:root {
  --black: #080a0f;
  --dark: #0d1117;
  --panel: #161b22;
  --border: #21262d;
  --violet: #8b5cf6;
  --violet2: #a78bfa;
  --vdim: rgba(139, 92, 246, 0.08);
  --white: #e8f4ff;
  --muted: #6e7681;
  --green: #3fb950;
  --red: #f85149;
}

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

.demo-body {
  background: var(--black);
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  min-height: 100vh;
}

.demo-noise {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.018;
  pointer-events: none;
  z-index: 1000;
}

.demo-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.92);
  position: sticky;
  top: 0;
  z-index: 50;
}

.demo-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  letter-spacing: 0.1em;
  color: var(--white);
  text-decoration: none;
}
.demo-logo span { color: var(--violet); }

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

.demo-badge {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--violet);
  border: 1px solid rgba(139, 92, 246, 0.35);
  background: var(--vdim);
  padding: 6px 12px;
}

.demo-meta {
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  color: var(--muted);
}

.demo-email {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
}

.demo-link {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--violet);
  text-decoration: none;
}
.demo-link:hover { color: var(--violet2); }

.demo-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 28px 80px;
  position: relative;
  z-index: 2;
}

.demo-narrow { max-width: 440px; }

.demo-h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  letter-spacing: 0.04em;
  line-height: 1;
  margin-bottom: 16px;
}

.demo-h1-sm { font-size: clamp(1.8rem, 4vw, 2.4rem); }

.demo-lead {
  color: var(--muted);
  font-weight: 300;
  margin-bottom: 32px;
  max-width: 640px;
}

.demo-alert {
  padding: 14px 16px;
  margin-bottom: 20px;
  font-size: 0.92rem;
  border: 1px solid var(--border);
}
.demo-alert-err {
  border-color: rgba(248, 81, 73, 0.4);
  background: rgba(248, 81, 73, 0.08);
  color: #ffb4b0;
}

.demo-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.demo-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.demo-input {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  padding: 14px 16px;
  width: 100%;
  outline: none;
}
.demo-input:focus { border-color: var(--violet); }

.demo-btn {
  font-family: 'DM Mono', monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 24px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.demo-btn-primary {
  background: var(--violet);
  color: #fff;
}
.demo-btn-primary:hover { background: var(--violet2); }

.demo-foot {
  margin-top: 28px;
  font-size: 0.9rem;
  color: var(--muted);
}
.demo-foot a { color: var(--violet); }

.demo-mono {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.demo-trade-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.demo-trade-wrap {
  background: var(--dark);
  border: 1px solid var(--border);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.2s, transform 0.15s;
}
.demo-trade-wrap:hover {
  border-color: rgba(139, 92, 246, 0.45);
  transform: translateY(-2px);
}

.demo-trade-card {
  background: var(--dark);
  border: 1px solid var(--border);
  padding: 24px 22px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.2s, transform 0.15s;
}
.demo-trade-card:hover {
  border-color: rgba(139, 92, 246, 0.45);
  transform: translateY(-2px);
}

.demo-trade-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  color: var(--white);
}

.demo-trade-blurb {
  font-size: 0.88rem;
  color: var(--muted);
  font-weight: 300;
  flex: 1;
}

.demo-trade-go {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  color: var(--violet);
  letter-spacing: 0.06em;
}

.demo-trade-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.demo-trade-actions a {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--border);
  color: var(--muted);
  transition: border-color 0.2s, color 0.2s;
}
.demo-trade-actions a:hover {
  border-color: var(--violet);
  color: var(--violet);
}
.demo-trade-actions a.primary {
  background: var(--violet);
  border-color: var(--violet);
  color: #fff;
}
.demo-trade-actions a.primary:hover {
  background: var(--violet2);
  border-color: var(--violet2);
  color: #fff;
}

.demo-ledger-section {
  margin-bottom: 48px;
}
.demo-ledger-h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  color: var(--white);
  margin-bottom: 8px;
}
.demo-ledger-sub {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 300;
  margin-bottom: 16px;
  max-width: 720px;
  line-height: 1.6;
}
.demo-ledger-empty {
  color: var(--muted);
  font-size: 0.9rem;
  padding: 16px;
  border: 1px dashed var(--border);
}
.demo-ledger-table td {
  font-size: 0.86rem;
}
.demo-pill {
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.demo-pill-draft,
.demo-pill-sent {
  border-color: rgba(251, 191, 36, 0.35);
  color: #fbbf24;
}
.demo-pill-approved,
.demo-pill-paid {
  border-color: rgba(63, 185, 80, 0.35);
  color: var(--green);
}
.demo-pill-declined,
.demo-pill-expired,
.demo-pill-void {
  border-color: rgba(110, 118, 129, 0.5);
  color: var(--muted);
}
.demo-pill-open,
.demo-pill-partial {
  border-color: rgba(139, 92, 246, 0.45);
  color: var(--violet);
}

.demo-workspace {
  background: var(--dark);
  border: 1px solid var(--border);
  overflow: hidden;
}

.demo-ws-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
  padding: 28px 28px 20px;
  border-bottom: 1px solid var(--border);
}

.demo-ws-total {
  text-align: right;
}
.demo-ws-total strong {
  display: block;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  color: var(--violet);
  letter-spacing: 0.04em;
}

.demo-table-wrap { overflow-x: auto; }

.demo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.demo-table th {
  text-align: left;
  padding: 12px 18px;
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.demo-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(33, 38, 45, 0.8);
  color: var(--muted);
}

.demo-table td:first-child,
.demo-table td:nth-child(2) {
  color: var(--white);
}

.demo-num { text-align: right; font-family: 'DM Mono', monospace; }

.demo-code { font-family: 'DM Mono', monospace; font-size: 0.82rem; }

.demo-tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.62rem;
  text-transform: uppercase;
  color: var(--violet);
}

.demo-ws-note {
  padding: 22px 28px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--muted);
  font-weight: 300;
}
.demo-ws-note strong { color: var(--white); font-weight: 500; }

@media (max-width: 600px) {
  .demo-ws-head { flex-direction: column; align-items: flex-start; }
  .demo-ws-total { text-align: left; }
}