:root {
  --zemin: #f4f8f6;
  --kart: #ffffff;
  --yazi: #17231f;
  --soluk: #4d5d57;
  --vurgu: #1d6650;
  --asil: #1f5c4b;
  --asil-yazi: #ffffff;
  --yumusak: #d9efe6;
  --cizgi: #dbe5e0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --zemin: #101814;
    --kart: #18231e;
    --yazi: #e6efea;
    --soluk: #a7b8b0;
    --vurgu: #86d3b8;
    --asil: #86d3b8;
    --asil-yazi: #0e1f18;
    --yumusak: #1f3a30;
    --cizgi: #2a3a33;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--zemin);
  color: var(--yazi);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-wrap: break-word;
}

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

a:focus-visible {
  outline: 3px solid var(--vurgu);
  outline-offset: 2px;
}

.kap {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Üst şerit */

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

.ust-ic {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  color: var(--yazi);
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

.logo img {
  border-radius: 8px;
}

.ust-sag {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dil {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  min-height: 48px;
  font-weight: 600;
  text-decoration: none;
}

.dil:hover {
  text-decoration: underline;
}

/* Düğmeler: asıl iş dolu, ikincil çerçeveli */

.dugme {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 22px;
  border: 2px solid var(--asil);
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
}

.dugme-asil {
  background: var(--asil);
  color: var(--asil-yazi);
}

.dugme-ikincil {
  background: transparent;
  color: var(--vurgu);
}

.dugme:hover {
  filter: brightness(1.08);
}

.dugme-kucuk {
  padding: 8px 16px;
  white-space: nowrap;
  font-size: 0.9375rem;
}

.dugmeler {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* İçerik */

main.kap {
  padding-top: 8px;
  padding-bottom: 48px;
}

.giris {
  padding: 48px 0 16px;
}

.giris h1 {
  margin: 0;
  font-size: 2.75rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.giris h1 + .tek-cumle {
  margin-top: 16px;
}

.slogan {
  margin: 4px 0 20px;
  color: var(--vurgu);
  font-size: 1.25rem;
  font-weight: 600;
}

.tek-cumle {
  margin: 0 0 12px;
  max-width: 40em;
  font-size: 1.1875rem;
}

.paragraf {
  margin: 0;
  max-width: 44em;
  color: var(--soluk);
}

.bolum {
  padding-top: 40px;
}

.bolum h2 {
  margin: 0 0 16px;
  font-size: 1.5rem;
}

.bolum > p {
  margin: 0 0 16px;
  max-width: 44em;
}

.soluk {
  color: var(--soluk);
}

.ozellikler {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.kart {
  background: var(--kart);
  border: 1px solid var(--cizgi);
  border-radius: 12px;
  padding: 20px;
}

.kart h2,
.kart h3 {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.4;
}

.kart p {
  margin: 8px 0 0;
  color: var(--soluk);
}

.indir-listesi {
  margin-top: 8px;
}

/* Ekran görüntüleri: telefonda 2, tablette 3, bilgisayarda 6 sütun */

.gorseller {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.gorseller figure {
  margin: 0;
}

.gorseller a {
  display: block;
  border-radius: 12px;
}

.gorseller img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--cizgi);
  border-radius: 12px;
  background: var(--yumusak);
}

.gorseller figcaption {
  margin-top: 6px;
  color: var(--soluk);
  font-size: 0.875rem;
  line-height: 1.4;
}

@media (min-width: 600px) {
  .gorseller {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .gorseller {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* Alt bilgi */

.alt {
  background: var(--kart);
  border-top: 1px solid var(--cizgi);
  padding: 24px 0 32px;
  color: var(--soluk);
  font-size: 0.9375rem;
}

.alt p {
  margin: 0 0 8px;
}

.alt-marka {
  color: var(--yazi);
}

.alt-baglar {
  display: flex;
  flex-wrap: wrap;
  gap: 0 20px;
}

.alt-baglar a {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
}

@media (max-width: 480px) {
  .kap {
    padding: 0 16px;
  }

  .giris {
    padding-top: 32px;
  }

  .giris h1 {
    font-size: 2.25rem;
  }

  .dugmeler .dugme {
    flex: 1 1 100%;
  }

  .logo span {
    font-size: 1.125rem;
  }
}

/* Dar telefonda üst şerit iki satır: üstte logo ve dil, altta İndir ve giriş. */
@media (max-width: 419px) {
  .ust-ic {
    position: relative;
    flex-wrap: wrap;
    row-gap: 4px;
    padding-top: 8px;
    padding-bottom: 10px;
  }

  .ust-sag {
    flex: 1 1 100%;
  }

  .ust-sag .dil {
    position: absolute;
    top: 8px;
    right: 16px;
  }

  .ust-sag .dugme-kucuk {
    flex: 1 1 auto;
  }
}

/* Ekran görüntülerinin tam ekran gösterimi (sayfa.js galeriKur). */
.gorseller a {
  cursor: zoom-in;
}

html.buyuk-acik {
  overflow: hidden;
}

.buyuk {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: #0b100e;
  color: #e6efea;
}

.buyuk[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.buyuk::backdrop {
  background: #0b100e;
}

.buyuk-ust {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 8px 0 20px;
  font-size: 0.9375rem;
  color: #a7b8b0;
}

.buyuk button {
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  color: inherit;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.buyuk button svg {
  display: block;
}

.buyuk-kapat {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: transparent;
}

/* Fareli cihazda üzerine gelince; dokunmatik ekranda basınca takılı kalmasın. */
@media (hover: hover) {
  .buyuk-kapat:hover,
  .buyuk-ok:hover {
    background: rgba(255, 255, 255, 0.18);
  }

  .buyuk-serit button:hover {
    opacity: 1;
  }
}

.buyuk button:focus-visible {
  outline: 3px solid #86d3b8;
  outline-offset: 2px;
}

.buyuk-sahne {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  margin: 0;
  padding: 8px 12px 0;
  min-height: 0;
}

/* Oklar resmin hemen iki yanında durur; resim küçülüp büyüdükçe onunla yer değiştirir. */
.buyuk-cerceve {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 0;
}

.buyuk-resim {
  display: block;
  min-width: 0;
  max-width: calc(100% - 128px);
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-drag: none;
}

.buyuk-yazi {
  padding: 8px 0 4px;
  text-align: center;
  font-size: 1rem;
}

.buyuk-ok {
  position: relative;
  z-index: 1;
  flex: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.buyuk-serit {
  display: flex;
  justify-content: safe center;
  gap: 8px;
  margin: 0;
  padding: 8px 12px 12px;
  list-style: none;
  overflow-x: auto;
}

.buyuk-serit button {
  display: block;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 8px;
  background: none;
  opacity: 0.55;
}

.buyuk-serit button[aria-current="true"] {
  border-color: #86d3b8;
  opacity: 1;
}

.buyuk-serit img {
  display: block;
  width: 54px;
  height: 96px;
  object-fit: cover;
  border-radius: 6px;
}

/* Dar ekranda oklar resmin kenarına biner, resim daralmaz. */
@media (max-width: 480px) {
  .buyuk-sahne {
    padding: 4px 8px 0;
  }

  .buyuk-cerceve {
    gap: 0;
  }

  .buyuk-resim {
    max-width: 100%;
  }

  .buyuk-ok,
  .buyuk-ok:hover {
    background: rgba(0, 0, 0, 0.55);
  }

  .buyuk-onceki {
    margin: 0 -56px 0 8px;
  }

  .buyuk-sonraki {
    margin: 0 8px 0 -56px;
  }

  .buyuk-serit img {
    width: 45px;
    height: 80px;
  }
}