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

:root {
  --primary-color: #1a4d8f;
  --primary-dark: #0d3266;
  --accent-color: #2563eb;
  --accent-color-dim: rgba(37, 99, 235, 0.15);
  --success-color: #059669;
  --warning-color: #d97706;
  --background: #0a0f1a;
  --surface: #141b2d;
  --surface-elevated: #1a2337;
  --surface-hover: #212a40;
  --border-color: #2a3547;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
}

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Login Page Layout */
.login-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.login-header {
  padding: 2rem 3rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border-color);
}

.company-branding {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.brand-mark {
  width: 48px;
  height: 48px;
  background: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -1px;
  color: white;
  border: 2px solid var(--accent-color);
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}

.brand-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 500;
}

/* Login Content */
.login-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  gap: 4rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.login-box {
  background: var(--surface);
  border: 1px solid var(--border-color);
  padding: 3rem;
  width: 100%;
  max-width: 480px;
}

.login-title h1 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.login-title p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.85rem;
}

.login-form {
  margin-bottom: 2rem;
}

.btn-login {
  display: block;
  width: 100%;
  padding: 1rem 1.5rem;
  background: var(--primary-color);
  color: white;
  text-align: center;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--accent-color);
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-login:hover {
  background: var(--accent-color);
  border-color: var(--accent-color);
}

.login-help {
  margin-top: 1.5rem;
  text-align: center;
}

.login-help p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* System Info */
.system-info {
  background: var(--surface);
  border: 1px solid var(--border-color);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
}

.info-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

.info-value {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
  font-family: 'Courier New', monospace;
}

/* Capabilities Section */
.capabilities {
  background: var(--surface);
  border-top: 1px solid var(--border-color);
  padding: 3rem;
}

.capability-header {
  max-width: 1400px;
  margin: 0 auto 2.5rem;
}

.capability-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.capability-item {
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  transition: border-color 0.2s;
}

.capability-item:hover {
  border-color: var(--primary-color);
}

.capability-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
}

.capability-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Footer */
.login-footer {
  background: var(--surface);
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 3rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-divider {
  color: var(--border-color);
}

/* Responsive */
@media (max-width: 1024px) {
  .login-content {
    flex-direction: column;
    gap: 2rem;
  }

  .system-info {
    max-width: 480px;
  }
}

@media (max-width: 768px) {
  .login-header {
    padding: 1.5rem;
  }

  .brand-title {
    font-size: 1.25rem;
  }

  .brand-subtitle {
    font-size: 0.7rem;
  }

  .login-content {
    padding: 2rem 1rem;
  }

  .login-box {
    padding: 2rem 1.5rem;
  }

  .capabilities {
    padding: 2rem 1.5rem;
  }

  .capability-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .login-footer {
    padding: 1.5rem;
  }

  .footer-content {
    flex-wrap: wrap;
    font-size: 0.8rem;
  }
}

/* Admin Panel Tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
  background: var(--surface);
}

.tab-button {
  padding: 1rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.tab-button:hover {
  color: var(--text-primary);
  background: var(--surface-hover);
}

.tab-button.active {
  color: var(--text-primary);
  border-bottom: 2px solid var(--accent-color);
  background: var(--surface-elevated);
}

.tab-content {
  display: none;
}

/* Form elements */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.5;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group input[type="email"]:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.form-value {
  padding: 0.75rem 1rem;
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: 'Courier New', monospace;
}

.form-info {
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 1rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-info p {
  margin: 0.25rem 0;
}

.form-info p:first-child {
  margin-top: 0;
}

.form-info p:last-child {
  margin-bottom: 0;
}

/* Brand Link Styling */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.2s;
}

.nav-brand:hover {
  opacity: 0.8;
}

/* World Information in Navbar */
.nav-world-info {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  padding: 0.75rem 1.25rem;
  background: linear-gradient(135deg, var(--surface-elevated), var(--surface));
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  min-width: 320px;
  justify-content: space-around;
}

.world-info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 70px;
}

.world-info-item .info-label {
  font-size: 0.65rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
  font-weight: 600;
}

.world-info-item .info-value {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 700;
  font-family: 'Courier New', monospace;
  text-align: center;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  min-width: 60px;
}

/* Highlight the time element to make it more prominent */
.world-info-item.time-highlight .info-value {
  background: rgba(37, 99, 235, 0.15); /* --accent-color with transparency */
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  font-size: 1.1rem;
  font-weight: 800;
  padding: 0.3rem 0.6rem;
  min-width: 80px;
}