/* Calculate — shared styles
   Mobile-first, light default, dark via [data-theme="dark"] */

:root {
  --font-display: "Sora", "Segoe UI", sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --bg: #f3f0e8;
  --bg-2: #e8e3d6;
  --surface: #fffcf7;
  --surface-2: #f7f3ea;
  --ink: #1c2118;
  --muted: #5e6758;
  --line: #ddd6c8;
  --line-strong: #c9c0ae;
  --brand: #1a6b4a;
  --brand-ink: #ffffff;
  --brand-soft: #dceee4;
  --brand-2: #0e4d36;
  --accent: #c05621;
  --accent-soft: #f8e6d9;
  --ok: #1a6b4a;
  --warn: #b45309;
  --danger: #b42318;
  --info: #1d4e89;
  --ad-bg: #ece7dc;
  --focus: #1a6b4a;
  --shadow: 0 12px 32px rgba(28, 33, 24, 0.07);
  --shadow-sm: 0 2px 8px rgba(28, 33, 24, 0.05);
  --radius: 14px;
  --radius-sm: 10px;
  --wrap: 1120px;
  --header-h: 68px;
  --tap: 44px;
}

[data-theme="dark"] {
  --bg: #10140f;
  --bg-2: #171c16;
  --surface: #1a1f18;
  --surface-2: #22281f;
  --ink: #eee9df;
  --muted: #a3aa9b;
  --line: #2e352c;
  --line-strong: #3d4639;
  --brand: #5dca94;
  --brand-ink: #102016;
  --brand-soft: #1e3328;
  --brand-2: #8ee0b2;
  --accent: #e8955a;
  --accent-soft: #3a2a20;
  --ok: #5dca94;
  --warn: #f0b45a;
  --danger: #f0a4a0;
  --info: #8bb4e0;
  --ad-bg: #22281f;
  --focus: #5dca94;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--brand);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--brand-2);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  font-weight: 600;
}

h1 {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.wrap {
  width: min(100% - 1.5rem, var(--wrap));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -40px;
  z-index: 1000;
  background: var(--brand);
  color: var(--brand-ink);
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
}

.skip-link:focus {
  top: 0.75rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--brand-2);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.logo svg {
  width: 32px;
  height: 32px;
  color: #1a6b4a;
}

.related li {
  margin: 0;
}

.logo:hover {
  color: var(--brand);
}

.nav {
  display: none;
  align-items: center;
  gap: 0.15rem;
  margin-left: auto;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 0.45rem 0.7rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}

.nav a:hover,
.nav a[aria-current="page"] {
  background: var(--brand-soft);
  color: var(--brand-2);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
}

.icon-btn {
  width: var(--tap);
  height: var(--tap);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 10px;
  display: grid;
  place-items: center;
  cursor: pointer;
}

.icon-btn:hover {
  border-color: var(--line-strong);
  background: var(--surface-2);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.theme-toggle .icon-sun,
[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

.nav-toggle {
  display: grid;
}

@media (min-width: 880px) {
  .nav {
    display: flex;
  }

  .header-actions {
    margin-left: 0.5rem;
  }

  .nav-toggle {
    display: none;
  }
}

.nav.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  left: 0;
  right: 0;
  top: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 0.75rem 1rem 1rem;
  align-items: stretch;
  box-shadow: var(--shadow);
}

.nav.is-open a {
  padding: 0.75rem 0.85rem;
}

/* Main */

main {
  flex: 1;
  padding: 1.75rem 0 3.5rem;
}

.hero {
  display: grid;
  gap: 1.25rem;
  padding: 1.25rem 0 2rem;
}

.kicker {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand);
  margin: 0 0 0.6rem;
}

.lede {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 42rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.35rem 0.85rem;
  box-shadow: var(--shadow-sm);
  max-width: 32rem;
}

.search-box svg {
  width: 18px;
  height: 18px;
  color: var(--muted);
  flex-shrink: 0;
}

.search-box input {
  border: 0;
  background: transparent;
  width: 100%;
  font: inherit;
  color: inherit;
  padding: 0.7rem 0;
}

.search-box input:focus {
  outline: none;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
  padding: 0;
  margin: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.95rem;
}

.trust-row li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.trust-row svg {
  width: 16px;
  height: 16px;
  color: var(--brand);
}

/* Cards / tools */

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 2.25rem 0 1rem;
}

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

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.2rem 1.2rem;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  min-height: 9.5rem;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--brand) 40%, var(--line));
  box-shadow: var(--shadow);
  color: inherit;
}

.tool-card .card-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  color: var(--brand-2);
  margin-bottom: 0.25rem;
}

.tool-card .card-icon svg {
  width: 20px;
  height: 20px;
}

.tool-card h3 {
  margin: 0;
  font-size: 1.08rem;
}

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

.pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  background: var(--bg-2);
  color: var(--muted);
}

.pill-finance {
  background: var(--brand-soft);
  color: var(--brand-2);
}
.pill-health {
  background: #dce8f3;
  color: #1d4e89;
}
.pill-home {
  background: var(--accent-soft);
  color: var(--accent);
}
.pill-convert {
  background: #e7e0f4;
  color: #5b3d91;
}
.pill-math {
  background: #f6e7c2;
  color: #8a5a10;
}
.pill-sell {
  background: #f3dce8;
  color: #8a2458;
}

[data-theme="dark"] .pill-health {
  background: #1c2a38;
  color: #8bb4e0;
}
[data-theme="dark"] .pill-convert {
  background: #2a2438;
  color: #c4b0ea;
}
[data-theme="dark"] .pill-math {
  background: #332a18;
  color: #e0c07a;
}
[data-theme="dark"] .pill-sell {
  background: #3a2430;
  color: #e8a0c0;
}

.tool-card.is-hidden {
  display: none;
}

.search-empty {
  display: none;
  background: var(--surface);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 1.25rem;
  color: var(--muted);
}

.search-empty.is-visible {
  display: block;
}

/* Page chrome */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--brand);
}

.page-header {
  margin-bottom: 1.35rem;
  max-width: 46rem;
}

.prose {
  max-width: 44rem;
}

.prose h2 {
  margin-top: 1.75rem;
}

.prose ul,
.prose ol {
  padding-left: 1.2rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

/* Calculator layout */

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

@media (min-width: 900px) {
  .calc-layout {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .results-panel {
    position: sticky;
    top: calc(var(--header-h) + 1rem);
  }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem 1.15rem 1.25rem;
  box-shadow: var(--shadow-sm);
}

.panel h2 {
  font-size: 1.05rem;
  margin-bottom: 0.9rem;
}

.form-grid {
  display: grid;
  gap: 0.85rem;
}

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

@media (min-width: 560px) {
  .form-grid.two {
    grid-template-columns: 1fr 1fr;
  }

  .span-2 {
    grid-column: 1 / -1;
  }
}

label.field {
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
  font-weight: 600;
  font-size: 0.92rem;
}

.hint {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.85rem;
}

.field input,
.field select,
.field textarea {
  font: inherit;
  color: inherit;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  min-height: var(--tap);
  padding: 0.45rem 0.75rem;
  width: 100%;
}

.field textarea {
  min-height: 8rem;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus,
.icon-btn:focus-visible,
.btn:focus-visible,
.search-box:focus-within {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.input-affix {
  display: flex;
  align-items: stretch;
}

.input-affix input {
  border-radius: 10px 0 0 10px;
}

.input-affix .affix {
  display: grid;
  place-items: center;
  padding: 0 0.75rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-left: 0;
  border-radius: 0 10px 10px 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  white-space: nowrap;
}

.input-affix.prefix input {
  border-radius: 0 10px 10px 0;
}

.input-affix.prefix .affix {
  border-radius: 10px 0 0 10px;
  border-left: 1px solid var(--line);
  border-right: 0;
}

.seg {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.seg label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  min-height: var(--tap);
}

.seg input {
  accent-color: var(--brand);
}

.field-error {
  color: var(--danger);
  font-weight: 500;
  font-size: 0.85rem;
  min-height: 1.1em;
}

.field.is-invalid input,
.field.is-invalid select {
  border-color: var(--danger);
}

.form-error {
  display: none;
  background: color-mix(in srgb, var(--danger) 12%, var(--surface));
  color: var(--danger);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  font-size: 0.92rem;
}

.form-error.is-visible {
  display: block;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.35rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: var(--tap);
  padding: 0.5rem 1rem;
  border-radius: 10px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--brand);
  color: var(--brand-ink);
}

.btn-primary:hover {
  background: var(--brand-2);
  color: var(--brand-ink);
}

.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line-strong);
}

.btn-secondary:hover {
  background: var(--surface-2);
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--line);
}

details.advanced {
  border-top: 1px solid var(--line);
  margin-top: 0.5rem;
  padding-top: 0.7rem;
}

details.advanced summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--brand-2);
}

details.advanced .form-grid {
  margin-top: 0.85rem;
}

/* Results */

.results-panel {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
}

.result-hero {
  margin-bottom: 1rem;
}

.result-hero .label {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.result-hero .value {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  margin: 0.15rem 0;
}

.result-hero .sub {
  color: var(--muted);
  margin: 0;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
}

.stat .label {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 0.15rem;
}

.stat .value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.badge-ok {
  background: var(--brand-soft);
  color: var(--brand-2);
}
.badge-warn {
  background: #f6e7c2;
  color: #8a5a10;
}
.badge-danger {
  background: #f8d7d4;
  color: #8a1c14;
}
.badge-info {
  background: #dce8f3;
  color: #1d4e89;
}

[data-theme="dark"] .badge-warn {
  background: #332a18;
  color: #e0c07a;
}
[data-theme="dark"] .badge-danger {
  background: #3a2020;
  color: #f0a4a0;
}
[data-theme="dark"] .badge-info {
  background: #1c2a38;
  color: #8bb4e0;
}

.table-wrap {
  overflow-x: auto;
  margin: 0.75rem 0 0.25rem;
  border: 1px solid var(--line);
  border-radius: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

th,
td {
  text-align: left;
  padding: 0.5rem 0.7rem;
  border-bottom: 1px solid var(--line);
}

th {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--bg);
}

tr:last-child td {
  border-bottom: 0;
}

td.num,
th.num {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

.table-wrap .badge {
  margin-left: 0.35rem;
  vertical-align: middle;
}

.table-wrap--rank table {
  border-collapse: separate;
  border-spacing: 0;
}

.table-wrap--rank tbody td {
  border-bottom-color: color-mix(in srgb, var(--line) 70%, transparent);
}

.table-wrap--rank .rank-best td {
  background: color-mix(in srgb, var(--ok) 24%, var(--surface));
  font-weight: 700;
  box-shadow: inset 5px 0 0 var(--ok);
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
}

.table-wrap--rank .rank-best td:first-child {
  font-size: 1.02rem;
}

.table-wrap--rank .rank-good td {
  background: color-mix(in srgb, var(--ok) 12%, var(--surface));
  box-shadow: inset 5px 0 0 color-mix(in srgb, var(--ok) 55%, var(--line));
}

.table-wrap--rank .rank-mid td {
  background: color-mix(in srgb, var(--warn) 14%, var(--surface));
  box-shadow: inset 5px 0 0 color-mix(in srgb, var(--warn) 70%, var(--line));
}

.table-wrap--rank .rank-poor td {
  background: color-mix(in srgb, var(--accent) 16%, var(--surface));
  box-shadow: inset 5px 0 0 color-mix(in srgb, var(--accent) 75%, var(--line));
}

.table-wrap--rank .rank-worst td {
  background: color-mix(in srgb, var(--danger) 18%, var(--surface));
  box-shadow: inset 5px 0 0 var(--danger);
}

.rank-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
  margin: 0.85rem 0 0.35rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.rank-swatch {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.rank-swatch::before {
  content: "";
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 4px;
  flex-shrink: 0;
}

.rank-swatch--best::before {
  background: color-mix(in srgb, var(--ok) 55%, var(--surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ok) 50%, transparent);
}

.rank-swatch--mid::before {
  background: color-mix(in srgb, var(--warn) 45%, var(--surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--warn) 45%, transparent);
}

.rank-swatch--worst::before {
  background: color-mix(in srgb, var(--danger) 45%, var(--surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--danger) 45%, transparent);
}

.callout {
  border-left: 3px solid var(--brand);
  background: var(--brand-soft);
  padding: 0.8rem 0.95rem;
  border-radius: 0 10px 10px 0;
  margin: 0.75rem 0;
  color: var(--ink);
}

.callout.warn {
  border-left-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 12%, var(--surface));
}

.disclaimer {
  font-size: 0.9rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin-top: 1.25rem;
}

.related {
  margin-top: 1.75rem;
}

.related ul {
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.related a {
  display: inline-flex;
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  color: var(--ink);
  font-weight: 600;
}

.related a:hover {
  border-color: var(--brand);
  color: var(--brand-2);
}

.how {
  margin-top: 1.5rem;
}

.how details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
}

.how summary {
  cursor: pointer;
  font-weight: 700;
  font-family: var(--font-display);
}

.formula,
.how code,
.prose code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  background: var(--bg);
  border-radius: 8px;
  padding: 0.15rem 0.4rem;
}

.formula {
  display: block;
  padding: 0.7rem 0.8rem;
  overflow-x: auto;
}

.how p {
  margin-top: 0.75rem;
  color: var(--muted);
}

/* Ads */

.ad-slot {
  margin: 1.1rem 0;
  background: var(--ad-bg);
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  padding: 0.7rem;
  text-align: center;
}

.ad-label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.ad-frame {
  margin: 0 auto;
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  color: var(--muted);
  display: grid;
  place-items: center;
  font-size: 0.88rem;
  border-radius: 8px;
}

.ad-frame--leaderboard {
  min-height: 90px;
  max-width: 728px;
}

.ad-frame--rectangle {
  min-height: 250px;
  max-width: 300px;
}

.ad-frame--inline {
  min-height: 100px;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 2rem 0 1.4rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

.site-footer h2 {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.site-footer li {
  margin-bottom: 0.35rem;
}

.site-footer a {
  color: var(--ink);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--brand);
}

.copyright {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

/* Contact */

.contact-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 800px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  background: var(--ink);
  color: var(--bg);
  padding: 0.7rem 0.95rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 80;
}

.toast.is-visible {
  opacity: 1;
  transform: none;
}

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

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

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

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

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .ad-slot,
  .theme-toggle,
  .nav-toggle,
  .hero-actions,
  .btn {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .panel {
    box-shadow: none;
    break-inside: avoid;
  }
}