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

body, html {
    overflow-x: hidden;
    font-family: 'Roboto', sans-serif;
    color: #222;
    scroll-behavior: smooth;
    background: linear-gradient(135deg, #9a4caf 0%, #5872e6 90%);

}

.nav-button {
    display: inline-block;
    margin: 0 10px;
    padding: 12px 24px;
    background: rgba(98, 62, 133, 0.8);
    color: #ffffff;
    text-decoration: none;
    border-radius: 30px;
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.nav-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: width 0.3s ease;
    z-index: -1;
}

.nav-button:hover {
    background-color: rgba(118, 75, 162, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
}

.nav-button:hover::before {
    width: 100%;
}

.nav-button.active {
    background: rgba(118, 75, 162, 0.9);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.content-section {
    display: none;
    min-height: 100vh;
    padding-top: 30px;
    opacity: 0;
    transition: opacity 0.5s ease;
    position: relative;
    z-index: 10;
}

.content-section.active {
    display: block;
    opacity: 1;
}

.content-section h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #222;
}

.content-section p {
    text-align: center;
    font-size: 18px;
    color: #222;
}

/* Fixed navigation bar on scroll */
.fixed-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(88, 114, 230, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.fixed-nav.visible {
    transform: translateY(0);
}

@media (max-width: 600px) {
    .nav-button {
        padding: 10px 16px;
        font-size: 0.9em;
        margin: 0 5px;
    }
}