@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--color-primary:#774aa4;--color-primary-dark:#583381;--color-primary-light:#f2ecf8;--color-accent:#ff8300;--color-accent-hover:#e07300;--color-success:#2ecc71;--color-success-light:#eaf9f0;--color-error:#e74c3c;--color-error-light:#fdeded;--color-bg:#f8f9fa;--color-surface:#fff;--color-border:#e8ebef;--color-text:#2b2c34;--color-text-muted:#6b7280;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--border-radius:8px;--box-shadow:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--box-shadow-hover:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--transition:all .2s ease-in-out}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:var(--color-primary);transition:var(--transition);text-decoration:none}a:hover{color:var(--color-primary-dark)}.btn{border-radius:var(--border-radius);cursor:pointer;transition:var(--transition);font-weight:500;font-family:var(--font-family);border:1px solid #0000;justify-content:center;align-items:center;gap:.5rem;padding:.5rem 1.2rem;font-size:.95rem;display:inline-flex}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-dark);box-shadow:var(--box-shadow);transform:translateY(-1px)}.btn-outline{border-color:var(--color-primary);color:var(--color-primary);background-color:#0000}.btn-outline:hover{background-color:var(--color-primary-light)}.btn-secondary{background-color:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.btn-secondary:hover{background-color:var(--color-bg);border-color:var(--color-text-muted)}.card{background-color:var(--color-surface);border-radius:var(--border-radius);box-shadow:var(--box-shadow);border:1px solid var(--color-border);transition:var(--transition);padding:1.5rem}.card-hover:hover{box-shadow:var(--box-shadow-hover);border-color:var(--color-primary-light);transform:translateY(-4px)}.container{max-width:1000px;margin:0 auto;padding:0 1.5rem}.page-title{color:var(--color-text);margin-bottom:.5rem;font-size:2rem;font-weight:700}.page-subtitle{color:var(--color-text-muted);margin-bottom:2rem;font-size:1.1rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:.5rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.mt-4{margin-top:1rem}.mt-8{margin-top:2rem}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.mb-8{margin-bottom:2rem}.w-full{width:100%}.text-center{text-align:center}code{color:#d63384;background-color:#f1f1f1;border-radius:4px;padding:.2em .4em;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.9em}pre code{color:inherit;background-color:#0000;padding:0}pre{color:#abb2bf;border-radius:var(--border-radius);background-color:#282c34;margin-top:.5rem;margin-bottom:1rem;padding:1rem;overflow-x:auto}.option-label{background-color:var(--color-bg);width:28px;height:28px;color:var(--color-text-muted);border:1px solid var(--color-border);border-radius:4px;justify-content:center;align-items:center;margin-right:1rem;font-weight:600;display:inline-flex}.option-btn{text-align:left;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--border-radius);cursor:pointer;width:100%;transition:var(--transition);font-family:var(--font-family);color:var(--color-text);align-items:center;margin-bottom:.5rem;padding:1rem;font-size:1rem;display:flex}.option-btn:hover:not(:disabled){border-color:var(--color-primary);background-color:var(--color-primary-light)}.option-btn:hover:not(:disabled) .option-label{background-color:var(--color-primary);color:#fff;border-color:var(--color-primary)}.option-btn.correct{border-color:var(--color-success);background-color:var(--color-success-light);color:#1e8449}.option-btn.correct .option-label{background-color:var(--color-success);border-color:var(--color-success);color:#fff}.option-btn.incorrect{border-color:var(--color-error);background-color:var(--color-error-light);color:#922b21}.option-btn.incorrect .option-label{background-color:var(--color-error);border-color:var(--color-error);color:#fff}