:root {
  --bg: #ffffff;
  --panel: #e3f2ff;
  --content: #ffffff;
  --line: #d3e1ee;
  --text: #1b2733;
  --muted: #4f6476;
  --accent: #1f5f8a;
  --sidebar-width: 280px;
}

[data-theme="dark"] {
  --bg: #111722;
  --panel: #1a2534;
  --content: #151e2b;
  --line: #304053;
  --text: #ecf2f8;
  --muted: #b3c2d2;
  --accent: #80c6ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  background: var(--panel);
  border-right: 1px solid var(--line);
  z-index: 30;
}

.sidebar__inner {
  height: 100%;
  padding: 48px 30px;
  display: flex;
  flex-direction: column;
}

.site-title {
  margin: 0;
  font-family: "EB Garamond", Georgia, serif;
  font-size: 2rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.site-subtitle {
  margin: 8px 0 28px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav {
  margin-top: 12px;
}

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

.nav a {
  display: block;
  padding: 8px 10px;
  color: var(--text);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: border-color 180ms ease, color 180ms ease, background-color 180ms ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--accent);
  border-left-color: var(--accent);
  background-color: rgba(138, 63, 44, 0.06);
  outline: none;
}

.nav a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
  background-color: rgba(138, 63, 44, 0.1);
}

.sidebar-note {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.theme-toggle {
  align-self: flex-end;
  margin-top: 10px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--content) 92%, var(--panel) 8%);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color 200ms ease, border-color 200ms ease, color 200ms ease, transform 200ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  outline: none;
}

.theme-toggle__icon {
  pointer-events: none;
}

html.theme-transition *,
html.theme-transition *::before,
html.theme-transition *::after {
  transition: background-color 250ms ease, color 250ms ease, border-color 250ms ease, box-shadow 250ms ease;
}

.content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  max-width: 960px;
  padding: 72px 64px;
}

.page-header h1 {
  margin: 0;
  font-family: "EB Garamond", Georgia, serif;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 600;
  line-height: 1.1;
}

.page-header p {
  margin: 16px 0 0;
  max-width: 68ch;
  color: var(--muted);
}

.card-grid {
  margin-top: 42px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.card-grid--tight {
  margin-top: 12px;
}

.card {
  background: var(--content);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}

.card h2,
.feature h2,
.section-block h2 {
  margin: 0;
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.55rem;
  font-weight: 600;
}

.card p,
.feature p,
.section-block p,
.section-block li {
  color: var(--text);
}

.feature,
.section-block {
  margin-top: 28px;
  background: var(--content);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
}

.feature__image {
  margin-top: 14px;
  display: block;
  width: min(100%, 420px);
  border-radius: 12px;
  border: 1px solid var(--line);
  background-color: #ece8df;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.list-clean {
  margin: 12px 0 0;
  padding-left: 18px;
}

.contact-links {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact-links a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
}

.subheading {
  margin: 26px 0 10px;
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.35rem;
  font-weight: 600;
}

.home-hero {
  display: grid;
  grid-template-columns: 1.3fr minmax(220px, 320px);
  gap: 30px;
  align-items: start;
  background: var(--content);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
}

.home-hero h1 {
  margin: 6px 0 8px;
  font-family: "EB Garamond", Georgia, serif;
  font-size: clamp(2.1rem, 3.6vw, 3rem);
  line-height: 1.1;
}

.home-hero__meta {
  margin: 0;
  color: var(--text);
  font-size: 1.02rem;
}

.home-hero__summary {
  margin: 16px 0 0;
  color: var(--text);
  max-width: 62ch;
}

.chip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip-list li,
.chip-list span {
  display: inline-flex;
  align-items: center;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background-color: color-mix(in srgb, var(--panel) 42%, var(--content) 58%);
  color: var(--text);
  font-size: 0.9rem;
}

.action-row {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--content);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 8px 18px rgba(14, 27, 43, 0.18);
  transform: translateY(-1px);
  outline: none;
}

.home-hero__photo-wrap {
  margin: 0;
}

.home-hero__photo {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background-color: #ece8df;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.home-hero__photo-wrap figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.news-list {
  margin: 10px 0 0;
  padding-left: 20px;
  display: grid;
  gap: 14px;
}

.news-list li {
  padding-left: 6px;
}

.news-date {
  display: inline-block;
  min-width: 82px;
  margin-right: 10px;
  font-size: 0.85rem;
  color: var(--muted);
}

.news-list p {
  display: inline;
  margin: 0;
  color: var(--text);
}

.project-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.project-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--content);
  padding: 16px;
}

.project-card__image {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 12px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #ece8df;
}

.project-card h3,
.interest-card h3,
.card h3 {
  margin: 0;
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.32rem;
}

.project-card p,
.interest-card p,
.card h3 + p {
  margin-top: 8px;
  color: var(--text);
}

.project-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.interest-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.interest-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: color-mix(in srgb, var(--panel) 28%, var(--content) 72%);
}

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

.course-search {
  width: 100%;
  max-width: 560px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--content);
  padding: 11px 13px;
  font: inherit;
  color: var(--text);
}

.course-search:focus-visible {
  border-color: var(--accent);
  outline: 2px solid rgba(138, 63, 44, 0.16);
  outline-offset: 1px;
}

.search-help {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.search-empty {
  margin: 12px 0 0;
  color: var(--accent);
  font-weight: 600;
}

.semester {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--content);
}

.semester h3 {
  margin: 0;
}

.semester-toggle {
  width: 100%;
  text-align: left;
  border: 0;
  background: color-mix(in srgb, var(--panel) 45%, var(--content) 55%);
  border-radius: 12px;
  padding: 14px 16px;
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.35rem;
  color: var(--text);
  cursor: pointer;
}

.semester-toggle::after {
  content: "▾";
  float: right;
  transition: transform 160ms ease;
}

.semester-toggle[aria-expanded="false"]::after {
  transform: rotate(-90deg);
}

.semester-panel {
  padding: 12px;
}

.course-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  background: var(--content);
}

.course-card h4 {
  margin: 0;
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.28rem;
}

.course-card p {
  margin: 8px 0 0;
  color: var(--text);
}

.coursework {
  padding-top: 28px;
  padding-bottom: 30px;
}

.coursework-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 30px 26px;
}

.coursework-category {
  min-width: 0;
}

.coursework-category h3 {
  margin: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.36rem;
  font-weight: 600;
  line-height: 1.2;
}

.coursework-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.coursework-list li {
  position: relative;
  margin: 0;
  padding: 7px 0 7px 14px;
  color: var(--text);
  transition: color 160ms ease;
}

.coursework-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 7px;
  color: var(--muted);
}

.coursework-list li:hover {
  color: var(--accent);
}

.photo-gallery {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 12px;
}

.photo-item {
  grid-column: span 4;
  margin: 0;
}

.photo-item--wide {
  grid-column: span 8;
}

.photo-item--tall {
  grid-row: span 2;
}

.photo-item img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel) 30%, var(--content) 70%);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.photo-item--tall img {
  aspect-ratio: 3 / 4;
}

.photo-item figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.recording-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.recording-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  background: var(--content);
}

.recording-embed-wrap {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  background: color-mix(in srgb, var(--panel) 25%, var(--content) 75%);
}

.recording-embed-wrap .instagram-media {
  width: 100% !important;
  min-width: 0 !important;
}

.recording-card h3 {
  margin: 12px 0 0;
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.28rem;
}

.recording-date {
  margin: 4px 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.recording-note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.93rem;
}

.contact-panel-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.contact-panel {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: var(--content);
}

.contact-panel h3 {
  margin: 0;
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.28rem;
}

.contact-panel p,
.contact-panel li {
  color: #3a3834;
}

.contact-panel a {
  color: var(--accent);
}

.mobile-overlay {
  display: none;
}

.menu-toggle {
  display: none;
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 40;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--content);
  width: 44px;
  height: 44px;
  padding: 8px;
  cursor: pointer;
}

.menu-toggle__line {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background-color: var(--text);
}

@media (max-width: 900px) {
  .content {
    padding: 62px 32px;
  }

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

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

  .home-hero__photo-wrap {
    max-width: 340px;
  }

  .project-grid,
  .interest-grid,
  .recording-grid,
  .contact-panel-grid {
    grid-template-columns: 1fr;
  }

  .coursework-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .photo-item,
  .photo-item--wide {
    grid-column: span 6;
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: block;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 220ms ease;
    box-shadow: none;
  }

  .content {
    margin-left: 0;
    padding: 88px 20px 36px;
  }

  .mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(22, 20, 17, 0.34);
    z-index: 20;
    opacity: 0;
    visibility: hidden;
    transition: opacity 220ms ease, visibility 220ms ease;
  }

  body.nav-open .sidebar {
    transform: translateX(0);
    box-shadow: 14px 0 30px rgba(10, 8, 6, 0.16);
  }

  body.nav-open .mobile-overlay {
    display: block;
    opacity: 1;
    visibility: visible;
  }

  .photo-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .photo-item,
  .photo-item--wide {
    grid-column: span 1;
  }

  .photo-item img,
  .photo-item--tall img {
    aspect-ratio: 4 / 3;
  }

  .coursework-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

}