.upe-engine{--upe-primary:#CF2E2E;--upe-primary-dk:#B32929;--upe-success:#059669;--upe-danger:#dc2626;--upe-warning:#d97706;--upe-bg:#ffffff;--upe-bg-alt:#f5f5f5;--upe-bg-hover:#f0f0f0;--upe-border:#e0e0e0;--upe-text:#000000;--upe-text-muted:#64748b;--upe-text-light:#94a3b8;--upe-radius:12px;--upe-radius-sm:8px;--upe-shadow:0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);--upe-shadow-lg:0 10px 25px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.06);--upe-transition:200ms cubic-bezier(0.4, 0, 0.2, 1);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--upe-text);line-height:1.6;max-width:640px;margin:0 auto;padding:20px 16px;box-sizing:border-box}.upe-engine *,.upe-engine *::before,.upe-engine *::after{box-sizing:border-box}.upe-card{background:var(--upe-bg);border:1px solid var(--upe-border);border-radius:var(--upe-radius);box-shadow:var(--upe-shadow);overflow:hidden;animation:upe-fadeUp 400ms ease-out}.upe-card--centered{text-align:center;padding:48px 24px}.upe-card__header{padding:28px 24px 0}.upe-card__title{font-size:22px;font-weight:700;margin:0 0 6px;color:var(--upe-text);letter-spacing:-.02em}.upe-card__subtitle{font-size:15px;color:var(--upe-text-muted);margin:0;line-height:1.5}.upe-card__body{padding:20px 24px 28px}.upe-form-group{margin-bottom:16px}.upe-form-group label{display:block;font-size:13px;font-weight:600;color:var(--upe-text);margin-bottom:6px;text-transform:uppercase;letter-spacing:.04em}.upe-input{width:100%;padding:12px 14px;font-size:16px;border:1.5px solid var(--upe-border);border-radius:var(--upe-radius-sm);background:var(--upe-bg);color:var(--upe-text);transition:border-color var(--upe-transition),box-shadow var(--upe-transition);outline:none}.upe-input:focus{border-color:var(--upe-primary);box-shadow:0 0 0 3px rgb(26 86 219 / .12)}.upe-inline-input{display:inline-block;width:120px;padding:4px 8px;font-size:inherit;font-family:inherit;border:none;border-bottom:2px solid var(--upe-primary);background:#fff0;color:var(--upe-primary);outline:none;text-align:center;transition:border-color var(--upe-transition)}.upe-inline-input:focus{border-bottom-color:var(--upe-primary-dk)}.upe-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;font-size:16px;font-weight:600;border:none;border-radius:var(--upe-radius-sm);cursor:pointer;transition:all var(--upe-transition);width:100%;text-align:center}.upe-btn--primary{background:var(--upe-primary);color:#fff}.upe-btn--primary:hover{background:var(--upe-primary-dk);transform:translateY(-1px);box-shadow:var(--upe-shadow)}.upe-btn--primary:disabled{background:var(--upe-text-light);cursor:not-allowed;transform:none}.upe-btn--secondary{background:var(--upe-bg-alt);color:var(--upe-text);border:1.5px solid var(--upe-border)}.upe-btn--secondary:hover{background:var(--upe-bg-hover)}.upe-btn--ghost{background:#fff0;color:var(--upe-text-muted);padding:10px 20px;font-size:14px}.upe-btn--ghost:hover{color:var(--upe-text);background:var(--upe-bg-alt)}.upe-btn--sm{padding:10px 20px;font-size:14px;width:auto;margin-top:16px}.upe-btn--record{width:64px;height:64px;border-radius:50%;background:var(--upe-danger);color:#fff;font-size:24px;padding:0;flex-direction:column;gap:2px}.upe-btn--record .upe-btn__label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.upe-btn--recording{animation:upe-pulse 1.5s ease-in-out infinite}.upe-progress{margin-bottom:20px}.upe-progress__bar{height:6px;background:var(--upe-bg-alt);border-radius:3px;overflow:hidden}.upe-progress__fill{height:100%;background:var(--upe-primary);border-radius:3px;width:0%;transition:width 600ms ease-out}.upe-progress__meta{display:flex;justify-content:space-between;margin-top:8px;font-size:13px}.upe-progress__ability{color:var(--upe-text-muted);font-weight:500}.upe-progress__level{color:var(--upe-primary);font-weight:700;font-size:14px}.upe-strikes{display:flex;justify-content:center;gap:8px;margin-top:16px}.upe-strike{width:10px;height:10px;border-radius:50%;background:var(--upe-border);transition:all var(--upe-transition)}.upe-strike--active{background:var(--upe-danger);transform:scale(1.2);box-shadow:0 0 8px rgb(220 38 38 / .3)}.upe-question__prompt{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.4;color:var(--upe-text)}.upe-question__context{font-size:15px;color:var(--upe-text-muted);margin-bottom:20px;padding:12px 16px;background:var(--upe-bg-alt);border-radius:var(--upe-radius-sm);border-left:3px solid var(--upe-primary);line-height:1.5}.upe-question__skill{display:inline-block;margin-top:16px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--upe-text-light);padding:4px 10px;background:var(--upe-bg-alt);border-radius:4px}.upe-options{display:flex;flex-direction:column;gap:10px;margin-top:16px}.upe-options--binary{flex-direction:row;gap:12px}.upe-option{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--upe-bg);border:1.5px solid var(--upe-border);border-radius:var(--upe-radius-sm);cursor:pointer;transition:all var(--upe-transition);text-align:left;font-size:15px;width:100%}.upe-option:hover{border-color:var(--upe-primary);background:rgb(26 86 219 / .04)}.upe-option--selected{border-color:var(--upe-primary);background:rgb(26 86 219 / .08);box-shadow:0 0 0 2px rgb(26 86 219 / .15)}.upe-option--binary{flex:1;justify-content:center;font-weight:600;padding:16px}.upe-option__key{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;background:var(--upe-bg-alt);font-size:13px;font-weight:700;color:var(--upe-text-muted);flex-shrink:0}.upe-option--selected .upe-option__key{background:var(--upe-primary);color:#fff}.upe-option__text{flex:1}.upe-reorder{margin-top:16px}.upe-reorder__result{min-height:52px;padding:12px;background:var(--upe-bg-alt);border:2px dashed var(--upe-border);border-radius:var(--upe-radius-sm);margin-bottom:12px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}.upe-reorder__placeholder{color:var(--upe-text-light);font-size:14px}.upe-reorder__pool{display:flex;flex-wrap:wrap;gap:8px}.upe-chip{padding:8px 14px;font-size:14px;font-weight:500;border-radius:20px;border:1.5px solid var(--upe-border);background:var(--upe-bg);cursor:pointer;transition:all var(--upe-transition)}.upe-chip:hover{border-color:var(--upe-primary);background:rgb(26 86 219 / .04)}.upe-chip--used{opacity:.4;transform:scale(.95)}.upe-chip--placed{background:var(--upe-primary);color:#fff;border-color:var(--upe-primary)}.upe-matching{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}.upe-match-item{padding:12px 14px;font-size:14px;border:1.5px solid var(--upe-border);border-radius:var(--upe-radius-sm);background:var(--upe-bg);cursor:pointer;transition:all var(--upe-transition);text-align:left}.upe-match-item:hover{border-color:var(--upe-primary)}.upe-match-item--active{border-color:var(--upe-primary);background:rgb(26 86 219 / .08);box-shadow:0 0 0 2px rgb(26 86 219 / .15)}.upe-match-item--matched{opacity:.5;pointer-events:none;border-color:var(--upe-success)}.upe-passage{margin-bottom:20px;padding:16px 20px;background:var(--upe-bg-alt);border-radius:var(--upe-radius-sm);border:1px solid var(--upe-border);max-height:220px;overflow-y:auto}.upe-passage__text{font-size:15px;line-height:1.7;color:var(--upe-text)}.upe-audio-player{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding:12px 16px;background:var(--upe-bg-alt);border-radius:var(--upe-radius-sm)}.upe-audio-player__hint{font-size:13px;color:var(--upe-text-muted)}.upe-recorder{display:flex;flex-direction:column;align-items:center;padding:24px 0;gap:16px}.upe-recorder__controls{display:flex;align-items:center;gap:16px}.upe-recorder__timer{font-size:20px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--upe-text-muted);min-width:48px}.upe-recorder__visualizer{width:100%;height:48px;background:var(--upe-bg-alt);border-radius:var(--upe-radius-sm)}.upe-feedback{display:flex;align-items:center;gap:10px;padding:14px 16px;border-radius:var(--upe-radius-sm);margin-top:16px;font-size:15px;font-weight:500;opacity:0;transform:translateY(8px);transition:all 300ms ease-out}.upe-feedback--visible{opacity:1;transform:translateY(0)}.upe-feedback--correct{background:rgb(5 150 105 / .1);color:var(--upe-success);border:1px solid rgb(5 150 105 / .2)}.upe-feedback--incorrect{background:rgb(220 38 38 / .08);color:var(--upe-danger);border:1px solid rgb(220 38 38 / .15)}.upe-feedback__icon{font-size:20px;font-weight:700}.upe-ceiling-badge,.upe-result-badge{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:16px;background:var(--upe-primary);color:#fff;font-size:24px;font-weight:800;margin-bottom:12px;letter-spacing:-.02em}.upe-ceiling-skills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}.upe-skill-tag{padding:6px 12px;font-size:13px;font-weight:500;border-radius:6px}.upe-skill-tag--fail{background:rgb(220 38 38 / .08);color:var(--upe-danger);border:1px solid rgb(220 38 38 / .15)}.upe-upsell{padding-top:20px;border-top:1px solid var(--upe-border)}.upe-upsell h3{font-size:17px;font-weight:700;margin:0 0 8px}.upe-upsell p{font-size:14px;color:var(--upe-text-muted);margin:0 0 16px;line-height:1.5}.upe-skills-breakdown{margin-bottom:24px}.upe-skill-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.upe-skill-row__label{width:90px;font-size:13px;font-weight:600;color:var(--upe-text-muted);text-transform:uppercase;letter-spacing:.04em;flex-shrink:0}.upe-skill-row__bar{flex:1;height:8px;background:var(--upe-bg-alt);border-radius:4px;overflow:hidden}.upe-skill-row__fill{height:100%;background:var(--upe-primary);border-radius:4px;transition:width 800ms ease-out}.upe-skill-row__pct{width:36px;text-align:right;font-size:14px;font-weight:700;color:var(--upe-text)}.upe-purchase-options h3{font-size:17px;font-weight:700;margin:0 0 16px}.upe-purchase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.upe-purchase-card{display:flex;flex-direction:column;align-items:center;padding:20px 12px;border:1.5px solid var(--upe-border);border-radius:var(--upe-radius-sm);text-decoration:none;color:var(--upe-text);transition:all var(--upe-transition);text-align:center}.upe-purchase-card:hover{border-color:var(--upe-primary);transform:translateY(-2px);box-shadow:var(--upe-shadow)}.upe-purchase-card--highlight{border-color:var(--upe-primary);background:rgb(26 86 219 / .04)}.upe-purchase-card__label{font-size:15px;font-weight:700;margin-bottom:4px}.upe-purchase-card__desc{font-size:12px;color:var(--upe-text-muted)}.upe-spinner{width:40px;height:40px;border:3px solid var(--upe-border);border-top-color:var(--upe-primary);border-radius:50%;animation:upe-spin 800ms linear infinite;margin:0 auto 20px}.upe-loading{text-align:center;padding:24px;color:var(--upe-text-muted);font-size:14px}.upe-error{text-align:center;padding:24px;color:var(--upe-danger);font-size:14px}@keyframes upe-fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes upe-spin{to{transform:rotate(360deg)}}@keyframes upe-pulse{0%,100%{box-shadow:0 0 0 0 rgb(220 38 38 / .4)}50%{box-shadow:0 0 0 12px #fff0}}.upe-shake{animation:upe-shake 400ms ease-out}@keyframes upe-shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-8px)}50%{transform:translateX(8px)}75%{transform:translateX(-4px)}}@media (max-width:480px){.upe-engine{padding:12px 12px}.upe-card__header{padding:20px 16px 0}.upe-card__body{padding:16px 16px 20px}.upe-purchase-grid{grid-template-columns:1fr}.upe-matching{grid-template-columns:1fr}}