:root {
  /* cream & coffee — light default */
  --bg: #f3e9d8;         /* warm cream */
  --bg-soft: #fbf5ea;    /* ivory card */
  --text: #3c2e24;       /* espresso */
  --muted: #8a7259;      /* coffee taupe */
  --accent: #9c6644;     /* mocha */
  --accent-soft: rgba(156, 102, 68, 0.13);
  --accent-2: #157f5f;   /* emerald */
  --accent-2-soft: rgba(21, 127, 95, 0.12);
  --border: rgba(90, 62, 40, 0.15);
  --radius: 14px;
  --maxw: 640px;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* rich espresso */
    --bg: #211913;
    --bg-soft: #2c221b;
    --text: #f1e7d7;     /* cream text */
    --muted: #b6a186;    /* latte */
    --accent: #d9a679;   /* caramel */
    --accent-soft: rgba(217, 166, 121, 0.14);
    --accent-2: #34d399;   /* emerald */
    --accent-2-soft: rgba(52, 211, 153, 0.15);
    --border: rgba(241, 231, 215, 0.1);
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  padding: clamp(2rem, 6vw, 5rem) 1.5rem;
  position: relative;
  overflow-x: hidden;
}

/* soft ambient glow behind content */
.glow {
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 60rem;
  height: 40rem;
  background: radial-gradient(circle at center, var(--accent-soft), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

main {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
}

.topnav {
  display: flex;
  gap: 1.4rem;
  justify-content: flex-end;
  margin-bottom: 2.5rem;
  font-size: 0.92rem;
}

.topnav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1.5px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.topnav a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
}

.hero-text { min-width: 0; }

.avatar {
  width: 112px;
  height: 112px;
  flex-shrink: 0;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
  display: block;
  background: var(--bg-soft);
}

@media (max-width: 460px) {
  .hero { flex-direction: row-reverse; align-items: flex-start; gap: 1rem; }
  .avatar { width: 76px; height: 76px; }
}

.eyebrow {
  color: var(--accent-2);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 0.9rem;
}

h1 {
  font-size: clamp(2.4rem, 8vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.tagline {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(1.15rem, 3.5vw, 1.5rem);
  color: var(--muted);
  margin-top: 1.1rem;
  max-width: 34ch;
}

.tagline em { color: var(--text); font-style: italic; }

.about {
  margin-top: 2.75rem;
  padding-top: 2.75rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 1.05rem;
}

.projects { margin-top: 3rem; }

.timeline-section { margin-top: 3rem; }

.langs-section { margin-top: 3rem; }

.langs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 2.25rem;
  margin: 0;
  padding: 0;
}

.langs li { font-size: 0.98rem; }
.langs .lang { font-weight: 600; color: var(--accent-2); }
.langs .muted { color: var(--muted); }

.timeline { list-style: none; display: grid; gap: 1.6rem; }

.timeline .entry-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.timeline .role { font-weight: 600; font-size: 1.02rem; }

.timeline .date {
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.timeline .org {
  display: block;
  color: var(--accent-2);
  font-size: 0.92rem;
  margin-top: 0.15rem;
}

.timeline .org .muted { color: var(--muted); }

.timeline .entry-desc {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 0.4rem;
}

.timeline .entry-desc a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  white-space: nowrap;
  border-bottom: 1.5px solid transparent;
  transition: border-color 0.2s ease;
}

.timeline .entry-desc a:hover { border-bottom-color: var(--accent); }

/* collapsible entries */
.timeline details summary {
  cursor: pointer;
  list-style: none;
  border-radius: 8px;
  outline-offset: 3px;
}

.timeline details summary::-webkit-details-marker { display: none; }

.timeline details summary .entry-head { display: flex; }

.timeline summary:hover .role { color: var(--accent); }

.timeline .caret {
  display: inline-block;
  color: var(--muted);
  font-weight: 400;
  transition: transform 0.2s ease;
}

.timeline details[open] .caret { transform: rotate(90deg); }

.timeline .bullets {
  margin: 0.85rem 0 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.55rem;
  color: var(--muted);
  font-size: 0.93rem;
}

.timeline .bullets li { line-height: 1.55; padding-left: 0.15rem; }
.timeline .bullets li::marker { color: var(--accent-2); }

.timeline .terms-label {
  margin: 0.85rem 0 0.55rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.timeline .terms {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.timeline .terms li {
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border);
  padding: 0.22rem 0.65rem;
  border-radius: 100px;
  white-space: nowrap;
}

h2 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 1.4rem;
}

.project-list { list-style: none; display: grid; gap: 1rem; }

.project-list li {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.project-list li:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.project-list li.featured {
  background: transparent;
  border: none;
  padding: 0;
}

.project-list a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.project-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.project-head h3 { font-size: 1.15rem; font-weight: 600; }

.tag {
  font-size: 0.75rem;
  color: var(--accent-2);
  background: var(--accent-2-soft);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  white-space: nowrap;
}

.project-list p { color: var(--muted); font-size: 0.97rem; }

.links {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-size: 1.05rem;
}

.links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1.5px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.links a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.dot { color: var(--muted); }

.colophon {
  margin-top: 3.5rem;
  font-size: 0.82rem;
  color: var(--muted);
  opacity: 0.7;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}