/* ============================================
   ARC_SYSTEMS // TERMINAL v2.1 // STYLESHEET
   ============================================ */

:root {
    --mono-main: #e0e0e0;
    --mono-dim: #888888;
    --mono-dark: #222222;
    --mono-bg: #0a0a0a;
    --mono-accent: #ffffff;
    --scanline: rgba(255, 255, 255, 0.02);
    --wire-color: #ffffff;
    --wire-active: #cccccc;
    --grid-size: 15px;
    --node-bg: rgba(10, 10, 10, 0.95);
    --port-size: 10px;
    --selection-color: #ffffff;
}

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

body {
    background: var(--mono-bg);
    color: var(--mono-main);
    font-family: 'Share Tech Mono', 'Courier New', monospace;
    overflow: hidden;
    user-select: none;
    letter-spacing: 0.5px;
    height: 100vh;
    width: 100vw;
}

/* Scanlines overlay */
.scanlines {
    pointer-events: none;
    position: fixed;
    inset: 0;
    background: linear-gradient(var(--scanline) 50%, transparent 50%);
    background-size: 100% 4px;
    z-index: 9999;
}

/* ---- TOP BAR ---- */
#ui-layer {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 200;
    font-size: 11px;
    font-weight: bold;
    color: var(--mono-dim);
    text-transform: uppercase;
    text-shadow: 0 0 5px rgba(255,255,255,0.2);
    padding: 8px 15px;
    background: rgba(10,10,10,0.85);
    border-bottom: 1px solid var(--mono-dark);
    display: flex;
    gap: 20px;
    align-items: center;
    backdrop-filter: blur(4px);
}

#node-count, #conn-count {
    font-size: 9px;
    color: var(--mono-dim);
    opacity: 0.7;
}

/* ---- TOOLBAR ---- */
#toolbar {
    position: fixed;
    left: 0;
    top: 30px;
    width: 220px;
    height: calc(100vh - 30px);
    overflow-y: auto;
    border-right: 1px solid var(--mono-dark);
    background: rgba(10, 10, 10, 0.92);
    z-index: 150;
    padding: 10px;
    backdrop-filter: blur(4px);
}

#toolbar::-webkit-scrollbar { width: 4px; }
#toolbar::-webkit-scrollbar-thumb { background: var(--mono-dim); }
#toolbar::-webkit-scrollbar-track { background: transparent; }

#node-search {
    width: 100%;
    background: var(--mono-dark);
    color: var(--mono-main);
    border: 1px solid var(--mono-dim);
    font-family: inherit;
    font-size: 10px;
    padding: 6px 8px;
    outline: none;
    letter-spacing: 1px;
    margin-bottom: 5px;
}
#node-search:focus { border-color: var(--mono-main); }
#node-search::placeholder { color: var(--mono-dim); opacity: 0.6; }

.toolbar-group { margin-bottom: 12px; }
.toolbar-group.hidden { display: none; }
.toolbar-group-title {
    font-size: 10px;
    margin-bottom: 5px;
    border-bottom: 1px solid var(--mono-dark);
    padding-bottom: 3px;
    color: var(--mono-dim);
}

button.qol-btn {
    background: var(--mono-dark);
    color: var(--mono-main);
    border: 1px solid var(--mono-dim);
    font-family: inherit;
    font-size: 9px;
    padding: 5px 8px;
    outline: none;
    cursor: pointer;
    margin-bottom: 3px;
    width: 100%;
    text-align: left;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.1s;
}
button.qol-btn:hover { background: var(--mono-main); color: var(--mono-bg); }
button.qol-btn kbd {
    font-size: 8px;
    opacity: 0.5;
    font-family: inherit;
}

button.node-btn {
    background: transparent;
    border: 1px solid transparent;
    border-left: 2px solid var(--mono-dark);
    color: var(--mono-main);
    width: 100%;
    padding: 4px 8px;
    margin-bottom: 2px;
    font-family: inherit;
    font-size: 10px;
    cursor: pointer;
    text-align: left;
    transition: all 0.1s;
}
button.node-btn:hover {
    border-left-color: var(--mono-main);
    background: rgba(255,255,255,0.05);
}
button.node-btn.hidden { display: none; }

/* ---- CANVAS ---- */
#node-canvas {
    position: absolute;
    top: 30px;
    left: 220px;
    right: 0;
    bottom: 0;
    overflow: hidden;
    cursor: default;
}

#canvas-inner {
    position: absolute;
    width: 8000px;
    height: 8000px;
    transform-origin: 0 0;
    background-image:
        linear-gradient(to right, #151515 1px, transparent 1px),
        linear-gradient(to bottom, #151515 1px, transparent 1px);
    background-size: var(--grid-size) var(--grid-size);
}

#node-canvas.panning { cursor: grabbing; }

svg#wires {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.wire-path {
    fill: none;
    stroke: var(--wire-color);
    stroke-width: 2px;
    stroke-dasharray: 4 4;
    opacity: 0.5;
    transition: opacity 0.15s;
}
.wire-path:hover { opacity: 1; }
.wire-path-active {
    fill: none;
    stroke: var(--wire-active);
    stroke-width: 2px;
    stroke-dasharray: 6 3;
    opacity: 0.8;
}
.wire-hit {
    fill: none;
    stroke: transparent;
    stroke-width: 14px;
    pointer-events: stroke;
    cursor: pointer;
}

/* ---- NODES ---- */
.node {
    position: absolute;
    width: 210px;
    background: var(--node-bg);
    border: 1px solid var(--mono-dim);
    z-index: 10;
    box-shadow: 4px 4px 0px rgba(255, 255, 255, 0.05);
    transition: border-color 0.1s, box-shadow 0.15s;
}
.node:hover { border-color: var(--mono-main); z-index: 11; }
.node.selected {
    border-color: var(--selection-color);
    box-shadow: 0 0 0 1px var(--selection-color), 4px 4px 0px rgba(255, 255, 255, 0.08);
    z-index: 12;
}

.node header {
    background: var(--mono-main);
    color: var(--mono-bg);
    font-weight: 900;
    padding: 4px 8px;
    font-size: 10px;
    cursor: move;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 4px;
}
.node header .node-type-badge {
    font-size: 7px;
    opacity: 0.5;
    font-weight: normal;
}

.close-btn { cursor: pointer; transition: color 0.2s; font-size: 11px; }
.close-btn:hover { color: #ff0000; }

.node-content {
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.node-content label {
    font-size: 9px;
    text-transform: uppercase;
    color: var(--mono-dim);
    display: flex;
    justify-content: space-between;
}
.node-content .val-display {
    font-size: 9px;
    color: var(--mono-main);
    min-width: 28px;
    text-align: right;
}

/* ---- PORTS ---- */
.port {
    width: var(--port-size);
    height: var(--port-size);
    background: var(--mono-bg);
    border: 1px solid var(--mono-main);
    position: absolute;
    cursor: crosshair;
    z-index: 20;
    transition: background 0.15s, transform 0.1s;
}
.port:hover {
    background: var(--mono-main);
    transform: scale(1.3) translateY(-50%) !important;
}
.port.in { left: -6px; transform: translateY(-50%); }
.port.out { right: -6px; top: 50%; transform: translateY(-50%); }
.port.connected { background: var(--mono-dim); }

.port-label {
    position: absolute;
    font-size: 7px;
    color: var(--mono-dim);
    text-transform: uppercase;
    pointer-events: none;
    white-space: nowrap;
}
.port-label.in-label { left: 10px; }
.port-label.out-label { right: 10px; }

/* ---- FORM CONTROLS ---- */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    background: var(--mono-dark);
    height: 2px;
    outline: none;
    cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 8px;
    height: 14px;
    background: var(--mono-main);
    cursor: pointer;
    border-radius: 0;
}
input[type="range"]::-moz-range-thumb {
    width: 8px;
    height: 14px;
    background: var(--mono-main);
    cursor: pointer;
    border: none;
    border-radius: 0;
}

select {
    background: var(--mono-dark);
    color: var(--mono-main);
    border: 1px solid var(--mono-dim);
    font-family: inherit;
    font-size: 9px;
    padding: 3px;
    outline: none;
    cursor: pointer;
    width: 100%;
}

/* ---- PREVIEW ---- */
#preview-container {
    position: fixed;
    right: 15px;
    bottom: 15px;
    border: 1px solid var(--mono-dim);
    background: #000;
    z-index: 200;
    padding: 5px;
    display: flex;
    flex-direction: column;
}
#output-canvas {
    max-width: 350px;
    max-height: 250px;
    display: block;
    background: #111;
    image-rendering: pixelated;
}
.viewport-label {
    font-size: 9px;
    margin-top: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

/* ---- ZOOM INDICATOR ---- */
#zoom-indicator {
    position: fixed;
    bottom: 15px;
    left: 230px;
    font-size: 10px;
    color: var(--mono-dim);
    z-index: 200;
    pointer-events: none;
}

/* ---- HELP OVERLAY ---- */
#help-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}
#help-overlay.hidden { display: none; }
#help-content {
    background: var(--mono-bg);
    border: 1px solid var(--mono-dim);
    padding: 25px 35px;
    max-width: 550px;
    width: 90%;
}
#help-content h2 {
    font-size: 12px;
    margin-bottom: 15px;
    color: var(--mono-main);
    border-bottom: 1px solid var(--mono-dark);
    padding-bottom: 8px;
}
#help-content table { width: 100%; border-collapse: collapse; }
#help-content td {
    font-size: 10px;
    padding: 4px 8px;
    border-bottom: 1px solid #151515;
}
#help-content td:first-child { color: var(--mono-main); white-space: nowrap; }
#help-content td:last-child { color: var(--mono-dim); }
#help-content kbd {
    background: var(--mono-dark);
    border: 1px solid var(--mono-dim);
    padding: 1px 5px;
    font-family: inherit;
    font-size: 9px;
}

/* ---- TOAST ---- */
#toast-container {
    position: fixed;
    top: 40px;
    right: 15px;
    z-index: 10001;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.toast {
    background: var(--mono-bg);
    border: 1px solid var(--mono-dim);
    color: var(--mono-main);
    font-size: 10px;
    padding: 8px 14px;
    animation: toastIn 0.2s ease-out, toastOut 0.3s ease-in 2s forwards;
    pointer-events: none;
}
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; } }

/* ---- CONTEXT MENU ---- */
#context-menu {
    position: fixed;
    background: var(--mono-bg);
    border: 1px solid var(--mono-dim);
    z-index: 10000;
    min-width: 160px;
    display: none;
}
#context-menu button {
    display: block;
    width: 100%;
    background: none;
    border: none;
    border-bottom: 1px solid #151515;
    color: var(--mono-main);
    font-family: inherit;
    font-size: 10px;
    padding: 6px 12px;
    text-align: left;
    cursor: pointer;
}
#context-menu button:hover { background: rgba(255,255,255,0.05); }
#context-menu button:last-child { border-bottom: none; }