:root {
  --packing-panel: var(--bg);
  --packing-panel-soft: color-mix(in srgb, var(--text) 3%, transparent);
  --packing-accent-soft: color-mix(in srgb, var(--accent) 9%, transparent);
  --packing-delete: color-mix(in srgb, var(--muted) 88%, var(--text) 12%);
  --packing-insert: var(--accent);
  --packing-focus: color-mix(in srgb, var(--accent) 7%, transparent);
  --packing-mono: "SFMono-Regular", Menlo, Consolas, monospace;
  --packing-serif: Georgia, "Times New Roman", serif;
}

.packing-surface-page {
  background: var(--bg);
}

.packing-surface-page .site-main {
  width: min(1680px, calc(100vw - (var(--content-gutter) * 2)));
  max-width: none;
  margin-inline: auto;
}

.packing-surface-page .site-main > .page-hero {
  padding-inline: 0;
}

.packing-hero .page-title {
  max-width: none;
}

.packing-surface {
  display: grid;
  gap: 1.35rem;
}

.packing-summary {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(500px, 1fr);
  gap: clamp(1.8rem, 3vw, 3.4rem);
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.packing-summary .eyebrow {
  margin-bottom: 0;
}

.packing-summary-copy,
.packing-summary-panel {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.packing-summary-text {
  max-width: 64ch;
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
}

.packing-summary-link {
  width: fit-content;
  color: var(--text);
  font-size: 0.92rem;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 62%, transparent);
  text-underline-offset: 0.24em;
}

.packing-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.packing-metric {
  min-height: 82px;
  padding: 0.9rem 0.95rem 0.75rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.packing-metric-label {
  display: block;
  margin-bottom: 0.42rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.packing-metric-value {
  display: block;
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.2;
}

.packing-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.packing-stage {
  display: grid;
  grid-template-columns: minmax(560px, 1.08fr) minmax(420px, 0.92fr);
  gap: clamp(2rem, 3vw, 4.2rem);
  align-items: start;
}

.packing-section-head,
.packing-score-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.packing-code-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.packing-code-link {
  color: var(--text);
  font-size: 0.78rem;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 62%, transparent);
  text-underline-offset: 0.22em;
}

.packing-section-title {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.packing-section-tag,
.packing-score-label {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.58rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1;
}

.packing-section-tag.is-phase {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 42%, transparent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.packing-editor {
  margin-top: 0.85rem;
  border: 1px solid var(--line);
  background: var(--packing-panel);
  overflow: hidden;
}

.packing-editor-head {
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--line);
}

.packing-editor-title {
  color: var(--muted);
  font-family: var(--packing-mono);
  font-size: 0.86rem;
}

.packing-editor-body {
  position: relative;
  height: 720px;
  overflow: hidden;
  background: var(--bg);
  --editor-font-size: 12.2px;
  --editor-line-height: 22px;
  --editor-ln-col: 34px;
  --editor-pm-col: 14px;
  --editor-gap-col: 0.45rem;
  --editor-pad-x: 0.55rem;
}

.packing-editor-layer {
  position: relative;
  min-height: 100%;
}

.packing-editor-focus {
  display: none;
}

.packing-editor-line {
  position: absolute;
  left: 12px;
  right: 12px;
  display: grid;
  grid-template-columns: var(--editor-ln-col) var(--editor-pm-col) minmax(0, 1fr);
  gap: var(--editor-gap-col);
  align-items: center;
  height: var(--editor-line-height);
  padding: 0 var(--editor-pad-x);
  color: color-mix(in srgb, var(--text) 88%, transparent);
  font-family: var(--packing-mono);
  font-size: var(--editor-font-size);
  line-height: 1;
  white-space: pre;
  pointer-events: none;
  transform-origin: left center;
  will-change: transform, opacity, height;
  transition: background-color 220ms ease, color 220ms ease;
}

.packing-editor-line .ln {
  color: var(--muted);
  text-align: right;
  user-select: none;
}

.packing-editor-line .pm {
  font-weight: 600;
  opacity: 0.92;
}

.packing-editor-line .code {
  display: block;
  width: max-content;
  min-width: 0;
  transform: scaleX(var(--editor-code-scale, 1));
  transform-origin: left center;
}

.packing-editor-line.equal {
  background: transparent;
}

.packing-editor-line.insert {
  color: var(--packing-insert);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}

.packing-editor-line.delete {
  color: var(--packing-delete);
  background: color-mix(in srgb, var(--text) 4%, transparent);
}

.packing-editor-line.delete .code {
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
}

.packing-visual {
  display: grid;
  gap: 1rem;
}

.packing-card {
  border: 1px solid var(--line);
  background: var(--packing-panel);
  padding: 1rem;
}

.packing-card--layout {
  padding: 0.75rem;
}

.packing-score-svg,
.packing-layout-svg,
.packing-contact-svg {
  display: block;
  width: 100%;
  height: auto;
}

.packing-svg-axis,
.packing-svg-grid,
.packing-svg-guide {
  fill: none;
  stroke: color-mix(in srgb, var(--text) 18%, transparent);
  stroke-width: 1;
}

.packing-svg-guide {
  stroke-dasharray: 3 5;
  stroke: color-mix(in srgb, var(--text) 10%, transparent);
}

.packing-svg-axis {
  stroke: color-mix(in srgb, var(--text) 48%, transparent);
}

.packing-svg-text {
  fill: var(--muted);
  font-family: var(--packing-serif);
  font-size: 11px;
}

.packing-svg-value {
  fill: var(--text);
  font-family: var(--packing-mono);
  font-size: 12px;
}

.packing-svg-line {
  fill: none;
  stroke: var(--text);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.packing-svg-dot {
  fill: color-mix(in srgb, var(--text) 18%, transparent);
}

.packing-svg-checkpoint {
  fill: var(--bg);
  stroke: var(--accent);
  stroke-width: 1.7;
}

.packing-svg-current {
  fill: var(--bg);
  stroke: var(--accent);
  stroke-width: 2.2;
}

.packing-square {
  fill: color-mix(in srgb, var(--text) 2%, transparent);
  stroke: color-mix(in srgb, var(--text) 58%, transparent);
  stroke-width: 1.2;
}

.packing-circle {
  fill: color-mix(in srgb, var(--accent) 14%, transparent);
  stroke: color-mix(in srgb, var(--accent) 76%, transparent);
  stroke-width: 1.1;
}

.packing-circle.is-large {
  fill: color-mix(in srgb, var(--accent) 24%, transparent);
  stroke: var(--accent);
  stroke-width: 1.4;
}

.packing-circle.is-next {
  fill: color-mix(in srgb, var(--accent) 20%, transparent);
}

.packing-contact-value {
  fill: var(--accent);
}

@media (max-width: 1180px) {
  .packing-summary,
  .packing-stage {
    grid-template-columns: 1fr;
  }

  .packing-visual {
    order: -1;
    border-top: 1px solid var(--line);
    padding-top: 1rem;
  }

  .packing-editor-body {
    height: 520px;
  }
}

@media (max-width: 680px) {
  .packing-surface-page .site-main {
    width: min(100%, calc(100vw - 2rem));
  }

  .packing-metrics {
    grid-template-columns: 1fr;
  }

  .packing-editor-line {
    grid-template-columns: 2.15rem 0.8rem max-content;
    min-width: max-content;
  }
}