/* Klarwerk Systems LLC — Institutional Swiss / Architectural Stylesheet
   Zero external trackers, zero webfont network blocking, adaptive light/dark mode. */

:root {
  /* Light palette: Archival warm stone & carbon ink + industrial slate-forest accent */
  --bg-canvas-light: #faf9f6;
  --bg-surface-light: #f2f0ea;
  --bg-elevated-light: #ffffff;
  --ink-primary-light: #121311;
  --ink-secondary-light: #4a4d47;
  --ink-muted-light: #686b64;
  --border-hairline-light: #d5d2c9;
  --border-strong-light: #8a877e;
  --accent-light: #1b4332;
  --accent-subtle-light: #e6ede9;

  /* Dark palette: Matte obsidian & warm parchment ink + mineral sage accent */
  --bg-canvas-dark: #0e100f;
  --bg-surface-dark: #151816;
  --bg-elevated-dark: #1a1e1c;
  --ink-primary-dark: #eceae4;
  --ink-secondary-dark: #b3b5ae;
  --ink-muted-dark: #8a8d86;
  --border-hairline-dark: #2a2e2b;
  --border-strong-dark: #5c615d;
  --accent-dark: #84c5a4;
  --accent-subtle-dark: #192921;

  /* Default (light) fallbacks before light-dark() */
  --bg-canvas: var(--bg-canvas-light);
  --bg-surface: var(--bg-surface-light);
  --bg-elevated: var(--bg-elevated-light);
  --ink-primary: var(--ink-primary-light);
  --ink-secondary: var(--ink-secondary-light);
  --ink-muted: var(--ink-muted-light);
  --border-hairline: var(--border-hairline-light);
  --border-strong: var(--border-strong-light);
  --accent: var(--accent-light);
  --accent-subtle: var(--accent-subtle-light);

  /* Typography & rhythm */
  --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Inter", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --max-width: 72rem;

  color-scheme: light dark;
  accent-color: var(--accent);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-canvas: var(--bg-canvas-dark);
    --bg-surface: var(--bg-surface-dark);
    --bg-elevated: var(--bg-elevated-dark);
    --ink-primary: var(--ink-primary-dark);
    --ink-secondary: var(--ink-secondary-dark);
    --ink-muted: var(--ink-muted-dark);
    --border-hairline: var(--border-hairline-dark);
    --border-strong: var(--border-strong-dark);
    --accent: var(--accent-dark);
    --accent-subtle: var(--accent-subtle-dark);
  }
}

@supports (color: light-dark(white, black)) {
  :root {
    --bg-canvas: light-dark(var(--bg-canvas-light), var(--bg-canvas-dark));
    --bg-surface: light-dark(var(--bg-surface-light), var(--bg-surface-dark));
    --bg-elevated: light-dark(var(--bg-elevated-light), var(--bg-elevated-dark));
    --ink-primary: light-dark(var(--ink-primary-light), var(--ink-primary-dark));
    --ink-secondary: light-dark(var(--ink-secondary-light), var(--ink-secondary-dark));
    --ink-muted: light-dark(var(--ink-muted-light), var(--ink-muted-dark));
    --border-hairline: light-dark(var(--border-hairline-light), var(--border-hairline-dark));
    --border-strong: light-dark(var(--border-strong-light), var(--border-strong-dark));
    --accent: light-dark(var(--accent-light), var(--accent-dark));
    --accent-subtle: light-dark(var(--accent-subtle-light), var(--accent-subtle-dark));
  }
}

@media (forced-colors: active) {
  :root {
    --bg-canvas: Canvas;
    --bg-surface: Canvas;
    --bg-elevated: Canvas;
    --ink-primary: CanvasText;
    --ink-secondary: CanvasText;
    --ink-muted: GrayText;
    --border-hairline: CanvasText;
    --border-strong: CanvasText;
    --accent: LinkText;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background-color: var(--bg-canvas);
  color: var(--ink-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background-color: var(--accent-subtle);
  color: var(--ink-primary);
}

/* Accessibility skip link */
.skip-link {
  position: absolute;
  inset-block-start: -3rem;
  inset-inline-start: 1rem;
  background: var(--ink-primary);
  color: var(--bg-canvas);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  inset-block-start: 1rem;
}

a {
  color: var(--ink-primary);
  text-underline-offset: 0.22em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent);
}

a:focus-visible,
div[tabindex="0"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.container {
  max-inline-size: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

/* Top institutional bar & navigation */
.site-header {
  border-block-end: 1px solid var(--border-hairline);
  background-color: var(--bg-canvas);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding-block: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--ink-primary);
}

.brand-mark {
  inline-size: 1.75rem;
  block-size: 1.75rem;
  flex-shrink: 0;
}

.brand-name {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-jurisdiction {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-inline-start: 0.65rem;
  border-inline-start: 1px solid var(--border-hairline);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-block-size: 1.5rem;
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--ink-secondary);
  font-weight: 500;
}

@media (pointer: coarse) {
  .site-nav a,
  .btn-secondary,
  .footer-links a {
    min-block-size: 2.25rem;
  }
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink-primary);
  text-decoration: underline;
}

/* Architectural Hero Section */
.hero {
  padding-block: clamp(3.5rem, 8vw, 6.5rem) clamp(3rem, 6vw, 5rem);
  border-block-end: 1px solid var(--border-hairline);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-block-end: 1.5rem;
}

.eyebrow-rule {
  display: inline-block;
  inline-size: 1.75rem;
  block-size: 1px;
  background-color: var(--accent);
}

.hero h1 {
  margin: 0;
  max-inline-size: 18ch;
  font-size: clamp(2.1rem, 4.6vw, 3.6rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero-lead {
  margin-block: 1.75rem 2.25rem;
  max-inline-size: 62ch;
  font-size: clamp(1.05rem, 1.5vw, 1.22rem);
  line-height: 1.65;
  color: var(--ink-secondary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.75rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.4rem;
  background-color: var(--ink-primary);
  color: var(--bg-canvas);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--ink-primary);
}

.btn-primary:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--bg-canvas);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  min-block-size: 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-primary);
}

/* Summary Strip */
.spec-band {
  border-block-end: 1px solid var(--border-hairline);
  background-color: var(--bg-surface);
}

.spec-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13.5rem, 1fr));
  border-inline: 1px solid var(--border-hairline);
}

.spec-cell {
  padding: 1.4rem 1.5rem;
  border-inline-end: 1px solid var(--border-hairline);
  border-block-end: 1px solid var(--border-hairline);
}

@media (min-width: 64rem) {
  .spec-cell {
    border-block-end: none;
  }
  .spec-cell:last-child {
    border-inline-end: none;
  }
}

.spec-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  margin-block-end: 0.35rem;
}

.spec-value {
  font-size: 0.95rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink-primary);
}

/* Section Layout */
.section {
  padding-block: clamp(3rem, 6vw, 5rem);
  border-block-end: 1px solid var(--border-hairline);
}

.section-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem 2rem;
  margin-block-end: 2.75rem;
}

@media (min-width: 48rem) {
  .section-header {
    grid-template-columns: 14rem 1fr;
    align-items: baseline;
  }
}

.section-index {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.section-title {
  margin: 0;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-subtitle {
  margin-block: 0.75rem 0;
  max-inline-size: 62ch;
  color: var(--ink-secondary);
  font-size: 1rem;
}

/* 3-Column Architectural Practice Grid */
.divisions-grid {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-elevated);
}

@media (min-width: 56rem) {
  .divisions-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.division-card {
  padding: 2rem;
  border-block-end: 1px solid var(--border-hairline);
  display: flex;
  flex-direction: column;
}

@media (min-width: 56rem) {
  .division-card {
    border-block-end: none;
    border-inline-end: 1px solid var(--border-hairline);
  }
  .division-card:last-child {
    border-inline-end: none;
  }
}

.division-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-block-end: 1rem;
}

.division-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.division-card p {
  margin: 0 0 1.5rem;
  font-size: 0.94rem;
  color: var(--ink-secondary);
}

.division-list {
  margin-block-start: auto;
  padding: 1rem 0 0;
  list-style: none;
  border-block-start: 1px solid var(--border-hairline);
  font-size: 0.85rem;
  color: var(--ink-secondary);
}

.division-list li {
  position: relative;
  padding-inline-start: 0.85rem;
}

.division-list li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.62em;
  inline-size: 0.35rem;
  block-size: 1px;
  background-color: var(--accent);
}

.division-list li + li {
  margin-block-start: 0.45rem;
}

/* Engineering Principles Two-Column List */
.principles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 48rem) {
  .principles-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem 3.5rem;
  }
}

.principle-item {
  border-block-start: 1px solid var(--border-strong);
  padding-block-start: 1rem;
}

.principle-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.principle-item p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--ink-secondary);
}

/* Responsive Corporate Ledger Table (Container Query Driven) */
.table-wrapper {
  overflow: auto;
  max-inline-size: 100%;
  container-type: inline-size;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-elevated);
}

.ledger-table {
  inline-size: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.9rem;
  text-align: start;
}

.ledger-table caption {
  text-align: start;
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  background-color: var(--bg-surface);
  border-block-end: 1px solid var(--border-hairline);
}

.ledger-table thead {
  position: sticky;
  inset-block-start: 0;
  z-index: 1;
  background-color: var(--bg-surface);
}

.ledger-table th,
.ledger-table td {
  padding: 0.95rem 1.25rem;
  border-block-end: 1px solid var(--border-hairline);
  vertical-align: top;
}

.ledger-table thead th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-secondary);
}

.ledger-table tbody th {
  position: sticky;
  inset-inline-start: 0;
  background-color: var(--bg-elevated);
  font-weight: 600;
  color: var(--ink-primary);
  inline-size: 32%;
}

.ledger-table tbody tr:last-child th,
.ledger-table tbody tr:last-child td {
  border-block-end: none;
}

.muted-inline {
  color: var(--ink-muted);
  font-size: 0.88em;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-variant-numeric: tabular-nums;
}

@container (width < 600px) {
  .ledger-table,
  .ledger-table thead,
  .ledger-table tbody,
  .ledger-table tr,
  .ledger-table th,
  .ledger-table td {
    display: block;
    inline-size: 100%;
  }

  .ledger-table thead {
    display: none;
  }

  .ledger-table tr {
    border-block-end: 1px solid var(--border-strong);
  }

  .ledger-table tr:last-child {
    border-block-end: none;
  }

  .ledger-table tbody th {
    position: static;
    background-color: var(--bg-surface);
    padding-block: 0.65rem;
    font-size: 0.82rem;
  }

  .ledger-table td {
    padding-block: 0.75rem;
    border-block-end: none;
  }
}

/* Legal Document Pages (/privacy & /terms) */
.legal-doc {
  padding-block: clamp(3rem, 6vw, 4.5rem);
}

.legal-container {
  max-inline-size: 48rem;
}

.legal-doc h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.legal-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-muted);
  padding-block-end: 2rem;
  margin-block-end: 2.25rem;
  border-block-end: 1px solid var(--border-hairline);
}

.legal-doc h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.legal-doc p,
.legal-doc li {
  color: var(--ink-secondary);
  font-size: 0.96rem;
}

.legal-doc ul {
  padding-inline-start: 1.25rem;
}

.legal-doc li + li {
  margin-block-start: 0.45rem;
}

.address-box {
  margin-block: 1.5rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  font-style: normal;
  font-size: 0.92rem;
  color: var(--ink-primary);
}

/* Institutional Footer */
.site-footer {
  background-color: var(--bg-surface);
  padding-block: 3rem;
  font-size: 0.875rem;
  color: var(--ink-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-block-end: 2.25rem;
  border-block-end: 1px solid var(--border-hairline);
}

@media (min-width: 48rem) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  margin: 0 0 0.85rem;
}

.footer-address {
  font-style: normal;
  line-height: 1.65;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li + li {
  margin-block-start: 0.5rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  padding-block-start: 1.5rem;
  font-size: 0.8rem;
  color: var(--ink-muted);
}


/* Product Catalog Badges, Forecast Preview & Pricing Table */
.product-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-block-end: 1rem;
}

.product-badge-row .division-code {
  margin-block-end: 0;
}

.status-pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-surface);
  color: var(--ink-secondary);
}

.status-live {
  border-color: var(--accent);
  background-color: var(--accent-subtle);
  color: var(--ink-primary);
  font-weight: 600;
}

.weather-preview {
  margin: 0 0 1.35rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-surface);
  font-size: 0.82rem;
}

.wp-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  padding-block-end: 0.55rem;
  margin-block-end: 0.55rem;
  border-block-end: 1px solid var(--border-hairline);
  color: var(--ink-primary);
}

.wp-metrics {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.76rem;
  color: var(--ink-secondary);
}

.card-cta-wrap {
  margin: 0 0 1.35rem;
}

.card-cta-link {
  display: inline-flex;
  align-items: center;
  min-block-size: 2.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

.pricing-table tbody th {
  inline-size: 28%;
}

.pricing-table tbody td:nth-child(2) {
  inline-size: 20%;
  white-space: nowrap;
}

@container (width < 600px) {
  .pricing-table tbody td:nth-child(2) {
    inline-size: 100%;
    padding-block-end: 0.2rem;
  }
}

.error-actions {
  margin-block-start: 2rem;
}

/* KlarCalc Interactive Business Calculator (/calculator) */
.tool-page {
  padding-block: clamp(2.5rem, 5vw, 4rem);
}

.tool-header {
  margin-block-end: 2.25rem;
}

.tool-header h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 3.2vw, 2.45rem);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.tool-intro {
  margin: 0;
  max-inline-size: 64ch;
  color: var(--ink-secondary);
  font-size: 1rem;
}

.calc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 60rem) {
  .calc-layout {
    grid-template-columns: minmax(0, 1.75fr) minmax(19rem, 1fr);
  }
}

.calc-fieldset {
  margin: 0 0 1.5rem;
  padding: 1.5rem;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-elevated);
}

.calc-fieldset:last-child {
  margin-block-end: 0;
}

.calc-legend {
  padding-inline: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-secondary);
}

.calc-meta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-block-end: 1.25rem;
}

@media (min-width: 40rem) {
  .calc-meta-grid {
    grid-template-columns: 1fr 1.6fr;
  }
}

.calc-rates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 40rem) {
  .calc-rates-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Gestalt Proximity Rule: label-to-input gap smaller than group-to-group gap */
.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  display: block;
  margin-block-end: 0.35rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink-primary);
}

.form-input {
  inline-size: 100%;
  min-block-size: 3rem;
  padding: 0.65rem 0.8rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--ink-primary);
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-strong);
  border-radius: 0;
}

@media (pointer: coarse) {
  .form-input,
  .btn-primary,
  .btn-outline,
  .btn-remove {
    min-block-size: 3.25rem;
  }
}

.form-input:invalid:user-invalid {
  border-color: #b42318;
  outline: 2px solid #b42318;
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.field-hint {
  margin-block-start: 0.35rem;
  font-size: 0.78rem;
  color: var(--ink-muted);
}

.currency-fieldset {
  margin: 0;
  padding: 0;
  border: none;
}

.radio-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block-start: 0.25rem;
}

.radio-option {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-block-size: 3rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-canvas);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
}

.line-items-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.line-item-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  padding-block-end: 1rem;
  border-block-end: 1px solid var(--border-hairline);
}

@media (min-width: 48rem) {
  .line-item-row {
    grid-template-columns: minmax(0, 2.4fr) 6.5rem 7.5rem 7.5rem auto;
    align-items: end;
  }
}

.line-total-cell {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.line-total-value {
  display: inline-flex;
  align-items: center;
  min-block-size: 3rem;
  font-size: 0.95rem;
}

.line-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-block-start: 1.25rem;
}

.btn-outline,
.btn-remove,
.btn-text {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
}

.btn-outline {
  min-block-size: 3rem;
  padding: 0.65rem 1.15rem;
  background-color: var(--bg-canvas);
  color: var(--ink-primary);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-remove {
  min-block-size: 3rem;
  padding: 0.5rem 0.85rem;
  background-color: transparent;
  color: var(--ink-secondary);
  border: 1px solid var(--border-hairline);
}

.btn-remove:hover:not(:disabled) {
  border-color: var(--ink-primary);
  color: var(--ink-primary);
}

.btn-remove:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-text {
  min-block-size: 3rem;
  padding: 0.5rem;
  background: none;
  border: none;
  color: var(--ink-secondary);
  text-decoration: underline;
}

.summary-card {
  padding: 1.5rem;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-elevated);
}

.summary-heading {
  margin: 0 0 1.25rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.summary-list {
  margin: 0;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-block: 0.55rem;
  border-block-end: 1px solid var(--border-hairline);
  font-size: 0.92rem;
}

.summary-row dd {
  margin: 0;
}

.summary-total {
  padding-block: 0.85rem;
  font-size: 1.08rem;
  font-weight: 600;
  border-block-end: 1px solid var(--border-strong);
}

.margin-box {
  margin-block: 1rem 1.35rem;
  padding: 0.65rem 0.9rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
}

.margin-box .summary-row:last-child {
  border-block-end: none;
}

.export-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.btn-full {
  inline-size: 100%;
  min-block-size: 3rem;
  cursor: pointer;
  font-family: var(--font-sans);
}

.export-status {
  margin: 0.75rem 0 0;
  min-block-size: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
}

.upgrade-note {
  margin-block-start: 1rem;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-surface);
  font-size: 0.85rem;
}

.upgrade-note p {
  margin: 0.4rem 0 0;
  color: var(--ink-secondary);
}

.print-only-header {
  display: none;
}

@media print {
  .no-print {
    display: none !important;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  .print-only-header {
    display: flex;
    justify-content: space-between;
    padding-block-end: 1rem;
    margin-block-end: 1.5rem;
    border-block-end: 2px solid #000000;
    font-size: 0.95rem;
  }

  .calc-layout {
    grid-template-columns: 1fr;
  }

  .calc-fieldset,
  .summary-card {
    border-color: #cccccc;
    break-inside: avoid;
  }
}