/* ============================================
   Modern Design System - AWS Globe Theme
   ============================================ */

/* ============================================
   CSS Variables - Color Palette
   ============================================ */

:root {
  /* Primary Colors */
  --color-deep-space: #0a0e17;
  --color-cosmic-blue: #1a73e8;
  --color-electric-cyan: #00d4ff;
  --color-nebula-purple: #7c3aed;
  
  /* Text Colors */
  --color-stellar-white: #f0f4f8;
  --color-cloud-gray: #94a3b8;
  --color-muted: #64748b;
  
  /* Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;
  
  /* Surface Colors */
  --color-surface-dark: #111827;
  --color-surface-medium: #1f2937;
  --color-surface-light: #374151;
  --color-border: #374151;
  --color-border-light: #4b5563;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-cosmic-blue), var(--color-nebula-purple));
  --gradient-glow: linear-gradient(135deg, var(--color-electric-cyan), var(--color-cosmic-blue));
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 20px rgba(0, 212, 255, 0.3);
  --shadow-glow-blue: 0 0 20px rgba(26, 115, 232, 0.3);
  --shadow-glow-purple: 0 0 20px rgba(124, 58, 237, 0.3);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-deep-space);
  color: var(--color-stellar-white);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-stellar-white);
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  color: var(--color-cloud-gray);
  margin-bottom: var(--spacing-md);
}

.text-lg {
  font-size: 1.125rem;
}

.text-sm {
  font-size: 0.875rem;
}

.text-xs {
  font-size: 0.75rem;
}

.text-muted {
  color: var(--color-muted);
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

a {
  color: var(--color-electric-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-cosmic-blue);
  text-decoration: underline;
}

/* ============================================
   Layout
   ============================================ */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.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-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

/* ============================================
   Header / Navigation
   ============================================ */

.modern-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-normal);
}

.modern-header.scrolled {
  background: rgba(10, 14, 23, 0.95);
}

.modern-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.modern-header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-stellar-white);
  text-decoration: none;
}

.modern-header__logo:hover {
  color: var(--color-electric-cyan);
  text-decoration: none;
}

.modern-header__logo-icon {
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modern-header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.modern-header__nav-link {
  color: var(--color-cloud-gray);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.modern-header__nav-link:hover,
.modern-header__nav-link.active {
  color: var(--color-stellar-white);
  text-decoration: none;
}

.modern-header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-fast);
}

.modern-header__nav-link:hover::after,
.modern-header__nav-link.active::after {
  width: 100%;
}

.modern-header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.5;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-glow-blue);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-blue), var(--shadow-md);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--color-stellar-white);
  border: 1px solid var(--color-border-light);
}

.btn-secondary:hover {
  background: var(--color-surface-medium);
  border-color: var(--color-electric-cyan);
  color: var(--color-electric-cyan);
}

.btn-ghost {
  background: transparent;
  color: var(--color-cloud-gray);
  padding: var(--spacing-sm);
}

.btn-ghost:hover {
  color: var(--color-stellar-white);
  background: var(--color-surface-medium);
}

.btn-glow {
  position: relative;
  background: var(--color-surface-dark);
  color: var(--color-electric-cyan);
  border: 1px solid var(--color-electric-cyan);
  overflow: hidden;
}

.btn-glow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-glow:hover::before {
  opacity: 0.15;
}

.btn-glow:hover {
  box-shadow: var(--shadow-glow-cyan);
  color: var(--color-electric-cyan);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.875rem;
}

.btn-icon {
  padding: var(--spacing-sm);
  width: 40px;
  height: 40px;
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-lg);
}

.card-glow:hover {
  border-color: var(--color-cosmic-blue);
  box-shadow: var(--shadow-glow-blue);
}

.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-stellar-white);
}

.card__body {
  color: var(--color-cloud-gray);
}

/* ============================================
   Tables
   ============================================ */

.modern-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.modern-table thead {
  background: var(--color-surface-medium);
}

.modern-table th {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-cloud-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-border);
}

.modern-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-stellar-white);
}

.modern-table tbody tr {
  transition: background var(--transition-fast);
}

.modern-table tbody tr:hover {
  background: var(--color-surface-medium);
}

.modern-table tbody tr:last-child td {
  border-bottom: none;
}

.table-link {
  color: var(--color-electric-cyan);
  font-weight: 500;
}

.table-link:hover {
  color: var(--color-cosmic-blue);
}

/* ============================================
   Badges / Tags
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background: var(--color-surface-medium);
  color: var(--color-cloud-gray);
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-error);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-info {
  background: rgba(59, 130, 246, 0.15);
  color: var(--color-info);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-cyan {
  background: rgba(0, 212, 255, 0.15);
  color: var(--color-electric-cyan);
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.badge-purple {
  background: rgba(124, 58, 237, 0.15);
  color: var(--color-nebula-purple);
  border: 1px solid rgba(124, 58, 237, 0.3);
}

/* ============================================
   Form Elements
   ============================================ */

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-stellar-white);
}

.form-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-stellar-white);
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-cosmic-blue);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
}

.form-input::placeholder {
  color: var(--color-muted);
}

.form-select {
  appearance: none;
  background-image: 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='%2394a3b8' 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");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  padding-right: var(--spacing-2xl);
}

.form-hint {
  margin-top: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-muted);
}

.form-label--parameter {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-stellar-white);
  position: relative;
  padding-left: var(--spacing-lg);
}

.form-label--parameter::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: linear-gradient(135deg, var(--color-electric-cyan), var(--color-cosmic-blue));
  border-radius: var(--radius-sm);
}

.form-label--parameter:hover::before {
  background: linear-gradient(135deg, var(--color-cosmic-blue), var(--color-electric-cyan));
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
}

.form-group--parameter {
  background: 
    radial-gradient(circle at 10% 30%, rgba(0, 229, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 90% 70%, rgba(26, 115, 232, 0.05) 0%, transparent 50%),
    linear-gradient(135deg, rgba(0, 229, 255, 0.02) 0%, transparent 50%, rgba(26, 115, 232, 0.02) 100%);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 229, 255, 0.08);
  transition: all var(--transition-fast);
}

.form-group--parameter:hover {
  border-color: rgba(0, 229, 255, 0.15);
  background: 
    radial-gradient(circle at 10% 30%, rgba(0, 229, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 90% 70%, rgba(26, 115, 232, 0.08) 0%, transparent 50%),
    linear-gradient(135deg, rgba(0, 229, 255, 0.03) 0%, transparent 50%, rgba(26, 115, 232, 0.03) 100%);
}

.form-error {
  margin-top: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-error);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  position: relative;
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: var(--spacing-xl);
}

.hero__title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.03em;
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-cloud-gray);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

.hero__actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-cloud-gray);
  font-size: 0.875rem;
  animation: bounce 2s infinite;
  cursor: pointer;
}

.hero__scroll-indicator svg {
  width: 24px;
  height: 24px;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* ============================================
   Footer
   ============================================ */

.modern-footer {
  background: var(--color-surface-dark);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl) 0;
}

.modern-footer__container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.modern-footer__links {
  display: flex;
  gap: var(--spacing-lg);
}

.modern-footer__link {
  color: var(--color-cloud-gray);
  font-size: 0.875rem;
}

.modern-footer__link:hover {
  color: var(--color-stellar-white);
}

.modern-footer__copyright {
  color: var(--color-muted);
  font-size: 0.875rem;
}

/* ============================================
   Alerts / Notifications
   ============================================ */

.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--color-success);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--color-error);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--color-warning);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--color-info);
}

/* ============================================
   Main Content Area
   ============================================ */

.main-content {
  padding-top: 64px; /* Header height */
  min-height: 100vh;
}

.main-content--no-header {
  padding-top: 0;
}

.page-section {
  padding: var(--spacing-3xl) 0;
}

.page-header {
  margin-bottom: var(--spacing-2xl);
}

.page-title {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.page-description {
  font-size: 1.125rem;
  color: var(--color-cloud-gray);
}

/* ============================================
   Empty State
   ============================================ */

.empty-state {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
  background: var(--color-surface-dark);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
}

.empty-state__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  color: var(--color-muted);
}

.empty-state__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.empty-state__description {
  color: var(--color-cloud-gray);
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   Utility Classes
   ============================================ */

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.mr-sm { margin-right: var(--spacing-sm); }
.mr-md { margin-right: var(--spacing-md); }

.ml-sm { margin-left: var(--spacing-sm); }
.ml-md { margin-left: var(--spacing-md); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.table-row--highlighted {
  background: var(--color-surface-high);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .hero__title {
    font-size: 2.5rem;
  }
  
  .hero__subtitle {
    font-size: 1rem;
  }
  
  .modern-header__nav {
    display: none;
  }
  
  .modern-table {
    display: block;
    overflow-x: auto;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
}

/* ============================================
   Scrollbar Styling
   ============================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-surface-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface-light);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-light);
}

/* ============================================
   Selection Styling
   ============================================ */

::selection {
  background: var(--color-cosmic-blue);
  color: white;
}

/* ============================================
   Phase Banner (Modern Version)
   ============================================ */

.modern-phase-banner {
  background: var(--color-surface-dark);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
}

.modern-phase-banner__content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 0.875rem;
}

.modern-phase-banner__tag {
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.modern-phase-banner__text {
  color: var(--color-cloud-gray);
}

/* ============================================
   Table Wrapper with Border
   ============================================ */

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

.table-wrapper .modern-table {
  border-radius: 0;
}

/* ============================================
   Section Headers
   ============================================ */

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.section-title {
  font-size: 1.5rem;
  font-weight: 600;
}

/* ============================================
   Group Card (for Group Projects)
   ============================================ */

.group-card {
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.group-card__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.group-card__title {
  font-size: 1.25rem;
  font-weight: 600;
}

.group-card__title a {
  color: var(--color-stellar-white);
}

.group-card__title a:hover {
  color: var(--color-electric-cyan);
}

/* ============================================
   Action Links
   ============================================ */

.action-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.action-link {
  color: var(--color-electric-cyan);
  font-size: 0.875rem;
  font-weight: 500;
}

.action-link:hover {
  color: var(--color-cosmic-blue);
}

.action-link--danger {
  color: var(--color-error);
}

.action-link--danger:hover {
  color: #dc2626;
}

/* ============================================
   Divider
   ============================================ */

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

/* ============================================
   Page Layout Components
   ============================================ */

.page-header {
  margin-bottom: var(--spacing-2xl);
}

.page-header__title {
  font-size: 2rem;
  margin: 0 0 var(--spacing-sm) 0;
}

.page-header__subtitle {
  font-size: 1.125rem;
  color: var(--color-muted);
  margin: 0;
}

.page-header--with-icon {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.page-header__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   Card Variants
   ============================================ */

.card--table {
  overflow: hidden;
}

.card--table .card__body {
  padding: 0;
}

.card--danger {
  border: 2px solid var(--color-error);
  background: rgba(239, 68, 68, 0.05);
}

.card--danger .card__header {
  border-bottom: 1px solid var(--color-error);
}

.card__header--with-subtitle p {
  margin: var(--spacing-xs) 0 0 0;
}

/* ============================================
   Form Layouts
   ============================================ */

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

.form-input--narrow {
  max-width: 300px;
}

.form-input--medium {
  max-width: 400px;
}

/* ============================================
   Action Buttons
   ============================================ */

.action-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

/* ============================================
   Member Grid
   ============================================ */

.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.member-card {
  padding: var(--spacing-md);
  background: var(--color-surface-medium);
  border-radius: var(--radius-md);
}

.member-card__email {
  font-weight: 500;
  color: var(--color-stellar-white);
  margin-bottom: var(--spacing-xs);
  word-break: break-all;
}

.member-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-stellar-white);
  flex-shrink: 0;
}

.member-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.member-info__details {
  flex: 1;
  min-width: 0;
}

.member-info__name {
  font-weight: 500;
  color: var(--color-stellar-white);
}

/* ============================================
   Settings Layout
   ============================================ */

.settings-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.settings-sidebar {
  position: sticky;
  top: calc(64px + var(--spacing-lg));
}

/* ============================================
   Danger Zone
   ============================================ */

.danger-summary {
  list-style: none;
  padding: var(--spacing-md);
  background: var(--color-surface-medium);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-bottom: var(--spacing-md);
  cursor: pointer;
}

.danger-summary__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.danger-summary__title {
  font-weight: 500;
  color: var(--color-error);
  margin-bottom: var(--spacing-xs);
}

.danger-summary__description {
  font-size: 0.875rem;
  color: var(--color-muted);
}

.danger-details {
  padding: var(--spacing-lg);
  background: var(--color-surface-low);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-error);
}

/* ============================================
   Container Variants
   ============================================ */

.container--narrow {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.container--medium {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.container--wide {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

/* ============================================
   Display Utilities
   ============================================ */

.d-inline {
  display: inline;
}

.d-inline-block {
  display: inline-block;
}

/* ============================================
   Button Variants
   ============================================ */

.btn-danger {
  background: var(--color-error);
  color: #ffffff;
  font-weight: 600;
}

.btn-danger:hover {
  background: #dc2626;
  color: #ffffff;
}

.btn-danger:disabled {
  background: #7f1d1d;
  color: rgba(255, 255, 255, 0.5);
  cursor: not-allowed;
}