@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;700;800&family=Source+Serif+4:opsz,wght@8..60,400;8..60,600&display=swap');

:root {
  --site-bg-1: #f8f5ef;
  --site-bg-2: #fbfaf6;
  --site-text: #18202a;
  --site-muted: #586271;
  --site-accent: #9c5a2e;
  --site-accent-deep: #7a3f16;
  --site-accent-soft: rgba(156, 90, 46, 0.12);
  --site-border: rgba(24, 32, 42, 0.14);
  --site-radius: 18px;
}

/* #11 Simplified body background */
body {
  color: var(--site-text);
  font-family: "Source Serif 4", Georgia, serif;
  background: var(--site-bg-1);
}

h1, h2, h3, h4 {
  color: #111827;
  font-family: "Manrope", "Segoe UI", sans-serif;
  letter-spacing: -0.01em;
}

p, li {
  line-height: 1.7;
}

a {
  color: var(--site-accent);
}

/* Content links use blue for clear clickability */
.apartsin-shell__main a,
.apartsin-page-header__lede a,
.hub-page__lede a,
.home-welcome-text a {
  color: #1d4ed8;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1.2px;
}

.apartsin-shell__main a:hover,
.apartsin-page-header__lede a:hover,
.hub-page__lede a:hover,
.home-welcome-text a:hover {
  color: #1e40af;
}

/* Exclude nav/UI elements from blue override */
.apartsin-shell__nav a,
.apartsin-shell__subnav a,
.apartsin-shell__crossnav a,
.apartsin-shell__brand,
.apartsin-page-header__crumbs a,
.hub-anchor-nav a,
.hub-links a,
.hub-card__cta,
.content-card__link,
.home-quick-link,
.home-cta,
.home-hero-switcher a,
.apartsin-backtotop {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--site-accent);
  outline-offset: 2px;
}

.apartsin-shell__main {
  padding-top: clamp(18px, 2.6vw, 36px);
}

.apartsin-shell__lead,
.apartsin-shell__main section {
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.06);
  backdrop-filter: blur(3px);
}

.apartsin-shell__lead,
.apartsin-shell__main section.yaqOZd {
  margin-bottom: clamp(12px, 1.8vw, 20px);
  overflow: hidden;
}

.apartsin-shell__main .tyJCtd,
.apartsin-shell__main .mYVXT,
.apartsin-shell__main .JNdkSc-SmKAyb {
  max-width: none !important;
}

.apartsin-shell__main .zfr3Q {
  color: var(--site-text);
  font-family: "Source Serif 4", Georgia, serif;
}

.apartsin-shell__main .duRjpb,
.apartsin-shell__main .JYVBee,
.apartsin-shell__main .OmQG5e {
  color: #111827;
  font-family: "Manrope", "Segoe UI", sans-serif;
  text-transform: none;
}

.apartsin-shell__main .CjVfdc .U26fgb,
.apartsin-shell__main a.FKF6mc {
  display: none !important;
}

.apartsin-shell__sidebar-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.apartsin-shell__sidebar-footer-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border: 1px solid var(--site-border);
  border-radius: 999px;
  color: var(--site-text);
  font-size: 0.84rem;
  line-height: 1;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.86);
}

.apartsin-shell__sidebar-footer-links a:hover {
  border-color: rgba(156, 90, 46, 0.4);
  color: var(--site-accent);
}

.cards-shell {
  margin-top: clamp(6px, 1.4vw, 14px);
}

.cards-shell .content-card {
  border-radius: 20px;
}

.cards-shell .content-card__title {
  line-height: 1.25;
}

/* #6 Restore serif for card descriptions */
.cards-shell .content-card__desc,
.cards-shell .content-card__meta,
.cards-shell .content-card__rich p {
  font-family: "Source Serif 4", Georgia, serif;
}

.cards-shell .content-card--collection .content-card__links {
  grid-template-columns: 1fr;
}

/* #9 Deeper accent for CTA links */
.cards-shell .content-card--wide-text,
.cards-shell .content-card--feature {
  border-color: rgba(156, 90, 46, 0.2);
  background:
    linear-gradient(180deg, rgba(156, 90, 46, 0.08), rgba(255, 255, 255, 0) 38%),
    #fff;
}

.content-card__link {
  background: rgba(122, 63, 22, 0.1) !important;
  color: var(--site-accent-deep) !important;
}

.content-card__link:hover {
  background: rgba(255, 255, 255, 0.78) !important;
  border-color: var(--site-accent-deep) !important;
  color: var(--site-accent-deep) !important;
}

.cards-toolbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 14px;
  padding: 12px;
  border: 1px solid var(--site-border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.86);
}

.cards-toolbar__search {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--site-border);
  border-radius: 10px;
  background: #fff;
  color: var(--site-text);
  font: 500 0.95rem "Manrope", "Segoe UI", sans-serif;
}

.cards-toolbar__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cards-toolbar__chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  border: 1px solid var(--site-border);
  border-radius: 999px;
  background: #fff;
  color: var(--site-muted);
  font: 700 0.76rem "Manrope", "Segoe UI", sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

.cards-toolbar__chip[aria-pressed="true"] {
  border-color: rgba(156, 90, 46, 0.35);
  color: var(--site-accent);
  background: var(--site-accent-soft);
}

.cards-toolbar__status {
  color: var(--site-muted);
  font: 600 0.78rem/1.25 "Manrope", "Segoe UI", sans-serif;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.cards-grid .content-card[hidden] {
  display: none !important;
}

.apartsin-page-path {
  display: none !important;
}

/* ── Page header (compact variant) ── */
.apartsin-page-header {
  position: relative;
  margin: 0 0 14px;
  padding: 14px 18px 16px;
  border: 1px solid rgba(24, 32, 42, 0.12);
  border-radius: 16px;
  background:
    linear-gradient(120deg, rgba(156, 90, 46, 0.1), rgba(46, 111, 156, 0.08) 45%, rgba(255, 255, 255, 0.94) 72%),
    rgba(255, 255, 255, 0.95);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.apartsin-page-header::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, rgba(156, 90, 46, 0.85), rgba(46, 111, 156, 0.5));
}

.apartsin-page-header__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.apartsin-page-header__kicker {
  margin: 0;
  color: var(--site-accent);
  font: 800 0.72rem/1 "Manrope", "Segoe UI", sans-serif;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.apartsin-page-header__crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  color: var(--site-muted);
  font: 700 0.72rem/1.2 "Manrope", "Segoe UI", sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.apartsin-page-header__crumbs strong {
  color: var(--site-text);
}

.apartsin-page-header__title {
  margin: 8px 0 0;
  color: #111827;
  font-family: "Manrope", "Segoe UI", sans-serif;
  font-size: clamp(1.25rem, 2.15vw, 1.9rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.apartsin-page-header__lede {
  margin: 7px 0 0;
  color: var(--site-muted);
  font: 600 0.84rem/1.48 "Manrope", "Segoe UI", sans-serif;
}

.apartsin-page-header--title-crumbs .apartsin-page-header__top {
  align-items: flex-start;
  gap: 10px 16px;
}

.apartsin-page-header--title-crumbs .apartsin-page-header__title {
  margin: 0;
  flex: 1 1 auto;
}

.apartsin-page-header--title-crumbs .apartsin-page-header__crumbs {
  justify-content: flex-end;
  text-align: right;
}

.apartsin-page-header--title-crumbs .apartsin-page-header__lede {
  margin: 12px auto 0;
  max-width: 68ch;
  text-align: center;
}

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

/* ── Page header (standard/hero variant) ── */
/* #3 Remove heavy border/shadow; #13 Add decorative accent */
.apartsin-page-header--standard {
  margin-bottom: clamp(18px, 2.4vw, 30px);
  padding: clamp(30px, 3.6vw, 48px) clamp(24px, 4.4vw, 56px) clamp(34px, 4.4vw, 56px);
  border-radius: 22px;
  border: none;
  background:
    url("data:image/svg+xml,%3Csvg width='20' height='20' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='1' cy='1' r='0.8' fill='rgba(156,90,46,0.07)'/%3E%3C/svg%3E") repeat,
    radial-gradient(120% 120% at 0% 0%, rgba(28, 79, 182, 0.1) 0%, rgba(28, 79, 182, 0) 50%),
    linear-gradient(135deg, rgba(156, 90, 46, 0.08), rgba(46, 111, 156, 0.06) 50%, rgba(255, 255, 255, 0.98) 75%),
    rgba(255, 255, 255, 0.97);
  box-shadow: none;
}

.apartsin-page-header--standard::after {
  height: 4px;
  background: linear-gradient(90deg, var(--site-accent) 0%, rgba(46, 111, 156, 0.6) 60%, transparent 100%);
}

.apartsin-page-header--standard .apartsin-page-header__top {
  justify-content: center;
}

.apartsin-page-header--standard .apartsin-page-header__kicker {
  display: none;
}

.apartsin-page-header--standard .apartsin-page-header__crumbs {
  justify-content: center;
  text-align: center;
  width: 100%;
  gap: 6px 10px;
  line-height: 1.3;
}

/* #7 Larger heading scale */
.apartsin-page-header--standard .apartsin-page-header__crumbs strong {
  display: block;
  flex-basis: 100%;
  margin: clamp(20px, 2.8vw, 28px) 0 0;
  color: var(--site-text);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  text-transform: none;
  font-weight: 800;
}

.apartsin-page-header--standard .apartsin-page-header__title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* #6 Serif lede text; #20 Max-width for readability */
.apartsin-page-header--standard .apartsin-page-header__lede {
  margin: clamp(24px, 3vw, 36px) auto 0;
  max-width: 68ch;
  text-align: left;
  line-height: 1.78;
  font-size: clamp(1.04rem, 1.05vw + 0.64rem, 1.2rem);
  font-family: "Source Serif 4", Georgia, serif;
  color: #334155;
  text-wrap: pretty;
}

/* Lede link weight boost */
.apartsin-page-header--standard .apartsin-page-header__lede a {
  font-weight: 600;
}

.apartsin-legacy-title-hidden {
  display: none !important;
}

.apartsin-legacy-banner-hidden {
  display: none !important;
}

/* ── About section ── */
.about-portrait {
  margin: 0 0 12px;
  padding: 12px;
  border: 1px solid var(--site-border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
}

.about-portrait img {
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: 10px;
}

.about-portrait p {
  margin: 10px 0 0;
  color: var(--site-muted);
  font: 600 0.86rem/1.45 "Manrope", "Segoe UI", sans-serif;
}

.about-hero {
  padding: clamp(14px, 2.5vw, 20px);
}

.about-hero__content {
  position: relative;
}

.about-hero__content::after {
  content: "";
  display: block;
  clear: both;
}

.about-hero .hub-page__title {
  margin-bottom: 8px;
}

.about-hero__media {
  float: left;
  width: clamp(120px, 19vw, 210px);
  margin: 2px 16px 10px 0;
}

.about-hero__media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--site-border);
  background: #fff;
}

.about-hero .hub-page__lede {
  max-width: none;
}

.about-hero .hub-anchor-nav {
  clear: both;
  margin-top: 12px;
}

.legacy-google-embed {
  border: 1px dashed rgba(156, 90, 46, 0.28) !important;
  background:
    repeating-linear-gradient(
      -45deg,
      rgba(156, 90, 46, 0.05),
      rgba(156, 90, 46, 0.05) 10px,
      rgba(255, 255, 255, 0.52) 10px,
      rgba(255, 255, 255, 0.52) 20px
    ) !important;
}

/* ── Back to top ── */
.apartsin-backtotop {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 48;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  height: 40px;
  border: 1px solid rgba(156, 90, 46, 0.38);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--site-accent);
  font: 800 0.73rem/1 "Manrope", "Segoe UI", sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.apartsin-backtotop:hover {
  background: #fff;
  border-color: rgba(156, 90, 46, 0.62);
}

.related-links {
  display: none !important;
}

/* ── Homepage ── */
.home-hero {
  padding: clamp(24px, 4.4vw, 44px);
}

.home-kicker {
  margin: 0 0 10px;
  color: var(--site-accent);
  font: 800 0.78rem/1 "Manrope", "Segoe UI", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.home-hero p {
  max-width: 68ch;
}

.home-welcome-text {
  margin: 14px 0 0;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.06rem;
  line-height: 1.78;
  color: #334155;
}

.home-welcome-text a {
  color: var(--site-accent-deep);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.home-hero-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
  padding: 7px;
  border: 1px solid rgba(24, 32, 42, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.88);
}

.home-hero-switcher > .apartsin-shell__menu-item {
  display: flex;
  flex: 1 1 130px;
}

.home-hero-switcher > a,
.home-hero-switcher > .apartsin-shell__menu-item > .apartsin-shell__home-nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid rgba(24, 32, 42, 0.14);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--site-text);
  font: 700 0.8rem/1 "Manrope", "Segoe UI", sans-serif;
  text-decoration: none;
}

.home-hero-switcher > a:hover,
.home-hero-switcher > a:focus-visible,
.home-hero-switcher > .apartsin-shell__menu-item > .apartsin-shell__home-nav-link:hover,
.home-hero-switcher > .apartsin-shell__menu-item > .apartsin-shell__home-nav-link:focus-visible {
  border-color: rgba(156, 90, 46, 0.38);
  color: var(--site-accent);
  background: #fff;
}

.home-hero-switcher .apartsin-shell__menu-item {
  padding-bottom: 0;
}

.home-hero-switcher .apartsin-shell__menu-item::after {
  top: 100%;
}

.home-hero-switcher .apartsin-shell__menu-dropdown {
  min-width: 230px;
}

.home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

/* ── Hub pages ── */
.hub-page {
  padding: clamp(18px, 3.2vw, 30px);
}

.hub-page__kicker {
  margin: 0;
  color: var(--site-accent);
  font: 800 0.76rem/1 "Manrope", "Segoe UI", sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hub-page__title {
  margin: 8px 0 0;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  line-height: 1.12;
}

/* #6 Serif hub lede */
.hub-page__lede {
  margin: 10px 0 0;
  max-width: 68ch;
  color: var(--site-muted);
  font: 600 0.98rem/1.7 "Source Serif 4", Georgia, serif;
}

.hub-page__visual {
  margin: 14px 0 0;
  border: 1px solid var(--site-border);
  border-radius: 14px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.08);
}

.hub-page__visual img {
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  background: rgba(248, 250, 252, 0.92);
}

.hub-anchor-nav {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hub-anchor-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--site-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--site-text);
  font: 700 0.78rem/1 "Manrope", "Segoe UI", sans-serif;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.hub-anchor-nav a:hover {
  border-color: rgba(156, 90, 46, 0.4);
  color: var(--site-accent);
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.hub-card {
  padding: 14px 15px;
  border: 1px solid var(--site-border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
  scroll-margin-top: 90px;
}

.hub-card h2 {
  margin: 0;
  font-size: 1rem;
}

.hub-card p {
  margin: 8px 0 0;
  color: var(--site-muted);
  font: 600 0.86rem/1.55 "Manrope", "Segoe UI", sans-serif;
}

.hub-inline-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  color: var(--site-muted);
  font: 700 0.82rem/1.4 "Manrope", "Segoe UI", sans-serif;
}

.hub-inline-links a {
  color: var(--site-accent);
  text-decoration: none;
}

.hub-inline-links a:hover {
  text-decoration: underline;
}

.hub-links {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.hub-links a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 9px;
  border: 1px solid var(--site-border);
  border-radius: 10px;
  background: #fff;
  color: var(--site-text);
  font: 700 0.81rem/1.25 "Manrope", "Segoe UI", sans-serif;
  text-decoration: none;
}

.hub-links a:hover {
  border-color: rgba(156, 90, 46, 0.4);
  color: var(--site-accent);
}

.home-hero-visual {
  margin: 0;
  border: 1px solid var(--site-border);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.1);
}

.home-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 360px;
  object-fit: cover;
}

.home-summary {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--site-border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.9);
}

.home-summary h2 {
  margin: 0 0 8px;
  font-size: 0.98rem;
}

.home-summary ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.home-summary a {
  display: block;
  padding: 8px 10px;
  border: 1px solid var(--site-border);
  border-radius: 10px;
  background: #fff;
  color: var(--site-text);
  text-decoration: none;
  font: 700 0.82rem/1.35 "Manrope", "Segoe UI", sans-serif;
}

.home-summary a:hover {
  border-color: rgba(156, 90, 46, 0.35);
  color: var(--site-accent);
}

.home-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.home-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 14px;
  border-radius: 10px;
  background: var(--site-accent-deep);
  border: 1px solid var(--site-accent-deep);
  color: #fff;
  text-decoration: none;
  font: 700 0.9rem/1 "Manrope", "Segoe UI", sans-serif;
}

.home-cta--ghost {
  background: rgba(255, 255, 255, 0.92);
  color: var(--site-accent-deep);
}

.home-featured {
  margin-top: 14px;
  padding: 16px;
}

.home-featured h2 {
  margin-top: 0;
}

.home-featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
}

.home-featured-grid a {
  display: flex;
  align-items: center;
  min-height: 58px;
  padding: 10px 12px;
  border: 1px solid var(--site-border);
  border-radius: 12px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.9);
  color: var(--site-text);
  font: 700 0.85rem/1.35 "Manrope", "Segoe UI", sans-serif;
}

.home-featured-grid a:hover {
  border-color: rgba(156, 90, 46, 0.38);
  color: var(--site-accent);
}

/* #19 Card image logo variant */
.content-card__media--logo {
  aspect-ratio: auto !important;
  padding: 20px;
  background: var(--site-bg-2);
}

.content-card__media--logo img {
  object-fit: contain !important;
  max-height: 120px;
}

/* #15 Scroll-reveal animations */
.content-card,
.prt-card,
.industry-card,
.student-project-card,
.book-card,
.bot-card,
.hub-card,
.syllabus-card {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 320ms ease, transform 320ms ease, box-shadow 180ms ease;
}

.is-revealed {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* #17 Filter transition (grid-level fade) */
.prt-grid,
.industry-grid,
.cards-grid,
.student-projects-shell .cards-grid {
  transition: opacity 120ms ease;
}

/* ── Page-specific improvements (Wave 2) ── */

/* Publication cards: stronger left border (#6) */
.pub-card {
  border-left-width: 4px !important;
  border-left-color: #164a83 !important;
}

/* Achievement cards: taller accent bar (#25) */
.achievement-card::before {
  height: 4px !important;
}

/* Past projects: decade heading spacing (#23) */
.prt-decade-heading {
  padding-bottom: 12px;
  margin-bottom: 16px;
}

/* Student projects toolbar status: styled (#13) */
.student-projects-toolbar__status {
  padding: 6px 10px;
  border-left: 3px solid var(--site-accent, #9c5a2e);
  background: rgba(156, 90, 46, 0.04);
  border-radius: 0 6px 6px 0;
}

/* Blog filter: active chip bottom accent (#31) */
.blog-filter-chip[aria-selected="true"],
.cards-toolbar__chip[aria-pressed="true"] {
  box-shadow: inset 0 -2px 0 var(--site-accent);
}

/* External link indicator (#32, #26, #20) */
.external-indicator::after {
  content: " \2197";
  font-size: 0.75em;
  opacity: 0.6;
}

/* Hub card with CTA button (#14) */
.hub-card__cta {
  display: inline-flex;
  align-items: center;
  margin-top: 8px;
  padding: 6px 12px;
  border: 1px solid var(--site-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--site-accent-deep, #7a3f16);
  font: 700 0.78rem/1 "Manrope", sans-serif;
  text-decoration: none;
  transition: background 150ms ease;
}

.hub-card__cta:hover {
  background: var(--site-accent-soft);
}

/* Stat badge for hero headers */
.hero-stat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--site-border);
  background: rgba(255, 255, 255, 0.9);
  color: var(--site-muted);
  font: 700 0.76rem/1.2 "Manrope", sans-serif;
}

.hero-stat__number {
  color: var(--site-accent-deep, #7a3f16);
  font-weight: 800;
}

/* Category/status badge for cards */
.card-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 6px;
  font: 700 0.64rem/1.3 "Manrope", sans-serif;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.card-badge--blue {
  background: rgba(24, 101, 168, 0.1);
  color: #164a83;
}

.card-badge--green {
  background: rgba(46, 125, 90, 0.1);
  color: #1e5e3a;
}

.card-badge--amber {
  background: rgba(156, 90, 46, 0.1);
  color: var(--site-accent-deep);
}

.card-badge--gold {
  background: rgba(180, 140, 20, 0.12);
  color: #7a6200;
}

/* Context badge for disambiguating duplicate pages (#17) */
.context-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(24, 101, 168, 0.08);
  color: #164a83;
  font: 800 0.62rem/1.2 "Manrope", sans-serif;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

/* Era badge for tech-stack cards (#29) */
.era-badge {
  display: inline-flex;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--site-border);
  background: rgba(133, 114, 81, 0.08);
  color: var(--site-text);
  font: 800 0.7rem/1.2 "Manrope", sans-serif;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

/* Empty state for filters (#15) */
.filter-empty-state {
  grid-column: 1 / -1;
  padding: 24px;
  text-align: center;
  color: var(--site-muted);
  font: 600 0.9rem/1.5 "Manrope", sans-serif;
}

/* Intro callout section (#20, #27) */
.intro-callout {
  margin-bottom: 16px;
  padding: 16px 18px;
  border: 1px solid var(--site-border);
  border-radius: 14px;
  border-left: 4px solid var(--site-accent);
  background: rgba(255, 255, 255, 0.9);
}

.intro-callout p {
  margin: 0;
  color: var(--site-muted);
  font: 600 0.9rem/1.6 "Source Serif 4", Georgia, serif;
}

/* ── Section Quick Links ── */
.section-quick-links {
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid var(--site-border);
  border-radius: 14px;
  background: #fff;
}
.section-quick-links__title {
  margin: 0 0 10px;
  color: var(--site-text);
  font: 800 0.72rem/1.2 "Manrope", sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.section-quick-links__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 8px;
}
.section-quick-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--site-border);
  border-radius: 10px;
  background: var(--site-bg-2, #fbfaf6);
  text-decoration: none;
  color: var(--site-text);
  font: 700 0.82rem/1.3 "Manrope", sans-serif;
  transition: box-shadow 150ms ease, transform 150ms ease;
}
.section-quick-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(24,32,42,0.06);
}
.section-quick-link__badge {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 800;
  color: #fff;
  background: var(--site-accent);
}

/* ── HoS brand accent ── */
.hos-brand {
  font-weight: 800;
  color: #164a83;
  letter-spacing: -0.01em;
  background: rgba(22, 74, 131, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
}

a .hos-brand,
a.hos-brand {
  color: #164a83;
  text-decoration-color: rgba(22, 74, 131, 0.3);
}

.section-quick-links__title .hos-brand,
.hub-page__title .hos-brand,
.apartsin-page-header__crumbs .hos-brand {
  color: #164a83;
}

/* Global card hover lift */
.hub-card,
.edu-card,
.former-card,
.curriculum-card,
.achievement-card,
.venture-card,
.patent-card,
.pub-card,
.research-area,
.syllabus-card {
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.hub-card:hover,
.edu-card:hover,
.former-card:hover,
.curriculum-card:hover,
.achievement-card:hover,
.venture-card:hover,
.patent-card:hover,
.pub-card:hover,
.research-area:hover,
.syllabus-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
}

/* #6 Standardize quick-link badge sizes */
.section-quick-link__badge {
  flex: 0 0 36px !important;
  width: 36px !important;
  height: 36px !important;
  font-size: 0.8rem !important;
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .apartsin-shell__main section.yaqOZd {
    border-radius: 14px;
  }
}

@media (min-width: 961px) {
  .home-hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }
}

@media (max-width: 640px) {
  .cards-toolbar {
    padding: 10px;
  }

  .home-hero,
  .home-featured {
    padding: 16px;
  }

  .home-hero-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .apartsin-page-header {
    padding: 12px 12px 13px;
    border-radius: 14px;
  }

  .apartsin-page-header__crumbs {
    font-size: 0.68rem;
    letter-spacing: 0.05em;
  }

  .apartsin-page-header--title-crumbs .apartsin-page-header__crumbs {
    justify-content: flex-start;
    text-align: left;
  }

  .apartsin-page-header--title-crumbs .apartsin-page-header__lede {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
  }

  .apartsin-page-header--standard {
    padding: 22px 18px 24px;
    border-radius: 18px;
  }

  .apartsin-page-header--standard .apartsin-page-header__crumbs strong {
    margin-top: 14px;
    font-size: clamp(1.4rem, 7vw, 1.8rem);
  }

  .apartsin-page-header--standard .apartsin-page-header__lede {
    margin-top: 16px;
    line-height: 1.65;
    font-size: 1rem;
  }

  .apartsin-backtotop {
    right: 12px;
    bottom: 12px;
  }

  .about-hero__media {
    float: none;
    width: min(220px, 58vw);
    margin: 4px auto 12px;
  }

  .about-hero .hub-anchor-nav {
    justify-content: center;
  }
}