* {
     font-family: Helvetica, "Helvetica-Neue", Arial, sans-serif;
     box-sizing: border-box;
 }

html, body {
    margin: 0;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #4a5568 100%);
    min-height: 100vh;
    color: #333;
}

.sidebar-nav, main {
    background: rgba(255, 255, 255, 0.95);
    padding: 1.5em;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    margin-bottom: 1.5em;
}

header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    height: 80px;
    padding: 0;
    border-radius: 12px;
    margin-bottom: 1.5em;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

aside {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    padding: 0.5em;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    margin-bottom: 0.2em;
    height: fit-content;
}

aside img {
    max-width: 100%;
    padding: 0 0.5em;
    border-radius: 8px;
}

aside p {
    text-align: center;
    color: #2c3e50;
    font-weight: 600;
    margin-top: 0.5em;
    margin-bottom: 0;
}

nav ul {
    list-style: none;
    line-height: 1.5em;
    padding: 0;
}

.sidebar-nav ul {
    list-style: disc;
    line-height: 1.5em;
    padding: 0;
    background: rgba(52, 152, 219, 0.05);
    padding: 1.5em 2em;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

.sidebar-nav ul li {
    margin-bottom: 0.8em;
    padding: 0.5em;
    border-radius: 6px;
    transition: background-color 0.3s ease;
    line-height: 1.6;
}

.sidebar-nav ul li:hover {
    background-color: rgba(52, 152, 219, 0.1);
}

.sidebar-nav ul li a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.sidebar-nav ul li a:hover {
    color: #3498db;
    text-decoration: none;
}

main h1 {
    font-family: 'Patua One', cursive;
    margin-top: 0.25em;
    color: #2c3e50;
    border-bottom: 3px solid #3498db;
    padding-bottom: 0.5em;
}

main h2 {
    color: #34495e;
    margin-top: 1.5em;
    border-left: 4px solid #3498db;
    padding-left: 1em;
}

main h3 {
    color: #5b7983;
    margin-top: 1em;
    font-weight: 600;
}

main img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

main ul {
    background: rgba(52, 152, 219, 0.05);
    padding: 1.5em 2em;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}

main ul li {
    margin-bottom: 0.8em;
    line-height: 1.6;
}

.cta {
    display: block;
    color: white;
    margin: 1.5em auto;
    font-family: 'Patua One', cursive;
    font-weight: bold;
    width: 15em;
    border-radius: 25px;
    border: none;
    text-align: center;
    text-decoration: none;
    font-size: 1em;
    padding: 1em;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
    background: linear-gradient(135deg, #2980b9 0%, #1f5f8b 100%);
}

body img {
    object-fit: cover;
    max-width: 100%;
    border-radius: 8px;
    border: 2px solid rgba(52, 152, 219, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

footer {
    text-align: center;
    color: white;
    padding: 1.5em;
    margin-top: 2em;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

a:active, :focus {
    outline: 2px solid #3498db;
    color: white;
    background: #3498db;
}

.bottom-nav {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 1em;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    text-align: center;
}

.bottom-nav img {
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.website-nav {
    padding: 1em 1.5em;
}

.website-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.website-nav ul li {
    float: left;
    padding: 0.5rem 2rem 0.5rem 0;
    line-height: 21px;
    color: white;
}

.website-nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.website-nav ul li a:hover {
    color: #3498db;
}

.home-link {
    font-weight: bold;
    font-size: 1.1em;
}

/* Additional professional styling */
hr {
    border: none;
    height: 2px;
    background: linear-gradient(90deg, transparent, #3498db, transparent);
    margin: 2em 0;
}

main p {
    line-height: 1.7;
    color: #2c3e50;
}

main strong {
    color: #2c3e50;
}

main em {
    color: #7f8c8d;
    font-style: italic;
}

.left-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5em;
}

.left-sidebar aside {
    margin-bottom: 0;
}

.left-sidebar .sidebar-nav {
    margin-bottom: 0;
}