/* Navigation Bar Styling */
.nav-bar {
    background-color: #1a1a1a;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.nav-bar nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-bar nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0;
}

.nav-bar nav li {
    margin: 0;
}

.nav-bar nav a {
    display: block;
    padding: 16px 20px;
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.nav-bar nav li:first-child a {
    font-weight: 700;
    font-size: 18px;
    padding: 16px 20px 16px 0;
    margin-right: auto;
}

.nav-bar nav a:hover {
    background-color: #333333;
    color: #4a90e2;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-bar nav ul {
        flex-wrap: wrap;
        gap: 0;
    }

    .nav-bar nav a {
        padding: 12px 15px;
        font-size: 14px;
    }

    .nav-bar nav li:first-child a {
        font-size: 16px;
        padding: 12px 15px 12px 0;
    }
}

@media (max-width: 480px) {
    .nav-bar nav a {
        padding: 10px 12px;
        font-size: 13px;
    }

    .nav-bar nav li:first-child a {
        font-size: 14px;
    }
}

/* General Styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f7f7f7;
}

h1, h2, h3, h4, h5, h6 {
    margin: 20px 0 10px 0;
}

a {
    color: #4a90e2;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Page layout */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 20px;
}

/* Header styles */
.top-header {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    margin-top: 18px;
}

.bottom-header {
    font-size: 18px;
    color: #555;
    margin-bottom: 18px;
}

.about-text p {
    max-width: 70ch;
}

/* Skills layout */
.skills {
    display: grid;
    gap: 20px;
    margin-top: 12px;
}

.tech-skills, .soft-skills {
    display:block;
    border: 1px solid #ddd;
    background: #fff;
    padding: 16px;
    border-radius: 8px;
}

/* Responsive images and embedded content */
img, .responsive-img {
    max-width: 100%;
    height: auto;
    display: block;
}

iframe {
    max-width: 100%;
}

.responsive-iframe {
    width: 100%;
    height: 500px;
    border: none;
}

.ventra {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-top: 16px;
}

.ventra-image {
    width: 40%;
    border-radius: 8px;
}

.ventra-body {
    flex: 1;
}

/* Active nav link */
.nav-bar nav a.active {
    color: #ffd54f;
    background-color: #222;
}

/* Smaller screens: stack skills */
@media (max-width: 768px) {
    .skills {
        grid-template-columns: 1fr;
    }
}
/* PDF Container Styling */
.pdf-container {
    max-width: 900px;
    margin: 30px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.pdf-container embed {
    width: 100%;
    height: 800px;
    display: block;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .pdf-container {
        padding: 15px;
        margin: 20px auto;
    }

    .pdf-container embed {
        height: 600px;
    }
}

/* Videos Container Styling */
.videos-container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.video-item {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    overflow: hidden;
}

.video-item h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #1a1a1a;
    font-size: 20px;
}

.video-item video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .videos-container {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 15px;
    }
}