@import url('ozet.css');
@import url('sertifikalar.css');
@import url('calismalar.css');
@import url('akedemik-yayinlar.css');
@import url('basarilar.css');
@import url('etkinlikler.css');
@import url('iletisim.css');
@import url('footer.css');
@import url('aside.css');
@import url('cv.css');

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

/* Body stilleri */
body {
  padding-top: 100px; /* Desktop için header yüksekliği */
  font-family: "Roboto", sans-serif;
  background: #1a1a1a;
  color: #eee;
}

/* HEADER YAPISI */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #2b2b2b;
  color: #eee;
  padding: 1.2rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  border-bottom: 1px solid #444;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
  z-index: 9999;
}

/* Logo ve Açıklama stilleri - Altın tonları */
.logo h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #ffc107;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

.logo p {
  font-size: 1rem;
  color: #bbb;
  margin-top: 5px;
}

/* Menü stilleri */
.main-menu ul {
  list-style: none;
  display: flex;
  gap: 1.8rem;
}

.main-menu a {
  text-decoration: none;
  color: #eee;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color 0.4s ease;
}

/* Menü alt çizgi animasyonu */
.main-menu a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: #ffc107;
  transition: width 0.4s ease;
}

.main-menu a:hover {
  color: #ffc107;
}

.main-menu a:hover::after {
  width: 100%;
}

/* Profil Girişi stilleri */
.profile {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid #ffc107;
  cursor: pointer;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  box-shadow: 0 0 10px rgba(255, 193, 7, 0.5);
}

.profile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile:hover {
  transform: scale(1.1);
  box-shadow: 0 0 15px rgba(255, 193, 7, 0.7);
}

/* Hamburger buton stilleri */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10000;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: #ffc107;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Hamburger aktifken (çarpı yapımı) */
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobil & Tablet Uyum (768px ve altı) */
@media (max-width: 768px) {
  body {
    padding-top: 80px; /* Daha ince header için azaltıldı */
  }

  header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    gap: 0;
    height: 60px; /* Daha ince header */
  }

  .logo {
    display: flex;
    flex-direction: column;
  }

  .logo h1 {
    font-size: 1.2rem;
    line-height: 1.2rem;
  }

  .logo p {
    font-size: 0.7rem;
    line-height: 0.9rem;
  }

  .profile {
    width: 30px;
    height: 30px;
    border-width: 2px;
    margin-left: 10px;
  }

  .hamburger {
    display: flex;
    margin-left: auto;
    margin-right: 10px;
    padding: 5px;
  }

  .main-menu {
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #2b2b2b;
    border-top: 1px solid #444;
    position: absolute;
    top: 60px; /* header’ın hemen altına */
    left: 0;
  }

  .main-menu.open {
    max-height: 400px;
  }

  .main-menu ul {
    flex-direction: column;
    gap: 0.8rem;
    padding: 1rem;
  }

  .main-menu a {
    font-size: 0.95rem;
    padding: 0.3rem 0;
  }
}