:root {
  /* Colors */
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);
  --color-select-caret: rgba(19, 52, 59, 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: rgba(31, 33, 33, 1);
    --color-surface: rgba(38, 40, 40, 1);
    --color-text: rgba(245, 245, 245, 1);
    --color-text-secondary: rgba(167, 169, 169, 0.7);
    --color-primary: rgba(50, 184, 198, 1);
    --color-primary-hover: rgba(45, 166, 178, 1);
    --color-primary-active: rgba(41, 150, 161, 1);
    --color-secondary: rgba(119, 124, 124, 0.15);
    --color-secondary-hover: rgba(119, 124, 124, 0.25);
    --color-secondary-active: rgba(119, 124, 124, 0.3);
    --color-border: rgba(119, 124, 124, 0.3);
    --color-error: rgba(255, 84, 89, 1);
    --color-success: rgba(50, 184, 198, 1);
    --color-warning: rgba(230, 129, 97, 1);
    --color-info: rgba(167, 169, 169, 1);
    --color-focus-ring: rgba(50, 184, 198, 0.4);
    --color-btn-primary-text: rgba(19, 52, 59, 1);
    --color-card-border: rgba(119, 124, 124, 0.2);
    --color-card-border-inner: rgba(119, 124, 124, 0.15);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
      inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(119, 124, 124, 0.2);
    --color-border-secondary: rgba(119, 124, 124, 0.2);
    --color-select-caret: rgba(245, 245, 245, 0.8);

    /* Common style patterns - updated for dark mode */
    --focus-ring: 0 0 0 3px var(--color-focus-ring);
    --focus-outline: 2px solid var(--color-primary);
    --status-bg-opacity: 0.15;
    --status-border-opacity: 0.25;
    --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

    /* RGB versions for dark mode */
    --color-success-rgb: 50, 184, 198;
    --color-error-rgb: 255, 84, 89;
    --color-warning-rgb: 230, 129, 97;
    --color-info-rgb: 167, 169, 169;
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  --color-background: rgba(31, 33, 33, 1);
  --color-surface: rgba(38, 40, 40, 1);
  --color-text: rgba(245, 245, 245, 1);
  --color-text-secondary: rgba(167, 169, 169, 0.7);
  --color-primary: rgba(50, 184, 198, 1);
  --color-primary-hover: rgba(45, 166, 178, 1);
  --color-primary-active: rgba(41, 150, 161, 1);
  --color-secondary: rgba(119, 124, 124, 0.15);
  --color-secondary-hover: rgba(119, 124, 124, 0.25);
  --color-secondary-active: rgba(119, 124, 124, 0.3);
  --color-border: rgba(119, 124, 124, 0.3);
  --color-error: rgba(255, 84, 89, 1);
  --color-success: rgba(50, 184, 198, 1);
  --color-warning: rgba(230, 129, 97, 1);
  --color-info: rgba(167, 169, 169, 1);
  --color-focus-ring: rgba(50, 184, 198, 0.4);
  --color-btn-primary-text: rgba(19, 52, 59, 1);
  --color-card-border: rgba(119, 124, 124, 0.15);
  --color-card-border-inner: rgba(119, 124, 124, 0.15);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  --color-border-secondary: rgba(119, 124, 124, 0.2);
  --color-select-caret: rgba(245, 245, 245, 0.8);

  /* Common style patterns - updated for dark mode */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for dark mode */
  --color-success-rgb: 50, 184, 198;
  --color-error-rgb: 255, 84, 89;
  --color-warning-rgb: 230, 129, 97;
  --color-info-rgb: 167, 169, 169;
}

[data-color-scheme="light"] {
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-md);
}

p {
  margin: 0 0 var(--space-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

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

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

.btn--primary:active {
  background: var(--color-primary-active);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-secondary-hover);
}

.btn--secondary:active {
  background: var(--color-secondary-active);
}

.btn--accent {
  background: rgba(139, 92, 246, 0.2);
  color: #a78bfa;
  border-color: rgba(139, 92, 246, 0.3);
}

.btn--accent:hover {
  background: rgba(139, 92, 246, 0.3);
  border-color: rgba(139, 92, 246, 0.5);
}

.btn--accent:active {
  background: rgba(139, 92, 246, 0.15);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-secondary);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

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

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators - simplified with CSS variables */
.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(
    var(--color-success-rgb, 33, 128, 141),
    var(--status-bg-opacity)
  );
  color: var(--color-success);
  border: 1px solid
    rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(
    var(--color-error-rgb, 192, 21, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-error);
  border: 1px solid
    rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(
    var(--color-warning-rgb, 168, 75, 47),
    var(--status-bg-opacity)
  );
  color: var(--color-warning);
  border: 1px solid
    rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(
    var(--color-info-rgb, 98, 108, 113),
    var(--status-bg-opacity)
  );
  color: var(--color-info);
  border: 1px solid
    rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-center {
  justify-content: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-4 {
  gap: var(--space-4);
}
.gap-8 {
  gap: var(--space-8);
}
.gap-16 {
  gap: var(--space-16);
}

.m-0 {
  margin: 0;
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.mx-8 {
  margin-left: var(--space-8);
  margin-right: var(--space-8);
}
.my-8 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.p-0 {
  padding: 0;
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}
.px-8 {
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}
.py-16 {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}
.px-16 {
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

.block {
  display: block;
}
.hidden {
  display: none;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border-secondary);
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://www.perplexity.ai/fonts/FKGroteskNeue.woff2')
    format('woff2');
}

/* Custom styles for WiFi DensePose application */

/* Base layout and containers */
body {
  background-color: var(--color-background);
  color: var(--color-text);
  overflow-x: hidden;
}

.container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: var(--space-16);
}

.header {
  text-align: center;
  padding: var(--space-32) 0;
}

.subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  margin-top: var(--space-8);
}

/* Navigation tabs */
.nav-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-24);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-tabs::-webkit-scrollbar {
  display: none;
}

.nav-tab {
  padding: var(--space-12) var(--space-16);
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  white-space: nowrap;
  position: relative;
}

.nav-tab::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--duration-normal) var(--ease-standard);
}

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

.nav-tab.active {
  color: var(--color-primary);
}

.nav-tab.active::after {
  transform: scaleX(1);
}

/* Tab content */
.tab-content {
  display: none;
  animation: fadeIn var(--duration-normal) var(--ease-standard);
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Dashboard styles */
.hero-section {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1.6;
  margin: var(--space-16) auto var(--space-32);
  max-width: 800px;
}

.key-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-20);
  margin: var(--space-32) 0;
}

.benefit-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-card-border);
  transition: transform var(--duration-normal) var(--ease-standard),
    box-shadow var(--duration-normal) var(--ease-standard);
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.benefit-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-12);
}

.benefit-card h3 {
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-semibold);
}

.benefit-card p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
  margin-bottom: 0;
}

.system-stats {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  margin: var(--space-32) 0;
  gap: var(--space-16);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-16);
}

.stat-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.stat-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* Hardware tab styles */
.hardware-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-24);
}

@media (max-width: 768px) {
  .hardware-grid {
    grid-template-columns: 1fr;
  }
}

.antenna-array {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  margin-top: var(--space-16);
}

.antenna-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: var(--space-16);
  margin-bottom: var(--space-16);
}

.antenna {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-normal) var(--ease-standard);
  cursor: pointer;
}

.antenna::before {
  content: attr(data-type);
  font-size: var(--font-size-sm);
  color: var(--color-surface);
  font-weight: var(--font-weight-medium);
}

.antenna.tx {
  background-color: rgba(33, 128, 141, 0.8);
}

.antenna.rx {
  background-color: rgba(168, 75, 47, 0.8);
}

.antenna.active::after {
  content: '';
  position: absolute;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  border: 2px solid currentColor;
  animation: pulse 2s infinite;
}

.antenna.tx.active::after {
  color: rgba(33, 128, 141, 0.4);
}

.antenna.rx.active::after {
  color: rgba(168, 75, 47, 0.4);
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    opacity: 1;
  }
  70% {
    transform: scale(1.1);
    opacity: 0.3;
  }
  100% {
    transform: scale(0.95);
    opacity: 1;
  }
}

.antenna-legend {
  display: flex;
  justify-content: center;
  gap: var(--space-20);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.legend-color {
  width: 16px;
  height: 16px;
  border-radius: 50%;
}

.legend-color.tx {
  background-color: rgba(33, 128, 141, 0.8);
}

.legend-color.rx {
  background-color: rgba(168, 75, 47, 0.8);
}

.config-section {
  margin-top: var(--space-16);
}

.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  margin-bottom: var(--space-24);
}

.config-item {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-16);
  border: 1px solid var(--color-card-border);
}

.config-item label {
  display: block;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

.config-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

.csi-data {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  border: 1px solid var(--color-card-border);
}

.csi-display {
  margin-top: var(--space-12);
}

.csi-row {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  margin-bottom: var(--space-8);
}

.csi-bar {
  flex: 1;
  height: 12px;
  background-color: var(--color-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.csi-fill {
  height: 100%;
  transition: width 0.5s var(--ease-standard);
}

.csi-fill.amplitude {
  background: linear-gradient(90deg, #1FB8CD, #32B8C6);
}

.csi-fill.phase {
  background: linear-gradient(90deg, #FF9A3D, #E65125);
}

.csi-value {
  width: 40px;
  text-align: right;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
}

/* Demo tab styles */
.demo-controls {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  margin-bottom: var(--space-24);
}

.demo-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* Status indicator dot */
.status-indicator {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #555;
}

.status-indicator.active {
  background: #00cc88;
  box-shadow: 0 0 6px #00cc88;
}

.status-indicator.sim {
  background: #ffa500;
  box-shadow: 0 0 6px #ffa500;
  animation: pulse 1.5s infinite;
}

.status-indicator.connecting {
  background: #f0ad4e;
  animation: pulse 1s infinite;
}

.status-indicator.error {
  background: #ff3c3c;
}

/* Live Demo data-source banner */
.demo-source-banner {
  display: block;
  width: 100%;
  padding: 10px 16px;
  margin-bottom: 12px;
  border-radius: 6px;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-sizing: border-box;
}

.demo-source-live {
  background: rgba(0, 204, 136, 0.15);
  border: 1px solid #00cc88;
  color: #00cc88;
}

.demo-source-sim {
  background: rgba(255, 165, 0, 0.15);
  border: 1px solid #ffa500;
  color: #ffa500;
}

.demo-source-reconnecting {
  background: rgba(255, 180, 0, 0.12);
  border: 1px solid #f0ad4e;
  color: #f0ad4e;
  animation: pulse 1.5s infinite;
}

.demo-source-offline {
  background: rgba(255, 60, 60, 0.12);
  border: 1px solid #ff3c3c;
  color: #ff3c3c;
}

.demo-source-unknown {
  background: rgba(128, 128, 128, 0.12);
  border: 1px solid #888;
  color: #888;
}

.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-24);
}

@media (max-width: 768px) {
  .demo-grid {
    grid-template-columns: 1fr;
  }
}

.signal-panel, .pose-panel {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  border: 1px solid var(--color-card-border);
}

.signal-display, .pose-display {
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  margin: var(--space-12) 0;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

canvas {
  max-width: 100%;
}

.signal-metrics, .detection-info {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
}

.metric, .info-item {
  flex: 1;
  min-width: 120px;
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.metric span:last-child, .info-item span:last-child {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  font-family: var(--font-family-mono);
}

/* Architecture tab styles */
.architecture-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-24);
}

.architecture-image {
  max-width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-md);
}

.flow-steps {
  display: flex;
  justify-content: space-between;
  width: 100%;
  flex-wrap: wrap;
  gap: var(--space-16);
}

.step-card {
  flex: 1;
  min-width: 180px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  border: 1px solid var(--color-card-border);
  position: relative;
  transition: transform var(--duration-normal) var(--ease-standard),
    box-shadow var(--duration-normal) var(--ease-standard);
  cursor: pointer;
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-surface);
  border-radius: 50%;
  font-weight: var(--font-weight-bold);
  position: absolute;
  top: -16px;
  left: var(--space-16);
}

.step-card h3 {
  margin-top: var(--space-16);
  margin-bottom: var(--space-8);
}

.step-card p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

/* Performance tab styles */
.performance-chart {
  text-align: center;
  margin-bottom: var(--space-24);
}

.chart-image {
  max-width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.performance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
}

.performance-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  border: 1px solid var(--color-card-border);
}

.metric-list {
  margin-top: var(--space-16);
}

.metric-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  padding: var(--space-8);
  border-radius: var(--radius-md);
  background-color: rgba(0, 0, 0, 0.05);
}

.metric-value {
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family-mono);
}

.metric-value.success {
  color: var(--color-success);
}

.limitations-section {
  grid-column: 1 / -1;
  margin-top: var(--space-16);
}

.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-24);
  margin-top: var(--space-16);
}

@media (max-width: 768px) {
  .pros-cons {
    grid-template-columns: 1fr;
  }
}

.pros h4, .cons h4 {
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.pros ul, .cons ul {
  padding-left: var(--space-20);
}

.pros li, .cons li {
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
}

/* Applications tab styles */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.app-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  border: 1px solid var(--color-card-border);
  transition: transform var(--duration-normal) var(--ease-standard),
    box-shadow var(--duration-normal) var(--ease-standard);
  height: 100%;
}

.app-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.app-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-12);
}

.app-card h3 {
  margin-bottom: var(--space-12);
}

.app-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
}

.app-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.feature-tag {
  background-color: var(--color-secondary);
  color: var(--color-text);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.implementation-note {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  border: 1px solid var(--color-card-border);
  margin-top: var(--space-32);
}

.implementation-note h3 {
  margin-bottom: var(--space-12);
}

.implementation-note p {
  color: var(--color-text-secondary);
  margin-bottom: 0;
}
/* Additional styles for modular UI components */

/* Header info bar */
.header-info {
  display: flex;
  gap: var(--space-16);
  justify-content: center;
  margin-top: var(--space-16);
  font-size: var(--font-size-sm);
}

.api-version,
.api-environment,
.overall-health {
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
  background: var(--color-secondary);
  font-weight: var(--font-weight-medium);
}

.api-environment.env-development {
  background: rgba(var(--color-info-rgb), 0.1);
  color: var(--color-info);
}

.api-environment.env-production {
  background: rgba(var(--color-success-rgb), 0.1);
  color: var(--color-success);
}

.overall-health.status-healthy {
  background: rgba(var(--color-success-rgb), 0.1);
  color: var(--color-success);
}

.overall-health.status-degraded {
  background: rgba(var(--color-warning-rgb), 0.1);
  color: var(--color-warning);
}

.overall-health.status-unhealthy {
  background: rgba(var(--color-error-rgb), 0.1);
  color: var(--color-error);
}

/* Dashboard panels */
.live-status-panel,
.system-metrics-panel,
.features-panel,
.live-stats-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  margin-bottom: var(--space-24);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-16);
  margin-top: var(--space-16);
}

.component-status {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-12);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
}

.component-status.status-healthy {
  border-color: var(--color-success);
  background: rgba(var(--color-success-rgb), 0.05);
}

.component-status.status-degraded {
  border-color: var(--color-warning);
  background: rgba(var(--color-warning-rgb), 0.05);
}

.component-status.status-warning {
  border-color: #ffa500;
  background: rgba(255, 165, 0, 0.08);
}

.component-status.status-warning .status-text {
  color: #ffa500;
}

.component-status.status-unhealthy {
  border-color: var(--color-error);
  background: rgba(var(--color-error-rgb), 0.05);
}

.component-name {
  font-weight: var(--font-weight-semibold);
}

.status-text {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
}

.status-message {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

/* Metrics display */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-16);
  margin-top: var(--space-16);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.metric-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.progress-bar {
  height: 8px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  transition: width 0.3s ease;
}

.progress-fill.normal {
  background: var(--color-success);
}

.progress-fill.warning {
  background: var(--color-warning);
}

.progress-fill.critical {
  background: var(--color-error);
}

/* Features status */
.features-status {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-12);
  margin-top: var(--space-16);
}

.feature-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-8) var(--space-12);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
}

.feature-item.enabled {
  background: rgba(var(--color-success-rgb), 0.05);
  border-color: var(--color-success);
}

.feature-item.disabled {
  opacity: 0.6;
}

.feature-status {
  font-weight: var(--font-weight-semibold);
}

/* Live statistics */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-16);
  margin-top: var(--space-16);
}

.stat-item {
  text-align: center;
}

.stat-item .stat-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.person-count,
.avg-confidence,
.detection-count {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

/* Zones display */
.zones-panel {
  margin-top: var(--space-24);
}

.zones-summary {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.zone-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-8) var(--space-12);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
}

.zone-name {
  font-weight: var(--font-weight-medium);
}

.zone-count {
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-8);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
}

/* Error container */
.error-container {
  background: rgba(var(--color-error-rgb), 0.1);
  border: 1px solid var(--color-error);
  color: var(--color-error);
  padding: var(--space-12) var(--space-16);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-16);
}

/* Global error toast */
.error-toast {
  position: fixed;
  bottom: var(--space-24);
  right: var(--space-24);
  background: var(--color-error);
  color: white;
  padding: var(--space-12) var(--space-20);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  transform: translateY(100%);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
}

.error-toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Backend status toast */
.backend-status-toast {
  position: fixed;
  top: var(--space-24);
  right: var(--space-24);
  padding: var(--space-12) var(--space-20);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  transform: translateY(-100%);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1001;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.backend-status-toast.show {
  transform: translateY(0);
  opacity: 1;
}

.backend-status-toast.success {
  background: var(--color-success);
  color: white;
}

.backend-status-toast.warning {
  background: var(--color-warning);
  color: white;
}

.backend-status-toast.error {
  background: var(--color-error);
  color: white;
}

/* Tab badge */
.tab-badge {
  display: inline-block;
  margin-left: var(--space-8);
  padding: var(--space-2) var(--space-6);
  background: var(--color-error);
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

/* Help text */
.help-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-style: italic;
  margin-bottom: var(--space-16);
}

/* Array status */
.array-status {
  display: flex;
  gap: var(--space-16);
  margin-top: var(--space-16);
  padding: var(--space-12);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
}

.array-info {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.info-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.info-value {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

/* ===== Sensing Tab Styles ===== */

.sensing-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-16);
  min-height: 550px;
}

@media (max-width: 900px) {
  .sensing-layout {
    grid-template-columns: 1fr;
  }
}

.sensing-viewport {
  background: #0a0a12;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  overflow: hidden;
  min-height: 500px;
  position: relative;
}

.sensing-viewport canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.sensing-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

/* Side panel */
.sensing-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  overflow-y: auto;
  max-height: 600px;
}

.sensing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-md);
  padding: var(--space-12);
}

.sensing-card-title {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

/* Connection status */
.sensing-connection {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
}

.sensing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-info);
  flex-shrink: 0;
}

.sensing-dot.connected {
  background: #00cc88;
  box-shadow: 0 0 6px #00cc88;
}

.sensing-dot.simulated {
  background: var(--color-warning);
  box-shadow: 0 0 6px var(--color-warning);
}

.sensing-dot.connecting {
  background: var(--color-info);
  animation: pulse 1.5s infinite;
}

.sensing-dot.disconnected {
  background: var(--color-error);
}

.sensing-dot.reconnecting {
  background: var(--color-warning);
  animation: pulse 1.5s infinite;
}

.sensing-source {
  margin-left: auto;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-family: var(--font-family-mono);
}

.sensing-about-text {
  margin: 0;
  font-size: 12px;
  color: #aaa;
  line-height: 1.5;
}

.sensing-about-text strong {
  color: #ccc;
}

/* Data-source status banner (live / reconnecting / simulated) */
.sensing-source-banner {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  margin-bottom: var(--space-12);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-family-mono);
  text-align: center;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-sizing: border-box;
}

.sensing-source-live {
  background: rgba(0, 204, 136, 0.15);
  border: 1px solid #00cc88;
  color: #00cc88;
}

.sensing-source-reconnecting {
  background: rgba(255, 180, 0, 0.12);
  border: 1px solid var(--color-warning);
  color: var(--color-warning);
  animation: pulse 1.5s infinite;
}

.sensing-source-server-sim {
  background: rgba(255, 165, 0, 0.15);
  border: 1px solid #ffa500;
  color: #ffa500;
}

.sensing-source-simulated {
  background: rgba(255, 60, 60, 0.12);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

/* Health indicator for server-simulated data */
.health-sim {
  color: #ffa500;
  font-weight: 600;
}

/* Big RSSI value */
.sensing-big-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-family: var(--font-family-mono);
  margin-bottom: var(--space-4);
}

#sensingSparkline {
  width: 100%;
  height: 40px;
  display: block;
}

/* Meter bars */
.sensing-meters {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.sensing-meter {
  display: grid;
  grid-template-columns: 90px 1fr 50px;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
}

.sensing-meter label {
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.sensing-bar {
  height: 6px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.sensing-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
  background: var(--color-primary);
  width: 0%;
}

.sensing-bar-fill.motion {
  background: linear-gradient(90deg, #ff6633, #ff3333);
}

.sensing-bar-fill.breath {
  background: linear-gradient(90deg, #33ccff, #3366ff);
}

.sensing-bar-fill.spectral {
  background: linear-gradient(90deg, #aa66ff, #ff66aa);
}

.sensing-bar-fill.confidence {
  background: linear-gradient(90deg, #33cc88, #00ff88);
}

.sensing-meter-val {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
  text-align: right;
  color: var(--color-text-secondary);
}

/* Classification */
.sensing-classification {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.sensing-class-label {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  text-align: center;
  padding: var(--space-8);
  border-radius: var(--radius-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sensing-class-label.absent {
  background: rgba(var(--color-info-rgb), 0.15);
  color: var(--color-info);
}

.sensing-class-label.present_still {
  background: rgba(var(--color-success-rgb), 0.15);
  color: var(--color-success);
}

.sensing-class-label.active {
  background: rgba(var(--color-error-rgb), 0.15);
  color: var(--color-error);
}

.sensing-confidence {
  display: grid;
  grid-template-columns: 70px 1fr 40px;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
}

.sensing-confidence label {
  color: var(--color-text-secondary);
}

/* Details */
.sensing-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.sensing-detail-row {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-card-border-inner);
}

.sensing-detail-row:last-child {
  border-bottom: none;
}

.sensing-detail-row span:first-child {
  color: var(--color-text-secondary);
}

.sensing-detail-row span:last-child {
  font-family: var(--font-family-mono);
  font-weight: var(--font-weight-medium);
}

/* ===== Training Tab Styles ===== */

#training .tab-header {
  margin-bottom: 20px;
}

#training .tab-header h2 {
  color: var(--color-text);
  margin: 0 0 8px 0;
}

#training .tab-header p {
  color: var(--color-text-secondary);
  margin: 0;
  font-size: var(--font-size-sm);
}

/* Training Panel */
.training-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
}

.training-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-16);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.training-panel-header h3 {
  color: var(--color-text);
  margin: 0;
  font-size: var(--font-size-base);
}

.training-status-badge {
  padding: var(--space-2) 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
}

.training-status-idle {
  background: var(--color-secondary);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.training-status-active {
  background: rgba(var(--color-error-rgb), 0.15);
  color: var(--color-error);
  border: 1px solid rgba(var(--color-error-rgb), var(--status-border-opacity));
  animation: pulse-training 2s infinite;
}

.training-status-completed {
  background: rgba(var(--color-success-rgb), 0.15);
  color: var(--color-success);
  border: 1px solid rgba(var(--color-success-rgb), var(--status-border-opacity));
}

@keyframes pulse-training {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* Recording list */
.recording-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px var(--space-12);
  background: var(--color-secondary);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-8);
}

.recording-item-info {
  flex: 1;
}

.recording-item-name {
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.recording-item-meta {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  margin-top: var(--space-2);
}

/* Model cards */
.model-card {
  padding: var(--space-12);
  background: var(--color-secondary);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-8);
  transition: border-color 0.2s;
}

.model-card:hover {
  border-color: var(--color-border);
}

.model-card-active {
  border-left: 3px solid var(--color-success);
}

.model-card-name {
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.model-card-meta {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  margin-top: var(--space-4);
}

.model-card-stats {
  display: flex;
  gap: var(--space-12);
  margin-top: var(--space-8);
}

.model-card-stat {
  font-size: var(--font-size-xs);
}

.model-card-stat-label {
  color: var(--color-text-secondary);
}

.model-card-stat-value {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
}

/* Training chart */
.training-chart-container {
  background: var(--color-secondary);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-base);
  padding: var(--space-12);
  margin: var(--space-12) 0;
}

.training-chart-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-8);
}

/* Training config form */
.training-config-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
}

.training-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.training-form-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.training-form-input {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  color: var(--color-text);
  padding: var(--space-8) 10px;
  font-size: var(--font-size-sm);
  font-family: inherit;
}

.training-form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.training-form-select {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  color: var(--color-text);
  padding: var(--space-8) 10px;
  font-size: var(--font-size-sm);
}

/* Training buttons */
.training-btn {
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  border: 1px solid transparent;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all 0.2s;
}

.training-btn-primary {
  background: rgba(var(--color-success-rgb), 0.15);
  color: var(--color-success);
  border-color: rgba(var(--color-success-rgb), var(--status-border-opacity));
}

.training-btn-primary:hover {
  background: rgba(var(--color-success-rgb), 0.25);
}

.training-btn-danger {
  background: rgba(var(--color-error-rgb), 0.15);
  color: var(--color-error);
  border-color: rgba(var(--color-error-rgb), var(--status-border-opacity));
}

.training-btn-danger:hover {
  background: rgba(var(--color-error-rgb), 0.25);
}

.training-btn-secondary {
  background: rgba(var(--color-primary-rgb), 0.15);
  color: var(--color-primary);
  border-color: rgba(var(--color-primary-rgb), var(--status-border-opacity));
}

.training-btn-secondary:hover {
  background: rgba(var(--color-primary-rgb), 0.25);
}

.training-btn-muted {
  background: var(--color-secondary);
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}

.training-btn-muted:hover {
  background: var(--color-secondary-hover);
}

/* Progress bar */
.training-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: var(--space-8) 0;
}

.training-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-success));
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

/* Metrics grid */
.training-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin: var(--space-12) 0;
}

.training-metric {
  text-align: center;
  padding: var(--space-8);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
}

.training-metric-value {
  color: var(--color-text);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-family-mono);
}

.training-metric-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: var(--space-2);
}

/* Collapsible section */
.training-collapsible-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  cursor: pointer;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.training-collapsible-header:hover {
  color: var(--color-primary);
}

.training-collapsible-content {
  padding: var(--space-12) 0;
}

/* Pose trail toggle in toolbar */
.pose-trail-btn {
  padding: var(--space-6) 14px;
  border-radius: var(--radius-base);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all 0.2s;
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(var(--color-primary-rgb), 0.3);
}

.pose-trail-btn.active {
  background: rgba(var(--color-primary-rgb), 0.25);
  border-color: rgba(var(--color-primary-rgb), 0.6);
}

.pose-trail-btn:hover {
  background: rgba(var(--color-primary-rgb), 0.2);
}