:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1f2630;
  --border: #2d3540;
  --text: #e6e9ee;
  --muted: #8c96a3;
  --accent: #4ea1ff;
  --danger: #ff6b6b;
  --warn: #ffb547;
  --ok: #3fbf7f;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

#app {
  display: flex;
  height: 100vh;
  height: 100dvh;
}

#panel {
  width: 360px;
  flex: none;
  overflow-y: auto;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 14px 16px 24px;
}

#panel header h1 { font-size: 18px; margin: 0; }
#panel .sub { color: var(--muted); margin: 4px 0 0; font-size: 12px; }

section {
  border-top: 1px solid var(--border);
  margin-top: 14px;
  padding-top: 12px;
}

h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin: 0 0 8px;
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}

label output { float: right; color: var(--text); font-variant-numeric: tabular-nums; }

select, button {
  font: inherit;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
}

select { width: 100%; margin-top: 4px; }
button { cursor: pointer; white-space: nowrap; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--danger); }

input[type=range] { width: 100%; margin-top: 6px; accent-color: var(--accent); }

label.check { display: flex; gap: 8px; align-items: center; color: var(--text); font-size: 13px; margin-bottom: 6px; }

.row { display: flex; gap: 8px; align-items: flex-end; margin-bottom: 10px; }
.row.between { justify-content: space-between; align-items: center; }
.row h2 { margin: 0; }
.row .grow { flex: 1; margin-bottom: 0; }
.row button { flex: none; }
.grid3 { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 8px; }

#stentList { list-style: none; margin: 8px 0 0; padding: 0; }
#stentList li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 6px;
  cursor: pointer;
  font-size: 13px;
}
#stentList li.active { border-color: var(--accent); background: rgba(78, 161, 255, .08); }
#stentList li .num {
  width: 20px; height: 20px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--panel-2); font-size: 11px; flex: none;
}
#stentList li .meta { color: var(--muted); margin-left: auto; font-size: 12px; }

#readouts table { width: 100%; border-collapse: collapse; font-size: 13px; }
#readouts td { padding: 3px 0; border-bottom: 1px solid var(--border); }
#readouts td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
#readouts td:first-child { color: var(--muted); }

#warnings { margin-top: 8px; }
.msg { font-size: 12px; padding: 6px 8px; border-radius: 6px; margin-bottom: 6px; }
.msg.warn { background: rgba(255, 181, 71, .12); color: var(--warn); }
.msg.bad { background: rgba(255, 107, 107, .12); color: var(--danger); }
.msg.ok { background: rgba(63, 191, 127, .12); color: var(--ok); }
.msg.info { background: rgba(78, 161, 255, .1); color: #9ccbff; }

.legend { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }

footer { margin-top: 18px; font-size: 12px; color: var(--muted); }
footer a { color: var(--accent); display: block; margin-top: 6px; }

#viewport { position: relative; flex: 1; min-width: 0; overflow: hidden; }
#viewport canvas { display: block; }

#views {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  display: flex; gap: 6px; flex-wrap: wrap;
}
#views button { background: rgba(22, 27, 34, .85); font-size: 12px; padding: 5px 8px; }

#tooltip {
  position: absolute; z-index: 3; pointer-events: none;
  background: rgba(14, 17, 22, .92); border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 8px; font-size: 12px; white-space: nowrap;
}

#loading {
  position: absolute; inset: 0; display: grid; place-items: center;
  color: var(--muted); pointer-events: none;
}

.vlabel {
  font-size: 11px; font-weight: 600; color: #fff;
  background: rgba(14, 17, 22, .7); padding: 1px 5px; border-radius: 4px;
  pointer-events: none;
}

@media (max-width: 760px) {
  #app { flex-direction: column-reverse; }
  #panel { width: 100%; height: 48vh; height: 48dvh; border-right: 0; border-top: 1px solid var(--border); }
  #viewport { flex: 1; }
}