:root {
  --bg: #ffffff;
  --bg-secondary: #f8f9fa;
  --text: #1a1a2e;
  --text-secondary: #6c757d;
  --border: #e9ecef;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --positive: #16a34a;
  --card-bg: #ffffff;
  --code-bg: #f1f3f5;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --radius: 8px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --bg-secondary: #1e293b;
    --text: #e2e8f0;
    --text-secondary: #94a3b8;
    --border: #334155;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --positive: #4ade80;
    --card-bg: #1e293b;
    --code-bg: #0f172a;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  padding: 48px 0 32px;
  text-align: center;
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto;
}

.badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  margin-left: 8px;
  vertical-align: middle;
}

/* Network Tabs */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 4px;
  width: fit-content;
}

.tab {
  padding: 8px 20px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  background: var(--card-bg);
  color: var(--text);
  box-shadow: var(--shadow);
}

/* Sections */
section {
  margin-bottom: 40px;
}

section h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead {
  background: var(--bg-secondary);
}

th {
  text-align: left;
  padding: 10px 16px;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

td {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  white-space: nowrap;
}

tr:hover td {
  background: var(--bg-secondary);
}

.price {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.pool-value {
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.address {
  font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace;
  font-size: 0.7rem;
  color: var(--text-secondary);
  word-break: break-all;
  white-space: normal;
  max-width: 240px;
  min-width: 120px;
}

/* Copyable cells */
.copyable {
  cursor: pointer;
  position: relative;
  transition: background 0.15s;
}

.copyable:hover {
  background: var(--accent) !important;
  color: #fff;
}

.copyable.copied::after {
  content: 'Copied!';
  position: absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
}

/* Section subtitle */
.section-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

/* Steps */
.steps {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.step {
  display: flex;
  align-items: center;
  gap: 10px;
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-text {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
}

/* Formula cards */
.formula-cards {
  display: grid;
  gap: 12px;
}

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 12px;
}

/* Code blocks */
code {
  font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace;
  font-size: 0.8rem;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 16px;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.5;
}

.copy-btn {
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  margin-top: 8px;
  transition: all 0.15s;
}

.copy-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Download links */
.downloads {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.dl-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.15s;
}

.dl-link:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Updated timestamp */
.updated {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin: 8px 0;
}

/* Footer */
footer {
  padding: 32px 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Loading / error states */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 8px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 640px) {
  header {
    padding: 32px 0 24px;
  }
  header h1 {
    font-size: 1.5rem;
  }
  .tabs {
    width: 100%;
  }
  .tab {
    flex: 1;
    text-align: center;
  }
}