:root{--bg:#f5f5f8;--surface:#fff;--surface-hover:#f0f0f5;--border:#e0e0e8;--text:#1a1a2e;--text-dim:#6b6b80;--accent:#6c5ce7;--accent-glow:#6c5ce740;--correct:#00b894;--wrong:#e17055;--warn:#e1a800;--radius:12px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--accent);text-decoration:none}.container{max-width:720px;margin:0 auto;padding:2rem 1rem}.header{display:flex;align-items:center;justify-content:space-between;padding:1rem 0;border-bottom:1px solid var(--border);margin-bottom:2rem}.header h1{font-size:1.4rem;font-weight:700;background:linear-gradient(135deg,var(--accent),#a29bfe);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.header nav{display:flex;gap:.75rem}.header nav a{padding:.4rem .9rem;border-radius:var(--radius);font-size:.85rem;background:var(--surface);color:var(--text-dim);transition:all .15s}.header nav 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.label{font-size:.75rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em}.listening-indicator{display:flex;align-items:center;justify-content:center;gap:.6rem;padding:1rem}.listening-dot{width:14px;height:14px;border-radius:50%;background:var(--wrong);animation:pulse 1s ease-in-out infinite}.listening-text{font-size:.95rem;color:var(--text-dim)}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.4)}}.feedback-detail{background:var(--bg);border-radius:8px;padding:1rem;margin-top:.5rem}.feedback-detail h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);margin-bottom:.5rem}.hero{text-align:center;padding:3rem 1rem}.hero h1{font-size:2.5rem;font-weight:800;margin-bottom:1rem;background:linear-gradient(135deg,var(--accent),#a29bfe,#74b9ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero p{color:var(--text-dim);font-size:1.1rem;max-width:500px;margin:0 auto 2rem;line-height:1.6}.mode-grid{display:grid;grid-template-columns:1fr;max-width:400px;margin:1rem auto;grid-gap:1rem;gap:1rem}.mode-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;cursor:pointer;transition:all .2s}.mode-card:hover{border-color:var(--accent);background:var(--surface-hover);transform:translateY(-2px);box-shadow:0 4px 12px rgba(108,92,231,.1)}.mode-card .icon{font-size:2rem;margin-bottom:.5rem}.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));grid-gap:1rem;gap:1rem;align-items:stretch}.pron-widget{cursor:default}.pron-header{display:flex;align-items:flex-start;gap:.75rem;margin-bottom:1rem}.pron-icon{font-size:1.5rem;line-height:1}.pron-input-row{display:flex;gap:.5rem}.pron-input{flex:1 1;padding:.6rem .9rem;border:1px solid var(--border);border-radius:var(--radius);font-size:.95rem;background:var(--bg);color:var(--text);outline:none;transition:border .15s}.pron-input:focus{border-color:var(--accent)}.pron-input:disabled{opacity:.6}.back-link{display:inline-flex;align-items:center;gap:.3rem;color:var(--text-dim);font-size:.85rem;margin-bottom:1rem}.back-link:hover{color:var(--text)}.transcript-box{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:.8rem 1rem;font-size:.9rem;font-style:italic;color:var(--text-dim);min-height:3rem;margin:.5rem 0}@media (max-width:600px){.hero h1{font-size:1.8rem}.sentence-display{font-size:1.1rem}.score-bar{flex-wrap:wrap}.home-grid{grid-template-columns:1fr}}