/* ============================================================
   TOKENS
   ============================================================ */
:root{
  --paper: #F6F5F0;
  --paper-dim: #EDEBE1;
  --ink: #1A1B1E;
  --ink-soft: #55564F;
  --ink-faint: #8A8B82;
  --teal: #1F5C57;
  --teal-dark: #133C38;
  --rust: #B5553A;
  --line: #D9D6C9;
  --line-strong: #B9B6A6;

  --serif-display: "Fraunces", "Iowan Old Style", serif;
  --serif-body: "Source Serif 4", Georgia, serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  --max: 1080px;
  --gutter: clamp(20px, 5vw, 64px);
}

:root[data-theme="dark"]{
  --paper: #16171A;
  --paper-dim: #1E2023;
  --ink: #ECEAE1;
  --ink-soft: #A6A79C;
  --ink-faint: #74756B;
  --teal: #5FB6AB;
  --teal-dark: #7FCBC0;
  --rust: #E2916C;
  --line: #32342F;
  --line-strong: #46483F;
}

body, .masthead, .section, .hero, .work-card, .comp-card, .colophon, .entry__body{
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

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

/* subtle paper grain, purely decorative */
.grain{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.035;
  mix-blend-mode: multiply;
  background-image:
    radial-gradient(circle at 20% 30%, #000 0.5px, transparent 0.5px),
    radial-gradient(circle at 60% 70%, #000 0.5px, transparent 0.5px);
  background-size: 3px 3px, 5px 5px;
}

a{ color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover{ color: var(--rust); }
a:focus-visible, button:focus-visible{
  outline: 2px solid var(--rust);
  outline-offset: 3px;
}

h1,h2,h3{ font-family: var(--serif-display); color: var(--ink); margin: 0; }

ul{ margin: 0; padding: 0; list-style: none; }

/* ============================================================
   MASTHEAD
   ============================================================ */
.masthead{
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px var(--gutter) 0;
}
.masthead__row{
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.masthead__row-right{
  display: flex;
  align-items: center;
  gap: 18px;
}

.theme-toggle{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.theme-toggle:hover{ color: var(--ink); }
.theme-toggle__track{
  position: relative;
  width: 34px;
  height: 16px;
  border: 1px solid var(--ink);
  border-radius: 9px;
  background: var(--paper-dim);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.theme-toggle__thumb{
  position: absolute;
  top: 1px;
  left: 1px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  transition: transform 0.3s ease;
}
.theme-toggle.is-dark .theme-toggle__thumb{ transform: translateX(18px); }
.theme-toggle__label{ min-width: 26px; text-align: left; }
.masthead__rule{
  height: 2px;
  background: var(--ink);
  margin: 10px 0 0;
}
.masthead__nav{
  display: flex;
  gap: 24px;
  padding: 12px 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}
.masthead__nav a{
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
}
.masthead__nav a:hover{ color: var(--rust); }
.masthead__nav a.is-active{ color: var(--ink); border-bottom: 2px solid var(--rust); padding-bottom: 2px; }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px var(--gutter) 40px;
}
.hero__identity{
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.hero__avatar{
  flex: 0 0 auto;
  width: 148px;
  height: 148px;
  border-radius: 50%;
  padding: 5px;
  background: linear-gradient(145deg, var(--teal), var(--rust));
}
.hero__avatar img{
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  display: block;
  border: 3px solid var(--paper);
  filter: grayscale(1) contrast(1.05);
  background: var(--paper-dim);
}
.hero__intro{ min-width: 0; }
.hero__tagline{
  max-width: 62ch;
  margin: 22px 0 0;
  font-size: 1.08rem;
  color: var(--ink-soft);
}
.hero__cta{
  display: flex;
  gap: 14px;
  margin-top: 26px;
  flex-wrap: wrap;
}
.btn{
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 2px;
  border: 1px solid var(--ink);
  transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
  display: inline-block;
}
.btn--primary{ background: var(--ink); color: var(--paper); }
.btn--primary:hover{ background: var(--teal-dark); border-color: var(--teal-dark); color: var(--paper); transform: translateY(-1px); }
.btn--ghost{ background: transparent; color: var(--ink); }
.btn--ghost:hover{ background: var(--ink); color: var(--paper); transform: translateY(-1px); }
.eyebrow{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--rust);
  margin: 0 0 14px;
}
.hero__title{
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.01em;
}
.hero__role{
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
  margin: 18px 0 0;
  letter-spacing: 0.01em;
}
.hero__dot{ color: var(--line-strong); }

.hero__grid{
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 48px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.hero__label{
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}
.hero__abstract p{
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 1.02rem;
}
.drop-cap::first-letter{
  font-family: var(--serif-display);
  font-size: 3.6em;
  float: left;
  line-height: 0.8;
  padding: 6px 8px 0 0;
  color: var(--teal-dark);
  font-weight: 600;
}
.cite a{
  font-family: var(--mono);
  font-size: 0.65em;
  color: var(--rust);
  text-decoration: none;
  border: 1px solid var(--rust);
  border-radius: 3px;
  padding: 0 4px;
  margin-left: 1px;
}

.hero__margin{
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-left: 24px;
  border-left: 1px dashed var(--line-strong);
}
.marginnote{
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.marginnote__num{
  font-family: var(--serif-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--teal-dark);
  line-height: 1;
}
.marginnote__label{
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-soft);
  line-height: 1.4;
}
.marginnote--pen .marginnote__label{
  color: var(--rust);
  transform: rotate(-1deg);
  display: inline-block;
}
.marginnote--pen .marginnote__num{
  color: var(--rust);
}


/* ============================================================
   SHARED SECTION HEAD
   ============================================================ */
.section{
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px var(--gutter);
  border-top: 1px solid var(--line);
}
.section__head{
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 28px;
}
.section__num{
  font-family: var(--mono);
  font-size: 13px;
  color: var(--rust);
}
.section__head h2{
  font-size: 1.7rem;
  font-weight: 500;
}
.section__note{
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  margin: -14px 0 26px;
}

/* ============================================================
   COMPETENCIES
   ============================================================ */
.comp-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.comp-card{
  background: var(--paper);
  padding: 22px 20px;
}
.comp-card__label{
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.comp-card li{
  font-size: 0.92rem;
  padding: 4px 0;
  color: var(--ink);
}

.lang-strip{
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.lang-strip__label{
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--rust);
  margin-right: 6px;
}
.lang-item em{
  font-style: normal;
  color: var(--teal-dark);
}
.lang-sep{ color: var(--line-strong); }

/* ============================================================
   WORK / PROJECTS
   ============================================================ */
.work-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.work-card{
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 30px 24px 26px;
  background: var(--paper-dim);
  border: 1px solid var(--line);
  border-radius: 6px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
}
.work-card::before{
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--rust));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.work-card:hover{
  transform: translateY(-6px);
  box-shadow: 0 22px 36px -22px rgba(20, 20, 18, 0.35);
  border-color: var(--ink);
}
.work-card:hover::before{ transform: scaleX(1); }

.work-card__num{
  position: absolute;
  top: 6px;
  right: 18px;
  font-family: var(--serif-display);
  font-size: 3.2rem;
  font-weight: 600;
  color: var(--line-strong);
  opacity: 0.55;
  line-height: 1;
  pointer-events: none;
  transition: color 0.3s ease, transform 0.3s ease;
}
.work-card:hover .work-card__num{ color: var(--teal); transform: scale(1.06); }

.work-card__icon{
  position: relative;
  z-index: 1;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: var(--paper);
  transition: background-color 0.3s ease, color 0.3s ease;
}
.work-card:hover .work-card__icon{ background: var(--ink); color: var(--paper); }

.work-card__title{
  position: relative;
  z-index: 1;
  font-size: 1.28rem;
  font-weight: 500;
  margin: 6px 0 0;
}
.work-card__desc{
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--ink-soft);
  flex: 1;
}
.work-card__tag{
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--teal-dark);
}
.work-card__links{
  display: flex;
  gap: 8px;
  margin-top: 4px;
}
.work-card__link{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}
.work-card__link:hover{
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}
.work-card__link--pdf:hover{
  color: var(--paper);
  background: var(--rust);
  border-color: var(--rust);
}

/* ============================================================
   EXPERIENCE / TIMELINE
   ============================================================ */
.timeline{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.entry{
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 28px;
}
.entry__date{
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  padding-top: 4px;
}
.entry__body{
  padding-left: 24px;
  border-left: 2px solid var(--teal);
}
.entry__body h3{
  font-size: 1.2rem;
  font-weight: 500;
}
.entry__org{
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--rust);
  margin: 4px 0 12px;
}
.entry__body ul{
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.entry__body li{
  position: relative;
  padding-left: 16px;
  font-size: 0.95rem;
  color: var(--ink);
}
.entry__body li::before{
  content: "—";
  position: absolute;
  left: 0;
  color: var(--ink-faint);
}

.timeline--compact{ gap: 22px; }
.timeline--compact .entry__body{ padding-bottom: 2px; }
.timeline--compact .entry__org{ margin-bottom: 0; }

/* ============================================================
   PUBLICATIONS / REF LIST
   ============================================================ */
.ref-list{
  counter-reset: refs;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.ref-list li{
  counter-increment: refs;
  position: relative;
  padding-left: 40px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.ref-list li::before{
  content: "[" counter(refs) "]";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal-dark);
}
.ref-list li p{ margin: 0; }
.ref-list em{ color: var(--ink); font-style: italic; }
.ref-list a{
  font-family: var(--mono);
  font-size: 0.88em;
}
.pub-highlight{
  margin-top: 6px !important;
  font-size: 0.85rem;
  font-style: italic;
  color: var(--rust);
}

/* ============================================================
   COLOPHON / FOOTER
   ============================================================ */
.colophon{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter) 48px;
}
.colophon__rule{
  height: 1px;
  background: var(--line);
}
.colophon__grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  padding: 48px 0 32px;
}
.colophon__grid h2{
  font-size: 1.6rem;
  margin: 6px 0 12px;
}
.colophon__grid p{
  color: var(--ink-soft);
  max-width: 40ch;
  margin: 0 0 20px;
}
.contact-btn{
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--paper);
  background: var(--teal-dark);
  padding: 12px 20px;
  border-radius: 2px;
  text-decoration: none;
  letter-spacing: 0.02em;
}
.contact-btn:hover{ background: var(--rust); color: var(--paper); }

.colophon__links{
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
  padding-top: 46px;
}
.colophon__links a{ color: var(--ink); text-decoration: none; }
.colophon__links a:hover{ color: var(--rust); }

.colophon__bottom{
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

/* ============================================================
   MOTION
   ============================================================ */
.reveal{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .reveal{ opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px){
  .comp-grid{ grid-template-columns: repeat(2, 1fr); }
  .work-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px){
  .hero__identity{ flex-direction: column; align-items: flex-start; gap: 20px; }
  .hero__avatar{ width: 108px; height: 108px; }
  .hero__grid{ grid-template-columns: 1fr; }
  .hero__margin{
    flex-direction: row;
    flex-wrap: wrap;
    border-left: none;
    border-top: 1px dashed var(--line-strong);
    padding-left: 0;
    padding-top: 20px;
    gap: 24px 28px;
  }
  .entry{ grid-template-columns: 1fr; gap: 8px; }
  .work-grid{ grid-template-columns: 1fr; }
  .entry__date{ padding-top: 0; }
  .comp-grid{ grid-template-columns: 1fr; }
  .colophon__grid{ grid-template-columns: 1fr; }
  .colophon__links{ padding-top: 0; }
}

@media (max-width: 480px){
  .masthead__row{ font-size: 10px; }
  .masthead__nav{ gap: 16px; }
}