/* ─── Reset ──────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Variables (matches p4n4.com) ───────────── */
:root {
  --bg:      #0a0a0a;
  --bg2:     #111111;
  --bg3:     #1a1a1a;
  --accent:  #f97316;
  --accent2: #c2410c;
  --text:    #ececec;
  --muted:   #a8a8a8;
  --border:  #1f1f1f;
  --border2: #2a2a2a;
  --w:       680px;
  --mono:    'JetBrains Mono', monospace;
  --sans:    'Plus Jakarta Sans', sans-serif;
}

/* ─── Base ───────────────────────────────────── */
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Grid texture — matches p4n4.com */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(249,115,22,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(249,115,22,0.035) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* Scanline overlay — matches p4n4.com */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.03) 2px,
    rgba(0,0,0,0.03) 4px
  );
  pointer-events: none;
  z-index: 999;
}

a { color: inherit; text-decoration: none; }

/* ─── Layout ─────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--w);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* ─── Header / Nav ───────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
}

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

/* ─── Main ───────────────────────────────────── */
.site-main {
  flex: 1;
  padding: 3rem 0;
  position: relative;
  z-index: 1;
}

/* ─── Footer ─────────────────────────────────── */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.footer-logo span { color: var(--muted); }

.footer-copy {
  font-family: var(--mono);
  font-size: 0.625rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ─── Index: label ───────────────────────────── */
.index-label {
  font-family: var(--mono);
  font-size: 0.625rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.index-label::before {
  content: '//';
  color: var(--border2);
}

/* ─── Index: post list ───────────────────────── */
.post-list {
  list-style: none;
  border-top: 1px solid var(--border);
}

.post-item {
  border-bottom: 1px solid var(--border);
}

.post-link {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  margin: 0 -1.5rem;
  position: relative;
  overflow: hidden;
  transition: background 0.15s;
}

.post-link::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.post-link:hover { background: var(--bg2); }
.post-link:hover::after { transform: scaleX(1); }

.post-info {
  flex: 1;
  min-width: 0;
}

.post-thumb {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  overflow: hidden;
  border: 1px solid var(--border2);
  border-radius: 2px;
  opacity: 0.75;
  transition: opacity 0.2s;
}

.post-link:hover .post-thumb { opacity: 1; }

.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(30%);
  transition: filter 0.2s;
}

.post-link:hover .post-thumb img { filter: none; }

.post-date {
  font-family: var(--mono);
  font-size: 0.625rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.post-title {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 0.35rem;
  letter-spacing: -0.3px;
}

.post-excerpt {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ─── Post: header ───────────────────────────── */
.post-header {
  position: relative;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.post-eyebrow {
  font-family: var(--mono);
  font-size: 0.625rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.post-eyebrow::before { content: '//'; color: var(--border2); }

.post-header h1 {
  font-family: var(--sans);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: #fff;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.post-header .post-date {
  font-family: var(--mono);
  font-size: 0.6875rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  position: relative;
  z-index: 1;
}

.post-watermark {
  position: absolute;
  right: -0.05em;
  top: -0.1em;
  font-family: var(--mono);
  font-size: 7rem;
  font-weight: 700;
  color: rgba(249,115,22,0.06);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.05em;
  z-index: 0;
}

/* ─── Prose ──────────────────────────────────── */
.prose {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
}

.prose > * + * { margin-top: 1.2em; }

.prose h2 {
  font-family: var(--sans);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #fff;
  margin-top: 2.5rem;
  margin-bottom: -0.4rem;
}

.prose h3 {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 2rem;
  margin-bottom: -0.4rem;
}

.prose p { color: var(--text); }

.prose ul,
.prose ol {
  padding-left: 1.375rem;
  color: var(--text);
}

.prose li { margin-bottom: 0.3em; }

.prose strong { font-weight: 700; color: #fff; }

.prose em { font-style: italic; color: var(--muted); }

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: rgba(249,115,22,0.4);
  transition: text-decoration-color 0.15s;
}

.prose a:hover { text-decoration-color: var(--accent); }

.prose code {
  font-family: var(--mono);
  font-size: 0.8125em;
  background: var(--bg3);
  color: var(--accent);
  padding: 0.1em 0.4em;
  border: 1px solid var(--border2);
  border-radius: 2px;
}

.prose pre {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-top: 2px solid var(--accent);
  border-radius: 2px;
  padding: 1.25rem;
  overflow-x: auto;
  font-size: 0.8125rem;
  line-height: 1.7;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: var(--text);
}

.prose blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 1.25rem;
  color: var(--muted);
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.prose img,
.prose video {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border2);
  border-radius: 2px;
}

.prose figure { margin: 2rem 0; }

.prose figcaption {
  font-family: var(--mono);
  font-size: 0.625rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-align: center;
  margin-top: 0.6rem;
  text-transform: uppercase;
}

/* ─── States ─────────────────────────────────── */
.msg {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding: 4rem 0;
  text-align: center;
}

/* ─── Responsive ─────────────────────────────── */
@media (max-width: 540px) {
  .container { padding: 0 1rem; }

  .nav-links { gap: 1.25rem; }

  .post-link {
    padding-left: 1rem;
    padding-right: 1rem;
    margin: 0 -1rem;
  }

  .post-thumb { display: none; }

  .post-header h1  { font-size: 1.5rem; }
  .post-watermark  { font-size: 5rem; }

  .site-header .container { height: 52px; }
}