/* ─── UZMANLIK ALANLARI (Bento Grid Tasarımı) ────────────────── */
.skills-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.skill-card {
  background: var(--card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 30px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.skill-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: hsla(255, 100%, 60%, 0.3);
  box-shadow: var(--card-shadow);
}

.skill-card-icon {
  font-size: 2rem;
  width: 54px; height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center; justify-content: center;
  margin-bottom: 20px;
  transition: all 0.4s;
}

.skill-card:hover .skill-card-icon {
  transform: rotate(-10deg) scale(1.1);
}

.contact-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 28px; /* Açıklama ile arayı daha fazla açtık */
  text-align: center; 
  color: var(--text);
}

.section-sub.contact-desc {
  max-width: 620px;
  margin: 0 auto 50px;
  text-align: center;
  line-height: 1.7;
  color: var(--muted);
}

.skill-card-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 15px;
  color: var(--text);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 5px;
  justify-content: flex-start;
}

.bento-1 .skill-card-icon { color: hsla(270, 100%, 70%, 1); background: hsla(270, 100%, 65%, 0.1); }
.bento-2 .skill-card-icon { color: var(--cyan); background: hsla(195, 100%, 50%, 0.1); }
.bento-3 .skill-card-icon { color: #3b82f6; background: hsla(220, 100%, 60%, 0.1); }

/* ─── AKADEMİK SERÜVEN (Eğitim Kartı) ────────────────────── */
.edu-card {
  background: var(--card);
  border: 1px solid var(--border2);
  border-radius: 20px;
  padding: 30px;
  display: flex;
  align-items: center;
  gap: 30px;
  max-width: 800px;
  margin: 0;
  transition: all var(--transition);
}

.edu-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: #ff4d4d;
  box-shadow: 0 20px 40px rgba(255, 77, 77, 0.15);
}

.edu-logo-wrapper {
  width: 80px; height: 80px;
  flex-shrink: 0;
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  display: flex;
  align-items: center; justify-content: center;
  border: 1px solid var(--border2);
}

.edu-logo {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 10px;
}

.edu-school {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 5px;
  color: var(--text);
}

.edu-degree {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 15px;
}

.edu-footer {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.9rem;
}

.edu-dates {
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ─── SERTİFİKALAR (Mini-Premium Grid) ────────────────────── */
/* 
   NOT: Sertifikalar kalabalık olduğu için kartları 'compact' (sıkışık olmayan ama yoğun) 
   bir yapıda tutuyoruz.
*/
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.cert-card {
  background: var(--card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  position: relative;
  transition: all var(--transition);
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
}

.cert-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: hsla(255, 100%, 65%, 0.4);
  background: hsla(255, 100%, 100%, 0.95);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.08), 0 0 0 1px hsla(255, 100%, 65%, 0.1);
}
[data-theme="dark"] .cert-card:hover {
  background: hsla(240, 20%, 15%, 0.85);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px hsla(255, 100%, 75%, 0.1);
}

.cert-icon {
  width: 52px; height: 52px;
  flex-shrink: 0;
  display: flex;
  align-items: center; justify-content: center;
  background: hsla(255, 100%, 65%, 0.08); /* Hafif mor saydam zemin */
  color: var(--purple);
  border-radius: 14px;
  font-size: 1.5rem;
  transition: all 0.4s var(--ease);
  border: 1px solid hsla(255, 100%, 65%, 0.1);
}

.cert-card:hover .cert-icon {
  background: var(--purple);
  color: #fff;
  transform: rotate(-10deg) scale(1.1);
  box-shadow: 0 8px 20px hsla(255, 100%, 65%, 0.3);
}



/* ─── PROJELER & RAPORLAR (Cards) ─── */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border);
}

.card-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-name i {
  color: var(--purple);
}

.card-desc {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 25px;
}

.card-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  background: var(--tag-bg);
  transition: all var(--transition);
}

/* NOT: E-posta bağlantıları için hover etkileşimi optimize edildi. */
.card-link:hover {
  background: var(--purple);
  color: #fff;
}

/* ─── İLETİŞİM BÖLÜMÜ (Yeni 2x2 Grid Düzeni) ─── */
/* NOT: Buradaki glassmorphism etkisini artırmak için backdrop-blur değerini 32px yaptım. */
.contact-card {
  background: var(--card);
  backdrop-filter: blur(32px);
  border: 1px solid var(--border);
  border-radius: 36px;
  padding: 50px;
  max-width: 900px;
  margin: 40px auto 0;
  box-shadow: var(--card-shadow);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: hsla(0, 0%, 100%, 0.03);
  border: 1px solid var(--border);
  border-radius: 24px;
  transition: all 0.4s var(--ease);
  color: inherit;
  text-decoration: none;
}

/* Platform Özel İletişim Kartları */
.contact-item[href*="github.com"]:hover {
  border-color: #333;
}
.contact-item[href*="github.com"]:hover .contact-icon {
  background: #333; color: #fff;
}

.contact-item[href*="linkedin.com"]:hover {
  border-color: #0077b5;
}
.contact-item[href*="linkedin.com"]:hover .contact-icon {
  background: #0077b5; color: #fff;
}

.contact-item[href*="instagram.com"]:hover {
  border-color: #dc2743;
}
.contact-item[href*="instagram.com"]:hover .contact-icon {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: #fff;
}

.contact-item.email-link:hover {
  border-color: var(--purple);
}
.contact-item.email-link:hover .contact-icon {
  background: var(--purple); color: #fff;
}

.contact-item:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.contact-icon {
  width: 56px; height: 56px;
  flex-shrink: 0;
  display: flex;
  align-items: center; justify-content: center;
  background: hsla(255, 100%, 65%, 0.1);
  color: var(--purple);
  border-radius: 16px;
  font-size: 1.6rem;
}

.contact-text {
  display: flex;
  flex-direction: column;
}

.contact-text small {
  font-size: 0.75rem;
  color: var(--muted2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.contact-text span {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  word-break: break-all;
}

/* ─── FOOTER (ALT BİLGİ) ─── */
footer {
  background: var(--bg2);
  padding: 100px 0 40px;
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
/* Üst kısımdaki çok hafif parıltı */
footer::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--purple), transparent);
  opacity: 0.3;
}

.footer-grid {
  display: grid;
  grid-template-columns: 3fr 1.5fr 2fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  display: flex;
  gap: 4px;
  margin-bottom: 25px;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text; /* Standart mülkiyet eklendi */
  -webkit-text-fill-color: transparent;
}

.footer-col-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 25px;
  color: var(--text);
  font-family: var(--font-heading);
}

.footer-about {
  color: var(--muted);
  line-height: 1.7;
  max-width: 350px;
  font-size: 0.95rem;
}

.footer-links {
  list-style: none; padding: 0; margin: 0;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.3s;
  font-size: 0.95rem;
}
.footer-links a:hover { color: var(--purple); }

.footer-socials {
  display: flex;
  flex-wrap: wrap; /* Mobilde taşmasın diye */
  gap: 12px;
  margin-bottom: 20px;
}
.footer-socials a {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--muted);
  display: flex;
  align-items: center; justify-content: center;
  font-size: 1.2rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  flex-shrink: 0;
}

/* Platform Özel Hover Renkleri */
.footer-socials a[aria-label="GitHub"]:hover {
  background: #333;
  color: #fff;
  border-color: #333;
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}
.footer-socials a[aria-label="LinkedIn"]:hover {
  background: #0077b5;
  color: #fff;
  border-color: #0077b5;
  box-shadow: 0 10px 20px rgba(0, 119, 181, 0.2);
}
.footer-socials a[aria-label="Instagram"]:hover {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 10px 20px rgba(220, 39, 67, 0.2);
}
.footer-socials a[aria-label="E-posta"]:hover {
  background: var(--purple);
  color: #fff;
  border-color: var(--purple);
  box-shadow: 0 10px 20px hsla(255, 100%, 65%, 0.2);
}
.footer-socials a:hover {
  transform: translateY(-5px) scale(1.1);
}

.footer-contact-info {
  font-size: 0.95rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 15px;
}
.footer-contact-info i { color: var(--purple); }

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted2);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

.back-to-top {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--purple);
  display: flex;
  align-items: center; justify-content: center;
  text-decoration: none;
  transition: all var(--transition);
}
.back-to-top:hover {
  background: var(--purple);
  color: #fff;
  transform: translateY(-5px);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .container { padding: 0 20px; }
  
  .skills-bento { grid-template-columns: 1fr; }
  
  .edu-card { 
    flex-direction: column; 
    text-align: left; 
    padding: 30px 20px; 
    gap: 20px;
    align-items: flex-start;
  }
  
  .card-top { 
    flex-direction: column; 
    align-items: flex-start; 
    gap: 15px; 
  }
  .card-name { font-size: 1.2rem; }
  .card-link { 
    width: 100%; 
    justify-content: center; 
    padding: 12px;
  }

  /* SERTİFİKALAR: Yatay Kaydırma (Horizontal Scroll) */
  .certs-grid {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 16px;
    padding: 10px 4px 25px; /* Alt boşluk gölge için */
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
  }
  .certs-grid::-webkit-scrollbar { display: none; } /* Chrome/Safari */
  
  .cert-card {
    flex: 0 0 290px;
    scroll-snap-align: start;
    height: auto;
  }
  
  .contact-grid { grid-template-columns: 1fr; } 
  .contact-info-hub { flex-direction: column; width: 100%; }
  .contact-item { width: 100%; min-width: 0; padding: 18px; }
  .contact-card { padding: 35px 20px; margin: 30px 0 0; border-radius: 24px; }
  .contact-title { font-size: 2.2rem; text-align: center; } /* Bu kısım mobilde de ortalı kalsın */
  .section-sub.contact-desc { text-align: center; }
  
  /* Bölüm başlıkları mobilde sola yaslı */
  .section-header { text-align: left; }
}