:root {
  --bg: #eff6ed;
  --bg-elevated: #f9fbf4;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #ffffff;
  --text: #1f2a25;
  --muted: #5d695f;
  --line: rgba(31, 42, 37, 0.12);
  --line-strong: rgba(31, 42, 37, 0.22);
  --brand: #1f6b4f;
  --brand-strong: #184f3b;
  --accent: #d2a54f;
  --accent-soft: rgba(210, 165, 79, 0.16);
  --danger: #8a3d2c;
  --shadow: 0 24px 60px rgba(22, 35, 29, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(210, 165, 79, 0.18), transparent 22rem),
    radial-gradient(circle at top right, rgba(31, 107, 79, 0.16), transparent 26rem),
    linear-gradient(180deg, #f5faf1 0%, #edf5ea 100%);
  min-height: 100vh;
}

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

img {
  max-width: 100%;
  display: block;
}

.page-shell {
  width: min(1520px, calc(100% - 28px));
  margin: 20px auto 40px;
}

.site-header,
.site-footer,
.panel,
.hero,
.gallery-grid img,
.feature-card,
.metric-card,
.summary-card,
.result-card,
.version-card,
.contact-card,
.timeline-card,
.legacy-callout {
  backdrop-filter: blur(12px);
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 10;
  background: rgba(250, 252, 246, 0.88);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 18px 22px;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand-logo {
  width: 108px;
  height: 56px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.85);
  padding: 4px 8px;
  border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.brand-kicker {
  margin: 0 0 4px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand);
}

.brand h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.7rem, 2.1vw, 2.5rem);
  line-height: 1.05;
}

.brand-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.version-badge,
.contact-pill,
.status-chip {
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 0.92rem;
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.contact-pill {
  color: var(--brand-strong);
}

.inline-nav-form {
  margin: 0;
}

.contact-pill-button {
  font: inherit;
  cursor: pointer;
}

.main-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.main-nav a {
  padding: 11px 16px;
  border-radius: 999px;
  color: var(--muted);
  transition: 180ms ease;
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--text);
  background: var(--surface-strong);
  box-shadow: inset 0 0 0 1px var(--line);
}

.site-main {
  margin-top: 22px;
  display: grid;
  gap: 22px;
}

.auth-panel {
  max-width: 720px;
  margin-inline: auto;
}

.auth-form {
  margin-top: 18px;
}

.auth-inline-form {
  margin-top: 14px;
}

.auth-help {
  margin-top: 14px;
}

.hero {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(244, 248, 239, 0.76)),
    linear-gradient(120deg, rgba(31, 107, 79, 0.08), rgba(210, 165, 79, 0.08));
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: clamp(26px, 4vw, 46px);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  overflow: hidden;
}

.hero h2,
.section-title,
.panel h2,
.panel h3 {
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.08;
  margin-top: 0;
}

.hero h2 {
  font-size: clamp(2.2rem, 4vw, 4.3rem);
  margin-bottom: 16px;
}

.hero p {
  color: var(--muted);
  max-width: 60ch;
  font-size: 1.02rem;
}

.hero-actions,
.inline-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.button,
button,
.button-link {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 13px 20px;
  cursor: pointer;
  font: inherit;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button,
button.primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  color: white;
  box-shadow: 0 14px 26px rgba(24, 79, 59, 0.22);
}

.button-link,
button.secondary {
  background: var(--surface-strong);
  color: var(--text);
  border: 1px solid var(--line);
}

.button:hover,
.button-link:hover,
button:hover {
  transform: translateY(-1px);
}

.hero-visual {
  display: grid;
  gap: 12px;
}

.hero-card {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
}

.hero-card strong {
  display: block;
  margin-bottom: 6px;
}

.grid-3,
.grid-2,
.metrics-grid,
.results-grid,
.gallery-grid,
.version-grid,
.contact-grid,
.timeline-grid {
  display: grid;
  gap: 18px;
}

.grid-3,
.metrics-grid,
.results-grid,
.version-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2,
.contact-grid,
.timeline-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel,
.feature-card,
.metric-card,
.summary-card,
.result-card,
.version-card,
.contact-card,
.timeline-card,
.legacy-callout {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.panel {
  padding: 24px;
}

.feature-card,
.metric-card,
.summary-card,
.result-card,
.version-card,
.contact-card,
.timeline-card,
.legacy-callout {
  padding: 20px;
}

.feature-card h3,
.metric-card h3,
.summary-card h3,
.result-card h3,
.version-card h3,
.contact-card h3,
.timeline-card h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
}

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

.gallery-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.gallery-grid img {
  height: 170px;
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.notice-panel {
  border-width: 1px;
}

.notice-success {
  border-color: rgba(31, 107, 79, 0.28);
  background: rgba(236, 247, 241, 0.92);
}

.notice-error {
  border-color: rgba(138, 61, 44, 0.28);
  background: rgba(252, 240, 236, 0.92);
}

.admin-metrics .value,
.result-card .value {
  font-size: 2rem;
  font-family: Georgia, "Times New Roman", serif;
  margin: 6px 0 0;
}

.admin-section-grid {
  display: grid;
  grid-template-columns: minmax(400px, 520px) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}

.scroll-target {
  scroll-margin-top: 132px;
}

.compact-grid {
  gap: 14px;
}

.admin-form-panel {
  position: sticky;
  top: 126px;
  align-self: stretch;
}

.admin-list-panel {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.admin-list-panel .table-wrap {
  flex: 1;
  max-height: 36rem;
  overflow: auto;
  padding-right: 4px;
}

.admin-audit-panel .table-wrap {
  max-height: 26rem;
}

.table-toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 14px;
}

.table-source-label {
  margin: -4px 0 14px;
  color: var(--muted);
  font-size: 0.82rem;
}

.table-source-label code {
  font-size: 0.82rem;
}

.table-filter {
  display: grid;
  gap: 6px;
  min-width: min(100%, 280px);
}

.table-filter span {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.checkbox-row {
  display: flex;
  align-items: end;
}

.checkbox-row label,
.checkbox-stack label {
  display: flex;
  gap: 10px;
  align-items: center;
}

.checkbox-stack {
  display: grid;
  gap: 10px;
}

.table-wrap {
  overflow: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.admin-table th,
.admin-table td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.admin-table th {
  color: var(--muted);
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  position: sticky;
  top: 0;
  z-index: 1;
  background: rgba(249, 251, 244, 0.98);
}

.admin-table th[data-sortable="false"] {
  cursor: default;
}

.admin-table th:not([data-sortable="false"]) {
  cursor: pointer;
  user-select: none;
}

.admin-table th:not([data-sortable="false"])::after {
  content: "↕";
  margin-left: 8px;
  font-size: 0.78rem;
  opacity: 0.45;
}

.admin-table th.is-sorted-asc::after {
  content: "↑";
  opacity: 1;
}

.admin-table th.is-sorted-desc::after {
  content: "↓";
  opacity: 1;
}

.admin-table .column-filter-row th {
  top: 41px;
  padding-top: 8px;
  padding-bottom: 10px;
  background: rgba(249, 251, 244, 0.98);
}

.admin-table .column-filter-row th::after {
  content: none;
}

.column-filter-input {
  min-width: 92px;
  padding: 8px 10px;
  font-size: 0.86rem;
  border-radius: 9px;
}

.column-filter-input::placeholder {
  color: rgba(93, 105, 95, 0.75);
}

.column-filter-empty {
  display: block;
  min-height: 38px;
}

.is-hidden {
  display: none !important;
}

.admin-table tbody tr.is-hidden {
  display: none;
}

.assembly-image-editor {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  align-items: start;
}

.assembly-image-input-group {
  display: grid;
  gap: 8px;
}

.assembly-image-picker-row {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.image-browser-button {
  white-space: nowrap;
}

.assembly-image-preview-card {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(249, 251, 244, 0.92);
  max-width: 240px;
}

.dimension-assembly-summary {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 220px);
  align-items: start;
}

.dimension-assembly-summary-copy {
  display: grid;
  gap: 8px;
}

.dimension-assembly-summary-copy small {
  color: var(--muted);
  line-height: 1.45;
}

.dimension-assembly-preview-card {
  justify-self: start;
}

.assembly-image-preview-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.assembly-image-preview-link {
  display: block;
  border: 0;
  padding: 0;
  background: transparent;
  text-align: left;
}

.assembly-image-preview {
  width: 100%;
  max-height: 160px;
  object-fit: contain;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 10px;
}

.assembly-thumb-cell {
  width: 92px;
}

.assembly-thumb-link {
  display: inline-flex;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.assembly-thumb {
  width: 72px;
  height: 52px;
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 4px;
}

.admin-table code {
  font-size: 0.86rem;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(15, 24, 20, 0.52);
  z-index: 60;
}

.modal-card {
  width: min(960px, 100%);
  max-height: min(88vh, 920px);
  overflow: auto;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 60px rgba(22, 35, 29, 0.24);
  padding: 24px;
}

.modal-notice-card {
  width: min(560px, 100%);
  max-height: none;
}

.modal-notice-success {
  border-color: rgba(31, 107, 79, 0.24);
  box-shadow: 0 24px 60px rgba(24, 79, 59, 0.18);
}

.modal-notice-error {
  border-color: rgba(138, 61, 44, 0.28);
  box-shadow: 0 24px 60px rgba(138, 61, 44, 0.18);
}

.modal-notice-body {
  color: var(--text);
  line-height: 1.55;
}

.modal-notice-body p {
  margin: 0;
}

.modal-confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.modal-header h3 {
  margin-bottom: 8px;
}

.modal-header-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.modal-icon-button {
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
  box-shadow: none;
  min-width: 52px;
  padding: 8px 12px;
  line-height: 1;
}

.modal-icon-button[disabled],
.image-preview-nav[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

.modal-close-button {
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
  box-shadow: none;
  padding: 8px 14px;
  line-height: 1;
  font-size: 1.2rem;
}

.modal-toolbar {
  margin-bottom: 18px;
}

.modal-search-input {
  width: min(420px, 100%);
}

.image-browser-modal code {
  white-space: normal;
}

.image-browser-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

.image-browser-card {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(249, 251, 244, 0.96);
  box-shadow: none;
  color: var(--text);
  text-align: left;
}

.image-browser-card img {
  width: 100%;
  height: 124px;
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 8px;
}

.image-browser-card span {
  font-size: 0.88rem;
  overflow-wrap: anywhere;
  line-height: 1.35;
}

.image-browser-card.is-hidden {
  display: none;
}

.image-preview-modal {
  width: min(1280px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 18px;
  overflow: hidden;
  position: relative;
  transform: translate(var(--preview-modal-x, 0px), var(--preview-modal-y, 0px));
  transition: transform 0.12s ease;
}

.image-preview-modal.is-dragging {
  transition: none;
}

.image-preview-drag-handle {
  cursor: grab;
  user-select: none;
}

.image-preview-drag-handle.is-dragging {
  cursor: grabbing;
}

.image-preview-shell {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: stretch;
  min-height: 0;
}

.image-preview-nav {
  align-self: center;
  min-height: 76px;
  min-width: 56px;
  border: 1px solid var(--line);
  background: rgba(249, 251, 244, 0.98);
  color: var(--text);
  box-shadow: none;
  font-size: 2rem;
  line-height: 1;
  padding: 12px 10px;
}

.image-preview-stage {
  min-height: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(249, 251, 244, 0.96);
  overflow: hidden;
}

.image-preview-canvas {
  --preview-scale: 1;
  --preview-width: 100%;
  width: 100%;
  height: 100%;
  min-height: min(48vh, 560px);
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: #fff;
  border-radius: 14px;
}

.image-preview-modal-image {
  display: block;
  width: var(--preview-width);
  min-width: 100%;
  max-width: none;
  flex: 0 0 auto;
  height: auto;
  transition: width 0.18s ease;
  cursor: zoom-in;
}

.image-preview-caption {
  margin: 6px 0 0;
  max-width: 48rem;
}

.image-preview-footer {
  margin-top: 0;
}

.table-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.table-actions form {
  margin: 0;
}

.link-button {
  border: 0;
  background: transparent;
  color: var(--brand);
  padding: 0;
  box-shadow: none;
}

.link-button:hover {
  text-decoration: underline;
  transform: none;
}

.link-danger {
  color: #a43d2c;
}

.link-danger:hover {
  color: #7c2b1f;
}

textarea,
input,
select {
  width: 100%;
}

.showcase-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: start;
}

.config-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: start;
}

.config-choice-callout {
  grid-column: 1 / -1;
  display: none;
}

.config-choice-callout h3 {
  margin-bottom: 10px;
}

.config-choice-callout p {
  margin: 0;
}

.config-choice-callout-points {
  display: grid;
  gap: 8px;
  max-width: 32rem;
}

.choice-pill {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
}

.choice-pill-inline {
  margin-bottom: -10px;
}

.choice-pill strong {
  font-size: 0.92rem;
}

.choice-pill span {
  color: var(--muted);
  line-height: 1.35;
}

.config-column {
  display: grid;
  gap: 14px;
  align-content: start;
}

.config-column-visual {
  align-self: start;
}

.form-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field-group {
  display: grid;
  gap: 6px;
}

.field-group label {
  font-weight: 700;
  font-size: 0.92rem;
}

.field-group small {
  color: var(--muted);
  overflow-wrap: anywhere;
  word-break: break-word;
  line-height: 1.35;
}

.field-group small code {
  white-space: normal;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 11px 12px;
  background: var(--surface-strong);
  color: var(--text);
  font: inherit;
}

.form-grid .full {
  grid-column: 1 / -1;
}

.key-metrics {
  display: grid;
  gap: 10px;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.metric-row:last-child {
  border-bottom: 0;
}

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

.metric-value {
  font-weight: 700;
  text-align: right;
}

.hero-stat,
.metric-card .value,
.result-card .value {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.6rem;
  line-height: 1;
}

.visual-frame {
  background: linear-gradient(180deg, #fdfdf9, #eef4ea);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  padding: 12px;
  min-height: 320px;
}

.visual-frame img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.technical-preview-frame {
  display: grid;
  gap: 12px;
  align-content: start;
}

.technical-preview-toolbar {
  display: grid;
  gap: 10px;
}

.technical-preview-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.technical-preview-meta {
  display: grid;
  gap: 3px;
}

.technical-preview-meta span {
  color: var(--muted);
  line-height: 1.35;
}

.technical-preview-trigger {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  text-align: left;
}

.technical-preview-trigger img {
  cursor: zoom-in;
}

.technical-preview-help {
  margin: 0;
}

.empty-state {
  min-height: 280px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 14px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.status-chip::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 6px rgba(31, 107, 79, 0.12);
}

.legacy-callout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.calc-anchor-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.calculator-section {
  display: grid;
  gap: 22px;
}

.calculator-section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 18px;
  flex-wrap: wrap;
}

.calculator-kicker {
  margin: 0 0 8px;
  color: var(--brand);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.calculator-tool-grid {
  display: grid;
  grid-template-columns: minmax(320px, 480px) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.calculator-form {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(247, 250, 243, 0.94));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
}

.calculator-side-grid {
  display: grid;
  gap: 18px;
}

.calculator-results-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.calculator-visual {
  min-height: 260px;
}

.calculator-visual img {
  max-height: 420px;
  margin: 0 auto;
  object-fit: contain;
}

.site-footer {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  background: rgba(31, 42, 37, 0.92);
  color: rgba(255, 255, 255, 0.92);
  padding: 24px;
  border-radius: var(--radius-xl);
}

.site-footer p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.74);
}

.panel ul,
.contact-card ul {
  margin: 0;
  padding-left: 20px;
}

.panel li,
.contact-card li {
  margin-bottom: 8px;
}

@media (max-width: 1040px) {
  .hero,
  .config-grid,
  .showcase-grid,
  .grid-2,
  .contact-grid,
  .timeline-grid,
  .grid-3,
  .metrics-grid,
  .results-grid,
  .version-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .calculator-tool-grid,
  .calculator-results-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 18px, 100%);
    margin-top: 10px;
  }

  .site-header,
  .hero,
  .panel,
  .site-footer {
    border-radius: 22px;
  }

  .brand-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand {
    align-items: flex-start;
  }

  .brand-logo {
    width: 92px;
    height: 50px;
  }

  .form-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .legacy-callout {
    flex-direction: column;
    align-items: flex-start;
  }

  .calculator-section-head {
    align-items: flex-start;
  }

  .admin-section-grid {
    grid-template-columns: 1fr;
  }

  .admin-form-panel {
    position: static;
  }

  .admin-list-panel .table-wrap,
  .admin-audit-panel .table-wrap {
    max-height: none;
  }

  .assembly-image-editor {
    grid-template-columns: 1fr;
  }

  .assembly-image-picker-row {
    grid-template-columns: 1fr;
  }

  .dimension-assembly-summary {
    grid-template-columns: 1fr;
  }

  .modal-overlay {
    padding: 12px;
  }

  .modal-card {
    padding: 18px;
  }

  .modal-header-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .image-preview-shell {
    grid-template-columns: 1fr;
  }

  .image-preview-nav {
    min-width: 0;
    width: 100%;
    font-size: 1.4rem;
  }

  .image-preview-stage {
    min-height: auto;
  }

  .image-preview-canvas {
    height: min(62vh, 640px);
  }
}