:root {
  --bg: #071410;
  --rail: #04110d;
  --panel: #0e221c;
  --mint: #3dffa6;
  --ink: #e8fff4;
  --muted: #9ab5a8;
  --line: #1c3d32;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body.app {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  display: grid;
  grid-template-columns: 200px 1fr;
}
a { color: inherit; }
h1, h2 { font-family: Syne, sans-serif; line-height: 1.12; }
.mono { font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--mint); font-weight: 700; }

.rail {
  background: var(--rail);
  border-right: 1px solid var(--line);
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  font-family: Syne, sans-serif;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--mint);
}
.rail nav { display: grid; gap: 8px; }
.rail nav a {
  text-decoration: none;
  padding: 10px 12px;
  border: 1px solid transparent;
  font-weight: 700;
}
.rail nav a.on, .rail nav a:hover { border-color: var(--line); background: var(--panel); }
.rail-foot { margin-top: auto; display: grid; gap: 12px; }
.pulse {
  width: 8px; height: 8px; border-radius: 50%; background: var(--mint);
  box-shadow: 0 0 0 0 rgba(61,255,166,0.6);
  animation: ping 1.8s infinite;
}
@keyframes ping { 70% { box-shadow: 0 0 0 10px rgba(61,255,166,0); } }
.lang { display: flex; border: 1px solid var(--line); }
.lang button {
  flex: 1; border: 0; background: transparent; color: var(--ink);
  padding: 8px; cursor: pointer; font: inherit; font-size: 12px; font-weight: 700;
}
.lang button.active { background: var(--mint); color: var(--bg); }

.workspace { min-width: 0; padding: 28px 28px 48px; }
.command {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 24px;
  margin-bottom: 28px;
}
.command h1 { font-size: clamp(28px, 3.6vw, 44px); margin-top: 8px; }
.cmd-meta {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px 18px;
  font-size: 14px;
}
.cmd-meta p { margin: 6px 0; }
.cmd-meta a { color: var(--mint); }

.hint { color: var(--muted); margin-bottom: 12px; }
.kanban {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 1fr);
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 12px;
  margin-bottom: 36px;
}
.kanban article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  min-height: 260px;
}
.kanban header { color: var(--mint); font-size: 12px; font-weight: 800; letter-spacing: 0.08em; margin-bottom: 10px; }
.kanban h2 { font-size: 20px; margin-bottom: 10px; }
.kanban p { color: var(--muted); font-size: 14px; }
.meter { height: 4px; background: #16352b; margin-top: 18px; }
.meter i { display: block; height: 100%; background: var(--mint); }

.split-ops { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 36px; }
.log {
  background: #04110d;
  border: 1px solid var(--line);
  padding: 22px;
  border-radius: 14px;
}
.log.alt { background: var(--panel); }
.log h2 { font-size: 24px; margin: 10px 0 14px; }
.log ul { padding-left: 18px; color: var(--muted); }
.log li { margin: 8px 0; }

.compose {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 20px;
  background: var(--panel);
  border: 1px solid var(--mint);
  border-radius: 16px;
  padding: 22px;
}
.compose h2 { font-size: 26px; margin: 8px 0; }
.compose p { color: var(--muted); }
form { display: grid; gap: 10px; }
label { display: grid; gap: 4px; font-size: 12px; font-weight: 700; }
input, textarea {
  font: inherit; padding: 10px;
  background: #071a15; color: var(--ink); border: 1px solid var(--line);
}
button[type="submit"] {
  justify-self: start;
  background: var(--mint); color: var(--bg); border: 0;
  padding: 12px 16px; font: inherit; font-weight: 800; cursor: pointer;
}
.note { font-size: 13px; color: var(--muted); }

footer {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  margin-top: 28px; color: var(--muted); font-size: 13px;
}

@media (max-width: 900px) {
  body.app { grid-template-columns: 1fr; }
  .rail { height: auto; position: relative; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .rail nav { display: flex; flex-wrap: wrap; }
  .rail-foot { margin: 0; display: flex; align-items: center; gap: 10px; }
  .command, .split-ops, .compose { grid-template-columns: 1fr; }
}