: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: 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 {
    /* 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: 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), 0.2);
    --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: 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');
}

/* END PERPLEXITY DESIGN SYSTEM */
/* EduTrack Production - Enterprise Educational Management Platform Styles */

/* Additional Enterprise Design System Variables */
:root {
  /* Layout Variables */
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 70px;
  --header-height: 70px;
  --mobile-breakpoint: 768px;
  
  /* Advanced Shadows */
  --shadow-enterprise: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-floating: 0 35px 60px -12px rgba(0, 0, 0, 0.25);
  --shadow-modal: 0 50px 100px -20px rgba(0, 0, 0, 0.50);
  --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  
  /* Enterprise Colors */
  --gradient-primary: linear-gradient(135deg, var(--color-teal-500) 0%, var(--color-teal-600) 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  --gradient-ai: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  
  /* Animation Variables */
  --transition-fast: 0.15s cubic-bezier(0.4, 0.0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
  --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Dark Mode Adjustments */
[data-color-scheme="dark"] {
  --shadow-enterprise: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  --shadow-floating: 0 35px 60px -12px rgba(0, 0, 0, 0.6);
  --shadow-modal: 0 50px 100px -20px rgba(0, 0, 0, 0.8);
  --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

/* Login Screen Enhancements */
.login-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity var(--transition-slow);
}

.login-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.login-container {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-floating);
  padding: var(--space-32);
  width: 100%;
  max-width: 480px;
  margin: var(--space-16);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

[data-color-scheme="dark"] .login-container {
  background: rgba(31, 33, 33, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-large {
  text-align: center;
  margin-bottom: var(--space-32);
}

.logo-large i {
  font-size: 64px;
  color: var(--color-primary);
  margin-bottom: var(--space-16);
  display: block;
}

.logo-large h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-8);
  background: var(--gradient-ai);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-form h2 {
  text-align: center;
  margin-bottom: var(--space-24);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
}

.demo-accounts {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.demo-account {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
  text-align: left;
}

.demo-account:hover {
  background: var(--color-secondary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.demo-info {
  display: flex;
  flex-direction: column;
}

.demo-role {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.demo-email {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.login-features {
  margin-top: var(--space-24);
  padding-top: var(--space-24);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-around;
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.feature-item i {
  font-size: var(--font-size-xl);
  color: var(--color-primary);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.checkbox-label input[type="checkbox"] {
  margin: 0;
}

/* Enhanced Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  transition: width var(--transition-normal);
  z-index: 1000;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-20);
  border-bottom: 1px solid var(--color-border);
  min-height: var(--header-height);
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.sidebar-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  pointer-events: none;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  opacity: 1;
  transition: opacity var(--transition-normal);
  z-index: 1;
  position: relative;
}

.sidebar.collapsed .logo {
  opacity: 0;
  pointer-events: none;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  color: white;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo-text {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: white;
}

.sidebar-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  cursor: pointer;
  padding: var(--space-8);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 1;
}

.sidebar-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
}

.sidebar.collapsed .sidebar-toggle {
  transform: rotate(180deg);
}

/* Navigation Enhancement */
.nav-list {
  list-style: none;
  padding: var(--space-16);
}

.nav-item {
  margin-bottom: var(--space-8);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-16);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  font-weight: var(--font-weight-medium);
  position: relative;
  font-size: var(--font-size-base);
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 0;
  background: var(--color-primary);
  border-radius: 0 4px 4px 0;
  transition: height var(--transition-fast);
}

.nav-link:hover {
  background: var(--color-secondary);
  color: var(--color-text);
  transform: translateX(4px);
}

.nav-link:hover::before {
  height: 60%;
}

.nav-item.active .nav-link {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 8px 25px rgba(var(--color-teal-500-rgb), 0.3);
  transform: translateX(4px);
}

.nav-item.active .nav-link::before {
  height: 100%;
  background: rgba(255, 255, 255, 0.3);
}

.sidebar.collapsed .nav-link span {
  opacity: 0;
  pointer-events: none;
}

.sidebar.collapsed .nav-link {
  justify-content: center;
  padding: var(--space-16);
}

/* Main Content Layout */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition-normal);
  background: var(--color-background);
}

.sidebar.collapsed ~ .main-content {
  margin-left: var(--sidebar-collapsed-width);
}

/* Enhanced Header */
.header {
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-32);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-24);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-8);
  border-radius: var(--radius-base);
}

.breadcrumb {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.ai-status {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  background: var(--color-bg-3);
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-success);
}

.ai-status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); }
}

.real-time-stats {
  display: flex;
  gap: var(--space-20);
  padding: var(--space-12) var(--space-16);
  background: var(--color-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.header-btn {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-12);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-btn:hover {
  background: var(--color-secondary);
  color: var(--color-text);
  transform: translateY(-2px);
}

.ai-chat-toggle {
  background: var(--gradient-ai);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.ai-chat-toggle:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.ai-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 8px;
  height: 8px;
  background: #ec4899;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* Enhanced Profile */
.profile-btn {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

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

.profile-avatar {
  width: 45px;
  height: 45px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.profile-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.profile-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  font-size: var(--font-size-base);
}

.profile-role {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Enhanced Dropdowns */
.notifications-panel,
.profile-panel {
  position: absolute;
  top: calc(100% + var(--space-12));
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-floating);
  backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
  transition: all var(--transition-normal) var(--bounce);
  z-index: 1000;
  overflow: hidden;
}

.notifications-panel {
  width: 380px;
  max-height: 500px;
}

.profile-panel {
  width: 250px;
}

.notifications-panel.show,
.profile-panel.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.notifications-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-20);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-1);
}

.notifications-list {
  max-height: 400px;
  overflow-y: auto;
  padding: var(--space-12);
}

.profile-link {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12) var(--space-20);
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.profile-link:hover {
  background: var(--color-secondary);
  color: var(--color-text);
}

.profile-divider {
  margin: var(--space-8) 0;
  border: none;
  border-top: 1px solid var(--color-border);
}

/* Content Sections */
.content-section {
  display: none;
  padding: var(--space-32);
  flex: 1;
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-normal);
  background: var(--color-background);
}

.content-section.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.section-header {
  margin-bottom: var(--space-32);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-16);
}

.section-header .header-content h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
  background: var(--gradient-ai);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header .header-content p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xl);
  margin: 0;
}

/* Real-time Metrics Enhancement */
.realtime-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.metric-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: var(--space-16);
  cursor: pointer;
}

.metric-card.clickable:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-floating);
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.metric-icon {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: var(--font-size-3xl);
}

.metric-icon.success { background: var(--color-bg-3); color: var(--color-success); }
.metric-icon.info { background: var(--color-bg-1); color: #3b82f6; }
.metric-icon.warning { background: var(--color-bg-2); color: var(--color-warning); }
.metric-icon.primary { background: var(--color-bg-5); color: #6366f1; }

.metric-content {
  flex: 1;
}

.metric-value {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  line-height: 1;
  margin-bottom: var(--space-4);
}

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

.metric-trend {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-base);
  margin-top: var(--space-8);
}

.metric-trend.positive {
  color: var(--color-success);
  background: var(--color-bg-3);
}

/* AI Insights Enhancement */
.ai-insights-section {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

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

.insight-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(168, 85, 247, 0.05) 100%);
  pointer-events: none;
}

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

.insight-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-16);
  position: relative;
  z-index: 1;
}

.insight-header h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.confidence-score,
.risk-count {
  background: var(--color-bg-3);
  color: var(--color-success);
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.insight-card.warning .risk-count {
  background: var(--color-bg-2);
  color: var(--color-warning);
}

.insight-content {
  position: relative;
  z-index: 1;
}

.forecast-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.forecast-period {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-16);
}

.insight-actions {
  display: flex;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.risk-students {
  margin-bottom: var(--space-16);
}

.risk-student {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-12);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-8);
}

.risk-score {
  background: var(--color-bg-4);
  color: var(--color-error);
  padding: var(--space-2) var(--space-8);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

/* Charts Enhancement */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-24);
  margin-bottom: var(--space-32);
}

.chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all var(--transition-normal);
}

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

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-20) var(--space-24);
  border-bottom: 1px solid var(--color-card-border-inner);
  background: var(--color-bg-1);
}

.chart-header h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.chart-controls {
  display: flex;
  gap: var(--space-12);
  align-items: center;
}

.chart-select {
  min-width: 140px;
}

.chart-container {
  padding: var(--space-20);
}

/* Quick Actions Panel */
.quick-actions-panel {
  margin-bottom: var(--space-32);
}

.quick-actions-panel h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-20);
}

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

.quick-action-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-12);
  text-align: center;
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

.quick-action-btn:hover {
  background: var(--color-secondary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.quick-action-btn i {
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
}

/* Student Management Enhancement */
.students-controls {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  margin-bottom: var(--space-24);
  box-shadow: var(--shadow-card);
}

.search-section {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  margin-bottom: var(--space-16);
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 300px;
}

.search-box i {
  position: absolute;
  left: var(--space-16);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  z-index: 1;
}

.search-box input {
  padding-left: var(--space-32);
  width: 100%;
}

.search-clear {
  position: absolute;
  right: var(--space-12);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-4);
  border-radius: var(--radius-sm);
}

.filter-controls {
  display: flex;
  gap: var(--space-12);
  align-items: center;
}

.bulk-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-bg-1);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-base);
  padding: var(--space-12) var(--space-16);
}

.bulk-info {
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
}

.bulk-controls {
  display: flex;
  gap: var(--space-8);
}

.students-dashboard {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.data-table {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  text-align: left;
  padding: var(--space-16) var(--space-20);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.table th {
  background: var(--color-bg-1);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.table-student {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.table-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.table-student-info h4 {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-base);
}

.table-student-info p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.table-actions {
  display: flex;
  gap: var(--space-8);
}

.table-action {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-8);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
}

.table-action:hover {
  background: var(--color-secondary);
  color: var(--color-text);
  transform: scale(1.1);
}

.select-checkbox {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.pagination-controls {
  display: flex;
  align-items: center;
  justify-content: between;
  padding: var(--space-16) var(--space-24);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-1);
}

/* Course Builder Enhancement */
.course-tabs,
.lms-tabs,
.analytics-tabs,
.settings-tabs {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-24);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 0 var(--space-20);
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  padding: var(--space-16) var(--space-20);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

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

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background: var(--color-bg-1);
}

.tab-content {
  display: none;
  animation: fadeIn var(--transition-normal);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding: var(--space-24);
}

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

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

/* Course Cards */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: var(--space-24);
}

.course-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-floating);
}

.course-header {
  background: var(--gradient-primary);
  padding: var(--space-24);
  color: white;
  position: relative;
}

.course-code {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
}

.course-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-8);
}

.course-instructor {
  font-size: var(--font-size-base);
  opacity: 0.9;
}

.course-body {
  padding: var(--space-24);
}

.course-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-16);
  margin-bottom: var(--space-20);
}

.course-stat {
  text-align: center;
  padding: var(--space-12);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
}

.course-stat-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.course-stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.course-actions {
  display: flex;
  gap: var(--space-8);
}

/* Course Builder Interface */
.course-builder-interface {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-24);
  min-height: 600px;
}

.builder-sidebar {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  box-shadow: var(--shadow-card);
}

.builder-sidebar h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-16);
}

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

.element-item {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12);
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  cursor: grab;
  transition: all var(--transition-fast);
}

.element-item:hover {
  background: var(--color-secondary-hover);
  transform: translateX(4px);
}

.element-item:active {
  cursor: grabbing;
}

.builder-canvas {
  background: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 600px;
  position: relative;
}

.canvas-placeholder {
  text-align: center;
  color: var(--color-text-secondary);
}

.canvas-placeholder i {
  font-size: 64px;
  margin-bottom: var(--space-16);
}

/* LMS Features */
.assignments-dashboard {
  padding: var(--space-24);
}

.assignments-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-24);
  flex-wrap: wrap;
  gap: var(--space-16);
}

.assignment-stats {
  display: flex;
  gap: var(--space-24);
}

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

.assignment-stats .stat-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

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

.assignments-controls {
  display: flex;
  gap: var(--space-12);
  margin-bottom: var(--space-24);
  flex-wrap: wrap;
}

.assignments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-20);
}

.assignment-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-card);
}

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

.assignment-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.assignment-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-12);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.assignment-progress {
  margin-bottom: var(--space-16);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-8);
}

.progress-fill {
  height: 100%;
  background: var(--gradient-success);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

.progress-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  display: flex;
  justify-content: space-between;
}

.assignment-actions {
  display: flex;
  gap: var(--space-8);
}

/* Analytics Enhancement */
.analytics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-24);
}

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

.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: var(--space-16);
  transition: all var(--transition-normal);
}

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

.kpi-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-3);
  color: var(--color-success);
  font-size: var(--font-size-2xl);
}

.kpi-content {
  flex: 1;
}

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

.kpi-label {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.kpi-change {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-base);
}

.kpi-change.positive {
  color: var(--color-success);
  background: var(--color-bg-3);
}

/* AI Assistant Enhancement */
.ai-dashboard {
  display: grid;
  gap: var(--space-24);
}

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

.ai-metric-card {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-5) 100%);
  border: 2px solid transparent;
  border-image: var(--gradient-ai) 1;
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  display: flex;
  align-items: center;
  gap: var(--space-16);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.ai-metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-floating);
}

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

.ai-feature-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  box-shadow: var(--shadow-card);
}

.ai-feature-panel h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-16);
}

.recommendation-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.recommendation-item {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12);
  background: var(--color-secondary);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
}

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

.recommendation-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-ai);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.recommendation-content {
  flex: 1;
}

.recommendation-title {
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.recommendation-reason {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.analysis-dashboard {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.analysis-metric {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.analysis-label {
  min-width: 140px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.analysis-value {
  min-width: 80px;
  text-align: right;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

/* Communications Enhancement */
.communications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-24);
}

.comm-feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  text-align: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-card);
}

.comm-feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-floating);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-20);
  background: var(--color-bg-1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--font-size-5xl);
}

.comm-feature-card h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-12);
}

.comm-feature-card p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-20);
}

.feature-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-32);
  margin-bottom: var(--space-20);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

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

/* Report Builder Enhancement */
.report-builder-interface {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-24);
  min-height: 600px;
}

.report-sidebar {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  box-shadow: var(--shadow-card);
}

.elements-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

.element-category h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

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

.report-element {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12);
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  cursor: grab;
  transition: all var(--transition-fast);
}

.report-element:hover {
  background: var(--color-secondary-hover);
  transform: translateX(4px);
}

.report-canvas {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.canvas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-16) var(--space-24);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-1);
}

.report-title-input {
  border: none;
  background: transparent;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  flex: 1;
}

.canvas-controls {
  display: flex;
  gap: var(--space-8);
}

.canvas-content {
  min-height: 500px;
  padding: var(--space-24);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Settings Enhancement */
.settings-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  box-shadow: var(--shadow-card);
}

.settings-section {
  margin-bottom: var(--space-32);
}

.settings-section h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-20);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-border);
}

.setting-item {
  margin-bottom: var(--space-20);
}

.setting-label {
  display: block;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.theme-options {
  display: flex;
  gap: var(--space-16);
}

.theme-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-16);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-option.active {
  border-color: var(--color-primary);
  background: var(--color-bg-1);
}

.theme-preview {
  width: 50px;
  height: 30px;
  border-radius: var(--radius-sm);
}

.theme-preview.light {
  background: linear-gradient(135deg, #ffffff 50%, #f3f4f6 50%);
}

.theme-preview.dark {
  background: linear-gradient(135deg, #1f2937 50%, #374151 50%);
}

.theme-preview.auto {
  background: linear-gradient(135deg, #ffffff 25%, #1f2937 25%, #1f2937 50%, #ffffff 50%, #ffffff 75%, #1f2937 75%);
}

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

.radio-label {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  cursor: pointer;
  font-size: var(--font-size-base);
}

/* Security Enhancement */
.security-dashboard {
  display: grid;
  gap: var(--space-32);
}

.security-overview {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-32);
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  box-shadow: var(--shadow-card);
}

.security-score {
  display: flex;
  align-items: center;
  justify-content: center;
}

.score-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: conic-gradient(var(--color-success) 0deg 352deg, var(--color-secondary) 352deg 360deg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.score-circle::before {
  content: '';
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-surface);
}

.score-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  z-index: 1;
}

.score-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  z-index: 1;
}

.security-status {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.status-item {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12);
  border-radius: var(--radius-base);
}

.status-item.active {
  background: var(--color-bg-3);
  color: var(--color-success);
}

.status-item.warning {
  background: var(--color-bg-2);
  color: var(--color-warning);
}

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

.security-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  text-align: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-card);
}

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

.security-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto var(--space-16);
  background: var(--color-bg-3);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-success);
  font-size: var(--font-size-3xl);
}

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

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

.security-stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-secondary);
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-16);
}

.security-stat .stat-value {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

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

/* AI Chat Widget */
.ai-chat-widget {
  position: fixed;
  bottom: var(--space-24);
  right: var(--space-24);
  width: 400px;
  height: 600px;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-floating);
  display: flex;
  flex-direction: column;
  z-index: 9999;
  transform: translateY(100%);
  opacity: 0;
  transition: all var(--transition-normal) var(--bounce);
}

.ai-chat-widget.show {
  transform: translateY(0);
  opacity: 1;
}

.ai-chat-header {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-16);
  background: var(--gradient-ai);
  color: white;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.ai-avatar {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
}

.ai-info {
  flex: 1;
}

.ai-info h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
}

.ai-status {
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

.ai-chat-close {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: white;
  cursor: pointer;
  padding: var(--space-8);
  border-radius: var(--radius-base);
  transition: background var(--transition-fast);
}

.ai-chat-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.ai-chat-messages {
  flex: 1;
  padding: var(--space-16);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.ai-message {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.message-content {
  background: var(--color-bg-1);
  padding: var(--space-12) var(--space-16);
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--radius-sm);
  max-width: 85%;
}

.user-message .message-content {
  background: var(--gradient-ai);
  color: white;
  margin-left: auto;
  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-sm) var(--radius-lg);
}

.message-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  align-self: flex-start;
}

.user-message .message-time {
  align-self: flex-end;
}

.ai-chat-input {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-16);
  border-top: 1px solid var(--color-border);
}

.ai-chat-input input {
  flex: 1;
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: var(--space-12);
  font-size: var(--font-size-base);
}

.ai-send-btn {
  background: var(--gradient-ai);
  border: none;
  color: white;
  cursor: pointer;
  padding: var(--space-12);
  border-radius: var(--radius-base);
  transition: transform var(--transition-fast);
}

.ai-send-btn:hover {
  transform: scale(1.05);
}

.ai-suggestions {
  display: flex;
  gap: var(--space-8);
  padding: var(--space-12) var(--space-16);
  overflow-x: auto;
}

.suggestion-chip {
  background: var(--color-secondary);
  color: var(--color-text);
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

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

/* Modal Enhancement */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.hidden {
  opacity: 0;
  visibility: hidden;
}

.modal:not(.hidden) {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  max-width: 600px;
  max-height: 90vh;
  width: 90%;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-20) var(--space-24);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-1);
}

.modal-header h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-8);
  border-radius: var(--radius-base);
}

.modal-body {
  padding: var(--space-24);
  max-height: 60vh;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-12);
  padding: var(--space-20) var(--space-24);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-1);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
}

.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-12);
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  text-align: center;
  color: white;
}

.spinner-ring {
  width: 80px;
  height: 80px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  margin: 0 auto var(--space-16);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-8);
}

.loading-subtitle {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.8);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: var(--space-20);
  right: var(--space-20);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.toast {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-16);
  box-shadow: var(--shadow-floating);
  min-width: 300px;
  display: flex;
  align-items: center;
  gap: var(--space-12);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.toast.show {
  transform: translateX(0);
}

.toast.success { border-left: 4px solid var(--color-success); }
.toast.error { border-left: 4px solid var(--color-error); }
.toast.warning { border-left: 4px solid var(--color-warning); }
.toast.info { border-left: 4px solid var(--color-primary); }

/* Responsive Design */
@media (max-width: 1400px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
  
  .ai-insights-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1200px) {
  .realtime-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .financial-kpis {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .analytics-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 280px;
  }
  
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
  }
  
  .sidebar.mobile-open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .header {
    padding: 0 var(--space-16);
  }
  
  .header-left {
    gap: var(--space-12);
  }
  
  .breadcrumb {
    font-size: var(--font-size-lg);
  }
  
  .real-time-stats {
    display: none;
  }
  
  .profile-info {
    display: none;
  }
  
  .content-section {
    padding: var(--space-16);
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .section-header .header-content h1 {
    font-size: var(--font-size-4xl);
  }
  
  .realtime-metrics {
    grid-template-columns: 1fr;
  }
  
  .courses-grid {
    grid-template-columns: 1fr;
  }
  
  .financial-kpis {
    grid-template-columns: 1fr;
  }
  
  .communications-grid {
    grid-template-columns: 1fr;
  }
  
  .security-features {
    grid-template-columns: 1fr;
  }
  
  .ai-chat-widget {
    width: calc(100vw - var(--space-32));
    height: 500px;
    right: var(--space-16);
    bottom: var(--space-16);
  }
  
  .course-builder-interface,
  .report-builder-interface {
    grid-template-columns: 1fr;
  }
  
  .search-section {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-box {
    min-width: auto;
  }
  
  .filter-controls {
    flex-wrap: wrap;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .ai-status {
    display: none;
  }
  
  .header-actions {
    gap: var(--space-8);
  }
  
  .metric-card {
    flex-direction: column;
    text-align: center;
  }
  
  .insight-actions {
    flex-direction: column;
  }
  
  .course-actions,
  .assignment-actions {
    flex-direction: column;
  }
  
  .assignments-controls {
    flex-direction: column;
  }
  
  .bulk-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-12);
  }
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .ai-status-indicator {
    animation: none;
  }
  
  .pulse,
  .ai-badge {
    animation: none;
  }
  
  .spinner-ring {
    animation: none;
  }
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 10000;
}

.skip-link:focus {
  top: 6px;
}

@media (prefers-contrast: high) {
  :root {
    --color-border: #000;
    --color-text-secondary: var(--color-text);
  }
  
  .metric-card,
  .chart-card,
  .insight-card {
    border-width: 2px;
  }
}

/* Print Styles */
@media print {
  .sidebar,
  .header,
  .loading-overlay,
  .ai-chat-widget,
  .modal {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0 !important;
  }
  
  .content-section {
    display: block !important;
    opacity: 1 !important;
    transform: none !important;
    padding: 0 !important;
  }
  
  .chart-card,
  .metric-card,
  .insight-card {
    break-inside: avoid;
    box-shadow: none !important;
  }
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-secondary);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}