/**
 * Base Styles - Shared across all pages
 * MarketMate Frontend
 */

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

/* Base Typography & Colors */
body {
  font-family: 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: white;
  position: relative;
  overflow-x: hidden;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 20% 50%, rgba(138, 43, 226, 0.3) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(72, 209, 204, 0.3) 0%, transparent 50%);
  animation: rotate 30s linear infinite;
  pointer-events: none;
  z-index: 0;
}

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  position: relative;
  z-index: 1;
}

/* Typography */
h1 {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 30px;
  letter-spacing: -0.5px;
}

h3 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

/* Links */
a {
  color: white;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.8;
}

/* Buttons */
.btn, .back-link {
  display: inline-block;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-align: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

.btn:hover, .back-link:hover {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.2) 100%);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* Cards */
.card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  padding: 50px 40px;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

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

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

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 24px;
  }

  .container {
    padding: 40px 20px;
  }

  .card {
    padding: 40px 30px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 36px;
  }

  .btn, .back-link {
    padding: 12px 24px;
    font-size: 14px;
  }
}

/* Footer */
.footer {
  text-align: center;
  padding: 40px 20px;
  opacity: 0.8;
}

.footer a {
  color: white;
  opacity: 0.9;
  text-decoration: none;
  margin: 0 10px;
}

.footer a:hover {
  opacity: 1;
}