/* Gabriel Abreu — academic personal site */

:root {
  --bg: #ffffff;
  --text: #202124;
  --muted: #666a70;
  --light: #8a8f98;
  --line: #e7e8ea;
  --accent: #174ea6;
  --accent-hover: #0b3d91;
  --tag-bg: #f4f5f6;
  --max-width: 920px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

/* NAVIGATION */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.nav {
  min-height: 75px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 42px;
  width: 100%;
}

.nav nav a {
  color: var(--muted);
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.nav nav a:hover {
  color: var(--text);
  text-decoration: none;
}
/* HERO */

.hero {
  padding-top: 50px;
  padding-bottom: 50px;
}

#about {
  scroll-margin-top: 400px;
}

.hero-photo {
    margin-bottom: 40px;
}
.hero-photo img {
  width: 90%;
  height: 300px;
  object-fit: cover;
  object-position: center 80%;
  border-radius: 6px;
  display: block;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 8px;
  font-size: clamp(44px, 7vw, 70px);
  line-height: 1.02;
  letter-spacing: -0.055em;
  font-weight: 700;
}

.subtitle {
  margin-bottom: 27px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.5;
}


.intro {
  max-width: none; /* Changed from 720px */
  margin-bottom: 30px;
  font-size: 19px;
  line-height: 1.65;
  color: #3f4247;
}

.links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.links a {
  font-size: 14px;
  font-weight: 550;
}

.links .button {
  padding: 7px 15px;
  border: 1px solid var(--text);
  border-radius: 4px;
  color: var(--text);
}

.links .button:hover {
  background: var(--text);
  color: white;
  text-decoration: none;
}

/* SECTIONS */

.section {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 44px;
  padding-top: 78px;
  padding-bottom: 78px;
  border-top: 1px solid var(--line);
}

.section-label {
  padding-top: 4px;
  color: var(--light);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.section-content {
  min-width: 0;
}

.section-content > p {
  max-width: 720px;
}

.section-content p {
  color: #4d5157;
}

.section-content p:last-child {
  margin-bottom: 0;
}

/* HEADINGS */

h2 {
  margin-bottom: 7px;
  font-size: 21px;
  line-height: 1.35;
  letter-spacing: -0.02em;
  font-weight: 650;
}

.affiliation {
  margin-bottom: 12px;
  color: var(--muted) !important;
  font-size: 14px;
}

.degree {
  margin-bottom: 8px;
  color: var(--text) !important;
  font-weight: 500;
}

/* RESEARCH */

.research-item {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 25px;
  padding-bottom: 42px;
}

.research-item:last-child {
  padding-bottom: 0;
}

.research-meta,
.timeline-date,
.education-date {
  color: var(--light);
  font-size: 13px;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}

.project-links {
  display: flex;
  gap: 18px;
  margin-top: 8px;
}

.project-links a {
  font-size: 14px;
  font-weight: 600;
}

/* EXPERIENCE / EDUCATION */

.timeline,
.education {
  display: grid;
  gap: 34px;
}

.timeline-item,
.education-item {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 25px;
}

.timeline-item p,
.education-item p {
  margin-bottom: 0;
}

.timeline-item h2,
.education-item h2 {
  margin-bottom: 4px;
}


/* NEWS */

.news {
  display: grid;
  gap: 14px;
}

.news-item {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 25px;
}

.news-item > span {
  color: var(--light);
  font-size: 13px;
}

.news-item p {
  margin-bottom: 0;
}

/* FOOTER */

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 25px;
  padding-bottom: 40px;
  border-top: 1px solid var(--line);
  color: var(--light);
  font-size: 12px;
}

.footer p {
  margin: 0;
}

/* RESPONSIVE */

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 34px), var(--max-width));
  }

  .site-header {
    position: static;
  }

  .nav {
    min-height: auto;
    padding-top: 17px;
    padding-bottom: 17px;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
  }

  .nav nav {
    display: flex;
    gap: 14px;
  }

  .nav nav a {
    font-size: 13px;
  }

  .hero {
    padding-top: 52px;
    padding-bottom: 60px;
  }

  h1 {
    font-size: 48px;
  }

  .subtitle {
    font-size: 18px;
  }

  .intro {
    font-size: 17px;
  }

  .section {
    display: block;
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .section-label {
    margin-bottom: 27px;
  }

  .research-item,
  .timeline-item,
  .education-item {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .research-meta,
  .timeline-date,
  .education-date {
    margin-bottom: 2px;
  }

  .research-item {
    padding-bottom: 35px;
  }

  .footer {
    padding-bottom: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
  }
}
/* More about me */

/* MORE ABOUT ME */

.more-link {
  padding-top: 35px;
  padding-bottom: 75px;
  text-align: center;
  border-top: 1px solid var(--line);
}

.more-link a {
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.more-link a:hover {
  color: var(--accent);
  text-decoration: none;
}