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var(--border-light);background:#fff;font-size:.65rem;font-weight:700;cursor:pointer}.btn-mini-test:hover{border-color:var(--accent-primary);color:var(--accent-primary)}@media (max-width: 768px){.chat-shell{margin:.5rem auto;border-radius:24px;height:calc(100dvh - 1rem);max-height:none}.chat-header{padding:1.2rem 1.2rem .5rem}.chat-header-top{flex-direction:column;align-items:stretch;gap:1rem}.messages-container{padding:1rem}.message-wrapper{max-width:90%}}@media (max-width: 480px){.chat-shell{width:100vw;margin:0;border-radius:0;height:100dvh}.chat-header{padding:1rem 1rem .5rem}.chat-input-area{padding:.75rem .5rem}.mode-pill{font-size:.8rem;padding:6px 12px}}.chat-shell,.chat-shell *{box-sizing:border-box}.chat-shell{max-width:100%;overflow-x:hidden}.chat-input-row{width:100%;max-width:100%;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;overflow:hidden;box-sizing:border-box;background:#fff9;border-radius:100px;padding:.4rem .6rem;border:1.5px solid rgba(0,0,0,.05);box-shadow:0 10px 25px -10px #0000000d;transition:all .3s}.chat-input-row:focus-within{background:#fff;border-color:var(--accent-primary);box-shadow:0 15px 35px -15px #2563eb26}.chat-input-row input{min-width:0;width:100%;max-width:100%;background:transparent;border:none;padding:.6rem .5rem;color:var(--text-dark);font-family:var(--font-friendly);font-size:1rem;outline:none}.chat-input-row button{flex-shrink:0;white-space:nowrap;max-width:100%}@media (max-width: 420px){.chat-input-row{gap:8px;padding-left:8px;padding-right:8px}.chat-input-row input{font-size:14px}.btn-avant{padding-left:14px!important;padding-right:14px!important}}@media (max-width: 360px){.chat-input-row{gap:6px;padding-left:6px;padding-right:6px}.btn-avant{padding-left:10px!important;padding-right:10px!important;font-size:13px!important}}.chat-brand-group{display:flex;align-items:center;gap:1.5rem}.quiz-card{width:100%;max-width:800px;margin:0 auto;padding:2.5rem;border-radius:30px;text-align:center}.quiz-header{margin-bottom:2.5rem}.quiz-badge{display:inline-block;padding:.4rem 1rem;background:var(--accent-soft);color:var(--accent-primary);border-radius:12px;font-size:.85rem;font-weight:800;text-transform:uppercase;margin-bottom:1rem}.quiz-target-word{font-size:3.5rem;font-weight:800;color:var(--accent-primary);margin-top:1rem;text-shadow:0 4px 10px rgba(37,99,235,.1)}.quiz-options{display:grid;grid-template-columns:1fr;gap:1rem;margin-bottom:2rem}.quiz-option-btn{background:#fff;border:2px solid var(--border-light);border-radius:20px;padding:1.25rem 2rem;font-family:var(--font-friendly);font-size:1.2rem;font-weight:700;color:var(--text-dark);cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;justify-content:space-between;align-items:center}.quiz-option-btn:hover:not(:disabled){border-color:var(--accent-tertiary);background:var(--bg-secondary);transform:translateY(-2px)}.quiz-option-btn.correct{background:#f0fdf4;border-color:var(--success);color:var(--success)}.quiz-option-btn.incorrect{background:#fef2f2;border-color:var(--error);color:var(--error)}.quiz-feedback{margin-top:2rem;padding:2rem;border-radius:24px;display:flex;flex-direction:column;align-items:center;gap:1.5rem}.feedback-success{color:var(--success);font-size:1.25rem;font-weight:800;display:flex;align-items:center;gap:.75rem}.feedback-error{color:var(--error);font-size:1.25rem;font-weight:800;display:flex;align-items:center;gap:.75rem}.success-bg{background:#f0fdf4;border:1px solid #bcf0da}.error-bg{background:#fef2f2;border:1px solid #fecaca}.mt-4{margin-top:1rem}