:root{--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;--font-family-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--font-scale: 1;--font-size-xs: calc(.75rem * var(--font-scale));--font-size-sm: calc(.875rem * var(--font-scale));--font-size-base: calc(1rem * var(--font-scale));--font-size-lg: calc(1.125rem * var(--font-scale));--font-size-xl: calc(1.25rem * var(--font-scale));--font-size-2xl: calc(1.5rem * var(--font-scale));--font-size-3xl: calc(1.875rem * var(--font-scale));--bg-app: #f4f5f7;--bg-surface: #ffffff;--bg-surface-hover: #f0f2f5;--bg-surface-active: #e4e7eb;--text-primary: #111827;--text-secondary: #374151;--text-muted: #4b5563;--text-inverse: #ffffff;--border-subtle: #e5e7eb;--border-default: #d1d5db;--border-focus: #1d4ed8;--color-primary: #1d4ed8;--color-primary-hover: #1e40af;--color-primary-subtle: #eff6ff;--color-success: #15803d;--color-success-bg: #dcfce7;--color-warning: #b45309;--color-warning-bg: #fef3c7;--color-danger: #b91c1c;--color-danger-bg: #fee2e2;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--sidebar-width: 260px;--bottom-nav-height: 64px;--header-height: 60px}html[data-font-size=large]{--font-scale: 1.15}html[data-font-size=xlarge]{--font-scale: 1.3}html[data-theme=dark]{--bg-app: #0f172a;--bg-surface: #1e293b;--bg-surface-hover: #334155;--bg-surface-active: #475569;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--text-inverse: #0f172a;--border-subtle: #334155;--border-default: #475569;--border-focus: #60a5fa;--color-primary: #3b82f6;--color-primary-hover: #60a5fa;--color-primary-subtle: #1e3a5f;--color-success: #22c55e;--color-success-bg: #14532d;--color-warning: #f59e0b;--color-warning-bg: #78350f;--color-danger: #ef4444;--color-danger-bg: #7f1d1d;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5)}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:var(--font-family);font-size:16px;background-color:var(--bg-app);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}:focus-visible{outline:3px solid var(--border-focus);outline-offset:2px}.skip-link{position:absolute;top:-100px;left:16px;background:var(--color-primary);color:var(--text-inverse);padding:10px 16px;border-radius:var(--radius-sm);font-weight:600;z-index:1000;text-decoration:none;transition:top .2s ease-in-out}.skip-link:focus-visible{top:16px}:lang(de){-webkit-hyphens:auto;hyphens:auto;letter-spacing:normal}.app-container{display:flex;min-height:100vh;background-color:var(--bg-app)}.desktop-sidebar{display:none;width:var(--sidebar-width);background-color:var(--bg-surface);border-right:1px solid var(--border-subtle);flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:40}@media(min-width:768px){.desktop-sidebar{display:flex}.app-main-layout{margin-left:var(--sidebar-width)}}.app-main-layout{display:flex;flex-direction:column;flex:1;min-width:0;padding-bottom:calc(var(--bottom-nav-height) + 16px)}@media(min-width:768px){.app-main-layout{padding-bottom:24px}}.app-header{height:var(--header-height);background-color:var(--bg-surface);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between;padding:0 16px;position:sticky;top:0;z-index:30}.mobile-bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:var(--bottom-nav-height);background-color:var(--bg-surface);border-top:1px solid var(--border-subtle);z-index:40;padding-bottom:env(safe-area-inset-bottom)}@media(min-width:768px){.mobile-bottom-nav{display:none}}.nav-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;background:transparent;border:none;color:var(--text-secondary);font-family:inherit;font-size:var(--font-size-xs);cursor:pointer;padding:8px 12px;min-height:44px;min-width:44px;transition:all .15s ease-in-out;border-radius:var(--radius-sm);text-decoration:none}.nav-btn.active{color:var(--color-primary);font-weight:600}.desktop-sidebar .nav-btn{flex-direction:row;justify-content:flex-start;gap:12px;font-size:var(--font-size-base);padding:12px 16px;border-radius:var(--radius-md);margin:4px 12px}.desktop-sidebar .nav-btn.active{background-color:var(--color-primary-subtle);color:var(--color-primary)}.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:600;line-height:1}.badge-online{background-color:var(--color-success-bg);color:var(--color-success)}.badge-offline{background-color:var(--color-danger-bg);color:var(--color-danger)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;min-height:44px;min-width:44px;font-family:inherit;font-size:var(--font-size-base);font-weight:500;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all .15s ease;background-color:var(--color-primary);color:var(--text-inverse);text-decoration:none}.btn:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background-color:var(--bg-surface);color:var(--text-primary);border-color:var(--border-default)}.btn-secondary:hover:not(:disabled){background-color:var(--bg-surface-hover)}.btn-danger{background-color:var(--color-danger);color:var(--text-inverse)}.btn-danger:hover:not(:disabled){background-color:#991b1b}.card{background-color:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);margin-bottom:16px}