:root{--font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;--color-primary: #218821;--color-primary-dark: #196d19;--color-secondary: #5c636a;--color-secondary-dark: #494f54;--color-text: #212529;--color-text-muted: #6c757d;--color-surface: #ffffff;--color-background: #f4f7f6;--color-border: #dee2e6;--color-focus-ring: rgba(33, 136, 33, .25);--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 20px;--spacing-xl: 30px;--radius: 12px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--transition: .2s cubic-bezier(.25, .46, .45, .94)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text);min-height:100vh;display:grid;place-items:center;padding:var(--spacing-md);-webkit-font-smoothing:antialiased}.container{background:var(--color-surface);border-radius:var(--radius);padding:var(--spacing-xl);box-shadow:var(--shadow);width:100%;max-width:800px;border:1px solid var(--color-border)}.back-btn{margin-right:20px;padding:15px 30px;background:var(--color-background);color:var(--color-primary);border:0;cursor:pointer;font-weight:500;font-size:16px;border-radius:var(--radius);text-wrap:nowrap}.screen.active{animation:fadeIn var(--transition) forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}h1{color:var(--color-text);font-size:clamp(1.5rem,5vw,2rem);text-align:center;font-weight:700}h2{font-size:clamp(1.1rem,4vw,1.25rem);margin-bottom:var(--spacing-lg);font-weight:500;text-align:left;line-height:1.5}.header-with-back{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-lg)}.btn{display:flex;align-items:center;justify-content:center;width:100%;padding:14px var(--spacing-md);border:none;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:transform var(--transition),box-shadow var(--transition),background-color var(--transition);box-shadow:0 1px 2px #0000000d;text-decoration:none}.btn:hover{transform:translateY(-3px);box-shadow:0 4px 8px #0000001a}.btn:active{transform:translateY(-1px);box-shadow:0 2px 4px #0000001a}.btn:focus-visible{outline:none;box-shadow:0 0 0 4px var(--color-focus-ring)}.btn-primary{background-color:var(--color-primary);color:var(--color-surface)}.btn-primary:hover{background-color:var(--color-primary-dark)}.btn-secondary{background-color:var(--color-secondary);color:var(--color-surface)}.btn-secondary:hover{background-color:var(--color-secondary-dark)}.input-group{display:flex;flex-direction:column;gap:var(--spacing-md);margin-bottom:var(--spacing-lg)}input[type=text]{width:100%;padding:14px var(--spacing-md);border:1px solid var(--color-border);border-radius:var(--radius);font-size:1rem;font-family:inherit;transition:border-color var(--transition),box-shadow var(--transition)}input[type=text]:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 4px var(--color-focus-ring)}.language-buttons{display:flex;flex-direction:column;gap:var(--spacing-md)}.lang-btn{padding:var(--spacing-md);gap:var(--spacing-md);background-color:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.lang-btn:nth-child(1){margin-top:30px}.lang-btn .flag{font-size:1.75rem;line-height:1;display:inline-block}.lang-btn span{font-weight:500}.lang-btn:hover{border-color:var(--color-primary);color:var(--color-primary);background-color:#2188210d}.form-actions{display:flex;flex-direction:column;gap:var(--spacing-md);margin-top:var(--spacing-lg)}@media(min-width:640px){.form-actions{flex-direction:row}}.answers{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.answer-btn{justify-content:flex-start;text-align:left;font-weight:500;background:var(--color-surface);color:var(--color-text);border:2px solid var(--color-border);padding:10px 20px;border-radius:10px;font-size:15px}.answer-btn:hover{border-color:var(--color-primary);background-color:#2188210d}.progress{margin-top:var(--spacing-lg)}.progress-bar{height:10px;background:#e9ecef;border-radius:99px;margin-bottom:var(--spacing-sm);overflow:hidden}.progress-fill{height:100%;background-color:var(--color-primary);transition:width .3s ease}#progress-text{color:var(--color-text-muted);font-size:.8rem;text-align:right;display:block}.result-buttons{display:flex;flex-direction:column;gap:var(--spacing-md);margin-top:var(--spacing-lg)}#score-text{font-size:clamp(1.4rem,5vw,1.75rem);color:var(--color-primary);background:#21882112;padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius);border:1px solid rgba(33,136,33,.2);text-align:center;font-weight:600;margin-bottom:var(--spacing-lg)}.loader{width:50px;height:50px;border:5px solid #e9ecef;border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite;margin:var(--spacing-xl) auto}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:640px){.container{padding:var(--spacing-lg)}h1{font-size:1.1rem}}@media(max-width:330px){.back-btn{padding:15px}}