: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: rgba(41, 150, 161, 1);
  --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: 5px;
  --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 {
    /* 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;

    /* Background color tokens (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(185, 28, 28, 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: #070755;
    --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), 0.2);
    --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);
    --button-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --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 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(185, 28, 28, 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: #070755;
  --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: darkblue;
    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: darkblue;
  background-color: linear-gradient(to right top, #d5fefd, #e0fdff, #effbff, #fbfaff, #fffcff);
  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');
}

/* END PERPLEXITY DESIGN SYSTEM */
/* CipherNet Eduverse Labs - Complete 37 Vulnerabilities Platform */

/* Custom CSS properties for the cybersecurity theme */
:root {
  --cyber-primary: var(--color-primary);
  --cyber-primary-hover: var(--color-primary-hover);
  --cyber-secondary: var(--color-secondary);
  --cyber-accent: var(--color-teal-300);
  --cyber-warning: var(--color-warning);
  --cyber-error: var(--color-error);
  --cyber-success: var(--color-success);
  
  /* Lab environment colors */
  --lab-vulnerable: rgba(239, 68, 68, 0.1);
  --lab-secure: rgba(34, 197, 94, 0.1);
  --lab-warning: rgba(245, 158, 11, 0.1);
  --lab-info: rgba(59, 130, 246, 0.1);
  
  /* Fluid typography using clamp() */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 3rem);
  --text-4xl: clamp(2.25rem, 1.8rem + 2.25vw, 4rem);
  
  /* Responsive spacing */
  --space-xs: clamp(0.25rem, 0.2rem + 0.25vw, 0.5rem);
  --space-sm: clamp(0.5rem, 0.4rem + 0.5vw, 1rem);
  --space-md: clamp(1rem, 0.8rem + 1vw, 2rem);
  --space-lg: clamp(1.5rem, 1.2rem + 1.5vw, 3rem);
  --space-xl: clamp(2rem, 1.6rem + 2vw, 4rem);
  
  /* Vulnerability severity colors */
  --severity-critical: #dc2626;
  --severity-high: #ea580c;
  --severity-medium: #d97706;
  --severity-low: #059669;
  --severity-info: #0284c7;
}

/* Base styles - Mobile first (320px+) */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-base);
  font-size: ;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container - Fluid with max-widths */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-16);
}

/* Header - Mobile First */
.header {
  position: sticky;
      height: 100px;
  top: 0;
  z-index: 1000;
  background: rgba(var(--color-surface-rgb, 252, 252, 249), 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-12) var(--space-16);
  min-height: 3.5rem;
}

.nav-brand {
  flex: 1;
  min-width: 0;
}

.brand-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  color: var(--cyber-primary);
  margin: 0;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-tagline {  
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  display: none;
  margin-top: var(--space-2);
}

/* Desktop navigation - Hidden on mobile */
.nav-links,
.nav-auth {
         display: inline-block;
  padding: auto;

}

/* Mobile menu button - Touch friendly */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 2.75rem;
  height: 2.75rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-8);
  border-radius: var(--radius-sm);
  transition: background-color var(--duration-fast) var(--ease-standard);
  touch-action: manipulation;
}

.mobile-menu-btn:hover,
.mobile-menu-btn:focus {
  background-color: var(--color-secondary);
  outline: none;
}

.hamburger-line {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-text);
  border-radius: 1px;
  transition: all var(--duration-fast) var(--ease-standard);
}

/* Mobile Navigation Overlay - Full screen on mobile */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  justify-content: flex-end;
  opacity: 1;
  transition: opacity var(--duration-normal) var(--ease-standard);
}

.mobile-nav-overlay.hidden {
  display: none;
}

.mobile-nav-content {
  background: var(--color-surface);
  width: min(20rem, 85vw);
  height: 100%;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform var(--duration-normal) var(--ease-standard);
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-20);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.mobile-nav-header h2 {
  color: var(--color-text);
  margin: 0;
  font-size: var(--text-xl);
}

.mobile-nav-close {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: var(--text-2xl);
  cursor: pointer;
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) var(--ease-standard);
  touch-action: manipulation;
}

.mobile-nav-close:hover,
.mobile-nav-close:focus {
  background: var(--color-secondary);
  color: var(--color-text);
  outline: none;
}

.mobile-nav-links {
  padding: 10px;
  flex: 1;
  overflow-y: auto;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  padding: var(--space-16) var(--space-20);
  transition: all var(--duration-fast) var(--ease-standard);
  font-size: var(--text-lg);
  min-height: 2.75rem;
  touch-action: manipulation;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--cyber-primary);
  background: var(--color-bg-1);
}

.mobile-nav-auth,
.mobile-user-menu {
  padding: var(--space-20);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.mobile-user-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.mobile-user-name {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-lg);
}

/* Main Content */
.main-content {
  min-height: calc(100vh - 3.5rem);
}

.view {
  display: none;
  padding: var(--space-lg) 0;
}

.view.active {
  display: block;
}

.view-header {
  margin-bottom: var(--space-xl);
  text-align: center;
}

.view-title {
  font-size: var(--text-3xl);
  color: var(--color-text);
  margin-bottom: var(--space-md);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
}

.view-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 42rem;
  margin: 0 auto;
  line-height: 1.5;
}

/* Hero Section - Mobile First */
.hero-section {
  background: #070755;
  padding: var(--space-xl) 0;
  margin-bottom: var(--space-xl);
  border-radius: var(--radius-lg);
  margin: 0 var(--space-16) var(--space-xl) var(--space-16);
}

.hero-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-md);
  text-align: center;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--space-xl);
  line-height: 1.5;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(6rem, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  justify-items: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  text-align: center;
  min-width: 6rem;
}

.stat-number {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--cyber-primary);
  line-height: 1;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-align: center;
  line-height: 1.3;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  max-width: 20rem;
  margin: 0 auto;
}

/* Section styling */
.featured-section,
.getting-started-section,
.platform-features {
  margin-bottom: var(--space-xl);
}

.section-title {
  font-size: var(--text-2xl);
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--space-lg);
  font-weight: var(--font-weight-semibold);
}

/* Grid layouts - Mobile first, progressively enhanced */
.featured-grid,
.categories-grid,
.steps-grid,
.features-grid,
.all-labs-grid,
.progress-categories {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

/* Card Components - Touch friendly */
.featured-card,
.category-card,
.step-card,
.feature-card,
.lab-card {
  background: linear-gradient(to right top, #d5fefd, #e0fdff, #effbff, #fbfaff, #fffcff);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  transition: all var(--duration-normal) var(--ease-standard);
  cursor: pointer;
  touch-action: manipulation;
}

.featured-card:hover,
.category-card:hover,
.lab-card:hover,
.featured-card:focus,
.category-card:focus,
.lab-card:focus {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--cyber-primary);
  outline: none;
}

.step-card,
.feature-card {
  text-align: center;
  cursor: default;
}

.step-card:hover,
.step-card:focus,
.feature-card:hover,
.feature-card:focus {
  transform: none;
}

.category-header,
.lab-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.category-title,
.lab-title {
    color: darkblue;
    font-size: 15px;
    font-weight: 500;
    margin: auto;
    line-height: 1.5;
}

.category-meta,
.lab-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

.severity-badge,
.difficulty-badge {
  font-size: var(--text-xs);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.lab-time,
.lab-type {
    font-size: var(--text-xs);
    color: darkblue;
    background: lightblue;
    /* padding: 5px; */
    border-radius: 5px;
    width: -webkit-fill-available;
}

.lab-category {
  font-size: var(--text-xs);
  color: brown;
  font-weight: var(--font-weight-medium);
}

/* Severity badges */
.severity-critical {
  background: rgba(220, 38, 38, 0.15);
  color: var(--severity-critical);
  border: 1px solid rgba(220, 38, 38, 0.25);
}

.severity-high {
  background: rgba(234, 88, 12, 0.15);
  color: var(--severity-high);
  border: 1px solid rgba(234, 88, 12, 0.25);
}

.severity-medium {
  background: rgba(217, 119, 6, 0.15);
  color: var(--severity-medium);
  border: 1px solid rgba(217, 119, 6, 0.25);
}

.severity-low {
  background: rgba(5, 150, 105, 0.15);
  color: var(--severity-low);
  border: 1px solid rgba(5, 150, 105, 0.25);
}

.severity-info {
  background: rgba(2, 132, 199, 0.15);
  color: var(--severity-info);
  border: 1px solid rgba(2, 132, 199, 0.25);
}

/* Difficulty badges */
.difficulty-beginner {
  background: rgba(var(--color-success-rgb), 0.15);
  color: var(--color-success);
  border: ;
}

.difficulty-intermediate {
  background: rgba(var(--color-warning-rgb), 0.15);
  color: var(--color-warning);
  border: 1px solid rgba(var(--color-warning-rgb), 0.25);
}

.difficulty-advanced {
  background: rgba(var(--color-error-rgb), 0.15);
  color: var(--color-error);
  border: 1px solid rgba(var(--color-error-rgb), 0.25);
}

.difficulty-expert {
  background: rgba(148, 68, 84, 0.15);
  color: #944454;
  border: 1px solid rgba(148, 68, 84, 0.25);
}

.category-description,
.lab-objective {
  color: black;
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.category-footer,
.lab-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.labs-count {
  font-size: var(--text-sm);
  color: darkblue;
  font-weight: var(--font-weight-medium);
}

.progress-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.progress-bar {
  flex: 1;
  height: 0.5rem;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--cyber-primary);
  transition: width var(--duration-normal) var(--ease-standard);
  border-radius: var(--radius-full);
}

.progress-text {
  font-size: var(--text-xs);
  color: red;
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
  font-family: var(--font-family-mono);
}

/* Feature cards */
.feature-icon {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  color: darkblue;
  margin-bottom: var(--space-sm);
  font-size: var(--text-lg);
}

.feature-card p {
  color: darkblue;
  margin: 0;
  line-height: 1.5;
}

/* Step card specific */
.step-number {
  width: 3rem;
  height: 3rem;
  background: var(--cyber-primary);
  color: var(--color-btn-primary-text);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  margin: 0 auto var(--space-md) auto;
}

.step-card h3 {
  color: darkblue;
  margin-bottom: var(--space-sm);
  font-size: var(--text-lg);
}

.step-card p {
  color: black;
  margin: 0;
  line-height: 1.5;
}

/* Search and filters */
.search-section {
  margin-bottom: var(--space-lg);
}

.labs-filters {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.labs-stats {
  margin-bottom: var(--space-lg);
  text-align: center;
}

.labs-count-display {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Progress view */
.progress-overview {
  margin-bottom: var(--space-xl);
}

.progress-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.progress-stat {
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.progress-circle {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: conic-gradient(var(--cyber-primary) 0deg, var(--color-secondary) 0deg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md) auto;
  position: relative;
}

.progress-circle::before {
  content: '';
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--color-surface);
  position: absolute;
}

.progress-percentage {
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--cyber-primary);
  position: relative;
  z-index: 1;
}

.progress-number {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--cyber-primary);
  display: block;
  line-height: 1;
}

.progress-stat h3 {
  color: var(--color-text);
  margin: 0;
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
}

.progress-category-card {
  background: rgb(38 40 40 / 50%);
  border: 1px solid rgb(19 193 193);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}

.progress-category-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-sm);
  gap: var(--space-sm);
}

.progress-category-title {
  color: var(--color-text);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  margin: 0;
  flex: 1;
  line-height: 1.4;
}

.progress-category-stats {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
  font-family: var(--font-family-mono);
}

/* Leaderboard Styles */
.leaderboard-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.leaderboard-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.leaderboard-card h3 {
  color: var(--color-text);
  margin: 0 0 var(--space-sm) 0;
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
}

.rank-number {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--cyber-primary);
  display: block;
  line-height: 1;
}

.leaderboard-table {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.leaderboard-header {
  background: linear-gradient(to right top, #d5fefd, #e0fdff, #effbff, #fbfaff, #fffcff);
  padding: var(--space-md);
  font-weight: var(--font-weight-semibold);
  color: darkblue;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr 1fr;
  gap: var(--space-sm);
}

.leaderboard-row {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-card-border-inner);
  display: grid;
  grid-template-columns: 1fr 2fr 1fr 1fr;
  gap: var(--space-sm);
  align-items: center;
}

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

.leaderboard-row.current-user {
  background: var(--color-bg-3);
  font-weight: var(--font-weight-semibold);
}

.rank-position {
  font-weight: var(--font-weight-bold);
  color: var(--cyber-primary);
}

.user-name {
  color: var(--color-text);
}

.user-score {
  font-family: var(--font-family-mono);
  color: var(--color-text-secondary);
}

.user-labs {
  font-family: var(--font-family-mono);
  color: var(--color-text-secondary);
}

/* Lab Environment Modal - Larger for interactive content */
.lab-modal {
  padding: var(--space-sm);
}

.lab-modal-content {
  width: 100%;
  max-width: 60rem;
  max-height: 95vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.lab-environment {
  background: var(--color-bg-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  min-height: 20rem;
  font-family: var(--font-family-mono);
  font-size: var(--text-sm);
}

.vulnerable-app {
  background: var(--color-surface);
  border: 2px solid var(--color-warning);
  border-radius: var(--radius-base);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

.vulnerable-app-header {
  background: var(--lab-warning);
  color: var(--color-warning);
  padding: var(--space-sm) var(--space-md);
  margin: calc(-1 * var(--space-md)) calc(-1 * var(--space-md)) var(--space-md) calc(-1 * var(--space-md));
  border-radius: var(--radius-base) var(--radius-base) 0 0;
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-sm);
}

.lab-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

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

.lab-form-group:last-child {
  margin-bottom: 0;
}

.lab-form label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.lab-form input,
.lab-form textarea,
.lab-form select {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-family-mono);
  font-size: var(--text-sm);
  background: white;
  color: var(--color-text);
}

.lab-form input:focus,
.lab-form textarea:focus,
.lab-form select:focus {
  outline: 2px solid var(--cyber-primary);
  border-color: var(--cyber-primary);
}

.lab-output {
  background: var(--color-charcoal-800);
  color: var(--color-gray-200);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  font-family: var(--font-family-mono);
  font-size: var(--text-sm);
  min-height: 6rem;
  white-space: pre-wrap;
  overflow-y: auto;
  margin-top: var(--space-md);
}

.lab-feedback {
  background: var(--color-surface);
  border: 2px solid var(--cyber-success);
  border-radius: var(--radius-base);
  padding: var(--space-md);
  margin-top: var(--space-md);
}

.lab-feedback.error {
  border-color: var(--cyber-error);
}

.lab-feedback.success {
  border-color: var(--cyber-success);
}

.feedback-content h4 {
  color: var(--color-text);
  margin: 0 0 var(--space-sm) 0;
  font-size: var(--text-base);
}

.feedback-content p {
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-sm) 0;
  line-height: 1.5;
}

.feedback-explanation {
  background: var(--color-bg-3);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.lab-hints {
  margin-top: var(--space-md);
}

.hint-content {
  background: var(--color-bg-2);
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.payload-example {
  background: var(--color-charcoal-800);
  color: var(--color-teal-300);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  margin: var(--space-sm) 0;
  overflow-x: auto;
}

.exploit-result {
  background: var(--lab-vulnerable);
  border: 2px solid var(--cyber-error);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  margin-top: var(--space-md);
  color: var(--color-text);
}

.exploit-result.success {
  background: var(--lab-secure);
  border-color: var(--cyber-success);
}

/* Modals - Mobile first, full screen on small devices */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: var(--space-md);
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 32rem;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalSlideIn 0.2s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-1.25rem);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-card-border-inner);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  background-color: lightcyan;
}

.modal-title {
  color: darkblue;
  font-size: var(--text-lg);
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  flex: 1;
  padding-right: var(--space-sm);
}

.close-button {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: var(--text-xl);
  cursor: pointer;
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-standard);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
  flex-shrink: 0;
}

.close-button:hover,
.close-button:focus {
  background: var(--color-secondary);
  color: var(--color-text);
  outline: none;
}

.modal-body {
  padding: var(--space-md);
  overflow-y: auto;
  background-color: linear-gradient(to right top, #d5fefd, #e0fdff, #effbff, #fbfaff, #fffcff);
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* Lab info modal specific */
.lab-objective,
.lab-description,
.lab-learning-goals {
  margin-bottom: var(--space-md);
}

.lab-objective h4,
.lab-description h4,
.lab-learning-goals h4 {
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
}

.lab-objective p,
.lab-description p {
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

.lab-learning-goals ul {
  color: var(--color-text-secondary);
  margin: 0;
  padding-left: var(--space-md);
  line-height: 1.6;
}

/* Demo accounts */
.demo-accounts {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-card-border-inner);
}

.demo-accounts h4 {
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
}

.demo-accounts p {
  color: var(--color-text-secondary);
  margin: var(--space-xs) 0;
  font-family: var(--font-family-mono);
  font-size: var(--text-xs);
  line-height: 1.4;
}

/* Toast */
.toast {
  position: fixed;
  top: 5rem;
  left: var(--space-md);
  right: var(--space-md);
  background: var(--color-success);
  color: var(--color-btn-primary-text);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  text-align: center;
  animation: toastSlideIn 0.3s ease-out;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
}

.toast.hidden {
  display: none;
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateY(-1.25rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Completion status */
.lab-completed {
  color: var(--cyber-success);
  font-weight: var(--font-weight-semibold);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  margin-top: var(--space-sm);
}

/* Tablet Styles - 576px and up */
@media (min-width: 36rem) {
  .container {
    padding: 0 var(--space-lg);
  }

  .brand-tagline {
    display: block;
  }

  .hero-section {
    margin: var(--space-md) var(--space-lg) var(--space-xl) var(--space-lg);
  }

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    max-width: 24rem;
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    flex-direction: row;
    max-width: none;
  }

  .featured-grid,
  .categories-grid,
  .steps-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .all-labs-grid,
  .progress-categories {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .progress-stats,
  .leaderboard-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
  }

  .category-header,
  .lab-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .category-footer,
  .lab-footer {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .labs-filters {
    flex-direction: row;
    justify-content: center;
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
  }

  .modal-actions {
    flex-direction: row;
    gap: var(--space-md);
  }

  .toast {
    right: var(--space-lg);
    left: auto;
    max-width: 25rem;
  }
}

/* Desktop Styles - 768px and up */
@media (min-width: 48rem) {
  .container {
    max-width: var(--container-lg);
  }

  .mobile-menu-btn {
    display: none;
  }

  .nav-links {
            display: inline-block;
    gap: 10px
  ;
  }

  .nav-link {
    color: brown;
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) var(--ease-standard);
    touch-action: manipulation;
  }

  .nav-link:hover,
  .nav-link:focus,
  .nav-link.active {
    color: darkblue;
    background: var(--color-bg-1);
    outline: none;
  }

  .nav-auth {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }

  .user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-md);
  }

  .user-name {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
  }

  .mobile-nav-overlay {
    display: none !important;
  }

  .featured-grid,
  .categories-grid,
  .steps-grid,
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .all-labs-grid,
  .progress-categories {
    grid-template-columns: repeat(3, 1fr);
  }

  .progress-circle {
    width: 5rem;
    height: 5rem;
  }

  .progress-circle::before {
    width: 3.75rem;
    height: 3.75rem;
  }

  .progress-percentage {
    font-size: var(--text-lg);
  }

  .lab-modal-content {
    max-width: 70rem;
  }
}

/* Large Desktop Styles - 1024px and up */
@media (min-width: 64rem) {
  .container {
    max-width: var(--container-xl);
  }

  .categories-grid,
  .all-labs-grid,
  .progress-categories {
    grid-template-columns: repeat(4, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .navbar {
    padding: ;
  }

  .nav-links {
    gap: var(--space-xl);
  }

  .lab-modal-content {
    max-width: 80rem;
  }
}

/* Extra Large Desktop - 1280px and up */
@media (min-width: 80rem) {
  .hero-section {
    margin: var(--space-lg) 0 var(--space-xl) 0;
  }

  .categories-grid,
  .all-labs-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Touch and hover support */
@media (hover: none) and (pointer: coarse) {
  .btn,
  .nav-link,
  .mobile-nav-link,
  .category-card,
  .featured-card,
  .lab-card,
  .mobile-menu-btn,
  .mobile-nav-close,
  .close-button {
    min-height: 2.75rem;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .severity-badge,
  .difficulty-badge {
    border-width: 2px;
  }
  
  .progress-bar {
    border: 1px solid var(--color-border);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* Print styles */
@media print {
  .mobile-nav-overlay,
  .mobile-menu-btn,
  .nav-auth,
  .hero-actions,
  .modal,
  .toast {
    display: none !important;
  }
  
  .hero-section {
    background: none !important;
    border: 1px solid #ddd;
  }
}