:root {
  --zemin: #F6F8F7; --kart: #FFFFFF; --murekkep: #0B0F19; --soluk: #5B6B66; --cizgi: #DCE6E2;
  --ana: #0F6E56; --koyu: #085041; --en-koyu: #04342C; --acik: #E1F5EE; --nane: #9FE1CB;
  --kehribar: #FAC775; --kehribar-koyu: #BA7517;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --zemin: #0B1412; --kart: #13201D; --murekkep: #EEF4F2; --soluk: #9DB1AB; --cizgi: #24352F;
    --ana: #9FE1CB; --acik: #16302A; --kehribar-koyu: #FAC775;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--zemin); color: var(--murekkep);
  font: 17px/1.65 "Lato", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--ana); }
img { max-width: 100%; }
.kap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.dar { max-width: 760px; }

.ust { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--zemin) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--cizgi); }
.ust .kap { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ust img { height: 32px; display: block; }
.ust nav a { color: var(--soluk); text-decoration: none; font-size: 15px; margin-left: 16px; }
.ust nav a:hover { color: var(--murekkep); }
.logo-koyu { display: none !important; }
@media (prefers-color-scheme: dark) { .logo-acik { display: none !important; } .logo-koyu { display: block !important; } }

h1, h2, h3, .rakam { font-family: "Poppins", system-ui, sans-serif; }
h1 { font-size: clamp(38px, 7vw, 64px); line-height: 1.05; margin: 0 0 12px; font-weight: 800; letter-spacing: -0.02em; }
h1 em { font-style: normal; color: var(--kehribar-koyu); }
h2 { font-size: clamp(26px, 4vw, 34px); line-height: 1.2; margin: 0 0 10px; font-weight: 800; letter-spacing: -0.01em; }
h3 { font-size: 18px; margin: 0 0 4px; font-weight: 700; }
p { margin: 0 0 12px; }

.kahraman { padding-top: 56px; padding-bottom: 40px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.alt-slogan { font-size: 22px; color: var(--soluk); margin-bottom: 18px; }
.giris { font-size: 18px; max-width: 34em; }
.dugmeler { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.magaza { display: inline-flex; flex-direction: column; justify-content: center; min-width: 168px; padding: 10px 18px;
  border-radius: 14px; background: var(--murekkep); color: var(--zemin); text-decoration: none; line-height: 1.25; }
.magaza small { font-size: 12px; opacity: 0.75; }
.magaza b { font-size: 17px; }
.magaza[aria-disabled="true"] { cursor: default; }

.veri-karti { background: var(--koyu); color: #fff; border-radius: 26px; padding: 26px 26px 22px; box-shadow: 0 20px 50px -24px rgba(4, 52, 44, 0.55); }
.veri-karti .baslik { color: var(--nane); font-size: 15px; display: flex; justify-content: space-between; gap: 8px; }
.veri-karti .etiket { background: var(--ana); color: var(--acik); border-radius: 99px; padding: 1px 10px; font-size: 13px; white-space: nowrap; }
.veri-karti .buyuk { font-family: "Poppins", sans-serif; font-weight: 800; font-size: clamp(48px, 9vw, 68px); line-height: 1.05; margin: 6px 0 2px; font-variant-numeric: tabular-nums; }
.veri-karti .alt { color: var(--acik); margin: 0 0 14px; }
.veri-karti svg { display: block; width: 100%; height: 56px; }
.veri-karti .satirlar { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
.veri-karti .satirlar div { background: rgba(255, 255, 255, 0.07); border-radius: 14px; padding: 10px 12px; }
.veri-karti .satirlar span { display: block; color: var(--nane); font-size: 13px; line-height: 1.3; }
.veri-karti .satirlar b { font-family: "Poppins", sans-serif; font-size: 20px; font-variant-numeric: tabular-nums; }
.veri-karti .kaynak { color: var(--nane); font-size: 12px; margin: 14px 0 0; opacity: 0.85; }

.bolum { padding-top: 48px; padding-bottom: 48px; }
.bolum .ust-yazi { color: var(--soluk); max-width: 40em; margin-bottom: 24px; }
.izgara { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.kutu { background: var(--kart); border: 1px solid var(--cizgi); border-radius: 20px; padding: 20px; }
.kutu .simge { width: 40px; height: 40px; border-radius: 12px; background: var(--acik); color: var(--ana);
  display: grid; place-items: center; font-size: 20px; margin-bottom: 12px; }
.kutu p { color: var(--soluk); font-size: 15.5px; margin: 0; }
.ilkeler { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }

details { background: var(--kart); border: 1px solid var(--cizgi); border-radius: 16px; padding: 14px 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 700; }
details p { margin: 10px 0 0; color: var(--soluk); }

.icerik { padding-top: 36px; padding-bottom: 64px; }
.icerik h1 { font-size: clamp(32px, 5vw, 44px); }
.icerik h2 { font-size: 23px; margin: 32px 0 8px; }
.icerik ul { padding-left: 22px; }
.soluk { color: var(--soluk); }
.iletisim { background: var(--kart); border: 1px solid var(--cizgi); border-radius: 18px; padding: 20px; margin: 22px 0; }
.iletisim .eposta { font-size: 20px; font-weight: 700; word-break: break-all; }
.dugme { display: inline-block; background: var(--ana); color: var(--zemin); text-decoration: none; font-weight: 700; padding: 10px 18px; border-radius: 12px; }

.alt-bilgi { border-top: 1px solid var(--cizgi); padding: 24px 0 40px; color: var(--soluk); font-size: 14px; }
.alt-bilgi a { color: var(--soluk); margin-right: 16px; }
.alt-bilgi p { margin: 8px 0 0; }

@media (max-width: 820px) {
  .kahraman { grid-template-columns: 1fr; padding-top: 32px; gap: 28px; }
  .izgara, .ilkeler { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
  .veri-karti { padding: 20px 18px; }
  .veri-karti .satirlar { grid-template-columns: 1fr; }
  .ust nav a { margin-left: 12px; }
}

/* ---- hesaplayıcılar ---- */
.yol { font-size: 14px; color: var(--soluk); margin-bottom: 6px; }
.yol a { color: var(--soluk); }
.hesap-kutu { margin: 22px 0 8px; }
.form { display: grid; gap: 12px; margin-bottom: 12px; }
.form.iki { grid-template-columns: 1fr 1fr; }
.form[hidden] { display: none; }
.alan label { display: block; font-size: 14px; color: var(--soluk); margin: 0 0 4px 4px; }
.alan select, .tutar { width: 100%; background: var(--kart); border: 1px solid var(--cizgi); border-radius: 14px; color: var(--murekkep); }
.alan select { font: inherit; padding: 12px 14px; appearance: auto; }
.tutar { display: flex; align-items: center; padding: 0 16px; }
.tutar:focus-within, .alan select:focus { outline: 2px solid var(--ana); outline-offset: -1px; }
.tutar input { flex: 1; min-width: 0; border: 0; background: none; outline: none; color: inherit;
  font: 800 24px/1 "Poppins", sans-serif; padding: 14px 0; font-variant-numeric: tabular-nums; }
.tutar span { color: var(--soluk); }
.ipucu { color: var(--soluk); font-size: 14px; margin: -4px 4px 12px; }
.cipler { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.cip { font: inherit; font-size: 15px; padding: 8px 16px; border-radius: 99px; border: 1px solid var(--cizgi); background: var(--kart); color: var(--murekkep); cursor: pointer; }
.cip.secili { background: var(--koyu); border-color: var(--koyu); color: #fff; font-weight: 700; }
.turler { display: grid; gap: 6px; margin-bottom: 12px; }
.tur { font: inherit; text-align: left; padding: 10px 14px; border-radius: 14px; border: 1px solid var(--cizgi); background: var(--kart); color: var(--murekkep); cursor: pointer; }
.tur b { display: block; }
.tur span { font-size: 13px; color: var(--soluk); }
.tur.secili { background: var(--koyu); border-color: var(--koyu); color: #E1F5EE; }
.tur.secili span { color: #9FE1CB; }
.sonuc-alani { display: grid; gap: 10px; }
.sonuc { background: #085041; color: #fff; border-radius: 22px; padding: 20px 20px 18px; }
.sonuc .baslik { display: flex; justify-content: space-between; gap: 8px; color: #9FE1CB; font-size: 15px; }
.sonuc .etiket { background: #0F6E56; color: #E1F5EE; border-radius: 99px; padding: 1px 10px; font-size: 13px; white-space: nowrap; align-self: flex-start; }
.sonuc .buyuk { font: 800 clamp(36px, 8vw, 46px)/1.1 "Poppins", sans-serif; margin: 4px 0 4px; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.sonuc .alt { color: #E1F5EE; margin: 0; }
.cubuklar { margin-top: 16px; display: grid; gap: 12px; }
.cubuk-ust { display: flex; justify-content: space-between; gap: 8px; font-size: 14px; color: #9FE1CB; }
.cubuk-ust b { color: #fff; font-variant-numeric: tabular-nums; white-space: nowrap; }
.cubuk .iz { position: relative; height: 10px; border-radius: 6px; background: #0F6E56; margin-top: 6px; }
.cubuk .dolu { height: 100%; border-radius: 6px; }
.cubuk .esik { position: absolute; top: -4px; bottom: -4px; width: 3px; border-radius: 2px; background: #FAC775; }
.esik-aciklama { margin: 2px 0 0; font-size: 13px; color: #9FE1CB; border-left: 3px solid #FAC775; padding-left: 8px; }
.satirlar-karti { background: var(--kart); border: 1px solid var(--cizgi); border-radius: 18px; padding: 4px 16px; }
.satir { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--cizgi); }
.satir:last-child { border-bottom: 0; }
.satir b { font-variant-numeric: tabular-nums; white-space: nowrap; }
.satir b.olumlu { color: #15803D; }
.satir b.olumsuz { color: #B91C1C; }
@media (prefers-color-scheme: dark) { .satir b.olumlu { color: #9FE1CB; } .satir b.olumsuz { color: #FAC775; } }
.ornek-karti { background: var(--acik); border: 1px solid color-mix(in srgb, #9FE1CB 60%, transparent); border-radius: 18px; padding: 14px 16px 8px; }
.ornek-baslik { font-weight: 700; color: var(--ana); margin-bottom: 4px; }
.ornek-karti p { margin: 0 0 4px; }
.metin-dugme { display: block; margin-left: auto; font: inherit; font-weight: 700; color: var(--ana); background: none; border: 0; padding: 8px 4px; cursor: pointer; }
.cerceve-dugme { font: inherit; font-weight: 700; color: var(--ana); background: none; border: 1px solid var(--cizgi); border-radius: 14px; padding: 12px; cursor: pointer; width: 100%; }
.not { font-style: italic; color: var(--soluk); margin: 0; }
.uygulama-kutu { display: flex; gap: 16px; align-items: center; background: var(--kart); border: 1px solid var(--cizgi); border-radius: 20px; padding: 18px; margin: 28px 0; }
.uygulama-kutu img { width: 56px; height: 56px; border-radius: 14px; flex: none; }
.uygulama-kutu p { margin: 0; color: var(--soluk); font-size: 15px; }
.uygulama-kutu b { color: var(--murekkep); }
.nasil { margin-top: 18px; }
.nasil ul { margin: 10px 0 0; padding-left: 20px; color: var(--soluk); }
.nasil li { margin-bottom: 6px; }
.hesap-baglantilari { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; margin-top: 12px; }
.hesap-baglantilari a { display: block; background: var(--kart); border: 1px solid var(--cizgi); border-radius: 14px; padding: 12px 14px; text-decoration: none; color: var(--murekkep); font-weight: 700; }
.hesap-baglantilari a span { display: block; font-weight: 400; font-size: 14px; color: var(--soluk); }
a.kutu { text-decoration: none; color: inherit; display: block; transition: border-color .15s, transform .15s; }
a.kutu:hover { border-color: var(--ana); transform: translateY(-2px); }
a.kutu .git { color: var(--ana); font-weight: 700; font-size: 15px; margin-top: 10px; display: block; }
@media (max-width: 520px) { .form.iki { grid-template-columns: 1fr; } }
.form > *, .alan { min-width: 0; }
.tutar input { width: 100%; }