/* Stromfee.ai - Main CSS */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f5f7fa;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #4f46e5;
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: #333;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #4f46e5;
}

.lang-switcher {
  background: none;
  border: 2px solid #e5e7eb;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all 0.3s;
}

.lang-switcher:hover {
  border-color: #4f46e5;
  background: #f9fafb;
}

/* Hero */
.hero {
  padding: 4rem 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  text-align: center;
}

.gradient-bg {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-title {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  opacity: 0.9;
}

.hero-description {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  opacity: 0.85;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: #4f46e5;
  color: #fff;
}

.btn-primary:hover {
  background: #4338ca;
  transform: translateY(-2px);
}

.btn-secondary {
  background: #fff;
  color: #4f46e5;
}

.btn-secondary:hover {
  background: #f9fafb;
  transform: translateY(-2px);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

/* Features */
.features {
  padding: 4rem 0;
  background: #fff;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #111827;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 2rem;
  background: #f9fafb;
  border-radius: 12px;
  text-align: center;
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: #111827;
}

.feature-card p {
  color: #6b7280;
}

/* CTA Section */
.cta {
  padding: 4rem 0;
  text-align: center;
}

.cta-title {
  color: #fff;
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

/* Dashboard */
.dashboard-hero {
  padding: 3rem 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

.dashboard-title {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.dashboard-subtitle {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-bottom: 0.5rem;
}

.dashboard-updated {
  opacity: 0.75;
  font-size: 0.9rem;
}

.dashboard-metrics {
  padding: 3rem 0;
  background: #fff;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.metric-card {
  padding: 1.5rem;
  background: #f9fafb;
  border-radius: 12px;
  border-left: 4px solid #4f46e5;
}

.metric-card.highlight {
  background: #eef2ff;
  border-left-color: #4f46e5;
  border-left-width: 6px;
}

.metric-card.success {
  border-left-color: #10b981;
}

.metric-label {
  font-size: 0.9rem;
  color: #6b7280;
  margin-bottom: 0.5rem;
}

.metric-value {
  font-size: 2rem;
  font-weight: bold;
  color: #111827;
}

.metric-unit {
  font-size: 0.9rem;
  color: #9ca3af;
  margin-top: 0.25rem;
}

.loading {
  color: #9ca3af;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.dashboard-chart {
  padding: 3rem 0;
  background: #f9fafb;
}

.chart-card {
  background: #fff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.chart-title {
  margin-bottom: 1.5rem;
  color: #111827;
}

.dashboard-grafana {
  padding: 3rem 0;
  background: #fff;
}

.grafana-embed {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

/* Footer */
footer {
  background: #111827;
  color: #fff;
  padding: 3rem 0 1rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col h4 {
  margin-bottom: 1rem;
  color: #f9fafb;
}

.footer-col ul {
  list-style: none;
}

.footer-col a {
  color: #9ca3af;
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: color 0.3s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #374151;
  color: #9ca3af;
}

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

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .nav-links {
    flex-direction: column;
    gap: 0.5rem;
  }

  .dropdown-menu {
    display: none;
  }
}