/* public/css/main.css */
:root {
  --clr-primary: #4c51bf;
  --clr-primary-light: #667eea;
  --clr-accent: #ef233c;
  --clr-info: #00b4d8;
  --clr-success: #10b981;
  --clr-warning: #f59e0b;
  --clr-danger: #ef4444;
  
  --clr-bg-light: #ffffff;
  --clr-bg-dark: #111827;
  --clr-bg-card-light: rgba(255, 255, 255, 0.95);
  --clr-bg-card-dark: #1f2937;
  
  --clr-text-light: #1f2937;
  --clr-text-dark: #f9fafb;
  --clr-text-muted-light: #6b7280;
  --clr-text-muted-dark: #9ca3af;
  
  --clr-border-light: #e5e7eb;
  --clr-border-dark: #374151;
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-full: 9999px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  transition: background 0.3s ease, color 0.3s ease;
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-light) 100%);
  color: var(--clr-text-light);
  line-height: 1.6;
  min-height: 100vh;
}

body.dark-mode {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
  color: var(--clr-text-dark);
}

/* ===== NAVIGATION (Bootstrap Enhanced) ===== */
.navbar {
  background: rgba(33, 37, 41, 0.95) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-brand {
  font-size: 1.5rem !important;
  font-weight: 700 !important;
  color: var(--clr-primary-light) !important;
  text-decoration: none;
  transition: color 0.2s ease;
}

.navbar-brand:hover {
  color: white !important;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.7) !important;
  font-weight: 500;
  padding: 0.75rem 1rem !important;
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
  margin: 0 0.25rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  background: var(--clr-primary) !important;
  color: white !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.theme-toggle {
  background: none;
  border: none;
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
}

.theme-toggle:hover {
  background: rgba(79, 209, 197, 0.1);
  color: var(--clr-primary-light);
  transform: rotate(180deg);
}

.btn-outline-light {
  border-color: var(--clr-primary-light) !important;
  color: var(--clr-primary-light) !important;
  transition: all 0.2s ease;
}

.btn-outline-light:hover {
  background: var(--clr-primary-light) !important;
  border-color: var(--clr-primary-light) !important;
  color: white !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.dropdown-menu {
  background: rgba(31, 41, 55, 0.95) !important;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  border-radius: var(--border-radius) !important;
  box-shadow: var(--shadow-lg) !important;
}

.dropdown-item {
  color: rgba(255, 255, 255, 0.8) !important;
  transition: all 0.2s ease;
}

.dropdown-item:hover {
  background: rgba(79, 209, 197, 0.1) !important;
  color: var(--clr-primary-light) !important;
}

/* ===== DARK MODE NAVBAR ===== */
body.dark-mode .navbar {
  background: rgba(17, 24, 39, 0.95) !important;
  border-bottom-color: rgba(55, 65, 81, 0.3);
}

body.dark-mode .navbar-brand {
  color: var(--clr-primary-light) !important;
}

body.dark-mode .navbar-nav .nav-link {
  color: var(--clr-text-muted-dark) !important;
}

body.dark-mode .navbar-nav .nav-link:hover,
body.dark-mode .navbar-nav .nav-link.active {
  background: var(--clr-primary-light) !important;
  color: white !important;
}

body.dark-mode .theme-toggle {
  color: var(--clr-text-muted-dark);
}

body.dark-mode .theme-toggle:hover {
  color: var(--clr-primary-light);
}

body.dark-mode .btn-outline-light {
  border-color: var(--clr-primary-light) !important;
  color: var(--clr-primary-light) !important;
}

body.dark-mode .btn-outline-light:hover {
  background: var(--clr-primary-light) !important;
  color: white !important;
}

body.dark-mode .dropdown-menu {
  background: rgba(17, 24, 39, 0.95) !important;
  border-color: rgba(55, 65, 81, 0.3) !important;
}

body.dark-mode .dropdown-item {
  color: var(--clr-text-dark) !important;
}

body.dark-mode .dropdown-item:hover {
  background: rgba(102, 126, 234, 0.1) !important;
  color: var(--clr-primary-light) !important;
}

/* ===== MAIN CONTENT ===== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

main {
  background: var(--clr-bg-card-light);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  margin: 2rem 0;
  overflow: hidden;
}

/* ===== CARDS ===== */
.card {
  background: var(--clr-bg-card-light);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--clr-border-light);
  overflow: hidden;
  margin-bottom: 1.5rem;
  transition: all 0.2s ease;
}

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

.card-header {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-light) 100%);
  color: white;
  padding: 1.5rem 2rem;
  font-weight: 600;
  font-size: 1.1rem;
}

.card-body {
  padding: 2rem;
}

/* ===== FORMS ===== */
.auth-form {
  max-width: 450px;
  margin: 2rem auto;
  background: var(--clr-bg-card-light);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--clr-text-light);
}

.form-control,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--clr-border-light);
  border-radius: var(--border-radius);
  background: white;
  color: var(--clr-text-light);
  transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(79, 209, 197, 0.1);
}

.form-text {
  font-size: 0.875rem;
  color: var(--clr-text-muted-light);
  margin-top: 0.25rem;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border-radius: var(--border-radius);
  border: none;
  transition: all 0.2s ease;
  line-height: 1;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary {
  background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-primary-light) 100%);
  color: white;
}

.btn-secondary {
  background: linear-gradient(135deg, var(--clr-info) 0%, #0ea5e9 100%);
  color: white;
}

.btn-success {
  background: linear-gradient(135deg, var(--clr-success) 0%, #059669 100%);
  color: white;
}

.btn-danger {
  background: linear-gradient(135deg, var(--clr-danger) 0%, #dc2626 100%);
  color: white;
}

.btn-warning {
  background: linear-gradient(135deg, var(--clr-warning) 0%, #d97706 100%);
  color: white;
}

/* ===== TABLES ===== */
.table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table th {
  background: #f8fafc;
  color: var(--clr-text-light);
  font-weight: 600;
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 2px solid var(--clr-border-light);
}

.table td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--clr-border-light);
  vertical-align: middle;
}

.table tbody tr {
  transition: background 0.2s ease;
}

.table tbody tr:hover {
  background: rgba(79, 209, 197, 0.05);
}

/* ===== FOOTER ===== */
.footer {
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-weight: 500;
}

.footer a:hover {
  color: white;
  text-decoration: underline;
}

/* ===== DARK MODE OVERRIDES ===== */
body.dark-mode main,
body.dark-mode .card,
body.dark-mode .auth-form {
  background: var(--clr-bg-card-dark);
  border-color: var(--clr-border-dark);
}

body.dark-mode .form-control,
body.dark-mode .form-select,
body.dark-mode input,
body.dark-mode textarea {
  background: var(--clr-bg-card-dark);
  color: var(--clr-text-dark);
  border-color: var(--clr-border-dark);
}

body.dark-mode .form-label {
  color: var(--clr-text-dark);
}

body.dark-mode .form-text {
  color: var(--clr-text-muted-dark);
}

body.dark-mode .table {
  background: var(--clr-bg-card-dark);
  color: var(--clr-text-dark);
}

body.dark-mode .table th {
  background: #374151;
  color: var(--clr-text-dark);
  border-color: var(--clr-border-dark);
}

body.dark-mode .table td {
  border-color: var(--clr-border-dark);
}

body.dark-mode .table tbody tr:hover {
  background: rgba(102, 126, 234, 0.1);
}

/* ===== DARK MODE LANDING PAGE ===== */
body.dark-mode .hero-section {
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
}

body.dark-mode .hero-background {
  background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.2) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
              radial-gradient(circle at 40% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
}

body.dark-mode .capabilities-section {
  background: var(--clr-bg-card-dark);
}

body.dark-mode .data-types-section {
  background: linear-gradient(135deg, var(--clr-bg-card-dark) 0%, var(--clr-border-dark) 100%);
}

body.dark-mode .capability-card,
body.dark-mode .data-type-item {
  background: var(--clr-bg-card-dark);
  border-color: var(--clr-border-dark);
}

body.dark-mode .section-title,
body.dark-mode .capability-title,
body.dark-mode .data-type-item h4,
body.dark-mode .access-notice-content h3 {
  color: var(--clr-text-dark);
}

body.dark-mode .section-subtitle,
body.dark-mode .capability-description,
body.dark-mode .data-type-item li,
body.dark-mode .access-notice-content p,
body.dark-mode .security-feature {
  color: var(--clr-text-muted-dark);
}

body.dark-mode .access-notice-card {
  background: var(--clr-bg-card-dark);
  border-color: var(--clr-border-dark);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .navbar-container {
    padding: 1rem;
  }
  
  .navbar-toggle {
    display: flex;
  }
  
  .navbar-collapse {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 1rem;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    box-shadow: var(--shadow-lg);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
  }
  
  .navbar-collapse.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .navbar-nav {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }
  
  .nav-link {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
  }
  
  .navbar-user {
    width: 100%;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--clr-border-light);
  }
  
  .container {
    padding: 1rem;
  }
  
  .auth-form {
    margin: 1rem;
    padding: 1.5rem;
  }
  
  body.dark-mode .navbar-collapse {
    background: rgba(31, 41, 55, 0.98);
  }
  
  body.dark-mode .navbar-user {
    border-color: var(--clr-border-dark);
  }
}

@media (max-width: 480px) {
  .navbar-container {
    padding: 0.75rem;
  }
  
  .container {
    padding: 0.5rem;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.9rem;
  }
}
.hero-section {
  position: relative;
  min-height: 50vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 50%, #1e1b4b 100%);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 40% 80%, rgba(99, 102, 241, 0.2) 0%, transparent 50%);

}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 2rem;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-indicator {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  color: white;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-subtitle {
  display: block;
  font-size: 1.5rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 0.5rem;
}

.hero-description {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.btn-hero {
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 12px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  border: none;
}

.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.hero-stats {
  display: flex;
  gap: 2rem;
}

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

.stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== BACKUP VISUALIZATION ===== */
.backup-visualization {
  position: relative;
  width: 100%;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.central-node {
  position: absolute;
  text-align: center;
  z-index: 10;
}

.central-node .node-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  margin: 0 auto 0.5rem;
  box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
  animation: centralPulse 3s ease-in-out infinite;
}

@keyframes centralPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.central-node .node-label {
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
}

.backup-nodes {
  position: relative;
  width: 400px;
  height: 400px;
}

.backup-node {
  position: absolute;
  text-align: center;
}

.backup-node .node-icon {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin: 0 auto 0.5rem;
  transition: all 0.3s ease;
}

.backup-node:hover .node-icon {
  background: rgba(99, 102, 241, 0.3);
  border-color: rgba(99, 102, 241, 0.5);
  transform: scale(1.1);
}

.backup-node .node-label {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.8rem;
  font-weight: 500;
}

.connection-line {
  position: absolute;
  width: 2px;
  height: 100px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.3), transparent);
  left: 50%;
  transform: translateX(-50%);
  animation: dataFlow 2s linear infinite;
}

@keyframes dataFlow {
  0% { opacity: 0.3; }
  50% { opacity: 1; }
  100% { opacity: 0.3; }
}

.node-1 { top: 0; left: 50%; transform: translateX(-50%); }
.node-2 { top: 50%; right: 0; transform: translateY(-50%); }
.node-3 { bottom: 0; left: 50%; transform: translateX(-50%); }
.node-4 { top: 50%; left: 0; transform: translateY(-50%); }

/* ===== CAPABILITIES SECTION ===== */
.capabilities-section {
  padding: 6rem 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.2rem;
  color: #6b7280;
  max-width: 600px;
  margin: 0 auto;
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.capability-card {
  background: white;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  height: 100%;
}

.capability-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.capability-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #4c51bf 0%, #667eea 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.capability-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 1rem;
}

.capability-description {
  color: #6b7280;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.capability-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.feature-tag {
  background: rgba(79, 209, 197, 0.1);
  color: #0d9488;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* ===== DATA TYPES SECTION ===== */
.data-types-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.data-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.data-type-item {
  background: white;
  padding: 2rem;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
}

.data-type-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.data-type-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  margin: 0 auto 1rem;
}

.data-type-item h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 1rem;
}

.data-type-item ul {
  list-style: none;
  padding: 0;
}

.data-type-item li {
  color: #6b7280;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1rem;
}

.data-type-item li::before {
  content: "•";
  color: #10b981;
  position: absolute;
  left: 0;
}

/* ===== ACCESS NOTICE SECTION ===== */
.access-notice-section {
  padding: 4rem 0;
  background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 100%);
}

.access-notice-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 3rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.access-notice-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  flex-shrink: 0;
}

.access-notice-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 1rem;
}

.access-notice-content p {
  color: #6b7280;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.security-features {
  display: flex;
  gap: 2rem;
}

.security-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #4b5563;
  font-size: 0.9rem;
  font-weight: 500;
}

.security-feature i {
  color: #10b981;
}

.notification-icon-container {
  display: inline-block;
  position: relative;
}

.btn-notification {
  background: transparent;
  border: none;
  box-shadow: none;
  position: relative;
}

.notification-badge {
  font-size: 0.8rem;
  padding: 0.2em 0.6em;
  pointer-events: none;
  z-index: 1;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .capabilities-grid {
    grid-template-columns: 1fr;
  }
  
  .data-types-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
  
  .access-notice-card {
    flex-direction: column;
    text-align: center;
  }
  
  .security-features {
    flex-direction: column;
    gap: 1rem;
  }
  
  .backup-visualization {
    height: 300px;
  }
  
  .backup-nodes {
    width: 250px;
    height: 250px;
  }
}