/* =====================================================
   Jhankar Saxena — personal site
   Aesthetic: Stanford / academic researcher (light, serif,
   cardinal accent, generous whitespace).
   ===================================================== */

:root {
  --bg: #ffffff;
  --bg-soft: #fafaf7;
  --text: #1a1a1a;
  --text-soft: #5a5a5a;
  --rule: #e6e3dc;
  --link: #8c1515;          /* Stanford cardinal */
  --link-hover: #5a0e0e;
  --max: 720px;

  --serif: "Crimson Pro", Charter, "Bitstream Charter", "Sitka Text",
    Cambria, Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  font-feature-settings: "kern", "liga", "onum";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
}

@media (min-width: 720px) {
  main {
    padding: 5rem 2rem 3rem;
  }
}

/* ---------- links ---------- */

a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}

a:hover,
a:focus-visible {
  color: var(--link-hover);
  border-bottom-color: currentColor;
}

a:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- intro / hero ---------- */

.intro {
  display: flex;
  gap: 1.75rem;
  align-items: flex-start;
  margin-bottom: 2.25rem;
}

.photo-wrap {
  flex: 0 0 auto;
}

.photo {
  width: 132px;
  height: 132px;
  border-radius: 6px;
  object-fit: cover;
  display: block;
  background: var(--bg-soft);
  border: 1px solid var(--rule);
}

.photo.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 2.4rem;
  letter-spacing: 0.02em;
  color: #877f6f;
  background: linear-gradient(135deg, #f5f1e8 0%, #ebe2cf 100%);
}

.intro-text {
  flex: 1 1 auto;
  min-width: 0;
}

h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 2rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.25rem;
  color: #000;
}

.affiliation {
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--text-soft);
  margin: 0 0 0.85rem;
  letter-spacing: 0.01em;
}

.lede {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.quicklinks {
  font-family: var(--sans);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.1rem;
}

.quicklinks a {
  padding: 0.15rem 0;
}

@media (max-width: 540px) {
  .intro {
    flex-direction: column;
    gap: 1.25rem;
  }
  .photo {
    width: 110px;
    height: 110px;
  }
  h1 {
    font-size: 1.7rem;
  }
}

/* ---------- section nav ---------- */

.section-nav {
  display: flex;
  gap: 1.75rem;
  padding: 0.7rem 0;
  margin: 1rem 0 2.25rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

.section-nav a {
  color: var(--text);
  border-bottom: none;
}

.section-nav a:hover,
.section-nav a:focus-visible {
  color: var(--link);
}

/* ---------- sections ---------- */

section {
  margin: 0 0 2.75rem;
  scroll-margin-top: 1.5rem;
}

h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.005em;
  margin: 0 0 1rem;
  color: #000;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.35rem;
}

h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0 0 0.15rem;
  color: #000;
}

section p {
  margin: 0 0 0.9rem;
}

ul.interests {
  margin: 0.25rem 0 1rem 0;
  padding-left: 1.25rem;
}

ul.interests li {
  margin-bottom: 0.2rem;
}

ul.interests strong {
  font-weight: 600;
}

em {
  font-style: italic;
  color: #2a2a2a;
}

/* ---------- projects ---------- */

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

.project {
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
}

.project:first-child {
  padding-top: 0.25rem;
}

.project:last-child {
  border-bottom: none;
}

.project .meta {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--text-soft);
  margin: 0.1rem 0 0.5rem;
  letter-spacing: 0.01em;
}

.proj-links {
  font-family: var(--sans);
  font-size: 0.9rem;
  margin: 0.4rem 0 0;
}

.dot {
  color: var(--text-soft);
  margin: 0 0.55rem;
}

/* ---------- footer ---------- */

footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--text-soft);
  border-top: 1px solid var(--rule);
}

footer p {
  margin: 1rem 0 0;
}

@media (min-width: 720px) {
  footer {
    padding: 2rem 2rem 4rem;
  }
}

/* ---------- selection ---------- */

::selection {
  background: rgba(140, 21, 21, 0.18);
  color: var(--text);
}