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

:root {
  --bg-page: #0b0d10;
  --bg-surface: #14171d;
  --bg-surface-elevated: #1c212a;
  --border: #262c37;
  --border-focus: #ccff00;
  --text-main: #f0f3f6;
  --text-muted: #959fae;
  --accent-lime: #ccff00;
  --accent-lime-dim: rgba(204, 255, 0, 0.12);
  --error: #ff5252;
  --error-bg: rgba(255, 82, 82, 0.1);
  --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

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

body {
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Top Navigation */
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background-color: rgba(20, 23, 29, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-title {
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.badge {
  background: var(--accent-lime);
  color: #000;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: var(--accent-lime);
}

.scan-pill {
  font-family: var(--font-mono);
  background: var(--bg-surface-elevated);
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text-main) !important;
}

/* Main Shell */
.shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Hero Section */
.hero-card {
  display: grid;
  grid-template-columns: 360px 1fr;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.hero-visual {
  background: #050608;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-content {
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.kicker {
  font-size: 0.8rem;
  color: var(--accent-lime);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

h1 {
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.lede {
  color: var(--text-muted);
  font-size: 0.98rem;
}

.meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1.25rem;
  background: var(--bg-surface-elevated);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 0.5rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.meta-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.meta-value {
  font-size: 0.92rem;
  font-weight: 500;
}

.meta-value.highlight {
  color: var(--accent-lime);
  font-size: 1.25rem;
  font-family: var(--font-mono);
  font-weight: 700;
}

.status-badge {
  font-size: 0.82rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.disclaimer-callout {
  font-size: 0.82rem;
  color: var(--text-muted);
  border-left: 3px solid var(--accent-lime);
  padding-left: 0.85rem;
  line-height: 1.45;
}

/* Two column layout */
.grid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-header h2 {
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.panel-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-size: 0.85em;
  color: #e0f2fe;
}

.chip {
  background: var(--bg-surface-elevated);
  font-family: var(--font-mono);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

/* Inspector */
.lookup-box {
  background: var(--bg-surface-elevated);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
}

.input-action-row {
  display: flex;
  gap: 0.5rem;
}

.mono-input, input, textarea {
  width: 100%;
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.75rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.88rem;
  transition: border-color 0.15s ease;
}

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

input:focus, textarea:focus {
  outline: none;
  border-color: var(--border-focus);
}

.input-hint {
  font-size: 0.74rem;
  color: var(--text-muted);
}

.btn-primary, .btn-secondary, .btn-ghost {
  cursor: pointer;
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.85rem;
  transition: all 0.15s ease;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-lime);
  color: #000;
  padding: 0.65rem 1.15rem;
  font-weight: 600;
}

.btn-primary:hover {
  background: #bbf000;
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
  border: 1px solid var(--border);
  padding: 0.6rem 0.9rem;
}

.btn-secondary:hover {
  border-color: var(--accent-lime);
  color: var(--accent-lime);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}

.btn-ghost:hover {
  color: var(--text-main);
  border-color: var(--text-muted);
}

/* State message */
.state-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg-surface-elevated);
  border-radius: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--accent-lime);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Record Detail */
.record-detail-card {
  background: #171c24;
  border: 1px solid var(--accent-lime);
  border-radius: 8px;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.detail-header h3 {
  font-size: 0.95rem;
  color: var(--accent-lime);
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
}

.detail-row {
  display: flex;
  flex-direction: column;
  font-size: 0.84rem;
  gap: 0.2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-k {
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.detail-v {
  font-family: var(--font-mono);
  word-break: break-all;
}

/* Recent hash list */
.recent-records-section h3 {
  font-size: 0.92rem;
  margin-bottom: 0.6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hash-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  max-height: 280px;
  overflow-y: auto;
}

.hash-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-elevated);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.82rem;
}

.hash-item .mono-tag {
  font-family: var(--font-mono);
  color: #cad4df;
}

.hash-item button {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
}

.empty-state, .error-state {
  padding: 1.25rem;
  border-radius: 8px;
  font-size: 0.88rem;
  text-align: center;
}

.empty-state {
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
}

.error-state {
  background: var(--error-bg);
  border: 1px solid rgba(255, 82, 82, 0.3);
  color: var(--error);
  text-align: left;
}

/* Registration Form */
.registration-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
}

.req {
  color: var(--accent-lime);
}

.field-error {
  color: var(--error);
  font-size: 0.75rem;
  min-height: 1rem;
}

.form-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
}

/* Payload Preview */
.payload-box {
  background: #0d1015;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.payload-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.badge-lime {
  background: var(--accent-lime-dim);
  color: var(--accent-lime);
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
}

.payload-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

pre {
  background: #05070a;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.85rem;
  overflow-x: auto;
}

pre code {
  background: transparent;
  padding: 0;
  color: #79ffe1;
  font-size: 0.8rem;
}

.payload-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.copy-note {
  color: var(--accent-lime);
  font-size: 0.82rem;
}

/* ABI Table */
.reference-section h3 {
  font-size: 1.05rem;
}

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

.abi-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.abi-table th, .abi-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.abi-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
}

.badge-view {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  font-size: 0.72rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.badge-call {
  background: var(--accent-lime-dim);
  color: var(--accent-lime);
  font-size: 0.72rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
}

/* Footer */
.page-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.84rem;
  color: var(--text-muted);
  background: var(--bg-surface);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.footer-inner a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-inner a:hover {
  color: var(--accent-lime);
}

.hidden {
  display: none !important;
}

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

@media (max-width: 860px) {
  .hero-card {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    height: 220px;
  }
  .grid-layout {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}