/* Bilginex — ortak üst menü (ana sayfa menüsüyle birebir aynı). Blog ve diğer sayfalarda kullanılır. */
nav,.mobile-menu,.mega-menu{--bg:#f0f2f5;--bg2:#f7f8fa;--surface:#ffffff;--border:rgba(15,23,60,0.09);--border2:rgba(15,23,60,0.16);--text:#0e1628;--text2:#485070;--text3:#9099b5;--accent:#1d4ed8;--accent2:#2563eb;--accentlt:#eff4ff;--teal:#0d9488;--font-d:'Plus Jakarta Sans',sans-serif;--font-b:'Plus Jakarta Sans',sans-serif;}
nav,nav *,.mobile-menu,.mobile-menu *{box-sizing:border-box;}
nav{position: fixed; top: 0; left: 0; right: 0; z-index: 200;
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 60px;
    background: linear-gradient(to right, rgba(255,255,255,0.97) 0%, rgba(242,244,247,0.92) 40%, rgba(228,231,237,0.90) 100%);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);}
.nav-logo{font-family: 'Plus Jakarta Sans', sans-serif; font-size: 22px; font-weight: 700; letter-spacing: -0.5px; color: var(--text); text-decoration: none; display:inline-flex; align-items:center;}
.nav-logo span{color:#6C6FE0;}
.nav-links{display: flex; gap: 18px; list-style: none;}
.nav-links a{color: var(--text2); text-decoration: none; font-size: 14px; transition: color 0.2s; white-space: nowrap;}
.nav-links a:hover{color: var(--text);}
.nav-cta{display: flex; gap: 10px;}
nav .btn-ghost{padding: 9px 20px; border: 1px solid var(--border2); background: transparent; color: var(--text); font-family: var(--font-b); font-size: 15px; font-weight: 500; border-radius: 7px; cursor: pointer; transition: background 0.2s; text-decoration: none;}
nav .btn-ghost:hover{background: var(--surface);}
nav .btn-primary{padding: 9px 22px; background: var(--accent2); border: none; color: #fff; font-family: var(--font-b); font-size: 15px; font-weight: 500; border-radius: 7px; cursor: pointer; transition: background 0.2s; text-decoration: none;}
nav .btn-primary:hover{background: var(--accent);}
nav{overflow: visible !important;}
.nav-links li{position: relative;}
.nav-links li.has-mega > a::after{content: '';
    display: inline-block;
    width: 14px; height: 14px;
    margin-left: 3px; vertical-align: middle;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23485070' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-size: contain; background-repeat: no-repeat;
    transition: transform 0.25s ease;}
.nav-links li.has-mega:hover > a::after{transform: rotate(180deg);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230e1628' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");}
.mega-menu{position: fixed;
    top: 64px; left: 0; right: 0;
    background: #ffffff;
    border-top: 3px solid transparent;
    border-image: linear-gradient(90deg, #2563eb 0%, #6366f1 50%, #0d9488 100%) 1;
    box-shadow: 0 24px 80px rgba(14,22,60,0.14), 0 4px 16px rgba(14,22,60,0.06);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 10000;
    transform: translateY(-6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s 0.18s;}
.mega-menu::after{content: ''; position: absolute; top: -20px; left: 0; right: 0; height: 20px;}
.nav-links li.has-mega:hover .mega-menu, .nav-links li.has-mega:focus-within .mega-menu{opacity: 1; visibility: visible; pointer-events: all;
    transform: translateY(0);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s 0s;}
.mega-arrow{display: none;}
.mega-inner{max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 0;}
.mega-panel-left{width: 260px;
    flex-shrink: 0;
    background: linear-gradient(160deg, #f8faff 0%, #f0f4ff 100%);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-right: 1px solid #e8ecf8;}
.mega-panel-eyebrow{font-size: 10px; font-weight: 700; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--accent2);
    margin-bottom: 10px; display: flex; align-items: center; gap: 6px;}
.mega-panel-eyebrow::before{content: ''; display: block; width: 16px; height: 2px;
    background: var(--accent2); border-radius: 1px;}
.mega-panel-title{font-family: var(--font-d); font-size: 20px; font-weight: 800;
    color: var(--text); letter-spacing: -0.5px; line-height: 1.2;
    margin-bottom: 10px;}
.mega-panel-desc{font-size: 13px; color: var(--text2); line-height: 1.65;
    font-weight: 300; margin-bottom: 24px;}
.mega-panel-cta{display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 600; color: var(--accent2);
    text-decoration: none; padding: 9px 16px;
    background: white; border: 1.5px solid #dbeafe;
    border-radius: 8px;
    transition: all 0.2s; box-shadow: 0 1px 4px rgba(37,99,235,0.08);}
.mega-panel-cta:hover{background: var(--accent2); color: #fff;
    border-color: var(--accent2);
    box-shadow: 0 4px 16px rgba(37,99,235,0.3);
    gap: 12px;}
.mega-panel-cta svg{transition: transform 0.2s;}
.mega-panel-cta:hover svg{transform: translateX(3px);}
.mega-panel-right{flex: 1;
    padding: 36px 40px 28px;
    display: grid;
    gap: 0;
    align-items: start;}
.mega-cols-3{grid-template-columns: repeat(3,1fr);}
.mega-cols-4{grid-template-columns: repeat(4,1fr);}
.mega-col{padding: 0 28px;
    border-right: 1px solid #f0f2f8;}
.mega-col:first-child{padding-left: 0;}
.mega-col:last-child{border-right: none;}
.mega-col-title{font-size: 10px; font-weight: 700; letter-spacing: 0.11em;
    text-transform: uppercase; color: var(--text3);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eef0f8;}
.mega-col-title a{color: inherit; text-decoration: none; transition: color 0.15s;}
.mega-col-title a:hover{color: var(--accent2);}
.mega-link{display: flex; align-items: center; gap: 12px;
    padding: 9px 10px; margin: 0 -10px;
    text-decoration: none; border-radius: 10px;
    transition: background 0.15s;}
.mega-link:hover{background: #f5f7ff;}
.mega-link-icon-wrap{width: 34px; height: 34px; border-radius: 9px;
    background: #f5f7ff; border: 1px solid #eaecfb;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: background 0.18s, border-color 0.18s, transform 0.18s, box-shadow 0.18s;}
.mega-link:hover .mega-link-icon-wrap{background: #eff2ff;
    border-color: #c7d2fe;
    transform: scale(1.1) rotate(-3deg);
    box-shadow: 0 4px 12px rgba(99,102,241,0.15);}
.mega-link-icon-wrap svg{display: block;}
.mega-link-name{font-size: 13.5px; font-weight: 500; color: var(--text);
    display: block; line-height: 1.3; transition: color 0.15s;}
.mega-link:hover .mega-link-name{color: var(--accent2);}
.mega-link-name.highlight{color: var(--accent2) !important; font-weight: 600;}
.mega-link-desc{font-size: 11.5px; color: var(--text3);
    display: block; margin-top: 1px; font-weight: 300; line-height: 1.3;}
.mega-footer{max-width: 1200px; margin: 0 auto;
    padding: 14px 40px 14px 300px;
    border-top: 1px solid #eef0f8;
    display: flex; justify-content: space-between; align-items: center;
    background: #fafbff;}
.mega-footer-text{font-size: 12px; color: var(--text3); font-weight: 300;}
.mega-footer-link{font-size: 12.5px; font-weight: 600; color: var(--accent2);
    text-decoration: none; transition: gap 0.2s;
    display: inline-flex; align-items: center; gap: 6px;}
.mega-footer-link:hover{gap: 10px;}
.mega-grid{display: grid; gap: 0; align-items: start;}
.mega-grid-4{grid-template-columns: repeat(4, 1fr);}
.mega-grid-3{grid-template-columns: repeat(3, 1fr);}
@media (max-width: 768px){
  nav{padding: 14px 20px; position: relative;}
  .nav-links{display: none;}
  nav .nav-cta .btn-ghost{display: none;}
  nav .nav-cta .btn-primary{font-size: 12px; padding: 8px 14px;}
  .hamburger{display: flex; flex-direction: column; justify-content: center;
      gap: 5px; cursor: pointer; padding: 4px; margin-left: auto;}
  .hamburger span{display: block; width: 24px; height: 2px;
      background: var(--text); border-radius: 2px;
      transition: all 0.3s ease;}
  .hamburger.open span:nth-child(1){transform: translateY(7px) rotate(45deg);}
  .hamburger.open span:nth-child(2){opacity: 0;}
  .hamburger.open span:nth-child(3){transform: translateY(-7px) rotate(-45deg);}
  .mobile-menu{display: none; position: fixed; top: 64px; left: 0; right: 0;
      background: #fff; border-top: 1px solid var(--border);
      box-shadow: 0 8px 24px rgba(0,0,0,0.12); z-index: 999;
      padding: 16px 20px; flex-direction: column; gap: 4px;
      max-height: calc(100vh - 64px); overflow-y: auto;}
  .mobile-menu.open{display: flex;}
  .mobile-menu a{display: block; padding: 12px 8px; font-size: 15px;
      color: var(--text); text-decoration: none; border-radius: 6px;
      font-weight: 500;}
  .mobile-menu a:hover{background: var(--bg2);}
  .mobile-menu .mm-section{font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text2); padding: 16px 8px 6px;}
}