/* Shared blog styles and listing layout. Detail-specific styles live in detail.css. */
:root {
  --brand: #1d4ed8;
  --navbar-height: clamp(58px, 6.5vw, 76px);
  --navy: #0f2f78;
  --ink: #17243b;
  --muted: #657084;
  --line: #e5eaf1;
  --paper: #fff;
  --page-gutter: clamp(14px, 2.4vw, 28px);
  --section-gap: clamp(24px, 3.5vw, 44px);
  --card-gap: clamp(16px, 2.2vw, 24px);
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--navbar-height) + 12px);
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  padding-top: var(--navbar-height);
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
a,
button {
  -webkit-tap-highlight-color: transparent;
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid #2563eb;
  outline-offset: 4px;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
.sr-only,
.blog-skip {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.blog-skip:focus {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  width: auto;
  height: auto;
  padding: 12px 20px;
  clip-path: none;
  background: white;
  color: var(--brand);
}
.bd-navbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--navbar-height);
  background: var(--navy);
  color: white;
}
.bd-navbar__inner {
  max-width: 1200px;
  margin: auto;
  height: var(--navbar-height);
  padding: 0 var(--page-gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.bd-navbar__logo {
  flex-shrink: 0;
}
.bd-navbar__logo img {
  width: clamp(100px, 14vw, 145px);
  height: auto;
  filter: brightness(0) invert(1);
}
.bd-navbar__cta {
  display: inline-flex;
  align-items: center;
  gap: clamp(6px, 0.9vw, 12px);
  border: 0;
  border-radius: 6px;
  min-height: 36px;
  padding: clamp(7px, 0.85vw, 10px) clamp(9px, 1.2vw, 15px);
  font-size: clamp(10.5px, 0.9vw + 7px, 12px);
  white-space: nowrap;
  font-weight: 600;
}
.bd-navbar__cta:hover {
  background: #ffffff14;
}
.bd-navbar__cta svg {
  width: clamp(11px, 1vw, 13px);
  height: clamp(11px, 1vw, 13px);
  flex: none;
}
.blog-shell {
  max-width: 1200px;
  margin: auto;
  padding: clamp(22px, 3.5vw, 42px) var(--page-gutter) clamp(36px, 6.7vw, 80px);
  min-height: calc(100vh - 185px);
}
.blog-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: clamp(16px, 2.5vw, 30px);
  margin-bottom: clamp(20px, 2.5vw, 30px);
}
.blog-home {
  display: inline-flex;
  align-items: center;
  gap: clamp(8px, 1vw, 12px);
  color: var(--muted);
  font-size: clamp(10.5px, 1vw, 12px);
  margin-bottom: clamp(6px, 0.85vw, 10px);
}
.blog-home:hover {
  color: var(--brand);
}
.blog-home span {
  color: #b3bccb;
}
.blog-heading h1 {
  font-size: clamp(24px, 18px + 1.35vw, 34px);
  letter-spacing: -0.035em;
  line-height: 1.2;
  margin: 0;
  font-weight: 750;
}
.blog-heading h1 span {
  color: var(--brand);
}
.blog-search {
  display: flex;
  align-items: center;
  max-width: 100%;
  width: 340px;
  border: 1px solid #d8dfeb;
  border-radius: 7px;
  background: #f8fafc;
  overflow: visible;
}
.blog-search:focus-within {
  border-color: var(--brand);
}
.blog-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: clamp(9px, 1.1vw, 13px) 4px clamp(9px, 1.1vw, 13px)
    clamp(12px, 1.35vw, 16px);
  font-size: 14px;
  min-height: 42px;
  color: var(--ink);
}
.blog-search input:focus-visible {
  outline-offset: 0;
}
.blog-search input::placeholder {
  color: var(--muted);
}
.blog-search button {
  display: grid;
  place-items: center;
  flex: 0 0 clamp(40px, 4vw, 46px);
  align-self: stretch;
  background: transparent;
  border: 0;
  cursor: pointer;
  color: var(--brand);
  border-radius: 6px;
}
.blog-search button:hover {
  background: #eaf0ff;
}
.blog-search svg {
  width: clamp(17px, 1.7vw, 20px);
  height: clamp(17px, 1.7vw, 20px);
}
.blog-topics {
  display: flex;
  gap: clamp(18px, 2.4vw, 28px);
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(22px, 3.2vw, 38px);
  scrollbar-width: thin;
}
.blog-topics a {
  flex: none;
  font-size: clamp(11px, 1.1vw, 13px);
  font-weight: 600;
  color: var(--muted);
  padding: 8px 1px clamp(10px, 1.3vw, 15px);
  min-height: 40px;
  border-bottom: 2px solid transparent;
}
.blog-topics a:hover,
.blog-topics a[aria-current] {
  color: var(--brand);
}
.blog-topics a[aria-current] {
  border-color: var(--brand);
}
.blog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 264px;
  gap: var(--section-gap);
  align-items: start;
}
.blog-articles {
  min-width: 0;
  scroll-margin-top: 20px;
}
.blog-section-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: clamp(14px, 1.85vw, 22px);
}
.blog-section-heading h2 {
  font-size: clamp(18px, 15px + 0.7vw, 23px);
  letter-spacing: -0.025em;
  margin: 0;
  font-weight: 700;
  overflow-wrap: anywhere;
}
.blog-section-heading > span {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(22px, 2.85vw, 34px) var(--card-gap);
}
.blog-card {
  min-width: 0;
}
.blog-card__image {
  display: block;
  aspect-ratio: 16/10;
  background: #eff4fc;
  overflow: hidden;
  border-radius: clamp(5px, 0.7vw, 8px);
}
.blog-card__image > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s ease;
}
.blog-card__image:hover > img {
  transform: scale(1.025);
}
.blog-card__placeholder {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  background: #eaf0fc;
}
.blog-card__placeholder img {
  width: 54%;
  height: auto;
}
.blog-card__body {
  padding-top: clamp(10px, 1.35vw, 16px);
}
.blog-card__category {
  display: inline-block;
  font-size: clamp(10.5px, 0.95vw, 11px);
  font-weight: 600;
  color: var(--brand);
  margin-bottom: clamp(5px, 0.7vw, 8px);
}
.blog-card__category:hover {
  text-decoration: underline;
}
.blog-card h3 {
  font-size: clamp(15px, 12px + 0.6vw, 19px);
  line-height: 1.48;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(8px, 1.1vw, 13px);
  font-weight: 650;
  overflow-wrap: anywhere;
}
.blog-card h3 a:hover {
  color: var(--brand);
}
.blog-card time {
  font-size: clamp(11px, 1vw, 12px);
  color: var(--muted);
}
.blog-sidebar {
  padding-top: 3px;
}
.blog-study {
  padding: clamp(18px, 2.2vw, 26px);
  background: var(--navy);
  color: white;
  border-radius: 8px;
}
.blog-study__brand {
  display: block;
  width: clamp(108px, 10.5vw, 126px);
  height: auto;
  filter: brightness(0) invert(1);
}
.blog-study h2 {
  font-size: clamp(22px, 18px + 0.95vw, 29px);
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin: clamp(16px, 2.2vw, 26px) 0;
  font-weight: 700;
}
.blog-study > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #ffffff3d;
  padding-top: clamp(12px, 1.45vw, 17px);
  min-height: 40px;
  font-size: clamp(11.5px, 1.1vw, 13px);
  font-weight: 600;
}
.blog-study > a:hover {
  color: #d8e5ff;
}
.blog-study > a span {
  font-size: clamp(16px, 1.7vw, 20px);
  line-height: 1;
}
.blog-links {
  margin-top: clamp(20px, 2.4vw, 28px);
}
.blog-links h2 {
  font-size: clamp(14px, 1.35vw, 16px);
  margin: 0 0 10px;
  font-weight: 650;
}
.blog-links > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding: clamp(10px, 1.1vw, 13px) 0;
  min-height: 40px;
  font-size: clamp(12px, 1.1vw, 13px);
  font-weight: 500;
}
.blog-links > a span {
  color: #8793a7;
  font-size: clamp(14px, 1.45vw, 17px);
}
.blog-links > a:hover,
.blog-links > a:hover span {
  color: var(--brand);
}
.blog-query {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin: -8px 0 25px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  overflow-wrap: anywhere;
}
.blog-query > a {
  flex: none;
  color: var(--brand);
  font-size: 12px;
}
.blog-query > a span {
  margin-left: 6px;
}
.blog-empty {
  padding: clamp(30px, 4.85vw, 58px) clamp(16px, 2vw, 24px);
  text-align: center;
  background: #f8fafc;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.blog-empty h3 {
  font-size: clamp(16px, 1.5vw, 18px);
  font-weight: 600;
  margin: 0;
}
.blog-empty a {
  display: inline-block;
  margin-top: 16px;
  color: var(--brand);
  font-size: 13px;
}
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(5px, 0.7vw, 8px);
  margin-top: clamp(26px, 3.5vw, 42px);
}
.blog-pagination a {
  display: grid;
  place-items: center;
  min-width: clamp(36px, 3.2vw, 38px);
  min-height: clamp(36px, 3.2vw, 38px);
  border: 1px solid var(--line);
  border-radius: 5px;
  font-size: 13px;
}
.blog-pagination a[aria-current] {
  background: var(--brand);
  color: white;
  border-color: var(--brand);
}
.blog-pagination a:hover {
  border-color: var(--brand);
}
.blog-footer {
  border-top: 1px solid var(--line);
}
.blog-footer__inner {
  max-width: 1200px;
  margin: auto;
  padding: clamp(28px, 4vw, 48px) var(--page-gutter) clamp(18px, 2.4vw, 28px);
}
.blog-footer__top {
  display: grid;
  grid-template-columns: minmax(150px, 0.8fr) minmax(0, 3fr);
  gap: clamp(24px, 5vw, 72px);
}
.blog-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}
.blog-footer__brand img {
  width: clamp(104px, 10vw, 126px);
  height: auto;
}
.blog-footer__brand p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}
.blog-footer__menu > h2 {
  margin: 0 0 14px;
  font-size: 14px;
  letter-spacing: -0.01em;
}
.blog-footer__groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: clamp(26px, 3vw, 34px) clamp(22px, 2.8vw, 34px);
}
.blog-footer__group {
  min-width: 0;
}
.blog-footer__group h3 {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
}
.blog-footer__group a {
  display: block;
  width: fit-content;
  padding: 3px 0;
  font-size: 12px;
  line-height: 1.45;
}
.blog-footer__group a:hover,
.blog-footer__legal a:hover {
  color: var(--brand);
}
.blog-footer__legal {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: clamp(24px, 3vw, 36px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}
.blog-footer__legal a:last-child {
  margin-left: auto;
}

@media (max-width: 1100px) {
  .blog-layout {
    grid-template-columns: minmax(0, 1fr) 230px;
    gap: 28px;
  }
  .bd-navbar__inner {
    gap: 14px;
  }
}
@media (max-width: 900px) {
  .blog-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
  .blog-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 24px;
    border-top: 1px solid var(--line);
    padding-top: 24px;
  }
  .blog-links {
    margin: 0;
  }
  .blog-search {
    width: clamp(240px, 38vw, 340px);
  }
}
@media (max-width: 600px) {
  .blog-heading {
    align-items: stretch;
    flex-direction: column;
    gap: 16px;
  }
  .blog-search {
    width: 100%;
  }
  /* Keep editable fields at 16px to avoid focus zoom on iOS. */
  .blog-search input {
    font-size: 16px;
    line-height: 22px;
    padding-block: 9px;
  }
  .blog-topics {
    margin-bottom: 22px;
  }
  .blog-section-heading > span {
    font-size: 11px;
  }
  .blog-grid {
    column-gap: 16px;
  }
  .blog-card__image {
    aspect-ratio: 16/9;
  }
  .blog-sidebar {
    gap: 20px;
    padding-top: 22px;
  }
  .blog-footer__top {
    grid-template-columns: minmax(130px, 0.7fr) minmax(0, 2fr);
    gap: 24px;
  }
  .blog-footer__groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .blog-query {
    font-size: 12px;
    margin-bottom: 20px;
    padding-bottom: 12px;
  }
  .blog-query > a {
    font-size: 11px;
  }
}
@media (max-width: 480px) {
  .blog-grid {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 22px;
  }
  .blog-card__image {
    aspect-ratio: 2/1;
  }
  .blog-sidebar {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }
  .blog-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 20px;
  }
  .blog-links h2 {
    grid-column: 1/-1;
    margin-bottom: 4px;
  }
  .blog-query {
    flex-direction: column;
    gap: 8px;
  }
  .blog-footer__top {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .blog-footer__groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 20px;
  }
  .blog-footer__group a {
    font-size: 11px;
  }
  .blog-footer__legal {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .blog-footer__legal a:last-child {
    margin-left: 0;
  }
  .bd-navbar__inner {
    gap: 10px;
  }
}
@media (max-width: 360px) {
  .bd-navbar__inner {
    gap: 8px;
  }
  .bd-navbar__logo img {
    width: 94px;
  }
  .bd-navbar__cta {
    padding-inline: 8px;
    font-size: 10.5px;
    gap: 5px;
  }
  .blog-heading h1 {
    font-size: 23px;
  }
  .blog-topics {
    gap: 16px;
  }
  .blog-study {
    padding: 16px;
  }
  .blog-study h2 {
    font-size: 21px;
  }
  .blog-empty {
    padding: 26px 14px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}