:root {
    --nav-w: 175px;
    --accent: #65731c;
    --accent-dark: #4d5713;
    --accent-bg: #ecefd0;
    --nav-bg: #efefef;
    --nav-border: #cccccc;
    --topbar-bg: #e0e0e0;
    --topbar-border: #b0b0b0;
    --body-bg: #ffffff;
    --text: #1a1a1a;
    --text-muted: #555555;
    --row-hover: #f5f8ff;
    --border: #d0d0d0;
    --danger: #c62828;
    --danger-bg: #ffebee;
    --success: #1b5e20;
    --success-bg: #c8e6c9;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
    font-size: 13px;
    color: var(--text);
    background: var(--body-bg);
    line-height: 1.45;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, Consolas, "Courier New", monospace; }
pre { background: #f5f5f0; padding: 10px; border-radius: 3px; overflow-x: auto; font-size: 12px; }

/* Sidebar */
nav.sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--nav-w);
    background: var(--nav-bg);
    border-right: 1px solid var(--nav-border);
    display: flex; flex-direction: column;
    z-index: 100;
}
.sidebar-logo {
    height: 44px; display: flex; align-items: center; gap: 8px;
    padding: 0 14px; border-bottom: 1px solid var(--nav-border);
    font-weight: 700; color: var(--accent); font-size: 14px;
}
.sidebar-nav, .sidebar-bottom {
    list-style: none; margin: 0; padding: 6px 0; display: flex; flex-direction: column;
}
.sidebar-nav { flex: 1 1 auto; }
.sidebar-nav li, .sidebar-bottom li { margin: 0; }
.sidebar-nav a, .sidebar-bottom a {
    display: flex; align-items: center; gap: 8px;
    padding: 7px 14px; color: var(--text); border-left: 3px solid transparent;
    font-size: 13px; font-weight: 500;
}
.sidebar-nav a:hover, .sidebar-bottom a:hover {
    background: #e8e8e8; text-decoration: none;
}
.sidebar-nav a.active, .sidebar-bottom a.active {
    border-left-color: var(--accent);
    background: var(--accent-bg);
    color: var(--accent);
}
.sidebar-bottom { border-top: 1px solid var(--nav-border); padding-top: 6px; }

/* Topbar */
header.topbar {
    height: 44px;
    background: var(--topbar-bg);
    border-bottom: 1px solid var(--topbar-border);
    display: flex; align-items: center; gap: 12px;
    padding: 0 16px;
    position: sticky; top: 0; z-index: 50;
}
header.topbar h1 { margin: 0; font-size: 14px; font-weight: 700; }
header.topbar .spacer { flex: 1 1 auto; }
header.topbar .user-info {
    font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 12px;
}
.topbar-balance { font-weight: 600; color: var(--text); }
.topbar-balance.neg { color: var(--danger); }
.topbar-balance.pos { color: var(--success); }

.btn-refresh {
    background: transparent; border: 1px solid #b0b0b0; border-radius: 3px;
    color: var(--text-muted); padding: 3px 6px; cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
}
.btn-refresh:hover { background: #fff; color: var(--accent); border-color: var(--accent); }
.btn-refresh:active { transform: scale(.95); }

/* Main Content */
main.content {
    margin-left: var(--nav-w);
    min-height: 100vh;
}
.page-body {
    padding: 16px;
}

/* Hamburger (mobile) */
.hamburger { display: none; background: none; border: 0; padding: 6px; cursor: pointer; color: var(--text); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 5px 14px; border-radius: 3px; border: 1px solid;
    font-size: 13px; cursor: pointer; font-family: inherit;
    background: #fff; color: var(--text); border-color: #bbb;
}
.btn:hover { background: #f5f5f5; text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
.btn-edit { background: #f7f8eb; color: var(--accent); border-color: #a8b443; }
.btn-edit:hover { background: #ecefd0; }
.btn-del  { background: var(--danger-bg); color: var(--danger); border-color: #ef9a9a; }
.btn-del:hover { background: #ffd6d9; }
.btn-sm   { padding: 3px 8px; font-size: 12px; }
.btn-lg   { padding: 9px 20px; font-size: 14px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Forms */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; max-width: 700px; }
.form-group { display: flex; flex-direction: column; gap: 3px; }
.form-group-full { grid-column: 1 / -1; }
.form-group label { font-size: 11px; color: var(--text-muted); font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
    border: 1px solid #bbb; border-radius: 3px; padding: 5px 7px;
    font-size: 13px; background: #fff; font-family: inherit;
}
.form-group textarea { min-height: 60px; resize: vertical; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--accent);
}

/* Tabellen */
table.gl {
    width: 100%; border-collapse: collapse; font-size: 13px;
}
table.gl th {
    background: #e8e8e8; padding: 6px 10px; text-align: left;
    font-weight: 600; border: 1px solid #ccc;
}
table.gl td { padding: 5px 10px; border: 1px solid #ddd; vertical-align: middle; }
table.gl tr:hover td { background: var(--row-hover); cursor: pointer; }
table.gl tr.no-hover:hover td { background: inherit; cursor: default; }
table.gl td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Toolbar */
.toolbar {
    display: flex; gap: 8px; align-items: center;
    margin-bottom: 12px; flex-wrap: wrap;
}
.toolbar .spacer { flex: 1 1 auto; }
.search-box {
    border: 1px solid #bbb; border-radius: 3px; padding: 5px 9px;
    font-size: 13px; min-width: 240px; font-family: inherit;
}
.search-box:focus { outline: none; border-color: var(--accent); }

/* Cards */
.card {
    background: #fafafa; border: 1px solid var(--border);
    border-radius: 3px; padding: 16px; margin-bottom: 12px;
}
.card h2 {
    font-size: 13px; font-weight: 600; margin: 0 0 10px;
    color: var(--text-muted); text-transform: uppercase; letter-spacing: .4px;
}

/* Tabs */
.tabs {
    display: flex; background: #f8f9fb;
    border-bottom: 2px solid var(--accent); margin-bottom: 16px;
}
.tab-btn {
    padding: 9px 18px; border: none; border-right: 1px solid #e2e6ec;
    background: none; cursor: pointer; font-size: 12px; font-weight: 600;
    color: #607d8b; transition: background .12s, color .12s; font-family: inherit;
}
.tab-btn.active {
    background: #fff; color: var(--accent);
    border-bottom: 2px solid #fff; margin-bottom: -2px; position: relative; z-index: 1;
}
.tab-btn:hover:not(.active) { background: #eef1f4; color: #37474f; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Modal */
.modal-bg {
    display: none; position: fixed; inset: 0; background: rgba(0,0,0,.35);
    z-index: 200; align-items: center; justify-content: center;
}
.modal-bg.open { display: flex; }
.modal {
    background: #fff; border: 1px solid #bbb; border-radius: 4px;
    padding: 22px; width: 560px; max-width: 97vw; max-height: 90vh; overflow-y: auto;
}
.modal h3 { font-size: 14px; font-weight: 600; margin: 0 0 16px; }

/* Badges */
.badge {
    display: inline-block; padding: 1px 7px; border-radius: 3px;
    font-size: 11px; font-weight: 500;
}
.badge-aktiv  { background: var(--success-bg); color: var(--success); }
.badge-inaktiv{ background: #ffcdd2; color: #b71c1c; }
.badge-pending{ background: #fff3cd; color: #856404; }
.badge-private{ background: var(--accent-bg); color: var(--accent); }
.badge-cat    { background: #e3e3e3; color: #444; }

/* Messages */
.msg-ok  { background: var(--success-bg); color: var(--success); padding: 8px 12px; border-radius: 3px; margin-bottom: 12px; }
.msg-err { background: var(--danger-bg); color: var(--danger); padding: 8px 12px; border-radius: 3px; margin-bottom: 12px; }

/* Setup */
.setup-body { background: #f0f0e8; min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.setup-card { background: #fff; border: 1px solid var(--border); border-radius: 4px; padding: 30px 36px; max-width: 560px; width: 100%; box-shadow: 0 2px 8px rgba(0,0,0,.05); }
.setup-card h1 { font-size: 18px; margin: 0 0 6px; color: var(--accent); }
.setup-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; color: var(--accent); font-weight: 700; font-size: 16px; }
.setup-intro { color: var(--text-muted); margin-bottom: 18px; }
.setup-form { margin: 0; }
.setup-actions { margin-top: 18px; display: flex; gap: 8px; flex-wrap: wrap; }
.setup-hint { margin-top: 22px; padding: 12px; background: #f8f8f0; border: 1px solid #e3e3d0; border-radius: 3px; font-size: 12px; color: var(--text-muted); }
.setup-hint pre { background: #fff; margin-top: 6px; }

/* Login */
.login-body { background: #f0f0e8; min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card { background: #fff; border: 1px solid var(--border); border-radius: 4px; padding: 30px 36px; max-width: 380px; width: 100%; box-shadow: 0 2px 8px rgba(0,0,0,.05); }
.login-card h1 { font-size: 18px; margin: 0 0 18px; color: var(--accent); }
.login-card .form-grid { grid-template-columns: 1fr; }
.login-card label.remember { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-muted); }
.login-card .actions { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; }

/* Bill list */
.bill-thumb {
    width: 30px; height: 30px; border-radius: 3px; background: #eee;
    display: inline-flex; align-items: center; justify-content: center;
    color: #888; font-size: 11px; vertical-align: middle;
}

/* Upload */
.upload-area {
    border: 2px dashed #bbb; border-radius: 6px; padding: 40px 20px;
    text-align: center; color: var(--text-muted); margin-bottom: 16px;
    transition: border-color .15s, background .15s;
}
.upload-area.dragover { border-color: var(--accent); background: var(--accent-bg); color: var(--accent); }
.upload-area input[type=file] { display: none; }
.upload-btn-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 10px; }

/* Floating Action Button (mobile) */
.fab {
    position: fixed; bottom: 20px; right: 20px; z-index: 90;
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--accent); color: #fff; border: none;
    box-shadow: 0 3px 8px rgba(0,0,0,.25);
    display: none; align-items: center; justify-content: center;
    font-size: 24px; cursor: pointer;
}
.fab:hover { background: var(--accent-dark); }

/* Share-Editor */
.share-table { width: 100%; border-collapse: collapse; font-size: 13px; max-width: 500px; }
.share-table th, .share-table td { padding: 5px 8px; border: 1px solid #ddd; }
.share-table input[type=number] { width: 80px; text-align: right; padding: 3px 6px; border: 1px solid #bbb; border-radius: 3px; }
.share-quick-buttons { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0 12px; }

/* Stats */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: 4px; padding: 14px; }
.stat-card h3 { font-size: 12px; margin: 0 0 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .3px; }
.stat-num { font-size: 22px; font-weight: 600; color: var(--accent); }

/* Mobile (< 768px) */
@media (max-width: 767.98px) {
    nav.sidebar {
        transform: translateX(-100%);
        transition: transform .2s ease;
        width: 240px;
        box-shadow: 0 0 12px rgba(0,0,0,.15);
    }
    body.nav-open nav.sidebar { transform: translateX(0); }
    main.content { margin-left: 0; }
    .hamburger { display: inline-flex; }
    .form-grid { grid-template-columns: 1fr; }
    table.gl { display: block; overflow-x: auto; }
    .fab { display: flex; }
    .nav-overlay {
        display: none; position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 99;
    }
    body.nav-open .nav-overlay { display: block; }
    .toolbar { flex-direction: column; align-items: stretch; }
    .toolbar .search-box { min-width: 0; width: 100%; }
}