:root {
  --bg: #181818;
  --surface: #222;
  --fg: #e0e0e0;
  --accent: #b3b3ff;
  --muted: #777;
  --border: #2e2e2e;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--fg);
}

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

a:hover {
  text-decoration: underline;
}

/* ── nav ── */

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.02em;
}

.nav-logo:hover {
  color: var(--accent);
  text-decoration: none;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.75rem;
}

nav ul li a {
  color: var(--muted);
  font-size: 0.9rem;
}

nav ul li a:hover,
nav ul li a.active {
  color: var(--fg);
  text-decoration: none;
}

/* ── layout ── */

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

h1, h2, h3 {
  color: var(--fg);
  font-weight: 600;
}

h1 { font-size: 2rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.1rem; margin: 2.5rem 0 1rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
h3 { font-size: 1.05rem; margin: 0 0 0.4rem; }

p { margin: 0 0 1rem; }

/* ── hero (index) ── */

.hero {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}

canvas {
  image-rendering: pixelated;
  flex-shrink: 0;
}

.hero-text h1 { font-size: 1.8rem; }
.hero-text p { color: var(--muted); margin: 0; }

/* ── link list ── */

.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* ── post list ── */

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-list li {
  display: flex;
  gap: 1.5rem;
  align-items: baseline;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}

.post-list li:last-child {
  border-bottom: none;
}

.post-date {
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.blog-empty {
  color: var(--muted);
}

/* ── blog post ── */

.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.post-header h1 { margin-bottom: 0.4rem; }

.post-meta {
  color: var(--muted);
  font-size: 0.88rem;
}

.post-body {
  line-height: 1.8;
}

.post-body p { margin: 0 0 1.2rem; }

.post-body h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.75rem;
  color: var(--fg);
  text-transform: none;
  letter-spacing: 0;
}

.post-back {
  display: inline-block;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.post-back:hover {
  color: var(--fg);
  text-decoration: none;
}

/* ── portfolio ── */

.project-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
}

.project-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.project-card .featured-eyebrow {
  color: var(--accent);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.7rem;
}

.project-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
}

.project-head h3 { margin: 0; }

.badge {
  flex-shrink: 0;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}

.badge-oss {
  color: var(--accent);
  border-color: var(--accent);
}

.project-card .project-meta {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0 0 0.7rem;
}

.project-card p {
  color: var(--muted);
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
}

.project-card .project-note {
  color: var(--muted);
  font-size: 0.85rem;
  font-style: italic;
  margin: 0;
}

.project-card p code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.02em 0.3em;
  color: var(--fg);
}

.project-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.tag {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.1rem 0.45rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-links a {
  font-size: 0.88rem;
}

/* ── footer ── */

footer {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}