/* ═══════════════════════════════════════════════════════════
   RoboFlow — Design System & Global Styles
   Dark sci-fi HMI aesthetic
═══════════════════════════════════════════════════════════ */

/* ── Google Fonts (loaded via HTML) ─────────────────────── */

/* ── Design Tokens ───────────────────────────────────────── */
:root {
  /* Background layers */
  --bg-void:       #0e1012;
  --bg-base:       #14171b;
  --bg-surface:    #1d2228;
  --bg-elevated:   #252b33;
  --bg-panel:      #1b2026;
  --bg-card:       #2a3038;

  /* Borders */
  --border-faint:  rgba(232, 227, 215, 0.08);
  --border-subtle: rgba(232, 227, 215, 0.16);
  --border-dim:    rgba(232, 227, 215, 0.26);
  --border-accent: rgba(232, 227, 215, 0.42);

  /* Text */
  --text-bright:   #f0ebdf;
  --text-primary:  #d6d2c8;
  --text-secondary:#b2b6bc;
  --text-muted:    #8a919a;

  /* Brand accents */
  --cyan:          #e8e3d7;
  --cyan-dim:      rgba(232, 227, 215, 0.16);
  --cyan-glow:     rgba(232, 227, 215, 0.34);
  --green:         #c5cbc0;
  --green-dim:     rgba(197, 203, 192, 0.18);
  --green-glow:    rgba(197, 203, 192, 0.32);
  --orange:        #d4c4aa;
  --orange-dim:    rgba(212, 196, 170, 0.18);
  --red:           #d17c7c;
  --red-dim:       rgba(209, 124, 124, 0.18);
  --amber:         #d1b690;
  --purple:        #b4b0bf;

  /* Block category colors */
  --cat-special:    #16a34a;
  --cat-motion:     #1d4ed8;
  --cat-navigation: #7c3aed;
  --cat-agv:        #065f46;
  --cat-control:    #d97706;
  --cat-sensing:    #991b1b;

  /* Spacing */
  --sz-nav:   56px;
  --sz-exec:  52px;
  --sz-palette: 200px;
  --sz-props:   240px;

  /* Transitions */
  --ease:     cubic-bezier(0.4, 0, 0.2, 1);
  --fast:     0.15s;
  --med:      0.25s;
  --slow:     0.4s;

  /* Shadows */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.48);
  --shadow-md:  0 8px 26px rgba(0,0,0,0.56);
  --shadow-lg:  0 14px 56px rgba(0,0,0,0.65);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.52), inset 0 1px 0 rgba(232,227,215,0.06);
}

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

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar              { width: 6px; height: 6px; }
::-webkit-scrollbar-track        { background: var(--bg-base); }
::-webkit-scrollbar-thumb        { background: var(--border-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover  { background: var(--text-muted); }

/* ── Selection ───────────────────────────────────────────── */
::selection { background: var(--cyan-dim); color: var(--cyan); }

/* ════════════════════════════════════════
   TOP NAVIGATION
════════════════════════════════════════ */
#main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--sz-nav);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  background: rgba(8, 12, 20, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 1px 0 rgba(232,227,215,0.08), var(--shadow-md);
}

/* Brand */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-hex {
  font-size: 24px;
  color: var(--cyan);
  filter: drop-shadow(0 0 8px var(--cyan-glow));
  animation: hexPulse 3s ease-in-out infinite;
}
@keyframes hexPulse {
  0%, 100% { filter: drop-shadow(0 0 6px var(--cyan-glow)); }
  50%       { filter: drop-shadow(0 0 14px var(--cyan)); }
}

.brand-text-wrap { display: flex; flex-direction: column; gap: 1px; }
.brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  line-height: 1;
}
.brand-tag {
  font-size: 9px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Mode switcher */
.nav-modes {
  display: flex;
  gap: 4px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 4px;
  margin: 0 auto;
}

.mode-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 16px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--fast) var(--ease);
  white-space: nowrap;
}
.mode-btn svg { opacity: 0.6; transition: opacity var(--fast); }
.mode-btn:hover { color: var(--text-primary); background: var(--border-faint); }
.mode-btn:hover svg { opacity: 0.9; }
.mode-btn.active {
  background: var(--cyan-dim);
  color: var(--cyan);
  box-shadow: inset 0 1px 0 rgba(232,227,215,0.16), 0 0 12px rgba(232,227,215,0.08);
}
.mode-btn.active svg { opacity: 1; }

/* Nav right */
.nav-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

/* Status pill */
.status-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--med) var(--ease);
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Pill states */
.status-pill.sim {
  background: rgba(232,227,215,0.1);
  border-color: rgba(232,227,215,0.25);
  color: var(--cyan);
}
.status-pill.sim .status-dot {
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
  animation: blink 2s ease-in-out infinite;
}
.status-pill.connected {
  background: rgba(0,255,136,0.08);
  border-color: rgba(0,255,136,0.2);
  color: var(--green);
}
.status-pill.connected .status-dot {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}
.status-pill.disconnected {
  background: rgba(255,51,102,0.08);
  border-color: rgba(255,51,102,0.2);
  color: var(--red);
}
.status-pill.disconnected .status-dot { background: var(--red); }
.status-pill.connecting {
  background: rgba(245,158,11,0.08);
  border-color: rgba(245,158,11,0.2);
  color: var(--amber);
}
.status-pill.connecting .status-dot {
  background: var(--amber);
  animation: blink 0.8s ease-in-out infinite;
}
.status-pill.error {
  background: rgba(255,51,102,0.12);
  border-color: rgba(255,51,102,0.3);
  color: var(--red);
}
.status-pill.error .status-dot {
  background: var(--red);
  box-shadow: 0 0 8px var(--red);
  animation: blink 0.5s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* Icon button */
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--fast) var(--ease);
}
.icon-btn:hover {
  border-color: var(--border-dim);
  color: var(--text-primary);
  background: rgba(255,255,255,0.04);
}

/* ════════════════════════════════════════
   SETTINGS DRAWER
════════════════════════════════════════ */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 16, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1100;
  opacity: 0;
  transition: opacity var(--med) var(--ease);
}
.overlay:not(.hidden) { opacity: 1; }

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 360px;
  z-index: 1200;
  background: var(--bg-panel);
  border-left: 1px solid var(--border-subtle);
  box-shadow: -8px 0 48px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform var(--med) var(--ease);
}
.drawer.hidden { transform: translateX(380px); }

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.drawer-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-bright);
}

.drawer-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.settings-section { padding: 4px 0; }
.settings-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.field-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  margin-top: 14px;
}
.field-label:first-child { margin-top: 0; }

.field-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 10px;
  line-height: 1.6;
}
.field-hint code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--cyan);
  background: var(--cyan-dim);
  padding: 2px 5px;
  border-radius: 3px;
}

.input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.text-input {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  outline: none;
  transition: border-color var(--fast);
}
.text-input:focus { border-color: var(--cyan); box-shadow: 0 0 0 2px var(--cyan-dim); }

.select-input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237090b0' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  padding-right: 30px;
}
.select-input:focus { border-color: var(--cyan); }

.btn-primary, .btn-secondary {
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--fast) var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #000;
}
.btn-primary:hover {
  background: #33dcff;
  box-shadow: 0 0 12px var(--cyan-glow);
}
.btn-secondary {
  background: transparent;
  border-color: var(--border-dim);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-secondary:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-secondary.active {
  background: var(--cyan-dim);
  border-color: var(--cyan);
  color: var(--cyan);
}
.btn-row  { margin-top: 10px; }
.full-width { width: 100%; justify-content: center; }

.sim-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
  animation: blink 2s ease-in-out infinite;
  display: inline-block;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}
.slider-row input[type=range] {
  flex: 1;
  appearance: none;          /* Standard — Firefox, Edge */
  -webkit-appearance: none;  /* WebKit/Blink — Chrome, Safari */
  height: 4px;
  border-radius: 2px;
  background: var(--bg-elevated);
  outline: none;
  cursor: pointer;
}
.slider-row input[type=range]::-webkit-slider-thumb {
  appearance: none;          /* Standard */
  -webkit-appearance: none;  /* WebKit */
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan-glow);
  cursor: grab;
}
.slider-row input[type=range]:active::-webkit-slider-thumb { cursor: grabbing; }
.slider-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--cyan);
  min-width: 56px;
  text-align: right;
}

.divider {
  height: 1px;
  background: var(--border-faint);
  margin: 20px 0;
}

/* ════════════════════════════════════════
   MAIN APP LAYOUT
════════════════════════════════════════ */
#app {
  position: fixed;
  top: var(--sz-nav);
  left: 0;
  right: 0;
  bottom: var(--sz-exec);
  overflow: hidden;
}

.panel {
  position: absolute;
  inset: 0;
  display: none;
  opacity: 0;
  transition: opacity var(--med) var(--ease);
}
.panel.active {
  display: flex;
  opacity: 1;
  pointer-events: auto;
}

/* Utility */
.hidden { display: none !important; }

/* ════════════════════════════════════════
   EXECUTION BAR
════════════════════════════════════════ */
#execution-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--sz-exec);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  background: rgba(8, 12, 20, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  box-shadow: 0 -1px 0 rgba(232,227,215,0.08);
}
#execution-bar.hidden { display: none; }

.exec-left, .exec-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.exec-log {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
  min-width: 0;
}
.exec-log-icon {
  font-size: 8px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.exec-log.running .exec-log-icon { color: var(--green); animation: blink 1s infinite; }
.exec-log.paused  .exec-log-icon { color: var(--amber); }
.exec-log.done    .exec-log-icon { color: var(--green); }
.exec-log.error   .exec-log-icon { color: var(--red); }

#exec-status-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.exec-log.running #exec-status-text { color: var(--green); }
.exec-log.error   #exec-status-text { color: var(--red); }
.exec-log.paused  #exec-status-text { color: var(--amber); }

.exec-step-badge {
  background: var(--cyan-dim);
  color: var(--cyan);
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid rgba(232,227,215,0.24);
  flex-shrink: 0;
}
.exec-step-badge.hidden { display: none; }

/* Exec buttons */
.exec-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-dim);
  background: transparent;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--fast) var(--ease);
  white-space: nowrap;
}
.exec-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.exec-btn.run {
  background: var(--green-dim);
  border-color: rgba(0,255,136,0.25);
  color: var(--green);
}
.exec-btn.run:not(:disabled):hover {
  background: rgba(0,255,136,0.2);
  box-shadow: 0 0 10px var(--green-glow);
}
.exec-btn.pause:not(:disabled):hover {
  border-color: var(--amber);
  color: var(--amber);
}
.exec-btn.stop:not(:disabled):hover {
  border-color: var(--red);
  color: var(--red);
}
.exec-btn.secondary { font-size: 11.5px; }
.exec-btn.secondary:hover { border-color: var(--border-dim); color: var(--text-primary); }
.exec-btn.secondary.danger:hover { border-color: var(--red); color: var(--red); }

/* ════════════════════════════════════════
   TOAST NOTIFICATIONS
════════════════════════════════════════ */
#toast-container {
  position: fixed;
  top: calc(var(--sz-nav) + 12px);
  right: 16px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-lg);
  font-size: 12.5px;
  color: var(--text-primary);
  max-width: 360px;
  transform: translateX(120%);
  opacity: 0;
  transition: all var(--med) var(--ease);
  pointer-events: auto;
  backdrop-filter: blur(12px);
}
.toast.visible { transform: translateX(0); opacity: 1; }
.toast-icon { font-size: 15px; flex-shrink: 0; }
.toast-msg  { line-height: 1.4; }

.toast-success { border-color: rgba(0,255,136,0.25); background: rgba(0,255,136,0.06); }
.toast-error   { border-color: rgba(255,51,102,0.3); background: rgba(255,51,102,0.08); }
.toast-warning { border-color: rgba(245,158,11,0.3); background: rgba(245,158,11,0.06); }
.toast-info    { border-color: rgba(232,227,215,0.24);  background: rgba(232,227,215,0.08); }

/* ════════════════════════════════════════
   TOGGLE SWITCH
════════════════════════════════════════ */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-knob {
  position: absolute;
  inset: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-dim);
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--fast) var(--ease);
}
.toggle-knob::before {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  left: 2px;
  bottom: 2px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: all var(--fast) var(--ease);
}
.toggle-switch input:checked + .toggle-knob {
  background: var(--cyan-dim);
  border-color: var(--cyan);
}
.toggle-switch input:checked + .toggle-knob::before {
  transform: translateX(16px);
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
}