:root {
  --zemin: #f6f6f3;
  --yuzey: #ffffff;
  --yuzey-soluk: #f1f1ed;
  --yazi: #1c1c1a;
  --yazi-soluk: #66655f;
  --vurgu: #1f5b4b;
  --vurgu-koyu: #184a3d;
  --cizgi: #dedcd4;
  --kose: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--zemin);
  color: var(--yazi);
  font-family:
    'Segoe UI',
    system-ui,
    -apple-system,
    Roboto,
    Arial,
    sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

a {
  color: var(--vurgu);
}

.kap {
  width: min(1040px, 100% - 40px);
  margin-inline: auto;
}

.kap.dar {
  width: min(720px, 100% - 40px);
}

.ust {
  background: var(--yuzey);
  border-bottom: 1px solid var(--cizgi);
}

.ust-ic {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 12px;
  flex-wrap: wrap;
}

.marka {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--yazi);
  font-weight: 700;
  text-decoration: none;
}

.marka img {
  border-radius: 50%;
}

.menu {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 15px;
}

.menu a {
  color: var(--yazi-soluk);
  text-decoration: none;
}

.menu a:hover {
  color: var(--vurgu);
}

.giris {
  padding-block: 72px 64px;
}

.ust-yazi {
  margin: 0 0 12px;
  color: var(--vurgu);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 20px;
  max-width: 18ch;
  font-size: clamp(32px, 5vw, 50px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.ozet {
  margin: 0 0 28px;
  max-width: 62ch;
  color: var(--yazi-soluk);
  font-size: 19px;
}

.dugme {
  display: inline-block;
  padding: 14px 26px;
  border-radius: var(--kose);
  background: var(--vurgu);
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
}

.dugme:hover {
  background: var(--vurgu-koyu);
}

.not {
  margin: 14px 0 0;
  color: var(--yazi-soluk);
  font-size: 14px;
}

.bolum {
  padding-block: 56px;
}

.bolum.acik {
  background: var(--yuzey-soluk);
}

h2 {
  margin: 0 0 24px;
  font-size: 28px;
  letter-spacing: -0.01em;
}

h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.adimlar,
.kartlar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.adimlar {
  counter-reset: adim;
}

.adimlar li,
.kartlar li {
  padding: 22px;
  border: 1px solid var(--cizgi);
  border-radius: var(--kose);
  background: var(--yuzey);
}

.adimlar li::before {
  counter-increment: adim;
  content: counter(adim);
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--vurgu);
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
}

.adimlar p,
.kartlar p {
  margin: 0;
  color: var(--yazi-soluk);
  font-size: 16px;
}

.iletisim {
  margin: 0;
  border: 1px solid var(--cizgi);
  border-radius: var(--kose);
  background: var(--yuzey);
}

.iletisim div {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--cizgi);
}

.iletisim div:last-child {
  border-bottom: 0;
}

.iletisim dt {
  color: var(--yazi-soluk);
  font-size: 15px;
}

.iletisim dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.alt {
  border-top: 1px solid var(--cizgi);
  background: var(--yuzey);
  color: var(--yazi-soluk);
  font-size: 14px;
}

.alt-ic {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-block: 20px;
}

.alt p {
  margin: 0;
}

.metin h2 {
  margin-top: 36px;
  font-size: 21px;
}

.metin ul {
  padding-left: 20px;
}

.metin h1 {
  max-width: none;
  font-size: clamp(28px, 4vw, 38px);
}

@media (max-width: 520px) {
  .iletisim div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}