:root {
  --bg-color: #EAEAEA; 
  --surface-color: rgba(255, 255, 255, 0.9);
  --bg-dark: #1A1A1D; /* Siyah bölümler için */
  --text-main: #18181B;
  --text-muted: #4B5563;
  --text-light: #F3F4F6;
  --primary: #18181B;
  --radius-lg: 24px;
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.08);
  --border: 1px solid rgba(0, 0, 0, 0.1);
}

body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  background-color: #ededf0 !important; /* Çok hafif, kirli beyaz/gri arası bir ton */
  color: #18181b;
  line-height: 1.6;
}

/* Siyah bölümlerin (Projeler, Contact) rengini de biraz yumuşatalım */
.projects-full-dark, .contact-full-dark {
  background-color: #121214 !important; /* Tam siyah değil, çok koyu füme */
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* NAVBAR */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(15, 15, 18, 0.9);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; padding: 14px 24px; }
.logo-link {
  font-size: 2.8rem !important; font-weight: 900 !important; color: white !important; 
  text-decoration: none; letter-spacing: -2px;
}
.navbar nav a { color: #9CA3AF; text-decoration: none; font-weight: 600; margin-left: 20px; transition: 0.3s; }
.navbar nav a:hover { color: white; }
.btn-lang { background: rgba(255,255,255,0.1); color: white; border: none; padding: 6px 14px; border-radius: 8px; cursor: pointer; font-weight: 700; margin-left: 20px; }

/* HERO */
.hero { display: flex; align-items: center; justify-content: space-between; padding: 100px 0; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.hero-badge { 
  background: white; padding: 6px 16px; border-radius: 99px; font-weight: 600; 
  border: var(--border); font-size: 0.85rem;
}

.hero h1 { font-size: 4rem; font-weight: 900; margin: 0; letter-spacing: -1.5px; }
.profile-photo { width: 340px; border-radius: 32px; box-shadow: var(--shadow-md); border: 4px solid white; }

/* ABOUT - TEMİZ GÖRÜNÜM */
.about-section { padding: 80px 0; }
.about-clean-content p { font-size: 1.25rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 24px; max-width: 900px; }

/* SKILLS - BÜYÜTÜLMÜŞ */
.skills-grid-large { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); 
  gap: 32px; 
  margin-top: 40px; 
}
.skill-card-big {
  background: white;
  padding: 48px;
  border-radius: var(--radius-lg);
  border: var(--border);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s;
}
.skill-card-big:hover { transform: translateY(-10px); }
.skill-card-big h3 { font-size: 1.8rem; margin: 0 0 16px 0; color: var(--primary); }
.skill-card-big p { font-size: 1.15rem; color: var(--text-muted); }

.projects-full-dark {
  background: var(--bg-dark);
  color: white;
  padding: 100px 0;
}
.projects-full-dark h2 { color: white; margin-bottom: 40px; }

.projects { 
  display: grid;
   grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
   }
.project-card { 
  background: white; 
  padding: 40px;
  border-radius: var(--radius-lg); 
  
  display: flex;
  flex-direction: column; 
  
  justify-content: space-between; 

  min-height: 400px; 
  border: var(--border); 
  transition: 0.4s; 
  color: var(--text-main);
  text-decoration: none; 
  overflow: hidden; 
}


.project-card img {
  width: 100%;       /* Kartın genişliği kadar ol */
  height: 250px;     /* Sabit bir yükseklik ver (opsiyonel) */
  object-fit: cover; /* Resmi yamultmadan kutuya sığdır (Altın kural!) */
  border-radius: var(--radius-md); /* Resmin köşelerini de yumuşatalım */
  margin-bottom: 10px; /* Yazıyla arasına mesafe koy */
}
.project-card:hover { transform: translateY(-12px); box-shadow: 0 25px 50px rgba(0,0,0,0.3); }

.contact-full-dark {
  background: var(--bg-dark);
  color: white;
  padding: 120px 0;
  text-align: left;
}
.contact-merged-content h2 { font-size: 3.5rem; margin: 0 0 20px 0; font-weight: 900; }
.contact-merged-content p { font-size: 1.5rem; color: #9CA3AF; margin-bottom: 40px; }


.btn { padding: 16px 32px; border-radius: 12px; font-weight: 800; text-decoration: none; transition: 0.3s; display: inline-block; font-size: 1.1rem; }
.btn-primary { background: #18181B; color: white; }
.btn-primary-white { background: white; color: #18181B; }
.btn-primary-white:hover { background: #E5E7EB; transform: scale(1.05); }
.btn-outline { border: var(--border); color: #18181B; }

.btn:hover {
    /* Yatay, Dikey, Yayılma, Boyut, Renk (Siyah %15 opaklık) */
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15); 
    transform: translateY(-2px); /* Çok hafif yukarı kalkma efekti (isteğe bağlı) */
}

.detail-page { padding: 60px 0; }
.detail-image { 
  max-width: 700px; width: 100%; height: auto; border-radius: 24px; display: block; 
  margin: 0 auto 40px; box-shadow: var(--shadow-md); border: var(--border); 
}
.detail-card-merged { background: white; padding: 50px; border-radius: 30px; border-left: 12px solid #18181B; }

/* TEKNOLOJİ TAGLERİ - AYRILDI */
.tags-fixed { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.tag-fixed { 
  background: #18181B; color: white; padding: 10px 20px; 
  border-radius: 99px; font-size: 0.95rem; font-weight: 600; display: inline-block; 
}

footer { text-align: center; padding: 60px 0; background: var(--bg-color); color: var(--text-muted); border-top: var(--border); }

@media (max-width: 900px) {
  .hero { flex-direction: column-reverse; text-align: center; gap: 40px; }
  .profile-photo { width: 280px; }
  .skills-grid-large { grid-template-columns: 1fr; }
  .contact-merged-content h2 { font-size: 2.5rem; }
}

.card-thumb {
  width: 100%;
  height: 140px; 
  object-fit: cover; 
  border-radius: 12px; 
  margin-bottom: 12px; 
  border: 1px solid rgba(0,0,0,0.05); 
}

.project-card {
  align-items: flex-start !important;
  padding: 20px !important;
}
.marquee {
  width: 100%;
  overflow: hidden;
  padding: 50px 0;
  background: transparent;
  border-top: 1px solid rgba(0,0,0,0.05);
  border-bottom: 1px solid rgba(0,0,0,0.05); 
}

.marquee-content {
  display: flex;
  animation: scroll 35s linear infinite; 
}

.logo-item {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-right: 80px; 
  color: var(--text-main);
  opacity: 0.3; 
  transition: 0.3s;
  filter: grayscale(100%); 
}

.logo-item:hover {
  opacity: 1;
  filter: grayscale(0%);
  transform: scale(1.1);
}

.logo-item i {
  font-size: 2.5rem; 
}

.logo-item span {
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.about-section {
  padding: 100px 0;
}

.about-card {
  background: white;
  padding: 60px 50px 50px 60px; 
  border-radius: var(--radius-lg);
  border: var(--border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.04);
  max-width: 900px;
  margin: 40px auto 0; 
  position: relative;
}

.about-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 10px;
  background: var(--primary); 
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}


.about-title {
  position: absolute;
  top: -50px; 
  left: 0;    
  margin: 0;
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -1px;
  color: var(--text-main);
}


.about-clean-content p {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 25px;
}

.about-clean-content p:last-child {
  margin-bottom: 0;
}