/**
 * MySovereignty Community Platform - Design System
 * Version: 1.0.0
 *
 * A comprehensive, modern design system ensuring consistent UX/UI across
 * the entire Community platform. Built with accessibility, responsiveness,
 * and maintainability as core principles.
 *
 * Structure:
 * 1. CSS Variables (Design Tokens)
 * 2. Reset & Base Styles
 * 3. Typography System
 * 4. Layout & Spacing
 * 5. Components
 * 6. Utilities
 * 7. Responsive Breakpoints
 * 8. Dark Mode (optional)
 */

/* Alpine.js x-cloak - Hide elements until Alpine is ready */
[x-cloak] {
  display: none !important;
}

/* ============================================================================
   1. CSS VARIABLES (DESIGN TOKENS)
   ============================================================================ */

:root {
  /* Color Palette - Primary */
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-200: #bfdbfe;
  --color-primary-300: #93c5fd;
  --color-primary-400: #60a5fa;
  --color-primary-500: #3b82f6;
  --color-primary-600: #2563eb;
  --color-primary-700: #1d4ed8;
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;

  /* Color Palette - Secondary (Purple/Indigo) */
  --color-secondary-50: #eef2ff;
  --color-secondary-100: #e0e7ff;
  --color-secondary-200: #c7d2fe;
  --color-secondary-300: #a5b4fc;
  --color-secondary-400: #818cf8;
  --color-secondary-500: #6366f1;
  --color-secondary-600: #4f46e5;
  --color-secondary-700: #4338ca;
  --color-secondary-800: #3730a3;
  --color-secondary-900: #312e81;

  /* Color Palette - Accent (Teal/Cyan) */
  --color-accent-50: #f0fdfa;
  --color-accent-100: #ccfbf1;
  --color-accent-200: #99f6e4;
  --color-accent-300: #5eead4;
  --color-accent-400: #2dd4bf;
  --color-accent-500: #14b8a6;
  --color-accent-600: #0d9488;
  --color-accent-700: #0f766e;
  --color-accent-800: #115e59;
  --color-accent-900: #134e4a;

  /* Neutral Colors */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Semantic Colors */
  --color-success-50: #f0fdf4;
  --color-success-100: #dcfce7;
  --color-success-500: #22c55e;
  --color-success-600: #16a34a;
  --color-success-700: #15803d;

  --color-warning-50: #fffbeb;
  --color-warning-100: #fef3c7;
  --color-warning-500: #f59e0b;
  --color-warning-600: #d97706;
  --color-warning-700: #b45309;

  --color-error-50: #fef2f2;
  --color-error-100: #fee2e2;
  --color-error-500: #ef4444;
  --color-error-600: #dc2626;
  --color-error-700: #b91c1c;

  --color-info-50: #eff6ff;
  --color-info-100: #dbeafe;
  --color-info-500: #3b82f6;
  --color-info-600: #2563eb;
  --color-info-700: #1d4ed8;

  /* Base Colors */
  --color-white: #ffffff;
  --color-black: #000000;

  /* Contextual Colors */
  --color-bg-primary: var(--color-white);
  --color-bg-secondary: var(--color-gray-100);
  --color-bg-tertiary: var(--color-gray-200);
  --color-text-primary: var(--color-gray-900);
  --color-text-secondary: var(--color-gray-600);
  --color-text-tertiary: var(--color-gray-500);
  --color-border-default: var(--color-gray-300);
  --color-border-subtle: var(--color-gray-100);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', 'Arial', sans-serif;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --font-mono: 'SFMono-Regular', 'Consolas', 'Liberation Mono', 'Menlo', monospace;

  /* Font Sizes (with fluid scaling) */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Spacing Scale (4px base) */
  --spacing-0: 0;
  --spacing-1: 0.25rem;    /* 4px */
  --spacing-2: 0.5rem;     /* 8px */
  --spacing-3: 0.75rem;    /* 12px */
  --spacing-4: 1rem;       /* 16px */
  --spacing-5: 1.25rem;    /* 20px */
  --spacing-6: 1.5rem;     /* 24px */
  --spacing-8: 2rem;       /* 32px */
  --spacing-10: 2.5rem;    /* 40px */
  --spacing-12: 3rem;      /* 48px */
  --spacing-16: 4rem;      /* 64px */
  --spacing-20: 5rem;      /* 80px */
  --spacing-24: 6rem;      /* 96px */
  --spacing-32: 8rem;      /* 128px */

  /* Border Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-default: 0.375rem; /* 6px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-default: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Z-Index Scale */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1100;
  --z-fixed: 1200;
  --z-modal-backdrop: 1300;
  --z-modal: 1400;
  --z-popover: 1500;
  --z-tooltip: 1600;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;

  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;

  /* Responsive Breakpoints (for reference) */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* ============================================================================
   2. RESET & BASE STYLES
   ============================================================================ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
  min-height: 100vh;
}

/* ============================================================================
   3. TYPOGRAPHY SYSTEM
   ============================================================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-4);
}

h1 {
  font-size: var(--text-4xl);
  letter-spacing: -0.025em;
}

h2 {
  font-size: var(--text-3xl);
  letter-spacing: -0.025em;
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

h5 {
  font-size: var(--text-lg);
}

h6 {
  font-size: var(--text-base);
}

p {
  margin-bottom: var(--spacing-4);
  line-height: var(--leading-relaxed);
}

a {
  color: var(--color-primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-700);
}

a:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

strong, b {
  font-weight: var(--font-weight-semibold);
}

em, i {
  font-style: italic;
}

small {
  font-size: var(--text-sm);
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.125rem 0.375rem;
  background-color: var(--color-gray-100);
  border-radius: var(--radius-sm);
  color: var(--color-gray-800);
}

pre {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  padding: var(--spacing-4);
  background-color: var(--color-gray-900);
  color: var(--color-gray-100);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--spacing-4);
}

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

/* ============================================================================
   4. LAYOUT & SPACING
   ============================================================================ */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--spacing-6);
    padding-right: var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--spacing-8);
    padding-right: var(--spacing-8);
  }
}

.section {
  padding-top: var(--spacing-16);
  padding-bottom: var(--spacing-16);
}

/* ============================================================================
   5. COMPONENTS
   ============================================================================ */

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--leading-tight);
  text-align: center;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Variants */

.btn-primary {
  background-color: var(--color-primary-600);
  color: var(--color-white);
  border-color: var(--color-primary-600);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-700);
  border-color: var(--color-primary-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-secondary-600);
  color: var(--color-white);
  border-color: var(--color-secondary-600);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-secondary-700);
  border-color: var(--color-secondary-700);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary-700);
  border-color: var(--color-primary-600);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-primary-50);
  color: var(--color-primary-800);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-gray-700);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-gray-100);
  color: var(--color-gray-900);
}

.btn-danger {
  background-color: var(--color-error-600);
  color: var(--color-white);
  border-color: var(--color-error-600);
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--color-error-700);
  border-color: var(--color-error-700);
}

.btn-success {
  background-color: var(--color-success-600);
  color: var(--color-white);
  border-color: var(--color-success-600);
}

.btn-success:hover:not(:disabled) {
  background-color: var(--color-success-700);
  border-color: var(--color-success-700);
}

/* Button Sizes */

.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--text-lg);
}

.btn-icon {
  padding: var(--spacing-2);
  aspect-ratio: 1;
}

.btn-block {
  width: 100%;
}

/* ---- Cards ---- */

.card {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-base);
}

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

.card-header {
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--color-border-default);
}

.card-body {
  padding: var(--spacing-6);
}

.card-footer {
  padding: var(--spacing-6);
  border-top: 1px solid var(--color-border-default);
  background-color: var(--color-bg-secondary);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.card-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.card-interactive {
  cursor: pointer;
}

.card-interactive:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-300);
}

/* ---- Forms ---- */

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.form-label-required::after {
  content: " *";
  color: var(--color-error-500);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

/* Select dropdown: Remove native arrow and add custom one */
.form-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: var(--spacing-10); /* Extra padding for custom arrow */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236B7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right var(--spacing-3) center;
  background-size: 1.25rem 1.25rem;
  background-repeat: no-repeat;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
  opacity: 0.6;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-tertiary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-helper {
  display: block;
  margin-top: var(--spacing-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.form-error {
  display: block;
  margin-top: var(--spacing-2);
  font-size: var(--text-sm);
  color: var(--color-error-600);
}

.form-input-error {
  border-color: var(--color-error-500);
}

.form-input-error:focus {
  border-color: var(--color-error-500);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Checkbox & Radio */

.form-check {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.form-check-input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-primary-600);
  cursor: pointer;
}

.form-check-label {
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  cursor: pointer;
}

/* ---- Navigation ---- */

.nav {
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border-default);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
  padding: 0 var(--spacing-4);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.nav-brand-logo {
  height: 2rem;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
  list-style: none;
}

.nav-link {
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-default);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background-color: var(--color-bg-secondary);
}

.nav-link-active {
  color: var(--color-primary-600);
  background-color: var(--color-primary-50);
}

.nav-link-active:hover {
  color: var(--color-primary-700);
}

/* Mobile Menu Toggle */

.nav-toggle {
  display: none;
  padding: var(--spacing-2);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
  }

  .nav-menu-mobile {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    padding: var(--spacing-4);
    border-top: 1px solid var(--color-border-default);
  }

  .nav-menu-mobile .nav-link {
    width: 100%;
    text-align: left;
  }
}

/* ---- Modals ---- */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  animation: fadeIn var(--transition-base);
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  overflow: hidden;
  animation: slideUp var(--transition-base);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--color-border-default);
}

.modal-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.modal-close {
  padding: var(--spacing-2);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  border-radius: var(--radius-default);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--color-gray-100);
  color: var(--color-text-primary);
}

.modal-body {
  padding: var(--spacing-6);
  overflow-y: auto;
  max-height: calc(90vh - 160px);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-3);
  padding: var(--spacing-6);
  border-top: 1px solid var(--color-border-default);
  background-color: var(--color-bg-secondary);
}

/* ---- Alerts / Toasts ---- */

.alert {
  padding: var(--spacing-4) var(--spacing-6);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: var(--spacing-4);
}

.alert-info {
  background-color: var(--color-info-50);
  border-color: var(--color-info-500);
  color: var(--color-info-700);
}

.alert-success {
  background-color: var(--color-success-50);
  border-color: var(--color-success-500);
  color: var(--color-success-700);
}

.alert-warning {
  background-color: var(--color-warning-50);
  border-color: var(--color-warning-500);
  color: var(--color-warning-700);
}

.alert-error {
  background-color: var(--color-error-50);
  border-color: var(--color-error-500);
  color: var(--color-error-700);
}

.alert-title {
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-1);
}

/* Toast Notifications */

.toast-container {
  position: fixed;
  top: var(--spacing-4);
  right: var(--spacing-4);
  z-index: var(--z-tooltip);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  max-width: 400px;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  padding: var(--spacing-4);
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-default);
  animation: slideInRight var(--transition-base);
}

.toast-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-sm);
  margin-bottom: var(--spacing-1);
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.toast-close {
  flex-shrink: 0;
  padding: var(--spacing-1);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
}

.toast-close:hover {
  background-color: var(--color-gray-100);
}

/* ---- Badges ---- */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background-color: var(--color-primary-100);
  color: var(--color-primary-700);
}

.badge-secondary {
  background-color: var(--color-secondary-100);
  color: var(--color-secondary-700);
}

.badge-success {
  background-color: var(--color-success-100);
  color: var(--color-success-700);
}

.badge-warning {
  background-color: var(--color-warning-100);
  color: var(--color-warning-700);
}

.badge-error {
  background-color: var(--color-error-100);
  color: var(--color-error-700);
}

.badge-gray {
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
}

/* ---- Avatars ---- */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  overflow: hidden;
  background-color: var(--color-gray-200);
  color: var(--color-gray-600);
  font-weight: var(--font-weight-medium);
}

.avatar-xs {
  width: 1.5rem;
  height: 1.5rem;
  font-size: var(--text-xs);
}

.avatar-sm {
  width: 2rem;
  height: 2rem;
  font-size: var(--text-sm);
}

.avatar-md {
  width: 2.5rem;
  height: 2.5rem;
  font-size: var(--text-base);
}

.avatar-lg {
  width: 3rem;
  height: 3rem;
  font-size: var(--text-lg);
}

.avatar-xl {
  width: 4rem;
  height: 4rem;
  font-size: var(--text-xl);
}

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

/* ---- Dropdowns ---- */

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--spacing-2);
  min-width: 12rem;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  z-index: var(--z-dropdown);
  animation: slideDown var(--transition-fast);
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

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

.dropdown-divider {
  height: 1px;
  background-color: var(--color-border-default);
  margin: var(--spacing-2) 0;
}

/* ============================================================================
   6. UTILITY CLASSES
   ============================================================================ */

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-grid { display: grid; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }
.flex-1 { flex: 1; }
.flex-grow { flex-grow: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* Gap */
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Spacing - Margin */
.m-0 { margin: var(--spacing-0); }
.m-1 { margin: var(--spacing-1); }
.m-2 { margin: var(--spacing-2); }
.m-3 { margin: var(--spacing-3); }
.m-4 { margin: var(--spacing-4); }
.m-6 { margin: var(--spacing-6); }
.m-8 { margin: var(--spacing-8); }

.mt-0 { margin-top: var(--spacing-0); }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }

.mb-0 { margin-bottom: var(--spacing-0); }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Spacing - Padding */
.p-0 { padding: var(--spacing-0); }
.p-1 { padding: var(--spacing-1); }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }

.px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
.px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }
.px-8 { padding-left: var(--spacing-8); padding-right: var(--spacing-8); }

.py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }
.py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }
.py-8 { padding-top: var(--spacing-8); padding-bottom: var(--spacing-8); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Text Transform */
.text-uppercase { text-transform: uppercase; }
.text-lowercase { text-transform: lowercase; }
.text-capitalize { text-transform: capitalize; }

/* Font Weight */
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

/* Text Colors */
.text-primary { color: var(--color-primary-600); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-tertiary); }
.text-success { color: var(--color-success-600); }
.text-warning { color: var(--color-warning-600); }
.text-error { color: var(--color-error-600); }

/* Background Colors */
.bg-white { background-color: var(--color-white); }
.bg-gray-50 { background-color: var(--color-gray-50); }
.bg-gray-100 { background-color: var(--color-gray-100); }
.bg-primary { background-color: var(--color-primary-600); }
.bg-secondary { background-color: var(--color-secondary-600); }

/* Border Radius */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-default); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-default); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-none { box-shadow: none; }

/* Width & Height */
.w-full { width: 100%; }
.w-auto { width: auto; }
.h-full { height: 100%; }
.h-auto { height: auto; }

/* Min/Max Width */
.max-w-sm { max-width: var(--container-sm); }
.max-w-md { max-width: var(--container-md); }
.max-w-lg { max-width: var(--container-lg); }
.max-w-xl { max-width: var(--container-xl); }
.max-w-full { max-width: 100%; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Position */
.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }
.position-sticky { position: sticky; }

/* ============================================================================
   7. ANIMATIONS
   ============================================================================ */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translate(-50%, -40%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

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

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ============================================================================
   8. RESPONSIVE UTILITIES
   ============================================================================ */

/* Hide/Show on Mobile */
@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 768px) {
  .show-mobile { display: none !important; }
}

/* Responsive Grid */
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Responsive Table Cells */
@media (min-width: 640px) {
  .sm\:table-cell { display: table-cell !important; }
}
@media (min-width: 768px) {
  .md\:table-cell { display: table-cell !important; }
}
@media (min-width: 1024px) {
  .lg\:table-cell { display: table-cell !important; }
}

/* Max Width utilities for truncation */
.max-w-xs { max-width: 20rem; }
.max-w-sm { max-width: 24rem; }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Table styling */
table {
  border-collapse: collapse;
}

/* Checkbox styling */
input[type="checkbox"].rounded {
  border-radius: 0.25rem;
}

/* ============================================================================
   8b. DOCUMENTS PAGE UTILITIES (Added 2025-12-01)
   Tailwind-compatible utilities for documents.html layout
   ============================================================================ */

/* Flex utilities */
.flex-shrink-0 { flex-shrink: 0; }
.flex-grow { flex-grow: 1; }
.min-w-0 { min-width: 0; }
.min-w-full { min-width: 100%; }

/* Width utilities */
.w-10 { width: 2.5rem; }
.w-16 { width: 4rem; }
.w-56 { width: 14rem; }
.w-64 { width: 16rem; }

/* Height utilities */
.h-1\.5, .h-1-5 { height: 0.375rem; }
.h-10 { height: 2.5rem; }

/* Divide utilities */
.divide-y > * + * { border-top-width: 1px; border-top-style: solid; }
.divide-gray-200 > * + * { border-color: var(--color-gray-200, #e5e7eb); }

/* Position utilities */
.sticky { position: sticky; }
.top-24 { top: 6rem; }
.inset-0 { inset: 0; }
.left-3 { left: 0.75rem; }
.top-4 { top: 1rem; }
.right-4 { right: 1rem; }
.bottom-6 { bottom: 1.5rem; }
.left-1\/2 { left: 50%; }

/* Transform utilities */
.-translate-x-1\/2 { transform: translateX(-50%); }
.-translate-y-1\/2 { transform: translateY(-50%); }
.translate-y-1\/2 { transform: translateY(50%); }

/* Overflow utilities */
.overflow-x-auto { overflow-x: auto; }
.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }

/* Whitespace utilities */
.whitespace-nowrap { white-space: nowrap; }
.whitespace-pre-wrap { white-space: pre-wrap; }

/* Z-index utilities */
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* Space utilities (gap between children) */
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-1\.5 > * + *, .space-y-1-5 > * + * { margin-top: 0.375rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }

/* Gap utilities (flexbox/grid) */
.gap-1 { gap: 0.25rem; }
.gap-1\.5, .gap-1-5 { gap: 0.375rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

/* Pointer utilities */
.pointer-events-none { pointer-events: none; }
.cursor-not-allowed { cursor: not-allowed; }

/* Object fit */
.object-contain { object-fit: contain; }

/* Border dashed */
.border-dashed { border-style: dashed; }
.border-2 { border-width: 2px; }

/* Opacity */
.opacity-50 { opacity: 0.5; }
.opacity-60 { opacity: 0.6; }

/* Font styling */
.font-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }

/* Animation */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.animate-spin { animation: spin 1s linear infinite; }

/* Focus utilities for skip links */
.focus\:not-sr-only:focus {
  position: static;
  width: auto;
  height: auto;
  padding: 0;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Large device visibility */
@media (min-width: 1024px) {
  .lg\:block { display: block !important; }
  .lg\:hidden { display: none !important; }
}

/* Small device visibility */
@media (max-width: 639px) {
  .sm\:hidden { display: none !important; }
}
@media (min-width: 640px) {
  .sm\:flex { display: flex !important; }
  .sm\:inline { display: inline !important; }
  .sm\:w-auto { width: auto !important; }
  .sm\:w-64 { width: 16rem !important; }
  .sm\:flex-initial { flex: 0 1 auto !important; }
  .sm\:m-4 { margin: 1rem !important; }
  .sm\:rounded-xl { border-radius: 0.75rem !important; }
  .sm\:max-w-6xl { max-width: 72rem !important; }
  .sm\:max-h-\[90vh\] { max-height: 90vh !important; }
}

/* Medium device table cells */
@media (max-width: 767px) {
  .hidden.md\:table-cell { display: none !important; }
}

/* Hidden on small, visible on larger */
.hidden.sm\:flex { display: none; }
@media (min-width: 640px) {
  .hidden.sm\:flex { display: flex !important; }
}
.hidden.sm\:inline { display: none; }
@media (min-width: 640px) {
  .hidden.sm\:inline { display: inline !important; }
}

/* ============================================================================
   9. ACCESSIBILITY
   ============================================================================ */

/* Screen Reader Only */
.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 for Keyboard Navigation */
*:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================================
   10. DARK MODE (OPTIONAL)
   ============================================================================ */

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-primary: var(--color-gray-900);
    --color-bg-secondary: var(--color-gray-800);
    --color-bg-tertiary: var(--color-gray-700);
    --color-text-primary: var(--color-gray-100);
    --color-text-secondary: var(--color-gray-400);
    --color-text-tertiary: var(--color-gray-500);
    --color-border-default: var(--color-gray-700);
    --color-border-subtle: var(--color-gray-800);
  }

  .card {
    background-color: var(--color-gray-800);
    border-color: var(--color-gray-700);
  }

  .form-input,
  .form-textarea,
  .form-select {
    background-color: var(--color-gray-800);
    border-color: var(--color-gray-700);
    color: var(--color-gray-100);
  }

  code {
    background-color: var(--color-gray-800);
    color: var(--color-gray-200);
  }
}

/* ============================================================================
   FOOTER COMPONENT - Responsive Grid
   ============================================================================ */

/* Footer: 4-column grid on desktop, 1-column on mobile */
footer[role="contentinfo"] .grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 2rem;
}

@media (min-width: 768px) {
  footer[role="contentinfo"] .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  footer[role="contentinfo"] .grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* Footer bottom row: stack on mobile, flex on desktop */
footer[role="contentinfo"] .flex {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 768px) {
  footer[role="contentinfo"] .flex.md\:flex-row {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* Footer link hover effects */
footer[role="contentinfo"] a:hover,
footer[role="contentinfo"] button.hover\:text-white:hover {
  color: #ffffff !important;
}

/* Contact modal responsive adjustments */
#contact-modal .max-w-lg {
  max-width: 32rem;
}

@media (max-width: 640px) {
  #contact-modal .max-w-lg {
    max-width: calc(100vw - 2rem);
    margin: 1rem;
  }
}


/* ============================================================================
   10. TAILWIND-STYLE UTILITIES (Icon & Element Sizing)
   ============================================================================ */

/* Height utilities */
.h-4 { height: 1rem; }     /* 16px */
.h-5 { height: 1.25rem; }  /* 20px */
.h-6 { height: 1.5rem; }   /* 24px */
.h-8 { height: 2rem; }     /* 32px */
.h-10 { height: 2.5rem; }  /* 40px */
.h-12 { height: 3rem; }    /* 48px */

/* Width utilities */
.w-4 { width: 1rem; }      /* 16px */
.w-5 { width: 1.25rem; }   /* 20px */
.w-6 { width: 1.5rem; }    /* 24px */
.w-8 { width: 2rem; }      /* 32px */
.w-10 { width: 2.5rem; }   /* 40px */
.w-12 { width: 3rem; }     /* 48px */

/* Flex utilities for icons */
.flex-shrink-0 { flex-shrink: 0; }
.flex-1 { flex: 1 1 0%; }

/* Margin utilities */
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-4 { margin-right: 1rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 0.75rem; }
.ml-4 { margin-left: 1rem; }

/* SVG current color */
svg { fill: currentColor; }


/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */

/* Display utilities */
.hidden {
  display: none !important;
}

.block {
  display: block !important;
}

.inline-block {
  display: inline-block !important;
}

.flex {
  display: flex !important;
}

.inline-flex {
  display: inline-flex !important;
}

.grid {
  display: grid !important;
}

/* Position utilities */
.fixed {
  position: fixed !important;
}

.absolute {
  position: absolute !important;
}

.relative {
  position: relative !important;
}

.inset-0 {
  top: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  left: 0 !important;
}

/* Z-index utilities */
.z-40 {
  z-index: 40 !important;
}

.z-50 {
  z-index: 50 !important;
}

/* Modal backdrop utilities */
.bg-black\/50 {
  background-color: rgba(0, 0, 0, 0.5) !important;
}

.bg-black\/80 {
  background-color: rgba(0, 0, 0, 0.8) !important;
}

/* Flexbox alignment utilities */
.items-center {
  align-items: center !important;
}

.items-start {
  align-items: flex-start !important;
}

.justify-center {
  justify-content: center !important;
}

.justify-between {
  justify-content: space-between !important;
}

.justify-end {
  justify-content: flex-end !important;
}

/* Transform utilities for centering */
.left-1\/2 {
  left: 50% !important;
}

.-translate-x-1\/2 {
  transform: translateX(-50%) !important;
}

.-translate-y-1\/2 {
  transform: translateY(-50%) !important;
}

/* Spacing utilities for bulk actions bar */
.bottom-6 {
  bottom: 1.5rem !important;
}

/* Width and height utilities */
.w-24 {
  width: 6rem; /* 96px */
}

.h-24 {
  height: 6rem; /* 96px */
}

.w-12 {
  width: 3rem; /* 48px */
}

.h-12 {
  height: 3rem; /* 48px */
}

.w-5 {
  width: 1.25rem; /* 20px */
}

.h-5 {
  height: 1.25rem; /* 20px */
}

.w-6 {
  width: 1.5rem; /* 24px */
}

.h-6 {
  height: 1.5rem; /* 24px */
}

/* Margin utilities */
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.mb-2 {
  margin-bottom: 0.5rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mb-6 {
  margin-bottom: 1.5rem;
}

.mr-2 {
  margin-right: 0.5rem;
}

/* Padding utilities */
.py-12 {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.px-4 {
  padding-left: 1rem;
  padding-right: 1rem;
}

.py-2 {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.px-6 {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.py-3 {
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

/* Text utilities */
.text-center {
  text-align: center;
}

.text-xl {
  font-size: 1.25rem;
  line-height: 1.75rem;
}

.text-3xl {
  font-size: 1.875rem;
  line-height: 2.25rem;
}

.font-bold {
  font-weight: 700;
}

.font-semibold {
  font-weight: 600;
}

/* Color utilities */
.text-gray-300 {
  color: #d1d5db;
}

.text-gray-500 {
  color: #6b7280;
}

.text-gray-600 {
  color: #4b5563;
}

.text-gray-700 {
  color: #374151;
}

.text-gray-900 {
  color: #111827;
}

.text-white {
  color: #ffffff;
}

.bg-blue-600 {
  background-color: #2563eb;
}

.bg-teal-600 {
  background-color: #0d9488;
}

.bg-purple-600 {
  background-color: #9333ea;
}

.bg-green-600 {
  background-color: #16a34a;
}

.bg-orange-600 {
  background-color: #ea580c;
}

.bg-gray-50 {
  background-color: #f9fafb;
}

/* Hover utilities */
.hover\:bg-blue-700:hover {
  background-color: #1d4ed8;
}

.hover\:bg-teal-700:hover {
  background-color: #0f766e;
}

.hover\:bg-purple-700:hover {
  background-color: #7e22ce;
}

.hover\:bg-green-700:hover {
  background-color: #15803d;
}

.hover\:bg-orange-700:hover {
  background-color: #c2410c;
}

/* Border utilities */
.rounded-lg {
  border-radius: 0.5rem;
}