/* ===========================================================
   Shruti Bhimsaria — personal site
   Design: working-paper minimalism.
   Paper ground, forest-green accent (climate/econ association),
   Fraunces for display, Source Serif 4 for body, IBM Plex Mono
   for labels/metadata — the vocabulary of a research abstract.
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400&family=Source+Serif+4:ital,wght@0,400;0,500;0,600;1,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --paper: #F5F4EF;
  --paper-raised: #FBFAF7;
  --ink: #1A1A17;
  --ink-soft: #55534C;
  --ink-faint: #8A877C;
  --accent: #3F5D42;
  --accent-deep: #2C4230;
  --accent-tint: #E9EEE6;
  --rule: #DBD8CD;
  --max-w: 1140px;
  --side-pad: 5vw;
}

*{ box-sizing: border-box; }

img{ max-width: 100%; display: block; }

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a{ color: var(--accent-deep); text-decoration: none; }
a:hover{ text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.label{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

h1, h2, h3{
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 0;
}

/* ---------- Header / Nav ---------- */

.site-header{
  border-bottom: 1px solid var(--rule);
  padding: 28px var(--side-pad) 20px;
}

.header-inner{
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 28px;
}

.title-group{
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar{
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 15%;
  border: 1px solid var(--rule);
  flex-shrink: 0;
}

.site-title{
  font-family: 'Fraunces', Georgia, serif;
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.site-title:hover{ text-decoration: none; opacity: 0.75; }

nav.site-nav{
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

nav.site-nav a{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
}
nav.site-nav a:hover{
  color: var(--accent-deep);
  text-decoration: none;
  border-bottom-color: var(--accent);
}
nav.site-nav a.active{
  color: var(--accent-deep);
  border-bottom-color: var(--accent);
}

/* ---------- Layout ---------- */

main{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 56px var(--side-pad) 80px;
}

.rule{
  border: none;
  border-top: 1px solid var(--rule);
  margin: 40px 0;
}

/* ---------- Home / cover-page hero ---------- */

.paper-frame{
  border: 1px solid var(--rule);
  background: var(--paper-raised);
  padding: 44px 40px;
  border-radius: 2px;
}

.paper-kicker{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 26px;
}

.hero-top{
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 44px;
  margin-bottom: 26px;
}

.hero-text{ min-width: 0; }

.hero-photo{
  width: 208px;
  height: 208px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 15%;
  border: 1px solid var(--rule);
  flex-shrink: 0;
}

.hero-name{
  font-size: clamp(30px, 5.5vw, 50px);
  line-height: 1.08;
  margin: 0 0 14px;
}

.role-list{
  list-style: none;
  margin: 0;
  padding: 0;
}

.role-list li{
  font-family: 'Source Serif 4', serif;
  font-style: italic;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.5;
  padding-left: 16px;
  border-left: 2px solid var(--accent);
  margin-bottom: 9px;
}
.role-list li:last-child{ margin-bottom: 0; }

.abstract{
  color: var(--ink);
  font-size: 16.5px;
  margin-top: 0;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

.tags{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.tag{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--accent-deep);
  background: var(--accent-tint);
  border: 1px solid var(--rule);
  padding: 5px 10px;
  border-radius: 3px;
  white-space: nowrap;
}

/* ---------- Section blocks ---------- */

.section{ margin-top: 52px; }

.section-heading{
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 20px;
}

.section-heading .num{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
}

.section-heading h2{ font-size: 22px; }

.entry{
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 4px 24px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
}
.entry:last-child{ border-bottom: 1px solid var(--rule); }

.entry .when{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  padding-top: 3px;
}

.entry .what h3{
  font-size: 17px;
  font-weight: 500;
  margin-bottom: 4px;
}

.entry .what p{
  margin: 0;
  color: var(--ink-soft);
  font-size: 15.5px;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

@media (max-width: 560px){
  .entry{ grid-template-columns: 1fr; gap: 2px; }
  .entry .when{ padding-top: 0; }
}

/* ---------- Mobile pass ---------- */

@media (max-width: 640px){
  :root{ --side-pad: 5vw; }

  body{ font-size: 16px; }

  .site-header{ padding: 20px var(--side-pad) 16px; }
  main{ padding: 36px var(--side-pad) 60px; }

  .paper-frame{ padding: 28px 22px; }

  .paper-kicker{
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .hero-top{
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .hero-photo{
    width: 100px;
    height: 100px;
  }

  .role-list li{ font-size: 15px; }

  .tags{ gap: 6px; }
  .tag{ font-size: 11px; padding: 4px 8px; }

  .section{ margin-top: 40px; }
  .section-heading h2{ font-size: 19px; }

  .contact-list li{
    flex-direction: column;
    gap: 4px;
  }
  .contact-list .k{ width: auto; }

  nav.site-nav{ gap: 14px 18px; }
}

/* ---------- Footer ---------- */

.site-footer{
  border-top: 1px solid var(--rule);
  padding: 26px var(--side-pad) 40px;
}
.site-footer .footer-inner{
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
}

/* ---------- Misc components ---------- */

.btn{
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--paper-raised);
  background: var(--accent-deep);
  padding: 11px 18px;
  border-radius: 3px;
  border: 1px solid var(--accent-deep);
}
.btn:hover{
  background: var(--accent);
  border-color: var(--accent);
  text-decoration: none;
}

.contact-list{
  list-style: none;
  margin: 0;
  padding: 0;
}
.contact-list li{
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--rule);
}
.contact-list li:last-child{ border-bottom: 1px solid var(--rule); }
.contact-list .k{
  width: 110px;
  flex-shrink: 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  padding-top: 2px;
}

.note{
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  background: var(--accent-tint);
  border: 1px dashed var(--rule);
  padding: 10px 14px;
  border-radius: 3px;
  margin-bottom: 28px;
}

.cv-download{
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

/* ---------- Read more toggle ---------- */

details.more{
  margin-top: 4px;
}

details.more summary{
  list-style: none;
  cursor: pointer;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-deep);
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--accent);
}
details.more summary::-webkit-details-marker{ display: none; }
details.more summary:hover{ color: var(--accent); }

details.more summary::after{
  content: " \2193";
}
details.more[open] summary::after{
  content: " \2191";
}
details.more[open] summary{
  margin-bottom: 12px;
}

details.more .more-body p{
  margin: 0 0 10px;
}
details.more .more-body p:last-child{ margin-bottom: 0; }

.read-more{
  display: inline-block;
  margin-top: 6px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-deep);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--accent);
}
.read-more:hover{ color: var(--accent); text-decoration: none; }