@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Fira+Code:wght@400;500&display=swap');

/* ---- Subtle Geek — Clean Dark ---- */
:root {
  --bg:        #0d1117;
  --surface:   #161b22;
  --surface2:  #0d1117;
  --border:    #21262d;
  --border2:   #30363d;
  --text:      #e6edf3;
  --sub1:      #c9d1d9;
  --sub0:      #8b949e;
  --dimmed:    #484f58;
  --accent:    #58a6ff;
  --accent-h:  #79c0ff;
  --green:     #3fb950;
  --teal:      #39d3bb;
  --mauve:     #bc8cff;
  --yellow:    #e3b341;
  --orange:    #f0883e;
  --red:       #ff7b72;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Fira Code', 'JetBrains Mono', Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

/* ---- Layout ---- */
.window {
  max-width: 880px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- Header ---- */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 58px;
  background: rgba(13,17,23,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 200;
}

.site-logo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.site-logo:hover { color: var(--accent); text-decoration: none; }
.site-logo .lb { color: var(--dimmed); }

/* ---- Navigation ---- */
nav {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
nav::-webkit-scrollbar { display: none; }

nav a {
  padding: 6px 12px;
  color: var(--sub0);
  text-decoration: none;
  font-size: 13px;
  font-family: var(--font-mono);
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}
nav a:hover { color: var(--text); background: var(--surface); }
nav a.active { color: var(--accent); background: rgba(88,166,255,0.08); }

/* ---- Main ---- */
main {
  flex: 1;
  padding: 52px 32px;
}

/* ---- Section headings ---- */
.sh {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin: 52px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-sans);
  letter-spacing: -0.01em;
}
.sh::before { content: none; }

.sh2 {
  font-size: 11px;
  font-weight: 600;
  color: var(--sub0);
  margin: 28px 0 12px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.sh2::before { content: none; }

/* ---- Prompt — very subtle, just a trace of geek ---- */
.prompt {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  opacity: 0.35;
}
.p-user, .p-at, .p-host, .p-sep, .p-path, .p-sym, .p-cmd { color: var(--sub0); }
.p-sym { margin: 0 5px 0 1px; }

/* Cursor */
.cursor {
  display: inline-block;
  width: 7px; height: 1.1em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1.1s step-end infinite;
  margin-left: 2px;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ---- Output / comment ---- */
.output { margin-bottom: 36px; }
.cmt {
  color: var(--dimmed);
  font-family: var(--font-mono);
  font-size: 12px;
}
.cmt::before { content: '# '; }

/* ---- Hero ---- */
.hero-name {
  font-size: clamp(32px, 6vw, 54px);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 28px 0 12px;
  font-family: var(--font-sans);
}

.tagline {
  color: var(--sub0);
  font-size: 15px;
  margin-bottom: 28px;
}
.tagline .sep { color: var(--border2); margin: 0 10px; }

/* Boot sequence — tucked inside a subtle code box ---- */
#boot {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--dimmed);
  line-height: 2;
  min-height: 60px;
  margin-bottom: 36px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
#boot .ok   { color: var(--green); }
#boot .warn { color: var(--yellow); }
#boot .info { color: var(--accent); }

/* ---- Home quick-links ---- */
.cmd-menu {
  margin: 28px 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.cmd-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}
.cmd-item:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  text-decoration: none;
  color: inherit;
}
.cmd-item .cmd-sym  { color: var(--dimmed); font-size: 11px; font-family: var(--font-mono); }
.cmd-item .cmd-name { color: var(--text); font-weight: 600; font-size: 14px; }
.cmd-item .cmd-desc { color: var(--sub0); font-size: 13px; }

/* ---- Cards ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 12px;
  transition: border-color 0.15s;
}
.card:hover { border-color: var(--border2); }
.card.blue, .card.mauve, .card.peach,
.card.teal, .card.yellow { border-color: var(--border); }

.card-title { color: var(--text); font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.card-sub   { color: var(--sub0); font-size: 13px; margin-bottom: 6px; }
.card-date  { color: var(--dimmed); font-size: 12px; font-family: var(--font-mono); }
.card p     { color: var(--sub1); font-size: 14px; margin: 6px 0; }

/* ---- Timeline ---- */
.timeline { border-left: 2px solid var(--border); padding-left: 28px; margin: 4px 0 4px 4px; }
.tl-item  { position: relative; margin-bottom: 32px; }
.tl-item::before {
  content: '';
  position: absolute; left: -33px; top: 9px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--bg), 0 0 0 4px var(--accent);
}
.tl-period { color: var(--dimmed); font-size: 12px; font-family: var(--font-mono); }
.tl-role   { color: var(--text); font-weight: 600; font-size: 15px; margin: 4px 0 2px; }
.tl-org    { color: var(--sub1); font-size: 14px; }
.tl-desc   { color: var(--sub0); font-size: 14px; margin-top: 8px; line-height: 1.65; }

/* ---- Tags ---- */
.tags { margin: 10px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 11px;
  border-radius: 20px;
  border: 1px solid var(--border2);
  color: var(--sub0);
  font-family: var(--font-mono);
}
.tg { color: var(--green);   border-color: rgba(63,185,80,0.35);   background: rgba(63,185,80,0.06);   }
.tb { color: var(--accent);  border-color: rgba(88,166,255,0.35);  background: rgba(88,166,255,0.06);  }
.tm { color: var(--mauve);   border-color: rgba(188,140,255,0.35); background: rgba(188,140,255,0.06); }
.tt { color: var(--teal);    border-color: rgba(57,211,187,0.35);  background: rgba(57,211,187,0.06);  }
.tp { color: var(--orange);  border-color: rgba(240,136,62,0.35);  background: rgba(240,136,62,0.06);  }
.ty { color: var(--yellow);  border-color: rgba(227,179,65,0.35);  background: rgba(227,179,65,0.06);  }
.ts { color: var(--sub0);    border-color: var(--border2); }

/* ---- Inline colours ---- */
.green  { color: var(--green);   }
.blue   { color: var(--accent);  }
.teal   { color: var(--teal);    }
.mauve  { color: var(--mauve);   }
.red    { color: var(--red);     }
.yellow { color: var(--yellow);  }
.peach  { color: var(--orange);  }
.dimmed { color: var(--dimmed);  }
.sky    { color: var(--accent-h);}

/* ---- Links ---- */
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---- Code ---- */
pre, code { font-family: var(--font-mono); }
code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 13px;
  color: var(--sub1);
}
pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  margin: 16px 0;
}
pre code { background: none; border: none; padding: 0; }

/* ---- Contact form ---- */
.t-form .field { margin-bottom: 20px; }
.t-form label {
  display: block;
  color: var(--sub1);
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 500;
}
.t-form label::before { content: none; }
.t-form input,
.t-form textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.t-form input:focus,
.t-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(88,166,255,0.12);
}
.t-form textarea { resize: vertical; min-height: 130px; }

.btn {
  background: var(--accent);
  border: none;
  border-radius: 6px;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 28px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.btn:hover { background: var(--accent-h); }
.btn:active { transform: scale(0.98); }

/* ---- Social links ---- */
.socials { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 16px;
  color: var(--sub1);
  font-size: 13px;
  font-family: var(--font-mono);
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.social-link:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* ---- Blog list ---- */
.post-list { list-style: none; }
.post-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
.post-item:last-child { border-bottom: none; }
.post-date    { color: var(--dimmed); font-size: 12px; min-width: 90px; margin-top: 3px; font-family: var(--font-mono); }
.post-body    { flex: 1; }
.post-title   { color: var(--text); font-weight: 500; font-size: 15px; }
.post-title:hover { color: var(--accent); text-decoration: none; }
.post-excerpt { color: var(--sub0); font-size: 14px; margin-top: 4px; }

/* ---- Footer ---- */
footer {
  border-top: 1px solid var(--border);
  padding: 14px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--dimmed);
  gap: 12px;
}

/* ---- Profile photo ---- */
.profile-section {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px 0 8px;
}
.profile-photo {
  width: 160px;
  min-width: 160px;
  height: 160px;
  object-fit: cover;
  object-position: center top;
  border-radius: 12px;
  border: 1px solid var(--border2);
  display: block;
  background: var(--surface);
}
.profile-details { flex: 1; }
.profile-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.profile-legal {
  font-size: 12px;
  color: var(--dimmed);
  font-family: var(--font-mono);
  margin-bottom: 10px;
}
.profile-title {
  font-size: 14px;
  color: var(--sub1);
  margin-bottom: 6px;
  line-height: 1.6;
}
.profile-inst {
  font-size: 13px;
  color: var(--sub0);
}

@media (max-width: 520px) {
  .profile-section { flex-direction: column; align-items: flex-start; gap: 20px; }
  .profile-photo { width: 120px; min-width: 120px; height: 120px; }
}

/* ---- Book items ---- */
.book-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
  transition: border-color 0.15s;
}
.book-item:hover { border-color: var(--border2); }
.book-cover {
  width: 68px;
  min-width: 68px;
  height: 100px;
  object-fit: cover;
  border-radius: 4px;
  background: var(--border);
  display: block;
}
.book-info { flex: 1; }
.book-title  { color: var(--text); font-weight: 600; font-size: 14px; margin-bottom: 4px; line-height: 1.4; }
.book-author { color: var(--sub0); font-size: 13px; }
.book-note   { color: var(--sub1); font-size: 13px; margin-top: 8px; line-height: 1.6; }
.book-status {
  display: inline-block;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--green);
  border: 1px solid rgba(63,185,80,0.35);
  background: rgba(63,185,80,0.06);
  border-radius: 20px;
  padding: 1px 9px;
  margin-top: 8px;
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
  main { padding: 32px 16px; }
  .hero-name { font-size: 30px; }
  .cmd-menu { grid-template-columns: 1fr 1fr; }
  header { padding: 0 16px; }
  nav a { padding: 6px 8px; font-size: 12px; }
  .post-item { flex-direction: column; gap: 4px; }
  .post-date { min-width: unset; }
  footer { flex-direction: column; text-align: center; gap: 4px; }
}