:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgb(3, 42, 46);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  /* RGB versions for opacity control */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;

  /* Background color tokens (Light Mode) */
  --color-bg-1: rgba(59, 130, 246, 0.08);
  /* Light blue */
  --color-bg-2: rgba(245, 158, 11, 0.08);
  /* Light yellow */
  --color-bg-3: rgba(34, 197, 94, 0.08);
  /* Light green */
  --color-bg-4: rgba(239, 68, 68, 0.08);
  /* Light red */
  --color-bg-5: rgba(147, 51, 234, 0.08);
  /* Light purple */
  --color-bg-6: rgba(249, 115, 22, 0.08);
  /* Light orange */
  --color-bg-7: rgba(236, 72, 153, 0.08);
  /* Light pink */
  --color-bg-8: rgba(6, 182, 212, 0.08);
  /* Light cyan */

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);
  --color-select-caret: rgba(var(--color-slate-900-rgb), 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;
}



/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  /* RGB versions for opacity control (dark mode) */
  --color-gray-400-rgb: 119, 124, 124;
  --color-teal-300-rgb: 50, 184, 198;
  --color-gray-300-rgb: 167, 169, 169;
  --color-gray-200-rgb: 245, 245, 245;

  /* Colorful background palette - Dark Mode */
  --color-bg-1: rgba(29, 78, 216, 0.15);
  /* Dark blue */
  --color-bg-2: rgba(180, 83, 9, 0.15);
  /* Dark yellow */
  --color-bg-3: rgba(21, 128, 61, 0.15);
  /* Dark green */
  --color-bg-4: rgba(143, 60, 60, 0.15);
  /* Dark red */
  --color-bg-5: rgba(107, 33, 168, 0.15);
  /* Dark purple */
  --color-bg-6: rgba(194, 65, 12, 0.15);
  /* Dark orange */
  --color-bg-7: rgba(190, 24, 93, 0.15);
  /* Dark pink */
  --color-bg-8: rgba(8, 145, 178, 0.15);
  /* Dark cyan */

  /* Semantic Color Tokens (Dark Mode) */
  --color-background: var(--color-charcoal-700);
  --color-surface: var(--color-charcoal-800);
  --color-text: var(--color-gray-200);
  --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
  --color-primary: var(--color-teal-300);
  --color-primary-hover: var(--color-teal-400);
  --color-primary-active: var(--color-teal-800);
  --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
  --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
  --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
  --color-border: rgba(var(--color-gray-400-rgb), 0.3);
  --color-error: var(--color-red-400);
  --color-success: var(--color-teal-300);
  --color-warning: var(--color-orange-400);
  --color-info: var(--color-gray-300);
  --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
  --color-btn-primary-text: var(--color-slate-900);
  --color-card-border: rgba(var(--color-gray-400-rgb), 0.15);
  --color-card-border-inner: rgba(var(--color-gray-400-rgb), 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(var(--color-gray-400-rgb), 0.2);
  --color-select-caret: rgba(var(--color-gray-200-rgb), 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: var(--color-teal-300-rgb);
  --color-error-rgb: var(--color-red-400-rgb);
  --color-warning-rgb: var(--color-orange-400-rgb);
  --color-info-rgb: var(--color-gray-300-rgb);
}

[data-color-scheme="light"] {
  /* RGB versions for opacity control (light mode) */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);

  /* RGB versions for light mode */
  --color-success-rgb: var(--color-teal-500-rgb);
  --color-error-rgb: var(--color-red-500-rgb);
  --color-warning-rgb: var(--color-orange-500-rgb);
  --color-info-rgb: var(--color-slate-500-rgb);
}

/* 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--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://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2') format('woff2');
}



/* Navbar (Theme Aware) */
.navbar {
  width: 100%;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

.nav-menu > li {
  position: relative;
  flex-grow: 1;
  text-align: center;
}

.nav-menu > li > a {
  display: block;
  padding: 16px 20px;
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--duration-fast), color var(--duration-fast);
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
  background: var(--color-secondary);
  color: var(--color-primary);
}

/* Dropdown */
.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  min-width: 180px;
  z-index: 1000;
}

.dropdown-content li a {
  padding: 12px 20px;
  display: block;
  color: var(--color-text);
}

.dropdown-content li a:hover {
  background: var(--color-secondary);
}

.dropdown:hover .dropdown-content {
  display: block;
}



/*For slideshow gallery of lab pictures*/

* {
  box-sizing: border-box;
}

.slideshow-container {
  max-width: 1000px;
  position: relative;
  margin: auto;
}

/* .mySlides { */
/* display: none; */
/* } */

.mySlides img {
  width: 100%;
  height: 450px;
  object-fit: scale-down;
  background: var(--color-surface);
}


.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  padding: 16px;
  margin-top: -22px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: 0.6s;
  border-radius: 0 3px 3px 0;
  user-select: none;
}

.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}

.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

.dot {
  cursor: pointer;
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: 0.6s;
}

.active,
.dot:hover {
  background-color: #717171;
}

.fade {
  animation-name: fade;
  animation-duration: 1.5s;
}

@keyframes fade {
  from {
    opacity: .4
  }

  to {
    opacity: 1
  }
}

/*For slideshow gallery of lab pictures*/


/* Enhanced styles for HEP-Detector Development Lab */

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-slate-900) 0%, var(--color-teal-700) 100%);
  color: var(--color-white);
  padding: var(--space-32) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-16);
  color: var(--color-white);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-16);
  color: var(--color-teal-300);
}

.hero-description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-32);
  opacity: 0.9;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-32);
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-teal-300);
}

.stat-label {
  display: block;
  font-size: var(--font-size-sm);
  opacity: 0.8;
  margin-top: var(--space-4);
}

/* Research Areas Section */
.research-areas {
  padding: var(--space-32) 0;
  background-color: var(--color-background);
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-24);
  margin-top: var(--space-32);
}

.research-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
  overflow: hidden;
}

.research-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-teal-500), var(--color-teal-300));
}

.research-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.research-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-16);
  text-align: center;
}

.research-card h3 {
  color: var(--color-text);
  margin-bottom: var(--space-12);
  font-size: var(--font-size-xl);
}

.research-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-20);
  line-height: var(--line-height-normal);
}

.research-projects {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.project-tag {
  background: 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);
}

/* Section Titles */
.section-title {
  text-align: center;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-16);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-teal-500), var(--color-teal-300));
  border-radius: var(--radius-full);
}

/* Faculty Section */
.faculty {
  padding: var(--space-32) 0;
  background: var(--color-bg-1);
}

.faculty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-24);
  margin-top: var(--space-32);
}

.faculty-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-md);
  transition: all var(--duration-normal) var(--ease-standard);
  display: flex;
  gap: var(--space-20);
}

.faculty-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}



/*Photo Insertion*/

.circle-photo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #ccc;
  /* fallback color */
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  /* keeps image perfectly round */
  border: 2px solid #ccc;
  /* optional: neat border */
}

.faculty-card,
.lab-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
}


.circle-photo a {
  cursor: pointer;
  text-decoration: none;
}

.circle-photo a:hover .profile-img {
  box-shadow: 0 0 10px #587391;
  transform: scale(1.05);
  transition: all 0.2s;
}

/*Photo Insertion*/











/* .faculty-avatar {
  flex-shrink: 0;
}

.avatar-placeholder, .logo-placeholder {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-teal-500), var(--color-teal-300));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
} */

.faculty-info h3 {
  color: var(--color-text);
  margin-bottom: var(--space-8);
  font-size: var(--font-size-xl);
}

.faculty-title {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-8);
}

.faculty-expertise,
.faculty-experience {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
}

.faculty-email {
  color: var(--color-primary);
  text-decoration: none;
  font-size: var(--font-size-sm);
}

.faculty-email:hover {
  color: var(--color-primary-hover);
}

/* Publications Section */
.publications {
  padding: var(--space-32) 0;
  background: var(--color-background);
}

.publication-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin: var(--space-24) 0;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--color-secondary);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
}

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

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

.publications-list {
  max-width: 900px;
  margin: 0 auto;
}

.publication-item {
  background: var(--color-surface);
  border-radius: var(--radius-base);
  padding: var(--space-20);
  margin-bottom: var(--space-16);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-xs);
  display: flex;
  gap: var(--space-20);
  transition: all var(--duration-normal) var(--ease-standard);
}

.publication-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.publication-item.hidden {
  display: none;
}

.publication-year {
  flex-shrink: 0;
  width: 60px;
  text-align: center;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-size: var(--font-size-lg);
}

.publication-content h4 {
  color: var(--color-text);
  margin-bottom: var(--space-8);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
}

.publication-authors {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
  font-weight: var(--font-weight-medium);
}

.publication-journal {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-8);
  font-style: italic;
}

.publication-doi {
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  text-decoration: none;
}

.publication-doi:hover {
  color: var(--color-primary-hover);
}

/* Lab Members Section */
.lab-members {
  padding: var(--space-32) 0;
  background: var(--color-bg-2);
}

.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-20);
  margin-top: var(--space-32);
}

.member-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
  overflow: hidden;
}

.member-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange-500), var(--color-orange-400));
}

.member-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.member-avatar {
  margin: 0 auto var(--space-16);
  width: fit-content;
}

.member-avatar .avatar-placeholder {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-orange-500), var(--color-orange-400));
}

.member-card h4 {
  color: var(--color-text);
  margin-bottom: var(--space-8);
  font-size: var(--font-size-lg);
}

.member-position {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
}

.member-research {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.member-year {
  color: var(--color-info);
  font-size: var(--font-size-xs);
  margin-bottom: var(--space-16);
  font-weight: var(--font-weight-medium);
}

.member-links {
  display: flex;
  gap: var(--space-8);
  justify-content: center;
}

/* Facilities Section */
.facilities {
  padding: var(--space-32) 0;
  background: var(--color-background);
}

.facilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-24);
  margin-top: var(--space-32);
}

.facility-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
}

.facility-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-success), var(--color-teal-300));
}

.facility-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.facility-icon {
  font-size: 2rem;
  margin-bottom: var(--space-16);
  text-align: center;
}

.facility-card h4 {
  color: var(--color-text);
  margin-bottom: var(--space-12);
  font-size: var(--font-size-lg);
}

.facility-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  line-height: var(--line-height-normal);
}

.facility-specs {
  list-style: none;
  padding: 0;
  margin: 0;
}

.facility-specs li {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-6);
  padding-left: var(--space-16);
  position: relative;
}

.facility-specs li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
}

/* Collaborations Section */
.collaborations {
  padding: var(--space-32) 0;
  background: var(--color-bg-3);
}

.collaborations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-20);
  margin-top: var(--space-32);
}

.collaboration-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
  overflow: hidden;
}

.collaboration-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-warning), var(--color-orange-400));
}

.collaboration-card:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.collaboration-logo {
  margin: 0 auto var(--space-16);
  width: fit-content;
}

.collaboration-logo .logo-placeholder {
  background: linear-gradient(135deg, var(--color-warning), var(--color-orange-400));
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
}

.collaboration-card h4 {
  color: var(--color-text);
  margin-bottom: var(--space-8);
  font-size: var(--font-size-md);
}

.collaboration-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.collaboration-location {
  color: var(--color-info);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

/* Footer */
.footer {
  background: var(--color-slate-900);
  color: var(--color-gray-300);
  padding: var(--space-32) 0 var(--space-16);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-24);
  margin-bottom: var(--space-24);
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--space-16);
  font-size: var(--font-size-lg);
}

.footer-section p {
  margin-bottom: var(--space-8);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.footer-section a {
  display: block;
  color: var(--color-gray-300);
  text-decoration: none;
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
  transition: color var(--duration-fast) var(--ease-standard);
}

.footer-section a:hover {
  color: var(--color-teal-300);
}

.footer-bottom {
  border-top: 1px solid rgba(var(--color-gray-400-rgb), 0.2);
  padding-top: var(--space-16);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-stats {
    gap: var(--space-20);
  }

  .faculty-card {
    flex-direction: column;
    text-align: center;
  }

  .publication-item {
    flex-direction: column;
    gap: var(--space-12);
  }

  .publication-year {
    width: auto;
    text-align: left;
  }

  .member-links {
    flex-direction: column;
  }

  .publication-filters {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .research-grid,
  .facilities-grid {
    grid-template-columns: 1fr;
  }

  .members-grid,
  .collaborations-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
}

/* Animation for smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Enhanced focus states for accessibility */
.btn:focus-visible,
.filter-btn:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .hero {
    background: none;
    color: var(--color-text);
  }

  .card,
  .research-card,
  .faculty-card,
  .member-card,
  .facility-card,
  .collaboration-card,
  .publication-item {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}

/* ============================= */
/* PROFESSIONAL LAB MEMBER CARDS */
/* ============================= */

.lab-members {
  padding: var(--space-32) 0;
  background: var(--color-bg-2);
}

/*.members-grid {
   display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-24);
  
  margin-top: var(--space-32); */

  .members-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 768px) {
  .members-grid {
    grid-template-columns: 1fr;
  }
}

/* Card */
.member-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-md);
  transition: all var(--duration-normal) var(--ease-standard);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: unset;
  position: relative;
}

.member-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* Image */
.member-avatar {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--space-16);
  border: 4px solid var(--color-secondary);
  transition: transform var(--duration-fast);
}

.member-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.member-card:hover .member-avatar {
  transform: scale(1.05);
}

/* Name */
.member-card h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-6);
}

/* Position */
.member-position {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  margin-bottom: var(--space-12);
}

/* Research Area */
.member-research {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  line-height: 1.6;
  flex-grow: 1;
}

/* Buttons */
.member-buttons {
  display: flex;
  gap: var(--space-12);
  justify-content: center;
  margin-top: auto;
}

.member-buttons .btn {
  padding: var(--space-6) var(--space-14);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-base);
}

/* Responsive Fix */
@media (max-width: 768px) {
  .members-grid {
    grid-template-columns: 1fr;
  }

  .member-card {
    min-height: auto;
  }
}