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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a25;
  --accent-blue: #4f9cf9;
  --accent-blue-dark: #3b82f6;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --border: #2a2a35;
  --border-light: #404040;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --radius: 8px;
  --transition: all 0.2s ease;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
  gap: 0;
}

.sidebar {
  grid-row: 1 / -1;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 32px 0;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.brand {
  padding: 0 24px;
  margin-bottom: 32px;
}

.brand span::before {
  content: "VIRTUE";
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.side-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 16px;
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
  font-weight: 500;
  position: relative;
}

.nav-link svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
  transition: color 0.2s ease;
}

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

.nav-link.active {
  color: var(--accent-blue);
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--accent-blue);
  border-radius: 0 2px 2px 0;
}

.user-info {
  margin-top: auto;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-info svg {
  width: 16px;
  height: 16px;
}

.badge {
  background: var(--bg-tertiary);
  color: var(--accent-blue);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 24px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-logo svg {
  width: 32px;
  height: 32px;
  color: var(--accent-blue);
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.subtle {
  color: var(--text-secondary);
  font-size: 14px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
  font-weight: 500;
}

.nav-links a:hover {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

.container {
  padding: 40px;
  overflow-y: auto;
  background: linear-gradient(135deg, var(--bg-primary) 0%, #0d0d15 100%);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-content: start;
}

.section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
  opacity: 0.5;
}

.section h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.section-subtext {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 16px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-dark) 100%);
  color: white;
  text-decoration: none;
  padding: 16px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 16px;
  transition: var(--transition);
  box-shadow: var(--shadow);
  border: none;
  cursor: pointer;
}

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

.btn-primary svg {
  width: 20px;
  height: 20px;
}

.account-info-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 16px 24px;
  background: var(--bg-tertiary);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
}

.account-info-grid > div:nth-child(odd) {
  color: var(--text-secondary);
  font-weight: 600;
}

.account-info-grid > div:nth-child(even) {
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
  background: var(--bg-primary);
  padding: 8px 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr;
  }

  .sidebar {
    grid-row: auto;
    padding: 16px;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
  }

  .side-nav {
    flex-direction: row;
    gap: 8px;
    padding: 0;
  }

  .nav-link span {
    display: none;
  }

  .user-info {
    margin-top: 0;
    border-top: none;
    border-left: 1px solid var(--border);
    padding-left: 16px;
  }

  .container {
    padding: 24px;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section {
    padding: 24px;
  }

  .account-info-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

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

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

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

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

.section {
  animation: fadeInUp 0.6s ease-out;
}

.section:nth-child(2) {
  animation-delay: 0.1s;
}