@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-primary: #ffffff;
  --bg-secondary: #f6f7f9;
  --bg-tertiary: #ebedf0;
  --text-main: #111418;
  --text-muted: #5e6673;
  --border: #dcdfe4;
  --border-light: #eaedf2;
  --accent-lime: #ccff00;
  --accent-lime-dim: #b8e600;
  --accent-lime-soft: #f4fce3;
  --diff-add-bg: #e6f9ed;
  --diff-add-text: #0e7039;
  --diff-sub-bg: #fde8e8;
  --diff-sub-text: #b91c1c;
  --diff-neutral-bg: #f3f4f6;
  --diff-neutral-text: #374151;
  --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'GeistMono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
}

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

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

code, pre {
  font-family: var(--font-mono);
}

a {
  color: var(--text-main);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: #000;
  background-color: var(--accent-lime);
}

/* Navigation */
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 28px;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

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

.brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-size: 15px;
  color: var(--text-main);
}

.avatar-dot {
  width: 10px;
  height: 10px;
  background-color: var(--accent-lime);
  border-radius: 50%;
  border: 2px solid var(--text-main);
}

.badge {
  font-size: 11px;
  font-weight: 700;
  background-color: var(--text-main);
  color: var(--accent-lime);
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 16px;
  font-size: 13px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
}
.nav-links a:hover {
  color: var(--text-main);
  background: transparent;
  text-decoration: underline;
}

/* Main Container */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 40px 24px 80px 24px;
}

/* Hero Section */
.hero-card {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  gap: 36px;
  padding: 36px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 48px;
  align-items: center;
}

.pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.2); }
}

.hero-card h1 {
  font-size: 34px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.lead {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 22px;
}

.lead code {
  background-color: #e5e8ec;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
}

.security-banner {
  display: flex;
  gap: 14px;
  background-color: var(--accent-lime-soft);
  border: 1px solid #d4f276;
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: #274400;
}

.security-icon {
  font-size: 20px;
  line-height: 1;
}

.hero-visual {
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  background-color: #ffffff;
  box-shadow: var(--shadow-sm);
}

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

/* Demo / Sandbox Section */
.demo-section {
  margin-bottom: 56px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 16px;
}

.section-header h2 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.subtext {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

.state-switcher {
  display: flex;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  gap: 4px;
}

.state-btn {
  background: transparent;
  border: none;
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.15s ease;
}

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

.state-btn.active {
  background-color: var(--text-main);
  color: var(--accent-lime);
}

/* The Component Frame */
.component-frame {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.frame-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 12px;
}

.action-picker {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.label-mono {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.target-chip {
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  background-color: #ffffff;
  border: 1px solid var(--border);
  padding: 4px 8px;
  border-radius: 4px;
}

.method-tag {
  font-size: 12px;
  font-family: var(--font-mono);
  background-color: var(--text-main);
  color: var(--accent-lime);
  padding: 4px 8px;
  border-radius: 4px;
}

.exec-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 20px;
  background-color: #e5fbe9;
  color: #0e7039;
  border: 1px solid #b7edc5;
}

.exec-badge.status-fail {
  background-color: #feefef;
  color: #b91c1c;
  border-color: #fccacb;
}

.exec-badge.status-pending {
  background-color: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}

.exec-badge.status-idle {
  background-color: #f3f4f6;
  color: #4b5563;
  border-color: #e5e7eb;
}

.exec-badge .status-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

/* Component Body Layout */
.frame-body {
  padding: 24px;
  min-height: 290px;
}

/* Diff Table */
.diff-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.diff-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background-color: #fafbfc;
}

.diff-table td {
  padding: 12px;
  font-size: 13px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}

.diff-key {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
}

.diff-key-sub {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 400;
}

.val-box {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
}

.val-before {
  background-color: var(--diff-neutral-bg);
  color: var(--diff-neutral-text);
}

.val-after {
  background-color: var(--diff-add-bg);
  color: var(--diff-add-text);
  font-weight: 600;
}

.delta-badge {
  font-size: 11px;
  font-weight: 700;
  background-color: var(--accent-lime);
  color: #000;
  padding: 2px 6px;
  border-radius: 10px;
  margin-left: 6px;
}

/* Event Panel */
.events-section {
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.events-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.events-count {
  background-color: var(--bg-tertiary);
  color: var(--text-main);
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 10px;
}

.event-item {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--accent-lime-dim);
  border-radius: 6px;
  padding: 10px 14px;
  margin-bottom: 8px;
  font-size: 12px;
  font-family: var(--font-mono);
}

.event-name {
  font-weight: 700;
  color: var(--text-main);
}

.event-args {
  color: var(--text-muted);
  margin-top: 4px;
}

/* Component Empty / Loading / Failed States */
.state-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 20px;
}

.state-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
}

.state-container h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.state-container p {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 440px;
  line-height: 1.5;
}

/* Spinner */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--text-main);
  border-right-color: var(--accent-lime);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 16px;
}

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

/* Error Box in Fail State */
.error-diagnostics {
  margin-top: 14px;
  background-color: #fef2f2;
  border: 1px solid #fee2e2;
  color: #991b1b;
  padding: 10px 14px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: left;
}

/* Frame Footer */
.frame-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  font-size: 12px;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-meta {
  display: flex;
  gap: 16px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.footer-meta code {
  color: var(--text-main);
}

.scan-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 12px;
  background-color: #ffffff;
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.scan-link:hover {
  background-color: var(--accent-lime);
  border-color: #000;
  color: #000;
}

/* Spec Grid */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.spec-card {
  padding: 24px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.card-icon {
  font-size: 11px;
  font-weight: 800;
  font-family: var(--font-mono);
  background-color: var(--text-main);
  color: var(--accent-lime);
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.spec-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.spec-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.spec-list {
  padding-left: 18px;
  font-size: 13px;
  color: var(--text-muted);
}

.spec-list li {
  margin-bottom: 6px;
}

.spec-list strong {
  color: var(--text-main);
}

/* Schema Block */
.schema-section {
  background-color: #111418;
  color: #f1f3f5;
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 48px;
}

.schema-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  border-bottom: 1px solid #2a3038;
  padding-bottom: 12px;
}

.schema-header h3 {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}

.file-label {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--accent-lime);
}

.schema-section pre {
  overflow-x: auto;
  font-size: 12px;
  line-height: 1.6;
  color: #d1d5db;
}

/* Page Footer */
.page-footer {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

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

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

.footer-links a:hover {
  color: var(--text-main);
  background: transparent;
  text-decoration: underline;
}

@media (max-width: 840px) {
  .hero-card {
    grid-template-columns: 1fr;
  }
  .spec-grid {
    grid-template-columns: 1fr;
  }
  .top-nav {
    padding: 12px 16px;
  }
  .container {
    padding: 24px 16px;
  }
}