@font-face {
  font-family: 'Geist';
  src: url('https://musechain.io/fonts/geist/geist-latin-wght-normal.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --bg-color: #0c0e12;
  --panel-bg: #14181f;
  --card-bg: #181d26;
  --card-border: #262e3d;
  --card-hover: #1f2633;
  --text-main: #f0f3f8;
  --text-muted: #8b98a9;
  --text-subtle: #5f6b7d;
  --lime: #ccff00;
  --lime-glow: rgba(204, 255, 0, 0.15);
  --lime-dim: rgba(204, 255, 0, 0.08);
  --blue: #38bdf8;
  --blue-dim: rgba(56, 189, 248, 0.1);
  --amber: #fbbf24;
  --amber-dim: rgba(251, 191, 36, 0.1);
  --red: #f87171;
  --red-dim: rgba(248, 113, 113, 0.1);
  --purple: #c084fc;
  --purple-dim: rgba(192, 132, 252, 0.1);
  --font-family: 'Geist', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 60px;
}

a {
  color: var(--lime);
  text-decoration: none;
  transition: opacity 0.2s;
}
a:hover {
  text-decoration: underline;
}

.monospace {
  font-family: var(--font-mono);
}

/* Nav */
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: rgba(20, 24, 31, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.office-badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: var(--lime-dim);
  color: var(--lime);
  border: 1px solid var(--lime);
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.tool-title {
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tool-title .tag {
  font-size: 10px;
  padding: 1px 5px;
  background: var(--card-border);
  border-radius: 3px;
  color: var(--text-muted);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-link {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}
.nav-link:hover {
  color: var(--text-main);
  text-decoration: none;
}
.nav-link.ext {
  color: var(--lime);
}

/* Container */
.container {
  max-width: 1080px;
  margin: 32px auto;
  padding: 0 20px;
}

/* Hero Card */
.hero-card {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  background: var(--panel-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 36px;
  align-items: center;
  margin-bottom: 32px;
}

.pill-lime {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--lime);
  margin-bottom: 12px;
}

.hero-card h1 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hero-card .lead {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 20px;
}

.rule-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.rule-chip {
  font-size: 12px;
  font-weight: 500;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 4px 10px;
  border-radius: 6px;
}

.hero-image-wrap {
  display: flex;
  justify-content: center;
}

.hero-img {
  width: 100%;
  max-height: 240px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--card-border);
}

/* Tab Control Panel */
.panel-section {
  background: var(--panel-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 32px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 16px;
}

.panel-header h2 {
  font-size: 20px;
  font-weight: 700;
}

.subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.tab-controls {
  display: flex;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 3px;
  border-radius: 8px;
  gap: 2px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 7px 14px;
  font-size: 13px;
  font-family: inherit;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

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

.tab-btn.active {
  background: var(--lime);
  color: #0c0e12;
  font-weight: 700;
}

/* State Block */
.state-block {
  display: none;
}
.state-block.active {
  display: block;
}

/* Meta Strip */
.meta-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.meta-label {
  font-size: 11px;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.meta-val {
  font-size: 13px;
  color: var(--text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copyable {
  cursor: pointer;
}
.copyable:hover {
  color: var(--lime);
}

.status-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  width: fit-content;
}

.status-verified {
  background: var(--lime-dim);
  color: var(--lime);
  border: 1px solid rgba(204, 255, 0, 0.4);
}

.status-unverified {
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid rgba(248, 113, 113, 0.4);
}

.status-malformed {
  background: var(--amber-dim);
  color: var(--amber);
  border: 1px solid rgba(251, 191, 36, 0.4);
}

.scan-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--lime);
}

/* Safety Banner */
.safety-banner {
  display: flex;
  gap: 12px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 28px;
  font-size: 13px;
  line-height: 1.45;
  color: #cce9ff;
}

.safety-icon {
  font-size: 18px;
}

/* ABI Groups */
.abi-group {
  margin-bottom: 28px;
}

.group-heading {
  margin-bottom: 14px;
}

.type-pill {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 4px;
}

.read-pill {
  background: var(--blue-dim);
  color: var(--blue);
  border: 1px solid var(--blue);
}

.write-pill {
  background: var(--amber-dim);
  color: var(--amber);
  border: 1px solid var(--amber);
}

.event-pill {
  background: var(--purple-dim);
  color: var(--purple);
  border: 1px solid var(--purple);
}

.group-heading h3 {
  font-size: 17px;
  font-weight: 700;
}

.group-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 16px;
}

.method-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 18px;
}

.method-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
}

.fn-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  display: block;
}

.sig {
  font-size: 12px;
  color: var(--text-muted);
  word-break: break-all;
}

.badge-read {
  font-size: 11px;
  background: var(--blue-dim);
  color: var(--blue);
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}

.badge-write {
  font-size: 11px;
  background: var(--amber-dim);
  color: var(--amber);
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}

.badge-event {
  font-size: 11px;
  background: var(--purple-dim);
  color: var(--purple);
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}

.method-notes {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.type-explanation {
  background: rgba(0, 0, 0, 0.25);
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 12px;
  font-size: 12px;
}

.param-title {
  display: block;
  font-weight: 700;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.type-list {
  padding-left: 18px;
  color: var(--text-main);
}
.type-list li {
  margin-bottom: 2px;
}

.t-type {
  font-family: var(--font-mono);
  color: var(--lime);
  background: rgba(204, 255, 0, 0.06);
  padding: 1px 4px;
  border-radius: 3px;
}

.no-args {
  color: var(--text-subtle);
  font-style: italic;
}

/* Code Previews */
.code-box {
  background: #090b0e;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 10px;
}

.code-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #111419;
  padding: 6px 10px;
  font-size: 11px;
  color: var(--text-subtle);
  border-bottom: 1px solid var(--card-border);
}

.copy-btn {
  background: var(--card-border);
  border: none;
  color: var(--text-main);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
}
.copy-btn:hover {
  background: var(--lime);
  color: #000;
}

pre {
  margin: 0;
  padding: 10px 12px;
  overflow-x: auto;
  font-size: 12px;
  line-height: 1.4;
  color: #e2e8f0;
}

.exec-warning {
  font-size: 11px;
  color: var(--text-subtle);
  font-style: italic;
}
.exec-warning.alert {
  color: var(--amber);
  font-style: normal;
}

/* Alert Boxes for Unverified and Malformed */
.alert-box {
  border-radius: 8px;
  padding: 20px;
}
.alert-box h4 {
  font-size: 16px;
  margin-bottom: 8px;
}
.alert-box p {
  font-size: 13px;
  margin-bottom: 14px;
}

.alert-danger {
  background: var(--red-dim);
  border: 1px solid rgba(248, 113, 113, 0.4);
  color: #ffccd0;
}
.alert-danger h4 {
  color: var(--red);
}

.alert-warning {
  background: var(--amber-dim);
  border: 1px solid rgba(251, 191, 36, 0.4);
  color: #ffe8b5;
}
.alert-warning h4 {
  color: var(--amber);
}

.guidance-block {
  background: rgba(0, 0, 0, 0.3);
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 13px;
}
.guidance-block ol, .guidance-block ul {
  padding-left: 20px;
  margin-top: 6px;
}
.guidance-block li {
  margin-bottom: 4px;
}

/* Architecture Card */
.architecture-card {
  background: var(--panel-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 28px;
  margin-bottom: 40px;
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.card-head h2 {
  font-size: 18px;
}

.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.flow-step {
  display: flex;
  gap: 16px;
  background: var(--card-bg);
  padding: 18px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
}

.step-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--lime);
  font-family: var(--font-mono);
}

.step-text h3 {
  font-size: 15px;
  margin-bottom: 6px;
}
.step-text p {
  font-size: 13px;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--card-border);
  padding-top: 24px;
  font-size: 12px;
  color: var(--text-subtle);
  flex-wrap: wrap;
  gap: 16px;
}
.footer-right {
  display: flex;
  gap: 16px;
}
.subtle {
  font-size: 11px;
  margin-top: 2px;
}

@media (max-width: 768px) {
  .hero-card {
    grid-template-columns: 1fr;
  }
  .grid-2col {
    grid-template-columns: 1fr;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
}