/* ============================================================
   style.css – SimEngine Web-GUI Dark Theme
   Sprint 1: Grundlayout (Toolbar, Canvas, Log-Panel)
   ============================================================ */

/* ── CSS-Variablen (Design-Tokens) ───────────────────────────────────── */
:root {
  --bg-app:       #0f172a;   /* Hintergrund der gesamten App */
  --bg-panel:     #1e293b;   /* Panels, Sidebar, Log */
  --bg-canvas:    #111827;   /* Zeichenfläche */
  --bg-toolbar:   #1e293b;   /* Toolbar */
  --bg-hover:     #334155;   /* Hover-Zustand für Buttons */
  --bg-active:    #2563eb;   /* Aktiver Button / Auswahl */

  --border:       #334155;   /* Rand zwischen Panels */
  --border-light: #475569;

  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-accent:    #60a5fa;

  /* Verbindungslinien-Farben (gleich wie in canvas.js) */
  --color-thermo:   #3b82f6;  /* Blau  – thermodynamisch */
  --color-mech:     #6b7280;  /* Grau  – Welle */
  --color-regelung: #10b981;  /* Grün  – Regelung */

  --font-ui:    'Segoe UI', system-ui, sans-serif;
  --font-mono:  'Consolas', 'Courier New', monospace;
  --radius:     6px;
  --toolbar-h:  48px;
  --log-h:      140px;
  --panel-w:    280px;

  /* Sprint 2: Alias-Variablen für Panels (deckend, kein transparent!) */
  --surface-1: #1e293b;   /* = --bg-panel (100% opak) */
  --surface-2: #0f172a;   /* dunkler als surface-1 (100% opak) */
}

/* ── Reset & Basis ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  font-family: var(--font-ui);
  background: var(--bg-app);
  color: var(--text-primary);
  font-size: 13px;
}

/* ── App-Layout (CSS Grid) ───────────────────────────────────────────── */
#app {
  display: grid;
  grid-template-rows: auto auto 1fr var(--log-h);
  grid-template-columns: 1fr;
  height: 100vh;
  height: 100dvh;
}

/* ── Toolbar ─────────────────────────────────────────────────────────── */
#toolbar {
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px 12px;
  min-height: var(--toolbar-h);
  user-select: none;
  z-index: 40;
}

#toolbar .app-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-right: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

#toolbar .app-title span.version {
  font-size: 10px;
  color: var(--text-secondary);
  font-weight: normal;
}

#toolbar .sep {
  width: 1px;
  height: 24px;
  background: var(--border-light);
  margin: 0 6px;
}

/* Toolbar-Buttons */
.tb-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  transition: background 0.15s, color 0.15s;
}
.tb-btn:hover  { background: var(--bg-hover);  color: var(--text-primary); }
.tb-btn:active { background: var(--bg-active); color: #fff; }
.tb-btn.primary {
  background: var(--bg-active);
  color: #fff;
}
.tb-btn.primary:hover  { background: #1d4ed8; }
.tb-btn svg { flex-shrink: 0; }

/* Spacer in der Toolbar */
.tb-spacer { flex: 1; }

/* ── Öffentliche Beta-Leiste ─────────────────────────────────────────── */
#beta-banner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 10px;
  padding: 6px 14px;
  background: #422006;
  border-bottom: 1px solid #b45309;
  color: #fde68a;
  font-size: 12px;
  line-height: 1.35;
}
#beta-banner strong {
  color: #fbbf24;
  font-weight: 650;
  letter-spacing: 0.01em;
}
#beta-banner .beta-sep { color: #d97706; }
#beta-banner .beta-contact { margin-left: auto; }
#beta-banner a {
  color: #93c5fd;
  text-decoration: none;
}
#beta-banner a:hover { text-decoration: underline; color: #bfdbfe; }
#beta-banner .beta-name-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
#beta-banner #beta-user-label {
  width: 140px;
  max-width: 28vw;
  background: #1c0f05;
  border: 1px solid #b45309;
  color: #fde68a;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
}
#beta-banner #beta-user-label:focus {
  outline: 1px solid #fbbf24;
  outline-offset: 1px;
}
#beta-banner .beta-sid code {
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  background: #1c0f05;
  padding: 1px 5px;
  border-radius: 3px;
  letter-spacing: 0.04em;
}
#beta-banner .beta-privacy {
  flex-basis: 100%;
  font-size: 11px;
  color: #fbbf24;
  opacity: 0.88;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
#beta-banner #btn-disclaimer-ack {
  flex-shrink: 0;
  background: #b45309;
  color: #fffbeb;
  border: 1px solid #fbbf24;
  border-radius: 3px;
  padding: 2px 10px;
  font-size: 11px;
  cursor: pointer;
  line-height: 1.3;
}
#beta-banner #btn-disclaimer-ack:hover {
  background: #d97706;
}
#beta-banner.disclaimer-acked {
  flex-wrap: nowrap;
  max-height: calc(1.35em + 12px);
  overflow: hidden;
}
#beta-banner.disclaimer-acked .beta-privacy {
  display: none;
}

/* ── Hauptbereich (Sidebar + Canvas + Properties) ─────────────────────── */
#main {
  display: flex;
  overflow: hidden;
  position: relative;
  min-height: 0;
}

/* Sidebar (Sprint 3: Bauteilkasten) */
#sidebar {
  width: var(--panel-w);
  min-width: 160px;
  max-width: 400px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.2s;
}

/* Bug #3: Sidebar kollabiert auf schmale Leiste – Expand-Button bleibt sichtbar */
#sidebar.collapsed {
  width: 36px;
  min-width: 36px;
  overflow: hidden;
}
/* Im kollabierten Zustand: nur der Collapse-Button sichtbar, Rest ausgeblendet */
#sidebar.collapsed .panel-header-title,
#sidebar.collapsed .toolbox-search,
#sidebar.collapsed .toolbox-groups {
  display: none;
}
/* Collapse-Button dreht Richtung wenn eingeklappt */
#sidebar.collapsed .panel-header {
  justify-content: center;
  padding: 10px 4px;
}


.panel-header {
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Zeichenfläche (Cytoscape) */
#canvas-container {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  position: relative;
  background: var(--bg-canvas);
  overflow: hidden;
}

#cy {
  width: 100%;
  height: 100%;
}

/* Overlay für Drag-Over-Zustand */
#canvas-container.drag-over::after {
  content: 'Bauteil hier ablegen';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.12);
  border: 2px dashed var(--bg-active);
  font-size: 16px;
  color: var(--text-accent);
  pointer-events: none;
}

/* Properties-Panel (Sprint 3) */
#properties {
  width: var(--panel-w);
  min-width: 0;
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition: width 0.2s;
}
#properties.collapsed {
  width: 36px;
  min-width: 36px;
  overflow: hidden;
}
#properties.collapsed .tab-btn,
#properties.collapsed .tab-panel {
  display: none;
}
#properties.collapsed .tab-header {
  justify-content: center;
  padding: 8px 2px;
  border-bottom: none;
}

/* ── Log-Panel ───────────────────────────────────────────────────────── */
#log-panel {
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#log-panel .panel-header {
  flex-shrink: 0;
}

#log-output {
  flex: 1;
  overflow-y: auto;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.7;
}

#log-output .log-info    { color: var(--text-secondary); }
#log-output .log-ok      { color: #4ade80; }
#log-output .log-warn    { color: #fbbf24; }
#log-output .log-error   { color: #f87171; }
#log-output .log-time    { color: #475569; margin-right: 8px; }

/* ── Upload-Overlay (wird gezeigt wenn kein Schaltbild geladen) ─────── */
#upload-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: var(--bg-canvas);
  z-index: 10;
  color: var(--text-secondary);
}

#upload-overlay.hidden { display: none; }

#upload-overlay .hero-icon {
  font-size: 48px;
  opacity: 0.3;
}

#upload-overlay h2 {
  font-size: 18px;
  color: var(--text-primary);
  font-weight: 600;
}

#upload-overlay p {
  font-size: 13px;
  max-width: 360px;
  text-align: center;
  line-height: 1.6;
}

#upload-overlay label.upload-btn,
#upload-overlay button.upload-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-active);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
  transition: background 0.15s;
}
#upload-overlay label.upload-btn:hover,
#upload-overlay button.upload-btn:hover { background: #1d4ed8; }

/* Drag-Over-Zustand des Upload-Overlays */
#upload-overlay.drag-active {
  background: rgba(37, 99, 235, 0.08);
  outline: 2px dashed var(--bg-active);
  outline-offset: -12px;
}

/* ── Beispieldaten-Bereich im Upload-Overlay ────────────────────────────── */
/* Zwei Aktionen (Datei öffnen + Beispiel laden) nebeneinander */
#upload-overlay .upload-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Basis-Upload-Button: primär (blau) → bereits als label.upload-btn definiert */
/* Sekundär-Button: umrandeter Ghost-Button */
#upload-overlay .upload-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: transparent;
  color: var(--text-accent);
  border: 1px solid #3b82f6;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
  transition: background 0.15s, color 0.15s;
}
#upload-overlay .upload-btn-secondary:hover {
  background: rgba(59, 130, 246, 0.12);
  color: var(--text-primary);
}
#upload-overlay .example-caret {
  margin-left: 2px;
  transition: transform 0.2s;
}
#upload-overlay .upload-btn-secondary[aria-expanded="true"] .example-caret {
  transform: rotate(180deg);
}

/* Dropdown-Wrapper: relativ positioniert für absolute Positionierung des Menüs */
#upload-overlay .upload-beispiel-wrap {
  position: relative;
}

/* Beispiel-Dropdown-Menü */
#upload-overlay .beispiel-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 180px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  padding: 4px;
  list-style: none;
  z-index: 20;
}

.beispiel-menu-item {
  padding: 9px 14px;
  border-radius: 5px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.15s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.beispiel-menu-item::before {
  content: '📄';
  font-size: 14px;
}
.beispiel-menu-item:hover {
  background: var(--bg-active);
  color: #fff;
}

.beispiel-menu-loading {
  padding: 9px 14px;
  font-size: 12px;
  color: var(--text-secondary);
}



/* ── Spinner (für Ladezustände) ────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Scrollbar (WebKit) ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #64748b; }

/* ═══════════════════════════════════════════════════════════════════════════
   SPRINT 2 – Berechnung + Diagramme
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Toolbar-Dropdown ─────────────────────────────────────────────────────── */
.tb-dropdown { position: relative; display: inline-flex; }

.tb-dropdown .caret {
  margin-left: 2px;
  transition: transform 0.2s;
  display: inline-block;
}
.tb-dropdown.open .caret { transform: rotate(180deg); }
/* Offener Button: deckende Hintergrundfarbe, kein Durchscheinen */
.tb-dropdown.open .tb-btn { background: #334155; color: var(--text-primary); }

.tb-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 220px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  padding: 4px;
  z-index: 9000;
  list-style: none;
  margin: 0;
}
.tb-dropdown.open .tb-dropdown-menu { display: block; }

.tb-dropdown-menu li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 5px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.15s;
}
.tb-dropdown-menu li:hover:not(.disabled) { background: var(--surface-2); }
.tb-dropdown-menu li.disabled {
  color: var(--text-secondary);
  cursor: default;
}
.badge {
  background: var(--surface-2);
  color: var(--text-secondary);
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 4px;
  margin-left: auto;
}

/* ── Spinner ──────────────────────────────────────────────────────────────── */
.spinner { display: flex; align-items: center; padding: 0 4px; }
.spinner-ring {
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.spinner-ring.large { width: 36px; height: 36px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Projektname ──────────────────────────────────────────────────────────── */
.project-label {
  color: var(--text-secondary);
  font-size: 12px;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Tab-Panel (rechte Seitenleiste) ─────────────────────────────────────── */
.tab-header {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: var(--surface-1);
}
.tab-header .icon-btn { flex-shrink: 0; }
.tab-btn {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 12px;
  padding: 8px 6px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: #60a5fa;
  border-bottom-color: #3b82f6;
  font-weight: 600;
}
.tab-panel { display: none; flex: 1; overflow-y: auto; }
.tab-panel.active { display: flex; flex-direction: column; }

.panel-empty-hint {
  padding: 16px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.6;
}
.badge-inline {
  background: var(--surface-2);
  color: var(--text-secondary);
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 4px;
}

/* ── Ergebnis-Panel ──────────────────────────────────────────────────────── */
.results-status {
  padding: 10px 12px;
  font-size: 12px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-1);
  line-height: 1.5;
}
.results-status.ok    { color: #4ade80; }
.results-status.error { color: #f87171; }

.results-table-wrap { overflow-x: auto; }
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}
.results-table th {
  background: var(--surface-2);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 5px 6px;
  text-align: right;
  white-space: nowrap;
  position: sticky;
  top: 0;
}
.results-table th:first-child { text-align: left; }
.results-table td {
  padding: 4px 6px;
  border-bottom: 1px solid var(--border);
  text-align: right;
  color: var(--text-primary);
  font-family: 'Consolas', monospace;
}
.results-table td:first-child {
  text-align: left;
  color: var(--text-secondary);
  font-family: inherit;
}
.results-table tr:hover td { background: rgba(255,255,255,0.03); }

/* ── Edge-Tooltip ────────────────────────────────────────────────────────── */
.edge-tooltip {
  position: absolute;
  z-index: 8000;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  min-width: 200px;
  overflow: hidden;
  pointer-events: all;
}
.edge-tooltip-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 10px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}
.edge-tooltip-header button {
  background: none; border: none;
  color: var(--text-secondary);
  cursor: pointer; font-size: 12px;
  padding: 0; line-height: 1;
}
.edge-tooltip-header button:hover { color: var(--text-primary); }
.edge-tooltip-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  padding: 4px;
}
.edge-tooltip-table td {
  padding: 4px 10px;
  color: var(--text-primary);
}
.edge-tooltip-table td:first-child { color: var(--text-secondary); }
.edge-tooltip-table td:nth-child(2) { font-family: Consolas, monospace; text-align: right; }
.edge-tooltip-table td:last-child { color: var(--text-secondary); font-size: 11px; }

/* Stoff-Badge im Tooltip (erste Zeile) */
.et-stoff-row td { padding: 5px 10px 4px; background: rgba(99,179,237,0.08); border-bottom: 1px solid var(--border); }
.et-stoff-badge {
  font-size: 11px;
  font-family: Consolas, monospace;
  color: #63b3ed;
  letter-spacing: 0.02em;
  white-space: normal;
  word-break: break-word;
}

/* Stoff-Badge im Eigenschaften-Panel (Kanten) */
.prop-stoff-badge {
  margin: 0 0 6px 0;
  padding: 5px 10px;
  background: rgba(99,179,237,0.07);
  border-left: 3px solid #63b3ed;
  border-radius: 4px;
  font-size: 11.5px;
  font-family: Consolas, monospace;
  color: #90cdf4;
  word-break: break-word;
}
.prop-stoff-sep { color: var(--text-secondary); font-family: inherit; }

/* ── Diagramm-Modal ──────────────────────────────────────────────────────── */
.diag-modal {
  position: fixed;
  top: 60px; left: 50%;
  transform: translateX(-50%);
  width: min(90vw, 1000px);
  height: min(80vh, 720px);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.6);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  resize: both;
}

.diag-titlebar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: #1e293b;
  cursor: move;
  user-select: none;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}
.diag-titlebar-left {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--text-primary);
}
.diag-titlebar-right { display: flex; gap: 6px; }

.diag-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.diag-type-tabs { display: flex; gap: 2px; }
.diag-type-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text-secondary);
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.diag-type-btn:hover { color: var(--text-primary); border-color: #475569; }
.diag-type-btn.active {
  background: #1d4ed8;
  border-color: #2563eb;
  color: #fff;
  font-weight: 600;
}
.diag-sep {
  width: 1px; height: 20px;
  background: var(--border);
  margin: 0 4px;
}
.diag-label {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}
.diag-select {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text-primary);
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
}
.diag-check-label {
  display: flex; align-items: center; gap: 5px;
  font-size: 12px; color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
}
.diag-check-label input { cursor: pointer; }

.diag-btn {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text-secondary);
  padding: 4px 8px;
  cursor: pointer;
  display: flex; align-items: center; gap: 4px;
  font-size: 12px;
  transition: all 0.15s;
}
.diag-btn:hover { color: var(--text-primary); border-color: #475569; }
.diag-reload { margin-left: auto; }
.diag-close {
  background: none;
  border-color: transparent;
  font-size: 14px;
  font-weight: bold;
}
.diag-close:hover { background: #7f1d1d; border-color: transparent; color: #fff; }

.diag-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #fff;
  position: relative;
}

.diag-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: #64748b;
  font-size: 13px;
}

.diag-error {
  padding: 20px;
  color: #f87171;
  font-size: 13px;
  text-align: center;
  background: rgba(239,68,68,0.1);
  border-radius: 6px;
  max-width: 400px;
}

.diag-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}

/* ── Log-Panel ergänzt ────────────────────────────────────────────────────── */
.log-clear-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 11px;
}
.log-clear-btn:hover { color: var(--text-primary); }

/* ── Confirm-Modal (unverändert von S1, Style ergänzt) ───────────────────── */
.confirm-modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 20000;
}
.confirm-box {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  max-width: 380px;
  text-align: center;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
}
.confirm-box p {
  margin: 0 0 18px;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.5;
}
.confirm-actions { display: flex; gap: 10px; justify-content: center; }

/* ═══════════════════════════════════════════════════════════════════════════
   SPRINT 3 – Eigenschaften, Linienkreuz, Raster, Toolbox
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Toggle-Buttons in der Toolbar ──────────────────────────────────────────── */
.tb-toggle {
  position: relative;
}
.tb-toggle.active {
  background: rgba(37, 99, 235, 0.25);
  color: #60a5fa;
  border: 1px solid #1d4ed8;
}
.tb-toggle.active:hover { background: rgba(37, 99, 235, 0.35); }

/* Icon-Button (kleiner, kein Label) */
.icon-btn {
  background: none; border: none;
  color: var(--text-secondary);
  font-size: 14px; cursor: pointer;
  padding: 2px 5px;
  border-radius: 3px;
  line-height: 1;
}
.icon-btn:hover { color: var(--text-primary); background: var(--bg-hover); }

/* ── Hintergrundraster (PaintGrid) ────────────────────────────────────────── */
/* Ref: Zeichenflaeche.pas – PaintGrid, Master.pas – PixelRaster */
#canvas-container.grid-active #cy {
  background-image: radial-gradient(circle, #475569 1.2px, transparent 1.2px);
  background-size: var(--grid-size, 20px) var(--grid-size, 20px);
  background-position: 0 0;
}

/* ── Eigenschaften-Tab ────────────────────────────────────────────────────── */
.prop-header {
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  position: sticky; top: 0; z-index: 1;
}
.prop-title {
  display: flex; align-items: center; gap: 7px;
  font-size: 13px; font-weight: 600; color: var(--text-primary);
  margin-bottom: 5px;
}
.prop-cat-dot {
  width: 8px; height: 8px; border-radius: 50%;
  flex-shrink: 0;
}
.prop-meta { display: flex; gap: 5px; flex-wrap: wrap; }
.prop-chip {
  background: #1e3a5f; color: #60a5fa;
  font-size: 10px; padding: 1px 6px;
  border-radius: 10px; font-weight: 600;
}
.prop-chip-secondary {
  background: var(--surface-2); color: var(--text-secondary);
}
.prop-section-title {
  padding: 6px 12px 3px;
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  margin-top: 4px;
}
.prop-table {
  width: 100%; border-collapse: collapse;
  font-size: 12px;
}
.prop-table tr:hover td { background: rgba(255,255,255,0.03); }
.prop-name {
  padding: 3px 8px 3px 12px;
  color: var(--text-secondary);
  width: 50%;
}
.prop-value {
  padding: 3px 4px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  text-align: right;
  white-space: nowrap;
}
.prop-unit {
  padding: 3px 10px 3px 4px;
  color: var(--text-secondary);
  font-size: 10px;
  white-space: nowrap;
}
.prop-hint {
  padding: 12px 14px;
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.6;
}

/* Editierbare Eigenschaftsfelder */
.prop-input {
  background: var(--bg-canvas);
  border: 1px solid transparent;
  border-radius: 3px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 1px 4px;
  width: 90px;
  text-align: right;
  transition: border-color 0.15s;
}
.prop-input:hover { border-color: var(--border); }
.prop-input:focus {
  outline: none;
  border-color: #3b82f6;
  background: var(--surface-2);
}
/* Ungültige Eingabe */
.prop-input:invalid { border-color: #f87171; }

/* ── Linienkreuz (TLinienEigenschaft-Äquivalent) ─────────────────────────── */
/* Ref: Bauteile/Bauteil.pas – TLinienEigenschaft.Paint */
.line-cross {
  background: var(--surface-1);
  border: 1px solid #475569;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-primary);
  min-width: 120px;
  user-select: none;
  position: relative;   /* für lc-close absolute positioning */
}

/* Kreuz-Layout: Tabelle mit Trennlinien */
.lc-table {
  border-collapse: collapse;
  width: 100%;
  padding: 2px;
}
.lc-cell {
  padding: 3px 6px;
  text-align: right;
  white-space: nowrap;
  min-width: 48px;
}
/* Vertikale Trennlinie zwischen linker und rechter Spalte */
.lc-vsep {
  width: 1px;
  background: #475569;
  padding: 0;
}
/* Horizontale Trennlinie zwischen oberer und unterer Zeile */
.lc-hsep {
  height: 1px;
  background: #475569;
  width: 100%;
}

/* Kleine Einheit inline hinter dem Wert */
.lc-unit-inline {
  font-size: 9px;
  color: var(--text-secondary);
  margin-left: 1px;
  font-style: normal;
}

/* Schließen-Button oben rechts */
.lc-close {
  position: absolute;
  top: 2px; right: 3px;
  background: none; border: none;
  color: var(--text-secondary);
  font-size: 9px; cursor: pointer;
  padding: 0; line-height: 1;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 1;
}
.line-cross:hover .lc-close { opacity: 1; }
.lc-close:hover { color: #f87171; }


/* ── Bauteilkasten / Toolbox ─────────────────────────────────────────────── */
.toolbox-search {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
}
.toolbox-search input {
  width: 100%; background: var(--bg-canvas);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  padding: 4px 8px; font-size: 12px;
  font-family: inherit;
  outline: none;
}
.toolbox-search input:focus { border-color: #3b82f6; }

.toolbox-groups { overflow-y: auto; flex: 1; }

.toolbox-group { border-bottom: 1px solid var(--border); }
.toolbox-group-header {
  padding: 6px 10px;
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--text-secondary);
  display: flex; justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  background: var(--bg-panel);
  position: sticky; top: 0; z-index: 1;
}
.toolbox-group-header:hover { color: var(--text-primary); }

.toolbox-group-body { padding: 4px 4px; }
.toolbox-group.collapsed .toolbox-group-body { display: none; }

.toolbox-item {
  display: flex; align-items: center; gap: 7px;
  padding: 5px 8px;
  border-radius: 4px;
  cursor: default;   /* Sprint 4: drag-cursor */
  font-size: 12px;
  color: var(--text-secondary);
  transition: background 0.12s;
}
.toolbox-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.toolbox-item-icon {
  width: 20px; height: 20px;
  flex-shrink: 0;
  border-radius: 3px;
  object-fit: contain;
}
.toolbox-item-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ═══════════════════════════════════════════════════════════════════════════
   SPRINT 4 – Drag & Drop, Neu-Bauteil-Modus
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Toolbox Drag ────────────────────────────────────────────────────────────── */
/* Ref: Baukasten.pas – DragItem */
.toolbox-item[draggable="true"] {
  cursor: grab;
  user-select: none;
}
.toolbox-item[draggable="true"]:active { cursor: grabbing; }
.toolbox-item.dragging {
  opacity: 0.45;
  background: var(--bg-hover);
}

/* ── Canvas-Bauteil-Drop-Overlay ──────────────────────────────────────────── */
/* Sichtbares Feedback wenn ein Bauteil-Item über den Canvas gezogen wird */
#canvas-container.bauteil-drag-over::after {
  content: 'Bauteil hier ablegen';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.10);
  border: 2px dashed #3b82f6;
  font-size: 16px;
  font-weight: 600;
  color: #60a5fa;
  pointer-events: none;
  z-index: 5;
  letter-spacing: 0.04em;
}

/* ── Neu-Bauteil: Cytoscape-Highlight ─────────────────────────────────────── */
/* Neu platzierte, noch unbestätigte Bauteile werden gepunktet umrandet */
/* Wird per Cytoscape-Style-Klasse 'new-bauteil' gesetzt (canvas.js) */
/* (Cytoscape liest CSS-Klassen nicht direkt – Style ist in CYTOSCAPE_STYLES) */

/* ── Eigenschaften-Panel: Neu-Modus Aktions-Leiste ───────────────────────── */
/* Ref: ShowBautProp.pas – OK/Abbrechen-Buttons */
.prop-new-actions {
  position: sticky;
  bottom: 0;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  padding: 10px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3);
  z-index: 10;
}

.prop-new-hint {
  font-size: 11px;
  color: #60a5fa;
  background: rgba(37, 99, 235, 0.12);
  border-radius: 4px;
  padding: 5px 8px;
  line-height: 1.5;
}

.prop-new-buttons {
  display: flex;
  gap: 8px;
}

.prop-new-cancel {
  flex: 1;
  padding: 7px 10px;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  border-radius: var(--radius);
  color: #f87171;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.prop-new-cancel:hover {
  background: rgba(239, 68, 68, 0.25);
  border-color: #f87171;
}

.prop-new-confirm {
  flex: 2;
  padding: 7px 10px;
  background: #1d4ed8;
  border: 1px solid #2563eb;
  border-radius: var(--radius);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}
.prop-new-confirm:hover { background: #2563eb; }

/* ── Kennlinien/Kennfeld Dropdown (Sprint 4) ──────────────────────────────── */
/* Ref: ShowBautProp.pas – quelltyp = 1 (Datei) / 2 (KF-Datenbank) */
.prop-select {
  width: 100%;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 3px 6px;
  cursor: pointer;
  outline: none;
  appearance: auto;   /* Nativer Dropdown-Pfeil */
}
.prop-select:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 2px rgba(59,130,246,0.2);
}
.prop-select option {
  background: var(--bg-panel);
  color: var(--text-primary);
}

/* ── S4-4: GUI-Einstellungen Modal ──────────────────────────────────────────
   Ref: Master.pas – TOptionsForm (TProgramSettings)                          */

/* Overlay-Hintergrund */
.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;             /* flex via JS */
  align-items: center;
  justify-content: center;
}
.settings-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.60);
  backdrop-filter: blur(4px);
}

/* Dialog-Card */
.settings-dialog {
  position: relative;
  z-index: 1;
  width: 420px;
  max-width: 96vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  overflow: hidden;
}

/* Titelleiste */
.settings-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--surface-1);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}
.settings-titlebar span { flex: 1; }
.settings-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 15px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}
.settings-close:hover { background: rgba(239,68,68,0.18); color: #ef4444; }

/* Scroll-Body */
.settings-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 0 4px 0;
}

/* Abschnitt */
.cfg-section {
  padding: 14px 23px 6px 18px;   /* +5px rechts */
  border-bottom: 1px solid var(--border);
}
.cfg-section:last-child { border-bottom: none; }
.cfg-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #60a5fa;
  margin: 0 0 10px 0;
}

/* Zeile: Label + Control */
.cfg-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 9px;
  min-height: 28px;
}
.cfg-label {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: baseline;
  gap: 5px;
  flex: 1;
  cursor: default;
}
.cfg-unit-hint {
  font-size: 10px;
  color: var(--text-muted, var(--text-secondary));
  opacity: 0.65;
}

/* Einheiten-Dropdown */
.cfg-select {
  width: 130px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text-primary);
  font-size: 12px;
  font-family: var(--font-mono);
  padding: 4px 8px;
  cursor: pointer;
  outline: none;
}
.cfg-select:focus { border-color: #3b82f6; box-shadow: 0 0 0 2px rgba(59,130,246,0.2); }

/* Toggle-Switch */
.cfg-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 40px;
  height: 22px;
  cursor: pointer;
  flex-shrink: 0;
}
.cfg-toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.cfg-toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 11px;
  transition: background 0.2s;
}
.cfg-toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 2px;
  width: 16px;
  height: 16px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}
.cfg-toggle input:checked + .cfg-toggle-slider { background: #1d4ed8; border-color: #2563eb; }
.cfg-toggle input:checked + .cfg-toggle-slider::before { transform: translateX(18px); background: #fff; }

/* Range Slider */
.cfg-slider-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 140px;
}
.cfg-slider-wrap input[type='range'] {
  flex: 1;
  accent-color: #3b82f6;
  cursor: pointer;
}
.cfg-slider-val {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-primary);
  min-width: 24px;
  text-align: right;
}

/* Aktions-Leiste */
.settings-actions {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface-1);
  justify-content: flex-end;
}
.settings-cancel {
  padding: 7px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.settings-cancel:hover { background: rgba(239,68,68,0.12); color: #ef4444; border-color: #ef4444; }
.settings-apply {
  padding: 7px 16px;
  background: #1d4ed8;
  border: 1px solid #2563eb;
  border-radius: var(--radius);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}
.settings-apply:hover { background: #2563eb; }


/* ═══════════════════════════════════════════════════════════════
   ZYKLUS-MODAL
   Layout: Left 250px fixed | Right flex chart (PaintBox1)
   Ref: zyklus1.pas – PanelTop + PanelClient + PaintBox1
   ═══════════════════════════════════════════════════════════════ */

.zyklus-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  flex-direction: column;
  background: var(--bg-main, #0f1117);
  color: var(--text-primary, #e2e8f0);
  font-size: 12px;
}

/* Titelleiste */
.zyklus-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  height: 36px;
  background: var(--bg-panel, #1a1d2e);
  border-bottom: 1px solid var(--border, #2d3155);
  user-select: none;
  flex-shrink: 0;
}
.zyklus-titlebar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 13px;
}
.zyklus-titlebar-right { display: flex; align-items: center; gap: 6px; }

.zyklus-tbtn {
  background: transparent;
  border: 1px solid var(--border, #2d3155);
  color: var(--text-secondary, #94a3b8);
  border-radius: 4px;
  padding: 3px 8px;
  cursor: pointer;
  display: flex; align-items: center; gap: 4px;
  font-size: 11px;
  transition: background 0.15s;
}
.zyklus-tbtn:hover { background: rgba(255,255,255,0.07); }
.zyklus-close { font-size: 14px; padding: 2px 7px; }
.zyklus-close:hover { background: rgba(239,68,68,0.2); color: #ef4444; }

/* CSV-Dateiname-Gruppe: Label + Input + Button nebeneinander */
.zyklus-csv-group {
  display: flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--border, #2d3155);
  border-radius: 5px;
  padding: 2px 4px 2px 7px;
  background: rgba(255,255,255,0.03);
}
.zyklus-csv-label {
  font-size: 10px;
  color: var(--text-secondary, #64748b);
  white-space: nowrap;
  user-select: none;
}
.zyklus-csv-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary, #e2e8f0);
  font-size: 11px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  width: 160px;
  padding: 0 2px;
}
.zyklus-csv-input::placeholder { color: var(--text-secondary, #64748b); opacity: 0.6; }
.zyklus-csv-input:focus { box-shadow: inset 0 -1px 0 var(--accent, #6366f1); }
/* CSV-Button im Gruppen-Kontext: kein separater Rand */
.zyklus-csv-group .zyklus-tbtn { border: none; padding: 2px 6px; }

/* Status-Label in Titelleiste */
.zyklus-status {
  font-size: 11px;
  font-weight: 400;
  padding: 2px 7px;
  border-radius: 3px;
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary, #94a3b8);
}
.zyklus-status.success { background: rgba(34,197,94,0.15); color: #22c55e; }
.zyklus-status.warn    { background: rgba(234,179,8,0.15);  color: #eab308; }
.zyklus-status.error   { background: rgba(239,68,68,0.15);  color: #ef4444; }
.zyklus-status.info    { background: rgba(96,165,250,0.15); color: #60a5fa; }

/* Hauptkörper: links + rechts */
.zyklus-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Linkes Panel ──────────────────────────────────────────────────── */
.zyklus-left-panel {
  width: 250px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border, #2d3155);
  overflow: hidden;
}

/* Parameter-Sektion */
.zyklus-param-section {
  padding: 8px;
  border-bottom: 1px solid var(--border, #2d3155);
  flex-shrink: 0;
}
.zyklus-param-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 5px;
  font-size: 11px;
}
.zyklus-param-row label { color: var(--text-secondary, #94a3b8); }
.zyklus-select, .zyklus-input {
  background: var(--bg-input, #1e2235);
  border: 1px solid var(--border, #2d3155);
  color: var(--text-primary, #e2e8f0);
  border-radius: 3px;
  padding: 2px 5px;
  font-size: 11px;
  width: 90px;
}
.zyklus-run-btn {
  width: 100%;
  margin-top: 6px;
  padding: 6px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: opacity 0.15s;
}
.zyklus-run-btn:hover   { opacity: 0.9; }
.zyklus-run-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Abschnitts-Header (Kanäle / Kennwerte) */
.zyklus-section-header {
  padding: 4px 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary, #94a3b8);
  background: var(--bg-panel, #1a1d2e);
  border-bottom: 1px solid var(--border, #2d3155);
  flex-shrink: 0;
}

/* Kanal-Liste (CheckListBox1) */
.zyklus-kanal-liste {
  overflow-y: auto;
  flex: 1 1 0;
  padding: 4px 0;
  min-height: 80px;
  max-height: 300px;
}
.zyklus-kanal-item {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  cursor: pointer;
  font-size: 11px;
  line-height: 1.3;
  border-radius: 2px;
  transition: background 0.1s;
}
.zyklus-kanal-item:hover { background: rgba(255,255,255,0.05); }
.zyklus-kanal-item input[type=checkbox] { cursor: pointer; flex-shrink: 0; }
.kanal-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  display: inline-block;
  border: 1px solid rgba(255,255,255,0.2);
}
.kanal-label { color: var(--text-primary, #e2e8f0); }

/* Kennwerte-Panel (Memo1 Äquivalent) */
.zyklus-kennwerte-panel {
  overflow-y: auto;
  flex: 2 1 0;
  font-size: 11px;
}
.kw-meta {
  display: flex;
  justify-content: space-between;
  padding: 5px 8px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border, #2d3155);
  color: var(--text-secondary, #94a3b8);
  font-size: 10px;
  gap: 6px;
  flex-wrap: wrap;
}
.kw-table { width: 100%; border-collapse: collapse; }
.kw-table tr:nth-child(even) { background: rgba(255,255,255,0.02); }
.kw-table tr:hover { background: rgba(96,165,250,0.08); }
.kw-label  { padding: 2px 8px; color: var(--text-secondary, #94a3b8); }
.kw-wert   { padding: 2px 4px; text-align: right; font-family: 'Courier New', monospace; font-size: 10.5px; color: #60a5fa; }
.kw-einheit{ padding: 2px 6px 2px 2px; color: var(--text-muted, #64748b); font-size: 10px; }

.zyklus-hint { color: var(--text-secondary, #94a3b8); padding: 8px; display: block; font-size: 11px; }

/* ── Rechtes Haupt-Panel: Chart ────────────────────────────────────── */
.zyklus-chart-panel {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 8px;
  position: relative;
}
#zyklus-chart {
  flex: 1;         /* Chart nimmt den gesamten verbleibenden Platz */
  min-height: 0;
  width: 100% !important;
}

/* Berechnungs-Log (eingeklappt, am Boden des Chart-Panels) */
.zyklus-log-wrap {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border, #2d3155);
  margin-top: 4px;
}
.zyklus-log-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary, #94a3b8);
  font-size: 10px;
  text-align: left;
  padding: 3px 6px;
  cursor: pointer;
  letter-spacing: 0.03em;
}
.zyklus-log-toggle:hover { color: var(--text-primary, #e2e8f0); }
.zyklus-log-output {
  background: rgba(0,0,0,0.3);
  border-radius: 3px;
  padding: 6px 8px;
  font-size: 10px;
  font-family: 'Courier New', monospace;
  color: #94a3b8;
  max-height: 140px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  margin: 2px 0 4px;
}

/* ── S4-B: Erweitert-Accordion im Zyklus-Modal ──────────────────────────── */
/* Ref: zyklus1.pas – savesprograd (interne Berechnungsauflösung)            */
.zyklus-advanced-section {
  margin-top: 6px;
  border-top: 1px solid var(--border, #2d3155);
  padding-top: 4px;
}
.zyklus-advanced-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary, #94a3b8);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 3px 0;
  width: 100%;
  text-align: left;
  transition: color 0.15s;
}
.zyklus-advanced-toggle:hover { color: var(--text-primary, #e2e8f0); }
.zyklus-advanced-body { padding: 4px 0 2px; }
.zyklus-param-hint {
  font-size: 9px;
  color: var(--text-secondary, #64748b);
  opacity: 0.75;
  padding: 2px 0 0;
  line-height: 1.4;
}

#panel-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.5);
  z-index: 25;
  border: none;
}
#panel-backdrop[hidden] { display: none !important; }

.panel-fab {
  position: absolute;
  top: 8px;
  z-index: 24;
  width: 36px;
  height: 36px;
  display: none;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: rgba(30, 41, 59, 0.92);
  color: var(--text-primary);
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}
.panel-fab[hidden] { display: none !important; }
.panel-fab-left { left: 8px; }
.panel-fab-right { right: 8px; }
.panel-fab:hover { background: var(--bg-hover); }

.log-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

#log-panel.collapsed {
  --log-collapsed-h: 32px;
}
#app:has(#log-panel.collapsed) {
  --log-h: 32px;
}
#log-panel.collapsed #log-output { display: none; }

/* ── Kompaktes Layout (Telefon / schmale oder niedrige Viewports) ───── */
@media (max-width: 840px), (max-height: 560px) {
  :root {
    --log-h: 32px;
    --panel-w: 260px;
    --toolbar-h: 40px;
  }

  #toolbar {
    padding: 3px 4px;
    padding-left: max(4px, env(safe-area-inset-left));
    padding-right: max(4px, env(safe-area-inset-right));
    gap: 2px;
    row-gap: 2px;
    flex-wrap: wrap;
    align-content: flex-start;
  }
  #toolbar .app-title {
    font-size: 0;
    margin-right: 2px;
    gap: 0;
  }
  #toolbar .app-title svg { width: 18px; height: 18px; }
  #toolbar .sep,
  #toolbar .tb-spacer { display: none; }

  /* Beschriftung ausblenden, Icons bleiben – alle Buttons sichtbar */
  .tb-btn {
    font-size: 0;
    gap: 0;
    padding: 6px;
    min-width: 32px;
    min-height: 32px;
    justify-content: center;
    touch-action: manipulation;
  }
  .tb-btn svg { width: 16px; height: 16px; }
  .tb-btn .caret { display: none; }
  .project-label { display: none; }

  #beta-banner {
    font-size: 11px;
    padding: 3px 8px;
    gap: 2px 8px;
  }
  #beta-banner .beta-contact { margin-left: 0; }
  #beta-banner #beta-user-label { width: 96px; max-width: 34vw; font-size: 11px; }
  #beta-banner .beta-privacy { font-size: 10px; }
  #beta-banner.disclaimer-acked { max-height: calc(1.35em + 6px); }

  #main { min-height: 0; }

  /* Kästen überlagern die Fläche und nehmen keinen Flex-Platz weg */
  #sidebar,
  #properties {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 30;
    width: min(280px, 86vw);
    max-width: 86vw;
    min-width: 0;
    box-shadow: 0 0 28px rgba(0, 0, 0, 0.45);
    transition: transform 0.2s ease;
  }
  #sidebar { left: 0; }
  #properties { right: 0; }

  #sidebar.collapsed,
  #properties.collapsed {
    width: min(280px, 86vw);
    min-width: 0;
    pointer-events: none;
  }
  #sidebar.collapsed { transform: translateX(-100%); }
  #properties.collapsed { transform: translateX(100%); }

  #sidebar.collapsed .panel-header-title,
  #sidebar.collapsed .toolbox-search,
  #sidebar.collapsed .toolbox-groups,
  #properties.collapsed .tab-btn,
  #properties.collapsed .tab-panel {
    display: revert;
  }

  body.layout-compact .panel-fab:not([hidden]) {
    display: flex;
  }

  #log-panel {
    padding-bottom: env(safe-area-inset-bottom);
  }

  #upload-overlay {
    padding: 16px 12px;
    gap: 10px;
  }
  #upload-overlay h2 { font-size: 16px; }
  #upload-overlay p { font-size: 12px; }
  #upload-overlay .hero-icon { font-size: 32px; }
  #upload-overlay .upload-actions {
    flex-direction: column;
    align-items: stretch;
    width: min(100%, 280px);
  }
}

@media (max-width: 420px) {
  #toolbar .app-title span.version { display: none; }
  #beta-banner .beta-contact { font-size: 10px; }
}