:root {
  --bg: #1a1814;
  --paper: #e8e0d4;
  --amber: #d4a574;
  --dim: #6b6358;
  --mono: 'Courier Prime', 'Courier New', monospace;
}

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

body {
  font-family: var(--mono);
  background: var(--bg);
  color: var(--paper);
  min-height: 100vh;
  line-height: 1.55;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  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)'/%3E%3C/svg%3E");
  z-index: 0;
}

.nav {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

.nav a {
  color: var(--dim);
  text-decoration: none;
}

.nav a:hover { color: var(--amber); }

.station { color: var(--amber); }

main {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
  padding: 2rem 2rem 4rem;
}

.header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(212, 165, 116, 0.25);
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.5rem;
}

.sub {
  font-size: 0.8rem;
  color: var(--dim);
  letter-spacing: 0.05em;
}

.tape {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(212, 165, 116, 0.2);
  padding: 1.25rem;
  margin-bottom: 2.5rem;
}

.tape-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.decode-btn {
  font-family: var(--mono);
  font-size: 0.7rem;
  background: transparent;
  border: 1px solid var(--amber);
  color: var(--amber);
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  letter-spacing: 0.08em;
}

.decode-btn:hover {
  background: rgba(212, 165, 116, 0.15);
}

.morse {
  font-size: 0.85rem;
  color: var(--dim);
  word-break: break-all;
  line-height: 1.8;
  min-height: 3rem;
}

.decoded {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed rgba(212, 165, 116, 0.3);
  font-size: 0.95rem;
  color: var(--paper);
  line-height: 1.6;
}

.decoded.hidden { display: none; }

.channels { margin-bottom: 2rem; }

.channels h2 {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--dim);
  margin-bottom: 1rem;
}

.channels ul { list-style: none; }

.line-desc {
  font-size: 0.7rem;
  color: var(--dim);
  grid-column: 2;
}

.channels li {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  gap: 0.25rem 0.5rem;
  align-items: center;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(212, 165, 116, 0.1);
  font-size: 0.85rem;
}

.line-id { color: var(--dim); font-size: 0.75rem; }
.line-status { color: var(--amber); font-size: 0.7rem; letter-spacing: 0.1em; }
.line-link {
  color: var(--amber);
  text-decoration: none;
  font-size: 0.75rem;
}

.line-link:hover { text-decoration: underline; }

.metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-bottom: 1.5rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(212, 165, 116, 0.15);
  border-bottom: 1px solid rgba(212, 165, 116, 0.15);
}

.metric {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.metric strong {
  color: var(--amber);
  font-weight: 700;
}

.principles {
  font-size: 0.85rem;
  color: var(--dim);
  margin-bottom: 2.5rem;
  line-height: 1.65;
}

.principles .clients {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  opacity: 0.8;
}

.send {
  padding: 1.5rem 0;
  border-top: 1px solid rgba(212, 165, 116, 0.25);
}

.send-label {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--dim);
  margin-bottom: 0.5rem;
  margin-top: 1rem;
}

.send-label:first-child { margin-top: 0; }

.send-addr {
  font-size: 1.1rem;
  color: var(--amber);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.send-addr:hover { text-decoration: underline; }

footer {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  font-size: 0.7rem;
  color: var(--dim);
  letter-spacing: 0.08em;
}

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

footer a:hover { color: var(--amber); }