:root {
  --bg: #000;
  --fg: #fff;
  --muted: #7a7a7a;
  --line: #262626;
  --line-soft: #161616;
  --accent: #fff;
  --warn: #d9d9d9;
  --danger: #ff4b3e;
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}

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

html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  line-height: 1.4;
}

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }

/* ── Login ─────────────────────────────────────────── */
.login {
  position: fixed; inset: 0; z-index: 100; background: #000;
  display: flex; align-items: center; justify-content: center;
}
.login.hidden { display: none; }
.login-box { display: flex; flex-direction: column; gap: 14px; width: 260px; }
.login-title { font-size: 15px; letter-spacing: 0.42em; text-transform: uppercase; text-align: center; margin-bottom: 8px; }
.login-box input {
  background: transparent; border: 1px solid var(--line); color: #fff;
  padding: 12px 14px; font-family: var(--mono); font-size: 14px; text-align: center; letter-spacing: 0.2em;
}
.login-box input:focus { outline: none; border-color: #fff; }
.login-box .btn { text-align: center; }
.login-err { color: var(--danger); font-size: 12px; text-align: center; min-height: 14px; letter-spacing: 0.08em; }

/* ── Topbar ────────────────────────────────────────── */
.topbar {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 20px 28px; border-bottom: 1px solid var(--line);
}
.brand { font-size: 15px; letter-spacing: 0.42em; text-transform: uppercase; }

.tabs { display: flex; gap: 4px; }
.tab {
  background: transparent; color: var(--muted); border: 1px solid transparent;
  padding: 7px 16px; font-family: var(--font); font-size: 11px;
  letter-spacing: 0.24em; text-transform: uppercase; cursor: pointer;
}
.tab:hover { color: #fff; }
.tab.active { color: #fff; border-color: var(--line); }

.view { display: none; }
.view.active { display: block; }
.hint { font-size: 11px; line-height: 1.6; color: var(--muted); margin-top: 12px; }
.conn { display: flex; align-items: center; gap: 9px; font-size: 12px; letter-spacing: 0.08em; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.dot.on { background: #fff; }
.dot.off { background: var(--danger); }

/* ── Layout ────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1px; background: var(--line);
  min-height: calc(100vh - 62px - 160px);
}
.stage, .panel { background: var(--bg); }

/* ── Stage / Preview ───────────────────────────────── */
.stage { display: flex; flex-direction: column; padding: 20px 24px; }
.stage-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; }
.label { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); }
.stage-wrap { flex: 1; display: flex; align-items: center; justify-content: center; min-height: 320px; }
#preview { width: 100%; height: 100%; max-height: 62vh; }

.state-strip { display: flex; align-items: center; gap: 16px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line-soft); }
.state-badge {
  font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase;
  border: 1px solid var(--line); padding: 5px 12px;
}
.state-badge[data-s="busy"], .state-badge[data-s="armed"] { border-color: #fff; }
.state-badge[data-s="paused"] { border-color: var(--danger); color: var(--danger); }
.state-badge[data-s="error"], .state-badge[data-s="disconnected"] { color: var(--danger); border-color: var(--danger); }

/* ── Panel ─────────────────────────────────────────── */
.panel { padding: 8px 22px 22px; overflow-y: auto; }
.block { padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.block:last-child { border-bottom: none; }
.block-head { font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }

.rows { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.row { display: flex; justify-content: space-between; font-size: 13px; }
.row span:first-child { color: var(--muted); }

/* ToF bar */
.tof-bar { position: relative; height: 4px; background: var(--line); margin-bottom: 16px; }
#tof-fill { position: absolute; left: 0; top: 0; height: 100%; width: 0; background: #fff; transition: width 0.12s linear; }
#tof-thr-mark { position: absolute; top: -3px; width: 1px; height: 10px; background: var(--danger); }

.devbox { display: flex; flex-direction: column; gap: 10px; padding: 12px; border: 1px dashed var(--line); }
.slider-label { font-size: 11px; letter-spacing: 0.1em; color: var(--muted); }
input[type=range] { width: 100%; accent-color: #fff; }

/* Buttons */
.btn-col { display: flex; flex-direction: column; gap: 8px; }
.btn {
  appearance: none; background: transparent; color: var(--fg);
  border: 1px solid var(--line); padding: 11px 14px;
  font-family: var(--font); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  text-align: left; cursor: pointer; transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.btn:hover { border-color: #fff; }
.btn:active { background: #fff; color: #000; }
.btn.strong { border-color: #fff; }
.btn.strong:hover { background: #fff; color: #000; }
.btn.sm { padding: 9px 10px; font-size: 11px; text-align: center; }
.btn.ghost { color: var(--muted); border-style: dashed; }
.btn.warn:hover { border-color: var(--warn); }
.btn.danger { border-color: var(--danger); color: var(--danger); }
.btn.danger:hover { background: var(--danger); color: #000; }
.btn:disabled { opacity: 0.3; cursor: not-allowed; }
.btn:disabled:hover { border-color: var(--line); }

.form-row { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.form-row label { font-size: 12px; color: var(--muted); letter-spacing: 0.06em; }
.form-row input, #shape-d {
  flex: 1; background: transparent; border: 1px solid var(--line); color: #fff;
  padding: 9px 10px; font-family: var(--mono); font-size: 13px;
}
.form-row input:focus { outline: none; border-color: #fff; }
.unit { font-size: 12px; color: var(--muted); }

.glyphs { display: grid; grid-template-columns: repeat(6, 1fr); gap: 5px; }
.glyphs .btn {
  padding: 8px 0; text-align: center; font-size: 13px; letter-spacing: 0.04em;
  text-transform: none; font-family: var(--mono);
}
.glyphs .btn.sel { border-color: #fff; background: #fff; color: #000; }

/* Filmstrip (Sequenz) */
.filmstrip { display: flex; flex-wrap: wrap; gap: 6px; }
.filmstrip:empty::after { content: "— leer —"; color: var(--muted); font-size: 12px; }
.film {
  position: relative; width: 52px; height: 52px; border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
}
.film svg { width: 100%; height: 100%; }
.film .rm {
  position: absolute; top: -1px; right: -1px; width: 16px; height: 16px;
  background: #000; border: 1px solid var(--line); color: var(--muted);
  font-size: 11px; line-height: 14px; text-align: center; cursor: pointer;
}
.film .rm:hover { color: var(--danger); border-color: var(--danger); }
.film .lbl { position: absolute; bottom: 1px; left: 3px; font-size: 8px; color: var(--muted); font-family: var(--mono); }
.film.readonly .rm { display: none; }

.jog {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 10px;
}
.jog .btn:nth-child(1) { grid-column: 2; }
.jog .btn:nth-child(2) { grid-column: 2; }
.jog .btn:nth-child(3) { grid-column: 1; grid-row: 2; }
.jog .btn:nth-child(4) { grid-column: 3; grid-row: 2; }

/* ── Log ───────────────────────────────────────────── */
.logbar { border-top: 1px solid var(--line); padding: 16px 28px 22px; height: 160px; display: flex; flex-direction: column; }
.log { flex: 1; overflow-y: auto; font-size: 12px; line-height: 1.7; color: var(--muted); }
.log .t { color: #444; margin-right: 12px; }
.log .m { color: #cfcfcf; }

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
  .panel { border-top: 1px solid var(--line); }
  #preview { max-height: 46vh; }
}