.header-section {
    background-size: cover;
    background-position: center;
    text-align: center;
    color: #fff;
    position: relative;
}

.header-section h1 {
    font-size: 3.2rem;
    font-weight: 600;
    color: #1b2a4e; /* lacivert */
    letter-spacing: 1px;
    text-transform: uppercase;
    font-family: 'Montserrat', sans-serif;
}

/* Hakkımızda metni */
.about-section {
    max-width: 1000px;
    margin: 60px auto;
    text-align: center;
    padding: 0 20px;
}

.about-section h2 {
    font-size: 2.4rem;
    font-weight: 600;
    color: #222;
    margin-bottom: 1.5rem;
    position: relative;
}

.about-section h2::after {
    content: "";
    width: 10rem;
    height: 3px;
    background: #a2781b;
    display: block;
    margin: 0.5rem auto;
    border-radius: 2px;
}

.about-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.about-image {
    max-width: 600px;
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.about-section p {
    font-size: 1.1rem;
    color: #444;
    line-height: 1.9;
    margin-top: 1rem;
    text-align: justify;
}

/* Misyon - Vizyon kartları */
.mission-vision {
    display: flex;
    justify-content: center;
    gap: 40px;
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
    flex-wrap: wrap;
}

.mission-vision .card {
    flex: 1 1 300px;
    background: #fff;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    text-align: center;
}

.mission-vision .card h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    position: relative;
    text-decoration: none;
}

.mission-vision .card h3::after {
    content: "";
    width: 80px;
    height: 3px;
    background: #a2781b;
    display: block;
    margin: 0.5rem auto;
    border-radius: 2px;
    text-decoration: none;
}

.mission-vision .card p {
    font-size: 1.05rem;
    color: #444;
    line-height: 1.8;
    text-align: justify;
}

/* Responsive tasarım */
@media (max-width: 768px) {
    .about-content {
        flex-direction: column;
    }

    .about-image {
        max-width: 100%;
    }

    .mission-vision {
        flex-direction: column;
        gap: 20px;
    }
}