/* ============================================================
   Getränke Krebs — ERP Mockup
   Farbschema: Weinrot #9B1C1C / Anthrazit
   Dark Mode: Hetzner-Style (tiefes Dunkelgrau, kein Schwarz)
   ============================================================ */

/* ---- Light Mode Tokens ---- */
:root {
  --gk-red:         #9B1C1C;
  --gk-red-dark:    #7a1616;
  --gk-red-light:   #f9eaea;

  --sidebar-w:      220px;
  --topbar-h:       56px;

  --bg-page:        #f4f5f7;
  --bg-surface:     #ffffff;
  --bg-subtle:      #fafafa;
  --bg-hover:       #fdf6f6;

  --border:         #e5e7eb;
  --border-light:   #f0f0f0;

  --text-primary:   #1f2937;
  --text-secondary: #6b7280;
  --text-muted:     #9ca3af;

  --input-bg:       #ffffff;
  --input-border:   #d1d5db;

  --pfand-bg:       #fffbf0;
  --pfand-border:   #fde68a;
  --pfand-text:     #7a5a00;
  --pfand-hover:    #fef3c7;

  --bar-bg:         #f0f0f0;

  --badge-green-bg: #dcfce7;  --badge-green-tx: #166534;
  --badge-amber-bg: #fef3c7;  --badge-amber-tx: #854d0e;
  --badge-red-bg:   #fee2e2;  --badge-red-tx:   #991b1b;
  --badge-gray-bg:  #f1f5f9;  --badge-gray-tx:  #475569;
  --badge-blue-bg:  #dbeafe;  --badge-blue-tx:  #1e40af;
}

/* ---- Dark Mode Tokens (Hetzner-Style) ---- */
[data-theme="dark"] {
  --bg-page:        #141414;
  --bg-surface:     #1e1e1e;
  --bg-subtle:      #252525;
  --bg-hover:       #2a2020;

  --border:         #333333;
  --border-light:   #2a2a2a;

  --text-primary:   #e5e7eb;
  --text-secondary: #9ca3af;
  --text-muted:     #6b7280;

  --input-bg:       #252525;
  --input-border:   #404040;

  --pfand-bg:       #2a2510;
  --pfand-border:   #4a3d0a;
  --pfand-text:     #d4a843;
  --pfand-hover:    #332d14;

  --bar-bg:         #2a2a2a;

  --badge-green-bg: #052e16;  --badge-green-tx: #4ade80;
  --badge-amber-bg: #1c1500;  --badge-amber-tx: #fbbf24;
  --badge-red-bg:   #1c0505;  --badge-red-tx:   #f87171;
  --badge-gray-bg:  #1e2025;  --badge-gray-tx:  #94a3b8;
  --badge-blue-bg:  #0f1e3d;  --badge-blue-tx:  #60a5fa;

  --gk-red-light:   #2a1010;
}

/* ============================================================
   BASE
   ============================================================ */
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  background: var(--bg-page);
  color: var(--text-primary);
  transition: background .2s, color .2s;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
#sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow-y: auto;
  transition: background .2s, border-color .2s;
}

.sidebar-logo {
  padding: 20px 18px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.logo-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--gk-red);
  letter-spacing: 0.2px;
}

.logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.nav-section {
  padding: 14px 0 4px 16px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.7px;
  text-transform: uppercase;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background .12s, color .12s;
  cursor: pointer;
}

.nav-item i {
  font-size: 15px;
  width: 18px;
  flex-shrink: 0;
}

.nav-item:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
  text-decoration: none;
}

.nav-item.active {
  background: var(--gk-red-light);
  color: var(--gk-red);
  border-left: 3px solid var(--gk-red);
  font-weight: 500;
}

.sidebar-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding-top: 4px;
}

/* ============================================================
   DARK MODE TOGGLE
   ============================================================ */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px 14px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.toggle-track {
  position: relative;
  width: 36px;
  height: 20px;
  background: var(--border);
  border-radius: 10px;
  transition: background .2s;
  flex-shrink: 0;
}

.toggle-track.on {
  background: var(--gk-red);
}

.toggle-thumb {
  position: absolute;
  top: 3px; left: 3px;
  width: 14px; height: 14px;
  background: #fff;
  border-radius: 50%;
  transition: transform .2s;
}

.toggle-track.on .toggle-thumb {
  transform: translateX(16px);
}

/* ============================================================
   MAIN + TOPBAR
   ============================================================ */
#main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: background .2s, border-color .2s;
}

.topbar-search {
  flex: 1;
  max-width: 420px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-subtle);
  border: 1px solid var(--input-border);
  border-radius: 7px;
  padding: 6px 12px;
  color: var(--text-muted);
}
.topbar-search input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 13px;
  color: var(--text-primary);
  width: 100%;
}
.topbar-search input::placeholder { color: var(--text-muted); }
.topbar-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }

.page-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================================
   PAGES
   ============================================================ */
.page { display: none; }
.page.active { display: block; }
.content { padding: 24px; }

/* ============================================================
   STAT CARDS
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  transition: background .2s, border-color .2s;
}

.stat-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   CARD PANEL
   ============================================================ */
.card-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
  transition: background .2s, border-color .2s;
}

.card-panel-header {
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-subtle);
  transition: background .2s;
}

.card-panel-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================================
   TABELLEN
   ============================================================ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  padding: 9px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  background: var(--bg-subtle);
}

.data-table td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tbody tr:hover td {
  background: var(--bg-hover);
}

.pfand-row td {
  background: var(--pfand-bg);
  color: var(--pfand-text);
  font-size: 12px;
  border-bottom: 1px solid var(--pfand-border);
}

.pfand-row:hover td { background: var(--pfand-hover) !important; }

.pfand-artikel-row td {
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 12px;
}

/* ============================================================
   BADGES
   ============================================================ */
.badge-status {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 600;
}

.badge-green { background: var(--badge-green-bg); color: var(--badge-green-tx); }
.badge-amber { background: var(--badge-amber-bg); color: var(--badge-amber-tx); }
.badge-red   { background: var(--badge-red-bg);   color: var(--badge-red-tx);   }
.badge-gray  { background: var(--badge-gray-bg);  color: var(--badge-gray-tx);  }
.badge-blue  { background: var(--badge-blue-bg);  color: var(--badge-blue-tx);  }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary-gk {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--gk-red);
  color: #fff;
  border: none;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background .12s;
}
.btn-primary-gk:hover { background: var(--gk-red-dark); }

.btn-secondary-gk {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--input-border);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background .12s;
}
.btn-secondary-gk:hover { background: var(--bg-subtle); }

.btn-danger-gk {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: #b91c1c;
  color: #fff;
  border: none;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background .12s;
}
.btn-danger-gk:hover { background: #991b1b; }

.btn-sm-gk {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--input-border);
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  transition: background .12s, color .12s;
  white-space: nowrap;
}
.btn-sm-gk:hover {
  background: var(--gk-red-light);
  color: var(--gk-red);
  border-color: var(--gk-red);
}

/* ============================================================
   INPUTS / SELECTS
   ============================================================ */
input, select, textarea {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-primary);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
  transition: background .2s, border-color .2s, color .2s;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--gk-red);
  box-shadow: 0 0 0 3px rgba(155,28,28,.12);
}

/* ============================================================
   TABELLEN — KLICKBARE ZEILEN
   ============================================================ */
.data-table tbody tr.clickable { cursor: pointer; }
.data-table tbody tr.clickable:hover { background: var(--bg-subtle); }

/* ============================================================
   RECHNUNGS-DETAIL
   ============================================================ */
.rechnung-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.meta-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 3px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.meta-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.total-box {
  display: flex;
  justify-content: flex-end;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
}

.total-table {
  width: 280px;
  font-size: 13px;
  border-collapse: collapse;
}

.total-table td { padding: 4px 0; color: var(--text-primary); }

.total-grand td {
  padding-top: 10px;
  border-top: 1px solid var(--border);
  font-size: 15px;
}

/* ============================================================
   STATISTIK-BALKEN
   ============================================================ */
.chart-wrap { padding: 16px 20px; }

.bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 12px;
}

.bar-label {
  width: 70px;
  text-align: right;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.bar-bg {
  flex: 1;
  height: 18px;
  background: var(--bar-bg);
  border-radius: 4px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: var(--gk-red);
  border-radius: 4px;
}

.bar-val {
  width: 70px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  flex-shrink: 0;
}

/* ============================================================
   FORMULARE
   ============================================================ */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  padding: 18px;
}

.form-group { display: flex; flex-direction: column; gap: 4px; }

.form-group label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* ============================================================
   BOOTSTRAP OVERRIDES für Dark Mode
   ============================================================ */
[data-theme="dark"] .text-muted { color: var(--text-muted) !important; }
[data-theme="dark"] .text-success { color: #4ade80 !important; }
[data-theme="dark"] .text-danger  { color: #f87171 !important; }
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
  background: var(--input-bg);
  border-color: var(--input-border);
  color: var(--text-primary);
}
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
  background: var(--input-bg);
  color: var(--text-primary);
  border-color: var(--gk-red);
  box-shadow: 0 0 0 3px rgba(155,28,28,.2);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  #sidebar { display: none; }
  #main { margin-left: 0; }
  .stats-grid { grid-template-columns: 1fr; }
}