/* Yeles Yazilim - Header CSS */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-h);transition:all var(--t-base)}
.site-header::before{content:'';position:absolute;inset:0;background:rgba(11,18,32,0);backdrop-filter:blur(0px);transition:all var(--t-base);border-bottom:1px solid transparent}
.site-header.scrolled::before{background:rgba(11,18,32,.95);backdrop-filter:blur(20px);border-bottom-color:var(--border-light)}
.header-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;height:var(--header-h);max-width:var(--max-w);margin:0 auto;padding:0 var(--pad)}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.site-header .logo-img{height:78px;width:auto;max-width:min(440px,72vw);object-fit:contain;object-position:left center;display:block}
.footer-brand .logo-img{height:48px;max-width:280px}

/* ===== CSS TEXT LOGO ===== */
.logo-text {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
  user-select: none;
  gap: 3px;
  background: none !important;
  -webkit-text-fill-color: unset !important;
}

/* Y + ELES aynı satırda */
.logo-wordmark {
  display: block;
  white-space: nowrap;
  font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  background: linear-gradient(90deg, #fff 20%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Y harfi — cyan neon */
.logo-y {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--blue-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 7px rgba(96,165,250,0.6));
}

/* Alt yazı — Yazılım */
.logo-tag {
  display: block;
  align-self: flex-end;
  font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  font-size: clamp(10px, 1vw, 14px);
  font-weight: 500;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gray-400);
  -webkit-text-fill-color: var(--gray-400);
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}

.logo-icon{width:38px;height:38px;background:linear-gradient(135deg,var(--blue-mid),var(--blue));border:1px solid rgba(59,130,246,.25);border-radius:10px;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:13px;font-weight:700;color:#fff;letter-spacing:-.05em;position:relative;overflow:hidden;flex-shrink:0}
.logo-icon::after{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent 30%,rgba(255,255,255,.12) 50%,transparent 70%);animation:logoShine 3s infinite}
@keyframes logoShine{0%{transform:translateX(-100%) rotate(45deg)}100%{transform:translateX(100%) rotate(45deg)}}
.logo-name{font-size:20px;font-weight:700;letter-spacing:-.03em;color:#fff}
.logo-name span{color:var(--cyan)}
.logo-tagline{font-family:var(--font-mono);font-size:9px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--gray-500);margin-top:2px;display:block}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:8px 14px;font-size:14px;font-weight:500;color:var(--gray-300);border-radius:var(--r-sm);transition:all var(--t-fast);white-space:nowrap}
.nav-link::after{content:'';position:absolute;bottom:4px;left:50%;transform:translateX(-50%);width:0;height:2px;background:linear-gradient(90deg,var(--blue-mid),var(--blue-light));border-radius:1px;transition:width var(--t-base)}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link:hover::after,.nav-link.active::after{width:calc(100% - 28px)}
.nav-link.active{color:#fff}
.header-cta{display:flex;align-items:center;gap:12px}
.header-cta .btn{padding:10px 22px;font-size:14px}
.menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer;border-radius:var(--r-sm);transition:background var(--t-fast)}
.menu-toggle:hover{background:rgba(255,255,255,.05)}
.menu-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:1px;transition:all var(--t-base);transform-origin:center}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{position:fixed;top:var(--header-h);left:0;right:0;background:rgba(11,18,32,.98);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-light);padding:20px var(--pad) 30px;transform:translateY(-100%);opacity:0;visibility:hidden;transition:all var(--t-base);z-index:999}
.mobile-nav.open{transform:translateY(0);opacity:1;visibility:visible}
.mobile-nav-links{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.mobile-nav-link{display:flex;align-items:center;gap:12px;padding:14px 16px;font-size:15px;font-weight:500;color:var(--gray-300);border-radius:var(--r-md);transition:all var(--t-fast);border:1px solid transparent}
.mobile-nav-link:hover,.mobile-nav-link.active{color:#fff;background:rgba(30,64,175,.15);border-color:rgba(59,130,246,.25)}
.mobile-nav-cta{display:flex;gap:12px}
.mobile-nav-cta .btn{flex:1;justify-content:center}
@media(max-width:1024px){.nav-menu,.header-cta{display:none}.menu-toggle{display:flex}.site-header .logo-img{height:64px;max-width:min(360px,68vw)}}
@media(max-width:640px){.site-header .logo-img{height:52px;max-width:280px}}