*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #6366f1;--primary-light: #818cf8;--primary-dark: #4f46e5;--success: #22c55e;--danger: #ef4444;--warning: #f59e0b;--bg: #f8fafc;--surface: #ffffff;--text: #1e293b;--text-light: #64748b;--border: #e2e8f0;--radius: 12px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--shadow-lg: 0 10px 25px rgba(0,0,0,.1)}body{font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}#app{min-height:100vh}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button,.btn{cursor:pointer;font-family:inherit;font-size:.95rem;padding:.625rem 1.25rem;border-radius:8px;border:none;font-weight:600;transition:all .15s ease;display:inline-flex;align-items:center;gap:.5rem}button:active{transform:scale(.97)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-success{background:var(--success);color:#fff}.btn-success:hover{background:#16a34a}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}.btn-lg{font-size:1.1rem;padding:.875rem 2rem;border-radius:12px}.btn-sm{font-size:.8rem;padding:.4rem .85rem}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}input,select,textarea{font-family:inherit;font-size:.95rem;padding:.625rem .875rem;border:2px solid var(--border);border-radius:8px;outline:none;width:100%;transition:border-color .15s;background:#fff}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #6366f11a}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem}.container{max-width:800px;margin:0 auto;padding:1rem 1.5rem}.page-title{font-size:1.75rem;font-weight:800;margin-bottom:1.5rem;color:var(--text)}.navbar{background:#fff;border-bottom:1px solid var(--border);padding:.75rem 1.5rem;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.navbar-brand{font-size:1.25rem;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:.5rem}.navbar-nav{display:flex;align-items:center;gap:1rem}.navbar-nav a{color:var(--text-light);font-weight:500;font-size:.9rem}.navbar-nav a:hover,.navbar-nav a.router-link-active{color:var(--primary);text-decoration:none}.grid{display:grid;gap:1rem}.grid-2{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.form-group{margin-bottom:1rem}.form-group label{display:block;font-weight:600;margin-bottom:.35rem;font-size:.9rem}.badge{display:inline-block;padding:.2rem .65rem;border-radius:100px;font-size:.75rem;font-weight:600}.badge-primary{background:var(--primary);color:#fff}.badge-success{background:var(--success);color:#fff}.text-center{text-align:center}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}.flex-center{display:flex;justify-content:center;align-items:center}.gap-1{gap:.5rem}.gap-2{gap:1rem}.word-btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-size:1.5rem;font-weight:700;background:#fff;border:2px solid var(--border);border-radius:12px;cursor:pointer;letter-spacing:.15em;transition:all .15s;color:var(--text);min-width:120px}.word-btn:hover{border-color:var(--primary);background:#f0f0ff;transform:scale(1.05)}.word-btn.active{border-color:var(--success);background:#f0fdf4}.word-btn.correct{border-color:var(--success);background:#dcfce7;color:#166534}.word-btn.incorrect{border-color:var(--danger);background:#fef2f2;color:#991b1b}.audio-btn{width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;border:none;display:inline-flex;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;transition:all .15s}.audio-btn:hover{background:var(--primary-dark);transform:scale(1.1)}.audio-btn.playing{background:var(--success);animation:pulse 1s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}.progress-bar{height:8px;background:var(--border);border-radius:4px;overflow:hidden;margin:1rem 0}.progress-bar-fill{height:100%;background:var(--primary);border-radius:4px;transition:width .4s ease}.assessment-input{font-size:1.5rem;text-align:center;letter-spacing:.15em;font-weight:600;padding:.75rem}.result-card{text-align:center;padding:2.5rem 2rem}.result-score{font-size:4rem;font-weight:800;color:var(--primary)}.result-text{font-size:1.1rem;color:var(--text-light);margin:.5rem 0 1.5rem}