:root {
  --primary: #10b981;
  --primary-glow: rgba(16, 185, 129, 0.5);
  --secondary: #059669;
  --bg-dark: #064e3b;
  --card-bg: rgba(6, 78, 59, 0.7);
  --text-main: #f0fdf4;
  --text-muted: #6ee7b7;
  --white: #ffffff;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  margin: 0;
  padding: 40px 20px;
  background-image: 
    radial-gradient(circle at 0% 0%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(52, 211, 153, 0.1) 0%, transparent 50%);
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  line-height: 1.5;
}

header {
  margin-bottom: 60px;
  text-align: center;
  animation: fadeInDown 0.8s ease-out;
}

header h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin: 0;
  background: linear-gradient(to right, #34d399, #10b981);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 30px rgba(16, 185, 129, 0.3));
  letter-spacing: -0.025em;
}

main {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

#history {
  width: 100%;
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 40px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 0.8s ease-out;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 0;
  margin-bottom: 30px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
}

h2::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, rgba(255, 255, 255, 0.1), transparent);
}

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

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

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #475569;
}