@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,800&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;600&display=swap");

:root {
  --bg: #f6f3ee;
  --ink: #1a1a1a;
  --muted: #6b6458;
  --line: #e3ddd1;
  --accent: #c75a2a;
  --accent-soft: #fbe8dc;
  --card: #ffffff;
  --dark: #1a1a1a;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.7;
}

/* TOP NAV */
.top {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(246, 243, 238, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 5vw;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
}
.top nav {
  display: flex;
  gap: 28px;
  justify-content: center;
}
.top nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  transition: color .2s;
}
.top nav a:hover { color: var(--accent); }
.progress {
  justify-self: end;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.05em;
}
.reading-bar {
  height: 2px;
  background: var(--line);
}
.reading-bar #bar {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width .1s;
}

/* ARTICLE HEADER */
.article {
  max-width: 760px;
  margin: 80px auto 40px;
  padding: 0 5vw;
}
.kicker {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 20px;
}
h1 {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.lede {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.5;
  color: #3a3730;
  max-width: 640px;
}
.lede em {
  font-style: italic;
  color: var(--accent);
}

.meta-row {
  margin-top: 56px;
  padding-top: 28px;
  padding-bottom: 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.avatar {
  width: 42px; height: 42px;
  background: var(--dark);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 14px;
  border-radius: 50%;
}
.author strong { display: block; font-size: 14px; }
.author span { color: var(--muted); font-size: 13px; }
.ttr { color: var(--muted); font-size: 13px; }
.ttr span { margin: 0 6px; color: var(--line); }

/* CONTENT */
.content {
  max-width: 1080px;
  margin: 90px auto;
  padding: 0 5vw;
}
.content > h2 {
  font-family: var(--serif);
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 720px;
}
.content > p {
  max-width: 680px;
  font-size: 17px;
  color: #2b2a26;
  margin-bottom: 40px;
}
.content.alt {
  background: #0f0e0c;
  color: #e8e3d8;
  max-width: none;
  padding: 90px 5vw;
  margin: 0;
}
.content.alt h2 { color: #fff; }
.content.alt > p { color: #b8b2a4; }

.content.dark {
  background: var(--dark);
  color: #fff;
  max-width: none;
  padding: 90px 5vw;
  margin: 0;
}
.content.dark h2 { color: #fff; margin-bottom: 40px; }

/* PATTERNS GRID */
.pattern-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.pattern {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 32px;
  transition: transform .3s, box-shadow .3s;
}
.pattern:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(0,0,0,0.15);
}
.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.tag-1 { background: #fff0e0; color: var(--accent); }
.tag-2 { background: #e7f0e8; color: #3b7c4a; }
.tag-3 { background: #e6e8fb; color: #4851c7; }
.tag-4 { background: #fdf2cf; color: #946c00; }
.pattern h3 {
  font-family: var(--serif);
  font-size: 24px;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.pattern p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 16px;
}
.pattern em { color: var(--ink); font-style: italic; }
.pattern blockquote {
  border-left: 3px solid var(--accent);
  padding: 8px 0 8px 14px;
  font-family: var(--serif);
  font-style: italic;
  color: #3a3730;
  font-size: 15px;
}
.pattern code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--accent-soft);
  padding: 1px 6px;
  border-radius: 3px;
}

/* TIMELINE */
.timeline {
  list-style: none;
  max-width: 680px;
  position: relative;
  padding-left: 30px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 9px; top: 8px; bottom: 8px;
  width: 2px;
  background: rgba(255,255,255,0.15);
}
.timeline li {
  position: relative;
  padding-bottom: 32px;
}
.timeline li:last-child { padding-bottom: 0; }
.dot {
  position: absolute;
  left: -30px; top: 6px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: 4px solid #0f0e0c;
}
.timeline h4 {
  font-family: var(--serif);
  font-size: 22px;
  color: #fff;
  margin-bottom: 6px;
}
.timeline p {
  color: #b8b2a4;
  font-size: 15px;
}
.timeline code {
  font-family: var(--mono);
  font-size: 13px;
  color: #ffcbaf;
  background: rgba(199,90,42,0.18);
  padding: 1px 6px;
  border-radius: 3px;
}

/* RECIPES */
.recipe {
  border-top: 1px solid var(--line);
  padding: 20px 0;
}
.recipe:last-of-type { border-bottom: 1px solid var(--line); }
.recipe summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--serif);
  font-size: 24px;
  color: var(--ink);
  padding: 8px 0;
  position: relative;
}
.recipe summary::-webkit-details-marker { display: none; }
.recipe summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 22px;
  color: var(--accent);
  transition: transform .3s;
}
.recipe[open] summary::after {
  transform: rotate(45deg);
}
.r-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 4px;
}
.recipe pre {
  margin-top: 18px;
  padding: 24px;
  background: #0f0e0c;
  color: #e8e3d8;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.7;
  overflow-x: auto;
}

/* PITFALLS */
.pitfall-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 960px;
}
.pitfall {
  padding: 28px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  transition: background .3s, border-color .3s;
}
.pitfall:hover {
  background: rgba(255,255,255,0.07);
  border-color: var(--accent);
}
.pitfall h4 {
  font-family: var(--serif);
  font-size: 20px;
  margin-bottom: 10px;
  color: #ffcbaf;
}
.pitfall p {
  color: #c8c2b4;
  font-size: 14.5px;
}
.pitfall code {
  font-family: var(--mono);
  font-size: 13px;
  background: rgba(255,255,255,0.08);
  padding: 1px 6px;
  border-radius: 3px;
}

/* NEXT */
.next {
  max-width: 760px;
  margin: 100px auto;
  padding: 60px 5vw;
  text-align: center;
  border-top: 1px solid var(--line);
}
.next h2 {
  font-family: var(--serif);
  font-size: 36px;
  margin: 12px 0 14px;
}
.next p { color: var(--muted); max-width: 520px; margin: 0 auto 28px; }
.next-btn {
  display: inline-block;
  padding: 14px 28px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  border-radius: 999px;
  transition: transform .2s, background .2s;
}
.next-btn:hover { transform: translateY(-2px); background: var(--accent); }

/* FOOTER */
.foot {
  border-top: 1px solid var(--line);
  padding: 30px 5vw;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.foot p { margin: 4px 0; }

/* RESPONSIVE */
@media (max-width: 780px) {
  .top-inner { grid-template-columns: 1fr auto; }
  .top nav { display: none; }
  .progress { display: none; }
  .pattern-grid, .pitfall-grid { grid-template-columns: 1fr; }
  .meta-row { flex-direction: column; align-items: flex-start; }
}