:root {
  --tool-dark: #04342c;
  --tool-dark-2: #062b25;
  --tool-green: #1d9e75;
  --tool-green-dark: #168a64;
  --tool-mint: #e9f8f2;
  --tool-mint-2: #f3fbf7;
  --tool-warm: #fffcf7;
  --tool-amber: #e8913a;
  --tool-red: #b42318;
  --tool-text: #1a2332;
  --tool-muted: #5f6b7a;
  --tool-border: #dfe7e3;
  --tool-border-strong: #c9d8d1;
  --tool-surface: #ffffff;
  --tool-shadow: 0 16px 40px rgba(4, 52, 44, 0.08);
  --tool-radius-sm: 8px;
  --tool-radius-md: 12px;
  --tool-radius-lg: 18px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--tool-text);
  background: var(--tool-warm);
}

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

[hidden] {
  display: none !important;
}

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

body.tool-page {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at top left, rgba(29, 158, 117, 0.12), transparent 34rem),
    linear-gradient(180deg, #ffffff 0, var(--tool-warm) 22rem, #ffffff 100%);
  color: var(--tool-text);
  line-height: 1.55;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

.tool-shell {
  width: calc(100vw - 32px);
  max-width: 1180px;
  margin: 0 auto;
}

.tool-nav {
  border-bottom: 1px solid rgba(4, 52, 44, 0.1);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
}

.tool-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 18px;
}

.tool-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--tool-dark);
  text-decoration: none;
}

.tool-brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 50% 50% 50% 8px;
  background: linear-gradient(135deg, var(--tool-dark), var(--tool-green));
  position: relative;
}

.tool-brand-mark::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 2px;
  background: rgba(255, 255, 255, 0.78);
  left: 8px;
  top: 17px;
  transform: rotate(-34deg);
  border-radius: 999px;
}

.tool-brand span span {
  display: block;
  color: var(--tool-muted);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.1;
}

.tool-nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--tool-muted);
  font-size: 0.92rem;
  font-weight: 650;
}

.tool-nav-links a {
  text-decoration: none;
}

.tool-hero {
  padding: 44px 0 26px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 32px;
  align-items: end;
}

.hero-grid,
.calculator-layout,
.tool-card,
.summary-panel,
.result-grid,
.education-grid {
  min-width: 0;
}

.brand-label {
  display: inline-block;
  color: var(--tool-green-dark);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  color: var(--tool-dark);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: 0;
  margin-bottom: 14px;
}

.hero-copy {
  color: #314254;
  font-size: clamp(1rem, 2vw, 1.22rem);
  max-width: 760px;
  margin-bottom: 18px;
  overflow-wrap: anywhere;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  color: var(--tool-dark);
  font-weight: 700;
  font-size: 0.92rem;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}

.trust-row span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--tool-green);
}

.hero-note {
  background: linear-gradient(135deg, var(--tool-mint), #ffffff);
  border: 1px solid rgba(29, 158, 117, 0.18);
  border-radius: var(--tool-radius-lg);
  padding: 22px;
  box-shadow: var(--tool-shadow);
}

.hero-note p {
  color: var(--tool-dark);
  font-size: 1.05rem;
  font-weight: 750;
  margin-bottom: 8px;
}

.hero-note small {
  color: var(--tool-muted);
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 24px;
  align-items: start;
  padding-bottom: 36px;
}

.input-stack {
  display: grid;
  gap: 18px;
}

.tool-card,
.summary-panel,
.education-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--tool-border);
  border-radius: var(--tool-radius-lg);
  box-shadow: 0 8px 30px rgba(4, 52, 44, 0.06);
}

.tool-card {
  padding: clamp(18px, 3vw, 26px);
}

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

.section-head h2,
.section-head h3 {
  color: var(--tool-dark);
  font-size: 1.28rem;
  line-height: 1.2;
  margin-bottom: 5px;
}

.section-head p,
.help-copy {
  color: var(--tool-muted);
  font-size: 0.94rem;
  margin-bottom: 0;
}

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

.radio-card {
  position: relative;
  display: grid;
  gap: 3px;
  min-height: 82px;
  border: 1px solid var(--tool-border);
  border-radius: var(--tool-radius-md);
  padding: 14px 14px 14px 42px;
  background: #fff;
  color: var(--tool-text);
}

.radio-card input {
  position: absolute;
  left: 14px;
  top: 18px;
  width: 18px;
  height: 18px;
  accent-color: var(--tool-green);
}

.radio-card strong {
  color: var(--tool-dark);
  font-size: 0.96rem;
}

.radio-card small {
  color: var(--tool-muted);
  font-size: 0.8rem;
}

.radio-card:has(input:checked) {
  border-color: rgba(29, 158, 117, 0.55);
  background: var(--tool-mint-2);
  box-shadow: inset 0 0 0 1px rgba(29, 158, 117, 0.18);
}

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

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

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

label,
.field-label {
  color: #253545;
  font-size: 0.88rem;
  font-weight: 750;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--tool-border-strong);
  border-radius: var(--tool-radius-sm);
  background: #fff;
  color: var(--tool-text);
  padding: 11px 12px;
  min-height: 44px;
}

textarea {
  min-height: 72px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus,
button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(29, 158, 117, 0.24);
  outline-offset: 2px;
  border-color: var(--tool-green);
}

.inline-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.mode-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.pill-button,
.secondary-button,
.primary-button,
.ghost-button,
.danger-button {
  border-radius: var(--tool-radius-sm);
  border: 1px solid var(--tool-border-strong);
  background: #fff;
  color: var(--tool-dark);
  min-height: 42px;
  padding: 10px 14px;
  font-weight: 800;
  font-size: 0.92rem;
}

.pill-button[aria-pressed="true"],
.primary-button {
  border-color: var(--tool-green);
  background: var(--tool-green);
  color: #fff;
}

.primary-button:hover {
  background: var(--tool-green-dark);
}

.secondary-button {
  background: var(--tool-mint-2);
}

.ghost-button {
  background: transparent;
}

.danger-button {
  color: var(--tool-red);
  border-color: rgba(180, 35, 24, 0.25);
}

.line-items {
  display: grid;
  gap: 12px;
}

.item-row {
  display: grid;
  grid-template-columns: minmax(150px, 1.3fr) repeat(5, minmax(82px, 0.8fr)) 96px 42px;
  gap: 10px;
  align-items: start;
  padding: 12px;
  border: 1px solid var(--tool-border);
  border-radius: var(--tool-radius-md);
  background: #fff;
}

.item-row.direct {
  grid-template-columns: minmax(180px, 1fr) 150px 42px;
}

.item-row.packaging-pack {
  grid-template-columns: minmax(150px, 1.2fr) repeat(3, minmax(90px, 0.8fr)) 96px 42px;
}

.item-cost {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  color: var(--tool-dark);
  font-weight: 850;
  padding: 0 4px;
}

.remove-row {
  width: 42px;
  height: 42px;
  border-radius: var(--tool-radius-sm);
  border: 1px solid rgba(180, 35, 24, 0.2);
  background: #fff7f6;
  color: var(--tool-red);
  font-weight: 900;
}

.field-error,
.row-error {
  color: var(--tool-red);
  font-size: 0.8rem;
  font-weight: 700;
  min-height: 1em;
}

.total-line {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--tool-border);
  color: var(--tool-dark);
  font-weight: 850;
}

.labour-methods {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.conditional {
  display: none;
}

.conditional.active {
  display: block;
}

details.help-details {
  margin-top: 14px;
  border: 1px solid var(--tool-border);
  border-radius: var(--tool-radius-md);
  padding: 0 14px;
  background: var(--tool-mint-2);
}

details.help-details summary {
  cursor: pointer;
  padding: 12px 0;
  color: var(--tool-dark);
  font-weight: 800;
}

details.help-details p,
details.help-details ul {
  color: var(--tool-muted);
  margin: 0 0 14px;
}

.summary-panel {
  position: sticky;
  top: 18px;
  padding: 18px;
}

.summary-panel h2 {
  color: var(--tool-dark);
  font-size: 1.16rem;
  margin-bottom: 4px;
}

.summary-panel > p {
  color: var(--tool-muted);
  font-size: 0.86rem;
  margin-bottom: 16px;
}

.metric {
  border-radius: var(--tool-radius-md);
  padding: 15px;
  background: linear-gradient(135deg, #fff, var(--tool-mint-2));
  border: 1px solid var(--tool-border);
  margin-bottom: 12px;
}

.metric span {
  display: block;
  color: var(--tool-muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.metric strong {
  display: block;
  color: var(--tool-dark);
  font-size: 1.85rem;
  line-height: 1.1;
  letter-spacing: 0;
}

.summary-list {
  display: grid;
  gap: 8px;
  margin: 12px 0 16px;
}

.summary-list div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: #314254;
  font-size: 0.92rem;
}

.summary-list strong {
  color: var(--tool-dark);
}

.margin-options,
.practical-options {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 10px 0;
}

.margin-options button,
.practical-options button {
  border: 1px solid var(--tool-border-strong);
  border-radius: var(--tool-radius-sm);
  background: #fff;
  padding: 10px 8px;
  font-weight: 850;
  color: var(--tool-dark);
}

.margin-options button.active,
.practical-options button.active {
  border-color: var(--tool-green);
  background: var(--tool-dark);
  color: #fff;
}

.formula-box {
  border-left: 4px solid var(--tool-green);
  background: var(--tool-mint-2);
  padding: 12px;
  border-radius: 0 var(--tool-radius-sm) var(--tool-radius-sm) 0;
  color: #253545;
  font-weight: 750;
  margin: 12px 0;
}

.result-section {
  padding: 24px 0 44px;
}

.result-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
}

.result-hero {
  background: linear-gradient(135deg, var(--tool-dark), #075246);
  color: #fff;
  border-radius: var(--tool-radius-lg);
  padding: clamp(20px, 4vw, 32px);
}

.result-hero h2,
.result-hero h3 {
  color: #fff;
}

.result-price {
  font-size: clamp(2.2rem, 7vw, 4.6rem);
  line-height: 1;
  font-weight: 900;
  margin: 8px 0 18px;
}

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

.result-hero .result-stats div {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--tool-radius-md);
  padding: 12px;
}

.result-hero .result-stats span {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.8rem;
}

.result-hero .result-stats strong {
  font-size: 1.1rem;
}

.summary-card .result-stats div {
  border: 1px solid var(--tool-border);
  border-radius: var(--tool-radius-md);
  padding: 12px;
  background: var(--tool-mint-2);
}

.summary-card .result-stats span {
  display: block;
  color: var(--tool-muted);
  font-size: 0.8rem;
}

.summary-card .result-stats strong {
  color: var(--tool-dark);
}

.scenario-card,
.summary-card {
  padding: 20px;
}

.warning {
  display: none;
  border: 1px solid rgba(180, 35, 24, 0.28);
  border-radius: var(--tool-radius-md);
  background: #fff5f3;
  color: var(--tool-red);
  padding: 12px;
  font-weight: 750;
  margin: 12px 0;
}

.warning.active {
  display: block;
}

.copy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.copy-status {
  color: var(--tool-green-dark);
  font-weight: 800;
  font-size: 0.88rem;
  min-height: 1.2em;
}

.education-section {
  padding: 18px 0 56px;
}

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

.education-card {
  padding: 22px;
}

.education-card h2 {
  color: var(--tool-dark);
  font-size: 1.35rem;
}

.accordion-list details {
  border-top: 1px solid var(--tool-border);
}

.accordion-list details:first-child {
  border-top: 0;
}

.accordion-list summary {
  cursor: pointer;
  padding: 14px 0;
  color: var(--tool-dark);
  font-weight: 850;
}

.accordion-list p {
  color: var(--tool-muted);
  margin-bottom: 14px;
}

.example-table,
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
}

.example-table th,
.example-table td,
.comparison-table th,
.comparison-table td {
  border-bottom: 1px solid var(--tool-border);
  padding: 10px 6px;
  text-align: left;
  vertical-align: top;
}

.example-table td:last-child,
.comparison-table td:last-child,
.comparison-table th:last-child {
  text-align: right;
}

.cta-band {
  margin: 24px 0 56px;
  background: linear-gradient(135deg, var(--tool-dark), #075246);
  color: #fff;
  border-radius: var(--tool-radius-lg);
  padding: 26px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.cta-band h2 {
  color: #fff;
  margin-bottom: 8px;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 0;
}

.cta-band a {
  flex: 0 0 auto;
  text-decoration: none;
  background: #fff;
  color: var(--tool-dark);
  border-radius: var(--tool-radius-sm);
  padding: 12px 16px;
  font-weight: 900;
}

.tool-footer {
  border-top: 1px solid var(--tool-border);
  padding: 24px 0;
  color: var(--tool-muted);
  font-size: 0.88rem;
}

.mobile-summary {
  display: none;
  position: sticky;
  bottom: 0;
  z-index: 10;
  background: rgba(4, 52, 44, 0.96);
  color: #fff;
  padding: 10px 16px;
  font-weight: 850;
  box-shadow: 0 -10px 24px rgba(4, 52, 44, 0.18);
}

.mobile-summary span {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  width: min(760px, 100%);
  margin: 0 auto;
}

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

.serving-tool .mode-selector .mode-card {
  appearance: none;
  text-align: left;
}

.serving-tool .mode-card[aria-pressed="true"] {
  border-color: rgba(29, 158, 117, 0.55);
  background: var(--tool-mint-2);
  box-shadow: inset 0 0 0 1px rgba(29, 158, 117, 0.18);
}

.serving-tool .nested-tool-card {
  margin-top: 18px;
  box-shadow: none;
  background: var(--tool-mint-2);
}

.serving-tool .tier-list {
  display: grid;
  gap: 12px;
}

.serving-tool .tier-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.8fr) minmax(140px, 1fr) minmax(180px, 1.2fr) minmax(110px, 0.8fr) 42px;
  gap: 10px;
  align-items: end;
  border: 1px solid var(--tool-border);
  border-radius: var(--tool-radius-md);
  background: #fff;
  padding: 12px;
}

.serving-tool .check-card {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--tool-border-strong);
  border-radius: var(--tool-radius-sm);
  padding: 9px 10px;
  background: #fff;
}

.serving-tool .check-card input {
  width: 18px;
  min-height: 18px;
  accent-color: var(--tool-green);
}

.serving-tool .tier-servings {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  color: var(--tool-dark);
  font-weight: 850;
}

.serving-tool .recommendation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.serving-tool .recommendation-card {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--tool-radius-md);
  background: rgba(255, 255, 255, 0.1);
  padding: 14px;
}

.serving-tool .recommendation-card .eyebrow {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.serving-tool .recommendation-card h3 {
  margin-bottom: 8px;
}

.serving-tool .recommendation-card strong {
  display: block;
  font-size: 1.45rem;
  line-height: 1.1;
  margin-bottom: 8px;
}

.serving-tool .recommendation-card p,
.serving-result > p,
.serving-result .help-copy {
  color: rgba(255, 255, 255, 0.78);
}

.serving-result .summary-list div {
  color: rgba(255, 255, 255, 0.82);
}

.serving-result .summary-list strong {
  color: #fff;
}

.serving-result .weight-headline {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.1);
}

.serving-result .weight-headline span,
.serving-result .weight-headline strong {
  color: #fff;
}

.serving-tool .methodology-card {
  margin-bottom: 24px;
}

@media (max-width: 980px) {
  .hero-grid,
  .calculator-layout,
  .result-grid,
  .education-grid {
    grid-template-columns: 1fr;
  }

  .summary-panel {
    position: static;
  }

  .hero-note {
    display: none;
  }

  .item-row,
  .item-row.direct {
    grid-template-columns: 1fr 1fr;
  }

  .serving-tool .tier-row {
    grid-template-columns: 1fr 1fr;
  }

  .item-row .field:first-child,
  .item-row .row-error,
  .serving-tool .tier-row .check-card {
    grid-column: 1 / -1;
  }

  .remove-row,
  .serving-tool .tier-servings {
    justify-self: end;
  }

  .mobile-summary.has-values {
    display: block;
  }
}

@media (max-width: 680px) {
  .tool-shell {
    width: min(360px, calc(100vw - 24px));
    margin-left: 12px;
    margin-right: auto;
  }

  .tool-nav-links {
    display: none;
  }

  .tool-hero {
    padding-top: 30px;
  }

  .hero-copy,
  .trust-row {
    max-width: 100%;
  }

  .trust-row {
    display: grid;
    gap: 8px;
  }

  .trust-row span {
    display: flex;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .segmented,
  .form-grid,
  .labour-methods,
  .result-stats {
    grid-template-columns: 1fr;
  }

  .margin-options,
  .practical-options {
    grid-template-columns: repeat(2, 1fr);
  }

  .item-row,
  .item-row.direct,
  .serving-tool .tier-row,
  .inline-fields {
    grid-template-columns: 1fr;
  }

  .cta-band {
    display: block;
  }

  .cta-band a {
    display: inline-block;
    margin-top: 16px;
  }
}

@media print {
  body.tool-page {
    background: #fff;
  }

  .tool-nav,
  .tool-hero,
  .input-stack,
  .summary-panel,
  .education-section,
  .cta-band,
  .tool-footer,
  .mobile-summary,
  .copy-actions,
  .scenario-card,
  .warning:not(.active) {
    display: none !important;
  }

  .tool-shell {
    width: 100%;
  }

  .result-section {
    padding: 0;
  }

  .result-grid {
    display: block;
  }

  .result-hero {
    color: #111;
    background: #fff;
    border: 1px solid #bbb;
    box-shadow: none;
  }

  .result-hero h2,
  .result-hero h3 {
    color: #111;
  }

  .result-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .result-stats div {
    color: #111;
    background: #fff;
    border: 1px solid #bbb;
  }

  .result-stats span {
    color: #444;
  }

  .summary-card,
  .tool-card {
    border: 0;
    box-shadow: none;
    padding: 0;
  }
}