header{background-color:var(--header-bg);color:var(--text-color);padding:0 var(--spacing-md);position:fixed;left:0;top:0;width:100%;z-index:1000;border-bottom:3px solid var(--primary);box-shadow:0 2px 12px rgba(0,0,0,.08);display:flex;flex-direction:column;justify-content:center;height:auto;padding-bottom:0}.header-content-wrapper{width:100%;max-width:1260px;margin:0 auto;padding:var(--spacing-sm) 0;display:flex;align-items:center}.header-main-row{display:flex;justify-content:space-between;align-items:center;width:100%}.header-left{display:flex;align-items:center}.title-version-row{display:flex;flex-direction:row;align-items:center;gap:12px;white-space:nowrap}header h1{font-size:0;color:transparent;margin:0;flex-shrink:0;background:url('../images/podabra.png') no-repeat left center;background-size:contain;width:76px;height:76px}.version{font-size:.68rem;color:var(--text-muted);font-weight:600;white-space:nowrap;display:inline-block;background-color:var(--gray-200);border-radius:10px;padding:2px 8px;letter-spacing:.04em;text-transform:uppercase;flex-shrink:0;align-self:center}.header-brand-text{display:flex;flex-direction:column;gap:3px;padding-left:14px;border-left:1px solid var(--border-color)}.header-app-name{font-size:1.45rem;font-weight:700;color:var(--text-color);line-height:1.1;letter-spacing:-.01em}.header-tagline{font-size:.78rem;color:#b0b7bf;font-weight:400;line-height:1.2}.header-description{display:none}.header-right{margin-left:auto;flex-shrink:0;display:flex;align-items:center;gap:var(--spacing-sm)}#feedback-btn,#help-btn,#theme-toggle-btn,#whats-new-btn{background:0 0;border:1px solid var(--gray-300);color:var(--gray-600);padding:6px 10px;border-radius:6px;cursor:pointer;font-size:.95rem;transition:all .18s}#feedback-btn:hover,#help-btn:hover,#theme-toggle-btn:hover,#whats-new-btn:hover{background-color:var(--primary);border-color:var(--primary);color:#fff}#return-button{padding:var(--spacing-xs) var(--spacing-sm);background-color:var(--gray-200);color:var(--gray-700);border:none;border-radius:var(--border-radius-sm);cursor:pointer;font-size:.75rem;white-space:nowrap;display:inline-flex;align-items:center;transition:var(--transition)}#return-button i{margin-right:var(--spacing-xs)}#return-button:hover{background-color:var(--gray-300)}.app-layout{display:flex;flex:1 0 auto;min-height:0}.sidebar-nav{position:fixed;left:0;top:110px;bottom:50px;width:84px;background-color:var(--header-bg);border-right:1px solid var(--border-color);display:flex;flex-direction:column;align-items:center;padding-top:var(--spacing-md);gap:var(--spacing-xs);z-index:100}.nav-btn{background:0 0;border:none;border-left:3px solid transparent;width:100%;padding:var(--spacing-sm) var(--spacing-xs);cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-muted);transition:all .18s;border-radius:0}.nav-btn i{font-size:2rem}.nav-label{font-size:.65rem;font-weight:500;white-space:nowrap;letter-spacing:.03em;text-transform:uppercase}.nav-btn:hover{color:var(--primary);background-color:rgba(232,75,0,.06)}.nav-btn.active{border-left-color:var(--primary);color:var(--primary);background-color:rgba(232,75,0,.08)}.page-content{margin-left:84px;flex:1 0 auto;display:flex;flex-direction:column;width:calc(100% - 84px)}.page-pane{display:none;flex:1 0 auto;width:100%}.page-pane.active{display:flex;flex-direction:column;flex:1 0 auto}.output-page-container{padding:var(--spacing-md);max-width:900px;margin:var(--spacing-md) auto;width:100%}.output-page-container section{background-color:var(--card-bg);padding:var(--spacing-md);border-radius:var(--border-radius);box-shadow:var(--box-shadow);border:1px solid var(--border-color);overflow:hidden}footer{position:fixed;bottom:0;left:0;width:100%;z-index:990;height:50px;background-color:var(--footer-bg);color:var(--text-color);text-align:center;font-size:.9rem;display:flex;align-items:center;justify-content:center;border-top:1px solid var(--border-color);box-shadow:0 -1px 3px rgba(0,0,0,.05)}footer p{margin:0}.link-button,footer a{color:var(--primary);text-decoration:none}.link-button:hover,footer a:hover{text-decoration:underline;color:var(--primary-dark)}.link-button{background:0 0;border:none;cursor:pointer;font-size:inherit;padding:0;margin:0 5px;font-family:inherit}#main-container{flex:1 0 auto;display:flex;flex-direction:row;padding:var(--spacing-md);max-width:1400px;margin:var(--spacing-md) auto var(--spacing-md) auto;width:100%;gap:var(--spacing-lg);align-items:flex-start}.main-content-area{flex-grow:1;display:flex;flex-direction:column;min-width:0;gap:var(--spacing-md)}.sliders-right{display:flex;flex-direction:column;gap:var(--spacing-md);padding:0;background-color:transparent;border:none;box-shadow:none;width:auto;min-width:350px;max-width:440px;flex-shrink:0;align-items:stretch;position:sticky;top:112px;align-self:flex-start}