/* ================================
   CSS VARIABLES & ROOT STYLES
   ================================ */
:root {
  /* Primary Color Palette - Teal Theme */
  --primary-color: #07aca1;
  --primary-hover: #26c6ba;
  --primary-light: #e6f9f8;
  --primary-dark: #056963;
  
  /* Secondary Colors - Complementary Blue */
  --secondary-color: #1565c0;
  --secondary-hover: #1976d2;
  --secondary-light: #e3f2fd;
  
  /* Accent Colors - Warm Coral for Contrast */
  --accent-color: #ea4335;
  --accent-hover: #f28b82;
  --accent-light: #fce8e6;
  --accent-dark: #d33b2c;
  
  /* Warning/Alert Colors */
  --warning-color: #fbbc04;
  --warning-hover: #fdd663;
  --warning-light: #fef7e0;
  
  /* Success Colors */
  --success-color: #34a853;
  --success-hover: #5bb974;
  --success-light: #e6f4ea;
  
  /* Neutral Colors - Refined Grays */
  --text-color: #202124;
  --text-secondary: #3c4043;
  --text-muted: #5f6368;
  --text-light: #80868b;
  
  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f1f3f4;
  --bg-hover: #f8f9fa;
  --bg-active: #e8eaed;
  
  /* Border Colors */
  --border-color: #dadce0;
  --border-hover: #bdc1c6;
  --border-focus: var(--primary-color);
  
  /* Surface Colors */
  --surface-bg: var(--bg-primary);
  --surface-elevated: var(--bg-primary);
  
  /* Layout & Effects */
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-sm: 4px;
  --box-shadow: 0 1px 3px rgba(60, 64, 67, 0.3);
  --box-shadow-hover: 0 2px 8px rgba(60, 64, 67, 0.15);
  --box-shadow-focus: 0 0 0 2px rgba(7, 172, 161, 0.2);
  --transition: all 0.2s ease;
  
  /* Typography */
  --bs-nav-link-font-size: 14px;
}

/* ================================
   BASE STYLES
   ================================ */
body {
  background: var(--bg-secondary);
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.container-fluid {
  position: relative;
}

#logo {
  transition: opacity 0.2s ease;
}

/* ================================
   SCROLLBAR STYLES
   ================================ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: var(--border-radius-sm);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--border-radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* ================================
   ANIMATIONS & KEYFRAMES
   ================================ */
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* ================================
   NAVIGATION STYLES
   ================================ */
.navbar-custom {
  background: var(--surface-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 16px;
  box-shadow: var(--box-shadow);
}

.navbar-theme {
  background: var(--surface-bg) !important;
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow);
  padding: 1rem 1.5rem;
  position: relative;
  z-index: 10;
}

.navbar-toggler {
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: var(--box-shadow-focus);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2860,64,67,0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  filter: none;
}

.navbar-collapse {
  background: var(--surface-bg);
  border-radius: var(--border-radius);
  margin-top: 0.5rem;
  padding: 1rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow);
}

.navbar-nav .nav-link {
  padding: 8px 12px;
  color: var(--text-color);
  font-size: var(--bs-nav-link-font-size);
  font-weight: 500;
  transition: var(--transition);
  border-radius: var(--border-radius);
}

.navbar-nav .nav-link:hover {
  background-color: var(--bg-hover);
  color: var(--text-color);
}

.navbar-nav .nav-link.active {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.nav-link {
  color: var(--text-color) !important;
  transition: var(--transition);
  border-radius: 0;
}

.nav-link:hover,
.nav-link:focus,
.nav-link.active,
.nav-link.show {
  color: var(--primary-color) !important;
  background-color: var(--bg-hover);
}

.featureButtons {
  display: inline-block;
  text-align: center;
  width: 45px;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.featureButtons:hover {
  cursor: pointer;
  background-color: var(--bg-hover);
}

.preview-on,
.content-demo {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

/* ================================
   DOCUMENT TITLE STYLES
   ================================ */
.doc-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: 20px;
}

.doc-icon {
  color: var(--primary-color);
  font-size: 20px;
}

.doc-name {
  font-size: 18px;
  color: var(--text-color);
  font-weight: 400;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  outline: none;
  min-width: 225px;
  padding: 6px 12px;
  border-radius: var(--border-radius);
  cursor: text;
  height: 31px;
  transition: var(--transition);
}

.doc-name:hover {
  border-color: var(--border-hover);
}

.doc-name:focus {
  background-color: var(--surface-bg);
  border-color: var(--border-focus);
  box-shadow: var(--box-shadow-focus);
}

.doc-name::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

/* ================================
   MENU BAR STYLES
   ================================ */
.menu-bar {
  margin-right: auto;
  z-index: 1001;
}

.menu-bar-container {
  background: var(--surface-bg);
  box-shadow: var(--box-shadow);
  z-index: 1001;
  border: 1px solid var(--border-color);
}

.menu-dropdown {
  position: relative;
}

.menu-dropdown-content {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow-hover);
  border-radius: var(--border-radius);
}

.menu-dropdown-content.show {
  display: block;
}

.menu-dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 14px;
  color: var(--text-color);
}

.menu-dropdown-item:hover {
  background-color: var(--bg-hover);
}

.menu-dropdown-item.disabled {
  color: var(--text-muted);
  cursor: not-allowed;
}

.menu-dropdown-item.disabled:hover {
  background-color: transparent;
}

.menu-dropdown-separator {
  height: 1px;
  background-color: var(--border-color);
  margin: 8px 0;
}

.menu-dropdown-icon {
  width: 20px;
  text-align: center;
  color: var(--text-muted);
}

.menu-dropdown-shortcut {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
}

.menu-item.active {
  background-color: var(--bg-hover);
}

/* ================================
   DROPDOWN STYLES
   ================================ */
.dropdown-menu {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow-hover);
  transition: var(--transition);
  border-radius: var(--border-radius);
}

.dropdown-item {
  color: var(--text-color);
  font-weight: 400;
  font-size: var(--bs-nav-link-font-size);
  padding: 8px 16px;
  transition: var(--transition);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: var(--bg-hover);
  color: var(--text-color);
}

.dropdown-item.active {
  background: var(--primary-light);
  color: var(--primary-color);
}

.dropdown-item i {
  margin-right: 0.5rem;
}

.dropdown-divider {
  border-top: 1px solid var(--border-color);
}

/* ================================
   BUTTON STYLES
   ================================ */
.btn {
  min-width: 34px;
  /* border-radius: var(--border-radius); */
  font-weight: 500;
  transition: var(--transition);
}   

.btn-viewport,
.btn-content,
.btn-dark {
  background: var(--surface-bg);
  border: 1px solid var(--border-color) !important;
  color: var(--text-color);
  transition: var(--transition);
  box-shadow: none;
}

.btn-viewport:hover {
  background-color: var(--bg-hover) !important;
  border-color: var(--primary-color) !important;
  color: var(--primary-color);
}

.btn-viewport.active,
.btn.active {
  background-color: var(--primary-light) !important;
  border-color: var(--primary-color) !important;
  color: var(--primary-color);
}

.btn-content:hover,
.btn-content:active {
  background-color: var(--bg-hover) !important;
  border-color: var(--secondary-color) !important;
  color: var(--secondary-color);
}

.btn-content.active {
  background-color: var(--secondary-light) !important;
  border-color: var(--secondary-color) !important;
  color: var(--secondary-color);
}

.btn-dark:hover,
.btn-dark:focus,
.btn-dark:active {
  background: var(--bg-hover) !important;
  border-color: var(--primary-color) !important;
  color: var(--primary-color) !important;
}

.btn-outline-danger {
  background: var(--surface-bg) !important;
  border: 1px solid var(--accent-color) !important;
  color: var(--accent-color) !important;
  transition: var(--transition);
}

.btn-outline-danger:hover,
.btn-outline-danger:focus,
.btn-outline-danger:active {
  background: var(--accent-color) !important;
  border-color: var(--accent-color) !important;
  color: white !important;
}

.btn-outline-warning {
  background: var(--surface-bg) !important;
  border: 1px solid var(--warning-color) !important;
  color: var(--warning-color) !important;
  transition: var(--transition) !important;
}

.btn-outline-warning:hover,
.btn-outline-warning:focus,
.btn-outline-warning:active {
  background: var(--warning-color) !important;
  border-color: var(--warning-color) !important;
  color: var(--text-color) !important;
}

.btn-group .btn {
  border-right: 1px solid var(--border-color);
}

.btn-group .btn:last-child {
  border-right: none;
}

/* ================================
   FORM CONTROLS
   ================================ */
.form-control,
.form-select {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
  background: var(--surface-bg);
  border-color: var(--border-focus);
  box-shadow: var(--box-shadow-focus);
  color: var(--text-color);
}

.form-label {
  color: var(--text-color);
  font-weight: 500;
}

.notes-box .form-label {
  font-size: 12px;
}

/* ================================
   MAIN LAYOUT PANELS
   ================================ */
#componentListContainer,
#settingsPanel {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  box-shadow: var(--box-shadow);
  height: calc(99vh - 90px);
  overflow-y: auto;
  transition: var(--transition);
  position: relative;
  z-index: 5;
  border-top: none;
  border-bottom: none;
}

#componentListContainer h5,
#settingsPanel h5,
#previewWindow h5 {
  color: var(--text-color);
  margin-bottom: 1.5rem;
  font-weight: 500;
  font-size: 1.25rem;
}

#viewportContainer {
  background: #f3f3f3;
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  height: calc(99vh - 90px);
  position: relative;
  z-index: 5;
  border-top: none;
  border-bottom: none;
}

#previewFrame {
  background-color: var(--surface-bg);
  max-width: 100%;
  display: block;
  height: 100%;
  border: none;
}

.preview-container h5 {
  color: var(--text-color);
  font-weight: 500;
}

/* ================================
   COLLAPSED STATES
   ================================ */
.collapsed {
  width: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
  transition: var(--transition);
}

#componentListContainer.collapsed,
#settingsPanel.collapsed {
  display: none;
}

/* ================================
   MODAL STYLES
   ================================ */
.modal-content {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  color: var(--text-color);
  box-shadow: var(--box-shadow-hover);
}

.modal-header {
  border-bottom: 1px solid var(--border-color);
}

.modal-footer {
  border-top: 1px solid var(--border-color);
}

.modal-title {
  color: var(--text-color);
  font-weight: 500;
}

.btn-close {
  filter: none;
}

/* ================================
   LIBRARY & COMPONENT ITEMS
   ================================ */
.library-item {
  background: #f8f9fa;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  border-radius: var(--border-radius);
}

.library-item:hover {
  border-color: var(--primary-color);
  background: #e6e6e6;
  box-shadow: var(--box-shadow-hover);
}

.fa-grip-vertical {
  cursor: grab;
}

/* ================================
   LOADER
   ================================ */
#loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-secondary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner {
  border: 4px solid var(--bg-tertiary);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
}

/* ================================
   THEME SWITCH
   ================================ */
.theme-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 31px;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  background: var(--surface-bg);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5px;
  box-sizing: border-box;
}

.slider .icon {
  font-size: 18px;
  user-select: none;
}

.slider .sun {
  color: var(--warning-color);
}

.slider .moon {
  color: var(--text-muted);
}

.theme-switch input:checked + .slider {
  background-color: var(--text-color);
  border-color: var(--text-muted);
}

.theme-switch input:checked + .slider .sun {
  color: var(--text-muted);
}

.theme-switch input:checked + .slider .moon {
  color: var(--primary-color);
}

.theme-switch input + .slider::before {
  content: "";
  position: absolute;
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background-color: var(--primary-color);
  border-radius: 50%;
  transition: transform 0.3s;
}

.theme-switch input:checked + .slider::before {
  transform: translateX(30px);
}

/* ================================
   RESPONSIVE STYLES
   ================================ */
@media (max-width: 768px) {
  #componentListContainer,
  #settingsPanel {
    height: auto;
    margin-bottom: 1rem;
  }

  #viewportContainer {
    height: 500px;
  }

  .container-fluid {
    padding: 1rem;
  }
}

@media (max-width: 576px) {
  .doc-title {
    flex-wrap: wrap;
    gap: 4px;
  }

  .doc-name {
    min-width: 150px;
  }
}

@media (min-width: 992px) {
  .navbar-collapse {
    background: none;
    border: none;
    margin-top: 0;
    padding: 0;
    box-shadow: none;
  }
}