/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 1rem; border-radius: var(--radius-sm);
  font-size: 0.875rem; font-weight: 500; cursor: pointer;
  border: 1px solid transparent; transition: var(--transition);
  white-space: nowrap; user-select: none;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-strong); }
.btn-secondary:hover:not(:disabled) { background: var(--color-bg); }
.btn-danger { background: var(--color-danger); color: #fff; border-color: var(--color-danger); }
.btn-danger:hover:not(:disabled) { background: #b91c1c; }
.btn-success { background: var(--color-success); color: #fff; }
.btn-success:hover:not(:disabled) { background: #15803d; }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; }
.btn-lg { padding: 0.7rem 1.4rem; font-size: 1rem; }
.btn-icon { padding: 0.5rem; }
.btn-link { background: none; border: none; padding: 0; cursor: pointer; color: var(--color-primary); text-decoration: underline; font-size: inherit; }
.btn-link:hover { color: var(--color-primary-hover); }

/* ===== FORMS ===== */
.form-group { display: flex; flex-direction: column; gap: 0.3rem; margin-bottom: 1rem; }
.form-group label { font-size: 0.875rem; font-weight: 500; color: var(--color-text); }
.form-group label .required { color: var(--color-danger); margin-left: 2px; }

input[type="text"], input[type="number"], input[type="date"], input[type="email"],
input[type="url"], input[type="tel"], input[type="search"], select, textarea {
  width: 100%; padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm); font-size: 0.9rem;
  color: var(--color-text); background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}
input.error, select.error { border-color: var(--color-danger); }
.form-hint { font-size: 0.8rem; color: var(--color-text-muted); }
textarea { resize: vertical; min-height: 80px; }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 2rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row.three { grid-template-columns: 1fr 1fr 1fr; }

/* ===== CARDS ===== */
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 1.25rem;
  box-shadow: var(--shadow);
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.card-title { font-size: 1rem; font-weight: 600; }

/* ===== TABLES ===== */
.table-wrapper { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--color-border); position: relative; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead { background: var(--color-bg); }
th { padding: 0.6rem 0.85rem; text-align: left; font-weight: 600; color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; border-bottom: 1px solid var(--color-border); white-space: nowrap; position: sticky; top: 0; z-index: 1; background: var(--color-bg); }
td { padding: 0.65rem 0.85rem; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--color-bg); }
.table-clickable tbody tr { cursor: pointer; }
.table-clickable tbody tr:hover { background: var(--color-primary-light); }
/* Scroll-Indikator: zeigt Fading-Overlay wenn Tabelle horizontal scrollbar */
.table-wrapper::after { content: ''; position: absolute; top: 0; right: 0; bottom: 0; width: 28px; background: linear-gradient(to right, transparent, var(--color-surface)); pointer-events: none; border-radius: 0 var(--radius) var(--radius) 0; }

/* ===== BADGES ===== */
.badge {
  display: inline-flex; align-items: center; padding: 0.2rem 0.55rem;
  border-radius: 999px; font-size: 0.75rem; font-weight: 600; white-space: nowrap;
}
.badge-green  { background: var(--color-success-light); color: var(--color-success); }
.badge-yellow { background: var(--color-warning-light); color: var(--color-warning); }
.badge-red    { background: var(--color-danger-light);  color: var(--color-danger);  }
.badge-blue   { background: var(--color-primary-light); color: var(--color-primary); }
.badge-gray   { background: var(--color-border);        color: var(--color-text-muted); }
.badge-cyan   { background: var(--color-info-light);    color: var(--color-info); }

/* ===== KACHELN (Dashboard) ===== */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem; }
.kpi-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow); cursor: pointer; transition: var(--transition);
}
.kpi-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.kpi-label { font-size: 0.78rem; color: var(--color-text-muted); font-weight: 500; margin-bottom: 0.4rem; }
.kpi-value { font-size: 2rem; font-weight: 700; line-height: 1; }
.kpi-card.danger  .kpi-value { color: var(--color-danger); }
.kpi-card.warning .kpi-value { color: var(--color-warning); }
.kpi-card.success .kpi-value { color: var(--color-success); }
.kpi-card.info    .kpi-value { color: var(--color-info); }
.kpi-sub { font-size: 0.72rem; color: var(--color-text-muted); margin-top: 0.25rem; }

/* ===== MODAL ===== */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 1rem;
}
.modal-backdrop.hidden { display: none; }
.modal {
  background: var(--color-surface); border-radius: var(--radius-lg);
  width: 100%; max-width: 560px; max-height: 90vh;
  overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.modal-lg { max-width: 760px; }
.modal-xl { max-width: 920px; }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.5rem; border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; background: var(--color-surface); z-index: 1;
}
.modal-title { font-size: 1.05rem; font-weight: 600; }
.modal-body { padding: 1.5rem; }
.modal-footer {
  padding: 1rem 1.5rem; border-top: 1px solid var(--color-border);
  display: flex; gap: 0.75rem; justify-content: flex-end;
  position: sticky; bottom: 0; background: var(--color-surface);
}

/* ===== DETAIL-MODAL (zentriertes 80%-Fenster) ===== */
/* z-index 900: über Sidebar (200) und Header (100), aber UNTER Modal (1000) —
   so liegt ein aus dem Detail geöffnetes Modal (z.B. Positionen bearbeiten) korrekt darüber. */
.detail-modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0);
  display: flex; align-items: center; justify-content: center; z-index: 900;
  visibility: hidden; transition: background 0.2s ease, visibility 0s linear 0.2s;
}
.detail-modal-backdrop.open {
  visibility: visible; background: rgba(0,0,0,0.5);
  transition: background 0.2s ease;
}
.detail-modal-panel {
  background: var(--color-surface);
  width: 80vw; max-width: 1100px; height: 80vh;
  display: flex; flex-direction: column;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 70px rgba(0,0,0,0.28);
  overflow: hidden;
  opacity: 0; transform: scale(0.96);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.detail-modal-backdrop.open .detail-modal-panel { opacity: 1; transform: scale(1); }
.detail-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.5rem; border-bottom: 1px solid var(--color-border);
  background: var(--color-surface); flex-shrink: 0;
}
.detail-modal-title { font-size: 1.05rem; font-weight: 600; }
.detail-modal-body { padding: 1.25rem 1.5rem; flex: 1; overflow-y: auto; }
@media (max-width: 768px) {
  .detail-modal-panel { width: 95vw; height: 90vh; }
}

/* ===== TOAST ===== */
#toast-container {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  display: flex; flex-direction: column; gap: 0.5rem;
  z-index: 9999; pointer-events: none;
}
.toast {
  background: var(--color-text); color: #fff; padding: 0.75rem 1.1rem;
  border-radius: var(--radius); font-size: 0.875rem; box-shadow: var(--shadow-md);
  display: flex; align-items: center; gap: 0.5rem;
  animation: slideIn 0.2s ease; pointer-events: all;
  max-width: 360px;
}
.toast.success { background: var(--color-success); }
.toast.error   { background: var(--color-danger); }
.toast.warning { background: var(--color-warning); }
.toast.info    { background: var(--color-primary); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ===== UTILS ===== */
.hidden { display: none !important; }
.text-muted { color: var(--color-text-muted); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.8rem; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.fw-600 { font-weight: 600; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.flex { display: flex; }
.w-full { width: 100%; }
.empty-state {
  text-align: center; padding: 3rem 1rem; color: var(--color-text-muted);
}
.empty-state .icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.spinner {
  width: 20px; height: 20px; border: 2px solid var(--color-border);
  border-top-color: var(--color-primary); border-radius: 50%;
  animation: spin 0.6s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay {
  display: flex; align-items: center; justify-content: center;
  padding: 2rem; gap: 0.75rem; color: var(--color-text-muted);
}

/* ===== SEARCH BAR ===== */
.search-bar {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--color-surface); border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm); padding: 0.4rem 0.75rem; flex: 1; max-width: 360px;
}
.search-bar input {
  border: none; background: none; padding: 0; font-size: 0.9rem;
  flex: 1; color: var(--color-text);
}
.search-bar input:focus { outline: none; box-shadow: none; }

/* ===== FILTER ROW ===== */
.filter-row {
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1rem;
}
.filter-row select { width: auto; min-width: 140px; }

/* ===== PAGE HEADER ===== */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.5rem; flex-wrap: wrap; gap: 0.75rem;
}
.page-header h1 { font-size: 1.35rem; }

/* ===== TABS ===== */
.tabs { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 2px solid var(--color-border); margin-bottom: 1.5rem; }
.tab-btn {
  padding: 0.6rem 1.1rem; font-size: 0.875rem; font-weight: 500;
  color: var(--color-text-muted); background: none; border: none;
  cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px;
  transition: var(--transition);
}
.tab-btn:hover { color: var(--color-text); }
.tab-btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ===== STOCK INDICATOR ===== */
.stock-ok      { color: var(--color-success); font-weight: 600; }
.stock-low     { color: var(--color-warning); font-weight: 600; }
.stock-empty   { color: var(--color-danger);  font-weight: 600; }
.row-low       td { background: var(--color-warning-light) !important; }
.row-empty     td { background: var(--color-danger-light) !important; }
.location-free td { background: var(--color-success-light) !important; }

/* ===== DYNAMIC ITEM ROWS (Bestellung, WE) ===== */
.item-rows .item-row {
  display: grid; gap: 0.5rem; align-items: start; padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}
.item-rows .item-row:last-child { border-bottom: none; }
.item-row-remove {
  background: none; border: none; cursor: pointer;
  color: var(--color-danger); padding: 0.5rem; font-size: 1.2rem;
  line-height: 1; align-self: center;
}

/* ===== MIKRO-INTERAKTIONEN ===== */
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn { transition: background var(--transition), border-color var(--transition), transform 80ms ease, box-shadow var(--transition); }
tbody tr { transition: background var(--transition); }
tbody tr:hover { background: rgba(37,99,235,0.03); }

/* ===== BUTTON LOADING STATE ===== */
.btn.is-loading {
  position: relative; color: transparent !important; pointer-events: none;
}
.btn.is-loading::after {
  content: '';
  position: absolute; inset: 0; margin: auto;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.5s linear infinite;
}
.btn-secondary.is-loading::after { border-color: rgba(0,0,0,0.15); border-top-color: var(--color-text); }

/* ===== TOAST PROGRESS BAR ===== */
.toast { overflow: hidden; position: relative; }
.toast-progress {
  position: absolute; bottom: 0; left: 0; height: 3px;
  background: rgba(255,255,255,0.4);
  animation: toastProgress linear forwards;
}
.toast.success .toast-progress { background: rgba(255,255,255,0.5); }
.toast.error   .toast-progress { background: rgba(255,255,255,0.5); }
@keyframes toastProgress { from { width: 100%; } to { width: 0%; } }

/* ===== MOBILE MODAL BOTTOM SHEET ===== */
@media (max-width: 600px) {
  .modal-backdrop {
    align-items: flex-end;
    padding: 0;
  }
  .modal {
    max-width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    max-height: 92vh;
    animation: slideUp 0.25s cubic-bezier(0.32, 0.72, 0, 1);
  }
  .modal-header::before {
    content: '';
    display: block; width: 36px; height: 4px;
    background: var(--color-border-strong); border-radius: 2px;
    margin: 0 auto 0.75rem;
  }
  .modal-header { flex-direction: column; align-items: center; padding-top: 0.75rem; }
  .modal-footer { flex-direction: column-reverse; gap: 0.5rem; }
  .modal-footer .btn { width: 100%; justify-content: center; }
}
@keyframes slideUp { from { transform: translateY(100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* Toast auf Mobile: über Bottom-Nav */
@media (max-width: 768px) {
  #toast-container { bottom: calc(var(--bottom-nav-height) + 1rem); right: 1rem; left: 1rem; }
  .toast { max-width: 100%; }
}

/* ===== PAGINATION ===== */
.pagination { display: flex; align-items: center; gap: 0.3rem; margin-top: 1rem; justify-content: center; flex-wrap: wrap; }
.pager-info { font-size: 0.8rem; color: var(--color-text-muted); margin-right: 0.5rem; }
.pager-btn { min-width: 32px; height: 32px; padding: 0 0.5rem; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-text); font-size: 0.875rem; cursor: pointer; }
.pager-btn:hover:not(:disabled):not(.active) { background: var(--color-bg); }
.pager-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); pointer-events: none; }
.pager-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pager-ellipsis { color: var(--color-text-muted); padding: 0 0.2rem; line-height: 32px; }

/* ===== MOBILE: Sekundäre Tabellenspalten ausblenden ===== */
@media (max-width: 480px) {
  /* Artikel: Behalten col 1(Name) 2(Herst.nr) 4(Bestand) 6(Lieferant) — Ausblenden 3(Einheit) 5(Meldebest.) 7(Lagerplatz) */
  #articlesThead th:nth-child(3), #articlesTbody td:nth-child(3),
  #articlesThead th:nth-child(5), #articlesTbody td:nth-child(5),
  #articlesThead th:nth-child(7), #articlesTbody td:nth-child(7) { display: none; }
  /* Bestellungen: Behalten col 1(Nr) 2(Lieferant) 6(Status) — Ausblenden 3(Datum) 4(ETA) 5(Pos.) */
  #ordersThead th:nth-child(3), #ordersTbody td:nth-child(3),
  #ordersThead th:nth-child(4), #ordersTbody td:nth-child(4),
  #ordersThead th:nth-child(5), #ordersTbody td:nth-child(5) { display: none; }
}

/* ===== INVENTUR SPREADSHEET ===== */
.inventur-loc-header td { background: var(--color-bg); font-size: 0.875rem; }
.inventur-loc-header.loc-confirmed td { background: var(--color-success-light) !important; }
.qty-stepper { display: flex; align-items: center; gap: 0.25rem; }
.qty-stepper input { text-align: center; }
.btn-xs { font-size: 0.75rem; padding: 0.2rem 0.45rem; line-height: 1.3; }
#invAreaTabsWrap { margin-bottom: 0; }
#invAreaTabsWrap .tabs { margin-bottom: 1rem; }

/* ===== SKELETON LOADING ===== */
.skeleton-cell {
  height: 14px; border-radius: 4px;
  background: linear-gradient(90deg,
    var(--color-border) 25%,
    var(--color-bg) 50%,
    var(--color-border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
}
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* ===== STOCK TABLE HIGHLIGHTING ===== */
.row-highlight {
  background: var(--color-primary-light) !important;
  font-weight: 600;
}
.row-dimmed {
  opacity: 0.45;
}