:root {
  --bg: #0d0d10;
  --panel: #16161c;
  --panel-2: #1d1d25;
  --line: #2b2b36;
  --ink: #e8e8ef;
  --dim: #9a9aab;
  --accent: #7c5cff;
  --ok: #3ecf8e;
  --warn: #ffb457;
  --bad: #ff6b6b;
  --radius: 8px;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 ui-sans-serif, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); }
h1, h2, h3 { margin: 0 0 .5rem; font-weight: 620; letter-spacing: -.01em; }
button { font: inherit; cursor: pointer; }

/* ------------------------------------------------------------- app shell */

.topbar {
  display: flex; align-items: center; gap: .75rem;
  padding: .6rem 1rem; border-bottom: 1px solid var(--line); background: var(--panel);
}
.topbar .brand { font-weight: 700; letter-spacing: -.02em; }
.topbar .brand small { color: var(--dim); font-weight: 400; margin-left: .4rem; }
.topbar .spacer { flex: 1; }
.topbar input.title {
  background: transparent; border: 1px solid transparent; color: var(--ink);
  font: inherit; font-weight: 600; padding: .3rem .5rem; border-radius: 6px; min-width: 18rem;
}
.topbar input.title:hover { border-color: var(--line); }
.topbar input.title:focus { border-color: var(--accent); outline: none; background: var(--bg); }

.btn {
  background: var(--panel-2); color: var(--ink); border: 1px solid var(--line);
  padding: .4rem .75rem; border-radius: 6px;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:disabled { opacity: .45; cursor: not-allowed; border-color: var(--line); background: var(--panel-2); color: var(--dim); }
.btn.sm { padding: .15rem .4rem; font-size: 12px; }
.btn.danger:hover { border-color: var(--bad); color: var(--bad); }

.layout { display: grid; grid-template-columns: 17rem 1fr 15rem; height: calc(100vh - 49px); }
.pane { overflow-y: auto; padding: .75rem; }
.pane + .pane { border-left: 1px solid var(--line); }
.pane h3 { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--dim); }

/* ---------------------------------------------------------------- outline */

.outline { list-style: none; margin: 0; padding: 0; }
.outline li { margin: 0; }
.outline .row {
  display: flex; align-items: center; gap: .4rem;
  padding: .35rem .45rem; border-radius: 6px; cursor: pointer; border: 1px solid transparent;
}
.outline .row:hover { background: var(--panel-2); }
.outline .row.sel { background: var(--panel-2); border-color: var(--accent); }
.outline .row.section { font-weight: 640; margin-top: .35rem; }
.outline .child .row { margin-left: 1rem; }
.outline .label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.outline .sub { display: block; font-size: 11px; color: var(--dim); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--bad); flex: none; }
.dot.ok { background: var(--ok); }
.dot.none { background: var(--line); }
.moves { display: flex; gap: .15rem; opacity: 0; }
.outline .row:hover .moves { opacity: 1; }

/* ------------------------------------------------------------- inspector */

.stage { max-width: 46rem; }
.empty { color: var(--dim); padding: 3rem 1rem; text-align: center; }
.field { margin-bottom: .85rem; }
.field > label { display: block; font-size: 12px; color: var(--dim); margin-bottom: .25rem; }
.field input, .field textarea, .field select {
  width: 100%; background: var(--bg); color: var(--ink);
  border: 1px solid var(--line); border-radius: 6px; padding: .45rem .55rem; font: inherit;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); }
.field textarea { min-height: 5rem; resize: vertical; }
.field input[type="color"] { padding: .15rem; height: 2.2rem; }

.listfield { border: 1px solid var(--line); border-radius: var(--radius); padding: .6rem; }
.listrow { border-bottom: 1px solid var(--line); padding-bottom: .5rem; margin-bottom: .5rem; }
.listrow:last-of-type { border-bottom: none; margin-bottom: .25rem; padding-bottom: 0; }
.listrow .rowhead { display: flex; justify-content: space-between; align-items: center; margin-bottom: .3rem; }
.listrow .rowhead span { font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: .06em; }

.errors { background: rgba(255,107,107,.09); border: 1px solid rgba(255,107,107,.35); border-radius: var(--radius); padding: .5rem .7rem; margin-bottom: .85rem; }
.errors ul { margin: 0; padding-left: 1.1rem; color: var(--bad); font-size: 13px; }

/* --------------------------------------------------------------- palette */

.palette h4 { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--dim); margin: .9rem 0 .35rem; }
.palette button {
  display: flex; align-items: center; gap: .45rem; width: 100%; text-align: left;
  background: var(--panel-2); border: 1px solid var(--line); color: var(--ink);
  padding: .35rem .5rem; border-radius: 6px; margin-bottom: .25rem;
}
.palette button:hover { border-color: var(--accent); }

/* ---------------------------------------------------------------- status */

.statusbar {
  position: fixed; bottom: 0; left: 0; right: 0;
  display: flex; align-items: center; gap: 1rem;
  padding: .4rem 1rem; background: var(--panel); border-top: 1px solid var(--line);
  font-size: 12px; color: var(--dim);
}
.pill { padding: .1rem .5rem; border-radius: 99px; border: 1px solid var(--line); }
.pill.ok { color: var(--ok); border-color: rgba(62,207,142,.4); }
.pill.warn { color: var(--warn); border-color: rgba(255,180,87,.4); }

/* ------------------------------------------------------------ start page */

.center { max-width: 40rem; margin: 3rem auto; padding: 0 1.25rem 4rem; }
.tpl { display: grid; gap: .5rem; margin: 1rem 0; }
.tpl button {
  display: flex; gap: .7rem; align-items: flex-start; text-align: left;
  background: var(--panel); border: 1px solid var(--line); color: var(--ink);
  padding: .7rem .85rem; border-radius: var(--radius);
}
.tpl button:hover, .tpl button.sel { border-color: var(--accent); }
.tpl .ico { font-size: 20px; }
.tpl .tag { color: var(--dim); font-size: 12px; }
.tpl-static {
  display: flex; gap: .7rem; align-items: flex-start;
  background: var(--panel); border: 1px solid var(--line);
  padding: .7rem .85rem; border-radius: var(--radius);
}

/* ---------------------------------------------------------- learner view */

.learn { max-width: 44rem; margin: 0 auto; padding: 2rem 1.25rem 5rem; }
.learn .item { border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.1rem; margin-bottom: .9rem; background: var(--panel); }
.learn .kicker { font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--dim); margin-bottom: .3rem; }
.learn .item h2 { font-size: 17px; }
.learn .body { white-space: pre-wrap; }
.learn ol.qs { padding-left: 1.1rem; }
.learn .opt { color: var(--dim); }
.learn img { max-width: 100%; border-radius: 6px; }
.learn video { width: 100%; border-radius: 6px; background: #000; }
.meta { color: var(--dim); font-size: 12px; }