/* mertsahin.ai — minimal */
:root {
  --bg: #fdfdfc;
  --fg: #26292f;
  --ink: #111318;
  --muted: #6b7079;
  --line: #e8e7e3;
  --code-bg: #f4f3f0;
  --accent: #2456c9;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111214;
    --fg: #d5d8dd;
    --ink: #f2f3f5;
    --muted: #8d939c;
    --line: #26282d;
    --code-bg: #1a1c20;
    --accent: #8db1ff;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.7 var(--sans); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--muted) 55%, transparent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
strong { color: var(--ink); font-weight: 600; }

.col { max-width: 680px; margin: 0 auto; padding: 0 22px; }
.muted { color: var(--muted); }

/* top bar */
.top .col { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding-top: 28px; padding-bottom: 8px; }
.name { font-weight: 600; text-decoration: none; color: var(--ink); }
.top nav { display: flex; gap: 18px; font-size: 15px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }

/* intro */
main section { margin: 56px 0; }
.intro { margin-top: 56px; }
.avatar { width: 72px; height: 72px; margin-bottom: 22px; border-radius: 50%; overflow: hidden; display: grid; place-items: center; background: var(--ink); color: var(--bg); font-weight: 600; font-size: 22px; letter-spacing: .02em; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
h1 { margin: 0; color: var(--ink); font-size: 28px; line-height: 1.25; font-weight: 650; letter-spacing: -0.015em; }
.role { margin: 4px 0 26px; color: var(--muted); font-size: 16px; }
.hello { color: var(--ink); font-size: 20px; line-height: 1.55; font-weight: 500; letter-spacing: -0.005em; }
.work { margin: 0 0 18px; padding-left: 20px; }
.work li { margin: 8px 0; }
.work li::marker { color: var(--muted); }

h2 { margin: 0 0 6px; color: var(--ink); font-size: 15px; font-weight: 650; letter-spacing: .02em; }
h2 + .muted { margin-top: 0; }

/* post lists */
.list { margin: 16px 0; padding: 0; list-style: none; }
.list li { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.list li:first-child { border-top: 1px solid var(--line); }
.list a { text-decoration: none; color: var(--ink); }
.list a:hover { color: var(--accent); }
.list time { flex: none; color: var(--muted); font: 13.5px/1.7 var(--mono); }
.year { margin: 34px 0 0; color: var(--muted); font: 500 14px/1 var(--mono); }

.exp { margin: 14px 0 0; padding: 0; list-style: none; }
.exp li { display: grid; grid-template-columns: 120px 1fr; gap: 14px; padding: 5px 0; }
.exp .when { color: var(--muted); font: 13.5px/1.9 var(--mono); }

/* article */
.post-head { margin: 56px 0 34px; }
.post-head h1 { font-size: clamp(28px, 4.4vw, 36px); line-height: 1.2; letter-spacing: -0.02em; }
.meta { margin: 12px 0 0; color: var(--muted); font-size: 14.5px; }
.prose { font-size: 17.5px; line-height: 1.78; }
.prose > :first-child { margin-top: 0; }
.prose h2 { margin: 2.2em 0 .5em; font-size: 22px; letter-spacing: -0.01em; }
.prose h3 { margin: 1.9em 0 .4em; color: var(--ink); font-size: 18px; font-weight: 650; }
.prose p, .prose ul, .prose ol { margin: 0 0 1.05em; }
.prose li { margin: .3em 0; }
.prose blockquote { margin: 1.6em 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--ink); color: var(--fg); }
.prose blockquote p:last-child, .prose blockquote ol:last-child { margin-bottom: 0; }
.prose code { padding: .1em .35em; border-radius: 5px; background: var(--code-bg); font: .85em/1.4 var(--mono); }
.prose pre { margin: 1.4em 0; padding: 16px 18px; overflow-x: auto; border-radius: 8px; background: var(--code-bg); border: 1px solid var(--line); font: 13.5px/1.65 var(--mono); }
.prose pre code { padding: 0; background: none; font: inherit; }
.prose table { width: 100%; margin: 1.4em 0; border-collapse: collapse; font-size: 15.5px; }
.prose th, .prose td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { color: var(--ink); font-weight: 600; }
.prose hr { margin: 2.4em 0; border: 0; border-top: 1px solid var(--line); }
.prose img { border-radius: 8px; border: 1px solid var(--line); }
.post-foot { margin: 56px 0; padding-top: 22px; border-top: 1px solid var(--line); }
.post-foot h2 { margin-top: 30px; }

/* footer */
.foot .col { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 22px; padding-bottom: 44px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.foot a { color: var(--muted); }

/* 404 + misc */
.hero { padding: 80px 0; }
.lede { color: var(--muted); }
.actions { display: flex; gap: 14px; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .hello { font-size: 18px; }
  .list li { flex-direction: column; gap: 0; }
  .exp li { grid-template-columns: 1fr; gap: 0; }
  .prose { font-size: 16.5px; }
}