:root {
  --navy: #1c3557;
  --navy-deep: #152844;
  --teal: #6d8b99;
  --sage: #a8b3a4;
  --heart: #9c5852;
  --paper: #f6f5f2;
  --white: #fff;
  --muted: #4d5560;
  --line: rgba(28, 53, 87, 0.14);
  --header: 4.5rem;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--navy);
  background: var(--paper);
}

img {
  max-width: 100%;
}

h1,
h2,
h3 {
  font-family: "Libre Baskerville", Georgia, serif;
  font-weight: 400;
  line-height: 1.22;
  margin: 0 0 0.7rem;
}

h1 {
  font-size: clamp(1.85rem, 4vw, 2.85rem);
  max-width: 16ch;
}

h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
}

h3 {
  font-size: 1.2rem;
}

p {
  margin: 0 0 0.85rem;
}

a {
  color: var(--navy);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -80px;
  background: var(--navy);
  color: #fff;
  padding: 0.5rem 0.75rem;
  z-index: 40;
}

.skip-link:focus {
  top: 0.6rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(246, 245, 242, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header);
  gap: 1rem;
}

.wordmark {
  display: flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
}

.logo {
  height: 2.55rem;
  width: auto;
  display: block;
}

.logo-footer {
  height: 2.4rem;
  margin-bottom: 0.9rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.site-nav a {
  text-decoration: none;
  font-weight: 600;
  color: var(--navy);
}

.site-nav a:not(.btn):hover {
  color: var(--heart);
}

.site-nav a.btn {
  color: #fff;
}

.site-nav a.btn:hover {
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 6px 0;
  background: var(--navy);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  color: #fff;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid var(--navy);
  padding: 0.65rem 1.1rem;
  cursor: pointer;
}

.btn:hover {
  background: var(--navy-deep);
}

.btn-ghost {
  background: transparent;
  color: var(--navy);
}

.thanks {
  padding-top: 5rem;
  padding-bottom: 6rem;
}

.thanks h1 {
  max-width: 18ch;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--heart);
  margin-bottom: 0.7rem;
}

.lede {
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.hero-photo {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-photo img {
  display: block;
  width: min(100%, 28rem);
  height: auto;
  filter: drop-shadow(0 18px 28px rgba(28, 53, 87, 0.16));
}

.chapter-photo {
  margin: 0 0 2.2rem;
}

.chapter-photo img {
  display: block;
  width: 100%;
  height: auto;
}

.stats-band {
  margin-top: 3rem;
  background: var(--navy);
  color: #fff;
  padding: 2rem 0;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  margin: 0;
}

.stats dt {
  font-family: "Libre Baskerville", serif;
  font-size: clamp(1.4rem, 2.2vw, 1.85rem);
  margin: 0;
}

.stats dd {
  margin: 0.35rem 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
}

.section {
  padding: 4.2rem 0;
}

.section-head {
  max-width: 38rem;
  margin-bottom: 2rem;
}

.why {
  background: #eef1ee;
}

.why-grid {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 2.5rem;
  align-items: center;
}

.why-mark {
  width: 9rem;
  height: auto;
}

.prose {
  max-width: 40rem;
  color: var(--muted);
}

.recognition-grid {
  display: grid;
  grid-template-columns: 1fr min(18rem, 38%);
  gap: 2.5rem;
  align-items: center;
}

.recognition-photo {
  margin: 0;
  max-width: 18rem;
}

.recognition-photo img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--white);
}

.pillars {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.pillars > li {
  padding: 1.5rem 1.3rem 1.55rem;
  background: var(--white);
  border-top: 3px solid var(--teal);
}

.pillar-line {
  font-style: italic;
  color: var(--navy) !important;
}

.pillars > li > p {
  color: var(--muted);
  margin-bottom: 0.7rem;
}

.tab-list {
  display: flex;
  flex-wrap: nowrap;
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  border-bottom: 1px solid var(--line);
  margin: 0 0 1.4rem;
}

.tab-list [role="tab"] {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 0.75rem 1rem;
  font: inherit;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  flex: 0 0 auto;
  white-space: nowrap;
}

.tab-list [role="tab"][aria-selected="true"] {
  color: var(--navy);
  border-bottom-color: var(--heart);
}

.tab-list-campus {
  margin-top: 0.1rem;
}

.tab-list-campus [role="tab"] {
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.55rem 0.9rem;
}

.campus-block {
  padding-bottom: 0.5rem;
}

.campus-block-usc {
  margin-top: 0;
  padding-top: 0;
}

.campus-heading {
  margin: 0 0 0.65rem;
  font-family: "Source Sans 3", system-ui, sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--navy);
}

.ig {
  margin: 0 0 1rem;
  font-weight: 600;
}

.ig a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
}

.ig a:hover {
  color: var(--heart);
}

.ig-icon {
  display: block;
  flex-shrink: 0;
}

.board-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.board-grid-one {
  grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr));
}

.board-grid li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.05rem;
  background: var(--white);
  border: 1px solid var(--line);
}

.board-photo {
  display: block;
  width: 4.5rem;
  height: 4.5rem;
  object-fit: cover;
  object-position: center top;
  flex-shrink: 0;
  margin: 0;
}

.board-office {
  margin: 0 0 0.3rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
}

.board-name {
  margin: 0;
  min-height: 1.3em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.board-social {
  display: inline-flex;
  color: var(--navy);
  opacity: 0.5;
}

.board-social:hover {
  opacity: 1;
}

.involved {
  background: var(--white);
  border-top: 1px solid var(--line);
}

.paths {
  list-style: none;
  padding: 0;
  margin: 0 0 2.2rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.paths li {
  padding: 1.1rem 1rem 1.15rem;
  background: var(--paper);
}

.paths p {
  color: var(--muted);
  margin: 0;
  font-size: 0.95rem;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1.1rem;
  max-width: 46rem;
}

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

.contact-form label {
  display: grid;
  gap: 0.3rem;
  font-weight: 700;
  font-size: 0.88rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  font: inherit;
  font-weight: 400;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  background: var(--paper);
}

.form-note {
  margin: 0.6rem 0 0;
  color: var(--heart);
}

.honey {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.78);
  padding: 2.4rem 0;
}

.footer-inner .wordmark {
  display: block;
}

.legal {
  font-size: 0.85rem;
  max-width: 38rem;
  margin: 0.7rem 0 0;
  opacity: 0.7;
}

@media (max-width: 900px) {
  .hero {
    padding-top: 1.65rem;
  }

  .hero-grid,
  .why-grid,
  .recognition-grid,
  .pillars,
  .paths,
  .stats,
  .board-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .hero-photo img {
    width: min(100%, 20rem);
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.6rem 1.2rem 1rem;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }

  .site-nav a {
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--line);
  }

  .site-nav .btn {
    margin-top: 0.7rem;
    width: fit-content;
  }

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