:root {
  /* Warm, editorial neutrals — ink on paper */
  --paper: #e8dfd5; /* page background */
  --paper-soft: #f1ebe3; /* lighter band */
  --card: #fbf8f4; /* card surface */
  --ink: #2c2620; /* primary text (near-espresso) */
  --espresso: #3f352c; /* deep brown */
  --ink-dim: #6f6256; /* secondary text */
  --ink-faint: #9c8d7f; /* tertiary / meta */
  --taupe: #b6a79e;
  --khaki: #b0a18c;

  /* The two worlds, in serious tones */
  --dna: #3f352c; /* espresso : DNA */
  --dna-2: #6b5a45; /* lighter brown */
  --wave: #9b876e; /* warm taupe : brain-wave */
  --wave-2: #b6a79e;

  --line: rgba(63, 53, 44, 0.16);
  --line-soft: rgba(63, 53, 44, 0.08);
  --radius: 16px;
  --maxw: 1120px;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Soft warm backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 50% at 15% 10%, rgba(255, 255, 255, 0.5), transparent 70%),
    radial-gradient(55% 50% at 88% 18%, rgba(182, 167, 158, 0.28), transparent 70%),
    radial-gradient(80% 60% at 50% 110%, rgba(63, 53, 44, 0.06), transparent 70%);
}

a {
  color: inherit;
  text-decoration: none;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 56px);
  backdrop-filter: blur(8px);
  background: linear-gradient(to bottom, rgba(232, 223, 213, 0.92), rgba(232, 223, 213, 0));
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--espresso);
}

.nav__mark {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--espresso), var(--wave) 60%, var(--taupe));
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 34px);
  font-size: 0.92rem;
  color: var(--ink-dim);
}

.nav__links a {
  position: relative;
  padding: 4px 0;
  transition: color 0.25s ease;
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1.5px;
  background: var(--espresso);
  transition: width 0.3s ease;
}

.nav__links a:hover {
  color: var(--ink);
}

.nav__links a:hover::after {
  width: 100%;
}

.nav__cv {
  padding: 6px 16px !important;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink) !important;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.nav__cv::after {
  display: none;
}

.nav__cv:hover {
  border-color: var(--espresso);
  background: rgba(63, 53, 44, 0.04);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0 clamp(20px, 6vw, 80px);
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding-top: 80px;
}

.hero__eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 0.78rem;
  color: var(--ink-dim);
  margin-bottom: 22px;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.8rem, 8vw, 5.4rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--espresso);
}

.hero__accent {
  font-style: italic;
  color: var(--ink-dim);
}

.hero__lede {
  margin-top: 26px;
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  color: var(--ink-dim);
  max-width: 540px;
}

.hero__lede strong {
  color: var(--ink);
  font-weight: 600;
}

.hero__cta {
  margin-top: 38px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.25s ease,
    border-color 0.25s ease;
}

.btn--primary {
  color: var(--paper-soft);
  background: var(--espresso);
  box-shadow: 0 6px 20px rgba(63, 53, 44, 0.2);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(63, 53, 44, 0.28);
}

.btn--ghost {
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.35);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  border-color: var(--espresso);
  background: rgba(255, 255, 255, 0.6);
}

/* ---------- Scroll cue ---------- */
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 1.5px solid var(--ink-faint);
  border-radius: 14px;
  z-index: 2;
}

.hero__scroll span {
  position: absolute;
  left: 50%;
  top: 9px;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--ink-dim);
  animation: scrollPulse 1.8s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% { opacity: 0; transform: translateY(0); }
  40% { opacity: 1; }
  100% { opacity: 0; transform: translateY(14px); }
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(72px, 11vw, 140px) clamp(20px, 6vw, 40px);
}

.section__kicker {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 0.76rem;
  color: var(--wave);
  margin-bottom: 14px;
}

.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.5vw, 2.9rem);
  letter-spacing: -0.02em;
  margin-bottom: 40px;
  color: var(--espresso);
}

/* About */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 5vw, 60px);
}

.about__lead {
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  color: var(--ink);
  font-weight: 500;
}

.about__body {
  color: var(--ink-dim);
  font-size: 1.05rem;
}

/* Research cards */
.research__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}

.card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 50px rgba(63, 53, 44, 0.16);
}

.card--dna:hover { border-color: var(--espresso); }
.card--wave:hover { border-color: var(--wave); }

.card__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.card__body {
  position: relative;
  z-index: 2;
  padding: 28px;
  background: linear-gradient(to top, var(--card) 32%, rgba(251, 248, 244, 0.85) 60%, transparent);
}

.card__tag {
  font-family: var(--font-display);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
}

.card--dna .card__tag { color: var(--espresso); }
.card--wave .card__tag { color: var(--wave); }

.card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  margin: 8px 0 10px;
  color: var(--espresso);
}

.card__text {
  color: var(--ink-dim);
  font-size: 1rem;
  max-width: 44ch;
}

/* Experience / list */
.pub__list {
  list-style: none;
  border-top: 1px solid var(--line);
}

.pub {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 20px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.pub__year {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--wave);
}

.pub__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.18rem;
  color: var(--espresso);
  transition: color 0.2s ease;
}

a.pub__title:hover {
  color: var(--dna-2);
}

.pub__authors {
  color: var(--ink-dim);
  margin-top: 6px;
  font-size: 0.96rem;
}

.pub__authors strong {
  color: var(--ink);
}

.pub__venue {
  color: var(--ink-faint);
  font-size: 0.92rem;
  margin-top: 4px;
}

/* Projects */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project {
  display: flex;
  flex-direction: column;
  padding: 26px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.project:hover {
  transform: translateY(-5px);
  border-color: var(--espresso);
  box-shadow: 0 16px 38px rgba(63, 53, 44, 0.14);
}

.project__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  margin-bottom: 18px;
}

.project__dot[data-world="dna"] { background: var(--espresso); }
.project__dot[data-world="wave"] { background: var(--wave); }
.project__dot[data-world="both"] {
  background: linear-gradient(90deg, var(--espresso), var(--wave));
}

.project__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.22rem;
  margin-bottom: 8px;
  color: var(--espresso);
}

.project__text {
  color: var(--ink-dim);
  font-size: 0.98rem;
  flex: 1;
}

.project__meta {
  margin-top: 18px;
  font-size: 0.8rem;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}

/* Awards / static rows */
.writing__list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.post {
  display: grid;
  grid-template-columns: 110px 1fr 30px;
  align-items: center;
  gap: 16px;
  padding: 22px 8px;
  border-bottom: 1px solid var(--line);
  transition: padding 0.25s ease, background 0.25s ease;
}

.post:hover {
  padding-left: 18px;
  background: rgba(255, 255, 255, 0.4);
}

.post__date {
  color: var(--ink-faint);
  font-size: 0.88rem;
}

.post__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.12rem;
  color: var(--ink);
}

.post__arrow {
  color: var(--wave);
  text-align: right;
  transition: transform 0.25s ease;
}

.post:hover .post__arrow {
  transform: translateX(6px);
}

.post--static {
  grid-template-columns: 130px 1fr;
  cursor: default;
}

.post--static:hover {
  padding-left: 8px;
  background: transparent;
}

/* Contact */
.contact {
  text-align: center;
}

.contact__text {
  color: var(--ink-dim);
  font-size: 1.15rem;
  max-width: 560px;
  margin: 0 auto 34px;
}

.contact__links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  border-top: 1px solid var(--line);
  padding: 28px clamp(20px, 6vw, 56px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--ink-faint);
  font-size: 0.9rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .nav {
    flex-wrap: wrap;
    gap: 10px 0;
    padding-top: 14px;
    padding-bottom: 14px;
  }
  .nav__links {
    width: 100%;
    flex-wrap: wrap;
    gap: 14px 16px;
    font-size: 0.85rem;
  }
  .about__grid,
  .research__grid,
  .projects__grid {
    grid-template-columns: 1fr;
  }
  .pub {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .post {
    grid-template-columns: 90px 1fr 20px;
    gap: 10px;
  }
  .hero__inner { padding-top: 150px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__scroll span { animation: none; }
}