e2e8f0;transition:all .2s}.result-item.correct.svelte-ukthap{border-left:5px solid #10b981}.result-item.incorrect.svelte-ukthap{border-left:5px solid #ef4444;background:snow}.result-header.svelte-ukthap{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.q-label.svelte-ukthap{font-weight:700;color:var(--color-text)}.status-badge.svelte-ukthap{padding:4px 10px;border-radius:999px;font-size:.75rem;font-weight:700;color:#fff;text-transform:uppercase}.bg-green.svelte-ukthap{background:#10b981}.bg-red.svelte-ukthap{background:#ef4444}.feedback-content.svelte-ukthap{margin-top:.75rem;padding-top:.75rem;border-top:1px dashed #e2e8f0}.answer-comparison.svelte-ukthap{display:flex;gap:2rem;margin-bottom:1rem;flex-wrap:wrap}.answer-comparison.svelte-ukthap p:where(.svelte-ukthap){margin:0;font-size:.95rem}.strike.svelte-ukthap{text-decoration:line-through;color:#ef4444}.correct-answer.svelte-ukthap{color:#10b981}.explanation.svelte-ukthap{background:#f1f5f9;padding:1rem;border-radius:8px;font-size:.9rem;color:var(--color-text)}.explanation.svelte-ukthap strong:where(.svelte-ukthap){display:block;color:var(--color-primary-dark);margin-bottom:.25rem}.explanation.svelte-ukthap p:where(.svelte-ukthap){margin:0;line-height:1.5}.container.svelte-1n46o8q{width:100%;display:flex;justify-content:center;padding:1rem}