/* === MOBILE HEADER STICKY (CLEAN VERSION) === */
/* Mobilde aşağı kayınca header'ın tamamen kaybolmasını engellemek için fixed + body offset. */
@media (max-width: 991.98px){
  #header.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 12010; /* NavX panel (varsayılan ~12000) üzerinde sade bir katman */
    backdrop-filter: blur(10px) saturate(130%);
    -webkit-backdrop-filter: blur(10px) saturate(130%);
    background: rgba(0,0,0,0.88);
    transition: background-color .35s ease, box-shadow .35s ease;
  }
  body.index-page { padding-top: 82px; } /* header yüksekliği kadar itme */
  body.scrolled #header.header { box-shadow: 0 4px 18px -6px rgba(0,0,0,0.55); }
}

/* Desktop'ta orijinal Bootstrap sticky-top davranışı kalsın; ekstra z-index gerekirse küçük artış */
@media (min-width: 992px){
  #header.header { z-index: 12010; }
}

/* Eski navmenu yapısı artık kullanılmıyor; olası z-index müdahalelerini sıfırla */
.navmenu, .navmenu * { z-index: auto !important; }
.mobile-nav-toggle .hamburger { position:relative; display:inline-block; width: var(--hamburger-size, 30px); height: var(--hamburger-height, 18px); }
.mobile-nav-toggle .hamburger::before,
.mobile-nav-toggle .hamburger::after,
.mobile-nav-toggle .hamburger span { content:""; position:absolute; left:0; width:100%; height: var(--hamburger-bar-height, 3px); background: var(--hamburger-color, #000); border-radius:2px; transition: transform 260ms cubic-bezier(.55,.1,.25,1), opacity 180ms ease, background-color 160ms ease; }
.mobile-nav-toggle .hamburger span { top:50%; transform:translateY(-50%); }
.mobile-nav-toggle .hamburger::before { top:0; }
.mobile-nav-toggle .hamburger::after { bottom:0; }
/* Aktif durumda X */
.mobile-nav-toggle.active .hamburger::before { top:50%; transform:translateY(-50%) rotate(45deg); }
.mobile-nav-toggle.active .hamburger::after { bottom:auto; top:50%; transform:translateY(-50%) rotate(-45deg); }
.mobile-nav-toggle.active .hamburger span { opacity:0; }
/* Hover renk tutarlılığı */
.mobile-nav-toggle:hover .hamburger::before,
.mobile-nav-toggle:hover .hamburger::after,
.mobile-nav-toggle:hover .hamburger span { background: var(--hamburger-color, #000); }
/* Proje kartları için özel düzenleme */
/* =============================
   Modern Design System Layer
   (Renkler, spacing, shadow, radius, durations)
   ============================= */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f9fc;
  --color-surface: #ffffff;
  --color-border: #e3e8ef;
  --color-border-strong: #c2cbd6;
  --color-text: #1f2d3d;
  --color-text-soft: #5b6875;
  --color-primary: #0078ff;
  --color-primary-accent: #00d4ff;
  --color-primary-rgb: 0,120,255;
  --color-accent: #ffb347;
  --color-danger: #e94646;
  --color-success: #16a34a;
  --color-warning: #f59e0b;
  --color-info: #0ea5e9;

  --gradient-primary: linear-gradient(135deg, #0078ff 0%, #00b4ff 50%, #00d4ff 100%);
  --gradient-surface: linear-gradient(145deg, #ffffff 0%, #f0f6fb 100%);
  --gradient-dark-overlay: linear-gradient(180deg, rgba(15,23,42,0) 0%, rgba(15,23,42,0.65) 100%);

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-pill: 999px;

  --shadow-sm: 0 2px 4px rgba(15,23,42,0.08);
  --shadow-md: 0 4px 12px rgba(15,23,42,0.12);
  --shadow-lg: 0 10px 30px rgba(15,23,42,0.15);
  --shadow-focus: 0 0 0 4px rgba(0,120,255,0.15);

  --transition-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 240ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  --blur-backdrop: saturate(180%) blur(14px);
  /* Hamburger renk değişkenleri */
  --hamburger-color: #000000; /* Normal durum (3 çizgi) */
  --hamburger-active-color: #000000; /* X durumunda da aynı siyah */
}

/* Dark Mode (Hazır Altyapı) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f172a;
    --color-bg-alt: #162132;
    --color-surface: #1e293b;
    --color-border: #2a3a4d;
    --color-border-strong: #3c4d61;
    --color-text: #f1f5f9;
    --color-text-soft: #94a3b8;
    --gradient-surface: linear-gradient(145deg, #1d2836 0%, #243447 100%);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.45);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.55);
  }
}

/* Utility Sınıflar */
.u-flex-center { display:flex; align-items:center; justify-content:center; }
.u-flex-between { display:flex; align-items:center; justify-content:space-between; }
.u-text-gradient { background: var(--gradient-primary); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.u-border { border:1px solid var(--color-border); }
.u-surface { background:var(--color-surface); box-shadow:var(--shadow-sm); border:1px solid var(--color-border); border-radius:var(--radius-lg); }
.u-soft { background:var(--color-bg-alt); }
.u-fade-in { animation: uFadeIn 0.6s var(--transition-base); }
@keyframes uFadeIn { from {opacity:0; transform:translateY(8px);} to {opacity:1; transform:translateY(0);} }

/* Focus durumları için erişilebilir iyileştirme */
:is(a, button, [role='button'], input, textarea, select):focus-visible {
  outline: 0;
  box-shadow: var(--shadow-focus);
  border-color: var(--color-primary);
}

/* Scroll behavior */
html { scroll-behavior: smooth; }

/* Modern link hover underline animasyonu */
a.inline-underline { position:relative; text-decoration:none; }
a.inline-underline::after { content:''; position:absolute; left:0; bottom:-2px; height:2px; width:100%; background:var(--gradient-primary); transform:scaleX(0); transform-origin:left; transition:transform var(--transition-base); }
a.inline-underline:hover::after { transform:scaleX(1); }

/* Navbar aktif link */
.navmenu a.active, .navmenu a[aria-current='page'] { color: var(--color-primary) !important; font-weight:600; }

/* === Refactored Nav (Basit & Orijinale Yakın) === */
.navmenu { display:flex; align-items:center; gap:22px; }
.navmenu .mobile-nav-toggle { 
  background: rgba(0,0,0,0.4);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  padding: 0;
  position: relative;
  z-index: 100;
  transition: background-color 0.2s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.navmenu .mobile-nav-toggle { display:none; }
@media (max-width: 991.98px){
  .navmenu .mobile-nav-toggle { display:flex; }
}
.navmenu .mobile-nav-toggle:hover { 
  background: rgba(0,0,0,0.6); 
}

/* Eski .hamburger-bars yapısı kaldırıldı */
/* Yeni pseudo-element temelli hamburger için ekstra gölge opsiyonel: */
.mobile-nav-toggle .hamburger::before,
.mobile-nav-toggle .hamburger::after,
.mobile-nav-toggle .hamburger span { box-shadow: 0 1px 2px rgba(0,0,0,0.25); }

/* Tıklama puls efekti */
.mobile-nav-toggle.pulse::after { content:""; position:absolute; inset:0; border-radius:inherit; background:radial-gradient(circle, rgba(255,255,255,0.55), rgba(255,255,255,0) 70%); animation: btnPulse 520ms ease-out; pointer-events:none; }
@keyframes btnPulse { from { opacity:0.9; transform:scale(.6);} to { opacity:0; transform:scale(1.4);} }

.mobile-nav-toggle:focus-visible { 
  outline: 3px solid rgba(255,255,255,0.8);
  outline-offset: 2px;
}

/* Motion azaltma tercihi */
@media (prefers-reduced-motion: reduce){
  .mobile-nav-toggle .hamburger::before,
  .mobile-nav-toggle .hamburger::after,
  .mobile-nav-toggle .hamburger span { transition:none !important; }
}

/* Çok koyu header üzerinde (ileride) invert gerekirse destek */
@supports (backdrop-filter: blur(4px)) {
  .navmenu .mobile-nav-toggle { 
    backdrop-filter: blur(6px) saturate(160%);
  }
}
/* Eski kuralı kaldırıp breakpoint'i 992px olarak sabitledik */
.navmenu .nav-list { 
  list-style:none !important; 
  margin:0; 
  padding:0; 
  display:flex; 
  align-items:center; 
  gap:8px; 
  background-color: transparent !important; /* Nav listesi arka planını kaldır */
}
.navmenu .nav-item { 
  position:relative; 
  display:inline-block; 
  margin:0; 
  padding:0; 
  background-color: transparent !important; /* Nav öğesi arka planını kaldır */
}
.navmenu .nav-item::before { content:none !important; display:none !important; }
.navmenu .nav-item:last-child .nav-cv { background: rgba(255,255,255,0.25) !important; backdrop-filter: blur(5px); transition: transform var(--transition-fast), background var(--transition-fast); }
.navmenu .nav-item:last-child .nav-cv:hover { background: rgba(255,255,255,0.35) !important; transform: translateY(-2px); }
.navmenu .nav-link { 
  display:inline-flex; 
  align-items:center; 
  padding:10px 14px; 
  font-size:14px; 
  font-weight:500; 
  color:#ffffff; 
  letter-spacing:0.3px; 
  border-radius: var(--radius-pill); 
  transition: color var(--transition-fast), transform var(--transition-fast), text-shadow var(--transition-fast), background var(--transition-fast); 
  background-color: transparent !important; 
  background: transparent !important;
}
/* Hover: metin beyaz + hafif glow */
.navmenu .nav-link:hover { 
  color:#ffffff; 
  background:transparent !important; 
  background-color: transparent !important;
  transform:translateY(-2px); 
  text-shadow: 0 0 15px rgba(255,255,255,0.5); 
}
/* Active: sadece marka rengi (mavi), arka plan yok */
.navmenu .nav-link.active { background:transparent !important; color: var(--color-primary) !important; }
.navmenu .nav-cv { padding:8px 18px; display:inline-flex; align-items:center; gap:4px; font-size:13px; font-weight:600; }

/* Mobil açılır durum */
@media (max-width:1199.98px){
  .navmenu { position:relative; }
  .navmenu .nav-list { position:absolute; top:100%; right:0; flex-direction:column; align-items:stretch; background: var(--color-surface); padding:14px; border:1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); min-width:210px; opacity:0; visibility:hidden; transform: translateY(8px); transition: var(--transition-base); z-index:1000; }
  .navmenu.open .nav-list { opacity:1; visibility:visible; transform: translateY(0); }
  .navmenu .nav-link { width:100%; }
}

/* Karanlık mod uyumu */
@media (prefers-color-scheme: dark){
  .navmenu .nav-list { background: #162132; border-color:#253244; }
  .navmenu .nav-link { color:#b0bac5; }
  .navmenu .nav-link:hover { color:#ffffff; }
  .navmenu .nav-link.active { color: var(--color-primary) !important; }
}

/* Görsel iyileştirme: yumuşak köşeler global */
img { border-radius: var(--radius-sm); }

/* === HARD DESKTOP NAV OVERRIDE (bullet ve dikey list persist sorunu icin) === */
@media (min-width: 1200px) {
  #header .navmenu > ul,
  #header .navmenu .nav-list {
    display: flex !important;
    flex-direction: row !important;
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
    gap: 8px !important;
  }
  #header .navmenu li { list-style:none !important; margin:0 !important; padding:0 !important; }
  #header .navmenu li::marker { content:'' !important; }
  #header .navmenu li::before { content:none !important; }
  #header .navmenu a.nav-link { display:inline-flex !important; align-items:center !important; }
}

/* No-JS fallback (JS calismazsa bile liste yatay kalsin) */
html:not(.js) #header .navmenu > ul { display:flex !important; }

/* Logo başlangıçta beyaz, scroll sonrası siyah isteniyor */
#header .logo h1 { color:#ffffff; transition:color var(--transition-fast); }
body.scrolled #header .logo h1 { color:#000000 !important; }

/* ================= Hero Enhanced ================= */
.enhanced-hero { position:relative; min-height: 90vh; display:flex; align-items:center; justify-content:center; padding-top:40px; padding-bottom:40px; }
.enhanced-hero .hero-media-layer { position:absolute; inset:0; overflow:hidden; border-radius:0; }
.enhanced-hero .hero-bg { width:100%; height:100%; object-fit:cover; filter:brightness(0.55) saturate(1.1); transform:scale(1.05); }
.enhanced-hero .hero-overlay-gradient { position:absolute; inset:0; background:linear-gradient(180deg, rgba(15,23,42,0.4) 0%, rgba(15,23,42,0.85) 90%); }
.enhanced-hero .hero-noise { position:absolute; inset:0; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1600' height='800'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='0.65' seed='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.06'/%3E%3C/svg%3E"); mix-blend-mode:overlay; pointer-events:none; }
.enhanced-hero .hero-inner { max-width:880px; z-index:2; }
.hero-title { font-size:clamp(2.4rem, 5vw, 3.75rem); line-height:1.1; font-weight:700; margin-bottom:1.2rem; }
.hero-title .hero-sub { display:block; font-size:clamp(1rem, 2.4vw, 1.3rem); font-weight:500; color:var(--color-text-soft); margin-top:10px; }
.hero-title .hero-sub .accent { color: var(--color-primary); font-weight:600; }
.hero-pretitle { display:inline-block; margin-bottom:18px; font-size:12.5px; letter-spacing:0.5px; text-transform:uppercase; }
.hero-lead { font-size:clamp(1rem, 1.4vw, 1.125rem); line-height:1.55; color:var(--color-text-soft); max-width:720px; margin-left:auto; margin-right:auto; }
.hero-typed { margin-top:10px; font-weight:500; font-size:0.95rem; letter-spacing:0.5px; text-transform:uppercase; color: var(--color-primary); }
.hero-ctas { margin-top:32px; display:flex; gap:18px; flex-wrap:wrap; justify-content:center; }
.hero-ctas .btn-modern span { position:relative; }
.hero-meta { margin-top:40px; }
.hero-meta .availability { font-size:0.85rem; letter-spacing:0.5px; color:var(--color-text-soft); display:flex; align-items:center; justify-content:center; gap:6px; }
.dot-online { width:10px; height:10px; background:linear-gradient(135deg,#22c55e,#16a34a); display:inline-block; border-radius:50%; box-shadow:0 0 0 4px rgba(34,197,94,0.25); animation: pingDot 2.4s infinite; }
@keyframes pingDot { 0% { box-shadow:0 0 0 0 rgba(34,197,94,0.45); } 70% { box-shadow:0 0 0 12px rgba(34,197,94,0); } 100% { box-shadow:0 0 0 0 rgba(34,197,94,0); } }
.hero-social { margin-top:20px; padding:0; list-style:none; display:flex; gap:22px; justify-content:center; }
.hero-social a { font-size:20px; color:#fff; opacity:0.8; transition: opacity var(--transition-fast), transform var(--transition-fast); }
.hero-social a:hover { opacity:1; transform:translateY(-4px); }
.scroll-indicator { position:absolute; bottom:22px; left:50%; transform:translateX(-50%); width:30px; height:54px; border:2px solid rgba(255,255,255,0.5); border-radius:20px; display:flex; align-items:flex-start; justify-content:center; padding-top:6px; opacity:0.65; }
.scroll-indicator span { width:6px; height:6px; background:#fff; border-radius:50%; animation: scrollWheel 2s infinite; }
@keyframes scrollWheel { 0% { transform:translateY(0); opacity:1; } 60% { transform:translateY(22px); opacity:0; } 100% { transform:translateY(0); opacity:0; } }
@media (prefers-color-scheme: dark) { .hero-title .hero-sub { color:#cbd5e1; } .hero-lead { color:#94a3b8; } }
@media (max-width: 575px) { .hero-ctas { flex-direction:column; } .hero-ctas a { width:100%; justify-content:center; } }

/* Particle canvas overlay basic placeholder */
#hero-particles { position:absolute; inset:0; width:100%; height:100%; pointer-events:none; mix-blend-mode: screen; opacity:0.35; }


/* Header / Navigation Modernization */
#header.header {
  backdrop-filter: var(--blur-backdrop);
  -webkit-backdrop-filter: var(--blur-backdrop);
  background: var(--color-primary); /* Mavi arkaplan - sizin kendi renginizi belirleyebilirsiniz */
  border-bottom:none; /* Alt çizgi kaldırıldı */
  transition: background var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
#header * {
  background-color: transparent !important;
}
/* Eski <i> tabanlı ikon kalırsa görünmez hale getir */
#header .mobile-nav-toggle i { display:none !important; }
@media (prefers-color-scheme: dark) {
  #header.header { background: var(--color-primary); }
}
body.scrolled #header.header { box-shadow: var(--shadow-md); background: var(--color-primary); }
body.scrolled #header.header .logo h1 { font-size: 22px; transition: font-size var(--transition-fast); color: #ffffff; /* Logo scroll durumunda beyaz olsun */ }

.navmenu ul { gap:6px; }
.navmenu a { 
  position:relative; 
  padding:10px 18px; 
  border-radius: var(--radius-pill); 
  font-weight:500; 
  color: #ffffff; 
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast); 
  background-color: transparent !important;
}
.navmenu a:hover { 
  color: #ffffff; 
  transform: translateY(-2px); 
  text-shadow: 0 0 15px rgba(255,255,255,0.5); 
  background-color: transparent !important;
}
.navmenu a.active { 
  background-color: rgba(255,255,255,0.15) !important; 
  color: #ffffff; 
  text-shadow: 0 0 12px rgba(255,255,255,0.6); 
}
.navmenu a.active::after { content:''; position:absolute; left:50%; bottom:4px; width:24px; height:3px; background:#ffffff; border-radius:3px; transform:translateX(-50%); animation: navBar 600ms var(--transition-base); }
@keyframes navBar { from { width:4px; opacity:0; } to { width:24px; opacity:1; } }

/* Mobile toggle enhancement */
.mobile-nav-toggle { 
  transition: transform var(--transition-fast), background var(--transition-fast); 
}
.mobile-nav-toggle.active { 
  background: rgba(0,0,0,0.45); 
}

/* Compact header state when scrolling */
body.scrolled #header.header { backdrop-filter: blur(18px) saturate(180%); }

/* Section başlıkları modernize */
section .section-title h2 { position:relative; font-weight:700; letter-spacing:-0.5px; }
section .section-title h2::after { content:''; position:absolute; left:50%; bottom:-12px; width:70px; height:3px; background:var(--gradient-primary); border-radius:3px; transform:translateX(-50%); }

/* Hero minimal parıltı efekti (hazırlık) */
.hero::before { content:''; position:absolute; inset:0; background:radial-gradient(circle at 30% 40%, rgba(0,120,255,0.18), transparent 60%); pointer-events:none; }

/* Button yeniden kullanılabilir tasarım */
.btn-modern {
  --btn-bg: var(--gradient-primary);
  --btn-color: #fff;
  display:inline-flex; align-items:center; gap:8px;
  background: var(--btn-bg);
  color: var(--btn-color) !important;
  padding: 12px 26px;
  font-weight:600;
  border-radius: var(--radius-pill);
  text-decoration:none !important;
  position:relative;
  overflow:hidden;
  transition: all var(--transition-base);
  box-shadow: 0 6px 18px rgba(var(--color-primary-rgb),0.35);
}
.btn-modern::after { content:''; position:absolute; inset:0; background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.35), transparent 70%); opacity:0; transition:opacity var(--transition-base); }
.btn-modern:hover { transform:translateY(-3px); box-shadow:0 10px 28px rgba(var(--color-primary-rgb),0.45); }
.btn-modern:hover::after { opacity:1; }
.btn-modern:active { transform:translateY(-1px) scale(.97); }
.btn-modern.secondary { --btn-bg: linear-gradient(135deg,#64748b,#334155); }

/* Badge */
.badge-soft { background:rgba(var(--color-primary-rgb),0.08); color:var(--color-primary); padding:4px 12px; font-size:12px; font-weight:600; border-radius:var(--radius-pill); }

/* Glass yüzey opsiyonu */
.glass { background:rgba(255,255,255,0.6); backdrop-filter: var(--blur-backdrop); border:1px solid rgba(255,255,255,0.4); }
@media (prefers-color-scheme: dark) { .glass { background:rgba(30,41,59,0.55); border-color:rgba(255,255,255,0.08);} }

/* Reduce motion desteği */
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; } }

/* ============================= */
.project-card {
  position: relative !important;
  border-radius: 20px;
  overflow: visible !important;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  background: #fff !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  height: auto !important; 
  display: flex !important;
  flex-direction: column !important;
  margin-bottom: 20px;
}

/* Modern grid ayarı */
.projects .isotope-container { --gap: 32px; }
.projects .isotope-container .projects-item { display:flex; }
.projects { padding-top: 80px; }
.projects::before { content:''; position:absolute; left:0; right:0; top:0; height:64px; background:linear-gradient(180deg, rgba(15,23,42,0.08), rgba(15,23,42,0)); pointer-events:none; }
section.projects { position:relative; }
.projects-frame { position:relative; }
.projects .project-card { position:relative; }
.projects .project-card::after { content:''; position:absolute; inset:0; border:1px solid rgba(15,23,42,0.08); border-radius: inherit; mix-blend-mode:normal; pointer-events:none; }
@media (prefers-color-scheme: dark) { .projects .project-card::after { border-color: rgba(255,255,255,0.09); } .projects::before { background:linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0)); } }
.projects .isotope-container { --gap: 40px; }
.projects .project-card { width:100%; border:1px solid rgba(var(--color-primary-rgb),0.10); background: var(--gradient-surface); box-shadow: 0 4px 14px rgba(15,23,42,0.08); border-radius: calc(var(--radius-lg) + 4px); overflow:hidden !important; position:relative; }
.projects .project-card::before { content:''; position:absolute; inset:0; pointer-events:none; background:linear-gradient(145deg, rgba(255,255,255,0.5), rgba(255,255,255,0)); opacity:0.4; }
.projects .project-card:hover { box-shadow: 0 10px 34px -4px rgba(0,120,255,0.25), 0 4px 18px rgba(15,23,42,0.12); }
.projects .project-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px) scale(1.01); }
@media (prefers-reduced-motion: reduce) { .projects .project-card:hover { transform:none; } }

.projects .project-card img { 
  aspect-ratio: 16/10; 
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  width: 100%;
  height: 220px; /* Sabit yükseklik */
  object-fit: cover;
  object-position: center; /* Resmin merkezini gösterme */
  transition: transform 0.4s ease;
}
.projects .project-card .projects-info { 
  padding: 22px !important; 
  position: relative;
  background: #ffffff; 
  z-index: 1;
}

/* Hover overlay açıklama modu */
.projects .project-card .projects-info { 
  transition: background var(--transition-base); 
}
.projects .project-card:hover .projects-info { 
  background: linear-gradient(180deg, rgba(255,255,255,0.98) 0%, #ffffff 100%); 
}

/* Meta rozetleri (isteğe göre) */
.project-card .meta-badges { position:absolute; top:10px; left:10px; display:flex; gap:6px; }
.project-card .meta-badges .badge { background:rgba(var(--color-primary-rgb),0.85); color:#fff; font-size:10px; padding:4px 8px; border-radius: var(--radius-pill); letter-spacing:0.5px; font-weight:600; box-shadow:0 4px 10px rgba(var(--color-primary-rgb),0.3); }

/* Link butonları düzenleme */
.project-links a { position:relative; padding:10px 18px; font-size:13px; border-radius: var(--radius-pill); background: var(--gradient-primary) !important; font-weight:600; letter-spacing:0.4px; }
.project-links a .button-text { margin-left:6px; }
.project-links a::after { content:''; position:absolute; inset:0; background:radial-gradient(circle at 30% 30%, rgba(255,255,255,0.4), transparent 70%); opacity:0; transition: opacity var(--transition-fast); border-radius:inherit; }
.project-links a:hover::after { opacity:1; }

/* Description clamp (opsiyonel) */
.project-description { position:relative; }
.project-description.clamp { display:-webkit-box; -webkit-line-clamp:3; line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }

/* View / Details icon hovers */
.project-links a i { transition: transform var(--transition-fast); }
.project-links a:hover i { transform: scale(1.15); }

/* Filtre container spacing optimize */
.projects-filters.isotope-filters { gap:4px; flex-wrap:wrap; }

/* Proje resimlerinin hover efekti */
.projects .project-card:hover img {
  transform: scale(1.03); /* Sadece biraz büyütme efekti */
}


.project-card img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 10px 10px 0 0;
  transition: transform 0.3s ease;
}

/* Hover durumunda görsel efekti */
.project-card:hover img {
  transform: scale(1.03); /* Sadece biraz büyütme efekti */
}

.projects-info {
  padding: 20px !important;
  display: flex !important;
  flex-direction: column !important;
  background: #fff !important;
  border-radius: 0 0 10px 10px;
  position: relative !important;
  opacity: 1 !important;
  visibility: visible !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  inset: unset !important;
}

.project-description {
  font-size: 14px !important;
  margin-bottom: 10px !important;
  color: #333 !important;
  line-height: 1.5 !important;
  visibility: visible !important;
  opacity: 1 !important;
}

.project-link {
  font-size: 12px !important;
  margin-bottom: 15px !important;
  color: #666 !important;
  visibility: visible !important;
  opacity: 1 !important;
}

.project-links {
  display: flex !important;
  justify-content: center !important;
  gap: 20px;
  margin-top: 10px !important;
  visibility: visible !important;
  opacity: 1 !important;
  align-items: center !important;
}

.project-links a {
  display: flex !important;
  align-items: center;
  justify-content: center;
  background: linear-gradient(45deg, #0078ff, #00d4ff) !important;
  color: white !important;
  border-radius: 30px;
  padding: 8px 15px;
  text-decoration: none !important;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 120, 255, 0.3);
  visibility: visible !important;
  opacity: 1 !important;
}

.project-links a i {
  margin-right: 5px;
  font-size: 16px;
}

.project-links a:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(0, 120, 255, 0.4);
}

/* Proje detay butonlarındaki metin için stil */
.button-text {
  display: inline-block !important;
  margin-left: 5px;
  visibility: visible !important;
  opacity: 1 !important;
}

/* Dinamik Veri Sayacı Stilleri - Diğer sayaçlarla aynı stil */
.dynamic-data-counter {
  font-size: 48px !important;
  display: block !important;
  color: white !important;
  font-weight: 700 !important;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5) !important;
  margin-bottom: 10px !important;
  background: linear-gradient(45deg, #ffffff, #0078ff) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  animation: pulse 2s ease-in-out infinite !important;
}

/* ================= Skills Modern ================= */
.skills-content { position:relative; }
.skills-content h5 { font-weight:600; margin-bottom:18px; letter-spacing:0.5px; }
.skills-content .progress { background: var(--color-bg-alt); border:1px solid var(--color-border); padding:14px 16px 12px; border-radius: var(--radius-lg); margin-bottom:14px; position:relative; overflow:hidden; box-shadow: var(--shadow-sm); }
.skills-content .progress::after { content:''; position:absolute; inset:0; background:linear-gradient(90deg, rgba(var(--color-primary-rgb),0.06), transparent 60%); pointer-events:none; }
.skills-content .progress:hover { box-shadow: var(--shadow-md); }
.skills-content .skill { display:flex; justify-content:space-between; align-items:center; font-size:13px; text-transform:uppercase; font-weight:600; letter-spacing:0.5px; color: var(--color-text-soft); margin-bottom:6px; }
.skills-content .skill i.val { font-style:normal; font-weight:600; color: var(--color-primary); background:rgba(var(--color-primary-rgb),0.08); padding:2px 8px; border-radius: var(--radius-pill); font-size:11px; }
.skills-content .progress-bar-wrap { background:linear-gradient(90deg, #d9e3ee, #cdd8e4); border-radius: 10px; position:relative; height:10px; overflow:hidden; }
.skills-content .progress-bar { position:absolute; left:0; top:0; bottom:0; width:0; background: linear-gradient(90deg,#0078ff,#00b4ff,#00d4ff); border-radius: inherit; transition: width 2.2s cubic-bezier(0.25,0.8,0.25,1); box-shadow: 0 0 0 1px rgba(255,255,255,0.25) inset, 0 2px 8px rgba(var(--color-primary-rgb),0.45); }
.skills-content .progress-bar::after { content:''; position:absolute; inset:0; background:linear-gradient(90deg, rgba(255,255,255,0.15), rgba(255,255,255,0)); mix-blend-mode:overlay; }
@media (prefers-reduced-motion: reduce) { .skills-content .progress-bar { transition:none; } }

/* === Pure CSS fallback (JS çalışmazsa) === */
html:not(.js) .skills-content .progress-bar { animation: none; }
/* data-progress custom property -> width animasyonu */
.skills-content .progress-bar[data-progress] { --target: attr(data-progress percentage); }
@supports (width: clamp(10%, 50%, 90%)) { /* attr() experimental; fallback için JS yine devrede */ }

/* Keyframe fallback: JS ekleyemeyen eski tarayıcılar için basit dolum */
@keyframes barFillFallback { from { width:0; } to { width:var(--fallback-width, 0); } }
html:not(.js) .skills-content .progress-bar[data-fallback-width] { width:0; animation: barFillFallback 3s ease forwards; }

/* Animated numeric reveal */
.skill[data-animate-status="done"] i.val { animation: valPulse 2s ease-in-out 1; }
@keyframes valPulse { 0% { transform:scale(.9); opacity:.5;} 40% { transform:scale(1.08); opacity:1;} 100% { transform:scale(1); } }


/* Pulse animasyonu - diğer sayaçlarla aynı */
@keyframes pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.3); }
}
.filter-PCB .project-card,
.filter-app .project-card,
.filter-EU .project-card,
.filter-books .project-card {
  height: auto !important;
  overflow: visible !important;
}

.filter-PCB .projects-info,
.filter-app .projects-info,
.filter-EU .projects-info,
.filter-books .projects-info {
  background-color: #fff !important;
  opacity: 1 !important;
  position: relative !important;
  padding: 20px !important;
  display: flex !important;
  flex-direction: column !important;
  visibility: visible !important;
  inset: unset !important;
}

/* AB Projeleri için özel düzenlemeler */
.filter-EU .project-card {
  height: auto !important;
  box-shadow: 0 15px 35px rgba(0, 120, 255, 0.15);
}

.filter-EU .project-description,
.filter-app .project-description,
.filter-PCB .project-description,
.filter-books .project-description {
  color: #333 !important;
  font-size: 14px !important;
  margin-bottom: 10px !important;
  max-height: none !important;
  overflow: visible !important;
  visibility: visible !important;
  opacity: 1 !important;
}

.filter-EU .project-link,
.filter-app .project-link,
.filter-PCB .project-link,
.filter-books .project-link {
  color: #666 !important;
  margin-bottom: 15px !important;
  visibility: visible !important;
  opacity: 1 !important;
}

/* Ana CSS dosyasındaki çakışan stilleri geçersiz kıl */
.projects .projects-info {
  position: relative !important;
  inset: unset !important;
  opacity: 1 !important;
  background: #fff !important;
  transition: none !important;
  z-index: 3 !important;
  padding: 20px !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: flex-start !important;
  justify-content: flex-start !important;
  text-align: left !important;
}

.projects .projects-info .project-links {
  justify-content: center !important;
  align-items: center !important;
  text-align: center !important;
}

.projects .projects-item:hover .projects-info {
  opacity: 1 !important;
}

.projects .projects-item .project-description,
.projects .projects-item .project-link,
.projects .projects-item .project-links {
  opacity: 1 !important;
  visibility: visible !important;
}

/* Filtre butonları için tamamen yeni stil sistemi */
.projects-filters.isotope-filters {
  display: flex !important;
  justify-content: center !important;
  margin-bottom: 40px !important;
  padding: 0 !important;
  list-style: none !important;
}

/* Tüm filter butonları için temel stil */
.projects-filters.isotope-filters li,
.projects-filters li,
.isotope-filters li {
  display: inline-block !important;
  margin: 0 10px !important;
  padding: 12px 24px !important;
  border-radius: 25px !important;
  background: #f8f9fa !important;
  border: 2px solid #e3e3e3 !important;
  color: #666 !important;
  cursor: pointer !important;
  transition: all 0.3s ease !important;
  font-weight: 500 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.5px !important;
  position: relative !important;
  z-index: 999 !important;
  text-decoration: none !important;
  text-shadow: none !important;
  -webkit-text-fill-color: #666 !important;
  background-clip: padding-box !important;
  -webkit-background-clip: padding-box !important;
  font-family: var(--nav-font) !important;
  line-height: 1.2 !important;
  min-width: 60px !important;
  text-align: center !important;
  box-sizing: border-box !important;
}

/* Tüm filter butonları içindeki elementler */
.projects-filters.isotope-filters li *,
.projects-filters li *,
.isotope-filters li * {
  color: #666 !important;
  background: transparent !important;
  text-shadow: none !important;
  -webkit-text-fill-color: #666 !important;
  font-family: inherit !important;
  text-decoration: none !important;
}

/* Hover durumu */
.projects-filters.isotope-filters li:hover,
.projects-filters li:hover,
.isotope-filters li:hover {
  background: rgba(0, 120, 255, 0.1) !important;
  border-color: #0078ff !important;
  color: #0078ff !important;
  transform: translateY(-2px) !important;
  -webkit-text-fill-color: #0078ff !important;
  text-shadow: none !important;
}

.projects-filters.isotope-filters li:hover *,
.projects-filters li:hover *,
.isotope-filters li:hover * {
  color: #0078ff !important;
  -webkit-text-fill-color: #0078ff !important;
  text-shadow: none !important;
}

/* Active durum için tamamen yeni stil */
.projects-filters.isotope-filters li.filter-active,
.projects-filters li.filter-active,
.isotope-filters li.filter-active,
.projects-filters.isotope-filters li[data-filter]:active,
.projects-filters li[data-filter]:active,
.isotope-filters li[data-filter]:active {
  background: #0078ff !important;
  border-color: #0078ff !important;
  color: #ffffff !important;
  box-shadow: 0 4px 15px rgba(0, 120, 255, 0.3) !important;
  font-weight: 600 !important;
  z-index: 1000 !important;
  text-shadow: none !important;
  -webkit-text-fill-color: #ffffff !important;
  background-clip: padding-box !important;
  -webkit-background-clip: padding-box !important;
  font-family: var(--nav-font) !important;
  line-height: 1.2 !important;
  text-align: center !important;
  transform: translateY(-1px) !important;
}

/* Active durum içindeki elementler */
.projects-filters.isotope-filters li.filter-active *,
.projects-filters li.filter-active *,
.isotope-filters li.filter-active *,
.projects-filters.isotope-filters li[data-filter]:active *,
.projects-filters li[data-filter]:active *,
.isotope-filters li[data-filter]:active * {
  color: #ffffff !important;
  background: transparent !important;
  text-shadow: none !important;
  -webkit-text-fill-color: #ffffff !important;
  font-family: inherit !important;
  text-decoration: none !important;
}

/* Active hover durumu */
.projects-filters.isotope-filters li.filter-active:hover,
.projects-filters li.filter-active:hover,
.isotope-filters li.filter-active:hover {
  background: #0078ff !important;
  color: #ffffff !important;
  transform: translateY(-3px) !important;
  box-shadow: 0 6px 20px rgba(0, 120, 255, 0.4) !important;
  text-shadow: none !important;
  -webkit-text-fill-color: #ffffff !important;
}

.projects-filters.isotope-filters li.filter-active:hover *,
.projects-filters li.filter-active:hover *,
.isotope-filters li.filter-active:hover * {
  color: #ffffff !important;
  text-shadow: none !important;
  -webkit-text-fill-color: #ffffff !important;
}

/* Skills bölümü yazılarını sağa çekme */
.about .skills-content .progress .skill {
  padding-left: 20px !important;
  margin-left: 15px !important;
}

.about .skills-content .progress .skill span:first-child {
  margin-left: 10px !important;
}

.about .skills-content .progress-bar-wrap {
  margin-left: 35px !important;
  width: calc(100% - 35px) !important;
}

.filter-EU .project-links,
.filter-app .project-links,
.filter-PCB .project-links,
.filter-books .project-links {
  position: relative !important;
  z-index: 10 !important;
  margin-top: 5px !important;
  padding-bottom: 10px !important;
  display: flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  justify-content: center !important;
  align-items: center !important;
}

/* ================= Timeline (Resume) ================= */
.timeline { position:relative; margin:40px auto 10px; padding-left:12px; max-width:860px; }
.timeline::before { content:''; position:absolute; left:26px; top:0; bottom:0; width:3px; background:linear-gradient(180deg, var(--color-border) 0%, rgba(var(--color-primary-rgb),0.5) 60%, var(--color-primary) 100%); border-radius:3px; opacity:0.65; }
@media (prefers-color-scheme: dark) { .timeline::before { background:linear-gradient(180deg,#2e3d50,#365d82); opacity:0.9; } }

.timeline-item { position:relative; padding:0 0 38px 72px; opacity:0; transform:translateY(16px); animation: timelineFade var(--transition-slow) forwards; }
.timeline-item:nth-child(1) { animation-delay: .05s; }
.timeline-item:nth-child(2) { animation-delay: .12s; }
.timeline-item:nth-child(3) { animation-delay: .18s; }
.timeline-item:nth-child(4) { animation-delay: .24s; }
.timeline-item:nth-child(5) { animation-delay: .30s; }
.timeline-item:nth-child(6) { animation-delay: .36s; }
.timeline-item:last-child { padding-bottom:0; }

@keyframes timelineFade { to { opacity:1; transform:translateY(0); } }

.timeline-marker { position:absolute; left:12px; top:4px; width:30px; height:30px; border-radius:50%; background:var(--gradient-primary); box-shadow:0 4px 12px rgba(var(--color-primary-rgb),0.5), 0 0 0 4px rgba(var(--color-primary-rgb),0.25); display:flex; align-items:center; justify-content:center; }
.timeline-marker::after { content:''; width:10px; height:10px; background:#fff; border-radius:50%; box-shadow:0 0 0 3px rgba(255,255,255,0.35); }

.timeline-item[data-type='education'] .timeline-marker { background:linear-gradient(135deg,#6366f1,#3b82f6); box-shadow:0 4px 12px rgba(59,130,246,0.4), 0 0 0 4px rgba(59,130,246,0.25); }
.timeline-item[data-type='summary'] .timeline-marker { background:linear-gradient(135deg,#0ea5e9,#06b6d4); box-shadow:0 4px 12px rgba(14,165,233,0.45),0 0 0 4px rgba(6,182,212,0.3); }
.timeline-item[data-type='experience'] .timeline-marker { background:var(--gradient-primary); }

.timeline-content { background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-lg); padding:26px 28px 22px; box-shadow: var(--shadow-sm); position:relative; transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base); }
.timeline-content:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.timeline-content::before { content:''; position:absolute; left:-14px; top:24px; width:14px; height:14px; background:inherit; border-left:1px solid var(--color-border); border-top:1px solid var(--color-border); transform: rotate(-45deg); border-radius:2px 0 0 0; }
@media (prefers-color-scheme: dark) { .timeline-content { box-shadow: 0 6px 14px rgba(0,0,0,0.55); } }

.timeline-title { font-size:1.05rem; font-weight:600; letter-spacing:.3px; margin-bottom:8px; }
.timeline-meta { display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin-bottom:10px; font-size:.75rem; text-transform:uppercase; letter-spacing:.8px; font-weight:600; color: var(--color-text-soft); }
.timeline-period { background:rgba(var(--color-primary-rgb),0.07); padding:4px 10px; border-radius: var(--radius-pill); color: var(--color-primary); font-size:.7rem; letter-spacing:.5px; font-weight:600; }
.timeline-badge { background:#1e293b; color:#fff; padding:4px 10px; border-radius: var(--radius-pill); font-size:.65rem; letter-spacing:.5px; font-weight:600; box-shadow:0 2px 4px rgba(0,0,0,0.2); }
.timeline-badge.primary { background: var(--color-primary); }
.timeline-badge.alt { background:#6366f1; }
@media (prefers-color-scheme: dark) { .timeline-badge { background:#334155; } }

.timeline-entity { margin-bottom:10px; font-size:.85rem; color: var(--color-text-soft); }
.timeline-intro { font-size:.9rem; line-height:1.5; color: var(--color-text-soft); }
.timeline-list { margin:0; padding-left:18px; font-size:.82rem; line-height:1.45; }
.timeline-list.small { font-size:.78rem; }
.timeline-list li { margin-bottom:6px; position:relative; }
.timeline-list li:last-child { margin-bottom:0; }

.timeline-item:focus-within .timeline-content, .timeline-item:hover .timeline-content { border-color: var(--color-primary); }

/* Reduced motion: remove translate & glow */
@media (prefers-reduced-motion: reduce) { .timeline-item { animation:none; opacity:1; transform:none; } .timeline-content:hover { transform:none; } }

/* Timeline text contrast fix */
.timeline-content, .timeline-content p, .timeline-content li, .timeline-title { color: var(--color-text); }
.timeline-content p, .timeline-content li { color: var(--color-text-soft); }
@media (prefers-color-scheme: dark) { .timeline-content p, .timeline-content li { color: #cbd5e1; } }

/* Skills bar visibility fix (ensure text & bar visible overriding template) */
.skills-content .progress-bar-wrap { background:linear-gradient(90deg,#d9e3ee,#cdd8e4) !important; }
.skills-content .progress-bar { background: linear-gradient(90deg,#0078ff,#00b4ff,#00d4ff) !important; opacity:1 !important; }
.skills-content .skill span, .skills-content .skill i.val { color: var(--color-text) !important; -webkit-text-fill-color: var(--color-text) !important; }
@media (prefers-color-scheme: dark) { .skills-content .skill span, .skills-content .skill i.val { color:#f1f5f9 !important; -webkit-text-fill-color:#f1f5f9 !important; } }

/* Responsive */
@media (max-width: 680px) {
  .timeline { padding-left:4px; }
  .timeline::before { left:20px; }
  .timeline-item { padding:0 0 34px 62px; }
  .timeline-marker { left:5px; width:26px; height:26px; }
  .timeline-content { padding:20px 20px 18px; }
  .timeline-title { font-size:1rem; }
  .timeline-meta { font-size:.65rem; }
  .timeline-period { padding:3px 8px; }
}

/* Print mode: flatten visuals */
@media print {
  .timeline::before { background:#444; }
  .timeline-content { box-shadow:none; }
  .timeline-marker { box-shadow:none; }
}

/* === Footer: Designed by link siyah === */
.credits a[href*="alitumkaya"],
footer .credits a[href*="alitumkaya"],
.footer .credits a[href*="alitumkaya"] {
  color:#000 !important;
  font-weight:600;
}
@media (hover:hover){
  .credits a[href*="alitumkaya"]:hover { text-decoration:underline; }
}