:root {
  --bg: #FDF6E3;
  --surface: #F4F0D9;
  --text: #2D353B;
  --accent: #8DA101;
  --accent-hover: #748401;
  --divider: rgba(141, 161, 1, 0.15);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #2D353B;
    --surface: #343F44;
    --text: #D3C6AA;
    --accent: #A7C080;
    --accent-hover: #B9CD99;
    --divider: rgba(167, 192, 128, 0.15);
  }
}

html[data-theme="light"] {
  --bg: #FDF6E3;
  --surface: #F4F0D9;
  --text: #2D353B;
  --accent: #8DA101;
  --accent-hover: #748401;
  --divider: rgba(141, 161, 1, 0.15);
}

html[data-theme="dark"] {
  --bg: #2D353B;
  --surface: #343F44;
  --text: #D3C6AA;
  --accent: #A7C080;
  --accent-hover: #B9CD99;
  --divider: rgba(167, 192, 128, 0.15);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Ubuntu', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
}
header {
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--divider);
}
nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-link {
  font-family: 'Ubuntu Mono', monospace;
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text);
  text-decoration: none;
  opacity: 0.5;
  transition: opacity 0.2s, color 0.2s;
}
.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  opacity: 1;
}
/* Theme switch */
.theme-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 40px;
  height: 20px;
  margin-left: auto;
  cursor: pointer;
}
.theme-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.theme-switch-track {
  position: absolute;
  inset: 0;
  background: var(--surface);
  border: 1px solid var(--accent);
  transition: background-color 0.2s ease;
}
.theme-switch-track::before {
  content: "";
  position: absolute;
  height: 12px;
  width: 12px;
  left: 2px;
  top: 2px;
  background: var(--accent);
  transition: transform 0.2s ease;
}
.theme-switch input:checked + .theme-switch-track::before {
  transform: translateX(18px);
}
.theme-switch input:focus-visible + .theme-switch-track {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
main {
  min-height: 50vh;
}
.loading {
  opacity: 0.5;
  font-style: italic;
}
/* Typography */
h1, h2, h3, h4 {
  font-family: 'Ubuntu Mono', monospace;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--accent);
}
h1 {
  font-size: 2.2rem;
  letter-spacing: -0.03em;
  margin-top: 0;
}
h2 {
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--divider);
  padding-bottom: 0.4rem;
  margin-top: 2.5rem;
}
h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
}
p {
  margin-bottom: 1rem;
}
a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  text-decoration-thickness: 1px;
}
a:hover {
  color: var(--accent-hover);
}
/* Lists */
ul, ol {
  margin-left: 1.2rem;
  margin-bottom: 1rem;
}
li {
  margin-bottom: 0.4rem;
}
/* CV specific */
strong {
  font-weight: 700;
}
em {
  font-style: italic;
  opacity: 0.85;
}
/* PDF button */
.pdf-link {
  display: inline-block;
  font-family: 'Ubuntu Mono', monospace;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.5rem 1rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  margin: 1rem 0 2rem;
  transition: all 0.2s;
}
.pdf-link:hover {
  background: var(--accent);
  color: var(--bg);
}
/* Footer */
footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--divider);
  font-size: 0.85rem;
  opacity: 0.7;
}
footer a {
  text-decoration: none;
}
/* Responsive */
@media (max-width: 600px) {
  .container {
    padding: 2rem 1rem 1.5rem;
  }
  
  h1 {
    font-size: 1.7rem;
  }
  
  nav {
    gap: 1.5rem;
  }
}
/* Profile photo */
.profile-photo {
  margin-bottom: 2rem;
}
.profile-photo img {
  width: 100%;
  height: auto;
  max-height: 440px;
  object-fit: cover;
  display: block;
}
.profile-photo figcaption {
  margin-top: 0.6rem;
  font-family: 'Ubuntu Mono', monospace;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.6;
}