:root {
  --ink: #132740;
  --muted: #5d6774;
  --accent: #cf5f28;
  --accent-soft: #fff0e6;
  --success: #1d7b66;
  --success-soft: #e9faf5;
  --danger: #b42318;
  --danger-soft: #fff1f1;
  --line: rgba(19, 39, 64, 0.12);
  --line-strong: rgba(19, 39, 64, 0.22);
  --panel: rgba(255, 253, 247, 0.95);
  --panel-2: rgba(250, 246, 239, 0.92);
  --shadow: 0 18px 44px rgba(19, 39, 64, 0.08);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(207, 95, 40, 0.12), transparent 32%),
    linear-gradient(135deg, #f4efe4 0%, #f8f5ee 38%, #e5ebef 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(19, 39, 64, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(19, 39, 64, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.88), transparent 92%);
}

.page-shell {
  position: relative;
  z-index: 1;
  max-width: 1720px;
  margin: 0 auto;
  padding: 28px;
}

.hero {
  display: flex;
  gap: 24px;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 24px;
  padding: 22px 26px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  background:
    linear-gradient(180deg, rgba(255, 253, 247, 0.92), rgba(255, 253, 247, 0.84)),
    linear-gradient(115deg, rgba(207, 95, 40, 0.08), transparent 46%);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.76rem;
  color: var(--accent);
  font-weight: 700;
}

h1,
h2,
h3,
summary {
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 3.6vw, 3.5rem);
  line-height: 0.95;
}

.hero-copy {
  max-width: 760px;
  margin: 12px 0 0;
  font-size: 0.98rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: end;
}

button {
  appearance: none;
  border: none;
  cursor: pointer;
  border-radius: 999px;
  font: 600 0.94rem "Avenir Next", "Trebuchet MS", sans-serif;
  padding: 0.85rem 1.2rem;
  transition:
    transform 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

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

button.primary {
  background: linear-gradient(135deg, #cf5f28, #e07a3f);
  color: #fffdf9;
  box-shadow: 0 10px 24px rgba(207, 95, 40, 0.22);
}

button.ghost {
  background: rgba(255, 253, 247, 0.7);
  color: var(--ink);
  border: 1px solid var(--line-strong);
}

button.danger {
  color: var(--danger);
}

button.small {
  padding: 0.55rem 0.9rem;
  font-size: 0.82rem;
}

.full-button {
  width: 100%;
  margin-top: 14px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(360px, 510px) minmax(0, 1fr);
  gap: 24px;
}

.sidebar,
.workspace {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel,
.subpanel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel {
  padding: 18px;
}

.subpanel {
  padding: 16px;
}

details.panel,
details.subpanel {
  padding: 0;
  overflow: hidden;
}

.panel-head {
  display: flex;
  gap: 14px;
  align-items: start;
  margin-bottom: 18px;
}

.panel-head.compact {
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.panel-head h2,
.subpanel h3 {
  margin: 0 0 4px;
}

.panel-head p,
.subpanel p {
  margin: 0;
  color: var(--muted);
}

.accordion-summary {
  list-style: none;
  cursor: pointer;
  margin: 0;
  align-items: center;
  padding: 18px;
  user-select: none;
}

.accordion-summary::-webkit-details-marker {
  display: none;
}

.accordion-copy {
  min-width: 0;
}

.accordion-panel[open],
.accordion-subpanel[open] {
  border-color: rgba(207, 95, 40, 0.24);
}

.accordion-panel[data-active="true"],
.accordion-subpanel[data-active="true"] {
  box-shadow:
    0 18px 44px rgba(19, 39, 64, 0.08),
    0 0 0 1px rgba(207, 95, 40, 0.16);
}

.accordion-chevron {
  margin-left: auto;
  width: 12px;
  height: 12px;
  border-right: 2px solid rgba(19, 39, 64, 0.58);
  border-bottom: 2px solid rgba(19, 39, 64, 0.58);
  transform: rotate(45deg);
  transition: transform 180ms ease, border-color 180ms ease;
  flex: 0 0 auto;
}

details[open] > .accordion-summary .accordion-chevron {
  transform: rotate(225deg);
  border-color: var(--accent);
}

.accordion-body {
  padding: 0 18px 18px;
  animation: accordion-fade 180ms ease;
}

@keyframes accordion-fade {
  from {
    opacity: 0.18;
    transform: translateY(-4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.subpanel-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
}

.subpanel-summary h3 {
  margin: 0 0 4px;
}

.subpanel-summary p {
  margin: 0;
  color: var(--muted);
}

.field-hint {
  margin-top: 2px;
  font-size: 0.8rem;
  line-height: 1.35;
  color: var(--muted);
}

.panel-step {
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-soft), #fff9ef);
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.06em;
}

.field-grid {
  display: grid;
  gap: 14px;
}

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

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

label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 0.91rem;
  color: var(--muted);
}

label > span {
  font-weight: 600;
  color: var(--ink);
}

input,
select,
textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  padding: 0.8rem 0.9rem;
  font: 500 0.96rem "Avenir Next", "Trebuchet MS", sans-serif;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(207, 95, 40, 0.2);
  border-color: rgba(207, 95, 40, 0.45);
}

.checkbox-row {
  flex-direction: row;
  align-items: center;
  gap: 10px;
  padding-top: 27px;
}

.checkbox-row input {
  width: auto;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.overview-grid {
  grid-template-columns: 1.1fr 0.9fr;
}

.metric-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 253, 247, 0.96), rgba(250, 246, 239, 0.96));
  box-shadow: var(--shadow);
}

.metric-card.pass {
  border-color: rgba(29, 123, 102, 0.35);
  background: linear-gradient(180deg, rgba(233, 250, 245, 0.98), rgba(255, 253, 247, 0.94));
}

.metric-card.fail,
.metric-card.warn {
  border-color: rgba(180, 35, 24, 0.28);
  background: linear-gradient(180deg, rgba(255, 241, 241, 0.98), rgba(255, 253, 247, 0.94));
}

.metric-label {
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

.metric-value {
  font-size: 1.25rem;
  line-height: 1.05;
}

.metric-sub {
  color: var(--muted);
  font-size: 0.88rem;
}

.tab-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab-button {
  background: rgba(255, 253, 247, 0.72);
  border: 1px solid var(--line);
  color: var(--ink);
}

.tab-button.active {
  background: linear-gradient(135deg, #132740, #274864);
  color: #fffdf7;
  border-color: transparent;
}

.tab-button[aria-selected="true"] {
  box-shadow: 0 8px 18px rgba(19, 39, 64, 0.14);
}

.tab-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tab-panel[hidden] {
  display: none !important;
}

.analysis-grid {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  gap: 18px;
}

.governing-banner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 253, 247, 0.95), rgba(250, 246, 239, 0.95));
}

.governing-banner.pass {
  background: linear-gradient(180deg, rgba(233, 250, 245, 0.95), rgba(255, 253, 247, 0.95));
  border-color: rgba(29, 123, 102, 0.28);
}

.governing-banner.fail {
  background: linear-gradient(180deg, rgba(255, 241, 241, 0.95), rgba(255, 253, 247, 0.95));
  border-color: rgba(180, 35, 24, 0.2);
}

.governing-label {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  color: var(--accent);
  font-weight: 800;
}

.governing-banner h4 {
  margin: 0 0 8px;
  font-size: 1.35rem;
}

.governing-banner p {
  margin: 0;
  color: var(--muted);
}

.governing-note {
  margin-top: 10px !important;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.governing-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(88px, 1fr));
  gap: 10px;
  min-width: 220px;
}

.governing-metrics div {
  padding: 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
}

.governing-metrics span {
  display: block;
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

.governing-metrics strong {
  display: block;
  margin-top: 4px;
  font-size: 1rem;
}

.derived-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.derived-card {
  padding: 12px 13px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.derived-card span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.derived-card strong {
  display: block;
  margin-top: 4px;
  font-size: 1rem;
}

.alert-list,
.reference-list,
.report-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.alert-item {
  display: flex;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.72);
}

.alert-item.error,
.alert-item.warning {
  background: var(--danger-soft);
  border-color: rgba(180, 35, 24, 0.18);
}

.alert-item.ok {
  background: var(--success-soft);
  border-color: rgba(29, 123, 102, 0.2);
}

.chart-actions,
.drawing-actions,
.report-actions {
  display: flex;
  justify-content: end;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.report-status {
  margin-left: auto;
  padding: 0.65rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 253, 247, 0.82);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.84rem;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

canvas {
  width: 100%;
  min-height: 340px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #f7f4ec;
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 0.75rem 0.68rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 0.92rem;
}

th {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.load-table input,
.results-table input {
  min-width: 96px;
  padding: 0.55rem 0.62rem;
}

.case-name {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.case-badge {
  width: fit-content;
  padding: 0.22rem 0.48rem;
  border-radius: 999px;
  background: rgba(207, 95, 40, 0.12);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.row-pass {
  background: rgba(233, 250, 245, 0.55);
}

.row-fail {
  background: rgba(255, 241, 241, 0.55);
}

.row-governing {
  box-shadow: inset 4px 0 0 var(--accent);
}

.status-pill {
  display: inline-block;
  padding: 0.35rem 0.58rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.status-pill.pass {
  color: var(--success);
  background: var(--success-soft);
}

.status-pill.fail {
  color: var(--danger);
  background: var(--danger-soft);
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.calc-group {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 253, 247, 0.76);
  overflow: hidden;
}

.calc-group summary {
  padding: 14px 16px;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 700;
}

.calc-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0 14px 14px;
}

.calc-step-card {
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 254, 250, 0.98), rgba(249, 245, 237, 0.95));
  padding: 14px;
}

.calc-step-card.pass {
  border-color: rgba(29, 123, 102, 0.25);
}

.calc-step-card.fail {
  border-color: rgba(180, 35, 24, 0.22);
}

.calc-step-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
  margin-bottom: 8px;
}

.calc-step-head h4 {
  margin: 2px 0 0;
  font-size: 1.05rem;
}

.calc-step-section {
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 800;
}

.calc-step-status {
  flex: 0 0 auto;
  padding: 0.28rem 0.56rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(19, 39, 64, 0.08);
}

.calc-step-status.pass {
  background: var(--success-soft);
  color: var(--success);
}

.calc-step-status.fail {
  background: var(--danger-soft);
  color: var(--danger);
}

.calc-step-clause {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.84rem;
}

.equation-block {
  margin: 10px 0;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(19, 39, 64, 0.08);
  background: rgba(255, 255, 255, 0.65);
  overflow-x: auto;
}

.equation-block.primary {
  background: rgba(239, 245, 252, 0.95);
  border-color: rgba(39, 72, 100, 0.12);
}

.equation-block.result {
  background: rgba(255, 244, 234, 0.95);
  border-color: rgba(207, 95, 40, 0.16);
}

.equation-block.secondary {
  background: rgba(250, 247, 241, 0.9);
}

.equation-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.calc-step-subsection h5 {
  margin: 0 0 8px;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.calc-list {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.variable-table {
  width: 100%;
  border-collapse: collapse;
}

.variable-table th,
.variable-table td {
  font-size: 0.84rem;
  padding: 0.45rem 0.35rem;
}

.symbol-cell {
  min-width: 72px;
}

.calc-conclusion {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.92rem;
}

.calc-conclusion.pass {
  background: var(--success-soft);
  color: #14584a;
}

.calc-conclusion.fail {
  background: var(--danger-soft);
  color: #85201a;
}

.calc-conclusion.info {
  background: rgba(239, 245, 252, 0.95);
  color: #29435d;
}

.math-display-fallback,
.math-inline-fallback {
  font-family: "SFMono-Regular", Consolas, monospace;
  white-space: pre-wrap;
}

.math-display-fallback {
  display: block;
}

.katex-display {
  margin: 0;
}

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

.drawing-sheet,
.report-preview {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
}

.drawing-sheet svg {
  width: 100%;
  height: auto;
  display: block;
}

.model-viewport {
  min-height: 620px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #f7f4ec;
  position: relative;
}

.model-viewport canvas {
  min-height: unset;
  border: none;
  border-radius: 0;
}

.model-canvas-wrap svg {
  width: 100%;
  height: 100%;
  display: block;
}

.model-shell {
  position: relative;
  min-height: 620px;
}

.model-canvas-wrap {
  position: absolute;
  inset: 0;
}

.model-toolbar {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.model-toolbar button {
  padding: 0.55rem 0.8rem;
  font-size: 0.8rem;
}

.model-overlay {
  position: absolute;
  right: 14px;
  top: 14px;
  z-index: 2;
  width: min(290px, calc(100% - 28px));
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 253, 247, 0.88);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.model-overlay h4 {
  margin: 0 0 8px;
}

.model-overlay p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.model-note-inline {
  display: inline-block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.8rem;
}

.model-legend {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}

.model-legend span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--ink);
}

.model-swatch {
  width: 14px;
  height: 14px;
  border-radius: 4px;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 420px;
  color: var(--muted);
  text-align: center;
  padding: 24px;
}

.report-preview {
  padding: 22px;
  background: #f0ece4;
}

.report-placeholder {
  padding: 18px;
}

.report-placeholder-card {
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: start;
  gap: 10px;
  padding: 28px;
  border-radius: 16px;
  border: 1px dashed rgba(19, 39, 64, 0.18);
  background: rgba(255, 253, 247, 0.88);
}

.report-placeholder-card h3 {
  margin: 0;
}

.report-placeholder-card p:last-child {
  max-width: 640px;
  margin: 0;
  color: var(--muted);
}

.report-page {
  margin: 0 auto 20px;
  max-width: 980px;
  padding: 28px;
  background: #fffdfa;
  border: 1px solid rgba(19, 39, 64, 0.1);
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(19, 39, 64, 0.08);
  break-after: page;
}

.report-cover {
  min-height: 1120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.report-governing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  margin-bottom: 18px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid rgba(19, 39, 64, 0.1);
}

.report-governing.pass {
  background: var(--success-soft);
}

.report-governing.fail {
  background: var(--danger-soft);
}

.report-governing h3 {
  margin-top: 0;
}

.report-governing-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(90px, 1fr));
  gap: 10px;
  min-width: 220px;
}

.report-governing-metrics div {
  padding: 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
}

.report-governing-metrics span {
  display: block;
  font-size: 0.74rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.report-kicker {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
}

.report-page h1 {
  margin: 10px 0 12px;
  font-size: 3rem;
}

.report-page h2 {
  margin: 0 0 16px;
  font-size: 1.6rem;
}

.report-page h3 {
  margin: 0 0 12px;
  font-size: 1.08rem;
}

.report-meta {
  margin: 4px 0;
  color: var(--muted);
}

.report-note {
  margin-top: 24px;
  max-width: 720px;
  padding: 18px;
  border-radius: 14px;
  background: var(--accent-soft);
  border: 1px solid rgba(207, 95, 40, 0.16);
}

.report-grid {
  display: grid;
  gap: 16px;
}

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

.report-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.report-card {
  padding: 16px;
  border-radius: 14px;
  border: 1px solid rgba(19, 39, 64, 0.1);
  background: #fffcf4;
}

.report-card p {
  margin: 0 0 10px;
}

.report-card p:last-child {
  margin-bottom: 0;
}

.report-metric {
  display: block;
  margin-bottom: 6px;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.report-table {
  width: 100%;
}

.report-table th,
.report-table td {
  font-size: 0.88rem;
}

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

.report-image-grid img {
  width: 100%;
  border: 1px solid rgba(19, 39, 64, 0.12);
  border-radius: 12px;
}

.report-model-image {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(19, 39, 64, 0.12);
}

.report-drawing-sheet svg {
  width: 100%;
  height: auto;
}

.report-step-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.report-step-group + .report-step-group {
  margin-top: 22px;
}

.report-step-card {
  background: #fffdf7;
}

.empty-state.compact {
  min-height: 120px;
}

@media (max-width: 1280px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .summary-grid,
  .overview-grid,
  .chart-grid,
  .analysis-grid,
  .calc-step-meta,
  .derived-grid,
  .report-grid.two,
  .report-grid.three {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .page-shell {
    padding: 16px;
  }

  .hero,
  .panel-head.compact {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions,
  .tab-row,
  .chart-actions,
  .drawing-actions,
  .report-actions {
    justify-content: stretch;
  }

  .hero-actions button,
  .tab-row button {
    width: 100%;
  }

  .report-status {
    margin-left: 0;
    width: 100%;
  }

  .field-grid.two {
    grid-template-columns: 1fr;
  }
}

@media print {
  body {
    background: #ffffff;
  }

  body::before,
  .hero,
  .sidebar,
  .summary-grid,
  .tab-row,
  .drawing-actions,
  .chart-actions,
  .report-actions,
  #summary-cards,
  #alert-list,
  #results-table-body,
  #step-list,
  #reference-list,
  canvas,
  #drawing-sheet,
  #model-viewport {
    display: none !important;
  }

  .page-shell,
  .layout,
  .workspace,
  .panel,
  .tab-panel,
  .report-preview {
    padding: 0;
    margin: 0;
    background: #ffffff;
    border: none;
    box-shadow: none;
  }

  .report-preview {
    overflow: visible;
  }

  .report-page {
    box-shadow: none;
    border: none;
    margin: 0 auto;
    max-width: none;
    page-break-after: always;
  }
}