/* ============================================================
   Emily J. Herron — Academic Site
   Editorial / refined aesthetic
   Palette: deep ink, warm cream, rust accent
   ============================================================ */

:root {
  --ink: #1a1816;
  --ink-soft: #2d2a26;
  --ink-mute: #5a554f;
  --ink-faint: #8a847c;
  --rule: #d8d1c4;
  --rule-soft: #ebe5d8;
  --cream: #f4ede0;
  --cream-soft: #faf5e9;
  --paper: #fbf8f1;
  --accent: #b04a2c;          /* warm rust */
  --accent-deep: #8a3820;
  --accent-soft: #e8b9a8;

  --font-display: 'Fraunces', 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;

  --max-width: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f1ebde;
    --ink-soft: #d8d2c4;
    --ink-mute: #a39e93;
    --ink-faint: #6b6760;
    --rule: #3a3631;
    --rule-soft: #2a2723;
    --cream: #1f1c18;
    --cream-soft: #25221d;
    --paper: #161412;
    --accent: #d97a55;
    --accent-deep: #b04a2c;
    --accent-soft: #4a2a1e;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  font-feature-settings: 'ss01', 'cv11';
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: var(--paper); }

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
  z-index: 100;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; }

/* ============================================================
   PAPER TEXTURE BACKGROUND
   ============================================================ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, var(--cream-soft) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--cream-soft) 0%, transparent 50%);
  opacity: 0.4;
  pointer-events: none;
  z-index: -1;
}

/* ============================================================
   HEADER / HERO
   ============================================================ */
.hero {
  padding: clamp(2.5rem, 6vw, 5rem) var(--gutter) clamp(2rem, 4vw, 3.5rem);
  max-width: var(--max-width);
  margin: 0 auto;
  border-bottom: 1px solid var(--rule);
  position: relative;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 2.5rem;
}

.hero-meta::before {
  content: '';
  width: 2.5rem;
  height: 1px;
  background: var(--accent);
}

.hero-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(3rem, 9vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--ink);
  font-variation-settings: 'opsz' 144, 'SOFT' 30;
  margin-bottom: 1.5rem;
}

.hero-name em {
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}

.hero-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  color: var(--ink-soft);
  line-height: 1.4;
  max-width: 42rem;
  margin-bottom: 0.5rem;
  font-variation-settings: 'opsz' 14;
}

.hero-affiliation {
  font-size: 0.95rem;
  color: var(--ink-mute);
  margin-bottom: 2rem;
}

.hero-affiliation a {
  color: var(--ink-mute);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: color 0.2s, border-color 0.2s;
}

.hero-affiliation a:hover { color: var(--accent); border-color: var(--accent); }

/* Contact strip */
.contact-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0 2rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule-soft);
}

.contact-strip a, .contact-strip span {
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.contact-strip a::after {
  content: '';
  position: absolute;
  bottom: 0.2rem;
  left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.contact-strip a:hover { color: var(--accent); }
.contact-strip a:hover::after { transform: scaleX(1); }

.contact-strip .sep {
  color: var(--ink-faint);
  padding: 0;
  font-weight: 300;
}

/* ============================================================
   MAIN LAYOUT — asymmetric sidebar grid
   ============================================================ */
.main-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) var(--gutter) clamp(4rem, 8vw, 6rem);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

@media (max-width: 820px) {
  .main-grid { grid-template-columns: 1fr; gap: 0; }
}

/* ============================================================
   SIDEBAR NAV (sticky)
   ============================================================ */
.sidenav {
  position: sticky;
  top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

@media (max-width: 820px) {
  .sidenav {
    position: static;
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--rule);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.5rem;
  }
}

.sidenav-label {
  color: var(--ink-faint);
  margin-bottom: 1rem;
  font-size: 0.65rem;
}

@media (max-width: 820px) { .sidenav-label { display: none; } }

.sidenav ul { list-style: none; }
.sidenav li { margin-bottom: 0.6rem; }

.sidenav a {
  color: var(--ink-mute);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  transition: color 0.2s;
  position: relative;
  padding-left: 0;
}

.sidenav a .num {
  color: var(--ink-faint);
  font-size: 0.65rem;
}

.sidenav a:hover { color: var(--ink); }
.sidenav a.active { color: var(--accent); }
.sidenav a.active .num { color: var(--accent); }

/* ============================================================
   CONTENT SECTIONS
   ============================================================ */
main { min-width: 0; }

section { margin-bottom: clamp(3rem, 6vw, 5rem); }
section:last-child { margin-bottom: 0; }

.section-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--rule);
}

.section-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.65rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-variation-settings: 'opsz' 30;
}

/* ABOUT */
.about-lead {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
  font-variation-settings: 'opsz' 24;
}

.about-lead .drop {
  font-family: var(--font-display);
  float: left;
  font-size: 3.8em;
  line-height: 0.85;
  padding: 0.1em 0.1em 0 0;
  font-weight: 600;
  color: var(--accent);
  font-variation-settings: 'opsz' 144;
}

.about-body p { margin-bottom: 1rem; color: var(--ink-soft); }
.about-body a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
  transition: background 0.2s;
}
.about-body a:hover { background: var(--accent-soft); }

/* RESEARCH FOCUS — pill list */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.focus-card {
  padding: 1.5rem 1.25rem;
  background: var(--cream-soft);
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.focus-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 6px 24px -10px rgba(176, 74, 44, 0.25);
}

.focus-card::before {
  content: attr(data-num);
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ink-faint);
}

.focus-card h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--ink);
  margin-bottom: 0.5rem;
  font-variation-settings: 'opsz' 14;
}

.focus-card p {
  font-size: 0.88rem;
  color: var(--ink-mute);
  line-height: 1.5;
}

/* PROJECTS */
.project {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  padding: 1.5rem 0;
  border-bottom: 1px dotted var(--rule);
  transition: padding 0.2s;
}

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

.project-header {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.project-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
}

@media (prefers-color-scheme: dark) {
  .project-tag { color: var(--paper); }
}

.project-desc {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* PUBLICATIONS */
.pub-group-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 2rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--rule-soft);
}
.pub-group-label:first-child { margin-top: 0; }

.pub {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.5rem 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px dotted var(--rule);
  align-items: baseline;
}

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

.pub-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
  padding-top: 0.15rem;
}

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

.pub-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 0.3rem;
  letter-spacing: -0.005em;
}

.pub-title a {
  color: inherit;
  text-decoration: none;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 0% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.3s;
}

.pub-title a:hover { background-size: 100% 1px; }

.pub-authors {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 0.2rem;
}

.pub-authors .self {
  font-weight: 600;
  color: var(--ink);
}

.pub-venue {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--ink-mute);
  font-variation-settings: 'opsz' 14;
}

.pub-meta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.pub-meta a, .pub-meta span {
  color: var(--ink-mute);
  text-decoration: none;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.pub-meta a:hover { color: var(--accent); border-color: var(--accent); background: var(--cream-soft); }

.pub-meta .citations { color: var(--accent); border-color: var(--accent-soft); }

.first-author {
  position: relative;
}

.first-author::before {
  content: '';
  position: absolute;
  left: -0.6rem;
  top: 0.5rem;
  width: 3px;
  height: calc(100% - 1.5rem);
  background: var(--accent);
}

@media (max-width: 820px) {
  .first-author::before { left: -0.4rem; }
}

/* EXPERIENCE */
.role {
  padding: 1.5rem 0;
  border-bottom: 1px dotted var(--rule);
  display: grid;
  grid-template-columns: minmax(100px, 140px) 1fr;
  gap: 1.5rem;
}

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

@media (max-width: 600px) {
  .role { grid-template-columns: 1fr; gap: 0.5rem; }
}

.role-dates {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
  padding-top: 0.3rem;
}

.role-org {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
  margin-bottom: 0.15rem;
}

.role-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.role-desc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.role-desc ul {
  list-style: none;
  padding-left: 0;
}

.role-desc li {
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.35rem;
}

.role-desc li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* EDUCATION — uses .role */

/* COLUMNS for awards / service */
.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
}

.col-block h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-variation-settings: 'opsz' 14;
}

.col-block ul {
  list-style: none;
  padding-left: 0;
}

.col-block li {
  padding: 0.5rem 0;
  border-bottom: 1px dotted var(--rule-soft);
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
}

.col-block li:last-child { border-bottom: none; }

.col-block li .year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-faint);
  margin-left: 0.5rem;
}

/* PRESENTATIONS list */
.pres-list {
  list-style: none;
  padding: 0;
}

.pres-list li {
  padding: 1rem 0;
  border-bottom: 1px dotted var(--rule);
}

.pres-list li:last-child { border-bottom: none; }

.pres-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  color: var(--ink);
  margin-bottom: 0.2rem;
}

.pres-venue {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.88rem;
  color: var(--ink-mute);
  font-variation-settings: 'opsz' 14;
}

/* SKILLS — tag cloud */
.skill-group { margin-bottom: 1.5rem; }
.skill-group:last-child { margin-bottom: 0; }

.skill-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 0.6rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.3rem 0.7rem;
  background: var(--cream-soft);
  color: var(--ink-soft);
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
  transition: all 0.2s;
}

.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem var(--gutter) 3rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

footer .colophon {
  font-style: italic;
  font-family: var(--font-display);
  font-variation-settings: 'opsz' 14;
  letter-spacing: 0;
  font-size: 0.85rem;
}

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .hero-name, .hero-title, .hero-affiliation, .contact-strip {
    opacity: 0;
    animation: rise 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
  }
  .hero-name { animation-delay: 0.05s; }
  .hero-title { animation-delay: 0.25s; }
  .hero-affiliation { animation-delay: 0.4s; }
  .contact-strip { animation-delay: 0.55s; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Print */
@media print {
  body { background: white; color: black; }
  .sidenav, .skip-link, footer .meta { display: none; }
  .main-grid { grid-template-columns: 1fr; }
  a { color: black; text-decoration: underline; }
}