:root {
  --bg-color: #0d0f14;
  --surface-color: #1a1d24;
  --accent-color: #f39c12; /* Traveller Amber */
  --accent-glow: rgba(243, 156, 18, 0.3);
  --text-primary: #e0e6ed;
  --text-secondary: #94a3b8;
  --border-color: #2d333d;
  --success-color: #2ecc71;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(circle at 50% 50%, rgba(20, 24, 32, 1) 0%, rgba(13, 15, 20, 1) 100%),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3 %3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
}

header {
  padding: 2rem;
  text-align: center;
  border-bottom: 2px solid var(--border-color);
  background: rgba(26, 29, 36, 0.8);
  backdrop-filter: blur(10px);
}

h1 {
  font-size: 2.5rem;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
  color: var(--accent-color);
  text-shadow: 0 0 15px var(--accent-glow);
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

main {
  flex: 1;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem;
}

.search-container {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.input-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05rem;
}

input {
  background: #0d0f14;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.8rem;
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.2s ease;
}

input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

button {
  background: var(--accent-color);
  color: #000;
  border: none;
  border-radius: 6px;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
}

button:hover {
  filter: brightness(1.2);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px var(--accent-glow);
}

#results-area {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  animation: slideIn 0.4s ease-out;
}

.world-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--border-color);
}

.uwp-tag {
  font-family: var(--font-mono);
  background: #2d333d;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  color: var(--accent-color);
}

.trade-codes-list {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.code-badge {
  font-size: 0.75rem;
  background: rgba(243, 156, 18, 0.1);
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.profit-high { color: var(--success-color); font-weight: bold; }
.profit-very-high { color: var(--success-color); font-weight: bold; text-shadow: 0 0 10px rgba(46, 204, 113, 0.3); }

footer {
  padding: 2rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  border-top: 1px solid var(--border-color);
}

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

.loading-spinner {
  text-align: center;
  padding: 2rem;
  color: var(--accent-color);
}

.hidden { display: none; }