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

body {
  font-family: "Raleway", sans-serif;
  color: #e5e5f0;
  background: linear-gradient(135deg, #090a14 0%, #0c0d1b 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* NAVBAR */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 80px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin: 0 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  width: 28px;
  height: 28px;
}

.logo span {
  font-size: 14px;
  color: #e2e2e8;
  font-weight: 400;
}

nav {
  display: flex;
  gap: 25px;
}

nav a {
  text-decoration: none;
  color: #d1d1e0;
  font-size: 14px;
  transition: color 0.3s ease;
  font-weight: 400;
}

nav a:hover {
  color: #6a67ff;
}

/* Contact butonu */
.contact-btn {
  background: linear-gradient(135deg, #4c56ff, #6c63ff);
  color: white;
  border: none;
  padding: 6px 18px;
  border-radius: 25px;
  cursor: pointer;
  font-size: 14px;
  transition: 0.3s ease;
}

.contact-btn:hover {
  transform: scale(1.05);
  background: linear-gradient(135deg, #6c63ff, #4c56ff);
}

/* ORTA KISIM */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero h1 {
  font-size: 80px;              /* daha büyük */
  font-weight: 300;             /* daha ince font */
  line-height: 1.1;
  color: #dedeea;
  letter-spacing: 1px;
}

.hero h1 span {
  display: block;
  color: #d1d1e0;
}


.subtitle {
  margin-top: 18px;
  font-size: 16px;
  font-weight: 300;
  color: #a7a7bb;
}

.about-btn {
  margin-top: 30px;
  background: linear-gradient(135deg, #4c56ff, #6c63ff);
  border: none;
  color: white;
  font-size: 15px;
  padding: 10px 26px;
  border-radius: 25px;
  cursor: pointer;
  transition: 0.3s ease;
}

.about-btn:hover {
  transform: scale(1.05);
  background: linear-gradient(135deg, #6c63ff, #4c56ff);
}

.hero {
  text-align: center;
  margin-top: 220px; /* yazıyı navbar’dan daha da aşağı indir */
}

/* logo kısmı */
.hero-logo {
  margin-top: 140px; /* yazıyla logo arasında daha fazla boşluk */
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo img {
  width: 900px;         /* LOGO ÇOK BÜYÜK */
  max-width: 90vw;      /* ekrana göre otomatik ölçeklenir */
  height: auto;
  opacity: 0.9;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.hero-logo img:hover {
  transform: scale(1.05);
  opacity: 1;
}

.hero p {
  margin-top: 45px; /* yazıyı biraz aşağıya alır */
  font-size: 20px;
  font-weight: 300;
  color: #a7a7bb;
}

.about-btn {
  display: inline-block;
  margin-top: 40px;
  text-decoration: none; /* alt çizgiyi kaldırır */
  border: none;
  outline: none;
  background: linear-gradient(135deg, #4c56ff, #6c63ff);
  color: white;
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 500;
  font-size: 16px;
  transition: all 0.3s ease;
}

.about-btn:hover {
  opacity: 0.9;
  transform: scale(1.05);
  text-decoration: none; /* hover'da da çizgi çıkmasın */
}

/* SKILLS SECTION */
/* SKILLS SECTION */
.skills-section {
  text-align: center;
  margin-top: 160px; /* logodan sonra biraz daha fazla boşluk */
  padding: 0 20px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.skills-section h2 {
  font-size: 34px; /* daha büyük başlık */
  font-weight: 400; /* hafif kalın */
  color: #e3e3f3;
  margin-bottom: 35px; /* başlık ile açıklama arası boşluk */
  letter-spacing: 0.5px;
}

.skills-section p {
  font-size: 17px; /* daha zarif yazı boyutu */
  font-weight: 300;
  color: #b2b2c6;
  line-height: 1.9; /* satır arası boşluk */
  max-width: 850px;
  margin: 0 auto;
}

/* MODERN CERTIFICATE SECTION */
.certificates-modern {
  text-align: center;
  padding: 100px 60px;
}

.certificates-modern h2 {
  color: #e5e4fa;
  font-size: 34px;
  font-weight: 400;
  margin-bottom: 60px;
  letter-spacing: 0.5px;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 60px;
  justify-items: center;
}

.cert-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  overflow: hidden;
  max-width: 550px;
  width: 100%;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
  transition: all 0.3s ease;
}

.cert-item:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 12px 50px rgba(0, 0, 0, 0.45);
}

.cert-item img {
  width: 100%;
  height: auto;
  display: block;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cert-info {
  padding: 20px 25px 30px;
  text-align: center;
}

.cert-info h3 {
  color: #f0efff;
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 8px;
}

.cert-info p {
  color: #9c9ab6;
  font-size: 14px;
  font-weight: 300;
}

/* Responsive */
@media (max-width: 900px) {
  .cert-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* HERO (üstte bozulduysa garanti için) */
.hero {
  text-align: center;
  margin-top: 220px;
}
.hero h1 {
  font-size: 64px;
  font-weight: 300;
  color: #ffffff;
  line-height: 1.2;
}
.hero h1 span { font-weight: 700; }
.hero p {
  font-size: 20px;
  font-weight: 300;
  color: #cccccc;
  margin-top: 45px;
}

/* FEATURES - sade, çevresiz kartlar (görsellerin etrafında ekstra kaplama yok) */
.features-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 1200px;
  margin: 100px auto;
  padding: 0 40px;
}

/* Kart container artık transparan, kaplama yok */
.feature-card {
  background: transparent; /* çevre arka plan kaldırıldı */
  border: none;            /* çevre border kaldırıldı */
  padding: 0;              /* iç boşluk kaldırıldı */
  text-align: center;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

/* Görsel kendisi kart gibi davranır: köşe, gölge hover */
.feature-card img {
  width: 100%;
  height: 220px;           /* istersen yüksekliği ayarla */
  object-fit: cover;
  display: block;
  border-radius: 14px;     /* görselin kendisi yuvarlak kenarlı */
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  box-shadow: none;        /* normalde gölge yok */
}

/* Hover: hafif yükselme + morumsu glow */
.feature-card:hover img {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 18px 40px rgba(108, 99, 255, 0.18);
}

/* Başlık & açıklama (içerik varsa) */
.feature-card h3 {
  margin-top: 18px;
  color: #ffffff;
  font-size: 18px;
  font-weight: 500;
}
.feature-card p {
  color: #b8b8cc;
  font-size: 14px;
  margin-top: 6px;
  font-weight: 300;
}

/* Responsive: 3 kolondan 1 kolona düşsün */
@media (max-width: 1000px) {
  .features-section {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .feature-card img { height: auto; max-height: 420px; }
}

.future-text {
  text-align: center;
  margin-top: 100px;
  margin-bottom: 40px;
}

.future-text h2 {
  font-size: 64px;
  font-weight: 300;
  line-height: 1.1;
  color: #ffffff;
}

.future-text h2 span {
  display: block;
  font-weight: 700;
  color: #6c63ff; /* istersen burayı da beyaz yapabiliriz */
}

/* --- çizgi kısmı --- */
.divider {
  width: 30%;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.2); /* navbar çizgisi gibi soft beyaz */
  margin: 30px auto 0 auto;
  border-radius: 1px;
}

.footer {
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  margin-top: 20px;
  margin-bottom: 40px;
  font-weight: 300;
}

.footer span {
  color: #6c63ff; /* mor tonlu vurgu */
  font-weight: 500;
  transition: color 0.3s ease;
}

.footer span:hover {
  color: #ffffff; /* hover'da beyaz olur */
}

/* ABOUT SAYFASI BAŞLIK KISMI */
.about-hero {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 70vh;
  flex-direction: column;
}

.about-hero h1 {
  text-align: center;
  font-size: 72px;
  font-weight: 300;
  color: #e5e5f0;
  margin-top: 180px; /* yazıyı navbar'dan aşağı indirir */
  letter-spacing: 1px;
}


/* ABOUT FOTOĞRAF KISMI */
.about-photo {
  margin-top: 100px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-photo img {
  width: 800px;         /* büyük boy */
  max-width: 85vw;      /* ekran boyutuna göre küçülür */
  border-radius: 20px;  /* yumuşak kenarlar */
  opacity: 0.95;
  transition: transform 0.4s ease, opacity 0.4s ease;
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.05);
}

.about-photo img:hover {
  transform: scale(1.03);
  opacity: 1;
}

.about-story {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 100px;
  margin: 160px 100px;
}

.story-left h2 {
  font-size: 48px;
  font-weight: 300;
  color: #e5e5f0;
  line-height: 1.2;
  text-align: left;
}

.story-right {
  max-width: 600px;
}

.story-right p {
  font-size: 17px;
  font-weight: 300;
  color: #bfbfd4;
  line-height: 1.8;
  text-align: justify;
}

/* CONTACT SECTION */
.contact-section {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 5vh 12vw; /* daha az boşluk */
  color: white;
  gap: 80px; /* sol ve sağ arası mesafe */
}

.contact-left h1 {
  font-size: 6rem;
  font-weight: 300;
  color: #dedeea;
  margin-top: 40px; /* 40’tan 10’a düşürüldü */
  letter-spacing: 1px;
  line-height: 1.1;
}

.contact-left {
  flex: 1;
  padding-left: 120px; /* yazıyı biraz sağa alır */
}



.contact-right {
  width: 45%;
  background: rgba(255, 255, 255, 0.03);
  padding: 2rem 3rem;
  border-radius: 1.2rem;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 15px rgba(140, 82, 255, 0.15);
}

.contact-right h2 {
  font-weight: 500;
  margin-bottom: 2rem;
  font-size: 1.4rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.3rem;
}

.form-group label {
  font-size: 0.85rem;
  color: #cfcfcf;
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: white;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  outline: none;
  font-size: 0.95rem;
  transition: 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #a370ff;
  background: rgba(255, 255, 255, 0.1);
}

.send-btn {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  border: none;
  color: white;
  padding: 0.9rem 2rem;
  border-radius: 50px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.send-btn:hover {
  box-shadow: 0 0 15px rgba(140, 82, 255, 0.4);
  transform: translateY(-2px);
}

/* Footer */
footer {
  text-align: center;
  color: #aaa;
  font-size: 0.9rem;
  padding: 2rem 0;
}


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

main {
  flex: 1;
}

footer {
  text-align: center;
  padding: 50px 0 40px 0; /* üst ve alt boşluk biraz daha dengeli */
  margin-top: 60px;       /* sayfanın ana içeriğiyle arasına boşluk */
}

footer .divider {
  width: 30%;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.2);
  margin: 0 auto 70px auto; /* çizgiyle yazı arasına 20px boşluk eklendi */
}

footer p {
  color: #ccc;
  font-size: 14px;
  letter-spacing: 0.5px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none; /* alt çizgiyi kaldırır */
  color: inherit; /* rengin değişmesini önler */
}

.logo-link img {
  width: 28px;
  height: 28px;
}

.logo-link span {
  font-size: 14px;
  color: #e2e2e8;
  font-weight: 400;
  position: relative;
  top: 1px; /* yazıyı çok hafif yukarı alır, hizalamayı düzeltir */
}

.social-icons {
  margin-top: 15px;
  display: flex;
  justify-content: center;
  gap: 25px;
}

.social-icons a {
  color: #d1d1e0;
  font-size: 22px;
  transition: color 0.3s ease, transform 0.3s ease;
}

.social-icons a:hover {
  color: #6a67ff;
  transform: scale(1.2);
}


/* TAM EKRAN LOADER */
.loader {
  position: fixed;
  inset: 0;
  background-color: #090a14;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 1s ease-out;
}

/* LOGO */
.loader img {
  width: 700px;
  height: auto;
  opacity: 0;
  animation: fadeIn 1.5s ease-out forwards;
  animation-delay: 0.3s;
}

/* LOGO GİRİŞ ANİMASYONU */
@keyframes fadeIn {
  0% {
    opacity: 0;
    transform: scale(0.85);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* LOADER KAYBOLMA ANİMASYONU */
@keyframes fadeOut {
  0% {
    opacity: 1;
    visibility: visible;
  }
  100% {
    opacity: 0;
    visibility: hidden;
  }
}


/* ================================ */
/* MOBILE RESPONSIVENESS & TEXT FIXES */
/* ================================ */

/* Fix navbar toggler button color */
.navbar-toggler {
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Fix About Me nav link visibility */
.nav-link {
  color: #d1d1e0 !important;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: #6a67ff !important;
}

/* Fix form input text visibility */
.form-group input,
.form-group textarea {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff !important; /* Force white text */
  padding: 0.8rem 1rem;
  border-radius: 8px;
  outline: none;
  font-size: 0.95rem;
  transition: 0.3s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #aaaaaa !important; /* Light gray placeholder */
  opacity: 0.8;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #a370ff;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff !important;
}

/* MOBILE MEDIA QUERIES */

/* Large tablets and small desktops */
@media (max-width: 1200px) {
  .navbar {
    padding: 14px 40px;
    margin: 0 40px;
  }
  
  .hero h1 {
    font-size: 60px;
  }
  
  .certificates-modern {
    padding: 80px 40px;
  }
  
  .about-story {
    margin: 120px 60px;
    gap: 60px;
  }
  
  .contact-section {
    padding: 4vh 8vw;
    gap: 60px;
  }
}

/* Tablets */
@media (max-width: 992px) {
  .navbar {
    padding: 12px 20px;
    margin: 0 20px;
  }
  
  .hero {
    margin-top: 150px;
  }
  
  .hero h1 {
    font-size: 48px;
  }
  
  .hero-logo img {
    width: 600px;
  }
  
  .skills-section {
    margin-top: 120px;
    padding: 0 15px;
  }
  
  .skills-section h2 {
    font-size: 28px;
  }
  
  .about-story {
    flex-direction: column;
    margin: 100px 40px;
    gap: 40px;
    text-align: center;
  }
  
  .story-left h2 {
    font-size: 36px;
  }
  
  .contact-section {
    flex-direction: column;
    padding: 3vh 6vw;
    gap: 40px;
  }
  
  .contact-left {
    padding-left: 0;
    text-align: center;
  }
  
  .contact-left h1 {
    font-size: 4rem;
    margin-top: 20px;
  }
  
  .contact-right {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
  }
}

/* Mobile phones */
@media (max-width: 768px) {
  .navbar {
    padding: 10px 15px;
    margin: 0 15px;
  }
  
  .hero {
    margin-top: 100px;
  }
  
  .hero h1 {
    font-size: 36px;
    line-height: 1.2;
  }
  
  .hero p {
    font-size: 16px;
    margin-top: 30px;
    padding: 0 20px;
  }
  
  .hero-logo {
    margin-top: 80px;
  }
  
  .hero-logo img {
    width: 400px;
  }
  
  .skills-section {
    margin-top: 80px;
    padding: 0 20px;
  }
  
  .skills-section h2 {
    font-size: 24px;
    margin-bottom: 25px;
  }
  
  .skills-section p {
    font-size: 15px;
    line-height: 1.7;
  }
  
  .certificates-modern {
    padding: 60px 20px;
  }
  
  .certificates-modern h2 {
    font-size: 28px;
    margin-bottom: 40px;
  }
  
  .cert-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .future-text {
    margin-top: 60px;
    padding: 0 20px;
  }
  
  .future-text h2 {
    font-size: 36px;
  }
  
  .features-section {
    grid-template-columns: 1fr;
    gap: 25px;
    margin: 60px auto;
    padding: 0 20px;
  }
  
  .about-hero h1 {
    font-size: 42px;
    margin-top: 120px;
    padding: 0 20px;
  }
  
  .about-photo {
    margin-top: 60px;
    padding: 0 20px;
  }
  
  .about-photo img {
    width: 100%;
    max-width: 400px;
  }
  
  .about-story {
    margin: 80px 20px;
    gap: 30px;
  }
  
  .story-left h2 {
    font-size: 28px;
    margin-bottom: 20px;
  }
  
  .story-right p {
    font-size: 15px;
    line-height: 1.7;
    text-align: left;
  }
  
  .contact-left h1 {
    font-size: 3rem;
    margin-top: 10px;
  }
  
  .contact-section {
    padding: 2vh 4vw;
  }
  
  .contact-right {
    padding: 1.5rem 2rem;
  }
  
  .contact-right h2 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
  }
  
  .footer {
    margin-top: 40px;
    padding: 40px 20px 30px 20px;
  }
}

/* Very small mobile phones */
@media (max-width: 480px) {
  .hero h1 {
    font-size: 28px;
  }
  
  .hero-logo img {
    width: 300px;
  }
  
  .skills-section h2 {
    font-size: 20px;
  }
  
  .skills-section p {
    font-size: 14px;
  }
  
  .certificates-modern h2 {
    font-size: 24px;
  }
  
  .future-text h2 {
    font-size: 28px;
  }
  
  .about-hero h1 {
    font-size: 32px;
    margin-top: 100px;
  }
  
  .story-left h2 {
    font-size: 24px;
  }
  
  .contact-left h1 {
    font-size: 2.5rem;
  }
  
  .contact-right {
    padding: 1rem 1.5rem;
  }
  
  .loader img {
    width: 400px;
  }
}

/* Landscape mobile orientation fixes */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    margin-top: 60px;
  }
  
  .hero-logo {
    margin-top: 40px;
  }
  
  .hero-logo img {
    width: 250px;
  }
  
  .about-hero h1 {
    margin-top: 60px;
  }
  
  .about-photo {
    margin-top: 40px;
  }
}