/* =================================================================
   NETZWERKPLANER – imifactory.ch
   EBENE 1 (Header/Footer/Boxen/Buttons) = FROZEN nach Standard v3.0
   EBENE 2 (Tool-Workspace)              = moderne SaaS-Optik erlaubt
   ================================================================= */

/* ─── RESET & BASE ─────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f8fafc;
  margin: 0;
  color: #333;
  line-height: 1.6;
}

/* Universeller Helfer: ausgeblendetes Element (ersetzt inline style="display:none") */
.is-hidden {
  display: none !important;
}

/* ─── HEADER (FROZEN) ──────────────────────────────────────────── */
header {
  background: linear-gradient(90deg, #05263d 0%, #0b3c5d 100%);
  padding: 15px 25px;
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
}

.sitename {
  font-size: 24px;
  font-weight: 700;
  text-decoration: none;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.sitename img {
  height: 32px;
  width: auto;
}

/* ─── BREADCRUMB (FROZEN) ──────────────────────────────────────── */
.breadcrumb {
  margin-top: 8px;
  font-size: 12px;
  color: #cbd5e1;
}

.breadcrumb a {
  color: #fff;
  text-decoration: none;
}

.breadcrumb a:hover {
  color: #00bfae;
}

/* ─── CONTAINER (FROZEN) ───────────────────────────────────────── */
.container {
  max-width: 1000px;
  margin: 30px auto;
  padding: 0 20px;
}

/* ─── BACK-LINK (FROZEN) ───────────────────────────────────────── */
.back-link {
  display: inline-block;
  margin-bottom: 15px;
  text-decoration: none;
  color: #0b3c5d;
  font-size: 14px;
  font-weight: 700;
}

.back-link:hover {
  color: #00897b;
}

/* ─── INTROBOX (FROZEN) ────────────────────────────────────────── */
.imi-intro {
  background: linear-gradient(90deg, #e7f3fd, #f4faff);
  border-left: 5px solid #0b3c5d;
  padding: 24px 28px;
  border-radius: 4px;
  margin-bottom: 22px;
}

.imi-intro h2 {
  margin: 0 0 10px;
  color: #0b3c5d;
  font-size: 20px;
}

.imi-intro p {
  font-size: 15px;
  color: #444;
  margin: 0;
}

/* ─── CONTENT-BOX SYSTEM (FROZEN) ──────────────────────────────── */
.content-box {
  background: #fff;
  border: 1px solid #d1dce6;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,.05);
  margin-bottom: 22px;
}

.box-header {
  background: #0b3c5d;
  color: #fff;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.box-body {
  padding: 24px 28px;
}

/* ─── BUTTONS (FROZEN) ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition: background .2s, border-color .2s, color .2s, box-shadow .2s;
  font-family: inherit;
  white-space: nowrap;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 3px solid #00bfae;
  outline-offset: 2px;
}

/* Deaktivierte Buttons (z.B. Undo/Redo ohne Verlauf) */
.btn:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.btn-primary {
  background: #0b3c5d;
  color: #fff;
}
.btn-primary:hover {
  background: #1565a0;
}

.btn-accent {
  background: #00bfae;
  color: #fff;
}
.btn-accent:hover {
  background: #00897b;
}

.btn-outline {
  background: #fff;
  color: #0b3c5d;
  border: 2px solid #0b3c5d;
}
.btn-outline:hover {
  background: #0b3c5d;
  color: #fff;
}
.btn-outline:disabled:hover {
  background: #fff;
  color: #0b3c5d;
}

.btn-danger {
  background: #ef5350;
  color: #fff;
}
.btn-danger:hover {
  background: #c62828;
}

/* Buttons im Box-Header (weiss/transparent) */
.btn-header {
  background: rgba(255,255,255,.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,.4);
  padding: 5px 11px;
  font-size: 12px;
  border-radius: 5px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
}
.btn-header:hover {
  background: rgba(255,255,255,.28);
  border-color: #fff;
}
.btn-header:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.btn-group-header {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}

/* Quadratischer Icon-Button (Zoom / Undo / Redo) */
.btn-icon {
  padding: 10px 14px;
  font-size: 16px;
  line-height: 1;
}

/* ─── FORM STANDARD (FROZEN) ───────────────────────────────────── */
label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #5a7080;
  margin-bottom: 4px;
  margin-top: 14px;
}

input[type="text"],
input[type="date"],
input[type="time"],
textarea,
select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid #d1dce6;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: #333;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: #0b3c5d;
}

/* ─── GRID (FROZEN) ────────────────────────────────────────────── */
.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ─── FOOTER (FROZEN) ──────────────────────────────────────────── */
footer {
  text-align: center;
  font-size: 13px;
  color: #64748b;
  margin-top: 40px;
  padding-bottom: 30px;
}

footer a {
  color: #0b3c5d;
  text-decoration: none;
  margin: 0 10px;
}

footer a:hover {
  color: #00897b;
}

/* ─── HIDDEN FILE INPUT ────────────────────────────────────────── */
#file-import {
  display: none;
}

/* ═══════════════════════════════════════════════════════════════
   EBENE 2: TOOL-WORKSPACE (modern, SaaS-artig)
   ═══════════════════════════════════════════════════════════════ */

/* ─── STEUERUNGSLEISTE ─────────────────────────────────────────── */
.controls-row {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.ctrl-group {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.ctrl-label {
  font-size: 12px;
  font-weight: 700;
  color: #5a7080;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}

#zoom-display {
  font-size: 13px;
  font-weight: 700;
  color: #0b3c5d;
  min-width: 42px;
  text-align: center;
  display: inline-block;
}

/* Raster-Umschalter (eigenständiges Element, überschreibt frozen label) */
.opt-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  color: #5a7080;
  text-transform: uppercase;
  letter-spacing: .04em;
  cursor: pointer;
  user-select: none;
}

.opt-toggle input {
  width: 16px;
  height: 16px;
  margin: 0;
  cursor: pointer;
  accent-color: #0b3c5d;
}

/* Tastenkürzel-Hinweis */
.kbd-hint {
  margin: 16px 0 0;
  font-size: 11px;
  color: #94a3b8;
  line-height: 1.9;
}

kbd {
  display: inline-block;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 6px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 10px;
  font-weight: 700;
  color: #475569;
}

/* Header-Hint rechts im Box-Header */
.header-hint {
  font-size: 11px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: rgba(255,255,255,.75);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 360px;
}

/* ─── TOOL-BEREICH LAYOUT ──────────────────────────────────────── */
.tool-content-box {
  overflow: visible; /* Modus-Badge sichtbar lassen */
}

.tool-area {
  display: flex;
  height: 580px;
  overflow: hidden;
  border-top: 1px solid #d1dce6;
}

/* ─── GERÄTEPALETTE (links) ────────────────────────────────────── */
.device-palette {
  width: 138px;
  flex-shrink: 0;
  border-right: 1px solid #d1dce6;
  background: #f8fafc;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 10px 7px;
}

.palette-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #94a3b8;
  margin-bottom: 6px;
  padding: 0 4px;
}

/* Gruppenüberschrift in der Palette */
.palette-group-title {
  grid-column: 1 / -1;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #0b3c5d;
  margin: 9px 0 4px;
  padding: 3px 4px 2px;
  border-bottom: 1px solid #e2e8f0;
}
.palette-group-title:first-child {
  margin-top: 0;
}

/* 2-Spalten-Raster für die Geräte-Buttons */
.palette-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.palette-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding: 7px 3px;
  border: 1px solid #d1dce6;
  border-radius: 7px;
  background: #fff;
  cursor: pointer;
  transition: background .15s, border-color .15s, box-shadow .15s;
  font-family: inherit;
  min-height: 52px;
  justify-content: center;
}

.palette-btn:hover {
  background: #e7f3fd;
  border-color: #0b3c5d;
  box-shadow: 0 2px 6px rgba(11,60,93,.12);
}

.palette-btn:focus-visible {
  outline: 2px solid #00bfae;
  outline-offset: 1px;
}

.palette-btn:active {
  transform: scale(.95);
}

.pal-icon {
  font-size: 19px;
  line-height: 1;
  margin-bottom: 3px;
}

.pal-label {
  font-size: 8.5px;
  font-weight: 600;
  color: #374151;
  text-align: center;
  line-height: 1.25;
  word-break: break-word;
}

/* ─── ZEICHENFLÄCHE ────────────────────────────────────────────── */
.canvas-wrapper {
  flex: 1;
  position: relative;
  overflow: hidden;
  cursor: grab;
  background-color: #eef3f8;
  background-image:
    linear-gradient(rgba(11,60,93,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11,60,93,.06) 1px, transparent 1px);
  background-size: 28px 28px;
  user-select: none;
}

.canvas-wrapper:active {
  cursor: grabbing;
}

/* Modus-spezifische Cursor */
.canvas-wrapper[data-mode="connect"] {
  cursor: crosshair;
}
.canvas-wrapper[data-mode="delete"] {
  cursor: not-allowed;
}

/* Canvas-Fläche (transformiert per JS) */
.canvas-area {
  position: absolute;
  top: 0;
  left: 0;
  width: 4000px;
  height: 3000px;
  transform-origin: 0 0;
}

/* SVG-Ebene für Verbindungslinien (immer hinter Knoten) */
#connections-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 4000px;
  height: 3000px;
  /* pointer-events: none ist default; Gruppen setzen es selektiv */
}

/* ─── KNOTEN (NODES) ───────────────────────────────────────────── */
.node {
  position: absolute;
  width: 130px;
  min-height: 58px;
  border: 2px solid #94a3b8;
  border-radius: 10px;
  padding: 8px 8px 7px;
  cursor: pointer;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.09);
  transition: box-shadow .15s, transform .1s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.node:hover {
  box-shadow: 0 4px 14px rgba(0,0,0,.16);
  transform: translateY(-1px);
}

/* Ausgewählter Knoten */
.node.selected {
  box-shadow: 0 0 0 3px #00bfae, 0 4px 14px rgba(0,0,0,.18);
  transform: translateY(-1px);
}

/* Verbindungs-Quellknoten */
.node.connect-source {
  box-shadow: 0 0 0 3px #f59e0b, 0 4px 14px rgba(0,0,0,.18);
  animation: pulse-source .8s ease-in-out infinite alternate;
}

@keyframes pulse-source {
  from { box-shadow: 0 0 0 3px #f59e0b, 0 4px 14px rgba(0,0,0,.18); }
  to   { box-shadow: 0 0 0 6px rgba(245,158,11,.3), 0 4px 14px rgba(0,0,0,.18); }
}

.node:focus-visible {
  outline: 3px solid #00bfae;
  outline-offset: 2px;
}

/* Cursor-Overrides im jeweiligen Modus */
.canvas-wrapper[data-mode="connect"] .node {
  cursor: crosshair;
}

.canvas-wrapper[data-mode="connect"] .node:not(.connect-source):hover {
  box-shadow: 0 0 0 3px #10b981, 0 4px 14px rgba(0,0,0,.18);
}

.canvas-wrapper[data-mode="delete"] .node {
  cursor: not-allowed;
}

.canvas-wrapper[data-mode="delete"] .node:hover {
  box-shadow: 0 0 0 3px #ef4444, 0 4px 14px rgba(0,0,0,.18);
}

/* Knoten-Inhalt */
.node-icon {
  font-size: 22px;
  line-height: 1;
  text-align: center;
}

.node-label {
  font-size: 11px;
  font-weight: 700;
  color: #1e293b;
  text-align: center;
  line-height: 1.25;
  word-break: break-word;
  max-width: 110px;
}

.node-ip {
  font-size: 9px;
  text-align: center;
  color: #64748b;
  font-family: 'Courier New', Courier, monospace;
  letter-spacing: .01em;
}

/* ─── CANVAS-HINWEIS ───────────────────────────────────────────── */
.canvas-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255,255,255,.9);
  border: 1.5px dashed #94a3b8;
  border-radius: 10px;
  padding: 18px 28px;
  font-size: 13px;
  color: #64748b;
  pointer-events: none;
  text-align: center;
  font-weight: 500;
  letter-spacing: .01em;
  line-height: 1.7;
}

.canvas-hint strong {
  color: #0b3c5d;
  font-size: 14px;
}

/* ─── MODUS-BADGE ──────────────────────────────────────────────── */
.canvas-mode-badge {
  position: absolute;
  bottom: 10px;
  right: 12px;
  background: rgba(11,60,93,.82);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  pointer-events: none;
  letter-spacing: .05em;
  text-transform: uppercase;
  backdrop-filter: blur(4px);
}

/* ─── STATUSLEISTE ─────────────────────────────────────────────── */
.tool-statusbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 6px 16px;
  background: #f1f5f9;
  border-top: 1px solid #d1dce6;
  font-size: 11px;
  font-weight: 600;
  color: #5a7080;
  flex-wrap: wrap;
}

#status-counts {
  color: #0b3c5d;
}

.status-hint {
  color: #94a3b8;
  font-weight: 500;
}

/* ─── EIGENSCHAFTEN-AKTIONEN ───────────────────────────────────── */
.prop-actions {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding-top: 14px;
  flex-wrap: wrap;
}

/* ─── TOAST-BENACHRICHTIGUNGEN ─────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  background: #0b3c5d;
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(0,0,0,.28);
  max-width: 90vw;
  opacity: 1;
  transform: translateY(0);
  transition: opacity .25s ease, transform .25s ease;
}

.toast.toast-success { background: #0d9488; }
.toast.toast-error   { background: #c62828; }
.toast.toast-info    { background: #0b3c5d; }

.toast.toast-out {
  opacity: 0;
  transform: translateY(10px);
}

/* ─── RESPONSIVE ───────────────────────────────────────────────── */
@media (max-width: 680px) {

  .grid2 {
    grid-template-columns: 1fr;
  }

  .tool-area {
    flex-direction: column;
    height: auto;
  }

  .device-palette {
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid #d1dce6;
    padding: 8px;
  }

  .palette-group {
    grid-template-columns: repeat(4, 1fr);
  }

  .palette-btn {
    min-height: 56px;
  }

  .canvas-wrapper {
    height: 440px;
  }

  .controls-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .header-hint {
    display: none;
  }

  .box-header {
    font-size: 13px;
  }

  .btn-group-header {
    margin-top: 2px;
  }

  .prop-actions {
    flex-wrap: wrap;
  }

  .status-hint {
    display: none;
  }
}