:root {
  color-scheme: dark;
  --bg: #0c0d14;
  --panel: rgba(18, 20, 32, 0.92);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8e9ef;
  --muted: #8b8fa3;
  --accent: #6ea8ff;
  --danger: #f07178;
  --ok: #7ee787;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
}

body.app {
  display: grid;
  grid-template-columns: 340px 1fr;
  min-height: 100vh;
}

@media (max-width: 900px) {
  body.app {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }
}

aside.panel {
  border-right: 1px solid var(--border);
  background: var(--panel);
  backdrop-filter: blur(12px);
  padding: 1.25rem 1.25rem 2rem;
  overflow-y: auto;
}

h1 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
}

.sub {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 1.25rem;
  line-height: 1.45;
}

.sub a {
  color: var(--accent);
}

label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0.75rem 0 0.35rem;
}

input[type="text"],
input[type="password"],
textarea {
  width: 100%;
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text);
  font-size: 0.85rem;
}

textarea {
  min-height: 4.5rem;
  resize: vertical;
  font-family: ui-monospace, monospace;
}

.row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.75rem;
}

button.primary {
  flex: 1;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: none;
  background: linear-gradient(180deg, #5b8fd9, #447bca);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

button.primary:hover {
  filter: brightness(1.05);
}

button.ghost {
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 0.8rem;
  cursor: pointer;
}

button.ghost:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.2);
}

.status {
  margin-top: 1rem;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.35);
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--muted);
}

.status strong {
  color: var(--text);
}

.status.ok .state {
  color: var(--ok);
}

.status.err .state {
  color: var(--danger);
}

#viewport {
  position: relative;
  min-height: 320px;
  height: 100%;
}

#viewport canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  outline: none;
}

.overlay-hint {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 6px 10px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.55);
  font-size: 0.75rem;
  color: var(--muted);
  pointer-events: none;
}

.panel-section {
  font-size: 0.85rem;
  font-weight: 600;
  margin: 1.25rem 0 0.35rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
  letter-spacing: -0.02em;
}

.muted-inline {
  font-size: 0.75rem;
  color: var(--muted);
  min-width: 2.5rem;
  text-align: right;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.measure-readout {
  margin-top: 0.5rem;
  padding: 0.5rem 0.65rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--muted);
}

.realtor-hud {
  position: absolute;
  right: 12px;
  top: 12px;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.78rem;
  line-height: 1.5;
  color: #c8cad6;
  pointer-events: none;
  max-width: min(280px, 90vw);
}

.realtor-hud div + div {
  margin-top: 4px;
  color: var(--muted);
}