/* ELECPLAN - Diseño de Planos Eléctricos */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  --bg-primary: #0d0f14;
  --bg-secondary: #13161e;
  --bg-panel: #181c26;
  --bg-panel-light: #1e2333;
  --bg-hover: #252a3a;
  --border: #2a3048;
  --border-light: #363f5a;
  --accent: #00d4ff;
  --accent-dim: rgba(0,212,255,0.15);
  --accent2: #ffd600;
  --accent3: #00ff9d;
  --text-primary: #e8eaf2;
  --text-secondary: #8892aa;
  --text-dim: #4a5270;
  --red: #ff4455;
  --orange: #ff8c00;
  --green: #00cc66;
  --yellow: #ffd600;
  --blue: #4488ff;
  --canvas-bg: #f5f5f0;
  --grid-color: #dde0e8;
  --grid-major: #c8cdd8;
  --shadow: 0 4px 24px rgba(0,0,0,0.5);
  --radius: 6px;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-sans: 'IBM Plex Sans', sans-serif;
}

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

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

/* ─── HEADER ─────────────────────────────────────────────── */
#header {
  height: 48px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  flex-shrink: 0;
  z-index: 100;
}

#logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-right: 8px;
  white-space: nowrap;
}

#logo svg { flex-shrink: 0; }

.header-sep {
  width: 1px;
  height: 28px;
  background: var(--border);
  margin: 0 4px;
}

.menu-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.menu-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  position: relative;
}

.menu-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
  color: var(--text-primary);
}

.menu-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.menu-btn.danger:hover { color: var(--red); border-color: var(--red); }
.menu-btn.success:hover { color: var(--accent3); border-color: var(--accent3); }

.spacer { flex: 1; }

#project-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  padding: 4px 10px;
}

#project-name span { color: var(--text-secondary); }

/* ─── MAIN LAYOUT ────────────────────────────────────────── */
#workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ─── LEFT PANEL ─────────────────────────────────────────── */
#panel-left {
  width: 140px;
  min-width: 0;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
  transition: width 0.2s ease;
  position: relative;
}

#panel-left.collapsed {
  width: 0;
  border-right: none;
}

#panel-toggle {
  position: absolute;
  right: -22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 22px;
  height: 44px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: 0 6px 6px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 10px;
  transition: color 0.15s, background 0.15s;
}

#panel-toggle:hover {
  color: var(--accent);
  background: var(--bg-hover);
}

.panel-header {
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-search {
  padding: 8px;
  border-bottom: 1px solid var(--border);
}

.panel-search input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px 8px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  outline: none;
}

.panel-search input:focus { border-color: var(--accent); }
.panel-search input::placeholder { color: var(--text-dim); }

#symbol-library {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

#symbol-library::-webkit-scrollbar { width: 4px; }
#symbol-library::-webkit-scrollbar-track { background: transparent; }
#symbol-library::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 2px; }

.lib-category {
  border-bottom: 1px solid var(--border);
}

.lib-cat-header {
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color 0.15s;
}

.lib-cat-header:hover { color: var(--text-secondary); }

.lib-cat-header .arrow {
  font-size: 8px;
  transition: transform 0.2s;
}

.lib-cat-header.collapsed .arrow { transform: rotate(-90deg); }

.lib-items {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 2px 6px 6px;
}

.lib-item {
  background: var(--bg-panel-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px 6px;
  cursor: grab;
  text-align: left;
  transition: all 0.15s;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
}

.lib-item:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.lib-item:active { cursor: grabbing; transform: translateY(0); }

.lib-item.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.lib-item svg { pointer-events: none; }

.lib-item span {
  font-size: 9px;
  color: var(--text-secondary);
  line-height: 1.2;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─── TOOLS PANEL ────────────────────────────────────────── */
#panel-tools {
  width: 48px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  gap: 4px;
  flex-shrink: 0;
}

.tool-btn {
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.15s;
  position: relative;
}

.tool-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
  color: var(--text-primary);
}

.tool-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.tool-btn .tooltip {
  position: absolute;
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-primary);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 200;
}

.tool-btn:hover .tooltip { opacity: 1; }

.tool-sep {
  width: 28px;
  height: 1px;
  background: var(--border);
  margin: 2px 0;
}

/* ─── CANVAS AREA ────────────────────────────────────────── */
#canvas-container {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--canvas-bg);
}

#main-canvas {
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
}

#canvas-container.cursor-select #main-canvas { cursor: default; }
#canvas-container.cursor-grab #main-canvas { cursor: grab; }
#canvas-container.cursor-grabbing #main-canvas { cursor: grabbing; }
#canvas-container.cursor-text #main-canvas { cursor: text; }

/* ─── RIGHT PANEL ────────────────────────────────────────── */
#panel-right {
  width: 240px;
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.right-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.right-tab {
  flex: 1;
  padding: 9px 4px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.15s;
  border-bottom: 2px solid transparent;
}

.right-tab:hover { color: var(--text-secondary); }

.right-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.right-panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 0;
}

.right-panel-content::-webkit-scrollbar { width: 4px; }
.right-panel-content::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 2px; }

/* Properties Panel */
.prop-section {
  border-bottom: 1px solid var(--border);
  padding: 10px 12px;
}

.prop-section-title {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.prop-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.prop-label {
  font-size: 11px;
  color: var(--text-secondary);
  width: 80px;
  flex-shrink: 0;
}

.prop-input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 7px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  outline: none;
  min-width: 0;
}

.prop-input:focus { border-color: var(--accent); }

.prop-select {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 7px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  outline: none;
  cursor: pointer;
}

.prop-select:focus { border-color: var(--accent); }

.prop-color {
  width: 28px;
  height: 22px;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  padding: 2px;
  background: var(--bg-primary);
}

/* Circuit List */
.circuit-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
}

.circuit-item:hover { background: var(--bg-hover); }
.circuit-item.active { background: var(--accent-dim); }

.circuit-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  width: 28px;
  flex-shrink: 0;
}

.circuit-info { flex: 1; min-width: 0; }

.circuit-name {
  font-size: 11px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.circuit-detail {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}

.circuit-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Layer Panel */
.layer-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
}

.layer-item:hover { background: var(--bg-hover); }
.layer-item.active { background: var(--accent-dim); }

.layer-vis {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 3px;
}

.layer-vis:hover { background: var(--bg-hover); }
.layer-vis.hidden { color: var(--text-dim); }

.layer-name {
  flex: 1;
  font-size: 11px;
  color: var(--text-primary);
}

.layer-color {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

/* ─── STATUSBAR ──────────────────────────────────────────── */
#statusbar {
  height: 26px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  flex-shrink: 0;
}

.status-item { display: flex; align-items: center; gap: 4px; }
.status-val { color: var(--text-secondary); }
.status-sep { width: 1px; height: 14px; background: var(--border); }

/* ─── MODALS ─────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.modal-overlay.hidden { display: none; }

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  box-shadow: var(--shadow);
  min-width: 400px;
  max-width: 700px;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.06em;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 4px;
}

.modal-close:hover { color: var(--text-primary); background: var(--bg-hover); }

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.modal-body::-webkit-scrollbar { width: 6px; }
.modal-body::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

/* Buttons */
.btn {
  padding: 7px 16px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
}

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

.btn-primary:hover { filter: brightness(1.1); }

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-light);
}

.btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-danger {
  background: transparent;
  color: var(--red);
  border-color: var(--red);
}

.btn-danger:hover { background: rgba(255,68,85,0.1); }

/* Forms */
.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 5px;
  font-family: var(--font-mono);
}

.form-input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 7px 10px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  outline: none;
}

.form-input:focus { border-color: var(--accent); }

.form-select {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 7px 10px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  outline: none;
  cursor: pointer;
}

.form-select:focus { border-color: var(--accent); }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ─── CONDUCTOR COLORS ───────────────────────────────────── */
.wire-color-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-top: 4px;
}

.wire-color-opt {
  padding: 5px;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  font-size: 9px;
  transition: all 0.15s;
}

.wire-color-opt:hover { border-color: var(--border-light); }
.wire-color-opt.selected { border-color: var(--accent); }

/* ─── LEGEND PANEL ───────────────────────────────────────── */
.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
}

.legend-sym {
  width: 36px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.legend-desc {
  flex: 1;
  font-size: 11px;
  color: var(--text-primary);
}

.legend-count {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 2px 6px;
  border-radius: 10px;
}

/* ─── LOAD CALC ──────────────────────────────────────────── */
.calc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.calc-table th {
  text-align: left;
  padding: 6px 8px;
  background: var(--bg-primary);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

.calc-table td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.calc-table td:first-child { color: var(--text-primary); }
.calc-table tr:hover td { background: var(--bg-hover); }

.calc-total {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.calc-total-item { text-align: center; }

.calc-total-label {
  font-size: 9px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.calc-total-val {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
}

.calc-total-unit {
  font-size: 10px;
  color: var(--text-secondary);
}

/* ─── AEA REFERENCE ──────────────────────────────────────── */
.aea-section { margin-bottom: 14px; }

.aea-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 6px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.aea-text {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.aea-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10px;
  margin-top: 6px;
}

.aea-table th {
  background: var(--bg-primary);
  color: var(--text-dim);
  font-family: var(--font-mono);
  padding: 4px 8px;
  text-align: left;
  border: 1px solid var(--border);
  font-size: 9px;
}

.aea-table td {
  padding: 4px 8px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* ─── CONTEXT MENU ───────────────────────────────────────── */
.context-menu {
  position: fixed;
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 500;
  min-width: 160px;
  padding: 4px 0;
  font-size: 12px;
}

.context-menu.hidden { display: none; }

.ctx-item {
  padding: 6px 14px;
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.1s;
}

.ctx-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.ctx-item.danger:hover { color: var(--red); }
.ctx-sep { height: 1px; background: var(--border); margin: 3px 0; }

/* ─── SNAPPING INDICATOR ─────────────────────────────────── */
#snap-indicator {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  display: none;
}

/* ─── RULER ──────────────────────────────────────────────── */
#ruler-h {
  position: absolute;
  top: 0;
  left: 20px;
  right: 0;
  height: 20px;
  background: rgba(13,15,20,0.85);
  border-bottom: 1px solid var(--border);
  pointer-events: none;
  overflow: hidden;
}

#ruler-v {
  position: absolute;
  top: 20px;
  left: 0;
  width: 20px;
  bottom: 0;
  background: rgba(13,15,20,0.85);
  border-right: 1px solid var(--border);
  pointer-events: none;
  overflow: hidden;
}

#ruler-corner {
  position: absolute;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  background: rgba(13,15,20,0.9);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  pointer-events: none;
}

#ruler-h canvas, #ruler-v canvas { display: block; }

/* ─── MINI MAP ───────────────────────────────────────────── */
#minimap {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 160px;
  height: 100px;
  background: rgba(13,15,20,0.9);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

#minimap canvas { display: block; }

/* ─── ZOOM CONTROLS ──────────────────────────────────────── */
#zoom-controls {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(13,15,20,0.9);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 4px 10px;
}

.zoom-btn {
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.15s;
}

.zoom-btn:hover { background: var(--bg-hover); color: var(--text-primary); }

#zoom-level {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  min-width: 48px;
  text-align: center;
  cursor: pointer;
}

#zoom-level:hover { color: var(--accent); }

/* ─── SELECTION BOX ──────────────────────────────────────── */
#selection-box {
  position: absolute;
  border: 1px solid var(--accent);
  background: rgba(0,212,255,0.08);
  pointer-events: none;
  display: none;
}

/* ─── NOTIFICATION ───────────────────────────────────────── */
#notification {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  box-shadow: var(--shadow);
  z-index: 2000;
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
}

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

#notification.success { border-color: var(--accent3); color: var(--accent3); }
#notification.error { border-color: var(--red); color: var(--red); }
#notification.info { border-color: var(--accent); color: var(--accent); }

/* ─── PDF EXPORT PREVIEW ─────────────────────────────────── */
.pdf-preview {
  background: white;
  color: #000;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 16px;
  margin-bottom: 12px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
}

.pdf-opts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ─── KEYBOARD SHORTCUTS ─────────────────────────────────── */
.shortcut-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 16px;
}

.shortcut-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
}

.shortcut-key {
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 3px;
  padding: 2px 6px;
  color: var(--accent);
  white-space: nowrap;
}

.shortcut-desc {
  font-size: 11px;
  color: var(--text-secondary);
}

/* ─── PRINT STYLES ───────────────────────────────────────── */
@media print {
  body { background: white; }
  #header, #panel-left, #panel-right, #panel-tools, #statusbar { display: none !important; }
  #canvas-container { width: 100vw; height: 100vh; }
}

/* ─── ANIMATIONS ─────────────────────────────────────────── */
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.modal { animation: fadeIn 0.2s ease; }