:root {
  --bg: #F3F6FA;
  --surface: #FFFFFF;
  --ink: #0E1B2E;
  --muted: #55637A;
  --line: #DAE2EC;
  --accent: #1F8CCB;
  --link: #14679B;
  --on-accent: #FFFFFF;
  --font: "Manrope", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 1.0625rem/1.7 var(--font);
}

h1, h2, h3, p, ul { margin: 0; }
h1, h2, h3 { line-height: 1.15; text-wrap: balance; }

a { color: var(--link); text-underline-offset: 0.2em; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

img { max-width: 100%; height: auto; }

.site { max-width: 68rem; margin: 0 auto; padding: 0 1.25rem 2.5rem; }

/* Üst bar */
.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 2rem;
  padding: 1.5rem 0;
}
.top .name { font-weight: 700; font-size: 1.1rem; color: var(--ink); text-decoration: none; }
.top nav { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 1.6rem; }
.top nav a { color: var(--ink); text-decoration: none; font-weight: 500; font-size: 0.98rem; }
.top nav a:hover,
.top nav a[aria-current] { color: var(--link); }
.top nav .lang { color: var(--muted); font-size: 0.88rem; }

/* Ana sayfa */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2.5rem 4rem;
  align-items: center;
  padding: 3.5rem 0 4.5rem;
}
.hero-text { display: grid; gap: 1.4rem; }
.hero h1 { font-size: clamp(2.5rem, 5.4vw, 4rem); font-weight: 800; letter-spacing: -0.025em; line-height: 1.05; }
.eyebrow { color: var(--link); font-weight: 700; font-size: 0.95rem; }
.lead { color: var(--muted); font-size: 1.2rem; line-height: 1.6; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.8rem 1.4rem; }
.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: 10px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
  text-decoration: none;
}
.photo {
  display: grid;
  place-items: center;
  width: 12.5rem;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
  color: var(--muted);
  font-weight: 700;
  font-size: 2rem;
}
.photo img { width: 100%; height: 100%; object-fit: cover; }

.split {
  display: grid;
  grid-template-columns: 15rem minmax(0, 40rem);
  gap: 1rem 3rem;
  padding-bottom: 4rem;
}
.split > h2, .page h2 { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.015em; }
.prose { display: grid; gap: 1rem; }

.areas {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  padding-bottom: 4rem;
}
.area {
  display: grid;
  gap: 0.5rem;
  align-content: start;
  min-width: 0;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
}
.area:hover { border-color: var(--accent); }
.area h2 { font-size: 1.25rem; }
.area p { color: var(--muted); font-size: 1rem; line-height: 1.55; }
.area .go { color: var(--link); font-weight: 700; font-size: 0.95rem; }

.posts { list-style: none; padding: 0; }
.posts li { display: flex; gap: 1.25rem; padding: 0.7rem 0; border-top: 1px solid var(--line); }
.posts time { flex: 0 0 5.8rem; color: var(--muted); font-size: 0.95rem; font-variant-numeric: tabular-nums; }
.posts a { color: var(--ink); text-decoration: none; font-weight: 500; }
.posts a:hover { color: var(--link); }
.posts .desc { display: block; color: var(--muted); font-size: 0.95rem; line-height: 1.5; }
.more { margin-top: 1rem; font-weight: 700; font-size: 0.95rem; }

/* İç sayfalar ve yazılar */
.page { max-width: 44rem; padding: 2.5rem 0 4rem; }
.page h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 1.5rem; }
.page h2 { margin: 2.2rem 0 0.8rem; }
.page h3 { font-size: 1.2rem; margin: 1.8rem 0 0.6rem; }
.page p, .page ul, .page ol { margin-bottom: 1rem; }
.page .posts { margin-bottom: 0; }
.page .meta { color: var(--muted); margin-top: -1rem; }
.page .back { margin-top: 3rem; }
.page pre {
  overflow-x: auto;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  font-size: 0.9rem;
}
.page blockquote { margin: 1.25rem 0; padding-left: 1rem; border-left: 3px solid var(--line); color: var(--muted); }

/* Proje dalları */
.branches { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.page .branch {
  display: grid;
  gap: 0.5rem;
  align-content: start;
  min-width: 0;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}
.page .branch h2 { margin: 0; font-size: 1.25rem; letter-spacing: 0; }
.page .branch p { margin: 0; color: var(--muted); font-size: 1rem; line-height: 1.55; }
.page .branch ul { list-style: none; margin: 0.6rem 0 0; padding: 0; display: grid; gap: 0.9rem; }
.page .branch h3 { margin: 0 0 0.2rem; font-size: 1.05rem; }

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}
.site-footer .links { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; }

@media (max-width: 48rem) {
  .hero, .split, .areas, .branches { grid-template-columns: minmax(0, 1fr); }
  .hero { padding: 2rem 0 3rem; }
  .photo { order: -1; width: 9rem; }
}