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

html,
body,
h1, h2, h3, h4,
p, figure, blockquote, dl, dd {
  margin: 0;
}

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

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

/* ---------- Design tokens ---------- */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #fafafa;
  --color-surface: #ffffff;
  --color-text: #111827;
  --color-text-muted: #4b5563;
  --color-text-subtle: #8a8a8a;
  --color-border: #e5e7eb;
  --color-border-strong: #d4d4d4;
  --color-accent: #5b5fef;
  --color-accent-dark: #4338ca;
  --color-accent-contrast: #ffffff;
  --color-accent-tint: #eeeefd;

  --footer-bg: #0a0a0f;
  --footer-text: #a8a8b3;
  --footer-heading: #ffffff;
  --footer-muted: #6e6e7a;
  --footer-link: #9da0f6;
  --footer-border: rgba(255, 255, 255, 0.08);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-hero: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  --container-width: 960px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.25rem;

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- Base ---------- */
body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 28px;
  color: var(--color-text-muted);
  background-color: var(--color-bg);
}

h1, h2, h3, h4 {
  color: var(--color-text);
  line-height: 1.2;
}

.hero-title {
  max-width: 620px;
  margin-inline: auto;
  text-align: center;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

h2 {
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.308;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.005em;
}

h4 {
  font-size: 1.0625rem;
  font-weight: 600;
}

strong, b {
  color: var(--color-text);
  font-weight: 600;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

/* ---------- Header ---------- */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  padding-block: 0.875rem;
}

.site-title {
  display: inline-flex;
  align-items: center;
  gap: 0.5625rem;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  text-decoration: none;
}

.site-title .brand-accent {
  color: var(--color-accent);
}

.site-logo {
  display: block;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.site-title-text {
  white-space: nowrap;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  position: relative;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-size: 1.125rem;
  line-height: 1;
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: var(--color-text-subtle);
}

.site-nav {
  display: none;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  flex-direction: column;
  gap: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.375rem;
  z-index: 20;
}

.site-nav.is-open {
  display: flex;
}

.site-nav-link {
  padding: 0.5rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-nav-link:hover {
  color: var(--color-text);
  background-color: var(--color-bg-alt);
}

.site-nav-link.is-active {
  color: var(--color-accent);
  font-weight: 600;
}

/* ---------- Main ---------- */
main {
  flex: 1;
  padding-block: var(--space-4);
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: var(--space-4);
  background-color: var(--footer-bg);
}

.footer-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  padding-block: var(--space-4);
}

.footer-brand-title {
  display: inline-block;
  color: var(--footer-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.footer-brand-title:hover {
  color: var(--footer-link);
}

.footer-tagline {
  margin-top: var(--space-1);
  color: var(--footer-muted);
  font-size: 0.8125rem;
  line-height: 1.5;
  max-width: 32ch;
}

.footer-col-title {
  color: var(--footer-text);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.footer-links a,
.footer-links button {
  display: inline-block;
  background: none;
  border: none;
  padding-block: 0.5rem;
  padding-inline: 0;
  margin: 0;
  font: inherit;
  text-align: left;
  color: var(--footer-muted);
  text-decoration: none;
  font-size: 0.875rem;
  cursor: pointer;
}

.footer-links a:hover,
.footer-links button:hover {
  color: var(--footer-link);
}

.footer-bottom {
  border-top: 1px solid var(--footer-border);
}

.footer-bottom-inner {
  padding-block: var(--space-3);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  text-align: center;
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--footer-muted);
  line-height: 1.5;
}

.footer-copyright {
  font-size: 0.75rem;
  color: var(--footer-muted);
}

/* ---------- Cards (shared component) ---------- */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
}

/* ---------- Calculator ---------- */
.calculator {
  margin-top: var(--space-3);
  max-width: 620px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  border-color: #f3f4f6;
  box-shadow: var(--shadow-hero);
}

.segmented {
  display: flex;
  gap: 0.625rem;
}

.segmented button {
  flex: 1;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 0.625rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.segmented button:hover {
  border-color: var(--color-text-subtle);
}

.segmented button.is-active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-contrast);
}

.field[hidden] {
  display: none;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.field label,
.field-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.amount-input {
  font: inherit;
  font-variant-numeric: tabular-nums;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  background-color: var(--color-bg-alt);
  width: 100%;
}

.amount-input:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-surface);
  box-shadow: 0 0 0 3px rgba(91, 95, 239, 0.15);
}

.result-card {
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.result-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
}

.result-row--net {
  padding-top: var(--space-2);
  border-top: 1px dashed var(--color-border-strong);
}

.result-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.result-row--net .result-label {
  font-weight: 600;
  color: var(--color-text);
}

.result-value {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.result-row--net .result-value {
  color: var(--color-accent);
  font-size: 1.5rem;
  font-weight: 700;
}

/* ---------- Content sections ---------- */
.content-section {
  margin-top: var(--space-4);
}

.content-section h2 {
  margin-top: 2.5rem;
  margin-bottom: 0;
}

.content-section h3 {
  margin-top: var(--space-3);
  margin-bottom: var(--space-1);
}

.content-section h4 {
  margin-top: var(--space-2);
  margin-bottom: var(--space-1);
}

.content-section p + p {
  margin-top: 2.5rem;
}

.content-section ul,
.content-section ol {
  margin-top: var(--space-1);
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  line-height: 1.7;
}

/* ---------- Data tables ---------- */
.table-wrap {
  margin-top: var(--space-2);
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table th {
  background-color: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- FAQ ---------- */
.faq-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-3);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  cursor: pointer;
  font-weight: 500;
  color: var(--color-text);
  list-style: none;
}

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

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--color-text-subtle);
}

.faq-item[open] summary::after {
  content: "–";
  color: var(--color-accent);
}

.faq-item[open] summary {
  margin-bottom: var(--space-2);
}

.faq-item summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 4px;
}

/* FAQ grid variant (long lists): individual bordered items instead of one continuous list */
.faq-list.faq-list--grid {
  border: none;
  border-radius: 0;
  overflow: visible;
  background: none;
  gap: var(--space-2);
}

.faq-list--grid .faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

/* ---------- Disclaimer note ---------- */
.disclaimer-note {
  margin-top: var(--space-4);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-alt);
  font-size: 0.8125rem;
  line-height: 1.6;
}

.disclaimer-note h3 {
  margin-bottom: 0.375rem;
}

/* ---------- Legal content ---------- */
.legal {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.legal-section + .legal-section {
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.legal h2 {
  font-size: 1.625rem;
  margin-top: 2.5rem;
  margin-bottom: 0;
}

.legal h3 {
  font-size: 1.1875rem;
  margin-top: var(--space-2);
  margin-bottom: var(--space-1);
}

.legal p + p {
  margin-top: 2.5rem;
}

.legal address {
  font-style: normal;
}

.legal ul {
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  line-height: 1.7;
}

.legal a {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: none;
}

.legal a:hover {
  text-decoration: underline;
}

.intro-text {
  margin-top: var(--space-3);
  line-height: 1.7;
}

/* ---------- Blog listing card ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.blog-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.blog-card-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  background-color: var(--color-bg-alt);
}

.blog-card-thumb picture {
  display: block;
}

.blog-card-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card-thumb .article-tag {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  margin-bottom: 0;
  background-color: rgba(255, 255, 255, 0.92);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.18);
}

.blog-card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card-body h2 {
  font-size: 1rem;
  margin-bottom: var(--space-1);
}

.blog-card-body h2 a {
  color: var(--color-text);
  text-decoration: none;
}

.blog-card-body h2 a:hover {
  color: var(--color-accent);
}

.blog-card-body p {
  font-size: 0.9375rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-link {
  display: inline-block;
  margin-top: auto;
  padding-top: var(--space-2);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
}

.blog-card-link:hover {
  text-decoration: underline;
}

/* ---------- Article tag & meta ---------- */
.article-tag {
  display: inline-block;
  margin-bottom: var(--space-2);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background-color: var(--color-accent-tint);
  border: 1px solid rgba(91, 95, 239, 0.25);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.article-meta {
  margin-top: var(--space-1);
  color: var(--color-text-subtle);
  font-size: 0.8125rem;
}

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent);
  color: var(--color-accent-contrast);
  font: inherit;
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.btn-secondary:hover {
  border-color: var(--color-text-subtle);
  background-color: var(--color-bg-alt);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: var(--space-2);
}

.link-button {
  display: inline-block;
  background: none;
  border: none;
  padding-block: 0.5rem;
  padding-inline: 0;
  margin: 0;
  font: inherit;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  cursor: pointer;
}

.link-button:hover {
  text-decoration: underline;
}

.result-hint {
  margin: 0;
  padding-top: 0.25rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

.result-hint:empty {
  display: none;
}

/* ---------- Cookie banner ---------- */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
}

.cookie-banner-inner {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.cookie-banner-text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.cookie-banner-text a {
  color: var(--color-accent);
}

.cookie-banner-actions {
  display: flex;
  gap: 0.75rem;
}

.cookie-banner-actions button {
  flex: 1;
  min-height: 44px;
}

/* ---------- Author page ---------- */
.author-card {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.author-section + .author-section {
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.author-section > p {
  margin: 0 0 var(--space-2);
  line-height: 1.7;
}

.author-section > p:last-child {
  margin-bottom: 0;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-2);
}

.section-head h2 {
  margin: 0;
  font-size: 1.1875rem;
}

.icon-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-tint);
  color: var(--color-accent);
}

.icon-tile svg {
  width: 22px;
  height: 22px;
}

.source-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.source-list li {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  padding: 0.75rem var(--space-2);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-alt);
}

.source-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  align-self: flex-start;
}

.source-list a:hover {
  text-decoration: underline;
}

.source-list span {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.ext-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.link-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.link-card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.link-card:hover {
  border-color: var(--color-accent);
  background-color: var(--color-accent-tint);
}

.link-card-title {
  font-weight: 700;
  color: var(--color-text);
}

.link-card-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.notice-box {
  padding: var(--space-2);
  border: 1px solid #fde68a;
  border-radius: var(--radius-md);
  background-color: #fffbeb;
}

.notice-box h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: #92400e;
}

.notice-box h3 svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.notice-box p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: #78350f;
}

/* ---------- FAQ section headings ---------- */
.faq-section-head {
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
}

.faq-section-head + .faq-list {
  margin-top: 0;
}

/* ---------- Fact list (tinted rows) ---------- */
.fact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.fact-list li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.875rem var(--space-2);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-alt);
}

.fact-list strong {
  color: var(--color-text);
}

.fact-list span {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-2);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--color-text-muted);
  text-decoration: none;
  padding-block: 0.5rem;
}

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

.crumb-icon {
  width: 14px;
  height: 14px;
}

.crumb-sep {
  color: var(--color-text-subtle);
}

.breadcrumb [aria-current] {
  color: var(--color-text);
  font-weight: 600;
}

/* ---------- Contact page ---------- */
.hero-sub {
  max-width: 620px;
  margin-inline: auto;
  margin-top: var(--space-2);
  text-align: center;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.contact-layout {
  margin-top: var(--space-3);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.info-box {
  background-color: var(--color-accent-tint);
  border-radius: var(--radius-md);
  padding: var(--space-2);
}

.info-box--muted {
  background-color: var(--color-bg-alt);
}

.info-box--outline {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
}

.info-box h2,
.info-box h3,
.info-block h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.info-box p,
.info-block p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.info-block p + p {
  margin-top: 0.25rem;
}

.info-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.info-mail {
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  word-break: break-word;
}

.info-mail:hover {
  text-decoration: underline;
}

.btn-block {
  width: 100%;
}

/* ---------- Contact form status ---------- */
.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.form-status {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  border-radius: var(--radius-sm);
}

.form-status:empty {
  display: none;
}

.form-status.is-success {
  padding: 0.75rem 1rem;
  color: #14532d;
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.form-status.is-error {
  padding: 0.75rem 1rem;
  color: #7f1d1d;
  background-color: #fef2f2;
  border: 1px solid #fecaca;
}

.form-status a {
  color: inherit;
  font-weight: 600;
}

.btn-primary:disabled {
  opacity: 0.7;
  cursor: default;
}

/* ---------- Contact form ---------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  font: inherit;
  font-size: 0.9375rem;
  color: var(--color-text);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.875rem;
  width: 100%;
  min-height: 44px;
}

.form-field textarea {
  min-height: 150px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-surface);
  box-shadow: 0 0 0 3px rgba(91, 95, 239, 0.15);
}

.contact-form .btn-primary {
  min-height: 48px;
}

.contact-form-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ---------- Cookie status box ---------- */
.cookie-status {
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-alt);
  font-size: 0.9375rem;
}

.cookie-status strong {
  color: var(--color-text);
}

/* ---------- Related reads ---------- */
.related-card {
  margin-top: var(--space-4);
}

.related-card h2 {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
}

.related-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.related-item {
  padding: var(--space-2);
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-md);
}

.related-item a {
  display: inline-block;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.related-item a:hover {
  text-decoration: underline;
}

.related-item p {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ---------- Final CTA card ---------- */
.final-cta-card {
  margin-top: var(--space-4);
  text-align: center;
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.final-cta-card h2 {
  color: #ffffff;
  font-size: 1.25rem;
  margin-bottom: var(--space-1);
}

.final-cta-card p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
  margin-bottom: var(--space-3);
}

.final-cta-card .btn-primary {
  background-color: #ffffff;
  color: var(--color-accent);
}

.final-cta-card .btn-primary:hover {
  background-color: var(--color-bg-alt);
}

/* ---------- Article: section icons ---------- */
h2.h2-icon {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.section-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent);
}

.section-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: #ffffff;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Article: illustrations ---------- */
.article-illustration {
  margin: var(--space-4) auto;
  max-width: 300px;
}

.article-illustration svg {
  display: block;
  width: 100%;
  height: auto;
}

.illustration-caption {
  margin-top: var(--space-1);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
}

/* ---------- Article: photos ---------- */
.article-photo {
  margin: var(--space-4) auto;
  max-width: 800px;
}

.article-photo img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.illu-line {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.illu-line-muted {
  fill: none;
  stroke: var(--color-border-strong);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.illu-fill-tint {
  fill: var(--color-accent-tint);
  stroke: none;
}

.illu-fill-accent {
  fill: var(--color-accent);
  stroke: none;
}

/* ---------- Article: section spacing ---------- */
.article-section {
  margin-top: 3.5rem;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.article-section:first-of-type {
  border-top: none;
  padding-top: 0;
}

/* ---------- Article: example callouts ---------- */
.example-callout {
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-accent-tint);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.example-callout h3,
.example-callout h4 {
  margin-top: 0;
  color: var(--color-accent-dark);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: normal;
}

.example-callout p {
  color: var(--color-text);
}

.example-callout p strong {
  color: var(--color-accent-dark);
}

.example-callout p + p {
  margin-top: var(--space-1);
}

/* ---------- Article: calculator CTA card ---------- */
.cta-card {
  margin-top: var(--space-3);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  background-color: var(--color-accent-tint);
  border-color: var(--color-accent-tint);
}

.cta-card-body h2 {
  font-size: 1.0625rem;
  margin-bottom: 0.375rem;
}

.cta-card-body p {
  line-height: 1.5;
  font-size: 0.9375rem;
}

.cta-card-link {
  display: inline-block;
  padding-block: 0.5rem;
  margin-top: var(--space-1);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-accent);
  text-decoration: none;
}

.cta-card-link:hover {
  text-decoration: underline;
}

/* ---------- Article: table of contents ---------- */
.toc-card {
  margin-top: var(--space-3);
}

.toc-card h2 {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.625rem;
}

.toc-list a {
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.9375rem;
  line-height: 1.4;
}

.toc-list a:hover {
  text-decoration: underline;
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  :root {
    --space-4: 3.5rem;
  }

  body {
    font-size: 20px;
  }

  h1 {
    font-size: 3rem;
    letter-spacing: -0.03em;
    line-height: 1.167;
  }

  .toc-list {
    grid-template-columns: 1fr 1fr;
  }

  .blog-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-columns {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: var(--space-3);
  }

  .form-row-2 {
    grid-template-columns: 1fr 1fr;
  }

  .link-cards {
    grid-template-columns: 1fr 1fr;
  }

  .cookie-banner-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
  }

  .cookie-banner-actions button {
    flex: 0 0 auto;
  }

  .contact-layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: var(--space-4);
    padding: var(--space-3);
  }

  .footer-links {
    gap: 0.625rem;
  }

  .footer-links a,
  .footer-links button {
    padding-block: 0;
  }

  .footer-bottom-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav,
  .site-nav.is-open {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 0.125rem;
    background: none;
    border: none;
    padding: 0;
  }

  .site-nav-link {
    padding: 0.375rem 0.625rem;
  }
}

@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}