/* ═══════════════════════════════════════════════════════════════════
   CIRCUITLAB PRO — Complete Design System & All Panel Styles
   Dark electronics theme · Cyan/Purple accent · Monospace type
═══════════════════════════════════════════════════════════════════ */

/* ── Google Fonts ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ── CSS Variables ────────────────────────────────────────────── */
:root {
  /* Colors */
  --bg-base:       #05050a;
  --bg-surface:    #0a0a14;
  --bg-elevated:   #0f0f1e;
  --bg-card:       #111128;
  --bg-hover:      #161630;
  --bg-active:     #1a1a38;

  --border:        rgba(0,212,255,0.08);
  --border-hover:  rgba(0,212,255,0.2);
  --border-active: rgba(0,212,255,0.4);

  --cyan:          #00d4ff;
  --cyan-dim:      rgba(0,212,255,0.15);
  --cyan-glow:     rgba(0,212,255,0.3);
  --purple:        #7b2fff;
  --purple-dim:    rgba(123,47,255,0.15);
  --green:         #00ff88;
  --green-dim:     rgba(0,255,136,0.15);
  --orange:        #ff9500;
  --red:           #ff4444;
  --gold:          #ffd700;

  --text-primary:  #e8e8f0;
  --text-secondary:#8888aa;
  --text-muted:    #444466;
  --text-accent:   #00d4ff;

  /* Typography */
  --font-mono:     'JetBrains Mono', 'Fira Code', monospace;
  --font-sans:     'Inter', system-ui, sans-serif;

  /* Spacing */
  --sidebar-w:     64px;
  --header-h:      52px;
  --radius-sm:     4px;
  --radius:        8px;
  --radius-lg:     12px;
  --radius-xl:     16px;

  /* Shadows */
  --shadow-sm:     0 2px 8px rgba(0,0,0,0.4);
  --shadow:        0 4px 20px rgba(0,0,0,0.6);
  --shadow-glow:   0 0 20px rgba(0,212,255,0.15);
  --shadow-purple: 0 0 20px rgba(123,47,255,0.2);

  /* Transitions */
  --t-fast:        0.12s ease;
  --t-base:        0.2s ease;
  --t-slow:        0.35s cubic-bezier(0.4,0,0.2,1);
}

/* ── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 14px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,212,255,0.2); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,212,255,0.4); }

/* ── Background Canvas ────────────────────────────────────────── */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.6;
}

/* ── App Shell ────────────────────────────────────────────────── */
#app {
  position: relative;
  z-index: 1;
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* ── Sidebar ──────────────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w);
  height: 100vh;
  background: rgba(10,10,20,0.95);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 4px;
  flex-shrink: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  transition: width var(--t-slow);
}

#sidebar.collapsed { width: 0; overflow: hidden; }

.sidebar-logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 8px;
  box-shadow: var(--shadow-glow);
  flex-shrink: 0;
}

.nav-item {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: all var(--t-base);
  color: var(--text-muted);
  font-size: 18px;
  border: 1px solid transparent;
  flex-shrink: 0;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--cyan);
  border-color: var(--border-hover);
}

.nav-item.active {
  background: var(--cyan-dim);
  color: var(--cyan);
  border-color: var(--border-active);
  box-shadow: var(--shadow-glow);
}

.nav-item::after {
  content: attr(data-label);
  position: absolute;
  left: calc(100% + 8px);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-fast);
  z-index: 200;
}

.nav-item:hover::after { opacity: 1; }

.nav-spacer { flex: 1; }

.nav-divider {
  width: 32px;
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

/* ── Main Content ─────────────────────────────────────────────── */
#main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: margin-left var(--t-slow);
}

/* ── Header ───────────────────────────────────────────────────── */
#header {
  height: var(--header-h);
  background: rgba(10,10,20,0.9);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  flex-shrink: 0;
  backdrop-filter: blur(20px);
  z-index: 50;
}

#sidebar-toggle {
  width: 32px;
  height: 32px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all var(--t-base);
}
#sidebar-toggle:hover { border-color: var(--border-hover); color: var(--cyan); }

.header-breadcrumb {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.header-breadcrumb::before { content: '~/'; color: var(--cyan); }
#breadcrumb { color: var(--text-secondary); }

.header-spacer { flex: 1; }

/* Search */
.search-wrapper {
  position: relative;
  width: 280px;
}

#global-search {
  width: 100%;
  height: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 0 32px 0 12px;
  outline: none;
  transition: all var(--t-base);
}
#global-search:focus {
  border-color: var(--border-active);
  box-shadow: 0 0 0 2px var(--cyan-dim);
}
#global-search::placeholder { color: var(--text-muted); }

.search-icon {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 12px;
  pointer-events: none;
}

.search-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 300;
  overflow: hidden;
  display: none;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background var(--t-fast);
}
.search-result-item:hover { background: var(--bg-hover); }

.search-result-icon { font-size: 16px; flex-shrink: 0; }
.search-result-info { flex: 1; min-width: 0; }
.search-result-name { font-size: 12px; font-weight: 500; }
.search-result-meta { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }
.search-result-type {
  font-size: 9px;
  font-family: var(--font-mono);
  padding: 2px 6px;
  border-radius: 3px;
  text-transform: uppercase;
}
.search-no-results { padding: 12px; text-align: center; color: var(--text-muted); font-size: 12px; }

/* Header buttons */
.header-btn {
  width: 32px;
  height: 32px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all var(--t-base);
  position: relative;
}
.header-btn:hover { border-color: var(--border-hover); color: var(--cyan); }

.notif-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 6px;
  height: 6px;
  background: var(--red);
  border-radius: 50%;
}

.header-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--t-base);
}
.header-user:hover { background: var(--bg-hover); }

.user-avatar {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

.user-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ── View Panels ──────────────────────────────────────────────── */
#content-area {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.view-panel {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 20px;
  display: none;
  flex-direction: column;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

.view-panel.active {
  opacity: 1;
  transform: translateY(0);
}

/* Simulator and viewer panels need no padding */
#view-simulator,
#view-viewer,
#view-boards {
  padding: 0;
}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), #0099bb);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--t-base);
  white-space: nowrap;
}
.btn-primary:hover { filter: brightness(1.15); box-shadow: 0 0 12px var(--cyan-glow); }

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: all var(--t-base);
}
.btn-secondary:hover { border-color: var(--border-hover); color: var(--text-primary); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: none;
  padding: 4px 8px;
  font-size: 11px;
  cursor: pointer;
  transition: color var(--t-fast);
}
.btn-ghost:hover { color: var(--text-primary); }

.btn-danger {
  background: rgba(255,68,68,0.15);
  color: var(--red);
  border: 1px solid rgba(255,68,68,0.3);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  transition: all var(--t-base);
}
.btn-danger:hover { background: rgba(255,68,68,0.25); }

.btn-sm { padding: 4px 10px; font-size: 10px; }
.btn-xs { padding: 2px 8px; font-size: 10px; }

.btn-group {
  display: flex;
  gap: 2px;
}

.btn-ctrl {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  cursor: pointer;
  transition: all var(--t-base);
}
.btn-ctrl:hover { border-color: var(--border-hover); color: var(--text-primary); }
.btn-ctrl.active {
  background: var(--cyan-dim);
  color: var(--cyan);
  border-color: var(--border-active);
}

/* ── Tags & Badges ────────────────────────────────────────────── */
.tag {
  display: inline-block;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 10px;
  font-family: var(--font-mono);
}

.proto-tag {
  display: inline-block;
  background: var(--cyan-dim);
  color: var(--cyan);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 10px;
  font-family: var(--font-mono);
}

.comp-type-badge {
  display: inline-block;
  border-radius: 3px;
  padding: 2px 7px;
  font-size: 9px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-weight: 600;
}

.type-mcu     { background: rgba(0,212,255,0.15); color: var(--cyan); }
.type-sensor  { background: rgba(0,255,136,0.15); color: var(--green); }
.type-power   { background: rgba(255,149,0,0.15); color: var(--orange); }
.type-passive { background: rgba(136,136,136,0.15); color: #888; }
.type-wireless{ background: rgba(123,47,255,0.15); color: var(--purple); }
.type-display { background: rgba(255,45,120,0.15); color: #ff2d78; }

/* ── Toggle Switch ────────────────────────────────────────────── */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
  cursor: pointer;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all var(--t-base);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  left: 2px;
  top: 2px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: all var(--t-base);
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--cyan-dim);
  border-color: var(--border-active);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(16px);
  background: var(--cyan);
}

/* ── Toast ────────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  font-family: var(--font-mono);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateX(20px);
  transition: all var(--t-base);
  pointer-events: auto;
}
.toast.show { opacity: 1; transform: translateX(0); }
.toast-info    { border-color: rgba(0,212,255,0.3); }
.toast-success { border-color: rgba(0,255,136,0.3); }
.toast-warning { border-color: rgba(255,149,0,0.3); }
.toast-error   { border-color: rgba(255,68,68,0.3); }
.toast-info    .toast-icon { color: var(--cyan); }
.toast-success .toast-icon { color: var(--green); }
.toast-warning .toast-icon { color: var(--orange); }
.toast-error   .toast-icon { color: var(--red); }

/* ── Pin Tooltip ──────────────────────────────────────────────── */
#pin-tooltip {
  position: fixed;
  z-index: 500;
  background: var(--bg-elevated);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  pointer-events: none;
  box-shadow: var(--shadow);
  display: none;
  min-width: 120px;
}
.tooltip-pin-num { font-size: 10px; font-weight: 600; margin-bottom: 2px; }
.tooltip-pin-name { font-size: 12px; font-weight: 600; color: var(--text-primary); }
.tooltip-pin-type { font-size: 10px; margin-top: 2px; }
.tooltip-pin-voltage { font-size: 10px; color: var(--text-muted); margin-top: 2px; }

/* ═══════════════════════════════════════════════════════════════
   DASHBOARD
═══════════════════════════════════════════════════════════════ */
.dashboard-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 1400px;
}

/* Stats Row */
.dash-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  position: relative;
  overflow: hidden;
  transition: all var(--t-base);
}
.stat-card:hover {
  border-color: var(--accent, var(--border-hover));
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent, var(--cyan));
}

.stat-icon { font-size: 20px; margin-bottom: 8px; }
.stat-value {
  font-size: 28px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent, var(--cyan));
  line-height: 1;
}
.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-bar {
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  margin-top: 12px;
  overflow: hidden;
}
.stat-bar-fill {
  height: 100%;
  border-radius: 1px;
  transition: width 1s ease;
}

/* Dashboard Sections */
.dash-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.dash-section-title {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.dash-section-title::before {
  content: '';
  width: 3px;
  height: 12px;
  background: var(--cyan);
  border-radius: 2px;
}

/* Quick Access */
.quick-access-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.quick-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 10px;
  cursor: pointer;
  transition: all var(--t-base);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.quick-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.quick-card-icon { font-size: 22px; margin-bottom: 6px; }
.quick-card-label { font-size: 11px; font-weight: 600; color: var(--text-primary); }
.quick-card-desc { font-size: 9px; color: var(--text-muted); margin-top: 3px; line-height: 1.3; }
.quick-card-arrow {
  position: absolute;
  bottom: 8px;
  right: 10px;
  font-size: 10px;
  color: var(--cyan);
  opacity: 0;
  transition: opacity var(--t-fast);
}
.quick-card:hover .quick-card-arrow { opacity: 1; }

/* Recent Components */
.recent-comps-list { display: flex; flex-direction: column; gap: 8px; }

.recent-comp-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--t-base);
}
.recent-comp-item:hover { border-color: var(--border-hover); background: var(--bg-hover); }
.recent-comp-icon { font-size: 20px; flex-shrink: 0; }
.recent-comp-info { flex: 1; min-width: 0; }
.recent-comp-name { font-size: 13px; font-weight: 500; }
.recent-comp-meta { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); margin-top: 2px; }
.recent-comp-tags { display: flex; gap: 4px; flex-wrap: wrap; }

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.project-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent, var(--cyan));
  border-radius: var(--radius);
  padding: 12px;
  cursor: pointer;
  transition: all var(--t-base);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.project-card:hover { border-color: var(--accent, var(--border-hover)); background: var(--bg-hover); }
.project-card-icon { font-size: 20px; flex-shrink: 0; }
.project-card-body { flex: 1; min-width: 0; }
.project-card-name { font-size: 12px; font-weight: 600; }
.project-card-desc { font-size: 10px; color: var(--text-muted); margin-top: 3px; }
.project-card-tags { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 6px; }
.project-card-meta { font-size: 9px; color: var(--text-muted); font-family: var(--font-mono); flex-shrink: 0; }

/* Protocol Grid */
.protocol-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.protocol-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: 2px solid var(--pc, var(--cyan));
  border-radius: var(--radius);
  padding: 10px;
}
.protocol-name { font-size: 14px; font-weight: 700; font-family: var(--font-mono); margin-bottom: 6px; }
.protocol-detail { font-size: 9px; color: var(--text-muted); margin-top: 3px; }
.protocol-detail span { color: var(--text-secondary); }

/* ═══════════════════════════════════════════════════════════════
   COMPONENT LIBRARY
═══════════════════════════════════════════════════════════════ */
.library-layout {
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
}

.library-filters {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  flex-shrink: 0;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-label {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  white-space: nowrap;
}

.filter-chips { display: flex; gap: 4px; }

.filter-chip {
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  cursor: pointer;
  transition: all var(--t-fast);
}
.filter-chip:hover { border-color: var(--border-hover); color: var(--text-primary); }
.filter-chip.active {
  background: var(--cyan-dim);
  color: var(--cyan);
  border-color: var(--border-active);
}

.filter-select {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  outline: none;
  cursor: pointer;
}

.components-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  overflow-y: auto;
  padding-bottom: 20px;
}

.no-results {
  grid-column: 1/-1;
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Component Card */
.comp-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px;
  cursor: pointer;
  transition: all var(--t-base);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.comp-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.comp-card.in-compare {
  border-color: var(--purple);
  box-shadow: 0 0 12px var(--purple-dim);
}

.comp-card-header {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.comp-card-icon { font-size: 22px; flex-shrink: 0; }
.comp-card-title { flex: 1; min-width: 0; }
.comp-card-name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.comp-card-mfr { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }

.comp-compare-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-muted);
  width: 20px;
  height: 20px;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--t-fast);
  flex-shrink: 0;
}
.comp-compare-btn:hover { border-color: var(--purple); color: var(--purple); }
.comp-compare-btn.active { background: var(--purple-dim); border-color: var(--purple); color: var(--purple); }

.comp-card-specs { display: flex; flex-direction: column; gap: 3px; }
.spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  font-family: var(--font-mono);
}
.spec-row span:first-child { color: var(--text-muted); }
.spec-row span:last-child { color: var(--text-secondary); }

.comp-card-protocols { display: flex; flex-wrap: wrap; gap: 3px; }

.comp-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

/* Compare Panel */
.compare-panel {
  background: var(--bg-card);
  border: 1px solid var(--purple);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-top: 8px;
}
.compare-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.compare-header h3 { font-size: 13px; color: var(--purple); font-family: var(--font-mono); }
.compare-table-wrapper { overflow-x: auto; }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  font-family: var(--font-mono);
}
.compare-table th {
  padding: 8px 12px;
  text-align: left;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}
.compare-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.compare-field { color: var(--text-muted); }
.compare-table tr:hover td { background: var(--bg-hover); }

/* ═══════════════════════════════════════════════════════════════
   3D VIEWER
═══════════════════════════════════════════════════════════════ */
#view-viewer {
  display: grid !important;
  grid-template-columns: 220px 1fr 280px;
  grid-template-rows: 1fr 200px;
  gap: 0;
}

#viewer-sidebar {
  grid-row: 1 / 3;
  background: rgba(10,10,20,0.95);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.viewer-comp-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.viewer-comp-icon { font-size: 24px; }
.viewer-comp-name { font-size: 14px; font-weight: 600; }
.viewer-comp-mfr { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }

.viewer-specs { display: flex; flex-direction: column; gap: 4px; }
.viewer-spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 3px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.viewer-spec-key { color: var(--text-muted); }
.viewer-spec-val { color: var(--text-secondary); }

.viewer-protocols { display: flex; flex-wrap: wrap; gap: 4px; }

.viewer-controls { display: flex; flex-direction: column; gap: 10px; }
.viewer-ctrl-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.viewer-ctrl-group label {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.viewer-comp-select { display: flex; flex-direction: column; gap: 6px; }
.viewer-comp-select label { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); text-transform: uppercase; }

/* 3D Canvas Area */
#viewer-canvas-area {
  grid-column: 2;
  grid-row: 1;
  position: relative;
  background: radial-gradient(ellipse at center, #0a0a1e 0%, #05050a 100%);
  overflow: hidden;
}

#viewer-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.viewer-canvas-overlay {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  pointer-events: none;
}

.viewer-hint {
  background: rgba(0,0,0,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

/* Pin Table */
#viewer-pin-panel {
  grid-column: 3;
  grid-row: 1 / 3;
  background: rgba(10,10,20,0.95);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pin-panel-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.pin-table-wrapper {
  flex: 1;
  overflow-y: auto;
}

.pin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10px;
  font-family: var(--font-mono);
}
.pin-table th {
  padding: 6px 8px;
  text-align: left;
  background: var(--bg-elevated);
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  font-size: 9px;
  text-transform: uppercase;
}
.pin-table td { padding: 5px 8px; border-bottom: 1px solid rgba(255,255,255,0.03); }
.pin-row { cursor: pointer; transition: background var(--t-fast); }
.pin-row:hover { background: var(--bg-hover); }
.pin-row.selected { background: var(--cyan-dim); }
.pin-num { color: var(--text-muted); font-weight: 600; }
.pin-name { color: var(--text-primary); font-weight: 500; }
.pin-alt { color: var(--text-muted); }
.pin-voltage { color: var(--orange); }
.pin-protocol { }
.pin-warning { color: var(--orange); cursor: help; }
.pin-type-badge {
  display: inline-block;
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 9px;
  white-space: nowrap;
}
.no-pinout { text-align: center; padding: 20px; color: var(--text-muted); }

/* Pin Detail Panel */
#pin-detail-panel {
  grid-column: 2;
  grid-row: 2;
  background: rgba(8,8,18,0.95);
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  overflow-y: auto;
}

.pin-detail-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 10px;
  border-left: 3px solid;
  padding-left: 10px;
}
.pin-detail-num {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
}
.pin-detail-name { font-size: 14px; font-weight: 600; }
.pin-detail-alt { font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); }

.pin-detail-body { display: flex; flex-direction: column; gap: 6px; }
.pin-detail-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  font-family: var(--font-mono);
}
.pin-detail-row span:first-child { color: var(--text-muted); }

.pin-warning-box {
  background: rgba(255,149,0,0.1);
  border: 1px solid rgba(255,149,0,0.3);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 10px;
  color: var(--orange);
  margin-top: 6px;
}

.pin-signal-viz {
  margin-top: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px;
}
#signal-canvas { display: block; }

/* ═══════════════════════════════════════════════════════════════
   CIRCUIT SIMULATOR
═══════════════════════════════════════════════════════════════ */
#view-simulator {
  display: grid !important;
  grid-template-columns: 160px 1fr 220px;
  grid-template-rows: 48px 1fr 180px;
}

/* Sim Toolbar */
#sim-toolbar {
  grid-column: 1 / 4;
  background: rgba(10,10,20,0.95);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
}

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

.sim-toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 4px;
}

.sim-speed-label {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

#sim-speed {
  width: 80px;
  accent-color: var(--cyan);
}

.sim-status {
  margin-left: auto;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.sim-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
}
.sim-status-dot.running {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Component Palette */
#sim-palette {
  grid-row: 2 / 4;
  background: rgba(10,10,20,0.95);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 10px 8px;
}

.palette-section-title {
  font-size: 9px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 4px 4px;
}

.palette-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: var(--radius-sm);
  cursor: grab;
  transition: all var(--t-fast);
  border: 1px solid transparent;
  font-size: 11px;
  color: var(--text-secondary);
}
.palette-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-hover);
  color: var(--text-primary);
}
.palette-item:active { cursor: grabbing; }
.palette-item-icon { font-size: 14px; flex-shrink: 0; }
.palette-item-name { font-size: 10px; font-family: var(--font-mono); }

/* Sim Canvas */
#sim-canvas-area {
  grid-column: 2;
  grid-row: 2;
  position: relative;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 19px,
    rgba(0,212,255,0.03) 19px,
    rgba(0,212,255,0.03) 20px
  ),
  repeating-linear-gradient(
    90deg,
    transparent,
    transparent 19px,
    rgba(0,212,255,0.03) 19px,
    rgba(0,212,255,0.03) 20px
  );
  overflow: hidden;
}

#sim-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.sim-canvas-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  pointer-events: none;
  opacity: 0.5;
}
.sim-canvas-hint-icon { font-size: 32px; margin-bottom: 8px; }

/* Instruments Panel */
#sim-instruments {
  grid-column: 3;
  grid-row: 2 / 4;
  background: rgba(10,10,20,0.95);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.instrument-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.instrument-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
}

.instrument-led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 4px var(--green);
}

/* Oscilloscope */
#osc-canvas {
  display: block;
  width: 100%;
  height: 80px;
  background: #000;
}

/* Multimeter */
.mm-display {
  padding: 10px;
  text-align: center;
}
.mm-value {
  font-size: 28px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--green);
  text-shadow: 0 0 10px var(--green);
  line-height: 1;
}
.mm-unit {
  font-size: 14px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-left: 4px;
}
.mm-mode {
  margin-top: 8px;
  display: flex;
  gap: 4px;
  justify-content: center;
}

/* Signal Generator */
.sig-gen-controls {
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sig-gen-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  font-family: var(--font-mono);
}
.sig-gen-row label { color: var(--text-muted); }
.sig-gen-row input[type="range"] { width: 80px; accent-color: var(--purple); }
.sig-gen-row select {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 6px;
  font-size: 10px;
  font-family: var(--font-mono);
  outline: none;
}

/* Oscilloscope bottom */
#sim-osc-panel {
  grid-column: 2;
  grid-row: 3;
  background: rgba(5,5,10,0.98);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.osc-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.osc-title {
  font-size: 9px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
}
.osc-ch {
  font-size: 9px;
  font-family: var(--font-mono);
  padding: 1px 6px;
  border-radius: 2px;
}
.osc-ch-1 { background: rgba(0,212,255,0.15); color: var(--cyan); }
.osc-ch-2 { background: rgba(0,255,136,0.15); color: var(--green); }

#osc-main-canvas {
  flex: 1;
  display: block;
  width: 100%;
}

/* ═══════════════════════════════════════════════════════════════
   BOARD EXPLORER
═══════════════════════════════════════════════════════════════ */
.board-layout {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.board-selector {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(10,10,20,0.95);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  flex-shrink: 0;
}

.board-thumb {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px;
  cursor: pointer;
  transition: all var(--t-base);
  white-space: nowrap;
  flex-shrink: 0;
}
.board-thumb:hover { border-color: var(--border-hover); }
.board-thumb.active {
  background: var(--cyan-dim);
  border-color: var(--border-active);
  color: var(--cyan);
}
.board-thumb-name { font-size: 12px; font-weight: 600; }
.board-thumb-mcu { font-size: 9px; color: var(--text-muted); font-family: var(--font-mono); margin-top: 2px; }

.board-main {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.board-header { }
.board-name { font-size: 20px; font-weight: 700; margin-bottom: 10px; }

.board-specs-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.board-spec-chip {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 10px;
  font-family: var(--font-mono);
  display: flex;
  gap: 6px;
}
.board-spec-key { color: var(--text-muted); }
.board-spec-val { color: var(--text-secondary); }

.board-pinout-container {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 16px;
  flex: 1;
}

.board-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  min-height: 300px;
  overflow: hidden;
}

.board-body {
  position: absolute;
  inset: 20px;
  background: linear-gradient(135deg, var(--board-color, #1a4a1a), color-mix(in srgb, var(--board-color, #1a4a1a) 70%, black));
  border-radius: var(--radius);
  border: 2px solid rgba(255,255,255,0.1);
}

.board-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 11px;
  font-family: var(--font-mono);
  color: rgba(255,255,255,0.3);
  text-align: center;
  pointer-events: none;
}

.board-mcu-chip {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background: #111;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
}

.board-pin {
  position: absolute;
  display: flex;
  align-items: center;
  cursor: pointer;
  z-index: 10;
}
.board-pin.left { flex-direction: row; left: -8px; }
.board-pin.right { flex-direction: row-reverse; right: -8px; }

.board-pin-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: all var(--t-fast);
  box-shadow: 0 0 4px currentColor;
}
.board-pin:hover .board-pin-dot,
.board-pin.selected .board-pin-dot {
  transform: scale(1.5);
  box-shadow: 0 0 8px currentColor;
}

.board-pin-label {
  font-size: 8px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  white-space: nowrap;
  padding: 0 4px;
  opacity: 0;
  transition: opacity var(--t-fast);
}
.board-pin:hover .board-pin-label,
.board-pin.selected .board-pin-label { opacity: 1; color: var(--text-primary); }

.board-pin-detail {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.board-pin-detail-placeholder {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
}
.placeholder-icon { font-size: 24px; margin-bottom: 8px; }

.board-pin-detail-content { width: 100%; }
.bpd-num { font-size: 11px; font-family: var(--font-mono); font-weight: 700; margin-bottom: 4px; }
.bpd-name { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.bpd-type {
  display: inline-block;
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  font-size: 11px;
  font-family: var(--font-mono);
  margin-bottom: 12px;
}
.bpd-hint { font-size: 10px; color: var(--text-muted); margin-bottom: 10px; }

.pin-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 0;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}
.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* ═══════════════════════════════════════════════════════════════
   DATASHEET VIEWER
═══════════════════════════════════════════════════════════════ */
.datasheet-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0;
  height: 100%;
  overflow: hidden;
}

.datasheet-toc {
  background: rgba(10,10,20,0.95);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.toc-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}
.toc-title { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.toc-meta { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); margin-top: 2px; }

.toc-list { flex: 1; padding: 8px 0; }

.toc-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  cursor: pointer;
  transition: all var(--t-fast);
  font-size: 11px;
  color: var(--text-secondary);
}
.toc-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.toc-item.active {
  background: var(--cyan-dim);
  color: var(--cyan);
  border-right: 2px solid var(--cyan);
}
.toc-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  width: 16px;
  flex-shrink: 0;
}

.toc-actions { padding: 12px 16px; border-top: 1px solid var(--border); }

.datasheet-content {
  overflow-y: auto;
  padding: 24px 32px;
  background: var(--bg-surface);
}

.ds-section { max-width: 800px; }
.ds-section-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}

.ds-overview-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.ds-chip-badge {
  background: var(--cyan-dim);
  color: var(--cyan);
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}
.ds-chip-mfr { font-size: 12px; color: var(--text-muted); }

.ds-body-text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
}
.ds-body-text p { margin-bottom: 12px; }

.ds-highlights {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-top: 16px;
}
.ds-highlights h4 {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.ds-highlights ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.ds-highlights li {
  font-size: 12px;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
}
.ds-highlights li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--cyan);
}

.ds-table-wrapper { overflow-x: auto; }
.ds-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  font-family: var(--font-mono);
}
.ds-table th {
  padding: 10px 14px;
  text-align: left;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border-active);
  font-size: 11px;
  text-transform: uppercase;
}
.ds-table td {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.ds-table tr:hover td { background: var(--bg-hover); }
.ds-num { text-align: right; }
.ds-typ { color: var(--cyan); font-weight: 600; }
.ds-unit { color: var(--text-muted); }

.ds-example { margin-bottom: 20px; }
.ds-example-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.ds-code {
  background: #000;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--green);
}

.ds-packages { display: flex; gap: 12px; flex-wrap: wrap; }
.ds-package-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  min-width: 140px;
}
.ds-package-name { font-size: 14px; font-weight: 600; font-family: var(--font-mono); color: var(--cyan); margin-bottom: 8px; }
.ds-package-dims { font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); line-height: 1.6; }

/* ═══════════════════════════════════════════════════════════════
   AI ASSISTANT
═══════════════════════════════════════════════════════════════ */
#view-ai {
  display: grid !important;
  grid-template-rows: 1fr auto auto;
  padding: 0 !important;
  height: 100%;
}

#ai-messages {
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ai-message {
  display: flex;
  gap: 12px;
  max-width: 800px;
}
.ai-message.user { flex-direction: row-reverse; align-self: flex-end; }

.ai-message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.ai-message-body { flex: 1; min-width: 0; }

.ai-message-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-secondary);
}
.ai-message.user .ai-message-content {
  background: var(--cyan-dim);
  border-color: rgba(0,212,255,0.2);
  color: var(--text-primary);
}
.ai-message-content strong { color: var(--text-primary); }
.ai-message-content code {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}
.ai-code {
  background: #000;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--green);
  overflow-x: auto;
  margin: 8px 0;
}
.ai-message-content ul { padding-left: 16px; margin: 6px 0; }
.ai-message-content li { margin-bottom: 4px; }

.ai-message-time {
  font-size: 9px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 4px;
  padding: 0 4px;
}
.ai-message.user .ai-message-time { text-align: right; }

/* Suggested Queries */
#ai-suggestions {
  padding: 10px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  background: rgba(10,10,20,0.8);
}

.ai-suggestion {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px 12px;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.ai-suggestion:hover {
  border-color: var(--border-hover);
  color: var(--cyan);
  background: var(--cyan-dim);
}

/* AI Input */
#ai-input-area {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  background: rgba(10,10,20,0.95);
}

#ai-input {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--t-base);
  resize: none;
  height: 42px;
}
#ai-input:focus { border-color: var(--border-active); }
#ai-input::placeholder { color: var(--text-muted); }

/* ═══════════════════════════════════════════════════════════════
   PROJECTS
═══════════════════════════════════════════════════════════════ */
.projects-layout { display: flex; flex-direction: column; gap: 16px; }

.projects-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.projects-header h2 { font-size: 18px; font-weight: 700; }

.projects-grid-full {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.project-card-full {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent, var(--cyan));
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: all var(--t-base);
  cursor: pointer;
}
.project-card-full:hover {
  border-color: var(--accent, var(--border-hover));
  background: var(--bg-hover);
}
.project-card-full-icon { font-size: 28px; flex-shrink: 0; }
.project-card-full-body { flex: 1; min-width: 0; }
.project-card-full-name { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.project-card-full-desc { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }
.project-card-full-comps { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 8px; }
.comp-chip {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 2px 8px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}
.project-card-full-tags { display: flex; gap: 4px; flex-wrap: wrap; }
.project-card-full-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
}
.project-modified { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════════ */
@media (max-width: 1200px) {
  .quick-access-grid { grid-template-columns: repeat(3, 1fr); }
  .protocol-grid { grid-template-columns: repeat(3, 1fr); }
  .dash-stats-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  #view-viewer {
    grid-template-columns: 1fr !important;
    grid-template-rows: auto 1fr auto !important;
  }
  #viewer-sidebar { grid-row: 1; grid-column: 1; max-height: 200px; }
  #viewer-canvas-area { grid-column: 1; grid-row: 2; }
  #viewer-pin-panel { grid-column: 1; grid-row: 3; max-height: 200px; }
  #pin-detail-panel { display: none; }

  #view-simulator {
    grid-template-columns: 1fr !important;
    grid-template-rows: 48px 1fr 120px !important;
  }
  #sim-palette { display: none; }
  #sim-instruments { display: none; }
  #sim-canvas-area { grid-column: 1; grid-row: 2; }
  #sim-osc-panel { grid-column: 1; grid-row: 3; }

  .board-pinout-container { grid-template-columns: 1fr; }
  .datasheet-layout { grid-template-columns: 1fr; }
  .datasheet-toc { display: none; }
}

/* ── Animations ───────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { transform: translateX(-10px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 8px var(--cyan-glow); }
  50%       { box-shadow: 0 0 20px var(--cyan-glow); }
}

.animate-in { animation: fadeIn 0.3s ease forwards; }