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

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    width: 100%;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Background */
.background-img {
    background-size: cover;
    height: 100vh;
    width: 100vw;
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    opacity: 0.65;
}

/* Main content container */
.main-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 20px;
    flex: 1;
}

/* Common box styles */
.box, .box1 {
    background-color: white;
    display: flex;
    flex-direction: column;
    margin: 2rem auto;
    padding: 2rem;
    box-shadow: 0px 0px 7px 0px rgba(0,0,0,0.75);
    line-height: 1.6;
    width: 100%;
    max-width: 1000px;
}

/* Text styles */
.AboutPTAA, .AAO {
    text-align: center;
    margin: 1.5rem 0;
    color: #800000;
    padding: 1rem;
    font-family: "Roboto", sans-serif;
    font-weight: 700;
    font-style: normal;
}

.AboutPTAA-para, .AAO-point {
    margin: 0 auto;
    font-size: clamp(1rem, 2.5vw, 1.18rem);
    font-weight: 600;
    padding: 0 1rem;
    max-width: 900px;
}

/* Header styles */
.header {
    text-align: center;
    margin-bottom: 1.5rem;
    width: 100%;
}

h1 {
    color: #2c3e50;
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 1rem;
}

/* Navigation */
.nav-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Footer styles */
footer {
    background-color: #800000;
    color: white;
    padding: 2rem 0;
    margin-top: auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

.footer-text {
    text-align: center;
    font-size: 0.9rem;
}

/* Media Queries */
@media screen and (max-width: 1200px) {
    .main-container {
        padding: 15px;
    }
    
    .box, .box1 {
        width: 95%;
        margin: 1.5rem auto;
    }
}

@media screen and (max-width: 768px) {
    .main-container {
        padding: 10px;
    }
    
    .box, .box1 {
        padding: 1.5rem;
        margin: 1rem auto;
    }

    .AboutPTAA, .AAO {
        margin: 1rem 0;
        padding: 0.5rem;
    }

    .footer-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
}

@media screen and (max-width: 480px) {
    .main-container {
        padding: 5px;
    }
    
    .box, .box1 {
        width: 98%;
        padding: 1rem;
        margin: 0.5rem auto;
    }

    .AboutPTAA-para, .AAO-point {
        font-size: 1rem;
        padding: 0 0.5rem;
    }
}