:root {
  --color-bg: #f4f1ec;
  --color-surface: #ffffff;
  --color-border: #e2dcd0;
  --color-text: #2b241b;
  --color-text-muted: #6f6656;
  --color-primary: #7a4a1f;
  --color-primary-dark: #5c3616;
  --color-primary-contrast: #ffffff;
  --color-accent: #b8860b;
  --color-success: #2e7d32;
  --color-success-bg: #e8f5e9;
  --color-warning: #b45309;
  --color-warning-bg: #fef3c7;
  --color-danger: #c62828;
  --color-danger-bg: #fdecea;
  --color-info: #1565c0;
  --color-info-bg: #e3f2fd;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(43, 36, 27, 0.08), 0 1px 2px rgba(43, 36, 27, 0.06);
  --sidebar-width: 240px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #1c1712;
    --color-surface: #262019;
    --color-border: #3a3226;
    --color-text: #ece6da;
    --color-text-muted: #a99d87;
    --color-primary: #c98a4b;
    --color-primary-dark: #b8763a;
    --color-primary-contrast: #1c1712;
    --color-accent: #d8a94a;
    --color-success-bg: #16301a;
    --color-warning-bg: #3a2a0a;
    --color-danger-bg: #3a1414;
    --color-info-bg: #10263d;
  }
}

:root[data-theme="dark"] {
  --color-bg: #1c1712;
  --color-surface: #262019;
  --color-border: #3a3226;
  --color-text: #ece6da;
  --color-text-muted: #a99d87;
  --color-primary: #c98a4b;
  --color-primary-dark: #b8763a;
  --color-primary-contrast: #1c1712;
  --color-accent: #d8a94a;
  --color-success-bg: #16301a;
  --color-warning-bg: #3a2a0a;
  --color-danger-bg: #3a1414;
  --color-info-bg: #10263d;
}

* { 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);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--color-primary); }

.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  background: var(--color-primary-dark);
  color: #fff8ee;
  flex-shrink: 0;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
}

.sidebar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  padding: 0 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  margin-bottom: 10px;
  text-align: center;
}

.sidebar-brand small { display: block; font-weight: 700; font-size: 0.85rem; color: #000; opacity: 1; text-transform: uppercase; letter-spacing: 0.06em; }

.brand-logo {
  display: block;
  margin: 0 auto;
}
.sidebar-brand .brand-logo { width: 150px; height: auto; margin-bottom: 8px; }
.login-card .brand-logo {
  width: 200px;
  height: auto;
  margin-bottom: 16px;
  background: #fff8ee;
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.25);
}

.sidebar nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }

.sidebar a.nav-link {
  color: #f2e6d3;
  text-decoration: none;
  padding: 10px 20px;
  font-size: 0.92rem;
  border-left: 3px solid transparent;
}

.sidebar a.nav-link:hover { background: rgba(255,255,255,0.08); }
.sidebar a.nav-link.active { background: rgba(255,255,255,0.14); border-left-color: var(--color-accent); font-weight: 600; }
.sidebar a.nav-link.nav-link-heading { font-weight: 700; color: #000; }

.sidebar .nav-section-title {
  padding: 16px 20px 4px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #000;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 1;
}

.sidebar button.nav-section-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin: 8px 0 0;
  padding: 16px 20px 4px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: #000;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sidebar button.nav-section-toggle:hover { opacity: 0.75; }

.sidebar .nav-section-arrow {
  font-size: 1rem;
  line-height: 1;
  transition: transform 0.15s ease;
  transform: rotate(0deg);
}

.sidebar button.nav-section-toggle.nav-section-toggle-open .nav-section-arrow { transform: rotate(90deg); }

.sidebar .nav-section-group { display: flex; flex-direction: column; gap: 2px; }

.sidebar-user {
  padding: 14px 20px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.85rem;
}
.sidebar-user form { margin-top: 6px; }
.sidebar-user button.link-btn { background:none;border:none;color:#f2e6d3;text-decoration:underline;padding:0;cursor:pointer;font-size:0.8rem; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  padding: 16px 28px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar h1 { font-size: 1.3rem; margin: 0; }

.content { padding: 24px 28px; flex: 1; }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}
.card h2, .card h3 { margin-top: 0; }

.collapsible-card summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.collapsible-card summary::-webkit-details-marker { display: none; }
.collapsible-card summary::before { content: "▸ "; color: var(--color-text-muted); }
.collapsible-card[open] summary::before { content: "▾ "; }
.collapsible-card .collapsible-summary-title { font-weight: 700; }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.grid-5 { grid-template-columns: repeat(5, minmax(0,1fr)); }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; } }

.stat-tile { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.stat-tile .stat-value { font-size: 1.7rem; font-weight: 700; }
.stat-tile .stat-label { color: var(--color-text-muted); font-size: 0.82rem; }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--color-border); }
th { color: var(--color-text-muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
tbody tr:hover { background: rgba(122,74,31,0.05); }
.table-wrap { overflow-x: auto; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  border: none;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--color-primary-dark); }
.btn.btn-secondary { background: transparent; color: var(--color-primary); border: 1px solid var(--color-border); }
.btn.btn-secondary:hover { background: rgba(122,74,31,0.08); }
.btn.btn-danger { background: var(--color-danger); }
.btn.btn-sm { padding: 5px 10px; font-size: 0.8rem; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-info { background: var(--color-info-bg); color: var(--color-info); }
.badge-muted { background: var(--color-border); color: var(--color-text-muted); }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 14px; font-size: 0.9rem; }
.alert-success { background: var(--color-success-bg); color: var(--color-success); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.alert-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.alert-info { background: var(--color-info-bg); color: var(--color-info); }

label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 5px; margin-top: 12px; }
input, select, textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--color-border);
  border-radius: 7px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.92rem;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row > * { flex: 1; min-width: 160px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
.checkbox-row input { width: auto; }
.checkbox-row label { margin: 0; }

.actions-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.text-muted { color: var(--color-text-muted); }
.mt-0 { margin-top: 0; }
.empty-state { text-align: center; padding: 40px 20px; color: var(--color-text-muted); }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--color-primary-dark); }
.login-card { background: var(--color-surface); border-radius: var(--radius); padding: 36px; width: 100%; max-width: 380px; box-shadow: 0 8px 30px rgba(0,0,0,0.25); }
.login-card h1 { text-align: center; margin-bottom: 4px; }
.login-card p.sub { text-align: center; color: var(--color-text-muted); margin-top: 0; margin-bottom: 20px; font-size: 0.88rem; }

.bar-chart-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 0.85rem; }
.bar-chart-label { width: 160px; flex-shrink: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-chart-track { flex: 1; background: var(--color-border); border-radius: 6px; height: 18px; overflow: hidden; }
.bar-chart-fill { background: var(--color-primary); height: 100%; border-radius: 6px; }
.bar-chart-fill.fill-danger { background: var(--color-danger); }
.bar-chart-value { width: 60px; text-align: right; flex-shrink: 0; font-variant-numeric: tabular-nums; }

.hour-chart { display: flex; align-items: flex-end; gap: 2px; height: 160px; }
.hour-chart-bar { flex: 1; background: var(--color-primary); border-radius: 3px 3px 0 0; min-height: 2px; }
.hour-chart-labels { display: flex; gap: 2px; margin-top: 4px; }
.hour-chart-labels span { flex: 1; text-align: center; font-size: 0.65rem; color: var(--color-text-muted); }

.pill-nav { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.pill-nav a { padding: 6px 14px; border-radius: 999px; background: var(--color-surface); border: 1px solid var(--color-border); text-decoration: none; color: var(--color-text); font-size: 0.85rem; }
.pill-nav a.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.theme-toggle {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  width: 36px;
  height: 36px;
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.theme-toggle:hover { background: rgba(122,74,31,0.08); }

.mobile-toggle { display: none; }
@media (max-width: 860px) {
  .sidebar {
    position: fixed; z-index: 20; top: 0; left: 0;
    height: 100vh; height: 100dvh;                 /* dvh: berueksichtigt die Handy-Browserleiste */
    overflow-y: auto;                              /* langes Menue scrollt IN sich selbst */
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;                  /* kein Weiterscrollen auf den Hintergrund */
    transform: translateX(-100%); transition: transform 0.2s;
  }
  .sidebar.open { transform: translateX(0); }
  body.menu-open { overflow: hidden; }             /* Hintergrund sperren, solange das Menue offen ist */
  .mobile-toggle { display: inline-flex; }
  .content { padding: 16px; }
  .topbar { padding: 12px 16px; }
}