.video-background{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;background-color:#275364}.video-background video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;opacity:.15}.back-link{position:fixed;top:1.5rem;left:1.5rem;z-index:200;display:flex;align-items:center;gap:8px;font-family:var(--font-sans);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#ffffffb3;text-decoration:none;padding:8px 14px;border-radius:8px;transition:color .2s ease,background .2s ease}.back-link:hover{color:#fcfaf5;background:#ffffff14}.back-arrow{font-size:16px}.diagnostic-main{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl) var(--container-padding)}.section-label{display:inline-block;font-family:var(--font-sans);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.15em;color:#fcfaf5;margin-bottom:var(--space-md)}.diagnostic-intro{max-width:640px;text-align:center;animation:fadeInUp .6s ease both}.diagnostic-title{font-family:var(--font-serif);font-size:clamp(32px,5vw,48px);color:#fcfaf5;line-height:1.2;margin-bottom:var(--space-md)}.diagnostic-subtitle{font-family:var(--font-serif);font-size:clamp(18px,2.5vw,22px);color:#b8ccc9;line-height:1.6;margin-bottom:var(--space-sm)}.diagnostic-description{font-family:var(--font-sans);font-size:16px;color:#b8ccc9b3;line-height:1.6;margin-bottom:var(--space-xl)}.skip-link-wrapper{margin-top:var(--space-md)}.skip-link{font-family:var(--font-sans);font-size:13px;color:#b8ccc959;text-decoration:none;transition:color .2s ease}.skip-link:hover{color:#b8ccc999}.btn-primary{display:inline-block;padding:16px 32px;font-size:16px;font-weight:500;font-family:var(--font-sans);color:#fcfaf5;background:#6398a7;border:none;border-radius:8px;cursor:pointer;text-decoration:none;transition:background-color .2s ease,color .2s ease}.btn-primary:hover:not(:disabled){background:#b7cbc8;color:#275364}.btn-primary:disabled{opacity:.3;cursor:default}.btn-secondary{display:inline-block;padding:16px 32px;font-size:16px;font-weight:500;font-family:var(--font-sans);color:#fcfaf5;background:transparent;border:1px solid rgba(255,255,255,.2);border-radius:8px;cursor:pointer;text-decoration:none;transition:background-color .2s ease,border-color .2s ease}.btn-secondary:hover{background:#ffffff14;border-color:#fff6}.diagnostic-questions{width:100%;max-width:640px;animation:fadeInUp .4s ease both}.progress-bar{width:100%;height:4px;background:#ffffff1a;border-radius:2px;margin-bottom:var(--space-2xl);overflow:hidden}.progress-fill{height:100%;background:#6398a7;border-radius:2px;transition:width .3s ease;width:0%}.question-card{background:#ffffff14;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:var(--space-2xl);border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.1);box-shadow:0 8px 32px #0000000d,inset 0 1px #ffffff1a}.question-count{font-family:var(--font-sans);font-size:13px;font-weight:700;color:#b8ccc980;text-transform:uppercase;letter-spacing:.1em;margin-bottom:var(--space-md)}.question-text{font-family:var(--font-serif);font-size:clamp(20px,3vw,24px);color:#fcfaf5;line-height:1.5;margin-bottom:var(--space-xl)}.scale-options{display:flex;gap:12px;margin-bottom:var(--space-md)}.scale-btn{flex:1;padding:14px 8px;font-family:var(--font-sans);font-size:18px;font-weight:600;color:#fcfaf5;background:#ffffff0f;border:1px solid rgba(255,255,255,.12);border-radius:8px;cursor:pointer;transition:background .2s ease,border-color .2s ease,transform .15s ease}.scale-btn:hover{background:#ffffff1f;border-color:#ffffff40;transform:translateY(-2px)}.scale-btn.selected{background:#6398a7;border-color:#6398a7}.scale-labels{display:flex;justify-content:space-between;font-family:var(--font-sans);font-size:12px;color:#b8ccc980}.question-nav{display:flex;justify-content:flex-end;margin-top:var(--space-xl)}.diagnostic-results{width:100%;max-width:720px;text-align:center;animation:fadeInUp .6s ease both}.results-title{font-family:var(--font-serif);font-size:clamp(28px,4vw,40px);color:#fcfaf5;margin-bottom:var(--space-sm);line-height:1.2}.results-subtitle{font-family:var(--font-serif);font-size:18px;color:#b8ccc9;margin-bottom:var(--space-2xl)}.results-grid{display:grid;gap:var(--space-lg);margin-bottom:var(--space-2xl)}.result-card{background:#ffffff0a;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:var(--space-lg);border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.1);text-align:left}.result-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-md)}.result-friction-name{font-family:var(--font-serif);font-size:20px;font-weight:700;color:#fcfaf5}.result-score{font-family:var(--font-sans);font-size:14px;font-weight:700;padding:4px 12px;border-radius:var(--radius-full);color:#fcfaf5}.result-bar-track{width:100%;height:8px;background:#ffffff14;border-radius:4px;margin-bottom:var(--space-md);overflow:hidden}.result-bar-fill{height:100%;border-radius:4px;transition:width .8s ease}.result-label{font-family:var(--font-sans);font-size:14px;font-weight:600;color:#b8ccc9;margin-bottom:var(--space-xs)}.result-description{font-family:var(--font-sans);font-size:15px;color:#b8ccc9b3;line-height:1.6}.results-actions{display:flex;gap:var(--space-md);justify-content:center;flex-wrap:wrap}@media(max-width:600px){.scale-options{gap:8px}.scale-btn{padding:12px 4px;font-size:16px}.question-card{padding:var(--space-lg)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}