/* Modern Web Design System for Clock Designer - Plotter v2 / Flowchart Style */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Outfit:wght@300;400;500;600;700&family=Vazirmatn:wght@300;400;500;700&family=Amiri:wght@400;700&display=swap');

:root {
  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Transitions */
  --transition-fast: 0.12s ease;
  --transition-normal: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Light Theme Variables */
  --bg-color: #f6f6f7;
  --panel-bg: #ffffff;
  --panel-border: #e2e2e5;
  --text-primary: #1c1c1e;
  --text-secondary: #6e6e73;
  --text-muted: #aeaeb2;
  --accent-color: #000000;
  --accent-hover: #262626;
  --accent-bg-subtle: #f2f2f7;
  --grid-dot: #e2e2e5;
  --input-focus-ring: rgba(0, 0, 0, 0.05);
  
  /* Checkerboard for Transparent face preview */
  --checkerboard-color: #efeff4;
  --checkerboard-bg: #ffffff;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
  /* Dark Theme Variables */
  --bg-color: #0d0d0f;
  --panel-bg: #1a1a1e;
  --panel-border: #2c2c2e;
  --text-primary: #f5f5f7;
  --text-secondary: #8e8e93;
  --text-muted: #48484a;
  --accent-color: #ffffff;
  --accent-hover: #d1d1d6;
  --accent-bg-subtle: #2c2c2e;
  --grid-dot: #222225;
  --input-focus-ring: rgba(255, 255, 255, 0.05);
  
  /* Checkerboard for Transparent face preview */
  --checkerboard-color: #242426;
  --checkerboard-bg: #151518;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  display: flex;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

.app-container {
  display: flex;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

/* Left Toolbar Narrow Dock */
.left-toolbar {
  width: 56px;
  height: 100%;
  background-color: var(--panel-bg);
  border-right: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 0;
  gap: 12px;
  z-index: 10;
  flex-shrink: 0;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.toolbar-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  gap: 8px;
}

.toolbar-divider {
  width: 24px;
  height: 1px;
  background-color: var(--panel-border);
  margin: 4px 0;
  flex-shrink: 0;
  transition: background-color var(--transition-normal);
}

.logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--accent-color);
}

.logo-icon svg {
  width: 22px;
  height: 22px;
}

.tool-btn {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all var(--transition-fast);
  padding: 0;
  position: relative;
}

.tool-btn svg {
  width: 18px;
  height: 18px;
}

.tool-btn:hover:not(:disabled) {
  background-color: var(--accent-bg-subtle);
  color: var(--text-primary);
}

.tool-btn:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

.zoom-display {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  color: var(--text-secondary);
  user-select: none;
  text-align: center;
  display: inline-block;
  margin: 2px 0;
}

/* Tooltips */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: auto;
  left: 125%;
  top: 50%;
  transform: translateY(-50%) translateX(-4px);
  background-color: var(--text-primary);
  color: var(--panel-bg);
  font-size: 10px;
  font-family: var(--font-sans);
  font-weight: 500;
  padding: 5px 9px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-fast);
  z-index: 100;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--panel-border);
}

[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* Main Canvas Viewport */
.canvas-container {
  flex: 1;
  height: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.canvas-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-color);
  background-image: radial-gradient(var(--grid-dot) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
  z-index: 1;
  transition: background-color var(--transition-normal);
}

.canvas-viewport {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: grab;
  user-select: none;
}

.canvas-viewport:active {
  cursor: grabbing;
}

/* Floating Clock Preview Container */
#preview-container {
  position: absolute;
  transform-origin: center center;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  transition: box-shadow var(--transition-normal);
  /* Ensure pointer events work for the panning */
  will-change: transform;
}

/* Dynamic Checkerboard Pattern */
#preview-container.show-checkerboard {
  background-image: linear-gradient(45deg, var(--checkerboard-color) 25%, transparent 25%),
                    linear-gradient(-45deg, var(--checkerboard-color) 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, var(--checkerboard-color) 75%),
                    linear-gradient(-45deg, transparent 75%, var(--checkerboard-color) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0px;
  background-color: var(--checkerboard-bg);
}

#preview-container svg {
  display: block;
  width: 520px;
  height: 520px;
}

/* ── Floating Navigation Pill ── */
.nav-pill {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 30px;
  padding: 5px 8px 5px 12px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  opacity: 0.7;
  pointer-events: auto;
  backdrop-filter: blur(8px);
}

.nav-pill:hover {
  opacity: 1;
  box-shadow: var(--shadow-lg);
}

.nav-pill-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  user-select: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-pill-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 20px;
  border: none;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-pill-btn svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

.nav-pill-btn.back-hub {
  background-color: var(--accent-bg-subtle);
  color: var(--text-primary);
}

.nav-pill-btn.back-hub:hover {
  background-color: var(--text-primary);
  color: var(--panel-bg);
}

.nav-pill-btn.open-standalone {
  background-color: var(--accent-color);
  color: var(--panel-bg);
}

.nav-pill-btn.open-standalone:hover {
  background-color: var(--accent-hover);
}

/* Floating HUD status bar */
.hud-status-bar {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(var(--panel-bg), 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  padding: 6px 14px;
  border-radius: 30px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-md);
  z-index: 5;
  transition: all var(--transition-normal);
}

.hud-item {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--text-secondary);
}

.hud-divider {
  color: var(--panel-border);
  font-size: 10px;
}

/* Right Sidebar Inspector */
.right-sidebar {
  width: 320px;
  height: 100%;
  background-color: var(--panel-bg);
  border-left: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 10;
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

/* Sidebar Tab Headers */
.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--panel-border);
  background-color: var(--panel-bg);
  flex-shrink: 0;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.tab-btn {
  flex: 1;
  padding: 14px 2px;
  font-size: 10px;
  font-weight: 600;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  transition: all var(--transition-fast);
}

.tab-btn svg {
  width: 14px;
  height: 14px;
  stroke-width: 2px;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--text-primary);
}

/* Tab Contents */
.sidebar-tab-content {
  display: none;
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.sidebar-tab-content::-webkit-scrollbar {
  width: 5px;
}
.sidebar-tab-content::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar-tab-content::-webkit-scrollbar-thumb {
  background: var(--panel-border);
  border-radius: 3px;
}

.sidebar-tab-content.active {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Section Title */
.input-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 12px;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 6px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.input-field-wrapper {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-field-wrapper label {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
}

.text-input {
  width: 100%;
  padding: 9px 12px;
  font-size: 13px;
  font-family: var(--font-sans);
  background-color: var(--accent-bg-subtle);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.text-input:focus {
  border-color: var(--text-primary);
  background-color: var(--panel-bg);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.text-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
  font-size: 11px;
}

select.text-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='%236e6e73' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px;
  padding-right: 32px;
}

/* Checkbox and Toggles */
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 2px 0;
}

.checkbox-label {
  font-size: 12px;
  color: var(--text-primary);
  font-weight: 500;
  user-select: none;
}

/* Custom iOS Slider Switch */
.switch-container {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 20px;
  flex-shrink: 0;
}

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

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--panel-border);
  transition: var(--transition-fast);
  border-radius: 20px;
}

.switch-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 2px;
  bottom: 2px;
  background-color: #ffffff;
  transition: var(--transition-fast);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

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

input:checked + .switch-slider:before {
  transform: translateX(14px);
}

/* Range Inputs */
.range-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.range-labels span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--panel-border);
  outline: none;
  margin: 8px 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--text-primary);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

/* Color Picker Container */
.color-picker-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.color-picker-container {
  display: flex;
  gap: 8px;
  position: relative;
  align-items: center;
}

.color-picker-container input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  background: none;
  flex-shrink: 0;
}

.color-picker-container input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-picker-container input[type="color"]::-webkit-color-swatch {
  border: 1px solid var(--panel-border);
  border-radius: 6px;
}

/* Buttons */
.action-btn {
  width: 100%;
  padding: 10px 14px;
  background-color: var(--accent-color);
  color: var(--panel-bg);
  border: 1px solid var(--accent-color);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all var(--transition-fast);
}

.action-btn:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

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

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

/* Presets List */
.presets-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 8px;
  background-color: var(--accent-bg-subtle);
}

.presets-empty-msg {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding: 12px;
  font-style: italic;
}

.preset-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px;
  background-color: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.preset-item:hover {
  border-color: var(--text-primary);
}

.preset-name {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-primary);
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  max-width: 140px;
}

.preset-actions {
  display: flex;
  gap: 6px;
}

.preset-btn {
  padding: 4px 8px;
  font-size: 10px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.preset-btn.load {
  background-color: var(--accent-bg-subtle);
  color: var(--text-primary);
}

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

.preset-btn.delete {
  background-color: transparent;
  color: #ff3b30;
}

.preset-btn.delete:hover {
  background-color: #ffe5e5;
}

.config-backup-row {
  display: flex;
  gap: 8px;
}

.config-backup-row button {
  flex: 1;
}

/* Toast Notification styling */
.app-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: var(--text-primary);
  color: var(--panel-bg);
  font-size: 12px;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: 30px;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.app-toast.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Mobile Toggles & Overlay */
.mobile-toggle-btn {
  display: none;
  position: absolute;
  top: 16px;
  z-index: 99;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--panel-bg);
  border: 1px solid var(--panel-border);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.mobile-toggle-btn:hover {
  background-color: var(--accent-bg-subtle);
}

.mobile-toggle-btn.left-toggle {
  left: 16px;
}

.mobile-toggle-btn.right-toggle {
  right: 16px;
}

.sidebar-overlay {
  display: none;
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 90;
  transition: opacity var(--transition-normal);
}

@media (max-width: 768px) {
  .mobile-toggle-btn {
    display: flex;
  }
  
  .left-toolbar {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    z-index: 100;
    box-shadow: none;
  }
  
  .left-toolbar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  
  .right-sidebar {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 100;
    box-shadow: none;
  }
  
  .right-sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  
  .hud-status-bar {
    bottom: 12px;
    padding: 4px 10px;
    font-size: 8px;
    width: max-content;
    max-width: 90%;
    justify-content: center;
  }
  
  .hud-item {
    font-size: 9px;
  }

  /* Nav pill goes top-right on mobile to avoid toggle button overlap */
  .nav-pill {
    top: 10px;
    left: auto;
    right: 10px;
    transform: none;
    padding: 4px 6px 4px 8px;
  }

  .nav-pill-label {
    display: none;
  }

  .nav-pill-btn {
    font-size: 10px;
    padding: 4px 8px;
  }
}