:root{font-family:Inter,Noto Sans Ethiopic,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color-scheme:light dark;--bg-page: #0b0f17;--primary: #10b981;--primary-hover: #059669;--primary-bg: rgba(16, 185, 129, .12);--primary-border: rgba(16, 185, 129, .28);--danger: #ef4444;--danger-hover: #dc2626;--danger-bg: rgba(239, 68, 68, .1);--card-bg: rgba(17, 24, 39, .78);--surface-subtle: rgba(255, 255, 255, .04);--border-color: rgba(255, 255, 255, .1);--text-main: #f9fafb;--text-muted: #9ca3af;--shadow-card: 0 12px 32px -4px rgba(0, 0, 0, .35)}@media (prefers-color-scheme: light){:root{--bg-page: #f8fafc;--card-bg: rgba(255, 255, 255, .92);--surface-subtle: #f1f5f9;--border-color: #e2e8f0;--text-main: #0f172a;--text-muted: #64748b;--shadow-card: 0 10px 28px -6px rgba(15, 23, 42, .08)}}*{box-sizing:border-box}body{margin:0;padding:0;background-color:var(--bg-page);background-image:radial-gradient(circle at 50% -10%,rgba(16,185,129,.15),transparent 55%);background-attachment:fixed;color:var(--text-main);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}.app-shell{max-width:620px;margin:0 auto;padding:16px 18px 36px;min-height:100vh;display:flex;flex-direction:column}main{flex:1}header{padding:10px 0 18px;margin-bottom:6px}nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;background:var(--card-bg);border:1px solid var(--border-color);padding:8px 12px;border-radius:16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 2px 10px #0000000f}nav .brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.05rem;color:var(--text-main);margin-right:auto;padding:6px 8px;text-decoration:none}nav .brand-badge{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#10b981,#059669);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:.95rem;box-shadow:0 2px 8px #10b98159}nav a.nav-link{text-decoration:none;color:var(--text-muted);font-size:.9rem;font-weight:600;padding:7px 12px;border-radius:10px;transition:all .18s ease}nav a.nav-link:hover{color:var(--text-main);background:var(--surface-subtle)}nav a.nav-link.active{color:var(--primary);background:var(--primary-bg)}.lang-btn{width:auto!important;padding:6px 12px!important;font-size:.82rem!important;font-weight:600;border-radius:10px!important;border:1px solid var(--border-color)!important;background:var(--surface-subtle);color:var(--text-main);cursor:pointer;margin:0 0 0 4px!important}.lang-btn:hover{border-color:var(--primary)!important}.card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:22px;padding:28px 24px;margin:12px 0;box-shadow:var(--shadow-card);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}@media (max-width: 480px){.card{padding:22px 18px;border-radius:18px}}.badge-pill{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:600;color:var(--primary);background:var(--primary-bg);border:1px solid var(--primary-border);padding:4px 12px;border-radius:999px;margin-bottom:12px}.progress-container{margin-bottom:20px}.progress-header{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;font-weight:600;color:var(--text-muted);margin-bottom:10px}.step-dots{display:flex;gap:6px}.step-dot{width:24px;height:6px;border-radius:99px;background:var(--border-color);transition:all .3s ease}.step-dot.done{background:var(--primary)}.step-dot.current{background:var(--primary);box-shadow:0 0 8px #10b98199}.sentence-container{min-height:130px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 18px;margin:12px 0 22px;background:var(--surface-subtle);border:1px solid var(--border-color);border-radius:16px;position:relative}.sentence-prompt-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:8px;font-weight:600}.sentence{font-size:1.55rem;font-weight:600;text-align:center;line-height:1.65;letter-spacing:.2px;color:var(--text-main)}@media (max-width: 480px){.sentence{font-size:1.35rem}}.recording-status-box{display:flex;flex-direction:column;align-items:center;gap:10px;padding:14px;margin-bottom:16px;border-radius:14px;background:var(--danger-bg);border:1px solid rgba(239,68,68,.25)}.recording-indicator{display:flex;align-items:center;justify-content:center;gap:10px;font-weight:600;font-size:.95rem;color:var(--danger)}.pulse-dot{width:10px;height:10px;background-color:var(--danger);border-radius:50%;box-shadow:0 0 #ef4444b3;animation:pulse 1.4s infinite}@keyframes pulse{0%{transform:scale(.95);box-shadow:0 0 #ef4444b3}70%{transform:scale(1.1);box-shadow:0 0 0 9px #ef444400}to{transform:scale(.95);box-shadow:0 0 #ef444400}}.waveform-bars{display:flex;align-items:center;justify-content:center;gap:4px;height:28px}.waveform-bar{width:4px;border-radius:99px;background:var(--danger);transition:height .08s ease}input[type=email],input[type=text],select{width:100%;padding:14px 16px;font-size:1rem;font-family:inherit;border-radius:12px;border:1px solid var(--border-color);background:var(--surface-subtle);color:var(--text-main);outline:none;transition:border-color .2s ease,box-shadow .2s ease}input[type=email]:focus,input[type=text]:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #10b9812e}audio{width:100%;margin:8px 0 18px;border-radius:12px}button{font-family:inherit;font-size:1.02rem;font-weight:600;padding:14px 20px;margin:8px 0;border-radius:14px;border:1px solid var(--border-color);background:var(--surface-subtle);color:var(--text-main);width:100%;cursor:pointer;transition:all .18s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;gap:8px}button:hover:not(:disabled){border-color:var(--primary);transform:translateY(-1px)}button:active:not(:disabled){transform:translateY(0)}button.primary{background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;box-shadow:0 4px 14px #10b9814d}button.primary:hover:not(:disabled){background:linear-gradient(135deg,#059669,#047857);box-shadow:0 6px 20px #10b9816b}button.danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none;box-shadow:0 4px 14px #ef44444d}button.danger:hover:not(:disabled){background:var(--danger-hover)}button.ghost{background:transparent;border:none;color:var(--text-muted);font-size:.92rem;font-weight:500;padding:10px}button.ghost:hover{color:var(--text-main);background:var(--surface-subtle)}button:disabled{opacity:.45;cursor:not-allowed;transform:none!important}.kbd-hints{display:flex;justify-content:center;gap:14px;margin-top:14px;font-size:.78rem;color:var(--text-muted)}@media (max-width: 640px){.kbd-hints{display:none}}kbd{background:var(--surface-subtle);border:1px solid var(--border-color);border-radius:5px;padding:1px 6px;font-size:.74rem;font-family:inherit;font-weight:600}.message{text-align:center;font-size:.92rem;font-weight:500;margin-top:14px;padding:10px 14px;border-radius:10px}.message.error,p.error{color:var(--danger);background:var(--danger-bg);border:1px solid rgba(239,68,68,.25);border-radius:10px;padding:10px 14px}.message.success{color:var(--primary);background:var(--primary-bg)}.celebration{text-align:center;padding:32px 20px}.celebration .emoji{font-size:3.5rem;margin-bottom:12px}.celebration h2{margin:0 0 10px;font-size:1.5rem}.celebration p{color:var(--text-muted);margin-bottom:24px;line-height:1.5}.app-footer{margin-top:32px;padding-top:16px;border-top:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:.8rem;color:var(--text-muted)}.app-footer a{color:var(--text-muted);text-decoration:none}.app-footer a:hover{color:var(--primary)}