:root{--color-primary: #2563EB;--color-primary-dark: #1E40AF;--color-bg: #F8FAFC;--color-surface: #FFFFFF;--color-text: #0F172A;--color-text-muted: #334155;--color-border: #E2E8F0;--color-success-bg: #ECFDF5;--color-success-text: #047857;--color-success-border: #10B981;--color-error-bg: #FEF2F2;--color-error-text: #B91C1C;--radius: 12px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--font-base: "Inter", sans-serif}body.high-contrast{--color-primary: #000080;--color-primary-dark: #000000;--color-bg: #FFFFFF;--color-surface: #FFFFFF;--color-text: #000000;--color-text-muted: #000000;--color-border: #000000;--color-success-bg: #E6FFE6;--color-success-text: #000000;--color-success-border: #000000;--color-error-bg: #FFE6E6;--color-error-text: #000000}body.dark-mode{--color-bg: #1e293b;--color-surface: #334155;--color-text: #f8fafc;--color-text-muted: #e2e8f0;--color-border: #475569;--color-success-bg: #064E3B;--color-success-text: #D1FAE5;--color-success-border: #059669;--color-error-bg: #7F1D1D;--color-error-text: #FEE2E2}body.large-text{font-size:125%}body.reduce-motion *{animation:none!important;transition:none!important}*{box-sizing:border-box}body{margin:0;font-family:var(--font-base);background-color:var(--color-bg);color:var(--color-text);line-height:1.7;letter-spacing:.015em;min-height:100vh;transition:background-color .3s,color .3s;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}h1,h2,h3,h4{margin-top:0;line-height:1.4;color:var(--color-text);letter-spacing:-.01em}p{margin-top:0;margin-bottom:1rem}button{font-family:inherit;cursor:pointer;border:none}.large-text{font-size:1.25rem;line-height:1.7}#root{max-width:1000px;margin:0 auto;padding:20px;min-height:100vh;display:flex;flex-direction:column}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid var(--color-border)}.app-title{font-size:1.5rem;font-weight:700;color:var(--color-primary);text-decoration:none;background:none;padding:0}main{flex:1}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.875rem 1.5rem;border-radius:var(--radius);font-weight:600;transition:transform .1s,opacity .2s;text-decoration:none;font-size:1rem;letter-spacing:.02em}.btn:active{transform:scale(.98)}.btn:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px}.btn-primary{background-color:var(--color-primary);color:#fff!important}.btn-primary:hover{background-color:var(--color-primary-dark)}.btn-secondary{background-color:var(--color-surface);color:var(--color-text);border:2px solid var(--color-border)}.btn-secondary:hover{border-color:var(--color-text-muted)}.btn-large{width:100%;text-align:left;justify-content:flex-start;padding:1.5rem;margin-bottom:1rem;font-size:1.15rem;background-color:var(--color-surface);border:2px solid var(--color-border);box-shadow:var(--shadow);line-height:1.6;color:var(--color-text)}.btn-large:hover{border-color:var(--color-primary);background-color:#f0f9ff}.card{background:var(--color-surface);border-radius:var(--radius);padding:2rem;box-shadow:var(--shadow);border:1px solid var(--color-border)}.scenario-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.scenario-card{display:flex;flex-direction:column;height:100%;cursor:pointer;transition:transform .2s;text-align:left;padding:1.5rem}.scenario-card:hover{transform:translateY(-4px);border-color:var(--color-primary)}.scenario-icon{font-size:3rem;margin-bottom:1rem}.scenario-title{font-size:1.25rem;font-weight:700;margin-bottom:.5rem}.tag{display:inline-block;background:var(--color-border);padding:.35rem .75rem;border-radius:999px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-right:.5rem;margin-top:.5rem;color:var(--color-text-muted)}.tag.done{background-color:var(--color-success-bg);color:var(--color-success-text);border:1px solid var(--color-success-border)}.player-container{max-width:700px;margin:0 auto}.context-box{background:#eff6ff;border-left:6px solid var(--color-primary);padding:2rem;margin-bottom:2rem;border-radius:var(--radius)}.prompt-text{font-size:1.5rem;font-weight:700;margin-bottom:1.5rem;line-height:1.5;color:var(--color-text)}.feedback-panel{margin-top:1.5rem;padding:2rem;border-radius:var(--radius);animation:fadeIn .3s ease;border-width:2px;border-style:solid}.feedback-header{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.feedback-icon{font-size:1.5rem;display:flex;align-items:center;justify-content:center;width:3rem;height:3rem;border-radius:50%;font-weight:700;background-color:var(--color-surface);border:1px solid rgba(0,0,0,.1);flex-shrink:0}.feedback-positive{background-color:var(--color-success-bg);color:var(--color-success-text);border-color:var(--color-success-border)}.feedback-positive .feedback-icon{color:var(--color-success-text);border-color:var(--color-success-border)}.feedback-negative{background-color:var(--color-surface);color:var(--color-text);border-color:var(--color-text-muted);border-left-width:6px;border-left-color:var(--color-text-muted)}.feedback-negative .feedback-icon{background-color:var(--color-border);color:var(--color-text-muted)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.settings-group{margin-bottom:2rem}.toggle-row{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 0;border-bottom:1px solid var(--color-border)}.input-field{width:100%;padding:1rem;border:2px solid var(--color-border);border-radius:var(--radius);font-size:1rem;margin-bottom:1rem}.hidden{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}