:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --panel: #f6f7f9;
  --border: #e2e5ea;
  --text: #16181d;
  --muted: #5b6270;
  --link: #1f5fd0;
  --code-bg: #f2f3f6;
  --l0: #6b7280;
  --l1: #1f7a4d;
  --l2: #9a6200;
  --l3: #b4232c;
  --radius: 10px;
  --side: 264px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1013;
    --panel: #15181d;
    --border: #262b33;
    --text: #e7e9ee;
    --muted: #9aa3b2;
    --link: #7aa7f5;
    --code-bg: #14171c;
    --l0: #9aa3b2;
    --l1: #4cc38a;
    --l2: #e0a33c;
    --l3: #f06a72;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, kbd { font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace; font-size: 0.89em; }
code { background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 4px; }
pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; overflow-x: auto; }
pre code { background: none; padding: 0; }

html[data-lang="tr"] [data-lang-block="en"],
html[data-lang="en"] [data-lang-block="tr"] { display: none; }

/* The page: one fixed sidebar on the left, everything else on the right. */
.shell { display: grid; grid-template-columns: var(--side) minmax(0, 1fr); min-height: 100vh; }

aside.side {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px 14px 14px;
  border-right: 1px solid var(--border);
  background: var(--panel);
}
aside.side .brand { font-weight: 650; font-size: 17px; color: var(--text); letter-spacing: -0.01em; padding: 0 8px; }
aside.side .brand span { display: block; font-size: 12px; font-weight: 400; color: var(--muted); letter-spacing: 0; }
aside.side input[type="search"] {
  width: 100%;
  padding: 7px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 14px;
}
aside.side h4 { margin: 4px 8px 0; font-size: 11px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); }
aside.side nav { overflow-y: auto; flex: 1; margin: 0 -4px; padding: 0 4px; }
aside.side ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1px; }
aside.side ol a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 13.5px;
}
aside.side ol a:hover { background: var(--bg); color: var(--text); text-decoration: none; }
aside.side ol a[aria-current="page"] { background: var(--text); color: var(--bg); font-weight: 600; }
aside.side ol a .dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
aside.side .foot { border-top: 1px solid var(--border); padding: 10px 8px 0; font-size: 12.5px; color: var(--muted); display: flex; gap: 12px; }

.main { min-width: 0; }

header.top {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
header.top .inner { display: flex; align-items: center; gap: 14px; height: 54px; padding: 0 clamp(20px, 4vw, 48px); }
header.top a { color: var(--muted); font-size: 14px; }
header.top .langs { margin-left: auto; }

.langs { display: flex; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.langs button { border: 0; background: transparent; color: var(--muted); font: inherit; font-size: 13px; padding: 3px 11px; cursor: pointer; }
html[data-lang="tr"] .langs button[data-set="tr"],
html[data-lang="en"] .langs button[data-set="en"] { background: var(--link); color: #fff; }

.wrap { max-width: 980px; padding: 0 clamp(20px, 4vw, 48px); }

.hero { padding: 54px 0 34px; }
.hero h1 { font-size: 40px; line-height: 1.15; margin: 0 0 10px; letter-spacing: -0.02em; }
.hero p.tagline { font-size: 19px; color: var(--muted); margin: 0 0 18px; }
.hero p.lead { max-width: 70ch; margin: 0; }
.counts { margin-top: 24px; display: flex; gap: 26px; flex-wrap: wrap; color: var(--muted); font-size: 14px; }
.counts b { color: var(--text); font-size: 22px; display: block; font-weight: 650; }

section { padding: 34px 0; border-top: 1px solid var(--border); }
section h2 { font-size: 23px; margin: 0 0 6px; letter-spacing: -0.01em; }
section p.sub { color: var(--muted); margin: 0 0 18px; max-width: 75ch; }

.controls { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 18px; }
.filters { display: flex; gap: 6px; flex-wrap: wrap; }
.filters button {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  border-radius: 999px;
  padding: 5px 13px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.filters button[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }

.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

.card { border: 1px solid var(--border); border-radius: var(--radius); padding: 15px 17px; background: var(--panel); display: flex; flex-direction: column; gap: 9px; }
.card h3 { margin: 0; font-size: 17px; }
.card h3 a { color: var(--text); }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card .meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: auto; padding-top: 4px; }
.card .tags { display: flex; gap: 6px; flex-wrap: wrap; }
.card .tags span { font-size: 12px; color: var(--muted); background: var(--code-bg); border-radius: 999px; padding: 2px 8px; }

.reach { font-size: 12px; font-weight: 650; border-radius: 4px; padding: 2px 7px; color: #fff; }
.reach.L0, .dot.L0 { background: var(--l0); }
.reach.L1, .dot.L1 { background: var(--l1); }
.reach.L2, .dot.L2 { background: var(--l2); }
.reach.L3, .dot.L3 { background: var(--l3); }

.version { font-size: 12px; color: var(--muted); }
.empty { color: var(--muted); padding: 24px 0; }

dl.reach-list { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; margin: 0; }
dl.reach-list dt, dl.reach-list dd { margin: 0; }
dl.reach-list dd { color: var(--muted); }

article.doc { padding: 34px 0 60px; max-width: 860px; }
article.doc h1 { font-size: 32px; margin: 0 0 6px; letter-spacing: -0.02em; }
article.doc h2 { font-size: 21px; margin: 32px 0 10px; }
article.doc h3 { font-size: 17px; margin: 24px 0 8px; }
article.doc table { border-collapse: collapse; width: 100%; margin: 14px 0; font-size: 15px; display: block; overflow-x: auto; }
article.doc th, article.doc td { border: 1px solid var(--border); padding: 7px 10px; text-align: left; }
article.doc th { background: var(--panel); }
article.doc blockquote { margin: 14px 0; padding: 4px 16px; border-left: 3px solid var(--border); color: var(--muted); }
article.doc img { max-width: 100%; }

.docbar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 20px; font-size: 14px; color: var(--muted); }

footer.bottom { border-top: 1px solid var(--border); padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer.bottom p { margin: 4px 0; }

.side-toggle { display: none; }

@media (max-width: 860px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  aside.side { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--border); }
  aside.side nav { max-height: 240px; }
  .hero { padding: 34px 0 24px; }
  .hero h1 { font-size: 30px; }
}