@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap";:root{--bg-gradient: radial-gradient(circle at 50% 10%, #161f30 0%, #080c14 100%);--panel-bg: rgba(14, 22, 37, .7);--panel-border: rgba(0, 229, 255, .15);--panel-border-glow: rgba(0, 229, 255, .05);--primary-color: #00e5ff;--primary-glow: rgba(0, 229, 255, .4);--primary-hover: #80f1ff;--text-primary: #ffffff;--text-secondary: #90a4ae;--text-muted: #607d8b;--success-color: #00e676;--success-glow: rgba(0, 230, 118, .2);--error-color: #ff1744;--error-glow: rgba(255, 23, 68, .2);--warning-color: #ffb300;--border-radius: 16px;--btn-radius: 12px;--spacing-unit: 16px;--font-sans: "Outfit", -apple-system, sans-serif;--font-mono: "JetBrains Mono", monospace}*{box-sizing:border-box}body{margin:0;padding:0;background:var(--bg-gradient);color:var(--text-primary);font-family:var(--font-sans);min-height:100vh;display:flex;justify-content:center;align-items:center;overflow-x:hidden}#root{width:100%;max-width:680px;padding:calc(var(--spacing-unit) * 1.5);perspective:1000px}.quiz-header{text-align:center;margin-bottom:25px}.quiz-title{font-size:2.2rem;font-weight:800;letter-spacing:2px;margin:0;text-transform:uppercase;background:linear-gradient(135deg,#ffffff 40%,var(--primary-color) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 2px 8px rgba(0,229,255,.2))}.quiz-subtitle{color:var(--text-secondary);font-size:1rem;margin:6px 0 0;font-weight:500;letter-spacing:1px;text-transform:uppercase}.card{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--border-radius);padding:calc(var(--spacing-unit) * 2);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 12px 40px #0009,inset 0 0 20px var(--panel-border-glow);position:relative;overflow:hidden;transition:transform .3s cubic-bezier(.25,.8,.25,1),box-shadow .3s cubic-bezier(.25,.8,.25,1)}.card:hover{box-shadow:0 16px 48px #000000b3,0 0 30px #00e5ff14,inset 0 0 20px #00e5ff0d}.card-header{display:flex;justify-content:flex-end;margin-bottom:12px}.category-badge{font-family:var(--font-mono);font-size:.75rem;font-weight:700;color:var(--primary-color);background:#00e5ff1a;padding:4px 10px;border-radius:20px;border:1px solid rgba(0,229,255,.2);letter-spacing:.5px}.question-text{font-size:1.45rem;font-weight:600;line-height:1.4;margin-top:0;margin-bottom:24px}.loading-card{text-align:center;font-size:1.2rem;color:var(--text-secondary);padding:calc(var(--spacing-unit) * 3)}.quiz-status-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:.9rem;color:var(--text-secondary);font-weight:500}.quiz-progress-text{font-family:var(--font-mono);letter-spacing:.5px}.score-display{display:flex;gap:12px;font-weight:700}.score-correct{color:var(--success-color);text-shadow:0 0 8px var(--success-glow)}.score-incorrect{color:var(--error-color);text-shadow:0 0 8px var(--error-glow)}.progress-bar{height:6px;background-color:#ffffff0d;border-radius:10px;margin-bottom:25px;overflow:hidden;border:1px solid rgba(255,255,255,.03)}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary-color),#00b0ff);box-shadow:0 0 10px var(--primary-glow);transition:width .4s cubic-bezier(.4,0,.2,1)}.options-grid{display:flex;flex-direction:column;gap:12px}.btn-option{background:#ffffff05;border:1px solid rgba(255,255,255,.08);color:var(--text-primary);padding:16px 20px;border-radius:var(--btn-radius);cursor:pointer;font-family:var(--font-mono);font-size:1.05rem;font-weight:500;text-align:left;transition:all .2s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;width:100%}.btn-option:before{content:"";position:absolute;left:0;top:0;height:100%;width:4px;background-color:transparent;transition:background-color .2s}.btn-option:hover:not(:disabled){background:#00e5ff08;border-color:#00e5ff66;transform:translateY(-2px);box-shadow:0 4px 15px #00e5ff0d}.btn-option:hover:not(:disabled):before{background-color:var(--primary-color)}.btn-option:active:not(:disabled){transform:translateY(0)}.btn-option.correct{background:#00e67614!important;border-color:var(--success-color)!important;color:var(--success-color);font-weight:700;box-shadow:0 0 15px var(--success-glow)}.btn-option.correct:before{background-color:var(--success-color)}.btn-option.incorrect{background:#ff174414!important;border-color:var(--error-color)!important;color:var(--error-color);font-weight:700;box-shadow:0 0 15px var(--error-glow)}.btn-option.incorrect:before{background-color:var(--error-color)}.btn-option.dimmed{opacity:.35;filter:grayscale(40%)}.action-row{margin-top:25px;display:flex;justify-content:space-between;align-items:center;gap:15px;padding-top:15px;border-top:1px solid rgba(255,255,255,.06)}.feedback-hint{color:var(--error-color);font-size:.9rem;font-weight:500}.btn-next{background:var(--primary-color);color:#04080f;border:none;padding:12px 24px;border-radius:var(--btn-radius);font-family:var(--font-sans);font-size:.95rem;font-weight:700;cursor:pointer;box-shadow:0 0 15px var(--primary-glow);transition:all .2s;text-transform:uppercase;letter-spacing:.5px}.btn-next:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 0 22px #00e5ff99}.btn-next:active{transform:translateY(0)}.explanation-panel{margin-top:20px;padding:16px 20px;background:#00e5ff0f;border:1px solid var(--panel-border);border-radius:var(--btn-radius);border-left:3px solid var(--primary-color)}.explanation-label{font-family:var(--font-sans);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--primary-color);margin-bottom:8px}.explanation-text{margin:0;font-size:.9rem;line-height:1.6;color:var(--text-secondary);font-weight:400}.result-card{text-align:center}.result-title{font-size:1.8rem;font-weight:800;text-transform:uppercase;letter-spacing:1px;margin-bottom:20px}.status-banner{padding:10px 20px;border-radius:30px;font-weight:800;letter-spacing:1px;font-size:.9rem;display:inline-block;margin-bottom:25px;box-shadow:0 4px 10px #0003}.status-high{background:#00e6761a;color:var(--success-color);border:1px solid rgba(0,230,118,.3);box-shadow:0 0 15px #00e67626}.status-medium{background:#ffb3001a;color:var(--warning-color);border:1px solid rgba(255,179,0,.3);box-shadow:0 0 15px #ffb30026}.status-low{background:#ff17441a;color:var(--error-color);border:1px solid rgba(255,23,68,.3);box-shadow:0 0 15px #ff174426}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:25px}.stat-box{background:#ffffff05;border:1px solid rgba(255,255,255,.05);padding:20px 15px;border-radius:var(--border-radius);transition:transform .2s}.stat-box:hover{transform:translateY(-2px);border-color:#ffffff14}.stat-value{font-family:var(--font-mono);font-size:2rem;font-weight:700;color:var(--primary-color)}.stat-label{font-size:.8rem;text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);margin-top:4px}.btn-primary-action{width:100%;background:transparent;border:2px solid var(--primary-color);color:var(--primary-color);padding:16px;border-radius:var(--btn-radius);font-size:1.1rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;cursor:pointer;transition:all .2s;box-shadow:0 0 12px #00e5ff1a}.btn-primary-action:hover{background:var(--primary-color);color:#04080f;box-shadow:0 0 20px var(--primary-glow);transform:translateY(-2px)}.btn-primary-action:active{transform:translateY(0)}.review-heading{text-align:left;margin-top:35px;margin-bottom:15px;font-size:1.2rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:8px}.review-list{display:flex;flex-direction:column;gap:14px;text-align:left}.review-item{background:#ffffff04;border-radius:var(--btn-radius);padding:16px;border:1px solid rgba(255,255,255,.05);position:relative}.review-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.review-index{font-family:var(--font-mono);font-size:.8rem;font-weight:700;color:var(--text-muted)}.review-status-badge{font-size:.7rem;font-weight:800;padding:2px 8px;border-radius:4px;letter-spacing:.5px}.review-correct{border-left:4px solid var(--success-color)}.review-correct .review-status-badge{background:#00e6761a;color:var(--success-color);border:1px solid rgba(0,230,118,.2)}.review-incorrect{border-left:4px solid var(--error-color)}.review-incorrect .review-status-badge{background:#ff17441a;color:var(--error-color);border:1px solid rgba(255,23,68,.2)}.review-question{font-size:1.05rem;font-weight:600;color:var(--text-primary);margin-bottom:12px;line-height:1.35}.review-details{background:#00000026;border-radius:8px;padding:10px 14px;font-family:var(--font-mono);font-size:.85rem;display:flex;flex-direction:column;gap:6px}.review-detail-row{display:flex;justify-content:space-between;align-items:center}.detail-label{color:var(--text-secondary)}.detail-value{font-weight:500}.detail-value.correct-value{color:var(--success-color)}.detail-value.incorrect-value{color:var(--error-color)}.fade-in{animation:fadeIn .4s cubic-bezier(.25,.46,.45,.94) both}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:576px){#root{padding:var(--spacing-unit)}.card{padding:calc(var(--spacing-unit) * 1.25)}.quiz-title{font-size:1.8rem}.question-text{font-size:1.25rem}.btn-option{padding:14px 16px;font-size:.95rem}.stat-value{font-size:1.6rem}}