:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--text-primary:#0f172a;--text-secondary:#475569;--accent:#3b82f6;--accent-hover:#2563eb;--success:#10b981;--border:#e2e8f0;--glass-bg:#ffffffb3;--glass-border:#ffffff80;--shadow:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f}:root[data-theme=dark]{--bg-primary:#0f172a;--bg-secondary:#1e293b;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#3b82f6;--accent-hover:#60a5fa;--success:#10b981;--border:#334155;--glass-bg:#1e293bb3;--glass-border:#ffffff1a;--shadow:0 10px 15px -3px #00000080, 0 4px 6px -2px #0000004d}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif;transition:background-color .3s,color .3s}.app-container{max-width:1200px;margin:0 auto;padding:2rem}.navbar{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--glass-border);box-shadow:var(--shadow);border-radius:16px;justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1rem 2rem;display:flex}.nav-links{gap:1.5rem;display:flex}.nav-link{color:var(--text-secondary);font-weight:500;text-decoration:none;transition:color .2s}.nav-link:hover,.nav-link.active{color:var(--accent)}.nav-title{color:var(--text-primary);font-size:1.25rem;font-weight:700}.glass-card{background:var(--bg-secondary);border:1px solid var(--glass-border);box-shadow:var(--shadow);border-radius:16px;padding:2rem;transition:transform .2s,box-shadow .2s}.glass-card:hover{transform:translateY(-2px);box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-weight:600;transition:all .2s;display:inline-flex}.btn:hover{background:var(--accent-hover);transform:scale(1.02)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-secondary{color:var(--text-primary);border:1px solid var(--border);background:0 0}.btn-secondary:hover{background:var(--border)}.btn-danger{background:#ef4444}.btn-danger:hover{background:#dc2626}.form-group{margin-bottom:1.5rem}.form-label{color:var(--text-secondary);margin-bottom:.5rem;font-weight:500;display:block}.form-input,.form-textarea,.form-select{background:var(--bg-primary);border:1px solid var(--border);width:100%;color:var(--text-primary);border-radius:8px;padding:.75rem;font-family:inherit;transition:border-color .2s,box-shadow .2s}.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #3b82f633}.scores-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-top:1.5rem;display:grid}.score-card{background:var(--bg-primary);text-align:center;border:1px solid var(--border);border-radius:12px;padding:1.5rem;transition:transform .3s}.score-card:hover{transform:scale(1.05)}.score-value{color:var(--success);margin-bottom:.5rem;font-size:2.5rem;font-weight:700}.score-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.875rem}.feedback-text{background:var(--bg-primary);border-left:4px solid var(--accent);border-radius:4px;margin-top:1.5rem;padding:1rem}.text-center{text-align:center}.mt-4{margin-top:1rem}.mb-4{margin-bottom:1rem}.mb-2{margin-bottom:.5rem}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:.5rem}.gap-4{gap:1rem}.w-full{width:100%}.audio-list-item:hover{background:var(--bg-secondary)!important;border-color:var(--accent)!important}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.05)}}.animate-pulse{animation:2s cubic-bezier(.4,0,.6,1) infinite pulse}.markdown-container{color:var(--text-primary);line-height:1.7}.markdown-container h1,.markdown-container h2,.markdown-container h3,.markdown-container h4{color:var(--text-primary);border-bottom:1px solid var(--glass-border);margin-top:1.5em;margin-bottom:.5em;padding-bottom:.3em}.markdown-container h1{font-size:2em}.markdown-container h2{font-size:1.5em}.markdown-container p{margin-bottom:1em}.markdown-container a{color:var(--accent);text-decoration:none}.markdown-container a:hover{text-decoration:underline}.markdown-container ul,.markdown-container ol{margin-bottom:1em;padding-left:2em}.markdown-container li{margin-bottom:.5em}.markdown-container blockquote{border-left:4px solid var(--accent);color:var(--text-secondary);background:var(--bg-secondary);border-radius:4px;margin:1.5em 0;padding:1em}.markdown-container code{background:var(--bg-secondary);border-radius:4px;padding:.2em .4em;font-family:monospace;font-size:.9em}.markdown-container pre{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:1em;overflow-x:auto}.markdown-container pre code{background:0 0;border:none;padding:0}@media (width<=768px){body{padding:.5rem}.app-container{padding:1rem}.navbar{text-align:center;flex-direction:column;align-items:center;gap:1rem;padding:1.5rem}.nav-links{flex-wrap:wrap;justify-content:center;gap:.5rem;width:100%}.glass-card{padding:1.5rem}.split-layout{flex-direction:column!important;min-height:auto!important}.sidebar{border-bottom:1px solid var(--border);max-height:250px;border-right:none!important;width:100%!important}.responsive-pad{padding:1rem!important}.mobile-stack{flex-direction:column!important;gap:1rem!important}.waveform-container{flex-direction:column;align-items:stretch!important}.waveform-controls{justify-content:space-between;width:100%;margin-top:.5rem;display:flex}.nav-title{font-size:1.75rem!important}.btn{width:100%!important}}