* {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

header {
    width: 100%;
    background-color: #1B2631;
    color: #F0F4FB;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    font-size: 18px;
}

.name {
    padding: 10px;
}

.nav_bar {
    min-width: 350px;
    max-width: 40%;
    display: flex;
    justify-content: space-evenly;
    flex-grow: 1;
    box-sizing: border-box;
}

.nav_bar a {
    text-decoration: none;
    color: #F0F4FB;
    padding: 10px 0;
    border-bottom: 4px solid #1B2631;
}

.nav_bar a:hover {
    border-bottom: 4px solid #A5C8D6;
}

@media screen and (max-width: 530px){
    header {
        justify-content: center;
    }
    .name {
        border-bottom: 2px solid rgb(209, 204, 204);
    }
}

/* Main Section */
body {
    line-height: 1.6;
    font-size: 16px;
}
main {
    padding: 20px;
}

.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    background-color: #f0f4fb;
    padding: 40px 20px;
    border-bottom: 2px solid #aaa;
    margin-bottom: 10px;
}
.hero-image img {
    width: 200px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 0 15px rgb(0, 0, 0, 0.1);
    margin: 10px;
}
.hero-content {
    text-align: center;
    max-width: 600px;
    margin: 10px;
}
.hero-content h1 {
    font-size: 2rem;
    color: #1B2631;
}
.hero-content h2 {
    font-size: 1.3rem;
    color: #444;
}

.hero-content p {
    font-size: 1rem;
    margin: 10px;
} 
#heading {
    text-align: center;
    font-size: 2.5rem;
    margin-top: 30px;
    color: #1B2631;
}
section h3 {
    color: #1B2631;
    font-size: 22px;
    margin-bottom: 5px;
    border-left: 5px solid #96c3d4;
    padding-left: 10px;
}
.cta-btn {
    display: inline-block;
    background-color: #1B2631;
    color: #F0F4FB;
    padding: 10px 10px;
    border-radius: 8px;
    text-decoration: none;
    margin: 15px 0 0 5px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}
.cta-btn:hover {
    background-color: #A5C8D6;
    color: #1B2631;
}
section, article {
    margin: 10px;
}

p {
    margin: 5px 0;
}
footer {
    background-color: #1B2631;
}
.copyright {
    color: #F0F4FB;
    text-align: center;
    padding: 10px 0;
    font-size: 0.9rem;
}
.footer-address {
    text-align: center;
    font-size: 0.9rem;
    color: #f0f4fb;
    padding-bottom: 10px;
}
.footer-address a {
    text-decoration: none;
    color: #A5C8D6;
}
.footer-address a:hover {
    text-decoration: underline;
}
/* Project page */
/* 
    Create a responsive grid layout:
    - 'repeat(auto-fit, ...)' = Automatically fit as many columns as possible in the available space.
    - 'minmax(320px, 1fr)' = Each column will be at least 320px wide but can grow to fill the remaining space equally.
*/
.project-grid, .articles-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    box-sizing: border-box;
}
.project-card, .article-card {
    border: 1px solid #d4d8dc;
    border-radius: 12px;
    padding: 20px;
    background-color: #f9fbfd;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.project-card:hover, .article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}
.project-card h2 {
    color: #1B2631;
    margin-bottom: 8px;
}
.project-card .tech, .article-card .tech {
    font-style: italic;
    color: #555;
    font-size: 0.9rem;
    margin-bottom: 10px;
}
.project-card ul {
    margin-left: 15px;
    font-size: 0.95rem;
}

/* Articles page */
/* .articles-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    padding: 20px;
    box-sizing: border-box;
} */

/* .article-card {
    border: 1px solid #a4a6a8;
    border-radius: 12px;
    background-color: #f9fbfd;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
} */

/* .article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
} */

.article-card .institution {
    margin: 10px;
}

.article-card .experience_heading {
    font-size: 1.3rem;
    color: #1B2631;
    margin-bottom: 10px;
    text-align: center;
}

.article-card h3 {
    margin-top: 10px;
    font-weight: 600;
}

.article-card ul {
    margin-left: 15px;
    line-height: 1.5;
}

/* .article-card .tech {
    font-style: italic;
    color: #555;
    font-size: 0.9rem;
} */
/* .institutions, .bold {
    font-weight: bold;
}

.experience_heading {
    margin: 10px 0;
} */

/* Contact Page */
.form_container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 20px;
    gap: 20px;
}

#message_section, #contact_section {
    width: 48%;
    min-width: 300px;
    border: 1px solid #a4a6a8;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 0 10px rgba(42, 42, 55, 0.1);
    background-color: #f9fbfd;
    box-sizing: border-box;
}

#fields {
    border: none;
}

label {
    display: block;
    margin-bottom: 12px;
    font-weight: 500;
}

.textarea, .msg_textarea {
    width: 100%;
    padding: 8px;
    background-color: #F0F4FB;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-sizing: border-box;
    margin-top: 5px;
}
input:focus, textarea:focus {
    outline: 2px solid #1B2631;
    background-color: #ffffff;
}

#submit_btn {
    width: 100%;
    background-color: #1B2631;
    color: #F0F4FB;
    height: 40px;
    margin-top: 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s ease;
} 

#submit_btn:hover {
    background-color: #A5C8D6;
    color: #1B2631;
}

.material-symbols-outlined {
  font-variation-settings:
  'FILL' 0,
  'wght' 400,
  'GRAD' 0,
  'opsz' 24;
  font-size: 24px;
  color: #1B2631;
}

.contact_block{
    display: flex;
    align-items: center;
    margin-top: 10px;
}
.contact_block p {
    margin-left: 10px;
} 
.contact_block a {
    text-decoration: none;
    color: #1B2631;
}
.contact_block a:hover {
    text-decoration: underline;
}
@media screen and (max-width: 750px) {
    .form_container {
        flex-direction: column;
    }
    #message_section, #contact_section {
        width: 100%;
    }
}