:root {
  --ink: #17201b;
  --muted: #56645d;
  --paper: #f8f6f0;
  --pale: #e9f0e7;
  --line: #d6ded3;
  --accent: #315f43;
  --accent-dark: #244834;
  --sky: #dce8f2;
  --gold: #d9b44a;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  padding: 14px clamp(18px, 4vw, 52px);
  border-bottom: 1px solid rgba(23, 32, 27, 0.12);
  background: rgba(248, 246, 240, 0.94);
  backdrop-filter: blur(12px);
}

.brand {
  font-weight: 700;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  font-size: 0.95rem;
}

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

nav a:hover,
nav a:focus,
nav a.active {
  color: var(--accent-dark);
}

nav a.active {
  font-weight: 700;
}

.hero-page {
  min-height: calc(100vh - 64px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.8fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  padding: clamp(42px, 7vw, 84px) clamp(18px, 5vw, 72px);
  background:
    linear-gradient(90deg, rgba(248, 246, 240, 0.96), rgba(248, 246, 240, 0.74)),
    radial-gradient(circle at 86% 18%, var(--sky), transparent 34%),
    linear-gradient(135deg, var(--paper), #edf2ea);
}

.about-photo-hero {
  position: relative;
  min-height: clamp(420px, 62vh, 680px);
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: clamp(34px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
  background: var(--pale);
}

.about-cover-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.about-photo-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(23, 32, 27, 0.44), rgba(23, 32, 27, 0.16));
}

.about-hero-content {
  position: relative;
  z-index: 1;
  width: min(1040px, 100%);
  display: grid;
  grid-template-columns: minmax(240px, 360px) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 74px);
  align-items: center;
}

.about-profile-photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  display: block;
  object-fit: cover;
  object-position: 70% center;
  border: 6px solid var(--paper);
  border-radius: 8px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
}

.contact-info {
  display: grid;
  gap: 8px;
  width: min(420px, 100%);
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-style: normal;
}

.contact-info h2 {
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 1.35rem;
  line-height: 1.2;
}

.contact-info a {
  color: var(--accent-dark);
  font-weight: 700;
}

.hero-contact {
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(23, 32, 27, 0.58);
  color: var(--white);
  font-style: normal;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.18);
}

.hero-contact a {
  color: var(--white);
  font-weight: 700;
}

.about-title-card {
  color: var(--white);
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.42);
}

.about-title-card h1 {
  max-width: 700px;
  margin-bottom: 20px;
  font-size: clamp(3.2rem, 8vw, 7rem);
}

.about-title-card p {
  margin-bottom: 8px;
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  font-weight: 700;
}

.hero-copy,
.hero-photo-wrap,
.section-heading,
.content-page,
.page-strip {
  width: min(1120px, 100%);
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(1.75rem, 3.4vw, 3rem);
}

.hero-copy {
  justify-self: end;
}

.hero-photo-wrap {
  margin: 0;
}

.hero-photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  display: block;
  object-fit: cover;
  object-position: 70% center;
  border: 1px solid rgba(23, 32, 27, 0.12);
  border-radius: 8px;
  box-shadow: 0 26px 70px rgba(23, 32, 27, 0.18);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
figure {
  margin-top: 0;
}

h1 {
  max-width: 840px;
  margin-bottom: 22px;
  font-size: clamp(3.5rem, 9vw, 8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 26px;
  font-size: clamp(2rem, 4.8vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 14px;
  font-size: 1.35rem;
  line-height: 1.2;
}

.lede {
  max-width: 680px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  color: var(--white);
}

.page-strip,
.content-page {
  margin: 0 auto;
  padding: clamp(42px, 7vw, 84px) clamp(18px, 5vw, 72px);
}

.about-text-page {
  padding: clamp(42px, 7vw, 84px) clamp(18px, 5vw, 72px);
}

.about-text {
  width: min(900px, 100%);
  margin: 0 auto;
  color: var(--ink);
  font-size: clamp(1.12rem, 2vw, 1.34rem);
}

.about-text p {
  margin-bottom: 26px;
}

.about-text a {
  color: var(--accent-dark);
  font-weight: 700;
}

.cv-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  text-decoration: none;
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.tile {
  min-height: 180px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  text-decoration: none;
}

.tile span {
  display: block;
  margin-bottom: 14px;
  color: var(--accent-dark);
  font-size: 1.3rem;
  font-weight: 700;
}

.tile p {
  color: var(--muted);
}

.subpage-hero {
  min-height: 58vh;
  display: grid;
  align-items: end;
  padding: clamp(42px, 7vw, 84px) clamp(18px, 5vw, 72px);
  background-color: var(--pale);
  background-position: center;
  background-size: cover;
  border-bottom: 1px solid var(--line);
}

.subpage-copy {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding-top: 12vh;
}

.subpage-copy h1 {
  max-width: 980px;
  color: var(--white);
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.38);
}

.subpage-copy .eyebrow {
  color: var(--white);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

.research-hero-copy {
  position: relative;
  z-index: 1;
  width: min(860px, 100%);
  margin: 0 auto;
  color: var(--white);
  text-align: center;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.42);
}

.research-hero-copy p {
  margin: 0;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  line-height: 1.35;
  font-weight: 700;
}

.about-hero {
  background-image:
    linear-gradient(90deg, rgba(24, 36, 29, 0.64), rgba(24, 36, 29, 0.16)),
    url("assets/aboutme_cover.jpg");
}

.research-hero {
  background-image:
    linear-gradient(90deg, rgba(24, 36, 29, 0.68), rgba(24, 36, 29, 0.2)),
    url("assets/research_cover.jpg");
}

.teaching-hero {
  background-image:
    linear-gradient(90deg, rgba(24, 36, 29, 0.7), rgba(24, 36, 29, 0.24)),
    url("assets/teaching_cover.jpg");
}

.hobbies-hero {
  background-image:
    linear-gradient(90deg, rgba(24, 36, 29, 0.7), rgba(24, 36, 29, 0.22)),
    url("assets/hobbies_outdoors.jpg");
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.7fr);
  gap: clamp(28px, 6vw, 78px);
  align-items: start;
}

.body-copy {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.body-copy p {
  margin-bottom: 22px;
}

.info-panel,
.stacked-list article,
.project {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.info-panel {
  display: grid;
  gap: 14px;
  padding: 24px;
}

.info-panel h2,
.stacked-list h2 {
  margin-bottom: 6px;
  font-size: 1.35rem;
  line-height: 1.2;
}

.info-panel a {
  color: var(--accent-dark);
  font-weight: 700;
}

.info-panel p,
.stacked-list p {
  color: var(--muted);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 32px;
}

.project {
  display: grid;
  grid-template-columns: minmax(220px, 0.38fr) minmax(0, 1fr);
  gap: 24px 30px;
  padding: 24px;
}

.project img {
  width: 100%;
  aspect-ratio: 16 / 10;
  display: block;
  object-fit: cover;
  border-radius: 6px;
}

.project-heading {
  align-self: center;
}

.project h3 {
  margin: 0;
  font-size: clamp(1.45rem, 2.7vw, 2.2rem);
}

.project-meta {
  margin-top: 12px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 700;
}

.draft-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.project p:last-child {
  grid-column: 1 / -1;
  color: var(--muted);
  margin-bottom: 0;
  font-size: 1.02rem;
}

.conference-section {
  margin-top: clamp(42px, 7vw, 76px);
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.conference-section h2 {
  margin-bottom: 12px;
  font-size: clamp(1.75rem, 3.4vw, 3rem);
}

.conference-section p {
  color: var(--muted);
  font-size: 1.05rem;
}

.conference-list {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.conference-list article {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.conference-list article:first-child {
  border-top: 0;
  padding-top: 0;
}

.conference-list h3 {
  margin-bottom: 8px;
  font-size: clamp(1.2rem, 2.2vw, 1.65rem);
}

.conference-meta {
  margin-bottom: 8px;
  color: var(--accent-dark);
  font-weight: 700;
}

.stacked-list {
  display: grid;
  gap: 16px;
}

.stacked-list article {
  padding: 22px;
}

.teaching-page {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: clamp(42px, 7vw, 84px) clamp(18px, 5vw, 72px);
}

.teaching-title h1 {
  margin-bottom: clamp(28px, 5vw, 52px);
  font-size: clamp(2.5rem, 5.8vw, 4.8rem);
}

.teaching-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.36fr);
  gap: clamp(24px, 5vw, 58px);
  align-items: start;
}

.course-list {
  display: grid;
  gap: 22px;
}

.course {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.course h2 {
  margin-bottom: 8px;
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
  line-height: 1.18;
}

.course p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.course-term {
  margin-bottom: 12px;
  color: var(--accent-dark);
  font-size: 0.95rem;
  font-weight: 700;
}

.course-label {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.teaching-note {
  position: sticky;
  top: 96px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.teaching-note h2 {
  margin-bottom: 12px;
  font-size: clamp(1.25rem, 2.3vw, 1.75rem);
  line-height: 1.18;
}

.teaching-note p:not(.course-label) {
  margin-bottom: 18px;
  color: var(--muted);
}

.teaching-app-link {
  display: inline-block;
  color: var(--accent-dark);
  font-weight: 700;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.photo-grid figure {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
}

.photo-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  display: block;
  object-fit: cover;
}

figcaption {
  padding: 14px 16px;
  color: var(--accent-dark);
  font-weight: 700;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 28px clamp(18px, 4vw, 52px);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  background: var(--accent-dark);
  color: rgba(255, 255, 255, 0.78);
}

.site-footer a {
  color: var(--white);
  font-weight: 700;
}

@media (max-width: 980px) {
  .hero-page,
  .about-hero-content,
  .two-column,
  .teaching-layout,
  .project,
  .project-grid,
  .photo-grid,
  .tile-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    justify-self: start;
  }

  .hero-photo-wrap {
    width: min(430px, 100%);
  }

  .about-hero-content {
    width: min(520px, 100%);
  }

  .project img {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .teaching-note {
    position: static;
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .hero-page {
    min-height: auto;
  }

  .subpage-hero {
    min-height: 48vh;
  }

  .about-photo-hero {
    min-height: auto;
  }

  .about-profile-photo {
    width: min(320px, 86vw);
  }

  h1 {
    font-size: clamp(3rem, 16vw, 5rem);
  }
}