:root {
  --ink: #16130f;
  --paper: #f3eadc;
  --panel: #221c16;
  --amber: #e39b3a;
  --rule: #3a3128;
  --mute: #b7a894;
}

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--ink);
  color: var(--paper);
  font: 16px/1.45 "Segoe UI", "Iowan Old Style", Palatino, Georgia, serif;
}

a { color: inherit; }

.desk {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.rail {
  background: var(--panel);
  border-right: 1px solid var(--rule);
  padding: 1.4rem 1rem 2rem;
}

.mark {
  display: block;
  font: 700 1.2rem/1 "Iowan Old Style", Palatino, Georgia, serif;
  letter-spacing: 0.04em;
  text-decoration: none;
  margin-bottom: 1.5rem;
  color: var(--amber);
}

.rail nav { display: flex; flex-direction: column; gap: 0.35rem; }
.rail nav a {
  text-decoration: none;
  padding: 0.35rem 0.45rem;
  border-left: 2px solid transparent;
  color: var(--mute);
}
.rail nav a.active, .rail nav a:hover {
  color: var(--paper);
  border-left-color: var(--amber);
}

.rail-note { color: var(--mute); font-size: 0.78rem; margin-top: 2rem; }

.stage { padding: 2rem 2.2rem 4rem; max-width: 980px; }

h1 { font-size: 2rem; margin: 0 0 0.4rem; }
.lede { color: var(--mute); margin: 0 0 1.4rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0.8rem; margin: 1.2rem 0; }
.card, .panel {
  background: #1c1712;
  border: 1px solid var(--rule);
  padding: 1rem 1.1rem;
}
.card strong { display: block; font-size: 1.6rem; color: var(--amber); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.45rem 0.3rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { color: var(--mute); font-weight: 500; font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; }

label { display: block; margin: 0.7rem 0 0.2rem; color: var(--mute); font-size: 0.85rem; }
input, textarea, select {
  width: 100%;
  box-sizing: border-box;
  background: #0f0c0a;
  color: var(--paper);
  border: 1px solid var(--rule);
  padding: 0.45rem 0.55rem;
  font: inherit;
}
textarea { min-height: 7rem; }

button, .btn {
  appearance: none;
  background: var(--amber);
  color: #1a1208;
  border: 0;
  padding: 0.45rem 0.8rem;
  font: 600 0.92rem/1.2 ui-sans-serif, system-ui, sans-serif;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button.ghost { background: transparent; color: var(--paper); border: 1px solid var(--rule); }
.row { display: flex; gap: 0.6rem; flex-wrap: wrap; margin: 1rem 0; }
.warn { color: #f0c36a; }
.err { color: #e07a5f; }
.ok { color: #8fbf7f; }
.pill { display: inline-block; padding: 0.1rem 0.4rem; border: 1px solid var(--rule); font-size: 0.75rem; color: var(--mute); }

@media (max-width: 800px) {
  .desk { grid-template-columns: 1fr; }
  .rail { border-right: 0; border-bottom: 1px solid var(--rule); }
}