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

body {
    font-family: 'Siemens Sans', 'Segoe UI', Arial, Helvetica, sans-serif;
    line-height: 1.6;
    padding: 20px 20px 80px 20px;
    background-color: #f2f7f7; 
    color: #1a2020;
}

h1, .main-title, h2, h3 {
    color: #009999; 
    margin-bottom: 15px;
}

.main-title {
    font-size: 2.5rem;
    margin-bottom: 5px;
}

.navbar-nav .nav-link {
    color: #ffffff;
    transition: transform 0.3s ease, color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: #009999;
    transform: scale(1.08);
}

.navbar-brand {
    color: #ffffff;
}

.bio {
    font-size: 1.15rem;
    color: #1a2020;
    line-height: 1.8;
    margin-bottom: 15px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    background-color: #ffffff;
}

th, td {
    border: 1px solid #d5e0e0;
    padding: 12px;
    text-align: left;
}

/* Customizes table headers with primary brand color and bold text */
th {
    background-color: #009999;
    color: #ffffff;
    font-weight: bold;
}

/* Adds a double accent border for extra flair requirement, alignment, and hover shadows */
img {
    max-width: 100%;
    height: auto;    
    border: 4px double #009999; /* Updated to double line brand accent border */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
    border-radius: 6px;
    transition: transform 0.3s ease;
    margin: 20px 0;
}

img:hover {
    transform: scale(1.03);
}

#site-footer {
    background-color: #2d3737;     
    color: #d5e0e0;                
    margin-top: 60px;              
    padding: 20px 15px;            
    border-top: 3px solid #009999;
    border-radius: 4px;           
    text-align: center;
    font-size: 0.85rem;
}

/* UNIQUE STYLE 1: Standardized clean content wrapper layout */
.content-card {
    background-color: #ffffff;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

/* UNIQUE STYLE 2: Premium action that calls button element for submission forms */
.btn-submit {
    display: inline-block;
    padding: 12px 24px;
    background-color: #007777; 
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.btn-submit:hover {
    background-color: #005555;
}

/* Consolidated high-contrast button styling to clear Lighthouse violations */
.btn-text-white, #show-content {
    background-color: #007777 !important;
    color: #ffffff !important;            
    padding: 10px 24px;
    border: none;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease-in-out;
}

.btn-text-white:hover, #show-content:hover {
    background-color: #005555 !important;
    transform: scale(1.04) !important;
}

#colorButton {
    transition: all 0.2s ease-in-out;
}

#colorButton:hover {
    transform: scale(1.04);
}

.hidden {
    display: none;
}