:root{--color-bg: #f5f4f2;--color-surface: #ffffff;--color-border: #e4e1dc;--color-text: #22201d;--color-text-muted: #77726a;--color-primary: #2f4f3f;--color-primary-dark: #1f362a;--color-danger: #b23b3b;--color-warning: #b8862c;--color-success: #2f7a4f;--radius: 8px;--shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 1px 6px rgba(0, 0, 0, .04)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--color-bg);color:var(--color-text)}h1,h2{font-weight:600;margin:0 0 16px}h1{font-size:22px}h2{font-size:16px;margin-top:32px}.app-shell{display:flex;min-height:100vh}.sidebar{width:230px;background:var(--color-primary-dark);color:#f2f0ec;display:flex;flex-direction:column;padding:24px 16px;flex-shrink:0}.sidebar-brand{font-weight:700;font-size:16px}.sidebar-subtitle{font-size:12px;opacity:.7;margin-bottom:24px}.nav-link{display:block;padding:10px 12px;border-radius:var(--radius);color:#e7e4de;text-decoration:none;font-size:14px;margin-bottom:4px}.nav-link:hover{background:#ffffff14}.nav-link.active{background:var(--color-primary);color:#fff}.sidebar-footer{margin-top:auto;padding-top:16px;border-top:1px solid rgba(255,255,255,.15)}.user-info{font-size:13px;margin-bottom:8px;opacity:.85}.content{flex:1;padding:32px 40px;max-width:1200px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.header-actions{display:flex;gap:8px}.btn{border:none;border-radius:var(--radius);padding:9px 16px;font-size:13px;font-weight:500;cursor:pointer}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-outline{background:transparent;border:1px solid var(--color-border);color:var(--color-text)}.btn-ghost{background:transparent;color:var(--color-text-muted)}.btn-sm{padding:5px 10px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.kpi-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:24px}.kpi-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.kpi-value{font-size:22px;font-weight:700}.kpi-label{font-size:12px;color:var(--color-text-muted);margin-top:4px}.filter-bar{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap}.filter-bar input,.filter-bar select{padding:8px 10px;border-radius:var(--radius);border:1px solid var(--color-border);font-size:13px}.due-filter{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--color-text-muted)}.data-table{width:100%;border-collapse:collapse;background:var(--color-surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.data-table th,.data-table td{text-align:left;padding:10px 14px;font-size:13px;border-bottom:1px solid var(--color-border)}.data-table th{background:#faf9f7;color:var(--color-text-muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.02em}.data-table a{color:var(--color-primary)}.row-actions{display:flex;gap:6px}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:11px;font-weight:600}.badge-offen{background:#eee7d8;color:#8a6d1e}.badge-teilweise_bezahlt{background:#dbe8f5;color:#2c5a87}.badge-bezahlt{background:#dcefe1;color:var(--color-success)}.badge-in_mahnung{background:#f5dede;color:var(--color-danger)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-primary-dark)}.login-card{background:var(--color-surface);padding:40px;border-radius:12px;width:340px;display:flex;flex-direction:column;gap:12px;box-shadow:0 10px 40px #0000004d}.login-card h1{font-size:18px;margin-bottom:0}.login-subtitle{color:var(--color-text-muted);font-size:13px;margin:0 0 12px}.login-card label{display:flex;flex-direction:column;font-size:13px;gap:4px}.login-card input,.detail-grid input,textarea{padding:9px 10px;border-radius:var(--radius);border:1px solid var(--color-border);font-size:14px;font-family:inherit}.form-error{color:var(--color-danger);font-size:13px}.page-loading{padding:40px;color:var(--color-text-muted)}.detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px;margin-bottom:12px;font-size:14px}.muted{color:var(--color-text-muted);font-size:13px}.dropzone{border:2px dashed var(--color-border);border-radius:var(--radius);padding:48px;text-align:center;color:var(--color-text-muted);cursor:pointer;background:var(--color-surface);margin:16px 0}.dropzone.dragging{border-color:var(--color-primary);background:#eef3ef}.upload-result{background:#eef3ef;border:1px solid #cfe0d4;border-radius:var(--radius);padding:12px 16px;font-size:13px;margin-bottom:12px}.match-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:16px;margin-bottom:10px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.match-remittance{font-size:12px;color:var(--color-text-muted);margin-top:2px}.match-date{font-size:12px;color:var(--color-text-muted)}.match-suggestions{display:flex;flex-direction:column;gap:6px;align-items:flex-end}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--color-surface);border-radius:12px;padding:24px;width:560px;max-width:90vw;display:flex;flex-direction:column;gap:12px}.modal label{display:flex;flex-direction:column;gap:4px;font-size:13px}.modal-actions{display:flex;justify-content:flex-end;gap:8px}