/* ============================================================
   PORTFOLIO STYLESHEET
   ------------------------------------------------------------
   This one file controls the look of every page. You should
   not need to touch this file at all — all the text/photo
   edits happen inside the .html files. But if you ever want to
   change the accent color or fonts, the values are all named
   here at the top under ":root".
   ============================================================ */

:root {
  /* ---- Colors ---- */
  --bg:          #FAF9F5;   /* main page background (warm paper white) */
  --bg-card:     #F1EEE6;   /* slightly darker background for cards/panels */
  --ink:         #1C1B18;   /* main text color (near-black) */
  --ink-soft:    #55524A;   /* secondary/paragraph text */
  --ink-faint:   #918D80;   /* captions, meta text */
  --accent:      #2B3A67;   /* deep indigo — links, headings accents */
  --accent-warm: #A97C50;   /* brass/copper — small decorative accents */
  --line:        #DEDACE;   /* hairline borders/dividers */

  /* ---- Type ---- */
  --font-display: "Fraunces", Georgia, serif;
  --font-body:    "Inter", -apple-system, Helvetica, Arial, sans-serif;
  --font-mono:    "IBM Plex Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
}
a:hover { text-decoration-color: var(--accent); }

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 0.5em 0;
  font-weight: 600;
}

p { margin: 0 0 1em 0; }

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 28px;
}

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

header.site-header {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
  background: var(--bg);
}

header.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.site-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}
.site-name span { color: var(--accent-warm); }

nav.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-decoration: none;
  margin-left: 26px;
}
nav.site-nav a:first-child { margin-left: 0; }
nav.site-nav a:hover, nav.site-nav a.active { color: var(--accent); }

/* ---------------- Hero (Home page) ---------------- */

.hero {
  padding: 72px 0 56px 0;
}

.hero .wrap {
  display: flex;
  align-items: center;
  gap: 56px;
}

.hero-text { flex: 1.3; min-width: 260px; }
.hero-photo { flex: 1; min-width: 200px; max-width: 280px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-warm);
  margin-bottom: 14px;
  display: block;
}

.hero-text h1 {
  font-size: 2.6rem;
  margin-bottom: 6px;
}

.hero-role {
  font-family: var(--font-body);
  color: var(--ink-soft);
  font-size: 1.05rem;
  margin-bottom: 22px;
}

.hero-vision {
  color: var(--ink-soft);
  font-size: 1.04rem;
  max-width: 46ch;
}

.hero-buttons { margin-top: 26px; }

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 11px 20px;
  border: 1px solid var(--ink);
  color: var(--ink);
  margin-right: 12px;
  margin-bottom: 10px;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: var(--ink); color: var(--bg); }
.btn.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.btn.btn-primary:hover { background: var(--ink); border-color: var(--ink); }

/* photo frame with corner "figure" ticks, like a caption marker */
.photo-frame {
  position: relative;
  padding: 10px;
}
.photo-frame img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--bg-card);
}
.photo-frame::before, .photo-frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--accent-warm);
}
.photo-frame::before {
  top: 0; left: 0;
  border-top: 2px solid var(--accent-warm);
  border-left: 2px solid var(--accent-warm);
}
.photo-frame::after {
  bottom: 0; right: 0;
  border-bottom: 2px solid var(--accent-warm);
  border-right: 2px solid var(--accent-warm);
}
.photo-caption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
  margin-top: 10px;
  text-align: center;
}

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

section.block {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 10px;
}

.section-head h2 { font-size: 1.5rem; }

.section-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

.section-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------------- Research cards ---------------- */

.research-item {
  display: flex;
  gap: 26px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  align-items: flex-start;
}
.research-item:first-child { border-top: none; padding-top: 0; }

.research-item .research-figure {
  flex: 0 0 180px;
}
.research-item .research-figure img {
  background: var(--bg-card);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.research-item .research-body { flex: 1; min-width: 200px; }
.research-item h3 { font-size: 1.15rem; margin-bottom: 8px; }
.research-item p { color: var(--ink-soft); }

/* ---------------- Publications (bibliography style) ---------------- */

.pub-year {
  font-family: var(--font-mono);
  color: var(--accent-warm);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin: 30px 0 12px 0;
  border-bottom: 1px solid var(--line);
  padding-bottom: 6px;
}
.pub-year:first-child { margin-top: 0; }

ol.pub-list {
  list-style: none;
  counter-reset: pub-counter;
  margin: 0;
  padding: 0;
}

.pub-entry {
  counter-increment: pub-counter;
  position: relative;
  padding: 12px 0 12px 42px;
  border-top: 1px solid var(--line);
}
.pub-entry:first-child { border-top: none; }

.pub-entry::before {
  content: "[" counter(pub-counter) "]";
  position: absolute;
  left: 0;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-faint);
}

.pub-title {
  font-weight: 600;
  color: var(--ink);
}
.pub-meta {
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.pub-tags a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-right: 14px;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}
.pub-tags { margin-top: 6px; }

/* ---------------- Contact page ---------------- */

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.contact-list li {
  display: flex;
  gap: 18px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.contact-list li:first-child { border-top: none; }
.contact-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--ink-faint);
  width: 110px;
  flex-shrink: 0;
}

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

footer {
  border-top: 1px solid var(--line);
  padding: 30px 0 50px 0;
  margin-top: 20px;
}
footer p {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin: 0;
}

/* ---------------- Responsive ---------------- */

@media (max-width: 680px) {
  .hero .wrap { flex-direction: column-reverse; }
  .hero-photo { max-width: 200px; }
  .hero-text h1 { font-size: 2.1rem; }
  .research-item { flex-direction: column; }
  .research-item .research-figure { flex: none; width: 140px; }
  nav.site-nav a { margin-left: 16px; }
}