/* varsayılan (light) */
:root {
  --c-hero-bg: var(--c-gray);
  --c-hero-tx: var(--c-navy);
  --c-band-bg: var(--c-navy);
  --c-band-tx: var(--c-gray);
  --c-band-ln: var(--c-orange);
  --c-card-bg: var(--c-gray);
  --c-card-cr: var(--c-navy);
  --c-card-tx: var(--c-gray);
  --c-card-ic: var(--c-orange);
}

/* dark mode */
body.dark {
  --c-hero-bg: var(--c-navy);
  --c-hero-tx: var(--c-gray);
  --c-band-bg: var(--c-navy);
  --c-band-tx: var(--c-gray);
  --c-band-ln: var(--c-orange);
  --c-card-bg: var(--c-navy);
  --c-card-cr: var(--c-navy);
  --c-card-tx: var(--c-gray);
  --c-card-ic: var(--c-orange);
}

/* Dark mode'da corp-band üst/alt çizgi */
body.dark .corp-band{
  position: relative; /* pseudo-elementler için */
}

body.dark .corp-band::before,
body.dark .corp-band::after{
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 3px;
  background: rgba(255,255,255,0.3); /* çizgi rengi */
}

body.dark .corp-band::before{ top: 0; }
body.dark .corp-band::after{ bottom: 0; }

html, body { height: 100%; }

body{
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main{ flex: 1; }

/* Kurumsal Sayfa */
.corp{
  background: var(--c-hero-bg);
}

/* ÜST: Hikayemiz */
.corp-hero{
  background: var(--c-hero-bg);
  padding: 48px 0 38px;
}

.corp-hero-inner{
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;

  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: center;
}

.corp-title{
  margin: 0 0 14px;
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 800;
  color: var(--c-hero-tx);
  letter-spacing: -0.02em;
}

.corp-desc{
  margin: 0;
  max-width: 700px;
  font-size: clamp(14px, 1vw, 54px);
  line-height: 1.7;
  color: var(--c-hero-tx);
}

.corp-hero-right{
  display: flex;
  justify-content: flex-end;
}

.corp-hero-right img{
  width: min(540px, 100%);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 16px;

  /* ekrandaki yumuşak kart hissi */
  box-shadow: 0 18px 30px rgba(7, 1, 34, 0.18);
  border: 1px solid rgba(7, 1, 34, 0.08);
}

/* ORTA: koyu şerit */
.corp-band{
  background: var(--c-band-bg);
  padding: 36px 0 34px;
}

.corp-band-inner{
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;

  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
}

.corp-band-item{
  color: var(--c-band-tx);
}

.corp-band-mark{
  width: 34px;
  height: 3px;
  background: var(--c-band-ln);
  border-radius: 999px;
  margin-bottom: 10px;
}

.corp-band-title{
  margin: 0 0 10px;
  font-size: clamp(26px, 2.4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.corp-band-text{
  margin: 0;
  max-width: 64ch;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--c-band-tx);
}

/* ALT: 3 kart */
.corp-values{
  background: var(--c-card-bg);
  padding: 44px 0 64px;
}

.corp-values-inner{
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;

  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 34px;
}

.corp-card{
  background: var(--c-card-cr);
  border-radius: 14px;
  padding: 22px 22px 20px;

  box-shadow: 0 18px 26px rgba(7, 1, 34, 0.14);
}

.corp-card-icon{
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255,255,255,0.08);

  display: grid;
  place-items: center;
  margin-bottom: 14px;

  color: var(--c-card-ic);
}

.corp-card-icon svg{
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.corp-card-title{
  margin: 0 0 10px;
  color: var(--c-card-tx);
  font-weight: 800;
  font-size: 16px;
}

.corp-card-text{
  margin: 0;
  color: var(--c-card-tx);
  font-size: 12.5px;
  line-height: 1.65;
  max-width: 50ch;
}

/* Responsive */
/* 1200px ve altı: boşlukları sıkılaştır */
@media (max-width: 1200px){
  .corp-hero{ padding: 40px 0 32px; }
  .corp-hero-inner{ gap: 28px; }
  .corp-band-inner{ gap: 28px; }
  .corp-values{ padding: 40px 0 56px; }
  .corp-values-inner{ gap: 22px; }
}

/* 980px ve altı: hero ve band tek kolon (sende vardı, aynen kalabilir) */
@media (max-width: 980px){
  .corp-hero-inner{ grid-template-columns: 1fr; }
  .corp-hero-right{ justify-content: flex-start; }
  .corp-band-inner{ grid-template-columns: 1fr; }

  .corp-hero-right{ order: -1; }
  .corp-hero-left{ order: 1; }
}

/* 768px ve altı: değerler kartlarını 2 kolon yap (tablet için çok daha iyi) */
@media (max-width: 768px){
  .corp-values-inner{
    grid-template-columns: repeat(2, 1fr);
  }

  .corp-desc{
    font-size: clamp(14px, 1.6vw, 16px);
  }

  .corp-hero-right img{
    aspect-ratio: 4 / 3; /* telefonda 16/9 bazen çok basık kalıyor */
  }
}

/* 520px ve altı: her şey tek kolon */
@media (max-width: 520px){
  .corp-hero-inner,
  .corp-band-inner,
  .corp-values-inner{
    grid-template-columns: 1fr;
  }

  .corp-hero-inner,
  .corp-band-inner,
  .corp-values-inner{
    padding: 0 16px; /* 24px yerine daha dar */
  }

  .corp-title{
    font-size: clamp(28px, 7vw, 40px);
  }

  .corp-card{
    padding: 18px;
  }
}