:root,[data-theme=dark]{--color-bg: #0D1B2A;--color-sidebar: #0A1628;--color-card: #152333;--color-card-hover: #1E3448;--color-border: rgba(255, 255, 255, .08);--color-primary: #3B82F6;--color-primary-hover: #2563EB;--color-primary-light: #1E3A5F;--color-text: #FFFFFF;--color-text-secondary: #94A3B8;--color-text-muted: #64748B;--color-input-bg: #0D1B2A;--color-input-border: rgba(255, 255, 255, .12);--color-input-focus: #3B82F6;--color-table-stripe: rgba(255, 255, 255, .02);--color-success: #10B981;--color-warning: #F59E0B;--color-danger: #EF4444;--color-neutral: #64748B}[data-theme=light]{--color-bg: #F1F5F9;--color-sidebar: #FFFFFF;--color-card: #FFFFFF;--color-card-hover: #F8FAFC;--color-border: #E2E8F0;--color-primary: #3B82F6;--color-primary-hover: #2563EB;--color-primary-light: #DBEAFE;--color-text: #0D1B2A;--color-text-secondary: #64748B;--color-text-muted: #94A3B8;--color-input-bg: #FFFFFF;--color-input-border: #E2E8F0;--color-input-focus: #3B82F6;--color-table-stripe: rgba(0, 0, 0, .02);--color-success: #059669;--color-warning: #D97706;--color-danger: #DC2626;--color-neutral: #64748B}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;color:var(--color-text);background:var(--color-bg);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;font-weight:400;line-height:1.5;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden;-webkit-user-select:none;user-select:none}h1,h2,h3,h4{font-weight:600;line-height:1.3}h1{font-size:24px}h2{font-size:20px}h3{font-size:16px}a{color:var(--color-primary);text-decoration:none}ul{list-style:none}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:220px;min-width:220px;background:var(--color-sidebar);border-right:1px solid var(--color-border);display:flex;flex-direction:column;padding:0;-webkit-app-region:drag}.sidebar-logo{padding:20px 20px 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var(--color-border);-webkit-app-region:no-drag}.theme-toggle{width:100%;display:flex;align-items:center;gap:10px;padding:8px 12px;border:none;border-radius:8px;background:var(--color-card);color:var(--color-text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease;font-family:inherit}.theme-toggle:hover{color:var(--color-text);background:var(--color-card-hover)}.main-content{flex:1;overflow-y:auto;padding:32px;-webkit-app-region:drag}.main-content>*{-webkit-app-region:no-drag}.page-content{width:100%}.page-header{margin-bottom:24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.page-header h1{margin-bottom:4px}.page-header p{color:var(--color-text-secondary);font-size:14px}.page-subtitle{color:var(--color-text-secondary);font-size:13px}.card{background:var(--color-card);border:1px solid var(--color-border);border-radius:12px;padding:24px;margin-bottom:16px}.section-title{font-size:16px;font-weight:600;margin:0 0 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var(--color-border);padding-top:8px;margin-top:4px}.kleinunternehmer-note{font-size:12px;color:var(--color-text-muted);font-style:italic;margin-top:8px;text-align:right}.invoice-actions{display:flex;gap:12px;justify-content:flex-end;padding-top:16px;border-top:1px solid var(--color-border)}.customer-select-wrapper{position:relative}.customer-select-search{width:100%;padding:8px 12px;background:var(--color-input-bg);border:1px solid var(--color-border);border-radius:6px;color:var(--color-text);font-size:14px}.customer-select-search:focus{outline:none;border-color:var(--color-primary)}.customer-dropdown{position:absolute;top:100%;left:0;right:0;background:var(--color-card);border:1px solid var(--color-border);border-radius:6px;margin-top:4px;max-height:200px;overflow-y:auto;z-index:100;box-shadow:0 4px 12px #0003}.customer-dropdown-item{padding:8px 12px;cursor:pointer;font-size:14px;color:var(--color-text);border-bottom:1px solid 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ease}.chart-bar-label{font-size:10px;color:var(--color-text-muted);margin-top:6px;text-align:center}.chart-bar-value{font-size:9px;color:var(--color-text-muted);margin-bottom:4px}.recent-section h3{font-size:15px;font-weight:600;color:var(--color-text);margin-bottom:12px}.year-selector{display:flex;gap:2px;background:var(--color-card);border-radius:8px;padding:2px;border:1px solid var(--color-border)}.year-btn{padding:5px 12px;border:none;border-radius:6px;background:transparent;color:var(--color-text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease}.year-btn:hover{background:var(--color-hover)}.year-btn.active{background:var(--color-primary);color:#fff}.kpi-panel{background:var(--color-card);border:1px solid var(--color-border);border-radius:12px;padding:20px;margin-bottom:20px}.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:16px}.kpi-card{background:var(--color-bg);border-radius:8px;padding:14px;border:1px solid var(--color-border)}.kpi-label{font-size:11px;font-weight:500;color:var(--color-text-muted);margin-bottom:6px}.kpi-value{font-size:18px;font-weight:700;color:var(--color-text);margin-bottom:2px}.kpi-value.text-success{color:var(--color-success)}.kpi-value.text-danger{color:var(--color-danger)}.kpi-sub{font-size:11px;color:var(--color-text-muted)}.kpi-top-kunden h4{font-size:13px;font-weight:600;color:var(--color-text);margin-bottom:8px}.kpi-kunden-list{display:flex;flex-direction:column;gap:6px}.kpi-kunde-row{display:flex;align-items:center;gap:10px;padding:6px 10px;border-radius:6px;background:var(--color-bg)}.kpi-kunde-row:nth-child(odd){background:var(--color-card)}.kpi-kunde-rank{font-size:11px;font-weight:600;color:var(--color-primary);min-width:24px}.kpi-kunde-name{flex:1;font-size:13px;color:var(--color-text)}.kpi-kunde-umsatz{font-size:13px;font-weight:600;color:var(--color-text)}.sub-tabs{display:flex;gap:4px;margin-bottom:20px;border-bottom:1px solid 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var(--color-border);border-radius:12px;padding:24px;width:100%;max-width:400px;box-shadow:0 16px 48px #0000004d}.modal-content h3{margin:0 0 16px;font-size:16px}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-bg)}.login-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:12px;padding:2.5rem;width:100%;max-width:400px}.login-card h1{font-size:1.5rem;margin-bottom:.25rem;color:var(--color-text)}.login-subtitle{color:var(--color-text-secondary);margin-bottom:1.5rem}.btn-full{width:100%;margin-top:1rem}.loading{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--color-text-secondary)}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.filter-bar{display:flex;gap:.75rem;margin-bottom:1rem}.form-actions{display:flex;gap:.5rem;justify-content:flex-end;margin-top:1rem}.tab-bar{display:flex;gap:0;margin-bottom:1.5rem;border-bottom:1px solid var(--color-border)}.tab{padding:.5rem 1rem;background:none;border:none;color:var(--color-text-secondary);cursor:pointer;border-bottom:2px solid transparent;font-family:inherit;font-size:14px;font-weight:500;transition:all .15s ease}.tab:hover{color:var(--color-text)}.tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.toast{position:fixed;bottom:1.5rem;right:1.5rem;background:var(--color-success);color:#fff;padding:.75rem 1.25rem;border-radius:6px;z-index:999}.sidebar-footer{padding:1rem;border-top:1px solid var(--color-border);display:flex;flex-direction:column;gap:.5rem}.sidebar-user{color:var(--color-text-secondary);font-size:.85rem}.chart-bars{display:flex;align-items:flex-end;gap:6px;height:140px;padding-top:1rem}.chart-bar-wrapper{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%}.chart-bar{width:100%;max-width:48px;background:var(--color-primary);border-radius:4px 4px 0 0;min-height:4px;transition:height .3s ease}.chart-bar:hover{opacity:.8}.chart-label{font-size:.7rem;color:var(--color-text-secondary);margin-top:6px}.chart-bar-value{font-size:.65rem;color:var(--color-text-muted);margin-bottom:4px;white-space:nowrap}.invoice-summary{margin-top:1rem;text-align:right;font-size:1.1rem}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--color-card);border-radius:12px;padding:2rem;width:100%;max-width:500px;max-height:90vh;overflow-y:auto}.nav-item{display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem;color:var(--color-text-secondary);text-decoration:none;border-radius:6px;transition:background .15s}.nav-item:hover{background:var(--color-card-hover)}.nav-item.active{background:var(--color-accent);color:#fff}