/* Dörtyol navigation: calm glass, a clear brand anchor, precise control states. */
.header{background:rgba(255,255,255,.94);backdrop-filter:blur(18px) saturate(145%);border-bottom:1px solid #d7e4f1;box-shadow:0 3px 22px #123b6406;transition:box-shadow .2s,background .2s}.header.is-scrolled{background:rgba(255,255,255,.98);box-shadow:0 8px 30px #123b6414}.header>.header-utility{background:#f1f6fb;border-bottom:1px solid #e4edf6}.header .container{width:min(1400px,calc(100% - 64px))}.header-utility>.container{min-height:46px;gap:22px}.header-signature{display:flex;align-items:center;gap:14px;font-size:10px;color:#5b7390;white-space:nowrap}.header-signature>i{width:6px;height:6px;background:#3289cf;border-radius:50%;box-shadow:0 0 0 4px #3289cf10}.header-signature strong{font-weight:600;color:#2b4b6d}.header-signature-divider{width:1px;height:12px;background:#c9d9e8}.header .site-search-trigger{margin-left:auto;gap:9px;border:1px solid transparent;border-radius:9px;font-size:11px;min-height:36px;padding:5px 9px;color:#375a7d}.header .site-search-trigger svg{width:16px;height:16px}.header .site-search-trigger:hover{background:white;border-color:#d7e4f1}.header .site-search-trigger kbd{font-size:9px;padding:3px 5px;color:#758ca2}.header .language-switch{border:1px solid #d9e5f1;border-radius:10px;background:#eaf1f8;gap:2px;margin:0;padding:2px}.header .language-switch a{min-width:35px;min-height:30px;padding:5px;font-size:10px;border-radius:7px}.header .language-switch a[aria-current]{background:#fff;color:#174a7b;box-shadow:0 1px 5px #183e6410}.header .header-utility .container>div:last-child{gap:18px;font-size:10px;white-space:nowrap}.header .header-utility .container>div:last-child a:hover{color:#126dba}.header .header-inner{min-height:98px;gap:24px}.header .header-inner .brand{width:230px;flex-shrink:0}.header #navigation{gap:7px;font-size:12px}.header #navigation>a,.header #navigation .nav-dropdown>summary{padding:12px 10px;border-radius:9px;min-height:44px;font-size:12px;font-weight:600;transition:background .18s,color .18s;text-decoration:none}.header #navigation>a:hover,.header #navigation .nav-dropdown>summary:hover{background:#eef5fc;color:#185c97}.header #navigation>a[aria-current="page"],.header #navigation summary.current,.header #navigation .nav-dropdown[open]>summary{background:#eaf3fd;color:#1a64a6;text-decoration:none}.header #navigation .nav-contact{background:linear-gradient(135deg,#226caf,#183b64);color:#fff;padding:14px 20px;gap:17px;margin-left:6px;border:1px solid #1d568b;box-shadow:0 4px 14px #1b4f8520}.header #navigation .nav-contact:hover,.header #navigation .nav-contact[aria-current="page"]{background:#164b7d;color:white;box-shadow:0 5px 18px #1b4f8530}.header #navigation .nav-dropdown>summary>span{transition:transform .18s}.header #navigation .nav-dropdown[open]>summary>span{transform:rotate(180deg)}.header .mega-panel{top:calc(100% + 9px);right:0;width:min(940px,100%);padding:26px;background:#fffffff7;backdrop-filter:blur(20px);border:1px solid #d7e4f1;border-radius:22px;box-shadow:0 24px 70px #12375424}.header .corporate-panel{grid-template-columns:.95fr 1.2fr;gap:30px;width:min(760px,100%)}.header .mega-intro{padding:30px;border-radius:16px;background:radial-gradient(ellipse at 100% 100%,#cce1f9,transparent 70%),#edf5fd}.header .mega-intro .eyebrow{font-size:9px;letter-spacing:1.8px}.header .mega-intro h2{font-size:34px;line-height:1.16;letter-spacing:-1.3px;margin:22px 0}.header .mega-intro p{font-size:12px}.header-principles{display:flex;flex-wrap:wrap;gap:6px;margin-top:32px}.header-principles span{font-size:10px;padding:7px 9px;background:#ffffffb0;color:#35658e;border:1px solid #dce9f5;border-radius:6px}.header .mega-links{align-content:start;gap:3px}.header .mega-links a{min-height:48px;font-size:13px;border:0;padding:14px;border-radius:10px}.header .mega-links a:hover{background:#edf5fd;color:#1c619d}.header .mega-links a>span{color:#6b94bc}.header .mega-heading{align-items:center;gap:20px;padding:4px 4px 22px;margin-bottom:14px}.header .mega-heading strong{font-size:23px;letter-spacing:-.5px;color:#193e65}.header .mega-operation-links{gap:12px}.header .mega-operation-links a{font-size:11px;min-height:44px;border-radius:8px;padding:7px}.header .mega-operation-links a:hover{background:#edf5fd}.header .mega-service-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.header .mega-service-grid>a{align-items:flex-start;gap:12px;padding:16px 12px;border:1px solid transparent;border-radius:12px;min-height:112px}.header .mega-service-grid>a:hover{background:#f1f7fd;border-color:#d5e5f4}.header .mega-service-grid svg{color:#397db7;width:24px;height:24px;margin-top:1px}.header .mega-service-grid strong{display:block;font-size:12px;line-height:1.5;font-weight:600;color:#1e466d}.header .mega-service-grid small{display:block;font-size:11px;line-height:1.6;margin-top:7px;color:#698096;font-weight:400}.header .mega-footer{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:20px 16px;margin-top:12px;border-radius:12px;background:#edf5fc}.header .mega-footer .eyebrow{font-size:8px;letter-spacing:1.5px}.header .mega-footer p{margin:6px 0 0;font-size:13px;color:#284f76}.header .mega-footer>a{min-height:44px;display:flex;align-items:center;font-size:12px;font-weight:600;white-space:nowrap;color:#1c64a2}.header .menu-toggle{min-height:44px;border-radius:11px;background:#f3f7fc;border:1px solid #d9e6f2;padding:12px 16px;color:#234d77}.menu-lines{display:grid;gap:5px;width:17px}.menu-lines i{display:block;height:1.5px;width:17px;background:currentColor;transition:transform .18s}.menu-toggle[aria-expanded="true"] .menu-lines i:first-child{transform:translateY(3.25px) rotate(45deg)}.menu-toggle[aria-expanded="true"] .menu-lines i:last-child{transform:translateY(-3.25px) rotate(-45deg)}
@media(min-width:1201px) and (max-width:1400px){.header .header-inner .brand{width:207px}.header #navigation{gap:4px}.header #navigation>a,.header #navigation .nav-dropdown>summary{font-size:11px;padding-inline:8px}.header #navigation .nav-contact{padding-inline:16px;gap:12px}.header-signature>span:last-child{display:none}.header-signature-divider{display:none}}
@media(max-width:1200px){.header .header-utility{display:block}.header .header-utility .container>span{display:none}.header .header-utility .container>div:last-child{display:none}.header .site-search-trigger{margin:0;min-height:44px;font-size:12px}.header .language-switch{margin-left:auto}.header .language-switch a{min-width:40px;min-height:36px}.header .header-inner{min-height:82px}.header .header-inner .brand{width:220px}.header .menu-toggle{display:flex;align-items:center;gap:16px}.header #navigation{display:none;position:absolute;left:0;right:0;top:calc(100% + 8px);background:#fffffff9;border:1px solid #d8e6f2;border-radius:18px;padding:16px;max-height:calc(100dvh - 210px);overflow:auto;overscroll-behavior:contain;box-shadow:0 18px 50px #143c6426}.header #navigation.open{display:flex;flex-direction:column;align-items:stretch;gap:4px}.header #navigation>a,.header #navigation .nav-dropdown>summary{font-size:14px;min-height:48px;padding:14px;border:0;justify-content:space-between;white-space:normal}.header #navigation .nav-contact{margin:10px 0 0;justify-content:center}.header #navigation .mega-panel{position:static;width:100%;background:#f6f9fd;border:0;border-radius:12px;padding:12px;box-shadow:none;backdrop-filter:none}.header #navigation .corporate-panel{display:block}.header .mega-intro{display:none}.header .mega-links{padding:0}.header .mega-links a{font-size:13px}.header .mega-heading{display:block;padding:8px 0 12px;margin-bottom:8px;border-bottom:1px solid #dce7f2}.header .mega-heading strong{font-size:19px}.header .mega-operation-links{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.header .mega-operation-links a{padding:7px;font-size:11px}.header .mega-service-grid{grid-template-columns:1fr 1fr;padding:0}.header .mega-service-grid>a{padding:12px;min-height:100px}.header .mega-footer{padding:14px;gap:12px}.header .mega-footer .eyebrow{letter-spacing:1px}.header .mega-footer p{font-size:12px}}
@media(max-width:700px){.header .container{width:calc(100% - 32px)}.header .header-utility>.container{min-height:46px}.header .site-search-trigger kbd{display:none}.header .site-search-trigger{padding-left:0}.header .header-inner{min-height:82px;gap:12px}.header .header-inner .brand{width:205px}.header .menu-toggle{font-size:11px;padding:12px;gap:12px}.header #navigation{padding:12px;max-height:calc(100dvh - 205px)}.header .mega-service-grid{grid-template-columns:1fr;gap:4px}.header .mega-service-grid>a{min-height:76px;padding:12px;gap:14px}.header .mega-service-grid strong{font-size:13px}.header .mega-service-grid small{font-size:11px;margin-top:4px}.header .mega-footer{display:block}.header .mega-footer>a{margin-top:8px}.header .mega-operation-links{display:grid;grid-template-columns:1fr 1fr}.header .mega-operation-links a{font-size:10px}}
@media(max-width:370px){.header .header-inner .brand{width:188px}.header .menu-toggle{padding:11px;gap:9px}}
.header .mega-panel{background:#fff}
@media(max-width:1200px){.header .language-switch a{min-width:44px;min-height:44px}}
@media(prefers-reduced-motion:reduce){.header,.header #navigation>a,.header #navigation .nav-dropdown>summary,.menu-lines i{transition:none}}