:root {
  --bg: #f6f7fb; --surface: #ffffff; --text: #1f2a44; --muted: #5b6478; --border: #e3e6ee;
  --primary: #4f46e5; --warn-bg: #fff4d6; --warn-border: #f0b429; --warn-text: #6b4a00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11141c; --surface: #1a1f2b; --text: #e7eaf2; --muted: #a3abbd; --border: #2c3344;
    --primary: #8b85ff; --warn-bg: #3a2f12; --warn-border: #c99a2e; --warn-text: #f5dfa6;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; }
header .brand { font-weight: 800; color: var(--primary); text-decoration: none; }
.lang-switch button { border: 1px solid var(--border); background: var(--surface); color: var(--text); padding: 6px 12px; border-radius: 8px; font-weight: 700; cursor: pointer; }
.lang-switch button[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: #fff; }
.draft { background: var(--warn-bg); border: 2px solid var(--warn-border); color: var(--warn-text); border-radius: 12px; padding: 14px 16px; margin: 0 0 24px; font-weight: 600; }
article { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 20px; }
h1 { font-size: 26px; margin: 0 0 4px; }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 20px; }
h2 { font-size: 18px; margin: 28px 0 8px; }
.todo { color: var(--muted); font-style: italic; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; vertical-align: top; padding: 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 700; }
a { color: var(--primary); }
footer { margin-top: 24px; color: var(--muted); font-size: 13px; text-align: center; }
[data-lang] { display: none; }
html[lang="tr"] [data-lang="tr"], html[lang="en"] [data-lang="en"] { display: block; }