/* Thomas Parr Website - Shared Styles */

/* Reset and base styles */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background-color: rgb(255, 255, 255);
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    font-family: "Times New Roman", Times, serif;
    color: rgb(59, 59, 59);
}

/* Header Styles */
.headerbar {
    background-color: rgb(34, 34, 34);
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.site-title {
    color: azure; 
    display: block;
    text-align: left;
    padding: 28px 80px 28px 10px;
    text-decoration: none;
    font-size: 18px;
    font-family: "Times New Roman", Times, serif; 
    font-weight: bold;
    transition: color 0.3s ease;
}

.site-title:hover {
    color: #ffffff;
}

/* Navigation Styles */
nav {
    position: relative;
}

.menu-icon {
    display: none;
    font-size: 28px;
    color: azure;
    cursor: pointer;
    padding: 14px 20px;
    transition: color 0.3s ease;
}

.menu-icon:hover {
    color: #ffffff;
}

#nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    background: none;
}

#nav-links li {
    float: none;
}

#nav-links li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 16px;
    font-family: "Times New Roman", Times, serif;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease;
}

#nav-links li a:hover:not(.active) {
    background-color: #111;
    color: #ffffff;
}

#nav-links li a.active {
    background-color: #555;
    color: #ffffff;
}

/* Main Content Styles */
.main {
    padding: 16px;
    margin-top: 64px;
    font-family: "Times New Roman", Times, serif; 
    color: rgb(59, 59, 59);
    flex: 1;
}

.main a {
    font-family: "Times New Roman", Times, serif; 
    color: rgb(138, 138, 138);    
    text-decoration: none;
    transition: color 0.3s ease;
}

.main a:hover {
    color: rgb(59, 59, 59);
    text-decoration: underline;
}

/* Footer Styles */
.footerbar {
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: rgb(34, 34, 34);
    height: 100%;
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 28px;
    line-height: 1.6;
    margin-top: auto;
}

.footerbar a {
    color: azure;
    font-family: "Times New Roman", Times, serif;
    text-decoration: none;
    font-size: 16px;
    text-align: center;
    transition: color 0.3s ease;
    margin-bottom: 8px;
}

.footerbar a:hover {
    color: #ffffff;
    text-decoration: underline;
}

/* Layout Styles */
.column {
    display: -ms-flexbox; /* IE10 */
    display: flex;
    -ms-flex-wrap: wrap; /* IE10 */
    flex-wrap: wrap;
    padding: 0 80px;
}

.row {
    -ms-flex: 33%; /* IE10 */
    flex: 33%;
    max-width: 100%;
    padding: 0 0px;
}

.row img {
    display: inline-block;
    margin-top: 0px;
    width: 100%;
    vertical-align: middle;
}

/* Image overlay styles for homepage */
.container {
    position: relative;
    width: 100%;
    height: 100%;
}

.image {
    display: block;
    width: 100%;
    height: auto;
}

.overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
    opacity: 0;
    transition: .5s ease;
    background-color: #40424b;
}

.container:hover .overlay {
    opacity: 0.8;
}

.text {
    color: white;
    font-size: 20px;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    text-align: center;
}

/* Physics slides specific styles */
.physics-main {
    padding: 16px;
    margin-top: 56px;
    font-family: "Times New Roman", Times, serif; 
    color: rgb(59, 59, 59);
    text-align: left;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.physics-main img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto 16px auto;
}

/* Responsive Design */
@media screen and (max-width: 500px) {
    .row {
        -ms-flex: 100%;
        flex: 100%;
        max-width: 100%;
    }
    
    .column {
        padding: 0 20px;
    }
    
    .menu-icon {
        display: block;
    }
    
    #nav-links {
        display: none;
        position: absolute;
        right: 0;
        top: 56px;
        background: #333;
        flex-direction: column;
        width: 150px;
        z-index: 1001;
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    }
    
    #nav-links.show {
        display: flex;
    }
    
    #nav-links li a {
        padding: 14px 16px;
        border-bottom: 1px solid #444;
    }
    
    .site-title {
        padding: 28px 20px 28px 10px;
        font-size: 16px;
    }
    
    .footerbar {
        padding: 20px;
    }
    
    .footerbar a {
        font-size: 14px;
    }
}

@media screen and (max-width: 768px) {
    .column {
        padding: 0 40px;
    }
    
    .main {
        padding: 12px;
    }
}

/* Print styles */
@media print {
    .headerbar,
    .footerbar {
        display: none;
    }
    
    .main,
    .physics-main {
        margin-top: 0;
    }
}