:root {
  color-scheme: dark;
  --bg-0: #07090c;
  --bg-1: #0b0d10;
  --bg-2: #11151b;
  --bg-3: #171c24;
  --panel: rgba(17, 21, 27, 0.92);
  --panel-border: rgba(148, 163, 184, 0.14);
  --text: #e8eef7;
  --muted: #93a0b4;
  --faint: #64748b;
  --accent: #5eead4;
  --accent-2: #38bdf8;
  --accent-3: #a78bfa;
  --warn: #fbbf24;
  --danger: #f87171;
  --ok: #34d399;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --radius: 14px;
  --font: "Segoe UI", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: "Cascadia Code", "Consolas", ui-monospace, monospace;
  --header-h: 56px;
  --footer-h: 34px;
  --split: 58%;
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(56, 189, 248, 0.08), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(167, 139, 250, 0.08), transparent 50%),
    radial-gradient(800px 500px at 70% 100%, rgba(94, 234, 212, 0.05), transparent 45%),
    var(--bg-0);
  color: var(--text);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  display: grid;
  grid-template-rows: var(--header-h) 1fr var(--footer-h);
  height: 100%;
  min-height: 0;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, var(--split)) 6px minmax(0, calc(100% - var(--split) - 6px));
  min-height: 0;
  height: 100%;
}

.pane {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  overflow: hidden;
}

.pane-left {
  border-left: none;
  border-radius: 0 0 0 0;
}

.pane-right {
  border-right: none;
}

.splitter {
  background: linear-gradient(180deg, transparent, rgba(94, 234, 212, 0.25), transparent);
  cursor: col-resize;
  position: relative;
}

.splitter::after {
  content: "";
  position: absolute;
  inset: 0 -3px;
}

.splitter:hover,
.splitter:active {
  background: linear-gradient(180deg, transparent, rgba(56, 189, 248, 0.55), transparent);
}

.pane-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--panel-border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
}

.pane-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pane-title strong {
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pane-title span {
  font-size: 11px;
  color: var(--muted);
}

.pane-body {
  flex: 1;
  min-height: 0;
  position: relative;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.02em;
}

.badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--faint);
}

.badge.live .dot {
  background: var(--ok);
  box-shadow: 0 0 10px rgba(52, 211, 153, 0.8);
}

.badge.warn .dot {
  background: var(--warn);
}

.mono {
  font-family: var(--mono);
}

.muted {
  color: var(--muted);
}

.faint {
  color: var(--faint);
}