/* =================== GENERAL STYLES =================== */
body {
    font-family: 'Poppins', sans-serif;
    background-color: #000; /* Black background */
    color: white;
    text-align: center;
    margin: 0;
    padding: 0;
}

/* =================== NAVBAR =================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, #0f0f0f, #232323);
    padding: 8px 0; /* Reduced height */
    box-shadow: 0px 4px 20px rgba(255, 140, 0, 0.7);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Navbar Links */
.nav-links {
    list-style: none;
    display: flex;
    gap: 15px;
}

.nav-links li a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    padding: 6px 12px;
    transition: 0.3s ease-in-out;
}

/* Hover Effect */
.nav-links li a:hover {
    color: black;
    background-color: rgba(255, 165, 0, 0.9);
    box-shadow: 0px 4px 10px rgba(255, 140, 0, 0.7);
    border-radius: 8px;
    padding: 8px 14px;
}

/* =================== CONTAINER FOR PAPERS =================== */
.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 80px; /* Added space to avoid overlapping with navbar */
    padding: 20px;
}

/* =================== INDIVIDUAL PAPER CARDS =================== */
.paper-card {
    width: 60%;
    background: #1e1e1e; /* Dark background for better contrast */
    padding: 25px;
    margin: 20px;
    border-radius: 12px;
    text-align: center;
    color: white;
    box-shadow: 0px 4px 12px rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease-in-out;
}

/* Hover Effect */
.paper-card:hover {
    transform: translateY(-5px);
}

/* =================== PAPER TITLE =================== */
.paper-card h2 {
    color: #ffa500; /* Orange title for better contrast */
    font-size: 22px;
    font-weight: bold;
    text-align: center;
}

/* =================== ABSTRACT & SUMMARY HEADINGS =================== */
.abstract-title, .summary-title {
    color: #ff9800; /* Bright Orange */
    font-size: 18px;
    font-weight: bold;
    text-align: left;
    margin-bottom: 5px;
}
/* Abstract & Summary Headings */
.abstract-heading, .summary-heading {
    color: #ffa500; /* Orange color */
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 8px;
}
/* Abstract & Summary Headings */
.abstract strong, .summary strong {
    color: #ffa500; /* Orange color */
    font-size: 18px;
    font-weight: bold;
}


/* =================== ABSTRACT & SUMMARY PARAGRAPHS =================== */
.abstract, .summary {
    font-size: 15px;
    color: #ddd;
    text-align: justify; /* Justify text for equal line length */
    max-width: 90%;
    margin: 0 auto; /* Center alignment */
    line-height: 1.6; /* Better spacing */
}
/* Add spacing between Abstract and Summary paragraphs */
.abstract {
    margin-bottom: 15px; /* Adds space below the Abstract */
}

/* =================== READ FULL PAPER BUTTON =================== */
.read-btn {
    display: block;
    width: 50%;
    margin: 20px auto 0; /* Centered */
    background: linear-gradient(to right, #ff7e5f, #feb47b); /* Orange Gradient */
    color: white;
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

/* Button Hover */
.read-btn:hover {
    background: linear-gradient(to right, #feb47b, #ff7e5f); /* Reverse Gradient */
}

/* =================== PDF VIEWER =================== */
.pdf-viewer {
    display: none;
    width: 80%;
    height: 500px;
    margin: auto;
    border: none;
}

/* =================== FOOTER =================== */
footer {
    background: #222;
    color: white;
    padding: 15px;
    text-align: center;
    margin-top: 30px;
}

/* =================== RESPONSIVE DESIGN =================== */
@media (max-width: 768px) {
    .paper-card {
        width: 90%; /* Adjust width for smaller screens */
        padding: 20px;
    }

    .abstract, .summary {
        max-width: 100%;
    }

    .read-btn {
        width: 80%; /* Adjust button size */
    }
}


/* Navbar */
/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, #0f0f0f, #232323);
    padding: 0px 0; /* Reduced padding to decrease height */
    box-shadow: 0px 4px 20px rgba(255, 140, 0, 0.7);
    z-index: 1000;
    display: flex;
    justify-content: center; /* Centering Navbar */
    align-items: center;
}

/* Navbar Links */
.nav-links li a {
    font-size: 16px; /* Adjusted size for better fit */
    padding: 6px 12px; /* Reduced padding to align with smaller navbar */
}

/* Navbar Container */
.nav-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 80%;
}

/* Navbar Links */
.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

/* Nav Items */
.nav-links li {
    display: inline-block;
    position: relative;
}

/* Navbar Text Styling */
.nav-links li a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    padding: 10px 15px;
    transition: 0.3s ease-in-out;
}

/* Hover Effect */
.nav-links li a:hover {
    color: black;
    background-color: rgba(255, 165, 0, 0.9);
    box-shadow: 0px 4px 10px rgba(255, 140, 0, 0.7);
    border-radius: 8px;
    padding: 12px 18px;
}

/* Hamburger Menu */
.hamburger {
    font-size: 28px;
    color: white;
    cursor: pointer;
    display: none;
}


/* =================== RESPONSIVE DESIGN =================== */
@media (max-width: 1024px) {
    .paper-card {
        width: 80%;
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .navbar {
        justify-content: space-between;
        padding: 10px;
    }

    .hamburger {
        display: block;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 50px;
        right: 0;
        background: #232323;
        width: 100%;
        text-align: center;
        padding: 10px 0;
    }

    .nav-links li {
        margin: 10px 0;
    }

    .nav-links.active {
        display: flex;
    }

    .paper-card {
        width: 90%;
        padding: 18px;
    }

    .read-btn {
        width: 80%;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 8px;
    }

    .hamburger {
        font-size: 24px;
    }

    .paper-card {
        width: 95%;
        padding: 15px;
    }

    .read-btn {
        width: 100%;
        padding: 10px;
        font-size: 14px;
    }
}