.about-hero {
    position: relative;
    text-align: center;
    padding: 120px 30px 240px;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/logo.png');
    background-size: cover;
    background-position: center;
    opacity: 0.25;
    z-index: 0;
}

.about-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(234, 227, 210, 0.3), rgba(245, 241, 232, 0));
    z-index: 1;
}

.about-hero h1,
.about-hero p {
    position: relative;
    z-index: 2;
}

        .about-hero h1 {
            font-size: 3rem;
            margin-bottom: 16px;
        }

        .about-hero p {
            font-size: 1.2rem;
            color: #4a4a4a;
            max-width: 700px;
            margin: 0 auto;
        }

        .about-container {
            max-width: 800px;
            margin: 0 auto;
            padding: 60px 30px 80px;
        }

        .about-section {
            margin-bottom: 60px;
        }

        .about-section h2 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: #1a1a1a;
            border-bottom: 2px solid #e5ddc8;
            padding-bottom: 12px;
        }

        .about-section p {
            font-size: 1.15rem;
            line-height: 1.9;
            color: #2a2a2a;
            margin-bottom: 20px;
        }

        .mission-box {
            background-color: rgba(234, 227, 210, 0.3);
            padding: 30px;
            border-left: 4px solid #8b6f47;
            margin: 40px 0;
        }

        .mission-box h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: #8b6f47;
        }

        .mission-box p {
            font-size: 1.15rem;
            line-height: 1.8;
            color: #2a2a2a;
            margin: 0;
        }

        .principles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }

        .principle-card {
            background-color: #fefdfb;
            padding: 24px;
            border: 1px solid #e5ddc8;
            border-radius: 6px;
        }

        .principle-card h4 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: #1a1a1a;
        }

        .principle-card p {
            font-size: 1rem;
            line-height: 1.7;
            color: #4a4a4a;
            margin: 0;
        }

        @media (max-width: 768px) {
            .about-hero {
                padding: 80px 40px 200px;
            }

            .about-hero h1 {
                font-size: 2.2rem;
            }

            .about-container {
                padding: 40px 20px 60px;
            }

            .principles-grid {
                grid-template-columns: 1fr;
            }

            /* на мобилни използваме отделна картинка istoria-mobile */
            .about-hero::before {
                background-image: url('../images/istoria.png');
                background-position: center center;
                background-size: cover;
            }
        }