.ust-baslik {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px; /* logolar ve metin arası boşluk */
  padding: 15px 20px;
  background: white;
  border-bottom: 1px solid #e5e7eb;
}

.ust-baslik .logo-ust {
  height: 50px; /* logo boyutu */
  width: auto;
}
.anasayfa-baslik {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px; /* logolar ile metin arası boşluk */
  margin-bottom: 30px;
  flex-wrap: wrap; /* ekran küçükse alt alta geçsin */
}

.logo-orta {
  height: 100px;
  width: auto;
}

.baslik-metni {
  text-align: center;
  line-height: 1.2;
  font-weight: 600;
  font-size: 18px;
  color: #1f2937;
}

.baslik-metni div:first-child {
  font-size: 18px;
  font-weight: 700;
}

.baslik-metni div:last-child {
  font-size: 16px;
  font-weight: 500;
  color: #374151;
}


.baslik-metni {
  text-align: center;
  line-height: 1.2;
  font-weight: 600;
  font-size: 16px;
  color: #1f2937;
}

.baslik-metni div:first-child {
  font-size: 18px;
  font-weight: 700;
}

.baslik-metni div:last-child {
  font-size: 14px;
  font-weight: 500;
  color: #374151;
}

/* GENEL */
body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: #f5f6f7;
  color: #111;
}

/* ÜST MENÜ */
.menu {
  background: white;
  border-bottom: 1px solid #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: space-between; /* 🔴 ÖNEMLİ */
  padding: 0 30px;
}

/* LOGO + YAZI */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: #1f2937;
  cursor: pointer;
  margin-right: 40px;
}

.logo img {
  height: 36px;
  width: auto;
}

.logo span {
  white-space: nowrap;
}

.logo:hover span {
  color: #1d4ed8;
}

/* MENÜ LİSTESİ */

.menu ul {
  list-style: none;
  display: flex;
  gap: 30px;
  margin: 0;
  padding: 0;
}

.menu li {
  cursor: pointer;
  padding: 18px 0;
  font-size: 15px;
  color: #374151;
  position: relative;
}

.menu li:hover {
  color: #1d4ed8;
}

/* AKTİF MENÜ ALT ÇİZGİ */
.menu li.aktif::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: #1d4ed8;
}

/* SAYFA İÇERİĞİ */
.icerik {
  max-width: 900px;
  margin: 40px auto;
  background: white;
  padding: 30px;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

/* SAYFA GEÇİŞ */
.sayfa {
  display: none;
}

.sayfa.aktif {
  display: block;
}

/* FORM ELEMANLARI */
input, select {
  width: 100%;
  max-width: 350px;
  padding: 10px;
  margin-bottom: 15px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  font-size: 14px;
}

button {
  padding: 10px 20px;
  background: #1d4ed8;
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
}

button:hover {
  background: #1e40af;
}

.duyuru-bolumu {
  background: rgba(255, 255, 255, 0.8); /* 🔹 şeffaf beyaz */
  border-left: 4px solid #4f46e5;
  padding: 18px;
  margin: 25px 0;
  font-size: 15px;
  color: #1f2937;
  border-radius: 6px;
}

.duyuru-bolumu h3 {
  margin-top: 0;
  color: #1d4ed8;
  font-size: 18px;
  margin-bottom: 10px;
}

.duyuru-bolumu ol {
  padding-left: 20px;
  list-style-type: decimal; /* 🔹 1 2 3 şeklinde */
}

.duyuru-bolumu li {
  margin-bottom: 10px;
  line-height: 1.6;
}

.kirmizi {
  color: #dc2626; /* kırmızı ton */
  font-weight: 600; /* isteğe bağlı biraz belirgin */
}

.link {
  color: #1d4ed8;      /* mavi renk */
  text-decoration: underline; /* alt çizgi */
  font-weight: 500;
}

.link:hover {
  color: #2563eb;      /* hover rengi daha koyu mavi */
}
.alt-link {
  text-align: center;   /* sayfa ortasında */
  margin: 30px 0;
}

.alt-link a {
  font-size: 16px;
  color: #1d4ed8;
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
}

.alt-link a:hover {
  color: #2563eb;  /* hover rengi koyu mavi */
}
.sayfa {
  display: none;
}

.sayfa.aktif {
  display: block;
}
.kayit-form {
  max-width: 450px;
  margin: 30px auto;
  display: flex;
  flex-direction: column;   /* 🔴 EN ÖNEMLİ SATIR */
  gap: 8px;
}

.kayit-form label {
  margin-top: 12px;
  font-weight: bold;
}

.kayit-form input,
.kayit-form select {
  width: 100%;
  padding: 10px;
  font-size: 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
  box-sizing: border-box; /* taşmayı engeller */
}

.kayit-form button {
  margin-top: 20px;
  padding: 12px;
  font-size: 16px;
  background: #004aad;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.kayit-form button:hover {
  background: #003080;
  text-transform: uppercase;

}

.admin-table th:last-child,
.admin-table td:last-child {
  width: 130px;
  text-align: center;
  white-space: nowrap;
}

.admin-table .islem-btn {
  display: flex;
  justify-content: center;
  gap: 6px;
}


/* GERİSAYIM BAŞLANGIÇ */
    /* Overlay ve flu arka plan */
    #geriSayimOverlay {
      position: fixed;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(10,25,60,0.7);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 9999;
      font-family: 'Courier New', Courier, monospace;
    }

    #geriSayimContainer {
      text-align: center;
      max-width: 95%;
      padding: 20px;
    }

    #kayitTarihleri {
      font-size: 16px;
      margin-bottom: 15px;
      color: #80ffe0;
      text-shadow: 0 0 6px #00ffd6;
    }

    #geriSayim {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }

    .sayi-kutu {
      background: rgba(0,0,0,0.25);
      backdrop-filter: blur(5px);
      -webkit-backdrop-filter: blur(5px);
      padding: 20px 25px;
      border-radius: 12px;
      min-width: 70px;
      box-shadow: 0 4px 15px rgba(0,255,214,0.5);
      text-align: center;
      border: 1px solid rgba(0,255,214,0.4);
    }

    .sayi-kutu span {
      display: block;
      font-size: 32px;
      font-weight: bold;
      color: #00ffd6;
      text-shadow: 0 0 8px #00ffd6, 0 0 16px #00ffd6;
    }

    .sayi-kutu small {
      display: block;
      font-size: 12px;
      margin-top: 4px;
      color: #80ffe0;
      text-shadow: 0 0 4px #00ffd6;
    }

    @media (max-width: 480px) {
      .sayi-kutu {
        min-width: 60px;
        padding: 15px 18px;
      }
      .sayi-kutu span {
        font-size: 24px;
      }
      #kayitTarihleri {
        font-size: 14px;
      }
}

#kayitBittiMesaji {
  background: #ffffff;          /* Beyaz kutu */
  padding: 18px 22px;
  border-radius: 10px;
  color: #dc2626;               /* Net kırmızı */
  font-size: 18px;
  font-weight: 600;
  text-align: center;
  margin-top: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15); /* Hafif gölge */
  border: 1px solid #f3f4f6;    /* Çok hafif kenar çizgi */
}

/* GERİSAYIM BİTİŞ */

.kart-stil {
  background: #f0f2f5; /* Açık gri/mavi ton */
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  margin: 20px auto;
  max-width: 900px;
}

.whatsapp-btn {
  padding:12px 20px;
  border:none;
  border-radius:8px;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color:white;
  font-weight:bold;
  cursor:pointer;
  box-shadow: 0 0 10px rgba(37,211,102,0.6);
  transition:0.3s;
  animation: pulse 1.2s infinite;
}

/* yanıp sönme efekti */
@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 0 5px rgba(37,211,102,0.5); }
  50% { transform: scale(1.08); box-shadow: 0 0 20px rgba(37,211,102,1); }
  100% { transform: scale(1); box-shadow: 0 0 5px rgba(37,211,102,0.5); }
}

/* hover efekti */
.whatsapp-btn:hover {
  animation: none;
  transform: scale(1.1);
}