*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0
        }

        :root {
            --primary: #1e40af;
            --primary-light: #3b82f6;
            --primary-dark: #1e3a8a;
            --secondary: #0f172a;
            --accent: #f59e0b;
            --success: #10b981;
            --bg: #f8fafc;
            --white: #fff;
            --text: #334155;
            --text-light: #475569;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, .1);
            --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .1);
            --radius: 12px;
            --transition: all .3s ease
        }

        html {
            scroll-behavior: smooth
        }

        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;
            transition: var(--transition)
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px
        }

        .skip-link {
            position: absolute;
            top: -100%;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: var(--white);
            padding: 12px 24px;
            border-radius: var(--radius);
            z-index: 9999
        }

        .skip-link:focus {
            top: 10px
        }

        .breadcrumb {
            padding: 80px 0 20px;
            background: var(--white)
        }

        .breadcrumb-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            list-style: none;
            font-size: 1rem
        }

        .breadcrumb-list a {
            color: var(--primary)
        }

        .breadcrumb-list a:hover {
            text-decoration: underline
        }

        .breadcrumb-list li:not(:last-child)::after {
            content: '›';
            margin-left: 8px;
            color: var(--text-light)
        }

        .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 {
            font-size: 1.1rem;
            opacity: .9;
            max-width: 700px
        }

        .content {
            padding: 60px 0
        }

        .content-grid {
            display: grid;
            gap: 40px
        }

        @media(min-width:1024px) {
            .content-grid {
                grid-template-columns: 2fr 1fr
            }
        }

        .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;
            color: var(--text)
        }

        .main-content ul,
        .main-content ol {
            margin: 16px 0;
            padding-left: 24px
        }

        .main-content li {
            margin-bottom: 8px
        }

        .feature-box {
            background: var(--white);
            padding: 24px;
            border-radius: var(--radius);
            margin: 24px 0;
            border-left: 4px solid var(--primary)
        }

        .feature-box h3 {
            color: var(--secondary);
            margin-bottom: 8px
        }

        .sidebar {
            position: sticky;
            top: 100px
        }

        .sidebar-card {
            background: var(--white);
            padding: 24px;
            border-radius: var(--radius);
            margin-bottom: 24px;
            box-shadow: var(--shadow)
        }

        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            color: var(--secondary)
        }

        .sidebar-card ul {
            list-style: none
        }

        .sidebar-card li {
            padding: 10px 0;
            border-bottom: 1px solid var(--bg)
        }

        .sidebar-card li:last-child {
            border: none
        }

        .sidebar-card a {
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px
        }

        .sidebar-card a:hover {
            color: var(--primary)
        }

        .sidebar-card svg {
            width: 16px;
            height: 16px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2
        }

        .cta-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--white);
            text-align: center
        }

        .cta-card h3 {
            color: var(--white)
        }

        .cta-card p {
            opacity: .9;
            margin-bottom: 16px
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            transition: var(--transition)
        }

        .btn-accent {
            background: var(--accent);
            color: var(--white)
        }

        .btn-accent:hover {
            background: #d97706
        }

        .process-list {
            counter-reset: process
        }

        .process-item {
            display: flex;
            gap: 16px;
            margin: 20px 0;
            padding: 20px;
            background: var(--white);
            border-radius: var(--radius)
        }

        .process-item::before {
            counter-increment: process;
            content: counter(process);
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700
        }

        .process-item div h3 {
            margin-bottom: 4px;
            color: var(--secondary)
        }

        .process-item div p {
            color: var(--text-light);
            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:768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr)
            }
        }

        @media(min-width:1024px) {
            .footer-grid {
                grid-template-columns: repeat(4, 1fr)
            }
        }

        .footer-brand p {
            opacity: .95;
            margin-top: 12px;
            font-size: .9rem
        }

        .footer-title {
            font-size: 1.1rem;
            margin-bottom: 16px
        }

        .footer-links {
            list-style: none
        }

        .footer-links a {
            opacity: .95;
            display: block;
            padding: 6px 0
        }

        .footer-links a:hover {
            opacity: 1
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 20px;
            text-align: center;
            font-size: .875rem;
            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; }