:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --line: #d7dde4;
  --text: #17202a;
  --muted: #667085;
  --accent: #0f766e;
  --accent-dark: #0b5d58;
  --danger: #b42318;
  --warning: #b54708;
  --ok: #027a48;
  --shadow: 0 10px 30px rgba(16, 24, 40, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

button, input, select, textarea {
  font: inherit;
}

button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 0.55rem 0.8rem;
  cursor: pointer;
}

button:hover { border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.primary:hover { background: var(--accent-dark); }
.secondary { background: #f8fafc; }

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  background: #0f172a;
  color: #fff;
}

.topbar h1 { margin: 0; font-size: 1.35rem; }
.topbar p { margin: 0.25rem 0 0; color: #cbd5e1; }

.tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tab {
  color: #e2e8f0;
  border-color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.08);
}

.tab.active {
  background: #fff;
  color: #0f172a;
}

main { padding: 1rem; }

.view { display: none; gap: 1rem; }
.view.active { display: grid; grid-template-columns: 320px minmax(0, 1fr); }
.single-column.active { display: block; max-width: 1100px; margin: 0 auto; }

.sidebar { display: flex; flex-direction: column; gap: 1rem; }
.content-grid { display: grid; grid-template-rows: minmax(520px, 68vh) minmax(180px, 24vh); gap: 1rem; min-width: 0; }
.montage-grid { grid-template-rows: auto; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 1rem;
  min-width: 0;
}

.panel h2 { margin: 0 0 0.75rem; font-size: 1.05rem; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 0.75rem; }
.panel-head h2 { margin: 0; }
.panel-head.compact { margin-bottom: 0.5rem; }
.muted { color: var(--muted); margin: 0.15rem 0 0; }

select, input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  background: #fff;
}

.form-stack { display: grid; gap: 0.75rem; }
.form-stack label { display: grid; gap: 0.35rem; color: #344054; }

.tree { display: grid; gap: 0.4rem; }
.tree button {
  width: 100%;
  text-align: left;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
}
.tree button.active { border-color: var(--accent); background: #ecfdf3; }
.tree .child { padding-left: 1.2rem; }
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.15rem 0.45rem;
  background: #eef2f6;
  color: #344054;
  font-size: 0.78rem;
  white-space: nowrap;
}

.drawing-panel { overflow: hidden; }
.drawing-stage {
  position: relative;
  height: calc(100% - 3.5rem);
  min-height: 520px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}

.canvas-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding: 0.5rem;
  border-bottom: 1px solid var(--line);
  background: #f8fafc;
}

.canvas-btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  font-weight: 700;
}

.canvas-btn:hover { border-color: var(--accent); }
.canvas-help { color: var(--muted); font-size: 0.85rem; }

.canvas-viewer {
  position: relative;
  height: calc(100% - 3.05rem);
  min-height: 460px;
  overflow: hidden;
  background: #fff;
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.canvas-viewer.is-panning { cursor: grabbing; }
.drawing-canvas { display: block; width: 100%; height: 100%; }
.canvas-hotspot-layer { position: absolute; inset: 0; pointer-events: none; }
.canvas-hotspot-layer .hotspot { pointer-events: auto; }

.drawing-wrap {
  position: relative;
  width: min(100%, 1100px);
  margin: 0 auto;
}

.drawing-wrap img {
  display: block;
  width: 100%;
  height: auto;
}

.hotspot {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 2px solid #111827;
  background: rgba(255, 255, 255, 0.88);
  color: #111827;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0,0,0,0.16);
}
.hotspot:hover, .hotspot.active { background: #fef3c7; border-color: #b45309; }

.empty-state { color: var(--muted); padding: 2rem; text-align: center; }

.table-wrap { overflow: auto; max-height: 24vh; border: 1px solid var(--line); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { border-bottom: 1px solid var(--line); padding: 0.6rem 0.65rem; text-align: left; vertical-align: top; }
th { position: sticky; top: 0; background: #f8fafc; z-index: 1; }
tr.active { background: #fef3c7; }
.part-number { font-weight: 700; white-space: nowrap; }
.availability { font-size: 0.85rem; color: var(--muted); }
.availability.available { color: var(--ok); }
.availability.low { color: var(--warning); }
.availability.not_available { color: var(--danger); }

.machine-list { display: grid; gap: 0.5rem; max-height: 40vh; overflow: auto; }
.machine-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem;
  background: #fff;
  cursor: pointer;
}
.machine-card:hover, .machine-card.active { border-color: var(--accent); background: #ecfdf3; }
.machine-card strong { display: block; }
.machine-card span { color: var(--muted); font-size: 0.9rem; }

.checklist { display: grid; gap: 1rem; }
.job {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.job-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: #f8fafc;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line);
}
.job-head h3 { margin: 0; font-size: 1rem; }
.job-items { display: grid; }
.check-item {
  display: grid;
  grid-template-columns: 80px minmax(170px, 1fr) 120px 170px minmax(160px, 1fr);
  gap: 0.6rem;
  align-items: center;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--line);
}
.check-item:last-child { border-bottom: 0; }
.check-item.status-installed, .check-item.status-checked { background: #ecfdf3; }
.check-item.status-missing, .check-item.status-problem { background: #fef3f2; }
.check-item.status-changed { background: #fffaeb; }
.check-item small { color: var(--muted); display: block; margin-top: 0.2rem; }
.status-select { min-width: 150px; }
.qty-input { max-width: 110px; }
.comment-input { min-width: 150px; }

.search-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0.75rem; }
.search-results { display: grid; gap: 0.75rem; margin-top: 1rem; }
.result-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem;
}
.result-card h3 { margin: 0 0 0.25rem; }
.result-card p { margin: 0.2rem 0; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem 1.5rem;
  color: var(--muted);
}
.footer label { display: flex; align-items: center; gap: 0.5rem; }
.footer input { width: 220px; }

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  min-width: 240px;
  max-width: min(420px, calc(100vw - 2rem));
  padding: 0.8rem 1rem;
  border-radius: 12px;
  background: #111827;
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(0.5rem);
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
.toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 1050px) {
  .view.active { grid-template-columns: 1fr; }
  .content-grid { grid-template-rows: auto auto; }
  .drawing-stage { height: 480px; min-height: 480px; }
  .canvas-viewer { min-height: 420px; }
  .check-item { grid-template-columns: 1fr; }
  .topbar { align-items: start; flex-direction: column; }
}

/* Admin-Erweiterung */
.admin-view.active { display: grid; grid-template-columns: 320px minmax(0, 1fr); }
.admin-content { display: grid; gap: 1rem; min-width: 0; }
.admin-panel { display: none; }
.admin-panel.active { display: block; }
.admin-nav { display: grid; gap: 0.5rem; }
.admin-nav-btn { text-align: left; }
.admin-nav-btn.active { background: #0f766e; color: #fff; border-color: #0f766e; }
.admin-grid { display: grid; grid-template-columns: repeat(2, minmax(260px, 1fr)); gap: 1rem; }
.admin-card, .upload-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  background: #fff;
}
.admin-card h3 { margin: 0 0 0.5rem; }
.admin-card.wide { grid-column: 1 / -1; }
.two-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.admin-list { display: grid; gap: 0.5rem; margin-top: 1rem; }
.admin-list-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.hotspot-toolbar { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: end; margin-bottom: 1rem; }
.hotspot-toolbar label { min-width: 220px; }
.hotspot-editor-stage { min-height: 620px; }
.hotspot-editor-stage .canvas-viewer { cursor: crosshair; }
.hotspot-editor-stage .canvas-viewer.is-panning { cursor: grabbing; }
.hotspot.pending { background: #f79009; border-color: #fff; }
.code-output {
  white-space: pre-wrap;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 12px;
  padding: 1rem;
  min-height: 80px;
  overflow: auto;
}
@media (max-width: 900px) {
  .admin-view.active { grid-template-columns: 1fr; }
  .admin-grid { grid-template-columns: 1fr; }
  .two-cols { grid-template-columns: 1fr; }
}

/* Erweiterung: gefuehrte Montage */
.assembly-guide {
  margin-bottom: 1rem;
}
.guide-panel {
  border: 1px solid #d8e1ec;
  border-radius: 18px;
  padding: 1rem;
  background: #f8fbff;
}
.guide-step-list {
  display: grid;
  gap: 1rem;
  max-height: 52vh;
  overflow: auto;
  padding-right: .25rem;
}
.guide-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1rem;
  border: 1px solid #d9e2ee;
  border-left: 6px solid #94a3b8;
  border-radius: 16px;
  padding: 1rem;
  background: #fff;
}
.guide-step.status-in_progress { border-left-color: #2563eb; }
.guide-step.status-done,
.guide-step.status-approved { border-left-color: #0f766e; }
.guide-step.status-problem { border-left-color: #b42318; background: #fff8f6; }
.guide-step.status-qs_required { border-left-color: #b45309; }
.guide-step-title {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
}
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #102033;
  color: #fff;
  font-weight: 800;
}
.step-badges {
  margin-left: auto;
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.badge.warning { background: #fef3c7; color: #92400e; }
.badge.danger { background: #fee2e2; color: #991b1b; }
.step-instruction {
  margin: .8rem 0;
  line-height: 1.45;
  color: #1f2937;
}
.step-media-row {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin: .75rem 0;
}
.step-media {
  width: 180px;
  border: 1px solid #d8e1ec;
  border-radius: 12px;
  padding: .5rem;
  text-decoration: none;
  color: inherit;
  background: #f8fafc;
}
.step-media img,
.step-media video {
  width: 100%;
  max-height: 130px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
}
.step-media span {
  display: block;
  margin-top: .35rem;
  font-size: .85rem;
  color: #475569;
}
.guide-step details {
  margin-top: .6rem;
}
.guide-step summary {
  cursor: pointer;
  font-weight: 700;
}
.guide-step ul {
  margin: .5rem 0 0 1.2rem;
  padding: 0;
}
.guide-step-actions {
  display: grid;
  gap: .55rem;
  align-content: start;
}
.guide-step-actions select,
.guide-step-actions input,
.guide-step-actions textarea {
  width: 100%;
}
.file-mini {
  display: grid;
  gap: .35rem;
  font-size: .85rem;
  color: #475569;
}
.subpanel {
  margin-top: 1rem;
  background: #f8fafc;
}
.three-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
  align-items: end;
}
.step-admin-list {
  display: grid;
  gap: .5rem;
}
.step-admin-item {
  border-left: 4px solid #0f766e;
}

@media (max-width: 980px) {
  .guide-step {
    grid-template-columns: 1fr;
  }
  .three-cols {
    grid-template-columns: 1fr;
  }
}

/* v12: Abweichungen / Standardaenderungen */
.deviation-btn,
.mini {
  margin-top: 0.35rem;
  padding: 0.35rem 0.65rem;
  font-size: 0.85rem;
}
.deviation-note {
  margin-top: 0.45rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid #f59e0b;
  border-radius: 0.75rem;
  background: #fffbeb;
  color: #78350f;
  font-size: 0.9rem;
}
.actual-part {
  display: block;
  color: #b45309;
  font-weight: 700;
}
.catalog-change {
  align-items: flex-start;
  gap: 1rem;
}
.change-actions {
  display: grid;
  gap: 0.5rem;
  min-width: 220px;
}
.catalog-change.status-pending_review {
  border-left: 5px solid #f59e0b;
}
.catalog-change.status-approved {
  border-left: 5px solid #0ea5e9;
}
.catalog-change.status-applied {
  border-left: 5px solid #10b981;
}
.catalog-change.status-rejected {
  opacity: 0.65;
  border-left: 5px solid #64748b;
}

/* v13: Freigabestatus fuer auftragsspezifische Abweichungen */
.admin-subsection {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.admin-subsection h3 {
  margin: 0 0 .25rem;
}
.deviation-note-head {
  margin-bottom: .25rem;
}
.deviation-status-pending_review {
  border-color: #f59e0b;
  background: #fffbeb;
  color: #78350f;
}
.deviation-status-approved {
  border-color: #10b981;
  background: #ecfdf5;
  color: #064e3b;
}
.deviation-status-applied {
  border-color: #0ea5e9;
  background: #eff6ff;
  color: #0c4a6e;
}
.deviation-status-rejected {
  border-color: #ef4444;
  background: #fef2f2;
  color: #7f1d1d;
}
.deviation-status-draft,
.deviation-status-changed {
  border-color: #94a3b8;
  background: #f8fafc;
  color: #334155;
}
.deviation-approved-line {
  font-weight: 700;
}
.deviation-reason,
.deviation-approval-note {
  margin-top: .35rem;
}
.machine-deviation {
  align-items: flex-start;
}
.machine-deviation.status-pending_review {
  border-left: 5px solid #f59e0b;
}
.machine-deviation.status-approved {
  border-left: 5px solid #10b981;
  background: #f0fdf4;
}
.machine-deviation.status-applied {
  border-left: 5px solid #0ea5e9;
  background: #eff6ff;
}
.machine-deviation.status-rejected {
  border-left: 5px solid #ef4444;
  background: #fef2f2;
}

/* v15: Login und Rollenanzeige */
.user-box {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: .75rem;
  padding: .45rem .6rem;
  font-size: .9rem;
}
.user-box[hidden],
.tab[hidden],
.admin-nav-btn[hidden],
.admin-panel[hidden] {
  display: none !important;
}
.login-overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, .72);
  z-index: 9999;
  padding: 1rem;
}
.login-overlay.active {
  display: flex;
}
.login-card {
  width: min(420px, 100%);
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 24px 80px rgba(0,0,0,.24);
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}
.login-card h2 {
  margin: 0;
}
.login-card label {
  display: grid;
  gap: .35rem;
  font-weight: 700;
}
.login-card input {
  border: 1px solid var(--line);
  border-radius: .65rem;
  padding: .75rem .85rem;
  font: inherit;
}
.login-error {
  margin: 0;
  color: #b42318;
  font-weight: 700;
  min-height: 1.25rem;
}

/* v16: Benutzer-Popup */
.admin-list-item.clickable {
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}
.admin-list-item.clickable:hover {
  border-color: var(--accent);
  background: #ecfdf3;
  transform: translateY(-1px);
}
.admin-list-item .item-meta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.55);
}
.modal-backdrop[hidden] { display: none; }
.modal-card {
  width: min(720px, 100%);
  display: grid;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.28);
  padding: 1rem;
}
.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.75rem;
}
.modal-head h2 { margin: 0; }
.modal-close {
  width: 2.4rem;
  height: 2.4rem;
  padding: 0;
  font-size: 1.4rem;
  line-height: 1;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
}
.small { font-size: 0.9rem; }
@media (max-width: 700px) {
  .modal-actions { flex-direction: column-reverse; }
}

/* v17 Importassistent */
.import-wizard {
  display: grid;
  gap: 18px;
}

.wizard-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.wizard-step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  background: rgba(255,255,255,0.72);
  border-radius: 18px;
  color: #64748b;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.wizard-step span {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #e2e8f0;
  color: #334155;
  font-weight: 800;
}

.wizard-step.active {
  background: linear-gradient(135deg, #eef2ff, #ffffff);
  border-color: rgba(79, 70, 229, 0.35);
  box-shadow: 0 12px 35px rgba(79, 70, 229, 0.12);
  color: #111827;
  transform: translateY(-1px);
}

.wizard-step.active span,
.wizard-step.done span {
  background: #111827;
  color: white;
}

.wizard-step.done {
  color: #0f766e;
  background: rgba(240, 253, 250, 0.8);
}

.import-card,
.import-options-card,
.import-preview-panel,
.import-result-panel,
.import-log-panel {
  border: 1px solid rgba(148, 163, 184, 0.22);
  background: rgba(255,255,255,0.82);
  border-radius: 22px;
  padding: 18px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.06);
  animation: panelIn .22s ease both;
}

@keyframes panelIn {
  from { opacity: 0; transform: translateY(8px) scale(.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
  margin: 8px 0 14px;
}

.summary-card {
  padding: 14px;
  border-radius: 18px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.summary-card span {
  display: block;
  color: #64748b;
  font-size: .82rem;
}

.summary-card strong {
  display: block;
  font-size: 1.45rem;
  margin-top: 4px;
  color: #0f172a;
}

.import-message-list {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.message-card {
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid #e2e8f0;
  background: #f8fafc;
}

.message-card p {
  margin: 6px 0 0;
}

.message-card.ok {
  background: #ecfdf5;
  border-color: #bbf7d0;
  color: #065f46;
}

.message-card.warning {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
}

.message-card.error {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.import-options-card .button-row {
  margin-top: 12px;
}

.checkbox-line {
  display: flex !important;
  align-items: center;
  gap: 10px;
  min-height: 44px;
}

.checkbox-line input {
  width: auto !important;
}

.table-scroll {
  overflow: auto;
  border-radius: 18px;
  border: 1px solid #e2e8f0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #edf2f7;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: #f8fafc;
  color: #334155;
  font-size: .82rem;
  position: sticky;
  top: 0;
}

.data-table.compact td {
  font-size: .88rem;
}

.status-badge.danger {
  background: #fee2e2;
  color: #991b1b;
}

.status-badge.warning {
  background: #fef3c7;
  color: #92400e;
}

.status-badge.ok {
  background: #dcfce7;
  color: #166534;
}

@media (max-width: 780px) {
  .wizard-steps {
    grid-template-columns: 1fr 1fr;
  }
}

/* v18: Modern UI Upgrade - globale Oberflaeche */
:root {
  --bg: #eef3f8;
  --bg-soft: #f8fafc;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-solid: #ffffff;
  --line: #d9e2ee;
  --line-soft: rgba(148, 163, 184, 0.24);
  --text: #101828;
  --muted: #667085;
  --accent: #0f766e;
  --accent-dark: #0b5d58;
  --accent-soft: #dff7f3;
  --danger: #b42318;
  --warning: #b54708;
  --ok: #027a48;
  --info: #175cd3;
  --shadow: 0 18px 55px rgba(15, 23, 42, 0.10);
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.07);
  --radius: 20px;
  --radius-sm: 14px;
  --ease: cubic-bezier(.2,.8,.2,1);
}

* { scrollbar-width: thin; scrollbar-color: #cbd5e1 transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 999px; border: 3px solid transparent; background-clip: padding-box; }
*::-webkit-scrollbar-track { background: transparent; }

html { background: #0f172a; }
body {
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(20, 184, 166, 0.15), transparent 32rem),
    radial-gradient(circle at 85% 10%, rgba(59, 130, 246, 0.12), transparent 30rem),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
  color: var(--text);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(15,23,42,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(15,23,42,.035) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.25), transparent 55%);
}

button, input, select, textarea { transition: border-color .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), transform .18s var(--ease), opacity .18s var(--ease); }
button {
  min-height: 40px;
  border-color: var(--line);
  background: rgba(255,255,255,.9);
  color: #1d2939;
  box-shadow: 0 1px 2px rgba(16,24,40,.04);
}
button:hover:not(:disabled) { border-color: rgba(15, 118, 110, .42); transform: translateY(-1px); box-shadow: 0 10px 22px rgba(15, 23, 42, .08); }
button:active:not(:disabled) { transform: translateY(0); box-shadow: 0 3px 10px rgba(15, 23, 42, .08); }
.primary {
  border-color: transparent;
  background: linear-gradient(135deg, #0f766e 0%, #0ea5a3 100%);
  color: #fff;
  box-shadow: 0 12px 28px rgba(15, 118, 110, .22);
}
.primary:hover:not(:disabled) { background: linear-gradient(135deg, #0b5d58 0%, #0f766e 100%); }
.secondary { background: #f8fafc; }
.mini { min-height: 34px; }

select, input, textarea {
  border-color: var(--line);
  background: rgba(255,255,255,.9);
  color: var(--text);
  outline: none;
}
select:focus, input:focus, textarea:focus {
  border-color: rgba(15, 118, 110, .68);
  box-shadow: 0 0 0 4px rgba(20, 184, 166, .13);
  background: #fff;
}
textarea { min-height: 86px; resize: vertical; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  align-items: center;
  padding: 1rem clamp(1rem, 2vw, 2rem);
  border-bottom: 1px solid rgba(255,255,255,.14);
  background: linear-gradient(135deg, rgba(15,23,42,.96), rgba(17, 94, 89, .93));
  backdrop-filter: blur(14px);
  box-shadow: 0 16px 45px rgba(15, 23, 42, .24);
}
.topbar h1 { letter-spacing: -.03em; font-size: 1.45rem; }
.topbar p { font-size: .9rem; }
.tabs {
  padding: .22rem;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
}
.tab {
  border-radius: 999px;
  border-color: transparent;
  background: transparent;
  color: #dbe7f3;
  min-height: 38px;
  padding: .45rem .8rem;
}
.tab:hover:not(:disabled) { background: rgba(255,255,255,.12); color: #fff; transform: none; box-shadow: none; }
.tab.active { background: #fff; color: #0f172a; box-shadow: 0 8px 18px rgba(0,0,0,.18); }
.user-box { border-radius: 999px; backdrop-filter: blur(8px); }

main { position: relative; padding: clamp(.9rem, 2vw, 1.4rem); }
.view.active, .single-column.active, .admin-panel.active { animation: viewIn .28s var(--ease) both; }
@keyframes viewIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.panel, .admin-card, .upload-card, .guide-panel, .job, .result-card, .machine-card, .import-card, .import-options-card, .import-preview-panel, .import-result-panel, .import-log-panel {
  border-color: var(--line-soft);
  background: var(--panel);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}
.panel { padding: 1.05rem; }
.panel h2, .panel h3 { letter-spacing: -.02em; }
.panel-head { padding-bottom: .15rem; }
.panel-head h2 { font-size: 1.12rem; }
.muted { color: #64748b; }

.sidebar { gap: 1rem; }
.content-grid { grid-template-rows: minmax(640px, 72vh) minmax(140px, 18vh); }
.table-wrap { max-height: 18vh; background: rgba(255,255,255,.65); }
.drawing-stage { min-height: 620px; border-style: solid; background: linear-gradient(135deg, #fff 0%, #f8fafc 100%); }
.canvas-toolbar { background: rgba(248, 250, 252, .88); backdrop-filter: blur(8px); }
.canvas-btn { min-height: 34px; }
.canvas-viewer { min-height: 555px; background: linear-gradient(180deg, #fff, #f9fbfd); }
.hotspot { transition: transform .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease); }
.hotspot:hover, .hotspot.active { transform: translate(-50%, -50%) scale(1.08); box-shadow: 0 12px 24px rgba(180, 83, 9, .22); }

.tree button, .admin-nav-btn, .machine-card, .admin-list-item {
  border-radius: 15px;
  transition: transform .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease);
}
.tree button:hover, .admin-nav-btn:hover, .machine-card:hover, .admin-list-item.clickable:hover { transform: translateY(-1px); }
.tree button.active, .machine-card.active { border-color: rgba(15,118,110,.38); background: linear-gradient(135deg, #ecfdf5, #f8fffd); box-shadow: 0 12px 24px rgba(15, 118, 110, .10); }
.admin-nav-btn.active { background: linear-gradient(135deg, #0f766e, #0ea5a3); color: #fff; border-color: transparent; box-shadow: 0 14px 30px rgba(15,118,110,.20); }

.badge {
  border: 1px solid rgba(148, 163, 184, .28);
  background: #f1f5f9;
  color: #334155;
  font-weight: 700;
  letter-spacing: -.01em;
}
.badge.warning { border-color: #fde68a; }
.badge.danger { border-color: #fecaca; }
.availability.available, .deviation-status-approved { color: #047857; }

th { background: rgba(248,250,252,.96); color: #475467; font-size: .82rem; text-transform: uppercase; letter-spacing: .035em; }
td { background: rgba(255,255,255,.78); }
tr { transition: background .18s var(--ease); }
tr:hover td { background: #f8fafc; }
tr.active td { background: #fffbeb; }

.check-item {
  border-bottom-color: rgba(148,163,184,.20);
  transition: background .18s var(--ease), transform .18s var(--ease);
}
.check-item:hover { background: #f8fafc; }
.job-head { background: linear-gradient(135deg, #f8fafc, #fff); }
.guide-step { box-shadow: 0 8px 20px rgba(15,23,42,.05); transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease); }
.guide-step:hover { transform: translateY(-1px); box-shadow: 0 16px 34px rgba(15,23,42,.08); }
.step-number { background: linear-gradient(135deg, #0f172a, #334155); }

/* Moderne Modals und Login */
.modal-backdrop, .login-overlay {
  background: rgba(15, 23, 42, .58);
  backdrop-filter: blur(10px);
}
.modal-backdrop:not([hidden]) { animation: backdropIn .22s var(--ease) both; }
.modal-card, .login-card {
  border-radius: 24px;
  border-color: rgba(255,255,255,.65);
  background: rgba(255,255,255,.96);
  box-shadow: 0 30px 90px rgba(15, 23, 42, .32);
}
.modal-backdrop:not([hidden]) .modal-card { animation: modalIn .28s var(--ease) both; }
.login-overlay.active .login-card { animation: modalIn .28s var(--ease) both; }
@keyframes backdropIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes modalIn { from { opacity: 0; transform: translateY(14px) scale(.97); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal-head { border-bottom-color: rgba(148,163,184,.20); }
.modal-actions { border-top-color: rgba(148,163,184,.20); }
.modal-close { border-radius: 999px; }

/* Toasts */
.toast {
  right: 1.25rem;
  bottom: 1.25rem;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 18px;
  background: rgba(15, 23, 42, .94);
  backdrop-filter: blur(10px);
  box-shadow: 0 22px 60px rgba(15,23,42,.25);
  transform: translateY(12px) scale(.98);
  transition: opacity .22s var(--ease), transform .22s var(--ease);
}
.toast.show { transform: translateY(0) scale(1); }
.toast.error { background: rgba(180,35,24,.96) !important; }
.toast.success { background: rgba(15,118,110,.96) !important; }

/* Importassistent modernisiert */
.import-wizard { gap: 20px; }
.wizard-steps { position: relative; gap: 12px; }
.wizard-step {
  position: relative;
  overflow: hidden;
  min-height: 62px;
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(8px);
}
.wizard-step::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20,184,166,.16), transparent);
  opacity: 0;
  transition: opacity .18s var(--ease);
}
.wizard-step.active::after { opacity: 1; }
.wizard-step strong { position: relative; z-index: 1; }
.wizard-step span { position: relative; z-index: 1; box-shadow: inset 0 0 0 1px rgba(255,255,255,.3); }
.import-card, .import-options-card, .import-preview-panel, .import-result-panel, .import-log-panel { animation: panelInV18 .28s var(--ease) both; }
@keyframes panelInV18 { from { opacity: 0; transform: translateY(14px) scale(.985); } to { opacity: 1; transform: translateY(0) scale(1); } }
.summary-card { background: linear-gradient(135deg, #fff, #f8fafc); box-shadow: 0 8px 20px rgba(15,23,42,.04); }
.message-card { box-shadow: 0 8px 20px rgba(15,23,42,.04); }
.message-card.ok { background: linear-gradient(135deg, #ecfdf5, #ffffff); }
.message-card.warning { background: linear-gradient(135deg, #fffbeb, #ffffff); }
.message-card.error { background: linear-gradient(135deg, #fef2f2, #ffffff); }

/* Kleine Utility-Verbesserungen */
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.button-row { display: flex; flex-wrap: wrap; gap: .65rem; align-items: center; }
.empty-state { border-radius: 18px; color: #64748b; }
.code-output { border: 1px solid rgba(255,255,255,.08); box-shadow: inset 0 0 0 1px rgba(255,255,255,.03); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .001ms !important; }
}

@media (max-width: 1050px) {
  .topbar { align-items: stretch; }
  .tabs { border-radius: 18px; }
  .tab { flex: 1 1 auto; }
  .content-grid { grid-template-rows: auto auto; }
  .drawing-stage { height: 560px; min-height: 560px; }
  .canvas-viewer { min-height: 500px; }
}
@media (max-width: 760px) {
  main { padding: .75rem; }
  .panel { border-radius: 16px; }
  .wizard-steps, .form-row { grid-template-columns: 1fr; }
  .content-grid { gap: .75rem; }
  .drawing-stage { height: 480px; min-height: 480px; }
  .canvas-viewer { min-height: 420px; }
}
.modal-backdrop.closing { animation: backdropOut .16s var(--ease) both; }
.modal-backdrop.closing .modal-card { animation: modalOut .16s var(--ease) both; }
@keyframes backdropOut { from { opacity: 1; } to { opacity: 0; } }
@keyframes modalOut { from { opacity: 1; transform: translateY(0) scale(1); } to { opacity: 0; transform: translateY(10px) scale(.98); } }
button.is-loading { opacity: .78; cursor: wait; }
button.is-loading::after { content: ''; display: inline-block; width: .8em; height: .8em; margin-left: .55em; border: 2px solid rgba(255,255,255,.55); border-top-color: transparent; border-radius: 999px; vertical-align: -.12em; animation: spin .75s linear infinite; }
.secondary.is-loading::after, button:not(.primary).is-loading::after { border-color: rgba(15,23,42,.35); border-top-color: transparent; }
@keyframes spin { to { transform: rotate(360deg); } }


/* v19: Live-Status und sanfte Echtzeit-Hervorhebung */
.montage-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.live-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(100, 116, 139, 0.10);
  color: var(--muted, #64748b);
  font-size: 0.82rem;
  font-weight: 700;
  border: 1px solid rgba(148, 163, 184, 0.28);
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.live-status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.55;
}

.live-status.live-active {
  color: #047857;
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.28);
}

.live-status.live-active::before {
  opacity: 1;
  animation: livePulse 1.8s ease-in-out infinite;
}

.check-item.live-flash {
  animation: liveFlash 2.4s ease-out;
  border-color: rgba(16, 185, 129, 0.75) !important;
}

@keyframes livePulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.35); }
  50% { transform: scale(1.2); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
}

@keyframes liveFlash {
  0% { background: rgba(16, 185, 129, 0.24); transform: translateY(-1px); }
  100% { background: transparent; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .live-status.live-active::before,
  .check-item.live-flash {
    animation: none !important;
  }
}

/* v21: Layout- und Panel-Fix
   Ziel: Panels unten sauber abschliessen, Listen in Karten kapseln und herausragende Inhalte vermeiden. */
html,
body {
  background: var(--bg);
}

body {
  overflow-x: hidden;
}

main {
  min-height: calc(100vh - 158px);
}

.view.active,
.admin-view.active {
  align-items: start;
}

.panel,
.admin-card,
.upload-card,
.job,
.guide-panel,
.result-card,
.machine-card,
.import-card,
.import-options-card,
.import-preview-panel,
.import-result-panel,
.import-log-panel {
  background-clip: padding-box;
}

/* Karten mit Listen/Tabellen bekommen einen vollstaendigen Innenhintergrund. */
.table-panel,
.montage-grid > .panel,
.sidebar > .panel,
.admin-panel {
  overflow: hidden;
}

.table-panel,
.montage-grid > .panel {
  display: flex;
  flex-direction: column;
}

.table-panel > .panel-head,
.montage-grid > .panel > .panel-head {
  flex: 0 0 auto;
}

.table-panel .table-wrap {
  flex: 1 1 auto;
  min-height: 0;
}

/* Montageansicht: Header, Anleitung und Checkliste optisch als ein geschlossenes Panel. */
.montage-grid {
  grid-template-rows: auto;
  align-items: start;
}

.montage-grid > .panel {
  padding: 0;
  background: var(--panel-solid);
}

.montage-grid > .panel > .panel-head {
  margin: 0;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.22);
  background: linear-gradient(135deg, rgba(248, 250, 252, .96), rgba(255, 255, 255, .96));
}

.assembly-guide {
  margin: 0;
  padding: 1rem 1.15rem 0;
  background: var(--panel-solid);
}

.assembly-guide:empty {
  display: none;
}

.checklist {
  gap: 1rem;
  padding: 1rem 1.15rem 1.15rem;
  background: var(--panel-solid);
  border-radius: 0 0 var(--radius) var(--radius);
}

.checklist:empty {
  min-height: 220px;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.job {
  background: var(--panel-solid);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.055);
}

.job-items {
  background: var(--panel-solid);
}

.check-item {
  position: relative;
  background: var(--panel-solid);
}

.check-item:hover {
  background: #f8fafc;
}

.check-item.status-installed,
.check-item.status-checked {
  background: #ecfdf3;
}

.check-item.status-missing,
.check-item.status-problem {
  background: #fff5f3;
}

.check-item.status-changed {
  background: #fffbeb;
}

.check-item:last-child {
  border-bottom: 0;
}

/* Linke Seriennummernliste: Innenflaeche geschlossen halten und sauber scrollen. */
.machine-list {
  min-height: 96px;
  padding: .25rem;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(248,250,252,.72), rgba(255,255,255,.72));
  max-height: min(42vh, 520px);
}

.machine-list:empty::before {
  content: 'Noch keine Seriennummern vorhanden.';
  display: block;
  padding: .75rem;
  color: var(--muted);
}

.machine-card {
  background: rgba(255,255,255,.9);
}

/* Admin- und Ergebnislisten: nicht mehr optisch aus der Karte laufen lassen. */
.admin-list,
.search-results,
.step-admin-list {
  min-height: 0;
}

.admin-list-item,
.result-card,
.step-admin-item {
  background: rgba(255,255,255,.92);
}

/* Tabellen/Scrollbereiche sauber kapseln. */
.table-wrap,
.table-scroll {
  background: var(--panel-solid);
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

.table-wrap table,
.table-scroll table {
  background: var(--panel-solid);
}

/* Footer nicht mehr als dunkler Streifen unter herausragenden Listen wirken lassen. */
.footer {
  position: relative;
  z-index: 1;
  margin: 0 clamp(.9rem, 2vw, 1.4rem) 1rem;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 18px;
  background: rgba(255,255,255,.72);
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 28px rgba(15,23,42,.055);
}

/* Mehr Luft am Seitenende, damit lange Listen sauber auslaufen. */
.view.active {
  padding-bottom: 1rem;
}

/* Mobile: Panels bleiben geschlossen, aber ohne zu grosse Hoehen. */
@media (max-width: 1050px) {
  main { min-height: auto; }
  .montage-grid > .panel > .panel-head {
    align-items: flex-start;
    flex-direction: column;
  }
  .montage-actions {
    justify-content: flex-start;
  }
  .machine-list {
    max-height: 320px;
  }
}

@media (max-width: 760px) {
  .checklist,
  .assembly-guide,
  .montage-grid > .panel > .panel-head {
    padding-left: .85rem;
    padding-right: .85rem;
  }
  .footer {
    margin: 0 .75rem .75rem;
    flex-direction: column;
    align-items: stretch;
  }
  .footer input {
    width: 100%;
  }
}