:root {
    --ict-blue: #4d49bc;
    --ict-blue-hover: #3f3ba6;
    --ict-blue-soft: rgba(77, 73, 188, 0.12);
    --ict-violet: #3e0d81;
    --ict-yellow: #f9d057;
    --ict-cyan: #99e5e8;
    --ict-salmon: #ff997f;
    --ict-gray: #f0f0f7;
    --ict-gray-2: #e6e5f0;
    --ict-gray-3: #d6d5e4;
    --ict-text: #000000;
    --ict-muted: #6f6e85;
    --ict-border: rgba(0, 0, 0, 0.08);
    --ict-shadow: 0 24px 64px rgba(33, 17, 55, 0.1);
    --ict-shadow-sm: 0 8px 24px rgba(33, 17, 55, 0.12);
    --ict-danger: #d94a4a;
    --ict-success: #2fa36b;
    --radius: 10px;
    --pill: 999px;
}

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

body {
    font-family: Montserrat, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: #ffffff;
    color: var(--ict-text);
    overflow: hidden;
    font-weight: 500;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-weight: 500;
    color: var(--ict-text);
    letter-spacing: -0.01em;
}

button, input, select, textarea {
    font-family: inherit;
    font-weight: 500;
}

button:focus-visible, input:focus-visible, select:focus-visible {
    outline: 2px solid var(--ict-blue);
    outline-offset: 1px;
}

::-webkit-scrollbar {
    width: 0;
    height: 0;
}

.device-library,
.manage-list,
.groups-list,
.properties-panel,
.sidebar-content {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.canvas-wrapper {
    scrollbar-width: thin;
    scrollbar-color: rgba(77, 73, 188, 0.45) var(--ict-gray);
    -ms-overflow-style: auto;
}

.canvas-wrapper::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

.canvas-wrapper::-webkit-scrollbar-track {
    background: var(--ict-gray);
}

.canvas-wrapper::-webkit-scrollbar-thumb {
    background: rgba(77, 73, 188, 0.45);
    border-radius: 6px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

.canvas-wrapper::-webkit-scrollbar-thumb:hover {
    background: rgba(77, 73, 188, 0.8);
    background-clip: padding-box;
}

.canvas-wrapper::-webkit-scrollbar-corner {
    background: var(--ict-gray);
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* ===================== Toolbar ===================== */

.toolbar {
    display: flex;
    gap: 14px;
    align-items: center;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1.5px solid var(--ict-border);
    flex-wrap: wrap;
    position: relative;
    z-index: 70;
}

.toolbar-group {
    display: flex;
    gap: 6px;
    align-items: center;
}

.toolbar-group.brand {
    gap: 12px;
    padding-right: 14px;
    border-right: 1.5px solid var(--ict-border);
}

.brand-logo {
    height: 34px;
    width: auto;
    display: block;
}

.brand-sub {
    font-size: 13px;
    color: var(--ict-muted);
    font-weight: 500;
    letter-spacing: 0.01em;
}

.toolbar-group.project-info input {
    padding: 8px 16px;
    background: var(--ict-gray);
    border: 1.5px solid var(--ict-gray);
    color: var(--ict-text);
    border-radius: var(--pill);
    font-size: 13px;
    transition: border-color 0.2s, background 0.2s;
}

.toolbar-group.project-info input::placeholder {
    color: var(--ict-muted);
}

.toolbar-group.project-info input:focus {
    outline: none;
    background: #fff;
    border-color: var(--ict-blue);
}

.toolbar-group.project-info input#projectName {
    width: 160px;
}

.toolbar-group.project-info input#projectNumber {
    width: 112px;
}

.toolbar button {
    padding: 8px 14px;
    background: #ffffff;
    border: 1.5px solid var(--ict-text);
    color: var(--ict-text);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.3;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.toolbar button:hover {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.menu-toggle {
    display: none;
    padding: 8px 16px;
    background: #fff;
    border: 1.5px solid var(--ict-text);
    color: var(--ict-text);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 13px;
}

.toolbar-menus {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.menu-dropdown {
    position: relative;
}

.toolbar .menu-trigger {
    padding: 8px 14px;
    background: var(--ict-gray);
    border: 1.5px solid var(--ict-gray);
    color: var(--ict-blue);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.toolbar .menu-trigger:hover {
    background: var(--ict-gray-2);
    border-color: var(--ict-gray-2);
    color: var(--ict-blue);
}

.toolbar .menu-dropdown.open .menu-trigger {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.menu-panel {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 50;
    flex-direction: column;
    gap: 6px;
    min-width: 240px;
    padding: 12px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    border-radius: var(--radius);
    box-shadow: var(--ict-shadow);
}

.menu-dropdown.open .menu-panel {
    display: flex;
}

.toolbar .menu-panel button {
    width: 100%;
    text-align: left;
    background: transparent;
    border-color: transparent;
    color: var(--ict-text);
    border-radius: 8px;
    padding: 9px 12px;
}

.toolbar .menu-panel button:hover {
    background: var(--ict-gray);
    border-color: var(--ict-gray);
    color: var(--ict-blue);
}

.menu-separator {
    height: 1px;
    margin: 4px 0;
    background: var(--ict-border);
}

.menu-autosave {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.menu-autosave input[type="number"] {
    width: 56px;
    padding: 3px 6px;
    font-size: 12px;
    border: 1px solid var(--ict-border);
    border-radius: 6px;
}

.menu-autosave .menu-hint {
    font-size: 11px;
    color: #6b7280;
    padding: 2px 12px 4px;
}

.properties-panel.highlight {
    animation: propertiesFlash 1.2s ease-out;
    border-radius: 10px;
}

@keyframes propertiesFlash {
    0% { box-shadow: 0 0 0 3px var(--ict-blue); background: var(--ict-blue-soft); }
    100% { box-shadow: 0 0 0 0 transparent; background: transparent; }
}

.context-menu {
    position: fixed;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 220px;
    padding: 8px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    border-radius: 12px;
    box-shadow: var(--ict-shadow);
    font-size: 13px;
    user-select: none;
}

.context-menu-title {
    padding: 6px 12px 8px;
    font-weight: 600;
    color: var(--ict-muted);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 260px;
}

.context-menu-tag {
    margin-left: 6px;
    padding: 1px 6px;
    border-radius: 6px;
    background: var(--ict-gray-2);
    color: var(--ict-text);
    font-weight: 500;
}

.context-menu button {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    text-align: left;
    background: transparent;
    border: 1.5px solid transparent;
    color: var(--ict-text);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 13px;
    cursor: pointer;
}

.context-menu button:hover,
.context-menu button.active {
    background: var(--ict-gray);
    color: var(--ict-blue);
}

.context-menu button.danger {
    color: var(--ict-danger);
}

.context-menu button.danger:hover {
    background: rgba(217, 74, 74, 0.1);
    color: var(--ict-danger);
}

.context-menu-sub {
    position: relative;
}

.context-menu-sub-trigger {
    justify-content: space-between;
}

.context-menu-arrow {
    color: var(--ict-muted);
}

.context-menu-sub-panel {
    display: none;
    position: absolute;
    top: -8px;
    left: 100%;
    margin-left: 4px;
    min-width: 180px;
    padding: 8px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    border-radius: 12px;
    box-shadow: var(--ict-shadow);
    flex-direction: column;
    gap: 2px;
}

.context-menu-sub:hover .context-menu-sub-panel {
    display: flex;
}

.context-menu-swatch {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid var(--ict-border);
    flex-shrink: 0;
}

.context-menu-color {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 12px;
    color: var(--ict-text);
    font-size: 13px;
    cursor: pointer;
}

.context-menu-color input[type="color"] {
    width: 36px;
    height: 24px;
    padding: 0;
    border: 1.5px solid var(--ict-border);
    border-radius: 6px;
    background: transparent;
    cursor: pointer;
}

.menu-panel label {
    color: var(--ict-text);
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
}

.menu-panel-ansicht .grid-size-label {
    justify-content: space-between;
}

.menu-panel-ansicht input[type="number"] {
    width: 74px;
    background: var(--ict-gray);
    color: var(--ict-text);
    border: 1.5px solid var(--ict-gray);
    border-radius: 8px;
    padding: 5px 8px;
    font-size: 12px;
}

.menu-panel-ansicht select {
    margin: 0 12px;
    background: var(--ict-gray);
    color: var(--ict-text);
    border: 1.5px solid var(--ict-gray);
    border-radius: 8px;
    padding: 7px 10px;
    font-size: 12px;
}

.zoom-controls {
    margin-left: auto;
}

/* Rechte Toolbar-Gruppe: Zoom-Steuerung und Konto-Widget (cloud-auth.js) bleiben
   als Einheit am rechten Rand - aendert sich die Breite des Konto-Widgets (z.B.
   Sync-Status), bricht die Menueleiste dadurch nicht mehr um. */
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.zoom-controls span {
    min-width: 54px;
    text-align: center;
    font-size: 13px;
    color: var(--ict-muted);
}

.zoom-controls button {
    min-width: 36px;
}

.history-controls {
    gap: 4px;
}

.toolbar .history-controls .icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: 50%;
}

.toolbar .history-controls .icon-btn svg {
    display: block;
}

.toolbar .history-controls .icon-btn:disabled {
    opacity: 0.35;
    cursor: default;
}

.toolbar .history-controls .icon-btn:disabled:hover {
    background: #ffffff;
    border-color: var(--ict-text);
    color: var(--ict-text);
}

input[type="checkbox"] {
    accent-color: var(--ict-blue);
}

/* ===================== Layout / Sidebar ===================== */

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    width: 290px;
    min-width: 50px;
    max-width: 500px;
    background: var(--ict-gray);
    border-right: 1.5px solid var(--ict-border);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: width 0.2s ease;
}

.sidebar.collapsed {
    width: 50px !important;
    min-width: 50px;
}

.sidebar.collapsed .sidebar-content {
    display: none;
}

.sidebar.collapsed .sidebar-header h3 {
    display: none;
}

.sidebar-footer {
    padding: 8px 18px;
    border-top: 1.5px solid var(--ict-border);
    font-size: 11px;
    color: var(--ict-muted);
    text-align: left;
    white-space: nowrap;
}

.sidebar-save-status {
    padding: 0 18px 8px;
    font-size: 11px;
    color: var(--ict-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: 14px;
}

.sidebar-save-status.dirty {
    color: #d32f2f;
    font-weight: 600;
}

.sidebar-footer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    border-top: 1.5px solid var(--ict-border);
}

.sidebar-footer-bar .sidebar-footer {
    border-top: none;
    flex: 1 1 auto;
    min-width: 0;
}

.bug-report-btn {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 4px 12px 2px 0;
    padding: 3px;
    color: #000;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    line-height: 0;
    transition: background 0.2s, color 0.2s;
}

.bug-report-btn svg {
    display: block;
}

.bug-report-btn:hover {
    color: var(--ict-blue);
    background: var(--ict-gray);
}

.sidebar.collapsed .sidebar-footer-bar {
    display: none;
}

.bug-report-file-list {
    margin: -8px 0 12px;
}

.bug-report-file {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 4px 10px;
    margin-bottom: 4px;
    font-size: 12px;
    background: var(--ict-gray);
    border-radius: 6px;
}

.bug-report-file button {
    border: none;
    background: transparent;
    color: var(--ict-muted);
    cursor: pointer;
    font-size: 12px;
    padding: 2px 6px;
}

.bug-report-file button:hover {
    color: #d32f2f;
}

.bug-report-meta {
    font-size: 11px;
    line-height: 1.4;
    color: var(--ict-muted);
    margin: 4px 0 8px;
}

.bug-report-status {
    min-height: 18px;
    font-size: 12px;
    margin: 4px 0 0;
}

.bug-report-status.error {
    color: #d32f2f;
}

.bug-report-status.success {
    color: #2e7d32;
    font-weight: 600;
}

.bug-report-inline-btn {
    padding: 3px 10px;
    font-size: 12px;
    border: 1px solid var(--ict-blue);
    background: #fff;
    color: var(--ict-blue);
    border-radius: 6px;
    cursor: pointer;
}

#bugReportForm textarea {
    width: 100%;
    padding: 9px 14px;
    margin-top: 5px;
    background: var(--ict-gray);
    border: 1.5px solid var(--ict-gray);
    color: var(--ict-text);
    border-radius: 8px;
    font-size: 13px;
    font-family: inherit;
    resize: vertical;
}

#bugReportForm textarea:focus {
    outline: none;
    background: #fff;
    border-color: var(--ict-blue);
}

.sidebar.collapsed .sidebar-footer,
.sidebar.collapsed .sidebar-save-status {
    display: none;
}

.sidebar.collapsed .toggle-sidebar {
    transform: rotate(180deg);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1.5px solid var(--ict-border);
    flex-shrink: 0;
}

.sidebar-header h3 {
    margin: 0;
    color: var(--ict-text);
    font-size: 14px;
    font-weight: 600;
}

.toggle-sidebar {
    background: #fff;
    border: 1.5px solid var(--ict-border);
    color: var(--ict-blue);
    cursor: pointer;
    font-size: 12px;
    width: 28px;
    height: 28px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.toggle-sidebar:hover {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 16px 18px;
}

.sidebar-content h3 {
    margin-bottom: 10px;
    color: var(--ict-text);
    font-size: 14px;
    font-weight: 600;
}

.sidebar-resize {
    position: absolute;
    right: -1px;
    top: 0;
    bottom: 0;
    width: 5px;
    cursor: ew-resize;
    background: transparent;
    transition: background 0.2s;
}

.sidebar-resize:hover,
.sidebar-resize.active {
    background: var(--ict-blue);
}

.sidebar hr {
    border: none;
    border-top: 1.5px solid var(--ict-border);
    margin: 18px 0;
}

.search-box {
    margin-bottom: 10px;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 9px 16px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    color: var(--ict-text);
    border-radius: var(--pill);
    font-size: 13px;
    transition: border-color 0.2s;
}

.search-box input::placeholder {
    color: var(--ict-muted);
}

.search-box input:focus {
    outline: none;
    border-color: var(--ict-blue);
}

.search-box:has(.search-clear:not([hidden])) input {
    padding-right: 34px;
}

.search-clear {
    position: absolute;
    top: 50%;
    right: 8px;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--ict-muted);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
}

.search-clear:hover {
    background: var(--ict-gray);
    color: var(--ict-blue);
}

.group-filter {
    margin-bottom: 12px;
}

.group-filter select {
    width: 100%;
    padding: 9px 14px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    color: var(--ict-text);
    border-radius: var(--pill);
    font-size: 13px;
}

.device-library {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.group-section {
    margin-bottom: 8px;
}

.group-section .group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    border-radius: var(--pill);
    cursor: pointer;
    user-select: none;
    transition: background 0.2s, border-color 0.2s;
}

.group-section .group-header:hover {
    border-color: var(--ict-blue);
}

.group-section .group-header .group-toggle {
    font-size: 10px;
    color: var(--ict-muted);
    transition: transform 0.2s;
    width: 12px;
}

.group-section.collapsed .group-header .group-toggle {
    transform: rotate(-90deg);
}

.group-section .group-header .group-color {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.group-section .group-header .group-name {
    font-size: 11px;
    font-weight: 600;
    color: var(--ict-blue);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    flex: 1;
}

.group-section .group-devices {
    padding-left: 6px;
    margin-top: 6px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.group-section.collapsed .group-devices {
    display: none;
}

.device-template {
    padding: 10px 12px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    border-radius: var(--radius);
    cursor: grab;
    border-left: 4px solid var(--device-color, var(--ict-blue));
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.device-template:hover {
    border-color: var(--ict-blue);
    border-left-color: var(--device-color, var(--ict-blue));
    box-shadow: var(--ict-shadow-sm);
    transform: translateY(-1px);
}

.device-template .name {
    font-weight: 600;
    font-size: 13px;
}

.device-template .article {
    font-size: 10px;
    color: var(--ict-muted);
    margin-top: 2px;
}

.device-template .io-info {
    font-size: 11px;
    color: var(--ict-muted);
    margin-top: 4px;
}

.properties-panel .hint {
    color: var(--ict-muted);
    font-style: italic;
    font-size: 12px;
}

.properties-panel p {
    font-size: 12px;
    color: var(--ict-muted);
    margin-bottom: 4px;
    line-height: 1.5;
}

.properties-panel p strong {
    color: var(--ict-text);
    font-weight: 600;
}

.properties-panel label {
    display: block;
    margin-bottom: 10px;
    font-size: 12px;
    color: var(--ict-text);
}

.properties-panel input, .properties-panel select, .properties-panel textarea {
    width: 100%;
    padding: 7px 12px;
    margin-top: 4px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    color: var(--ict-text);
    border-radius: 8px;
    font-size: 12px;
}

.properties-panel textarea {
    display: block;
    min-height: 70px;
    resize: vertical;
    font-family: inherit;
}

.properties-panel input:focus, .properties-panel select:focus, .properties-panel textarea:focus {
    outline: none;
    border-color: var(--ict-blue);
}

.properties-panel input[type="color"] {
    padding: 2px;
    height: 32px;
}

.properties-panel hr {
    border: none;
    border-top: 1.5px solid var(--ict-border);
    margin: 10px 0;
}

.btn-danger,
.btn-secondary {
    width: 100%;
    margin-top: 10px;
    padding: 9px 16px;
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    border: 1.5px solid transparent;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.btn-danger {
    background: #ffffff;
    border-color: var(--ict-danger);
    color: var(--ict-danger);
}

.btn-danger:hover {
    background: var(--ict-danger);
    color: #fff;
}

.btn-secondary {
    background: #ffffff;
    border-color: var(--ict-text);
    color: var(--ict-text);
}

.btn-secondary:hover {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

/* ===================== Canvas ===================== */

.canvas-container {
    flex: 1;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    background: #ffffff;
}

.sheet-tabs {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px 0 18px;
    background: #ffffff;
    flex-shrink: 0;
}

.sheet-tab-list {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    scrollbar-width: none;
}

.sheet-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px;
    background: var(--ict-gray);
    border: 1.5px solid var(--ict-gray);
    border-radius: var(--pill);
    color: var(--ict-blue);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.sheet-tab:hover {
    background: var(--ict-gray-2);
    border-color: var(--ict-gray-2);
}

.sheet-tab.active {
    color: #fff;
    background: var(--ict-blue);
    border-color: var(--ict-blue);
}

.sheet-tab .sheet-close {
    color: inherit;
    opacity: 0.6;
    font-size: 14px;
    line-height: 1;
}

.sheet-tab .sheet-close:hover {
    opacity: 1;
}

.sheet-tab input.sheet-rename {
    background: #fff;
    border: 1.5px solid var(--ict-blue);
    border-radius: 6px;
    color: var(--ict-text);
    font-size: 13px;
    padding: 2px 6px;
    width: 120px;
}

.sheet-tab.group-workspace-tab {
    background: rgba(62, 13, 129, 0.08);
    border-color: var(--ict-violet);
    color: var(--ict-violet);
}

.sheet-tab.group-workspace-tab:hover {
    background: var(--ict-violet);
    border-color: var(--ict-violet);
    color: #fff;
}

.group-workspace-bar {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 18px;
    margin: 10px 18px 0 18px;
    background: rgba(62, 13, 129, 0.08);
    border: 1.5px solid var(--ict-violet);
    border-radius: 10px;
    flex-shrink: 0;
}

.group-workspace-bar .group-workspace-title {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    color: var(--ict-violet);
}

.group-workspace-bar button {
    padding: 7px 16px;
    border-radius: var(--pill);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.group-workspace-bar .group-workspace-back {
    background: #ffffff;
    border: 1.5px solid var(--ict-violet);
    color: var(--ict-violet);
}

.group-workspace-bar .group-workspace-back:hover {
    background: var(--ict-violet);
    color: #fff;
}

.group-workspace-bar .group-workspace-expand {
    background: var(--ict-violet);
    border: 1.5px solid var(--ict-violet);
    color: #fff;
}

.group-workspace-bar .group-workspace-expand:hover {
    background: var(--ict-violet-hover, var(--ict-violet));
    opacity: 0.9;
}

#btnAddSheet {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1.5px solid var(--ict-text);
    border-radius: 50%;
    color: var(--ict-text);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

#btnAddSheet:hover {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.project-header {
    background: #ffffff;
    padding: 14px 18px 14px 18px;
    border-bottom: 1.5px solid var(--ict-border);
    display: flex;
    gap: 20px;
    align-items: center;
}

.project-header-lines {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.project-header span {
    font-size: 14px;
}

.project-header #displayProjectName {
    color: var(--ict-text);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.project-header #displayProjectNumber {
    color: var(--ict-blue);
    font-size: 13px;
    font-weight: 600;
}

.project-header #displayProjectMeta {
    color: var(--ict-muted);
    font-size: 12px;
}

.canvas-wrapper {
    flex: 1;
    overflow: auto;
    background: #ffffff;
    touch-action: pan-x pan-y;
}

.canvas-wrapper.pan-mode,
.canvas-wrapper.pan-mode * {
    cursor: grab !important;
}

.canvas-wrapper.pan-mode.panning,
.canvas-wrapper.pan-mode.panning * {
    cursor: grabbing !important;
}

.diagram-canvas {
    min-width: 3000px;
    min-height: 2000px;
    cursor: default;
    user-select: none;
    -webkit-user-select: none;
    font-family: Montserrat, 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.device-block {
    cursor: move;
}

.device-block rect.body {
    stroke: rgba(0, 0, 0, 0.25);
    stroke-width: 1;
}

.device-block.selected rect.body {
    stroke: var(--ict-blue);
    stroke-width: 2.5;
}

.device-block.multi-selected rect.body {
    stroke: var(--ict-violet);
    stroke-width: 2.5;
    stroke-dasharray: 5 3;
}

.marquee-select {
    fill: rgba(77, 73, 188, 0.1);
    stroke: var(--ict-blue);
    stroke-width: 1;
    stroke-dasharray: 4 3;
    pointer-events: none;
}

.group-outline {
    fill: rgba(62, 13, 129, 0.05);
    stroke: var(--ict-violet);
    stroke-width: 1.5;
    stroke-dasharray: 9 5;
}

.group-label {
    fill: var(--ict-violet);
    font-size: 12px;
    font-weight: 600;
    user-select: none;
}

.group-outline-editing {
    fill: rgba(62, 13, 129, 0.1);
    stroke-width: 2.5;
    stroke-dasharray: none;
}

.diagram-canvas.group-edit-active .device-block.group-edit-dimmed {
    opacity: 0.4;
}

.diagram-canvas.group-edit-active .device-block.group-edit-member rect.body {
    stroke: var(--ict-violet);
    stroke-width: 2.5;
}

.group-collapsed-block {
    cursor: move;
}

.group-collapsed-body {
    fill: rgba(62, 13, 129, 0.08);
    stroke: var(--ict-violet);
    stroke-width: 2;
}

.group-collapsed-title {
    fill: var(--ict-violet);
    font-size: 13px;
    font-weight: 700;
    user-select: none;
}

.group-collapsed-divider {
    stroke: var(--ict-violet);
    stroke-width: 1;
    opacity: 0.4;
}

.group-collapsed-item {
    fill: #333;
    font-size: 11px;
    user-select: none;
}

.group-merged-connection {
    fill: none;
    stroke: var(--ict-violet);
    stroke-width: 2;
}

.group-merged-badge {
    fill: var(--ict-violet);
    font-size: 10px;
    font-weight: 600;
    user-select: none;
}

.group-ws-ext-stub {
    stroke: #94a3b8;
    stroke-width: 2;
    stroke-dasharray: 5 4;
}

.group-ws-ext-label {
    fill: #475569;
    font-size: 11px;
    font-style: italic;
    user-select: none;
}

.device-block text.label {
    fill: #fff;
    font-size: 12px;
    font-weight: 600;
    pointer-events: none;
}

.device-block text.type-label {
    fill: rgba(255,255,255,0.75);
    font-size: 10px;
    pointer-events: none;
}

.device-block text.article-label {
    fill: rgba(255,255,255,0.65);
    font-size: 9px;
    pointer-events: none;
}

.device-block.placeholder rect.body {
    stroke: var(--ict-yellow);
    stroke-width: 2.5;
    stroke-dasharray: 7 4;
}

.device-block.placeholder text.placeholder-badge {
    fill: #fff;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
    pointer-events: none;
}

.textbox-block {
    cursor: move;
}

.textbox-block rect.textbox-frame {
    stroke-width: 1.5;
}

.textbox-block.selected rect.textbox-frame {
    stroke-width: 3;
}

.textbox-block text.textbox-text {
    font-weight: 600;
    pointer-events: none;
    white-space: pre;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 8px 0;
    font-size: 12px;
}

.checkbox-row input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.port {
    cursor: crosshair;
}

.port circle {
    stroke: #fff;
    stroke-width: 1.5;
    transition: r 0.15s;
}

.port:hover circle {
    r: 8;
}

.port text {
    fill: #fff;
    font-size: 9px;
    pointer-events: none;
}

.connection-group {
    cursor: pointer;
}

.connection {
    stroke: var(--ict-blue);
    stroke-width: 2;
    fill: none;
    marker-end: url(#arrowhead);
}

.connection:hover {
    stroke-width: 3;
}

.connection.selected,
.connection-group.selected .connection {
    stroke-width: 3;
}

.connection-label {
    fill: #fff;
    font-size: 10px;
    font-weight: 600;
    pointer-events: none;
    text-anchor: middle;
}

.connection-label-bg {
    fill: rgba(62, 13, 129, 0.92);
    rx: 3;
    ry: 3;
}

.connection-preview {
    stroke: var(--ict-blue);
    stroke-width: 2;
    stroke-dasharray: 5,5;
    fill: none;
    pointer-events: none;
}

.conn-handle {
    fill: #ffffff;
    stroke: var(--ict-blue);
    stroke-width: 2;
    cursor: grab;
    opacity: 0.9;
}

.conn-handle:hover {
    fill: var(--ict-blue);
    opacity: 1;
}

.conn-bend {
    fill: #ffffff;
    stroke: var(--ict-violet);
    stroke-width: 1.5;
    cursor: move;
    opacity: .9;
}

.conn-bend:hover {
    opacity: 1;
    r: 8;
}

.conn-bend.active {
    stroke: var(--ict-blue);
    fill: var(--ict-blue);
    opacity: 1;
}

/* ===================== Modals ===================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(33, 17, 55, 0.45);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(33, 17, 55, 0.45);
    backdrop-filter: blur(4px);
    z-index: 3000;
    align-items: center;
    justify-content: center;
    cursor: progress;
}

.loading-overlay.active {
    display: flex;
}

.loading-box {
    background: #ffffff;
    padding: 28px 32px;
    border-radius: 16px;
    width: 360px;
    text-align: center;
    box-shadow: var(--ict-shadow);
}

.loading-box .spinner {
    margin: 0 auto 16px;
}

.loading-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--ict-text);
    margin-bottom: 14px;
}

.loading-bar {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--ict-blue-soft);
    overflow: hidden;
}

.loading-bar-fill {
    height: 100%;
    width: 0%;
    border-radius: 4px;
    background: var(--ict-blue);
    transition: width 0.15s ease-out;
}

.loading-detail {
    margin-top: 10px;
    font-size: 12px;
    color: var(--ict-muted);
    min-height: 16px;
}

.modal-content {
    background: #ffffff;
    padding: 28px;
    border-radius: 16px;
    width: 460px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--ict-shadow);
}

.modal-content.modal-large {
    width: 620px;
}

.modal-content h2 {
    margin-bottom: 20px;
    color: var(--ict-text);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.modal-content .hint {
    color: var(--ict-muted);
    font-size: 13px;
    margin-bottom: 14px;
}

.shortcuts-list h3 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ict-muted);
    margin: 18px 0 6px;
}

.shortcuts-list h3:first-child {
    margin-top: 0;
}

.shortcuts-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.shortcuts-table td {
    padding: 7px 4px;
    border-bottom: 1px solid var(--ict-gray);
    color: var(--ict-text);
    vertical-align: middle;
}

.shortcuts-table tr:last-child td {
    border-bottom: none;
}

.shortcuts-table .shortcut-keys {
    text-align: right;
    white-space: nowrap;
    width: 40%;
}

.shortcuts-table kbd {
    display: inline-block;
    min-width: 22px;
    padding: 3px 7px;
    font-family: inherit;
    font-size: 12px;
    line-height: 1.2;
    text-align: center;
    color: var(--ict-text);
    background: var(--ict-gray);
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-bottom-width: 2px;
    border-radius: 6px;
}

.shortcuts-table .shortcut-plus {
    margin: 0 3px;
    color: var(--ict-muted);
    font-size: 12px;
}

.shortcuts-table .shortcut-or {
    margin: 0 8px;
    color: var(--ict-muted);
    font-size: 12px;
}

.modal-content form label,
.modal-content .modal-fields label,
.modal-content > label,
.modal-content .form-row label,
#deviceStep1 > label {
    display: block;
    margin-bottom: 15px;
    font-size: 13px;
}

.modal-content form input, .modal-content form select,
.modal-content .form-row input, .modal-content .form-row select,
#deviceStep1 > label:not(.checkbox-row) > input, #deviceStep1 > label > select {
    width: 100%;
    padding: 9px 14px;
    margin-top: 5px;
    background: var(--ict-gray);
    border: 1.5px solid var(--ict-gray);
    color: var(--ict-text);
    border-radius: 8px;
    font-size: 13px;
    transition: border-color 0.2s, background 0.2s;
}

.modal-content form input:focus, .modal-content form select:focus,
.modal-content .form-row input:focus, .modal-content .form-row select:focus,
#deviceStep1 > label:not(.checkbox-row) > input:focus {
    outline: none;
    background: #fff;
    border-color: var(--ict-blue);
}

.modal-content input[type="color"] {
    height: 38px;
    width: 90px !important;
    display: block;
    padding: 3px;
    cursor: pointer;
}

.modal-content .checkbox-row,
.modal-content label.checkbox-row,
#deviceStep1 > label.checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 12px;
    color: var(--ict-muted);
    margin: 4px 0 8px;
}

.modal-content .checkbox-row input[type="checkbox"],
#deviceStep1 > label.checkbox-row > input[type="checkbox"] {
    width: auto;
    margin: 2px 0 0;
    flex-shrink: 0;
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row label {
    flex: 1;
}

.io-section {
    margin: 15px 0;
    padding: 14px;
    background: var(--ict-gray);
    border-radius: var(--radius);
}

.io-section h4 {
    margin-bottom: 10px;
    font-size: 13px;
    font-weight: 600;
}

.io-item {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
    align-items: center;
}

.io-item input {
    flex: 1;
}

.io-section input, .io-section select {
    background: #ffffff !important;
    border-color: var(--ict-border) !important;
}

.io-item button {
    padding: 5px 12px;
    background: #ffffff;
    border: 1.5px solid var(--ict-danger);
    color: var(--ict-danger);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 12px;
}

.io-item button:hover {
    background: var(--ict-danger);
    color: #fff;
}

.io-section > button {
    width: 100%;
    padding: 8px;
    background: #ffffff;
    border: 1.5px solid var(--ict-text);
    color: var(--ict-text);
    border-radius: var(--pill);
    cursor: pointer;
    margin-top: 5px;
    font-size: 13px;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.io-section > button:hover {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.modal-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.modal-buttons button {
    flex: 1;
    padding: 10px 18px;
    border: 1.5px solid var(--ict-text);
    background: #ffffff;
    color: var(--ict-text);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.modal-buttons button:hover {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.modal-buttons button[type="submit"],
.modal-buttons button#btnDeviceNext,
.modal-buttons button#btnStartPdfExport,
.modal-buttons button#btnStartAutoConnect {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.modal-buttons button[type="submit"]:hover,
.modal-buttons button#btnDeviceNext:hover,
.modal-buttons button#btnStartPdfExport:hover,
.modal-buttons button#btnStartAutoConnect:hover {
    background: var(--ict-blue-hover);
    border-color: var(--ict-blue-hover);
}

.pdf-export-option {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    font-size: 13px;
    color: var(--ict-text);
}

.pdf-sheet-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    cursor: pointer;
}

.pdf-sheet-item .manage-meta {
    margin-left: auto;
}

.pdf-sheet-item .manage-main .manage-meta {
    margin-left: 0;
}

.pdf-group-item {
    padding-left: 30px;
    background: rgba(0, 0, 0, 0.03);
}

#autoConnectPreview {
    max-height: 300px;
    overflow-y: auto;
    margin-top: 8px;
}

.modal-buttons button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.modal-buttons button#btnResetLibrary {
    border-color: var(--ict-danger);
    color: var(--ict-danger);
}

.modal-buttons button#btnResetLibrary:hover {
    background: var(--ict-danger);
    border-color: var(--ict-danger);
    color: #fff;
}

.step-info {
    background: var(--ict-gray);
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 15px;
    font-size: 13px;
    color: var(--ict-text);
    border-left: 4px solid var(--ict-blue);
}

.io-name-field {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 8px;
}

.io-name-field .io-drag-handle {
    cursor: grab;
    color: var(--ict-muted);
    font-size: 14px;
    letter-spacing: -3px;
    user-select: none;
    padding: 4px 2px;
}

.io-name-field .io-drag-handle:active {
    cursor: grabbing;
}

.io-name-field.dragging {
    opacity: 0.4;
}

.io-name-field .io-number {
    min-width: 30px;
    color: var(--ict-muted);
    font-size: 12px;
}

.io-name-field input {
    flex: 1;
    padding: 8px 12px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    color: var(--ict-text);
    border-radius: 8px;
    font-size: 13px;
}

.io-item select.io-cable,
.io-name-field select.io-cable {
    width: 130px;
    padding: 8px 10px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    color: var(--ict-text);
    border-radius: 8px;
    font-size: 12px;
}

.manage-list {
    max-height: 380px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.manage-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--ict-gray);
    border-radius: var(--radius);
    margin-bottom: 8px;
}

.manage-item .manage-color {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 1.5px solid #fff;
    box-shadow: 0 0 0 1px var(--ict-border);
    flex-shrink: 0;
}

.manage-item .manage-main {
    flex: 1;
    min-width: 0;
}

.manage-item .manage-name {
    font-weight: 600;
    font-size: 13px;
}

.manage-item .manage-meta {
    color: var(--ict-muted);
    font-size: 12px;
}

.manage-item input.group-color-input {
    width: 32px;
    height: 28px;
    padding: 2px;
    border: 1.5px solid var(--ict-border);
    border-radius: 6px;
    background: #ffffff;
    cursor: pointer;
    flex-shrink: 0;
}

.manage-item input.manage-input {
    flex: 1;
    padding: 6px 10px;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    color: var(--ict-text);
    border-radius: 8px;
    font-size: 13px;
}

#missingLengthsList .missing-length-item,
#signalCheckList .missing-length-item {
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 14px;
    padding: 12px 14px;
}

#missingLengthsList .missing-length-route,
#signalCheckList .missing-length-route {
    flex: 1 1 260px;
    min-width: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px 10px;
}

#missingLengthsList .missing-length-endpoint,
#signalCheckList .missing-length-endpoint {
    display: flex;
    flex-direction: column;
    flex: 1 1 0;
    min-width: 0;
    line-height: 1.3;
    overflow-wrap: anywhere;
}

#missingLengthsList .missing-length-device,
#signalCheckList .missing-length-device {
    font-weight: 600;
    font-size: 13px;
    color: var(--ict-text);
}

#missingLengthsList .missing-length-port,
#signalCheckList .missing-length-port {
    font-size: 11px;
    color: var(--ict-muted);
}

#missingLengthsList .missing-length-arrow,
#signalCheckList .missing-length-arrow {
    color: var(--ict-blue);
    font-size: 16px;
    flex-shrink: 0;
}

#missingLengthsList .missing-length-name,
#signalCheckList .missing-length-name {
    flex-basis: 100%;
    font-size: 11px;
    color: var(--ict-muted);
    font-style: italic;
}

#missingLengthsList .missing-length-controls,
#signalCheckList .missing-length-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
    margin-left: auto;
}

#missingLengthsList .missing-length-field,
#signalCheckList .missing-length-field {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    font-size: 12px;
    color: var(--ict-muted);
}

#missingLengthsList input.missing-length-input {
    flex: 0 0 auto;
    width: 96px;
    margin: 0;
    padding: 7px 10px;
    text-align: right;
    background: #ffffff;
    border: 1.5px solid var(--ict-border);
    border-radius: 8px;
    font-size: 13px;
    color: var(--ict-text);
}

#missingLengthsList input.missing-length-input:focus {
    outline: none;
    border-color: var(--ict-blue);
}

#missingLengthsList .btn-jump-connection,
#signalCheckList .btn-jump-connection {
    flex-shrink: 0;
    width: auto;
    margin: 0;
    padding: 7px 14px;
    background: #ffffff;
    border: 1.5px solid var(--ict-text);
    color: var(--ict-text);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

#missingLengthsList .btn-jump-connection:hover,
#signalCheckList .btn-jump-connection:hover {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

#signalCheckList .signal-check-item {
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 14px;
    padding: 12px 14px;
    border-left: 4px solid var(--ict-border);
}

#signalCheckList .signal-check-error { border-left-color: #e74c3c; }
#signalCheckList .signal-check-warning { border-left-color: #f39c12; }
#signalCheckList .signal-check-info { border-left-color: var(--ict-blue); }
#signalCheckList .signal-check-ok { border-left-color: #27ae60; color: var(--ict-text); font-size: 13px; }

#signalCheckList .signal-check-badge {
    flex: 0 0 auto;
    padding: 2px 8px;
    border-radius: var(--pill);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #fff;
    background: var(--ict-border);
}

#signalCheckList .signal-check-error .signal-check-badge { background: #e74c3c; }
#signalCheckList .signal-check-warning .signal-check-badge { background: #f39c12; }
#signalCheckList .signal-check-info .signal-check-badge { background: var(--ict-blue); }

#signalCheckList .signal-check-title {
    flex-basis: 100%;
    font-size: 12px;
    font-weight: 600;
    color: var(--ict-text);
}

#signalCheckList .signal-check-detail {
    flex-basis: 100%;
    font-size: 11px;
    color: var(--ict-muted);
}

#signalCheckList .btn-jump-connection:disabled {
    opacity: 0.4;
    cursor: default;
}

#signalCheckList .btn-jump-connection:disabled:hover {
    background: #ffffff;
    border-color: var(--ict-text);
    color: var(--ict-text);
}

.manage-item .btn-edit,
.manage-item .btn-add-canvas,
.manage-item .btn-delete,
.manage-item .btn-export {
    padding: 6px 12px;
    background: #ffffff;
    border: 1.5px solid var(--ict-text);
    color: var(--ict-text);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.manage-item .btn-edit {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.manage-item .btn-edit:hover {
    background: var(--ict-blue-hover);
    border-color: var(--ict-blue-hover);
}

.manage-item .btn-add-canvas:hover,
.manage-item .btn-export:hover {
    background: var(--ict-blue);
    border-color: var(--ict-blue);
    color: #fff;
}

.manage-item .btn-delete {
    border-color: var(--ict-danger);
    color: var(--ict-danger);
}

.manage-item .btn-delete:hover {
    background: var(--ict-danger);
    color: #fff;
}

.groups-list {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 15px;
}

.group-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--ict-gray);
    border-radius: var(--radius);
    margin-bottom: 8px;
}

.group-item .group-color-box {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1.5px solid #fff;
    box-shadow: 0 0 0 1px var(--ict-border);
}

.group-item .group-name-text {
    flex: 1;
    font-weight: 600;
    font-size: 13px;
}

.group-item .group-count {
    color: var(--ict-muted);
    font-size: 12px;
}

.group-item button {
    padding: 5px 12px;
    background: #ffffff;
    border: 1.5px solid var(--ict-danger);
    color: var(--ict-danger);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 12px;
}

.group-item button:hover {
    background: var(--ict-danger);
    color: #fff;
}

.add-group-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.add-group-row input[type="text"] {
    flex: 1;
    min-width: 140px;
    padding: 9px 14px;
    background: var(--ict-gray);
    border: 1.5px solid var(--ict-gray);
    color: var(--ict-text);
    border-radius: var(--pill);
    font-size: 13px;
}

.add-group-row input[type="text"]:focus {
    outline: none;
    background: #fff;
    border-color: var(--ict-blue);
}

.add-group-row input[type="color"] {
    width: 40px;
    height: 36px;
    padding: 3px;
    border: 1.5px solid var(--ict-border);
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
}

.add-group-row button {
    padding: 9px 18px;
    background: var(--ict-blue);
    border: 1.5px solid var(--ict-blue);
    color: #fff;
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: background 0.2s, border-color 0.2s;
}

.add-group-row button:hover {
    background: var(--ict-blue-hover);
    border-color: var(--ict-blue-hover);
}

.analysis-status {
    text-align: center;
    padding: 40px;
    color: var(--ict-muted);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--ict-gray);
    border-top-color: var(--ict-blue);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.detected-info {
    background: var(--ict-gray);
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 15px;
    border-left: 4px solid var(--ict-success);
}

.detected-info p {
    margin: 0;
    color: var(--ict-success);
    font-size: 13px;
}

/* ===================== Farb-Swatches / Sonstiges ===================== */

.color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
}

.color-swatch {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1.5px solid var(--ict-border);
    cursor: pointer;
    padding: 0;
    transition: transform 0.15s, box-shadow 0.15s;
}

.color-swatch:hover {
    transform: scale(1.1);
}

.color-swatch.active {
    box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--ict-blue);
}

.properties-panel button.danger,
button.danger {
    width: 100%;
    margin-top: 10px;
    padding: 9px 16px;
    background: #ffffff;
    border: 1.5px solid var(--ict-danger);
    color: var(--ict-danger);
    border-radius: var(--pill);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: background 0.2s, color 0.2s;
}

button.danger:hover {
    background: var(--ict-danger);
    color: #fff;
}

/* ===================== Responsive ===================== */

@media (max-width: 1100px) {
    .toolbar {
        gap: 12px;
        padding: 10px 16px;
    }

    .menu-toggle {
        display: inline-block;
    }

    .toolbar-menus {
        display: none;
        width: 100%;
        order: 10;
        padding-top: 10px;
        border-top: 1.5px solid var(--ict-border);
    }

    .toolbar-menus.mobile-open {
        display: flex;
    }

    .toolbar-group.project-info input#projectName {
        width: 150px;
    }

    .zoom-controls {
        margin-left: 0;
    }
}

@media (max-width: 760px) {
    .sidebar {
        width: 240px;
    }

    .brand-sub {
        display: none;
    }

    .modal-content,
    .modal-content.modal-large {
        width: calc(100vw - 32px);
        padding: 20px;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }
}


/* ---------------------------------------------------------------- Nur-Lesen-Modus (geteilte Projekte) */
.read-only-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 10px 18px 0 18px;
    padding: 8px 14px;
    background: #fff4d6;
    border: 1px solid #f9d057;
    border-radius: 8px;
    color: #5a4300;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.read-only-banner .ro-lock { font-size: 1rem; }
.read-only-banner.flash { animation: ro-flash 0.6s ease; }
@keyframes ro-flash {
    0% { background: #ff997f; }
    100% { background: #fff4d6; }
}
body.read-only .toolbar button:disabled,
body.read-only .toolbar input:disabled,
body.read-only .toolbar select:disabled,
body.read-only .menu-panel button:disabled,
body.read-only .menu-panel input:disabled,
body.read-only .menu-panel select:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}
body.read-only #deviceLibrary,
body.read-only #propertiesPanel {
    pointer-events: none;
    opacity: 0.55;
}
body.read-only .diagram-canvas .device-block,
body.read-only .diagram-canvas .textbox-block,
body.read-only .diagram-canvas .port,
body.read-only .diagram-canvas .conn-bend,
body.read-only .diagram-canvas .conn-handle {
    cursor: default !important;
}
body.read-only .diagram-canvas .conn-bend,
body.read-only .diagram-canvas .conn-handle {
    display: none;
}
@media print {
    body.read-only .app-container { display: none !important; }
    body.read-only::before {
        content: "Dieses Projekt wurde nur zum Lesen freigegeben und kann nicht gedruckt werden.";
        display: block;
        padding: 40px;
        font-family: sans-serif;
        font-size: 14pt;
    }
}