*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0
        }
        :root {
            --primary: #1e40af;
            --primary-light: #3b82f6;
            --primary-dark: #1e3a8a;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --bg: #f8fafc;
            --white: #fff;
            --text: #334155;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, .1);
            --radius: 12px
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg)
        }
        a {
            color: inherit;
            text-decoration: none
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px
        }
        .breadcrumb {
            padding: 80px 0 20px;
            background: var(--white)
        }
        .breadcrumb-list {
            display: flex;
            gap: 8px;
            list-style: none
        }
        .breadcrumb-list a {
            color: var(--primary)
        }
        .breadcrumb-list li:not(:last-child)::after {
            content: '›';
            margin-left: 8px
        }
        .page-hero {
            padding: 40px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: var(--white)
        }
        .page-hero h1 {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            margin-bottom: 16px
        }
        .page-hero p {
            opacity: .9;
            max-width: 700px
        }
        .content {
            padding: 60px 0
        }
        .main-content h2 {
            font-size: 1.5rem;
            color: var(--secondary);
            margin: 32px 0 16px
        }
        .main-content h2:first-child {
            margin-top: 0
        }
        .main-content p {
            margin-bottom: 16px
        }
        .values-grid {
            display: grid;
            gap: 24px;
            margin: 32px 0
        }
        @media(min-width:768px) {
            .values-grid {
                grid-template-columns: repeat(2, 1fr)
            }
        }
        @media(min-width:1024px) {
            .values-grid {
                grid-template-columns: repeat(3, 1fr)
            }
        }
        .value-card {
            background: var(--white);
            padding: 24px;
            border-radius: var(--radius);
            box-shadow: var(--shadow)
        }
        .value-card h3 {
            color: var(--secondary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px
        }
        .value-card svg {
            width: 24px;
            height: 24px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 2
        }
        .timeline {
            margin: 32px 0
        }
        .timeline-item {
            display: flex;
            gap: 20px;
            margin-bottom: 24px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--bg)
        }
        .timeline-year {
            flex-shrink: 0;
            width: 80px;
            font-weight: 700;
            color: var(--primary);
            font-size: 1.25rem
        }
        .timeline-content h3 {
            margin-bottom: 4px
        }
        .timeline-content p {
            color: var(--text);
            font-size: .9rem;
            margin: 0
        }
        .footer {
            background: var(--primary-dark);
            color: var(--white);
            padding: 60px 0 20px
        }
        .footer-grid {
            display: grid;
            gap: 32px;
            margin-bottom: 40px
        }
        @media(min-width:1024px) {
            .footer-grid {
                grid-template-columns: repeat(4, 1fr)
            }
        }
        .footer-title {
            margin-bottom: 16px
        }
        .footer-links {
            list-style: none
        }
        .footer-links a {
            opacity: .95;
            display: block;
            padding: 6px 0
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 20px;
            text-align: center;
            opacity: .9
        }

/* ============================================
   BULLETPROOF HEADER & MOBILE MENU
   Simple CSS that works on ALL devices
   ============================================ */

/* Header - Fixed top bar */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 9998;
    display: flex;
    align-items: center;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

        /* Logo */
        .site-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }

        .site-logo svg.logo-icon {
            width: 46px;
            height: 46px;
            flex-shrink: 0;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1;
        }

        .logo-text .logo-primary {
            font-size: 1.15rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #2074b5;
        }

        .logo-text .logo-secondary {
            font-size: 0.85rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: #0a2e52;
        }

/* Desktop Navigation */
.desktop-nav {
    display: none;
}

@media (min-width: 992px) {
    .desktop-nav {
        display: flex;
        gap: 30px;
        list-style: none;
        margin: 0;
        padding: 0;
    }
}

.desktop-nav a {
    color: #0f172a;
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}

.desktop-nav a:hover {
    color: #1e40af;
    border-bottom-color: #1e40af;
}

/* Header CTA Button */
.header-phone-btn {
    display: none;
    background: #1e40af;
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: background 0.2s;
}

@media (min-width: 992px) {
    .header-phone-btn {
        display: inline-block;
    }
}

.header-phone-btn:hover {
    background: #1e3a8a;
}

/* Mobile Menu Toggle Button */
.menu-toggle-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

@media (min-width: 992px) {
    .menu-toggle-btn {
        display: none;
    }
}

.menu-toggle-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: #0f172a;
    margin: 3px 0;
    transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle-btn.open span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-toggle-btn.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle-btn.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay - SIMPLE & BULLETPROOF */
.mobile-nav-overlay {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    z-index: 9997;
    overflow-y: auto;
    display: none;
    padding: 20px;
}

.mobile-nav-overlay.open {
    display: block;
}

.mobile-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-list li {
    border-bottom: 1px solid #e2e8f0;
}

.mobile-nav-list a {
    display: block;
    padding: 18px 10px;
    color: #0f172a;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
}

.mobile-nav-list a:active {
    background: #f1f5f9;
    color: #1e40af;
}

/* Mobile Contact Buttons */
.mobile-contact-btns {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-call-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: #1e40af;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 10px;
}

.mobile-whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: #25d366;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 10px;
}

/* ============================================
   PROFESSIONAL FOOTER
   ============================================ */
.site-footer {
    background: #1e3a8a;
    color: #fff;
    padding: 50px 0 20px;
}

.footer-grid {
    display: grid;
    gap: 30px;
    margin-bottom: 40px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
    }
}

.footer-brand h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.footer-brand p {
    opacity: 0.85;
    line-height: 1.7;
    font-size: 0.9rem;
}

.footer-section h4 {
    font-size: 1rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #fff;
}

.footer-contact-info p {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    line-height: 1.5;
}

.footer-contact-info a {
    color: #fff;
    text-decoration: none;
}

.footer-contact-info strong {
    color: #f59e0b;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.8;
}

/* Body padding for fixed header */
body {
    padding-top: 70px;
}

/* ============================================
   STICKY CALL & WHATSAPP BUTTONS
   ============================================ */
.sticky-buttons {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 9500;
}

.sticky-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: transform 0.2s, box-shadow 0.2s;
}

.sticky-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.sticky-btn.call {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.sticky-btn.whatsapp {
    background: #25d366;
}

.sticky-btn svg {
    width: 28px;
    height: 28px;
    fill: #fff;
}

/* Mobilde biraz küçült */
@media (max-width: 480px) {
    .sticky-buttons {
        bottom: 16px;
        right: 16px;
        gap: 10px;
    }
    .sticky-btn {
        width: 52px;
        height: 52px;
    }
    .sticky-btn svg {
        width: 24px;
        height: 24px;
    }
}



                .footer-seo-accordions details > summary::-webkit-details-marker { display: none; }
                .footer-seo-accordions details[open] summary .acc-icon { transform: rotate(45deg); transition: transform 0.3s ease; }
                .footer-seo-accordions details summary .acc-icon { transition: transform 0.3s ease; }
                .footer-links a:hover, .footer-seo-accordions a:hover { color: #fff !important; text-decoration: underline !important; padding-left: 4px; transition: all 0.2s; }
            
.footer-seo-accordions a:hover { color: #fff !important; }