/* Custom styles for dropdowns */
/* Header above #sidePreview: both used z-index 1001; sidePreview is later in DOM so it covered BASIC/AI dropdowns */
#header {
  position: relative;
  z-index: 1002;
}
/* Dropdown menu above header chrome; stay below Bootstrap modal (.modal 1050 / backdrop 1040) */
#sideSerialControls .dropdown-menu,
.mode-dropdown-menu {
  z-index: 1003 !important;
}
/* Remove focus outline from logo */
#logo_Titre a,
#logo_Titre img {
  outline: none !important;
  box-shadow: none !important;
}

select {
  background-color: #990099 !important;
  color: white !important;
  border: 1px solid #990099 !important;
  padding: 5px 10px !important;
  border-radius: 4px !important;
}

select:hover {
  background-color: #b300b3 !important;
}

select:focus {
  outline: none !important;
  box-shadow: 0 0 5px #990099 !important;
}

select option {
  background-color: white !important;
  color: #990099 !important;
}

select option:hover {
  background-color: #f0f0f0 !important;
}

/* Style for the dropdown arrow */
select {
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  appearance: none !important;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3e%3cpath d='M7 10l5 5 5-5z'/%3e%3c/svg%3e") !important;
  background-repeat: no-repeat !important;
  background-position: right 10px center !important;
  background-size: 20px !important;
  padding-right: 30px !important;
}

/* Hide the Blockly workspace grid for a plain background */
.blocklyMainBackground {
  fill: #fff !important;
  fill-opacity: 1 !important;
}

.blocklyGridPattern {
  display: none !important;
}

#mainContent {
  position: absolute;
  top: 48px;
  /* adjust if you have a header */
  left: 0;
  bottom: 0;
  width: 75vw;
  /* 75% of the viewport width */
  height: calc(100vh - 48px);
  /* adjust for header */
  overflow: auto;
  /* Rounding the main workspace "sheet" */
  border-top-right-radius: 16px;
  border-bottom-right-radius: 16px;
  background-color: #fff;
  /* Ensure opaque background */
  box-shadow: 2px 0 10px rgba(153, 0, 153, 0.1);
  /* Subtle purple-ish shadow */
  /* Note: overflow:hidden might clip scrollbars, using auto with rounding usually warrants custom scrollbar styling or careful padding. 
     For now, we keep overflow:auto but be aware that scrollbars might cut the corner visually on Windows. */
}

#sidePreview,
#serialMonitor,
.serial-controls,
.serial-monitor,
.serial-monitor-row,
.serial-status-msg,
.serial-output {
  margin: 0 !important;
  padding: 0 !important;
}

.serial-controls {
  gap: 10px;
}

.serial-monitor {
  margin-top: 10px !important;
}

.serial-status-msg {
  margin-bottom: 4px !important;
}

/* Match serial output width to code preview */
.serial-output {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  height: auto;
  min-height: 120px;
  max-height: 25vh;
  overflow: auto;
  background: #ffffff;
  color: #000000;
  padding: 8px;
  margin-top: 8px !important;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  box-sizing: border-box;
  font-family: monospace;
  font-size: 0.9em;
  line-height: 1.4;
}

/* Responsive adjustments for serial output */
@media (max-width: 1400px) {
  .serial-output {
    max-height: 22vh;
    font-size: 0.88em;
  }
}

@media (max-width: 1200px) {
  .serial-output {
    max-height: 20vh;
    font-size: 0.85em;
  }
}

@media (max-width: 800px) {
  .serial-output {
    max-height: 18vh;
    min-height: 100px;
    font-size: 0.8em;
    padding: 6px;
  }
}

@media (max-width: 600px) {
  .serial-output {
    max-height: 15vh;
    min-height: 80px;
    font-size: 0.75em;
    padding: 4px;
  }
}

#sidePreview {
  position: absolute;
  top: 48px;
  /* adjust for header */
  right: 0;
  bottom: 0;
  width: 25vw;
  /* 25% of the viewport width */
  height: calc(100vh - 48px);
  background: #ffffff;
  box-shadow: -2px 0 8px rgba(153, 0, 153, 0.08);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}

#pre_previewArduino {
  flex: 1 1 auto;
  width: 100%;
  height: 80%;
  margin: 0;
  padding: 1em;
  font-size: 1.1em;
  background: #e5e5e5;
  color: #6e6e6e;
  overflow: auto;
  border: none;
  position: relative;
}

#btn_CopyCode {
  flex: 0 0 auto;
  margin: 1em;
  top: 50px;
  align-self: flex-end;
  background: #fdfdfd !important;
  color: #990099 !important;
  border: 1px solid hsl(0, 0%, 100%) !important;
  box-shadow: none !important;
  font-weight: 600;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}

#btn_CopyCode:hover,
#btn_CopyCode:focus {
  background: #7c007e !important;
  color: #ffffff !important;
  border-color: #790071 !important;
  outline: none !important;
}

#content_blocks {
  position: relative;
}

#tools_blocks {
  position: absolute;
  top: 50px;
  right: 25vw;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 6px 8px;
  display: flex;
  gap: 8px;
}

#tools_blocks .btn {
  margin: 0;
  box-shadow: none;
  border-radius: 8px;
}

.serial-dropdown {
  all: unset;
}

#sideSerialControls {
  display: flex;
  align-items: center;
  gap: 12px;
  background: none;
  margin-bottom: 6px;
  padding: 6px 10px;
  position: absolute;
  top: 3px;
  right: 15px;
  z-index: 1001;
}

/* Optimize header controls for HD screens */
@media (max-width: 1400px) {
  #sideSerialControls {
    gap: 8px;
    padding: 4px 8px;
  }
  
  #sideSerialControls select,
  #sideSerialControls button {
    height: 26px;
    font-size: 0.9em;
    padding: 2px 8px !important;
  }
}

#sideSerialControls select,
#sideSerialControls button:not(.mode-dropdown-toggle) {
  height: 28px;
  min-width: 60px !important;
  padding: 1px !important;
  border-radius: 6px !important;
  font-size: 1em;
  font-weight: normal !important;
  color: #990099 !important;
  background: #fff !important;
  border: 2px solid #990099 !important;
  box-sizing: border-box;
  outline: none;
  margin: 0;
  box-shadow: none;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s, border 0.2s !important;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: center;
}

#sideSerialControls select:focus,
#sideSerialControls select:hover,
#sideSerialControls button:hover:not(.mode-dropdown-toggle):not(#btn_boards_modal) {
  background: #990099 !important;
  color: #fff !important;
  border: 1px solid #990099 !important;
}

#baudRateSelect,
#serialExpandBaudRate {
  border: .5px solid #990099 !important;
  margin-top: 1px;
  border-radius: 6px;
  color: #990099;
  height: 24px;
  padding: 0 14px;
  font-size: 1.1em;
  font-weight: bold;
  box-sizing: border-box;
}


#baudRateSelect:focus,
#baudRateSelect:hover {
  background: #990099;
  color: #fff;
  border: 1px solid #990099 !important;
}

/* Refined Serial Monitor UI */

.serial-btn-connect {
  background: #fff !important;
  color: #333 !important;
  /* Darker text */
  border: 1px solid #ddd !important;
  font-weight: 600 !important;
  border-radius: 4px !important;
  padding: 0 12px;
  height: 32px !important;
  font-size: 0.9em !important;
  transition: all 0.2s ease !important;
}

.serial-btn-connect:hover {
  background: #fff !important;
  color: #990099 !important;
  border-color: #990099 !important;
  box-shadow: 0 2px 4px rgba(153, 0, 153, 0.1);
}

/* Kid-friendly state colors: green = ready/on, red = stop/off */
.serial-btn-connect.serial-on {
  background: #16a34a !important;
  border-color: #16a34a !important;
  color: #fff !important;
}

.serial-btn-connect.serial-on:hover {
  background: #15803d !important;
  border-color: #15803d !important;
  color: #fff !important;
  box-shadow: 0 2px 6px rgba(22, 163, 74, 0.35);
}

.serial-btn-connect.serial-off {
  background: #dc2626 !important;
  border-color: #dc2626 !important;
  color: #fff !important;
}

.serial-btn-connect.serial-off:hover {
  background: #b91c1c !important;
  border-color: #b91c1c !important;
  color: #fff !important;
  box-shadow: 0 2px 6px rgba(220, 38, 38, 0.35);
}

.serial-baudrate {
  width: 80px;
  color: #333 !important;
  /* Darker text */
  border: 1px solid #ddd !important;
  background: #fff !important;
  font-weight: 600 !important;
  /* Match button weight */
  border-radius: 4px !important;
  height: 32px !important;
  padding: 0 5px !important;
  font-size: 0.9em !important;
}

.serial-baudrate:hover,
.serial-baudrate:focus {
  border-color: #990099 !important;
  color: #333 !important;
}

/* Input Group Style for Bottom Row */
.serial-input {
  flex: 1;
  height: 32px;
  border: 1px solid #ddd;
  background: #fff;
  color: #333;
  padding: 0 12px;
  border-radius: 20px 0 0 20px;
  /* Rounded left */
  border-right: none;
  transition: border-color 0.2s;
  font-size: 0.95em;
  margin: 0;
  /* Enforce no margin */
}

.serial-input:focus {
  border-color: #990099;
  outline: none;
  border-right: 1px solid #990099;
  /* Add border on focus */
}

.serial-btn-send {
  width: 40px;
  height: 32px;
  background: #990099 !important;
  color: #fff !important;
  border: 1px solid #990099 !important;
  border-radius: 0 20px 20px 0 !important;
  /* Rounded right */
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s !important;
  margin: 0;
  /* Enforce no margin */
}

.serial-btn-send:hover {
  background: #800080 !important;
}


.serial-monitor-row {
  display: flex;
  flex-direction: column;
  gap: 15px;
  /* Increased gap between rows */
  margin-bottom: 10px;
  width: 100%;
  padding: 15px 10px;
  /* Increased top/bottom padding */
}

.serial-monitor-top {
  display: flex;
  align-items: center;
  justify-content: center;
  /* Center aligned */
  width: 100%;
  gap: 12px;
}

.serial-monitor-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  gap: 0;
  /* Force zero gap */
}

/* Fix for Expand Button */
#serialExpandBtn {
  background: #fff !important;
  border: 1px solid #ddd !important;
  color: #666 !important;
  border-radius: 4px !important;
  width: 32px;
  height: 32px;
  margin-left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease !important;
}

#serialExpandBtn:hover {
  color: #990099 !important;
  border-color: #990099 !important;
  background: #fff !important;
}

/* Clear serial output button */
#clearSerialBtn {
  border-radius: 4px !important;
  width: 32px;
  height: 32px;
  background: #fff !important;
  border: 1px solid #ddd !important;
  color: #666 !important;
  transition: all 0.2s ease !important;
}

#clearSerialBtn:hover {
  background: #fff1f2 !important;
  border-color: #dc2626 !important;
  color: #dc2626 !important;
}


#serialExpandModal .modal-dialog {
  width: 700px;
  max-width: 90vw;
  height: 500px;
  max-height: 90vh;
  margin: 30px auto;
}

#serialExpandModal .modal-content {
  height: 100%;
}

@media (max-width: 800px) {
  #serialExpandModal .modal-dialog {
    width: 98vw;
    height: 90vh;
    margin: 10px auto;
  }
}

#serialExpandOutput {
  width: 100%;
  height: 340px;
  min-height: 200px;
  max-height: 60vh;
  overflow: auto;
  background: #f7f5f5;
  color: #000;
  padding: 6px 4px !important;
  border-radius: 4px;
  box-sizing: border-box;
  margin: 0;
}

@media (max-width: 800px) {
  #serialExpandOutput {
    height: 30vh;
    max-height: 40vh;
  }
}

#sideSerialControls select,
#sideSerialControls button {
  font-size: 0.95em;
  padding: 1px 1px;
  border: none;
  border-radius: 6px;
  background: white;
  color: #8e24aa;
  font-weight: bold;
  cursor: pointer;
}

/* === Moved from inline <style> in index.html === */

#serial-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #8e24aa;
  padding: 12px 24px;
  border-radius: 8px;
}

#serial-controls select,
#serial-controls button {
  font-size: 0.95em;
  padding: 4px 10px;
  border: none;
  border-radius: 6px;
  background: white;
  color: #8e24aa;
  font-weight: bold;
  cursor: pointer;
}

#serial-controls button {
  background: #9c27b0;
  color: white;
  transition: background 0.2s;
}

#serial-controls button:hover {
  background: #7b1fa2;
}

#sideSerialControls {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  margin-bottom: 6px;
}

#sideSerialControls select,
#sideSerialControls button {
  font-size: 0.95em;
  padding: 4px 10px;
  border: none;
  border-radius: 6px;
  background: white;
  color: #8e24aa;
  font-weight: bold;
  cursor: pointer;
}

#sideSerialControls button {
  background: #fff;
  color: #990099;
  border: 2px solid #990099;
  font-weight: bold;
  transition: background 0.2s, color 0.2s, border 0.2s;
}

#sideSerialControls button:hover {
  background: #990099;
  color: #fff;
  border: 2px solid #990099;
}

#sideSerialControls select {
  color: #990099 !important;
  border: 2px solid #990099 !important;
  background: #fff !important;
  font-weight: bold !important;
  transition: background 0.2s, color 0.2s, border 0.2s !important;
}

#sideSerialControls select:hover,
#sideSerialControls select:focus {
  background: #990099 !important;
  color: #fff !important;
  border: 2px solid #990099 !important;
}

#sideExpandModal .modal-dialog {
  max-width: 90vw;
}

#sideExpandModal .modal-body {
  height: 60vh;
  overflow: auto;
  padding-top: 48px;
}

#sideExpandOutput {
  width: 100%;
  min-height: 400px;
  max-height: 55vh;
  font-size: 1.2em;
  background: #f7f5f5;
  color: #000;
  border-radius: 4px;
  padding: 12px;
  box-sizing: border-box;
}

/* === End moved inline CSS === */

/* Serial Tabs */
.serial-tabs {
  display: flex;
  gap: 2px;
  background: #f0f0f0;
  padding: 4px 4px 0;
  border-radius: 4px 4px 0 0;
  margin-bottom: 0 !important;
  flex-shrink: 0;
}

.serial-tab-btn {
  padding: 8px 16px;
  border: none;
  background: #e0e0e0;
  color: #666;
  font-weight: bold;
  cursor: pointer;
  border-radius: 8px 8px 0 0;
  transition: all 0.2s ease;
  flex: 1;
  text-align: center;
}

.serial-tab-btn:hover {
  background: #ffffff;
  color: #1d1d1d;
}


.serial-monitor {
  background: white;
  border: 1px solid #ddd;
  /* Keep side/bottom borders */
  border-top: 6px solid #f0f0f0;
  /* Thicker top border matching tab bg to fake a gap */
  padding: 20px 15px 15px 15px;
  /* Aggressive top padding */
  margin-top: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-sizing: border-box;
}

/* Ensure content has space from top */
.serial-monitor-row {
  margin-top: 0;
  /* Let container padding handle it */
  gap: 15px;
}


.serial-monitor-top {
  margin-top: 5px;
  /* Extra nudge */
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: 20px !important;
  /* Forces 20px space between horizontal buttons */
  width: 100%;
}

.serial-tab-btn.active {
  background: #990099;
  color: white;
  border-radius: 8px 8px 0 0;
}

/* Responsive tab buttons */
@media (max-width: 600px) {
  .serial-tab-btn {
    padding: 6px 12px;
    font-size: 0.85em;
  }
}

.messages-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: #ffffff;
  border-bottom: 0px solid #ffffff;
}

.messages-header h4 {
  margin: 0;
  color: #333;
  font-size: 1em;
}

#clearMessages {
  padding: 2px 8px;
  font-size: 0.9em;
  background: #f0f0f0;
  border: 0px solid #ddd;
  border-radius: 3px;
  color: #666;
}

#clearMessages:hover {
  background: #e0e0e0;
  color: #333;
}

/* Ensure serial monitor and messages monitor have consistent styling */
#serialMonitor,
#messagesMonitor {
  border: none;
  border-radius: 0 0 4px 4px;
  margin-top: -1px;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

/* Message types in the messages monitor */
.message {
  padding: 4px 8px;
  margin: 2px 0;
  border-radius: 3px;
  font-family: monospace;
  font-size: 0.9em;
  white-space: pre-wrap;
  /* Fix for background color clipping */
  word-break: break-word;
  /* Ensure clear wrapping */
}

.message.info {
  color: #0066cc;
  background: #e6f3ff;
}

.message.success {
  color: #008800;
  background: #e6ffe6;
}

.message.warning {
  color: #cc6600;
  background: #fff3e6;
}

.message.error {
  color: #cc0000;
  background: #ffe6e6;
}

/* Serial output area */
#serialOutput {
  background: #ffffff;
  border: 1px solid #ababab;
  color: #000000;
  font-family: monospace;
  font-size: 0.9em;
  padding: 8px;
  border-radius: 4px;
  height: auto;
  min-height: 100px;
  max-height: 25vh;
  overflow-y: auto;
  line-height: 1.4;
}

/* Messages output area */
#messagesOutput {
  background: #ffffff;
  border: 0px solid #e0e0e0;
  color: #000000;
  font-family: monospace;
  font-size: 0.9em;
  border-radius: 4px;
  height: auto;
  min-height: 100px;
  max-height: 25vh;
  overflow-y: auto;
  margin: 0 !important;
  padding: 8px;
  line-height: 1.4;
}

/* Responsive adjustments for both outputs */
@media (max-width: 1400px) {
  #serialOutput,
  #messagesOutput {
    max-height: 22vh;
    font-size: 0.88em;
  }
}

@media (max-width: 1200px) {

  #serialOutput,
  #messagesOutput {
    max-height: 20vh;
    font-size: 0.85em;
  }
}

@media (max-width: 800px) {

  #serialOutput,
  #messagesOutput {
    max-height: 18vh;
    min-height: 100px;
    font-size: 0.8em;
    padding: 6px;
  }
}

@media (max-width: 600px) {

  #serialOutput,
  #messagesOutput {
    max-height: 15vh;
    min-height: 80px;
    font-size: 0.75em;
    padding: 4px;
  }
}

#messagesMonitor.serial-monitor {
  min-height: 0 !important;
  height: auto !important;
  padding: 0 !important;
  margin: 0 !important;
  background: transparent !important;
  border: none !important;
  display: flex;
  flex-direction: column;
}

/* Ensure both monitors have consistent responsive behavior */
#serialMonitor,
#messagesMonitor {
  border: none;
  border-radius: 0 0 4px 4px;
  margin-top: -1px;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

/* Make the output areas flexible within their containers */
#serialMonitor .serial-output,
#messagesMonitor .serial-output {
  flex: 1;
  min-height: 120px;
  max-height: none;
}

/* Responsive adjustments for the side preview panel */
/* HD screens (1366x768) - optimize for smaller desktop displays */
@media (max-width: 1400px) {
  #sidePreview {
    width: 28vw;
  }

  #mainContent {
    width: 72vw;
  }

  /* Slightly reduce font sizes for better fit */
  #pre_previewArduino {
    font-size: 1em;
  }

  .blocklyTreeLabel {
    font-size: 14px !important;
  }

  /* Optimize serial controls for smaller screens */
  #sideSerialControls button,
  #sideSerialControls select {
    font-size: 0.9em;
    padding: 2px 8px !important;
  }
}

@media (max-width: 1200px) {
  #sidePreview {
    width: 30vw;
  }

  #mainContent {
    width: 70vw;
  }
}

@media (max-width: 800px) {
  #sidePreview {
    width: 35vw;
  }

  #mainContent {
    width: 65vw;
  }
}

@media (max-width: 600px) {
  #sidePreview {
    width: 40vw;
  }

  #mainContent {
    width: 60vw;
  }
}

/* Ensure the serial monitor row doesn't interfere with responsive output */
.serial-monitor-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  justify-content: flex-start;
  flex-shrink: 0;
  margin-bottom: 8px;
}

.serial-monitor-top {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.serial-monitor-bottom {
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: center;
  width: 100%;
}

/* Responsive controls */
@media (max-width: 600px) {
  .serial-monitor-top {
    gap: 4px;
  }

  .serial-monitor-bottom {
    gap: 4px;
  }

  .serial-btn-connect,
  .serial-baudrate,
  .serial-btn-send {
    font-size: 0.8em;
    padding: 4px 8px;
  }

  .serial-input {
    font-size: 0.8em;
    padding: 4px 6px;
  }
}

#previewExpandBtn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 26px;
  height: 26px;
  padding: 0;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid #990099;
  border-radius: 6px;
  color: #990099;
  font-size: 1.1em;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border 0.15s;
}

#previewExpandBtn:hover,
#previewExpandBtn:focus {
  background: #f3e6fa;
  color: #7c007e;
  border: 1.5px solid #7c007e;
  outline: none;
}

#pre_previewArduino {
  position: relative;
}

#previewExpandBtn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 26px;
  height: 26px;
  padding: 0;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid #990099;
  border-radius: 6px;
  color: #990099;
  font-size: 1.1em;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border 0.15s;
}

#previewExpandBtn:hover,
#previewExpandBtn:focus {
  background: #f3e6fa;
  color: #7c007e;
  border: 1.5px solid #7c007e;
  outline: none;
}

.arduino-preview-container {
  position: relative;
  width: 100%;
  max-width: 100%;
  min-width: 180px;
  margin: 0 auto;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  height: 55vh;
  max-height: 600px;
  min-height: 320px;
  transition: height 0.2s;
  flex-shrink: 0;
}

#pre_previewArduino {
  width: 100%;
  height: 100%;
  min-height: 280px;
  max-height: 100%;
  margin: 0;
  padding: 1em;
  font-size: 1em;
  background: #e5e5e5;
  color: #6e6e6e;
  overflow: auto;
  border: none;
  border-radius: 8px;
  box-sizing: border-box;
  line-height: 1.4;
}

/* Responsive adjustments for arduino preview */
@media (max-width: 1400px) {
  .arduino-preview-container {
    height: 52vh;
    max-height: 500px;
    min-height: 260px;
  }

  #pre_previewArduino {
    font-size: 0.95em;
    padding: 0.85em;
    min-height: 240px;
  }
}

@media (max-width: 1200px) {
  .arduino-preview-container {
    height: 50vh;
    max-height: 550px;
    min-height: 280px;
  }

  #pre_previewArduino {
    font-size: 0.95em;
    padding: 0.8em;
    min-height: 250px;
  }
}

@media (max-width: 800px) {
  .arduino-preview-container {
    height: 45vh;
    max-height: 500px;
    min-height: 250px;
  }

  #pre_previewArduino {
    font-size: 0.9em;
    padding: 0.6em;
    min-height: 220px;
  }
}

@media (max-width: 600px) {
  .arduino-preview-container {
    height: 42vh;
    max-height: 450px;
    min-height: 230px;
  }

  #pre_previewArduino {
    font-size: 0.85em;
    padding: 0.5em;
    min-height: 200px;
  }
}

.hidden-section {
  display: none !important;
}

/* Ensure the serial tabs and monitors take remaining space */
/* Make the active monitor take remaining space */
#serialMonitor.active,
#messagesMonitor.active {
  display: flex !important;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Hide inactive monitors */
#serialMonitor:not(.active),
#messagesMonitor:not(.active) {
  display: none !important;
}

#sideSerialControls #side_board_name {
  width: 70px;
  min-width: 0;
  max-width: 100px;
  padding: 0 8px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  height: 28px;
  border-radius: 6px !important;
  font-size: 1em;
  font-weight: bold;
  color: #990099 !important;
  background: #fff !important;
  border: 2px solid #990099 !important;
  box-sizing: border-box;
  outline: none;
  margin: 0;
  box-shadow: none;
  transition: background 0.2s, color 0.2s, border 0.2s !important;
  text-align: center;
}

/* Remove hover/focus for board name */
#sideSerialControls #side_board_name:focus,
#sideSerialControls #side_board_name:hover {
  background: #fff !important;
  color: #990099 !important;
  border: 2px solid #990099 !important;
}

#btn_boards_modal {
  height: 28px;
  min-width: 70px;
  padding: 0 16px;
  border-radius: 6px !important;
  font-size: 1em;
  font-weight: 600 !important;
  color: #990099 !important;
  background: #fff !important;
  border: 2px solid #990099 !important;
  box-sizing: border-box;
  outline: none;
  margin: 0;
  box-shadow: none;
  transition: background 0.2s, color 0.2s, border 0.2s !important;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#btn_boards_modal:hover,
#btn_boards_modal:focus {
  background: #990099 !important;
  color: #fff !important;
  border: .5px solid #ffffff !important;
}

nav a:hover {
  background: #990099 !important;
  color: #fff !important;
}

#boardsModal .modal-dialog {
  width: 900px;
  max-width: 98vw;
  min-width: 600px;
  max-height: 98vh;
  margin: 30px auto;
}

#boardsModal .modal-content {
  display: flex;
  flex-direction: column;
  max-height: 98vh;
}

#boardsModal .modal-body {
  flex-grow: 1;
  overflow-y: auto;
}

@media (max-width: 1000px) {
  #boardsModal .modal-dialog {
    width: 98vw;
    min-width: 0;
    height: 90vh;
    margin: 10px auto;
  }

  #boardsModal .modal-content {
    min-height: 0;
    height: 100%;
    max-height: 90vh;
  }
}

nav a i[class*="caret"] {
  color: #fff !important;
  /* or any color you want */
}

#btn_left_bottom {
  position: fixed;
  left: 15px !important;
  bottom: 15px !important;
  background-color: #990099 !important;
  color: white !important;
  border: 1px solid #990099 !important;
  border-radius: 4px !important;
  padding: 5px 10px !important;
  font-size: 1em !important;
  height: 28px !important;
  width: 130px !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
  z-index: 10 !important;
  white-space: nowrap;
}

#btn_left_bottom:hover,
#btn_left_bottom:focus {
  background-color: #b300b3 !important;
  color: white !important;
  border: 1px solid #990099 !important;
}

.boards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 16px 0;
  justify-items: center;
}

.board-card {
  background: #f8faff;
  border: 2px solid #e0e6f0;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(153, 0, 153, 0.05);
  padding: 16px 8px 8px 8px;
  text-align: center;
  width: 160px;
  transition: border 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.board-card.selected,
.board-card:hover {
  border: 2px solid #4e7cff;
  box-shadow: 0 4px 16px rgba(78, 124, 255, 0.12);
}

.board-card img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 8px;
}

.board-label {
  font-size: 1.1em;
  color: #333;
  margin-top: 4px;
}

#side_serialport {
  width: auto !important;
  padding: 2px 10px !important;
  font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
}

/* Temporarily hide Remote and Run buttons (remove this rule to show them again) */
#side_btn_remote,
#side_btn_run {
  display: none !important;
}

#side_btn_upload,
#side_btn_run,
#side_btn_remote,
#btn_boards_modal {
  font-weight: 600 !important;
}

#sideSerialControls #side_btn_upload,
#sideSerialControls #side_btn_run,
#sideSerialControls #side_btn_remote,
#sideSerialControls #btn_boards_modal,
#sideSerialControls #side_serialport {
  font-weight: 600 !important;
}

/* Fix for Tutorials and About button hover/focus color */
#btn_menu_tutorials:hover,
#btn_menu_tutorials:focus,
#btn_menu_about:hover,
#btn_menu_about:focus {
  background: #b300b3 !important;
  color: #fff !important;
}

/* Tutorial Modal Styles */
#tutorialsModal .modal-dialog {
  width: 800px;
  max-width: 90vw;
}

#tutorialsModal .modal-content {
  border-radius: 8px;
}

#tutorialsModal .modal-header {
  background: linear-gradient(135deg, #990099, #b300b3);
  color: white;
  border-radius: 8px 8px 0 0;
}

#tutorialsModal .modal-header h4 {
  color: white;
  margin: 0;
}

#tutorialsModal .modal-header .fa-graduation-cap {
  margin-right: 10px;
  font-size: 1.2em;
}

#tutorialsModal .modal-body {
  padding: 20px;
}

#tutorialsModal h5 {
  color: #990099;
  font-weight: bold;
  margin-top: 20px;
  margin-bottom: 15px;
  border-bottom: 2px solid #f0f0f0;
  padding-bottom: 8px;
}

#tutorialsModal h5:first-child {
  margin-top: 0;
}

#tutorialsModal .list-group {
  margin-bottom: 25px;
}

#tutorialsModal .list-group-item {
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  margin-bottom: 8px;
  transition: all 0.2s ease;
}

#tutorialsModal .list-group-item:hover {
  border-color: #990099;
  background-color: #f8f5ff;
  transform: translateX(5px);
}


#tutorialsModal .tutorial-link {
  color: #333;
  text-decoration: none;
  display: block;
  padding: 8px 0;
  transition: color 0.2s ease;
}

#tutorialsModal .tutorial-link:hover {
  color: #990099;
  text-decoration: none;
}

#tutorialsModal .tutorial-link i {
  margin-right: 10px;
  width: 20px;
  text-align: center;
  color: #990099;
}

#tutorialsModal .modal-footer {
  border-top: 1px solid #e0e0e0;
  padding: 15px 20px;
}

#tutorialsModal .btn-primary {
  background-color: #990099;
  border-color: #990099;
}

#tutorialsModal .btn-primary:hover {
  background-color: #7c007e;
  border-color: #7c007e;
}

#tutorialsModal .btn-info {
  background-color: #5bc0de;
  border-color: #46b8da;
  color: white;
}

#tutorialsModal .btn-info:hover {
  background-color: #31b0d5;
  border-color: #269abc;
  color: white;
}

/* Responsive adjustments for tutorial modal */
@media (max-width: 768px) {
  #tutorialsModal .modal-dialog {
    width: 95vw;
    margin: 10px auto;
  }

  #tutorialsModal .modal-body {
    padding: 15px;
  }

  #tutorialsModal h5 {
    font-size: 1.1em;
  }

  #tutorialsModal .tutorial-link {
    font-size: 0.95em;
  }
}

/* Modern Config Modal Styles */

/* Modal Container */
#configModal .modal-dialog {
  width: 900px !important;
  max-width: 95vw;
}

#configModal .modal-content {
  border-radius: 12px;
  border: none;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

#configModal .modal-header {
  background: #f8f9fa;
  border-bottom: 1px solid #eee;
  padding: 15px 20px;
}

#configModal .modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #333;
}

#configModal .modal-body {
  padding: 20px;
  background: #fff;
  max-height: 70vh;
  overflow-y: auto;
}

/* Modal Tabs */
.config-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 20px;
  background: #f1f2f6;
  padding: 5px;
  border-radius: 8px;
}

.config-tab-btn {
  border: none;
  background: transparent;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 600;
  color: #666;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.config-tab-btn:hover {
  background: #e4e6eb;
  color: #333;
}

.config-tab-btn.active {
  background: #fff;
  color: #990099;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Tab Content Areas */
.config-tab-pane {
  display: none;
  animation: fadeIn 0.3s ease;
}

.config-tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Category Grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 15px;
}

/* Category Card */
.category-card {
  position: relative;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 15px 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}

.category-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  border-color: #990099;
}

.category-card.selected {
  background: #fdf5fd;
  border-color: #990099;
  box-shadow: 0 0 0 2px rgba(153, 0, 153, 0.1);
}

.category-card.selected::after {
  content: '✓';
  position: absolute;
  top: 5px;
  right: 5px;
  background: #990099;
  color: #fff;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s, box-shadow 0.2s;
}

.category-card:hover .card-icon {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25) !important;
}

.category-card.selected .card-icon {
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3) !important;
}

.card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #444;
  line-height: 1.3;
}

/* Hidden checkboxes */
.category-card input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* Toolbar */
.config-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  padding-bottom: 15px;
  border-bottom: 1px solid #eee;
}

.search-web {
  width: 250px;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 20px;
  outline: none;
  transition: all 0.2s;
}

.search-web:focus {
  border-color: #990099;
  box-shadow: 0 0 0 3px rgba(153, 0, 153, 0.1);
}

.card-desc {
  font-size: 0.8rem;
  color: #888;
  margin-top: 5px;
  line-height: 1.2;
}

.category-card:hover .card-desc {
  color: #666;
}

.category-card.selected .card-desc {
  color: #990099;
  opacity: 0.8;
}

/* === Basic / Advanced Mode Toggle (kids-friendly, clear active state) === */
#mode-toggle {
  display: inline-flex !important;
  align-items: center !important;
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  padding: 0 !important;
  gap: 6px !important;
  flex-shrink: 0 !important;
  height: 28px !important;
  box-sizing: border-box !important;
}

/* Mode: Basic / Advanced — dropdown (matches other header pills) */
.mode-dropdown-wrap {
  flex-shrink: 0 !important;
}
.mode-dropdown-toggle {
  background: #fff !important;
  border: 2px solid #8e24aa !important;
  border-radius: 12px !important;
  color: #8e24aa !important;
  cursor: pointer !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  letter-spacing: 0.4px !important;
  padding: 0 12px 0 14px !important;
  line-height: 1 !important;
  height: 28px !important;
  min-width: 100px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 8px !important;
  box-sizing: border-box !important;
  text-transform: uppercase !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12) !important;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease !important;
}
.mode-dropdown-toggle:hover,
.mode-dropdown-toggle:focus {
  background: #8e24aa !important;
  color: #fff !important;
  border-color: #8e24aa !important;
}
.mode-dropdown-toggle .caret {
  border-top-color: currentColor !important;
  margin-top: 0 !important;
}
.mode-dropdown-menu {
  min-width: 140px !important;
  margin-top: 6px !important;
  border-radius: 10px !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18) !important;
  border: 1px solid rgba(142, 36, 170, 0.2) !important;
  padding: 4px 0 !important;
  font-family: inherit !important;
}
.mode-dropdown-menu > li > a {
  padding: 10px 16px !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  color: #333 !important;
}
.mode-dropdown-menu > li.active > a,
.mode-dropdown-menu > li.active > a:hover,
.mode-dropdown-menu > li.active > a:focus {
  background: #f3e5f5 !important;
  color: #6a1b9a !important;
}
.mode-dropdown-menu > li:not(.active) > a:hover {
  background: #fafafa !important;
  color: #6a1b9a !important;
}
.mode-dropdown-toggle:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.9) !important;
  outline-offset: 2px !important;
}

/* === Kids-friendly header bar buttons (pill shape, shadow, hover) === */
#sideSerialControls select,
#sideSerialControls button:not(.mode-dropdown-toggle) {
  border-radius: 12px !important;
  padding: 2px 14px !important;
  min-height: 28px !important;
  height: 28px !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12) !important;
  transition: background 0.2s ease, color 0.2s ease, border 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease !important;
}

#sideSerialControls button:hover:not(.mode-dropdown-toggle):not(#btn_ai_assistant),
#sideSerialControls select:hover,
#sideSerialControls select:focus {
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18) !important;
  transform: scale(1.03) !important;
}

#sideSerialControls select {
  color: #8e24aa !important;
  border: 2px solid #8e24aa !important;
  background: #fff !important;
}

#sideSerialControls button:not(.mode-dropdown-toggle):not(#btn_ai_assistant) {
  color: #8e24aa !important;
  border: 2px solid #8e24aa !important;
  background: #fff !important;
}

#sideSerialControls button:hover:not(.mode-dropdown-toggle):not(#btn_ai_assistant),
#sideSerialControls select:hover,
#sideSerialControls select:focus {
  background: #8e24aa !important;
  color: #fff !important;
  border-color: #8e24aa !important;
}

#sideSerialControls button:focus-visible:not(.mode-dropdown-toggle):not(#btn_ai_assistant),
#sideSerialControls select:focus {
  outline: 2px solid #8e24aa !important;
  outline-offset: 2px !important;
}

/* AI Assistant button – distinct gradient so it stands out */
#btn_ai_assistant {
  background: linear-gradient(135deg, #ab47bc 0%, #7b1fa2 100%) !important;
  color: #fff !important;
  border: none !important;
  box-shadow: 0 2px 8px rgba(123, 31, 162, 0.35) !important;
}

#btn_ai_assistant:hover {
  background: linear-gradient(135deg, #ba68c8 0%, #8e24aa 100%) !important;
  color: #fff !important;
  box-shadow: 0 4px 12px rgba(123, 31, 162, 0.45) !important;
  transform: scale(1.03) !important;
}

#btn_ai_assistant:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.9) !important;
  outline-offset: 2px !important;
}

/* === Global Modern Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #d1d1d1;
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
  background: #990099;
  border: 0;
}