:root {
            --primary-color: #5c6ac4;
            --secondary-color: #f5f5ff;
            --accent-color: #ffb3b3;
            --text-color: #333333;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            color: var(--text-color);
        }

        /* Navbar */
        .navbar {
            background-color: #ffffff;
        }

        .navbar-brand span {
            font-weight: 600;
            color: var(--primary-color);
        }

        .nav-link {
            font-weight: 500;
        }

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

        /* Hero */
        #home {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #ffffff 0%, #f0f2ff 50%, #ffeef0 100%);
        }

        .hero-title {
            font-size: clamp(2rem, 3vw + 1rem, 3rem);
            font-weight: 700;
            color: var(--primary-color);
        }

        .hero-subtitle {
            font-size: 1.1rem;
            margin-top: 1rem;
            max-width: 540px;
        }

        .hero-tagline {
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 0.18em;
            color: #777;
        }

        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }

        .btn-primary:hover {
            background-color: #4a57a2;
            border-color: #4a57a2;
        }

        /* Profile image */
        .profile-wrapper {
            display: flex;
            justify-content: center;
        }

        .profile-photo {
            width: 230px;
            height: 230px;
            border-radius: 50%;
            object-fit: cover;
            border: 6px solid #ffffff;
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
        }

        /* Sections */
        section {
            padding: 5rem 0;
        }

        .section-light {
            background-color: #ffffff;
        }

        .section-muted {
            background-color: var(--secondary-color);
        }

        .section-title {
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }

        .section-subtitle {
            max-width: 720px;
            margin: 0 auto 2rem auto;
            color: #555;
        }

        /* Lists */
        .check-list {
            list-style: none;
            padding-left: 0;
        }

        .check-list li::before {
            content: "✔";
            color: var(--primary-color);
            margin-right: 0.5rem;
        }

        /* Testimonials */
        .testimonial-card {
            background-color: #ffffff;
            border-radius: 0.75rem;
            padding: 1.5rem;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #eee;
            height: 100%;
        }

        .testimonial-name {
            font-weight: 600;
            margin-top: 0.75rem;
        }

        .testimonial-meta {
            font-size: 0.9rem;
            color: #777;
        }

        /* Contact */
        .contact-card {
            border-radius: 0.75rem;
            border: 1px solid #e5e5ff;
            background-color: #ffffff;
            box-shadow: 0 8px 18px rgba(0, 0, 0, 0.03);
        }

        /* Footer */
        footer {
            padding: 2rem 0;
            background-color: #ffffff;
            border-top: 1px solid #eee;
            font-size: 0.9rem;
        }

        /* Small helper */
        .badge-zoom {
            background-color: var(--accent-color);
            color: #5a2b2b;
        }

        .about-certificates {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .about-certificates img {
            width: 200px;
            height: auto;
            object-fit: contain;
        }

        #lightboxOverlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(0, 0, 0, 0.85);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 99999;
        }

        #lightboxOverlay img {
            max-width: 90%;
            max-height: 90%;
            border: 3px solid white;
            border-radius: 4px;
        }

        @media (max-width: 991.98px) {
            body {
                padding-top: 4.5rem;

            }
        }

        section {
            scroll-margin-top: 5rem;
            /* ennyivel lejjebb áll meg a görgetés anchorre */
        }