:root {
            --primary-color: #2c5aa0;
            --secondary-color: #f8f9fa;
            --accent-color: #ff6b35;
            --text-dark: #2d3748;
            --text-light: #718096;
            --white: #ffffff;
            --gradient-primary: linear-gradient(135deg, #2c5aa0 0%, #1e3a8a 100%);
            --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #e53e3e 100%);
            --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.1);
            --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.15);
            --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.2);
        }

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

        body {
            font-family: 'Poppins', sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            overflow-x: hidden;
        }

        /* Custom Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--secondary-color);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary-color);
            border-radius: 4px;
        }

        /* Navigation Styles */
        .custom-navbar {
            background: var(--white);
            box-shadow: var(--shadow-light);
            padding: 1rem 0;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .custom-navbar.scrolled {
            padding: 0.5rem 0;
            box-shadow: var(--shadow-medium);
        }

        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
            text-decoration: none;
        }

        .navbar-nav .nav-link {
            color: var(--text-dark) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            padding: 0.5rem 1rem !important;
            border-radius: 25px;
            transition: all 0.3s ease;
            position: relative;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary-color) !important;
            background: rgba(44, 90, 160, 0.1);
            transform: translateY(-2px);
        }

        .navbar-nav .nav-link.active {
            color: var(--white) !important;
            background: var(--gradient-primary);
        }

        /* Hero Section */
        .hero-section {
            background: var(--gradient-primary);
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('images/buzdolabi.png') center/cover;
            opacity: 0.1;
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .hero-subtitle {
            font-size: 1.3rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
            font-weight: 300;
        }

        .btn-custom-primary {
            background: var(--gradient-accent);
            border: none;
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            color: var(--white);
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-medium);
        }

        .btn-custom-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-heavy);
            color: var(--white);
        }

        .btn-custom-secondary {
            background: transparent;
            border: 2px solid var(--white);
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            color: var(--white);
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            margin-left: 1rem;
        }

        .btn-custom-secondary:hover {
            background: var(--white);
            color: var(--primary-color);
            transform: translateY(-3px);
        }

        /* Services Section */
        .services-section {
            padding: 6rem 0;
            background: var(--secondary-color);
        }

        .section-title {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-dark);
            text-align: center;
            margin-bottom: 1rem;
        }

        .section-subtitle {
            font-size: 1.2rem;
            color: var(--text-light);
            text-align: center;
            margin-bottom: 4rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .service-card {
            background: var(--white);
            border-radius: 20px;
            padding: 2.5rem;
            text-align: center;
            box-shadow: var(--shadow-light);
            transition: all 0.3s ease;
            height: 100%;
            border: none;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--gradient-primary);
            transition: all 0.5s ease;
            z-index: 1;
        }

        .service-card:hover::before {
            left: 0;
        }

        .service-card:hover .service-thumbnail img {
            transform: scale(1.05);
        }

        .service-card * {
            position: relative;
            z-index: 2;
            transition: all 0.3s ease;
        }

        .service-card:hover * {
            color: var(--white) !important;
        }

        .service-thumbnail {
            width: 100%;
            height: 180px;
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow-light);
            transition: transform 0.3s ease;
        }

        .service-thumbnail img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .service-icon {
            font-size: 3.5rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }

        .service-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 1rem;
        }

        .service-description {
            color: var(--text-light);
            font-size: 1rem;
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }

        .service-link {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
        }

        .service-link:hover {
            color: var(--accent-color);
        }

        /* Features Section */
        .features-section {
            padding: 6rem 0;
            background: var(--white);
        }

        .feature-item {
            text-align: center;
            padding: 2rem;
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 2rem;
            color: var(--white);
        }

        .feature-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 1rem;
        }

        .feature-description {
            color: var(--text-light);
            font-size: 1rem;
        }

        /* CTA Section */
        .cta-section {
            background: var(--gradient-primary);
            padding: 5rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('images/buzdolabi.png')/cover;
            opacity: 0.1;
            z-index: 1;
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 1rem;
        }

        .cta-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
        }

        /* Footer */
        .custom-footer {
            background: var(--text-dark);
            color: var(--white);
            padding: 3rem 0 1rem;
            padding-bottom: 70px; /* Buton yüksekliğinden biraz fazla */
        }

        .footer-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            color: var(--white);
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: all 0.3s ease;
        }

        .footer-link:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding-top: 1rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.6);
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }

            .hero-subtitle {
                font-size: 1.1rem;
            }

            .btn-custom-secondary {
                margin-left: 0;
                margin-top: 1rem;
            }

            .section-title {
                font-size: 2.2rem;
            }

            .service-card {
                margin-bottom: 2rem;
            }
        }

        /* Animation Classes */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .slide-in-left {
            opacity: 0;
            transform: translateX(-50px);
            transition: all 0.6s ease;
        }

        .slide-in-left.visible {
            opacity: 1;
            transform: translateX(0);
            margin-top: 30px;
        }

        .slide-in-right {
            opacity: 0;
            transform: translateX(50px);
            transition: all 0.6s ease;
        }

        .slide-in-right.visible {
            opacity: 1;
            transform: translateX(0);
        }
        @media (max-width: 991px) {
            .hero-section {
            padding-top: 80px; /* Navbar yüksekliği kadar boşluk */
            }
        }