/* Geneli sıfırla */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-image: url('/image/indexicon/bgm.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* Saydam overlay (karartma efekti) */
.overlay-curtain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 0;
}

/* Ana içerik */
main {
  position: relative;
  z-index: 1;
  padding: 40px;
  border-radius: 12px;
}

/* Başlık */
h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* Açıklama */
.lead {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

/* Buton */
.btn {
  background-color: #ff6600;
  color: #fff;
  padding: 12px 24px;
  text-decoration: none;
  border-radius: 8px;
  font-size: 1.2rem;
  transition: background-color 0.3s ease;
  display: inline-block;
  margin-top: 30px;
}

.btn:hover {
  background-color: #e65c00;
}

/* ========================================
   3 ICON — PNG DESTEKLİ
   %33 SİSTEMİ — TAM YAN YANA
======================================== */

.feature-icons {
  margin-top: 40px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: flex-start;
  width: 100%;
  flex-wrap: nowrap !important;
}

/* Her ikon kutusu = tam 1/3 genişlik */
.feature-box {
  width: 33.33%;
  text-align: center;
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #ffffff;
}

/* PNG ikonlar */
.icon-img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  display: block;
  margin-bottom: 10px;
 filter: brightness(0) invert(42%) sepia(94%) saturate(3000%) hue-rotate(-10deg) brightness(1.1);
  opacity: 0.95;
}

/* Yazı */
.feature-box p {
  font-size: 0.95rem;
  line-height: 1.2;
  margin-top: 4px;
  padding: 0 3px;
}

/* ========================================
   MASAÜSTÜ AYARLARI — AYNI GÖRÜNÜMÜ KORU
======================================== */
@media (min-width: 768px) {

  .feature-icons {
    margin-top: 60px;
    gap: 25px;
    flex-wrap: nowrap;
  }

  .icon-img {
    width: 60px;
    height: 60px;
  }

  .feature-box p {
    font-size: 1.1rem;
  }
}