:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #222532;
  --border: #2a2d3a;
  --text: #e1e4ed;
  --muted: #6b7084;
  --accent: #6c8cff;
  --green: #4ade80;
  --yellow: #facc15;
  --pink: #f472b6;
  --orange: #fb923c;
  --font-mono: "SF Mono", "Cascadia Code", "Fira Code", Consolas, monospace;
}

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

body {
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

header h1 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin-right: auto;
}

.status {
  font-size: 0.75rem;
  color: var(--muted);
  min-width: 5rem;
  text-align: center;
}
.status.active { color: var(--green); }
.status.paused { color: var(--yellow); }

button {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.4rem 1rem;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.15s;
}
button:disabled { opacity: 0.35; cursor: not-allowed; }

.btn-accent {
  border: 1px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}
.btn-accent:hover:not(:disabled) {
  background: color-mix(in srgb, var(--accent) 28%, transparent);
}

.btn-yellow {
  border: 1px solid var(--yellow);
  background: color-mix(in srgb, var(--yellow) 10%, transparent);
  color: var(--yellow);
}
.btn-yellow:hover:not(:disabled) {
  background: color-mix(in srgb, var(--yellow) 25%, transparent);
}
.btn-yellow.is-paused {
  border-color: var(--green);
  color: var(--green);
  background: color-mix(in srgb, var(--green) 10%, transparent);
}

.btn-orange {
  border: 1px solid var(--orange);
  background: color-mix(in srgb, var(--orange) 10%, transparent);
  color: var(--orange);
}
.btn-orange:hover:not(:disabled) {
  background: color-mix(in srgb, var(--orange) 25%, transparent);
}

main {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr auto;
  gap: 1px;
  background: var(--border);
  overflow: hidden;
}

.panel {
  background: var(--surface);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  padding: 0.6rem 1rem;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

.panel-body::-webkit-scrollbar       { width: 5px; }
.panel-body::-webkit-scrollbar-track  { background: transparent; }
.panel-body::-webkit-scrollbar-thumb  { background: var(--border); border-radius: 3px; }

#rawBody { word-break: break-all; }

.raw-received { color: color-mix(in srgb, var(--text) 55%, transparent); }
.raw-chunk {
  color: var(--green);
  background: color-mix(in srgb, var(--green) 12%, transparent);
  border-radius: 2px;
}
.raw-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--green);
  vertical-align: text-bottom;
  animation: blink 0.8s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.algo-panel { grid-column: 1 / -1; }

.algo-grid {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr;
  gap: 0.4rem 1.2rem;
  align-items: start;
}

.algo-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding-top: 0.15rem;
  white-space: nowrap;
}

.algo-value { font-size: 0.75rem; min-height: 1.4rem; }

.stack-item {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  margin-right: 0.25rem;
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 600;
}
.stack-item.obj { background: color-mix(in srgb, var(--accent) 25%, transparent); color: var(--accent); }
.stack-item.arr { background: color-mix(in srgb, var(--pink) 25%, transparent); color: var(--pink); }

.flag-on  { color: var(--yellow); font-weight: 600; }
.flag-off { color: var(--muted); }

.step-list { list-style: none; display: flex; flex-wrap: wrap; gap: 0.3rem; }
.step-list li {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: var(--surface2);
  border: 1px solid var(--border);
}
.step-label    { color: var(--text); }
.step-appended { color: var(--green); margin-left: 0.3rem; }

.completed-json {
  font-size: 0.7rem;
  padding: 0.4rem 0.6rem;
  background: color-mix(in srgb, var(--green) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--green) 20%, transparent);
  border-radius: 4px;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 3.5rem;
  overflow-y: auto;
  grid-column: 2 / -1;
}

.key-suppressed {
  font-size: 0.65rem;
  color: var(--orange);
  font-weight: 600;
  margin-left: 0.6rem;
}

.json-key     { color: var(--accent); }
.json-string  { color: var(--green); }
.json-number  { color: var(--yellow); }
.json-bool    { color: var(--pink); }
.json-null    { color: var(--muted); }
.json-bracket { color: var(--muted); }

.shape-dim     { opacity: 0.25; }
.shape-partial { opacity: 0.7; color: var(--yellow); }
.shape-present { opacity: 1.0; }
.zod-method    { color: var(--accent); }
.zod-type      { color: var(--pink); }
.zod-key       { color: var(--accent); }
.zod-bracket   { color: var(--muted); }

.empty-state { color: var(--muted); font-size: 0.7rem; font-style: italic; }

footer {
  padding: 0.6rem 1rem;
  text-align: center;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

footer a {
  color: var(--muted);
  font-size: 0.7rem;
  text-decoration: none;
}