/**
 * BuildToolsHub — construction jobsite visual system.
 * Cool concrete gray + steel charcoal + hi-vis amber.
 */

:root {
  --ink: #142028;
  --ink-soft: #2a3a46;
  --muted: #5c6f7c;
  --line: rgba(20, 32, 40, 0.12);
  --paper: #e6eaee;
  --paper-2: #d5dce6;
  --surface: rgba(255, 255, 255, 0.88);
  --steel: #1e3a4c;
  --steel-deep: #122833;
  --hi-vis: #e8a317;
  --hi-vis-deep: #c4860a;
  --hi-vis-soft: rgba(232, 163, 23, 0.16);
  --cyan: #2a8f9e;
  --cyan-soft: rgba(42, 143, 158, 0.14);
  --ok: #2f7d4f;
  --warn: #c45c1a;
  --shadow: 0 18px 48px rgba(18, 40, 51, 0.14);
  --radius: 12px;
  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --max: 1180px;
  --header-h: 76px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    linear-gradient(180deg, #dfe5ea 0%, var(--paper) 35%, #e8ecef 100%);
  background-attachment: fixed;
  line-height: 1.55;
  min-height: 100vh;
}

/* subtle blueprint grid behind page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(30, 58, 76, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 76, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}

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

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

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

.container {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  background: var(--steel);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
  border-radius: 8px;
}

.skip-link:focus {
  top: 1rem;
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(230, 234, 238, 0.9);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
  color: var(--steel);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--steel);
  color: #fff;
}

.brand-mark svg {
  color: #fff;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.brand-tag {
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
}

.nav-search {
  display: flex;
  flex: 1;
  max-width: 360px;
  margin-left: auto;
  position: relative;
}

.nav-search input {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.55rem 2.5rem 0.55rem 1rem;
  outline: none;
}

.nav-search input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-soft);
}

.nav-search-btn {
  position: absolute;
  right: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 0.35rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav > a,
.nav-flyout-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
}

.site-nav > a:hover,
.nav-flyout-toggle:hover {
  background: rgba(30, 58, 76, 0.06);
  color: var(--ink);
}

.nav-flyout {
  position: relative;
}

.nav-flyout-count-badge {
  display: inline-grid;
  place-items: center;
  min-width: 1.35rem;
  height: 1.35rem;
  padding: 0 0.3rem;
  border-radius: 999px;
  background: var(--hi-vis-soft);
  color: var(--hi-vis-deep);
  font-size: 0.72rem;
  font-weight: 700;
}

.nav-caret::after {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.6;
}

.nav-flyout-panel {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: min(760px, calc(100vw - 2rem));
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.75rem;
  z-index: 60;
}

.nav-flyout-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 0.75rem;
  min-height: 320px;
}

.nav-flyout-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  border-right: 1px solid var(--line);
  overflow: auto;
  max-height: 380px;
}

.nav-flyout-cat-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-flyout-cat.is-active .nav-flyout-cat-link,
.nav-flyout-cat-link:hover {
  background: var(--cyan-soft);
  color: var(--steel);
}

.nav-flyout-count {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.78rem;
}

.nav-flyout-arrow {
  opacity: 0.4;
}

.nav-flyout-arrow::after {
  content: "›";
}

.nav-flyout-tools-panel[hidden] {
  display: none;
}

.nav-flyout-tools-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.nav-flyout-tools-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.nav-flyout-tools-head a {
  color: var(--cyan);
  font-weight: 600;
  font-size: 0.88rem;
}

.nav-flyout-tools-desc {
  margin: 0.35rem 0 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.nav-flyout-tool-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.25rem 1rem;
}

.nav-flyout-tool-list a {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.nav-flyout-tool-list a:hover {
  color: var(--cyan);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  border: 0;
  background: transparent;
  padding: 0.5rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
}

.mobile-nav {
  border-top: 1px solid var(--line);
  padding: 1rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background: rgba(230, 234, 238, 0.98);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav > a,
.mobile-nav-child {
  padding: 0.65rem 0.25rem;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}

.mobile-nav-label {
  margin: 0.75rem 0 0.25rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 700;
}

.mobile-flyout summary {
  display: flex;
  justify-content: space-between;
  padding: 0.65rem 0.25rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 1px solid var(--line);
}

.nav-search-mobile {
  max-width: none;
  margin: 0 0 0.75rem;
}

.nav-search-mobile input {
  border-radius: 10px 0 0 10px;
}

.nav-search-mobile .btn {
  border-radius: 0 10px 10px 0;
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.2rem;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

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

.btn-primary {
  background: linear-gradient(180deg, var(--hi-vis) 0%, var(--hi-vis-deep) 100%);
  color: #1a1408;
  box-shadow: 0 8px 20px rgba(232, 163, 23, 0.35);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: inherit;
}

.hero .btn-ghost {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

.section .btn-ghost {
  border-color: var(--line);
  color: var(--steel);
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: min(92vh, 720px);
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--steel-deep);
  color: #f2f6f8;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 143, 158, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 143, 158, 0.12) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 70%);
  animation: gridDrift 28s linear infinite;
}

@keyframes gridDrift {
  from { background-position: 0 0; }
  to { background-position: 48px 48px; }
}

.hero-wash {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(18, 40, 51, 0.92) 0%, rgba(18, 40, 51, 0.55) 45%, rgba(18, 40, 51, 0.25) 100%),
    radial-gradient(600px 400px at 80% 30%, rgba(232, 163, 23, 0.18), transparent 60%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 5rem 0 4.5rem;
  max-width: 720px;
  margin-left: max(calc((100% - var(--max)) / 2), 1.25rem);
  animation: heroRise 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes heroRise {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-brand {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 0.95;
  color: var(--hi-vis);
  text-shadow: 0 0 40px rgba(232, 163, 23, 0.35);
}

.hero-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.1;
  max-width: 16ch;
}

.hero-lead {
  margin: 0 0 1.75rem;
  font-size: 1.1rem;
  color: rgba(242, 246, 248, 0.82);
  max-width: 42ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* —— Sections —— */
.section {
  padding: 4.5rem 0;
}

.section-heading {
  max-width: 620px;
  margin-bottom: 2rem;
}

.section-heading h2 {
  margin: 0.35rem 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.05;
  color: var(--steel);
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.section-cta {
  margin-top: 2rem;
  text-align: center;
}

/* —— Explorer —— */
.explorer-section {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.5), transparent);
}

.explorer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 1.5rem;
  width: 100%;
  max-width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: fadeUp 0.7s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.explorer-controls,
.explorer-results {
  padding: 1.5rem;
  min-width: 0;
}

.explorer-controls {
  background: linear-gradient(160deg, #f7f9fb, #eef2f5);
  border-right: 1px solid var(--line);
  border-radius: 16px 0 0 16px;
}

.explorer-results {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  border-radius: 0 16px 16px 0;
  padding-bottom: 1.85rem;
  overflow: hidden;
}

.explorer-pane-label {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.explorer-field {
  margin-bottom: 1.15rem;
}

.explorer-field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.explorer-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 0.35rem;
}

.explorer-field input[type="range"] {
  width: 100%;
  accent-color: var(--hi-vis);
}

.explorer-fineprint {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.explorer-viz {
  margin-bottom: 1rem;
  color: var(--steel);
}

.slab-diagram {
  width: 100%;
  max-height: 180px;
  transition: transform 0.25s ease;
}

.explorer-hero-label {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 700;
}

.explorer-hero-value {
  margin: 0.25rem 0;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 800;
  color: var(--steel);
  line-height: 1;
}

.explorer-hero-note {
  margin: 0 0 1rem;
  color: var(--muted);
}

.explorer-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.explorer-metric {
  padding: 0.75rem;
  border-radius: 10px;
  background: rgba(30, 58, 76, 0.05);
  border: 1px solid var(--line);
}

.explorer-metric span {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}

.explorer-metric strong {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--steel);
}

.explorer-cta {
  display: inline-flex;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  min-height: 3rem;
  padding: 0.85rem 1.25rem;
  white-space: normal;
  line-height: 1.25;
}

.explorer-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
}

.explorer-share {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: stretch;
  margin: 0;
}

.explorer-share .btn {
  flex: 1 1 10rem;
  min-height: 2.75rem;
  justify-content: center;
  box-sizing: border-box;
}

.explorer-share input {
  display: none;
}

.explorer-charts {
  margin-top: 0;
  display: grid;
  gap: 0.65rem;
}

/* —— Features —— */
.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.feature-grid li {
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100%;
  padding: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.65);
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.feature-card:hover,
.feature-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(42, 143, 158, 0.35);
  outline: none;
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 8px;
  background: var(--hi-vis-soft);
  color: var(--hi-vis-deep);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.feature-grid h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--steel);
}

.feature-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  flex: 1;
}

.feature-cta {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* —— Search —— */
.tool-search {
  display: flex;
  gap: 0.5rem;
  max-width: 640px;
  margin: 0 auto;
}

.tool-search input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  background: #fff;
}

.tool-search input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-soft);
}

/* —— Categories —— */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
}

.category-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.35rem;
}

.category-panel {
  --cat: var(--cyan);
  --cat-deep: #1f6f7c;
  --cat-soft: rgba(42, 143, 158, 0.22);
  --cat-wash: linear-gradient(160deg, #fff 0%, #fff 42%, var(--cat-soft) 100%);
  position: relative;
  overflow: hidden;
  background: var(--cat-wash);
  border: 1px solid color-mix(in srgb, var(--cat) 36%, var(--line));
  border-radius: var(--radius);
  padding: 1.2rem 1.25rem 1.3rem 1.4rem;
  box-shadow:
    0 10px 28px color-mix(in srgb, var(--cat) 14%, rgba(18, 40, 51, 0.08)),
    inset 0 1px 0 rgba(255, 255, 255, 0.75);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.category-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 7px;
  background: linear-gradient(180deg, var(--cat) 0%, var(--cat-deep) 100%);
  border-radius: var(--radius) 0 0 var(--radius);
  box-shadow: 2px 0 10px color-mix(in srgb, var(--cat) 40%, transparent);
}

.category-panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--cat), color-mix(in srgb, var(--cat) 35%, #fff) 70%, transparent);
  opacity: 1;
}

.category-panel:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--cat) 48%, var(--line));
  box-shadow:
    0 16px 36px rgba(18, 40, 51, 0.12),
    0 0 0 3px var(--cat-soft),
    inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.category-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.9rem;
  padding-bottom: 0.85rem;
  border-bottom: 2px solid color-mix(in srgb, var(--cat) 22%, transparent);
}

.category-panel-head h3 {
  margin: 0 0 0.3rem;
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--cat-deep);
}

.category-panel-head h3 a {
  color: inherit;
}

.category-panel-head h3 a:hover {
  color: var(--cat);
}

.category-panel-desc {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 42ch;
}

.category-panel-all {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: #fff;
  white-space: nowrap;
  padding: 0.42rem 0.7rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--cat) 0%, var(--cat-deep) 100%);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--cat) 35%, transparent);
  transition: transform 0.15s ease, filter 0.15s ease;
}

.category-panel-all:hover {
  text-decoration: none;
  filter: brightness(1.06);
  transform: translateY(-1px);
}

.category-tool-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
}

.category-tool-list a {
  display: block;
  padding: 0.42rem 0.55rem;
  border-radius: 8px;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.category-tool-list a:hover,
.category-tool-list a:focus-visible {
  background: color-mix(in srgb, var(--cat) 16%, #fff);
  color: var(--cat-deep);
  border-color: color-mix(in srgb, var(--cat) 28%, transparent);
  outline: none;
}

@media (min-width: 720px) {
  .category-tool-list {
    grid-template-columns: 1fr 1fr;
  }
}

/* Per-trade accent colors */
.category-panel.cat-concrete {
  --cat: #3d7ea6;
  --cat-deep: #1f5270;
  --cat-soft: rgba(61, 126, 166, 0.24);
}

.category-panel.cat-masonry {
  --cat: #c0523a;
  --cat-deep: #8a3224;
  --cat-soft: rgba(192, 82, 58, 0.22);
}

.category-panel.cat-framing {
  --cat: #b07a2e;
  --cat-deep: #7a4f16;
  --cat-soft: rgba(176, 122, 46, 0.24);
}

.category-panel.cat-roofing {
  --cat: #4a6fa5;
  --cat-deep: #2b4570;
  --cat-soft: rgba(74, 111, 165, 0.22);
}

.category-panel.cat-flooring {
  --cat: #9a6b3f;
  --cat-deep: #684428;
  --cat-soft: rgba(154, 107, 63, 0.22);
}

.category-panel.cat-paint {
  --cat: #2f9e8f;
  --cat-deep: #1a6f64;
  --cat-soft: rgba(47, 158, 143, 0.24);
}

.category-panel.cat-excavation {
  --cat: #8b6a3f;
  --cat-deep: #5c4324;
  --cat-soft: rgba(139, 106, 63, 0.24);
}

.category-panel.cat-rebar {
  --cat: #6b7c8c;
  --cat-deep: #3d4a56;
  --cat-soft: rgba(107, 124, 140, 0.26);
}

.category-panel.cat-drywall {
  --cat: #6a8fa8;
  --cat-deep: #3d5c70;
  --cat-soft: rgba(106, 143, 168, 0.24);
}

.category-panel.cat-stairs {
  --cat: #d08916;
  --cat-deep: #9a5f0a;
  --cat-soft: rgba(208, 137, 22, 0.24);
}

.category-panel.cat-paving {
  --cat: #5a6674;
  --cat-deep: #343c46;
  --cat-soft: rgba(90, 102, 116, 0.24);
}

.category-panel.cat-cost {
  --cat: #2f8a55;
  --cat-deep: #1b5c36;
  --cat-soft: rgba(47, 138, 85, 0.22);
}

.category-panel.cat-plumbing {
  --cat: #c06a35;
  --cat-deep: #8a441c;
  --cat-soft: rgba(192, 106, 53, 0.24);
}

.category-panel.cat-electrical {
  --cat: #c9a01a;
  --cat-deep: #8a6c0c;
  --cat-soft: rgba(201, 160, 26, 0.26);
}

.category-panel.cat-geometry {
  --cat: #2f7f9e;
  --cat-deep: #1a5570;
  --cat-soft: rgba(47, 127, 158, 0.24);
}

.category-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.85rem;
  align-items: center;
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.category-card:hover {
  transform: translateY(-2px);
  border-color: rgba(42, 143, 158, 0.35);
  box-shadow: var(--shadow);
}

.category-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 8px;
  background: var(--steel);
  position: relative;
}

.category-icon::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 2px solid var(--hi-vis);
  border-radius: 3px;
}

.category-name {
  display: block;
  font-weight: 700;
  color: var(--steel);
}

.category-desc {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.category-count {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--cyan);
}

/* —— Tool cards —— */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.tool-grid-dense {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.15rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  min-height: 140px;
}

.tool-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.tool-card-cat {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
}

.tool-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--steel);
  line-height: 1.15;
}

.tool-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  flex: 1;
}

/* —— About —— */
.about-section {
  background: var(--steel-deep);
  color: #eef3f6;
}

.about-section .eyebrow {
  color: var(--hi-vis);
}

.about-section h2 {
  color: #fff;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-size: clamp(1.8rem, 3vw, 2.3rem);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2rem;
  align-items: start;
}

.about-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.about-points li {
  padding: 0.9rem 1rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 600;
}

.about-privacy {
  margin-top: 1.5rem;
  padding: 1.15rem 1.2rem;
  border-radius: 12px;
  border: 1px solid rgba(232, 163, 23, 0.35);
  background: rgba(232, 163, 23, 0.08);
}

.about-privacy h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--hi-vis);
}

.about-privacy p {
  margin: 0 0 0.65rem;
  color: rgba(238, 243, 246, 0.88);
  max-width: 48ch;
}

.about-privacy p:last-child {
  margin-bottom: 0;
}

.about-privacy-link {
  color: var(--hi-vis);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.about-privacy-link:hover {
  color: #fff;
}

/* —— Footer —— */
.site-footer {
  background: #0f1c24;
  color: rgba(238, 243, 246, 0.85);
  padding: 3.5rem 0 1.5rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-brand .brand {
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-brand .brand-mark {
  background: var(--hi-vis);
  color: var(--steel-deep);
}

.footer-disclaimer {
  font-size: 0.85rem;
  opacity: 0.7;
}

.footer-search {
  display: flex;
  gap: 0.4rem;
  margin-top: 1rem;
}

.footer-search input {
  flex: 1;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  padding: 0.6rem 0.85rem;
}

.footer-heading {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--hi-vis);
}

.footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr 1.6fr;
  gap: 1.5rem;
}

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

.footer-menu a {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.3rem 0;
  font-size: 0.92rem;
  opacity: 0.85;
}

.footer-menu a:hover {
  opacity: 1;
  color: var(--hi-vis);
}

.footer-category-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.15rem 1rem;
}

.footer-cat-count {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.8rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.88rem;
}

.footer-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bar a:hover {
  color: var(--hi-vis);
}

/* —— Pages / tools —— */
.page-header {
  padding: 2.5rem 0 1.5rem;
}

.page-header h1 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--steel);
}

.search-meta {
  color: var(--muted);
  margin: 0.75rem 0 1.25rem;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.88rem;
  color: var(--muted);
  margin: 1.5rem 0 1rem;
}

.breadcrumbs a:hover {
  color: var(--cyan);
}

.tool-header {
  margin-bottom: 1.5rem;
}

.tool-eyebrow {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
}

.tool-header h1 {
  margin: 0.25rem 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--steel);
  line-height: 1.05;
}

.tool-lead {
  margin: 0;
  color: var(--muted);
  max-width: 60ch;
  font-size: 1.05rem;
}

.tool-workspace {
  margin: 1.5rem 0;
}

.tool-loading {
  padding: 2rem;
  text-align: center;
  color: var(--muted);
}

.tool-shell {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: 1.25rem;
  align-items: start;
}

.pane {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(18, 40, 51, 0.07);
  overflow: hidden;
}

.pane-results {
  position: static;
  top: auto;
  z-index: auto;
}

.pane-head {
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--line);
  background: #f4f7f9;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pane-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--steel);
}

.pane-body {
  padding: 1.15rem 1.15rem 1.25rem;
}

.unit-toggle {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: #fff;
}

.unit-toggle button {
  border: 0;
  background: transparent;
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--muted);
}

.unit-toggle button.is-active {
  background: var(--steel);
  color: #fff;
}

.tool-field {
  margin-bottom: 1.05rem;
}

.field-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
}

.field-top label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.field-value {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--cyan);
  font-size: 1.05rem;
}

.tool-field input[type="number"],
.tool-field input[type="text"],
.tool-field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  background: #fff;
  font-size: 1.05rem;
  min-height: 2.75rem;
}

.tool-field input[type="number"]:focus,
.tool-field input[type="text"]:focus,
.tool-field select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-soft);
}

.field-slider {
  margin-top: 0.35rem;
}

.field-slider summary {
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  list-style: none;
  user-select: none;
}

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

.field-slider summary::before {
  content: "+ ";
  color: var(--cyan);
  font-weight: 800;
}

.field-slider[open] summary::before {
  content: "– ";
}

.field-slider input[type="range"] {
  width: 100%;
  accent-color: var(--hi-vis);
  margin-top: 0.45rem;
  min-height: 1.5rem;
}

.tool-field input.is-invalid {
  border-color: var(--warn);
}

.field-hint,
.field-error {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.4;
}

.field-error {
  color: var(--warn);
}

.result-disclaimer {
  padding: 0 1.15rem 1rem;
  margin: 0;
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.tool-actions > .btn {
  min-height: 2.6rem;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
}

.tool-more {
  position: relative;
}

.tool-more-summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  min-height: 2.6rem;
}

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

.tool-more-menu {
  position: absolute;
  left: 0;
  bottom: calc(100% + 0.4rem);
  z-index: 20;
  display: grid;
  gap: 0.25rem;
  min-width: 11.5rem;
  padding: 0.45rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.tool-more-menu .btn {
  justify-content: flex-start;
  width: 100%;
  border: 0;
  background: transparent;
  text-align: left;
  font-size: 0.88rem;
  min-height: 2.35rem;
}

.tool-more-menu .btn:hover {
  background: rgba(30, 58, 76, 0.06);
}

.btn-secondary {
  background: var(--steel);
  color: #fff;
}

.btn-quiet {
  background: #fff;
  border-color: var(--line);
  color: var(--ink-soft);
}

.result-hero {
  padding: 1.35rem 1.15rem 0.9rem;
  background: linear-gradient(180deg, rgba(42, 143, 158, 0.08), transparent 70%);
}

.result-hero-label {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 700;
}

.result-hero-value {
  margin: 0.25rem 0;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--steel);
  line-height: 1;
}

.result-hero-note {
  margin: 0.15rem 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.35;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.result-tabs {
  display: flex;
  gap: 0.15rem;
  padding: 0 0.85rem;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.result-tab {
  border: 0;
  background: transparent;
  padding: 0.75rem 0.85rem;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.result-tab.is-active {
  color: var(--steel);
  border-bottom-color: var(--hi-vis);
}

.result-body {
  padding: 1.15rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.metric {
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  background: rgba(30, 58, 76, 0.05);
  border: 1px solid var(--line);
}

.metric-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--steel);
}

.bar-list {
  display: grid;
  gap: 0.55rem;
}

.bar-row {
  display: grid;
  grid-template-columns: 110px 1fr 70px;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.88rem;
}

.bar-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(30, 58, 76, 0.08);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--hi-vis));
  transition: width 0.35s ease;
}

.diagram-wrap {
  display: grid;
  place-items: center;
  padding: 0.5rem;
  background: #f3f6f8;
  border-radius: 10px;
  border: 1px solid var(--line);
  margin-bottom: 1rem;
}

.diagram-wrap svg {
  width: 100%;
  max-height: 200px;
  color: var(--steel);
}

.decision-card {
  padding: 0.9rem 1rem;
  border-radius: 10px;
  margin-bottom: 0.85rem;
  border: 1px solid var(--line);
  background: var(--cyan-soft);
}

.decision-card.is-ok {
  background: rgba(47, 125, 79, 0.12);
}

.decision-card.is-warn {
  background: rgba(196, 92, 26, 0.12);
}

.assumptions-panel,
.order-sheet-wrap {
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #f7f9fb;
}

.assumptions-list {
  margin: 0.4rem 0 0;
  padding-left: 1.15rem;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.assumptions-list li {
  margin-bottom: 0.35rem;
}

.order-sheet {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 0.5rem 0;
}

.order-sheet th,
.order-sheet td {
  text-align: left;
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.order-sheet th {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.tool-methodology ul {
  margin: 0.75rem 0;
  padding-left: 1.25rem;
  color: var(--ink-soft);
}

.tool-methodology li {
  margin-bottom: 0.4rem;
}

.tool-disclaimer,
.tool-intro,
.tool-methodology,
.tool-faq,
.related-tools {
  margin: 2rem 0;
}

.tool-disclaimer {
  font-size: 0.88rem;
  color: var(--muted);
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--hi-vis);
  background: rgba(255, 255, 255, 0.55);
}

.tool-intro h2,
.tool-methodology h2,
.tool-faq h2,
.related-tools h2 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--steel);
  font-size: 1.5rem;
}

.tool-faq details {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.5rem;
  padding: 0.75rem 1rem;
}

.tool-faq summary {
  font-weight: 700;
  cursor: pointer;
  color: var(--steel);
}

.tool-faq p {
  margin: 0.65rem 0 0;
  color: var(--muted);
}

.entry-content {
  padding: 2rem 0 3rem;
  max-width: 72ch;
}

.entry-content h1,
.entry-content h2 {
  font-family: var(--font-display);
  text-transform: uppercase;
  color: var(--steel);
}

/* Stack explorer earlier so charts + CTA keep full width */
@media (max-width: 1080px) {
  .explorer {
    grid-template-columns: 1fr;
  }

  .explorer-controls {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 16px 16px 0 0;
  }

  .explorer-results {
    border-radius: 0 0 16px 16px;
  }
}

/* —— Responsive —— */
@media (max-width: 980px) {
  .nav-search,
  .site-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .explorer,
  .feature-grid,
  .category-grid,
  .category-panels,
  .tool-grid,
  .about-grid,
  .footer-inner,
  .footer-cols,
  .nav-flyout-layout {
    grid-template-columns: 1fr;
  }

  .explorer-controls {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 16px 16px 0 0;
  }

  .explorer-results {
    border-radius: 0 0 16px 16px;
    padding: 1.25rem 1.15rem 1.5rem;
  }

  .explorer-actions {
    gap: 0.9rem;
  }

  .explorer-share {
    flex-direction: column;
    gap: 0.75rem;
  }

  .explorer-share .btn,
  .explorer-cta {
    flex: 1 1 auto;
    width: 100%;
  }

  .tool-shell {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    align-items: stretch;
  }

  .pane-inputs,
  .pane-results {
    position: static !important;
    top: auto !important;
    bottom: auto !important;
    inset: auto !important;
    width: 100%;
    max-width: 100%;
    margin: 0;
    z-index: auto !important;
    box-shadow: 0 8px 24px rgba(18, 40, 51, 0.07);
  }

  .pane-results .result-tabs {
    display: flex;
  }

  .pane-results .result-body,
  .pane-results .share-bar,
  .pane-results .result-disclaimer {
    display: block;
  }

  .hero-inner {
    margin-left: auto;
    margin-right: auto;
    padding-bottom: 2.5rem;
  }

  .nav-flyout-tool-list {
    grid-template-columns: 1fr;
  }

  .tool-more-menu {
    left: auto;
    right: 0;
  }
}

@media (max-width: 640px) {
  .feature-grid,
  .category-grid,
  .tool-grid,
  .footer-category-grid,
  .metric-grid,
  .explorer-metrics {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
  }

  .hero-brand {
    display: none;
  }

  .hero-title {
    font-size: clamp(2rem, 9vw, 2.8rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .bar-row {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .tool-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
  }

  .tool-actions > .btn,
  .tool-more,
  .tool-more-summary {
    width: 100%;
    justify-content: center;
  }

  .share-bar {
    margin-top: 0.85rem;
  }

  .share-bar-inner {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .tool-page .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .tool-shell {
    gap: 1rem;
  }

  .pane-head {
    padding: 0.75rem 1rem;
    gap: 0.5rem;
  }

  .pane-body {
    padding: 1rem;
  }

  .tool-field {
    margin-bottom: 0.85rem;
  }

  .tool-field input[type="number"],
  .tool-field input[type="text"],
  .tool-field select {
    min-height: 2.6rem;
    padding: 0.65rem 0.75rem;
    font-size: 1rem;
  }

  .result-hero {
    padding: 1rem 1rem 0.75rem;
  }

  .result-hero-value {
    font-size: clamp(2rem, 9vw, 2.6rem);
  }

  .result-hero-note {
    font-size: 0.88rem;
  }

  .field-slider summary {
    padding: 0.35rem 0;
    min-height: 2rem;
    display: inline-flex;
    align-items: center;
  }

  .tool-actions .btn {
    min-height: 2.75rem;
  }

  .pane-title {
    font-size: 0.95rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

.tool-card-link {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  height: 100%;
  color: inherit;
}

.tool-howto ol {
  padding-left: 1.25rem;
  color: var(--ink-soft);
}

.keyword-cloud {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.keyword-cloud li {
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(30, 58, 76, 0.06);
  border: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}

.content-block {
  padding: 2rem 0 3rem;
  max-width: 72ch;
}

.content-block h1 {
  font-family: var(--font-display);
  text-transform: uppercase;
  color: var(--steel);
}

@media print {
  .site-header,
  .site-footer,
  .tool-actions,
  .unit-toggle,
  .nav-toggle {
    display: none !important;
  }

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

  .pane-results {
    position: static;
    box-shadow: none;
  }
}


.currency-picker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: 0.35rem;
  flex-shrink: 0;
}

.chart-frame {
  width: 100%;
}

.chart-card {
  margin-top: 0.75rem;
  padding: 0.85rem;
  border-radius: 10px;
  background: rgba(30, 58, 76, 0.04);
  border: 1px solid rgba(30, 58, 76, 0.08);
}

.chart-svg .chart-seg {
  transform-origin: center;
}

.chart-donut .chart-seg {
  stroke-linecap: butt;
  transition: stroke-dashoffset 0.55s ease, opacity 0.2s ease;
}

.chart-bars .chart-seg,
.chart-hbars .chart-seg {
  transition: width 0.45s ease, height 0.45s ease, opacity 0.2s ease;
}

.chart-gauge .chart-seg {
  transition: stroke-dashoffset 0.6s ease;
}

.chart-card-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel);
}

.chart-card-sub {
  margin: 0 0 0.65rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.chart-legend {
  list-style: none;
  margin: 0.65rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
}

.chart-legend li {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.chart-swatch {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 2px;
  flex-shrink: 0;
}

.chart-seg {
  transition: opacity 0.2s ease;
}

.diagram-wrap.chart-export-root {
  margin-bottom: 0.85rem;
}

.share-bar {
  padding: 0 1.15rem 0.95rem;
}

.share-bar-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: end;
  padding: 0.75rem;
  border-radius: 10px;
  background: #f4f8f9;
  border: 1px solid rgba(42, 143, 158, 0.18);
}

.share-bar-label {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
}

.share-url-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  background: #fff;
  font-size: 0.8rem;
  color: var(--ink-soft);
  min-height: 2.5rem;
}

.bth-toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%) translateY(120%);
  z-index: 2000;
  padding: 0.75rem 1.1rem;
  border-radius: 999px;
  background: var(--steel);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.bth-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media print {
  .share-bar,
  .bth-toast,
  .tool-actions,
  .unit-toggle,
  .currency-picker,
  .tool-more {
    display: none !important;
  }
}


.currency-picker-chip {
  display: inline-grid;
  place-items: center;
  min-width: 2.4rem;
  padding: 0.25rem 0.4rem;
  border-radius: 6px;
  background: var(--hi-vis-soft);
  color: var(--hi-vis-deep);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.currency-picker select {
  max-width: 11.5rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 0.45rem 0.55rem;
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.currency-picker select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-soft);
}

.currency-picker-mobile {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.35rem;
  margin: 0.75rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
}

.currency-picker-mobile span {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.currency-picker-mobile select {
  max-width: none;
  width: 100%;
}

@media (max-width: 980px) {
  .header-inner > .currency-picker {
    display: none;
  }
}


.category-card {
  cursor: pointer;
}

.category-card:focus-visible,
.tool-card-link:focus-visible {
  outline: 3px solid var(--hi-vis);
  outline-offset: 2px;
}