:root {
  --bg: #0b1020;
  --bar: #151b30;
  --panel: #141a30;
  --amber: #f5b942;
  --ink: #eef1f8;
  --muted: #9aa3bc;
  --line: #2a3354;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Space Grotesk", system-ui, sans-serif;
  background: #060914;
  color: var(--ink);
  min-height: 100vh;
  padding: 16px;
}
a { color: var(--amber); }
.mono { font-family: "IBM Plex Mono", monospace; letter-spacing: 0.08em; color: var(--amber); font-size: 12px; }

.window {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--bg);
  border: 1px solid var(--line);
  min-height: calc(100vh - 32px);
  display: flex;
  flex-direction: column;
}
.titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bar);
  border-bottom: 1px solid var(--line);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}
.dots {
  width: 42px; height: 10px;
  background: radial-gradient(circle closest-side, #ff6b6b 90%, transparent 91%) 0 0 / 14px 10px,
    radial-gradient(circle closest-side, #f5b942 90%, transparent 91%) 14px 0 / 14px 10px,
    radial-gradient(circle closest-side, #3dffa6 90%, transparent 91%) 28px 0 / 14px 10px;
}
.lang { display: flex; border: 1px solid var(--line); }
.lang button {
  border: 0; background: transparent; color: var(--ink);
  padding: 6px 10px; cursor: pointer; font: inherit; font-size: 11px; font-weight: 700;
}
.lang button.active { background: var(--amber); color: #111; }

.finder {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 420px;
  flex: 1;
}
.list {
  border-right: 1px solid var(--line);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
#fileSearch {
  font: inherit;
  padding: 10px;
  background: #0b1020;
  color: var(--ink);
  border: 1px solid var(--line);
  margin-bottom: 8px;
  font-family: "IBM Plex Mono", monospace;
}
.file {
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--ink);
  padding: 10px;
  cursor: pointer;
  font: inherit;
  display: grid;
  gap: 2px;
}
.file span { font-family: "IBM Plex Mono", monospace; font-size: 11px; color: var(--amber); }
.file.on, .file:hover { background: var(--panel); border-color: var(--line); }
.file.hide { display: none; }
.preview { padding: 28px 32px; }
.preview h1 { font-size: clamp(28px, 4vw, 42px); margin: 12px 0 16px; }
.preview p { color: var(--muted); font-size: 17px; max-width: 54ch; }

.conveyor {
  border-top: 1px solid var(--line);
  padding: 16px 18px 20px;
  background: #070b16;
}
.conveyor ol {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 10px;
}
.conveyor li {
  border: 1px dashed var(--line);
  padding: 10px;
  font-size: 13px;
  color: var(--muted);
}
.conveyor b { color: var(--amber); display: block; margin-bottom: 4px; font-family: "IBM Plex Mono", monospace; }

.newfile {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 22px;
  border-top: 1px solid var(--line);
}
.newfile h2 { font-size: 24px; margin: 8px 0; }
.newfile p { color: var(--muted); }
form { display: grid; gap: 10px; }
@media (min-width: 800px) {
  form { grid-template-columns: 1fr 1fr; }
  .wide, form button, .note { grid-column: 1 / -1; }
}
label { display: grid; gap: 4px; font-size: 12px; font-weight: 700; }
input, textarea {
  font: inherit; padding: 10px;
  background: #0b1020; color: var(--ink); border: 1px solid var(--line);
}
button[type="submit"] {
  justify-self: start;
  background: var(--amber); color: #111; 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;
  padding: 12px 18px 16px;
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: 12px;
}

@media (max-width: 800px) {
  .finder, .newfile, .conveyor ol { grid-template-columns: 1fr; }
  .list { border-right: 0; border-bottom: 1px solid var(--line); }
}