:root {
  --bg: #f6f6f1; --yuzey: #ffffff; --yazi: #12201a; --soluk: #56635c; --cizgi: #e3e5de;
  --marka: #0d3b2e; --marka-2: #145c45; --vurgu-zemin: #e9f5ee;
  --ok: #157a4a; --ok-zemin: #e7f5ec; --uyari: #9a6200; --uyari-zemin: #fdf3dc; --hata: #b42318; --hata-zemin: #fdecea;
  --golge: 0 1px 2px rgba(18,32,26,.05), 0 8px 28px rgba(18,32,26,.07);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--yazi);
  font: 16px/1.6 "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
a { color: inherit; }
.kap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.dar { max-width: 820px; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -.012em; margin: 0; }
h1 { font-size: clamp(32px, 5vw, 52px); font-weight: 800; }
h2 { font-size: clamp(25px, 3.2vw, 34px); font-weight: 800; }
h3 { font-size: 18px; font-weight: 700; }
.bolum { padding: 72px 0; }
.bolum-ust { max-width: 680px; margin-bottom: 32px; }
.bolum-ust p, .giris { color: var(--soluk); font-size: 17px; margin: 12px 0 0; }
.etiket { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--marka-2); margin-bottom: 10px; }

.nav { position: sticky; top: 0; z-index: 20; background: rgba(246,246,241,.9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--cizgi); }
.nav .kap { display: flex; align-items: center; justify-content: space-between; height: 62px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; text-decoration: none; }
.logo-ikon { width: 30px; height: 30px; border-radius: 8px; background: var(--marka); color: #fff; display: grid; place-items: center; font-size: 14px; font-weight: 800; flex: none; }
.nav-linkler { display: flex; gap: 22px; font-size: 15px; font-weight: 600; color: var(--soluk); }
.nav-linkler a { text-decoration: none; }
.nav-linkler a:hover { color: var(--yazi); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; font-weight: 700; font-family: inherit;
  border-radius: 12px; padding: 13px 20px; font-size: 15.5px; border: 0; cursor: pointer; transition: transform .12s, background .12s; }
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: .55; cursor: default; transform: none; }
.btn-ana { background: var(--marka); color: #fff; box-shadow: 0 6px 18px rgba(13,59,46,.2); }
.btn-ana:hover { background: var(--marka-2); }
.btn-ikinci { background: var(--yuzey); color: var(--yazi); border: 1px solid var(--cizgi); }
.btn-kucuk { padding: 9px 14px; font-size: 14.5px; border-radius: 10px; }
.btnler { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.kart { background: var(--yuzey); border: 1px solid var(--cizgi); border-radius: var(--radius); padding: 24px; box-shadow: var(--golge); }
.izgara { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.izgara-3 { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.kart p { color: var(--soluk); margin: 8px 0 0; font-size: 15px; }
.kart .link { display: inline-block; margin-top: 14px; font-weight: 700; color: var(--marka-2); text-decoration: none; font-size: 15px; }
.kart .link:hover { text-decoration: underline; }
a.kart { text-decoration: none; display: block; transition: transform .12s, border-color .12s; }
a.kart:hover { transform: translateY(-2px); border-color: #c9cfc4; }

.hero { padding: 72px 0 56px; }
.hero .giris { font-size: 19px; max-width: 700px; }
.adimlar { counter-reset: a; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.adimlar .kart::before { counter-increment: a; content: counter(a); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--vurgu-zemin); color: var(--marka-2); font-weight: 800; margin-bottom: 12px; }
.not { background: var(--vurgu-zemin); border-radius: 14px; padding: 14px 18px; color: var(--marka); font-size: 15px; }
.alt { border-top: 1px solid var(--cizgi); padding: 28px 0 40px; color: var(--soluk); font-size: 14px; }
.alt .kap { display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; }

/* araç sayfaları */
.arac { margin-top: 26px; }
.girdi-satir { display: flex; gap: 10px; flex-wrap: wrap; }
.girdi { flex: 1 1 260px; font: inherit; font-size: 16px; padding: 13px 15px; border: 1px solid var(--cizgi); border-radius: 12px; background: #fff; color: var(--yazi); }
.girdi:focus, .btn:focus-visible { outline: 3px solid rgba(20,92,69,.25); outline-offset: 1px; }
.sonuc { margin-top: 22px; }
.puan { display: flex; align-items: center; gap: 18px; margin-bottom: 16px; }
.puan-sayi { font-size: 44px; font-weight: 800; line-height: 1; }
.satir { display: grid; grid-template-columns: 92px 1fr; gap: 6px 14px; padding: 14px 0; border-top: 1px solid var(--cizgi); }
.satir:first-of-type { border-top: 0; }
.durum { font-size: 12.5px; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; border-radius: 8px; padding: 3px 8px; text-align: center; align-self: start; }
.durum.ok { background: var(--ok-zemin); color: var(--ok); }
.durum.warn { background: var(--uyari-zemin); color: var(--uyari); }
.durum.fail { background: var(--hata-zemin); color: var(--hata); }
.durum.info { background: #eef0eb; color: var(--soluk); }
.satir b { display: block; font-size: 15px; }
.satir .ne { color: var(--soluk); font-size: 14.5px; margin-top: 2px; }
.kayit { font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; background: #f3f4ef; border-radius: 10px; padding: 10px 12px; overflow-wrap: anywhere; margin: 6px 0 0; }
.hata-kutu { background: var(--hata-zemin); color: var(--hata); border-radius: 12px; padding: 12px 16px; margin-top: 16px; }
.birak { display: block; cursor: pointer; border: 2px dashed #c9cfc4; border-radius: var(--radius); padding: 34px 20px; text-align: center; background: #fbfbf8; transition: border-color .12s, background .12s; }
.birak.ustunde { border-color: var(--marka-2); background: var(--vurgu-zemin); }
.birak p { color: var(--soluk); margin: 6px 0 0; }
.tablo-kap { overflow-x: auto; margin-top: 16px; border: 1px solid var(--cizgi); border-radius: 12px; background: #fff; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 9px 12px; border-bottom: 1px solid var(--cizgi); text-align: left; white-space: nowrap; }
th { background: #f3f4ef; font-weight: 700; }
td.sayi, th.sayi { text-align: right; font-variant-numeric: tabular-nums; }
.ozet { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 14px; font-size: 15px; }
.ozet b { font-size: 18px; }
.sss details { border-top: 1px solid var(--cizgi); padding: 14px 0; }
.sss summary { font-weight: 700; cursor: pointer; }
.sss p { color: var(--soluk); margin: 8px 0 0; }

@media (max-width: 720px) {
  .nav-linkler { display: none; }
  .bolum { padding: 52px 0; }
  .hero { padding: 48px 0 36px; }
  .satir { grid-template-columns: 1fr; }
  .durum { justify-self: start; }
}