:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --sidebar-bg: #1a1a2e;
  --sidebar-active: #ffc107;
  --text: #2c3e50;
  --text-muted: #7f8c8d;
  --border: #e8eaed;
  --primary: #ffc107;
  --primary-dark: #e6a800;
  --danger: #e74c3c;
  --success: #27ae60;
  --info: #3498db;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,.06);
  --shadow-lg: 0 4px 20px rgba(0,0,0,.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* ─── LOGIN ─────────────────────────────────────── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}
.login-box {
  background: var(--surface);
  padding: 48px 40px;
  border-radius: 12px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
}
.login-box h1 { font-size: 22px; margin-bottom: 4px; }
.login-box .subtitle { color: var(--text-muted); font-size: 13px; margin-bottom: 28px; }
.login-box input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 14px;
  transition: border-color .2s;
}
.login-box input:focus { outline: none; border-color: var(--primary); }
.login-box button {
  width: 100%;
  padding: 12px;
  background: var(--primary);
  color: #1a1a2e;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s;
}
.login-box button:hover { background: var(--primary-dark); }
.login-box button:disabled { opacity: .7; cursor: wait; }
.login-error { color: var(--danger); font-size: 13px; margin-top: 10px; display: none; }
.spinner-sm { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(26,26,46,.3); border-top-color: #1a1a2e; border-radius: 50%; animation: spin .6s linear infinite; vertical-align: middle; margin-right: 6px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── LAYOUT ────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px;
  background: var(--sidebar-bg);
  color: #ccc;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}
.sidebar-header {
  padding: 20px 18px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-header h2 { font-size: 15px; color: var(--primary); letter-spacing: .5px; }
.sidebar-header small { font-size: 11px; color: #666; }
.sidebar nav { flex: 1; padding: 12px 0; }
.sidebar .nav-section { padding: 6px 18px; font-size: 10px; text-transform: uppercase; letter-spacing: 1px; color: #555; margin-top: 12px; }
.sidebar a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  color: #aaa;
  text-decoration: none;
  font-size: 13px;
  transition: all .15s;
  border-left: 3px solid transparent;
}
.sidebar a:hover { color: #fff; background: rgba(255,255,255,.04); }
.sidebar a.active { color: var(--primary); border-left-color: var(--primary); background: rgba(255,193,7,.06); }
.sidebar a .icon { width: 18px; text-align: center; font-size: 14px; }
.sidebar-footer {
  padding: 14px 18px;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 12px;
}
.sidebar-footer .user-name { color: #fff; font-weight: 500; }
.sidebar-footer button {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 4px;
  color: #ccc;
  cursor: pointer;
  font-size: 11px;
  padding: 6px 14px;
  margin-top: 6px;
  transition: all .2s;
}
.sidebar-footer button:hover { color: #fff; background: var(--danger); border-color: var(--danger); }

.main-content {
  flex: 1;
  margin-left: 240px;
  padding: 0;
  min-height: 100vh;
}

/* ─── PAGE HEADER ───────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.page-header h1 { font-size: 22px; font-weight: 600; }
.page-header .actions { display: flex; gap: 10px; }

/* ─── BUTTONS ───────────────────────────────────── */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-primary { background: var(--primary); color: #1a1a2e; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #eee; color: var(--text); }
.btn-secondary:hover { background: #ddd; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #c0392b; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #219a52; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }

/* ─── CARDS ─────────────────────────────────────── */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.card-header h3 { font-size: 14px; font-weight: 600; }

/* ─── STATS ─────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.stat-card .label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.stat-card .value { font-size: 28px; font-weight: 700; margin: 4px 0; }
.stat-card .sub { font-size: 12px; color: var(--text-muted); }
.stat-card.warning .value { color: var(--danger); }
.stat-card.success .value { color: var(--success); }

/* ─── TABLES ────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 10px 12px; background: #f8f9fa; font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .3px; color: var(--text-muted); border-bottom: 2px solid var(--border); }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
tr:hover td { background: #fafbfc; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 500; }
.badge-eb { background: #e8f4fd; color: #2980b9; }
.badge-kw { background: #fef3e2; color: #d35400; }
.badge-success { background: #e8f8f0; color: #27ae60; }
.badge-danger { background: #fdecea; color: #e74c3c; }
.badge-warning { background: #fef9e7; color: #f39c12; }

/* ─── FORMS ─────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12px; font-weight: 500; margin-bottom: 5px; color: var(--text-muted); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  transition: border-color .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }

/* ─── SEARCH BAR ────────────────────────────────── */
.search-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}
.search-bar input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
}
.search-bar input:focus { outline: none; border-color: var(--primary); }
.search-bar select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13px;
  min-width: 160px;
}

/* ─── MODAL ─────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn .15s;
}
.modal {
  background: var(--surface);
  border-radius: 12px;
  padding: 28px;
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal h2 { font-size: 18px; margin-bottom: 18px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ─── TOAST ─────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  background: #333;
  color: #fff;
  border-radius: var(--radius);
  font-size: 13px;
  z-index: 9999;
  animation: slideUp .3s;
  max-width: 360px;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ─── LAGERPLAN VISUAL ──────────────────────────── */
.lagerplan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(62px, 1fr));
  gap: 3px;
}
.lagerplan-cell {
  width: 100%;
  min-height: 38px;
  padding: 4px 2px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .1s;
  border: 1px solid transparent;
  text-align: center;
  word-break: break-all;
  line-height: 1.2;
  position: relative;
  flex-direction: column;
}
.lp-hoehe { font-size: 8px; opacity: 0.7; font-weight: 400; margin-top: 1px; }
.lagerplan-cell:hover { transform: scale(1.15); z-index: 2; border-color: #333; }
.lagerplan-cell.belegt-nr { background: #e74c3c; color: #fff; }
.lagerplan-cell.belegt-selected { background: #2980b9; color: #fff; font-size: 10px; font-weight: 700; border: 2px solid #1a5276; }
.lagerplan-cell.belegt-x { background: #95a5a6; color: #fff; }
.lagerplan-cell.belegt-sonstige { background: #f39c12; color: #fff; }
.lagerplan-cell.frei { background: #2ecc71; color: #fff; }

.lagerplan-tabs { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.lagerplan-tabs button {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  font-size: 12px;
  transition: all .15s;
}
.lagerplan-tabs button.active { background: var(--primary); border-color: var(--primary); font-weight: 600; }

/* ─── PICKLISTE TABLET ──────────────────────────── */
.picklist-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  transition: all .15s;
}
.picklist-item.done { background: #e8f8f0; border-color: var(--success); opacity: .7; }
.picklist-item .check { width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--border); cursor: pointer; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.picklist-item.done .check { background: var(--success); border-color: var(--success); color: #fff; }
.picklist-item .nr { font-weight: 600; font-size: 15px; min-width: 80px; }
.picklist-item .platz { font-size: 14px; color: var(--info); font-weight: 500; }
.picklist-item .info { font-size: 12px; color: var(--text-muted); }

/* ─── TABS ──────────────────────────────────────── */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 20px; }
.tabs button {
  padding: 10px 18px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-muted);
  transition: all .15s;
}
.tabs button.active { color: var(--primary-dark); border-bottom-color: var(--primary); font-weight: 600; }

/* ─── PROGRESS BAR ──────────────────────────────── */
.progress-bar { height: 8px; background: #eee; border-radius: 4px; overflow: hidden; margin-top: 8px; }
.progress-bar .fill { height: 100%; border-radius: 4px; transition: width .3s; }
.progress-bar .fill.green { background: var(--success); }
.progress-bar .fill.yellow { background: var(--primary); }
.progress-bar .fill.red { background: var(--danger); }

/* ─── RESPONSIVE ────────────────────────────────── */
@media (max-width: 1024px) {
  .sidebar {
    position: fixed;
    bottom: 0;
    top: auto;
    left: 0;
    right: 0;
    width: 100%;
    height: auto;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    z-index: 1000;
    border-top: 1px solid rgba(255,255,255,.1);
  }
  .sidebar-header, .sidebar .nav-section { display: none; }
  .sidebar-footer { 
    position: fixed; top: 0; right: 0; left: auto; bottom: auto;
    padding: 8px 14px; border: none; background: var(--sidebar-bg);
    border-radius: 0 0 0 8px; z-index: 1001; display: flex; align-items: center; gap: 8px;
  }
  .sidebar-footer .user-name { font-size: 11px; }
  .sidebar-footer button { margin-top: 0; }
  .sidebar nav {
    display: flex;
    flex-direction: row;
    padding: 0;
    width: 100%;
  }
  .sidebar a {
    flex-direction: column;
    padding: 8px 12px;
    font-size: 10px;
    gap: 2px;
    border-left: none;
    border-top: 3px solid transparent;
    white-space: nowrap;
    min-width: 60px;
    text-align: center;
    justify-content: center;
  }
  .sidebar a.active { border-left-color: transparent; border-top-color: var(--primary); }
  .sidebar a .icon { font-size: 16px; width: auto; }

  .main-content {
    margin-left: 0;
    padding: 12px;
    padding-bottom: 72px;
    min-height: 100vh;
  }

  .page-header { flex-direction: column; align-items: flex-start; gap: 10px; margin-bottom: 16px; }
  .page-header h1 { font-size: 18px; }
  .page-header .actions { width: 100%; }
  .page-header .actions .btn { flex: 1; justify-content: center; }

  .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 16px; }
  .stat-card { padding: 12px 14px; }
  .stat-card .value { font-size: 22px; }
  .stat-card .label { font-size: 10px; }

  .form-row, .form-row-3 { grid-template-columns: 1fr; gap: 10px; }

  .card { padding: 14px; margin-bottom: 12px; }
  .card-header { flex-direction: column; align-items: flex-start; gap: 8px; }

  .search-bar { flex-direction: column; gap: 8px; }
  .search-bar select { min-width: unset; width: 100%; }

  .btn-lg { padding: 14px 20px; font-size: 14px; width: 100%; justify-content: center; }

  table { font-size: 11px; }
  th, td { padding: 8px 6px; }

  .lagerplan-grid { grid-template-columns: repeat(auto-fill, minmax(52px, 1fr)); gap: 2px; }
  .lagerplan-cell { min-height: 32px; font-size: 9px; padding: 3px 1px; }

  .lagerplan-tabs { gap: 4px; }
  .lagerplan-tabs button { padding: 5px 8px; font-size: 10px; }

  .picklist-item { padding: 10px 12px; gap: 10px; }
  .picklist-item .nr { font-size: 13px; min-width: 60px; }
  .picklist-item .platz { font-size: 12px; }

  .modal { padding: 18px; width: 95%; }

  .tabs { overflow-x: auto; }
  .tabs button { padding: 8px 12px; font-size: 12px; white-space: nowrap; }

  .toast { left: 12px; right: 12px; bottom: 72px; max-width: none; text-align: center; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card .value { font-size: 20px; }

  .lagerplan-grid { grid-template-columns: repeat(auto-fill, minmax(46px, 1fr)); }
  .lagerplan-cell { min-height: 28px; font-size: 8px; }

  .page-header h1 { font-size: 16px; }
}