:root {
  --bg: #f7f5f0;
  --text: #1c1b19;
  --muted: #6b675f;
  --rule: #dcd8ce;
  --accent: #a8431f;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141413; --text: #ecebe6; --muted: #9a968c; --rule: #2e2d2a;
    --accent: #e59a6f;
  }
}
:root[data-theme="dark"] {
  --bg: #141413; --text: #ecebe6; --muted: #9a968c; --rule: #2e2d2a;
  --accent: #e59a6f;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 3px; }
a:hover { color: var(--accent); text-decoration-color: currentColor; }

.page { max-width: 820px; margin: 0 auto; padding: 0 24px; }

/* Üst satır */
.top {
  display: flex; align-items: center; gap: 20px;
  padding: 24px 0;
  font-family: var(--mono); font-size: 13px; color: var(--muted);
}
.top a { text-decoration: none; }
.top .home { color: var(--text); }
.top nav { display: flex; gap: 18px; margin-left: auto; }
.controls { display: flex; align-items: center; gap: 10px; }
.top button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

.lang { display: flex; padding: 2px; border: 1px solid var(--rule); border-radius: 999px; }
.lang button {
  padding: 4px 10px; border-radius: 999px;
  font-family: var(--sans); font-size: 12px; font-weight: 500; letter-spacing: 0.06em;
}
.lang button:hover { color: var(--text); }
.lang button[aria-pressed="true"] { background: var(--text); color: var(--bg); }

#theme {
  display: grid; place-items: center; width: 32px; height: 32px;
  border: 1px solid var(--rule); border-radius: 50%; color: var(--text);
}
#theme:hover { border-color: var(--muted); }
.top button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Giriş */
.intro { padding: 72px 0 80px; }
h1 { font-size: clamp(38px, 7vw, 60px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 700; }
.lede { margin-top: 20px; max-width: 30em; font-size: 21px; line-height: 1.45; }
.where { margin-top: 14px; font-family: var(--mono); font-size: 13px; color: var(--muted); }

/* Bölümler: solda etiket, sağda içerik */
.row {
  display: grid; grid-template-columns: 150px 1fr; gap: 24px;
  padding: 36px 0 44px;
  border-top: 1px solid var(--rule);
  scroll-margin-top: 12px;
}
h2 { font-family: var(--mono); font-size: 13px; font-weight: 400; color: var(--muted); padding-top: 5px; }
.body { min-width: 0; }
.body > p + p { margin-top: 14px; }

/* Kayıtlar (proje, eğitim) */
.entry + .entry { margin-top: 36px; }
.entry header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 4px 16px; }
h3 { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
.ext, .status, .stack { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.ext::after { content: " ↗"; }
.stack { margin: 4px 0 10px; }
.entry ul { padding-left: 18px; }
.entry li + li { margin-top: 6px; }
.entry li::marker { color: var(--muted); }

/* Beceriler */
.skills { display: grid; grid-template-columns: 190px 1fr; gap: 10px 20px; }
.skills dt { color: var(--muted); }

/* İletişim */
.links { display: flex; flex-wrap: wrap; gap: 8px 28px; font-size: 18px; }

.foot { padding: 28px 0 56px; border-top: 1px solid var(--rule); font-family: var(--mono); font-size: 12px; color: var(--muted); }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .top { flex-wrap: wrap; gap: 10px 16px; padding: 20px 0; }
  .top nav { order: 3; width: 100%; margin-left: 0; gap: 14px; flex-wrap: wrap; }
  .controls { margin-left: auto; }
  .intro { padding: 44px 0 52px; }
  .lede { font-size: 19px; }
  .row { grid-template-columns: 1fr; gap: 12px; padding: 28px 0 36px; }
  h2 { padding-top: 0; }
  .skills { grid-template-columns: 1fr; gap: 2px; }
  .skills dd { margin-bottom: 12px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }