*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0f0f0f;--card:#1a1a1a;--card2:#222;--border:#2a2a2a;--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:#4f46e526;--text:#f1f1f1;--text-muted:#888;--text-dim:#555;--success:#22c55e;--warning:#f59e0b;--danger:#ef4444;--radius:12px;--radius-sm:8px;--radius-lg:16px;--nav-height:64px;--shadow-md:0 4px 16px #0006;--session-conversation:#3b82f6;--session-ielts:#8b5cf6;--session-business:#f97316;--session-vocab:#10b981}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:system-ui,-apple-system,sans-serif}#root{min-height:100vh}.page{max-width:480px;min-height:100vh;padding-bottom:calc(var(--nav-height) + 16px);margin:0 auto}@media (width>=768px){.page{max-width:720px;padding-bottom:32px}}@media (width>=1024px){.page{max-width:960px}}.page-header{align-items:center;gap:12px;padding:20px 20px 0;display:flex}.page-title{color:var(--text);font-size:22px;font-weight:700}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.btn{border-radius:var(--radius-sm);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-family:inherit;font-size:15px;font-weight:600;text-decoration:none;transition:all .15s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--card2);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:#2a2a2a}.btn-ghost{color:var(--text-muted);background:0 0}.btn-ghost:hover{color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-full{width:100%}input,textarea,select{background:var(--card2);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);outline:none;width:100%;padding:12px 14px;font-family:inherit;font-size:15px;transition:border-color .15s}input:focus,textarea:focus,select:focus{border-color:var(--primary)}textarea{resize:vertical;min-height:100px}label{color:var(--text-muted);margin-bottom:6px;font-size:13px;display:block}.form-group{margin-bottom:16px}.bottom-nav{height:var(--nav-height);background:var(--card);border-top:1px solid var(--border);z-index:100;justify-content:space-around;align-items:center;max-width:480px;margin:0 auto;display:flex;position:fixed;bottom:0;left:0;right:0}@media (width>=768px){.bottom-nav{border-radius:16px 16px 0 0;max-width:720px}}@media (width>=1024px){.bottom-nav{max-width:960px}}.nav-item{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-dim);background:0 0;border:none;flex-direction:column;align-items:center;gap:4px;padding:8px 16px;font-family:inherit;font-size:11px;text-decoration:none;transition:color .15s;display:flex}.nav-item.active{color:var(--primary)}.nav-item:hover{color:var(--text-muted)}@media (width>=768px){.dashboard-menu-grid{grid-template-columns:repeat(3,1fr)!important}}@media (width>=1024px){.dashboard-menu-grid{grid-template-columns:repeat(4,1fr)!important}}.nav-icon{font-size:22px}.modal-overlay{z-index:200;background:#000000b3;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:360px;padding:24px}.modal-title{text-align:center;margin-bottom:16px;font-size:18px;font-weight:700}.badge{border-radius:20px;align-items:center;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge-primary{background:var(--primary-light);color:var(--primary)}.badge-success{color:var(--success);background:#22c55e26}.badge-warning{color:var(--warning);background:#f59e0b26}.spinner{border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:20px;height:20px;animation:.6s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.loading-center{color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:60px 20px;display:flex}.progress-bar{background:var(--border);border-radius:3px;height:6px;overflow:hidden}.progress-fill{background:var(--primary);border-radius:3px;height:100%;transition:width .3s}.tabs{background:var(--card2);border-radius:var(--radius-sm);gap:4px;padding:4px;display:flex}.tab{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;flex:1;padding:8px;font-family:inherit;font-size:13px;font-weight:600;transition:all .15s}.tab.active{background:var(--primary);color:#fff}.divider{background:var(--border);height:1px;margin:16px 0}.empty-state{text-align:center;color:var(--text-muted);padding:40px 20px}.empty-state .emoji{margin-bottom:12px;font-size:48px}.empty-state p{font-size:14px}.scroll-x{-webkit-overflow-scrolling:touch;overflow-x:auto}.text-muted{color:var(--text-muted)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-warning{color:var(--warning)}.text-primary{color:var(--primary)}.text-sm{font-size:13px}.text-xs{font-size:11px}.font-bold{font-weight:700}.flex{display:flex}.flex-1{flex:1}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-8{gap:8px}.gap-12{gap:12px}.mic-btn{cursor:pointer;background:var(--primary);color:#fff;border:none;border-radius:50%;justify-content:center;align-items:center;width:64px;height:64px;font-size:28px;transition:all .2s;display:flex;box-shadow:0 4px 15px #4f46e566}.mic-btn.recording{background:var(--danger);animation:1.5s ease-in-out infinite pulse-mic;box-shadow:0 4px 15px #ef444466}@keyframes pulse-mic{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}.band-score{color:var(--primary);text-align:center;font-size:48px;font-weight:800}.pin-inputs{justify-content:center;gap:12px;margin:20px 0;display:flex}.pin-input{text-align:center;border-radius:var(--radius-sm);background:var(--card2);border:2px solid var(--border);width:52px;height:60px;color:var(--text);font-size:24px;font-weight:700}.pin-input:focus{border-color:var(--primary)}