/* ============================================================
   CircuitForge Professional - Core Stylesheet
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Exo+2:ital,wght@0,300;0,400;0,600;0,700;0,900;1,400&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg-primary: #0a0e14;
  --bg-canvas: #070a0e;
  --bg-panel: #111820;
  --bg-panel-secondary: #16202c;
  --bg-panel-elevated: #1d2b3a;
  --border-color: #1e3a4a;
  --border-color-light: #2c556b;
  --text-primary: #c8dde8;
  --text-secondary: #7497a8;
  --text-muted: #4a6675;
  --accent-cyan: #00d4ff;
  --accent-green: #00ff88;
  --accent-orange: #ff6b35;
  --accent-yellow: #ffb830;
  --accent-purple: #b478ff;
  --accent-red: #ff3344;
  --accent-blue: #2196f3;

  --wire-default: #00d4ff;
  --wire-powered: #00ff88;
  --wire-ground: #4a6675;
  --wire-clock: #ffb830;
  --wire-glow: 0 0 8px rgba(0, 212, 255, 0.6);

  --grid-color: rgba(0, 212, 255, 0.05);
  --grid-major-color: rgba(0, 212, 255, 0.12);
  --selection-glow: 0 0 12px rgba(0, 212, 255, 0.5);

  --ribbon-bg: #111820;
  --ribbon-tab-active: #16202c;
  --ribbon-border: #1e3a4a;
  --ribbon-btn-hover: rgba(0, 212, 255, 0.12);

  --font-mono: 'JetBrains Mono', 'Share Tech Mono', monospace;
  --font-ui: 'Exo 2', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html, body {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  user-select: none;
  display: flex;
  flex-direction: column;
}

/* ============================================================
   Quick Access Topmost Bar
   ============================================================ */
#quick-access-bar {
  height: 28px;
  background: #090d12;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 12px;
  font-size: 11px;
  color: var(--text-secondary);
  z-index: 1000;
  flex-shrink: 0;
}

.qa-app-title {
  font-family: var(--font-ui);
  font-weight: 800;
  letter-spacing: 1.5px;
  font-size: 12px;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 6px;
}
.qa-app-title span { color: var(--accent-green); }

.qa-icons-group {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-right: 12px;
}

.qa-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 3px 6px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.qa-icon-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.08);
}

.qa-circuit-title {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-ui);
  border-left: 1px solid var(--border-color);
  padding-left: 10px;
}

.qa-status-pill {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
}

.sim-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all 0.3s ease;
}
.sim-indicator.active {
  background: rgba(0, 255, 136, 0.15);
  border-color: var(--accent-green);
  color: var(--accent-green);
  box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
}
.sim-indicator.active .pulse-dot {
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
  animation: pulseSim 1.2s infinite;
}
@keyframes pulseSim {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* ============================================================
   Main Application Layout
   ============================================================ */
#app-body {
  display: flex;
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* Left Sidebar Component Palette */
#sidebar-left {
  width: 220px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 100;
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
#sidebar-left.collapsed {
  width: 0;
  overflow: hidden;
  border-right: none;
}

.sidebar-header {
  padding: 8px 12px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-secondary);
  text-transform: uppercase;
  background: var(--bg-panel-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-search-box {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
}
.sidebar-search-input {
  width: 100%;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 8px;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.15s ease;
}
.sidebar-search-input:focus {
  border-color: var(--accent-cyan);
}

.sidebar-category-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.category-group {
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}
.category-header {
  padding: 6px 10px;
  font-size: 10px;
  font-family: var(--font-ui);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent-cyan);
  background: var(--bg-panel-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.category-header:hover {
  background: rgba(0, 212, 255, 0.08);
}
.category-items-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 6px;
}

.comp-palette-card {
  background: var(--bg-panel-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 6px 4px;
  text-align: center;
  cursor: grab;
  transition: all 0.15s ease;
  color: var(--text-secondary);
  font-size: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  user-select: none;
}
.comp-palette-card:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.09);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}
.comp-palette-card:active {
  cursor: grabbing;
}
.comp-palette-card .card-icon {
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 22px;
}
.comp-palette-card .card-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 85px;
  font-weight: 500;
}

/* Category Specific Border Highlights */
.comp-palette-card.digital { border-color: rgba(0, 255, 136, 0.25); }
.comp-palette-card.digital:hover { border-color: var(--accent-green); color: var(--accent-green); background: rgba(0, 255, 136, 0.1); }
.comp-palette-card.ic { border-color: rgba(255, 184, 48, 0.3); }
.comp-palette-card.ic:hover { border-color: var(--accent-yellow); color: var(--accent-yellow); background: rgba(255, 184, 48, 0.1); }
.comp-palette-card.instrument { border-color: rgba(180, 120, 255, 0.3); }
.comp-palette-card.instrument:hover { border-color: var(--accent-purple); color: var(--accent-purple); background: rgba(180, 120, 255, 0.1); }
.comp-palette-card.micro { border-color: rgba(0, 212, 255, 0.3); }
.comp-palette-card.micro:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); background: rgba(0, 212, 255, 0.1); }

/* ============================================================
   Interactive Schematic Canvas & Viewport
   ============================================================ */
#canvas-viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
  background-color: var(--bg-canvas);
  background-image:
    radial-gradient(circle, var(--grid-color) 1px, transparent 1px),
    radial-gradient(circle, var(--grid-major-color) 1.5px, transparent 1.5px);
  background-size: 20px 20px, 100px 100px;
  background-position: 0 0, 0 0;
  cursor: crosshair;
}
#canvas-viewport.select-mode { cursor: default; }
#canvas-viewport.wire-mode { cursor: crosshair; }
#canvas-viewport.delete-mode { cursor: not-allowed; }
#canvas-viewport.probe-ch1-mode { cursor: pointer; }
#canvas-viewport.probe-ch2-mode { cursor: pointer; }

#canvas-world {
  position: absolute;
  top: 0;
  left: 0;
  width: 5000px;
  height: 5000px;
  transform-origin: 0 0;
}

#wire-svg-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
  z-index: 10;
}

.wire-interactive-group {
  pointer-events: stroke;
  cursor: pointer;
}
.wire-interactive-group:hover .wire-main-stroke {
  stroke-width: 3.5;
  filter: drop-shadow(0 0 6px var(--accent-cyan));
}

.wire-main-stroke {
  fill: none;
  stroke: var(--wire-default);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.2s, stroke-width 0.15s;
}
.wire-main-stroke.powered {
  stroke: var(--wire-powered);
  filter: drop-shadow(0 0 5px rgba(0, 255, 136, 0.7));
}
.wire-main-stroke.ground {
  stroke: #5a7585;
}
.wire-main-stroke.clock {
  stroke: var(--wire-clock);
  stroke-dasharray: 6 3;
}
.wire-main-stroke.probe-ch1 {
  stroke: #ffea00;
  stroke-width: 2.8;
  filter: drop-shadow(0 0 6px rgba(255, 234, 0, 0.8));
}
.wire-main-stroke.probe-ch2 {
  stroke: #00f0ff;
  stroke-width: 2.8;
  filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.8));
}

.wire-temp-drawing {
  fill: none;
  stroke: var(--accent-cyan);
  stroke-width: 2;
  stroke-dasharray: 6 4;
  opacity: 0.8;
}

.wire-node-dot {
  fill: var(--accent-cyan);
  pointer-events: none;
}
.wire-node-dot.powered { fill: var(--accent-green); }

/* ============================================================
   Component Elements On Canvas
   ============================================================ */
.circuit-comp-node {
  position: absolute;
  cursor: move;
  z-index: 20;
  transition: transform 0.1s ease;
}
.circuit-comp-node.selected .comp-outer-box {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  box-shadow: var(--selection-glow);
}

.comp-outer-box {
  background: var(--bg-panel-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.circuit-comp-node:hover .comp-outer-box {
  border-color: var(--accent-cyan);
}

/* Pins */
.comp-pin {
  position: absolute;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg-panel);
  border: 2px solid var(--border-color-light);
  cursor: crosshair;
  z-index: 30;
  transition: all 0.15s ease;
}
.comp-pin:hover, .comp-pin.hovered {
  background: var(--accent-cyan);
  border-color: #ffffff;
  transform: translate(-50%, -50%) scale(1.4);
  box-shadow: 0 0 8px var(--accent-cyan);
}
.comp-pin.pin-vcc { border-color: #ff3344; }
.comp-pin.pin-gnd { border-color: #607d8b; }
.comp-pin.pin-input { border-color: #00d4ff; }
.comp-pin.pin-output { border-color: #00ff88; }
.comp-pin.pin-clock { border-color: #ffb830; }

.comp-pin-label {
  position: absolute;
  font-size: 8px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  pointer-events: none;
  white-space: nowrap;
}

/* 7-Segment Display Component */
.seven-seg-box {
  background: #080b0f;
  border: 2px solid #2a3a4a;
  border-radius: 6px;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.seven-seg-svg {
  filter: drop-shadow(0 0 2px rgba(255, 30, 30, 0.4));
}
.seg-bar {
  fill: #1a0808;
  transition: fill 0.05s ease, filter 0.05s ease;
}
.seg-bar.lit {
  fill: #ff2233;
  filter: drop-shadow(0 0 4px #ff2233);
}

/* ============================================================
   Right Sidebar (Inspector & Properties)
   ============================================================ */
#sidebar-right {
  width: 280px;
  background: var(--bg-panel);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 100;
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
#sidebar-right.collapsed {
  width: 0;
  overflow: hidden;
  border-left: none;
}

.prop-section {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
}
.prop-title {
  font-size: 10px;
  font-family: var(--font-ui);
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.prop-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.prop-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.prop-name {
  font-size: 11px;
  color: var(--text-secondary);
  width: 80px;
  flex-shrink: 0;
}
.prop-val-input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.15s;
}
.prop-val-input:focus {
  border-color: var(--accent-cyan);
}

/* ============================================================
   Bottom Status & Suggestion Bar
   ============================================================ */
#bottom-status-bar {
  height: 26px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 16px;
  font-size: 11px;
  color: var(--text-secondary);
  z-index: 200;
  flex-shrink: 0;
}

.status-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.status-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

.zoom-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}
.zoom-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 12px;
}
.zoom-btn:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

/* Toast Notifications */
#toast-notification {
  position: fixed;
  bottom: 40px;
  right: 24px;
  background: var(--bg-panel-elevated);
  border: 1px solid var(--accent-cyan);
  color: var(--text-primary);
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 12px;
  font-family: var(--font-ui);
  z-index: 99999;
  opacity: 0;
  transform: translateY(14px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  box-shadow: 0 8px 24px rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  gap: 10px;
}
#toast-notification.show {
  opacity: 1;
  transform: translateY(0);
}
#toast-notification.success {
  border-color: var(--accent-green);
  color: #c9ffea;
}
#toast-notification.error {
  border-color: var(--accent-red);
  color: #ffd2d5;
}
#toast-notification.warn {
  border-color: var(--accent-yellow);
  color: #fff1d4;
}

/* Context Menu */
#app-context-menu {
  position: fixed;
  background: var(--bg-panel-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 5px;
  z-index: 10000;
  display: none;
  min-width: 170px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.7);
}
.ctx-menu-item {
  padding: 6px 12px;
  font-size: 11px;
  font-family: var(--font-ui);
  cursor: pointer;
  border-radius: 4px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.1s;
}
.ctx-menu-item:hover {
  background: rgba(0, 212, 255, 0.15);
  color: var(--accent-cyan);
}
.ctx-menu-item.danger:hover {
  background: rgba(255, 51, 68, 0.18);
  color: var(--accent-red);
}
.ctx-menu-divider {
  border-top: 1px solid var(--border-color);
  margin: 4px 0;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-color-light);
}

/* Embedded IDE Drawer Modal */
.ide-drawer-modal {
  position: fixed;
  bottom: 26px;
  right: 0;
  width: 520px;
  height: 480px;
  background: #0b1118;
  border-top: 2px solid var(--accent-cyan);
  border-left: 2px solid var(--border-color);
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.7);
  z-index: 4000;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.ide-drawer-modal.open {
  transform: translateX(0);
}
.ide-drawer-header {
  height: 38px;
  background: #111a24;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 12px;
}
.ide-drawer-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#ide-code-textarea {
  flex: 1;
  background: #070b10;
  color: #c8dde8;
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 12px;
  border: none;
  outline: none;
  resize: none;
  line-height: 1.5;
}
.ide-serial-panel {
  height: 140px;
  background: #040608;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}
.ide-serial-header {
  height: 26px;
  background: #0d141c;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-size: 10px;
  color: var(--text-secondary);
}
#ide-serial-console {
  flex: 1;
  overflow-y: auto;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-green);
}
.serial-line {
  margin-bottom: 2px;
  line-height: 1.4;
}