/* PLC S7-1200 Simulator - Industrial Theme */
/* Font di sistema: nessuna richiesta a servizi esterni */

/* ==================== WORDPRESS INTEGRATION ==================== */
body:has(#plc-simulator) {
    overflow-x: hidden;
}

/* Espandi contenuto WordPress per il simulatore */
body:has(#plc-simulator) .entry-content,
body:has(#plc-simulator) .wp-block-post-content {
    max-width: 100% !important;
}

/* Fullscreen Mode */
.plc-container.fullscreen {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 999999 !important;
    margin: 0 !important;
    border-radius: 0 !important;
}

.plc-container.fullscreen .plc-main {
    height: calc(100vh - 60px);
}

/* Pulsante Fullscreen */
.plc-btn-fullscreen {
    background: var(--plc-bg-light);
    border: 1px solid var(--plc-border);
    color: var(--plc-text);
}

.plc-btn-fullscreen:hover {
    background: var(--plc-accent);
    color: #000;
}

.plc-container.fullscreen .plc-btn-fullscreen .icon-expand {
    display: none;
}

.plc-container.fullscreen .plc-btn-fullscreen .icon-compress {
    display: inline;
}

.plc-btn-fullscreen .icon-compress {
    display: none;
}

:root {
    --plc-bg-dark: #1e2228;
    --plc-bg-medium: #282d36;
    --plc-bg-light: #323844;
    --plc-border: #3e4553;
    --plc-text: #e4e7ec;
    --plc-text-dim: #9ca3af;
    --plc-accent: #00d4aa;
    --plc-accent-glow: rgba(0, 212, 170, 0.3);
    --plc-warning: #f59e0b;
    --plc-danger: #ef4444;
    --plc-success: #22c55e;
    --plc-blue: #3b82f6;
    --plc-input: #2563eb;
    --plc-output: #dc2626;
    --plc-merker: #9333ea;
    --plc-wire: #6b7280;
    --plc-wire-active: #00d4aa;
    --plc-font-mono: ui-monospace, 'SF Mono', 'Cascadia Mono', Menlo, Consolas, 'Liberation Mono', monospace;
    --plc-font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Container */
.plc-container {
    font-family: var(--plc-font-sans);
    background: var(--plc-bg-dark);
    color: var(--plc-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.plc-header {
    background: linear-gradient(180deg, #323844 0%, #282d36 100%);
    border-bottom: 1px solid var(--plc-border);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.plc-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 16px;
    color: var(--plc-accent);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Titolo visibile solo in fullscreen */
.plc-logo span {
    display: none;
}

.plc-container.fullscreen .plc-logo span {
    display: inline;
}

.plc-icon {
    width: 36px;
    height: 36px;
}

.plc-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.plc-btn {
    background: var(--plc-bg-light);
    border: 1px solid var(--plc-border);
    color: var(--plc-text);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--plc-font-sans);
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s ease;
}

.plc-btn:hover {
    background: var(--plc-border);
    border-color: var(--plc-text-dim);
}

.plc-btn-run {
    background: rgba(34, 197, 94, 0.15);
    border-color: var(--plc-success);
    color: var(--plc-success);
}

.plc-btn-run:hover {
    background: rgba(34, 197, 94, 0.25);
}

.plc-btn-run.active {
    background: var(--plc-success);
    color: #000;
    box-shadow: 0 0 12px rgba(34, 197, 94, 0.5);
}

.plc-btn-stop {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--plc-danger);
    color: var(--plc-danger);
}

.plc-btn-stop:hover {
    background: rgba(239, 68, 68, 0.25);
}

.plc-btn-primary {
    background: var(--plc-accent);
    border-color: var(--plc-accent);
    color: #000;
}

.plc-btn-primary:hover {
    background: #00eabb;
}

.plc-btn-danger {
    background: var(--plc-danger);
    border-color: var(--plc-danger);
    color: #fff;
}

.plc-btn-cancel {
    background: transparent;
}

.plc-btn-full {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
}

.plc-divider {
    width: 1px;
    height: 28px;
    background: var(--plc-border);
    margin: 0 8px;
}

.plc-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--plc-bg-dark);
    border-radius: 6px;
    font-family: var(--plc-font-mono);
    font-size: 13px;
    font-weight: 600;
}

.plc-status-led {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--plc-danger);
    box-shadow: 0 0 8px var(--plc-danger);
    transition: all 0.2s ease;
}

.plc-status-led.running {
    background: var(--plc-success);
    box-shadow: 0 0 12px var(--plc-success);
    animation: pulse 1s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Main Layout */
.plc-main {
    display: grid;
    grid-template-columns: 200px 1fr 280px;
    flex: 1;
    overflow: hidden;
    transition: grid-template-columns 0.3s ease;
}

/* Pannelli collassati */
.plc-main.toolbox-collapsed {
    grid-template-columns: 40px 1fr 280px;
}

.plc-main.io-collapsed {
    grid-template-columns: 200px 1fr 40px;
}

.plc-main.toolbox-collapsed.io-collapsed {
    grid-template-columns: 40px 1fr 40px;
}

/* ==================== Panel Header & Collapse ==================== */
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--plc-bg-light);
    border-bottom: 1px solid var(--plc-border);
}

.panel-header h3 {
    margin: 0;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--plc-text-dim);
}

.panel-collapse-btn {
    background: transparent;
    border: 1px solid var(--plc-border);
    color: var(--plc-text-dim);
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.panel-collapse-btn:hover {
    background: var(--plc-accent);
    color: #000;
    border-color: var(--plc-accent);
}

.panel-content {
    overflow-y: auto;
    flex: 1;
    padding: 16px;
    transition: opacity 0.2s ease;
}

/* Toolbox collapsed */
.plc-toolbox.collapsed .panel-content {
    display: none;
}

.plc-toolbox.collapsed {
    display: flex;
    flex-direction: column;
}

.plc-toolbox.collapsed .panel-header {
    display: flex;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    padding: 16px 8px;
    flex: 1;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.plc-toolbox.collapsed .panel-header h3 {
    transform: rotate(180deg);
}

.plc-toolbox.collapsed .panel-collapse-btn {
    transform: rotate(180deg);
}

/* I/O Panel collapsed */
.plc-io-panel.collapsed .panel-content {
    display: none;
}

.plc-io-panel.collapsed {
    display: flex;
    flex-direction: column;
}

.plc-io-panel.collapsed .panel-header {
    display: flex;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    padding: 16px 8px;
    flex: 1;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.plc-io-panel.collapsed .panel-header h3 {
    transform: rotate(180deg);
}

.plc-io-panel.collapsed .panel-collapse-btn {
    transform: rotate(180deg);
}

/* ==================== RUN/STOP States ==================== */

/* In STOP: I/O disabilitato */
.plc-container.mode-stop .plc-io-panel .panel-content {
    opacity: 0.4;
    pointer-events: none;
}

.plc-container.mode-stop .plc-io-panel .io-bit {
    cursor: not-allowed;
}

.plc-container.mode-stop .plc-io-panel::after {
    content: 'STOP';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    font-weight: 700;
    color: var(--plc-danger);
    opacity: 0.3;
    pointer-events: none;
}

.plc-io-panel {
    position: relative;
}

/* In RUN: Toolbox disabilitata */
.plc-container.mode-run .plc-toolbox .panel-content {
    opacity: 0.4;
    pointer-events: none;
}

.plc-container.mode-run .plc-toolbox .plc-tool {
    cursor: not-allowed;
}

.plc-container.mode-run .plc-toolbox::after {
    content: 'RUN';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    font-weight: 700;
    color: var(--plc-success);
    opacity: 0.3;
    pointer-events: none;
}

.plc-toolbox {
    position: relative;
}

/* In RUN: Editor in sola lettura */
.plc-container.mode-run .plc-ladder-canvas {
    pointer-events: none;
}

.plc-container.mode-run .ladder-element {
    cursor: default;
}

.plc-container.mode-run .drop-zone {
    display: none;
}

.plc-container.mode-run .rung-actions {
    display: none;
}

/* Nascondo watermark quando pannello è collapsed */
.plc-toolbox.collapsed::after,
.plc-io-panel.collapsed::after {
    display: none;
}

/* Toolbox */
.plc-toolbox {
    background: var(--plc-bg-medium);
    border-right: 1px solid var(--plc-border);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.plc-toolbox .panel-content {
    padding: 0 16px 16px 16px;
}

.plc-toolbox h3 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--plc-text-dim);
    margin: 0 0 12px 0;
}

.plc-tools {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.plc-tool {
    background: var(--plc-bg-light);
    border: 1px solid var(--plc-border);
    border-radius: 6px;
    padding: 10px;
    cursor: grab;
    transition: all 0.15s ease;
}

.plc-tool:hover {
    border-color: var(--plc-accent);
    background: rgba(0, 212, 170, 0.1);
}

.plc-tool:active {
    cursor: grabbing;
}

.tool-symbol {
    font-family: var(--plc-font-mono);
    font-size: 14px;
    color: var(--plc-accent);
    margin-bottom: 4px;
}

.plc-tool span {
    font-size: 11px;
    color: var(--plc-text-dim);
}

.plc-section {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--plc-border);
}

/* Editor */
.plc-editor {
    background: var(--plc-bg-dark);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.plc-editor-header {
    padding: 12px 20px;
    border-bottom: 1px solid var(--plc-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.plc-editor-header h2 {
    display: none; /* Nome programma basta */
}

#program-name {
    background: var(--plc-bg-light);
    border: 1px solid var(--plc-border);
    color: var(--plc-text);
    padding: 6px 12px;
    border-radius: 4px;
    font-family: var(--plc-font-mono);
    font-size: 13px;
}

.plc-ladder-canvas {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

/* Rung */
.ladder-rung {
    background: var(--plc-bg-medium);
    border: 1px solid var(--plc-border);
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
}

.rung-header {
    background: var(--plc-bg-light);
    padding: 8px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--plc-border);
}

.rung-number {
    font-family: var(--plc-font-mono);
    font-size: 12px;
    color: var(--plc-text-dim);
}

.rung-comment {
    font-size: 12px;
    color: var(--plc-text-dim);
    font-style: italic;
}

.rung-actions {
    display: flex;
    gap: 4px;
}

.rung-actions button {
    background: transparent;
    border: none;
    color: var(--plc-text-dim);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
}

.rung-actions button:hover {
    background: var(--plc-border);
    color: var(--plc-text);
}

.rung-content {
    padding: 16px;
    min-height: 80px;
    display: flex;
    align-items: center;
}

.rung-rail-left, .rung-rail-right {
    width: 4px;
    background: var(--plc-wire);
    align-self: stretch;
    min-height: 60px;
}

.rung-rail-left.active, .rung-rail-right.active {
    background: var(--plc-wire-active);
    box-shadow: 0 0 8px var(--plc-accent-glow);
}

.rung-elements {
    flex: 1;
    display: flex;
    align-items: center;
    min-height: 60px;
    padding: 0 8px;
    position: relative;
}

.wire-segment {
    height: 2px;
    background: var(--plc-wire);
    flex: 1;
    min-width: 20px;
}

.wire-segment.active {
    background: var(--plc-wire-active);
    box-shadow: 0 0 4px var(--plc-accent-glow);
}

/* Ladder Elements */
.ladder-element {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.15s ease;
    position: relative;
}

.ladder-element:hover {
    background: rgba(0, 212, 170, 0.1);
}

.ladder-element.selected {
    background: rgba(0, 212, 170, 0.2);
    outline: 2px solid var(--plc-accent);
}

.ladder-element.dragging {
    opacity: 0.5;
    outline: 2px dashed var(--plc-accent);
}

.ladder-element[draggable="true"] {
    cursor: grab;
}

.ladder-element[draggable="true"]:active {
    cursor: grabbing;
}

.element-symbol {
    font-family: var(--plc-font-mono);
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    min-width: 60px;
    position: relative;
}

/* Contact Symbols */
.contact-no .element-symbol::before,
.contact-nc .element-symbol::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--plc-wire);
    left: 0;
}

.contact-no .element-symbol::after,
.contact-nc .element-symbol::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--plc-wire);
    right: 0;
}

.contact-symbol {
    width: 24px;
    height: 32px;
    border: 2px solid var(--plc-text);
    border-top: none;
    border-bottom: none;
    position: relative;
}

.contact-nc .contact-symbol::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--plc-text);
    transform: rotate(-45deg);
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -1px;
}

/* Coil Symbols */
.coil .element-symbol,
.coil-set .element-symbol,
.coil-reset .element-symbol {
    position: relative;
}

.coil-symbol {
    width: 28px;
    height: 28px;
    border: 2px solid var(--plc-text);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

/* Timer/Counter Boxes */
.timer-box, .counter-box, .compare-box {
    border: 2px solid var(--plc-text);
    padding: 4px 10px;
    font-size: 11px;
    min-width: 70px;
    text-align: center;
}

.timer-box .box-type,
.counter-box .box-type,
.compare-box .box-type {
    font-weight: 600;
    border-bottom: 1px solid var(--plc-border);
    padding-bottom: 2px;
    margin-bottom: 2px;
}

/* Compare box specific */
.compare-box {
    min-width: 50px;
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--plc-blue);
}

.compare-box .box-type {
    font-size: 14px;
    color: var(--plc-blue);
}

/* MOVE / NORM_X / SCALE_X */
.math-box {
    min-width: 90px;
    background: rgba(16, 185, 129, 0.08);
}

.math-box .box-pin {
    font-family: monospace;
    text-align: left;
    white-space: nowrap;
}

#box-config .box-pin-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
}

#box-config .box-pin-row label {
    min-width: 52px;
    margin: 0;
}

#box-config .box-pin-row input {
    width: 90px;
}

.plc-status-cycle {
    font-family: monospace;
    font-size: 11px;
    opacity: 0.8;
    margin-left: 6px;
}

/* CTUD box */
.ctud-box {
    min-width: 80px;
}

/* Edge detection contacts */
.contact-symbol.edge-p,
.contact-symbol.edge-n {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--plc-warning);
}

.contact-p .contact-symbol {
    border-color: var(--plc-warning);
}

.contact-n .contact-symbol {
    border-color: var(--plc-warning);
}

/* Element Active State */
.ladder-element.active .contact-symbol,
.ladder-element.active .coil-symbol {
    border-color: var(--plc-accent);
    box-shadow: 0 0 8px var(--plc-accent-glow);
}

.ladder-element.active .timer-box,
.ladder-element.active .math-box,
.ladder-element.active .counter-box,
.ladder-element.active .compare-box {
    border-color: var(--plc-accent);
    box-shadow: 0 0 8px var(--plc-accent-glow);
}

.element-address {
    font-family: var(--plc-font-mono);
    font-size: 10px;
    color: var(--plc-text-dim);
    margin-top: 4px;
}

.element-comment {
    font-size: 9px;
    color: var(--plc-text-dim);
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Branch */
.rung-branch {
    display: flex;
    flex-direction: column;
    position: relative;
    margin: 8px 0;
}

/* ==================== BRANCH TIA PORTAL STYLE ==================== */
.ladder-branch.tia-style {
    display: flex;
    align-items: stretch;
    position: relative;
    margin: 0 8px;
}

/* Linee verticali sinistra e destra */
.branch-vertical-left,
.branch-vertical-right {
    width: 2px;
    background: var(--plc-wire);
    position: relative;
}

.ladder-branch.tia-style.active .branch-vertical-left,
.ladder-branch.tia-style.active .branch-vertical-right {
    background: var(--plc-wire-active);
    box-shadow: 0 0 4px var(--plc-accent-glow);
}

/* Contenuto branch */
.branch-content {
    display: flex;
    flex-direction: column;
    min-width: 80px;
}

/* Singola riga del branch */
.branch-row {
    display: flex;
    align-items: center;
    min-height: 50px;
    position: relative;
}

/* Connettori orizzontali dal verticale al contenuto */
.branch-h-left,
.branch-h-right {
    width: 10px;
    height: 2px;
    background: var(--plc-wire);
}

.branch-row.first .branch-h-left,
.branch-row.first .branch-h-right {
    /* Prima riga: connettore in alto */
    align-self: flex-start;
    margin-top: 24px;
}

.branch-row.last .branch-h-left,
.branch-row.last .branch-h-right {
    /* Ultima riga: connettore in basso */
    align-self: flex-end;
    margin-bottom: 24px;
}

.branch-row:not(.first):not(.last) .branch-h-left,
.branch-row:not(.first):not(.last) .branch-h-right {
    /* Righe intermedie: connettore al centro */
    align-self: center;
}

/* Contenuto della riga (elementi) */
.branch-row-content {
    display: flex;
    align-items: center;
    flex: 1;
    min-height: 50px;
    padding: 4px 0;
}

/* Wire passante per righe vuote */
.wire-through {
    flex: 1;
    height: 2px;
    background: var(--plc-wire);
    min-width: 40px;
}

/* Wire orizzontale tra elementi */
.wire-h {
    width: 15px;
    height: 2px;
    background: var(--plc-wire);
}

/* Drop zone mini per rami vuoti */
.drop-zone-mini {
    width: 24px;
    height: 24px;
    border: 1px dashed var(--plc-border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--plc-text-dim);
    cursor: pointer;
    transition: all 0.15s ease;
    margin: 0 4px;
}

.drop-zone-mini:hover,
.drop-zone-mini.drag-over {
    border-color: var(--plc-accent);
    background: rgba(0, 212, 170, 0.1);
    color: var(--plc-accent);
}

/* Controlli branch TIA style */
.branch-controls-tia {
    position: absolute;
    top: -10px;
    right: -10px;
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity 0.15s ease;
    z-index: 20;
}

.ladder-branch.tia-style:hover > .branch-controls-tia {
    opacity: 1;
}

.branch-btn-add,
.branch-btn-del {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 1px solid var(--plc-border);
    background: var(--plc-bg-medium);
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.branch-btn-add {
    color: var(--plc-accent);
}

.branch-btn-add:hover {
    background: var(--plc-accent);
    color: #000;
}

.branch-btn-del {
    color: var(--plc-danger);
}

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

/* Branch annidati - colori differenziati */
.ladder-branch.tia-style[data-depth="1"] {
    background: rgba(0, 212, 170, 0.03);
    border-radius: 4px;
}

.ladder-branch.tia-style[data-depth="2"] {
    background: rgba(245, 158, 11, 0.03);
    border-radius: 4px;
}

.ladder-branch.tia-style[data-depth="3"] {
    background: rgba(147, 51, 234, 0.03);
    border-radius: 4px;
}

/* Multi-selezione */
.ladder-element.multi-selected {
    background: rgba(59, 130, 246, 0.2);
    outline: 2px solid var(--plc-blue);
}

/* Indicatore selezione multipla */
#selection-indicator {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--plc-blue);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    z-index: 1000;
    display: none;
}

/* Drop Zone */
.drop-zone {
    min-width: 60px;
    min-height: 50px;
    border: 2px dashed var(--plc-border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 8px;
    transition: all 0.15s ease;
}

.drop-zone.drag-over {
    border-color: var(--plc-accent);
    background: rgba(0, 212, 170, 0.1);
}

.drop-zone::after {
    content: '+';
    color: var(--plc-text-dim);
    font-size: 20px;
}

/* I/O Panel */
.plc-io-panel {
    background: var(--plc-bg-medium);
    border-left: 1px solid var(--plc-border);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.plc-io-panel .panel-content {
    padding: 0 16px 16px 16px;
}

.plc-io-section {
    margin-bottom: 20px;
}

.plc-io-section h3 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 12px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.io-indicator {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.io-indicator.input { background: var(--plc-input); }
.io-indicator.output { background: var(--plc-output); }
.io-indicator.memory { background: var(--plc-merker); }

.plc-io-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
}

.io-bit {
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    border-radius: 4px;
    padding: 8px 4px;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.io-bit:hover {
    border-color: var(--plc-text-dim);
}

.io-bit.active {
    background: var(--plc-success);
    border-color: var(--plc-success);
    color: #000;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.io-bit.input-bit.active {
    background: var(--plc-input);
    border-color: var(--plc-input);
    color: #fff;
    box-shadow: 0 0 8px rgba(37, 99, 235, 0.5);
}

.io-bit-label {
    font-family: var(--plc-font-mono);
    font-size: 10px;
    display: block;
}

.io-bit-state {
    font-family: var(--plc-font-mono);
    font-size: 14px;
    font-weight: 600;
    margin-top: 2px;
    display: block;
}

/* Timers Display */
.plc-timers, .plc-counters {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ==================== Analog I/O ==================== */
.io-indicator.analog-in { background: #f59e0b; }
.io-indicator.analog-out { background: #8b5cf6; }

.plc-analog-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.analog-io-item {
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    border-radius: 6px;
    padding: 10px;
}

.analog-io-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.analog-io-label {
    font-family: var(--plc-font-mono);
    font-size: 11px;
    color: var(--plc-text-dim);
}

.analog-io-value {
    font-family: var(--plc-font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--plc-accent);
}

.analog-io-eng {
    font-size: 10px;
    color: var(--plc-text-dim);
    margin-left: 4px;
}

.analog-slider-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.analog-slider {
    flex: 1;
    -webkit-appearance: none;
    height: 6px;
    background: var(--plc-border);
    border-radius: 3px;
    outline: none;
}

.analog-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--plc-accent);
    border-radius: 50%;
    cursor: pointer;
}

.analog-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--plc-accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.analog-bar {
    height: 6px;
    background: var(--plc-border);
    border-radius: 3px;
    overflow: hidden;
}

.analog-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--plc-accent), #f59e0b);
    transition: width 0.1s ease;
}

/* AQ output bar */
.analog-io-item.aq .analog-bar-fill {
    background: linear-gradient(90deg, #8b5cf6, #ec4899);
}

/* ==================== Hardware Config Modal ==================== */
.hardware-config {
    min-width: 500px;
}

.hardware-section {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--plc-border);
}

.hardware-section:last-of-type {
    border-bottom: none;
}

.hardware-section h3 {
    font-size: 13px;
    color: var(--plc-accent);
    margin: 0 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hardware-info {
    background: var(--plc-bg-dark);
    border-radius: 6px;
    padding: 12px;
    font-size: 12px;
    margin-top: 8px;
}

.hardware-info-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
}

.hardware-info-row span:first-child {
    color: var(--plc-text-dim);
}

.expansions-list {
    margin-bottom: 12px;
}

.expansion-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    border-radius: 6px;
    padding: 10px 12px;
    margin-bottom: 6px;
}

.expansion-item-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.expansion-item-icon {
    width: 32px;
    height: 32px;
    background: var(--plc-bg-light);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    color: var(--plc-accent);
}

.expansion-item-name {
    font-weight: 500;
}

.expansion-item-specs {
    font-size: 11px;
    color: var(--plc-text-dim);
}

.expansion-remove {
    background: transparent;
    border: none;
    color: var(--plc-danger);
    cursor: pointer;
    font-size: 18px;
    padding: 4px 8px;
    border-radius: 4px;
}

.expansion-remove:hover {
    background: rgba(239, 68, 68, 0.2);
}

.analog-summary {
    background: var(--plc-bg-dark);
    border-radius: 6px;
    padding: 12px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--plc-border);
}

.summary-row:last-child {
    border-bottom: none;
}

.summary-label {
    color: var(--plc-text-dim);
}

.summary-value {
    font-family: var(--plc-font-mono);
    font-weight: 600;
    color: var(--plc-accent);
}

.hw-errors:empty {
    display: none;
}

.hw-errors {
    margin-top: 12px;
    padding: 8px 10px;
    border: 1px solid var(--plc-danger);
    border-radius: 6px;
    color: var(--plc-danger);
    font-size: 12px;
}

.address-map {
    margin-top: 12px;
    font-family: var(--plc-font-mono);
    font-size: 11px;
}

.address-map-title {
    color: var(--plc-text-dim);
    margin-bottom: 6px;
}

.address-map-row {
    display: flex;
    gap: 8px;
    padding: 4px 0;
}

.address-map-row .addr {
    color: var(--plc-accent);
    min-width: 50px;
}

.address-map-row .desc {
    color: var(--plc-text-dim);
}

.timer-display, .counter-display {
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    border-radius: 4px;
    padding: 10px;
}

.timer-display.active, .counter-display.active {
    border-color: var(--plc-accent);
}

.timer-name, .counter-name {
    font-family: var(--plc-font-mono);
    font-size: 11px;
    color: var(--plc-text-dim);
}

.timer-value, .counter-value {
    font-family: var(--plc-font-mono);
    font-size: 18px;
    font-weight: 600;
    color: var(--plc-accent);
}

.timer-bar {
    height: 4px;
    background: var(--plc-border);
    border-radius: 2px;
    margin-top: 6px;
    overflow: hidden;
}

.timer-bar-fill {
    height: 100%;
    background: var(--plc-accent);
    width: 0%;
    transition: width 0.1s linear;
}

/* Modal */
.plc-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.plc-modal.active {
    display: flex;
}

.plc-modal-content {
    background: var(--plc-bg-medium);
    border: 1px solid var(--plc-border);
    border-radius: 12px;
    padding: 24px;
    min-width: 400px;
    max-width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.plc-modal-content h2 {
    margin: 0 0 20px 0;
    font-size: 18px;
}

.plc-form-group {
    margin-bottom: 16px;
}

.plc-form-group label {
    display: block;
    font-size: 12px;
    color: var(--plc-text-dim);
    margin-bottom: 6px;
}

.plc-form-group input,
.plc-form-group select {
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    color: var(--plc-text);
    padding: 8px 12px;
    border-radius: 4px;
    font-family: var(--plc-font-mono);
    font-size: 13px;
    margin-right: 4px;
}

.plc-form-group input:focus,
.plc-form-group select:focus {
    outline: none;
    border-color: var(--plc-accent);
}

.plc-modal-buttons {
    display: flex;
    gap: 8px;
    margin-top: 20px;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--plc-bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--plc-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--plc-text-dim);
}

/* Responsive */
@media (max-width: 1200px) {
    .plc-main {
        grid-template-columns: 180px 1fr 240px;
    }
}

@media (max-width: 900px) {
    .plc-main {
        grid-template-columns: 1fr;
    }
    
    .plc-toolbox, .plc-io-panel {
        display: none;
    }
}

/* ==================== Context Menu ==================== */
.plc-context-menu {
    position: fixed;
    background: #f5f5f5;
    border: 2px solid #00d4aa;
    border-radius: 8px;
    padding: 6px 0;
    min-width: 220px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 212, 170, 0.3);
    z-index: 2000;
    display: none;
}

.plc-context-menu.visible {
    display: block;
}

.context-menu-item {
    padding: 10px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 500;
    position: relative;
    transition: all 0.15s ease;
    color: #1e2228;
}

.context-menu-item:hover {
    background: #00d4aa;
    color: #000000;
}

.context-menu-item.danger {
    color: #dc2626;
}

.context-menu-item.danger:hover {
    background: #dc2626;
    color: #ffffff;
}

.ctx-icon {
    width: 20px;
    text-align: center;
    font-size: 15px;
}

.ctx-arrow {
    margin-left: auto;
    font-size: 10px;
    color: #666;
}

.context-menu-divider {
    height: 1px;
    background: #ccc;
    margin: 6px 0;
}

/* Submenu */
.context-submenu {
    position: absolute;
    left: 100%;
    top: 0;
    background: #f5f5f5;
    border: 2px solid #00d4aa;
    border-radius: 8px;
    padding: 6px 0;
    min-width: 180px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    display: none;
}

.context-menu-item:hover > .context-submenu {
    display: block;
}

.context-submenu-item {
    padding: 8px 16px;
    cursor: pointer;
    font-size: 12px;
    color: #1e2228;
    transition: all 0.15s ease;
}

.context-submenu-item:hover {
    background: #00d4aa;
    color: #000000;
}

.context-submenu-item:hover {
    background: var(--plc-bg-light);
    color: var(--plc-accent);
}

/* ==================== Rung Sections (Inputs/Outputs) ==================== */
.rung-content {
    padding: 16px;
    min-height: 80px;
    display: flex;
    align-items: center;
}

.rung-section {
    display: flex;
    flex-direction: column;
    position: relative;
}

.rung-inputs {
    flex: 1;
    min-width: 200px;
}

.rung-outputs {
    min-width: 150px;
}

.rung-inputs .rung-elements {
    justify-content: flex-start;
}

.rung-outputs .rung-elements {
    justify-content: flex-end;
}

.section-label {
    position: absolute;
    top: -18px;
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--plc-text-dim);
    opacity: 0.6;
}

.rung-inputs .section-label {
    left: 8px;
    color: var(--plc-input);
}

.rung-outputs .section-label {
    right: 8px;
    color: var(--plc-output);
}

.rung-connector {
    font-family: var(--plc-font-mono);
    color: var(--plc-wire);
    padding: 0 8px;
    display: flex;
    align-items: center;
    font-size: 12px;
    letter-spacing: -2px;
}

.rung-section .rung-elements {
    flex: 1;
    display: flex;
    align-items: center;
    min-height: 60px;
    padding: 0 4px;
    position: relative;
}

/* ==================== Buttons Disabled State ==================== */
.plc-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.plc-btn:disabled:hover {
    background: var(--plc-bg-light);
    border-color: var(--plc-border);
}

/* ==================== Rung Active States for Sections ==================== */
.rung-inputs.active .wire-segment,
.rung-outputs.active .wire-segment {
    background: var(--plc-wire-active);
    box-shadow: 0 0 4px var(--plc-accent-glow);
}

/* Visual separator between inputs and outputs */
.rung-connector::before,
.rung-connector::after {
    content: '';
    width: 20px;
    height: 2px;
    background: var(--plc-wire);
}

.rung-content.power-on .rung-connector::before,
.rung-content.power-on .rung-connector::after {
    background: var(--plc-wire-active);
}

/* ==================== HMI Panel ==================== */
.hmi-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 1400px;
    height: 100vh;
    background: var(--plc-bg-medium);
    border-left: 2px solid var(--plc-accent);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
    z-index: 1500;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
}

.hmi-panel.active {
    right: 0;
}

/* Modalità RUN: nasconde toolbar design */
.hmi-panel.run-mode #hmi-design-toolbar,
.hmi-panel.run-mode .hmi-pages-bar,
.hmi-panel.run-mode .hmi-model-selector {
    display: none !important;
}

.hmi-panel.run-mode .hmi-header {
    padding: 8px 16px;
}

.hmi-header {
    background: var(--plc-bg-light);
    padding: 12px 16px;
    border-bottom: 1px solid var(--plc-border);
}

.hmi-header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.hmi-header-top h2 {
    margin: 0;
    font-size: 16px;
    color: var(--plc-accent);
}

.hmi-header-top .panel-collapse-btn {
    background: transparent;
    border: 1px solid var(--plc-border);
    color: var(--plc-text);
    width: 28px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    transition: all 0.2s ease;
}

.hmi-header-top .panel-collapse-btn:hover {
    background: var(--plc-danger);
    border-color: var(--plc-danger);
    color: white;
}

.hmi-header h2 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: var(--plc-accent);
}

/* Nascondo h2 se c'è header-top */
.hmi-header-top + .hmi-toolbar .hmi-header h2 {
    display: none;
}

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

.hmi-toolbar .plc-btn {
    padding: 6px 10px;
    font-size: 11px;
}

.hmi-tool-icon {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-right: 4px;
    vertical-align: middle;
}

.led-icon {
    background: var(--plc-success);
    border-radius: 50%;
}

.btn-icon {
    background: var(--plc-blue);
    border-radius: 3px;
}

.switch-icon {
    background: linear-gradient(90deg, var(--plc-border) 50%, var(--plc-accent) 50%);
    border-radius: 6px;
}

.display-icon {
    background: #000;
    border: 1px solid var(--plc-accent);
}

.slider-icon {
    background: var(--plc-border);
    border-radius: 2px;
    position: relative;
}

.slider-icon::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    width: 4px;
    height: 100%;
    background: var(--plc-accent);
}

.gauge-icon {
    border: 2px solid var(--plc-accent);
    border-radius: 50%;
    border-bottom-color: transparent;
}

.hmi-canvas {
    flex: 1;
    padding: 0;
    overflow: auto;
    position: relative;
    background: 
        linear-gradient(rgba(61, 68, 81, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(61, 68, 81, 0.3) 1px, transparent 1px);
    background-size: 20px 20px;
    min-height: 400px;
}

/* ==================== HMI Model Selector ==================== */
.hmi-model-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 20px;
}

.hmi-model-selector label {
    font-size: 12px;
    color: var(--plc-text-dim);
}

.hmi-model-selector select {
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    color: var(--plc-text);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
}

.hmi-model-selector select:hover {
    border-color: var(--plc-accent);
}

/* ==================== HMI Device Container ==================== */
.hmi-device-container {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 20px;
    overflow: auto; /* scroll sia X che Y */
    background: #1e2228;
    min-height: 300px;
}

/* Centra solo se c'è spazio sufficiente */
@media (min-width: 1200px) {
    .hmi-device-container {
        align-items: center;
        justify-content: center;
    }
}

/* Wrapper per scalare HMI */
.hmi-device-wrapper {
    transform-origin: top left;
    transition: transform 0.2s ease;
}

/* ==================== HMI Device Frame ==================== */
.hmi-device {
    display: flex;
    flex-direction: column;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 
        0 10px 40px rgba(0,0,0,0.5),
        inset 0 1px 0 rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}

/* Basic series - grigio chiaro stile Siemens */
.hmi-device[data-model^="KTP"] {
    background: linear-gradient(180deg, #d8d8d8 0%, #c0c0c0 50%, #b0b0b0 100%);
    border: 4px solid #909090;
    box-shadow: 
        0 10px 40px rgba(0,0,0,0.5),
        inset 0 2px 0 rgba(255,255,255,0.3),
        inset 0 -2px 0 rgba(0,0,0,0.1),
        0 0 0 1px #808080;
}

/* Comfort series - nero/antracite elegante */
.hmi-device[data-model^="TP"] {
    background: linear-gradient(180deg, #404040 0%, #2a2a2a 50%, #1a1a1a 100%);
    border: 4px solid #0a0a0a;
    box-shadow: 
        0 10px 40px rgba(0,0,0,0.7),
        inset 0 2px 0 rgba(255,255,255,0.1),
        inset 0 -2px 0 rgba(0,0,0,0.3),
        0 0 0 1px #000;
}

/* Top bar con logo Siemens */
.hmi-device-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 15px;
    min-height: 30px;
}

.hmi-device[data-model^="KTP"] .hmi-device-top {
    background: linear-gradient(180deg, #e8e8e8 0%, #d0d0d0 100%);
    border-bottom: 1px solid #a0a0a0;
}

.hmi-device[data-model^="TP"] .hmi-device-top {
    background: linear-gradient(180deg, #404040 0%, #303030 100%);
    border-bottom: 1px solid #1a1a1a;
}

.hmi-device-logo {
    font-family: Arial, sans-serif;
    font-weight: bold;
    font-size: 16px;
    letter-spacing: 3px;
    text-shadow: 0 1px 0 rgba(255,255,255,0.3);
}

.hmi-device[data-model^="KTP"] .hmi-device-logo {
    color: #009999;
    text-shadow: 0 1px 0 rgba(255,255,255,0.5);
}

.hmi-device[data-model^="TP"] .hmi-device-logo {
    color: #00c8c8;
    text-shadow: 0 0 10px rgba(0,200,200,0.3);
}

.hmi-device-model-label {
    font-size: 10px;
    letter-spacing: 1px;
}

.hmi-device[data-model^="KTP"] .hmi-device-model-label {
    color: #666;
}

.hmi-device[data-model^="TP"] .hmi-device-model-label {
    color: #888;
}

/* Body principale */
.hmi-device-body {
    display: flex;
    align-items: stretch;
    padding: 10px;
    gap: 10px;
}

/* Screen container */
.hmi-device-screen {
    flex: 1;
    display: flex;
}

.hmi-screen-bezel {
    flex: 1;
    background: #0a0a0a;
    border-radius: 4px;
    padding: 6px;
    box-shadow: 
        inset 0 3px 8px rgba(0,0,0,0.8),
        inset 0 -1px 0 rgba(255,255,255,0.05),
        0 2px 4px rgba(0,0,0,0.3);
}

.hmi-screen-bezel .hmi-canvas {
    border-radius: 2px;
    min-height: auto;
    height: 100%;
    background-color: #1e2430;
    box-shadow: 
        inset 0 0 20px rgba(0,0,0,0.5),
        0 0 1px rgba(255,255,255,0.1);
}

/* ==================== Function Keys ==================== */
.hmi-fkeys {
    display: flex;
    gap: 6px;
}

.hmi-fkeys-left,
.hmi-fkeys-right {
    flex-direction: column;
    justify-content: space-around;
    padding: 5px 0;
}

.hmi-fkeys-bottom {
    flex-direction: row;
    justify-content: center;
    padding: 8px 15px;
}

.hmi-device[data-model^="KTP"] .hmi-fkeys-bottom {
    background: linear-gradient(180deg, #c8c8c8 0%, #b0b0b0 100%);
    border-top: 1px solid #a0a0a0;
}

.hmi-device[data-model^="TP"] .hmi-fkeys-bottom {
    display: none;
}

.hmi-device[data-model^="KTP"] .hmi-fkeys-left,
.hmi-device[data-model^="KTP"] .hmi-fkeys-right {
    display: none;
}

.hmi-fkey {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--plc-font-mono);
    font-size: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.1s ease;
    user-select: none;
}

/* Basic function keys - orizzontali in basso */
.hmi-fkeys-bottom .hmi-fkey {
    width: 50px;
    height: 28px;
    background: linear-gradient(180deg, #e0e0e0 0%, #c0c0c0 100%);
    border: 1px solid #909090;
    border-radius: 4px;
    color: #333;
    box-shadow: 
        0 2px 4px rgba(0,0,0,0.2),
        inset 0 1px 0 rgba(255,255,255,0.5);
}

.hmi-fkeys-bottom .hmi-fkey:hover {
    background: linear-gradient(180deg, #f0f0f0 0%, #d0d0d0 100%);
}

.hmi-fkeys-bottom .hmi-fkey:active {
    background: linear-gradient(180deg, #b0b0b0 0%, #c0c0c0 100%);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

/* Comfort function keys - verticali ai lati */
.hmi-fkeys-left .hmi-fkey,
.hmi-fkeys-right .hmi-fkey {
    width: 28px;
    height: 36px;
    background: linear-gradient(180deg, #505050 0%, #353535 100%);
    border: 1px solid #252525;
    border-radius: 3px;
    color: #aaa;
    box-shadow: 
        0 2px 4px rgba(0,0,0,0.3),
        inset 0 1px 0 rgba(255,255,255,0.1);
}

.hmi-fkeys-left .hmi-fkey:hover,
.hmi-fkeys-right .hmi-fkey:hover {
    background: linear-gradient(180deg, #606060 0%, #454545 100%);
    color: #fff;
}

.hmi-fkeys-left .hmi-fkey:active,
.hmi-fkeys-right .hmi-fkey:active {
    background: linear-gradient(180deg, #303030 0%, #404040 100%);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
}

.hmi-fkey.pressed {
    background: var(--plc-accent) !important;
    color: #000 !important;
}

/* Bottom label */
.hmi-device-bottom {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 15px;
    min-height: 24px;
}

.hmi-device[data-model^="KTP"] .hmi-device-bottom {
    background: linear-gradient(180deg, #b8b8b8 0%, #a0a0a0 100%);
}

.hmi-device[data-model^="TP"] .hmi-device-bottom {
    background: linear-gradient(180deg, #252525 0%, #1a1a1a 100%);
}

.hmi-device-model-name {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.hmi-device[data-model^="KTP"] .hmi-device-model-name {
    color: #555;
}

.hmi-device[data-model^="TP"] .hmi-device-model-name {
    color: #777;
}

/* ==================== HMI Model Sizes ==================== */
/* KTP400 Basic - 4.3" 480x272 */
.hmi-device[data-model="KTP400"] .hmi-canvas {
    width: 480px;
    height: 272px;
}

/* KTP700 Basic - 7" 800x480 */
.hmi-device[data-model="KTP700"] .hmi-canvas {
    width: 800px;
    height: 480px;
}

/* KTP900 Basic - 9" 800x480 */
.hmi-device[data-model="KTP900"] .hmi-canvas {
    width: 800px;
    height: 480px;
}

/* KTP1200 Basic - 12" 1280x800 */
.hmi-device[data-model="KTP1200"] .hmi-canvas {
    width: 1280px;
    height: 800px;
}

/* TP700 Comfort - 7" 800x480 */
.hmi-device[data-model="TP700"] .hmi-canvas {
    width: 800px;
    height: 480px;
}

/* TP900 Comfort - 9" 800x480 */
.hmi-device[data-model="TP900"] .hmi-canvas {
    width: 800px;
    height: 480px;
}

/* TP1200 Comfort - 12" 1280x800 */
.hmi-device[data-model="TP1200"] .hmi-canvas {
    width: 1280px;
    height: 800px;
}

/* TP1500 Comfort - 15" 1280x800 */
.hmi-device[data-model="TP1500"] .hmi-canvas {
    width: 1280px;
    height: 800px;
}

/* Scale per viewport piccoli */
@media (max-width: 1400px) {
    .hmi-device[data-model="KTP1200"] .hmi-canvas,
    .hmi-device[data-model="TP1200"] .hmi-canvas,
    .hmi-device[data-model="TP1500"] .hmi-canvas {
        transform: scale(0.8);
        transform-origin: top left;
    }
}

.hmi-empty-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--plc-text-dim);
    padding: 40px;
}

.hmi-empty-message p {
    margin: 8px 0;
}

/* HMI Elements - Posizionamento assoluto */
.hmi-element {
    position: absolute;
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    border-radius: 8px;
    padding: 8px;
    cursor: move;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    user-select: none;
}

.hmi-element:hover {
    border-color: var(--plc-accent);
    box-shadow: 0 0 10px var(--plc-accent-glow);
}

.hmi-element.selected {
    outline: 2px solid var(--plc-accent);
    z-index: 100;
}

.hmi-element.dragging {
    opacity: 0.8;
    z-index: 200;
    cursor: grabbing;
}

.hmi-element.resizing {
    z-index: 200;
}

/* Resize Handles */
.hmi-resize-handles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.hmi-element.selected .hmi-resize-handles,
.hmi-element:hover .hmi-resize-handles {
    opacity: 1;
}

.hmi-resize-handle {
    position: absolute;
    background: var(--plc-accent);
    pointer-events: auto;
}

.hmi-resize-se {
    right: -4px;
    bottom: -4px;
    width: 10px;
    height: 10px;
    cursor: se-resize;
    border-radius: 2px;
}

.hmi-resize-e {
    right: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 20px;
    cursor: e-resize;
    border-radius: 2px;
}

.hmi-resize-s {
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 6px;
    cursor: s-resize;
    border-radius: 2px;
}

.hmi-element-label {
    font-size: 10px;
    color: var(--plc-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    text-align: center;
}

.hmi-element-address {
    font-family: var(--plc-font-mono);
    font-size: 9px;
    color: var(--plc-text-dim);
    text-align: center;
    margin-top: 6px;
}

/* HMI LED */
.hmi-led {
    text-align: center;
}

.hmi-led-light {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 auto;
    background: #333;
    border: 3px solid #555;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.5);
    transition: all 0.1s ease;
}

.hmi-led-light.on {
    box-shadow: 
        inset 0 2px 4px rgba(255,255,255,0.3),
        0 0 20px currentColor;
}

.hmi-led-light.on.green { background: #22c55e; border-color: #16a34a; color: #22c55e; }
.hmi-led-light.on.red { background: #ef4444; border-color: #dc2626; color: #ef4444; }
.hmi-led-light.on.yellow { background: #eab308; border-color: #ca8a04; color: #eab308; }
.hmi-led-light.on.blue { background: #3b82f6; border-color: #2563eb; color: #3b82f6; }
.hmi-led-light.on.orange { background: #f97316; border-color: #ea580c; color: #f97316; }
.hmi-led-light.on.white { background: #f5f5f5; border-color: #e5e5e5; color: #f5f5f5; }

/* HMI Button */
.hmi-button {
    text-align: center;
}

.hmi-button-btn {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    margin: 0 auto;
    background: linear-gradient(180deg, #4a5568 0%, #2d3748 100%);
    border: 3px solid #718096;
    cursor: pointer;
    transition: all 0.1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--plc-text);
    font-weight: 600;
    font-size: 11px;
}

.hmi-button-btn:hover {
    background: linear-gradient(180deg, #5a6578 0%, #3d4758 100%);
}

.hmi-button-btn:active,
.hmi-button-btn.pressed {
    background: linear-gradient(180deg, #2d3748 0%, #1a202c 100%);
    border-color: var(--plc-accent);
    box-shadow: 0 0 15px var(--plc-accent-glow);
}

.hmi-button-btn.green:active, .hmi-button-btn.green.pressed { border-color: #22c55e; box-shadow: 0 0 15px rgba(34, 197, 94, 0.5); }
.hmi-button-btn.red:active, .hmi-button-btn.red.pressed { border-color: #ef4444; box-shadow: 0 0 15px rgba(239, 68, 68, 0.5); }
.hmi-button-btn.blue:active, .hmi-button-btn.blue.pressed { border-color: #3b82f6; box-shadow: 0 0 15px rgba(59, 130, 246, 0.5); }

/* HMI Switch */
.hmi-switch {
    text-align: center;
}

.hmi-switch-track {
    width: 60px;
    height: 30px;
    border-radius: 15px;
    margin: 0 auto;
    background: #333;
    border: 2px solid #555;
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
}

.hmi-switch-track.on {
    background: var(--plc-accent);
    border-color: #00b894;
}

.hmi-switch-knob {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #fff;
    position: absolute;
    top: 1px;
    left: 2px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hmi-switch-track.on .hmi-switch-knob {
    left: 32px;
}

/* HMI Display */
.hmi-display {
    text-align: center;
    min-width: 120px;
}

.hmi-display-screen {
    background: #000;
    border: 2px solid #333;
    border-radius: 4px;
    padding: 8px 12px;
    font-family: var(--plc-font-mono);
    font-size: 24px;
    color: #00ff00;
    text-shadow: 0 0 10px currentColor;
    min-width: 80px;
    text-align: right;
}

.hmi-display-screen.red { color: #ff0000; }
.hmi-display-screen.blue { color: #00aaff; }
.hmi-display-screen.yellow { color: #ffff00; }
.hmi-display-screen.white { color: #ffffff; }

/* HMI Slider */
.hmi-slider {
    text-align: center;
    min-width: 150px;
}

.hmi-slider-container {
    padding: 10px 0;
}

.hmi-slider-input {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--plc-border);
    outline: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.hmi-slider-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--plc-accent);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 212, 170, 0.5);
}

.hmi-slider-input::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--plc-accent);
    cursor: pointer;
    border: none;
}

.hmi-slider-value {
    font-family: var(--plc-font-mono);
    font-size: 18px;
    color: var(--plc-accent);
    margin-top: 6px;
}

/* HMI Gauge */
.hmi-gauge {
    text-align: center;
    min-width: 120px;
}

.hmi-gauge-container {
    width: 100px;
    height: 60px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.hmi-gauge-bg {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 8px solid var(--plc-border);
    border-bottom-color: transparent;
    border-left-color: transparent;
    transform: rotate(225deg);
    position: absolute;
    top: 0;
    left: 0;
}

.hmi-gauge-fill {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 8px solid var(--plc-accent);
    border-bottom-color: transparent;
    border-left-color: transparent;
    transform: rotate(225deg);
    position: absolute;
    top: 0;
    left: 0;
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
    transition: transform 0.3s ease;
}

.hmi-gauge-value {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--plc-font-mono);
    font-size: 16px;
    color: var(--plc-accent);
}

.hmi-gauge-label-min,
.hmi-gauge-label-max {
    position: absolute;
    bottom: 0;
    font-size: 9px;
    color: var(--plc-text-dim);
}

.hmi-gauge-label-min { left: 5px; }
.hmi-gauge-label-max { right: 5px; }

/* HMI Element Edit Badge */
.hmi-element::after {
    content: '...';
    position: absolute;
    top: 4px;
    right: 8px;
    font-size: 14px;
    color: var(--plc-text-dim);
    opacity: 0;
    transition: opacity 0.15s;
}

.hmi-element:hover::after {
    opacity: 1;
}

/* HMI Button Active State */
#btn-hmi.active {
    background: var(--plc-accent);
    color: #000;
}

/* HMI Snap Grid Checkbox */
.hmi-snap-label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--plc-text-dim);
    cursor: pointer;
}

.hmi-snap-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--plc-accent);
    cursor: pointer;
}

/* HMI Background Opacity Slider */
.hmi-opacity-group {
    display: flex;
    align-items: center;
}

.hmi-opacity-group input[type="range"] {
    width: 60px;
    height: 6px;
    -webkit-appearance: none;
    background: var(--plc-border);
    border-radius: 3px;
    cursor: pointer;
}

.hmi-opacity-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--plc-accent);
    cursor: pointer;
}

.hmi-opacity-group input[type="range"]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--plc-accent);
    border: none;
    cursor: pointer;
}

/* HMI Element responsive content */
.hmi-element .hmi-element-label {
    font-size: 10px;
    color: var(--plc-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.hmi-element .hmi-element-address {
    font-family: var(--plc-font-mono);
    font-size: 9px;
    color: var(--plc-text-dim);
    text-align: center;
    margin-top: 4px;
}

/* Adatta elementi al resize */
.hmi-led .hmi-led-light {
    width: 50%;
    max-width: 50px;
    aspect-ratio: 1;
}

.hmi-button .hmi-button-btn {
    width: 80%;
    padding: 8px 12px;
}

.hmi-display .hmi-display-screen {
    width: 90%;
    font-size: clamp(14px, 4vw, 24px);
}

.hmi-slider .hmi-slider-container {
    width: 90%;
}

.hmi-gauge .hmi-gauge-container {
    width: 80%;
    max-width: 100px;
}

/* ==================== HMI Simboli Industriali ==================== */

/* Icone toolbar */
.motor-icon {
    border: 2px solid var(--plc-accent);
    border-radius: 50%;
}

.valve-icon {
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 10px solid var(--plc-accent);
}

.pump-icon {
    border: 2px solid var(--plc-accent);
    border-radius: 50%;
    position: relative;
}

.pump-icon::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    background: var(--plc-accent);
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.tank-icon {
    border: 2px solid var(--plc-accent);
    border-radius: 2px;
    position: relative;
}

.tank-icon::after {
    content: '';
    position: absolute;
    bottom: 1px;
    left: 1px;
    right: 1px;
    height: 50%;
    background: var(--plc-accent);
    opacity: 0.5;
}

.conveyor-icon {
    background: linear-gradient(0deg, var(--plc-accent) 20%, transparent 20%, transparent 80%, var(--plc-accent) 80%);
    border-radius: 6px;
}

.light-icon {
    background: linear-gradient(180deg, #ef4444 30%, #f59e0b 30% 60%, #22c55e 60%);
    border-radius: 3px;
}

/* Motor */
.hmi-motor {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.hmi-motor-svg {
    width: 80%;
    max-width: 60px;
    color: var(--plc-text-dim);
    transition: color 0.3s ease;
}

.hmi-motor.running .hmi-motor-svg {
    color: var(--plc-success);
}

.hmi-motor.running .hmi-motor-rotor {
    animation: motor-spin 0.5s linear infinite;
    transform-origin: 30px 30px;
}

@keyframes motor-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Valve */
.hmi-valve {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.hmi-valve-svg {
    width: 70%;
    max-width: 40px;
    color: var(--plc-danger);
    transition: color 0.3s ease;
}

.hmi-valve.open .hmi-valve-svg {
    color: var(--plc-success);
}

.hmi-valve.open .hmi-valve-svg polygon {
    fill: rgba(34, 197, 94, 0.3);
}

/* Pump */
.hmi-pump {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.hmi-pump-svg {
    width: 80%;
    max-width: 60px;
    color: var(--plc-text-dim);
    transition: color 0.3s ease;
}

.hmi-pump.running .hmi-pump-svg {
    color: var(--plc-success);
}

.hmi-pump.running .hmi-pump-impeller {
    animation: pump-spin 0.3s linear infinite;
    transform-origin: 30px 30px;
}

@keyframes pump-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Tank */
.hmi-tank {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    position: relative;
}

.hmi-tank-svg {
    width: 80%;
    max-width: 60px;
    color: var(--plc-text);
}

.hmi-tank-fill {
    fill: var(--plc-blue);
    opacity: 0.6;
    transition: all 0.3s ease;
}

.hmi-tank-value {
    position: absolute;
    bottom: 5px;
    font-family: var(--plc-font-mono);
    font-size: 12px;
    color: var(--plc-accent);
}

/* Conveyor */
.hmi-conveyor {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
}

.hmi-conveyor-svg {
    width: 90%;
    max-width: 120px;
    color: var(--plc-text-dim);
    transition: color 0.3s ease;
}

.hmi-conveyor.running .hmi-conveyor-svg {
    color: var(--plc-success);
}

.hmi-conveyor.running .hmi-conveyor-arrow {
    animation: conveyor-move 1s linear infinite;
}

@keyframes conveyor-move {
    from { stroke-dashoffset: 20; }
    to { stroke-dashoffset: 0; }
}

.hmi-conveyor-arrow {
    stroke-dasharray: 10 10;
}

/* Traffic Light / Semaforo */
.hmi-light {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    flex: 1;
    padding: 4px;
    background: #333;
    border-radius: 8px;
}

.hmi-light-lamp {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.hmi-light-lamp.red {
    background: #4a1515;
    box-shadow: none;
}

.hmi-light-lamp.red.on {
    background: #ef4444;
    box-shadow: 0 0 15px #ef4444;
}

.hmi-light-lamp.yellow {
    background: #4a4015;
    box-shadow: none;
}

.hmi-light-lamp.yellow.on {
    background: #f59e0b;
    box-shadow: 0 0 15px #f59e0b;
}

.hmi-light-lamp.green {
    background: #154a15;
    box-shadow: none;
}

.hmi-light-lamp.green.on {
    background: #22c55e;
    box-shadow: 0 0 15px #22c55e;
}

/* ==================== HMI Bargraph e Testo ==================== */

/* Icone toolbar */
.bargraph-icon {
    background: linear-gradient(0deg, var(--plc-accent) 60%, transparent 60%);
    border: 1px solid var(--plc-accent);
}

.text-icon {
    font-family: serif;
    font-size: 10px;
    font-weight: bold;
    color: var(--plc-accent);
    line-height: 12px;
    text-align: center;
}

.text-icon::after {
    content: 'T';
}

/* Bargraph */
.hmi-bargraph {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    width: 100%;
    padding: 4px;
}

.hmi-bargraph-container {
    display: flex;
    flex: 1;
    width: 100%;
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    min-height: 60px;
}

.hmi-bargraph-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0%;
    transition: height 0.2s ease;
}

.hmi-bargraph-fill.green {
    background: linear-gradient(0deg, #22c55e, #4ade80);
}

.hmi-bargraph-fill.blue {
    background: linear-gradient(0deg, #3b82f6, #60a5fa);
}

.hmi-bargraph-fill.red {
    background: linear-gradient(0deg, #ef4444, #f87171);
}

.hmi-bargraph-fill.yellow {
    background: linear-gradient(0deg, #f59e0b, #fbbf24);
}

.hmi-bargraph-ticks {
    position: absolute;
    right: 2px;
    top: 2px;
    bottom: 2px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    font-size: 8px;
    color: var(--plc-text-dim);
    pointer-events: none;
}

.hmi-bargraph-value {
    font-family: var(--plc-font-mono);
    font-size: 12px;
    color: var(--plc-accent);
    margin-top: 4px;
}

/* Testo Dinamico */
.hmi-text {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    width: 100%;
    padding: 4px;
}

.hmi-text-content {
    font-family: var(--plc-font-mono);
    font-size: 14px;
    color: var(--plc-text);
    text-align: center;
    word-break: break-word;
}

/* ==================== HMI Multi-Pagina ==================== */

.hmi-pages-bar {
    display: flex;
    align-items: center;
    background: var(--plc-bg-dark);
    border-bottom: 1px solid var(--plc-border);
    padding: 4px 8px;
    gap: 4px;
    overflow-x: auto;
}

.hmi-pages-tabs {
    display: flex;
    gap: 4px;
    flex: 1;
    overflow-x: auto;
}

.hmi-page-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--plc-bg-light);
    border: 1px solid var(--plc-border);
    border-radius: 4px 4px 0 0;
    cursor: pointer;
    font-size: 12px;
    color: var(--plc-text-dim);
    white-space: nowrap;
    transition: all 0.15s ease;
}

.hmi-page-tab:hover {
    background: var(--plc-bg-medium);
    color: var(--plc-text);
}

.hmi-page-tab.active {
    background: var(--plc-accent);
    border-color: var(--plc-accent);
    color: #000;
    font-weight: 600;
}

.hmi-page-name {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hmi-page-delete {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    padding: 0 2px;
    opacity: 0.6;
}

.hmi-page-delete:hover {
    opacity: 1;
}

.hmi-page-tab.active .hmi-page-delete:hover {
    color: var(--plc-danger);
}

.hmi-add-page-btn {
    padding: 4px 10px !important;
    font-size: 16px !important;
    line-height: 1 !important;
}

/* ==================== TREND GRAPH ==================== */
.hmi-trend {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.hmi-trend-label {
    font-size: 10px;
    color: var(--plc-text-dim);
    padding: 4px;
}

.hmi-trend-canvas {
    flex: 1;
    background: #000;
    border: 1px solid var(--plc-border);
    border-radius: 4px;
}

.trend-icon {
    width: 12px;
    height: 12px;
    border: 2px solid var(--plc-accent);
    border-radius: 2px;
    position: relative;
}

.trend-icon::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 1px;
    width: 8px;
    height: 4px;
    border-bottom: 2px solid var(--plc-accent);
    border-left: 2px solid var(--plc-accent);
    transform: skewY(-20deg);
}

/* ==================== ALARM SYSTEM ==================== */
.alarm-icon {
    width: 12px;
    height: 12px;
    background: var(--plc-danger);
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
}

.alarm-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--plc-danger);
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse-badge 1s ease infinite;
}

@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Pannello Allarmi */
.alarm-panel {
    position: fixed;
    top: 60px;
    right: -450px;
    width: 450px;
    height: calc(100vh - 60px);
    background: var(--plc-bg-medium);
    border-left: 2px solid var(--plc-danger);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
    z-index: 1600;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
}

.alarm-panel.active {
    right: 0;
}

.alarm-header {
    background: linear-gradient(180deg, #3d2626 0%, #2d1a1a 100%);
    padding: 12px 16px;
    border-bottom: 1px solid var(--plc-border);
}

.alarm-header h2 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: var(--plc-danger);
    display: flex;
    align-items: center;
    gap: 8px;
}

.alarm-header h2::before {
    content: '';
    width: 12px;
    height: 12px;
    background: var(--plc-danger);
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
    animation: flash-alarm 0.5s ease infinite;
}

@keyframes flash-alarm {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.alarm-toolbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

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

.alarm-section {
    margin-bottom: 20px;
}

.alarm-section h3 {
    font-size: 12px;
    color: var(--plc-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 10px 0;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--plc-border);
}

/* Lista allarmi attivi */
.alarm-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.alarm-item {
    background: var(--plc-bg-dark);
    border-left: 4px solid;
    border-radius: 4px;
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slide-in-alarm 0.3s ease;
}

@keyframes slide-in-alarm {
    from { transform: translateX(20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.alarm-item.high { border-color: var(--plc-danger); }
.alarm-item.medium { border-color: var(--plc-warning); }
.alarm-item.low { border-color: #eab308; }
.alarm-item.info { border-color: var(--plc-blue); }

.alarm-item.unacked {
    animation: blink-alarm 1s ease infinite;
}

@keyframes blink-alarm {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.alarm-item.acked {
    opacity: 0.7;
}

.alarm-icon-small {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.alarm-item.high .alarm-icon-small { color: var(--plc-danger); }
.alarm-item.medium .alarm-icon-small { color: var(--plc-warning); }
.alarm-item.low .alarm-icon-small { color: #eab308; }
.alarm-item.info .alarm-icon-small { color: var(--plc-blue); }

.alarm-details {
    flex: 1;
}

.alarm-msg {
    font-size: 13px;
    font-weight: 500;
}

.alarm-time {
    font-size: 10px;
    color: var(--plc-text-dim);
    font-family: var(--plc-font-mono);
    margin-top: 2px;
}

.alarm-var {
    font-family: var(--plc-font-mono);
    font-size: 10px;
    color: var(--plc-accent);
}

.alarm-ack-btn {
    background: transparent;
    border: 1px solid var(--plc-border);
    color: var(--plc-text-dim);
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    transition: all 0.15s;
}

.alarm-ack-btn:hover {
    border-color: var(--plc-accent);
    color: var(--plc-accent);
}

.alarm-empty {
    color: var(--plc-text-dim);
    font-style: italic;
    padding: 20px;
    text-align: center;
}

/* Lista configurazione allarmi */
.alarm-config-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.alarm-config-item {
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    border-radius: 4px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.15s;
}

.alarm-config-item:hover {
    border-color: var(--plc-accent);
}

.alarm-config-item .alarm-priority-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.alarm-config-item .alarm-priority-dot.high { background: var(--plc-danger); }
.alarm-config-item .alarm-priority-dot.medium { background: var(--plc-warning); }
.alarm-config-item .alarm-priority-dot.low { background: #eab308; }
.alarm-config-item .alarm-priority-dot.info { background: var(--plc-blue); }

.alarm-config-item .config-msg {
    flex: 1;
    font-size: 12px;
}

.alarm-config-item .config-var {
    font-family: var(--plc-font-mono);
    font-size: 10px;
    color: var(--plc-text-dim);
}

.alarm-config-item .config-enabled {
    color: var(--plc-success);
    font-size: 14px;
}

.alarm-config-item .config-disabled {
    color: var(--plc-text-dim);
    font-size: 14px;
}

/* Storico allarmi */
.alarm-history {
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.alarm-history-item {
    font-size: 11px;
    padding: 6px 10px;
    background: var(--plc-bg-dark);
    border-radius: 4px;
    display: flex;
    gap: 8px;
    align-items: center;
}

.alarm-history-item .hist-time {
    font-family: var(--plc-font-mono);
    font-size: 9px;
    color: var(--plc-text-dim);
    min-width: 60px;
}

.alarm-history-item .hist-type {
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 3px;
    min-width: 40px;
    text-align: center;
}

.alarm-history-item .hist-type.in { background: var(--plc-danger); color: #fff; }
.alarm-history-item .hist-type.out { background: var(--plc-success); color: #fff; }
.alarm-history-item .hist-type.ack { background: var(--plc-blue); color: #fff; }

.alarm-history-item .hist-msg {
    flex: 1;
    color: var(--plc-text);
}

/* Modal Allarme */
#alarm-config-modal .plc-modal-content {
    max-width: 400px;
}

#alarm-condition + #alarm-threshold {
    margin-left: 8px;
}


/* ==================== IMPIANTO VIRTUALE (Scene) ==================== */
.scene-panel {
    display: none;
    position: fixed;
    top: 60px;
    right: 0;
    width: 900px;
    max-width: 95vw;
    height: calc(100vh - 60px);
    background: var(--plc-bg-dark);
    border-left: 2px solid var(--plc-accent);
    z-index: 900;
    flex-direction: column;
    box-shadow: -4px 0 20px rgba(0,0,0,0.5);
}

.scene-panel.active {
    display: flex;
}

.scene-header {
    background: linear-gradient(90deg, var(--plc-bg-medium), var(--plc-bg-light));
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--plc-border);
}

.scene-header h3 {
    margin: 0;
    font-size: 16px;
    color: var(--plc-accent);
}

.scene-header-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.scene-header-controls select {
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    color: var(--plc-text);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 12px;
}

.plc-btn-small {
    padding: 4px 8px;
    font-size: 14px;
}

.scene-toolbar {
    background: var(--plc-bg-medium);
    padding: 10px 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
    border-bottom: 1px solid var(--plc-border);
}

.scene-tools-label {
    font-size: 11px;
    color: var(--plc-text-dim);
    margin-right: 8px;
}

.scene-tool {
    width: 44px;
    height: 44px;
    background: var(--plc-bg-dark);
    border: 1px solid var(--plc-border);
    border-radius: 6px;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}

.scene-tool:hover {
    border-color: var(--plc-accent);
    background: rgba(0, 212, 170, 0.1);
    transform: scale(1.05);
}

.scene-tool:active {
    cursor: grabbing;
}

.scene-tool svg {
    width: 36px;
    height: 36px;
}

.scene-canvas-container {
    flex: 1;
    position: relative;
    overflow: auto;
    background: #1e2228;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.scene-canvas {
    width: 800px;
    height: 500px;
    min-width: 800px;
    min-height: 500px;
    display: block;
    border: 1px solid var(--plc-border);
    border-radius: 4px;
}

.scene-empty-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--plc-text-dim);
    pointer-events: none;
}

.scene-empty-message p {
    margin: 8px 0;
    font-size: 14px;
}

.scene-empty-message.hidden {
    display: none;
}

/* Elementi animati nella scena */
.scene-element {
    cursor: pointer;
    transition: filter 0.1s ease;
}

.scene-element:hover {
    filter: brightness(1.2);
}

.scene-element.selected {
    filter: drop-shadow(0 0 8px var(--plc-accent));
}

.scene-element.active {
    filter: drop-shadow(0 0 6px #22c55e);
}

/* Animazioni specifiche */
@keyframes conveyor-move {
    0% { transform: translateX(0); }
    100% { transform: translateX(20px); }
}

@keyframes motor-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pump-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes valve-flow {
    0% { stroke-dashoffset: 20; }
    100% { stroke-dashoffset: 0; }
}

@keyframes sensor-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes robot-move {
    0%, 100% { transform: rotate(-20deg); }
    50% { transform: rotate(20deg); }
}

@keyframes light-glow {
    0%, 100% { filter: drop-shadow(0 0 3px currentColor); }
    50% { filter: drop-shadow(0 0 10px currentColor); }
}

@keyframes box-move {
    0% { transform: translateX(0); }
    100% { transform: translateX(100px); }
}

@keyframes liquid-wave {
    0%, 100% { d: path("M0,5 Q5,0 10,5 T20,5"); }
    50% { d: path("M0,5 Q5,10 10,5 T20,5"); }
}

/* Nastro trasportatore animato */
.conveyor-belt.running .belt-surface {
    animation: conveyor-move 0.3s linear infinite;
}

.conveyor-belt.running {
    filter: brightness(1.2);
}

/* Motore rotante */
.motor-rotor.running {
    animation: motor-spin 0.5s linear infinite;
    transform-origin: center;
}

/* Pompa pulsante */
.pump-body.running {
    animation: pump-pulse 0.5s ease-in-out infinite;
}

/* Valvola aperta */
.valve-body.open {
    fill: #27ae60;
}

.valve-body.closed {
    fill: #c0392b;
}

/* Sensore attivo */
.sensor-beam.active {
    animation: sensor-blink 0.5s ease-in-out infinite;
    fill: #f39c12;
}

/* Robot in movimento */
.robot-arm.moving {
    animation: robot-move 1s ease-in-out infinite;
    transform-origin: bottom center;
}

/* Lampade */
.light-bulb.on {
    animation: light-glow 1s ease-in-out infinite;
}

.light-red.on { fill: #e74c3c; }
.light-yellow.on { fill: #f1c40f; }
.light-green.on { fill: #27ae60; }

.light-red.off, .light-yellow.off, .light-green.off {
    fill: #333;
}

/* Tank level */
.tank-level {
    transition: height 0.3s ease, y 0.3s ease;
    fill: url(#tank-gradient);
}

/* Pipe flow */
.pipe-flow.active {
    fill: url(#flow-pattern);
}

/* Box/Product */
.product-box.moving {
    animation: box-move 2s linear;
}


/* ==================== Toast Notification ==================== */
.plc-toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--plc-accent);
    color: #000;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 4px 20px rgba(0, 212, 170, 0.4);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 3000;
}

.plc-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* No analog placeholder */
.no-analog {
    color: var(--plc-text-dim);
    font-size: 12px;
    font-style: italic;
    padding: 8px 0;
}


/* ==================== Footer Credits ==================== */
.plc-footer {
    background: var(--plc-bg-dark);
    border-top: 1px solid var(--plc-border);
    padding: 10px 20px;
    flex-shrink: 0;
}

.plc-footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--plc-text-dim);
}

.plc-footer a {
    color: var(--plc-accent);
    text-decoration: none;
}

.plc-footer a:hover {
    text-decoration: underline;
}

.plc-footer-version {
    color: var(--plc-text-dim);
    font-size: 11px;
}

/* Nascondo footer in fullscreen */
.plc-container.fullscreen .plc-footer {
    display: none;
}

/* ==================== HMI RUN Mode Overlay ==================== */
.hmi-run-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    display: none;
    flex-direction: column;
}

.hmi-run-overlay.active {
    display: flex;
}

.hmi-run-header {
    background: var(--plc-bg-light);
    padding: 8px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--plc-accent);
}

.hmi-run-header h3 {
    margin: 0;
    color: var(--plc-accent);
    font-size: 14px;
}

.hmi-run-close {
    background: transparent;
    border: 1px solid var(--plc-border);
    color: var(--plc-text);
    padding: 4px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

.hmi-run-close:hover {
    background: var(--plc-danger);
    border-color: var(--plc-danger);
}

.hmi-run-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow: auto;
}

/* ==================== Layout RUN con HMI ==================== */
.plc-container.run-with-hmi .plc-main {
    flex-direction: column;
}

.plc-container.run-with-hmi .plc-workspace {
    flex: 0 0 auto;
    max-height: 40vh;
    overflow: auto;
}

.plc-container.run-with-hmi .hmi-inline-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1e2228;
    border-top: 2px solid var(--plc-accent);
    padding: 20px;
    overflow: auto;
}

/* ==================== HMI Zoom Controls ==================== */
.hmi-zoom-control {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
    margin-right: 15px;
}

.hmi-zoom-control label {
    font-size: 12px;
    color: var(--plc-text-dim);
}

#hmi-zoom-value {
    font-family: var(--plc-font-mono);
    font-size: 12px;
    color: var(--plc-accent);
    min-width: 45px;
    text-align: center;
}

.plc-btn-sm {
    padding: 4px 8px !important;
    font-size: 14px !important;
    min-width: 28px;
}

/* Nascondo zoom control in RUN mode */
.hmi-panel.run-mode .hmi-zoom-control {
    display: flex !important; /* Zoom visibile anche in RUN */
}

/* ==================== Fkey Configuration ==================== */
.hmi-fkey.configured {
    background: linear-gradient(180deg, #2a6a4a 0%, #1a4a3a 100%) !important;
    border-color: #00d4aa !important;
    color: #00d4aa !important;
}

.hmi-fkeys-bottom .hmi-fkey.configured {
    background: linear-gradient(180deg, #d0e8d8 0%, #a0c8b0 100%) !important;
    border-color: #009977 !important;
    color: #007755 !important;
}

.hmi-fkey.configured:hover {
    box-shadow: 0 0 8px rgba(0, 212, 170, 0.5);
}

#fkey-config-label {
    width: 80px;
    text-align: center;
    font-weight: bold;
    text-transform: uppercase;
}

#fkey-config-modal small {
    color: var(--plc-text-dim);
    font-size: 11px;
    margin-left: 10px;
}

#fkey-config-title {
    color: var(--plc-accent);
}

/* Scene hint */
.scene-hint {
    margin-top: 15px;
    padding: 10px;
    background: rgba(0, 212, 170, 0.1);
    border-radius: 6px;
    font-size: 13px;
    color: var(--plc-accent);
}

/* Scene element tooltip on hover */
.scene-element-group {
    cursor: pointer;
}

.scene-element-group:hover {
    filter: brightness(1.2);
}

.scene-element-group.selected {
    filter: drop-shadow(0 0 5px var(--plc-accent));
}

/* HMI hint */
.hmi-hint {
    margin-top: 15px;
    padding: 10px;
    background: rgba(0, 212, 170, 0.1);
    border-radius: 6px;
    font-size: 12px;
    color: var(--plc-accent);
}