:root{--bg: #f4f6f8;--panel: #ffffff;--border: #e2e6ea;--text: #1f2933;--muted: #66707a;--primary: #1f7a5a;--primary-dark: #16624a;--danger: #c0392b;--accent: #f0f7f4;--shadow: 0 1px 3px rgba(0,0,0,.06);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:14px}a{color:var(--primary);text-decoration:none}h1{font-size:22px;margin:0 0 4px}h2{font-size:16px;margin:0 0 12px}.app{display:flex;min-height:100vh}.sidebar{width:220px;background:#12212b;color:#cfd8dd;padding:18px 0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.sidebar .brand{font-size:18px;font-weight:700;color:#fff;padding:0 20px 18px}.sidebar nav{display:flex;flex-direction:column;flex:1}.sidebar nav a{color:#cfd8dd;padding:10px 20px;font-weight:500;border-left:3px solid transparent}.sidebar nav a:hover{background:#ffffff0d}.sidebar nav a.active{background:#ffffff14;border-left-color:var(--primary);color:#fff}.sidebar .newsale{margin:4px 16px 14px}.sidebar .userbox{padding:12px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:13px}.main{flex:1;padding:24px 32px;max-width:1200px}.pagehead{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow);padding:18px;margin-bottom:18px}button,.btn{font:inherit;cursor:pointer;border:1px solid var(--border);background:#fff;color:var(--text);padding:8px 14px;border-radius:6px;font-weight:500}button:hover{background:#f7f9fa}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{color:var(--danger);border-color:#e6b8b3}.btn-sm{padding:5px 9px;font-size:13px}button:disabled{opacity:.5;cursor:not-allowed}label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}input,select,textarea{font:inherit;width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;background:#fff;color:var(--text)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary)}.field{margin-bottom:14px}.row{display:flex;gap:14px}.row>*{flex:1}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--border)}th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}tr:hover td{background:#fafbfc}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}.typeahead{position:relative}.typeahead .options{position:absolute;z-index:20;top:100%;left:0;right:0;background:#fff;border:1px solid var(--border);border-radius:6px;box-shadow:var(--shadow);max-height:240px;overflow-y:auto;margin-top:2px}.typeahead .options .opt{padding:8px 10px;cursor:pointer}.typeahead .options .opt:hover,.typeahead .options .opt.active{background:var(--accent)}.typeahead .options .create{color:var(--primary);font-weight:600}.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;font-weight:600}.badge.offen{background:#fff3e0;color:#b26a00}.badge.bezahlt{background:#e6f4ea;color:#1f7a3f}.badge.low{background:#fdecea;color:var(--danger)}.muted{color:var(--muted)}.error{background:#fdecea;color:var(--danger);padding:10px 12px;border-radius:6px;margin-bottom:14px}.right{text-align:right}.totals{margin-left:auto;width:280px}.totals .line{display:flex;justify-content:space-between;padding:4px 0}.totals .grand{font-weight:700;font-size:16px;border-top:1px solid var(--border);margin-top:6px;padding-top:8px}.center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{width:340px}.empty{text-align:center;color:var(--muted);padding:40px 0}.toolbar{display:flex;gap:10px;margin-bottom:14px;align-items:center}.toolbar input{max-width:320px}