:root {
  --zemin: #0b1020;
  --yuzey: #131a2e;
  --yazi: #eef1f8;
  --soluk: #a5b0c9;
  --vurgu: #ff8a3d;
  --cizgi: #24304d;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--zemin);
  color: var(--yazi);
  font: 17px/1.65 "Segoe UI", system-ui, -apple-system, sans-serif;
}
a { color: var(--vurgu); }
.kap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { border-bottom: 1px solid var(--cizgi); }
header .kap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 18px; padding-bottom: 18px; flex-wrap: wrap; }
.marka { display: flex; align-items: center; gap: 10px; color: var(--yazi); text-decoration: none; font-weight: 700; font-size: 20px; }
.marka img { width: 36px; height: 36px; border-radius: 50%; }
nav { display: flex; gap: 18px; font-size: 15px; }
nav a { color: var(--soluk); text-decoration: none; }
nav a:hover { color: var(--yazi); }
main { padding: 48px 0 64px; }
h1 { font-size: 36px; line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: 22px; margin: 36px 0 8px; }
.alt { color: var(--soluk); font-size: 19px; margin: 0 0 28px; }
.kartlar { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin: 28px 0; }
.kart { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: 12px; padding: 18px; }
.kart b { display: block; margin-bottom: 4px; }
.kart span { color: var(--soluk); font-size: 15px; }
.dugme { display: inline-block; background: var(--vurgu); color: #1c0d00; font-weight: 700; padding: 10px 18px; border-radius: 8px; text-decoration: none; margin: 4px 8px 4px 0; }
.dugme.ikincil { background: transparent; color: var(--yazi); border: 1px solid var(--cizgi); }
footer { border-top: 1px solid var(--cizgi); color: var(--soluk); font-size: 14px; }
footer .kap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 20px; padding-bottom: 28px; }
footer a { color: var(--soluk); }
.tarih { color: var(--soluk); font-size: 14px; }
ul { padding-left: 22px; }