.planner-wrap { --wrap: 78rem; }
.planner-shell { min-width: 0; }
.planner-intro { max-width: 48rem; margin-bottom: 1.4rem; }
.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--accent);
  font: 700 0.72rem/1.3 var(--ui);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.planner-layout { display: grid; gap: 1rem; align-items: start; }
@media (min-width: 64rem) {
  .planner-layout { grid-template-columns: minmax(18rem, 23rem) minmax(0, 1fr); gap: 1.25rem; }
  .planner-controls { position: sticky; top: 1rem; max-height: calc(100vh - 2rem); overflow-y: auto; scrollbar-gutter: stable; }
}
.planner-controls,
.planner-stage,
.planner-next {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
}
.planner-controls { padding: 1rem; font-family: var(--ui); }
.planner-controls > h2 { margin: 0 0 0.8rem; }
.planner-controls fieldset { min-width: 0; margin: 0; padding: 1rem 0; border: 0; border-top: 1px solid var(--line); }
.planner-controls legend { padding: 0; color: var(--ink); font: 650 0.96rem/1.3 var(--ui); }
.control-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.65rem; margin-top: 0.65rem; }
@media (max-width: 24rem) { .control-grid { grid-template-columns: minmax(0, 1fr); } }
.control-grid label,
.backdrop-picker {
  min-width: 0;
  color: var(--ink-soft);
  font: 600 0.76rem/1.3 var(--ui);
}
.control-grid label > span { font-weight: 400; }
.control-grid input,
.control-grid select {
  display: block;
  width: 100%;
  min-height: 44px;
  margin-top: 0.3rem;
  padding: 0.55rem 0.6rem;
  border: 1px solid #3a4352;
  border-radius: 8px;
  background: #0d1118;
  color: var(--ink);
  font: 600 0.95rem/1.2 var(--data);
}
.control-grid input[aria-invalid="true"] { border-color: var(--bad); }
.field-help,
.canvas-help { margin: 0.45rem 0 0; color: var(--ink-soft); font: 0.78rem/1.45 var(--ui); }
.quiet-button,
.backdrop-picker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  margin-top: 0.65rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid #3a4352;
  border-radius: 8px;
  background: #10151d;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  font: 600 0.82rem/1.2 var(--ui);
}
.backdrop-picker { width: 100%; }
.backdrop-picker input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}
.backdrop-picker:focus-within { outline: 3px solid var(--accent); outline-offset: 2px; }
.planner-stage { padding: 1rem; overflow: hidden; }
@media (min-width: 48rem) { .planner-stage { padding: 1.25rem; } }
.stage-heading { display: flex; justify-content: space-between; align-items: end; gap: 0.75rem; flex-wrap: wrap; }
.stage-heading h2 { margin: 0; }
.stage-key { margin: 0; color: var(--ink-soft); font: 0.74rem/1.4 var(--ui); }
.pole-key,
.sample-key { display: inline-block; width: 0.72rem; height: 0.72rem; margin: 0 0.2rem 0 0.55rem; vertical-align: -0.08rem; }
.pole-key { border: 2px solid var(--accent); border-radius: 50%; }
.sample-key { background: #9fc2e8; transform: rotate(45deg); }
#planner-canvas {
  display: block;
  width: 100%;
  height: auto;
  max-height: 68vh;
  margin-top: 0.85rem;
  border: 1px solid #344052;
  border-radius: 12px;
  background: #05070a;
  cursor: crosshair;
  touch-action: none;
}
.result-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.55rem; margin-top: 1rem; }
@media (min-width: 44rem) { .result-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 22rem) { .result-grid { grid-template-columns: minmax(0, 1fr); } }
.result-grid article { min-width: 0; padding: 0.75rem; border: 1px solid var(--line); border-radius: 10px; background: #10141b; }
.result-grid span,
.result-grid strong,
.result-grid small { display: block; }
.result-grid span { color: var(--ink-soft); font: 0.72rem/1.3 var(--ui); }
.result-grid strong { margin-top: 0.18rem; overflow-wrap: anywhere; font: 650 1.04rem/1.25 var(--data); font-variant-numeric: tabular-nums; }
.result-grid small { margin-top: 0.22rem; color: var(--ink-soft); font: 0.7rem/1.35 var(--ui); }
.planner-note { margin-top: 0.8rem; padding: 0.75rem; border-left: 3px solid var(--accent); background: #111720; color: var(--ink-soft); font: 0.8rem/1.45 var(--ui); }
.planner-note[data-level="warning"] { border-color: var(--warn); color: var(--ink); }
.planner-note[data-level="error"] { border-color: var(--bad); color: var(--bad); }
.method-note { margin-top: 0.9rem; font-family: var(--ui); }
.method-note summary { min-height: 44px; cursor: pointer; color: var(--accent); }
.method-note p { font-size: 0.82rem; color: var(--ink-soft); }
.planner-next { margin-top: 1rem; padding: 1rem; }
.planner-next h2 { margin-top: 0; }
.planner-compact {
  margin: 1.4rem 0 2rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}
.planner-compact h2 { margin-top: 0; }
.compact-inputs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.6rem; font-family: var(--ui); }
@media (max-width: 32rem) { .compact-inputs { grid-template-columns: minmax(0, 1fr); } }
.compact-inputs label { color: var(--ink-soft); font-size: 0.78rem; }
.compact-inputs input { display: block; width: 100%; min-height: 44px; margin-top: 0.25rem; padding: 0.5rem; border: 1px solid #3a4352; border-radius: 8px; background: #0d1118; color: var(--ink); font: 600 0.95rem var(--data); }
.compact-result { margin: 0.85rem 0 0; color: var(--ink); font: 600 0.95rem/1.5 var(--ui); }