:root {
  --ink: #1f2530;
  --muted: #4e5868;
  --line: #d8dde5;
  --panel: #eef4f4;
  --accent: #6a63b6;
  --accent-soft: rgba(106, 99, 182, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Source Sans 3", sans-serif;
  background: #ffffff;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.masthead {
  min-height: 305px;
  background:
    linear-gradient(rgba(10, 36, 74, 0.58), rgba(10, 36, 74, 0.58)),
    linear-gradient(rgba(211, 168, 44, 0.28), rgba(211, 168, 44, 0.28)),
    url("cover_logo.jpeg") center/cover no-repeat;
  border-bottom: 1px solid #e7ecf0;
}

.masthead-inner,
.page-shell {
  width: min(1180px, calc(100% - 3rem));
  margin: 0 auto;
}

.masthead-inner {
  position: relative;
  min-height: 305px;
  padding: 0.8rem 0 0;
}

.hero-title {
  position: absolute;
  left: 50%;
  top: 48%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 1;
}

.hero-title-small {
  top: 54%;
}

.masthead h1 {
  margin: 0;
  color: #ffffff !important;
  font-family: "Source Sans 3", sans-serif;
  font-size: clamp(3.4rem, 7vw, 5.1rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.72);
}

.top-nav {
  position: absolute;
  top: 0.5rem;
  right: 0;
  display: flex;
  gap: 1rem;
  align-items: center;
  z-index: 3;
}

.search-shell {
  position: absolute;
  top: 3.35rem;
  right: 0;
  display: flex;
  align-items: center;
  gap: 0;
  z-index: 3;
}

.search-shell input {
  width: 170px;
  height: 31px;
  padding: 0 10px;
  border: 1px solid #6f6f6f;
  background: rgba(255, 255, 255, 0.99);
  font: inherit;
  color: #222222;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}

.search-shell button {
  height: 31px;
  padding: 0 12px;
  border: 1px solid #777777;
  border-left: 0;
  background: #5c5c5c;
  color: #ffffff;
  font: inherit;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}

.page-shell {
  padding-bottom: 3rem;
}

.top-nav a {
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.55rem 0.85rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55);
  background: transparent;
}

.top-nav a:hover,
.top-nav a.is-active {
  color: #ffffff;
  background: #222222;
  text-decoration: none;
}

.site-main {
  padding-top: 1.45rem;
}

.panel {
  padding: 1.9rem 1.65rem 2rem;
}

.narrow-panel {
  max-width: 1040px;
}

.home-panel {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 2rem;
  align-items: start;
  background: var(--panel);
  border: 1px solid #e4ebed;
}

.home-copy h2 {
  margin: 0 0 0.5rem;
  color: #3b4350;
  font-size: 1.95rem;
  font-weight: 700;
  text-transform: uppercase;
}

.home-copy p,
.research-entry p,
.section-intro,
.intro-text p {
  margin: 0 0 0.85rem;
  color: #444444;
  font-size: 1.05rem;
  line-height: 1.55;
}

.welcome-copy {
  padding-top: 0;
}

.welcome-copy p {
  max-width: none;
  font-size: 1.05rem;
}

.welcome-copy p + p {
  margin-top: 0;
}

.home-photo img {
  width: 100%;
  max-width: 370px;
  display: block;
  border: 1px solid #d7d7d7;
}

.divider {
  margin: 1.6rem 0 1.3rem;
  border: 0;
  border-top: 1px solid #dddddd;
}

.section-heading {
  margin: 0 0 1rem;
  color: #444444;
  font-size: 1.2rem;
  font-weight: 700;
  text-decoration: underline;
}

.paper-title {
  color: #222222;
  font-weight: 700;
}

.paper-status {
  color: #444444;
  font-weight: 700;
}

.paper-link,
.cv-link {
  color: var(--accent);
  font-weight: 700;
}

.research-entry {
  margin-bottom: 1.85rem;
}

.research-entry p,
.research-entry span,
.research-entry em {
  color: #444444;
}

.research-entry ul {
  margin: 0.35rem 0 0 1.4rem;
  color: #444444;
}

.research-entry li {
  margin-bottom: 0.45rem;
  line-height: 1.5;
}

.paper-abstract {
  margin: 0.5rem 0 0.6rem;
}

.paper-abstract strong {
  color: #222222;
}

.paper-links {
  margin: 0;
  display: flex;
  gap: 1rem;
}

.cv-panel {
  max-width: 1040px;
  padding-top: 0.8rem;
}

.cv-download {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  max-width: 420px;
}

.pdf-icon {
  width: 52px;
  height: 66px;
  display: grid;
  place-items: center;
  border: 1px solid #c8c8c8;
  background: linear-gradient(180deg, #ffffff, #ececec);
  color: #cf3c1f;
  font-size: 0.95rem;
  font-weight: 700;
}

.cv-title {
  margin: 0;
  color: #666666;
  font-size: 1.05rem;
  font-weight: 700;
}

@media (max-width: 900px) {
  .masthead-inner,
  .page-shell {
    width: min(100% - 2rem, 1180px);
  }

  .masthead {
    min-height: 230px;
  }

  .masthead-inner {
    min-height: 230px;
  }

  .top-nav {
    gap: 0.7rem;
  }

  .top-nav a {
    padding: 0.5rem 0.75rem;
  }

  .search-shell input {
    width: 150px;
  }

  .panel {
    padding: 1.5rem 1.25rem 1.75rem;
  }

  .home-panel {
    grid-template-columns: 1fr;
  }

  .home-photo img {
    max-width: 100%;
  }

  .cv-download {
    max-width: 100%;
  }
}

@media (max-width: 640px) {
  .masthead-inner,
  .page-shell {
    width: min(100% - 1.25rem, 1180px);
  }

  .masthead {
    min-height: 230px;
  }

  .masthead-inner {
    min-height: 230px;
    padding-top: 0.85rem;
  }

  .top-nav {
    position: static;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 0.85rem;
  }

  .search-shell {
    position: static;
    width: 100%;
    margin-bottom: 0.85rem;
  }

  .search-shell input {
    width: 100%;
    min-width: 0;
  }

  .hero-title,
  .hero-title-small {
    position: static;
    transform: none;
    text-align: center;
    padding-top: 0.6rem;
  }

  .masthead h1 {
    font-size: clamp(2.3rem, 11vw, 3.2rem);
    line-height: 1.05;
  }

  .site-main {
    padding-top: 1rem;
  }

  .panel {
    padding: 1.25rem 1rem 1.5rem;
  }

  .section-heading {
    font-size: 1.1rem;
  }

  .research-entry ul {
    margin-left: 1.1rem;
  }

  .cv-download {
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .masthead {
    min-height: 250px;
  }

  .masthead-inner {
    min-height: 250px;
  }

  .top-nav a {
    font-size: 0.98rem;
    padding: 0.48rem 0.65rem;
  }

  .search-shell button {
    padding: 0 11px;
  }

  .home-copy h2 {
    font-size: 1.6rem;
  }

  .home-copy p,
  .research-entry p,
  .section-intro,
  .intro-text p,
  .research-entry li {
    font-size: 1rem;
  }

  .pdf-icon {
    width: 46px;
    height: 58px;
    font-size: 0.85rem;
  }
}

body.home-landing .masthead {
  min-height: 300px;
  border-bottom: 0;
  background:
    linear-gradient(rgba(10, 36, 74, 0.58), rgba(10, 36, 74, 0.58)),
    linear-gradient(rgba(211, 168, 44, 0.28), rgba(211, 168, 44, 0.28)),
    url("cover_logo.jpeg") center/cover no-repeat;
}

body.home-landing .masthead-inner {
  min-height: 300px;
}

body.home-landing .top-nav {
  gap: 0.7rem;
}

body.home-landing .top-nav a {
  color: #ffffff;
  font-size: 1.05rem;
  padding: 0.55rem 0.85rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55);
}

body.home-landing .top-nav a:hover,
body.home-landing .top-nav a.is-active {
  color: #ffffff;
  background: #222222;
  text-decoration: none;
}

body.home-landing .hero-title {
  top: 58%;
}

body.home-landing .masthead h1 {
  color: #222222;
  font-size: clamp(3.2rem, 7vw, 4.7rem);
  text-transform: uppercase;
}

body.home-landing .site-wordmark {
  position: absolute;
  left: -420px;
  top: -126px;
  margin: 0;
  color: #202225;
  font-size: 0.95rem;
  font-weight: 700;
}

body.home-landing .hero-rule {
  width: min(58vw, 730px);
  height: 6px;
  margin: 0.85rem auto 0;
  background: rgba(157, 214, 255, 0.95);
  border-radius: 999px;
}

body.home-landing .site-main {
  padding-top: 0;
}

body.home-landing .panel {
  padding: 1.75rem 1.65rem 2rem;
}

body.home-landing .home-panel {
  grid-template-columns: 430px 1fr;
  gap: 2.1rem;
  background: #6f8393;
  border: 0;
}

body.home-landing .home-copy h2 {
  color: #ffffff;
  font-size: 4rem;
  line-height: 1;
}

body.home-landing .home-copy p {
  color: #ffffff;
  font-size: 1.02rem;
  line-height: 1.45;
}

body.home-landing .welcome-copy a {
  color: #c7a6ff;
  font-weight: 700;
}

body.home-landing .welcome-copy a:hover {
  color: #f0c6ff;
}

body.home-landing .welcome-copy {
  padding-top: 0.8rem;
}

body.home-landing .welcome-copy p {
  max-width: 690px;
  font-size: 0.98rem;
}

body.home-landing .welcome-copy p + p {
  margin-top: 1.35rem;
}

body.home-landing .home-photo img {
  max-width: 430px;
  border: 0;
}

@media (max-width: 900px) {
  body.home-landing .masthead {
    min-height: 240px;
  }

  body.home-landing .masthead-inner {
    min-height: 240px;
  }

  body.home-landing .hero-title {
    top: 56%;
  }

  body.home-landing .home-panel {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }

  body.home-landing .home-photo img {
    max-width: 100%;
  }
}

@media (max-width: 640px) {
  body.home-landing .masthead {
    min-height: 260px;
  }

  body.home-landing .masthead-inner {
    min-height: 260px;
  }

  body.home-landing .site-wordmark {
    position: static;
    left: auto;
    top: auto;
    margin-bottom: 0.55rem;
    font-size: 0.92rem;
    text-align: center;
  }

  body.home-landing .top-nav {
    justify-content: center;
  }

  body.home-landing .search-shell {
    width: 100%;
  }

  body.home-landing .hero-title {
    top: auto;
  }

  body.home-landing .masthead h1 {
    font-size: clamp(2.4rem, 11vw, 3.6rem);
  }

  body.home-landing .hero-rule {
    width: min(82vw, 420px);
    margin: 0.75rem auto 0;
  }

  body.home-landing .panel {
    padding: 1.25rem 1rem 1.5rem;
  }

  body.home-landing .home-panel {
    gap: 1.1rem;
  }

  body.home-landing .home-copy h2 {
    font-size: 2.3rem;
  }

  body.home-landing .welcome-copy {
    padding-top: 0;
  }

  body.home-landing .welcome-copy p {
    font-size: 0.98rem;
  }
}

@media (max-width: 480px) {
  body.home-landing .masthead {
    min-height: 280px;
  }

  body.home-landing .masthead-inner {
    min-height: 280px;
  }

  body.home-landing .home-copy h2 {
    font-size: 2rem;
  }
}