/* Minimal white + greys, terminal-ish monospace accent */
:root{
  --bg:#ffffff;
  --ink:#151718;          /* deep neutral */
  --muted:#6b7280;        /* secondary text */
  --line:#e5e7eb;         /* hairline borders */
  --accent:#111827;       /* link/hover (still grey) */
  --card:#ffffff;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans";
  --maxw: 860px;
  --header-h: 64px; /* fallback header height if JS measurement fails */
}

/* Dark mode variables */
[data-theme="dark"] {
  --bg: #0f0f0f;
  --ink: #e5e7eb;
  --muted: #9ca3af;
  --line: #374151;
  --accent: #d1d5db;
  --card: #1f1f1f;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink)}
body{font:16px/1.65 var(--sans); -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;}
a{color:var(--accent);text-decoration:none;border-bottom:1px dotted rgba(0,0,0,.25)}
a:hover{text-decoration:none;border-bottom-color:transparent}

/* Header / Nav */
.site-header{
  display:flex; gap:16px; align-items:center; justify-content:space-between;
  border-bottom:1px solid var(--line);
  padding:14px 18px; position:sticky; top:0; background:var(--bg); backdrop-filter:saturate(140%) blur(6px);
  z-index: 200;
}
.brand{font-weight:700; letter-spacing:.2px; border-bottom:0 !important}
.nav{
  display:flex; align-items:center; gap:0; margin-left:auto; flex-wrap:nowrap; background:var(--bg);
}

.nav a{margin-left:14px; color:var(--muted); border-bottom:0; white-space:nowrap}

.nav a:first-child{margin-left:0}
.nav a:hover{color:var(--ink)}

/* Dark mode toggle */
.dark-mode-toggle {
  background: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
  cursor: pointer;
  color: var(--muted);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 32px;
  height: 32px;
}

.dark-mode-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--line);
}

.dark-mode-toggle .sun-icon {
  display: block;
}

.dark-mode-toggle .moon-icon {
  display: none;
}

[data-theme="dark"] .dark-mode-toggle .sun-icon {
  display: none;
}

[data-theme="dark"] .dark-mode-toggle .moon-icon {
  display: block;
}

/* Layout */
.container{max-width:var(--maxw); margin:32px auto; padding:0 18px}
.content{padding:0; color: var(--ink)}
.content h1,.content h2,.content h3{line-height:1.25; margin:1.25em 0 .6em; color: var(--ink)}
.content h1{font-size:28px}
.content h2{font-size:22px}
.content h3{font-size:18px}
.content p, .content ul, .content ol, .content blockquote{margin:0 0 1em}
.content blockquote{border-left:3px solid var(--line); padding-left:12px; color:var(--muted)}

/* Code */
.content code{
  font-family:var(--mono); font-size:.95em;
  background:#f8fafc; padding:2px 6px; border:1px solid var(--line); border-radius:6px;
  color: var(--ink);
}

[data-theme="dark"] .content code {
  background: #374151;
  color: var(--ink);
}
.content pre{
  background:#0b1220; color:#e5e7eb; padding:16px; border-radius:8px;
  overflow:auto; border:1px solid #0f172a
}
.content pre code{background:transparent; border:0; padding:0; color:inherit}

/* Highlight.js overrides for better syntax highlighting */
.content pre .hljs {
  background: transparent !important;
  color: inherit !important;
}

.content pre .hljs-keyword {
  color: #ff7b72 !important;
}

.content pre .hljs-string {
  color: #a5d6ff !important;
}

.content pre .hljs-number {
  color: #79c0ff !important;
}

.content pre .hljs-comment {
  color: #8b949e !important;
  font-style: italic;
}

.content pre .hljs-function {
  color: #d2a8ff !important;
}

.content pre .hljs-class {
  color: #ffa657 !important;
}

.content pre .hljs-variable {
  color: #ffa198 !important;
}

.content pre .hljs-operator {
  color: #ff7b72 !important;
}

.content pre .hljs-punctuation {
  color: #c9d1d9 !important;
}

/* Misc */
hr{border:0; border-top:1px solid var(--line); margin:24px 0}
.table{width:100%; border-collapse:collapse}
.table th,.table td{border:1px solid var(--line); padding:8px 10px; text-align:left}
.table th{background:#f9fafb; color:#111827}


/* Site Footer */
.site-footer{
  max-width:var(--maxw);
  margin:48px auto 0;
  padding:0 18px 24px;
  color:var(--muted);
  font-size:14px;
  display:flex;
  justify-content:center;   /* center horizontally */
  align-items:center;
  gap:6px;
  text-align:center;
}

/* Projects Page Styles */

.loading, .error {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
}

.error {
  color: #dc2626;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-progress {
  margin-top: 16px;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--line);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--accent);
  width: var(--progress, 0%);
  transition: width 0.3s ease;
}

.retry-button {
  background: var(--accent);
  color: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  margin-top: 12px;
  transition: all 0.2s ease;
}

.retry-button:hover {
  background: var(--ink);
  border-color: var(--ink);
}

.projects-list {
  display: grid;
  gap: 32px;
  margin-top: 24px;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  transition: all 0.2s ease;
}

.project-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 16px;
}

.project-title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.project-title a {
  color: var(--ink);
  border-bottom: 0;
}

.project-title a:hover {
  color: var(--accent);
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  font-size: 14px;
  color: var(--muted);
}

.language {
  background: #f3f4f6;
  color: var(--ink);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
}

.stars {
  display: flex;
  align-items: center;
  gap: 4px;
}

.updated {
  font-size: 12px;
}

.project-description {
  margin: 0 0 12px 0;
  color: var(--muted);
  line-height: 1.5;
}

.project-links {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}

.project-links a {
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: all 0.2s ease;
}

.project-links a:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

/* Responsive design for projects */
@media (max-width: 880px) {
  .project-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  .project-meta {
    flex-wrap: wrap;
    gap: 8px;
  }
  
  .project-links {
    flex-direction: column;
    gap: 8px;
  }
  
  .project-links a {
    text-align: center;
  }
}

.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
  /* Ensure hash navigation leaves room for the fixed header */
  scroll-margin-top: calc(var(--header-h) + 12px);
}

@media (max-width: 760px) {
  .site-header {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .nav {
    margin-left: 0;
    width: 100%;
    justify-content: flex-start;
    padding: 6px 4px 10px;
    gap: 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x;
    overscroll-behavior-inline: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
  }

  .nav::-webkit-scrollbar {
    height: 4px;
  }

  .nav::-webkit-scrollbar-track {
    background: transparent;
  }

  .nav::-webkit-scrollbar-thumb {
    background: var(--line);
    border-radius: 999px;
  }

  [data-theme="dark"] .nav::-webkit-scrollbar-thumb {
    background: #475569;
  }

  .nav a {
    flex: 0 0 auto;
    margin-left: 0;
  }

  .dark-mode-toggle {
    align-self: flex-end;
  }
}