/* Material Design 3 Tokens & Convergent Styles */

:root {
  /* MD3 Baseline Purple/Violet Palette */
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #21005D;
  
  --md-sys-color-secondary: #625B71;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #E8DEF8;
  --md-sys-color-on-secondary-container: #1D192B;
  
  --md-sys-color-tertiary: #7D5260;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #FFD8E4;
  --md-sys-color-on-tertiary-container: #31111D;
  
  --md-sys-color-error: #B3261E;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #F9DEDC;
  --md-sys-color-on-error-container: #410E0B;
  
  /* Dark Theme Surfaces */
  --md-sys-color-surface: #141218;
  --md-sys-color-on-surface: #E6E1E5;
  --md-sys-color-surface-variant: #49454F;
  --md-sys-color-on-surface-variant: #CAC4D0;
  
  /* Surface Containers (Elevations) */
  --md-sys-color-surface-container-lowest: #0F0D13;
  --md-sys-color-surface-container-low: #1D1B20;
  --md-sys-color-surface-container: #211F26;
  --md-sys-color-surface-container-high: #2B2930;
  --md-sys-color-surface-container-highest: #36343B;
  
  --md-sys-color-outline: #938F99;
  --md-sys-color-outline-variant: #444746;

  /* Typography */
  --md-sys-font: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --md-sys-font-mono: 'Roboto Mono', 'Fira Code', Menlo, Monaco, Consolas, monospace;

  /* Elevation Shadows */
  --md-elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
  --md-elevation-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
  --md-elevation-3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.30);

  /* Shape Tokens */
  --md-shape-corner-xs: 4px;
  --md-shape-corner-sm: 8px;
  --md-shape-corner-md: 12px;
  --md-shape-corner-lg: 16px;
  --md-shape-corner-xl: 28px;
  --md-shape-corner-full: 9999px;
}

/* Light Theme Variables */
@media (prefers-color-scheme: light) {
  :root {
    --md-sys-color-surface: #FEF7FF;
    --md-sys-color-on-surface: #1D1B20;
    --md-sys-color-surface-variant: #E7E0EC;
    --md-sys-color-on-surface-variant: #49454F;

    --md-sys-color-surface-container-lowest: #FFFFFF;
    --md-sys-color-surface-container-low: #F7F2FA;
    --md-sys-color-surface-container: #F3EDF7;
    --md-sys-color-surface-container-high: #ECE6F0;
    --md-sys-color-surface-container-highest: #E6E0E9;

    --md-sys-color-outline: #79747E;
    --md-sys-color-outline-variant: #CAC4D0;
  }
}

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

body {
  font-family: var(--md-sys-font);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Classes */
.md-display-lg { font-size: 3.5rem; font-weight: 400; line-height: 4rem; letter-spacing: -0.25px; }
.md-headline-lg { font-size: 2rem; font-weight: 400; line-height: 2.5rem; }
.md-title-lg { font-size: 1.375rem; font-weight: 500; line-height: 1.75rem; }
.md-title-md { font-size: 1rem; font-weight: 500; line-height: 1.5rem; }
.md-body-lg { font-size: 1rem; font-weight: 400; line-height: 1.5rem; }
.md-body-md { font-size: 0.875rem; font-weight: 400; line-height: 1.25rem; }
.md-body-sm { font-size: 0.75rem; font-weight: 400; line-height: 1rem; }
.md-label-lg { font-size: 0.875rem; font-weight: 500; line-height: 1.25rem; }
.md-label-sm { font-size: 0.6875rem; font-weight: 500; line-height: 1rem; }

/* Material Card Components */
.md-card {
  background-color: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-shape-corner-lg);
  padding: 1.5rem;
  border: 1px solid var(--md-sys-color-outline-variant);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.md-card:hover {
  box-shadow: var(--md-elevation-1);
}

.md-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

/* Material Button Components */
.md-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--md-sys-font);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.625rem 1.5rem;
  border-radius: var(--md-shape-corner-full);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, box-shadow 0.2s, transform 0.1s;
  text-decoration: none;
}

.md-btn:active {
  transform: scale(0.98);
}

.md-btn-primary {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

.md-btn-primary:hover {
  background-color: var(--md-sys-color-on-primary-container);
  box-shadow: var(--md-elevation-1);
}

.md-btn-secondary {
  background-color: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline-variant);
}

.md-btn-secondary:hover {
  background-color: var(--md-sys-color-surface-container-highest);
}

.md-btn-tonal {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.md-btn-tonal:hover {
  box-shadow: var(--md-elevation-1);
}

.md-btn-danger {
  background-color: var(--md-sys-color-error);
  color: var(--md-sys-color-on-error);
}

.md-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Status Chips */
.md-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--md-shape-corner-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.md-chip-connected {
  background-color: #2E7D32;
  color: #E8F5E9;
}

.md-chip-disconnected {
  background-color: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-outline);
}

.md-chip-warning {
  background-color: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
}

/* Material Range Slider Controls */
.md-slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1rem;
}

.md-slider-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
}

.md-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--md-sys-color-surface-container-highest);
  outline: none;
}

.md-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--md-sys-color-primary);
  cursor: pointer;
  box-shadow: var(--md-elevation-1);
}

/* Material Log / Console Window */
.md-console {
  background-color: var(--md-sys-color-surface-container-lowest);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-shape-corner-md);
  font-family: var(--md-sys-font-mono);
  font-size: 0.8125rem;
  color: #A5D6A7;
  padding: 1rem;
  height: 100%;
  min-height: 250px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Material 3 Linear Progress Bar */
.md-progress-track {
  width: 100%;
  height: 8px;
  background-color: var(--md-sys-color-surface-container-highest);
  border-radius: var(--md-shape-corner-full);
  overflow: hidden;
  position: relative;
  margin: 1rem 0 0.5rem 0;
}

.md-progress-indicator {
  height: 100%;
  width: 0%;
  background-color: var(--md-sys-color-primary);
  border-radius: var(--md-shape-corner-full);
  transition: width 0.15s ease-out;
}