/* ── VARIABLES ── */
:root[data-theme="dark"] {
  --bg: #0a0a0a;
  --fg: #e8e8e8;
  --fg-dim: #999;
  --fg-mid: #999;
  --accent: #ff2d6d;
  --accent-dim: rgba(255, 45, 109, 0.12);
  --border: #222;
}

:root[data-theme="light"] {
  --bg: #f5f5f0;
  --fg: #111111;
  --fg-dim: #888;
  --fg-mid: #666;
  --accent: #ff2d6d;
  --accent-dim: rgba(255, 45, 109, 0.08);
  --border: #ddd;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* ── BASE ── */
body {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  transition: background 0.2s, color 0.2s;
  min-height: 100vh;
}

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

/* ── LAYOUT ── */
.site-wrapper {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── HEADER ── */
header {
  padding: 2.5rem 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4rem;
}

.wordmark {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark::after {
  content: '_';
  animation: blink 1.2s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

nav a {
  font-size: 0.8rem;
  color: var(--fg-dim);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.15s;
}

nav a:hover { color: var(--accent); }

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.03em;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── SECTIONS ── */
section {
  margin-bottom: 5rem;
}

.section-label {
  font-size: 0.72rem;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
  margin-bottom: 1.8rem;
  text-transform: uppercase;
}

.section-label::before {
  content: '// ';
  color: var(--accent);
}

/* ── ABOUT ── */
.about-text {
  font-size: 0.95rem;
  color: var(--fg-mid);
  max-width: 580px;
  line-height: 1.8;
}

.about-text p { margin-bottom: 0.8rem; }
.about-text p:last-child { margin-bottom: 0; }

.about-text strong {
  color: var(--fg);
  font-weight: 600;
}

.about-meta {
  margin-top: 1.5rem;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.meta-item {
  font-size: 0.78rem;
  color: var(--fg-dim);
}

.meta-item span {
  color: var(--accent);
  margin-right: 0.4rem;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 0.5rem;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ── PROJECTS ── */
.projects-grid {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
}

.project-card {
  padding: 1.4rem 1.6rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: start;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s;
}

.project-card:last-child { border-bottom: none; }

.project-card:hover { background: var(--accent-dim); }
.project-card:hover .project-name { color: var(--accent); }

.project-name {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  transition: color 0.15s;
  color: var(--fg);
}

.project-desc {
  font-size: 0.78rem;
  color: var(--fg-mid);
  line-height: 1.6;
}

.project-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.tag {
  font-size: 0.68rem;
  color: var(--fg-dim);
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem;
  white-space: nowrap;
}

/* ── BLOG LIST ── */
.post-list {
  display: flex;
  flex-direction: column;
}

.post-item {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
}

.post-item:first-child { border-top: 1px solid var(--border); }
.post-item:hover .post-title { color: var(--accent); }

.post-date {
  font-size: 0.72rem;
  color: var(--fg-dim);
  white-space: nowrap;
}

.post-title {
  font-size: 0.88rem;
  color: var(--fg);
  transition: color 0.15s;
  line-height: 1.5;
}

/* ── SINGLE POST ── */
.single { max-width: 680px; }

.post-header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
}

.post-header .section-label {
  margin-bottom: 1rem;
}

.post-header .post-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1.4;
  margin-bottom: 1.2rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.post-content {
  font-size: 0.9rem;
  color: var(--fg-mid);
  line-height: 1.9;
}

.post-content h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--fg);
  margin: 2.5rem 0 1rem;
}

.post-content h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--fg);
  margin: 2rem 0 0.8rem;
}

.post-content p { margin-bottom: 1.2rem; }

.post-content a { color: var(--accent); }

.post-content strong {
  color: var(--fg);
  font-weight: 600;
}

.post-content ul, .post-content ol {
  margin: 0 0 1.2rem 1.5rem;
}

.post-content li { margin-bottom: 0.4rem; }

.post-content code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 0.1em 0.4em;
  border-radius: 2px;
}

.post-content pre {
  background: #111;
  border: 1px solid var(--border);
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin-bottom: 1.4rem;
}

.post-content pre code {
  background: none;
  color: var(--fg);
  padding: 0;
  font-size: 0.82rem;
}

.post-content blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  color: var(--fg-dim);
  margin-bottom: 1.2rem;
}

.post-nav {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
}

.post-nav a { color: var(--fg-dim); }
.post-nav a:hover { color: var(--accent); }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-left {
  font-size: 0.72rem;
  color: var(--fg-dim);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.72rem;
  color: var(--fg-dim);
  text-decoration: none;
  transition: color 0.15s;
}

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

/* ── 404 ── */
.not-found { padding: 4rem 0; }

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  nav { gap: 1.2rem; flex-wrap: wrap; }
  .post-item { grid-template-columns: 1fr; gap: 0.2rem; }
  .post-date { font-size: 0.68rem; }
  .project-card { grid-template-columns: 1fr; }
  .project-tags { justify-content: flex-start; margin-top: 0.8rem; }
  .about-meta { flex-direction: column; gap: 0.6rem; }
}

/* ── single post header fix ── */
.post-header {
  display: block;
  margin-bottom: 2.5rem;
}

.post-header .post-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1.3;
  margin-bottom: 1rem;
  display: block;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}