@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
  --maxw: 1200px;
  --primary: #d4af37;
  --primary-dark: #b8860b;
  --primary-light: #f4e4a6;
  --secondary: #8b0000;
  --accent: #cd7f32;
  --text: #1a202c;
  --text-light: #4a5568;
  --text-muted: #718096;
  --bg: #f7fafc;
  --bg-light: #ffffff;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 12px;
  --radius-lg: 16px;
}

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

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-light);
  position: static;
  top: auto;
  z-index: auto;
  box-shadow: var(--shadow);
  padding: 20px 0;
}

.wrap { 
  max-width: var(--maxw); 
  margin: 0 auto; 
  padding: 0 24px; 
}

.brand { 
  display: flex; 
  align-items: center; 
  gap: 16px; 
  margin-bottom: 20px;
}

.brand h2 { 
  font-size: 32px; 
  font-weight: 800; 
  margin: 0; 
  color: var(--primary-dark); 
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand svg { 
  transition: var(--transition); 
  filter: drop-shadow(0 2px 4px rgba(212, 175, 55, 0.2));
}

.brand:hover svg { 
  transform: scale(1.05) rotate(2deg); 
}

.pill { 
  display: inline-block; 
  padding: 8px 16px; 
  border-radius: 50px; 
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)); 
  color: white; 
  font-size: 14px; 
  font-weight: 600; 
  box-shadow: var(--shadow);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.toolbar { 
  display: grid; 
  grid-template-columns: 1fr auto; 
  gap: 20px; 
  align-items: center;
}

.muted { 
  color: var(--text-muted); 
  font-size: 15px; 
  font-weight: 400;
}

main { 
  padding: 40px 0; 
}

main .section { 
  background: var(--bg-card); 
  border: 1px solid var(--border-light); 
  border-radius: var(--radius-lg); 
  padding: 32px; 
  margin: 24px 0; 
  box-shadow: var(--shadow); 
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

main .section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  opacity: 0;
  transition: var(--transition);
}

main .section:hover { 
  transform: translateY(-4px); 
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

main .section:hover::before {
  opacity: 1;
}

h1 {
  font-size: 48px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

h2 { 
  margin: 0 0 24px; 
  font-size: 28px; 
  font-weight: 700; 
  color: var(--text); 
  position: relative; 
  padding-bottom: 12px;
  letter-spacing: -0.01em;
}

h2::after { 
  content: ''; 
  position: absolute; 
  bottom: 0; 
  left: 0; 
  width: 60px; 
  height: 4px; 
  background: linear-gradient(90deg, var(--primary), var(--primary-dark)); 
  border-radius: 2px;
}

h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
}

table { 
  width: 100%; 
  border-collapse: collapse; 
  margin-top: 20px; 
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

th, td { 
  padding: 16px 20px; 
  border-bottom: 1px solid var(--border-light); 
  text-align: left; 
  font-size: 15px;
}

th { 
  background: linear-gradient(135deg, var(--bg), var(--border-light)); 
  font-weight: 600; 
  color: var(--text); 
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  font-weight: 500;
}

tr:last-child td {
  border-bottom: none;
}

.grid { 
  display: grid; 
  gap: 24px; 
}

@media(min-width: 900px){ 
  .grid-2 { 
    grid-template-columns: 1fr 1fr; 
  } 
}

.calc-row { 
  display: grid; 
  gap: 16px; 
  grid-template-columns: 1.3fr 1fr 1fr; 
  margin-top: 24px; 
}

input, select, button { 
  padding: 16px 20px; 
  border: 2px solid var(--border-light); 
  border-radius: var(--radius); 
  font-size: 16px; 
  font-family: 'Poppins', sans-serif;
  background: var(--bg-card); 
  transition: var(--transition);
  font-weight: 500;
}

input:focus, select:focus, button:focus { 
  outline: none; 
  border-color: var(--primary); 
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.1); 
  transform: translateY(-1px);
}

button { 
  cursor: pointer; 
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)); 
  color: white; 
  font-weight: 600; 
  border: none;
  font-size: 16px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

button:hover { 
  transform: translateY(-2px); 
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.stat-cards { 
  display: grid; 
  gap: 20px; 
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); 
  margin-top: 24px; 
}

.card { 
  background: var(--bg-card); 
  border: 2px solid var(--border-light); 
  border-radius: var(--radius-lg); 
  padding: 24px; 
  text-align: center; 
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  transform: scaleX(0);
  transition: var(--transition);
}

.card:hover { 
  transform: translateY(-6px); 
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

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

.card h3 { 
  margin: 0 0 12px; 
  font-size: 16px; 
  font-weight: 600; 
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card p { 
  margin: 0; 
  font-size: 24px; 
  font-weight: 800; 
  color: var(--text);
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.small { 
  font-size: 14px; 
  color: var(--text-muted); 
  margin: 0 0 8px; 
  font-weight: 500;
}

footer { 
  color: var(--text-muted); 
  padding: 48px 0; 
  text-align: center; 
  background: var(--bg-card);
  border-top: 1px solid var(--border-light);
  margin-top: 60px;
}

.note { 
  background: linear-gradient(135deg, #fff7ed, #fef3c7); 
  border: 2px solid #fed7aa; 
  color: #7c2d12; 
  padding: 20px 24px; 
  border-radius: var(--radius-lg); 
  margin: 32px 0; 
  font-size: 15px;
  font-weight: 500;
  box-shadow: var(--shadow);
}

details { 
  margin: 16px 0; 
  padding: 20px; 
  background: var(--bg-card); 
  border-radius: var(--radius); 
  border: 2px solid var(--border-light);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

details:hover {
  border-color: var(--primary-light);
  transform: translateY(-1px);
}

summary { 
  font-weight: 600; 
  cursor: pointer; 
  list-style: none; 
  display: flex; 
  align-items: center; 
  gap: 12px;
  font-size: 16px;
  color: var(--text);
}

summary::marker { 
  content: "▶"; 
  font-size: 12px; 
  color: var(--primary);
}

details[open] summary::marker { 
  content: "▼"; 
}

.fade-in { 
  animation: fadeIn 0.6s ease-out; 
}

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

.gold-icon { 
  color: var(--primary); 
  margin-right: 8px; 
  font-size: 18px;
}

.silver-icon { 
  color: #a9a9a9; 
  margin-right: 8px; 
  font-size: 18px;
}

.update-indicator { 
  display: inline-flex; 
  align-items: center; 
  gap: 8px; 
  font-size: 14px;
  font-weight: 500;
}

.update-dot { 
  width: 10px; 
  height: 10px; 
  background: #10b981; 
  border-radius: 50%; 
  animation: pulse 2s infinite;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
}

@keyframes pulse { 
  0% { 
    opacity: 1; 
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  } 
  70% { 
    opacity: 0.7; 
    box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
  } 
  100% { 
    opacity: 1; 
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  } 
}

@media (max-width: 768px) {
  .wrap {
    padding: 0 16px;
  }
  
  .brand h2 { 
    font-size: 18px; 
  }
  
  h1 {
    font-size: 22px;
  }
  
  h2 { 
    font-size: 22px; 
  }
  
  .calc-row { 
    grid-template-columns: 1fr; 
  }
  
  .toolbar { 
    grid-template-columns: 1fr; 
    gap: 16px;
  }
  
  main .section {
    padding: 24px 20px;
    margin: 16px 0;
  }
  
  .stat-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .card {
    padding: 20px;
  }
  
  input, select, button {
    padding: 14px 16px;
    font-size: 15px;
  }
}