:root {
  --bg:        #0d0d0f;
  --bg-card:   #141418;
  --border:    rgba(255,255,255,0.08);
  --cyan:      #13daf9;
  --cyan-dim:  rgba(19,218,249,0.15);
  --amber:     #f4c842;
  --off-white: #e8e8ec;
  --muted:     rgba(232,232,236,0.45);
  --mono:      'Courier New', Courier, monospace;
}

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

body {
  background: var(--bg);
  color: var(--off-white);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

.page { max-width: 900px; margin: 0 auto; padding: 3rem 1.5rem 6rem; }

/* ── Nav ── */
.site-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
  margin-bottom: 3.5rem;
}
.tca-label {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.site-header h1 {
  font-size: 1.5rem;
  font-weight: normal;
  color: var(--cyan);
  letter-spacing: 0.04em;
}
.site-header h1 span { color: var(--off-white); }
.tagline {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}
.nav {
  margin-top: 1.4rem;
  display: flex;
  gap: 1.6rem;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-wrap: wrap;
}
.nav a { color: var(--muted); }
.nav a:hover, .nav a.active { color: var(--cyan); }

/* ── Sections ── */
.section { margin-bottom: 3.5rem; }
.section-title {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 2rem;
}

/* ── Home hero ── */
.hero {
  padding: 3rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3.5rem;
}
.hero-name {
  font-size: 2.2rem;
  font-weight: normal;
  color: var(--off-white);
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.hero-name em {
  color: var(--cyan);
  font-style: normal;
}
.hero-tagline {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 560px;
  line-height: 1.8;
}
.hero-links {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-links a {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  padding: 0.4rem 1rem;
}
.hero-links a:hover { background: var(--cyan-dim); text-decoration: none; }
.hero-links a.amber {
  border-color: var(--amber);
  color: var(--amber);
}
.hero-links a.amber:hover { background: rgba(244,200,66,0.12); }

/* ── Area cards (home) ── */
.area-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 0;
}
.area-card {
  border: 1px solid var(--border);
  background: var(--bg-card);
  padding: 1.4rem 1.6rem;
  transition: border-color 0.15s;
}
.area-card:hover { border-color: rgba(19,218,249,0.3); }
.area-card a { color: inherit; }
.area-card a:hover { text-decoration: none; }
.area-num {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.6rem;
}
.area-title {
  font-size: 0.96rem;
  color: var(--off-white);
  margin-bottom: 0.5rem;
}
.area-desc {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── Paper cards ── */
.paper-card {
  border: 1px solid var(--border);
  background: var(--bg-card);
  padding: 1.4rem 1.6rem;
  margin-bottom: 1rem;
}
.paper-card:hover { border-color: rgba(19,218,249,0.3); }
.paper-badge {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border: 1px solid;
  margin-bottom: 0.8rem;
}
.badge-new   { color: var(--amber); border-color: var(--amber); }
.badge-ms    { color: var(--muted); border-color: var(--border); }
.paper-title {
  font-size: 1rem;
  font-weight: normal;
  color: var(--off-white);
  margin-bottom: 0.4rem;
  line-height: 1.4;
}
.paper-meta {
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 0.9rem;
}
.paper-abstract {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 1.1rem;
  line-height: 1.6;
}
.paper-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.paper-links a {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  padding: 0.25rem 0.7rem;
}
.paper-links a:hover { background: var(--cyan-dim); text-decoration: none; }
.paper-links a.dl { border-color: var(--amber); color: var(--amber); }
.paper-links a.dl:hover { background: rgba(244,200,66,0.12); }

/* ── Art gallery ── */
.art-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
}
.art-item {
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
}
.art-item:hover { border-color: rgba(19,218,249,0.3); }
.art-item img {
  width: 100%;
  display: block;
  filter: grayscale(15%);
  transition: filter 0.2s;
}
.art-item:hover img { filter: grayscale(0%); }
.art-caption {
  padding: 0.8rem 1rem;
  font-size: 0.74rem;
  color: var(--muted);
}
.art-caption strong { color: var(--off-white); display: block; margin-bottom: 0.2rem; }

.art-philosophy {
  font-size: 0.84rem;
  color: var(--muted);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}
.art-philosophy p + p { margin-top: 0.9em; }

/* ── About ── */
.bio {
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 660px;
  line-height: 1.85;
}
.bio p + p { margin-top: 1em; }
.bio strong { color: var(--off-white); }

.timeline {
  margin-top: 2.5rem;
}
.tl-entry {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 0 1.2rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}
.tl-entry:last-child { border-bottom: none; }
.tl-date { color: var(--cyan); white-space: nowrap; font-size: 0.74rem; padding-top: 0.1rem; }
.tl-title { color: var(--off-white); }
.tl-org { color: var(--muted); font-size: 0.74rem; margin-top: 0.15rem; }
.tl-desc { color: var(--muted); font-size: 0.76rem; margin-top: 0.3rem; line-height: 1.6; }

/* ── Contact ── */
.contact-block {
  font-size: 0.88rem;
  line-height: 2.2;
}
.contact-block .label { color: var(--muted); display: inline-block; width: 130px; }

/* ── Footer ── */
footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.7rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}
footer a { color: var(--muted); }
footer a:hover { color: var(--cyan); }