/* SatMon - Satellite Telemetry Dashboard Styles */

:root {
  --primary-color: #3b82f6;
  --secondary-color: #8b5cf6;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--gray-100);
  background: var(--gray-900);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
  margin-bottom: 1rem;
  color: var(--gray-300);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  color: white;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-1);
  border-radius: 2px;
}

/* Grid System */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-700);
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
}

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

.nav-links a {
  color: var(--gray-300);
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary-color);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.gradient-bg {
  background: 
    linear-gradient(135deg, rgba(102, 126, 234, 0.8) 0%, rgba(118, 75, 162, 0.8) 100%),
    url('/static/images/stars-background.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
}

.gradient-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.2;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-1);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Cards */
.card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 1rem;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.glass {
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.1);
}

.glass-dark {
  backdrop-filter: blur(10px);
  background: rgba(0, 0, 0, 0.2);
}

.card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Demo Section */
.demo-section {
  background: var(--gray-800);
  position: relative;
}

.demo-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  margin-bottom: 2rem;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 1rem;
  backdrop-filter: blur(10px);
}

.demo-controls label {
  font-weight: 500;
  color: var(--gray-200);
}

.demo-controls select {
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--gray-600);
  background: var(--gray-700);
  color: white;
  min-width: 200px;
}

.demo-controls select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Chart Container */
.chart-container {
  position: relative;
  height: 400px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 1rem;
  padding: 1rem;
  margin: 2rem 0;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Results */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.result-card {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 0.75rem;
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.result-card h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0.5rem 0;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.result-item:last-child {
  border-bottom: none;
}

/* Metrics */
.metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0.75rem 0;
  padding: 0.5rem 0;
}

.metric-value {
  font-weight: 600;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}

.metric-value.success {
  color: var(--success-color);
  background: rgba(16, 185, 129, 0.1);
}

.metric-value.warning {
  color: var(--warning-color);
  background: rgba(245, 158, 11, 0.1);
}

.metric-value.danger {
  color: var(--danger-color);
  background: rgba(239, 68, 68, 0.1);
}

/* Status Indicators */
.status-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.status-online {
  background: var(--success-color);
  box-shadow: 0 0 8px var(--success-color);
}

.status-offline {
  background: var(--danger-color);
  box-shadow: 0 0 8px var(--danger-color);
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Utility Classes */
.hidden { display: none !important; }

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

.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1rem; }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* Color Classes */
.text-green-400 { color: #4ade80; }
.text-blue-400 { color: #60a5fa; }
.text-yellow-400 { color: #facc15; }
.text-red-400 { color: #f87171; }

/* Parallax effect for hero background */
@media (min-width: 769px) {
  .gradient-bg {
    background-attachment: fixed;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .gradient-bg {
    background-attachment: scroll;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .demo-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .demo-controls > div {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .chart-container {
    height: 300px;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-800);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-600);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}